Beam Indication Method, Device and System
Technical field
[0001]
The present invention relates to the field of communications, in particular to a beam indicating method, device and system.
Background technique
[0002]
In order to enhance the throughput and coverage of the communication system in the high frequency band, when the carrier frequency is greater than 6 GHz, the new radio (NR) system introduces a beam management mechanism.
[0003]
For the downlink, the beam indication mechanism of the data channel (PDSCH) is as follows: the network device configures the transmission configuration indication state (Transmission Configuration Indication State, TCI state) through high-level signaling. Each state in the TCI corresponds to one or more downlink reference signals, which are used to determine the quasi co-located (QCL) of the antenna port.
[0004]
When the TCI-PresentInDCI field of a certain control resource set (CORESET) is set to "enabled", the terminal device considers that the downlink control information (DCI) on the CORESET exists in the TCI area. At the same time, if the scheduling interval (Scheduling Offset) is greater than the preset threshold Threshold-Sched-Offset, the terminal device determines the quasi positioning synchronization of the antenna port according to the TCI-States indicated by the TCI area.
[0005]
When the TCI-PresentInDCI field of a certain CORESET is set to "disable", or the PDSCH is scheduled by DCI format 1_0, the terminal device considers that the DCI on the CORESET does not have a TCI area. At the same time, if the scheduling interval (Scheduling Offset) is greater than the preset threshold Threshold-Sched-Offset, the TCI state of the terminal device receiving the PDSCH is the same as the TCI state applied by CORESET.
[0006]
For all the above scenarios, if the scheduling interval (Scheduling Offset) is less than the preset threshold Threshold-Sched-Offset, the TCI state of the terminal device receiving the PDSCH is the same as the TCI state used by the CORESET with the smallest number in the latest time slot.
[0007]
For the uplink data channel (PUSCH), the beam indication mechanism is as follows: For the PUSCH scheduled by DCI format 0_0, the terminal device transmits the PUSCH according to the spatial relationship of the smallest PUCCH resource on the activated BWP of the current cell. For the PUSCH scheduled by the DCI format 0_1, the terminal device transmits the PUSCH according to the spatial relationship of the sounding reference signal (SRS) indicated by the reference signal resource indication (SRI) area in the DCI.
[0008]
For the uplink control channel (PUCCH), the beam indication mechanism is as follows: After the PUCCH resource is configured in a specific RRC signaling, the spatial relationship of all PUCCH resources will be indicated by a spatial relationship table, and each entry in the table is determined by the higher layer. Signaling provided by PUCCH-Spatialrelationinfo. When there is only one entry in the spatial relationship table, the entry takes effect directly. When the spatial relationship table contains multiple entries, each PUCCH resource activates one of the entries through media access control unit (MAC-CE) signaling.
[0009]
In addition, a semi-persistent scheduling mechanism is also introduced in the NR system. Semi-Persistent Scheduling (SPS) refers to the semi-static configuration of wireless resources by network equipment and the periodic allocation of the wireless resources to a specific terminal device. The advantage of this scheduling method is that it can save control signaling (PDCCH) overhead. In the latest wireless system evolution (Release 15), the function of semi-persistent scheduling is further enhanced. The following describes the existing semi-persistent scheduling mechanism from two aspects of uplink and downlink respectively.
[0010]
For the downlink, only the data channel (PDSCH) can be configured for semi-persistent scheduling. The network equipment (gNB) configures the period of semi-persistent scheduling, the number of hybrid automatic repeat request (HARQ) processes, and the PUCCH resources used by HARQ through radio resource control (RRC) signaling. When the downlink semi-persistent scheduling configuration is completed, it cannot be used immediately, and the DCI scrambled by the cell scheduling radio network temporary identification (CS-RNTI) must be used for activation. When the semi-persistent scheduling ends, the DCI scrambled by CS-RNTI must be used to deactivate.
[0011]
For the uplink, both the data channel (PUSCH) and the channel state information feedback (CSI Report) can be configured as semi-persistent scheduling.
[0012]
For the uplink carrying PUSCH, SPS can be divided into two types: Type 1 PUSCH transmissions with a configured grant (Type 1) and Type 2 PUSCH transmissions with a configured grant (Type 2). Type 1 means that the uplink scheduling resource is configured only by RRC signaling, and the configured information includes frequency resource information, time resource information, period information, SRI, etc. Type1 transmission does not require DCI activation, and the transmission starts after the RRC configuration is completed. Type 2 means that part of the uplink scheduling information is configured by RRC. After the configuration is completed, the scheduling cannot be executed immediately and must be activated with DCI scrambled by CS-RNTI. When the uplink scheduling ends, the DCI scrambled by the CS-RNTI must be used for deactivation.
[0013]
For the uplink carrying channel state information feedback, SPS can be divided into three types: PUCCH-based semi-persistent CSI reporting; PUSCH-based semi-persistent CSI reporting; PUCCH-based periodic CSI reporting. Among them, PUCCH-based semi-persistent CSI reporting needs to use MAC-CE signaling to activate and deactivate after RRC configuration is completed; PUSCH-based semi-persistent CSI reporting needs to use semi-persistent scheduling after RRC configuration is completed-channel state information- The DCI scrambled by the radio network temporary identification (SP-CSI-RNTI) is activated and deactivated; the periodic CSI report based on the PUCCH takes effect directly after the RRC configuration is completed.
[0014]
It should be noted that the above introduction to the technical background is only for the convenience of a clear and complete description of the technical solution of the present invention and to facilitate the understanding of those skilled in the art. It should not be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present invention.
[0015]
Summary of the invention
[0016]
The inventor found that when the network device configures the above-mentioned semi-persistent scheduling for the terminal device, the beam indication for the semi-persistent scheduling is ambiguous.
[0017]
As shown in Figure 1, beam indications for semi-persistent scheduling can be divided into three types of scenarios. Each scenario has a different activation method for semi-persistent scheduling, which are DCI (CS-RNTI or SP-CSI-RNTI), MAC-CE and RRC. For each scenario, the first transmission (denoted as #1) after the activation signaling is triggered can be determined based on the existing beam indication mode. However, after the corresponding first transmission and before the next activation or deactivation signaling, the terminal device does not know which beam is used to upload or receive.
[0018]
In order to solve at least one of the above-mentioned problems or solve other similar problems, embodiments of the present invention provide a beam indication method, device and system.
[0019]
According to a first aspect of the embodiments of the present invention, there is provided a beam indication method, wherein the method includes:
[0020]
The terminal device receives activation signaling, and the activation signaling activates at least one transmission;
[0021]
The terminal device sends or receives the at least one transmission according to the following understanding: before receiving the deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter Either transmission hypothesis, or use of respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling.
[0022]
According to a second aspect of the embodiments of the present invention, there is provided a beam indication method, wherein the method includes:
[0023]
The network device sends activation signaling to the terminal device, and the activation signaling activates at least one transmission of the terminal device, so that the terminal device can send or receive the at least one transmission according to the following understanding: Order or before the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission hypothesis, or use their respective spatial filters or transmissions determined by dynamically interpreting the activation signaling Hypothesis.
[0024]
According to a third aspect of the embodiments of the present invention, there is provided a beam indicating device, which is configured in a terminal device, wherein the device includes:
[0025]
A receiving unit, which receives activation signaling, which activates at least one transmission;
[0026]
A transmission unit, which transmits or receives the at least one transmission according to the following understanding: before receiving the deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter Either transmission hypothesis, or use of respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling.
[0027]
According to a fourth aspect of the embodiments of the present invention, there is provided a beam indicating device, which is configured in a network device, wherein the device includes:
[0028]
A sending unit, which sends activation signaling to a terminal device, and the activation signaling activates at least one transmission of the terminal device, so that the terminal device sends or receives the at least one transmission according to the following understanding: Before activation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission hypothesis, or use the respective spatial filters determined by dynamically interpreting the activation signaling Or transmission hypothesis.
[0029]
According to a fifth aspect of the embodiments of the present invention, there is provided a terminal device, wherein the terminal device includes the apparatus described in the foregoing third aspect.
[0030]
According to a sixth aspect of the embodiments of the present invention, there is provided a network device, wherein the network device includes the apparatus described in the foregoing fourth aspect.
[0031]
According to a seventh aspect of the embodiments of the present invention, a communication system is provided. The communication system includes the terminal device described in the fifth aspect and the network device described in the sixth aspect.
[0032]
According to other aspects of the embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in a terminal device, the program causes the computer to execute the method described in the foregoing first aspect in the terminal device .
[0033]
According to other aspects of the embodiments of the present invention, there is provided a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in the foregoing first aspect in a terminal device.
[0034]
According to other aspects of the embodiments of the present invention, a computer-readable program is provided, wherein when the program is executed in a network device, the program causes the computer to execute the method described in the foregoing second aspect in the network device .
[0035]
According to other aspects of the embodiments of the present invention, there is provided a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in the foregoing second aspect in a network device.
[0036]
The beneficial effects of the embodiments of the present invention are: in the embodiments of the present invention, for semi-persistent scheduling or periodic scheduled transmission, the same spatial filtering is used between activation signaling and deactivation signaling or the next activation signaling. The transmitter or transmission hypothesis, or the respective spatial filter or transmission hypothesis determined by dynamically interpreting the activation signaling, performs transmission or reception, which solves the problem of ambiguity in the beam indication in the above interval.
[0037]
With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby. Within the spirit and scope of the terms of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents.
[0038]
Features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for features in other embodiments .
[0039]
It should be emphasized that the term "comprising/comprising" when used herein refers to the existence of a feature, a whole, a step or a component, but does not exclude the existence or addition of one or more other features, a whole, a step or a component.
Description of the drawings
[0040]
The elements and features described in one drawing or one embodiment of the embodiment of the present invention may be combined with the elements and features shown in one or more other drawings or embodiments. In addition, in the drawings, similar reference numerals indicate corresponding parts in several drawings, and may be used to indicate corresponding parts used in more than one embodiment.
[0041]
The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principle of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor. In the attached picture:
[0042]
Figure 1 is a schematic diagram of an existing scheduling scenario;
[0043]
Figure 2 is a schematic diagram of a communication system according to an embodiment of the present invention;
[0044]
FIG. 3 is a schematic diagram of the beam indicating method of Embodiment 1;
[0045]
4 is a schematic diagram of the beam indicating method of Embodiment 2;
[0046]
Fig. 5 is a schematic diagram of a beam indicating device of embodiment 3;
[0047]
Fig. 6 is a schematic diagram of a beam indicating device of embodiment 4;
[0048]
FIG. 7 is a schematic diagram of a terminal device of Embodiment 5;
[0049]
FIG. 8 is a schematic diagram of a network device of Embodiment 6.
detailed description
[0050]
With reference to the drawings, the foregoing and other features of the present invention will become apparent through the following description. In the specification and drawings, specific embodiments of the present invention are specifically disclosed, which indicate some embodiments in which the principles of the present invention can be adopted. It should be understood that the present invention is not limited to the described embodiments. On the contrary, the present invention The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.
[0051]
In the embodiments of the present invention, the terms "first", "second", etc. are used to distinguish different elements in terms of appellations, but they do not indicate the spatial arrangement or temporal order of these elements. These elements should not be used by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having" and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
[0052]
In the embodiments of the present invention, the singular forms "a", "the", etc. include plural forms, which should be broadly understood as "a" or "a type" rather than being limited to the meaning of "a"; in addition, the term "so" "Said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "based on" should be understood as "based at least in part on...", and the term "based on" should be understood as "based at least in part on..." unless the context clearly dictates otherwise.
[0053]
In the embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access), etc.
[0054]
In addition, the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other currently known or future communication protocols.
[0055]
In the embodiments of the present invention, the term "network device" refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
[0056]
Among them, the base station may include, but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low-power node (such as femto, pico, etc.). And the term "base station" can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and/or its coverage area, depending on the context in which the term is used.
[0057]
In the embodiment of the present invention, the term "User Equipment" (UE, User Equipment) refers to, for example, a device that accesses a communication network through a network device and receives network services, and may also be referred to as "Terminal Equipment" (TE, Terminal Equipment). The terminal device can be fixed or mobile, and can also be called a mobile station (MS, Mobile Station), terminal, user, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc. Wait.
[0058]
Among them, terminal devices may include but are not limited to the following devices: cellular phones (Cellular Phone), personal digital assistants (PDAs, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.
[0059]
For another example, in scenarios such as the Internet of Things (IoT), the terminal device may also be a machine or device that performs monitoring or measurement. For example, it may include but is not limited to: Machine Type Communication (MTC) terminals, Vehicle-mounted communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
[0060]
The following describes the scenario of the embodiment of the present invention through an example, but the embodiment of the present invention is not limited to this.
[0061]
FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present invention, schematically illustrating a case where a terminal device and a network device are taken as an example. As shown in FIG. 2, the communication system 200 may include: a network device 201 and a terminal device 202. For the sake of simplicity, Figure 2 only uses one terminal device as an example for illustration. The network device 201 is, for example, the network device gNB in ​​the NR system.
[0062]
In the embodiment of the present invention, existing services or services that can be implemented in the future can be performed between the network device 201 and the terminal device 202. For example, these services include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), massive machine type communication (mMTC, massive machine type communication), and highly reliable and low-latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), etc.
[0063]
Wherein, the terminal device 202 can send data to the network device 201, for example, using an unauthorized transmission mode. The network device 201 can receive data sent by one or more terminal devices 202, and feedback information (for example, acknowledgement ACK/non-acknowledgement NACK) information to the terminal device 202, and the terminal device 202 can confirm the end of the transmission process according to the feedback information, or can further Perform new data transmission, or data retransmission can be performed.
[0064]
Various embodiments of the present invention will be described below in conjunction with the drawings. These embodiments are only exemplary, and are not limitations to the present invention.
[0065]
Example 1
[0066]
This embodiment provides a beam indication method, which is applied to terminal equipment. FIG. 3 is a schematic diagram of the beam indication method of this embodiment. Please refer to FIG. 3. The method includes:
[0067]
Step 301: The terminal device receives activation signaling, and the activation signaling activates at least one transmission;
[0068]
Step 302: The terminal device sends or receives the at least one transmission according to the following understanding: before receiving the deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same Spatial filters or transmission hypotheses, or use respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling.
[0069]
In this embodiment, the above activation signaling can be CS-RNTI scrambled DCI, SP-CSI-RNTI scrambled DCI, MAC-CE, or RRC signaling, but this embodiment This is not a limitation. According to the development of communication standards, the activation signaling may also be other signaling.
[0070]
In this embodiment, the above-mentioned at least one transmission can be a semi-persistent scheduled downlink transmission, such as PDSCH; it can also be a semi-persistent scheduled uplink transmission, such as Type1 PUSCH transmission, Type2 PUSCH transmission, PUSCH-based semi-persistent CSI reporting, PUCCH semi-persistent CSI reporting; it can also be periodic CSI based on uplink transmission, for example, periodic CSI reporting based on PUCCH. However, this embodiment is not limited to this, and the above at least one transmission may also be other types of uplink transmission or downlink transmission.
[0071]
In this embodiment, using the same spatial filter or transmission hypothesis means: all transmissions activated by the activation signaling are based on the same spatial filter or reference signal; or, in the activation signaling and the activation signaling In the case that the scheduling distance between the first activated transmissions is greater than the preset threshold, the first transmission among all transmissions activated by the activation signaling is based on the spatial filter or reference signal indicated by the activation signaling, All transmissions except the first transmission are based on the same spatial filter or reference signal as the first transmission; or, the scheduling distance between the activation signaling and the first transmission activated by the activation signaling is less than the predetermined In the case of a preset threshold, the first transmission after the preset threshold is based on the spatial filter or reference signal indicated by the above activation signaling, and the first transmission after the preset threshold except the first transmission All transmissions are based on the same spatial filter or reference signal as the first transmission. Here, the preset threshold is called threshold-Sched-Offset in the existing standard, and its setting method and principle are the same as those of the existing standard, and will not be repeated here.
[0072]
In this embodiment, using the respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling means that each transmission activated by the activation signaling is interpreted according to the activation signaling at a predetermined time. And the determined spatial filter or reference signal. Here, for each transmission, its respective predetermined time is fixed, and this embodiment does not limit the manner of setting the respective predetermined time of each transmission.
[0073]
The beam indication method of this embodiment will be described below in conjunction with different implementation manners (scenarios).
[0074]
Implementation mode 1:
[0075]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled downlink transmission, the activation signaling is DCI scrambled by CS-RNTI, the DCI does not include the TCI area, and the activation signaling and the activation signaling are activated The scheduling distance between the first transmissions (that is, the scheduling interval described in the background art) is greater than the preset threshold Threshold-Sched-Offset, then the terminal device can understand the downlink receiving the semi-persistent scheduling according to any of the following transmission:
[0076]
Understanding 1: The TCI status of the first transmission activated by the above DCI is the same as the TCI status applied by the resource control set (CORESET) that carries the DCI. The basis for other transmissions except the first transmission activated by the above DCI is the same as the first transmission. One transmits the same reference signal used to determine the quasi positioning synchronization of the antenna port;
[0077]
Understanding 2: The TCI state of each transmission activated by the above DCI is the same as the TCI state applied by a CORESET in the most recent time slot. If the CORESET carrying the above DCI exists, then the one CORESET refers to the CORESET carrying the above DCI; if If the CORESET carrying the aforementioned DCI does not exist, then the one CORESET refers to the CORESET with the smallest number on the activated carrier bandwidth (BWP) of the same cell as the aforementioned DCI.
[0078]
Hereinafter, this embodiment will be described by taking the example that the downlink transmission of the semi-persistent scheduling is the PDSCH.
[0079]
In this embodiment, in downlink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the semi-persistent scheduling PDSCH is activated by the DCI scrambled by the CS-RNTI. At this time, the DCI does not include the TCI area, or it can be understood that the DCI satisfies the following conditions, that is, the format of the DCI is 1_0 or the high-level parameter TCI-PresentInDCI of the CORESET transmitting the DCI is set to "disabled". If the scheduling distance between the DCI and the first semi-persistent scheduled PDSCH activated by it is greater than the Threshold-Sched-Offset. Then the following beam indication method can be used for the semi-persistent scheduled PDSCH activated by the DCI:
[0080]
Method 1: The TCI state of the first PDSCH activated by the DCI is the same as the TCI state applied by the CORESET carrying the DCI. Before being reactivated/deactivated by the next DCI scrambled by CS-RNTI (in the same cell as the above DCI), the following PDSCH activated by the DCI and the first PDSCH activated by the DCI (in order to determine The reference signal used by the antenna port is the same. In this method 1, all reference signals for determining the quasi positioning synchronization of the PDSCH antenna ports are the same before the DCI is reactivated/deactivated, thereby reducing the system complexity.
[0081]
Method 2: Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by CS-RNTI, the terminal device thinks that the TCI status of each PDSCH activated by the DCI will be the same as a CORESET The TCI status applied in the time slot is the same. This CORESET means that if the CORESET that carries the activation signaling exists, it is the CORESET that carries the activation command (CS-RNTI scrambled DCI); if the CORESET that carries the activation signaling does not exist, it means that it is in (with the above The smallest numbered CORESET on the activated BWP of the DCI in the same cell. In this method 2, each reference signal for determining the quasi positioning synchronization of the PDSCH antenna port can dynamically follow the reference signal associated with the TCI state of CORESET. In a scenario where the beam direction often changes, there is no need to use DCI reactivation multiple times to change the beam indication, which reduces the DCI overhead.
[0082]
Implementation mode 2:
[0083]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled downlink transmission, and the activation signaling is DCI scrambled by CS-RNTI. The DCI does not include the TCI area. The activation signaling and the activation signaling is activated by the activation signaling. If the scheduling distance between a transmission is less than the preset threshold Threshold-Sched-Offset, the terminal device can receive the semi-persistent scheduled downlink transmission according to any of the following understandings:
[0084]
Understanding 1: For the transmission activated by the above DCI, the TCI state of the transmission before the above preset threshold is the same as the TCI state of the lowest numbered CORESET on the activated BWP in the most recent time slot (in the same cell as the above DCI) , The TCI state of the first transmission after the above-mentioned preset threshold is the same as the TCI state of the CORESET carrying the DCI, and the basis of transmissions other than the first transmission after the above-mentioned preset threshold is the same as that of the first transmission. Two identical reference signals used to determine the quasi-positioning synchronization of antenna ports;
[0085]
Understanding 2: For the transmission activated by the above DCI, the TCI state of the transmission before the above preset threshold is the same as the TCI state of the smallest numbered CORESET on the activated BWP in the most recent time slot (in the same cell as the above DCI) , The TCI state of the transmission after the above-mentioned preset threshold is the same as the TCI state of a CORESET in the most recent time slot. This CORESET means that if the CORESET carrying the DCI exists, it means the CORESET carrying the above DCI; Or, if the CORESET carrying the DCI does not exist, the aforementioned CORESET refers to the CORESET with the smallest number on the activated BWP in the same cell as the aforementioned DCI;
[0086]
Understanding 3: The TCI state and the most recent time slot of each transmission activated by the above DCI are the same as the TCI state with the smallest numbered CORESET among the activated BWPs of the above DCI in the same cell.
[0087]
Hereinafter, this embodiment will be described by taking the example that the downlink transmission of the semi-persistent scheduling is the PDSCH.
[0088]
In this embodiment, in downlink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the semi-persistent scheduling PDSCH is activated by the DCI scrambled by the CS-RNTI. At this time, the DCI does not include the TCI area, or it can be understood that the DCI meets the following conditions, that is, the format of the DCI is 1_0 or the RRC parameter TCI-PresentInDCI of the CORESET transmitting the DCI is set to "disabled". If the scheduling distance between the DCI and the first semi-persistent scheduled PDSCH activated by it is less than Threshold-Sched-Offset. Then the following beam indication method can be used for the semi-persistent scheduled PDSCH activated by the DCI:
[0089]
Method 1: The terminal device considers that: the TCI state of each PDSCH (activated by the DCI) before the Threshold-Sched-Offset and the BWP with the lowest numbered CORESET on the activated BWP (in the same cell as the above DCI) in the latest time slot The TCI status is the same. The TCI state of the first PDSCH that exceeds the Threshold-Sched-Offset activated by the DCI is the same as the TCI state of the CORESET carrying the DCI. Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by CS-RNTI, the first PDSCH that exceeds Threshold-Sched-Offset and the following PDSCH (in order to determine The reference signal used by the antenna port is the same. In this method 1, all reference signals for determining the quasi positioning synchronization of the PDSCH antenna port are the same after the Threshold-Sched-Offset and before the DCI is reactivated/deactivated, thereby reducing the system complexity.
[0090]
Method 2: The terminal device considers: the TCI status of each PDSCH (activated by the DCI) before the Threshold-Sched-Offset and the TCI with the smallest CORESET number on the BWP activated in the most recent time slot (in the same cell as the above DCI) The status is the same. Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by CS-RNTI, the TCI state of each PDSCH that exceeds the Threshold-Sched-Offset activated by the DCI will be in the same state as a CORESET. The TCI status in the most recent time slot is the same. This CORESET means that if the CORESET that carries the activation signaling exists, it is the CORESET that carries the activation command (DCI scrambled by the CS-RNTI); if the CORESET that carries the activation signaling does not exist, it means that it is in (with the above The smallest numbered CORESET on the activated BWP of the DCI in the same cell. In method 2, all reference signals for determining the quasi-positioning synchronization of the PDSCH antenna ports can dynamically follow the TCI state of the control channel after the Threshold-Sched-Offset and before the DCI is reactivated/deactivated. In scenarios where the beam direction often changes, there is no need to use DCI reactivation multiple times to change the beam indication, which reduces the DCI overhead.
[0091]
Method 3: The terminal device considers that the TCI status of each PDSCH activated by the DCI will be the same as the latest time slot before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by the CS-RNTI The TCI state of the smallest CORESET in the activated BWP (in the same cell as the above DCI) is the same. In method 3, the terminal device receives the PDSCH according to a default reference signal that changes dynamically with the receiving time. In scenarios where the beam direction often changes, there is no need to use DCI reactivation multiple times to change the beam indication, which reduces the DCI overhead.
[0092]
Implementation mode 3:
[0093]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled downlink transmission, and the activation signaling is a DCI scrambled by CS-RNTI. The DCI includes the TCI area, the activation signaling and the first activated by the activation signaling. If the scheduling distance between the two transmissions is greater than the preset threshold Threshold-Sched-Offset, the terminal device can receive the semi-persistent scheduled downlink transmission according to any of the following understandings:
[0094]
Understanding 1: The TCI state of the first transmission activated by the above DCI is determined by the TCI state in the TCI-state on the same BWP as the receiving first transmission indicated by the TCI area of ​​the DCI, and is activated by the above DCI Other transmissions except the first transmission are based on the same reference signal used to determine the quasi positioning synchronization of the antenna port as the first transmission;
[0095]
Understanding 2: The TCI state of each transmission activated by the above-mentioned DCI is the same as the TCI-state of the nearest time slot indicated by the TCI area of ​​the DCI and on the same BWP as the transmission received.
[0096]
Hereinafter, this embodiment will be described by taking the example that the downlink transmission of the semi-persistent scheduling is the PDSCH.
[0097]
In this embodiment, in downlink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the semi-persistent scheduled PDSCH is activated by the DCI scrambled by the CS-RNTI. At this time, the DCI includes the TCI area, or it can be understood that the DCI satisfies the following conditions, that is, the format of the DCI is 1_1 and the RRC parameter TCI-PresentInDCI of the CORESET for transmitting the DCI is set to "enabled". If the scheduling distance between the DCI and the first semi-persistent scheduled PDSCH it activates is greater than the Threshold-Sched-Offset. Then the following beam indication method can be used for the semi-persistent scheduled PDSCH activated by the DCI:
[0098]
Method 1: The TCI state of the first PDSCH activated by the DCI is determined by the TCI state in the TCI-state indicated by the TCI area of ​​the DCI (on the same BWP as the PDSCH received). Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by the CS-RNTI, the PDSCH after the DCI is activated and the first PDSCH activated by the DCI (in order to determine the antenna port The reference signal used by quasi-positioning synchronization is the same. In method 1, all reference signals for determining the quasi-positioning synchronization of the PDSCH antenna ports are the same before the DCI is reactivated, thereby reducing the system complexity.
[0099]
Method 2: Before being reactivated/deactivated by the next DCI scrambled by CS-RNTI (in the same cell as the above DCI), for each PDSCH activated by the DCI, the TCI status of the terminal equipment is The TCI-state of the most recent slot indicated by the TCI area of ​​the DCI (on the same BWP as the PDSCH received) is the same. In other words, the TCI-state has two conditions, condition 1, which is the same as the BWP for receiving the PDSCH, and condition 2, in the latest slot. In method 2, each reference signal for determining the quasi positioning synchronization of the PDSCH antenna port can dynamically follow the TCI state indicated by the TCI-state. In scenarios where the beam direction often changes, there is no need to reactivate the DCI again, which reduces the overhead of the DCI.
[0100]
Implementation 4:
[0101]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled downlink transmission, and the activation signaling is a DCI scrambled by CS-RNTI. The DCI includes the TCI area, the activation signaling and the first activated by the activation signaling. The scheduling distance between the two transmissions is less than the preset threshold Threshold-Sched-Offset, the terminal device can receive the semi-persistent scheduled downlink transmission according to any of the following understandings:
[0102]
Understanding 1: For the transmission activated by the above DCI, the TCI state of the transmission before the above preset threshold is the same as the TCI state of the lowest numbered CORESET on the activated BWP in the most recent time slot (in the same cell as the above DCI) , The TCI state of the first transmission after the above-mentioned preset threshold is determined by the TCI-state indicated by the TCI area of ​​the above-mentioned DCI and on the same BWP as the received first transmission. The other transmissions after the threshold of, except the first transmission, are based on the same reference signal used to determine the quasi positioning synchronization of the antenna port as the first transmission;
[0103]
Understanding 2: For the transmission activated by the above DCI, the TCI state of the transmission before the above preset threshold is the same as the TCI state of the lowest numbered CORESET on the activated BWP in the most recent time slot (in the same cell as the above DCI) , The TCI state of each transmission after the aforementioned preset threshold is determined by the TCI-state indicated by the TCI area of ​​the aforementioned DCI on the same BWP as the first transmission received;
[0104]
Understanding 3: The TCI state and the most recent time slot of each transmission activated by the above DCI are the same as the TCI state of the smallest CORESET in the activated BWP of the same cell of the DCI.
[0105]
Hereinafter, this embodiment will be described by taking the example that the downlink transmission of the semi-persistent scheduling is the PDSCH.
[0106]
In this embodiment, in downlink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the semi-persistent scheduled PDSCH is activated by the DCI scrambled by the CS-RNTI. At this time, the DCI includes the TCI area, or it can be understood that the DCI satisfies the following conditions, that is, the format of the DCI is 1_1 and the RRC parameter TCI-PresentInDCI of the CORESET for transmitting the DCI is set to "enabled". If the scheduling distance between the DCI and the first semi-persistent scheduled PDSCH it activates is less than the Threshold-Sched-Offset. Then the following beam indication method can be used for the semi-persistent scheduled PDSCH activated by the DCI:
[0107]
Method 1: The terminal equipment assumes that the TCI state of each PDSCH (activated by the DCI) before the Threshold-Sched-Offset and the TCI with the smallest CORESET number on the activated BWP in the most recent time slot (in the same cell as the above DCI) The status is the same. The TCI state of the first PDSCH that exceeds the Threshold-Sched-Offset activated by the DCI is determined by the TCI-state indicated by the TCI area of ​​the DCI (on the same BWP as the PDSCH received). Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by CS-RNTI, the first PDSCH that exceeds Threshold-Sched-Offset and the following PDSCH (in order to determine The reference signal used by the antenna port is the same. In method 1, all reference signals for determining the quasi-positioning synchronization of the PDSCH antenna port are the same after the Threshold-Sched-Offset and before the DCI is reactivated, thereby reducing the system complexity.
[0108]
Method 2: The terminal equipment assumes that the TCI state of each PDSCH (activated by the DCI) before the Threshold-Sched-Offset and the TCI with the smallest CORESET number on the activated BWP in the nearest time slot (in the same cell as the above DCI) The status is the same. Before being reactivated/deactivated by the next DCI scrambled by CS-RNTI (in the same cell as the above DCI), the terminal device considers that the TCI status of each PDSCH that exceeds the Threshold-Sched-Offset activated by the DCI is determined by this It is determined by the TCI-state of the nearest slot indicated by the TCI area of ​​the DCI (on the same BWP as the PDSCH received). In method 2, all reference signals for determining the quasi positioning synchronization of the PDSCH antenna port can dynamically follow the TCI state of the control channel after the Threshold-Sched-Offset and before the DCI is reactivated. In scenarios where the beam direction often changes, there is no need to use DCI reactivation multiple times to change the beam indication, which reduces the DCI overhead.
[0109]
Method 3: Before being reactivated/deactivated by the next DCI (in the same cell as the above DCI) scrambled by CS-RNTI, the terminal device thinks that the TCI status of each PDSCH activated by the DCI will be the same as the latest time slot ( The TCI state of the smallest CORESET in the activated BWP in the same cell as the above DCI is the same. In method 3, the terminal device receives the PDSCH according to a default reference signal that changes dynamically with the receiving time. In scenarios where the beam direction often changes, there is no need to use DCI reactivation multiple times to change the beam indication, which reduces the DCI overhead.
[0110]
Implementation mode 5:
[0111]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled uplink transmission, the activation signaling is RRC signaling, and the above-mentioned transmission is a type 1 uplink transmission, the terminal device can send the semi-persistent scheduling according to any of the following understandings. Continuously scheduled uplink transmission:
[0112]
Understanding 1: According to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the above RRC signaling, the spatial relationship of the first transmission activated by the RRC signaling is determined, and the other transmissions except the first transmission activated by the RRC signaling The reference signal representing the spatial relationship based on is the same as the reference signal representing the spatial relationship based on the first transmission;
[0113]
Understanding 2: Determine the spatial relationship of the first transmission activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the above RRC signaling, and the other transmissions except the first transmission activated by the RRC signaling The spatial filter used is the same as the one used in the first transmission;
[0114]
Understanding 3: The spatial relationship of each transmission activated by the above RRC signaling is determined according to the spatial relationship of the latest time slot of the SRS resource indicated by the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling.
[0115]
Hereinafter, this embodiment will be described by taking Type1 PUSCH transmission (referred to as PUSCH#1 for short) as an example for the uplink transmission of semi-persistent scheduling.
[0116]
In this embodiment, in the uplink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the RRC signaling simultaneously activates the Type 1 PUSCH transmission of the semi-persistent scheduling, that is, Type 1 PUSCH transmissions start transmission. Then the following beam indication methods can be used for this PUSCH#1:
[0117]
Method 1: The terminal device determines the spatial relationship of the first PUSCH#1 to be activated according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant. Before rrc-ConfiguredUplinkGrant is reconfigured, the reference signal representing the spatial relationship based on the transmitted (activated) PUSCH#1 and the reference signal representing the spatial relationship based on the first (activated) PUSCH#1 are transmitted The signal is the same. In method 1, the reference signal on which PUSCH#1 is sent remains unchanged until rrc-ConfiguredUplinkGrant is reconfigured, which reduces system complexity.
[0118]
Method 2: The terminal device determines the spatial relationship of the first PUSCH#1 to be activated according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant. Before rrc-ConfiguredUplinkGrant is reconfigured, the spatial filter of the first (activated) PUSCH#1 transmitted is the same as the spatial filter of the (activated) PUSCH#1 after transmission. In method 2, the spatial filter that sends PUSCH#1 remains unchanged until rrc-ConfiguredUplinkGrant is reconfigured, which reduces system complexity.
[0119]
Method 3: Before rrc-ConfiguredUplinkGrant is reconfigured, the spatial relationship of each activated PUSCH#1 will be determined based on the spatial relationship of the most recent time slot of the SRS resource indicated by the srs-ResourceIndicator. In method 3, the spatial filter of sending PUSCH#1 dynamically changes following the spatial relationship of the SRS resource indicated by the srs-ResourceIndicator, and the RRC signaling reconfiguration is not required in scenarios where the beam direction changes frequently, which reduces the overhead of the DCI.
[0120]
In a variant of this embodiment, a configuration entry (also called an information element), such as SRI-Present, can also be added to rrc-ConfiguredUplinkGrant, and the configuration entry is used to indicate whether srs-ResourceIndicator exists, for example, when the When the configuration item is set to "enable", srs-ResourceIndicator will appear in rrc-ConfiguredUplinkGrant, and the terminal device can send the Type1 PUSCH transmission of the semi-persistent scheduling according to the aforementioned understanding; when the configuration item is set to "disable", There will be no srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant, and the terminal device can send the semi-persistent scheduled uplink transmission according to any of the following understandings:
[0121]
Understanding 1: The spatial relationship of the first transmission activated by the above RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for those activated by the above RRC signaling. The reference signal representing the spatial relationship on which transmissions other than the first transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based;
[0122]
Understanding 2: The spatial relationship of the first transmission activated by the above RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for those activated by the above RRC signaling. The spatial filter used in transmissions other than the first transmission is the same as the spatial filter used in the first transmission;
[0123]
Understanding 3: The spatial relationship of each transmission activated by the above-mentioned RRC signaling is the same as the spatial relationship of the latest time slot of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission.
[0124]
That is to say, in this modified example, when the above configuration item is set to be disabled, the following beam indication method can be used for this PUSCH#1:
[0125]
Method 1: The terminal device determines the spatial relationship of the first PUSCH#1 to be activated according to the spatial direction (if it exists) of the smallest numbered PUCCH (transmitted in the same cell as PUSCH#1) in the activated BWP. If the PUCCH resource has not been configured by the dedicated RRC, the PUSCH#1 will follow the spatial direction of the PUCCH before the dedicated RRC configuration, that is, the spatial direction of the Msg 3 is the same. Before rrc-ConfiguredUplinkGrant is reconfigured, the reference signal representing the spatial relationship based on the transmitted (activated) PUSCH#1 and the reference signal representing the spatial relationship based on the first (activated) PUSCH#1 are transmitted The signal is the same. In method 1, the spatial relationship of Type 1 PUSCH transmission can be the same as that of PUCCH, and the reference signal representing the spatial direction on which the PUSCH is transmitted remains unchanged until the rrc-ConfiguredUplinkGrant is reconfigured, which reduces the system complexity.
[0126]
Method 2: The terminal device determines the spatial relationship of the first PUSCH#1 activated according to the spatial direction (if any) of the PUCCH with the smallest number in the activated BWP (transmitted in the same cell as PUSCH#1). If the PUCCH resource has not been configured by the dedicated RRC, the PUSCH#1 will follow the spatial direction of the PUCCH before the dedicated RRC configuration, that is, the spatial direction of the Msg 3 is the same. Before rrc-ConfiguredUplinkGrant is reconfigured, the subsequent activated PUSCH#1 spatial filter will be the same as the first activated PUSCH#1 spatial filter. In method 2, the spatial relationship of Type 1 PUSCH transmission can be the same as that of PUCCH, and the spatial filter used for PUSCH transmission is always the same until the rrc-ConfiguredUplinkGrant is reconfigured, which reduces the system complexity.
[0127]
Method 3: Before rrc-ConfiguredUplinkGrant is reconfigured, the spatial relationship of each activated PUSCH will be based on the spatial relationship of the latest time slot of the smallest numbered PUCCH in the activated BWP (transmitted in the same cell as PUSCH#1) ( If it exists). If the PUCCH resource has not been configured by a dedicated RRC, the spatial filter for transmitting the PUSCH#1 will be the same as the spatial filter for Msg 3. In method 3, the spatial relationship of Type 1 PUSCH transmission can be configured to be the same as that of PUCCH, so that in scenarios where the beam direction often changes, there is no need to use RRC reconfiguration multiple times, reducing signaling overhead.
[0128]
In another variation of this embodiment, a field in srs-ResourceIndicator can also be used to indicate whether SRI exists. When it is determined that SRI does not exist according to the value of the above-mentioned field, the terminal device can follow any of the previous variants. A kind of understanding to send the uplink transmission of the semi-persistent scheduling. For example, if a codepoint in the srs-ResourceIndicator, such as "1111", is equivalent to the SRI does not exist, when the srs-ResourceIndicator is set to "1111", the beam indicator method in the previous variant can be used for the PUSCH#1.
[0129]
Embodiment 6:
[0130]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled uplink transmission, and the above-mentioned transmission is a type 2 uplink transmission, and the activation signaling is the DCI format 0_0 scrambled by the CS-RNTI, then the terminal device can follow the following Any kind of understanding to send the uplink transmission of the semi-persistent scheduling:
[0131]
Understanding 1: The spatial relationship of the first transmission activated by the above DCI is determined according to the spatial direction of the smallest numbered uplink control channel in the activated BWP belonging to the same cell as the DCI, except for the first transmission activated by the above DCI The reference signal representing the spatial relationship on which other transmissions are based is the same as the reference signal representing the spatial relationship on which the first transmission is based;
[0132]
Understanding 2: The spatial relationship of the first transmission activated by the above DCI is determined according to the spatial direction of the smallest numbered uplink control channel in the activated BWP belonging to the same cell as the DCI, except for the first transmission activated by the above DCI The spatial filter used in other transmissions is the same as that used in the first transmission;
[0133]
Understanding 3: The spatial relationship of each transmission activated by the above-mentioned DCI is the same as the spatial relationship of the nearest time slot of the uplink control channel with the smallest number in the BWP belonging to the same cell as the DCI.
[0134]
Hereinafter, this embodiment will be described by taking Type 2 PUSCH transmission (referred to as PUSCH#2 for short) as an example for the uplink transmission of semi-persistent scheduling.
[0135]
In this embodiment, in the uplink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the Type 2 PUSCH transmissions are activated by the DCI format 0_0 scrambled by the CS-RNTI. Then the following beam indication methods can be used for this PUSCH#2:
[0136]
Method 1: The terminal device determines the spatial relationship of the first PUSCH#2 to be activated according to the spatial direction (if any) of the PUCCH with the smallest number in the activated BWP (the same cell as the above-mentioned DCI). If the PUCCH resource has not been configured by the dedicated RRC, the PUSCH#2 will follow the spatial direction of the PUCCH before the dedicated RRC configuration, that is, the spatial direction of the Msg 3 is the same. Before the DCI format 0_0 scrambled by the CS-RNTI (in the same cell as the above DCI) is reactivated, the reference signal representing the spatial relationship based on the subsequent (activated) PUSCH#2 is transmitted and the first (by The reference signal representing the spatial relationship on which the activated PUSCH#2 is based is the same. In method 1, the reference signal on which PUSCH#2 is sent remains unchanged before the DCI is reactivated, which reduces the system complexity.
[0137]
Method 2: The terminal device determines the spatial relationship of the first PUSCH#2 to be activated according to the spatial direction (if any) of the PUCCH with the smallest number in the activated BWP (the same cell as the above DCI). If the PUCCH resource has not been configured by the dedicated RRC, the PUSCH#2 will follow the spatial direction of the PUCCH before the dedicated RRC configuration, that is, the spatial direction of the Msg 3 is the same. Before the DCI format 0_0 scrambled by CS-RNTI (in the same cell as the above DCI) is reactivated, the spatial filter of the first (activated) PUSCH#2 and the spatial filter of PUSCH#2 after it are sent The device is the same. In method 2, the spatial filter for transmitting PUSCH#2 remains unchanged until the DCI is reactivated, which reduces the system complexity.
[0138]
Method 3: Before being reactivated by DCI format 0_0 scrambled by CS-RNTI (in the same cell as the above DCI), the spatial relationship of each activated PUSCH#2 will be based on the smallest numbered PUCCH in the activated BWP (with the above The spatial relationship (if any) of the nearest time slot (DCI and cell) is determined. If the PUCCH resource has not been configured by a dedicated RRC, the spatial filter for transmitting the PUSCH#2 will be the same as the spatial filter for Msg 3. In method 3, the spatial relationship of PUSCH#2 is the same as that of PUCCH, so that dynamic beam switching can be completed in scenarios where the beam direction often changes, without using RRC reconfiguration multiple times, and reducing signaling overhead.
[0139]
Embodiment 7:
[0140]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled uplink transmission, and the above-mentioned transmission is a type 2 uplink transmission, and the activation signaling is the DCI format 0_1 ​​scrambled by the CS-RNTI, then the terminal device can be based on the following Any kind of understanding to send the uplink transmission of the semi-persistent scheduling:
[0141]
Understanding 1: The first transmission activated by the above DCI is sent according to the spatial relationship indicated by the DCI's carrier indication area and the SRI area, and the other transmissions except the first transmission activated by the above DCI indicate the spatial relationship based on The reference signal is the same as the reference signal representing the spatial relationship on which the first transmission is based;
[0142]
Understanding 2: The first transmission activated by the above-mentioned DCI is sent according to the spatial relationship indicated by the carrier indication area and the SRI area of ​​the DCI, and the spatial filters used by transmissions other than the first transmission activated by the above-mentioned DCI and The same spatial filter used in the first transmission;
[0143]
Understanding 3: The spatial relationship of each transmission activated by the above DCI is the same as the spatial relationship indicated by the DCI of the most recent time slot.
[0144]
Hereinafter, this embodiment will be described by taking Type 2 PUSCH transmission (referred to as PUSCH#2 for short) as an example for the uplink transmission of semi-persistent scheduling.
[0145]
In this embodiment, in the uplink transmission, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the Type 2 PUSCH transmissions are activated by the DCI format 0_1 ​​scrambled by the CS-RNTI. Then the following beam indication methods can be used for this PUSCH#2:
[0146]
Method 1: The terminal device transmits the first PUSCH#2 after activation according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area. Before the DCI format0_1 scrambled by CS-RNTI (in the same cell as the above DCI) is reactivated/deactivated, the reference signal representing the spatial relationship based on the subsequent (activated) PUSCH#2 is transmitted and the first one is transmitted (Activated) PUSCH#2 is based on the same reference signal representing the spatial relationship. In method 1, the reference signal representing the spatial relationship on which PUSCH#2 is sent remains unchanged until the DCI is reactivated, which reduces the system complexity.
[0147]
Method 2: The terminal device transmits the first PUSCH#2 after activation according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area. Before reactivation/deactivation of DCI format0_1 scrambled by CS-RNTI (in the same cell as the above DCI), the spatial filter of the first (activated) PUSCH#2 and the PUSCH#2 after it are transmitted The spatial filter is the same. In method 2, the spatial filter used to transmit the PUSCH remains unchanged until the DCI is reactivated, which reduces the system complexity.
[0148]
Method 3: Before the DCI format 0_1 ​​scrambled by the CS-RNTI of the same cell is reactivated/deactivated, the spatial relationship of each activated PUSCH#2 will be transmitted according to the needs indicated by the DCI in the most recent time slot The spatial relationship of SRS resources is determined. In method 3, the spatial relationship of PUSCH#2 can be dynamically associated with the spatial relationship of SRS resources indicated by DCI, so that dynamic beam switching can be completed in scenarios where the beam direction often changes, without multiple DCI reactivation, which reduces Signaling overhead.
[0149]
Embodiment 8:
[0150]
In this embodiment, the above at least one transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on the uplink data channel (PUSCH), and the activation signaling is DCI format 0_1 ​​scrambled by SP-CSI-RNTI, Then the terminal device can send the semi-persistent scheduled uplink transmission according to any one of the following understandings:
[0151]
Understanding 1: The first transmission activated by the above DCI is sent according to the spatial relationship indicated by the DCI's carrier indication area and the SRI area, and the other transmissions except the first transmission activated by the above DCI indicate the spatial relationship based on The reference signal is the same as the reference signal representing the spatial relationship on which the first transmission is based;
[0152]
Understanding 2: The first transmission activated by the above-mentioned DCI is sent according to the spatial relationship indicated by the carrier indication area and the SRI area of ​​the DCI, and the spatial filters used by transmissions other than the first transmission activated by the above-mentioned DCI and The same spatial filter used in the first transmission;
[0153]
Understanding 3: The spatial relationship of each transmission activated by the above DCI is the same as the spatial relationship indicated by the DCI in the most recent time slot.
[0154]
Hereinafter, this embodiment will be described by taking the example that the semi-persistent scheduled uplink transmission is PUSCH-based semi-persistent CSI reporting.
[0155]
In this embodiment, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), the PUSCH-based semi-persistent CSI reporting is activated by the DCI format 0_1 ​​scrambled by SP-CSI-RNTI. Then the following beam indication method can be used for the PUSCH of the semi-persistent CSI report carried by the DCI:
[0156]
Method 1: The terminal device transmits the first PUSCH after activation according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area. Before the DCI format0_1 scrambled by the CS-RNTI (in the same cell as the above DCI) is reactivated, the reference signal representing the spatial relationship on which the PUSCH after the transmission (activated) is based and the first (activated) reference signal is transmitted The reference signal representing the spatial relationship on which the PUSCH is based is the same. In method 1, the reference signal representing the spatial relationship on which the PUSCH is transmitted remains unchanged until the DCI is reactivated, which reduces the system complexity.
[0157]
Method 2: The terminal device transmits the first PUSCH after activation according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area. Before the DCI format0_1 scrambled by CS-RNTI (in the same cell as the above DCI) is reactivated, the spatial filter used for transmitting the first (activated) PUSCH and the spatial filter used for the PUSCH after transmitting it the same. In method 2, the spatial filter used to transmit the PUSCH remains unchanged until the DCI is reactivated, which reduces the system complexity.
[0158]
Method 3: Before the DCI format 0_1 ​​scrambled by the CS-RNTI of the same cell is reactivated, the spatial relationship of each activated PUSCH will be determined based on the spatial relationship indicated by the DCI in the most recent time slot. In method 3, the spatial relationship of the PUSCH is dynamically associated with the spatial relationship indicated by the DCI, so that dynamic beam switching can be completed in a scene where the beam direction often changes, without multiple DCI reactivations, and reducing signaling overhead.
[0159]
Embodiment 9:
[0160]
In this embodiment, the above-mentioned at least one transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on the uplink control channel (PUCCH), and the activation signaling is MAC-CE, then the terminal device can follow any of the following Understand sending the uplink transmission of this semi-persistent scheduling:
[0161]
Understanding 1: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the reference signal representing the spatial relationship based on other transmissions except the first transmission activated by the above-mentioned MAC-CE Same as the reference signal representing the spatial relationship on which the first transmission is based;
[0162]
Understanding 2: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the spatial filter used by the transmissions other than the first transmission activated by the above-mentioned MAC-CE and the first The same spatial filter used for each transmission;
[0163]
Understanding 3: The spatial relationship of each transmission activated by the above-mentioned MAC-CE is the same as the spatial relationship of the applied associated control channel in the most recent time slot.
[0164]
Hereinafter, this embodiment will be described by taking as an example that the semi-persistent scheduled uplink transmission is PUCCH-based semi-persistent CSI reporting.
[0165]
In this embodiment, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), PUCCH-based semi-persistent CSI reporting is activated by MAC-CE signaling. Then the following beam indication method can be used for the PUCCH that is activated by the MAC-CE signaling to carry the semi-persistent CSI report:
[0166]
Method 1: The terminal device sends the activated first PUCCH according to the spatial relationship configured by the RRC. Before being reactivated by the MAC-CE signaling, the reference signal representing the spatial relationship on which the first PUCCH is transmitted is the same as the reference signal representing the spatial relationship on which the PUCCH after the transmission is based. In method 1, the reference signal representing the spatial relationship on which the PUCCH is transmitted remains unchanged until the MAC-CE is reactivated, which reduces the system complexity.
[0167]
Method 2: The terminal device sends the first PUCCH according to the spatial relationship configured by the RRC. Before being reactivated by MAC-CE signaling, the spatial filter for transmitting the first PUCCH is the same as the spatial filter for the PUCCH after the transmission. In method 2, the spatial filter for transmitting the PUCCH remains unchanged until the MAC-CE is reactivated, which reduces the system complexity.
[0168]
Method 3: Before the MAC-CE signaling is reactivated, the spatial relationship of each activated PUCCH will be determined according to the activated spatial relationship of the most recent time slot. If the spatial relationship is not activated, the spatial relationship may be determined according to a preset method, for example, based on the first entry of the configured spatial relationship table. In method 3, the spatial relationship of the activated PUCCH will be dynamically changed according to MAC-CE signaling or a default indication (according to the first entry of the configured spatial relationship), so that it can be used in scenarios where the beam direction often changes Complete dynamic beam switching without multiple MAC-CE reactivation, reducing signaling overhead.
[0169]
Embodiment 10:
[0170]
In this embodiment, the above at least one transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on the uplink control channel (PUCCH), the activation signaling is MAC-CE, and the terminal device switches from the first BWP to another BWP, and switch back to the first BWP, the terminal device can send the semi-persistent scheduled uplink transmission according to any of the following understandings:
[0171]
Understanding 1: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the reference signal representing the spatial relationship based on other transmissions except the first transmission activated by the above-mentioned MAC-CE Same as the reference signal representing the spatial relationship on which the first transmission is based;
[0172]
Understanding 2: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the spatial filter used by the transmissions other than the first transmission activated by the above-mentioned MAC-CE and the first The same spatial filter used for each transmission;
[0173]
Understanding 3: The spatial relationship of each transmission activated by the above-mentioned MAC-CE is the same as the spatial relationship of the applied associated control channel in the most recent time slot;
[0174]
Understanding 4: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the last transmission of the above-mentioned transmission on the above-mentioned first BWP, and other transmissions except the first transmission activated by the above-mentioned MAC-CE are based on The reference signal representing the spatial relationship is the same as the reference signal representing the spatial relationship on which the first transmission is based;
[0175]
Understanding 5: The first transmission activated by the above-mentioned MAC-CE is sent according to the spatial relationship of the last transmission of the above-mentioned transmission on the above-mentioned first BWP, and is used by other transmissions except the first transmission activated by the above-mentioned MAC-CE The spatial filter is the same as the one used in the first transmission.
[0176]
Hereinafter, this embodiment will be described by taking as an example that the semi-persistent scheduled uplink transmission is PUCCH-based semi-persistent CSI reporting.
[0177]
In this embodiment, after the network device completes the configuration of the semi-persistent scheduling parameters through high-level signaling (such as RRC signaling), PUCCH-based semi-persistent CSI reporting is activated by MAC-CE signaling. The terminal device switches from the original BWP (referred to as the first BWP) to other BWPs. At this time, the transmission of the previously activated semi-persistent PUCCH (that is, the PUCCH carrying the semi-persistent CSI report) is suspended. When the terminal device switches back to the original BWP from another BWP, the semi-persistent PUCCH transmission will resume. Then the following beam indication method can be used for the PUCCH that is activated by the MAC-CE signaling and is restored after the terminal device switches back to the original BWP, and carries the semi-persistent CSI report:
[0178]
Method 1: The terminal device sends the first PUCCH after activation according to the spatial relationship configured by the RRC. Before being reactivated by MAC-CE signaling, the reference signal representing the spatial relationship on which the first (activated) PUCCH is transmitted is the same as the reference signal representing the spatial relationship on the basis of the (activated) PUCCH after the transmission. . In method 1, the reference signal representing the spatial relationship on which the PUCCH is transmitted remains unchanged until the MAC-CE is reactivated, which reduces the system complexity.
[0179]
Method 2: The terminal device transmits the first PUCCH after activation according to the spatial relationship configured by the RRC. Before being reactivated by MAC-CE signaling, the spatial filter of the first (activated) PUCCH is the same as the spatial filter of the (activated) PUCCH after the transmission. In method 2, the spatial filter for transmitting the PUCCH remains unchanged until the MAC-CE is reactivated, which reduces the system complexity.
[0180]
Method 3: Before the MAC-CE signaling is reactivated, the spatial relationship of each activated PUCCH will be determined according to the activated spatial relationship of the most recent time slot. If the spatial relationship is not activated, it is determined according to a preset behavior, such as the first entry in the configured spatial relationship table. In method 3, the reference signal representing the spatial relationship on which the PUCCH is sent will be dynamically changed according to MAC-CE signaling or a default indication (according to the first entry in the configured spatial relationship table), so as to be able to move in the beam direction Dynamic beam switching is completed in frequently changing scenarios without multiple MAC-CE reactivation, which reduces signaling overhead.
[0181]
Method 4: The terminal device transmits the first PUCCH according to the reference signal representing the spatial relationship on which the semi-persistent PUCCH was last transmitted on the original BWP (before the suspension). Before being reactivated by the MAC-CE signaling, the reference signal representing the spatial relationship on which the first PUCCH is transmitted is the same as the reference signal representing the spatial relationship on which the PUCCH after the transmission is based. In method 4, after the terminal device switches back to the original BWP, the reference signal representing the spatial relationship on which the PUCCH is sent is the same as before the switch. The consistency of the transmission direction of PUCCH during the BWP handover process is guaranteed.
[0182]
Method 5: The terminal device transmits the first PUCCH after activation according to the reference signal representing the spatial relationship on which the semi-persistent PUCCH was last transmitted on the original BWP (before the suspension). Before being reactivated by MAC-CE signaling, the spatial filter for transmitting the first PUCCH is the same as the spatial filter for the PUCCH after the transmission. In method 5, after the terminal device switches back to the original BWP, the spatial filter used to transmit the PUCCH is the same as before the switch. The consistency of the PUCCH transmission direction during the BWP handover is guaranteed.
[0183]
Implementation mode 11:
[0184]
In this embodiment, the above at least one transmission is periodic CSI reporting based on uplink transmission, and the activation signaling is RRC signaling, and the terminal device can send the uplink transmission according to any of the following understandings:
[0185]
Understanding 1: The first transmission activated by the above RRC signaling is sent according to the spatial relationship of the control channel configured by RRC, and the reference signal indicating the spatial relationship on which other transmissions except the first transmission activated by the above RRC signaling are based Same as the reference signal representing the spatial relationship on which the first transmission is based;
[0186]
Understanding 2: The first transmission activated by the above RRC signaling is sent according to the spatial relationship of the control channel configured by the RRC, and the spatial filter used by the transmissions other than the first transmission activated by the above RRC signaling and the first transmission The same spatial filter used for each transmission;
[0187]
Understanding 3: The spatial relationship of each transmission activated by the above-mentioned RRC signaling is the same as the applied spatial relationship of the latest time slot of the associated control channel.
[0188]
Hereinafter, this embodiment will be described by taking the periodic CSI report based on uplink transmission as the periodic CSI report based on PUCCH as an example.
[0189]
In this embodiment, after the network device completes the configuration of scheduling parameters through high-level signaling (such as RRC signaling), the RRC signaling activates PUCCH-based periodic CSI reporting, that is, for PUCCH-based periodic CSI reporting The report begins. Then the following beam indication methods can be used for this PUCCH:
[0190]
Method 1: The terminal device sends the first PUCCH after activation according to the spatial relationship configured by the RRC. Before being reconfigured by the corresponding RRC signaling, the reference signal representing the spatial relationship on which the first (activated) PUCCH is transmitted is the same as the reference signal representing the spatial relationship on the basis of the (activated) PUCCH after the transmission. . In method 1, the reference signal representing the spatial relationship on which the PUCCH is transmitted remains unchanged before the corresponding RRC signaling reconfiguration, which reduces the system complexity.
[0191]
Method 2: The terminal device transmits the first PUCCH after activation according to the spatial relationship configured by the RRC. Before being reconfigured by the corresponding RRC signaling, the spatial filter of the first (activated) PUCCH is the same as the spatial filter of the (activated) PUCCH after the transmission. In method 2, the spatial filter for transmitting the PUCCH is always unchanged before the corresponding RRC signaling reconfiguration, which reduces the system complexity.
[0192]
Method 3: Before corresponding RRC signaling reconfiguration, the spatial relationship of each activated PUCCH is determined according to the applied spatial relationship of the most recent time slot of the associated control channel. If the spatial relationship is not activated, it is determined according to a preset behavior, such as the first entry in the configured spatial relationship table. In method 3, the reference signal representing the spatial relationship on which the PUCCH is sent will dynamically change according to MAC-CE signaling or the default indication (according to the first entry of the configured spatial relationship), which can often occur in the beam direction The dynamic beam switching is completed in the changing scene, and there is no need to use the corresponding RRC signaling reconfiguration multiple times, and the signaling overhead is reduced.
[0193]
In the above embodiments 1-11, the beam indication method is described only from the perspective of the terminal device, however, the terminal device and the network device have the same understanding of the beam indication.
[0194]
The beam indication method of this embodiment is described above in conjunction with specific implementations (scenarios). This embodiment is not limited to this. The beam indication method of this embodiment can also be applied to other scenarios. For example, the activation signaling is In addition to other signaling other than DCI, MAC-CE, and RRC, for another example, the activated transmission is transmission other than semi-persistent scheduled downlink transmission, semi-persistent scheduled uplink transmission, and CSI based on uplink transmission. Moreover, the above scenarios can also be combined in various ways according to specific implementation conditions.
[0195]
With the method of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, between activation signaling and deactivation signaling or the next activation signaling, the terminal device can use the same spatial filter or transmission assumption, or The respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are used to transmit or receive, which solves the problem of ambiguity in the beam indication in the above interval.
[0196]
Example 2
[0197]
This embodiment provides a beam indication method, which is applied to a network device, and is a processing on the network side corresponding to the method in Embodiment 1. The same content as in Embodiment 1 will not be repeated. FIG. 4 is a schematic diagram of the beam indication method of this embodiment. As shown in FIG. 4, the method includes:
[0198]
Step 401: The network device sends activation signaling to a terminal device, and the activation signaling activates at least one transmission of the terminal device so that the terminal device can send or receive the at least one transmission according to the following understanding: Before deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission assumption, or use the respective spatial filtering determined by dynamically interpreting the activation signaling Or transmission hypothesis.
[0199]
In this embodiment, the above activation signaling is, for example, CS-RNTI scrambled DCI, or SP-CSI-RNTI scrambled DCI, or MAC-CE, or RRC signaling. In Embodiment 1, the activation signaling has been described in detail, and its content is incorporated here, and will not be repeated here.
[0200]
In this embodiment, the above-mentioned transmission is, for example, a semi-persistent scheduled downlink transmission (corresponding to Embodiments 1-4 of Embodiment 1), or a semi-persistent scheduled uplink transmission (corresponding to Embodiments 5-10 of Embodiment 1), or Periodic channel state information (CSI) reporting based on uplink transmission (corresponding to implementation 11 of embodiment 1). In Embodiment 1, the beam indication methods in different scenarios have been described in detail, and the content is merged here, and will not be repeated here.
[0201]
In this embodiment, as shown in FIG. 4, the method may further include:
[0202]
Step 400: The network device configures semi-persistent scheduling parameters or periodic scheduling parameters for the terminal device through RRC signaling.
[0203]
This embodiment does not limit the specific configuration method. Therefore, the terminal device can send or receive the corresponding transmission according to the method of embodiment 1 after the network device completes the configuration of the above-mentioned parameters through the above-mentioned RRC signaling. The details have been explained in embodiment 1 and are omitted here. Description.
[0204]
In this embodiment, the foregoing RRC signaling may include an rrc-ConfiguredUplinkGrant information element, and the rrc-ConfiguredUplinkGrant information element may include an information element for indicating whether the srs-ResourceIndicator exists. Therefore, corresponding to the first modification of Embodiment 5 of Embodiment 1, the terminal device can determine the beam indication accordingly.
[0205]
In this embodiment, the foregoing RRC signaling may further include an srs-ResourceIndicator information element, and the srs-ResourceIndicator information element may include a field for indicating whether the SRI exists. Therefore, corresponding to the second modification of Embodiment 5 of Embodiment 1, the terminal device can determine the beam indication accordingly.
[0206]
With the method of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, between activation signaling and deactivation signaling or the next activation signaling, the terminal device can use the same spatial filter or transmission assumption, or The respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are used to transmit or receive, which solves the problem of ambiguity in the beam indication in the above interval.
[0207]
Example 3
[0208]
This embodiment provides a beam indicating device, which is configured in a terminal device. Since the principle of the device to solve the problem is similar to the method of embodiment 1, its specific implementation can refer to the implementation of the method of embodiment 1, and the same content will not be repeated.
[0209]
FIG. 5 is a schematic diagram of the beam indicating device of this embodiment. Please refer to FIG. 5. The beam indicating device 500 includes a receiving unit 501 and a transmitting unit 502.
[0210]
The receiving unit 501 receives activation signaling, which activates at least one transmission; the transmission unit 502 transmits or receives the at least one transmission according to the following understanding: after receiving the deactivation signaling or the next activation signal Before the command, all transmissions activated by the activation signaling use the same spatial filter or transmission hypothesis, or use respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling.
[0211]
In this embodiment, the activation signaling may be CS-RNTI scrambled DCI, or SP-CSI-RNTI scrambled DCI, or MAC-CE, or RRC signaling. The details are as described in Embodiment 1, and will not be repeated here.
[0212]
In this embodiment, the transmission may be a semi-persistent scheduled downlink transmission, or a semi-persistent scheduled uplink transmission, or periodic channel state information (CSI) reporting based on uplink transmission. The details are as described in Embodiment 1, and will not be repeated here.
[0213]
In this embodiment, using the same spatial filter or transmission hypothesis refers to any of the following:
[0214]
All transmissions activated by the activation signaling are based on the same spatial filter or reference signal;
[0215]
In the case that the scheduling distance between the activation signaling and the first transmission activated by the activation signaling is greater than the preset threshold, the first transmission among all transmissions activated by the activation signaling is based on the activation For the spatial filter or reference signal indicated by the signaling, all transmissions except the first transmission are based on the same spatial filter or reference signal as the first transmission; and
[0216]
In the case that the scheduling distance between the activation signaling and the first transmission activated by the activation signaling is less than the preset threshold, the first transmission after the preset threshold is based on the activation signaling For the indicated spatial filter or reference signal, all transmissions after the preset threshold except for the first transmission are based on the same spatial filter or reference signal as the first transmission.
[0217]
In this embodiment, using the respective spatial filters or transmission assumptions determined by dynamically interpreting the activation signaling means that each transmission activated by the activation signaling is at a predetermined time according to the activation signaling. A spatial filter or reference signal determined by the interpretation.
[0218]
In one embodiment, the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is DCI scrambled by CS-RNTI, the DCI does not include the TCI area, and the activation signaling and the activation signaling are activated If the scheduling distance between the first transmissions is greater than a preset threshold, the transmission unit 502 receives the semi-persistent scheduled downlink transmission according to the following understanding:
[0219]
The TCI state of the first transmission activated by the DCI is the same as the TCI state applied by the resource control set (CORESET) that carries the DCI, and the transmission basis other than the first transmission activated by the DCI is The same reference signal used for determining the quasi positioning synchronization of the antenna port as the first transmission; or
[0220]
The TCI state of each transmission activated by the DCI is the same as the TCI state applied by a CORESET in the most recent time slot. If the CORESET carrying the DCI exists, the one CORESET refers to the CORESET carrying the DCI; If the CORESET carrying the DCI does not exist, the one CORESET refers to the CORESET with the smallest number on the activated carrier bandwidth (BWP) of the same cell as the DCI.
[0221]
In another embodiment, the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is a DCI scrambled by CS-RNTI, the DCI does not include a TCI area, and the activation signaling and the activation signaling The scheduling distance between the activated first transmissions is less than the preset threshold, and the transmission unit 502 receives the semi-persistent scheduled downlink transmission according to the following understanding:
[0222]
For transmissions activated by the DCI, the TCI state of the transmission before the preset threshold is the same as the TCI state of the smallest CORESET on the activated BWP of the most recent time slot, after the preset threshold The TCI state of the first transmission is the same as the TCI state of the CORESET carrying the DCI, and the basis for other transmissions after the preset threshold is the same as that of the first transmission. The reference signal used to determine the quasi-positioning synchronization of the antenna port; or
[0223]
For transmissions activated by the DCI, the TCI state of the transmission before the preset threshold is the same as the TCI state of the smallest CORESET on the activated BWP of the most recent time slot, after the preset threshold The TCI state of the transmission is the same as the TCI state of a CORESET in the most recent time slot. The one CORESET refers to the CORESET carrying the DCI; or, if the CORESET does not exist, the one CORESET refers to the The CORESET with the smallest number on the activated BWP of the DCI in the same cell; or
[0224]
The TCI state and the most recent time slot of each transmission activated by the DCI are the same as the TCI state of the smallest CORESET in the activated BWP of the same cell of the DCI.
[0225]
In another embodiment, the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is a DCI scrambled by a CS-RNTI, the DCI includes a TCI area, and the activation signaling and the activation signaling are activated If the scheduling distance between the first transmissions is greater than a preset threshold, the transmission unit 502 receives the semi-persistent scheduled downlink transmission according to the following understanding:
[0226]
The TCI state of the first transmission activated by the DCI is determined by the TCI state in the TCI-state indicated by the TCI area of ​​the DCI on the same BWP as the first transmission received, and is determined by the Transmissions other than the first transmission activated by DCI are based on the same reference signal used to determine the quasi-positioning synchronization of the antenna port as the first transmission; or
[0227]
The TCI state of each transmission activated by the DCI is the same as the TCI-state of the most recent time slot on the same BWP as the reception of the transmission indicated by the TCI area of ​​the DCI.
[0228]
In another embodiment, the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is a DCI scrambled by a CS-RNTI, the DCI includes a TCI area, and the activation signaling and the activation signaling are activated If the scheduling distance between the first transmissions is less than a preset threshold, the transmission unit 502 receives the semi-persistent scheduled downlink transmission according to the following understanding:
[0229]
For the transmission activated by the DCI, the TCI state of the transmission before the preset threshold is the same as the TCI state of the lowest-numbered CORESET on the activated BWP of the most recent time slot. The TCI state of the first transmission after that is determined by the TCI-state indicated by the TCI area of ​​the DCI and on the same BWP as the first transmission. After the preset threshold Transmissions other than the first transmission are based on the same reference signal used to determine the quasi positioning synchronization of the antenna port as the first transmission; or
[0230]
For the transmission activated by the DCI, the TCI state of the transmission before the preset threshold is the same as the TCI state of the lowest-numbered CORESET on the activated BWP of the most recent time slot. The TCI state of each subsequent transmission is determined by the TCI-state of the most recent slot on the same BWP as the first transmission, indicated by the TCI area of ​​the DCI; or
[0231]
The TCI state and the most recent time slot of each transmission activated by the DCI are the same as the TCI state of the smallest CORESET in the activated BWP of the same cell of the DCI.
[0232]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, the activation signaling is RRC signaling, and the transmission is a type 1 uplink transmission, then the transmission unit 502 transmits according to the following understanding The semi-persistent scheduled uplink transmission:
[0233]
Determine the spatial relationship of the first transmission activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling, and other than the first transmission activated by the RRC signaling The reference signal representing the spatial relationship on which the transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0234]
Determine the spatial relationship of the first transmission activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling, and other than the first transmission activated by the RRC signaling The spatial filter used in the transmission is the same as the spatial filter used in the first transmission; or
[0235]
The spatial relationship of each transmission activated by the RRC signaling is determined according to the spatial relationship of the latest time slot of the SRS resource indicated by the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling.
[0236]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 1 uplink transmission, the activation signaling is RRC signaling, and the rrc-ConfiguredUplinkGrant of the RRC signaling There are information elements used to indicate whether srs-ResourceIndicator exists,
[0237]
When the cell is set to enable, the transmission unit 502 sends the semi-persistent scheduled uplink transmission according to the following understanding:
[0238]
Determine the spatial relationship of the first transmission activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling, and other than the first transmission activated by the RRC signaling The reference signal representing the spatial relationship on which the transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0239]
Determine the spatial relationship of the first transmission activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling, and other than the first transmission activated by the RRC signaling The spatial filter used in the transmission is the same as the spatial filter used in the first transmission; or
[0240]
The spatial relationship of each transmission activated by the RRC signaling is determined according to the spatial relationship of the nearest time slot of the SRS resource indicated by the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling;
[0241]
When the cell is set to be disabled, the transmission unit 502 sends the semi-persistent scheduled uplink transmission according to the following understanding:
[0242]
The spatial relationship of the first transmission activated by the RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for the one activated by the RRC signaling. The reference signal representing the spatial relationship on which transmissions other than the first transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0243]
The spatial relationship of the first transmission activated by the RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for the one activated by the RRC signaling. The spatial filter used in transmissions other than the first transmission is the same as the spatial filter used in the first transmission; or
[0244]
The spatial relationship of each transmission activated by the RRC signaling is the same as the spatial relationship of the closest time slot of the uplink control channel with the smallest number among the activated BWPs belonging to the same cell as the uplink transmission.
[0245]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 1 uplink transmission, the activation signaling is RRC signaling, and the srs-ResourceIndicator of the RRC signaling Contains a field for indicating that SRI does not exist, the transmission unit 502 sends the semi-persistent scheduled uplink transmission according to the following understanding:
[0246]
The spatial relationship of the first transmission activated by the RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for the one activated by the RRC signaling. The reference signal representing the spatial relationship on which transmissions other than the first transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0247]
The spatial relationship of the first transmission activated by the RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for the one activated by the RRC signaling. The spatial filter used in transmissions other than the first transmission is the same as the spatial filter used in the first transmission; or
[0248]
The spatial relationship of each transmission activated by the RRC signaling is the same as the spatial relationship of the closest time slot of the uplink control channel with the smallest number among the activated BWPs belonging to the same cell as the uplink transmission.
[0249]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 2 uplink transmission, and the activation signaling is a DCI format 0_0 scrambled by CS-RNTI, then the The transmission unit 502 transmits the semi-persistent scheduled uplink transmission according to the following understanding:
[0250]
The spatial relationship of the first transmission activated by the DCI is determined according to the spatial direction of the smallest numbered uplink control channel in the activated BWP belonging to the same cell as the DCI, and the first one activated by the DCI is excluded. The reference signal representing the spatial relationship on which other transmissions other than the transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0251]
The spatial relationship of the first transmission activated by the DCI is determined according to the spatial direction of the smallest numbered uplink control channel in the activated BWP belonging to the same cell as the DCI, and the first one activated by the DCI is excluded. The spatial filter used in transmissions other than the transmission is the same as the spatial filter used in the first transmission; or
[0252]
The spatial relationship of each transmission activated by the DCI is the same as the spatial relationship of the nearest time slot of the uplink control channel with the smallest number in the BWP belonging to the same cell as the DCI.
[0253]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 2 uplink transmission, and the activation signaling is DCI format 0_1 ​​scrambled by CS-RNTI, then the The transmission unit 502 transmits the semi-persistent scheduled uplink transmission according to the following understanding:
[0254]
The first transmission activated by the DCI is sent according to the spatial relationship indicated by the carrier indication area and the SRI area of ​​the DCI, and the other transmissions except the first transmission activated by the DCI are based on which represents the spatial relationship The reference signal is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0255]
The first transmission activated by the DCI is sent according to the spatial relationship indicated by the carrier indication area and the SRI area of ​​the DCI, and the spatial filtering used by other transmissions activated by the DCI except the first transmission The filter is the same as the spatial filter used in the first transmission; or
[0256]
The spatial relationship of each transmission activated by the DCI is the same as the spatial relationship indicated by the DCI of the most recent time slot.
[0257]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission and is a semi-persistent CSI report based on an uplink data channel, and the activation signaling is DCI format 0_1 ​​scrambled by SP-CSI-RNTI, so The transmission unit 502 sends the semi-persistent scheduled uplink transmission according to the following understanding:
[0258]
The first transmission activated by the DCI is sent according to the spatial relationship indicated by the DCI carrier indication area and the SRI area, and the representation space on which transmissions other than the first transmission activated by the DCI are based The reference signal of the relationship is the same as the reference signal representing the spatial relationship on which the first transmission is based; or,
[0259]
The first transmission activated by the DCI is sent according to the spatial relationship indicated by the carrier indication area and the SRI area of ​​the DCI, and the spatial filtering used by other transmissions activated by the DCI except the first transmission The filter is the same as the spatial filter used in the first transmission; or,
[0260]
The spatial relationship of each transmission activated by the DCI is the same as the spatial relationship of the most recent time slot indicated by the DCI.
[0261]
In yet another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on an uplink control channel, the activation signaling is MAC-CE, and the transmission unit 502 transmits the data according to the following understanding The uplink transmission of semi-persistent scheduling:
[0262]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the reference signal representing the spatial relationship on which other transmissions except the first transmission are activated by the MAC-CE are based The reference signal representing the spatial relationship on which the first transmission is based is the same; or
[0263]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the spatial filter used by the transmissions other than the first transmission activated by the MAC-CE and the first transmission The same spatial filter used in one transmission;
[0264]
The spatial relationship of each transmission activated by the MAC-CE is the same as the spatial relationship of the applied associated control channel of the most recent time slot.
[0265]
In another embodiment, the transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on an uplink control channel, the activation signaling is MAC-CE, and the terminal device switches from the first BWP to Other BWP, and switch back to the first BWP, the transmission unit 502 transmits the semi-persistent scheduled uplink transmission according to the following understanding:
[0266]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the reference representing the spatial relationship on which other transmissions except the first transmission activated by the MAC-CE are based The signal is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0267]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by the RRC, and the spatial filters used by the transmissions activated by the MAC-CE other than the first transmission and all The spatial filter used in the first transmission is the same; or
[0268]
The spatial relationship of each transmission activated by the MAC-CE is the same as the spatial relationship of the associated control channel applied in the most recent time slot; or
[0269]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the most recent transmission on the first BWP, and other transmissions except the first transmission activated by the MAC-CE are based on The reference signal representing the spatial relationship of is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0270]
The first transmission activated by the MAC-CE is sent according to the spatial relationship of the last transmission of the transmission on the first BWP, and is used by transmissions other than the first transmission activated by the MAC-CE The spatial filter of is the same as the spatial filter used in the first transmission.
[0271]
In another implementation manner, the transmission is periodic CSI reporting based on uplink transmission, and the activation signaling is RRC signaling, and the transmission unit 502 transmits the transmission according to the following understanding:
[0272]
The first transmission activated by the RRC signaling is sent according to the spatial relationship of the control channel configured by RRC, and the reference representing the spatial relationship on which other transmissions except the first transmission activated by the RRC signaling are based The signal is the same as the reference signal representing the spatial relationship on which the first transmission is based; or
[0273]
The first transmission activated by the RRC signaling is sent according to the spatial relationship of the control channel configured by RRC, and the spatial filters used by the transmissions other than the first transmission activated by the RRC signaling and all The spatial filter used in the first transmission is the same; or
[0274]
The spatial relationship of each transmission activated by the RRC signaling is the same as the applied spatial relationship of the most recent time slot of the associated control channel.
[0275]
With the apparatus of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, between activation signaling and deactivation signaling or the next activation signaling, the terminal device can use the same spatial filter or transmission assumption, or The respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are used to transmit or receive, which solves the problem of ambiguity in the beam indication in the above interval.
[0276]
Example 4
[0277]
This embodiment provides a beam indicating device, which is configured in a network device. Since the principle of the device to solve the problem is similar to the method of embodiment 2, its specific implementation can refer to the implementation of the method of embodiment 2, and the same content will not be repeated.
[0278]
FIG. 6 is a schematic diagram of the beam indicating device of this embodiment. As shown in FIG. 6, the beam indicating device 600 includes:
[0279]
The sending unit 601 sends activation signaling to a terminal device, and the activation signaling activates at least one transmission of the terminal device, so that the terminal device sends or receives the at least one transmission according to the following understanding: Before deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission hypothesis, or use the respective spatial filtering determined by dynamically interpreting the activation signaling Or transmission hypothesis.
[0280]
In this embodiment, the activation signaling may be CS-RNTI scrambled DCI, or SP-CSI-RNTI scrambled DCI, or MAC-CE, or RRC configuration; the transmission may be half Continuously scheduled downlink transmission, or semi-continuously scheduled uplink transmission, or periodic channel state information (CSI) reporting based on uplink transmission. Since in Embodiment 1, the activation signaling and the transmission activated by the activation signaling have been described in detail, the content of the activation signaling and the transmission activated by the activation signaling are combined here, and will not be repeated here.
[0281]
In this embodiment, as shown in FIG. 6, the beam indicating device 600 may further include:
[0282]
The configuration unit 602 configures semi-persistent scheduling parameters or periodic scheduling parameters for the terminal device through RRC signaling.
[0283]
In this embodiment, the foregoing RRC signaling may include an rrc-ConfiguredUplinkGrant information element, and the rrc-ConfiguredUplinkGrant information element may include an information element for indicating whether the srs-ResourceIndicator exists. Therefore, corresponding to the first modification of Embodiment 5 of Embodiment 1, the terminal device can determine the beam indication accordingly.
[0284]
In this embodiment, the foregoing RRC signaling may further include an srs-ResourceIndicator information element, and the srs-ResourceIndicator information element may include a field for indicating whether the SRI exists. Therefore, corresponding to the second modification of Embodiment 5 of Embodiment 1, the terminal device can determine the beam indication accordingly.
[0285]
With the apparatus of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, between activation signaling and deactivation signaling or the next activation signaling, the terminal device can use the same spatial filter or transmission assumption, or The respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are used to transmit or receive, which solves the problem of ambiguity in the beam indication in the above interval.
[0286]
Example 5
[0287]
An embodiment of the present invention also provides a terminal device, where the terminal device includes the device described in Embodiment 3.
[0288]
Fig. 7 is a schematic diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 7, the terminal device 700 may include a central processing unit 701 and a memory 702; the memory 702 is coupled to the central processing unit 701. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to implement telecommunication functions or other functions.
[0289]
In one embodiment, the functions of the device described in embodiment 3 can be integrated into the central processing unit 701, and the central processing unit 701 realizes the functions of the device described in embodiment 3, and the device described in embodiment 3 The functions of is incorporated here, so I won’t repeat them here.
[0290]
In another embodiment, the device described in Embodiment 3 can be configured separately from the central processing unit 701. For example, the device described in Embodiment 3 can be configured as a chip connected to the central processing unit 701, through the central processing unit 701. The control to realize the function of the device described in the third embodiment.
[0291]
As shown in FIG. 7, the terminal device 700 may further include: a communication module 703, an input unit 704, an audio processing unit 705, a display 706, and a power supply 707. It is worth noting that the terminal device 700 does not necessarily include all the components shown in FIG. 7; in addition, the terminal device 700 may also include components not shown in FIG. 7, and the prior art can be referred to.
[0292]
As shown in FIG. 7, the central processing unit 701 is sometimes called a controller or operating control, and may include a microprocessor or other processor devices and/or logic devices. The central processing unit 701 receives inputs and controls various components of the terminal equipment 700. Operation of components.
[0293]
Among them, the memory 702 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices. The above information related to the configuration can be stored, and the program for executing the related information can also be stored. And the central processing unit 701 can execute the program stored in the memory 702 to implement information storage or processing. The functions of other components are similar to the existing ones, so I won't repeat them here. Each component of the terminal device 700 may be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present invention.
[0294]
With the terminal equipment of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, the same spatial filter or transmission assumption can be used between activation signaling and deactivation signaling or the next activation signaling, or use The respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are sent or received, which solves the problem of ambiguity in the beam indication in the above interval.
[0295]
Example 6
[0296]
An embodiment of the present invention also provides a network device, where the network device includes the device described in Embodiment 4.
[0297]
FIG. 8 is a schematic diagram of an implementation manner of a network device according to an embodiment of the present invention. As shown in FIG. 8, the network device 800 may include: a central processing unit (CPU) 801 and a memory 802; the memory 802 is coupled to the central processing unit 801. The memory 802 can store various data; in addition, it also stores an information processing program, and executes the program under the control of the central processing unit 801 to receive various information sent by the terminal device and send various information to the terminal device.
[0298]
In one embodiment, the functions of the device described in embodiment 4 can be integrated into the central processing unit 801, and the central processing unit 801 implements the functions of the device described in embodiment 4, which is related to the device described in embodiment 4 The functions of is incorporated here, so I won’t repeat them here.
[0299]
In another embodiment, the device described in Embodiment 4 can be configured separately from the central processing unit 801. For example, the device described in Embodiment 4 can be a chip connected to the central processing unit 801, and the device can be Control to realize the function of the device described in the fourth embodiment.
[0300]
In addition, as shown in FIG. 8, the network device 800 may further include: a transceiver 803, an antenna 804, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 800 does not necessarily include all the components shown in FIG. 8; in addition, the network device 800 may also include components not shown in FIG. 8, which can refer to the prior art.
[0301]
With the network equipment of this embodiment, for semi-persistent scheduling or periodic scheduling transmission, the terminal equipment can use the same spatial filter or transmission assumption between activation signaling and deactivation signaling or the next activation signaling, Alternatively, the respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling are used to send or receive, which solves the problem of ambiguity of beam indications in the above interval.
[0302]
Example 7
[0303]
An embodiment of the present invention also provides a communication system, which includes a network device and a terminal device. The network device is, for example, the network device 800 described in Embodiment 6, and the terminal device is, for example, the terminal device 700 described in Embodiment 5.
[0304]
In this embodiment, the terminal device is, for example, a UE served by gNB. In addition to the functions of the device described in Embodiment 3, it also includes the conventional composition and functions of the terminal device. As described in Embodiment 5, it is not here. Repeat it again.
[0305]
In this embodiment, the network device may be, for example, the gNB in ​​NR. In addition to the functions of the device described in Embodiment 4, it also includes the conventional composition and functions of the network device, as described in Embodiment 6, here No longer.
[0306]
The communication system of this embodiment solves the problem of ambiguity in beam indications between activation signaling and deactivation signaling or next activation signaling in semi-persistent scheduling or other scheduling.
[0307]
The embodiment of the present invention also provides a computer-readable program, wherein when the program is executed in the terminal device, the program causes the computer to execute the method described in Embodiment 1 in the terminal device.
[0308]
An embodiment of the present invention also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in Embodiment 1 in a terminal device.
[0309]
The embodiment of the present invention also provides a computer readable program, wherein when the program is executed in the network device, the program causes the computer to execute the method described in embodiment 2 in the network device.
[0310]
An embodiment of the present invention also provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the method described in Embodiment 2 in a network device.
[0311]
The above devices and methods of the present invention can be implemented by hardware, or can be implemented by hardware combined with software. The present invention relates to such a computer-readable program, when the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various methods Or steps. Logic components such as field programmable logic components, microprocessors, processors used in computers, etc. The present invention also relates to storage media for storing the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, and the like.
[0312]
The method/device described in conjunction with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figure may correspond to each software module of the computer program flow or each hardware module. These software modules can respectively correspond to the steps shown in the figure. These hardware modules can be implemented by curing these software modules by using a field programmable gate array (FPGA), for example.
[0313]
The software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor. The processor and the storage medium may be located in the ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a larger-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
[0314]
One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can be implemented as general-purpose processors, digital signal processors (DSPs) for performing the functions described in the present invention. ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, or any appropriate combination thereof. One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, and multiple micro-processing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
[0315]
The present invention has been described above with reference to specific embodiments, but it should be clear to those skilled in the art that these descriptions are all exemplary and do not limit the scope of protection of the present invention. Those skilled in the art can make various variations and modifications to the present invention based on the spirit and principle of the present invention, and these variations and modifications are also within the scope of the present invention.
[0316]
Regarding the aforementioned implementations disclosed in this embodiment, the following additional notes are also disclosed:
[0317]
Supplement 1. A beam indicating device configured in a network device, wherein the device includes:
[0318]
A sending unit, which sends activation signaling to a terminal device, and the activation signaling activates at least one transmission of the terminal device, so that the terminal device sends or receives the at least one transmission according to the following understanding: Before activation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission hypothesis, or use the respective spatial filters determined by dynamically interpreting the activation signaling Or transmission hypothesis.
[0319]
2. The device according to appendix 1, wherein the activation signaling is DCI scrambled by CS-RNTI, or DCI scrambled by SP-CSI-RNTI, or MAC-CE, or RRC configuration.
[0320]
3. The apparatus according to appendix 1, wherein the transmission is a semi-persistent scheduled downlink transmission, or a semi-persistent scheduled uplink transmission, or a periodic channel state information (CSI) report based on uplink transmission.
[0321]
4. The device according to Supplement 1, wherein the device further includes:
[0322]
The configuration unit configures semi-persistent scheduling parameters or periodic scheduling parameters for the terminal device through RRC signaling.
[0323]
5. The device according to appendix 4, wherein the RRC signaling includes an rrc-ConfiguredUplinkGrant information element, and the rrc-ConfiguredUplinkGrant information element has an information element for indicating whether the srs-ResourceIndicator exists.
[0324]
6. The apparatus according to appendix 4, wherein the RRC signaling includes an srs-ResourceIndicator information element, and the srs-ResourceIndicator information element includes a field for indicating whether an SRI exists.
Claims
[Claim 1]
A beam indicating device configured in a terminal device, wherein the device includes: a receiving unit, which receives activation signaling, and the activation signaling activates at least one transmission; a transmission unit, which understands the At least one transmission is sent or received: before the deactivation signaling or the next activation signaling is received, all transmissions activated by the activation signaling use the same spatial filter or transmission assumption, or use dynamic interpretation The respective spatial filter or transmission hypothesis determined by the activation signaling.
[Claim 2]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled downlink transmission, or a semi-persistent scheduled uplink transmission, or a periodic channel state information (CSI) report based on the uplink transmission.
[Claim 3]
The apparatus according to claim 1, wherein using the same spatial filter or transmission hypothesis means: all transmissions activated by the activation signaling are based on the same spatial filter or reference signal; or, in the activation signaling In the case that the scheduling distance between the first transmission activated by the activation signaling and the first transmission is greater than the preset threshold, the first transmission among all the transmissions activated by the activation signaling is in accordance with the indication of the activation signaling All transmissions except for the first transmission are based on the same spatial filter or reference signal as the first transmission; or, when the activation signaling and the activation signaling are activated In the case that the scheduling distance between the first transmission is less than the preset threshold, the first transmission after the preset threshold is based on the spatial filter or reference signal indicated by the activation signaling, so After the preset threshold, all transmissions except the first transmission are based on the same spatial filter or reference signal as the first transmission.
[Claim 4]
The apparatus according to claim 1, wherein the use of respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling refers to: each transmission activated by the activation signaling is based on the activation A spatial filter or reference signal determined by the interpretation of the signaling at a predetermined time.
[Claim 5]
The apparatus according to claim 1, wherein the activation signaling is DCI scrambled by CS-RNTI, or DCI scrambled by SP-CSI-RNTI, or MAC-CE, or RRC configuration.
[Claim 6]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is DCI scrambled by CS-RNTI, and the DCI does not include a TCI area, and the activation signaling and the The scheduling distance between the first transmission activated by the activation signaling is greater than the preset threshold, the transmission unit receives the semi-persistent scheduled downlink transmission according to the following understanding: the first transmission activated by the DCI The TCI status of is the same as the TCI status applied by the resource control set (CORESET) that carries the DCI, and other transmissions activated by the DCI except the first transmission are based on the same, The reference signal used to determine the quasi-positioning synchronization of the antenna port; or the TCI status of each transmission activated by the DCI is the same as the TCI status applied by a CORESET in the most recent time slot. If the CORESET carrying the DCI exists, then The one CORESET refers to the CORESET carrying the DCI; or, if the CORESET carrying the DCI does not exist, the one CORESET refers to the activated carrier bandwidth (BWP) in the same cell as the DCI The lowest numbered CORESET on the list.
[Claim 7]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is DCI scrambled by CS-RNTI, and the DCI does not include a TCI area, and the activation signaling and the The scheduling distance between the first transmissions activated by the activation signaling is less than the preset threshold, the transmission unit receives the semi-persistent scheduling downlink transmission according to the following understanding: For the transmission activated by the DCI, The TCI state of the transmission before the preset threshold is the same as the TCI state of the smallest CORESET number on the activated BWP of the most recent time slot, and the TCI state and bearer of the first transmission after the preset threshold The TCI status of the CORESET of the DCI is the same, and the other transmissions after the preset threshold except the first transmission are based on the same as the first transmission, which is used to determine the quasi-positioning synchronization of the antenna port Or for the transmission activated by the DCI, the TCI state of the transmission before the preset threshold is the same as the TCI state with the smallest CORESET number on the activated BWP of the most recent time slot, and the The TCI state of the transmission after the set threshold is the same as the TCI state of a CORESET in the most recent time slot. The one CORESET refers to the CORESET carrying the DCI; or, if the CORESET does not exist, the one CORESET It refers to the CORESET with the smallest number on the activated BWP in the same cell as the DCI; or the TCI state of each transmission activated by the DCI and the most recent time slot in the activated BWP in the same cell as the DCI The TCI status of the smallest CORESET is the same.
[Claim 8]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is a DCI scrambled by CS-RNTI, the DCI includes a TCI area, the activation signaling and the activation If the scheduling distance between the first transmission activated by the signaling is greater than the preset threshold, the transmission unit receives the semi-persistent scheduled downlink transmission according to the following understanding: the first transmission activated by the DCI The TCI state is determined by the TCI state in the TCI-state indicated by the TCI area of ​​the DCI and in the TCI-state on the same BWP as the receiving of the first transmission, except for the first transmission activated by the DCI The other transmission is based on the same reference signal used to determine the quasi-positioning synchronization of the antenna port as the first transmission; or the TCI status of each transmission activated by the DCI and the TCI area indicated by the DCI , The TCI-state of the most recent time slot on the same BWP as the one that received the transmission is the same.
[Claim 9]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled downlink transmission, the activation signaling is a DCI scrambled by CS-RNTI, the DCI includes a TCI area, the activation signaling and the activation If the scheduling distance between the first transmission activated by the signaling is less than the preset threshold, the transmission unit receives the downlink transmission of the semi-persistent scheduling according to the following understanding: For the transmission activated by the DCI, The TCI state of the transmission before the preset threshold is the same as the TCI state of the smallest numbered CORESET on the activated BWP of the most recent time slot. The TCI state of the first transmission after the preset threshold is determined by The TCI-state indicated by the TCI area of ​​the DCI and determined by the TCI-state on the same BWP as the receiving of the first transmission, the transmissions other than the first transmission after the preset threshold According to the same reference signal used for determining antenna port quasi-positioning synchronization as the first transmission; or for the transmission activated by the DCI, the TCI status of the transmission before the preset threshold and the latest time slot The TCI status of the CORESET with the smallest number on the activated BWP is the same, and the TCI status of each transmission after the preset threshold is indicated by the TCI area of ​​the DCI, and the first one is received. It is determined by the TCI-state of the most recent time slot on the same BWP that is transmitted; or the TCI state of each transmission activated by the DCI and the TCI with the smallest CORESET number among the activated BWPs in the same cell with the most recent time slot and the DCI The status is the same.
[Claim 10]
The device according to claim 1, wherein the transmission is semi-persistent scheduled uplink transmission, the activation signaling is RRC signaling, and the transmission is type 1 uplink transmission, then the transmission unit is based on The following is an understanding of sending the uplink transmission of the semi-persistent scheduling: According to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling, the spatial relationship of the first transmission activated by the RRC signaling is determined by the RRC signaling The reference signal representing the spatial relationship on which the activated transmissions other than the first transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or according to rrc- in the RRC signaling The srs-ResourceIndicator in ConfiguredUplinkGrant determines the spatial relationship of the first transmission activated by the RRC signaling, and the spatial filter used by the transmissions other than the first transmission activated by the RRC signaling and the The spatial filter used for the first transmission is the same; or the spatial relationship of each transmission activated by the RRC signaling is based on the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling to indicate the latest time slot of the SRS resource The spatial relationship is determined.
[Claim 11]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 1 uplink transmission, the activation signaling is RRC signaling, and the RRC signaling The rrc-ConfiguredUplinkGrant has a cell for indicating whether srs-ResourceIndicator exists, and when the cell is set to enable, the transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: The srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling determines the spatial relationship of the first transmission activated by the RRC signaling, and is based on other transmissions except the first transmission activated by the RRC signaling The reference signal representing the spatial relationship is the same as the reference signal representing the spatial relationship on which the first transmission is based; or is determined to be activated by the RRC signaling according to the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling The spatial relationship of the first transmission is that the spatial filter used by the transmissions other than the first transmission activated by the RRC signaling is the same as the spatial filter used by the first transmission; or The spatial relationship of each transmission activated by the RRC signaling is determined according to the spatial relationship of the srs-ResourceIndicator in the rrc-ConfiguredUplinkGrant in the RRC signaling indicating the most recent time slot of the SRS resource; when the cell is set to disable When possible, the transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: The spatial relationship of the first transmission activated by the RRC signaling is based on the activated BWP belonging to the same cell as the uplink transmission The spatial direction of the uplink control channel with the smallest number is determined, the reference signal representing the spatial relationship based on the transmission other than the first transmission activated by the RRC signaling and the representation based on the first transmission The reference signal of the spatial relationship is the same; orThe spatial relationship of the first transmission activated by the RRC signaling is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission, except for the one activated by the RRC signaling. The spatial filter used in transmissions other than the first transmission is the same as the spatial filter used in the first transmission; or the spatial relationship and the basis of each transmission activated by the RRC signaling The uplink transmission belongs to the same cell with the smallest numbered uplink control channel in the activated BWP and has the same spatial relationship in the nearest time slot.
[Claim 12]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 1 uplink transmission, the activation signaling is RRC signaling, and the RRC signaling If the srs-ResourceIndicator contains a field for indicating that SRI does not exist, the transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: the spatial relationship of the first transmission activated by the RRC signaling is based on The uplink transmission is determined by the spatial direction of the smallest numbered uplink control channel in the activated BWP of the same cell, and the other transmissions activated by the RRC signaling except the first transmission are based on which represents the spatial relationship The reference signal is the same as the reference signal representing the spatial relationship on which the first transmission is based; or the spatial relationship of the first transmission activated by the RRC signaling is based on the activated BWP belonging to the same cell as the uplink transmission Determine the spatial direction of the uplink control channel with the smallest number, the spatial filter used for transmissions other than the first transmission activated by the RRC signaling and the spatial filter used for the first transmission The same; or the spatial relationship of each transmission activated by the RRC signaling is the same as the spatial relationship of the latest time slot of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the uplink transmission.
[Claim 13]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 2 uplink transmission, and the activation signaling is a DCI format 0_0 scrambled by CS-RNTI , The transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: the spatial relationship of the first transmission activated by the DCI is based on the uplink with the smallest number among the activated BWPs that belong to the same cell as the DCI The spatial direction of the control channel is determined, and the reference signal representing the spatial relationship based on the transmissions other than the first transmission activated by the DCI is the same as the reference signal representing the spatial relationship based on the first transmission Or the spatial relationship of the first transmission activated by the DCI is determined according to the spatial direction of the uplink control channel with the smallest number in the activated BWP belonging to the same cell as the DCI, and the first transmission activated by the DCI is divided by the first The spatial filter used for transmissions other than one transmission is the same as the spatial filter used for the first transmission; or the spatial relationship of each transmission activated by the DCI is based on the same cell as the DCI. The spatial relationship of the latest time slot of the uplink control channel with the smallest number in the BWP is the same.
[Claim 14]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and the transmission is a type 2 uplink transmission, and the activation signaling is a DCI format 0_1 ​​scrambled by CS-RNTI , The transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: the first transmission activated by the DCI is sent according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area, and is transmitted by the The reference signal representing the spatial relationship on which transmissions other than the first transmission activated by DCI are based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or the first one activated by the DCI The transmission is sent according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area, and the spatial filter used by the transmissions other than the first transmission activated by the DCI and the first transmission The spatial filters used are the same; or the spatial relationship of each transmission activated by the DCI is the same as the spatial relationship of the most recent time slot indicated by the DCI.
[Claim 15]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on an uplink data channel, and the activation signaling is DCI scrambled by SP-CSI-RNTI Format 0_1, the transmission unit sends the semi-persistent scheduled uplink transmission according to the following understanding: the first transmission activated by the DCI is sent according to the spatial relationship indicated by the DCI carrier indication area and the SRI area, and is The reference signal representing the spatial relationship on which transmissions other than the first transmission is activated by the DCI is the same as the reference signal representing the spatial relationship on which the first transmission is based; or is activated by the DCI The first transmission is sent according to the spatial relationship indicated by the carrier indication area of ​​the DCI and the SRI area, and the spatial filter used by the transmissions other than the first transmission activated by the DCI and the first transmission The spatial filter used for one transmission is the same; or, the spatial relationship of each transmission activated by the DCI is the same as the spatial relationship indicated by the DCI of the most recent time slot.
[Claim 16]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on an uplink control channel, the activation signaling is MAC-CE, and the transmission unit is based on the following Understand the sending of the semi-persistent scheduled uplink transmission: The first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and other than the first transmission activated by the MAC-CE The reference signal representing the spatial relationship on which the transmission is based is the same as the reference signal representing the spatial relationship on which the first transmission is based; or the first transmission activated by the MAC-CE is based on the space of the control channel configured by RRC Relational transmission, the spatial filter used by transmissions other than the first transmission activated by the MAC-CE is the same as the spatial filter used by the first transmission; each activated by the MAC-CE The spatial relationship of each transmission is the same as the spatial relationship of the applied associated control channel of the most recent time slot.
[Claim 17]
The apparatus according to claim 1, wherein the transmission is a semi-persistent scheduled uplink transmission, and is a semi-persistent CSI report based on an uplink control channel, the activation signaling is MAC-CE, and the terminal equipment When a BWP switches to another BWP and switches back to the first BWP, the transmission unit sends the uplink transmission of the semi-persistent scheduling according to the following understanding: The first transmission activated by the MAC-CE is configured according to RRC The spatial relationship transmission of the control channel, the reference signal representing the spatial relationship based on other transmissions except the first transmission activated by the MAC-CE, and the reference representing the spatial relationship based on the first transmission The signal is the same; or the first transmission activated by the MAC-CE is sent according to the spatial relationship of the control channel configured by RRC, and the space used by other transmissions except the first transmission activated by the MAC-CE The filter is the same as the spatial filter used in the first transmission; or the spatial relationship of each transmission activated by the MAC-CE is the same as the spatial relationship of the applied associated control channel in the most recent time slot; Or the first transmission activated by the MAC-CE is sent according to the spatial relationship of the most recent transmission on the first BWP, and other transmissions other than the first transmission activated by the MAC-CE are sent The reference signal representing the spatial relationship based on is the same as the reference signal representing the spatial relationship based on the first transmission; or the first transmission activated by the MAC-CE is based on the most recent transmission on the first BWP In the spatial relationship transmission of the transmission, the spatial filter used by the transmissions other than the first transmission activated by the MAC-CE is the same as the spatial filter used by the first transmission.
[Claim 18]
The apparatus according to claim 1, wherein the transmission is periodic CSI reporting based on uplink transmission, and the activation signaling is RRC signaling, and the transmission unit transmits the periodic CSI according to the following understanding: The first transmission activated by the RRC signaling is sent according to the spatial relationship of the control channel configured by the RRC, and the reference signal representing the spatial relationship on which other transmissions except the first transmission are activated by the RRC signaling are based It is the same as the reference signal indicating the spatial relationship on which the first transmission is based; or the first transmission activated by the RRC signaling is sent based on the spatial relationship of the control channel configured by the RRC, and is activated by the RRC signaling The spatial filter used in transmissions other than the first transmission is the same as the spatial filter used in the first transmission; or the spatial relationship of each transmission activated by the RRC signaling is associated with The most recent time slot of the control channel has the same applied spatial relationship.
[Claim 19]
A beam indicating device configured in a network device, wherein the device includes: a sending unit that sends activation signaling to a terminal device, the activation signaling activates at least one transmission of the terminal device so that the terminal device The at least one transmission is sent or received according to the following understanding: before receiving the deactivation signaling or the next activation signaling, all transmissions activated by the activation signaling use the same spatial filter or transmission assumption, Or use respective spatial filters or transmission hypotheses determined by dynamically interpreting the activation signaling.
[Claim 20]
The apparatus according to claim 19, wherein the activation signaling is DCI scrambled by CS-RNTI, or DCI scrambled by SP-CSI-RNTI, or MAC-CE, or RRC configuration; The transmission is a semi-persistent scheduled downlink transmission, or a semi-persistent scheduled uplink transmission, or periodic channel state information (CSI) reporting based on uplink transmission.