Method and device for transmitting and receiving uplink signals
technical field
[0001]
The embodiments of the present application relate to the field of communication technologies.
Background technique
[0002]
Unlicensed frequency bands are an important part of spectrum resources. Currently, many systems support data transmission in unlicensed frequency bands, such as WiFi, Long Term Evolution (LTE, Long Term Evolution), and License Assisted Access (LAA, License Assisted Access), etc. . However, currently the New Radio (NR, New Radio) system does not support unlicensed frequency bands.
[0003]
In the unlicensed frequency band, in order to use spectrum resources fairly and efficiently among different systems/devices, a device needs to confirm that the resources are available before starting to send data before sending data. Since it is necessary to confirm that the resource is available before sending, the uplink transmission based on dynamic scheduling requires the network device (such as a base station) to confirm that a resource is available before sending the dynamic scheduling indication information; the terminal device (such as the UE) confirms the resource indicated by the dynamic scheduling indication information. After it is available, the uplink transmission is sent on the corresponding resource. This leads to a decrease in the efficiency of uplink transmission based on dynamic scheduling and a possible increase in delay; in this sense, applying uplink transmission not based on dynamic scheduling in unlicensed frequency bands can achieve higher efficiency and lower delay.
[0004]
On the other hand, NR introduces Configuration Grant (CG, Configuration Grant). NR supports two types of CG: the first type of configuration authorization (CG Type 1) and the second type of configuration authorization (CG Type 2).
[0005]
In CG Type 1, the time-frequency resources and other parameters required for sending PUSCH on the configured time-frequency resources are configured through RRC signaling. After the terminal device receives the RRC signaling, it can send on the configured time-frequency resources. PUSCH.
[0006]
In CG Type 2, resource configuration includes two steps: after configuring parameters such as the period of time domain resources through high-level signaling, then configuring time domain resources, frequency domain resources and other PUSCH on the configured time-frequency resources through an activated DCI The required parameters, after receiving the activated DCI, the terminal device can send the PUSCH on the configured time-frequency resources.
[0007]
It should be noted that the above description of the technical background is only for the convenience of clearly and completely describing the technical solutions of the present application and facilitating the understanding of those skilled in the art. It should not be assumed that the above-mentioned technical solutions are known to those skilled in the art simply because these solutions are described in the background section of this application.
[0008]
SUMMARY OF THE INVENTION
[0009]
However, the inventor found that if CG is applied to an NR system (NR_U, NR operation on unlicensed band) deployed in an unlicensed frequency band, the resource usage requirements of NR_U need to be met. For example, the terminal device needs to at least confirm that time-frequency resources are available before sending PUSCH . Therefore, the CG-based PUSCH transmission scheme in NR cannot be directly applied to NR_U.
[0010]
In view of at least one of the above problems, the embodiments of the present application provide a method and apparatus for sending and receiving uplink signals, which can support the sending and receiving of CG-based uplink signals (such as PUSCH) that meet NR-U requirements, or other Transmission and reception of uplink signals (eg PRACH, PUCCH, SRS) on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0011]
According to an aspect of the embodiments of the present application, a method for sending an uplink signal is provided, including:
[0012]
The terminal device receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0013]
The terminal device receives physical layer signaling, the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0014]
The terminal device starts to send the uplink signal from the first starting position on the one or more time-frequency resources.
[0015]
According to yet another aspect of the embodiments of the present application, an apparatus for sending an uplink signal is provided, including:
[0016]
an information receiving unit, which receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0017]
a signaling receiving unit that receives physical layer signaling, the physical layer signaling being used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0018]
A signal sending unit, which starts to send an uplink signal from the first starting position on the one or more time-frequency resources.
[0019]
According to yet another aspect of the embodiments of the present application, a method for receiving an uplink signal is provided, including:
[0020]
The network device sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0021]
The network device sends physical layer signaling, the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0022]
The network device receives an uplink signal, and the uplink signal is sent from the first starting position on the one or more time-frequency resources.
[0023]
According to yet another aspect of the embodiments of the present application, an apparatus for receiving an uplink signal is provided, including:
[0024]
an information sending unit, which sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0025]
a signaling sending unit that sends physical layer signaling, the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0026]
A signal receiving unit, which receives an uplink signal, where the uplink signal is sent from the first starting position on the one or more time-frequency resources.
[0027]
According to yet another aspect of the embodiments of the present application, a communication system is provided, including:
[0028]
A terminal device, which receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; receives physical layer signaling, where the physical layer signaling is used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and sending an uplink signal from the first starting position on the one or more time-frequency resources;
[0029]
A network device, which sends the first indication information and the physical layer signaling, and receives the uplink signal.
[0030]
One of the beneficial effects of the embodiments of the present application is that: a first starting position within the time domain range of one or more time-frequency resources semi-statically configured or semi-persistently scheduled is indicated through physical layer signaling, and the first starting position is used for sending The uplink signal can support the transmission and reception of CG-based uplink signals that meet the NR-U requirements, or the transmission and reception of other uplink signals on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0031]
With reference to the following description and drawings, specific embodiments of the present application are disclosed in detail, indicating the manner in which the principles of the present application may be employed. It should be understood that the embodiments of the present application are not thereby limited in scope. Embodiments of the present application include many changes, modifications and equivalents within the spirit and scope of the appended claims.
[0032]
Features described and/or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or instead of features in other embodiments .
[0033]
It should be emphasized that the term "comprising/comprising" when used herein refers to the presence of a feature, integer, step or component, but does not exclude the presence or addition of one or more other features, integers, steps or components.
Description of drawings
[0034]
Elements and features described in one figure or embodiment of the present application may be combined with elements and features shown in one or more other figures or embodiments. Furthermore, in the figures, like reference numerals refer to corresponding parts throughout the several figures, and may be used to designate corresponding parts that are used in more than one embodiment.
[0035]
1 is a schematic diagram of a communication system according to an embodiment of the present application;
[0036]
2 is a schematic diagram of a method for sending an uplink signal according to an embodiment of the present application;
[0037]
3 is an example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application;
[0038]
4 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application;
[0039]
FIG. 5 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application;
[0040]
6 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application;
[0041]
FIG. 7 is an exemplary diagram of the COT of LTE-LAA;
[0042]
FIG. 8 is an exemplary diagram of the COT of an embodiment of the present application;
[0043]
9 is another schematic diagram of a method for sending an uplink signal according to an embodiment of the present application;
[0044]
FIG. 10 is an example diagram of a first time-frequency resource according to an embodiment of the present application;
[0045]
11 is another schematic diagram of a method for sending an uplink signal according to an embodiment of the present application;
[0046]
Fig. 12 is an example diagram of the uplink and downlink configuration of NR;
[0047]
FIG. 13 is an exemplary diagram of an uplink and downlink configuration according to an embodiment of the present application;
[0048]
14 is a schematic diagram of a method for receiving an uplink signal according to an embodiment of the present application;
[0049]
15 is a schematic diagram of an apparatus for transmitting an uplink signal according to an embodiment of the present application;
[0050]
16 is a schematic diagram of an apparatus for receiving an uplink signal according to an embodiment of the present application;
[0051]
17 is a schematic diagram of a network device according to an embodiment of the present application;
[0052]
FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present application.
Detailed ways
[0053]
The foregoing and other features of the present application will become apparent from the following description with reference to the accompanying drawings. In the specification and drawings, specific embodiments of the present application are specifically disclosed, which are indicative of some embodiments in which the principles of the present application may be employed, it being understood that the present application is not limited to the described embodiments, on the contrary, the present The application includes all modifications, variations and equivalents falling within the scope of the appended claims.
[0054]
In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements in terms of appellation, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be referred to by these terms restricted. The term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "comprising", "including", "having", etc. refer to the presence of stated features, elements, elements or components, but do not preclude the presence or addition of one or more other features, elements, elements or components.
[0055]
In the embodiments of the present application, the singular forms "a", "the", etc. include the plural forms, and should be broadly understood as "a" or "a class" rather than being limited to the meaning of "an"; in addition, the term "the" "" is understood to include both the singular and the plural, unless the context clearly dictates otherwise. In addition, the term "based on" should be understood as "at least in part based on..." and the term "based on" should be understood as "based at least in part on..." unless the context clearly dictates otherwise.
[0056]
In this embodiment of the present application, the term "communication network" or "wireless communication network" may refer to a network conforming to any of the following communication standards, such as Long Term Evolution (LTE, Long Term Evolution), Long Term Evolution enhanced (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access) and so on.
[0057]
Moreover, the communication between devices in the communication system can be carried out according to communication protocols at any stage, for example, including but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G , New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
[0058]
In this embodiment of the present application, 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 devices may include but are not limited to the following devices: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobility management entity (MME, Mobile Management Entity), gateway, server, Radio Network Controller (RNC, Radio Network Controller), Base Station Controller (BSC, Base Station Controller) and so on.
[0059]
The base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), and 5G base station (gNB), etc., and may also include a remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay) or low power node (eg femeto, pico, etc.). And the term "base station" may include some or all of their functions, each base station may provide communication coverage for a particular 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.
[0060]
In the embodiments of this application, the term "User Equipment" (UE, User Equipment) or "Terminal Equipment" (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services. A terminal device may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
[0061]
Wherein, the terminal device may include but is not limited to the following devices: Cellular Phone (Cellular Phone), Personal Digital Assistant (PDA, Personal Digital Assistant), wireless modem, wireless communication device, handheld device, machine type communication device, laptop computer, Cordless phones, smartphones, smart watches, digital cameras, and more.
[0062]
For another example, in scenarios such as the Internet of Things (IoT, Internet of Things), the terminal device may also be a machine or device that performs monitoring or measurement, such as but not limited to: Machine Type Communication (MTC, Machine Type Communication) terminals, Vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, etc.
[0063]
In addition, the term "network side" or "network device side" refers to one side of the network, which may be a certain base station, and may also include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to the side of a user or terminal, which may be a certain UE, or may include one or more terminal devices as above.
[0064]
The following describes the scenarios of the embodiments of the present application by using examples, but the present application is not limited thereto.
[0065]
FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates the case of a terminal device and a network device as an example. As shown in FIG. 1 , a communication system 100 may include a network device 101 and terminal devices 102 and 103 . For simplicity, FIG. 1 only takes two terminal devices and one network device as an example for description, but the embodiment of the present application is not limited to this.
[0066]
In this embodiment of the present application, the network device 101 and the terminal devices 102 and 103 may perform transmission of existing services or services that can be implemented in the future. For example, these services may include but are not limited to: Enhanced Mobile Broadband (eMBB, enhanced Mobile Broadband), Massive Machine Type Communication (mMTC, massive Machine Type Communication) and Ultra-Reliable and Low Latency Communication (URLLC, Ultra-Reliable and Low). -Latency Communication), etc.
[0067]
In order to support data transmission in unlicensed frequency bands, LAA (hereinafter referred to as LTE-LAA) is introduced in LTE. LTE-LAA supports an uplink transmission based on semi-persistent scheduling, such as AUL PUSCH. In order to reduce the workload of standardization, the scheme in LTE-LAA can be used as much as possible to support uplink transmission based on semi-static configuration or semi-persistent scheduling in NR_U. However, from LTE to NR, the flexibility of NR increases and can cover more application scenarios. Accordingly, the industry expects NR_U to be more flexible than LTE-LAA.
[0068]
For example, only two channel access modes are supported in LTE-LAA, while more than two channel access modes may be supported in NR_U. For example, a Channel Occupation Time (COT, Channel Occupation Time) in LTE-LAA includes only one uplink-downlink conversion, while in NR-U, a channel occupancy time may include two or more uplink-downlink conversions.
[0069]
For another example, only 15 kHz subcarrier spacing (SCS, SubCarrier Spacing) is supported in LTE-LAA, while more than one SCS may be supported in NR_U, for example, 15 kHz, 30 kHz, 60 kHz, 120 kHz, and so on.
[0070]
For another example, in LTE-LAA, scheduling is performed in units of subframes, while in NR_U, scheduling may be supported in units of slots (slots) and/or symbols (symbols).
[0071]
For another example, LTE-LAA only supports sending PUSCH and Sounding Reference Signal (SRS, Sounding Reference Signal) in unlicensed frequency bands, and NR_U may also support sending Physical Random Access Channel (PRACH, Physical Random Access Channel) and Physical Uplink Control Channel (PUCCH, Physical Uplink Control Channel), PRACH and PUCCH may also be sent on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0072]
Considering the above difference between NR_U and LTE-LAA, the solution in LTE-LAA cannot be directly applied to NR_U. The embodiments of the present application provide an uplink transmission scheme suitable for NR_U.
[0073]
In the following description, the terms "uplink control signal" and "uplink control information (UCI, Uplink Control Information)" or "physical uplink control channel (PUCCH, Physical Uplink Control Channel)" can be used interchangeably without causing confusion. In other words, the terms "uplink data signal" and "uplink data information" or "Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel)" can be interchanged;
[0074]
The terms "downlink control signal" and "downlink control information (DCI, Downlink Control Information)" or "physical downlink control channel (PDCCH, Physical Downlink Control Channel)" are interchangeable, and the terms "downlink data signal" and "downlink data information" Or "Physical Downlink Shared Channel (PDSCH, Physical Downlink Shared Channel)" can be interchanged.
[0075]
In addition, sending or receiving PUSCH can be understood as sending or receiving uplink data carried by PUSCH, and sending or receiving PUCCH can be understood as sending or receiving uplink information carried by PUCCH; uplink signals can include uplink data signals and/or uplink control signals, etc. , which may also be called UL transmission or uplink information or uplink channel.
[0076]
Embodiments of the first aspect
[0077]
An embodiment of the present application provides a method for sending an uplink signal, which is described from the side of a terminal device. FIG. 2 is a schematic diagram of a method for sending an uplink signal according to an embodiment of the present application. As shown in FIG. 2 , the method includes:
[0078]
201. The terminal device receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0079]
202. The terminal device receives physical layer signaling, where the physical layer signaling is used to indicate a first starting position, and the first starting position is within one or more time-frequency resources of the at least one time-frequency resource. in the time domain; and
[0080]
203. The terminal device starts to send an uplink signal on the one or more time-frequency resources from the first starting position.
[0081]
It should be noted that the above FIG. 2 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 2 .
[0082]
In some embodiments, the first indication information is carried by, for example, high-level signaling and/or physical layer signaling, and the high-level signaling is, for example, Radio Resource Control (RRC, Radio Resource Control) signaling (for example, referred to as an RRC message (RRC message). ), for example, including MIB, system information, dedicated RRC message; or called RRC IE (RRC information element)) and/or MAC (Medium Access Control) signaling (or called MAC IE (MAC information element)); but this The application is not limited to this. The first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling. The at least one time-frequency resource is used for the terminal device to send an uplink signal.
[0083]
FIG. 3 is an example diagram of a time-frequency resource of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application. As shown in FIG. 3 , a time-frequency resource that can be semi-statically configured or semi-persistently scheduled in one cycle.
[0084]
FIG. 4 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application, and FIG. 5 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application. As shown in FIGS. 4 and 5 , it is assumed that there are two or more time-frequency resources in a semi-static configuration or semi-persistent scheduling in a period, and at least two adjacent time-frequency resources in the time domain are discontinuous.
[0085]
FIG. 6 is another example diagram of time-frequency resources of semi-static configuration or semi-persistent scheduling according to an embodiment of the present application. As shown in the figure, it is assumed that there are two or more time-frequency resources in a semi-static configuration or semi-persistent scheduling in a period, and the time-frequency resources adjacent to each other in the time domain are continuous.
[0086]
FIG. 3 to FIG. 6 schematically illustrate by taking the semi-static configuration or semi-persistent scheduling of time-frequency resources periodically as an example, but the present application is not limited thereto.
[0087]
The terminal device may send an uplink signal on one or more of these time-frequency resources (herein referred to as at least one time-frequency resource) that are semi-statically configured or semi-persistently scheduled, and the one or more time-frequency resources are, for example, a terminal Equipment selection, this application is not limited to this. For simplicity, the one or more time-frequency resources are referred to as the first time-frequency resource, and the current transmission of the uplink signal (or the current uplink transmission) is referred to as the first uplink transmission.
[0088]
In some embodiments, the uplink signal may include at least one of the following signals or channels: Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Physical Uplink Control Channel (PUCCH), reference signals (eg sounding reference signal (SRS), demodulation reference signal (DMRS)). The present application is not limited to this, and the PUSCH will be used as an example for description below.
[0089]
In LTE-LAA, only one uplink and downlink conversion is included in one channel occupation time (COT), and the time interval between adjacent transmissions in one COT is not strictly limited. FIG. 7 is an example diagram of the COT of LTE-LAA. As shown in FIG. 7 , only one uplink and downlink conversion is included in one channel occupation time.
[0090]
But in NR_U, one channel occupation time may include two or more uplink and downlink conversions. Considering fair coexistence with other technologies (eg, LAA, WiFi, etc.), there may be stricter constraints on the time interval between adjacent transmissions in a COT. FIG. 8 is an example diagram of a COT according to an embodiment of the present application. As shown in FIG. 8 , one channel occupation time may include two or more uplink and downlink conversions.
[0091]
For example, if the terminal device uses the following class 1 channel access mode to send an uplink transmission, the time interval between the uplink transmission and the previous transmission may need to meet a certain time interval requirement. For example, the time interval between the upstream transmission and the previous transmission is not greater than 25us.
[0092]
Further, the channel access mode of class 1 supported in LTE-LAA only includes mode B, while NR_U will support more than one channel access mode of class 1, and the time interval corresponding to different channel access modes of class 1 Requirements may also vary.
[0093]
For example, as shown in Table 1 below, if the terminal device uses Mode B to send an uplink transmission, the time interval between the uplink transmission and the previous transmission should be equal to 25us; if the terminal device uses Mode C to send an uplink transmission, the uplink transmission The time interval between the transmission and the previous transmission should be equal to 16us. If the terminal device uses Mode C to send an uplink transmission, the time interval between the uplink transmission and the previous transmission should be less than or equal to 16us.
[0094]
Table 1
[0095]
[table 0001]
way B ＝25us
way C ＝16us
way D ＝<16us
[0096]
Since the last transmission may be sent by the base station or other devices, in order to ensure that the time interval between the uplink transmission and the last transmission meets the requirements, the base station needs to dynamically indicate a starting position for sending the uplink transmission.
[0097]
In this embodiment of the present application, the network device can dynamically indicate the first starting position within the time domain range of the first time-frequency resource through physical layer signaling, so as to ensure that the first uplink transmission is compatible with other transmissions (for example, the last The time interval between uplink transmissions) meets the requirements, so that the CG uplink transmissions that meet the NR-U requirements can be supported.
[0098]
In some embodiments, physical layer signaling refers to control information carried through a physical layer control channel and/or physical layer signal, such as information carried by DCI and/or sequence in PDCCH, but the present application is not limited thereto. One physical layer signaling may be used to indicate one or more first starting positions.
[0099]
For example, one physical layer signaling is only used to indicate the first starting position corresponding to the first time-frequency resource.
[0100]
For another example, the physical layer signaling is used to indicate the first starting position corresponding to the first time-frequency resource, and also used to indicate the first starting position corresponding to the second time-frequency resource. Wherein, the first time-frequency resource is one or more continuous or discontinuous time-frequency resources in the time domain, and the second time-frequency resource is another one or more continuous or discontinuous time-frequency resources. The first start position corresponding to the first time-frequency resource is within the time domain range of the first time-frequency resource, and the first start position corresponding to the second time-frequency resource is within the time domain range of the second time-frequency resource. The method for the terminal device to send the uplink signal on the second time-frequency resource is the same as the behavior for sending the uplink signal on the first time-frequency resource.
[0101]
In some embodiments, the channel access modes can be divided into two categories: a first type of channel access mode (class 1) and a second type of channel access mode (class 2).
[0102]
The first type of channel access mode (class 1) is a channel access mode for channel sharing; for example, it may include:
[0103]
Mode B (channel access Type B): channel access with a channel detection time of 25us;
[0104]
Mode C (channel access Type C): channel access with a channel detection time of 16us (not supported in LTE-LAA);
[0105]
Mode D (channel access Type D): direct transmission (not supported in LTE-LAA).
[0106]
The second type of channel access mode (class 2) is the channel access mode used to initialize the occupied channel, or is referred to as an independent channel access mode; for example, it may include:
[0107]
Mode A (channel access Type A): Channel access with random backoff based on a variable contention window.
[0108]
Class 1 may also include other channel access methods, for example, multiple channel access methods in class 1 may have different channel detection times; class 2 may also include other channel access methods, for example, in class 2 Multiple channel access modes can have different priorities, and different priorities have different value ranges of the contention window. The channel access method is only schematically described above, and the present application is not limited to this. For example, more methods can be defined by changing the channel detection time and/or priority.
[0109]
In some embodiments, the terminal device may support one or more of class 1, and/or, may also support one or more of class 2. For a certain uplink transmission, one of at least one channel access mode supported by the terminal device needs to be adopted.
[0110]
For example, the terminal device can support at least one first channel access mode, such as supporting modes B and C; it can also support at least one first channel access mode and at least one second channel access mode, such as supporting mode A and mode B; at least one second channel access mode, such as mode A, may also be supported.
[0111]
For example, the terminal equipment supports Mode A and Mode B, and the first uplink transmission can be sent in Mode B (the first channel access mode), or it can be said that the terminal device can use Mode B (the first channel access mode) to send the first uplink transmission. An uplink transmission.
[0112]
In this application, at least one channel access mode supported (or capable of being adopted) by the terminal device includes a channel access mode that can be used by the terminal device to send the above-mentioned first uplink transmission on the above-mentioned first time-frequency resource. The at least one channel access mode supported by the terminal device may be per UE (that is, for different uplink transmission types and/or different time-frequency resource configurations, at least one channel access mode that a terminal device can use) The way is the same), it can also be for time-frequency resource configuration (per resource configuration) and/or uplink transmission type (per UL transmission type) (that is, for different uplink transmission types and/or different time-frequency resource configuration, At least one channel access mode that a terminal device can adopt may be different).
[0113]
In this case, before sending the first uplink transmission, the terminal device may determine, according to the time-frequency resource configuration corresponding to the first time-frequency resource and/or the uplink transmission type corresponding to the first uplink transmission, which can be used by the terminal device in the above-mentioned first uplink transmission. The channel access mode (or at least one channel access mode supported by the terminal device) of the first uplink transmission is sent on the time-frequency resource.
[0114]
In some embodiments, the first channel access manner and/or the second channel access manner belong to at least one channel access manner supported (or capable of being adopted) by the terminal device, for example, the at least one channel access manner The channel access mode belonging to class 1 is referred to as the first channel access mode, and the channel access mode belonging to class 2 in the at least one channel access mode is referred to as the second channel access mode. At least one channel access mode supported by the terminal device may be predefined or preconfigured or indicated by the network device.
[0115]
In this application, the network device indication means that the network device is instructed by high-layer signaling and/or physical layer signaling. RRC message), for example, including MIB, system information, dedicated RRC message; or called RRC IE (RRC information element)) and/or MAC (Medium Access Control) signaling (or called MAC IE (MAC information element)).
[0116]
For example, the at least one channel access mode supported by the terminal device may be predefined according to the type of uplink transmission, and the channel access modes that can be adopted corresponding to different uplink signal types may be different. For example, if the uplink transmission is CG PUSCH, at least one channel access mode supported (or able to be adopted) by the terminal device may include mode A and mode B; if the uplink transmission is PRACH, the terminal device supports (or can adopt) The at least one channel access manner may include manner A and manner C.
[0117]
For another example, the at least one channel access mode supported by the terminal device may be indicated by the network device through high layer signaling and/or physical layer signaling. Specifically, for example, it may be indicated by the network device while indicating at least one time-frequency resource of semi-static configuration or semi-persistent scheduling. For example, the first indication information includes an indication field, where the indication field is used to indicate that the terminal device can send at least one time-frequency resource for uplink transmission on at least one time-frequency resource of semi-static configuration or semi-persistent scheduling indicated by the first indication information. A channel access mode, at least one channel access mode indicated by the indication is at least one channel access mode supported by the terminal device, or can be used by the terminal device to send the above-mentioned first uplink on the above-mentioned first time-frequency resource The transmission channel access method.
[0118]
If the channel access mode supported by the terminal device includes at least one channel access mode of class 1, since the channel access mode of class 1 is a channel access mode used for channel sharing, and the terminal device cannot predict whether the base station occupies the channel, so , whether the terminal device can use one of the at least one class 1 channel access mode to send the uplink transmission depends on the dynamic indication of the base station.
[0119]
In this embodiment of the present application, the network device can dynamically indicate the first starting position and/or the first channel access mode through physical layer signaling, which can not only ensure the uplink transmission and other transmissions (for example, the last uplink transmission) The time interval between them meets the requirements, and can support multiple channel access modes, so as to support the transmission and reception of CG-based uplink signals that meet the NR-U requirements.
[0120]
In some embodiments, the physical layer signaling includes second indication information, where the second indication information is used to indicate the first channel access mode and/or the first starting position. The second indication information may directly or indirectly indicate the first channel access mode and/or the first starting position.
[0121]
For example, if the channel access mode supported by the terminal device includes only one channel access mode belonging to class 1 (that is, the channel access mode supported by the terminal device only includes one channel access mode for channel sharing), then The second indication information may also indirectly indicate the first channel access mode used for sending the uplink transmission on the first time-frequency resource by indicating that COT sharing (COT sharing) is used on the first time-frequency resource.
[0122]
For example, if the channel access mode supported by the UE only includes mode B but does not include other channel access modes belonging to class 1, in other words, the channel access mode that can be used by the UE to send a PUSCH on the first time-frequency resource only includes Including mode B but excluding other channel access modes belonging to class 1, the second indication information instructs the UE to use COT sharing on the first time-frequency resource, that is, it indicates that the UE uses the mode to send the PUSCH on the first time-frequency resource B.
[0123]
In some embodiments, the physical layer signaling includes second indication information, the second indication information is used to indicate the first starting position; and the third indication information contained in the physical layer signaling or other physical layer signaling The indication information indicates the first channel access mode.
[0124]
For example, the third indication information is sent through physical layer signaling. The second indication information and the third indication information may be signaled at the same physical layer, or may be signaled at different physical layers. The physical layer signaling may be cell-specific, group-common, or UE-specific; the physical layer signaling is, for example, information carried by DCI and/or sequence.
[0125]
In some embodiments, the second indication information indicates a first offset value of the first starting position relative to the second time position. The second time position may be within the time domain range of the one or more time domain resources; for example, the second time position is the start position of the first symbol of the first time domain resource, or, The second time position is the second starting position described below.
[0126]
In some embodiments, there is a corresponding relationship between the first channel access mode and the first starting position; the corresponding relationship is predefined or preconfigured or indicated by a network device. The second indication information may indicate the first channel access mode and/or the first starting position based on the corresponding relationship. For example, if a first channel access mode corresponds to a unique first starting position, the second indication information may indirectly indicate the first starting position by indicating the first channel access mode. If a first starting position corresponds to a unique first starting position the first channel access mode, the second indication information may indirectly indicate the first channel access mode by indicating the first starting position.
[0127]
For example, the first channel access mode and the first offset value may correspond, and the first channel access mode and the first starting position may be indicated by the second indication information.
[0128]
Table 2 is an example of the one-to-one correspondence between the first channel access mode and the first offset value, but the present application is not limited to the one-to-one correspondence, and other correspondences are also possible.
[0129]
Table 2
[0130]
[table 0002]
The first channel access method first offset value
way B 25us
way C 16us
way D 0us
[0131]
In Table 2, there is a one-to-one correspondence between the first channel access mode and the first offset value. Therefore, the second indication information may only include the indication information of the first channel access mode or the indication information of the first offset value. . Based on the corresponding relationship, the UE may determine the corresponding first offset value or the first channel access mode.
[0132]
For example, if the second indication information indicates mode B, the UE knows that the first offset value is 25us, and the UE can determine the first starting position according to the first offset value. Or, if the second indication information indicates that the first offset value is 25us, the UE knows that the first channel access mode is mode B.
[0133]
For another example, the first channel access mode and the set of first offset values ​​may correspond. Table 3 is an example of the one-to-one correspondence between the first channel access mode and the first offset value set, but the present application is not limited to the one-to-one correspondence, and other correspondences are also possible.
[0134]
table 3
[0135]
[table 0003]
The first channel access method first set of offset values
way B 25us，25us+TA
way C 16us, 16us + TA
way D 0us
[0136]
In Table 3, one first channel access mode corresponds to one first offset value set, and one first offset value corresponds to one first channel access mode. Therefore, the second indication information may only include indication information of the first channel access mode, and based on the corresponding relationship, the UE may determine the corresponding first offset value set, and further determine the first offset value according to the third indication information, At this time, the third indication information may indicate one first offset value in the corresponding first offset value set. Alternatively, the second indication information may only include indication information of the first offset value, so that, based on the corresponding relationship, the UE may determine the corresponding first channel access mode.
[0137]
The above example of the value of the first offset value may make the time interval between the uplink transmission and the previous transmission not greater than 25us, but the present application is not limited to this. Although the NR_U will support two or more uplink and downlink conversions included in one COT, according to the implementation of the base station, one cell can also support one COT including one uplink and downlink conversion. In a COT including an uplink and downlink conversion, the time interval requirement between adjacent transmissions can be more relaxed. Therefore, in order to increase network flexibility, the second offset value may also be greater than 25us. For example, assuming that the subcarrier spacing is 15 kHz, the value range of the first offset value is {16us, 25us, 34us, 43us, 52us, 61us, 1symbol}.
[0138]
In some embodiments, if the first time-frequency resource is within the channel occupation time including at least two uplink and downlink conversions, and the terminal device uses the first channel access mode to send the uplink signal on the first time-frequency resource, the The first offset value should make the time interval between the upstream transmission and the previous transmission meet the requirements. For example, assuming that the time interval should not be greater than 25us, the first offset value is not greater than 25us.
[0139]
For example, if the base station indicates that in the COT including two or more uplink and downlink conversions, the uplink transmission of the UE adopts the channel access mode of class 1, it needs to ensure that the first offset value is not greater than 25us.
[0140]
It is worth noting that the correspondence between the above first channel access mode and the first offset value or the first offset value set may be predefined or preconfigured, and may also be indicated by a network device (such as a base station), and the above It is described only as an example, and the present application is not limited thereto.
[0141]
In some embodiments, the terminal device may use the first channel access manner to send the uplink signal from the first starting position on the first time-frequency resource. The terminal device may also use the second channel access mode to send the uplink signal from the second starting position on the first time-frequency resource.
[0142]
In some embodiments, when the judgment condition is met, the terminal device uses the first channel access mode to send the uplink signal from the first starting position on one or more time-frequency resources; if the judgment condition is not met In the case of using the second channel access mode, the uplink signal is sent from the second starting position on one or more time-frequency resources, wherein the second starting position within the time domain range of the one or more time-frequency resources The location is predefined or preconfigured or indicated by network equipment (eg by higher layer signaling).
[0143]
In some embodiments, the judgment condition may include: whether the physical layer signaling is received no later than the first time position of the one or more time-frequency resources. The time interval between the first time position and the start position of the first time-frequency resource of the one or more time-frequency resources is not less than the preparation time of the uplink signal, or the first time-frequency resource The time interval between the time position and the second starting position is not less than the preparation time of the uplink signal. The embodiment of the present application is not limited to this, and other judgment conditions may also be used.
[0144]
9 is another schematic diagram of a method for sending an uplink signal according to an embodiment of the present application, which is described by taking the terminal device supporting at least one first channel access mode and at least one second channel access mode as an example. As shown in Figure 9, the method includes:
[0145]
901. The terminal device receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0146]
902. Determine whether physical layer signaling is received before the first time position, where the physical layer signaling is used to indicate a first start time within the time domain range of one or more time-frequency resources in the at least one time-frequency resource. Start position; if so, execute 903, otherwise execute 904;
[0147]
903. Use the first channel access mode to send the uplink signal from the first starting position on the one or more time-frequency resources;
[0148]
904. Use the second channel access mode to send the uplink signal from the second starting position on the one or more time-frequency resources, wherein the first position within the time domain range of the one or more time-frequency resources The two starting locations are predefined or preconfigured or indicated by network equipment (eg, by higher layer signaling and/or physical layer signaling).
[0149]
For example, the indication information for indicating the second starting position may be included in the RRC message including the above-mentioned first indication information. For another example, in the case of semi-persistent scheduling, indication information for indicating the second starting position may be included in the physical layer signaling including the above-mentioned first indication information.
[0150]
It is worth noting that the above FIG. 9 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 9 .
[0151]
In some embodiments, the second starting location is predefined or preconfigured.
[0152]
For example, the UE selects a second offset value from a predefined set of second offset values, so that the second starting position can be determined according to the selected second offset value. The second offset value may be an offset value relative to the start position of the first symbol of the first time-frequency resource.
[0153]
In some embodiments, the second starting position is indicated by the network device through fourth indication information; the fourth indication information is used to indicate the first position of the second starting position relative to the one or more time-frequency resources. The second offset value of the starting position of a symbol, or a set of second offset values ​​indicating the second offset value.
[0154]
For example, the fourth indication information may indicate a second offset value, and the UE may determine the second starting position according to the second offset value; or, the fourth indication information may indicate a second offset value set, and the UE may One second offset value is selected from the second offset value set, so that the second starting position can be determined according to the selected second offset value.
[0155]
The channel access manner and starting position of the present application have been schematically described above, and the subcarrier spacing will be described below.
[0156]
In some embodiments, the sub-carrier spacing (SCS) of the one or more time-frequency resources is one of at least two sub-carrier spacings, and the terminal device further determines the sub-carrier spacing (SCS) of the one or more time-frequency resources according to the The carrier spacing determines the first starting position and/or the second starting position.
[0157]
In some embodiments, at least two types of subcarrier spacings correspond to different first starting positions, and/or at least two types of subcarrier spacings correspond to different second starting positions.
[0158]
For example, the first offset value and the second offset value may be characterized by the number of symbols and/or the length of time, eg, 1symbol, 1symbol+Xus, Yus. More than one SCS may be supported in NR_U, for example, 15kHz, 30kHz, 60kHz, 120kHz, etc. The time length of one symbol of different SCSs is different. In order to meet the same time interval requirement, the first offset value or the second offset value required by different SCSs may be different.
[0159]
In some embodiments, at least two types of subcarrier spacings correspond to different first offset values, and/or at least two types of subcarrier spacings correspond to different second offset values.
[0160]
Take the second offset value as an example. The value range of the second offset value corresponding to different subcarrier intervals may be different, and the value range may be predefined; for example, Example 1 and Example 2.
[0161]
Example 1:
[0162]
[table 0004]
SCS The value range of the second offset value
15kHz {16us,25us,34us,43us,52us,61us,1symbol}
30kHz {16us,25us,34us,43us,52us,61us,2symbols}
60kHz {16us,25us,34us,43us,52us,61us,4symbols}
[0163]
Example 2:
[0164]
[table 0005]
SCS The value range of the second offset value
15kHz {16us,25us,34us,43us,52us,61us,1symbol}
30kHz {16us,25us,1symbol}
[0165]
For another example, if the second offset value or the second offset value set is indicated by the fourth indication information, in order to save signaling overhead, the fourth indication information may be based on the correspondence between the subcarrier interval and the range of the second offset value. relationship to indicate a second offset value or a second set of offset values. After receiving the fourth indication information, the UE may determine the second offset value or the second offset value set indicated by the fourth indication information according to the subcarrier interval of the first time-frequency resource. For example Example 3 and Example 4.
[0166]
Example 3:
[0167]

[0168]
According to Example 3, if the information bits included in the fourth indication information received by the UE are 110, then if the subcarrier spacing of the first time-frequency resource is 15 kHz, the second offset value is 1symbol. The subcarrier spacing is 30kHz, and the second offset value is 2symbol.
[0169]
Example 4:
[0170]

[0171]
According to Example 4, if the information bit included in the fourth indication information received by the UE is 010, then if the subcarrier spacing of the first time-frequency resource is 15kHz, the second offset value is 34us, if the first time-frequency resource The subcarrier spacing is 30kHz, and the second offset value is 1symbol.
[0172]
In some embodiments, at least two types of subcarrier spacings correspond to different sets of first offset values, and/or at least two types of subcarrier spacings correspond to different sets of second offset values.
[0173]
Take the second offset value set as an example. For example Example 5 and Example 6.
[0174]
Example 5:
[0175]

[0176]
According to Example 5, if the information bit included in the fourth indication information received by the UE is 1110001, and if the subcarrier spacing of the first time-frequency resource is 15 kHz, the set of second offset values ​​is {16us, 25us, 34us , 1symbol}, if the subcarrier spacing of the first time-frequency resource is 30 kHz, the set of second offset values ​​is {16us, 25us, 34us, 2symbol}.
[0177]
Example 6:
[0178]

[0179]
According to Example 6, if the information bits included in the fourth indication information received by the UE are 1110001, and if the subcarrier spacing of the first time-frequency resource is 15 kHz, the set of second offset values ​​is {16us, 25us, 34us , 1symbol}, if the subcarrier spacing of the first time-frequency resource is 30 kHz, the set of second offset values ​​is {16us, 25us, 34us}.
[0180]
In some embodiments, the reference subcarrier spacing corresponds to a first offset value, or the reference subcarrier spacing corresponds to the set of first offset values; and/or; the reference subcarrier spacing corresponds to The second offset value, alternatively, the reference subcarrier spacing corresponds to the set of second offset values.
[0181]
Take the second offset value as an example. The fourth indication information indicates the first offset value or the first offset value set based on a reference subcarrier interval, and the reference subcarrier interval may be predefined or indicated by the base station. The UE determines the second offset value or the second offset value set according to the subcarrier spacing of the first time-frequency resource. For example Example 7 and Example 8.
[0182]
Example 7:
[0183]

[0184]
According to Example 7, if the information bits included in the fourth indication information received by the UE are 110, then if the subcarrier spacing of the first time-frequency resource is 15 kHz, the second offset value is 1symbol, and if the The subcarrier spacing is 30kHz, and the second offset value is 2symbol.
[0185]
Example 8:
[0186]

[0187]
According to Example 8, if the information bits included in the fourth indication information received by the UE are 1110001, then if the subcarrier spacing of the first time-frequency resource is 15 kHz, the set of second offset values ​​is {16us, 25us, 34us, 1symbol}, if the subcarrier spacing of the first time-frequency resource is 30 kHz, the set of second offset values ​​is {16us, 25us, 34us, 2symbol}.
[0188]
The influence of the subcarrier spacing on the starting position has been schematically described above, and the generation of the uplink signal will be described below.
[0189]
In some embodiments, the terminal device generates the uplink signal according to the subcarrier interval of the first time-frequency resource and/or the adopted channel access mode.
[0190]
For example, suppose that 1 represents the symbol index in a subframe, which is the number of symbols in a subframe, where is the number of symbols in one slot, and is the number of slots in one subframe corresponding to one subcarrier interval. E.g,
[0191]
Table 4
[0192]

[0193]
and are the symbol length and CP length corresponding to symbol l respectively, taking NCP as an example,
[0194]

[0195]

[0196]
In some embodiments, the terminal device determines, according to the subcarrier spacing of the one or more time-frequency resources, the first symbol capable of transmitting the uplink signal in the one or more time-frequency resources and the first symbol of the uplink signal. The starting position of the portion of a symbol that can transmit the upstream signal.
[0197]
For example, the first offset value and the second offset value may be represented by the number of symbols and/or the time length. If the first offset value or the second offset value is represented by the time length, the UE may The SCS determines the first starting position or the second starting position, or, in other words, determines the first symbol that can be sent in the first time-frequency resource and the length that can be sent in the first symbol (and/or the first symbol starting position of the part of the symbol that can be sent).
[0198]
Assuming that the symbol l 0 is the first symbol of the first time-frequency resource, the first offset value or the second offset value is represented by the time length, expressed as t offset , then the first time-frequency resource that can be sent in the first time-frequency resource The starting position of the symbol l start and the part that can be sent in the symbol l start (represented as an offset value relative to the starting position of the first symbol l start ) is, for example,
[0199]

[0200]

[0201]
where, represents the reference symbol length corresponding to the SCS of the first time-frequency resource, for example,
[0202]

[0203]
On the other hand, if the first offset value or the second offset value is indicated based on a reference SCS, and the first offset value is represented by the number of symbols, or the number of symbols and the time length, the UE needs to use the reference subcarrier spacing and Determining the subcarrier spacing of the first time-frequency resource l start and/or
[0204]
Assuming that the reference subcarrier spacing is μ 0 , for example, the first offset value or the second offset value is represented by the number of symbols, N offset , then
[0205]

[0206]

[0207]
For another example, the first offset value or the second offset value is characterized by the number of symbols and the time length N offset +t offset , then
[0208]

[0209]

[0210]
According to the signal corresponding to the symbol l start , for example,
[0211]

[0212]
or,
[0213]

[0214]
Wherein, whether to adopt the first offset value or the second offset value is as described above.
[0215]
The resource mapping is described below by taking the CG PUSCH as an example.
[0216]
In some embodiments, the terminal device maps the first uplink information according to at least one or any combination of the following information: the subcarrier spacing of the one or more time-frequency resources, the adopted channel access mode, and the indication for mapping Indication information of the symbol position of the first uplink information. The terminal device may map the first uplink information to one or more complete symbols in the time-frequency resource, and the complete symbols can use the entire time for transmitting the uplink signal.
[0217]
For example, if the first uplink transmission is CG PUSCH, the first uplink transmission may need to carry UCI (eg CG-UCI), and the UCI (first uplink information) can be used to indicate the HARQ (process) ID corresponding to the uplink transmission, NDI , RV, etc., are crucial for the base station to correctly receive the uplink transmission; the present application is not limited thereto. For another example, the first uplink information may also be other UCI, for example, carrying at least one of the following: SR, HARQ-ACK, CSI, and so on.
[0218]
On the one hand, as described above, in order to ensure an appropriate time interval between the first uplink transmission and the last transmission, the first part of the symbols in the first time-frequency resource may not transmit signals or may not transmit signals completely. On the other hand, if the next transmission of the first uplink transmission can continue to share the same COT transmission, in order to ensure an appropriate time interval between the first uplink transmission and the next transmission, the latter part of the symbols in the first time-frequency resource It may also not be sent or not sent in its entirety. In order to enable the base station to receive the UCI correctly, it is necessary to avoid mapping the above-mentioned UCI to a symbol that cannot be sent or cannot be completely sent in the first time-frequency resource.
[0219]
FIG. 10 is an example diagram of a first time-frequency resource according to an embodiment of the present application. For example, as shown in FIG. 10 , it is assumed that the first symbol of the first time-frequency resource is 0 and the last symbol is 8, wherein the first N1=2 symbols and the last N2=2 symbols do not transmit signals or transmit signals incompletely , UCI can be mapped on symbol 2 to symbol 6.
[0220]
In some embodiments, for at least two subcarrier spacings and/or at least two channel access modes, the positions of symbols to which the first uplink information is mapped in the time-frequency resources are at least partially different.
[0221]
For example, since the lengths of symbols corresponding to different SCSs are different, the number of symbols corresponding to different SCSs that do not transmit signals or cannot completely transmit signals may be different. Therefore, the symbol positions that can be used to map UCI may be different for different SCSs.
[0222]
In some embodiments, the symbol position in the time-frequency resource to which the first uplink information is mapped is predefined or preconfigured or indicated by a network device.
[0223]
For example, the symbol positions in the first time-frequency resource that can be used for mapping UCI may be predefined or preconfigured or indicated by the base station, or the symbol positions in the first time-frequency resource that cannot be used for mapping UCI may be predefined or pre-configured or indicated by the base station.
[0224]
For example, for different SCSs, the symbol positions that can be used to map UCI can be predefined or preconfigured respectively. Specifically, the number of symbols that cannot be used for mapping UCI is predefined for different SCSs, for example, as shown in Table 5 below.
[0225]
table 5
[0226]
[table 0006]
SCS N1 N2
15kHz 1 1
30kHz 2 2
[0227]
For another example, if the value ranges of the first/second offset values ​​corresponding to different SCSs are predefined or preconfigured respectively, the number of symbols that cannot be used for mapping UCI may be different from the predefined first/second offset values. The value range corresponds to. For example, if the subcarrier spacing is 15 kHz, the value range of the first offset value is predefined as {16us, 25us, 34us, 43us, 52us, 61us, 1symbol}, and if the subcarrier spacing is 30 kHz, the first offset value is The value range is predefined as {16us, 25us, 34us, 43us, 52us, 61us, 2symbol}, then for 15kHz, the first 1 symbol is not used for mapping UCI, and for 30kHz, the first 2 symbols are not used for mapping UCI.
[0228]
For another example, the value range of the first/second offset value is predefined or preconfigured based on a reference subcarrier spacing, for example, the reference subcarrier spacing is 15 kHz, and the value range of the first offset value is predefined as { 16us, 25us, 34us, 43us, 52us, 61us, 1symbol}, then for 15kHz, the first 1 symbol is not used for mapping UCI, and for 30kHz, the first 2 symbols are not used for mapping UCI.
[0229]
In this way, the UE can map the UCI on the symbol that can be used for mapping the UCI in the first time-frequency resource according to the subcarrier interval of the first time-frequency resource.
[0230]
For the case of direct indication by the base station, for different SCSs, the symbol positions that can be used to map the UCI can be indicated respectively. For example, the values ​​of the above N1 and/or N2 are indicated. Alternatively, the symbol positions that can be used to map the UCI are indicated based on a reference subcarrier spacing.
[0231]
For the case of indirect indication by the base station, the base station may indirectly indicate the symbol positions that can be used for mapping the UCI by indicating the first/second offset value set. The relationship between the indicated set of first/second offset values ​​and the symbol positions that can be used to map UCI and the range of the above-defined first/second offset values ​​and the symbol positions that can be used to map UCI The relationship is similar.
[0232]
Alternatively, the base station may indirectly indicate the symbol positions that can be used to map the UCI by indicating the first/second offset value. For example, if the indicated first offset value is 43us, if the subcarrier spacing of the first time-frequency resource is 15kHz, the first 1 symbol is not used for mapping UCI, and if the subcarrier spacing is 30kHz, the first 2 symbols are not used for mapping UCI. (Similar to the method in signal generation, the first completely transmitted symbol in the first time-frequency resource can be determined.
[0233]
In some embodiments, as mentioned above, class 1 and class 2 have different requirements on the time interval between adjacent transmissions, and class 1 and class 2 may also correspond to different symbol positions that can be used to map UCI. In addition, different channel access modes in class 1 may have different requirements on the time interval between adjacent transmissions. Therefore, the symbol positions that can be used to map UCI corresponding to different channel access modes may be different.
[0234]
For example, the symbol position corresponding to the first channel access mode that can be used to map the UCI, for example, is determined according to the predefined first offset value range or the indicated first offset value or the first offset value set . The symbol position that can be used to map the UCI corresponding to the second channel access mode is determined according to, for example, a predefined second offset value range or an indicated second offset value or a second offset value set.
[0235]
In this case, the UE may need to determine a symbol position in the first time-frequency resource that can be used to map the UCI according to the channel access mode adopted for the first uplink transmission. For example, if the second channel access mode is adopted, the symbol position in the first time-frequency resource that can be used to map UCI is the symbol position corresponding to the second channel access mode that can be used to map UCI. If the second indication information indicates that the first channel access mode is used, the symbol position in the first time-frequency resource that can be used to map UCI is the symbol position corresponding to the first channel access mode that can be used to map UCI.
[0236]
For another example, since the UE needs to receive the second indication information, the UCI is further mapped to an appropriate symbol position. In order for the UE to have enough time to prepare the PUSCH, the physical layer signaling for sending the corresponding first indication information should be sent before a certain time length of the first time-frequency resource.
[0237]
That is, for the UE, the UE receives the physical layer signaling before the first time position, and there is a certain time interval between the first time position and the start position of the first symbol of the first time-frequency resource. The time interval should not be less than the time required by the UE to prepare the PUSCH. If the UE does not receive the physical layer signaling, it maps the UCI according to the symbol position corresponding to the second channel access mode that can be used to map the UCI; if it receives the physical layer signaling, it maps the UCI according to the first channel access mode. The symbol positions that can be used to map UCI are mapped to UCI.
[0238]
In some embodiments, the uplink signal further carries second uplink information, where the second uplink information is used to indicate an end position of the uplink signal.
[0239]
In some embodiments, for at least two subcarrier intervals, the end positions of the uplink signals indicated by the second uplink information are different.
[0240]
For example, in order to enable the base station to use COT sharing to send downlink transmission after the first uplink transmission, the UCI may further include indication information for indicating the end position of the first uplink transmission. In order to save signaling overhead, the same indication information may indicate different end positions for different SCSs. For example, as shown in Table 6 below,
[0241]
Table 6
[0242]

[0243]
Correspondingly, after receiving the UCI, the base station needs to determine the end position of the first uplink transmission according to the subcarrier interval of the first time-frequency resource.
[0244]
The above embodiments merely illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be combined.
[0245]
It can be seen from the above embodiment that the first starting position in the time domain range of one or more time-frequency resources of semi-static configuration or semi-persistent scheduling is indicated by physical layer signaling, and the uplink signal is sent using the first starting position, which can support Transmission and reception of CG-based uplink signals that meet NR-U requirements, or transmission and reception of other uplink signals on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0246]
Embodiments of the Second Aspect
[0247]
An embodiment of the present application provides a method for sending an uplink signal, which is described from the side of a terminal device. The embodiments of the present application may be combined with the embodiments of the first aspect, or may be implemented independently, and the same content as the embodiments of the first aspect will not be repeated.
[0248]
FIG. 11 is a schematic diagram of a method for sending an uplink signal according to an embodiment of the present application. As shown in FIG. 11 , the method includes:
[0249]
1101, the terminal device generates an uplink signal,
[0250]
1102: The terminal device sends the uplink signal on a semi-statically configured or semi-persistently scheduled time-frequency resource without receiving the corresponding dynamic indication information for indicating the uplink and downlink configuration, and the time-frequency resource Include at least one symbol that is predefined or semi-statically configured to be flexible.
[0251]
It should be noted that the above FIG. 11 only schematically illustrates the embodiment of the present application, but the present application is not limited thereto. For example, the execution order of the various operations can be adjusted appropriately, and other operations can be added or some of the operations can be reduced. Those skilled in the art can make appropriate modifications according to the above content, and are not limited to the description of the above-mentioned FIG. 11 .
[0252]
Compared with LTE, NR supports more flexible uplink and downlink configurations. The uplink and downlink configuration may be semi-statically configured and/or dynamically configured. Among them, the dynamic configuration is indicated by DCI format 2-0. In NR, the UE needs to determine whether the uplink transmission can be sent in a semi-statically configured or semi-persistently scheduled time-frequency resource according to the uplink and downlink configuration.
[0253]
For example, if the base station configures the UE to monitor the PDCCH to receive DCI format 2_0, for a semi-static configuration or semi-persistently scheduled time-frequency resource that includes at least one symbol semi-statically configured as Flexible, if the UE does not receive DCI format 2_0 indicating that the If the symbol is uplink, the UE cannot send uplink transmission on this time-frequency resource. This is mainly to avoid interference with other devices.
[0254]
The UE does not receive DCI format 2_0 indicating that the symbol is uplink, which can be divided into two types: the corresponding DCI format 2_0 is not received; the corresponding DCI format 2_0 is received, but the symbol is not indicated as uplink, for example, the symbol is indicated as D/F, or no configuration is indicated for this symbol.
[0255]
FIG. 12 is an example diagram of the uplink and downlink configuration of NR. As shown in FIG. 12 , for example, the cell-common uplink and downlink configuration information (tdd-UL-DL-ConfigurationCommon) and/or the device-specific uplink and downlink configuration information (tdd-UL- DL-ConfigurationDedicated), resources can be configured as uplink (UL), downlink (DL) or flexible (F), and then through dynamic signaling (DCI format 2_0), flexible (F) can be further configured as uplink (UL) or Downlink (DL).
[0256]
As shown in Figure 12, if the first 5 time units (which are semi-statically configured as DDFFF) do not receive the corresponding dynamic signaling (DCI format 2_0) ( represented ), the uplink transmission configured by the higher layer signaling cannot be Send on F. The last 5 time units (configured as FFFUU semi-statically) have received the corresponding dynamic signaling (DCI format 2_0) (represented by □ in Figure 12), and are further configured as DDUUU, then the uplink transmission configured by high-level signaling to be sent on U.
[0257]
In the unlicensed frequency band, flexible uplink and downlink configuration can make the base station and UE have more channel access opportunities, so the base station may only use dynamic configuration, or semi-statically configure more flexible symbols, which leads to all or Most semi-statically configured or semi-persistently scheduled time-frequency resources include Flexible symbols.
[0258]
However, the base station may not be able to send the PDCCH carrying the DCI format 2_0 due to channel access failure, and the UE will not be able to receive the DCI format 2_0. According to the solution in the NR, the UE will not be able to send the above uplink transmission. That is to say, whether the UE can send uplink transmission not based on dynamic scheduling is still limited by the dynamic indication of the base station, which causes the efficiency of uplink transmission to decrease and the delay may increase.
[0259]
In the embodiments of the present application, for example, considering that channel detection can avoid interference to other devices to a certain extent, in order to improve the efficiency of uplink transmission and reduce the delay. The UE can be allowed to include the semi-static configuration as Flexible without receiving the corresponding dynamic indication information for indicating the uplink and downlink configuration (for example, it can be DCI format 2_0, or another newly defined DCI format). The semi-statically configured or semi-persistently scheduled time-frequency resources of symbols are sent for uplink transmission.
[0260]
FIG. 13 is an example diagram of the uplink and downlink configuration of the embodiment of the present application. As shown in FIG. 13 , for example, in the case where the corresponding DCI format 2_0 is not received ( represented ), it is pre-defined or semi-static On the time unit configured as flexible (F), the UE can send uplink signals.
[0261]
It is worth noting that Figures 12 and 13 are only schematic illustrations, and the time units corresponding to UL, DL, and F in Figure 12 or Figure 13 may be several time slots, multiple symbols, or other time lengths , which does not strictly correspond to a time slot.
[0262]
In addition, semi-static configuration information such as tdd-UL-DL-ConfigurationCommon and/or device-specific uplink and downlink configuration information (tdd-UL-DL-ConfigurationDedicated, and dynamic signaling DCI format 2_0 in Figures 12 and 13 are only implemented in this application. For example, but the present application is not limited to this, it may also be other semi-static configuration information and/or dynamic signaling, or newly defined semi-static configuration information and/or dynamic signaling.
[0263]
In some embodiments, whether to allow the terminal device to send the data on one or more symbols that are predefined or semi-statically configured to be flexible without receiving the corresponding dynamic indication information for indicating the uplink and downlink configuration. The above uplink signal is predefined or preconfigured or indicated by the network device (for example, configured by higher layer signaling).
[0264]
In some embodiments, whether to allow the terminal device to send the data on one or more symbols that are predefined or semi-statically configured to be flexible without receiving the corresponding dynamic indication information for indicating the uplink and downlink configuration. The uplink signal is predefined or preconfigured for the type of the uplink signal, or indicated by the network device (for example, configured by high-layer signaling).
[0265]
If the terminal device is allowed to send uplink signals on one or more symbols that are predefined or semi-statically configured as flexible, assuming that the first time-frequency resource includes symbols semi-statically configured as Flexible, in the case that DCI format 2_0 is not received , the UE may send the first uplink transmission on the first time-frequency resource. For example, the uplink transmission is sent from the second starting position on the first time-frequency resource using the second channel access mode. For another example, the UE may perform uplink transmission on the first time-frequency resource according to the embodiment of the first aspect.
[0266]
Alternatively, it is assumed that the first DCI includes at least second indication information, and the second DCI at least includes indication information for dynamically indicating uplink and downlink configurations. If the UE receives the first DCI and does not receive the second DCI indicating that the Flexible symbol is uplink, the UE may perform uplink transmission on the first time-frequency resource according to the embodiment of the first aspect.
[0267]
The above embodiments merely illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be combined.
[0268]
It can be seen from the above embodiments that the terminal device can send uplink signals on the semi-statically configured or semi-persistently scheduled time-frequency resources without receiving the corresponding dynamic indication information for indicating the uplink and downlink configuration, the time-frequency The resource includes at least one symbol that is pre-defined or semi-statically configured to be flexible, thereby being able to support the transmission and reception of CG-based uplink signals that meet NR-U requirements, or other time-frequency in semi-statically configured or semi-persistent scheduling Transmission and reception of uplink signals on resources.
[0269]
Embodiments of the third aspect
[0270]
An embodiment of the present application provides a method for receiving an uplink signal, which is described from the side of a network device. The embodiments of the present application correspond to the embodiments of the first aspect and/or the second aspect, and the same content as the embodiments of the first aspect and/or the second aspect will not be repeated.
[0271]
FIG. 14 is a schematic diagram of a method for receiving an uplink signal according to an embodiment of the present application. As shown in FIG. 14 , the method includes:
[0272]
1401. The network device sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0273]
1402. The network device sends physical layer signaling, where the physical layer signaling is used to indicate a first starting position, where the first starting position is within one or more time-frequency resources of the at least one time-frequency resource. in the time domain; and
[0274]
1403. The network device receives an uplink signal, where the uplink signal is sent by the terminal device from the first starting position on the one or more time-frequency resources.
[0275]
In some embodiments, the uplink signal is sent by the terminal device from the first starting position on the one or more time-frequency resources using a first channel access manner.
[0276]
In some embodiments, there is a corresponding relationship between the first channel access mode and the first starting position; the corresponding relationship is predefined or preconfigured or indicated by a network device.
[0277]
In some embodiments, the physical layer signaling includes second indication information, where the second indication information is used to indicate the first channel access mode and/or the first starting position.
[0278]
In some embodiments, the physical layer signaling includes second indication information, the second indication information indicates the first starting position; and is comprised by the physical layer signaling or other physical layer signaling. The third indication information indicates the first channel access mode.
[0279]
In some embodiments, the second indication information indicates a first offset value of the first starting position relative to the second time position. The second time position may be within the time domain range of the one or more time domain resources; for example, the second time position is the start position of the first symbol of the one or more time domain resources , or, the second time position is a second starting position.
[0280]
In some embodiments, the first channel access mode corresponds to the first offset value, or the first channel access mode of the uplink signal corresponds to the set of first offset values.
[0281]
In some embodiments, the subcarrier spacing (SCS) of the one or more time-frequency resources is one of at least two subcarrier spacings, and the first starting position is further based on the one or more time-frequency resources The subcarrier spacing is determined.
[0282]
In some embodiments, the uplink signal carries first uplink information; the first uplink information is mapped to one or more complete symbols in the time-frequency resource, and the complete symbols can use the entire time for sending the uplink signal.
[0283]
In some embodiments, the uplink signal further carries second uplink information, and the second uplink information is used to indicate the end position of the uplink signal; the network device further determines the The end position of the upstream signal.
[0284]
In some embodiments, the uplink signal is further performed by the terminal device on one or more time-frequency resources in the at least one time-frequency resource, from the first time-frequency resource within the time domain range of the one or more time-frequency resources. The second starting position starts to send; wherein, the second starting position is predefined or preconfigured or indicated by the network device.
[0285]
In some embodiments, the fourth indication information is used to indicate a second offset value of the second starting position relative to the first symbol of the one or more time-frequency resources, or to indicate the second offset A collection of shift values.
[0286]
In some embodiments, the uplink signal is used by the terminal device in one or more time-frequency resources in the at least one time-frequency resource using the first channel access mode and the first starting position under the condition that the judgment condition is satisfied. The first starting position within the time domain range of the one or more time-frequency resources is indicated by physical layer signaling.
[0287]
In some embodiments, the uplink signal is located on the one or more time-frequency resources by the terminal device using a second channel access mode and a second starting position under the condition that the judgment condition is not satisfied. sending, wherein the second starting position within the time domain range of the one or more time-frequency resources is predefined or preconfigured or indicated by higher layer signaling.
[0288]
In some embodiments, the uplink signal is sent by the terminal device on one or more symbols that are configured to be flexible in a semi-statically configured or semi-persistently scheduled time-frequency resource.
[0289]
The above embodiments merely illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be combined.
[0290]
It can be seen from the above embodiment that the first starting position in the time domain range of one or more time-frequency resources of semi-static configuration or semi-persistent scheduling is indicated by physical layer signaling, and the uplink signal is sent using the first starting position, which can support Transmission and reception of CG-based uplink signals that meet NR-U requirements, or transmission and reception of other uplink signals on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0291]
Embodiments of the fourth aspect
[0292]
An embodiment of the present application provides an apparatus for sending an uplink signal. The apparatus may be, for example, a terminal device, or may be one or some components or components configured in the terminal device. The contents of the embodiments of the present application that are the same as those of the embodiments of the first aspect and/or the second aspect will not be repeated.
[0293]
FIG. 15 is a schematic diagram of an apparatus for sending an uplink signal according to an embodiment of the present application. As shown in FIG. 15 , the apparatus 1500 for sending an uplink signal includes:
[0294]
an information receiving unit 1501, which receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0295]
a signaling receiving unit 1502, which receives physical layer signaling, where the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; as well as
[0296]
A signal sending unit 1503, which sends an uplink signal from the first starting position on the one or more time-frequency resources.
[0297]
In some embodiments, the signal sending unit 1503 uses a first channel access manner to send the uplink signal on the one or more time-frequency resources from the first starting position.
[0298]
In some embodiments, the signal sending unit 1502 sends the uplink signal on the one or more time-frequency resources by using the first channel access mode and the first starting position under the condition that the judgment condition is satisfied; In the case where the judgment condition is not satisfied, the uplink signal is sent on the one or more time-frequency resources using the second channel access mode and the second starting position, wherein the one or more time-frequency resources The second starting position within the time domain of is predefined or preconfigured or indicated by the network device.
[0299]
In some embodiments, the judgment condition includes whether the physical layer signaling is received no later than a first time position of the one or more time-frequency resources.
[0300]
In some embodiments, the time interval between the first time position and the start position of the first time-frequency resource of the one or more time-frequency resources is not less than the preparation time of the uplink signal, or, The time interval between the first time position and the second start position is not less than the preparation time of the uplink signal.
[0301]
In some embodiments, the uplink signal includes at least one of the following signals or channels: Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH), Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS) ).
[0302]
In some embodiments, the first channel access mode is a channel access mode for channel sharing, and the second channel access mode is a channel access mode for initializing a occupied channel.
[0303]
In some embodiments, the first channel access mode and/or the second channel access mode belong to at least one channel access mode supported by the terminal device; the at least one channel access mode supported by the terminal device The mode is predefined or preconfigured or indicated by the network device.
[0304]
In some embodiments, there is a corresponding relationship between the first channel access mode and the first starting position; the corresponding relationship is predefined or preconfigured or indicated by a network device.
[0305]
In some embodiments, the physical layer signaling includes second indication information;
[0306]
The second indication information is used to indicate the first channel access mode and/or the first starting position; or, the second indication information indicates the first starting position, and is included in the physical The third indication information in the layer signaling or other physical layer signaling indicates the first channel access mode.
[0307]
In some embodiments, the second indication information indicates a first offset value of the first starting position relative to the second time position.
[0308]
In some embodiments, the second temporal location is within a temporal extent of the one or more temporal resources.
[0309]
In some embodiments, the second time position is the start position of the first symbol of the one or more time domain resources, or the second time position is the second start position.
[0310]
In some embodiments, the first channel access mode corresponds to the first offset value, or the first channel access mode of the uplink signal corresponds to the set of first offset values.
[0311]
In some embodiments, the second starting position is indicated by the network device through fourth indication information, where the fourth indication information is used to indicate that the second starting position is relative to the one or more time-frequency The second offset value of the starting position of the first symbol of the resource, or a set used to indicate the second offset value.
[0312]
In some embodiments, the subcarrier spacing of the one or more time-frequency resources is one of at least two subcarrier spacings, and the signal sending unit 1503 further determines according to the subcarrier spacing of the one or more time-frequency resources the first starting position.
[0313]
In some embodiments, at least two of the subcarrier spacings correspond to different first starting positions, and/or, at least two kinds of the subcarrier spacings correspond to different second starting positions.
[0314]
In some embodiments, as shown in FIG. 15 , the apparatus 1500 for sending an uplink signal further includes:
[0315]
A signal generating unit 1504, which generates the uplink signal according to the subcarrier spacing of the one or more time-frequency resources and/or the adopted channel access mode.
[0316]
In some embodiments, the signal generating unit 1504 is further configured to determine, according to the subcarrier spacing of the one or more time-frequency resources, the first one that can send the uplink signal in the one or more time-frequency resources symbol and the starting position of the part of the first symbol that can transmit the uplink signal.
[0317]
In some embodiments, as shown in FIG. 15 , the apparatus 1500 for sending an uplink signal further includes:
[0318]
A signal mapping unit 1505, which maps the first uplink information according to the subcarrier spacing of the one or more time-frequency resources and/or the adopted channel access mode.
[0319]
In some embodiments, the signal mapping unit 1505 is further configured to map the first uplink information to one or more complete symbols in the one or more time-frequency resources, where the complete symbols can for sending the uplink signal.
[0320]
In some embodiments, the uplink signal further carries second uplink information, where the second uplink information is used to indicate an end position of the uplink signal.
[0321]
In some embodiments, the signal sending unit 1503 is further configured to send the uplink signal on one or more symbols configured to be flexible in one or more time-frequency resources of semi-static configuration or semi-persistent scheduling.
[0322]
In some embodiments, the signal sending unit 1503 is further configured to configure flexible uplink and downlink configuration information through cell general uplink and downlink configuration information and/or device-specific uplink and downlink configuration information without receiving dynamic indication information for uplink and downlink configuration. The uplink signal is sent on one or more symbols.
[0323]
It is worth noting that the above only describes each component or module related to the present application, but the present application is not limited thereto. The apparatus 1500 for sending an uplink signal may further include other components or modules. For the specific content of these components or modules, reference may be made to the related art.
[0324]
In addition, for the sake of simplicity, FIG. 15 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above-mentioned components or modules may be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc. The implementation of this application does not limit this.
[0325]
The above embodiments merely illustrate the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications can also be made on the basis of the above embodiments. For example, each of the above-described embodiments may be used alone, or one or more of the above-described embodiments may be combined.
[0326]
It can be seen from the above embodiment that the first starting position in the time domain range of one or more time-frequency resources of semi-static configuration or semi-persistent scheduling is indicated by physical layer signaling, and the uplink signal is sent using the first starting position, which can support Transmission and reception of CG-based uplink signals that meet NR-U requirements, or transmission and reception of other uplink signals on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0327]
Embodiments of the Fifth Aspect
[0328]
An embodiment of the present application provides an apparatus for receiving an uplink signal. The apparatus may be, for example, a network device, or may be one or some components or components configured in the network device. The contents of the embodiments of the present application that are the same as those of the embodiments of the first aspect to the third aspect will not be repeated.
[0329]
FIG. 16 is another schematic diagram of an apparatus for indicating control information according to an embodiment of the present application. As shown in FIG. 16 , an apparatus 1600 for receiving an uplink signal includes:
[0330]
an information sending unit 1601, which sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0331]
a signaling sending unit 1602, which sends physical layer signaling, where the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; as well as
[0332]
A signal receiving unit 1603, which receives an uplink signal, where the uplink signal is sent from the first starting position on the one or more time-frequency resources.
[0333]
It is worth noting that the above only describes each component or module related to the present application, but the present application is not limited thereto. The apparatus 1600 for receiving an uplink signal may further include other components or modules. For the specific content of these components or modules, reference may be made to the related art.
[0334]
In addition, for the sake of simplicity, FIG. 16 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The foregoing components or modules may be implemented by hardware facilities such as processors, memories, transmitters, and receivers, which are not limited in this embodiment of the present application.
[0335]
It can be seen from the above embodiment that the first starting position in the time domain range of one or more time-frequency resources of semi-static configuration or semi-persistent scheduling is indicated by physical layer signaling, and the uplink signal is sent using the first starting position, which can support Transmission and reception of CG-based uplink signals that meet NR-U requirements, or transmission and reception of other uplink signals on semi-statically configured or semi-persistently scheduled time-frequency resources.
[0336]
Embodiments of the sixth aspect
[0337]
An embodiment of the present application further provides a communication system, and reference may be made to FIG. 1 , and the same content as the embodiments of the first aspect to the fifth aspect will not be repeated.
[0338]
In some embodiments, the communication system 100 may include:
[0339]
The terminal device 102 receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; and receives physical layer signaling, where the physical layer signaling is used to indicate that in a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and sending an uplink signal from the first starting position on the one or more time-frequency resources ;
[0340]
A network device 101, which sends the first indication information and the physical layer signaling, and receives the uplink signal.
[0341]
The embodiment of the present application also provides a network device, which may be, for example, a base station, but the present application is not limited to this, and may also be other network devices.
[0342]
FIG. 17 is a schematic structural diagram of a network device according to an embodiment of the present application. As shown in FIG. 17 , the network device 1700 may include: a processor 1710 (eg, a central processing unit CPU) and a memory 1720 ; the memory 1720 is coupled to the processor 1710 . The memory 1720 can store various data; in addition, the program 1730 for information processing is also stored, and the program 1730 is executed under the control of the processor 1710 .
[0343]
For example, the processor 1710 may be configured to execute a program to implement the method for receiving an uplink signal according to the embodiment of the third aspect. For example, the processor 1710 may be configured to perform the following control: send first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; send physical layer signaling, the The physical layer signaling is used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and receiving an uplink signal, the uplink signal is in the one or more time-frequency resources. The time-frequency resources are sent from the first starting position.
[0344]
In addition, as shown in FIG. 17 , the network device 1700 may further include: a transceiver 1740, an antenna 1750, etc.; wherein, the functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the network device 1700 does not necessarily include all the components shown in FIG. 17 ; in addition, the network device 1700 may also include components not shown in FIG. 17 , and reference may be made to the prior art.
[0345]
The embodiment of the present application also provides a terminal device, but the present application is not limited to this, and may also be other devices.
[0346]
FIG. 18 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 18 , the terminal device 1800 may include a processor 1810 and a memory 1820 ; the memory 1820 stores data and programs, and is coupled to the processor 1810 . Notably, this figure is exemplary; other types of structures may be used in addition to or in place of this structure to implement telecommunication functions or other functions.
[0347]
For example, the processor 1810 may be configured to execute a program to implement the method for sending an uplink signal according to the embodiments of the first aspect and/or the second aspect. For example, the processor 1810 may be configured to perform the following control: receive first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; receive physical layer signaling, the The physical layer signaling is used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and from the one or more time-frequency resources from the The first starting position starts to send the uplink signal.
[0348]
As shown in FIG. 18 , the terminal device 1800 may further include: a communication module 1830 , an input unit 1840 , a display 1850 , and a power supply 1860 . The functions of the above components are similar to those in the prior art, and details are not repeated here. It is worth noting that the terminal device 1800 does not necessarily include all the components shown in FIG. 18 , and the above components are not required; in addition, the terminal device 1800 may also include components not shown in FIG. 18 . There is technology.
[0349]
An embodiment of the present application further provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to perform the uplink signal processing in the first aspect and/or the second aspect of the embodiment. delivery method.
[0350]
Embodiments of the present application further provide a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the uplink signal sending method described in the embodiments of the first aspect and/or the second aspect.
[0351]
An embodiment of the present application further provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the method for receiving an uplink signal according to the embodiment of the third aspect.
[0352]
An embodiment of the present application further provides a storage medium storing a computer program, wherein the computer program causes a network device to execute the method for receiving an uplink signal according to the embodiment of the third aspect.
[0353]
The apparatuses and methods above in the present application may be implemented by hardware, or may be implemented by hardware combined with software. The present application relates to a computer-readable program that, when executed by logic components, enables the logic components to implement the above-described apparatus or constituent components, or causes the logic components to implement the above-described various methods or steps. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
[0354]
The method/apparatus described in conjunction with the embodiments of this application 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 shown in the figures and/or one or more combinations of the functional block diagrams may correspond to either software modules or hardware modules of the computer program flow. These software modules may respectively correspond to the various steps shown in the figure. These hardware modules can be implemented by, for example, solidifying these software modules using a Field Programmable Gate Array (FPGA).
[0355]
A software module may reside 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 can be coupled to the processor, such that the processor can read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor. The processor and storage medium may reside in an 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 a device (such as a mobile terminal) adopts 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.
[0356]
For one or more of the functional blocks and/or one or more combinations of the functional blocks described in the figures, it can be implemented as a general-purpose processor, a digital signal processor (DSP) for performing the functions described in this application ), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof. One or more of the functional blocks and/or one or more combinations of the functional blocks described with respect to the figures can also be implemented as a combination of computing devices, eg, a combination of a DSP and a microprocessor, multiple microprocessors processor, one or more microprocessors in communication with the DSP, or any other such configuration.
[0357]
The present application has been described above with reference to the specific embodiments, but those skilled in the art should understand that these descriptions are all exemplary and do not limit the protection scope of the present application. Those skilled in the art can make various variations and modifications to the present application according to the spirit and principles of the present application, and these variations and modifications are also within the scope of the present application.
[0358]
Regarding the implementations including the above embodiments, the following additional notes are also disclosed:
[0359]
Note 1. A method for sending an uplink signal, comprising:
[0360]
The terminal device receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0361]
receiving, by the terminal device, physical layer signaling for indicating a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0362]
The terminal device starts to send the uplink signal from the first starting position on the one or more time-frequency resources.
[0363]
Supplement 2. The method according to Supplement 1, wherein the terminal device starts sending the uplink signal from the first starting position on the one or more time-frequency resources, including:
[0364]
The terminal device sends the uplink signal from the first starting position on the one or more time-frequency resources using the first channel access manner.
[0365]
Supplement 3. The method according to Supplement 1 or 2, wherein the terminal device uses a first channel access mode to access the one or more time-frequency resources from the The first starting position starts to send the uplink signal;
[0366]
In the case that the judgment condition is not satisfied, the uplink signal is sent from the second starting position on the one or more time-frequency resources by using the second channel access mode, wherein the one or more time-frequency resources are used to transmit the uplink signal. The second starting position within the time domain range of the frequency resource is predefined or preconfigured or indicated by the network device.
[0367]
Supplement 4. The method according to Supplement 3, wherein the judgment condition includes at least one of the following: whether the physical layer signaling.
[0368]
Supplement 5. The method according to Supplement 4, wherein the time interval between the first time position and the start position of the first time-frequency resource of the one or more time-frequency resources is not less than all the time-frequency resources. The preparation time of the uplink signal, or the time interval between the first time position and the second start position is not less than the preparation time of the uplink signal.
[0369]
Supplement 6. The method according to any one of Supplementary Notes 1 to 5, wherein the uplink signal includes at least one of the following signals or channels: Physical Uplink Shared Channel (PUSCH), Physical Random Access Channel (PRACH) , Physical Uplink Control Channel (PUCCH), Sounding Reference Signal (SRS).
[0370]
Supplement 7. The method according to any one of Supplements 2 to 6, wherein the first channel access method is a channel access method used for channel sharing.
[0371]
Supplement 8. The method according to Supplement 7, wherein the first channel access mode is one of at least one channel access mode used for channel sharing.
[0372]
Supplement 9. The method according to any one of Supplements 3 to 8, wherein the second channel access method is a channel access method for initializing an occupied channel.
[0373]
Supplement 10. The method according to any one of Supplementary Notes 7 to 9, wherein the first channel access mode and/or the second channel access mode belong to at least one channel supported by the terminal device access method.
[0374]
Supplement 11. The method according to Supplement 10, wherein at least one channel access mode supported by the terminal device is predefined or preconfigured, and/or indicated by a network device.
[0375]
Supplement 12. The method according to any one of Supplements 2 to 11, wherein the physical layer signaling includes second indication information, where the second indication information is used to indicate the first channel access mode and /or the first starting position.
[0376]
Supplement 13. The method according to any one of Supplementary Notes 2 to 11, wherein the physical layer signaling includes second indication information, and the second indication information is used to indicate the first starting position; The third indication information contained in the physical layer signaling or other physical layer signaling indicates the first channel access mode.
[0377]
Supplementary Note 14. The method according to any one of Supplementary Notes 2 to 13, wherein there is a corresponding relationship between the first channel access mode and the first starting position; the corresponding relationship is predefined or preconfigured or Indicated by the network device.
[0378]
Supplementary Note 15. The method according to any one of Supplementary Notes 10 to 13, wherein the second indication information indicates a first offset value of the first starting position relative to the second time position.
[0379]
Supplement 16. The method according to Supplement 15, wherein the second time position is within a time domain range of the one or more time domain resources.
[0380]
Supplement 17. The method according to Supplement 15 or 16, wherein the second time position is the start position of the first symbol of the one or more time domain resources, or the second time The position is the second starting position.
[0381]
Supplement 18. The method according to any one of Supplementary Notes 15 to 17, wherein the first channel access mode corresponds to the first offset value, or the first channel access mode and all The set corresponds to the first offset value.
[0382]
Supplement 19. The method according to any one of Supplementary Notes 15 to 18, wherein, if the one or more time-frequency resources are within a channel occupation time including at least two uplink and downlink conversions, and the terminal device adopts The first channel access mode sends the uplink signal on the one or more time-frequency resources, and the first offset value is not greater than 25us.
[0383]
Supplement 20. The method according to any one of Supplementary Notes 3 to 11, wherein the second starting position is indicated by the network device through fourth indication information;
[0384]
The fourth indication information is used to indicate a second offset value of the second starting position relative to the starting position of the first symbol of the one or more time-frequency resources, or used to indicate the the set of second offset values.
[0385]
Supplementary Note 21. The method according to any one of Supplementary Notes 1 to 20, wherein the subcarrier spacing (SCS) of the one or more time-frequency resources is one of at least two subcarrier spacings,
[0386]
The terminal device further determines the first starting position and/or the second starting position according to the subcarrier spacing of the one or more time-frequency resources.
[0387]
Supplement 22. The method according to Supplement 21, wherein at least two kinds of the subcarrier intervals correspond to different first starting positions.
[0388]
Supplement 23. The method according to Supplement 21, wherein at least two kinds of the subcarrier intervals correspond to different second starting positions.
[0389]
Supplementary Note 24. The method according to Supplementary Note 21, wherein at least two types of subcarrier intervals correspond to different first offset values, or at least two types of subcarrier intervals correspond to different first offset values A collection of shift values.
[0390]
Supplementary Note 25. The method according to Supplementary Note 21, wherein at least two types of subcarrier intervals correspond to different second offset values, or at least two types of subcarrier intervals correspond to different second offset values A collection of shift values.
[0391]
Supplement 26. The method according to Supplement 21, wherein the reference subcarrier spacing corresponds to a first offset value, or the reference subcarrier spacing corresponds to a set of the first offset values.
[0392]
Supplement 27. The method according to Supplement 21, wherein the reference subcarrier spacing corresponds to a second offset value, or the reference subcarrier spacing corresponds to a set of the second offset values.
[0393]
Supplement 28. The method according to any one of Supplementary Notes 1 to 27, wherein the method further comprises:
[0394]
The terminal device generates the uplink signal according to the subcarrier spacing of the one or more time-frequency resources and/or the adopted channel access mode.
[0395]
Supplement 29. The method according to Supplement 28, wherein the terminal device determines that the uplink can be sent in the one or more time-frequency resources according to the subcarrier interval of the one or more time-frequency resources The first symbol of the signal and the starting position of the part of the first symbol that can transmit the uplink signal.
[0396]
Supplement 30. The method according to any one of Supplements 1 to 29, further comprising:
[0397]
The terminal device maps the first uplink information according to at least one of the following information or any combination of information: the subcarrier spacing of the one or more time-frequency resources, the channel access mode adopted, and the first uplink information for indicating mapping of the first uplink information. Indication of the symbol position of the .
[0398]
Supplement 31. The method according to Supplement 30, wherein the terminal device maps the first uplink information to one or more complete symbols in the one or more time-frequency resources, and the complete A symbol can devote all of its time to transmitting the upstream signal.
[0399]
Supplement 32. The method according to claim 30 or 31, wherein, for at least two subcarrier intervals and/or at least two channel access modes, the one or more time-frequency resources are mapped to the first uplink The symbol positions of the information are at least partially different.
[0400]
Supplement 33. The method according to any one of Supplementary Notes 30 to 32, wherein the symbol position to which the first uplink information is mapped in the one or more time-frequency resources is pre-defined or pre-configured or configured by a network device instruct.
[0401]
Supplement 34. The method according to any one of Supplements 1 to 33, wherein the uplink signal further carries second uplink information, and the second uplink information is used to indicate an end position of the uplink signal.
[0402]
Supplement 35. The method according to Supplement 34, wherein, for at least two subcarrier intervals, the end positions of the uplink signals indicated by the second uplink information are different.
[0403]
Supplement 36. The method according to any one of Supplements 1 to 35, wherein the one or more time-frequency resources include at least one symbol that is predefined or semi-statically configured to be flexible.
[0404]
Supplement 37. The method according to any one of Supplementary Notes 1 to 36, wherein the terminal device can be pre-defined or semi-statically configured as one or more flexible time-frequency resources in the one or more time-frequency resources The uplink signal is sent on the symbol.
[0405]
Supplement 38. The method according to Supplement 36 or 37, wherein in the case that the terminal device does not receive the corresponding dynamic indication information for indicating the uplink and downlink configuration, the one or more time-frequency resources to send the uplink signal.
[0406]
Supplement 39. The method according to any one of Supplementary Notes 36 to 38, wherein whether to allow the terminal device to be configured as flexible in the case of not receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on one or more symbols of , pre-defined or pre-configured or instructed by the network device.
[0407]
Supplement 40. The method according to any one of Supplementary Notes 36 to 38, wherein whether to allow the terminal device to be configured as flexible in the case of not receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on one or more symbols of , and the type of the uplink signal is predefined or preconfigured or indicated by the network device.
[0408]
Note 41. A method for sending an uplink signal, comprising:
[0409]
The terminal device receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0410]
The terminal device starts to send an uplink signal on one or more time-frequency resources in the at least one time-frequency resource from a second starting position within the time domain range of the one or more time-frequency resources,
[0411]
The second starting position is predefined or preconfigured or indicated by the network device through fourth indication information.
[0412]
Supplement 42. The method according to Supplement 41, wherein the fourth indication information is used to indicate the start of the second start position relative to the first symbol of the one or more time-frequency resources A second offset value for the location, or a set indicating the second offset value.
[0413]
Supplement 43. The method according to Supplement 41 or 42, wherein the subcarrier spacing (SCS) of the one or more time-frequency resources is one of at least two subcarrier spacings,
[0414]
The terminal device further determines the first starting position and/or the second starting position according to the subcarrier spacing of the one or more time-frequency resources.
[0415]
Supplement 44. The method according to Supplement 43, wherein at least two of the subcarrier intervals correspond to different first starting positions.
[0416]
Supplement 45. The method according to Supplement 43, wherein at least two of the subcarrier intervals correspond to different second starting positions.
[0417]
Supplement 46. The method according to Supplement 43, wherein at least two types of subcarrier intervals correspond to different first offset values, or at least two types of subcarrier intervals correspond to different first offset values A collection of shift values.
[0418]
Supplement 47. The method according to Supplement 43, wherein at least two kinds of subcarrier intervals correspond to different second offset values, or at least two kinds of subcarrier intervals correspond to different second offset values A collection of shift values.
[0419]
Supplement 48. The method according to Supplement 43, wherein the reference subcarrier spacing corresponds to a first offset value, or the reference subcarrier spacing corresponds to a set of the first offset values.
[0420]
Supplement 49. The method according to Supplement 43, wherein the reference subcarrier spacing corresponds to a second offset value, or the reference subcarrier spacing corresponds to a set of the second offset values.
[0421]
Supplement 50. The method according to any one of Supplementary Notes 41 to 49, wherein the method further comprises:
[0422]
The terminal device generates the uplink signal according to the subcarrier spacing of the one or more time-frequency resources and/or the adopted channel access mode.
[0423]
Supplement 51. The method according to Supplement 50, wherein the terminal device determines that the uplink can be sent in the one or more time-frequency resources according to the subcarrier interval of the one or more time-frequency resources The first symbol of the signal and the starting position of the part of the first symbol that can transmit the uplink signal.
[0424]
Supplement 52. The method according to any one of Supplementary Notes 41 to 51, further comprising:
[0425]
The terminal device maps the first uplink information according to at least one of the following information or any combination of information: the subcarrier spacing of the one or more time-frequency resources, the channel access mode used to map the first uplink information, used to indicate Indication information of the symbol position to which the first uplink information is mapped.
[0426]
Supplement 53. The method according to Supplement 52, wherein the terminal device maps the first uplink information to one or more complete symbols in the one or more time-frequency resources, the complete A symbol can devote all of its time to transmitting the upstream signal.
[0427]
Supplement 54. The method according to Supplement 52 or 53, wherein, for at least two subcarrier spacings and/or at least two channel access modes, the first uplink is mapped to the one or more time-frequency resources The symbol positions of the information are at least partially different.
[0428]
Supplement 55. The method according to any one of Supplementary Notes 52 to 54, wherein the symbol positions to which the first uplink information is mapped in the one or more time-frequency resources are predefined or preconfigured or configured by a network device instruct.
[0429]
Supplement 56. The method according to any one of Supplements 41 to 55, wherein the uplink signal further carries second uplink information, and the second uplink information is used to indicate an end position of the uplink signal.
[0430]
Supplement 57. The method according to Supplement 56, wherein, for at least two subcarrier intervals, the end positions of the uplink signals indicated by the second uplink information are different.
[0431]
Supplement 58. The method according to any one of Supplements 41 to 57, wherein the one or more time-frequency resources include at least one symbol that is predefined or semi-statically configured to be flexible.
[0432]
Supplement 59. The method according to any one of Supplements 41 to 58, wherein the terminal device can be pre-defined or semi-statically configured as one or more flexible time-frequency resources in the one or more time-frequency resources The uplink signal is sent on the symbol.
[0433]
Supplement 60. The method according to Supplement 58 or 59, wherein, in the case that the terminal device does not receive corresponding dynamic indication information for indicating uplink and downlink configuration, the one or more time-frequency resources to send the uplink signal.
[0434]
Supplement 61. The method according to any one of Supplementary Notes 58 to 60, wherein whether to allow the terminal device to be configured as flexible without receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on one or more symbols of , pre-defined or pre-configured or configured by network equipment.
[0435]
Supplement 62. The method according to any one of Supplementary Notes 58 to 60, wherein whether to allow the terminal device to be configured as flexible in the case of not receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on one or more symbols of the uplink signal, and the type of the uplink signal is predefined or preconfigured or configured by the network device.
[0436]
Supplement 63. A method for sending an uplink signal, comprising:
[0437]
Under the condition that the judgment condition is satisfied, the terminal device uses the first channel access mode to send the uplink signal from the first starting position on one or more time-frequency resources semi-statically configured or semi-persistently scheduled; wherein the one or more The first starting position within the time domain range of the time-frequency resources is indicated by physical layer signaling;
[0438]
In the case that the judgment condition is not satisfied, the terminal device uses the second channel access mode to send the information from the second starting position on one or more time-frequency resources of the semi-static configuration or semi-persistent scheduling. The uplink signal, wherein the second starting position within the time domain range of the one or more time-frequency resources is predefined or preconfigured or indicated by a network device.
[0439]
Supplement 64. The method according to Supplement 62, wherein the judging condition includes at least one of the following: whether the physical layer signaling.
[0440]
Note 65. A method for sending an uplink signal, comprising:
[0441]
The terminal equipment generates an uplink signal;
[0442]
In the case that the terminal device does not receive the corresponding dynamic indication information for indicating the uplink and downlink configuration, the time-frequency of the semi-static configuration or semi-persistent scheduling including at least one symbol pre-defined or semi-statically configured as flexible The uplink signal is sent on the resource.
[0443]
Supplement 66. The method according to Supplement 65, wherein whether to allow the terminal device to be configured as one or more flexible ones without receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on a symbol, predefined or preconfigured or configured by network equipment.
[0444]
Supplement 67. The method according to Supplement 65, wherein whether to allow the terminal device to be configured as one or more flexible ones without receiving corresponding dynamic indication information for indicating uplink and downlink configuration The uplink signal is sent on the symbol, and the type of the uplink signal is predefined or preconfigured or configured by the network device.
[0445]
Supplementary note 68. A method for receiving an uplink signal, comprising:
[0446]
The network device sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling;
[0447]
The network device sends physical layer signaling, the physical layer signaling is used to indicate a first starting position within a time domain range of one or more time-frequency resources in the at least one time-frequency resource; and
[0448]
The network device receives an uplink signal, and the uplink signal is sent by the terminal device from the first starting position on the one or more time-frequency resources.
[0449]
Supplement 69. The method according to Supplement 68, wherein the uplink signal carries first uplink information; the first uplink information is mapped to one or more complete symbols in the time-frequency resource, The complete symbol can devote the entire time to transmitting the upstream signal.
[0450]
Supplement 70. The method according to Supplement 68, wherein the uplink signal further carries second uplink information; the second uplink information is used to indicate the end position of the uplink signal;
[0451]
The network device further determines the end position of the uplink signal according to the second uplink information.
[0452]
Note 71. A method for receiving an uplink signal, comprising:
[0453]
The network device sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; and
[0454]
The network device receives an uplink signal, and the uplink signal is sent by the terminal device on one or more time-frequency resources in the at least one time-frequency resource from a time domain within the time domain range of the one or more time-frequency resources. The second starting position starts to send;
[0455]
Wherein, the second starting position is predefined or preconfigured or indicated by the network device through fourth indication information.
[0456]
Supplementary note 72. The method according to supplementary note 71, wherein the fourth indication information indicates the difference of the second starting position relative to the starting position of the first symbol of the one or more time-frequency resources A second offset value, or a set indicating the second offset value.
[0457]
Supplement 73. A method for receiving an uplink signal, comprising:
[0458]
The network device sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; and
[0459]
the network device receives an uplink signal;
[0460]
Wherein, the uplink signal is sent by the terminal device on one or more time-frequency resources in the at least one time-frequency resource by adopting the first channel access mode and the first starting position under the condition that the judgment condition is satisfied; wherein The first starting position within the time domain range of the one or more time-frequency resources is indicated by physical layer signaling;
[0461]
Or, the uplink signal is sent by the terminal device on the one or more time-frequency resources by using a second channel access mode and a second starting position under the condition that the judgment condition is not satisfied, wherein the The second starting position within the time domain range of the one or more time-frequency resources is predefined or preconfigured or indicated by the network device.
[0462]
Supplement 74. The method according to Supplement 73, wherein the judgment condition includes at least one of the following: whether the physical layer signaling.
[0463]
Note 75. A method for receiving an uplink signal, comprising:
[0464]
The network device receives the uplink signal sent by the terminal device,
[0465]
Wherein, the uplink signal is configured by the terminal equipment in the case that the terminal device does not receive the corresponding dynamic indication information for indicating the uplink and downlink configuration, in the semi-static configuration including at least one symbol that is predefined or semi-statically configured as flexible or semi-persistently scheduled time-frequency resources.
[0466]
Supplement 76. A terminal device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to realize the uplink according to any one of Supplementary Notes 1 to 67 The method of sending the signal.
[0467]
Supplementary note 77. A network device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the computer program to implement the uplink according to any one of supplementary notes 68 to 75 The method of receiving the signal.
[0468]
Supplement 78. A communication system, comprising:
[0469]
A terminal device, which receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; receives physical layer signaling, where the physical layer signaling is used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and sending an uplink signal from the first starting position on the one or more time-frequency resources;
[0470]
A network device, which sends the first indication information and the physical layer signaling, and receives the uplink signal
claims
[Claim 1]
An apparatus for sending an uplink signal, comprising: an information receiving unit, which receives first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; a signaling receiving unit, which Receive physical layer signaling, the physical layer signaling is used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and a signal sending unit, which is in the The uplink signal is sent from the first starting position on the one or more time-frequency resources.
[Claim 2]
The apparatus according to claim 1, wherein the signal sending unit sends the uplink signal from the first starting position on the one or more time-frequency resources using a first channel access manner.
[Claim 3]
The apparatus according to claim 2, wherein there is a corresponding relationship between the first channel access mode and the first starting position; the corresponding relationship is predefined or preconfigured or indicated by a network device.
[Claim 4]
The apparatus of claim 1, wherein the second indication information indicates a first offset value of the first starting position relative to the second time position.
[Claim 5]
4. The apparatus of claim 4, wherein the second temporal location is within a temporal extent of the one or more temporal resources.
[Claim 6]
6. The apparatus of claim 5, wherein the second time position is a start position of a first symbol of the one or more time domain resources, or the second time position is the second time position starting point.
[Claim 7]
The apparatus according to claim 1, wherein the signal sending unit starts from the first starting position on the one or more time-frequency resources by using a first channel access mode when the judgment condition is satisfied sending the uplink signal; in the case that the judgment condition is not satisfied, using the second channel access mode to send the uplink signal from the second starting position on the one or more time-frequency resources, wherein the The second starting position within the time domain range of the one or more time-frequency resources is predefined or preconfigured or indicated by the network device.
[Claim 8]
The apparatus according to claim 7, wherein the judgment condition includes at least one of the following: whether the physical layer signaling is received no later than a first time position of the one or more time-frequency resources.
[claim 9]
The apparatus according to claim 8, wherein a time interval between the first time position and the start position of the first time-frequency resource of the one or more time-frequency resources is not less than a time interval of the uplink signal The preparation time, or, the time interval between the first time position and the second start position is not less than the preparation time of the uplink signal.
[claim 10]
The apparatus according to claim 2, wherein the uplink signal comprises at least one of the following signals or channels: a physical uplink shared channel, a physical random access channel, a physical uplink control channel, a sounding reference signal, and a demodulation reference signal.
[claim 11]
The apparatus according to claim 2, wherein the first channel access mode is a channel access mode for channel sharing.
[claim 12]
The apparatus of claim 11, wherein the first channel access manner is one of at least one channel access manner used for channel sharing.
[claim 13]
The apparatus according to claim 7, wherein the second channel access mode is a channel access mode in which an occupied channel is initialized.
[claim 14]
The apparatus according to claim 7, wherein the first channel access mode and/or the second channel access mode belong to at least one channel access mode supported by the terminal device.
[claim 15]
The apparatus according to claim 14, wherein at least one channel access mode supported by the terminal device is predefined or preconfigured or indicated by a network device.
[claim 16]
The apparatus according to claim 2, wherein the physical layer signaling includes second indication information, and the second indication information is used to indicate the first channel access mode and/or the first starting position.
[claim 17]
The apparatus according to claim 2, wherein the physical layer signaling includes second indication information, the second indication information is used to indicate the first starting position; The third indication information in other physical layer signaling indicates the first channel access mode.
[claim 18]
The apparatus according to claim 7, wherein the second starting position is indicated by a network device through fourth indication information; wherein the fourth indication information is used to indicate that the second starting position is relative to the second starting position A second offset value of the starting position of the first symbol of one or more time-frequency resources, or a set used to indicate the second offset value.
[claim 19]
An apparatus for receiving an uplink signal, comprising: an information sending unit, which sends first indication information, where the first indication information is used to indicate at least one time-frequency resource of semi-static configuration or semi-persistent scheduling; a signaling sending unit, which sending physical layer signaling, the physical layer signaling used to indicate a first starting position within the time domain range of one or more time-frequency resources in the at least one time-frequency resource; and a signal receiving unit that receives an uplink signal, wherein the uplink signal is sent from the first starting position on the one or more time-frequency resources.
[claim 20]
A method for sending an uplink signal, comprising: generating an uplink signal by a terminal device; when the terminal device does not receive corresponding dynamic indication information for indicating an uplink and downlink configuration, the terminal device includes a predefined or semi-static configuration as The uplink signal is sent on a flexible semi-statically configured or semi-persistently scheduled time-frequency resource of at least one symbol.