Signal sending method, signal receiving method and device
Technical field
[0001]
The present invention relates to the field of communications, and in particular to a signal sending method, signal receiving method and device.
Background technique
[0002]
In the high-frequency communication scenario, the communication link is susceptible to physical conditions, such as weather, obstacles, changes in direction and angle, and other factors, resulting in transmission failure in the original beam direction. The beam failure recovery (BFR, Beam Failure Recovery) technology is mainly aimed at this scenario, and uses the measurement results of the beam power in different directions to quickly locate a new and reliable beam direction, thereby completing the rapid recovery of the link.
[0003]
The beam failure recovery technology is not only very effective in single-carrier scenarios, but also can play an important role in multi-carrier scenarios. In a multi-carrier scenario, terminal equipment (TE, Terminal Equipment) can be connected to one network device (for example, a base station) or multiple network devices. When different carriers of a terminal device are connected to network devices in different directions at the same time, because the spatial directions are relatively independent, at a certain moment, only part of the connections on the different carriers may have beam failure. In this case, the beam failure recovery technology needs to be optimized for this scenario, for example, using a carrier without beam failure to perform parameter measurement, data transmission, etc., so as to improve the robustness of the system.
[0004]
It should be noted that the above introduction to the technical background is only set forth to facilitate a clear and complete description of the technical solutions of the present invention and facilitate the understanding of those skilled in the art. It should not be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of the present invention.
[0005]
Summary of the invention
[0006]
At present, in the 5G-NR (5G-New Radio) communication system, after the beam failure recovery process is successful, the spatial domain transmission filter (Spatial Domain Transmission Filter) used for uplink transmission is still configured before the beam failure recovery. Due to the reciprocity of the uplink and downlink transmissions, when a beam failure occurs on the downlink channel, the corresponding uplink channel will also fail with a high probability. This means that it is unreliable for the terminal equipment to send uplink signals according to the original spatial configuration.
[0007]
The embodiments of the present invention provide a signal sending method, a signal receiving method, and a device. A terminal device receives or applies activation signaling or reconfiguration signaling after a period of time after receiving a downlink signal related to beam failure recovery. In the time interval, use the same spatial transmission filter as the spatial transmission filter that transmits the uplink signal related to beam failure recovery or receives the downlink reference signal to transmit the uplink signal in the first cell, thereby providing a terminal device in the beam The solution of using the spatial transmission filter to send the uplink signal after the failure recovery is successful has improved the reliability of the terminal equipment in sending the uplink signal. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in a special cell (SpCell, Special Cell), but also applies to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In a multi-carrier (multi-serving cell configuration) scenario, this solution can correctly indicate the spatial transmission filter used by the uplink signal of the first cell, and avoid incorrectly indicating other cells (not the first cell). Cell) the spatial transmission filter used by the uplink signal.
[0008]
In addition, the solution also accurately stipulates the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the period of time by terminal equipment and network equipment.
[0009]
According to a first aspect of the embodiments of the present invention, there is provided a signal sending device, the device comprising: a sending unit configured to receive or apply a downlink signal related to beam failure recovery for a period of time. Before activating signaling or reconfiguration signaling, use the same spatial transmission filter as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery or receiving the downlink reference signal to transmit the uplink signal in the first cell.
[0010]
According to a second aspect of the embodiments of the present invention, there is provided a signal receiving device, the device comprising: a receiving unit configured to transmit an activation signal after a period of time after transmitting a downlink signal related to beam failure recovery Before enabling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect, receive the uplink signal in the first cell according to the spatial information related to receiving the uplink signal related to beam failure recovery or sending the downlink reference signal.
[0011]
According to a third aspect of the embodiments of the present invention, there is provided a terminal device including the apparatus according to the first aspect of the embodiments of the present invention.
[0012]
According to a fourth aspect of the embodiments of the present invention, there is provided a network device including the apparatus according to the second aspect of the embodiments of the present invention.
[0013]
According to a fifth aspect of the embodiments of the present invention, a communication system is provided, the communication system including the terminal device according to the third aspect of the embodiments of the present invention and the network device according to the fourth aspect of the embodiments of the present invention .
[0014]
According to a sixth aspect of the embodiments of the present invention, a signal transmission method is provided, the method includes: a terminal device receives or applies activation signaling or activation signaling after a period of time after receiving a downlink signal related to beam failure recovery Before the reconfiguration signaling, the same spatial transmission filter as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery or receiving the downlink reference signal is used to transmit the uplink signal in the first cell.
[0015]
According to a seventh aspect of the embodiments of the present invention, a signal receiving method is provided, the method includes: after a period of time after a network device has sent a downlink signal related to beam failure recovery, and after sending activation signaling or reconfiguration Before the signaling or the activation signaling or the reconfiguration signaling takes effect, the uplink signal in the first cell is received according to the spatial information related to the reception of the uplink signal related to beam failure recovery or the transmission of the downlink reference signal.
[0016]
According to an eighth aspect of the embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in a signal sending apparatus or terminal device, the program causes the signal sending apparatus or terminal device to execute the implementation of the present invention Example of the signal transmission method described in the sixth aspect.
[0017]
According to a ninth aspect of the embodiments of the present invention, there is provided a storage medium storing a computer readable program, wherein the computer readable program causes the signal sending apparatus or terminal device to execute the sixth aspect of the embodiment of the present invention Signal sending method.
[0018]
According to a tenth aspect of the embodiments of the present invention, there is provided a computer-readable program, wherein when the program is executed in a signal receiving apparatus or network equipment, the program causes the signal receiving apparatus or network equipment to execute the implementation of the present invention. The signal receiving method described in the seventh aspect of the example.
[0019]
According to the eleventh aspect of the embodiments of the present invention, there is provided a storage medium storing a computer readable program, wherein the computer readable program enables the signal receiving apparatus or network device to execute the seventh aspect of the embodiments of the present invention. The signal receiving method described.
[0020]
The beneficial effect of the present invention is that the terminal equipment uses and transmits the beam failure after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. Recover the related uplink signal or receive the downlink reference signal with the same spatial transmission filter as the spatial transmission filter, and send the uplink signal in the first cell, thereby providing a terminal device using the spatial transmission filter to transmit after the beam failure is successfully restored The uplink signal solution improves the reliability of the uplink signal sent by the terminal equipment. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell).
[0021]
With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the ways in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby. Within the spirit and scope of the terms of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents.
[0022]
Features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for features in other embodiments .
[0023]
It should be emphasized that the term "comprising/comprising" when used herein refers to the existence of a feature, a whole, a step or a component, but does not exclude the existence or addition of one or more other features, a whole, a step or a component.
Description of the drawings
[0024]
The included drawings are used to provide a further understanding of the embodiments of the present invention, which constitute a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principle of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor. In the attached picture:
[0025]
Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present invention;
[0026]
FIG. 2 is a schematic diagram of a signal sending method according to Embodiment 1 of the present invention;
[0027]
FIG. 3 is another schematic diagram of the signal sending method according to Embodiment 1 of the present invention;
[0028]
4 is a schematic diagram of a timing sequence of sending and receiving signals according to Embodiment 1 of the present invention;
[0029]
FIG. 5 is a schematic diagram of a signal receiving method according to Embodiment 2 of the present invention;
[0030]
6 is another schematic diagram of the signal receiving method according to Embodiment 2 of the present invention;
[0031]
FIG. 7 is a schematic diagram of a signal sending method according to Embodiment 3 of the present invention;
[0032]
FIG. 8 is a schematic diagram of a signal sending device according to Embodiment 4 of the present invention;
[0033]
FIG. 9 is a schematic diagram of a signal receiving device according to Embodiment 5 of the present invention;
[0034]
10 is a schematic block diagram of the system configuration of a terminal device according to Embodiment 6 of the present invention;
[0035]
FIG. 11 is a schematic diagram of a structure of a network device according to Embodiment 7 of the present invention.
detailed description
[0036]
With reference to the drawings, the foregoing and other features of the present invention will become apparent through the following description. In the specification and drawings, specific embodiments of the present invention are specifically disclosed, which indicate some embodiments in which the principles of the present invention can be adopted. It should be understood that the present invention is not limited to the described embodiments. On the contrary, the present invention is not limited to the described embodiments. The invention includes all modifications, variations and equivalents falling within the scope of the appended claims.
[0037]
In the embodiments of the present invention, the terms "first", "second", etc. are used to distinguish different elements in terms of appellations, but they do not indicate the spatial arrangement or chronological order of these elements. These elements should not be referred to by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having" and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.
[0038]
In the embodiments of the present invention, the singular forms "a", "the", etc. may include plural forms, which should be broadly understood as "a" or "a type" rather than being limited to the meaning of "a"; in addition, the term "a" The "" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "based on" should be understood as "based at least in part on...", and the term "based on" should be understood as "based at least in part on...", unless the context clearly dictates otherwise.
[0039]
In the present embodiment, "plurality" or "multiple" means at least two or at least two.
[0040]
In the embodiment of the present invention, the term "communication network" or "wireless communication network" may refer to a network that complies with any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed ​​Packet Access (HSPA, High-Speed ​​Packet Access), etc.
[0041]
Moreover, the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and future 5G, New Radio (NR, New Radio), etc., and/or other communication protocols currently known or to be developed in the future.
[0042]
In the embodiment of the present invention, the term “network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. Network equipment may include but is not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.
[0043]
Among them, the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), antenna, relay (relay), or low-power node (such as femto, pico, etc.). And the term "base station" may include some or all of their functions, and each base station may provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and/or its coverage area, depending on the context in which the term is used.
[0044]
In the embodiment of the present invention, the term "User Equipment" (UE, User Equipment) or "Terminal Equipment" (TE, Terminal Equipment), for example, refers to a device that accesses a communication network through a network device and receives network services. The terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc.
[0045]
Among them, terminal devices may include but are not limited to the following devices: cellular phones (Cellular Phone), personal digital assistants (PDAs, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.
[0046]
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. For example, it may include, but is not limited to: Machine Type Communication (MTC) terminals, Vehicle-mounted communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.
[0047]
In the embodiment of the present invention, a cell may be a serving cell or a carrier corresponding to the cell, or a cell may be understood as a one-to-one correspondence with a carrier.
[0048]
In the embodiment of the present invention, for dual connectivity operation (DC, dual connectivity operation), the special cell refers to the primary cell (Pcell, Primary Cell) and the secondary cell group (MCG) in the master cell group (MCG). PSCell (Primary Secondary Cell) in the SCG, secondary cell group; otherwise, the special cell refers to the primary cell.
[0049]
The following describes the scenario of the embodiment of the present invention through an example, but the embodiment of the present invention is not limited to this.
[0050]
FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention, which schematically illustrates a case where terminal equipment and network equipment are taken as an example. As shown in FIG. 1, the communication system 100 may include a network equipment 101 and a terminal equipment 102. For simplicity For the sake of illustration, FIG. 1 only uses one terminal device as an example for description, but the embodiment of the present invention is not limited to one terminal device.
[0051]
In the embodiment of the present invention, existing services or services that can be implemented in the future can be performed between the network device 101 and the terminal device 102. For example, these services include but are not limited to: enhanced mobile broadband (eMBB, enhanced Mobile Broadband), massive machine type communication (mMTC, massive machine type communication), and highly reliable and low-latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), etc.
[0052]
Example 1
[0053]
The embodiment of the present invention provides a signal method, which is applied to the terminal device side.
[0054]
FIG. 2 is a schematic diagram of a signal sending method according to Embodiment 1 of the present invention. As shown in Figure 2, the method includes:
[0055]
Step 201: After a period of time after receiving a downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, the terminal device uses and transmits uplink signals related to beam failure recovery or receives The spatial transmission filter of the downlink reference signal is the same as the spatial transmission filter, and the uplink signal in the first cell is sent.
[0056]
In this way, a solution is provided in which a terminal device uses a spatial transmission filter to send an uplink signal after a successful beam failure recovery, which improves the reliability of the terminal device in sending an uplink signal. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In a multi-carrier (multi-serving cell configuration) scenario, this solution can correctly indicate the spatial transmission filter used by the uplink signal of the first cell, and avoid incorrectly indicating other cells (not the first cell). Cell) the spatial transmission filter used by the uplink signal.
[0057]
In addition, the solution also accurately stipulates the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the period of time by terminal equipment and network equipment.
[0058]
In step 201, after a period of time after receiving a downlink signal related to beam failure recovery and within a time interval before receiving or applying activation signaling or reconfiguration signaling, the terminal device uses and transmits the signal related to beam failure recovery. The uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell.
[0059]
That is to say, after receiving the downlink signal related to beam failure recovery for a period of time, the terminal device uses and transmits the uplink signal related to beam failure recovery or receives the downlink signal when it needs to transmit the uplink signal in the first cell. The spatial transmission filter of the reference signal is the same as the spatial transmission filter to transmit the uplink signal until the terminal device receives or applies activation signaling or reconfiguration signaling.
[0060]
Or, that is to say, after the terminal device receives the downlink signal related to beam failure recovery, if the time of receiving the downlink signal related to beam failure recovery is offset from the time when the terminal device sends the uplink signal (offset) is greater than or equal to a period of time, then use the same spatial transmission filter as the spatial transmission filter that transmits the uplink signal related to beam failure recovery or receives the downlink reference signal, and transmits the uplink signal in the first cell until the terminal device Receive or apply activation signaling or reconfiguration signaling.
[0061]
In this embodiment, after the terminal device receives or applies the activation signaling or the reconfiguration signaling, it is no longer subject to the restrictions on the use of the spatial transmission filter in step 201.
[0062]
In this embodiment, for the convenience of description, the time when the downlink signal related to beam failure recovery is received is referred to as the first time, and the time when the downlink signal related to beam failure recovery is received for a period of time is referred to as the first time. It is the second moment, the moment when the activation signaling or reconfiguration signaling is received or applied is called the third moment, and the moment when the uplink signal is sent in the first cell is called the fourth moment. Then, in step 201, the terminal device uses the above-mentioned prescribed spatial transmission filter to send the uplink signal in the first cell in the time interval between the second time and the third time. Alternatively, it can also be understood that the offset between the first time and the fourth time of the terminal device is greater than or equal to a period of time, and before the third time, the above-mentioned specified spatial transmission filter is used to transmit Uplink signal in the first cell.
[0063]
In the following, first, “a period of time during which a downlink signal related to beam failure recovery is received” in step 201 is exemplarily explained.
[0064]
In this embodiment, the downlink signal related to beam failure recovery is a downlink signal related to beam failure recovery sent by the network device to the user equipment. For example, the downlink signal related to beam failure recovery is a beam failure recovery response and/ Or the beam failed to recover in response to the scheduled downlink data information.
[0065]
In this embodiment, the beam failure recovery response may be received on the search space provided by the high-level parameters, by the Cell Radio Network Temporary Identifier (C-RNTI, Cell Radio Network Temporary Identifier) ​​or modulation and coding strategy cell wireless network Downlink Control Information (DCI, Downlink Control Information) scrambled by a temporary identifier (MCS-C-RNTI, Modulation and Coding Scheme-Cell Radio Network Temporary Identifier).
[0066]
In this embodiment, the high-level parameters can be configured by Radio Resource Control (RRC) signaling.
[0067]
In this embodiment, the high-level parameter may be used to configure a random access response (RAR, Random Access Response) search space set (RAR).
[0068]
For example, the high-level parameter is the recovery search space collection identifier (recoverySearchSpaceId).
[0069]
In this embodiment, the "period of time" can be set according to actual needs.
[0070]
For example, the period of time may be a preset number of symbols, slots, or milliseconds (msec).
[0071]
For example, the period of time is K symbols, or K time slots, or K milliseconds, where K is an integer greater than or equal to zero.
[0072]
In this embodiment, the length of the period of time may be related to subcarrier spacing (SCS).
[0073]
For example, the length of the period of time will change under different subcarrier intervals.
[0074]
For example, the number of symbols corresponding to the length of the period of time can be proportional to the SCS, that is, when the SCS is 15KHz, the length of the period of time is 14 symbols; when the SCS is 30KHz, the length of the period of time is 28 symbols ; When the SCS is 60KHz, the time length is 56 symbols, and so on.
[0075]
For another example, when the SCS is 15 kHz and 30 kHz, the first time length (for example, 14 symbols) is used, and when the SCS is higher than 30 kHz, the second time length (for example, 28 symbols) is used.
[0076]
In this embodiment, the length of the period of time may also be related to the capability of the terminal device (UE capability). Specifically, the capability of the terminal device refers to the capability of the terminal device reported to the network device.
[0077]
For example, the length of the period of time may change under different terminal equipment capability levels.
[0078]
For example, in the case of the first UE capability level (or the information of the first UE capability level is reported), the length of the period of time is the first time length (for example, 14 symbols); at the second UE capability level (or reported In the case of the second UE capability level information), the length of the period of time is the second period of time (for example, 28 symbols), and so on.
[0079]
In this embodiment, the length of the period of time may be configured by higher layer signaling.
[0080]
In this embodiment, the period of time can also be understood as a threshold. When the deviation between the first moment and the fourth moment is greater than or equal to the threshold and before the third moment, the terminal The device uses the above specified spatial transmission filter to send the uplink signal in the first cell.
[0081]
Wherein, the first moment, that is, the moment when a downlink signal related to beam failure recovery is received, can be further understood as:
[0082]
For example, if the downlink signal is the beam failure recovery response, the time when the downlink signal is received is the time slot in which the downlink signal is received; or the downlink signal is the beam failure recovery response, and the time when the downlink signal is received Is the first or last symbol of the time slot where the downlink signal is received; or, the downlink signal is the beam failure recovery response, then the moment when the downlink signal is received is the beam failure recovery response (search space ) A symbol (first symbol/last symbol) of the corresponding control resource set (control resource set);
[0083]
For another example, the downlink signal is the downlink data information scheduled in the beam failure recovery response (for example, the single-slot PDSCH or the PDSCH of one of the multi-slot PDSCHs), then the time when the downlink signal is received is the receiving The time slot in which the downlink signal is located; or, the downlink signal is the downlink data information (for example, PDSCH) scheduled in the beam failure recovery response, if the terminal device is configured with a single slot PDSCH (single slot PDSCH), that is, the configured PDSCH The number of repetitions is 1 (aggregationFactorDL=1), then the time when the downlink signal is received is the time slot in which the downlink data information is located; or, the downlink signal is the downlink data information scheduled by the beam failure recovery response (for example, PDSCH), if the terminal device is configured with multiple slot PDSCH (multiple slot PDSCH), that is, the configured PDSCH repetition number is greater than 1 (aggregationFactorDL>1), then the time when the downlink signal is received is the time slot related to the downlink data information ( For example, the time slot related to the downlink data information is the first time slot of the downlink data information (including the PDSCH of multiple time slots) or the last time slot of the downlink data information (including the PDSCH of multiple time slots) ).
[0084]
For another example, the downlink signal is the downlink data information scheduled in the beam failure recovery response (for example, the single-slot PDSCH or the PDSCH of one of the multi-slot PDSCHs), then the time when the downlink signal is received is the Symbols related to downlink data information (for example, the symbol related to downlink data information is the first symbol corresponding to the downlink signal, or the last symbol corresponding to the downlink signal); or, the downlink signal is the beam failure Resume the scheduled downlink data information (for example, PDSCH) in response. If the terminal device is configured with a single slot PDSCH (single slot PDSCH), that is, the configured PDSCH repetition number is 1 (aggregationFactorDL = 1), then the device that receives the downlink signal The moment is the first or last symbol of the resource (PDSCH) carrying the downlink data information; or, the downlink signal is the downlink data information (for example, PDSCH) scheduled in the beam failure recovery response, if the terminal device is configured If the multi-slot PDSCH (multiple slot PDSCH) is configured, that is, the number of repetitions of the configured PDSCH is greater than 1 (aggregationFactorDL>1), then the time when the downlink signal is received is the symbol related to the downlink data information (for example, the downlink data information related symbol The symbol is the first symbol of the PDSCH of the first time slot of the downlink signal (including the PDSCH of multiple time slots), or the PDSCH of the last time slot of the downlink signal (including the PDSCH of multiple time slots) The last symbol).
[0085]
Wherein, the fourth moment, that is, the moment when the uplink signal in the first cell is sent, can be further understood as:
[0086]
For example, the uplink signal refers to the uplink control information (PUCCH), then, the time when the uplink signal is sent in the first cell is the time slot where the uplink control information is sent in the first cell; or, the uplink signal refers to the uplink control Information (PUCCH), then, the time when the uplink signal in the first cell is sent is the symbol related to the uplink control information in the first cell (for example, the first symbol or the last symbol of the uplink control information; For example, send the first symbol or the last symbol of the time slot where the uplink control information of the first cell is located);
[0087]
For another example, the uplink signal refers to the uplink data information (for example, the single-slot PUSCH, or the PUSCH of one of the multi-slot PUSCH time slots). Then, when the uplink signal is sent in the first cell, it is sent in the first cell. The time slot where the uplink signal of the cell is located; or, the uplink signal refers to the uplink data information (PUSCH), then, if the terminal equipment is configured with a single slot PUSCH (single slot PUSCH), that is, the configured PUSCH repetition number is equal to 1 (repK=1 ), the time when the uplink signal in the first cell is sent, that is, the time slot where the uplink data information is sent in the first cell; or, the uplink signal refers to the uplink data information (PUSCH), then, if the terminal equipment is configured for a long time Slot PUSCH (multiple slot PUSCH), that is, the configured PUSCH repetition number is greater than 1 (repK>1), the time when the uplink signal is sent in the first cell is the time slot related to the uplink data information sent in the first cell (for example, , The first time slot or the last time slot of the uplink data information (including multiple time slots of PUSCH) sent in the first cell);
[0088]
For another example, the uplink signal refers to uplink data information (for example, a single-slot PUSCH, or a PUSCH in one of the multi-slot PUSCH slots). Then, the time when the uplink signal is sent in the first cell is sent in the first cell. The symbol related to the uplink data information (for example, the symbol related to the uplink data information is the first symbol or the last symbol of the uplink data information); or, the uplink signal refers to the uplink data information (PUSCH), then, if The terminal equipment is configured with a single slot PUSCH (single slot PUSCH), that is, the configured PUSCH repetition number is equal to 1 (repK = 1), and the time when the uplink signal in the first cell is sent is the first resource carrying the uplink data information. One symbol or the last symbol; or, the uplink signal refers to the uplink data information (PUSCH), then, if the terminal device is configured with multiple slot PUSCH (multiple slot PUSCH), that is, the configured PUSCH repetition number is greater than 1 (repK>1) , The moment when the uplink signal in the first cell is sent, that is, the symbol related to the uplink data information in the first cell is sent (for example, the uplink data information (including the PUSCH of multiple time slots) sent in the first cell) is the first The first symbol of the PUSCH in a slot or the last symbol of the PUSCH in the last slot).
[0089]
Wherein, the third moment, that is, the moment when activation signaling or reconfiguration signaling is received or applied, can be further understood as:
[0090]
For example, the moment when the activation signaling or the reconfiguration signaling is received or applied is the moment when the activation signaling or the reconfiguration signaling is applied, more specifically, the time slot in which the activation signaling or the reconfiguration signaling takes effect. ; Or, the moment when the activation signaling or reconfiguration signaling is received or applied is the downlink signal corresponding to the activation signaling or reconfiguration signaling (for example, the single-slot PDSCH, or one of the time slots of the multi-slot PDSCH PDSCH); or, if the terminal device is configured with a single slot PDSCH (single slot PDSCH), that is, the configured PDSCH repetition number is 1 (aggregationFactorDL=1), then the activation signaling or reconfiguration is received or applied The time of signaling is the time slot in which the PDSCH corresponding to the activation signaling or reconfiguration signaling is received; or, if the terminal device is configured with multiple slot PDSCH (multiple slot PDSCH), that is, the configured PDSCH repetition number is greater than 1 (aggregationFactorDL >1), the moment when the activation signaling or reconfiguration signaling is received or applied is the first or last time slot of the downlink signal (including the multi-slot PDSCH) corresponding to the activation signaling or reconfiguration signaling. .
[0091]
In the following, the "received or applied activation signaling or reconfiguration signaling" in step 201 is exemplarily described.
[0092]
In this embodiment, the activation signaling may also be an indication signaling.
[0093]
For example, the activation signaling may be at least one of the following:
[0094]
Activation signaling of the Media Access Control (MAC, Media Access Control) layer;
[0095]
Signaling indicating the switching of the antenna panel of the terminal device; and
[0096]
The target cell is the activation signaling of the first cell.
[0097]
For example, the activation signaling of the MAC layer is used to indicate the spatial transmission filter corresponding to the transmission of at least one configured PUCCH resource, for example, the activation signaling indicates the PUCCH-SpatialRelationInfo.
[0098]
In this embodiment, the reconfiguration signaling may be at least one of the following:
[0099]
RRC signaling;
[0100]
Reconfiguration signaling related to the antenna panel of the terminal device; and
[0101]
The target cell is the reconfiguration signaling of the first cell.
[0102]
For example, the RRC signaling reconfigures at least one spatial relationship parameter associated with a configured physical uplink control channel (PUCCH, Physical Uplink Control Channel) resource.
[0103]
For example, the spatial relationship parameter is PUCCH-SpatialRelationInfo.
[0104]
The above is an exemplary description of "a period of time when a downlink signal related to beam failure recovery is received" and "activation signaling or reconfiguration signaling is received or applied". Below, "use and send" in step 201 The uplink signal related to beam failure recovery or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter that transmits the uplink signal in the first cell" for an exemplary description.
[0105]
In this embodiment, the uplink signal related to beam failure recovery may be at least one of the following signals:
[0106]
Beam failure recovery request;
[0107]
Physical Random Access Channel (PRACH) transmission for link failure recovery; and
[0108]
A physical random access channel (PRACH) transmission (transmission) associated with the downlink signal related to beam failure recovery. Specifically, the physical random access channel (PRACH) transmission and the downlink signal related to beam failure recovery may be time-related, for example, performing the physical random access channel (PRACH) in time slot n ( PRACH) transmit (transmission), and receive the corresponding downlink signal related to beam failure recovery (random access response for beam failure recovery) in time slot n+4.
[0109]
In this embodiment, the uplink signal related to beam failure recovery may be configured by high-level parameters.
[0110]
In this embodiment, the high-level parameter may be carried by RRC signaling. More specifically, the high-level parameters can be used to configure beam failure recovery (BFR) dedicated resources for transmitting the uplink signal related to beam failure recovery. For example, the high-level parameter is PRACH-ResourceDedicatedBFR.
[0111]
In this embodiment, the downlink reference signal may be the downlink reference signal of the first cell.
[0112]
In this embodiment, the index of the downlink reference signal may be provided by MAC layer signaling. For example, the index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0113]
For example, the index of the downlink reference signal is q new , and the MAC layer entity selects q new from the RRC layer parameters . For example, the RRC layer parameter is a parameter candidateBeamRSList representing a candidate beam reference signal list.
[0114]
In step 201, when the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell, the same spatial domain as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery is used. Transmission filter, which transmits the uplink signal in the first cell; when the second cell where the uplink signal related to beam failure recovery is transmitted is not the same cell as the first cell, the spatial transmission filter that uses and receives the downlink reference signal The same spatial transmission filter sends the uplink signal in the first cell.
[0115]
FIG. 3 is another schematic diagram of the signal sending method according to Embodiment 1 of the present invention. As shown in Figure 3, the method includes:
[0116]
Step 301: The terminal device judges whether the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell. When the judgment result is "Yes", go to step 302, and when the judgment result is "No" ", go to step 303;
[0117]
Step 302: The terminal device uses and transmits the uplink signal related to beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. Spatial-domain transmission filter The same spatial-domain transmission filter sends the uplink signal in the first cell;
[0118]
Step 303: After a period of time after receiving the downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, the terminal device uses the same spatial transmission filter as the downlink reference signal The spatial transmission filter sends the uplink signal in the first cell.
[0119]
In this embodiment, the first cell may be at least one of the following cells:
[0120]
The cell where the uplink signal related to beam failure recovery is transmitted;
[0121]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0122]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located; and
[0123]
The cell where the downlink signal related to beam failure recovery is received;
[0124]
At least one or all activated cells; where the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0125]
In the case that the first cell is a cell where the uplink signal related to beam failure recovery is transmitted, the first cell and the second cell are the same cell.
[0126]
In this embodiment, the uplink signal on the first cell is, for example, an uplink signal sent on a physical uplink control channel (PUCCH) and/or an uplink signal sent on a physical uplink shared channel (PUSCH).
[0127]
For example, the uplink signal sent on the physical uplink control channel is used to carry confirmation information (for example, HARQ ACK/NACK information) of the downlink signal scheduled by the first control information. Wherein, the search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery. For example, the search space is provided by recoverySearchSpaceId.
[0128]
FIG. 4 is a schematic diagram of a timing sequence of sending and receiving signals in Embodiment 1 of the present invention. As shown in Figure 4, after a beam failure occurs, the terminal device sends an uplink signal related to beam failure recovery to the network device, such as a beam recovery request; the terminal device receives the beam failure recovery related information from the network device at the first moment. Downlink signal, such as beam failure recovery response; starting at the second time after a period of time T1 at the first time when the downlink signal related to beam failure recovery is successfully received, until the terminal device receives or applies activation from the network device In the time interval T2 when the third time of the signaling or reconfiguration signaling ends, the terminal device uses the same spatial transmission filter as the spatial transmission filter that transmits the uplink signal related to beam failure recovery or receives the downlink reference signal, and transmits In the uplink signal of the first cell (the fourth moment), the uplink signal is, for example, an uplink signal generated on PUCCH or PUSCH.
[0129]
It can be seen from the above-mentioned embodiments that the terminal equipment uses and transmits the beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. The related uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell. Therefore, a solution is provided for the terminal device to use the spatial transmission filter to send the uplink signal after the beam failure recovery is successful, and the reliability of the terminal device to send the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0130]
Example 2
[0131]
The embodiment of the present invention provides a signal receiving method, which is applied to the network device side, and the method corresponds to the signal sending method recorded in Embodiment 1.
[0132]
FIG. 5 is a schematic diagram of a signal receiving method according to Embodiment 2 of the present invention. As shown in Figure 5, the method includes:
[0133]
Step 501: After a period of time after the network device has sent a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, it receives and The beam fails to recover the related uplink signal or sends the spatial information related to the downlink reference signal, and receives the uplink signal in the first cell.
[0134]
In this way, a solution is provided for the network device to receive the uplink signal according to the spatial information after the beam failure recovery is successful, and the reliability of the network device to receive the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In a multi-carrier (multi-serving cell configuration) scenario, this solution can correctly indicate the spatial information on which the uplink signal of the first cell is sent, and avoid incorrectly indicating other cells (not the first cell). ) The spatial information on which the uplink signal is based.
[0135]
In addition, the solution also accurately stipulates the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the period of time by terminal equipment and network equipment.
[0136]
In this embodiment, according to spatial information related to receiving uplink signals related to beam failure recovery or sending downlink reference signals, receiving uplink signals in the first cell, for example, using and receiving uplink signals related to beam failure recovery Or, the same spatial transmission filter as the spatial transmission filter that sends the downlink reference signal, receives the uplink signal in the first cell.
[0137]
In step 501, the network device sends a downlink signal related to beam failure recovery for a period of time and sends activation signaling or reconfiguration signaling or a time interval before the activation signaling or reconfiguration signaling takes effect, Receive the uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal.
[0138]
That is to say, after a period of time after the network device transmits the downlink signal related to beam failure recovery, in the case where it needs to receive the uplink signal in the first cell, according to and receive the uplink signal related to beam failure recovery or send the downlink reference Signal-related spatial information is used to receive the uplink signal until the network device sends activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect.
[0139]
Or, in other words, after the network device transmits the downlink signal related to beam failure recovery, if the time when the downlink signal related to beam failure recovery is sent is offset from the time when the network device receives the uplink signal ( offset) is greater than or equal to a period of time, according to the spatial information related to the spatial transmission filter that receives the uplink signal related to beam failure recovery or sends the downlink reference signal, receives the uplink signal in the first cell until the network device sends the activation signal Enable or reconfiguration signaling or the activation signaling or reconfiguration signaling to take effect.
[0140]
In this embodiment, for the convenience of description, the time of "transmitting a downlink signal related to beam failure recovery" is referred to as the first time, and the time of "transmitting a downlink signal related to beam failure recovery for a period of time" is referred to as the first time. At the second time, the time when "sending activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect" is called the third time, and the time when the uplink signal in the first cell is received is called the first time. Four moments. Then, in step 501, the network device uses the above-mentioned spatial information to receive the uplink signal in the first cell in the time interval between the second time and the third time. Or, it can also be understood that the offset between the network device at the first time and the fourth time is greater than or equal to a period of time, and before the third time, according to the above-mentioned spatial information, the network device receives information in the first cell The uplink signal. In this embodiment, after the network device sends activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect, it is no longer subject to the restriction on the use of spatial information in step 501.
[0141]
In this embodiment, the downlink signal related to beam failure recovery is a downlink signal related to beam failure recovery sent by the network device to the user equipment. For example, the downlink signal related to beam failure recovery is a beam failure recovery response and/ Or the beam failed to recover in response to the scheduled downlink data information.
[0142]
In this embodiment, the beam failure recovery response may be sent on the search space provided by the high-level parameters, by the Cell Radio Network Temporary Identifier (C-RNTI, Cell Radio Network Temporary Identifier) ​​or modulation and coding strategy cell wireless network Downlink Control Information (DCI, Downlink Control Information) scrambled by a temporary identifier (MCS-C-RNTI, Modulation and Coding Scheme-Cell Radio Network Temporary Identifier).
[0143]
In this embodiment, the high-level parameters can be configured by Radio Resource Control (RRC) signaling.
[0144]
In this embodiment, the high-level parameter can be used to configure a random access response (RAR, Random Access Response) search space set (RAR) that has occurred beam failure recovery (BFR).
[0145]
For example, the high-level parameter is the recovery search space collection identifier (recoverySearchSpaceId).
[0146]
In this embodiment, the "period of time" can be set according to actual needs.
[0147]
For example, the period of time may be a preset number of symbols, slots, or milliseconds (msec).
[0148]
For example, the period of time is K symbols, or K time slots, or K milliseconds, where K is an integer greater than or equal to zero.
[0149]
In this embodiment, the length of the period of time may be related to subcarrier spacing (SCS).
[0150]
For example, the length of the period of time will change under different subcarrier intervals.
[0151]
For example, the number of symbols corresponding to the length of the period of time can be proportional to the SCS, that is, when the SCS is 15KHz, the length of the period of time is 14 symbols; when the SCS is 30KHz, the length of the period of time is 28 symbols ; When the SCS is 60KHz, the time length is 56 symbols, and so on.
[0152]
For another example, when the SCS is 15 kHz and 30 kHz, the first time length (for example, 14 symbols) is used, and when the SCS is higher than 30 kHz, the second time length (for example, 28 symbols) is used.
[0153]
In this embodiment, the length of the period of time may also be related to the capability of the terminal device (UE capability). Specifically, the capability of the terminal device refers to the capability of the terminal device reported to the network device.
[0154]
For example, the length of the period of time may change under different terminal equipment capability levels.
[0155]
For example, in the case of the first UE capability level (or reported information of the first UE capability level), the length of the period of time is the first time length (for example, 14 symbols); at the second UE capability level (or reported In the case of the second UE capability level information), the length of the period of time is the second period of time (for example, 28 symbols), and so on.
[0156]
In this embodiment, the length of the period of time may be configured by higher layer signaling.
[0157]
In this embodiment, the period of time can also be understood as a threshold. When the deviation between the first moment and the fourth moment is greater than or equal to the threshold and before the third moment, the network The device receives the uplink signal in the first cell according to the foregoing spatial information.
[0158]
In this embodiment, the specific explanations of “first moment”, “second moment”, “third moment” and “fourth moment” may be similar to the description in Embodiment 1, and the description will not be repeated here.
[0159]
In this embodiment, the activation signaling may also be an indication signaling.
[0160]
For example, the activation signaling may be at least one of the following:
[0161]
Activation signaling of the Media Access Control (MAC, Media Access Control) layer;
[0162]
Signaling indicating the switching of the antenna panel of the terminal device indicated by the network device; and
[0163]
The target cell is the activation signaling of the first cell.
[0164]
For example, the activation signaling of the MAC layer is used to indicate the spatial transmission filter corresponding to the reception of at least one configured PUCCH resource, for example, the activation signaling indicates the PUCCH-SpatialRelationInfo.
[0165]
In this embodiment, the reconfiguration signaling may be at least one of the following:
[0166]
RRC signaling;
[0167]
Reconfiguration signaling related to the terminal device antenna panel indicated by the network device; and
[0168]
The target cell is the reconfiguration signaling of the first cell.
[0169]
For example, the RRC signaling reconfigures at least one spatial relationship parameter associated with a configured physical uplink control channel (PUCCH, Physical Uplink Control Channel) resource.
[0170]
In this embodiment, the uplink signal related to beam failure recovery may be at least one of the following signals:
[0171]
Beam failure recovery request;
[0172]
Physical Random Access Channel (PRACH) reception (reception) for link failure recovery; and
[0173]
A physical random access channel (PRACH) reception (reception) associated with the downlink signal related to beam failure recovery. Specifically, the physical random access channel (PRACH) reception (reception) and the downlink signal related to beam failure recovery may be time-related, for example, performing the physical random access channel (PRACH) in time slot n ( PRACH) receiving (reception), and sending the corresponding downlink signal related to beam failure recovery (random access response for beam failure recovery) in time slot n+4.
[0174]
In this embodiment, the uplink signal related to beam failure recovery may be carried by higher layer parameters.
[0175]
In this embodiment, the high-level parameter may be carried by RRC signaling.
[0176]
more specifically,
[0177]
The high-level parameters can be used to configure beam failure recovery (BFR) dedicated resources for receiving the uplink signal related to beam failure recovery. For example, the high-level parameter is PRACH-ResourceDedicatedBFR.
[0178]
In this embodiment, the downlink reference signal may be the downlink reference signal of the first cell.
[0179]
In this embodiment, the index of the downlink reference signal may be provided by MAC layer signaling. For example, the index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0180]
For example, the index of the downlink reference signal is q new , and the MAC layer entity selects q new from the RRC layer parameters . For example, the RRC layer parameter is a parameter candidateBeamRSList representing a candidate beam reference signal list.
[0181]
In step 501, when the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell, according to the spatial information related to receiving the uplink signal related to beam failure recovery, the received signal is in the first cell. The uplink signal of a cell; when the second cell where the uplink signal related to beam failure recovery is received is not the same cell as the first cell, the uplink signal received in the first cell is received according to the spatial information related to the transmission of the downlink reference signal signal.
[0182]
FIG. 6 is another schematic diagram of the signal receiving method according to Embodiment 2 of the present invention. As shown in Figure 6, the method includes:
[0183]
Step 601: The network device judges whether the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell. When the judgment result is "Yes", go to step 302, and when the judgment result is "No" ", go to step 303;
[0184]
Step 602: After a period of time after the network device sends a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, it receives and receives the beam The space information related to the uplink signal related to the failure recovery, and the uplink signal in the first cell is received;
[0185]
Step 603: After a period of time after sending the downlink signal related to beam failure recovery, the network device sends the activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, according to and sends the downlink reference Signal-related spatial information, receiving the uplink signal in the first cell.
[0186]
In this embodiment, the first cell may be at least one of the following cells:
[0187]
The cell where the uplink signal related to beam failure recovery is received;
[0188]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0189]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located; and
[0190]
The cell where the downlink signal related to beam failure recovery is transmitted; and
[0191]
At least one or all activated cells; where the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0192]
In the case that the first cell is a cell where the uplink signal related to beam failure recovery is transmitted, the first cell and the second cell are the same cell.
[0193]
In this embodiment, the uplink signal on the first cell is, for example, an uplink signal received on a physical uplink control channel (PUCCH) and/or an uplink signal received on a physical uplink shared channel (PUSCH).
[0194]
For example, the uplink signal received on the physical uplink control channel is used to carry confirmation information (for example, HARQ ACK/NACK information) of the downlink signal scheduled by the first control information. Wherein, the search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery. For example, the search space is provided by recoverySearchSpaceId.
[0195]
It can be seen from the foregoing embodiment that, after a period of time after the network device sends the downlink signal related to beam failure recovery and within the time interval before the activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect, Receive the uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal. Therefore, a solution is provided for the network device to receive the uplink signal according to the spatial information after the beam failure recovery is successful, and the reliability of the network device to receive the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0196]
Example 3
[0197]
The embodiment of the present invention also provides a signal sending method, which is applied to the terminal device side and the network device side, which corresponds to the signal sending method of embodiment 1 and the signal receiving method of embodiment 2, so the specific implementation can refer to Embodiments 1 and 2, the repetitive parts will not be repeated.
[0198]
FIG. 7 is a schematic diagram of a signal sending method according to Embodiment 3 of the present invention. As shown in Figure 7, the method includes:
[0199]
Step 701: The terminal device sends an uplink signal related to beam failure recovery to the network device;
[0200]
Step 702: The network device sends a downlink signal related to beam failure recovery to the user equipment;
[0201]
Step 703: After a period of time after receiving the downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, the terminal device uses and transmits uplink signals related to beam failure recovery or receives The spatial transmission filter that is the same as the spatial transmission filter of the downlink reference signal sends the uplink signal in the first cell to the network device;
[0202]
Step 704: The network device sends activation signaling or reconfiguration signaling to the terminal device.
[0203]
In this embodiment, the implementation methods of the foregoing steps can be referred to the records in Embodiments 1 and 2, which will not be repeated here.
[0204]
It can be seen from the above-mentioned embodiments that the terminal equipment uses and transmits the beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. The related uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell. Therefore, a solution is provided for the terminal device to use the spatial transmission filter to send the uplink signal after the beam failure recovery is successful, and the reliability of the terminal device to send the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0205]
Example 4
[0206]
The embodiment of the present invention also provides a signal sending device, which is applied to the terminal equipment side. This device corresponds to the signal sending method described in Embodiment 1, so its specific implementation can refer to Embodiment 1, and the repetition will not be repeated.
[0207]
FIG. 8 is a schematic diagram of a signal sending device according to Embodiment 4 of the present invention. As shown in FIG. 8, the signal sending device 800 includes:
[0208]
The sending unit 801 is configured to use and send uplink signals related to beam failure recovery after a period of time after receiving downlink signals related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling Or the same spatial transmission filter as the spatial transmission filter that receives the downlink reference signal, and transmits the uplink signal in the first cell.
[0209]
In this embodiment, when the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell, the sending unit 801 uses and transmits the spatial transmission of the uplink signal related to beam failure recovery The spatial transmission filter with the same filter sends the uplink signal in the first cell; when the second cell where the uplink signal related to beam failure recovery is sent is not the same cell as the first cell, the downlink reference signal is used and received The spatial transmission filter is the same as the spatial transmission filter, which sends the uplink signal in the first cell.
[0210]
In this embodiment, for the specific implementation of the function of the sending unit 801, reference may be made to the description of the corresponding steps in Embodiment 1, which will not be repeated here.
[0211]
It can be seen from the above-mentioned embodiments that the terminal equipment uses and transmits the beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. The related uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell. Therefore, a solution is provided for the terminal device to use the spatial transmission filter to send the uplink signal after the beam failure recovery is successful, and the reliability of the terminal device to send the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0212]
Example 5
[0213]
The embodiment of the present invention also provides a signal receiving device, which is applied to the network equipment side. This device corresponds to the signal receiving method described in Embodiment 2, so its specific implementation can refer to Embodiment 2, and the repetition will not be repeated.
[0214]
FIG. 9 is a schematic diagram of a signal receiving device according to Embodiment 5 of the present invention. As shown in FIG. 9, the signal sending device 900 includes:
[0215]
The receiving unit 901 is configured to, after a period of time after sending a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, according to and Receive uplink signals related to beam failure recovery or send spatial information related to downlink reference signals, and receive uplink signals in the first cell.
[0216]
In this embodiment, when the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell, the receiving unit 901 is based on the space related to receiving the uplink signal related to beam failure recovery. Information, received the uplink signal in the first cell; when the second cell where the uplink signal related to beam failure recovery is received is not the same cell as the first cell, according to the spatial information related to sending the downlink reference signal, the received signal is Uplink signal of the first cell.
[0217]
In this embodiment, for the specific implementation of the function of the receiving unit 901, reference may be made to the description of the corresponding steps in Embodiment 2, which will not be repeated here.
[0218]
It can be seen from the foregoing embodiment that, after a period of time after the network device sends the downlink signal related to beam failure recovery and within the time interval before the activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect, Receive the uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal. Therefore, a solution is provided for the network device to receive the uplink signal according to the spatial information after the beam failure recovery is successful, and the reliability of the network device to receive the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0219]
Example 6
[0220]
An embodiment of the present invention also provides a terminal device, and the terminal device includes the signal sending device as described in the fourth embodiment.
[0221]
FIG. 10 is a schematic block diagram of the system configuration of a terminal device according to Embodiment 6 of the present invention. As shown in FIG. 10, the terminal device 1000 may include a processor 1010 and a memory 1020; the memory 1020 is coupled to the processor 1010. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.
[0222]
In one embodiment, the function of the signal sending device may be integrated into the processor 1410. Wherein, the processor 1010 may be configured to: after a period of time after receiving a downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, use and send the signal related to beam failure recovery. The uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell.
[0223]
For example, when the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell, the same spatial transmission filter as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery is used. The filter sends the uplink signal in the first cell.
[0224]
For example, when the second cell where the uplink signal related to beam failure recovery is transmitted is not the same cell as the first cell, the same spatial transmission filter as the spatial transmission filter for receiving the downlink reference signal is used, and the transmission is sent in Uplink signal of the first cell.
[0225]
In another embodiment, the signal sending device can be configured separately from the processor 1010. For example, the signal sending device can be configured as a chip connected to the processor 1010, and the function of the signal sending device can be realized by the control of the processor 1010.
[0226]
As shown in FIG. 10, the terminal device 1000 may further include: a communication module 1030, an input unit 1040, a display 1050, and a power supply 1060. It is worth noting that the terminal device 1000 does not necessarily include all the components shown in FIG. 10; in addition, the terminal device 1000 may also include components not shown in FIG. 10, and related technologies may be referred to.
[0227]
As shown in FIG. 10, the processor 1010 is sometimes called a controller or an operating control, and may include a microprocessor or other processor device and/or logic device. The processor 1010 receives input and controls the operation of the various components of the terminal device 1000. operating.
[0228]
Wherein, the memory 1020 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable devices. Various data can be stored, in addition to the program that executes related information. In addition, the processor 1010 can execute the program stored in the memory 1020 to implement information storage or processing. The functions of other components are similar to the existing ones, so I won't repeat them here. Each component of the terminal device 1000 may be implemented by dedicated hardware, firmware, software, or a combination thereof, without departing from the scope of the present invention.
[0229]
It can be seen from the above-mentioned embodiments that the terminal equipment uses and transmits the beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. The related uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell. Therefore, a solution is provided for the terminal device to use the spatial transmission filter to send the uplink signal after the beam failure recovery is successful, and the reliability of the terminal device to send the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0230]
Example 7
[0231]
The embodiment of the present invention also provides a network device, and the network device includes the signal receiving device as described in the fifth embodiment.
[0232]
FIG. 11 is a schematic diagram of a structure of a network device according to Embodiment 7 of the present invention. As shown in FIG. 11, the network device 1100 may include: a processor 1110 and a memory 1120; the memory 1120 is coupled to the processor 1110. The memory 1120 can store various data; in addition, it also stores an information processing program 1130, and executes the program 1130 under the control of the processor 1110 to receive various information sent by the terminal device and send various information to the terminal device .
[0233]
In one embodiment, the function of the signal receiving device may be integrated into the processor 1110. The processor 1110 may be configured to: after a period of time after sending a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect , Receiving the uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal.
[0234]
For example, when the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell, according to the spatial information related to receiving the uplink signal related to beam failure recovery, the first cell is received in the first cell. Uplink signal of the cell.
[0235]
For example, when the second cell where the uplink signal related to beam failure recovery is received is not the same cell as the first cell, the uplink signal in the first cell is received according to the spatial information related to sending the downlink reference signal.
[0236]
In another embodiment, the signal receiving device can be configured separately from the processor 1110. For example, the signal receiving device can be configured as a chip connected to the processor 1110, and the function of the signal receiving device can be realized by the control of the processor 1110.
[0237]
In addition, as shown in FIG. 11, the network device 1100 may further include: a transceiver 1140, an antenna 1150, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the network device 1100 does not necessarily include all the components shown in FIG. 11; in addition, the network device 1100 may also include components not shown in FIG. 11, and reference may be made to the prior art.
[0238]
It can be seen from the foregoing embodiment that, after a period of time after the network device sends the downlink signal related to beam failure recovery and within the time interval before the activation signaling or reconfiguration signaling or the activation signaling or reconfiguration signaling takes effect, Receive the uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal. Therefore, a solution is provided for the network device to receive the uplink signal according to the spatial information after the beam failure recovery is successful, and the reliability of the network device to receive the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0239]
Example 8
[0240]
An embodiment of the present invention also provides a communication system, including the terminal device described in Embodiment 6 and/or the network device described in Embodiment 7.
[0241]
For example, the structure of the communication system can refer to FIG. 1. As shown in FIG. 1, the communication system 100 includes a network device 101 and a terminal device 102. The terminal device 102 is the same as the terminal device described in the sixth embodiment. The network equipment recorded in 7 is the same, and the repeated content will not be repeated.
[0242]
It can be seen from the above-mentioned embodiments that the terminal equipment uses and transmits the beam failure recovery after a period of time after receiving the downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling. The related uplink signal or the spatial transmission filter that receives the downlink reference signal is the same as the spatial transmission filter, and transmits the uplink signal in the first cell. Therefore, a solution is provided for the terminal device to use the spatial transmission filter to send the uplink signal after the beam failure recovery is successful, and the reliability of the terminal device to send the uplink signal is improved. In addition, the solution has wide applicability, and it is not only applicable to scenarios where beam failure occurs in SpCell, but also to scenarios where beam failure occurs in a secondary cell (SCell, Secondary Cell). In addition, this solution also makes precise provisions for the starting point of the period of time, avoiding unnecessary receiving and sending errors caused by inconsistent understanding of the starting point of the period of time by terminal equipment and network equipment.
[0243]
The above devices and methods in the embodiments of the present invention can be implemented by hardware, or can be implemented by hardware in combination with software. The embodiment of the present invention relates to such a computer-readable program. When the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various components. Kind of methods or steps. The embodiment of the present invention also relates to a storage medium used to store the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.
[0244]
The method/device described in conjunction with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in FIG. 8 may correspond to each software module of the computer program flow or each hardware module. These software modules can respectively correspond to the steps shown in FIG. 2. These hardware modules can be implemented, for example, by using a field programmable gate array (FPGA) to solidify these software modules.
[0245]
The software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor. The processor and the storage medium may be located in the ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a larger-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
[0246]
One or more of the functional blocks and/or one or more combinations of the functional blocks described in FIG. 8 can be implemented as general-purpose processors, digital signal processors (DSPs) for performing the functions described in the present invention. ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof. One or more of the functional blocks described in FIG. 8 and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, and multiple micro-processing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.
[0247]
The present invention has been described above in conjunction with specific embodiments, but it should be clear to those skilled in the art that these descriptions are all exemplary and do not limit the protection scope of the present invention. Those skilled in the art can make various variations and modifications to the present invention based on the spirit and principle of the present invention, and these variations and modifications are also within the scope of the present invention.
[0248]
Regarding the implementation including the above examples, the following supplementary notes are also disclosed:
[0249]
Supplement 1. A signal sending device, the device comprising:
[0250]
A transmitting unit, which is used to use and transmit an uplink signal or an uplink signal related to beam failure recovery after a period of time after receiving a downlink signal related to beam failure recovery and before receiving or applying activation signaling or reconfiguration signaling The same spatial transmission filter as the spatial transmission filter that receives the downlink reference signal sends the uplink signal in the first cell.
[0251]
Supplement 2. The device according to Supplement 1, wherein:
[0252]
When the second cell where the uplink signal related to beam failure recovery is sent is the same cell as the first cell, the sending unit uses and sends a spatial transmission filter for the uplink signal related to beam failure recovery The same spatial transmission filter sends the uplink signal in the first cell.
[0253]
Supplement 3. The device according to Supplement 1 or 2, wherein:
[0254]
When the second cell where the uplink signal related to beam failure recovery is sent is not the same cell as the first cell, the sending unit uses the same spatial transmission filter as the spatial transmission filter for receiving the downlink reference signal The device sends the uplink signal in the first cell.
[0255]
Supplement 4. The device according to Supplement 1, wherein:
[0256]
The downlink signal related to beam failure recovery is the downlink data information scheduled by the beam failure recovery response and/or the beam failure recovery response.
[0257]
Supplement 5. The device according to Supplement 4, wherein:
[0258]
The beam failure recovery response is received on the search space provided by the high-level parameters, and is scrambled by the cell radio network temporary identification (C-RNTI) or the modulation and coding strategy cell radio network temporary identification (MCS-C-RNTI) Downlink control information (DCI).
[0259]
Supplement 6. The device according to Supplement 5, wherein:
[0260]
The high-level parameters are configured by radio resource control (RRC) signaling, and/or,
[0261]
The high-level parameters are used to configure a search space set (set) for receiving beam failure recovery random access response (BFR RAR).
[0262]
Supplement 7. The device according to Supplement 1, wherein:
[0263]
The period of time satisfies at least one of the following:
[0264]
The period of time is a preset number of symbols, time slots or milliseconds;
[0265]
The length of the period of time is configured by higher layer signaling;
[0266]
The length of the period of time is related to the subcarrier spacing (SCS); and
[0267]
The length of the period of time is related to the capability of the terminal equipment (UE capability).
[0268]
Supplement 8. The device according to Supplement 1, wherein:
[0269]
The uplink signal related to beam failure recovery is at least one of the following:
[0270]
Beam failure recovery request;
[0271]
Physical Random Access Channel (PRACH) transmission for link failure recovery; and
[0272]
A physical random access channel (PRACH) transmission (transmission) associated with the downlink signal related to beam failure recovery.
[0273]
Supplement 9. The device according to Supplement 1 or 8, wherein:
[0274]
The uplink signal related to beam failure recovery is configured by high-level parameters.
[0275]
Supplement 10. The device according to Supplement 9, wherein:
[0276]
The high-level parameters are carried by radio resource control (RRC) signaling, and/or,
[0277]
The high-level parameters are used to configure beam failure recovery (BFR) dedicated resources for transmitting the uplink signal related to beam failure recovery.
[0278]
Supplement 11. The device according to Supplement 1, wherein:
[0279]
The downlink reference signal is the downlink reference signal of the first cell, and/or,
[0280]
The index of the downlink reference signal is provided by media access control (MAC) layer signaling.
[0281]
Supplement 12. The device according to Supplement 11, wherein:
[0282]
The index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0283]
Supplement 13. The device according to Supplement 1, wherein:
[0284]
The first cell is at least one of the following cells:
[0285]
A cell where the uplink signal related to beam failure recovery is transmitted;
[0286]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0287]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located;
[0288]
The cell where the downlink signal related to beam failure recovery is received; and
[0289]
At least one or all activated cells; wherein, the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0290]
Supplement 14. The device according to Supplement 13, wherein:
[0291]
The uplink signal in the first cell is an uplink signal sent on a physical uplink control channel (PUCCH) and/or an uplink signal sent on a physical uplink shared channel (PUSCH).
[0292]
Supplement 15. The device according to Supplement 14, wherein:
[0293]
The uplink signal sent on the physical uplink control channel is used to carry the confirmation information of the downlink signal scheduled by the first control information.
[0294]
Supplement 16. The device according to Supplement 15, wherein:
[0295]
The search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery.
[0296]
Supplement 17. The device according to Supplement 1, wherein:
[0297]
The activation signaling is at least one of the following:
[0298]
Activation signaling of the MAC layer;
[0299]
Signaling instructing terminal equipment antenna panel switching; and
[0300]
The target cell is the activation signaling of the first cell.
[0301]
Supplement 18. The device according to Supplement 17, wherein:
[0302]
The activation signaling of the MAC layer is used to indicate the spatial transmission filter corresponding to the PUCCH resource sent.
[0303]
Supplement 19. The device according to Supplement 1, wherein:
[0304]
The reconfiguration signaling is at least one of the following:
[0305]
RRC signaling;
[0306]
Reconfiguration signaling related to the antenna panel of the terminal equipment; and
[0307]
The target cell is the reconfiguration signaling of the first cell.
[0308]
Supplement 20. The device according to Supplement 19, wherein:
[0309]
The RRC signaling reconfigures at least one spatial relationship parameter associated with the configured PUCCH resource.
[0310]
Appendix 21. A signal receiving device, the device comprising:
[0311]
The receiving unit is configured to, after a period of time after sending a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, according to and Receive uplink signals related to beam failure recovery or send spatial information related to downlink reference signals, and receive uplink signals in the first cell.
[0312]
Supplement 22. The device according to Supplement 21, wherein:
[0313]
When the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell, the receiving unit uses spatial information related to receiving the uplink signal related to beam failure recovery, Receive the uplink signal in the first cell.
[0314]
Supplement 23. The device according to Supplement 21 or 22, wherein:
[0315]
When the second cell where the uplink signal related to beam failure recovery is received is not the same cell as the first cell, the receiving unit receives the uplink signal in the first cell according to the spatial information related to sending the downlink reference signal. The uplink signal.
[0316]
Supplement 24. The device according to Supplement 21, wherein:
[0317]
The downlink signal related to beam failure recovery is the downlink data information scheduled by the beam failure recovery response and/or the beam failure recovery response.
[0318]
Supplement 25. The device according to Supplement 24, wherein:
[0319]
The beam failure recovery response is sent on the search space provided by the high-level parameters, and is scrambled by the cell radio network temporary identification (C-RNTI) or the modulation and coding strategy cell radio network temporary identification (MCS-C-RNTI) Downlink control information (DCI).
[0320]
Supplement 26. The device according to Supplement 25, wherein:
[0321]
The high-level parameters are configured by radio resource control (RRC) signaling, and/or,
[0322]
The high-level parameters are used to configure a search space set (set) of a beam failure recovery random access response (BFR RAR).
[0323]
Supplement 27. The device according to Supplement 21, wherein:
[0324]
The period of time satisfies at least one of the following:
[0325]
The period of time is a preset number of symbols, time slots or milliseconds;
[0326]
The length of the period of time is configured by higher layer signaling;
[0327]
The length of the period of time is related to the subcarrier spacing (SCS); and
[0328]
The length of the period of time is related to the capability of the terminal equipment (UE capability).
[0329]
Supplement 28. The device according to Supplement 21, wherein:
[0330]
The uplink signal related to beam failure recovery is at least one of the following:
[0331]
Beam failure recovery request;
[0332]
Physical Random Access Channel (PRACH) reception (reception) for link failure recovery; and
[0333]
A physical random access channel (PRACH) reception (reception) associated with the downlink signal related to beam failure recovery.
[0334]
Supplement 29. The device according to Supplement 21 or 28, wherein:
[0335]
The uplink signal related to beam failure recovery is configured by high-level parameters.
[0336]
Supplement 30. The device according to Supplement 29, wherein:
[0337]
The high-level parameters are carried by radio resource control (RRC) signaling, and/or,
[0338]
The high-level parameters are used to configure beam failure recovery (BFR) dedicated resources for receiving the uplink signal related to beam failure recovery.
[0339]
Supplement 31. The device according to Supplement 21, wherein:
[0340]
The downlink reference signal is the downlink reference signal of the first cell, and/or,
[0341]
The index of the downlink reference signal is provided by media access control (MAC) layer signaling.
[0342]
Supplement 32. The device according to Supplement 31, wherein:
[0343]
The index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0344]
Supplement 33. The device according to Supplement 21, wherein:
[0345]
The first cell is at least one of the following cells:
[0346]
Receiving the cell where the uplink signal related to beam failure recovery is located;
[0347]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0348]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located;
[0349]
The cell where the downlink signal related to beam failure recovery is transmitted; and
[0350]
At least one or all activated cells; wherein, the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0351]
Supplement 34. The device according to Supplement 33, wherein:
[0352]
The uplink signal in the first cell is an uplink signal received on a physical uplink control channel (PUCCH) and/or an uplink signal received on a physical uplink shared channel (PUSCH).
[0353]
Supplement 35. The device according to Supplement 34, wherein:
[0354]
The uplink signal received on the physical uplink control channel is used to carry confirmation information of the downlink signal scheduled by the first control information.
[0355]
Supplement 36. The device according to Supplement 35, wherein:
[0356]
The search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery.
[0357]
Supplement 37. The device according to Supplement 21, wherein:
[0358]
The activation signaling is at least one of the following:
[0359]
Activation signaling of the MAC layer;
[0360]
Signaling indicating the switching of the antenna panel of the terminal device indicated by the network device; and
[0361]
The target cell is the activation signaling of the first cell.
[0362]
Supplement 38. The device according to Supplement 37, wherein:
[0363]
The activation signaling of the MAC layer is used to indicate to receive the spatial information corresponding to the PUCCH resource.
[0364]
Supplement 39. The device according to Supplement 21, wherein:
[0365]
The reconfiguration signaling is at least one of the following:
[0366]
RRC signaling;
[0367]
Reconfiguration signaling related to the antenna panel of the terminal device indicated by the network device; and
[0368]
The target cell is the reconfiguration signaling of the first cell.
[0369]
Supplement 40. The device according to Supplement 39, wherein:
[0370]
The RRC signaling reconfigures at least one spatial relationship parameter associated with the configured PUCCH resource.
[0371]
Supplement 41. A terminal device comprising the device according to any one of Supplements 1-20.
[0372]
Supplement 42. A network device comprising the device according to any one of Supplements 21-40.
[0373]
Supplement 43. A communication system, the communication system comprising the terminal device according to Supplement 41 and/or the network device according to Supplement 42.
[0374]
Supplement 44. A signal sending method, the method comprising:
[0375]
After a period of time after receiving a downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, the terminal device uses and transmits uplink signals related to beam failure recovery or receives downlink reference signals The spatial transmission filter is the same as the spatial transmission filter, which sends the uplink signal in the first cell.
[0376]
Supplement 45. The method according to Supplement 44, wherein the use of the same spatial transmission filter as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery or receiving the downlink reference signal is transmitted in the first cell The uplink signals include:
[0377]
When the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell, use the same spatial transmission filter as the spatial transmission filter that transmits the uplink signal related to beam failure recovery The filter sends the uplink signal in the first cell.
[0378]
Supplement 46. The method according to Supplement 44 or 45, wherein the use of the same spatial transmission filter as the spatial transmission filter for transmitting the uplink signal related to beam failure recovery or receiving the downlink reference signal is transmitted in the first The uplink signal of a cell includes:
[0379]
When the second cell where the uplink signal related to beam failure recovery is transmitted is not the same cell as the first cell, the same spatial transmission filter as the spatial transmission filter for receiving the downlink reference signal is used, and the transmission is sent in Uplink signal of the first cell.
[0380]
Appendix 47. The method according to Appendix 44, wherein:
[0381]
The downlink signal related to beam failure recovery is the downlink data information scheduled by the beam failure recovery response and/or the beam failure recovery response.
[0382]
Supplement 48. The method according to Supplement 47, wherein:
[0383]
The beam failure recovery response is received on the search space provided by the high-level parameters, and is scrambled by the cell radio network temporary identification (C-RNTI) or the modulation and coding strategy cell radio network temporary identification (MCS-C-RNTI) Downlink control information (DCI).
[0384]
Supplement 49. The method according to Supplement 48, wherein:
[0385]
The high-level parameters are configured by radio resource control (RRC) signaling, and/or,
[0386]
The high-level parameters are used to configure a search space set (set) for receiving beam failure recovery random access response (BFR RAR).
[0387]
Supplement 50. The method according to Supplement 44, wherein:
[0388]
The period of time satisfies at least one of the following:
[0389]
The period of time is a preset number of symbols, time slots or milliseconds;
[0390]
The length of the period of time is configured by higher layer signaling;
[0391]
The length of the period of time is related to the subcarrier spacing (SCS); and
[0392]
The length of the period of time is related to the capability of the terminal equipment (UE capability).
[0393]
Supplement 51. The method according to Supplement 44, wherein:
[0394]
The uplink signal related to beam failure recovery is at least one of the following:
[0395]
Beam failure recovery request;
[0396]
Physical Random Access Channel (PRACH) transmission for link failure recovery; and
[0397]
A physical random access channel (PRACH) transmission (transmission) associated with the downlink signal related to beam failure recovery.
[0398]
Supplement 52. The method according to Supplement 44 or 51, wherein:
[0399]
The uplink signal related to beam failure recovery is configured by high-level parameters.
[0400]
Supplement 53. The method according to Supplement 52, wherein:
[0401]
The high-level parameters are carried by radio resource control (RRC) signaling, and/or,
[0402]
The high-level parameters are used to configure beam failure recovery (BFR) dedicated resources for transmitting the uplink signal related to beam failure recovery.
[0403]
Supplement 54. The method according to Supplement 44, wherein:
[0404]
The downlink reference signal is the downlink reference signal of the first cell, and/or,
[0405]
The index of the downlink reference signal is provided by media access control (MAC) layer signaling.
[0406]
Supplement 55. The method according to Supplement 54, wherein:
[0407]
The index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0408]
Supplement 56. The method according to Supplement 44, wherein:
[0409]
The first cell is at least one of the following cells:
[0410]
A cell where the uplink signal related to beam failure recovery is transmitted;
[0411]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0412]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located;
[0413]
The cell where the downlink signal related to beam failure recovery is received; and
[0414]
At least one or all activated cells; wherein, the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0415]
Supplement 57. The method according to Supplement 56, wherein:
[0416]
The uplink signal in the first cell is an uplink signal sent on a physical uplink control channel (PUCCH) and/or an uplink signal sent on a physical uplink shared channel (PUSCH).
[0417]
Supplement 58. The method according to Supplement 57, wherein:
[0418]
The uplink signal sent on the physical uplink control channel is used to carry the confirmation information of the downlink signal scheduled with the first control information.
[0419]
Supplement 59. The method according to Supplement 58, wherein:
[0420]
The search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery.
[0421]
Supplement 60. The method according to Supplement 44, wherein:
[0422]
The activation signaling is at least one of the following:
[0423]
Activation signaling of the MAC layer;
[0424]
Signaling instructing terminal equipment antenna panel switching; and
[0425]
The target cell is the activation signaling of the first cell.
[0426]
Supplement 61. The method according to Supplement 60, wherein:
[0427]
The activation signaling of the MAC layer is used to indicate the spatial transmission filter corresponding to the PUCCH resource sent.
[0428]
Supplement 62. The method according to Supplement 44, wherein:
[0429]
The reconfiguration signaling is at least one of the following:
[0430]
RRC signaling;
[0431]
Reconfiguration signaling related to the antenna panel of the terminal equipment; and
[0432]
The target cell is the reconfiguration signaling of the first cell.
[0433]
Supplement 63. The method according to Supplement 62, wherein:
[0434]
The RRC signaling reconfigures at least one spatial relationship parameter associated with the configured PUCCH resource.
[0435]
Supplement 64. A signal receiving method, the method comprising:
[0436]
After a period of time after the network device has sent a downlink signal related to beam failure recovery, and before sending activation signaling or reconfiguration signaling or before the activation signaling or reconfiguration signaling takes effect, the network device receives and receives the beam failure Recover the relevant uplink signal or send the spatial information related to the downlink reference signal, and receive the uplink signal in the first cell.
[0437]
Supplement 65. The method according to Supplement 64, wherein the receiving an uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal includes:
[0438]
When the second cell where the uplink signal related to beam failure recovery is received is the same cell as the first cell, according to the spatial information related to receiving the uplink signal related to beam failure recovery, the first cell is received in the first cell. Uplink signal of the cell.
[0439]
Supplement 66. The method according to Supplement 64 or 65, wherein the receiving an uplink signal in the first cell according to spatial information related to receiving an uplink signal related to beam failure recovery or sending a downlink reference signal includes :
[0440]
When the second cell where the uplink signal related to beam failure recovery is received is not the same cell as the first cell, the uplink signal in the first cell is received according to the spatial information related to sending the downlink reference signal.
[0441]
Supplement 67. The method according to Supplement 64, wherein:
[0442]
The downlink signal related to beam failure recovery is the downlink data information scheduled by the beam failure recovery response and/or the beam failure recovery response.
[0443]
Supplement 68. The method according to Supplement 67, wherein:
[0444]
The beam failure recovery response is sent on the search space provided by the high-level parameters, and is scrambled by the cell radio network temporary identification (C-RNTI) or the modulation and coding strategy cell radio network temporary identification (MCS-C-RNTI) Downlink control information (DCI).
[0445]
Supplement 69. The method according to Supplement 68, wherein:
[0446]
The high-level parameters are configured by radio resource control (RRC) signaling, and/or,
[0447]
The high-level parameters are used to configure a search space set (set) of a beam failure recovery random access response (BFR RAR).
[0448]
Supplement 70. The method according to Supplement 64, wherein:
[0449]
The period of time satisfies at least one of the following:
[0450]
The period of time is a preset number of symbols, time slots or milliseconds;
[0451]
The length of the period of time is configured by higher layer signaling;
[0452]
The length of the period of time is related to the subcarrier spacing (SCS); and
[0453]
The length of the period of time is related to the capability of the terminal equipment (UE capability).
[0454]
Supplement 71. The method according to Supplement 64, wherein:
[0455]
The uplink signal related to beam failure recovery is at least one of the following:
[0456]
Beam failure recovery request;
[0457]
Physical Random Access Channel (PRACH) reception (reception) for link failure recovery; and
[0458]
A physical random access channel (PRACH) reception (reception) associated with the downlink signal related to beam failure recovery.
[0459]
Supplement 72. The method according to Supplement 64 or 71, wherein:
[0460]
The uplink signal related to beam failure recovery is configured by high-level parameters.
[0461]
Supplement 73. The method according to Supplement 72, wherein:
[0462]
The high-level parameters are carried by radio resource control (RRC) signaling, and/or,
[0463]
The high-level parameters are used to configure beam failure recovery (BFR) dedicated resources for receiving the uplink signal related to beam failure recovery.
[0464]
Supplement 74. The method according to Supplement 64, wherein:
[0465]
The downlink reference signal is the downlink reference signal of the first cell, and/or,
[0466]
The index of the downlink reference signal is provided by media access control (MAC) layer signaling.
[0467]
Supplement 75. The method according to Supplement 74, wherein:
[0468]
The index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[0469]
Supplement 76. The method according to Supplement 64, wherein:
[0470]
The first cell is one of the following cells:
[0471]
Receiving the cell where the uplink signal related to beam failure recovery is located;
[0472]
The cell where the random process corresponding to the transmission of the uplink signal related to beam failure recovery is initiated;
[0473]
The cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located;
[0474]
The cell where the downlink signal related to beam failure recovery is transmitted; and
[0475]
At least one or all activated cells; wherein, the activated cell refers to a cell activated by a network device for a terminal device through instruction signaling.
[0476]
Supplement 77. The method according to Supplement 76, wherein:
[0477]
The uplink signal in the first cell is an uplink signal received on a physical uplink control channel (PUCCH) and/or an uplink signal received on a physical uplink shared channel (PUSCH).
[0478]
Supplement 78. The method according to Supplement 77, wherein:
[0479]
The uplink signal received on the physical uplink control channel is used to carry confirmation information of the downlink signal scheduled by the first control information.
[0480]
Supplement 79. The method according to Supplement 78, wherein:
[0481]
The search space associated with the first control information is the same as the search space associated with the downlink signal related to beam failure recovery.
[0482]
Supplement 80. The method according to Supplement 64, wherein:
[0483]
The activation signaling is at least one of the following:
[0484]
Activation signaling of the MAC layer;
[0485]
Signaling indicating the switching of the antenna panel of the terminal device indicated by the network device; and
[0486]
The target cell is the activation signaling of the first cell.
[0487]
Supplement 81. The method according to Supplement 80, wherein:
[0488]
The activation signaling of the MAC layer is used to indicate to receive the spatial information corresponding to the PUCCH resource.
[0489]
Supplement 82. The method according to Supplement 64, wherein:
[0490]
The reconfiguration signaling is at least one of the following:
[0491]
RRC signaling;
[0492]
Reconfiguration signaling related to the antenna panel of the terminal device indicated by the network device; and
[0493]
The target cell is the reconfiguration signaling of the first cell.
[0494]
Supplement 83. The method according to Supplement 82, wherein:
[0495]
The RRC signaling reconfigures at least one spatial relationship parameter associated with the configured PUCCH resource.
Claims
[Claim 1]
A signal sending device, the device comprising: a sending unit, which is used for a period of time after receiving a downlink signal related to beam failure recovery, and before receiving or applying activation signaling or reconfiguration signaling, The same spatial transmission filter as the spatial transmission filter that transmits the uplink signal related to beam failure recovery or receives the downlink reference signal, and transmits the uplink signal in the first cell.
[Claim 2]
The apparatus according to claim 1, wherein, when the second cell where the uplink signal related to beam failure recovery is transmitted is the same cell as the first cell, the sending unit uses and sends the beam The spatial transmission filter of the uplink signal related to the failure recovery is the same as the spatial transmission filter, and the uplink signal in the first cell is sent.
[Claim 3]
The apparatus according to claim 1 or 2, wherein when the second cell where the uplink signal related to beam failure recovery is transmitted is not the same cell as the first cell, the sending unit uses and receives the The spatial transmission filter of the downlink reference signal is the same as the spatial transmission filter, and the uplink signal in the first cell is sent.
[Claim 4]
The apparatus according to claim 1, wherein the downlink signal related to beam failure recovery is downlink data information scheduled by a beam failure recovery response and/or a beam failure recovery response.
[Claim 5]
The apparatus according to claim 4, wherein the beam failure recovery response is received on a search space provided by high-level parameters, and is determined by a cell radio network temporary identification (C-RNTI) or a modulation and coding strategy cell radio network temporary Identifies (MCS-C-RNTI) scrambled downlink control information (DCI).
[Claim 6]
The apparatus according to claim 5, wherein the high-level parameters are configured by radio resource control (RRC) signaling, and/or the high-level parameters are used to configure the reception beam failure recovery random access response (BFR RAR) Search space set (set).
[Claim 7]
The apparatus according to claim 1, wherein the period of time satisfies at least one of the following: the period of time is a preset number of symbols, time slots, or milliseconds; the length of the period of time is configured by higher layer signaling The length of the period of time is related to the subcarrier spacing (SCS); and the length of the period of time is related to the capability of the terminal device (UE capability).
[Claim 8]
The apparatus according to claim 1, wherein the uplink signal related to beam failure recovery is at least one of the following: beam failure recovery request; physical random access channel (PRACH) transmission for link failure recovery ); and a physical random access channel (PRACH) transmission (transmission) associated with the downlink signal related to beam failure recovery.
[Claim 9]
The apparatus according to claim 1 or 8, wherein the uplink signal related to beam failure recovery is configured by a higher layer parameter.
[Claim 10]
The apparatus according to claim 9, wherein the high-level parameters are carried by radio resource control (RRC) signaling, and/or, the high-level parameters are used to configure beam failure recovery (BFR) to send the AND beam exclusively Resources related to the failure to recover the uplink signal.
[Claim 11]
The apparatus according to claim 1, wherein the downlink reference signal is a downlink reference signal of the first cell, and/or, the index of the downlink reference signal is provided by signaling of a medium access control (MAC) layer .
[Claim 12]
The apparatus according to claim 11, wherein the index of the downlink reference signal is selected by the MAC layer from high-level parameters.
[Claim 13]
The apparatus according to claim 1, wherein the first cell is at least one of the following cells: a cell where the uplink signal related to beam failure recovery is transmitted; initiating the uplink signal related to beam failure recovery The cell where the random process corresponding to the transmission of the beam is located; the cell where the configuration information of the random process corresponding to the transmission of the uplink signal related to beam failure recovery is located; the cell where the downlink signal related to beam failure recovery is received; And at least one or all activated cells; wherein, the activated cell refers to a cell activated by the network device for the terminal device through instruction signaling.
[Claim 14]
The apparatus according to claim 13, wherein the uplink signal in the first cell is an uplink signal sent on a physical uplink control channel (PUCCH) and/or a physical uplink shared channel (PUSCH) Uplink signal.
[Claim 15]
The apparatus according to claim 14, wherein the uplink signal sent on the physical uplink control channel is used to carry confirmation information of the downlink signal scheduled by the first control information.
[Claim 16]
The apparatus according to claim 1, wherein the activation signaling is at least one of the following: activation signaling of the MAC layer; signaling instructing terminal equipment antenna panel switching; and the target cell is the activation of the first cell Signaling.
[Claim 17]
The apparatus according to claim 16, wherein the activation signaling of the MAC layer is used to indicate the spatial transmission filter corresponding to the PUCCH resource to be sent.
[Claim 18]
The apparatus according to claim 1, wherein the reconfiguration signaling is at least one of the following: RRC signaling; reconfiguration signaling related to an antenna panel of a terminal device; and a target cell is a reconfiguration of the first cell Configure signaling.
[Claim 19]
The apparatus according to claim 18, wherein the RRC signaling reconfigures a spatial relationship parameter associated with at least one configured PUCCH resource.
[Claim 20]
A signal receiving device, the device comprising: a receiving unit, which is used to send activation signaling or reconfiguration signaling or the activation signal after a period of time after sending a downlink signal related to beam failure recovery; Before the command or reconfiguration signaling takes effect, the uplink signal in the first cell is received according to the spatial information related to the reception of the uplink signal related to beam failure recovery or the transmission of the downlink reference signal.