Communication method, communication device, communication system, and storage medium
By collaboratively determining the triggering event of beam quality through the terminal and network equipment, the timely and accurate sending of beam reports is ensured, which solves the signaling waste and communication quality problems caused by improper configuration of beam report intervals and improves communication efficiency and stability.
Patent Information
- Application Number
- PCT/CN2024/083100
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-09-25
AI Technical Summary
In the prior art, improper interval configuration of beam reporting may lead to signaling waste or degradation of communication quality, and fail to reflect beam quality changes in a timely manner.
The terminal determines the beam quality of the first beam based on the first reference signal resource, and determines whether to send a beam report through a trigger event. The network device configures or indicates the TCI status to help the terminal determine that the beam quality meets the trigger condition and sends a report.
Reduce signaling overhead, ensure timely and accurate sending of beam reports, improve communication quality, and avoid waste or quality degradation caused by improper intervals.
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Figure CN2024083100_25092025_PF_FP_ABST
Abstract
Description
Communication method, communication device, communication system, and storage medium Technical Field
[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, a communication device, a communication system, and a storage medium. Background Art
[0002] In communication systems, to ensure coverage, channels and / or signals are typically transmitted and received based on beams. Alternatively, to ensure beam-based communication quality, a terminal typically performs beam measurement and reports a beam report to a network device based on the beam measurement results. The network device can then schedule a beam with higher beam quality for channel and / or signal transmission and reception based on the beam measurement results in the beam report.
[0003] Summary of the Invention
[0004] The present disclosure provides a communication method, a communication device, a communication system, and a storage medium.
[0005] According to a first aspect of an embodiment of the present disclosure, a communication method is proposed, which is executed by a terminal and includes:
[0006] determining at least one first reference signal resource, where the first reference signal resource is used to determine a first beam;
[0007] Determining, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0008] When the terminal meets at least one triggering event, the beam report is sent.
[0009] According to a second aspect of an embodiment of the present disclosure, a communication method is provided, which is performed by a network device. The method includes:
[0010] Sending first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or
[0011] Sending first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource.
[0012] The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
[0013] According to a third aspect of an embodiment of the present disclosure, a communication method is provided for use in a communication system, the communication system including a terminal and a network device, the method including:
[0014] The network device sends first configuration information and / or first information, where the first configuration information is used to configure at least one first reference signal resource; the first information is used to indicate and / or activate a TCI state, where the TCI state is used by a terminal to determine at least one first reference signal resource, wherein the first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0015] The terminal determines at least one first reference signal resource;
[0016] The terminal determines, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0017] When the terminal satisfies at least one triggering event, the terminal sends the beam report.
[0018] According to a fourth aspect of an embodiment of the present disclosure, a terminal is provided, including:
[0019] a processing module, configured to determine at least one first reference signal resource, where the first reference signal resource is used to determine a first beam;
[0020] The processing module is further configured to determine, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0021] The transceiver module is used to send the beam report when the terminal meets at least one triggering event.
[0022] According to a fifth aspect of an embodiment of the present disclosure, a network device is provided, including:
[0023] a transceiver module, configured to send first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or
[0024] The transceiver module is configured to send first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource.
[0025] The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
[0026] According to a sixth aspect of an embodiment of the present disclosure, a communication device is provided, including:
[0027] one or more processors;
[0028] The processor is used to call instructions to enable the communication device to execute the communication method described in any one of the first aspect to the second aspect.
[0029] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, characterized in that it includes a terminal and a network device, wherein the network device is configured to implement the communication method described in the first aspect, and the terminal is configured to implement the communication method described in the second aspect.
[0030] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions, and is characterized in that when the instructions are executed on a communication device, the communication device executes the communication method as described in any one of the first to second aspects. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0032] FIG1 is a schematic diagram of the architecture of some communication systems provided by embodiments of the present disclosure;
[0033] FIG2A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0034] FIG3A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0035] FIG3B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0036] FIG4A is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0037] FIG4B is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0038] FIG5 is a flow chart of a communication method provided in yet another embodiment of the present disclosure;
[0039] FIG6A is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;
[0040] FIG6B is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;
[0041] FIG7A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;
[0042] FIG7B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION
[0043] The embodiments of the present disclosure provide a communication method, a communication device, a communication system, and a storage medium.
[0044] In a first aspect, an embodiment of the present disclosure provides a communication method, which is executed by a terminal. The method includes:
[0045] determining at least one first reference signal resource, where the first reference signal resource is used to determine a first beam;
[0046] Determining, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0047] When the terminal meets at least one triggering event, the beam report is sent.
[0048] In the above embodiment, the terminal determines at least one first reference signal resource in order to determine at least one first beam based on the at least one first reference signal resource. Subsequently, the terminal determines whether the beam satisfies a trigger event based on the beam quality of the first beam, and sends a beam report when the trigger event is satisfied. It can be seen that the disclosed embodiment proposes a method for a terminal to determine the first beam corresponding to a trigger event, so that the terminal successfully determines the first beam, and then facilitates the terminal to subsequently determine whether the beam satisfies a trigger event based on the beam quality of the first beam, and send a beam report when the trigger event is satisfied, thereby ensuring the successful transmission of the beam report. Moreover, in the method disclosed herein, the terminal sends the beam report based on a trigger event. By flexibly setting the trigger event, the terminal can report the beam report promptly and accurately at the appropriate time, thereby avoiding the situation where "the beam report interval configured by the network device is too short, which may make the best beams reported twice the same without change, thereby wasting signaling; and the beam report interval configured by the network device is too long, which may cause the beam quality to change but the beam report is not sent due to the reporting time not being reached, thereby affecting the communication quality." Therefore, the method disclosed herein can reduce signaling overhead, and can also ensure that when the beam quality changes, it can be reported in time to ensure the communication quality.
[0049] In conjunction with some embodiments of the first aspect, in some embodiments, determining at least one first reference signal resource includes at least one of the following:
[0050] receiving first configuration information, where the first configuration information is used to configure at least one first reference signal resource;
[0051] determining at least one first reference signal resource based on a transmission configuration indication TCI state;
[0052] At least one first reference signal resource is determined based on protocol agreement.
[0053] In conjunction with some embodiments of the first aspect, in some embodiments, determining at least one first reference signal resource based on the TCI state includes at least one of the following:
[0054] Determine at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the control resource set CORESET of the terminal;
[0055] determining at least one first reference signal resource based on a reference signal resource corresponding to an indicated TCI state, wherein the indicated TCI state may be used for transmission of at least two channels and / or at least two reference signals;
[0056] At least one first reference signal resource is determined based on the reference signal resource corresponding to the activated TCI state; wherein
[0057] The TCI state includes at least one of a downlink TCI state (DL TCI state), a joint TCI state, and an uplink TCI state (UL TCI state).
[0058] In conjunction with some embodiments of the first aspect, in some embodiments, determining at least one first reference signal resource based on the TCI state includes:
[0059] The reference signal resources corresponding to the TCI state include two reference signal resources, and a reference signal resource of type D of the quasi co-location type QCL type among the reference signal resources corresponding to the TCI state is determined as the first reference signal resource.
[0060] In combination with some embodiments of the first aspect, in some embodiments, determining at least one first reference signal resource based on a reference signal resource corresponding to a TCI state corresponding to a CORESET of the terminal includes:
[0061] If the number of TCI states corresponding to the multiple CORESETs of the terminal exceeds the first value, select some CORESETs from the multiple CORESETs according to a priority rule;
[0062] The reference signal resource corresponding to the TCI state corresponding to the part of CORESETs is determined as the first reference signal resource.
[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the priority rule includes at least one of the following:
[0064] Prioritize CORESET with short search space set SS set period;
[0065] Prioritize the CORESET with a larger CORESET ID.
[0066] In combination with some embodiments of the first aspect, in some embodiments, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state, and the unified TCI state can be used for transmission of at least two channels and / or at least two reference signals.
[0067] In combination with some embodiments of the first aspect, in some embodiments, the indicated TCI state or the unified TCI state is indicated by media access control layer control unit MAC CE signaling, or the indicated TCI state or unified TCI state is indicated by downlink control information DCI signaling and MAC CE signaling.
[0068] In combination with some embodiments of the first aspect, in some embodiments, the MAC CE signaling indicating the indicated TCI state or the unified TCI state includes:
[0069] The MAC CE signaling activates a TCI state corresponding to a first codepoint, where the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of multiple codepoints corresponding to a TCI state indication field in the DCI signaling; and / or
[0070] The MAC CE signaling and the DCI signaling indicating the indicated TCI state or the unified TCI state include:
[0071] The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, and the TCI state indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state.
[0072] In combination with some embodiments of the first aspect, in some embodiments, the activated TCI state is indicated by MACCE signaling.
[0073] In combination with some embodiments of the first aspect, in some embodiments, the MAC CE signaling indicates an activated TCI state, including at least one of the following:
[0074] The MACCE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling;
[0075] When the TCI state corresponding to the CORESET is not a unified TCI state, the TCI state corresponding to the CORESET is indicated by MAC CE signaling, where the MAC CE signaling includes a CORESET ID of the CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate the TCI state corresponding to the CORESET.
[0076] In the above embodiment, a method is provided for how a terminal specifically determines a first reference signal resource, so that the terminal can successfully determine at least one first reference signal resource, and then the terminal can successfully determine a first beam based on the first reference signal resource. The terminal can then determine whether the beam meets the trigger event based on the beam quality of the first beam, and send a beam report when the trigger event is met, thereby ensuring the successful sending of the beam report.
[0077] In conjunction with some embodiments of the first aspect, in some embodiments, the triggering event includes at least one of the following:
[0078] The beam quality of the first beam is lower than a first threshold value;
[0079] The beam quality of the second beam is higher than a second threshold value;
[0080] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0081] In conjunction with some embodiments of the first aspect, in some embodiments, the beam quality includes at least one of the following:
[0082] Layer 1 reference signal received strength L1-RSRP;
[0083] Layer 1 signal to interference plus noise ratio L1-SINR;
[0084] Uplink transmit power.
[0085] In the above embodiment, the specific content of the triggering event is defined so that the terminal can successfully determine when to send the beam report based on the triggering event to achieve successful sending of the beam report.
[0086] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:
[0087] Second configuration information is received, where the second configuration information is used to configure a third reference signal resource, and the third reference signal resource is used to determine the second beam.
[0088] In the above embodiment, the network device will also configure a third reference signal resource for determining the second beam to the terminal, so that the terminal can determine the second beam based on the third reference signal resource, and then the terminal can subsequently determine whether the beam meets the trigger event based on the beam quality of the second beam, and send a beam report when the trigger event is met, thereby ensuring the successful sending of the beam report.
[0089] In conjunction with some embodiments of the first aspect, in some embodiments, the beam report includes at least one of the following:
[0090] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0091] beam quality of a reference signal resource corresponding to the beam report;
[0092] Sounding Reference Signal (SRS) port support capability of the terminal;
[0093] a power headroom of the terminal;
[0094] The maximum allowed radiated MPE power back-off change of the terminal;
[0095] Uplink transmission power of the terminal;
[0096] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0097] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0098] In the above embodiment, the specific content of the beam report is defined so that the terminal can successfully report the beam report based on the content, and the network equipment can schedule a beam with higher beam quality for sending and receiving channels and / or signals based on the content included in the beam report (such as beam quality), thereby ensuring communication efficiency.
[0099] In conjunction with some embodiments of the first aspect, in some embodiments, the indicated TCI state or unified TCI state is used to transmit at least two of the following:
[0100] Physical downlink control channel PDCCH;
[0101] Physical downlink shared channel PDSCH;
[0102] Physical uplink control channel PUCCH;
[0103] Physical uplink shared channel PUSCH;
[0104] Channel State Information Reference Signal CSI-RS;
[0105] Sounding Reference Signal SRS.
[0106] In the above embodiment, the purpose of the indicated TCI state or unified TCI state is defined so that the terminal can perform corresponding operations based on the purpose of the indicated TCI state or unified TCI state, ensuring communication stability and communication quality.
[0107] In a second aspect, an embodiment of the present disclosure provides a communication method, which is performed by a network device. The method includes:
[0108] Sending first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or
[0109] Sending first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource.
[0110] The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
[0111] In the above embodiment, the network device will directly send the first configuration information to the terminal to configure at least one first reference signal resource, and the terminal can determine the first beam based on the first reference signal resource, and / or the network device will send the first information to the terminal to indicate and / or activate the TCI state, and the terminal can determine the first beam based on the first information indicating and / or activating the TCI state. It can be seen that the embodiment of the present disclosure proposes a method for a terminal to determine the first beam corresponding to a trigger event, so that the terminal can successfully determine the first beam, and then the terminal can subsequently determine whether the beam meets the trigger event based on the beam quality of the first beam, and send a beam report when the trigger event is met, thereby ensuring the successful sending of the beam report. Moreover, in the method disclosed herein, the terminal sends the beam report based on a trigger event. By flexibly setting the trigger event, the terminal can report the beam report promptly and accurately at the appropriate time, thereby avoiding the situation where "the beam report interval configured by the network device is too short, which may make the best beams reported twice the same without change, thereby wasting signaling; and the beam report interval configured by the network device is too long, which may cause the beam quality to change but the beam report is not sent due to the reporting time not being reached, thereby affecting the communication quality." Therefore, the method disclosed herein can reduce signaling overhead, and can also ensure that when the beam quality changes, it can be reported in time to ensure the communication quality.
[0112] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate the TCI status, including:
[0113] The first information is used to indicate an indicated TCI state or a unified TCI state, where the indicated TCI state or the unified TCI state may be used for transmission of at least two channels and / or at least two reference signals; and / or
[0114] The first information is used to activate the TCI state, including at least one of the following:
[0115] The first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal;
[0116] The first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0117] In combination with some embodiments of the second aspect, in some embodiments, the TCI state includes at least one of a downlink TCI state DL TCI state, a joint TCI state, and an uplink TCI state UL TCI state.
[0118] In combination with some embodiments of the second aspect, in some embodiments, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state.
[0119] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate the indicated TCI state or unified TCI state, including:
[0120] The first information includes MAC CE signaling, the MAC CE signaling activates the TCI state corresponding to the first codepoint, the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0121] In conjunction with some embodiments of the second aspect, in some embodiments, the first information is used to indicate the indicated TCI state or unified TCI state, including:
[0122] The first information includes DCI signaling, and the TCI status indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state; wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI status indication field in the DCI signaling activated by MAC CE signaling.
[0123] In combination with some embodiments of the second aspect, in some embodiments, the first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal, including:
[0124] The first information includes MAC CE signaling, where the MAC CE signaling includes a CORESET ID of a CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate a TCI state corresponding to the CORESET.
[0125] In combination with some embodiments of the second aspect, in some embodiments, the first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, including:
[0126] The first information includes MAC CE signaling, and the MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0127] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:
[0128] Second configuration information is sent, where the second configuration information is used to configure a third reference signal resource, the third reference signal resource is used to determine a second beam, and the beam quality of the second beam is used by the terminal to determine whether the beam meets a trigger event.
[0129] In conjunction with some embodiments of the second aspect, in some embodiments, the triggering event includes at least one of the following:
[0130] The beam quality of the first beam is lower than a first threshold value;
[0131] The beam quality of the second beam is higher than a second threshold value;
[0132] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0133] In conjunction with some embodiments of the second aspect, in some embodiments, the beam quality includes at least one of the following:
[0134] Layer 1 reference signal received strength L1-RSRP;
[0135] Layer 1 signal to interference plus noise ratio L1-SINR;
[0136] Uplink transmit power.
[0137] In conjunction with some embodiments of the second aspect, in some embodiments, the beam report includes at least one of the following:
[0138] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0139] beam quality of a reference signal resource corresponding to the beam report;
[0140] Sounding Reference Signal (SRS) port support capability of the terminal;
[0141] a power headroom of the terminal;
[0142] The maximum allowed radiated MPE power back-off change of the terminal;
[0143] Uplink transmission power of the terminal;
[0144] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0145] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0146] In conjunction with some embodiments of the second aspect, in some embodiments, the indicated TCI state or unified TCI state is used to transmit at least two of the following:
[0147] Physical downlink control channel PDCCH;
[0148] Physical downlink shared channel PDSCH;
[0149] Physical uplink control channel PUCCH;
[0150] Physical uplink shared channel PUSCH;
[0151] Channel State Information Reference Signal CSI-RS;
[0152] Sounding Reference Signal SRS.
[0153] In a third aspect, an embodiment of the present disclosure provides a communication method for a communication system, wherein the communication system includes a terminal and a network device, and the method includes:
[0154] The network device sends first configuration information and / or first information, where the first configuration information is used to configure at least one first reference signal resource; the first information is used to indicate and / or activate a TCI state, where the TCI state is used by a terminal to determine at least one first reference signal resource, wherein the first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0155] The terminal determines at least one first reference signal resource;
[0156] The terminal determines, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0157] When the terminal satisfies at least one triggering event, the terminal sends the beam report.
[0158] In a fourth aspect, an embodiment of the present disclosure provides a terminal, including:
[0159] a processing module, configured to determine at least one first reference signal resource, where the first reference signal resource is used to determine a first beam;
[0160] The processing module is further configured to determine, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report;
[0161] The transceiver module is used to send the beam report when the terminal meets at least one triggering event.
[0162] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining at least one first reference signal resource includes at least one of the following:
[0163] receiving first configuration information, where the first configuration information is used to configure at least one first reference signal resource;
[0164] determining at least one first reference signal resource based on a transmission configuration indication TCI state;
[0165] At least one first reference signal resource is determined based on protocol agreement.
[0166] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining at least one first reference signal resource based on the TCI state includes at least one of the following:
[0167] Determine at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the control resource set CORESET of the terminal;
[0168] determining at least one first reference signal resource based on a reference signal resource corresponding to an indicated TCI state, wherein the indicated TCI state may be used for transmission of at least two channels and / or at least two reference signals;
[0169] At least one first reference signal resource is determined based on the reference signal resource corresponding to the activated TCI state; wherein
[0170] The TCI state includes at least one of a downlink TCI state (DL TCI state), a joint TCI state, and an uplink TCI state (UL TCI state).
[0171] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining at least one first reference signal resource based on the TCI state includes:
[0172] The reference signal resources corresponding to the TCI state include two reference signal resources, and a reference signal resource of type D of the quasi co-location type QCL type among the reference signal resources corresponding to the TCI state is determined as the first reference signal resource.
[0173] In conjunction with some embodiments of the fourth aspect, in some embodiments, determining at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the CORESET of the terminal includes:
[0174] If the number of TCI states corresponding to the multiple CORESETs of the terminal exceeds the first value, select some CORESETs from the multiple CORESETs according to a priority rule;
[0175] The reference signal resource corresponding to the TCI state corresponding to the part of CORESETs is determined as the first reference signal resource.
[0176] In conjunction with some embodiments of the fourth aspect, in some embodiments, the priority rule includes at least one of the following:
[0177] Prioritize CORESET with short search space set SS set period;
[0178] Prioritize the CORESET with a larger CORESET ID.
[0179] In combination with some embodiments of the fourth aspect, in some embodiments, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state, and the unified TCI state can be used for transmission of at least two channels and / or at least two reference signals.
[0180] In combination with some embodiments of the fourth aspect, in some embodiments, the indicated TCI state or the unified TCI state is indicated by media access control layer control unit MAC CE signaling, or the indicated TCI state or unified TCI state is indicated by downlink control information DCI signaling and MAC CE signaling.
[0181] In combination with some embodiments of the fourth aspect, in some embodiments, the MAC CE signaling indicates the indicated TCI state or the unified TCI state, including:
[0182] The MAC CE signaling activates a TCI state corresponding to a first codepoint, where the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of multiple codepoints corresponding to a TCI state indication field in the DCI signaling; and / or
[0183] The MAC CE signaling and the DCI signaling indicating the indicated TCI state or the unified TCI state include:
[0184] The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, and the TCI state indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state.
[0185] In combination with some embodiments of the fourth aspect, in some embodiments, the activated TCI state is indicated by MAC CE signaling.
[0186] In conjunction with some embodiments of the fourth aspect, in some embodiments, the MAC CE signaling indicates an activated TCI state, including at least one of the following:
[0187] The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling;
[0188] When the TCI state corresponding to the CORESET is not a unified TCI state, the TCI state corresponding to the CORESET is indicated by MAC CE signaling, where the MAC CE signaling includes a CORESET ID of the CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate the TCI state corresponding to the CORESET.
[0189] In conjunction with some embodiments of the fourth aspect, in some embodiments, the triggering event includes at least one of the following:
[0190] The beam quality of the first beam is lower than a first threshold value;
[0191] The beam quality of the second beam is higher than a second threshold value;
[0192] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0193] In conjunction with some embodiments of the fourth aspect, in some embodiments, the beam quality includes at least one of the following:
[0194] Layer 1 reference signal received strength L1-RSRP;
[0195] Layer 1 signal to interference plus noise ratio L1-SINR;
[0196] Uplink transmit power.
[0197] In conjunction with some embodiments of the fourth aspect, in some embodiments, the terminal is further configured to:
[0198] Second configuration information is received, where the second configuration information is used to configure a third reference signal resource, and the third reference signal resource is used to determine the second beam.
[0199] In conjunction with some embodiments of the fourth aspect, in some embodiments, the beam report includes at least one of the following:
[0200] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0201] beam quality of a reference signal resource corresponding to the beam report;
[0202] Sounding Reference Signal (SRS) port support capability of the terminal;
[0203] a power headroom of the terminal;
[0204] The maximum allowed radiated MPE power back-off change of the terminal;
[0205] Uplink transmission power of the terminal;
[0206] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0207] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0208] In conjunction with some embodiments of the fourth aspect, in some embodiments, the indicated TCI state or unified TCI state is used to transmit at least two of the following:
[0209] Physical downlink control channel PDCCH;
[0210] Physical downlink shared channel PDSCH;
[0211] Physical uplink control channel PUCCH;
[0212] Physical uplink shared channel PUSCH;
[0213] Channel State Information Reference Signal CSI-RS;
[0214] Sounding Reference Signal SRS.
[0215] In a fifth aspect, an embodiment of the present disclosure provides a network device, including:
[0216] a transceiver module, configured to send first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or
[0217] The transceiver module is configured to send first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource.
[0218] The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
[0219] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used to indicate the TCI status, including:
[0220] The first information is used to indicate an indicated TCI state or a unified TCI state, where the indicated TCI state or the unified TCI state may be used for transmission of at least two channels and / or at least two reference signals; and / or
[0221] The first information is used to activate the TCI state, including at least one of the following:
[0222] The first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal;
[0223] The first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0224] In combination with some embodiments of the fifth aspect, in some embodiments, the TCI state includes at least one of a downlink TCI state DL TCI state, a joint TCI state, and an uplink TCI state UL TCI state.
[0225] In combination with some embodiments of the fifth aspect, in some embodiments, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state.
[0226] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used to indicate the indicated TCI state or unified TCI state, including:
[0227] The first information includes MAC CE signaling, the MAC CE signaling activates the TCI state corresponding to the first codepoint, the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0228] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used to indicate the indicated TCI state or unified TCI state, including:
[0229] The first information includes DCI signaling, and the TCI status indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state; wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI status indication field in the DCI signaling activated by MAC CE signaling.
[0230] In conjunction with some embodiments of the fifth aspect, in some embodiments, the first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal, including:
[0231] The first information includes MAC CE signaling, where the MAC CE signaling includes a CORESET ID of a CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate a TCI state corresponding to the CORESET.
[0232] In combination with some embodiments of the fifth aspect, in some embodiments, the first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, including:
[0233] The first information includes MAC CE signaling, and the MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0234] In conjunction with some embodiments of the fifth aspect, in some embodiments, the network device is further configured to:
[0235] Second configuration information is sent, where the second configuration information is used to configure a third reference signal resource, the third reference signal resource is used to determine a second beam, and the beam quality of the second beam is used by the terminal to determine whether the beam meets a trigger event.
[0236] With reference to some embodiments of the fifth aspect, in some embodiments, the triggering event includes at least one of the following:
[0237] The beam quality of the first beam is lower than a first threshold value;
[0238] The beam quality of the second beam is higher than a second threshold value;
[0239] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0240] In conjunction with some embodiments of the fifth aspect, in some embodiments, the beam quality includes at least one of the following:
[0241] Layer 1 reference signal received strength L1-RSRP;
[0242] Layer 1 signal to interference plus noise ratio L1-SINR;
[0243] Uplink transmit power.
[0244] In conjunction with some embodiments of the fifth aspect, in some embodiments, the beam report includes at least one of the following:
[0245] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0246] beam quality of a reference signal resource corresponding to the beam report;
[0247] Sounding Reference Signal (SRS) port support capability of the terminal;
[0248] a power headroom of the terminal;
[0249] The maximum allowed radiated MPE power back-off change of the terminal;
[0250] Uplink transmission power of the terminal;
[0251] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0252] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0253] In conjunction with some embodiments of the fifth aspect, in some embodiments, the indicated TCI state or unified TCI state is used to transmit at least two of the following:
[0254] Physical downlink control channel PDCCH;
[0255] Physical downlink shared channel PDSCH;
[0256] Physical uplink control channel PUCCH;
[0257] Physical uplink shared channel PUSCH;
[0258] Channel State Information Reference Signal CSI-RS;
[0259] Sounding Reference Signal SRS.
[0260] In a sixth aspect, an embodiment of the present disclosure proposes a communication device, which includes: one or more processors; one or more memories for storing instructions; wherein the processor is used to call the instructions so that the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
[0261] In the seventh aspect, an embodiment of the present disclosure proposes a communication system, which includes: a terminal and a network device; wherein the terminal is configured to execute the method described in the first aspect and the optional implementation of the first aspect, and the network device is configured to execute the method described in the second aspect and the optional implementation of the second aspect.
[0262] In an eighth aspect, an embodiment of the present disclosure proposes a storage medium, which stores instructions. When the instructions are executed on a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
[0263] In the ninth aspect, an embodiment of the present disclosure proposes a program product. When the program product is executed by a communication device, the communication device executes the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
[0264] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the communication method described in the first aspect, the optional implementation of the first aspect, the second aspect, and the optional implementation of the second aspect.
[0265] It is understandable that the above-mentioned terminals, network devices, communication devices, communication systems, storage media, program products, and computer programs are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects of the corresponding methods and will not be repeated here.
[0266] The present disclosure provides invention titles. In some embodiments, the terms "communication method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.
[0267] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
[0268] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.
[0269] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.
[0270] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.
[0271] In the embodiments of the present disclosure, “plurality” refers to two or more.
[0272] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be used interchangeably.
[0273] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.
[0274] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.
[0275] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.
[0276] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0277] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.
[0278] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.
[0279] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.
[0280] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
[0281] In some embodiments, the terms "access network device (AN device)", "radio access network device (RAN device)", "base station (BS)", "radio base station" "fixed station", "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission / reception point (TRP)", "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "carrier", "component carrier", "bandwidth part (BWP)" and the like may be used interchangeably.
[0282] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc. can be used interchangeably.
[0283] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.
[0284] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.
[0285] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
[0286] In some embodiments, data, information, etc. may be obtained with the user's consent.
[0287] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
[0288] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values or representations of the parameters may also adopt other values or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.
[0289] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
[0290] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal and a network device. Optionally, the network device may include at least one of an access network device and a core network device.
[0291] In some embodiments, the terminal includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.
[0292] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open base station (Open RAN), a cloud base station (Cloud RAN), a base station in other communication systems, and at least one of an access node in a wireless fidelity (WiFi) system, but is not limited thereto.
[0293] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.
[0294] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.
[0295] In some embodiments, the core network device may be a device including one or more network elements, or may be multiple devices or a group of devices, each including all or part of one or more network elements. The network element may be virtual or physical. The core network, for example, includes at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC). Alternatively, the core network device may also be a location management function network element. Exemplarily, the location management function network element includes a location server (location server), which may be implemented as any one of the following: Location Management Function (LMF), Enhanced Serving Mobile Location Centre (E-SMLC), Secure User Plane Location (SUPL), and Secure User Plane Location Platform (SUPLLP).
[0296] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
[0297] The following embodiments of the present disclosure may be applied to the communication system 100 shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.
[0298] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).
[0299] Optionally, in a communication system, when a terminal reports a beam report to a network device, the network device typically first configures the reporting timing for the beam report for the terminal, and the terminal then reports the beam report based on the reporting timing configured by the network device. Optionally, the network device typically configures the terminal to report beam reports periodically, semi-persistently, or aperiodically. However, in reality, changes in beam quality are most readily known to the terminal, and the reporting timing configured by the network device (such as the periodic reporting period or the aperiodic reporting period) may not be optimal. For example, if the reporting interval is too short, the optimal beam reported twice may be the same, without change, resulting in wasted signaling. If the reporting interval is too long, a situation may occur where "beam quality changes but the reporting timing has not yet arrived," thereby affecting communication quality. Currently, event-triggered beam reporting has been proposed to address this issue. Specifically, the terminal determines whether the beam meets a triggering event based on its own beam quality. When the triggering event is met, the terminal triggers the reporting of the beam report, thereby achieving timely and accurate reporting of beam reports.
[0300] Optionally, in some embodiments, the triggering event may include at least one of the following:
[0301] The beam quality of the current beam is lower than a first threshold;
[0302] The beam quality of the candidate beam is higher than a second threshold;
[0303] The beam quality of the candidate beam is higher than the beam quality of the current beam by a preset offset value.
[0304] However, how to define the "current beam" is a technical problem that needs to be solved urgently.
[0305] FIG2A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG2A , the embodiment of the present disclosure relates to a communication method for use in a communication system 100, the method comprising:
[0306] Step 2101: The network device sends first configuration information.
[0307] Optionally, the network device may send the first configuration information to the terminal, and the terminal may receive the first configuration information sent by the network device.
[0308] Optionally, in some embodiments, the first configuration information may be used to configure at least one first reference signal resource. The first reference signal resource may be used to determine a first beam. For example, the first beam may be a beam corresponding to the first reference signal resource. Optionally, the "beam corresponding to the first reference signal resource" herein may be understood as a beam used to transmit the first reference signal resource.
[0309] Optionally, in some embodiments, the beam quality of the above-mentioned first beam can be used by the terminal to determine whether the beam meets the triggering event. Optionally, the triggering event can be used to trigger the terminal to send a beam report. For example, when the beam quality of the first beam meets the triggering event or meets the triggering condition of the triggering event (such as the entering condition or the leaving condition), the terminal can send a beam report.
[0310] Optionally, the above mentioned concepts of "triggering the terminal to send a beam report" and "terminal sending a beam report" are different. Specifically, "triggering the terminal to send a beam report" means: the terminal determines that it is going to send a beam report, but the beam report has not been generated at this time, or the beam report has been generated but has not been sent, that is, the terminal only knows that it is going to send a beam report, but has not yet performed the action of "sending a beam report", but is about to perform the action of "sending a beam report". To execute the sending of a beam report, a specific triggering condition for sending a beam report needs to be met, that is, when the specific triggering condition for sending a beam report is met, the beam report can be sent, that is, "the terminal sending a beam report" means: the terminal is performing the action of "sending a beam report".
[0311] Optionally, in some embodiments, the triggering event may include one or more of the following:
[0312] A first event, wherein the first event is: a beam quality of the first beam is lower than a first threshold value;
[0313] The second event is: the beam quality of the second beam is higher than the second threshold value;
[0314] The third event is: the beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0315] Optionally, in some embodiments, the entry condition corresponding to the first event may include: the beam quality of the first beam plus the first value is less than a third threshold value;
[0316] Optionally, in some embodiments, the exit condition corresponding to the first event may include: the beam quality of the first beam minus the second value is greater than a fourth threshold value.
[0317] Optionally, in some embodiments, the entry condition corresponding to the second event may include: the beam quality of the second beam minus the third value is greater than a fifth threshold value;
[0318] Optionally, in some embodiments, the exit condition corresponding to the second event may include: the beam quality of the second beam plus the fourth value is less than a sixth threshold value.
[0319] Optionally, in some embodiments, the entry condition corresponding to the third event may include: a value obtained by subtracting the fifth value from the beam quality of the second beam is greater than a value obtained by adding the first offset value to the beam quality of the first beam;
[0320] Optionally, in some embodiments, the exit condition corresponding to the third event may include: a value obtained by adding the sixth value to the beam quality of the second beam is less than a value obtained by adding the second offset value to the beam quality of the first beam.
[0321] Optionally, the first value, second value, third value, fourth value, fifth value, sixth value, first threshold value, second threshold value, third threshold value, fourth threshold value, fifth threshold value, sixth threshold value, first offset value, second offset value, and preset offset value may be configured by the network device, or may be agreed upon by a protocol. Furthermore, the first value, second value, third value, fourth value, fifth value, and sixth value may be the same or different, the first threshold value, second threshold value, third threshold value, fourth threshold value, fifth threshold value, and sixth threshold value may be the same or different, and the first offset value, second offset value, and preset offset value may be the same or different.
[0322] Optionally, the first beam herein may also be referred to as the current beam, serving beam, serving beam, first beam set, etc., which is not specifically limited in this disclosure. Furthermore, the second beam herein may also be referred to as the candidate beam, new beam, target beam, etc., which is not specifically limited in this disclosure.
[0323] Optionally, the first threshold value, the second threshold value, and the preset offset value may be configured by the network device, or may be agreed upon by a protocol. Furthermore, the first threshold value, the second threshold value, and the preset offset value may be the same or different.
[0324] Optionally, the beam report may include at least one of the following:
[0325] At least one first identifier, where the first identifier may be used to indicate a reference signal resource corresponding to the beam report;
[0326] The beam quality of the reference signal resource corresponding to the beam report;
[0327] The terminal's sounding reference signal (SRS) port support capability; for example, the maximum number of SRS ports supported by the terminal.
[0328] Power headroom of the terminal;
[0329] The power backoff value corresponding to the terminal's maximum permissible exposure (MPE) power;
[0330] Uplink transmission power (UL transmission power) of the terminal; optionally, the uplink transmission power may be: the difference between power headroom and power backoff;
[0331] A second identifier, where the second identifier is used to indicate a triggering event for triggering a beam report;
[0332] The third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier; optionally, the third identifier may implicitly indicate the above-mentioned second identifier.
[0333] Optionally, the "reference signal resources corresponding to the beam report" indicated by the above-mentioned first identifier can be understood as: the reference signal resources corresponding to the beam reported in the beam report, that is, the reference signal resources transmitted on the beam reported in the beam report; optionally, the beam reported in the beam report can be a beam that meets the above-mentioned trigger event or trigger condition.
[0334] For example, in some embodiments, the above-mentioned first identifier can be a synchronization signal block (Synchronization Signal Block, SSB) index, and the SSB index can be used to indicate the SSB identifier; or, the first identifier can be a CSI-RS resource ID, and the CSI-RS resource ID can be used to indicate the CSI-RS resource.
[0335] Optionally, the above-mentioned "beam quality of the reference signal resource corresponding to the beam report" may be: the beam quality of the beam reported in the beam report, and the beam quality may, for example, include at least one of the following: layer 1 reference signal received strength (Layer 1 Reference Signal Received Power, L1-RSRP), layer 1 signal to interference plus noise ratio (Layer 1 Signal to Interference plus Noise Ratio, L1-SINR), and uplink transmit power. It should be noted that in some embodiments, when the beam reported in the beam report is used for the joint transmission configuration indication state (joint Transmission Configuration Indicator state, joint TCI state) or the uplink transmission configuration indication state (Up Link Transmission Configuration Indicator state, UL TCI state), the beam quality includes the uplink transmit power.
[0336] Furthermore, in some embodiments, the above-mentioned "beam" is only an exemplary name of the present disclosure, and it may also be other names. For example, the beam may be called: beam, spatial Rx parameter, quasi-co location Type (QCL Type) Type D, spatial setting, spatial reception filter, spatial transmission filter, spatial domain filter, transmission configuration indication state (TCI state), joint Transmission Configuration Indicator state (joint TCI state), Down Link Transmission Configuration Indicator state (DL TCI state), Up Link Transmission Configuration Indicator state (UL TCI state), Unified Transmission Configuration Indicator state (unified TCI state), Common Transmission Configuration Indicator state (common TCI state), spatial relationship information (spatialrelationinfo), etc.
[0337] Step 2102: The network device sends first information.
[0338] Optionally, the network device may send the first information to the terminal, and the terminal may receive the first information sent by the network device.
[0339] Optionally, the first information may be used to indicate and / or activate a Transmission Control Interface (TCI) state, which may be used by the terminal to determine at least one first reference signal resource, which may be used to determine the first beam. For a detailed description of this section, refer to the above step description.
[0340] Optionally, the first information may include medium access control layer control element (MAC CE) signaling and / or downlink control information (DCI) signaling, and the method of “first information indication and / or activation of TCI state” may include any one of the following:
[0341] Method 1: MAC CE signaling activates the TCI state corresponding to the first codepoint.
[0342] Optionally, the TCI status indication field in the DCI signaling may correspond to multiple codepoints (for example, 8 codepoints), and each of the multiple codepoints corresponds to one or more TCI states, and the first codepoint activated by the MAC CE signaling may be any one of the multiple codepoints corresponding to the TCI status indication field in the DCI signaling.
[0343] Optionally, in some embodiments, the TCI state corresponding to the first codepoint activated by the MAC CE signaling may be: an indicated TCI state or a unified TCI state.
[0344] Optionally, the indicated TCI state or unified TCI state may include at least one of: DL TCI state, joint TCI state and UL TCI state.
[0345] Optionally, the indicated TCI state or unified TCI state may be used for transmission of at least two channels and / or at least two reference signals. For example, the indicated TCI state or unified TCI state may be used for transmission of at least two of the following:
[0346] Physical Downlink Control Channel (PDCCH);
[0347] Physical Downlink Shared Channel (PDSCH);
[0348] Physical Uplink Control Channel (PUCCH);
[0349] Physical Uplink Shared Channel (PUSCH);
[0350] Channel-state information reference signal (CSI-RS);
[0351] Sounding reference signal (SRS).
[0352] Optionally, the joint TCI state may be used for transmission of at least one of PDSCH, PUSCH, PUCCH, CSI-RS, SRS, and PDCCH.
[0353] Optionally, the above-mentioned DL TCI state may be used for transmission of at least one of PDSCH, CSI-RS, and PDCCH.
[0354] Optionally, the UL TCI state may be used for transmission of at least one of PUSCH, PUCCH, and SRS.
[0355] Method 2: MAC CE signaling activates the TCI state corresponding to each of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling. The TCI state indication field in the DCI signaling indicates the first codepoint, so as to indicate to the terminal that the TCI state corresponding to the first codepoint indicated by the DCI signaling is the indicated TCI state or the unified TCI state.
[0356] Optionally, the first codepoint indicated by the DCI signaling here may be any one of multiple codepoints corresponding to the TCI status indication field in the DCI signaling.
[0357] Also, for a detailed introduction to the "indicated TCI state or unified TCI state" here, please refer to the above description.
[0358] Method 3: The MAC CE signaling includes the CORESET ID of the terminal's control resource set (CORESET) and the TCI state ID corresponding to the CORESET, where the TCI state ID can be used to indicate the TCI state corresponding to the CORESET.
[0359] Optionally, the TCI state corresponding to the CORESET of the terminal may be a unified TCI state, or the TCI state corresponding to the CORESET of the terminal may not be a unified TCI state. When the TCI state corresponding to the CORESET of the terminal is a unified TCI state, the TCI state corresponding to the CORESET of the terminal may be indicated by the above-mentioned method one and method two; or, if the CORESET is only associated with a common search space (CSS) type 3 or a UE-specific search space (SS), it indicates that the TCI state corresponding to the CORESET is a unified TCI state. And, when the TCI state corresponding to the CORESET of the terminal is not a unified TCI state, the TCI state corresponding to the CORESET of the terminal may be indicated by the above-mentioned method three.
[0360] Optionally, the "MAC CE signaling activates the TCI state corresponding to the first codepoint" in the above-mentioned method 1, and the "TCI state indication field in the DCI signaling indicates the TCI state corresponding to the first codepoint" in the above-mentioned method 2 can be understood as: the TCI state or unified TCI state indicated by the first information indication. The "MAC CE signaling activates the TCI state corresponding to each of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling" in the above-mentioned method 2, and the method 3 can be understood as: the TCI state is activated by the first information.
[0361] Optionally, either step 2101 or step 2102 may be performed, or both step 2101 and step 2102 may be performed. When both step 2101 and step 2102 are performed, step 2101 and step 2102 may be performed simultaneously or at different times.
[0362] Step 2103: The network device sends second configuration information.
[0363] Optionally, the network device may send the second configuration information to the terminal, and the terminal may receive the second configuration information sent by the network device.
[0364] Optionally, the second configuration information can be used to configure a third reference signal resource, which can be used to determine the second beam. For example, the second beam can be the beam corresponding to the third reference signal resource. Optionally, the "beam corresponding to the third reference signal resource" here can be understood as the beam used to transmit the third reference signal resource. Furthermore, the beam quality of the second beam can be used by the terminal to determine whether the beam meets the triggering event. For more information about the triggering event, please refer to the above step description.
[0365] Optionally, in some embodiments, the second beam may include at least one of the following:
[0366] Non-optimal beams from the last beam report;
[0367] beams other than those in the last beam report;
[0368] beams other than the beam most recently indicated by the network device;
[0369] Beams other than the first beam.
[0370] Optionally, the beam most recently indicated by the network device may include at least one of the following:
[0371] The transmission configuration indication (TCI) state corresponding to the channel most recently indicated by the network device:
[0372] The TCI status corresponding to the reference signal last indicated by the network device;
[0373] The TCI status corresponding to the PDCCH last indicated by the network device;
[0374] The TCI status corresponding to the PDSCH last indicated by the network device;
[0375] The TCI status corresponding to the PUCCH last indicated by the network device;
[0376] The TCI status corresponding to the PUSCH last indicated by the network device;
[0377] The TCI state corresponding to the CSI-RS most recently indicated by the network device;
[0378] The TCI status corresponding to the SRS most recently indicated by the network device.
[0379] Optionally, in some embodiments, the beam most recently indicated by the network device may be the TCI state indicated by the MAC CE signaling, for example, the TCI state corresponding to a codepoint activated by the MAC CE, that is, the beam most recently indicated by the network device is the TCI state corresponding to a codepoint activated by the MAC CE; or, in other embodiments, the beam most recently indicated by the network device may be: after the TCI states corresponding to multiple codepoints are activated by the MAC CE signaling, one of the codepoints indicated by the DCI signaling, that is, the beam most recently indicated by the network device may be the TCI state corresponding to the codepoint indicated by the DCI signaling.
[0380] Optionally, in some embodiments, the beam most recently indicated by the network device may be the TCI state activated by the MAC CE, for example, the MAC CE activates the TCI state corresponding to each of the multiple codepoints, that is, the beam most recently indicated by the network device is the TCI state corresponding to each of the multiple codepoints activated by the MAC CE.
[0381] Optionally, in some embodiments, the beam most recently indicated by the network device may be an indicated TCI state (indicated TCI state) or a unified TCI state applicable to at least two channels and / or at least two reference signals; or, in other embodiments, the beam most recently indicated by the network device may be a TCI state independently indicated for one channel and / or one reference signal. The TCI state may include at least one of a joint TCI state, a DL TCI state, and a UL TCI state.
[0382] Step 2104: The network device configures at least one trigger event.
[0383] Optionally, the network device may configure the trigger event for the terminal, and the terminal may receive the trigger event configured by the network device.
[0384] In some embodiments, the trigger event may be used to trigger the terminal to send a beam report, wherein when the terminal meets the trigger event, the terminal may send a beam report. For a detailed description of the trigger event, please refer to the above embodiment description.
[0385] Step 2105: The terminal determines at least one triggering event.
[0386] For a detailed introduction to the triggering events, please refer to the above step description.
[0387] Optionally, in some embodiments, the terminal may determine at least one triggering event based on a protocol agreement; in other embodiments, the terminal may receive at least one triggering event configured by a network device.
[0388] Step 2106: The terminal determines at least one first reference signal resource.
[0389] Optionally, in some embodiments, the terminal may determine at least one first reference signal resource by receiving first configuration information sent by the network device.
[0390] Optionally, in some other embodiments, the terminal may determine at least one first reference signal resource based on a protocol agreement.
[0391] Optionally, in some further embodiments, the terminal may determine at least one first reference signal resource based on the TCI state. Specifically, in some embodiments, the terminal may determine at least one first reference signal resource based on the aforementioned first information indication and / or the activated TCI state. For example, the terminal may determine one or more reference signal resources corresponding to the TCI state as the first reference signal resource. Alternatively, when the reference signal resources corresponding to the TCI state include two reference signal resources, the terminal may determine the second reference signal resource among the reference signal resources corresponding to the TCI state as the first reference signal resource. Optionally, the quasi-co location type (QCL Type) corresponding to the second reference signal resource is type D.
[0392] The following is a detailed introduction to the method of "the terminal determining at least one first reference signal resource based on the TCI state". Optionally, the terminal can use the following methods to determine at least one first reference signal resource based on the TCI state.
[0393] The first method is to determine at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the CORESET of the terminal.
[0394] Optionally, in some embodiments, the terminal may directly determine one or more reference signal resources corresponding to the TCI state corresponding to the CORESET of the terminal as the first reference signal resource. Alternatively, when the reference signal resources corresponding to the TCI state corresponding to the CORESET of the terminal include two reference signal resources, the terminal may determine the second reference signal resource among the reference signal resources corresponding to the TCI state corresponding to the CORESET as the first reference signal resource. Optionally, the QCL Type corresponding to the second reference signal resource is type D.
[0395] Optionally, in some other embodiments, if the number of TCI states corresponding to multiple CORESETs of the terminal exceeds a first value M, the terminal may select some CORESETs from the multiple CORESETs according to a priority rule (for example, select M CORESETs), and determine the first reference signal resource based on the reference signal resources corresponding to the TCI states corresponding to the selected part of the CORESETs. For example, the first reference signal resource may be determined based on the reference signal resources corresponding to the TCI states corresponding to each selected CORESET, or, when the reference signal resources corresponding to the TCI states corresponding to the selected CORESET include two reference signal resources, the second reference signal resource among the reference signal resources corresponding to the TCI states corresponding to the CORESET is determined as the first reference signal resource. Optionally, the QCL Type corresponding to the second reference signal resource is type D.
[0396] Optionally, the above-mentioned “priority rule” may include, for example, at least one of the following:
[0397] Prioritize CORESETs with short search space sets (SS sets);
[0398] Prioritize the CORESET with a larger CORESET ID.
[0399] For example, the terminal may preferentially select a CORESET associated with a shorter SS set period. When the SS set periods associated with different CORESETs are the same, the terminal may preferentially select a CORESET with a larger CORESET ID from the different CORESETs.
[0400] The second method is to determine at least one first reference signal resource based on the reference signal resource corresponding to the indicated TCI state.
[0401] Optionally, the “indicated TCI status” herein may include, for example, at least one of the following:
[0402] The TCI status corresponding to the first codepoint activated by MAC CE signaling in the above method 1;
[0403] In the aforementioned method 2, the TCI status corresponding to the first codepoint indicated by the TCI status indication field in the DCI signaling.
[0404] Also, for further detailed introduction to the "indicated TCI status" here, please refer to the above step description.
[0405] Optionally, in some embodiments, the terminal may directly determine one or more reference signal resources corresponding to the indicated TCI state as the first reference signal resource; or, when the reference signal resources corresponding to the indicated TCI state include two reference signal resources, the terminal may determine the second reference signal resource among the reference signal resources corresponding to the indicated TCI state as the first reference signal resource.
[0406] The third method: determining at least one first reference signal resource based on the reference signal resource corresponding to the activated TCI state.
[0407] Optionally, the “activated TCI state” herein may include, for example, at least one of the following:
[0408] The TCI status corresponding to each codepoint in the multiple codepoints corresponding to the TCI status indication field in the DCI signaling activated by MAC CE signaling in the aforementioned method 2;
[0409] The “TCI state indicated by the TCI state ID included in the MAC CE signaling” in the aforementioned method three.
[0410] For further details on the "indicated TCI state" herein, please refer to the above step description. Optionally, the activated TCI state may include, for example, at least one of the following: an activated joint TCI state, an activated DL TCI state, and an activated UL TCI state.
[0411] Optionally, the activated TCI state here may include the TCI state indicated in the above-mentioned second method, and when the TCI state corresponding to the CORESET of the terminal is the unified TCI state, the activated TCI state here may also include the TCI state corresponding to the CORESET of the terminal.
[0412] Optionally, in some embodiments, when a terminal determines at least one first reference signal resource based on the reference signal resources corresponding to the activated TCI state, one or more reference signal resources corresponding to at least some of the activated TCI states among all activated TCI states may be determined as the first reference signal resource. For example, the terminal may directly determine the one or more reference signal resources corresponding to at least some of the activated TCI states as the first reference signal resource. Alternatively, when the reference signal resources corresponding to the activated TCI state include two reference signal resources, the terminal may determine the second reference signal resource among the reference signal resources corresponding to the activated TCI state as the first reference signal resource. Optionally, the QCL Type corresponding to the second reference signal resource is type D.
[0413] Optionally, in some embodiments, the reason for determining at least one first reference signal resource based on the reference signal resource corresponding to the activated TCI state is that the network device may indicate the activated TCI state to the terminal for use through DCI signaling at any time. Therefore, the beam quality of the beam corresponding to the activated TCI state also needs attention. Therefore, the reference signal resource corresponding to the activated TCI state is determined as the first reference signal resource here, so that the terminal can determine the beam corresponding to the activated TCI state as the first beam, thereby adding the "beam quality of the beam corresponding to the activated TCI state" to the method for judging "whether the beam meets the trigger event", and when the beam meets the trigger event, the beam report reported by the terminal can include the beam quality of the beam corresponding to the activated TCI state, then the network device can schedule the terminal to use the activated TCI state with better beam quality based on the beam quality of the beam corresponding to the activated TCI state, thereby ensuring the communication quality.
[0414] Step 2107: The terminal determines at least one third reference signal resource.
[0415] Optionally, in some embodiments, the terminal may determine at least one third reference signal resource by receiving second configuration information sent by the network device. Alternatively, in other embodiments, the terminal may determine at least one third reference signal resource based on a protocol agreement. For a detailed description of this aspect, please refer to the above embodiment.
[0416] Step 2108: The terminal determines a first beam based on the first reference signal resource, and / or determines a second beam based on the third reference signal resource.
[0417] Optionally, the terminal may determine the beam for transmitting the first reference signal resource as the first beam, and determine the beam for transmitting the third reference signal resource as the second beam.
[0418] Step 2109: The terminal determines whether the beam meets the triggering event based on the beam quality of the first beam and / or the beam quality of the second beam.
[0419] Optionally, when the trigger event includes at least one of the beam quality of the first beam being lower than the first threshold value, the beam quality of the second beam being higher than the second threshold value, and the beam quality of the second beam being higher than the beam quality of the first beam by a preset offset value, if the terminal measures that the beam quality of the first beam is lower than the first threshold value, or the beam quality of the second beam is higher than the second threshold value, or the beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value, the terminal determines that the beam meets the trigger event; otherwise, the terminal determines that the beam does not meet the trigger event.
[0420] Step 2110: When the terminal meets at least one triggering event, the terminal sends a beam report.
[0421] Optionally, the terminal may send a beam report to the network device, and the network device may receive the beam report. For a detailed introduction to the beam report, please refer to the above step description.
[0422] In the above embodiment, the terminal determines at least one first reference signal resource in order to determine at least one first beam based on the at least one first reference signal resource. Subsequently, the terminal determines whether the beam satisfies a trigger event based on the beam quality of the first beam, and sends a beam report when the trigger event is satisfied. It can be seen that the disclosed embodiment proposes a method for a terminal to determine the first beam corresponding to a trigger event, so that the terminal successfully determines the first beam, and then facilitates the terminal to subsequently determine whether the beam satisfies a trigger event based on the beam quality of the first beam, and send a beam report when the trigger event is satisfied, thereby ensuring the successful transmission of the beam report. Moreover, in the method disclosed herein, the terminal sends the beam report based on a trigger event. By flexibly setting the trigger event, the terminal can report the beam report promptly and accurately at the appropriate time, thereby avoiding the situation where "the beam report interval configured by the network device is too short, which may make the best beams reported twice the same without change, thereby wasting signaling; and the beam report interval configured by the network device is too long, which may cause the beam quality to change but the beam report is not sent due to the reporting time not being reached, thereby affecting the communication quality." Therefore, the method disclosed herein can reduce signaling overhead, and can also ensure that when the beam quality changes, it can be reported in time to ensure the communication quality.
[0423] The communication method involved in the embodiments of the present disclosure may include at least one of steps 2101 to 2110. For example, step 2101 may be implemented as an independent embodiment, step 2102 may be implemented as an independent embodiment, step 2103 may be implemented as an independent embodiment, and steps 2101+2102 may be implemented as independent embodiments, but are not limited thereto.
[0424] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0425] FIG3A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3A , the embodiment of the present disclosure relates to a communication method for a terminal, the method comprising:
[0426] Step 3101: Receive first configuration information.
[0427] Step 3102: Receive first information.
[0428] Step 3103: Receive second configuration information.
[0429] Step 3104: Receive at least one trigger event.
[0430] Step 3105: Determine at least one triggering event.
[0431] Step 3106: Determine at least one first reference signal resource.
[0432] Step 3107: Determine at least one third reference signal resource.
[0433] Step 3108: Determine a first beam based on the first reference signal resource, and / or determine a second beam based on the third reference signal resource.
[0434] Step 3109: Determine whether the beam meets the trigger event based on the beam quality of the first beam and / or the beam quality of the second beam.
[0435] Step 3110: When the terminal meets at least one triggering event, a beam report is sent.
[0436] For a detailed description of steps 3101-3110, please refer to the above embodiment description.
[0437] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3101 to 3110. For example, step 3101 may be implemented as an independent embodiment, step 3102 may be implemented as an independent embodiment, step 3103 may be implemented as an independent embodiment, and steps 3101+3102 may be implemented as independent embodiments, but are not limited thereto.
[0438] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0439] FIG3B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG3B , the embodiment of the present disclosure relates to a communication method for a terminal, the method comprising:
[0440] Step 3201: Determine at least one first reference signal resource.
[0441] Step 3202: Determine whether the beam meets a trigger event based on the beam quality of the first beam.
[0442] Step 3203: When the terminal meets at least one triggering event, a beam report is sent.
[0443] Optionally, the first reference signal resource is used to determine a first beam.
[0444] Optionally, the trigger event is used to trigger the terminal to send a beam report.
[0445] Optionally, the determining of at least one first reference signal resource includes at least one of the following:
[0446] receiving first configuration information, where the first configuration information is used to configure at least one first reference signal resource;
[0447] determining at least one first reference signal resource based on a transmission configuration indication TCI state;
[0448] At least one first reference signal resource is determined based on protocol agreement.
[0449] Optionally, determining at least one first reference signal resource based on the TCI state includes at least one of the following:
[0450] Determine at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the control resource set CORESET of the terminal;
[0451] determining at least one first reference signal resource based on a reference signal resource corresponding to an indicated TCI state, wherein the indicated TCI state may be used for transmission of at least two channels and / or at least two reference signals;
[0452] At least one first reference signal resource is determined based on the reference signal resource corresponding to the activated TCI state; wherein
[0453] The TCI state includes at least one of a downlink TCI state (DL TCI state), a joint TCI state, and an uplink TCI state (UL TCI state).
[0454] Optionally, the determining at least one first reference signal resource based on the TCI state includes:
[0455] The reference signal resources corresponding to the TCI state include two reference signal resources, and a reference signal resource of type D of the quasi co-location type QCL type among the reference signal resources corresponding to the TCI state is determined as the first reference signal resource.
[0456] Optionally, the determining at least one first reference signal resource based on a reference signal resource corresponding to a TCI state corresponding to a CORESET of the terminal includes:
[0457] If the number of TCI states corresponding to the multiple CORESETs of the terminal exceeds the first value, select some CORESETs from the multiple CORESETs according to a priority rule;
[0458] The reference signal resource corresponding to the TCI state corresponding to the part of CORESETs is determined as the first reference signal resource.
[0459] Optionally, the priority rule includes at least one of the following:
[0460] Prioritize CORESET with short search space set SS set period;
[0461] Prioritize the CORESET with a larger CORESET ID.
[0462] Optionally, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state, and the unified TCI state can be used for transmission of at least two channels and / or at least two reference signals.
[0463] Optionally, the indicated TCI state or the unified TCI state is indicated by media access control layer control unit MAC CE signaling, or the indicated TCI state or unified TCI state is indicated by downlink control information DCI signaling and MAC CE signaling.
[0464] Optionally, the MAC CE signaling indicating the indicated TCI state or the unified TCI state includes:
[0465] The MAC CE signaling activates a TCI state corresponding to a first codepoint, where the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of multiple codepoints corresponding to a TCI state indication field in the DCI signaling; and / or
[0466] The MAC CE signaling and the DCI signaling indicating the indicated TCI state or the unified TCI state include:
[0467] The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, and the TCI state indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state.
[0468] Optionally, the activated TCI state is indicated by MAC CE signaling.
[0469] Optionally, the MAC CE signaling indicates an activated TCI state, including at least one of the following:
[0470] The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling;
[0471] When the TCI state corresponding to the CORESET is not a unified TCI state, the TCI state corresponding to the CORESET is indicated by MAC CE signaling, where the MAC CE signaling includes a CORESET ID of the CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate the TCI state corresponding to the CORESET.
[0472] Optionally, the triggering event includes at least one of the following:
[0473] The beam quality of the first beam is lower than a first threshold value;
[0474] The beam quality of the second beam is higher than a second threshold value;
[0475] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0476] Optionally, the beam quality includes at least one of the following:
[0477] Layer 1 reference signal received strength L1-RSRP;
[0478] Layer 1 signal to interference plus noise ratio L1-SINR;
[0479] Uplink transmit power.
[0480] Optionally, the method further includes:
[0481] Second configuration information is received, where the second configuration information is used to configure a third reference signal resource, and the third reference signal resource is used to determine the second beam.
[0482] Optionally, the beam report includes at least one of the following:
[0483] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0484] beam quality of a reference signal resource corresponding to the beam report;
[0485] Sounding Reference Signal (SRS) port support capability of the terminal;
[0486] a power headroom of the terminal;
[0487] The maximum allowed radiated MPE power back-off change of the terminal;
[0488] Uplink transmission power of the terminal;
[0489] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0490] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0491] Optionally, the indicated TCI state or unified TCI state is used for transmission of at least two of the following:
[0492] Physical downlink control channel PDCCH;
[0493] Physical downlink shared channel PDSCH;
[0494] Physical uplink control channel PUCCH;
[0495] Physical uplink shared channel PUSCH;
[0496] Channel State Information Reference Signal CSI-RS;
[0497] Sounding Reference Signal SRS.
[0498] For a detailed description of steps 3201-3203, please refer to the above embodiment description.
[0499] The communication method involved in the embodiments of the present disclosure may include at least one of steps 3201 to 3203. For example, step 3201 may be implemented as an independent embodiment, step 3202 may be implemented as an independent embodiment, step 3203 may be implemented as an independent embodiment, and steps 3201+3202 may be implemented as independent embodiments, but are not limited thereto.
[0500] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0501] FIG4A is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4A , the embodiment of the present disclosure relates to a communication method for a network device, the method comprising:
[0502] Step 4101: Send first configuration information.
[0503] Step 4102: Send the first message.
[0504] Step 4103: Send the second configuration information.
[0505] Step 4104: Configure at least one trigger event.
[0506] Step 4105: Receive beam report.
[0507] For a detailed description of steps 4101-4105, please refer to the above embodiment description.
[0508] The communication method involved in the embodiments of the present disclosure may include at least one of steps 4101 to 4105. For example, step 4101 may be implemented as an independent embodiment, step 4102 may be implemented as an independent embodiment, step 4103 may be implemented as an independent embodiment, and steps 4101+4102 may be implemented as independent embodiments, but are not limited thereto.
[0509] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0510] FIG4B is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in FIG4B , the embodiment of the present disclosure relates to a communication method for a network device, the method comprising:
[0511] Step 4201: Send first configuration information and / or first information.
[0512] Optionally, the first configuration information is used to configure at least one first reference signal resource; optionally, the first information is used to indicate and / or activate a TCI state, and the TCI state is used by the terminal to determine at least one first reference signal resource, wherein the first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a trigger event, and the trigger event is used to trigger the terminal to send a beam report.
[0513] Optionally, the first information is used to indicate a TCI status, including:
[0514] The first information is used to indicate an indicated TCI state or a unified TCI state, where the indicated TCI state or the unified TCI state may be used for transmission of at least two channels and / or at least two reference signals; and / or
[0515] The first information is used to activate the TCI state, including at least one of the following:
[0516] The first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal;
[0517] The first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0518] Optionally, the TCI state includes at least one of a downlink TCI state DL TCI state, a joint TCI state and an uplink TCI state UL TCI state.
[0519] Optionally, the TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state.
[0520] Optionally, the first information is used to indicate an indicated TCI state or a unified TCI state, including:
[0521] The first information includes MAC CE signaling, the MAC CE signaling activates the TCI state corresponding to the first codepoint, the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0522] Optionally, the first information is used to indicate an indicated TCI state or a unified TCI state, including:
[0523] The first information includes DCI signaling, and the TCI status indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state; wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI status indication field in the DCI signaling activated by MAC CE signaling.
[0524] Optionally, the first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal, including:
[0525] The first information includes MAC CE signaling, where the MAC CE signaling includes a CORESET ID of a CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate a TCI state corresponding to the CORESET.
[0526] Optionally, the first information is used to activate the TCI state corresponding to each codepoint in multiple codepoints corresponding to the TCI state indication field in the DCI signaling, including:
[0527] The first information includes MAC CE signaling, and the MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
[0528] Optionally, the method further includes:
[0529] Second configuration information is sent, where the second configuration information is used to configure a third reference signal resource, the third reference signal resource is used to determine a second beam, and the beam quality of the second beam is used by the terminal to determine whether the beam meets a trigger event.
[0530] Optionally, the triggering event includes at least one of the following:
[0531] The beam quality of the first beam is lower than a first threshold value;
[0532] The beam quality of the second beam is higher than a second threshold value;
[0533] The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
[0534] Optionally, the beam quality includes at least one of the following:
[0535] Layer 1 reference signal received strength L1-RSRP;
[0536] Layer 1 signal to interference plus noise ratio L1-SINR;
[0537] Uplink transmit power.
[0538] Optionally, the beam report includes at least one of the following:
[0539] At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report;
[0540] beam quality of a reference signal resource corresponding to the beam report;
[0541] Sounding Reference Signal (SRS) port support capability of the terminal;
[0542] a power headroom of the terminal;
[0543] The maximum allowed radiated MPE power back-off change of the terminal;
[0544] Uplink transmission power of the terminal;
[0545] A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report;
[0546] A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
[0547] Optionally, the indicated TCI state or unified TCI state is used for transmission of at least two of the following:
[0548] Physical downlink control channel PDCCH;
[0549] Physical downlink shared channel PDSCH;
[0550] Physical uplink control channel PUCCH;
[0551] Physical uplink shared channel PUSCH;
[0552] Channel State Information Reference Signal CSI-RS;
[0553] Sounding Reference Signal SRS.
[0554] For a detailed description of step 4201, please refer to the above embodiment description.
[0555] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0556] Figure 5 is an interactive diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the embodiment of the present disclosure relates to a communication method for a communication system including a terminal and a network device. The method includes at least one of the following:
[0557] Step 5101: The network device sends first configuration information and / or first information;
[0558] Step 5102: The terminal determines at least one first reference signal resource.
[0559] Step 5103: The terminal determines whether the beam meets a triggering event based on the beam quality of the first beam.
[0560] Step 5104: When the terminal meets at least one triggering event, the terminal sends the beam report.
[0561] Optional implementations of steps 5101 to 5104 can be found in the above embodiments.
[0562] In some embodiments, the above method may include the method described in the above embodiments of the communication system side, the first device side, the network device side, etc., which will not be repeated here.
[0563] The communication method involved in the embodiment of the present disclosure may include at least one of steps 5101 to 5102. For example, step 5101 may be implemented as an independent embodiment, and step 5102 may be implemented as an independent embodiment, but the present invention is not limited thereto.
[0564] In this embodiment or example, unless there is any contradiction, each step can be independent, arbitrarily combined or exchanged in order, the optional methods or optional examples can be arbitrarily combined, and can be arbitrarily combined with any steps of other embodiments or other examples.
[0565] The following is an exemplary introduction to the above method.
[0566] Optional example 1. The terminal determines a first reference signal resource, where the first reference signal resource is used to determine the current beam in an event (also referred to as a trigger condition). The terminal sends a beam report based on the first reference signal resource and the event when the event trigger condition is met.
[0567] a) The beam can be called beam, spatial Rx parameter, QCL (quasi-co location) Type D, spatial setting, spatial reception filter, spatial transmission filter, spatial domain filter, TCI state, joint TCI state, DL TCI state, UL TCI state, unified TCI state, common TCI state, spatialrelationinfo, etc.
[0568] Optional Example 2. Based on Optional Example 1, the beam report includes at least one of the following
[0569] a) RS ID: SSB ID, CSI-RS ID
[0570] b) L1-RSRP
[0571] c) L1-SINR
[0572] d)Capabilityindex: the maximum number of supported SRS port
[0573] e)Power headroom
[0574] f)MPE:Power backoff
[0575] g)UL transmission power: for example, power headroom–power backoff
[0576] h)Event ID
[0577] Optional Example 3. Based on Optional Example 1, the terminal receives configuration information from the base station, where the configuration information is used to configure a first reference signal resource, and the first reference signal resource includes at least one reference signal resource.
[0578] Optional Example 4. Based on Optional Example 1, the terminal determines the first reference signal resource based on at least one of the following (for example, when the base station does not configure the first reference signal resource):
[0579] a) Determined based on the RS in the TCI state corresponding to the CORESET, that is, the RS is the first reference signal resource (if there are two RSs in the TCI state, the RS corresponding to type D is selected)
[0580] i. When the number of RSs corresponding to multiple CORESETs exceeds M, they are selected according to the priority. The priority is as follows:
[0581] 1. Select in ascending order of the monitoring period of the search space set associated with the CORESET
[0582] a) Give priority to CORESET with short SS set period
[0583] 2. If the cycles are the same, select in descending order of CORESET ID
[0584] a) Give priority to selecting the CORESET with the largest ID
[0585] ii. It should be noted that the TCI state of the CORESET can be the unified TCI state used directly, or the unified TCI state is not used, and then the MAC CE separately includes the CORESET ID and the TCI state ID corresponding to the CORESET to indicate the TCI state corresponding to the CORESET.
[0586] 1. The unified TCI state is indicated based on DCI or MAC CE
[0587] a) If the base station MAC CE indicates, the MAC CE only activates the TCI state corresponding to one codepoint, which corresponds to the TCI state indication field in the DCI
[0588] b) If the base station indicates based on MAC CE and DCI, the MAC CE activates the TCI state corresponding to each of the up to 8 codepoints corresponding to the TCI state indication field in the DCI, and then the TCI state indication field in the DCI indicates one of the 8 codepoints, thereby instructing the terminal to determine the TCI state corresponding to the codepoint.
[0589] b) Determined based on the RS in the unified TCI state, that is, the RS is the first reference signal resource (if there are two RSs in the TCI state, the RS corresponding to type D is selected)
[0590] i. As mentioned above, it is possible that all CORESETs do not adopt the unified TCI state, so we hope to adopt the unified TCI state.
[0591] 1. If it is in joint TCI state, it is used for transmission of PDSCH, PUSCH, PUCCH, CSI-RS, and SRS. Of course, it can also be used for PDCCH. However, as mentioned above, if it is not used for CORESET, it needs to be added here.
[0592] 2. If it is a separate TCI state, the DL TCI state is used for the transmission of PDSCH and CSI-RS. Of course, it may also be used for PDCCH. However, as mentioned earlier, if it is not used for CORESET, it needs to be added here. The UL TCI state is used for the transmission of PUSCH, PUCCH, and SRS.
[0593] c) Determined based on the RS corresponding to the currently activated joint / DL TCI state / UL TCI state, that is, the RS is the first reference signal resource (if there are two RSs in the TCI state, select the RS corresponding to type D), which can include the RS corresponding to all activated joint / DL TCI state / UL TCI state, or a subset
[0594] i. The currently activated TCI states here definitely include the TCI states in b above, but not necessarily all TCI states in a. This set will contain more RSs. Because the base station can dynamically select and indicate the activated TCI states to the terminal using DCI at any time, it is necessary to monitor all of them as current beams.
[0595] 1. Here, UL TCI state is also included, or it may not include UL TCI state
[0596] Optional Example 5. Current beam, current beam, may also be called serving beam, serving beam, or simply called first beam or first beam set.
[0597] Optional Example 6. Based on 1, the event includes at least one of the following:
[0598] a) The current beam quality is lower than the threshold
[0599] i. Wherein the quality can be L1-RSRP, L1-SINR,
[0600] ii. Or quality can also be uplink transmit power,
[0601] 1. When the current beam being monitored is in joint or UL TCI state, and / or the candidate beam being monitored is intended to be used in joint or UL TCI state
[0602] b) The quality of the candidate beam is higher than the threshold
[0603] i. Candidate beams are also called new beams, target beams, etc.
[0604] c) The candidate beam is one offset higher than the current beam quality
[0605] Based on 6, if the event includes monitoring candidate beams, the terminal determines the reference signal resources corresponding to the candidate beams based on the base station configuration.
[0606] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
[0607] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.
[0608] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.
[0609] FIG6A is a schematic diagram of the structure of a terminal proposed in an embodiment of the present disclosure. As shown in FIG6A , it includes:
[0610] a processing module, configured to determine at least one first reference signal resource, where the first reference signal resource is used to determine a first beam;
[0611] The processing module is further configured to determine, based on the beam quality of the first beam, whether the beam satisfies a triggering event, wherein the triggering event is used to trigger the terminal to send a beam report;
[0612] The transceiver module is used to send the beam report when the terminal meets at least one triggering event.
[0613] Optionally, the transceiver module is used to execute the steps related to "transmitting and receiving" executed by the terminal in any of the above methods. The processing module is used to execute the steps related to "processing" executed by the terminal in any of the above methods.
[0614] FIG6B is a schematic diagram of the structure of the network device proposed in an embodiment of the present disclosure. As shown in FIG6B , it includes:
[0615] a transceiver module, configured to send first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or
[0616] The transceiver module is configured to send first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource.
[0617] The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
[0618] Optionally, the above-mentioned transceiver module is used to execute the steps related to "transmitting and receiving" performed by the network device in any of the above methods, and the above-mentioned network device also includes a processing module, which is used to execute the steps related to "processing" performed by the network device in any of the above methods.
[0619] Figure 7A is a schematic diagram of the structure of a communication device 7100 proposed in an embodiment of the present disclosure. Communication device 7100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user device or the first device described above), a chip, a chip system, or a processor that supports a network device in implementing any of the above methods, or a chip, a chip system, or a processor that supports a terminal in implementing any of the above methods. Communication device 7100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.
[0620] As shown in Figure 7A, the communication device 7100 includes one or more processors 7101. The processor 7101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The processor 7101 is used to call instructions to enable the communication device 7100 to perform any of the above methods.
[0621] In some embodiments, the communication device 7100 further includes one or more memories 7102 for storing instructions. Optionally, all or part of the memories 7102 may be located outside the communication device 7100.
[0622] In some embodiments, the communication device 7100 further includes one or more transceivers 7103. When the communication device 7100 includes one or more transceivers 7103, the communication steps such as sending and receiving in the above method are performed by the transceiver 7103, and the other steps are performed by the processor 7101.
[0623] In some embodiments, a transceiver may include a receiver and a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.
[0624] Optionally, the communication device 7100 further includes one or more interface circuits 7104, which are connected to the memory 7102. The interface circuits 7104 may be configured to receive signals from the memory 7102 or other devices, and may be configured to send signals to the memory 7102 or other devices. For example, the interface circuits 7104 may read instructions stored in the memory 7102 and send the instructions to the processor 7101.
[0625] The communication device 7100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 7100 described in the present disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
[0626] 7B is a schematic diagram of the structure of a chip 7200 proposed in an embodiment of the present disclosure. If the communication device 7100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 7200 shown in FIG7B , but the present disclosure is not limited thereto.
[0627] The chip 7200 includes one or more processors 7201 , and the processor 7201 is used to call instructions so that the chip 7200 executes any of the above methods.
[0628] In some embodiments, chip 7200 further includes one or more interface circuits 7202, which are connected to memory 7203. Interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and can be used to send signals to memory 7203 or other devices. For example, interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201. Optionally, the terms interface circuit, interface, transceiver pin, and transceiver are interchangeable.
[0629] In some embodiments, the chip 7200 further includes one or more memories 7203 for storing instructions. Alternatively, all or part of the memories 7203 may be located outside the chip 7200.
[0630] The present disclosure also proposes a storage medium having instructions stored thereon. When the instructions are executed on the communication device 7100, the communication device 7100 executes any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto and may also be a temporary storage medium.
[0631] The present disclosure also provides a program product, which, when executed by the communication device 7100, enables the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.
[0632] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.
[0633] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented using software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product includes one or more computer programs. When the computer program is loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present disclosure are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer program can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer program can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).
[0634] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this disclosure.
[0635] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.
[0636] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.
Claims
1. A communication method, characterized in that: Executed by a terminal, the method includes: determining at least one first reference signal resource, where the first reference signal resource is used to determine a first beam; Determining, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report; When the terminal meets at least one triggering event, the beam report is sent.
2. The method according to claim 1, wherein The determining of at least one first reference signal resource includes at least one of the following: receiving first configuration information, where the first configuration information is used to configure at least one first reference signal resource; determining at least one first reference signal resource based on a transmission configuration indication TCI state; At least one first reference signal resource is determined based on protocol agreement.
3. The method according to claim 2, wherein The determining of at least one first reference signal resource based on the TCI state includes at least one of the following: Determine at least one first reference signal resource based on the reference signal resource corresponding to the TCI state corresponding to the control resource set CORESET of the terminal; determining at least one first reference signal resource based on a reference signal resource corresponding to an indicated TCI state, wherein the indicated TCI state is used for transmission of at least two channels and / or at least two reference signals; Determine at least one first reference signal resource based on the reference signal resource corresponding to the activated TCI state; in The TCI state includes at least one of a downlink TCI state (DL TCI state), a joint TCI state, and an uplink TCI state (UL TCI state).
4. The method according to claim 2 or 3, wherein: The determining at least one first reference signal resource based on the TCI state includes: The reference signal resources corresponding to the TCI state include two reference signal resources, and a reference signal resource of type D of the quasi co-location type QCL type among the reference signal resources corresponding to the TCI state is determined as the first reference signal resource.
5. The method according to claim 3, wherein The determining at least one first reference signal resource based on a reference signal resource corresponding to a TCI state corresponding to a CORESET of the terminal includes: If the number of TCI states corresponding to the multiple CORESETs of the terminal exceeds the first value, select some CORESETs from the multiple CORESETs according to a priority rule; The reference signal resource corresponding to the TCI state corresponding to the part of CORESETs is determined as the first reference signal resource.
6. The method according to claim 5, wherein The priority rules include at least one of the following: Prioritize CORESET with short search space set SS set period; Prioritize the CORESET with a larger CORESET ID.
7. The method according to any one of claims 3 to 6, characterized in that: The TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state, and the unified TCI state is used for transmission of at least two channels and / or at least two reference signals.
8. The method according to claim 3 or 7, wherein: The indicated TCI state or the unified TCI state is indicated by a media access control layer control unit MAC CE signaling, or the indicated TCI state or the unified TCI state is indicated by downlink control information DCI signaling and MAC CE signaling.
9. The method according to claim 8, wherein The MAC CE signaling indicating the indicated TCI state or the unified TCI state includes: The MAC CE signaling activates a TCI state corresponding to a first codepoint, where the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of multiple codepoints corresponding to a TCI state indication field in the DCI signaling; and / or The MAC CE signaling and the DCI signaling indicating the indicated TCI state or the unified TCI state include: The MAC CE signaling activates the TCI state corresponding to each of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, and the TCI state indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
10. The method according to claim 3 or 7, wherein: The activated TCI state is indicated by MAC CE signaling.
11. The method according to claim 10, wherein The MAC CE signaling indicates an activated TCI state, including at least one of the following: The MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling; When the TCI state corresponding to the CORESET is not a unified TCI state, the TCI state corresponding to the CORESET is indicated by MAC CE signaling, where the MAC CE signaling includes a CORESET ID of the CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate the TCI state corresponding to the CORESET.
12. The method according to any one of claims 1 to 11, wherein: The triggering event includes at least one of the following: The beam quality of the first beam is lower than a first threshold value; The beam quality of the second beam is higher than a second threshold value; The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
13. The method according to claim 12, wherein: The beam quality includes at least one of the following: Layer 1 reference signal received strength L1-RSRP; Layer 1 signal to interference plus noise ratio L1-SINR; Uplink transmit power.
14. The method according to claim 12 or 13, wherein: The method further comprises: Second configuration information is received, where the second configuration information is used to configure a third reference signal resource, and the third reference signal resource is used to determine the second beam.
15. The method according to any one of claims 1 to 14, wherein: The beam report includes at least one of the following: At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report; beam quality of a reference signal resource corresponding to the beam report; Sounding Reference Signal (SRS) port support capability of the terminal; a power headroom of the terminal; The maximum allowed radiated MPE power back-off change of the terminal; Uplink transmission power of the terminal; A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report; A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
16. The method according to any one of claims 7 to 15, wherein: The indicated TCI state or unified TCI state is used to transmit at least two of the following: Physical downlink control channel PDCCH; Physical downlink shared channel PDSCH; Physical uplink control channel PUCCH; Physical uplink shared channel PUSCH; Channel State Information Reference Signal CSI-RS; Sounding Reference Signal SRS.
17. A communication method, characterized in that: Executed by a network device, the method includes: Sending first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or Sending first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource. The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
18. The method according to claim 17, wherein The first information is used to indicate the TCI status, including: The first information is used to indicate an indicated TCI state or a unified TCI state, where the indicated TCI state or the unified TCI state is used for transmission of at least two channels and / or at least two reference signals; and / or The first information is used to activate the TCI state, including at least one of the following: The first information is used to activate the TCI state corresponding to the control resource set CORESET of the terminal; The first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
19. The method according to claim 17 or 18, wherein: The TCI state includes at least one of a DL TCI state, a joint TCI state, and a UL TCI state.
20. The method according to claim 18 or 19, wherein The TCI state corresponding to the CORESET is a unified TCI state, or the TCI state corresponding to the CORESET is not a unified TCI state.
21. The method according to any one of claims 18 to 20, wherein: The first information is used to indicate the indicated TCI state or unified TCI state, including: The first information includes MAC CE signaling, the MAC CE signaling activates the TCI state corresponding to the first codepoint, the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state, wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
22. The method according to any one of claims 18 to 20, wherein: The first information is used to indicate the indicated TCI state or unified TCI state, including: The first information includes DCI signaling, and the TCI status indication field in the DCI signaling indicates a first codepoint to indicate to the terminal that the TCI state corresponding to the first codepoint is the indicated TCI state or the unified TCI state; wherein the first codepoint is any one of the multiple codepoints corresponding to the TCI status indication field in the DCI signaling activated by MAC CE signaling.
23. The method according to any one of claims 18 to 20, wherein: The first information is used to activate the TCI state corresponding to the CORESET of the terminal, including: The first information includes MAC CE signaling, where the MAC CE signaling includes a CORESET ID of the CORESET and a TCI state ID corresponding to the CORESET, where the TCI state ID is used to indicate a TCI state corresponding to the CORESET.
24. The method according to any one of claims 18 to 20, wherein: The first information is used to activate the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling, including: The first information includes MAC CE signaling, and the MAC CE signaling activates the TCI state corresponding to each codepoint in the multiple codepoints corresponding to the TCI state indication field in the DCI signaling.
25. The method according to any one of claims 17 to 24, wherein: The method further comprises: Second configuration information is sent, where the second configuration information is used to configure a third reference signal resource, the third reference signal resource is used to determine a second beam, and the beam quality of the second beam is used by the terminal to determine whether the beam meets a trigger event.
26. The method according to any one of claims 17 to 25, wherein: The triggering event includes at least one of the following: The beam quality of the first beam is lower than a first threshold value; The beam quality of the second beam is higher than a second threshold value; The beam quality of the second beam is higher than the beam quality of the first beam by a preset offset value.
27. The method according to any one of claims 17 to 26, wherein: The beam quality includes at least one of the following: Layer 1 reference signal received strength L1-RSRP; Layer 1 signal to interference plus noise ratio L1-SINR; Uplink transmit power.
28. The method according to any one of claims 17 to 27, wherein: The beam report includes at least one of the following: At least one first identifier, where the first identifier is used to indicate a reference signal resource corresponding to the beam report; beam quality of a reference signal resource corresponding to the beam report; Sounding Reference Signal (SRS) port support capability of the terminal; a power headroom of the terminal; The maximum allowed radiated MPE power back-off change of the terminal; Uplink transmission power of the terminal; A second identifier, where the second identifier is used to indicate a triggering event that triggers the beam report; A third identifier, where the third identifier is used to indicate a report configuration identifier, and the report configuration identifier is associated with the second identifier.
29. The method according to any one of claims 20 to 28, wherein: The indicated TCI state or unified TCI state is used to transmit at least two of the following: Physical downlink control channel PDCCH; Physical downlink shared channel PDSCH; Physical uplink control channel PUCCH; Physical uplink shared channel PUSCH; Channel State Information Reference Signal CSI-RS; Sounding Reference Signal SRS.
30. A communication method, used in a communication system, wherein the communication system includes a terminal and a network device, the method comprising: The network device sends first configuration information and / or first information, where the first configuration information is used to configure at least one first reference signal resource; The first information is used to indicate and / or activate a TCI state, and the TCI state is used by the terminal to determine at least one first reference signal resource, wherein the first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine the beam Whether a triggering event is satisfied, the triggering event being used to trigger the terminal to send a beam report; The terminal determines at least one first reference signal resource; The terminal determines, based on the beam quality of the first beam, whether the beam meets the triggering event; When the terminal satisfies at least one triggering event, the terminal sends the beam report.
31. A terminal, characterized in that: include: a processing module, configured to determine at least one first reference signal resource, where the first reference signal resource is used to determine a first beam; The processing module is further configured to determine, based on the beam quality of the first beam, whether the beam meets a triggering event, where the triggering event is used to trigger the terminal to send a beam report; The transceiver module is used to send the beam report when the terminal meets at least one triggering event.
32. A network device, characterized in that: include: a transceiver module, configured to send first configuration information, where the first configuration information is used to configure at least one first reference signal resource; and / or The transceiver module is configured to send first information, where the first information is used to indicate and / or activate a TCI state, where the TCI state is used by the terminal to determine at least one first reference signal resource. The first reference signal resource is used to determine a first beam, and the beam quality of the first beam is used by the terminal to determine whether the beam meets a triggering event, and the triggering event is used to trigger the terminal to send a beam report.
33. A communication device, characterized in that: include: one or more processors; A memory coupled to the processor, wherein instructions are stored in the memory, and when the instructions are executed by the processor, the communication device executes the method according to any one of claims 1 to 16 or claims 17 to 29.
34. A communication system, characterized in that The method comprises a terminal and a network device, wherein the terminal is configured to implement the method according to any one of claims 1 to 16, and the network device is configured to implement the method according to any one of claims 17 to 29.
35. A storage medium storing instructions, characterized in that: When the instruction is executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 16 or claims 17 to 29.
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