Information transmission method and apparatus, device, storage medium, and computer program product

Abstract

The present disclosure provides an information transmission method and apparatus, device, a storage medium, and a computer program product. The method comprises: sending first information to a network device, wherein the first information comprises at least one of the following: a channel state information reference signal resource indicator (CRI), a synchronization signal and physical broadcast channel block (SSB) identifier, and a transmission configuration indicator (TCI) state identifier; and receiving second information sent by the network device, wherein the second information is used by a terminal to determine quasi co-location (QCL) assumption and / or spatial domain filtering and / or TCI state to be applied.

Description

Information transmission methods, devices, equipment, storage media and computer program products

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202410579317.9, filed in China on May 10, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of wireless communication technology, and in particular to an information transmission method, apparatus, device, storage medium, and computer program product. Background Technology

[0004] Currently, in traditional beam management, networks can configure or activate frequent periodic or semi-persistent beam reports, or trigger frequent aperiodic beam reports, to promptly acquire the best or preferred beam for data or control transmissions. However, this obviously leads to large uplink reporting overhead and control signaling overhead. Furthermore, if low-frequency beam reporting is configured, the network cannot always acquire the "best or preferred" beam because the terminal's beam report may be outdated, resulting in performance degradation. Related technologies do not involve terminals reporting information related to the Quasi Co-Location (QCL) assumption and / or spatial domain filtering and / or Transmission Configuration Indication (TCI) status that the terminal expects to apply, nor do they involve network devices indicating the QCL assumption and / or spatial domain filtering and / or TCI status applied by the terminal based on the terminal's expectations. Summary of the Invention

[0005] In view of the above, the present disclosure aims to provide an information transmission method, apparatus, device, storage medium, and computer program product.

[0006] The technical solution of this disclosure embodiment is implemented as follows:

[0007] This disclosure provides an information transmission method applied to a terminal, the method comprising:

[0008] Send first information to the network device; the first information includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI), Synchronization Signal and Physical Broadcast Channel Block (SSB) identifier, and TCI status identifier;

[0009] The terminal receives second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0010] Furthermore, according to at least one embodiment of this disclosure, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0011] Furthermore, according to at least one embodiment of this disclosure, receiving the second information sent by the network device includes:

[0012] The second information is indicated by Downlink Control Information (DCI).

[0013] Furthermore, according to at least one embodiment of this disclosure, the method further includes:

[0014] If the DCI meets the first preset condition, the terminal determines the TCI status of the application based on the second information;

[0015] Determine the effective time of the TCI state;

[0016] The TCI state is applied at the effective time.

[0017] Furthermore, according to at least one embodiment of this disclosure, the second information reuses the TCI status indication field in the DCI.

[0018] Furthermore, according to at least one embodiment of this disclosure, determining the effective time of the TCI state includes:

[0019] After receiving the DCI, determine the first moment to send a Hybrid Automatic Repeat Request-Acknowledgment (HARQ-ACK) response to the network device;

[0020] Based on the first time and the second time, the effective time of the TCI state is determined; wherein, the second time represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0021] Furthermore, according to at least one embodiment of this disclosure, the DCI satisfies a first preset condition, including:

[0022] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0023] Furthermore, according to at least one embodiment of this disclosure, the N indicator fields in the DCI take specific values, including at least one of the following:

[0024] The Redundancy Version (RV) indicator field in the DCI is set to all 1s.

[0025] The Modulation and Coding Scheme (MCS) indicator field in the DCI is set to all 1s.

[0026] The value of the New Data Indicator (NDI) field in the DCI is 0;

[0027] For Frequency Domain Resource Allocation (FDRA) type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0028] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0029] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0030] Furthermore, according to at least one embodiment of this disclosure, the method further includes:

[0031] When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information;

[0032] Determine the third moment when the second information is received;

[0033] Based on the third and fourth moments, a fifth moment is determined; wherein, the fourth moment represents a moment predefined by the protocol, a moment preconfigured by the network, or a moment when the terminal reports the first information;

[0034] At the fifth time point, the determined QCL assumptions and / or spatial domain filtering and / or TCI states are applied.

[0035] Furthermore, according to at least one embodiment of this disclosure, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0036] The method further includes:

[0037] Using the CRI or SSB identifier in the first information, determine the QCL assumption applied to receive downlink signals or channels;

[0038] And / or,

[0039] Using the CRI or SSB identifier in the first information, determine the spatial domain filtering applied to the uplink signal or channel;

[0040] And / or,

[0041] Update the TCI status using the TCI status identifier in the first information.

[0042] Furthermore, according to at least one embodiment of this disclosure, the first information includes a plurality of CRIs and / or a plurality of SSB identifiers and / or a plurality of TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported plurality of CRIs and / or one SSB identifier from the reported plurality of SSB identifiers and / or one TCI status identifier from the reported plurality of TCI status identifiers.

[0043] The method further includes:

[0044] Using the CRI or SSB identifier selected by the network device, determine the QCL assumptions applied to receive downlink signals or channels;

[0045] And / or,

[0046] Using the CRI or SSB identifier selected by the network device, determine the spatial domain filtering applied to transmit uplink signals or channels;

[0047] And / or,

[0048] The TCI status is updated using the TCI status identifier selected by the network device.

[0049] Furthermore, according to at least one embodiment of this disclosure, the DCI satisfies a second preset condition, including:

[0050] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0051] Furthermore, according to at least one embodiment of this disclosure, the M indicator fields in the DCI take specific values, including:

[0052] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0053] or,

[0054] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0055] This disclosure provides an information transmission method applied to a network device, the method comprising:

[0056] The receiving terminal sends first information; the first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier;

[0057] Send a second message to the terminal; the second message is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0058] Furthermore, according to at least one embodiment of this disclosure, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0059] Furthermore, according to at least one embodiment of this disclosure, sending the second information to the terminal includes:

[0060] The second information is indicated via DCI.

[0061] Furthermore, according to at least one embodiment of this disclosure, the second information is used by the terminal to determine the applied TCI state when the DCI meets a first preset condition, so that the terminal can apply the TCI state at the effective time of the TCI state.

[0062] Furthermore, according to at least one embodiment of this disclosure, the second information reuses the TCI status indication field in the DCI.

[0063] Furthermore, according to at least one embodiment of this disclosure, the effective time of the TCI state is determined by the terminal after receiving the DCI, when it determines to send a HARQ-ACK response to the network device, and is determined based on the first time and the second time; wherein, the second time represents a time predefined by the protocol or a time pre-configured by the network or a time when the terminal reports the first information.

[0064] Furthermore, according to at least one embodiment of this disclosure, the DCI satisfies a first preset condition, including:

[0065] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0066] Furthermore, according to at least one embodiment of this disclosure, the N indicator fields in the DCI take specific values, including at least one of the following:

[0067] The RV indicator field in the DCI takes the value of all 1s;

[0068] The MCS indicator field in the DCI takes the value of all 1s;

[0069] The value of the NDI indicator field in the DCI is 0;

[0070] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0071] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0072] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0073] Furthermore, according to at least one embodiment of this disclosure, the second information is used by the terminal to determine the applied QCL assumption and / or spatial domain filtering and / or TCI state when the DCI meets the second preset condition, so that the terminal can apply the determined QCL assumption and / or spatial domain filtering and / or TCI state at a fifth time; the fifth time is the third time at which the terminal determines to receive the second information, and is determined based on the third time and the fourth time; wherein, the fourth time represents a time predefined by the protocol or a time pre-configured by the network or a time when the terminal reports the first information.

[0074] Furthermore, according to at least one embodiment of this disclosure, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0075] Furthermore, according to at least one embodiment of this disclosure, the first information includes a plurality of CRIs and / or a plurality of SSB identifiers and / or a plurality of TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported plurality of CRIs, and / or, select one SSB identifier from the reported plurality of SSB identifiers, and / or, select one TCI status identifier from the reported plurality of TCI status identifiers.

[0076] Furthermore, according to at least one embodiment of this disclosure, the DCI satisfies a second preset condition, including:

[0077] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0078] Furthermore, according to at least one embodiment of this disclosure, the M indicator fields in the DCI take specific values, including:

[0079] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0080] or,

[0081] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0082] At least one embodiment of this disclosure provides an information transmission apparatus, comprising:

[0083] A first sending module is configured to send first information to a network device; the first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier;

[0084] The first receiving module is used to receive second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0085] At least one embodiment of this disclosure provides an information transmission apparatus, comprising:

[0086] The second receiving module is used to receive first information sent by the terminal; the first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier;

[0087] The second sending module is used to send second information to the terminal; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0088] At least one embodiment of this disclosure provides a terminal including a processor and a memory for storing a computer program capable of running on the processor.

[0089] Wherein, when the processor is used to run the computer program, it executes the steps of any of the methods described above on the terminal side.

[0090] At least one embodiment of this disclosure provides a network device including a processor and a memory for storing computer programs capable of running on the processor.

[0091] Wherein, when the processor is used to run the computer program, it executes the steps of any of the methods described above on the network device side.

[0092] At least one embodiment of this disclosure provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the methods described above for the terminal side, or implements the steps of any of the methods described above for the network device side.

[0093] At least one embodiment of this disclosure provides a computer program product, including a computer program, wherein when the computer program is executed by a processor, it implements the method described in any of the above-described terminal-side methods, or implements the method described in any of the above-described network device-side methods.

[0094] The information transmission method, apparatus, device, storage medium, and computer program product provided in this disclosure include: a terminal sending first information to a network device; the first information including at least one of the following: CRI, SSB identifier, and TCI status identifier; receiving second information sent by the network device; the second information being used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI status of an application.

[0095] Using the technical solution provided in this disclosure, the terminal reports information related to the QCL assumption and / or spatial domain filtering and / or TCI state that the terminal expects to apply to the network device, namely, the first information. The first information includes at least one of the following: CRI, SSB identifier, and TCI state identifier. Thus, the network device can instruct the second information to the terminal according to the terminal's expectations, thereby allowing the terminal to determine the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information. Attached Figure Description

[0096] Figure 1 is a schematic diagram of the effective time of TCI in related technologies;

[0097] Figure 2 is a schematic diagram of the implementation process of the information transmission method according to an embodiment of this disclosure;

[0098] Figure 3 is a schematic diagram of the implementation process of the information transmission method according to an embodiment of this disclosure;

[0099] Figure 4 is a schematic diagram of the specific implementation process of the information transmission method according to an embodiment of this disclosure;

[0100] Figure 5 is a schematic diagram of the specific implementation process of the information transmission method according to an embodiment of this disclosure;

[0101] Figure 6 is a schematic diagram of the specific implementation process of the information transmission method according to an embodiment of this disclosure;

[0102] Figure 7 is a schematic diagram of the composition structure of the information transmission device according to an embodiment of this disclosure;

[0103] Figure 8 is a schematic diagram of the composition structure of the information transmission device according to an embodiment of this disclosure;

[0104] Figure 9 is a schematic diagram of the composition structure of the terminal according to an embodiment of this disclosure;

[0105] Figure 10 is a schematic diagram of the composition structure of a network device according to an embodiment of this disclosure. Detailed Implementation

[0106] Before introducing the technical solutions of the embodiments of this disclosure, the relevant technologies will be introduced first.

[0107] In related technologies, the periodic beam management process may include: the base station configuring a periodic Channel State Information (CSI) report for the terminal, used for reporting Layer 1 Reference Signal Received Power (L1-RSRP) or Layer 1 Signal-to-Interference Plus Noise Ratio (L1-SINR), and associating a periodic Channel State Information-Reference Signal (CSI-RS) or SSB resource set for measurement with this CSI report. After the terminal measures and feeds back the CSI, the base station instructs the terminal to provide a unified TCI state, used to determine the TCI state of the uplink and downlink channels.

[0108] The unified TCI indication process follows the architecture of Radio Resource Control (RRC) + Media Access Control-Control Element (MAC-CE) + Downlink Control Information (DCI). The DCI format includes DCI format 1_1 or DCI format 1_2, and data can be released without scheduling, similar to semi-static scheduling (SPS) release.

[0109] Referring to Figure 1, which is a schematic diagram of the effective time of TCI in related technologies, as shown in Figure 1, the effective time of TCI refers to at least Y symbols after the last symbol of the HARQ-ACK corresponding to the DCI indicating TCI, and the Y symbols are the Beam Application Time (BAT).

[0110] Currently, in traditional beam management, networks can configure or activate frequent periodic or semi-persistent beam reporting (e.g., N best beams and corresponding L1 RSRPs), or trigger frequent aperiodic beam reporting, to promptly acquire the best or preferred beam for data or control transmissions. However, this obviously leads to large uplink (UL) reporting overhead and control signaling overhead. Furthermore, if low-frequency beam reporting is configured, the network cannot always acquire the "best or preferred" beam because the UE's beam report may be outdated, resulting in performance degradation.

[0111] Considering that UEs have a better and more timely understanding of beam quality changes, UE-initiated beam reporting procedures allow the network to obtain beam reports more promptly while reducing reporting overhead. Under this process, if the UE determines that the current beam quality has deteriorated, the UE can trigger a beam report, and the network does not need to configure or trigger frequent reporting.

[0112] However, the related technologies do not involve the terminal reporting information related to the QCL assumptions and / or spatial domain filtering and / or TCI states that the terminal expects to apply, nor do they involve the network device indicating the QCL assumptions and / or spatial domain filtering and / or TCI states applied by the terminal according to the terminal's expectations.

[0113] Based on this, in this embodiment of the disclosure, the terminal sends first information to the network device; the first information includes at least one of the following: CRI, SSB identifier, TCI status identifier; and receives second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI status of the application.

[0114] Referring to Figure 2, which is a schematic flowchart of the information transmission method according to an embodiment of this disclosure, applied to a terminal, the method includes steps 201 to 202:

[0115] Step 201: Send first information to the network device; the first information includes at least one of the following: CRI, SSB identifier, TCI status identifier.

[0116] Here, considering that the terminal has a better and more timely understanding of beam quality changes, the beam reporting process initiated by the terminal allows the network to obtain beam reports more promptly while reducing reporting overhead. In this process, if the terminal determines that the current beam quality has deteriorated, for example, to a level less than a preset threshold, the terminal can trigger a beam report, and the network does not need to configure or trigger frequent reports.

[0117] Here, when the terminal initiates a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply to the network device, namely the first information.

[0118] Here, the network equipment mentioned can refer to base stations, etc.

[0119] In one embodiment, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0120] Here, the terminal sending the first information to the network device may include:

[0121] The terminal reports one or X CRIs to the network device;

[0122] And / or,

[0123] The terminal reports one or X SSB identifiers to the network device;

[0124] And / or,

[0125] The terminal reports one or X TCI status identifiers to the network device.

[0126] Where X is an integer greater than 1.

[0127] Here, the CRI or SSB identifier is used to indicate the QCL assumption or spatial domain filtering that the terminal expects to apply, and the TCI status identifier is used to indicate the TCI status that the terminal expects to apply.

[0128] Here, the terminal sending the first information to the network device may include:

[0129] The terminal sends first information to the network device when the following conditions are met:

[0130] In the TCI state, the L1-RSRP of the QCL reference signal (RS) configured is less than the preset threshold value.

[0131] Here, before the terminal triggers a beam report, the network device can indicate the TCI status to the terminal. Thus, if the L1-RSRP of the RS of the QCL configured in the TCI status is less than a preset threshold, the terminal can send the first information to the network device.

[0132] Step 202: Receive the second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0133] In one embodiment, receiving the second information sent by the network device includes:

[0134] The second information is indicated via DCI.

[0135] Here, the statement that the second information is indicated by the DCI can be understood as the DCI carrying the second information.

[0136] The process by which the terminal determines the QCL assumption and / or spatial domain filtering and / or TCI state of the application is described below, in different cases.

[0137] In the first scenario, if the DCI meets the first preset condition, the second information is used by the terminal to determine the TCI status of the application.

[0138] Based on this, in one embodiment, the method further includes:

[0139] If the DCI meets the first preset condition, the terminal determines the TCI status of the application based on the second information;

[0140] Determine the effective time of the TCI state;

[0141] The TCI state is applied at the effective time.

[0142] In one embodiment, the second information reuses the TCI status indication field in the DCI.

[0143] Here, if the terminal reports a TCI status identifier to the network device, the network device can use the TCI status corresponding to the TCI status reported by the terminal as the TCI status indicated by the second information;

[0144] or,

[0145] If the terminal reports multiple TCI status identifiers to the network device, the network device may use any one of the multiple TCI status identifiers reported by the terminal as the TCI status indicated by the second information.

[0146] In one embodiment, determining the effective time of the TCI state includes:

[0147] After receiving the DCI, determine the first moment to send a HARQ-ACK response to the network device;

[0148] Based on the first time and the second time, the effective time of the TCI state is determined; wherein, the second time represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0149] Here, after receiving the DCI carrying the second information, the terminal can send a HARQ-ACK response to the network device.

[0150] Here, determining the effective time of the TCI state based on the first time and the second time may mean summing the first time and the second time to obtain the effective time of the TCI state.

[0151] Specifically, the effective time of the TCI state = first time + second time = feedback time of HARQ-ACK response + first BAT, where the first BAT represents the second time, that is, the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information. In other words, the TCI state indicated by the second information carried in the DCI takes effect at this effective time.

[0152] In one embodiment, the DCI satisfies a first preset condition, including:

[0153] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0154] Here, the DCI can be a cyclic redundancy check (CRC) DCI that scrambles the configured scheduling-radio network temporary identity (CS-RNTI).

[0155] In one embodiment, the N indicator fields in the DCI take specific values, including at least one of the following:

[0156] The RV indicator field in the DCI takes the value of all 1s;

[0157] The MCS indicator field in the DCI takes the value of all 1s;

[0158] The value of the NDI indicator field in the DCI is 0;

[0159] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0160] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0161] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0162] Here, N can be equal to 4.

[0163] Here, the RV indicator field is used to indicate the redundancy version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission; the NDI indicator field is used to indicate whether the scheduled data is a new transmission or a retransmission; the FDRA indicator field is used to indicate frequency domain resources, with type 0 being a non-contiguous resource allocation type and type 1 being a contiguous resource allocation type.

[0164] In one embodiment, the method further includes:

[0165] When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information;

[0166] Determine the third moment when the second information is received;

[0167] Based on the third and fourth moments, a fifth moment is determined; wherein, the fourth moment represents a moment predefined by the protocol, a moment preconfigured by the network, or a moment when the terminal reports the first information;

[0168] At the fifth time point, the determined QCL assumptions and / or spatial domain filtering and / or TCI states are applied.

[0169] Here, determining the fifth time based on the third and fourth times can mean summing the third and fourth times to obtain the fifth time.

[0170] Specifically, the fifth moment = the third moment + the fourth moment = the third moment when the terminal receives the second information + the second BAT, where the second BAT represents the fourth moment, that is, the moment predefined by the protocol or the moment pre-configured by the network or the moment when the terminal reports the first information. In other words, at this fifth moment, the terminal applies the determined QCL assumption and / or spatial domain filtering and / or TCI state.

[0171] In the second scenario, if the DCI meets the second preset condition, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0172] Based on this, in one embodiment, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0173] The method further includes:

[0174] Using the CRI or SSB identifier in the first information, determine the QCL assumption applied to receive downlink signals or channels;

[0175] And / or,

[0176] Using the CRI or SSB identifier in the first information, determine the spatial domain filtering applied to the uplink signal or channel;

[0177] And / or,

[0178] Update the TCI status using the TCI status identifier in the first information.

[0179] Here, using the CRI or SSB identifier in the first information to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI in the reported first information or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0180] In other words, the terminal uses the reference signal corresponding to the CRI in the first information reported as the QCL reference, and has a QCL relationship with the received downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier in the first information reported as the QCL reference, and has a QCL relationship with the received downlink signal or channel.

[0181] Here, using the CRI or SSB identifier in the first information to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI in the reported first information or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0182] Here, updating the TCI status using the TCI status identifier in the first reported information can be understood as: the terminal updates the TCI status identifier to the TCI status identifier in the first reported information. For example, assuming the TCI status identifier in the first reported information is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0183] In the third scenario, if the DCI meets the second preset condition, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported multiple CRIs and / or one SSB identifier from the reported multiple SSB identifiers and / or one TCI status identifier from the reported multiple TCI status identifiers.

[0184] Based on this, in one embodiment, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported multiple CRIs and / or one SSB identifier from the reported multiple SSB identifiers and / or one TCI status identifier from the reported multiple TCI status identifiers.

[0185] The method further includes:

[0186] Using the CRI or SSB identifier selected by the network device, determine the QCL assumptions applied to receive downlink signals or channels;

[0187] And / or,

[0188] Using the CRI or SSB identifier selected by the network device, determine the spatial domain filtering applied to transmit uplink signals or channels;

[0189] And / or,

[0190] The TCI status is updated using the TCI status identifier selected by the network device.

[0191] Here, using the CRI or SSB identifier selected by the network device to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI selected by the network device or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0192] In other words, the terminal uses the reference signal corresponding to the CRI selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel.

[0193] Here, using the CRI or SSB identifier selected by the network device to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI selected by the network device or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0194] Here, updating the TCI status using the TCI status identifier selected by the network device can be understood as: the terminal updates the TCI status identifier to the TCI status identifier selected by the network device. For example, assuming the TCI status identifier selected by the network device is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0195] In one embodiment, the DCI satisfies a second preset condition, including:

[0196] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0197] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0198] In one embodiment, the M indicator fields in the DCI take specific values, including:

[0199] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0200] or,

[0201] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0202] Here, M can be equal to 2.

[0203] Here, the RV indicator field is used to indicate the redundant version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission.

[0204] The embodiments disclosed herein have the following advantages:

[0205] (1) The terminal can trigger beam reporting, and when initiating beam reporting, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply to the network device, namely the first information.

[0206] The first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier. This first information is used to indicate the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply. Thus, the network device can instruct the terminal to provide the second information based on the terminal's expectation, allowing the terminal to determine the applied QCL assumption and / or spatial domain filtering and / or TCI status based on the second information.

[0207] (2) A beam management process triggered by the terminal is proposed, which solves the problems of high latency and high overhead in traditional network indication.

[0208] In traditional beam management, networks can configure or activate frequent periodic or semi-persistent beam reports, or trigger frequent aperiodic beam reports, to promptly acquire the best or preferred beam for data or control transmission. However, this obviously leads to significant uplink reporting and control signaling overhead. Traditional periodic or semi-persistent beam reports can only be sent during the reporting period, while the terminal proposed in this disclosure can trigger beam reports at any time. The network can quickly activate the TCI state after sending an acknowledgment DCI based on the content reported by the terminal. If the DCI meets the second preset condition, it is not necessary to wait for HARQ-ACK feedback after receiving the DCI, or wait for beam application time after HARQ-ACK before the TCI state takes effect, thus shortening the network indication delay.

[0209] Referring to Figure 3, which is a schematic flowchart of the information transmission method according to an embodiment of this disclosure, applied to a network device, the method includes steps 301 to 302:

[0210] Step 301: Receive first information sent by the terminal; the first information includes at least one of the following: CRI, SSB identifier, TCI status identifier.

[0211] Here, considering that the terminal has a better and more timely understanding of beam quality changes, the beam reporting process initiated by the terminal allows the network to obtain beam reports more promptly while reducing reporting overhead. In this process, if the terminal determines that the current beam quality has deteriorated, for example, to a level less than a preset threshold, the terminal can trigger a beam report, and the network does not need to configure or trigger frequent reports.

[0212] Here, when the terminal initiates a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI state that the terminal expects to apply, namely the first information, to the network device.

[0213] Here, the network equipment mentioned can refer to base stations, etc.

[0214] In one embodiment, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0215] Here, the first information sent by the receiving terminal may include:

[0216] Receive one or X CRIs reported by the terminal;

[0217] And / or,

[0218] Receive one or X SSB identifiers (IDs) reported by the terminal;

[0219] And / or,

[0220] Receive one or X TCI state IDs reported by the terminal.

[0221] Where X is an integer greater than 1.

[0222] Here, the CRI or SSB identifier is used to indicate the QCL assumption or spatial domain filtering that the terminal expects to apply, and the TCI status identifier is used to indicate the TCI status that the terminal expects to apply.

[0223] Here, the first information sent by the receiving terminal may include:

[0224] The terminal sends first information to the network device when the following conditions are met:

[0225] In TCI state, the L1-RSRP of the RS of the QCL configured is less than the preset threshold value.

[0226] Here, before the terminal triggers a beam report, the network device can indicate the TCI status to the terminal. Thus, if the L1-RSRP of the RS of the QCL configured in the TCI status is less than a preset threshold, the terminal can send the first information to the network device.

[0227] Step 302: Send second information to the terminal; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0228] In one embodiment, sending the second information to the terminal includes:

[0229] The second information is indicated via DCI.

[0230] Here, the statement that the second information is indicated by the DCI can be understood as the DCI carrying the second information.

[0231] In one embodiment, the second information is used by the terminal to determine the applied TCI state when the DCI meets the first preset condition, so that the terminal can apply the TCI state at the effective time of the TCI state.

[0232] In one embodiment, the second information reuses the TCI status indication field in the DCI.

[0233] In one embodiment, the effective time of the TCI state is determined by the terminal after receiving the DCI, based on the first moment when it decides to send a HARQ-ACK response to the network device, and the second moment; wherein, the second moment represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0234] Here, after receiving the DCI carrying the second information, the terminal can send a HARQ-ACK response to the network device.

[0235] Here, the effective time of the TCI state is determined by the terminal after receiving the DCI, based on the first moment when it decides to send a HARQ-ACK response to the network device, and the second moment when it decides to do so. It can mean that the effective time of the TCI state is obtained by summing the first moment and the second moment.

[0236] Specifically, the effective time of the TCI state = first time + second time = feedback time of HARQ-ACK response + first BAT, where the first BAT represents the second time, that is, the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information. In other words, the TCI state indicated by the second information carried in the DCI takes effect at this effective time.

[0237] In one embodiment, the DCI satisfies a first preset condition, including:

[0238] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0239] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0240] In one embodiment, the N indicator fields in the DCI take specific values, including at least one of the following:

[0241] The RV indicator field in the DCI takes the value of all 1s;

[0242] The MCS indicator field in the DCI takes the value of all 1s;

[0243] The value of the NDI indicator field in the DCI is 0;

[0244] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0245] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0246] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0247] Here, N can be equal to 4.

[0248] Here, the RV indicator field is used to indicate the redundancy version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission; the NDI indicator field is used to indicate whether the scheduled data is a new transmission or a retransmission; the FDRA indicator field is used to indicate frequency domain resources, with type 0 being a non-contiguous resource allocation type and type 1 being a contiguous resource allocation type.

[0249] In one embodiment, the second information is used by the terminal to determine the applied QCL hypothesis and / or spatial domain filtering and / or TCI state when the DCI meets the second preset condition, so that the terminal can apply the determined QCL hypothesis and / or spatial domain filtering and / or TCI state at a fifth time; the fifth time is the third time at which the terminal determines to receive the second information, and is determined based on the third time and the fourth time; wherein, the fourth time represents a time predefined by the protocol or a time pre-configured by the network or a time when the terminal reports the first information.

[0250] Here, the fifth moment is the third moment when the terminal determines to receive the second information, and is determined based on the third moment and the fourth moment. It can mean that the fifth moment is obtained by summing the third moment and the fourth moment.

[0251] Specifically, the fifth moment = the third moment + the fourth moment = the third moment when the terminal receives the second information + the second BAT, where the second BAT represents the fourth moment, that is, the moment predefined by the protocol or the moment pre-configured by the network or the moment when the terminal reports the first information. In other words, at this fifth moment, the terminal applies the determined QCL assumption and / or spatial domain filtering and / or TCI state.

[0252] In one embodiment, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0253] In other words, the terminal can use the CRI or SSB identifier in the first information to determine the QCL assumption applied to receiving downlink signals or channels; and / or use the CRI or SSB identifier in the first information to determine the spatial domain filtering applied to transmitting uplink signals or channels; and / or use the TCI status identifier in the first information to update the TCI status.

[0254] Here, using the CRI or SSB identifier in the first information to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI in the reported first information or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0255] In other words, the terminal uses the reference signal corresponding to the CRI in the first information reported as the QCL reference, and has a QCL relationship with the received downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier in the first information reported as the QCL reference, and has a QCL relationship with the received downlink signal or channel.

[0256] Here, using the CRI or SSB identifier in the first information to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI in the reported first information or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0257] Here, updating the TCI status using the TCI status identifier in the first reported information can be understood as: the terminal updates the TCI status identifier to the TCI status identifier in the first reported information. For example, assuming the TCI status identifier in the first reported information is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0258] In one embodiment, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to select one CRI from the reported multiple CRIs, and / or, select one SSB identifier from the reported multiple SSB identifiers, and / or, select one TCI status identifier from the reported multiple TCI status identifiers.

[0259] In other words, the terminal can use the CRI or SSB identifier selected by the network device to determine the QCL assumption applied to receiving downlink signals or channels; and / or, use the CRI or SSB identifier selected by the network device to determine the spatial domain filtering applied to transmitting uplink signals or channels; and / or, use the TCI status identifier selected by the network device to update the TCI status.

[0260] Here, using the CRI or SSB identifier selected by the network device to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI selected by the network device or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0261] In other words, the terminal uses the reference signal corresponding to the CRI selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel.

[0262] Here, using the CRI or SSB identifier selected by the network device to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI selected by the network device or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0263] Here, updating the TCI status using the TCI status identifier selected by the network device can be understood as: the terminal updates the TCI status identifier to the TCI status identifier selected by the network device. For example, assuming the TCI status identifier selected by the network device is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0264] In one embodiment, the DCI satisfies a second preset condition, including:

[0265] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0266] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0267] In one embodiment, the M indicator fields in the DCI take specific values, including:

[0268] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0269] or,

[0270] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0271] Here, M can be equal to 2.

[0272] Here, the RV indicator field is used to indicate the redundant version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission.

[0273] The embodiments disclosed herein have the following advantages:

[0274] (1) The terminal can trigger beam reporting, and when initiating beam reporting, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply to the network device, namely the first information.

[0275] The first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier. This first information is used to indicate the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply. Thus, the network device can instruct the terminal to provide the second information based on the terminal's expectation, allowing the terminal to determine the applied QCL assumption and / or spatial domain filtering and / or TCI status based on the second information.

[0276] (2) A beam management process triggered by the terminal is proposed, which solves the problems of high latency and high overhead in traditional network indication.

[0277] In traditional beam management, networks can configure or activate frequent periodic or semi-persistent beam reports, or trigger frequent aperiodic beam reports, to promptly acquire the best or preferred beam for data or control transmission. However, this obviously leads to large uplink reporting overhead and control signaling overhead. Traditional periodic or semi-persistent beam reports can only be sent during the reporting period, while the terminal proposed in this disclosure can trigger beam reports at any time. The network can quickly activate the TCI state after sending an acknowledgment DCI based on the content reported by the terminal. If the DCI meets the second preset condition, it is not necessary to wait for HARQ-ACK feedback after receiving the DCI, or wait for beam application time after HARQ-ACK before the TCI state takes effect, thus shortening the network indication delay.

[0278] Figure 4 is a schematic diagram of the specific implementation flow of the information transmission method according to an embodiment of this disclosure. As shown in Figure 4, the method includes:

[0279] Step 401: The terminal sends first information to the network device; the first information includes at least one of the following: CRI, SSB identifier, TCI status identifier.

[0280] Here, considering that the terminal has a better and more timely understanding of beam quality changes, the beam reporting process initiated by the terminal allows the network to obtain beam reports more promptly while reducing reporting overhead. In this process, if the terminal determines that the current beam quality has deteriorated, for example, to a level less than a preset threshold, the terminal can trigger a beam report, and the network does not need to configure or trigger frequent reports.

[0281] Here, when the terminal initiates a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI state that the terminal expects to apply, namely the first information, to the network device.

[0282] Here, the network equipment mentioned can refer to base stations, etc.

[0283] Here, the terminal sending the first information to the network device may include:

[0284] The terminal reports one or X CRIs to the network device;

[0285] And / or,

[0286] The terminal reports one or X SSB identifiers (IDs) to the network device;

[0287] And / or,

[0288] The terminal reports one or X TCI state IDs to the network device;

[0289] Where X is an integer greater than 1.

[0290] Here, the CRI or SSB identifier is used to indicate the QCL assumption or spatial domain filtering that the terminal expects to apply, and the TCI status identifier is used to indicate the TCI status that the terminal expects to apply.

[0291] Here, the terminal sending the first information to the network device may include:

[0292] The terminal sends first information to the network device when the following conditions are met:

[0293] In TCI state, the L1-RSRP of the RS of the QCL configured is less than the preset threshold value.

[0294] Here, before the terminal triggers a beam report, the network device can indicate the TCI status to the terminal. Thus, if the L1-RSRP of the RS of the QCL configured in the TCI status is less than a preset threshold, the terminal can send the first information to the network device.

[0295] Step 402: The network device indicates second information through DCI; wherein, when the DCI meets the first preset condition, the second information is used by the terminal to determine the TCI status of the application.

[0296] Here, the second information can reuse the TCI status indication field in the DCI.

[0297] Here, the statement that the second information is indicated by the DCI can be understood as the DCI carrying the second information.

[0298] Here, if the terminal reports a TCI status identifier to the network device, the network device can use the TCI status corresponding to the TCI status reported by the terminal as the TCI status indicated by the second information;

[0299] or,

[0300] If the terminal reports multiple TCI status identifiers to the network device, the network device may use any one of the multiple TCI status identifiers reported by the terminal as the TCI status indicated by the second information.

[0301] Step 403: When the DCI meets the first preset condition, the terminal determines the applied TCI state according to the second information; and determines the effective time of the TCI state, and applies the TCI state at the effective time.

[0302] Here, determining the effective time of the TCI state includes:

[0303] After receiving the DCI, determine the first moment to send a HARQ-ACK response to the network device;

[0304] Based on the first time and the second time, the effective time of the TCI state is determined; wherein, the second time represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0305] Here, after receiving the DCI carrying the second information, the terminal can send a HARQ-ACK response to the network device.

[0306] Here, determining the effective time of the TCI state based on the first time and the second time may mean summing the first time and the second time to obtain the effective time of the TCI state.

[0307] Specifically, the effective time of the TCI state = first time + second time = feedback time of HARQ-ACK response + first BAT, where the first BAT represents the second time, that is, the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information. In other words, the TCI state indicated by the second information carried in the DCI takes effect at this effective time.

[0308] Here, DCI satisfies the first preset condition, including:

[0309] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0310] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0311] The N indicator fields in the DCI take specific values, including at least one of the following:

[0312] The RV indicator field in the DCI takes the value of all 1s;

[0313] The MCS indicator field in the DCI takes the value of all 1s;

[0314] The value of the NDI indicator field in the DCI is 0;

[0315] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0316] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0317] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0318] Here, N can be equal to 4.

[0319] Here, the RV indicator field is used to indicate the redundancy version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission; the NDI indicator field is used to indicate whether the scheduled data is a new transmission or a retransmission; the FDRA indicator field is used to indicate frequency domain resources, with type 0 being a non-contiguous resource allocation type and type 1 being a contiguous resource allocation type.

[0320] Table 1 illustrates the values ​​of the N indicator fields of the DCI. As shown in Table 1, N equals 4. The DCI satisfies the first preset condition when the values ​​of the four indicator fields in the DCI are specific values. Specifically, the RV indicator field in the DCI is all 1s; the MCS indicator field in the DCI is all 1s; the NDI indicator field in the DCI is 0; for FDRA type 0, the FDRA indicator field in the DCI is all 0s; for FDRA type 1, the FDRA indicator field in the DCI is all 1s; and in dynamic switching scenarios, the FDRA indicator field in the DCI is all 0s.

[0321] Table 1

[0322] Here, when the terminal receives a CS-RNTI scrambled DCI, and the DCI satisfies the first preset condition, it indicates that the network device (base station) uses the second information indicated by this DCI to determine the TCI state of the application for the terminal. After receiving the DCI, the terminal performs HARQ-ACK feedback, and based on the feedback time of the HARQ-ACK response and a second time, determines the effective time of the TCI state, and applies the TCI state indicated by the second information at the effective time; wherein, the second time represents a protocol-predefined time, a network-preconfigured time, or the time when the terminal reports the first information.

[0323] This example has the following advantages:

[0324] (1) The terminal can trigger beam reporting, and when initiating beam reporting, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply to the network device, namely the first information.

[0325] The first information includes: one or more CRIs, and / or one or more SSB identifiers, and / or one or more TCI status identifiers, wherein the first information is used to indicate the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply.

[0326] (2) The network device indicates second information through DCI; wherein, when the DCI meets the first preset condition, the second information is used by the terminal to determine the TCI status of the application.

[0327] Figure 5 is a schematic diagram illustrating the specific implementation flow of the information transmission method according to an embodiment of this disclosure. As shown in Figure 5, the method includes:

[0328] Step 501: The terminal sends first information to the network device; the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier.

[0329] Here, considering that the terminal has a better and more timely understanding of beam quality changes, the beam reporting process initiated by the terminal allows the network to obtain beam reports more promptly while reducing reporting overhead. In this process, if the terminal determines that the current beam quality has deteriorated, for example, to a level less than a preset threshold, the terminal can trigger a beam report, and the network does not need to configure or trigger frequent reports.

[0330] Here, when the terminal initiates a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI state that the terminal expects to apply, namely the first information, to the network device.

[0331] Here, the network equipment mentioned can refer to base stations, etc.

[0332] Here, the terminal sending the first information to the network device may include:

[0333] The terminal reports a CRI to the network device;

[0334] And / or,

[0335] The terminal reports an SSB identifier (ID) to the network device;

[0336] And / or,

[0337] The terminal reports a TCI state ID to the network device.

[0338] Here, the CRI or SSB identifier is used to indicate the QCL assumption or spatial domain filtering that the terminal expects to apply, and the TCI status identifier is used to indicate the TCI status that the terminal expects to apply.

[0339] Here, the terminal sending the first information to the network device may include:

[0340] The terminal sends first information to the network device when the following conditions are met:

[0341] In TCI state, the L1-RSRP of the RS of the QCL configured is less than the preset threshold value.

[0342] Here, before the terminal triggers a beam report, the network device can indicate the TCI status to the terminal. Thus, if the L1-RSRP of the RS of the QCL configured in the TCI status is less than a preset threshold, the terminal can send the first information to the network device.

[0343] Step 502: The network device indicates second information through DCI; wherein, when the DCI meets the second preset conditions, the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0344] Here, the second information can reuse the TCI status indication field in the DCI.

[0345] Here, the statement that the second information is indicated by the DCI can be understood as the DCI carrying the second information.

[0346] Step 503: When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state according to the second information; and determines the third time when the second information is received, and determines the fifth time based on the third time and the fourth time; wherein the fourth time represents the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information, and at the fifth time, the determined QCL assumption and / or spatial domain filtering and / or TCI state is applied.

[0347] Here, determining the fifth time based on the third and fourth times can mean summing the third and fourth times to obtain the fifth time.

[0348] Specifically, the fifth moment = the third moment + the fourth moment = the third moment when the terminal receives the second information + the second BAT, where the second BAT represents the fourth moment, that is, the moment predefined by the protocol or the moment pre-configured by the network or the moment when the terminal reports the first information. In other words, at this fifth moment, the terminal applies the determined QCL assumption and / or spatial domain filtering and / or TCI state.

[0349] Here, the terminal determines the applied QCL assumptions and / or spatial domain filtering and / or TCI state based on the second information, which may include:

[0350] Using the CRI or SSB identifier in the first information, determine the QCL assumption applied to receive downlink signals or channels;

[0351] And / or,

[0352] Using the CRI or SSB identifier in the first information, determine the spatial domain filtering applied to the uplink signal or channel;

[0353] And / or,

[0354] Update the TCI status using the TCI status identifier in the first information.

[0355] Here, using the CRI or SSB identifier in the first information to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI in the reported first information or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0356] In other words, the terminal uses the reference signal corresponding to the CRI in the first information reported as the QCL reference and has a QCL relationship with the downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier in the first information reported as the QCL reference and has a QCL relationship with the downlink signal or channel.

[0357] Here, using the CRI or SSB identifier in the first information to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI in the reported first information or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0358] Here, updating the TCI status using the TCI status identifier in the first reported information can be understood as: the terminal updates the TCI status identifier to the TCI status identifier in the first reported information. For example, assuming the TCI status identifier in the first reported information is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0359] Here, the DCI satisfies the second preset condition, including:

[0360] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0361] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0362] The M indicator fields in the DCI take specific values, including:

[0363] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0364] or,

[0365] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0366] Here, M can be equal to 2.

[0367] Here, the RV indicator field is used to indicate the redundant version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission.

[0368] Table 2 illustrates the values ​​of the M indicator fields of the DCI. As shown in Table 2, M equals 2. The DCI satisfies the second preset condition when the values ​​of two indicator fields in the DCI are specific values. Specifically, the RV indicator field in the DCI is all 1s and the MCS indicator field in the DCI is all 0s; or, the RV indicator field in the DCI is all 0s and the MCS indicator field in the DCI is all 0s.

[0369] Table 2

[0370] Here, the terminal reports a CRI and / or an SSB identifier and / or a TCI status identifier to the network device. When the terminal receives a DCI scrambled with CS-RNTI, and the indication field in the DCI satisfies the second preset condition, it indicates that the network device (base station) uses the second information indicated by this DCI to help the terminal determine the applied QCL assumption and / or spatial domain filtering and / or TCI status. At this time, the terminal no longer needs to perform HARQ-ACK feedback. Based on the third and fourth times of receiving the second information, a fifth time is determined, and the determined QCL assumption and / or spatial domain filtering and / or TCI status is applied at the fifth time. The fifth time represents a protocol-predefined time, a network-preconfigured time, or the time when the terminal reports the first information.

[0371] This example has the following advantages:

[0372] (1) The terminal can trigger a beam report, and when initiating a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply, i.e., the first information.

[0373] The first information includes: a CRI and / or an SSB identifier and / or a TCI status identifier, which is used to indicate the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply.

[0374] (2) The network device indicates second information through DCI; wherein, when the DCI meets the second preset condition, the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0375] Figure 6 is a schematic diagram of the specific implementation flow of the information transmission method according to an embodiment of this disclosure. As shown in Figure 6, the method includes:

[0376] Step 601: The terminal sends first information to the network device; wherein, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers.

[0377] Here, considering that the terminal has a better and more timely understanding of beam quality changes, the beam reporting process initiated by the terminal allows the network to obtain beam reports more promptly while reducing reporting overhead. Under this process, if the terminal determines that the current beam quality has deteriorated, the terminal can trigger a beam report, and the network does not need to configure or trigger frequent reports.

[0378] Here, when the terminal initiates a beam report, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI state that the terminal expects to apply, namely the first information, to the network device.

[0379] Here, the network equipment mentioned can refer to base stations, etc.

[0380] Here, the terminal sending the first information to the network device may include:

[0381] The terminal reports X CRIs to the network device;

[0382] And / or,

[0383] The terminal reports X SSB identifiers (IDs) to the network device;

[0384] And / or,

[0385] The terminal reports X TCI state IDs to the network device;

[0386] Where X is an integer greater than 1.

[0387] Here, the CRI or SSB identifier is used to indicate the QCL assumption or spatial domain filtering that the terminal expects to apply, and the TCI status identifier is used to indicate the TCI status that the terminal expects to apply.

[0388] Here, the terminal sending the first information to the network device may include:

[0389] The terminal sends first information to the network device when the following conditions are met:

[0390] In TCI state, the L1-RSRP of the RS of the QCL configured is less than the preset threshold value.

[0391] Here, before the terminal triggers a beam report, the network device can indicate the TCI status to the terminal. Thus, if the L1-RSRP of the RS of the QCL configured in the TCI status is less than a preset threshold, the terminal can send the first information to the network device.

[0392] Step 602: The network device indicates second information via DCI; wherein, when the DCI meets the second preset condition, the second information is used to instruct the terminal to apply the network device to select one CRI from the reported plurality of CRIs and / or select one SSB identifier from the reported plurality of SSB identifiers and / or select one TCI status identifier from the reported plurality of TCI status identifiers.

[0393] Here, the second information can reuse the TCI status indication field in the DCI, or a new field can be added to the DCI to carry the second information.

[0394] Here, the network device selects one CRI from the X CRIs reported by the terminal and instructs it to the terminal, and / or selects one SSB identifier from the X SSB identifiers reported by the terminal and instructs it to the terminal, and / or selects one TCI status identifier from the X TCI status identifiers reported by the terminal and instructs it to the terminal, where X is an integer greater than 1.

[0395] Here, the statement that the second information is indicated by the DCI can be understood as the DCI carrying the second information.

[0396] Step 603: When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state according to the second information; and determines the third time when the second information is received, and determines the fifth time based on the third time and the fourth time; wherein the fourth time represents the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information, and at the fifth time, the determined QCL assumption and / or spatial domain filtering and / or TCI state is applied.

[0397] Here, determining the fifth time based on the third and fourth times can mean summing the third and fourth times to obtain the fifth time.

[0398] Specifically, the fifth moment = the third moment + the fourth moment = the third moment when the terminal receives the second information + the second BAT, where the second BAT represents the fourth moment, that is, the moment predefined by the protocol or the moment pre-configured by the network or the moment when the terminal reports the first information. In other words, at this fifth moment, the terminal applies the determined QCL assumption and / or spatial domain filtering and / or TCI state.

[0399] Here, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information, which may include:

[0400] Using the CRI or SSB identifier selected by the network device, determine the QCL assumptions applied to receive downlink signals or channels;

[0401] And / or,

[0402] Using the CRI or SSB identifier selected by the network device, determine the spatial domain filtering applied to transmit uplink signals or channels;

[0403] And / or,

[0404] The TCI status is updated using the TCI status identifier selected by the network device.

[0405] Here, using the CRI or SSB identifier selected by the network device to determine the QCL assumption applied to receive downlink signals or channels can be understood as follows: the terminal uses the reference signal corresponding to the CRI selected by the network device or the SSB corresponding to the SSB identifier as the QCL assumption to receive downlink signals or channels.

[0406] In other words, the terminal uses the reference signal corresponding to the CRI selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel; or, it uses the SSB corresponding to the SSB identifier selected by the network device as the QCL reference, and has a QCL relationship with the received downlink signal or channel.

[0407] Here, using the CRI or SSB identifier selected by the network device to determine the spatial domain filtering applied to transmit uplink signals or channels can be understood as follows: the terminal uses the beam direction of the reference signal corresponding to the CRI selected by the network device or the beam direction of the SSB corresponding to the SSB identifier as spatial domain filtering to transmit uplink signals or channels.

[0408] Here, updating the TCI status using the TCI status identifier selected by the network device can be understood as: the terminal updates the TCI status identifier to the TCI status identifier selected by the network device. For example, assuming the TCI status identifier selected by the network device is TCI status 1, then the TCI status identifier is updated to TCI status 1.

[0409] Here, the DCI satisfies the second preset condition, including:

[0410] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0411] Here, the DCI can be the DCI of CRC scrambled by CS-RNTI.

[0412] The M indicator fields in the DCI take specific values, including:

[0413] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0414] or,

[0415] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0416] Here, M can be equal to 2.

[0417] Here, the RV indicator field is used to indicate the redundant version used in the transmission; the MCS indicator field is used to indicate the modulation and coding style used in the current transmission.

[0418] Here, when M equals 2, the DCI satisfies the second preset condition if the two indicator fields in the DCI have specific values. Specifically, the RV indicator field in the DCI has all 1s and the MCS indicator field in the DCI has all 0s; or, the RV indicator field in the DCI has all 0s and the MCS indicator field in the DCI has all 0s.

[0419] Here, the terminal reports X CRIs and / or X SSB identifiers and / or X TCI status identifiers to the network device, where X is an integer greater than 1. When the terminal receives a DCI scrambled with CS-RNTI, and the indication field in the DCI meets the second preset condition, it indicates that the network device (base station) uses the second information indicated by this DCI to determine the applied QCL assumption and / or spatial domain filtering and / or TCI status for the terminal. At this time, the terminal no longer needs to perform HARQ-ACK feedback. Based on the third and fourth times of receiving the second information, a fifth time is determined, and the determined QCL assumption and / or spatial domain filtering and / or TCI status is applied at the fifth time. The fifth time represents a protocol-predefined time, a network-preconfigured time, or the time when the terminal reports the first information.

[0420] This example has the following advantages:

[0421] (1) The terminal can trigger beam reporting, and when initiating beam reporting, it can report information related to the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply to the network device, namely the first information.

[0422] The first information includes: multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers, and the first information is used to indicate the QCL assumption and / or spatial domain filtering and / or TCI status that the terminal expects to apply.

[0423] (2) The network device indicates second information through DCI; wherein, when the DCI meets the second preset condition, the second information is used to instruct the terminal to apply the network device to select one CRI from the reported plurality of CRIs and / or select one SSB identifier from the reported plurality of SSB identifiers and / or select one TCI status identifier from the reported plurality of TCI status identifiers.

[0424] To implement the information transmission method of this disclosure embodiment, this disclosure embodiment also provides an information transmission device, which is installed in a terminal. Figure 7 is a schematic diagram of the composition structure of the information transmission device of this disclosure embodiment. As shown in Figure 7, the device includes:

[0425] The first sending module 71 is configured to send first information to the network device; the first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier;

[0426] The first receiving module 72 is used to receive second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0427] In one embodiment, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0428] In one embodiment, the device is further configured to:

[0429] The second information is indicated via DCI.

[0430] In one embodiment, the device is further configured to:

[0431] If the DCI meets the first preset condition, the terminal determines the TCI status of the application based on the second information;

[0432] Determine the effective time of the TCI state;

[0433] The TCI state is applied at the effective time.

[0434] In one embodiment, the second information reuses the TCI status indication field in the DCI.

[0435] In one embodiment, the device is further configured to:

[0436] After receiving the DCI, determine the first moment to send a HARQ-ACK response to the network device;

[0437] Based on the first time and the second time, the effective time of the TCI state is determined; wherein, the second time represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0438] In one embodiment, the DCI satisfies a first preset condition, including:

[0439] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0440] In one embodiment, the N indicator fields in the DCI take specific values, including at least one of the following:

[0441] The RV indicator field in the DCI takes the value of all 1s;

[0442] The MCS indicator field in the DCI takes the value of all 1s;

[0443] The value of the NDI indicator field in the DCI is 0;

[0444] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0445] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0446] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0447] In one embodiment, the device is further configured to:

[0448] When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information;

[0449] Determine the third moment when the second information is received;

[0450] Based on the third and fourth moments, a fifth moment is determined; wherein, the fourth moment represents a moment predefined by the protocol, a moment preconfigured by the network, or a moment when the terminal reports the first information;

[0451] At the fifth time point, the determined QCL assumptions and / or spatial domain filtering and / or TCI states are applied.

[0452] In one embodiment, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0453] The device is also used for:

[0454] Using the CRI or SSB identifier in the first information, determine the QCL assumption applied to receive downlink signals or channels;

[0455] And / or,

[0456] Using the CRI or SSB identifier in the first information, determine the spatial domain filtering applied to the uplink signal or channel;

[0457] And / or,

[0458] Update the TCI status using the TCI status identifier in the first information.

[0459] In one embodiment, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported multiple CRIs and / or one SSB identifier from the reported multiple SSB identifiers and / or one TCI status identifier from the reported multiple TCI status identifiers.

[0460] The device is also used for:

[0461] Using the CRI or SSB identifier selected by the network device, determine the QCL assumptions applied to receive downlink signals or channels;

[0462] And / or,

[0463] Using the CRI or SSB identifier selected by the network device, determine the spatial domain filtering applied to transmit uplink signals or channels;

[0464] And / or,

[0465] The TCI status is updated using the TCI status identifier selected by the network device.

[0466] In one embodiment, the DCI satisfies a second preset condition, including:

[0467] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0468] In one embodiment, the M indicator fields in the DCI take specific values, including:

[0469] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0470] or,

[0471] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0472] In practical applications, the first sending module 71 and the first receiving module 72 can be implemented by the communication interface in the information transmission device; the processing unit can be implemented by the processor in the information transmission device.

[0473] It should be noted that the information transmission device provided in the above embodiments is only illustrated by the division of the above program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the information transmission device and the information transmission method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0474] To implement the information transmission method of this disclosure embodiment, this disclosure embodiment also provides an information transmission device, which is installed in a network device. Figure 8 is a schematic diagram of the composition structure of the information transmission device of this disclosure embodiment. As shown in Figure 8, the device includes:

[0475] The second receiving module 81 is used to receive first information sent by the terminal; the first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier;

[0476] The second sending module 82 is used to send second information to the terminal; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

[0477] In one embodiment, the number of CRIs is one or more; the number of SSB identifiers is one or more; and the number of TCI status identifiers is one or more.

[0478] In one embodiment, the device is further configured to:

[0479] The second information is indicated via DCI.

[0480] In one embodiment, the second information is used by the terminal to determine the applied TCI state when the DCI meets the first preset condition, so that the terminal can apply the TCI state at the effective time of the TCI state.

[0481] In one embodiment, the second information reuses the TCI status indication field in the DCI.

[0482] In one embodiment, the effective time of the TCI state is determined by the terminal after receiving the DCI, based on the first moment when it decides to send a HARQ-ACK response to the network device, and the second moment; wherein, the second moment represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

[0483] In one embodiment, the DCI satisfies a first preset condition, including:

[0484] The N indicator fields in the DCI take specific values; where N is a positive integer.

[0485] In one embodiment, the N indicator fields in the DCI take specific values, including at least one of the following:

[0486] The RV indicator field in the DCI takes the value of all 1s;

[0487] The MCS indicator field in the DCI takes the value of all 1s;

[0488] The value of the NDI indicator field in the DCI is 0;

[0489] For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0;

[0490] For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s;

[0491] In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

[0492] In one embodiment, the second information is used by the terminal to determine the applied QCL hypothesis and / or spatial domain filtering and / or TCI state when the DCI meets the second preset condition, so that the terminal can apply the determined QCL hypothesis and / or spatial domain filtering and / or TCI state at a fifth time; the fifth time is the third time at which the terminal determines to receive the second information, and is determined based on the third time and the fourth time; wherein, the fourth time represents a time predefined by the protocol or a time pre-configured by the network or a time when the terminal reports the first information.

[0493] In one embodiment, the first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

[0494] In one embodiment, the first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to select one CRI from the reported multiple CRIs, and / or, select one SSB identifier from the reported multiple SSB identifiers, and / or, select one TCI status identifier from the reported multiple TCI status identifiers.

[0495] In one embodiment, the DCI satisfies a second preset condition, including:

[0496] The M indicator fields in the DCI take specific values; where M is a positive integer.

[0497] In one embodiment, the M indicator fields in the DCI take specific values, including:

[0498] The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s.

[0499] or,

[0500] The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

[0501] In practical applications, the second receiving module 81 and the second sending module 82 can be implemented by the communication interface in the information transmission device; the processing unit can be implemented by the processor in the information transmission device.

[0502] It should be noted that the information transmission device provided in the above embodiments is only illustrated by the division of the above-described program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the information transmission device and the information transmission method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0503] This disclosure also provides a terminal, as shown in FIG9, including:

[0504] The first communication interface 91 is capable of exchanging information with other devices;

[0505] The first processor 92, connected to the first communication interface 91, is used to execute the methods provided by one or more of the aforementioned terminal-side technical solutions when running a computer program. The computer program is stored in the first memory 93.

[0506] It should be noted that the specific processing procedures of the first processor 92 and the first communication interface 91 are detailed in the method embodiment and will not be repeated here.

[0507] Of course, in practical applications, the various components in terminal 90 are coupled together through bus system 94. It can be understood that bus system 94 is used to realize the connection and communication between these components. In addition to the data bus, bus system 94 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 94 in Figure 9.

[0508] The first memory 93 in this embodiment is used to store various types of data to support the operation of the terminal 90. Examples of such data include any computer program used to operate on the terminal 90.

[0509] The methods disclosed in the above embodiments of this disclosure can be applied to the first processor 92, or implemented by the first processor 92. The first processor 92 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware or by instructions in the form of software in the first processor 92. The first processor 92 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 92 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this disclosure can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in the first memory 93. The first processor 92 reads the information in the first memory 93 and combines its hardware to complete the steps of the method on the terminal side.

[0510] This disclosure also provides a network device, as shown in FIG10, including:

[0511] The second communication interface 101 is capable of exchanging information with other devices;

[0512] The second processor 102, connected to the second communication interface 101, is used to execute the methods provided by one or more technical solutions on the network device side when running a computer program. The computer program is stored in the second memory 103.

[0513] It should be noted that the specific processing procedures of the second processor 102 and the second communication interface 101 are detailed in the method embodiment and will not be repeated here.

[0514] Of course, in practical applications, the various components in network device 100 are coupled together through bus system 104. It can be understood that bus system 104 is used to implement communication between these components. In addition to the data bus, bus system 104 also includes a power bus, a control bus, and a status signal bus. However, for clarity, all buses are labeled as bus system 104 in Figure 10.

[0515] The second memory 103 in this embodiment is used to store various types of data to support the operation of the network device 100. Examples of such data include any computer programs used to operate on the network device 100.

[0516] The methods disclosed in the above embodiments of this disclosure can be applied to, or implemented by, the second processor 102. The second processor 102 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the integrated logic circuitry of the hardware or by instructions in the form of software within the second processor 102. The second processor 102 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 102 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this disclosure. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this disclosure can be directly manifested as execution by a hardware decoding processor, or execution by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, specifically a second memory 103. The second processor 102 reads information from the second memory 103 and, in conjunction with its hardware, completes the steps of the method on the network device side.

[0517] In an exemplary embodiment, the terminal 90 and the network device 100 may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to perform the method described on the optical amplifier side.

[0518] It is understood that the memories (first memory 93, second memory 103) in the embodiments of this disclosure can be volatile memory or non-volatile memory, or both. Specifically, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); the magnetic surface memory can be disk storage or magnetic tape storage. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memories described in the embodiments of this disclosure are intended to include, but are not limited to, these and any other suitable types of memories.

[0519] In an exemplary embodiment, this disclosure also provides a storage medium, namely a computer storage medium, specifically a computer-readable storage medium, such as a memory storing a computer program. This computer program can be executed by a first processor 92 of a terminal 90 to complete the steps described in the aforementioned terminal-side method, or by a second processor 102 of a network device 100 to complete the steps described in the aforementioned network device-side method. The computer-readable storage medium can be a memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM.

[0520] For example, this disclosure also provides a computer program product, including a computer program that can be executed by a first processor 92 of a terminal 90 to complete the steps of the aforementioned terminal-side method, or executed by a second processor 102 of a network device 100 to complete the steps of the aforementioned network device-side method.

[0521] It should be noted that terms such as "first" and "second" are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0522] Furthermore, the technical solutions described in the embodiments of this disclosure can be combined arbitrarily without conflict.

[0523] The above description is merely a preferred embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure.

Claims

1. An information transmission method applied to a terminal, the method comprising: Send the first message to the network device; The first information includes at least one of the following: Channel State Information Reference Signal Resource Indicator (CRI), Synchronization Signal and Physical Broadcast Channel Block (SSB) Identifier, and Transmission Configuration Indicator (TCI) Status Identifier; The terminal receives second information sent by the network device; the second information is used by the terminal to determine the quasi-co-address QCL assumption and / or spatial domain filtering and / or TCI state of the application.

2. The method according to claim 1, wherein, The number of CRIs is one or more; The number of SSB identifiers is one or more; The number of TCI status identifiers can be one or more.

3. The method according to claim 1 or 2, wherein, The receipt of the second information sent by the network device includes: The second information is indicated by the downlink control information (DCI).

4. The method according to claim 3, further comprising: If the DCI meets the first preset condition, the terminal determines the TCI status of the application based on the second information; Determine the effective time of the TCI state; The TCI state is applied at the effective time.

5. The method according to claim 4, wherein, The second information reuses the TCI status indication field in the DCI.

6. The method according to claim 4, wherein, Determining the effective time of the TCI state includes: After receiving the DCI, determine the first moment to send a Hybrid Automatic Repeat Request (HARQ-ACK) response to the network device; Based on the first time and the second time, the effective time of the TCI state is determined; wherein, the second time represents a time predefined by the protocol, a time pre-configured by the network, or a time when the terminal reports the first information.

7. The method according to claim 4, wherein, The DCI satisfies a first preset condition, including: The N indicator fields in the DCI take specific values; where N is a positive integer.

8. The method according to claim 7, wherein, The N indicator fields in the DCI take specific values, including at least one of the following: The redundant version RV indicator field in the DCI takes the value of all 1s; The Modulation and Coding Scheme (MCS) indicator field in the DCI is set to all 1s. The value of the New Data Indicator (NDI) field in the DCI is 0; For frequency domain resource allocation FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0; For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s; In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

9. The method according to claim 3, further comprising: When the DCI meets the second preset condition, the terminal determines the applied QCL assumption and / or spatial domain filtering and / or TCI state based on the second information; Determine the third moment when the second information is received; Based on the third and fourth moments, a fifth moment is determined; wherein, the fourth moment represents a moment predefined by the protocol, a moment preconfigured by the network, or a moment when the terminal reports the first information; At the fifth time point, the determined QCL assumptions and / or spatial domain filtering and / or TCI states are applied.

10. The method according to claim 1, wherein, The first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application. The method further includes: Using the CRI or SSB identifier in the first information, determine the QCL assumption applied to receive downlink signals or channels; And / or, Using the CRI or SSB identifier in the first information, determine the spatial domain filtering applied to the uplink signal or channel; And / or, Update the TCI status using the TCI status identifier in the first information.

11. The method according to claim 1, wherein, The first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to use the network device to select one CRI from the reported multiple CRIs and / or one SSB identifier from the reported multiple SSB identifiers and / or one TCI status identifier from the reported multiple TCI status identifiers. The method further includes: Using the CRI or SSB identifier selected by the network device, determine the QCL assumptions applied to receive downlink signals or channels; And / or, Using the CRI or SSB identifier selected by the network device, determine the spatial domain filtering applied to transmit uplink signals or channels; And / or, The TCI status is updated using the TCI status identifier selected by the network device.

12. The method according to claim 9, wherein, The DCI satisfies the second preset condition, including: The M indicator fields in the DCI take specific values; where M is a positive integer.

13. The method according to claim 12, wherein, The M indicator fields in the DCI take specific values, including: The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s. or, The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

14. An information transmission method applied to a network device, the method comprising: The first message sent by the receiving terminal; The first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier; Send a second message to the terminal; the second message is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

15. The method according to claim 14, wherein, The number of CRIs is one or more; The number of SSB identifiers is one or more; The number of TCI status identifiers can be one or more.

16. The method according to claim 14 or 15, wherein, Sending the second information to the terminal includes: The second information is indicated via DCI.

17. The method according to claim 16, wherein, The second information is used by the terminal to determine the applied TCI state when the DCI meets the first preset condition, so that the terminal can apply the TCI state at the effective time of the TCI state.

18. The method according to claim 17, wherein, The second information reuses the TCI status indication field in the DCI.

19. The method of claim 17, wherein, The effective time of the TCI state is the first moment when the terminal determines to send a HARQ-ACK response to the network device after receiving the DCI, and is determined based on the first moment and the second moment; wherein, the second moment represents the moment predefined by the protocol, the moment pre-configured by the network, or the moment when the terminal reports the first information.

20. The method of claim 17, wherein, The DCI satisfies a first preset condition, including: The N indicator fields in the DCI take specific values; where N is a positive integer.

21. The method according to claim 20, wherein, The N indicator fields in the DCI take specific values, including at least one of the following: The RV indicator field in the DCI takes the value of all 1s; The MCS indicator field in the DCI takes the value of all 1s; The value of the NDI indicator field in the DCI is 0; For FDRA type 0, the FDRA indicator field in the DCI takes the value of all 0; For FDRA type 1, the FDRA indicator field in the DCI takes the value of all 1s; In dynamic switching scenarios, the FDRA indicator field in the DCI takes the value of all 0s.

22. The method according to claim 16, wherein, The second information is used by the terminal to determine the applied QCL assumption and / or spatial domain filtering and / or TCI state when the DCI meets the second preset condition, so that the terminal can apply the determined QCL assumption and / or spatial domain filtering and / or TCI state at the fifth time; the fifth time is the third time when the terminal determines to receive the second information, and is determined based on the third time and the fourth time; wherein, the fourth time represents the time predefined by the protocol or the time pre-configured by the network or the time when the terminal reports the first information.

23. The method according to claim 14, wherein, The first information includes a CRI and / or an SSB identifier and / or a TCI status identifier; the second information is used to indicate a CRI and / or an SSB identifier and / or a TCI status identifier reported by the terminal application.

24. The method according to claim 14, wherein, The first information includes multiple CRIs and / or multiple SSB identifiers and / or multiple TCI status identifiers; the second information is used to instruct the terminal to select one CRI from the reported multiple CRIs, and / or, select one SSB identifier from the reported multiple SSB identifiers, and / or, select one TCI status identifier from the reported multiple TCI status identifiers.

25. The method according to claim 22, wherein, The DCI satisfies the second preset condition, including: The M indicator fields in the DCI take specific values; where M is a positive integer.

26. The method of claim 25, wherein, The M indicator fields in the DCI take specific values, including: The RV indicator field in the DCI takes the value of all 1s; the MCS indicator field in the DCI takes the value of all 0s. or, The RV indicator field in the DCI has a value of all 0; the MCS indicator field in the DCI has a value of all 0.

27. An information transmission device, comprising: The first sending module is used to send first information to the network device; The first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier; The first receiving module is used to receive second information sent by the network device; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

28. An information transmission device, comprising: The second receiving module is used to receive the first information sent by the terminal; The first information includes at least one of the following: CRI, SSB identifier, and TCI status identifier; The second sending module is used to send second information to the terminal; the second information is used by the terminal to determine the QCL assumption and / or spatial domain filtering and / or TCI state of the application.

29. A terminal, comprising a processor and a memory for storing a computer program capable of running on the processor. in, When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 1 to 13.

30. A network device, comprising a processor and a memory for storing a computer program capable of running on the processor. in, When the processor is used to run the computer program, it performs the steps of the method according to any one of claims 14 to 26.

31. A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 13, or implements the steps of the method according to any one of claims 14 to 26.

32. A computer program product comprising a computer program that, when executed by a processor, implements the method of any one of claims 1 to 13, or implements the method of any one of claims 14 to 26.

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