RU2805990C1 - Method and device for indicating pusch, method and device for transferring pusch - Google Patents

Abstract

FIELD: communications.

SUBSTANCE: configuring for the terminal a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode, the plurality of SRS resources within the SRS resource sets associated with beam related information; transmitting to the terminal a channel state information reference signal (CSI-RS) corresponding to each SRS resource set; performing detection of the state of the uplink channel information in accordance with the SRS transmitted by the terminal, and determining, according to the detection result, a plurality of beams for jointly transmitting the uplink and indication information corresponding to each beam, and transmitting a plurality of pieces of indication information to the terminal.

EFFECT: ability to support joint transmission of multiple antenna panels in a terminal and meet the requirements of services that require improved PUSCH transmission.

15 cl, 18 dwg, 2 tbl

Description

TECHNICAL FIELD

[0001] The present invention relates to the field of communication technology and, in particular, to a method for indicating a physical uplink shared channel (PUSCH), a method for transmitting a PUSCH, an apparatus for indicating a PUSCH, an apparatus for transmitting a PUSCH, an electronic apparatus and a machine-readable storage medium.

PREREQUISITES FOR CREATION OF THE INVENTION

[0002] In the prior art, in the physical uplink shared channel (PUSCH) transmission mechanism based on codebook transmission, the base station only indicates spatial communication information to the terminal and only determines a set of scheduling parameters for PUSCH transmission, which cannot support joint transmission of multiple antenna panels in a terminal and meet the requirements of services that require enhanced PUSCH transmission.

SUMMARY OF THE INVENTION

[0003] In view of this, in order to solve technical problems in the related art, embodiments of the present invention provide a PUSCH indication method, a PUSCH transmission method, a PUSCH indication device, a PUSCH transmission device, an electronic device, and a computer-readable storage medium.

[0004] According to a first aspect of embodiments of the present invention, a method for indicating a physical uplink shared channel (PUSCH) that is performed by a base station is provided, including:

[0005] configuring for the terminal a plurality of sounding reference signal resource sets (SRS) that operate in a non-codebook mode, the plurality of SRS resource sets associated with a plurality of antenna panels in the terminal, and the plurality of SRS resources in the plurality of sets SRS resources are associated with beam-related information;

[0006] transmitting a channel state information reference signal (CSI-RS) corresponding to each of the plurality of SRS resource sets to the terminal via a plurality of transmission and reception points (TRP);

[0007] detecting the state of the uplink channel information of the SRS resource set according to the SRS transmitted by the terminal, and determining a plurality of beams for jointly transmitting uplink and indication information corresponding to each of the plurality of beams according to the detection result, each of rays corresponds to different TRP;

[0008] transmitting a plurality of pieces of indication information to the terminal, wherein the indication information is configured to direct the terminal to determine beam-related information for joint uplink transmission and transmit a beam-based PUSCH corresponding to said determined beam-related information.

[0009] According to a second aspect of embodiments of the present invention, there is provided a method for transmitting a physical uplink shared channel (PUSCH) that is performed by a terminal and includes:

[00010] receiving a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode and are configured by a base station, the plurality of SRS resource sets associated with a plurality of antenna panels in a terminal, and the plurality of SRS resources in a plurality of SRS resource sets associated with beam-related information;

[00011] receiving a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets transmitted by the base station via a plurality of transmit and receive points (TRPs);

[00012] determining a shaping vector of each SRS resource in each of the SRS resource sets according to the plurality of CSI-RSs, and estimating the precoding information used to effect uplink transmission by determining the shaping vector as a column vector;

[00013] determining beams for PUSCH transmission by the antenna panels according to the precoding information and transmitting an SRS generated based on the precoding information using said beams by the antenna panels;

[00014] receiving indication information corresponding to each of a plurality of beams for joint uplink transmission determined by the base station in accordance with the received SRS, each of the beams corresponding to a different transmission and reception point (TRP) in the base station;

[00015] determining beam related information corresponding to a beam for uplink joint transmission according to the indication information, and transmitting a PUSCH to a base station based on the beam corresponding to said determined beam related information.

[00016] According to a third aspect of embodiments of the present invention, an apparatus for indicating a physical uplink shared channel (PUSCH) is provided, which is implemented by a base station and includes:

[00017] a set configuration module configured to configure for a terminal a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode, the plurality of SRS resource sets associated with a plurality of antenna panels in the terminal, and a plurality of SRS resources in a variety of resource sets, SRSs are associated with beam-related information;

[00018] an indication determination module, configured to detect the state of uplink channel information of a set of SRS resources in accordance with the SRS transmitted by the terminal, and determine a plurality of beams for jointly transmitting uplink and indication information corresponding to each of the plurality of beams, in accordance with detection result, with each beam corresponding to a different TRP;

[00019] an indication transmission module configured to transmit a plurality of pieces of indication information to a terminal, wherein the indication information is configured to direct the terminal to determine beam-related information for joint uplink transmission and transmit a PUSCH based on the beam corresponding to the beam-related information. beam.

[00020] According to a fourth aspect of embodiments of the present invention, an apparatus for transmitting a physical uplink shared channel (PUSCH) is provided, which is carried out by a terminal and includes:

[00021] a set receiving module configured to receive a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode and are configured by a base station, the plurality of SRS resource sets associated with a plurality of antenna panels in the terminal, and the plurality of resources SRSs in a plurality of SRS resource sets are associated with beam-related information;

[00022] a signal receiving module configured to receive a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets transmitted by the base station via a plurality of transmit and receive points (TRPs);

[00023] a precoding determination module, configured to determine a shaping vector of each SRS resource in each of the SRS resource sets according to a plurality of CSI-RSs, and estimating the precoding information used to effect uplink transmission by determining the shaping vector as a vector -column;

[00024] an SRS transmission module configured to determine beams for transmitting PUSCH by antenna panels in accordance with the precoding information and transmitting an SRS generated based on the precoding information using said beams by the antenna panels;

[00025] an indication receiving module configured to receive indication information corresponding to each of a plurality of beams for joint uplink transmission determined by the base station in accordance with the received SRS, each of the beams corresponding to a different transmission and reception point (TRP) in the base station stations;

[00026] a PUSCH transmission module configured to determine beam related information corresponding to a beam for joint uplink transmission according to the indication information, and transmit a PUSCH to a base station based on the beam corresponding to said determined beam related information.

[00027] According to a fifth aspect of embodiments of the present invention, there is provided an electronic device that includes:

[00028] processor and

[00029] memory for storing instructions executed by the processor.

[00030] The processor is configured to implement the PUSCH indicating method.

[00031] According to a sixth aspect of embodiments of the present invention, there is provided an electronic device that includes:

[00032] processor and

[00033] memory for storing instructions executed by the processor.

[00034] The processor is configured to implement the PUSCH transmission method.

[00035] In accordance with a seventh aspect of embodiments of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium contains computer programs stored therein that, when executed by a processor, cause the processor to execute the steps of the PUSCH indicating method.

[00036] In accordance with the eighth aspect of embodiments of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium contains computer programs stored therein that, when executed by a processor, cause the processor to execute steps of the PUSCH transmission method.

[00037] In accordance with embodiments of the present invention, a terminal may transmit SRS to a base station via multiple beams in a plurality of SRS resources. After receiving the SRS, the base station can detect an uplink channel based on the received SRS to determine a plurality of beams suitable for joint transmission of multiple antenna panels in the terminal. For example, a base station may detect received SRS signal strength information and determine a beam associated with an SRS resource where the channel signal strength is greater than a predetermined strength value that is suitable for joint transmission of multiple antenna panels in the terminal.

[00038] The base station may determine a plurality of beams for joint transmission and indication information corresponding to each of the beams, so as to transmit to the terminal a plurality of indications corresponding to the plurality of beams, so that the terminal can determine the plurality of beams for joint transmission and antenna panels corresponding to the plurality of beams based on instructions information. Thus, shared transmission via multiple antenna panels can meet the requirements of services that require improved PUSCH transmission.

BRIEF DESCRIPTION OF THE DRAWINGS

[00039] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings used in describing the embodiments of the invention. It will be appreciated that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art may also obtain other drawings based on these drawings without performing creative work.

Fig. 1 is a flowchart illustrating a method for indicating PUSCH according to an embodiment of the present invention.

Fig. 2 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention.

Fig. 3 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention.

Fig. 4 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention.

Fig. 5 is a flowchart illustrating a PUSCH transmission method according to an embodiment of the present invention.

Fig. 6 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention.

Fig. 7 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention.

Fig. 8 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention.

Fig. 9 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention.

Fig. 10 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention.

Fig. 11 is a block diagram illustrating a device for indicating PUSCH according to an embodiment of the present invention.

Fig. 12 is a block diagram illustrating an apparatus for indicating PUSCH according to another embodiment of the present invention.

Fig. 13 is a block diagram illustrating an apparatus for indicating PUSCH according to another embodiment of the present invention.

Fig. 14 is a block diagram illustrating a PUSCH transmission apparatus according to an embodiment of the present invention.

Fig. 15 is a block diagram illustrating an apparatus for transmitting PUSCH according to another embodiment of the present invention.

Fig. 16 is a block diagram illustrating an apparatus for transmitting PUSCH according to another embodiment of the present invention.

Fig. 17 is a block diagram illustrating a device for indicating PUSCH according to an embodiment of the present invention.

Fig. 18 is a block diagram illustrating a PUSCH transmission apparatus according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[00040] Technical solutions in embodiments of the present invention will be clearly and in detail described below with reference to the accompanying drawings. Obviously, the described embodiments of the invention are only some and not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments of the invention obtained by those skilled in the art without performing creative work are within the spirit of the present invention.

[00041] FIG. 1 is a flowchart illustrating a method for indicating PUSCH according to an embodiment of the present invention. The PUSCH indication method shown in the embodiments of the invention may be performed by a base station, and the base station includes, but is not limited to, a 4G base station, a 5G base station and a 6G base station. The base station may communicate with a terminal that is used as a user device. The terminal may include, but is not limited to, an electronic device such as a mobile phone, tablet computer, wearable device, sensor, Internet of Things device, or the like. In one embodiment of the invention, the terminal may be a terminal suitable for implementing the PUSCH transmission method in any of the subsequent embodiments of the invention.

[00042] As shown in FIG. 1, the method of indicating PUSCH may include the following steps.

[00043] In step S101, a plurality of Sounding Reference Signal (SRS) resource sets are configured for the terminal, which operate in a non-codebook mode. Each of the resource sets includes a plurality of single-port SRS resources. A plurality of SRS resource sets are associated with a plurality of antenna panels in a terminal, and a plurality of SRS resources in a plurality of SRS resource sets are associated with beam related information.

[00044] In step S102, a channel state information reference signal (CSI-RS) (non-zero power CSI-RS) corresponding to each of a plurality of SRS resource sets is transmitted to the terminal via a plurality of transmission and reception points (TRPs).

[00045] In step S103, the state of the uplink channel information of the SRS resource set is detected according to the SRS transmitted by the terminal, and a plurality of beams for uplink joint transmission and indication information corresponding to each of the plurality of beams are determined according to the detection result. Each of the rays corresponds to a different TRP.

[00046] In step S104, a plurality of pieces of indication information are transmitted to the terminal. The indication information is configured to direct the terminal to determine beam-related information for uplink joint transmission and to transmit a PUSCH based on the beam corresponding to the determined beam-related information.

[00047] In one embodiment of the invention, precoding may include codebook-based precoding and codebook-free precoding. Embodiments of the present invention are primarily used in precoding scenarios without the use of a codebook.

[00048] The base station may configure a terminal with multiple SRS resource sets that are used without a codebook, and configure an associated CSI-RS for each of the SRS resource sets. SRS resources in sets are associated with beam-specific information. The ray-related information may be SpatialRelationInfo or other ray-related information.

[00049] In addition, SRS resource sets are associated with a plurality of antenna panels in the terminal. For example, the terminal has two antenna panels, i.e. antenna panel A and antenna panel B, and the number of SRS resource sets can be 2, including set A and set B. Set A is associated with antenna panel A, and set B is associated with antenna panel B. Different SRS resources in the SRS resource set can match different beams based on beam-specific information. The direction of each of the beams corresponding to all the SRS resources in the SRS resource set may represent a direction for beam transmission by an antenna panel corresponding to the SRS resource set, but the signal quality of the beams in different directions is different.

[00050] In addition, a plurality of transmit and receive points (TRPs) may be provided at the base station. The base station may transmit a CSI-RS corresponding to each of the SRS resource sets to the terminal via a plurality of TRPs. The terminal may detect a downlink channel in accordance with the received CSI-RS.

[00051] For example, the terminal may determine a shaping vector of each SRS resource in each of the SRS resource sets according to a plurality of CSI-RSs, and estimate, using the shaping vector, precoding information used to effect uplink transmission. The precoding information may include precoding matrix indication information TPMI and rank indication information RI. The shaping vector can be used as a column vector in the precoding matrix. In addition, the terminal determines beams for PUSCH transmission by the antenna panels in accordance with the precoding information, and transmits an SRS generated based on the precoding information using the beams via the antenna panels.

[00052] Determination of precoding information includes, but is not limited to, a singular value decomposition (SDV) algorithm, an equation-based eigenvalue algorithm, a maximum ||HW|| etc., and specific choices may be made as necessary, which are not limited to the present invention.

[00053] For example, the terminal is configured with two sets of SRS resources, i.e. with set A and set B. Two CSI-RSs may be transmitted to the terminal, and the terminal may perform downlink channel detection on the channel of antenna panel A corresponding to set A according to the first CSI-RS, and perform downlink channel detection on the channel antenna panel B corresponding to set B according to the second CSI-RS.

[00054] After the terminal receives the SRS resource sets, the terminal can determine beam-related information associated with each of the SRS resources and determine a beam corresponding to the SRS resource based on the beam-related information. For example, there are a plurality of antenna panels in a terminal, and different antenna panels correspond to different beams (different beams may have different beam directions).

[00055] In addition, based on the reciprocity between the uplink and the downlink, the terminal can determine the state of the uplink channel according to the detection result on the downlink channel, thereby determining the shaping vector of each SRS resource in each of the SRS resource sets and using a shaping vector to estimate precoding information used to effect uplink transmission. That is, precoding information corresponding to set A can be determined in accordance with the first CSI-RS, and precoding information corresponding to set B can be determined in accordance with the second CSI-RS.

[00056] In addition, the terminal can determine a beam for PUSCH transmission by the antenna panel in accordance with the determined precoding information, and transmit an SRS generated based on the precoding information using the beam via the antenna panel. For example, the SRS may be generated using precoding information corresponding to set A, and the generated SRS is transmitted via a beam corresponding to each SRS resource in set A by antenna panel A. Accordingly, the SRS is generated using precoding information corresponding to set B. and the generated SRS is transmitted via a beam corresponding to each SRS resource in set B by antenna panel B.

[00057] After the base station receives the SRS, the base station may detect an uplink channel based on the received SRS to determine a plurality of beams suitable for joint transmission of the plurality of antenna panels in the terminal. For example, signal strength information of a received SRS signal may be detected to determine a beam associated with an SRS resource where the signal strength of the channel is greater than a predetermined strength value that is suitable for joint transmission of multiple antenna panels in the terminal.

[00058] To indicate multiple beams to the terminal, the base station may also determine indication information corresponding to each of the beams. Each of the beams corresponds to a different transmit and receive point (TRP) at the base station, and the base station can transmit indication information to the terminal. The indication information may direct the terminal to determine beam related information corresponding to a beam used for uplink cooperative transmission, and transmit a PUSCH based on the beam corresponding to the determined beam related information.

[00059] After the terminal receives the plurality of pieces of indication information, the terminal may determine beam-related information corresponding to a beam that is used for uplink joint transmission and corresponding to the indication information, and transmit PUSCH based on said beam corresponding to the determined information. related to the beam. Specifically, a beam for uplink joint transmission and an antenna panel corresponding to each of the beams can be determined according to information related to the beam, and PUSCH is transmitted to the base station by the corresponding beam through a plurality of antenna panels.

[00060] Based on this, the base station can determine a plurality of beams used for joint transmission and indication information corresponding to each beam, transmitting a plurality of indications corresponding to the plurality of beams to the terminal. Thus, the terminal can determine a plurality of beams used for joint transmission and antenna panels corresponding to the plurality of beams according to the indication information, which allows joint transmission through a plurality of antenna panels to meet the requirements of services that require enhanced PUSCH transmission. Services include, but are not limited to, ultra-reliable and low latency communication (URLLC) services.

[00061] FIG. 2 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention. As shown in FIG. 2, determining a plurality of beams for joint uplink transmission according to the detection result includes step S201.

[00062] In step S201, a plurality of beams for uplink joint transmission are determined in accordance with the detection result, the maximum number of data layers that the terminal supports in the uplink, and the multiplex transmission mode of the multiple beams.

[00063] In one embodiment of the invention, the maximum number (maxrank) of data levels that different terminals support in the uplink is different, and the multi-beam multiplexing modes are different in different terminals. Multiplex transmission modes include, but are not limited to, time division multiplexing (TDM), frequency division multiplexing (FDM), and space division multiplexing (SDM). For a base station, in the case of determining a plurality of beams for joint uplink transmission, the maximum number of data layers and a multiplex transmission mode may be taken into account to more accurately determine a plurality of beams suitable for joint uplink transmission to a terminal.

[00064] For example, if the multiplex transmission mode in the terminal is frequency division multiplexing (FDM), a plurality of beams that can be used for frequency division multiplexing are selected as a plurality of beams for joint uplink transmission to indicate to the terminal. For example, if the multiplex transmission mode in the terminal is time division multiplexing (TDM), a plurality of beams that can be used for time division multiplexing are selected as a plurality of beams for joint uplink transmission to indicate to the terminal. In addition, the number of pieces of beam-related information indicated by the indication information is less than or equal to the maximum number (maxrank) of data levels.

[00065] Optionally, the indication information includes:

[00066] SRS resource indication identifier (SRI) and/or uplink transmission configuration indication (UL TCI) status index.

[00067] In one embodiment of the invention, the indication information transmitted by the base station to the terminal may be an SRI or a UL TCI status index.

[00068] In the case where the indication information is an SRI, the terminal may determine the SRI resource indicated by the SRI, for example, determine the SRS resource indicated by the SRI in SRS resource sets to determine the beam-related information associated with the SRS resource.

[00069] In the case where the indication information is a UL TCI status index, the terminal may determine the UL TCI status indicated by the UL TCI status index, and then determine the beam-related information corresponding to the beam used for uplink joint transmission and the corresponding reference signal in UL TCI state. The reference signal can be SRS or CSI-RS, which can be selected as required.

[00070] In the prior art, the downlink TCI status can be used to indicate a beam for downlink transmission. In embodiments of the present invention, the UL TCI status index is used as an indication for indicating a beam for uplink transmission, so that the indication method for the uplink is more consistent with the indication method for the downlink, which helps to simplify the indication logic and reduce the complexity of indication operations. base station.

[00071] In one embodiment of the invention, for example, the indication information is SRI, the base station transmits m SRI to the terminal, where m is the number of uplink cooperative antenna panels supported by the terminal. The base station can pre-create m possible sets, i.e. SRS1 - SRSm, and the base station may indicate the SRI in the candidate set SRSi using log ₂ (N _SRSi ) bits, where N _SRSi represents the number of SRIs in the candidate set SRSi, and l≤i≤m.

[00072] In addition, for each SRS resource indicated by the SRI, the base station may calculate precoding information. For example, for m SRS resources indicated by m SRI, m pieces of precoding information may be calculated. For example, the precoding information includes TPMI and RI, m TPMI and m RI can be calculated. The i-th precoding information corresponds to the SRS resource indicated by the i-th SRI, i.e. corresponds to the antenna panel and beam corresponding to the SRS resource. That is, in the case of transmitting a PUSCH through the i-th antenna panel, the PUSCH may be pre-encoded with the i-th pre-coding information and then transmitted.

[00073] Optionally, in response to the terminal being capable of maintaining the uplink UL TCI state, the indication information includes an SRI or UL TCI state index, and

[00074] in response to the terminal being unable to maintain the uplink UL TCI state, the indication information includes SRI.

[00075] In one embodiment of the invention, some terminals are capable of supporting uplink UL TCI states, while others are not capable of supporting uplink UL TCI states. For terminals that are not capable of supporting uplink UL TCI states, transmitting UL TCI state indices to the terminals prevents the terminals from determining UL TCI states based on UL TCI state indices and transmitting UL TCI states in the uplink, resulting in wasted communication resources. . Therefore, in this case, SRI can be used as indication information to avoid loss of communication resources.

[00076] In case the terminal is capable of maintaining the uplink UL TCI state, the base station may use the UL TCI state index as the indication information or use the SRI as the indication information, which can be selected as needed.

[00077] The terminal may transmit capability information to the base station so that the base station determines whether the terminal supports the uplink UL TCI state.

[00078] Optionally, the indication information includes a UL TCI status index, and the UL TCI status indicated by the UL TCI status index may be configured using at least one of the following as a reference signal:

[00079] Channel State Information Reference Signal (CSI-RS) or SRS.

[00080] In one embodiment of the invention, the UL TCI state index may indicate the UL TCI state, and the UL TCI state may use CSI-RS as a reference signal or SRS as a reference signal.

[00081] Optionally, the UL TCI state is also configured to indicate the path loss reference signal (path loss RS) resource of the beam corresponding to the UL TCI state index.

[00082] In one embodiment of the invention, the UL TCI state index indicates the state of the UL TCI, and the UL TCI state indicates the path loss RS resource of a beam corresponding to the UL TCI state index, so that the terminal can transmit the path loss RS resource using said beam to based on the path loss resource RS for the base station to determine the path loss that needs to be compensated.

[00083] In accordance with embodiments of the present invention, the UL TCI state may use CSI-RS as a reference signal or use SRS as a reference signal, and the UL TCI state may include a path loss resource RS based on the CSI-RS as a reference signal or include the SRS-based path loss resource RS as a reference signal.

[00084] Optionally, in response to the terminal's uplink transmission maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with CSI-RS as the reference signal or configured with SRS as the reference signal.

[00085] In one embodiment of the invention, since the terminal transmitting information to the base station belongs to the uplink and the CSI-RS belongs to the downlink signal, the terminal may use the SRS as a reference signal for the UL TCI state. In case the terminal's uplink transmission supports beam coherence, the downlink CSI-RS can be used as a reference signal for the UL TCI state.

[00086] Optionally, in response to the terminal's uplink transmission not maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with SRS as a reference signal.

[00087] In one embodiment of the invention, in case the terminal's uplink transmission does not support beam coherence, the CSI-RS belonging to the downlink signal cannot be used as a reference signal for the UL TCI state, and only the SRS can be used as a reference signal for the UL TCI status.

[00088] FIG. 3 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention. As shown in FIG. 3, in response to the fact that the UL TCI state is not configured to indicate a beam path loss resource RS corresponding to the UL TCI state index, the method also includes the following.

[00089] In step S301, resource configuration information is transmitted to the terminal to configure the path loss resource RS associated with each of the beams.

[00090] In one embodiment of the invention, in the case that the UL TCI state is not configured to indicate a beam path loss RS resource corresponding to the UL TCI state index, the base station may transmit resource configuration information to the terminal to configure the path loss RS resource associated with each of the beams, so that the terminal can transmit a path loss RS by a beam based on the path loss RS resource to allow the base station to determine the path loss that needs to be compensated.

[00091] In one embodiment of the invention, resource configuration information may be indicated by a medium access control layer control element (MAC CE).

[00092] FIG. 4 is a flowchart illustrating a method for indicating PUSCH according to another embodiment of the present invention. As shown in FIG. 4, the indication information includes the UL TCI status index, and the method also includes the following.

[00093] In step S401, beam configuration information (eg, contained in radio resource control (RRC) information) is transmitted to the terminal to configure a plurality of pieces of candidate beam-related information for the terminal.

[00094] In step S402, beam activation information (eg, carried in the CE MAC) is transmitted to the terminal to instruct the terminal to activate the plurality of pieces of available beam-related information in the plurality of pieces of candidate beam-related information.

[00095] The UL TCI status index is configured to direct the terminal to determine beam-related information for cooperative uplink transmission of multiple pieces of available beam-related information.

[00096] In one embodiment of the invention, since the number of pieces of information related to a candidate beam may be large, for example 64, if the indication information is directly used for indication, it is necessary to occupy redundant bits. Therefore, in some embodiments of the present invention, a plurality of pieces of information related to a candidate beam may be first configured using the beam configuration information, and the beam activation information is also transmitted to the terminal to activate the plurality of pieces of available beam-related information in a plurality of pieces of information related to the candidate beam. For example, if 8 of 64 pieces of candidate beam-related information are activated as available beam-related information, for each of the beams used for joint uplink transmission, only the indication information that indicates 8 situations is used for indication. and only 3 bits are needed for 8 situations, which helps reduce the number of bits needed to indicate information and saves communication resources.

[00097] Optionally, the UL TCI status index is in a one-to-one correspondence with the SRS resource.

[00098] In one embodiment of the invention, the UL TCI status index is in a one-to-one correspondence with beam-related information, that is, each UL TCI status index can independently indicate one piece of beam-related information. Specifically, the UL TCI state may be indicated by a UL TCI state index, and the reference signal in the UL TCI state is SRS. Therefore, the SRS resource corresponding to the SRS reference signal in the UL TCI state also corresponds to the beam related information, i.e. beam-related information indicated by the UL TCI status index.

[00099] As shown in Table 1, 8 pieces of available beam-related information are activated, and UL TCI state values A0 to A8 can be set as needed.

[000100] The base station may transmit one or more pieces of indication information to the terminal, that is, the base station may transmit one or more UL TCI status indexes to the terminal. For example, the base station transmits to the terminal two UL TCI state indices, which are 0 and 1, respectively, and it can be determined that the SRS resources corresponding to the two specified UL TCI states are SRS0 and SRS3 according to the two UL TCI state indices, and Thus, the beam-related information corresponding to the two SRS resources, that is, SRS0 and SRS3, are 2 pieces of beam-related information indicated by the base station through the indication information.

[000101] Optionally, the UL TCI status index corresponds to one piece of beam-related information and/or a plurality of pieces of beam-related information.

[000102] In one embodiment of the invention, the UL TCI status index may correspond to a piece of beam-related information of one SRS and/or multiple pieces of beam-related information, that is, the UL TCI status index can independently indicate one piece of beam-related information , and the UL TCI may also indicate multiple pieces of beam-related information.

[000103] In particular, the UL TCI state may be indicated by the UL TCI state index. The reference signal in the UL TCI state is the SRS, and the beam-related information corresponding to the SRS resource that corresponds to the SRS reference signal in the UL TCI state is the beam-related information indicated by the UL TCI state index.

[000104] As shown in Table 2, 8 pieces of available beam-related information are activated, and UL TCI state values A0 to A7 can be set as needed.

[000105] The base station may transmit one or more pieces of indication information to the terminal, that is, the base station may transmit one or more UL TCI status indexes to the terminal. For example, the base station transmits to the terminal two UL TCI state indices, which are 0 and 1, respectively, and it can be determined that the SRS resources corresponding to the two specified UL TCI states are SRS0 and SRS1, respectively, in accordance with the two UL TCI state indices. and thus, the beam-related information corresponding to the two SRS resources, that is, SRS0 and SRS1, are two pieces of beam-related information indicated by the base station through the indication information.

[000106] For example, the base station transmits to the terminal two UL TCI state indices, which are respectively equal to 3, and it can be determined that the SRS resources corresponding to the two specified UL TCI states are SRS1 and SRS2, respectively, in accordance with the two UL TCI state indices , and thus the beam-related information corresponding to the two SRS resources, that is, SRS1 and SRS2, are two pieces of beam-related information indicated by the base station through the indication information.

[000107] In one embodiment of the invention, the number of layers (rank) of the uplink influences the terminal's transmission of UL TCI in the uplink. For example, the terminal has two antenna panels, each antenna panel can perform uplink transmission in two beam directions, and the number of uplink layers is 2, so that the indication information indicates at most four SRS resources. Therefore, in this case, the number of SRS resources indicated by the indication information is relatively small, and the number of bits required for the indication is relatively small. Therefore, the MAC CE and downlink control information (DCI) can be used as beam configuration information and beam activation information to indicate to the terminal, respectively.

[000108] In this embodiment of the invention, the UL TCI state index not only corresponds to one piece of beam-related information, but also corresponds to a plurality of pieces of beam-related information, and one piece of beam-related information corresponding to the UL TCI state index may be included in a corresponding plurality of beam-related information pieces. Based on this, the base station is allowed to provide a backup indication. For example, the UL TCI status index is set to 4 to indicate beam-related information corresponding to two SRS resources, SRS2 and SRS5, respectively. However, if it is determined that the SRS transmitted through the SRS resource SRS5 does not meet the signal strength requirements, that is, the signal transmitted by the antenna panel determined by the terminal based on the beam-related information corresponding to the SRS resource SRS5 does not meet the requirements, a fallback indication it may be that the UL TCI status index is set to 2, which indicates only the beam-related information corresponding to the SRS resource SRS2.

[000109] FIG. 5 is a flowchart illustrating a PUSCH transmission method according to an embodiment of the present invention. The PUSCH transmission method shown in the embodiments of the invention may be performed by a terminal, and the terminal includes, but is not limited to, an electronic device such as a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device, and the like. The terminal may be used as a user device associated with a base station. The base station includes, but is not limited to, a 4G base station, a 5G base station, and a 6G base station. In one embodiment of the invention, the base station may be a base station suitable for implementing the PUSCH indication method in any of the above-described embodiments of the invention.

[000110] As shown in FIG. 5, the PUSCH transmission method may include the following steps.

[000111] In step S501, a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode and are configured by the base station are received. A plurality of SRS resource sets are associated with a plurality of antenna panels in a terminal, and a plurality of SRS resources in a plurality of SRS resource sets are associated with beam related information.

[000112] In step S502, a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets transmitted by the base station via a plurality of transmission and reception points (TRPs) is received.

[000113] In step S503, the shaping vector of each SRS resource in each of the SRS resource sets is determined according to the plurality of CSI-RSs, and the precoding information used for carrying out the uplink transmission is estimated by determining the shaping vector as a column vector.

[000114] In step S504, beams for PUSCH transmission by the antenna panels are determined according to the precoding information, and an SRS generated based on the precoding information is transmitted by the beams via the antenna panels.

[000115] In step S505, indication information corresponding to each of a plurality of beams for cooperative uplink transmission determined by the base station in accordance with the received SRS is received. Each of the beams corresponds to a different transmit and receive point (TRP) in the base station.

[000116] In step S506, beam related information corresponding to a beam for uplink joint transmission is determined according to the indication information, and a PUSCH is transmitted to the base station based on the beam corresponding to the determined beam related information.

[000117] In one embodiment of the invention, precoding may include codebook-based precoding and codebook-free precoding. Embodiments of the present invention are primarily used in precoding scenarios without the use of a codebook.

[000118] A plurality of SRS resource sets are configured for a non-codebook mode for the terminal, and the SRS resources in the sets are associated with beam-related information. The ray-related information may be SpatialRelationInfo or other ray-related information.

[000119] In addition, SRS resource sets are associated with a plurality of antenna panels in the terminal. For example, the terminal has two antenna panels, i.e. antenna panel A and antenna panel B, and the number of SRS resource sets can be 2, including set A and set B. Set A is associated with antenna panel A, and set B is associated with antenna panel B. Different SRS resources in the SRS resource set can match different beams based on beam-specific information. The direction of each of the beams corresponding to all SRS resources in the SRS resource set may represent a direction for beam transmission through the antenna panel corresponding to the SRS resource set, but the signal quality of the beams in different directions is different.

[000120] In addition, multiple transmit and receive points (TRPs) may be provided at the base station. The base station may transmit the CSI-RS corresponding to each SRS resource set to the terminal via a plurality of TRPs. The terminal may detect a downlink channel in accordance with the received CSI-RS.

[000121] For example, the terminal may determine a shaping vector of each SRS resource in each of the SRS resource sets according to a plurality of CSI-RSs, and estimate, with the shaping vector, precoding information used to effect uplink transmission. The precoding information may include precoding matrix indication information TPMI and rank indication information RI. The shaping vector can be used as a column vector in the precoding matrix. In addition, the terminal determines beams for transmitting PUSCH through the antenna panels in accordance with the precoding information, and transmits an SRS generated based on the precoding information using the beams through the antenna panels.

[000122] Determination of precoding information includes, but is not limited to, a singular value decomposition (SDV) algorithm, an equation-based eigenvalue algorithm, a maximum ||HW|| etc., and specific choices may be made as necessary, which are not limited to the present invention.

[000123] For example, the terminal is configured with two sets of SRS resources, i.e. set A and set B. Two CSI-RSs may be transmitted to the terminal, and the terminal may perform downlink channel detection on a channel of antenna panel A corresponding to set A according to the first CSI-RS, and perform downlink channel detection on the channel by the antenna panel B corresponding to set B according to the second CSI-RS.

[000124] After the terminal receives the SRS resource sets, the terminal can determine beam-related information associated with each of the SRS resources and determine a beam corresponding to the SRS resource based on the beam-related information. For example, there are a plurality of antenna panels in a terminal, and different antenna panels correspond to different beams (different beams may have different beam directions).

[000125] In addition, based on the reciprocity between the uplink and the downlink, the terminal can determine the uplink channel situation based on the detection result on the downlink channel by determining the shaping vector of each SRS resource in each of the SRS resource sets and using the shaping vector a vector for estimating precoding information used to effect uplink transmission. That is, precoding information corresponding to set A can be determined in accordance with the first CSI-RS, and precoding information corresponding to set B can be determined in accordance with the second CSI-RS.

[000126] For example, a set including n precoding matrices W is defined as {W1, W2, ..., Wn}, and the corresponding set of number (RANK) v levels is defined as {v1, v2, ..., vn}.

[000127] In addition, the terminal may determine a beam for transmitting PUSCH through the antenna panel in accordance with the determined precoding information, and transmit an SRS generated based on the precoding information using the beam through the antenna panel. For example, the SRS may be generated using precoding information corresponding to set A, and the generated SRS is transmitted via a beam corresponding to each SRS resource in set A through antenna panel A. Accordingly, the SRS is generated using precoding information corresponding to set B. and the generated SRS is transmitted via a beam corresponding to each SRS resource in set B through antenna panel B.

[000128] After the base station receives the SRS, the base station may detect an uplink channel based on the received SRS to determine a plurality of beams suitable for joint transmission of the plurality of antenna panels in the terminal. For example, signal strength information of a received SRS signal may be detected to determine a beam associated with an SRS resource where the channel signal strength is greater than a predetermined strength value that is suitable for joint transmission of multiple antenna panels in the terminal.

[000129] To indicate multiple beams to the terminal, the base station may also determine indication information corresponding to each of the beams. Each of the beams corresponds to a different transmit and receive point (TRP) at the base station, and the base station can transmit indication information to the terminal. The indication information may direct the terminal to determine beam related information corresponding to a beam used for uplink cooperative transmission, and transmit a PUSCH based on the beam corresponding to the determined beam related information.

[000130] After the terminal receives the plurality of pieces of indication information, the terminal may determine beam-related information corresponding to a beam that is used for joint uplink transmission and corresponding to the indication information, and transmit PUSCH based on the beam corresponding to the determined information. related to the beam. Specifically, a beam for uplink joint transmission and an antenna panel corresponding to each of the beams can be determined according to information related to the beam, and PUSCH is transmitted to the base station by the corresponding beam through a plurality of antenna panels.

[000131] Based on this, the base station can determine a plurality of beams used for joint transmission and indication information corresponding to each beam, transmitting a plurality of indications corresponding to the plurality of beams to the terminal. Thus, the terminal can determine a plurality of beams used for joint transmission and antenna panels corresponding to the plurality of beams according to the indication information, which allows joint transmission through a plurality of antenna panels to meet the requirements of services that require enhanced PUSCH transmission. Services include, but are not limited to, Ultra Reliable Low Latency Communications (URLLC) services.

[000132] FIG. 6 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention. As shown in FIG. 6, determining the shaping vector of each SRS resource in each of the SRS resource sets according to the CSI-RS set includes the following.

[000133] In step S601, a shaping vector of each SRS resource in each of the SRS resource sets is determined in accordance with the CSI-RS set, the maximum number of data layers that the terminal supports in the uplink, and the multi-beam multiplexing mode.

[000134] In one embodiment of the invention, the maximum number (maxrank) of data levels that different terminals support in the uplink is different, and the multi-beam multiplexing modes are different in different terminals. Multiplexing modes include, but are not limited to, time division multiplexing (TDM), frequency division multiplexing (FDM), and space division multiplexing (SDM). For the terminal, in the case of determining the shaping vector, the maximum number of data layers and the multiplex transmission mode can be taken into account to more accurately determine the shaping vector suitable for the terminal to determine the precoding information.

[000135] For example, a set including n precoding matrices W is defined as {W1', W2', ..., Wn'}, and the corresponding set of number (RANK) v levels is defined as {v1', v2', ..., vn '}.

[000136] For example, the multiplex transmission mode in the terminal is frequency division multiplexing (FDM), and the shaping vectors may be determined to correspond to a plurality of beams for frequency division multiplexing. For example, the multiplexing mode in the terminal is time division multiplexing (TDM), and shaping vectors corresponding to multiple beams may be selected for time division multiplexing.

[000137] Optionally, the indication information includes at least one of the following:

[000138] SRS resource indication identifier (SRI) or uplink transmission configuration indication (UL TCI) status index.

[000139] In one embodiment of the invention, the indication information transmitted by the base station to the terminal may be an SRI or a UL TCI status index.

[000140] In the case where the indication information is an SRI, the terminal may determine the SRI resource indicated by the SRI, for example, determine the SRS resource indicated by the SRI in SRS resource sets to determine the beam-related information associated with the SRS resource.

[000141] In the case where the indication information is a UL TCI status index, the terminal may determine the UL TCI status indicated by the UL TCI status index, and then determine the beam-related information corresponding to the beam used for uplink joint transmission and the corresponding reference signal in UL TCI state. The reference signal can be SRS or CSI-RS, which can be selected as required.

[000142] In the prior art, the downlink TCI status can be used to indicate a beam for downlink transmission. In an embodiment of the present invention, the UL TCI state index is used to indicate a beam for uplink transmission to make the indication method for the uplink more consistent with the indication method for the downlink, which helps to simplify the indication logic and reduce the complexity of the indication operations of the base station.

[000143] In one embodiment of the invention, for example, the indication information is SRI, the base station transmits m SRI to the terminal, where m is the number of uplink cooperative transmission antenna panels supported by the terminal. The base station can pre-create m possible sets, i.e. SRSI is SRSm, and the base station may indicate the SRI in the candidate SRSi set using log ₂ (N _SRSi ) bits, where N _SRSi represents the number of SRIs in the candidate SRSi set, and l≤i≤m.

[000144] In addition, for each SRS resource indicated by the SRI, the base station may calculate precoding information. For example, for m SRS resources indicated by m SRI, m pieces of precoding information may be calculated. For example, the precoding information includes TPMI and RI, m TPMI and m RI can be calculated. The i-th precoding information corresponds to the SRS resource indicated by the i-th SRI, i.e. corresponds to the antenna panel and beam corresponding to the SRS resource. That is, in the case of transmitting a PUSCH through the i-th antenna panel, the PUSCH may be pre-encoded with the i-th pre-coding information and then transmitted.

[000145] Optionally, in response to the terminal being capable of maintaining the uplink UL TCI state, the indication information includes an SRI or UL TCI state index, and

[000146] In response to the terminal being unable to maintain the uplink UL TCI state, the indication information includes SRI.

[000147] In one embodiment of the invention, some terminals are capable of supporting uplink UL TCI states, while others are not capable of supporting uplink UL TCI states. For terminals that are not capable of supporting uplink UL TCI states, transmitting UL TCI state indices to the terminals prevents the terminals from determining UL TCI states based on UL TCI state indices and transmitting UL TCI states in the uplink, resulting in wasted communication resources. . Therefore, in this case, SRI can be used as indication information to avoid loss of communication resources.

[000148] In case the terminal is capable of maintaining the uplink UL TCI state, the base station may use the UL TCI state index as the indication information or use the SRI as the indication information, which can be selected as needed.

[000149] The terminal may transmit capability information to the base station so that the base station determines whether the terminal supports the uplink UL TCI state.

[000150] FIG. 7 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention. As shown in FIG. 7, the indication information includes a UL TCI status index, and determining beam-related information corresponding to a beam for uplink cooperative transmission according to the indication information includes the following.

[000151] In step S701, the UL TCI state indicated by the UL TCI state index is determined, and beam-related information corresponding to the beam for cooperative uplink transmission corresponding to the reference signal in the UL TCI state is determined.

[000152] In one embodiment of the invention, the base station may indicate the UL TCI state by the UL TCI state index, and the reference signal in the UL TCI state is SRS. Therefore, the beam-related information corresponding to the SRS resource corresponding to the SRS reference signal in the UL TCI state is the beam-related information indicated by the UL TCI state index. Therefore, the terminal can determine the UL TCI state indicated by the UL TCI state index, and then determine the beam-related information corresponding to the beam used for joint uplink transmission and the corresponding reference signal in the UL TCI state.

[000153] FIG. 8 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention. As shown in FIG. 8, the method also includes the following.

[000154] In step S801, the resource of a path loss reference signal (path loss RS) of a beam corresponding to the UL TCI state index is determined in accordance with the UL TCI state.

[000155] In one embodiment of the invention, the UL TCI state index indicates the UL TCI state, and the UL TCI state indicates the path loss RS resource of a beam corresponding to the UL TCI state index, so that the terminal can transmit the path loss RS resource by beam based on the resource Path loss RS for the base station to determine the path loss that needs to be compensated.

[000156] In accordance with embodiments of the present invention, the UL TCI state may use CSI-RS as a reference signal or use SRS as a reference signal, and the UL TCI state may include a path loss resource RS based on the CSI-RS as a reference signal or include the SRS-based path loss resource RS as a reference signal.

[000157] Optionally, the reference signal in the UL TCI state includes

[000158] Channel State Information Reference Signal (CSI-RS) and/or SRS.

[000159] In one embodiment of the invention, the UL TCI state index may indicate the UL TCI state, and the UL TCI state may use CSI-RS as a reference signal or SRS as a reference signal.

[000160] Optionally, in response to an uplink transmission of a terminal supporting beam coherence, the reference signal in the UL TCI state includes CSI-RS or SRS.

[000161] In one embodiment of the invention, since the terminal transmitting information to the base station belongs to the uplink and the CSI-RS belongs to the downlink signal, the terminal may use the SRS as a reference signal for the UL TCI state. In case the terminal's uplink transmission supports beam coherence, the downlink CSI-RS can be used as a reference signal for the UL TCI state.

[000162] Optionally, in response to the terminal's uplink transmission not maintaining beam coherence, the reference signal in the UL TCI state turns on the SRS.

[000163] In one embodiment of the invention, in the case that the uplink terminal's transmission does not support beam coherence, the CSI-RS belonging to the downlink signal cannot be used as a reference signal for the UL TCI state, and only the SRS can be used in as a reference signal for the UL TCI status.

[000164] FIG. 9 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention. As shown in FIG. 9, the method also includes the following.

[000165] In step S901, resource configuration information transmitted by the terminal is received to determine the path loss resource RS for each of the beams.

[000166] In one embodiment of the invention, in the case that the UL TCI state is not configured to indicate a beam path loss RS resource corresponding to the UL TCI state index, the base station may transmit resource configuration information to the terminal to configure the path loss RS resource associated with each of the beams, so that the terminal can transmit a path loss RS by a beam based on the path loss RS resource to allow the base station to determine the path loss that needs to be compensated.

[000167] In one embodiment of the invention, resource configuration information may be indicated by a media access control layer control element (MAC CE).

[000168] FIG. 10 is a flowchart illustrating a PUSCH transmission method according to another embodiment of the present invention. As shown in FIG. 10, the indication information includes a UL TCI status index, and determining beam-related information corresponding to a beam for uplink cooperative transmission according to the indication information includes the following.

[000169] In step S1001, beam configuration information transmitted by the base station is received to determine a plurality of pieces of information related to a candidate beam according to the beam configuration information.

[000170] In step S1002, receiving beam activation information transmitted by the base station, activating a plurality of pieces of available beam-related information in a plurality of pieces of candidate beam-related information according to the beam activation information.

[000171] In step S1003, beam related information corresponding to a beam for uplink cooperative transmission is determined in the available beam related information according to the UL TCI status index.

[000172] In one embodiment of the invention, since the number of pieces of information related to a candidate beam may be large, for example 64, if the indication information is directly used for indication, it is necessary to occupy redundant bits. Therefore, in some embodiments of the present invention, a plurality of pieces of information related to a candidate beam may be first configured using the beam configuration information, and the beam activation information is also transmitted to the terminal to activate the plurality of pieces of available beam-related information in a plurality of pieces of information related to the candidate beam. For example, if 8 of 64 pieces of candidate beam-related information are activated as available beam-related information, for each of the beams used for joint uplink transmission, only the indication information that indicates 8 situations is used for indication. and only 3 bits are needed for 8 situations, which helps reduce the number of bits required for indication information and saves communication resources.

[000173] Optionally, the UL TCI status index is in a one-to-one correspondence with the SRS resource.

[000174] In one embodiment of the invention, the UL TCI status index is in a one-to-one correspondence with beam-related information, that is, each UL TCI status index can independently indicate one piece of beam-related information. Specifically, the UL TCI state may be indicated by a UL TCI state index, and the reference signal in the UL TCI state is SRS. Therefore, the SRS resource corresponding to the UL TCI status reference signal SRS also corresponds to beam related information, i.e. beam-related information indicated by the UL TCI status index.

[000175] As shown in Table 1, 8 pieces of available beam-related information are activated, and UL TCI state values A0 to A8 can be set as needed.

[000176] The base station may transmit one or more pieces of indication information to the terminal, that is, the base station may transmit one or more UL TCI status indexes to the terminal. For example, the base station transmits to the terminal two UL TCI state indices, which are 0 and 1, respectively, and it can be determined that the SRS resources corresponding to the two specified UL TCI states are SRS0 and SRS3, respectively, according to the two UL TCI state indices , and thus the beam-related information corresponding to the two SRS resources, that is, SRS0 and SRS3, are 2 pieces of beam-related information indicated by the base station through the indication information.

[000177] Optionally, the UL TCI status index corresponds to one piece of beam-related information and/or a plurality of pieces of beam-related information.

[000178] In one embodiment of the invention, the UL TCI status index may correspond to one piece of SRS beam-related information and/or multiple pieces of beam-related information, that is, the UL TCI status index may independently indicate one piece of beam-related information , and the UL TCI may also indicate multiple pieces of beam-related information.

[000179] In particular, the UL TCI state may be indicated by the UL TCI state index. The reference signal in the UL TCI state is the SRS, and the beam-related information corresponding to the SRS resource that corresponds to the SRS reference signal in the UL TCI state is the beam-related information indicated by the UL TCI state index.

[000180] As shown in Table 2, 8 pieces of available beam-related information are activated, and UL TCI state values A0 to A8 can be set as needed.

[000181] The base station may transmit one or more pieces of indication information to the terminal, that is, the base station may transmit one or more UL TCI status indexes to the terminal. For example, the base station transmits to the terminal two UL TCI state indices, which are 0 and 1, respectively, and it can be determined that the SRS resources corresponding to the two specified UL TCI states are SRS0 and SRS1, respectively, in accordance with the two UL TCI state indices , and thus the beam-related information corresponding to the two SRS resources, that is, SRS0 and SRS1, are two pieces of beam-related information indicated by the base station through the indication information.

[000182] For example, two UL TCI state indices of 3 are transmitted to the terminal, and thus, it can be determined that the SRS resources corresponding to the specified UL TCI state are SRS1 and SRS2 according to the two UL TCI state indices. Therefore, the beam-related information corresponding to the two SRS resources, SRS1 and SRS2, is the beam-related information indicated by the base station by the indication information.

[000183] In this embodiment of the invention, the UL TCI state index not only corresponds to one piece of beam-related information, but also corresponds to a plurality of pieces of beam-related information, and one piece of beam-related information corresponding to the UL TCI state index may be included in a corresponding plurality of pieces of information relating to the beam. Based on this, the base station is allowed to provide a backup indication. For example, the UL TCI status index is set to 4 to indicate beam-related information corresponding to two SRS resources, SRS2 and SRS5, respectively. However, if it is determined that the SRS transmitted through the SRS resource SRS5 does not meet the signal power requirements, that is, the signal transmitted by the antenna panel determined by the terminal based on the beam-related information corresponding to the SRS resource SRS5 does not meet the requirements, reserve indication it may be that the UL TCI status index is set to 2, which indicates only the beam-related information corresponding to the SRS resource SRS2.

[000184] According to the above-mentioned embodiments of a PUSCH indicating method and a PUSCH transmission method, the present invention provides embodiments of a PUSCH indicating apparatus and a PUSCH transmitting apparatus.

[000185] FIG. 11 is a block diagram illustrating a device for indicating PUSCH according to an embodiment of the present invention. The device for indicating PUSCH shown in the embodiments of the invention may be implemented by a base station, and the base station includes, but is not limited to, a 4G base station, a 5G base station and a 6G base station. The base station can communicate with a terminal that is used as a user device. The terminal may include, but is not limited to, an electronic device such as a mobile phone, tablet computer, wearable device, sensor, Internet of Things device, or the like. In one embodiment of the invention, the terminal may be a terminal suitable for a device for transmitting PUSCH in any of the subsequent embodiments of the invention.

[000186] As shown in FIG. 11, the device for indicating PUSCH may comprise the following.

[000187] The set configuration module 1101 is configured to configure for a terminal a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode. A plurality of SRS resource sets are associated with a plurality of antenna panels in a terminal, and a plurality of SRS resources in a plurality of SRS resource sets are associated with beam related information.

[000188] The signal transmission module 1102 is configured to transmit a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets to a terminal via a plurality of transmission and reception points (TRPs).

[000189] The indication determination unit 1103 is configured to detect the state of uplink channel information of the SRS resource set according to the SRS transmitted by the terminal, and determine a plurality of beams for jointly transmitting uplink and indication information corresponding to each of the plurality of beams according to the result detection. Each of the rays corresponds to a different TRP.

[000190] The indication transmission module 1104 is configured to transmit multiple pieces of indication information to the terminal. The indication information is configured to direct the terminal to determine beam-related information for uplink joint transmission and to transmit a PUSCH based on the beam corresponding to the determined beam-related information.

[000191] Optionally, the indication transmission module is configured to determine a plurality of beams for joint uplink transmission in accordance with the detection result, the maximum number of data layers that the terminal supports in the uplink, and the multiplexing mode of the multiple beams.

[000192] Optionally, the indication information includes:

[000193] SRS resource indication identifier (SRI) and/or uplink transmission configuration indication (UL TCI) status index.

[000194] Optionally, in response to the terminal being capable of maintaining the uplink UL TCI state, the indication information includes an SRI or UL TCI state index; And

[000195] In response to the terminal not being able to support the uplink UL TCI state, the indication information includes an SRI.

[000196] Optionally, the indication information includes a UL TCI status index, and the UL TCI status indicated by the UL TCI status index is configured using at least one of the following as a reference signal:

[000197] Channel State Information Reference Signal (CSI-RS) or SRS.

[000198] Optionally, the UL TCI state is also configured to indicate the path loss reference signal (path loss RS) resource of the beam corresponding to the UL TCI state index.

[000199] Optionally, in response to the terminal's uplink transmission maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with CSI-RS as the reference signal or configured with SRS as the reference signal.

[000200] Optionally, in response to the terminal's uplink transmission not maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with SRS as a reference signal.

[000201] FIG. 12 is a block diagram illustrating an apparatus for indicating PUSCH according to another embodiment of the present invention. As shown in FIG. 12, in response to the fact that the UL TCI state is not configured to indicate a beam path loss resource RS corresponding to the UL TCI state index, the apparatus also includes the following.

[000202] The path loss configuration module 1201 is configured to transmit resource configuration information to the terminal for configuring the path loss resource RS associated with each of the beams.

[000203] FIG. 13 is a block diagram illustrating an apparatus for indicating PUSCH according to another embodiment of the present invention. As shown in FIG. 13, the indication information includes a UL TCI status index, and the device also contains the following.

[000204] The candidate configuration module 1301 is configured to transmit beam configuration information to a terminal to configure a plurality of pieces of information related to a candidate beam for the terminal.

[000205] The activation configuration module 1302 is configured to transmit beam activation information to the terminal to instruct the terminal to activate the plurality of pieces of available beam-related information in the plurality of pieces of candidate beam-related information.

[000206] The UL TCI status index is configured to direct the terminal to determine beam-related information corresponding to a beam for uplink cooperative transmission in a plurality of pieces of available beam-related information.

[000207] Optionally, the UL TCI status index is in a one-to-one correspondence with beam-related information.

[000208] Optionally, the UL TCI status index corresponds to one piece of beam-related information and/or a plurality of pieces of beam-related information.

[000209] FIG. 14 is a block diagram illustrating a PUSCH transmission apparatus according to an embodiment of the present invention. The apparatus for transmitting PUSCH shown in the embodiments of the invention may be implemented by a terminal, and the terminal includes, but is not limited to, an electronic device such as a mobile phone, a tablet computer, a wearable device, a sensor, an Internet of Things device, and the like. The terminal may be used as a user device associated with a base station. The base station includes, but is not limited to, a 4G base station, a 5G base station, and a 6G base station. In one embodiment of the invention, the base station may be a base station suitable for the PUSCH indication device in any of the above-described embodiments of the invention.

[000210] As shown in FIG. 14, the PUSCH transmission apparatus may comprise the following.

[000211] The set receiving module 1401 is configured to receive a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode and are configured by the base station. A plurality of SRS resource sets are associated with a plurality of antenna panels in a terminal, and a plurality of SRS resources in a plurality of SRS resource sets are associated with beam related information.

[000212] The signal receiving module 1402 is configured to receive a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets transmitted by a base station through a plurality of transmit and receive points (TRPs).

[000213] The precoding determination unit 1403 is configured to determine a shaping vector of each SRS resource in each of the SRS resource sets according to a plurality of CSI-RSs, and estimating the precoding information used to effect uplink transmission by determining the shaping vector as a vector -column.

[000214] The SRS transmission unit 1404 is configured to determine beams for PUSCH transmission via antenna panels in accordance with the precoding information and transmit an SRS generated based on the precoding information using said beams via the antenna panels.

[000215] The indication receiving module 1405 is configured to receive indication information corresponding to each of a plurality of beams for cooperative uplink transmission determined by the base station in accordance with the received SRS. Each of the beams corresponds to a different transmit and receive point (TRP) at the base station.

[000216] The PUSCH transmission unit 1406 is configured to determine beam related information corresponding to a beam for uplink joint transmission according to the indication information, and transmit a PUSCH to a base station based on the beam corresponding to said determined beam related information.

[000217] Optionally, the precoding determination module is configured to determine the shaping vector of each SRS resource in each of the SRS resource sets in accordance with the CSI-RS set, the maximum number of data layers that the terminal supports in the uplink, and the multi-beam multiplexing mode .

[000218] Optionally, the indication information contains:

[000219] SRS resource indication identifier (SRI) and/or uplink transmission configuration indication (UL TCI) status index.

[000220] Optionally, in response to the terminal being capable of maintaining the uplink UL TCI state, the indication information includes an SRI or UL TCI state index; And

[000221] In response to the terminal not being able to support the uplink UL TCI state, the indication information includes an SRI.

[000222] Optionally, the indication information includes a UL TCI status index. The PUSCH transmission module is configured to determine a UL TCI state indicated by a UL TCI state index, and determine beam-related information corresponding to a beam for cooperative uplink transmission corresponding to a reference signal in the UL TCI state.

[000223] FIG. 15 is a block diagram illustrating an apparatus for transmitting PUSCH according to another embodiment of the present invention. As shown in FIG. 15, the device also contains the following.

[000224] The path loss resource determining unit 1501 is configured to determine the resource of a path loss reference signal (path loss RS) of a beam corresponding to the UL TCI state index in accordance with the UL TCI state.

[000225] Optionally, the reference signal in the UL TCI state includes:

[000226] Channel State Information Reference Signal (CSI-RS) and/or SRS.

[000227] Optionally, in response to the terminal's uplink transmission maintaining beam coherence, the reference signal in the UL TCI state includes CSI-RS or SRS.

[000228] Optionally, in response to the terminal's uplink transmission not maintaining beam coherence, the reference signal in the UL TCI state turns on the SRS.

[000229] FIG. 16 is a block diagram illustrating an apparatus for transmitting PUSCH according to another embodiment of the present invention. As shown in FIG. 16, the device also contains the following.

[000230] The path loss configuration receiving unit 1601 is configured to receive resource configuration information transmitted by the base station to determine the path loss resources RS for each beam.

[000231] Optionally, the indication information includes a UL TCI status index. The PUSCH transmission unit is configured to receive beam-related information transmitted by the base station, determine a plurality of pieces of information related to a candidate beam according to the beam configuration information, receive beam activation information transmitted by the base station, activate multiple pieces of available information, beam-related information in a plurality of pieces of information related to a candidate beam in accordance with the beam activation information, and determining beam-related information corresponding to a beam for uplink cooperative transmission in the available beam-related information in accordance with UL TCI condition index.

[000232] Optionally, the UL TCI status index is in a one-to-one correspondence with beam-related information.

[000233] Optionally, the UL TCI status index corresponds to one piece of beam-related information and/or a plurality of pieces of beam-related information.

[000234] With respect to the apparatus in the embodiments described above, specific methods for performing an operation in each module have been described in detail in method embodiments that are not described in detail here.

[000235] Since the apparatus embodiments generally correspond to the method embodiments, reference may be made to a corresponding description of the method embodiments. The device embodiments described above are illustrative only, and modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical modules, that is, they may be located in the same location or may be distributed across multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of solving the embodiments in the present invention. This is understandable to those skilled in the art and can be implemented by them without creative effort.

[000236] Embodiments of the present invention also provide an electronic device. The electronic device contains:

[000237] processor and

[000238] memory for storing instructions executed by the processor.

[000239] The processor is configured to implement the PUSCH indicating method in any of the above-described embodiments of the invention.

[000240] Embodiments of the present invention also provide an electronic device. The electronic device contains:

[000241] processor and

[000242] memory for storing instructions executed by the processor.

[000243] The processor is configured to implement the PUSCH transmission method in any of the above-described embodiments of the invention.

[000244] Embodiments of the present invention also provide a computer-readable storage medium. The computer-readable storage medium contains computer programs stored therein that, when executed by a processor, implement the steps of the PUSCH indicating method in any of the above-described embodiments of the invention.

[000245] Embodiments of the present invention also provide a computer-readable storage medium. The computer-readable storage medium contains computer programs stored therein that, when executed by a processor, implement the steps of the PUSCH transmission method in any of the above-described embodiments of the invention.

[000246] As shown in FIG. 17, fig. 17 is a block diagram of an apparatus 1700 for indicating PUSCH according to an embodiment of the present invention. Device 1700 may be provided as a base station. As shown in FIG. 17, device 1700 includes a processing component 1722, a wireless transmit/receive component 1724, an antenna component 1726, and a signal processing component for the wireless interface. Processing component 1722 may also include one or more processors. One of the processors in processing component 1722 may be configured to implement the PUSCH indication method described in any of the above embodiments.

[000247] FIG. 18 is a block diagram of a PUSCH transmission apparatus 1800 according to an embodiment of the present invention. For example, device 1800 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, or the like.

[000248] As shown in FIG. 18, device 1800 may include one or more of the following components: a processing component 1802, a memory 1804, a power component 1806, a multimedia component 1808, an audio component 1810, an input/output interface 1812, a measurement component 1814, and a communication component 1816.

[000249] Processing component 1802 typically controls general operations of device 1800, such as operations related to display, telephone calls, data transfer, camera operations, and recording operations. Processing component 1802 may include one or more processors 1820 for executing instructions to perform all or some of the steps in the PUSCH transmission method described above. In addition, processing component 1802 may include one or more modules that provide interaction between processing component 1802 and other components. For example, processing component 1802 may include a media module for providing interaction between multimedia component 1808 and processing component 1802.

[000250] Memory 1804 is configured to store various types of data to support operation of the device 1800. Examples of such data include instructions for any applications or methods used on the device 1800, contact information, phone book data, messages, images, videos, etc. Memory 1804 may be implemented using any type of volatile or nonvolatile memory devices or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM, erasable programmable read-only memory), programmable read-only memory (PROM, programmable read-only memory), read-only memory (ROM, read-only memory), magnetic memory, flash memory, magnetic or optical disk.

[000251] Power component 1806 provides power to various components of device 1800. Power component 1806 may include a power management system, one or more power supplies, and any other components associated with generating, managing, and distributing power within device 1800.

[000252] Multimedia component 1808 includes a screen that provides an output interface between device 1800 and a user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input from the user. The touchpad includes one or more touch sensors to recognize touches, slides, and gestures on the touchpad. Touch sensors can not only sense the boundary of a touch or slide action, but also sense the time period and pressure associated with the touch or slide action. In some embodiments, the media component 1808 includes a front camera and/or a rear camera. The front camera and/or rear camera may receive external media data when the device 1800 is in an operating mode, such as a photo or video mode. Each of the front and rear cameras may be a fixed optical lens system or may have focusing and optical zoom capabilities.

[000253] Audio component 1810 is configured to output and/or input audio signals. For example, audio component 1810 includes a microphone (MIC) configured to receive an external audio signal when device 1800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in memory 1804 or transmitted through communication component 1816. In some embodiments, audio component 1810 also includes a speaker for outputting audio signals.

[000254] I/O interface 1812 provides an interface between processing component 1802 and peripheral interface modules such as a keyboard, click wheel, buttons, and the like. Buttons may include, but are not limited to, a Home button, a volume button, a start button, and a lock button.

[000255] The sensing component 1814 includes one or more sensors to provide an assessment of the status of various aspects of the device 1800. For example, the sensing component 1814 may detect the open/closed state of the device 1800, the relative position of components such as the display and keyboard of the device 1800, a change in the position of the device 1800 or component of device 1800, the presence or absence of user contact with device 1800, orientation or acceleration/deceleration of device 1800, and temperature change of device 1800. Sensing component 1814 may include a proximity sensor configured to detect the presence of nearby objects without physical contact with them. The measurement component 1814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the measurement component 1814 may also include an accelerometer sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[000256] Communications component 1816 is configured to provide communications, wired or wireless, between device 1800 and other devices. The device 1800 may access a wireless network based on a communication standard such as WiFi, 2G, 3G, 4G LTE, 5G NR, or a combination thereof. In one illustrative embodiment of the invention, communication component 1816 receives a broadcast signal or broadcast-related information from an external broadcast control system via a broadcast channel. In one illustrative embodiment of the invention, communication component 1816 also includes a near field communication (NFC) module to provide near field communication. For example, an NFC module can be implemented based on radio frequency identification technology (RFID, radio frequency identification), infrared data transmission technology (IrDA, infrared data association), ultra-wideband technology (UWB, ultra-wideband), Bluetooth technology (BT) and other technologies.

[000257] In illustrative embodiments of the invention, device 1800 may be implemented with one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs). device), programmable logic devices (PLD, programmable logic device), field programmable gate arrays (FPGA, field programmable gate array), controllers, microcontrollers, microprocessors, or other electronic components to implement the PUSCH transmission method described above.

[000258] In illustrative embodiments of the invention, a computer-readable storage medium is also provided containing instructions, such as those included in memory 1804, executed by processor 1820 in device 1800, for executing the PUSCH transmission method described above. For example, the computer-readable storage medium may be a ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical storage device, or the like.

[000259] Other embodiments of the present invention will be apparent to those skilled in the art from consideration of the present description and application of the present invention. The present invention is intended to cover any variations, applications or adaptations of the present invention in accordance with its general principles and including such departures from the present description as are known or customary practice in the art. It is intended that the description and examples be construed as illustrative only and that the true scope and spirit of the present invention are defined by the claims.

[000260] It should be understood that the present invention is not limited to the exact construction that has been described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the spirit of the invention. It is intended that the scope of the present invention be limited only by the appended claims.

[000261] It is clear that the terms “first”, “second”, etc. are used here. are used only to distinguish an object or operation from another object or operation, and do not require or imply that there is an actual relationship or order between those objects or operations. The terms “comprise”, “include” or any other variation thereof are intended to cover non-exclusive inclusion such that a process, method, article or device comprising a number of elements includes not only those elements but also other elements not expressly listed, as well as elements inherent in the process, method, product or device. Without further limitation, the element defined by the phrase "comprising..." does not preclude the presence of additional identical elements in the process, method, article or device incorporating that element.

[000262] Methods and devices provided by embodiments of the present invention have been described in detail above. In the description, embodiments of the invention have been used to illustrate the principles and feasibility of the present invention. The descriptions of the above embodiments are used only to help understand the methods and basic ideas of the present invention. At the same time, changes in the specific implementation and scope of application can be made by those skilled in the art according to the teachings of the present invention. Therefore, the contents of the description should not be construed as limiting the present invention.

Claims (37)

1. A method of indicating a physical uplink shared channel (PUSCH) performed by a base station, comprising: configuring for the terminal a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode, the plurality of SRS resource sets associated with a plurality of antenna panels in the terminal, and the plurality of SRS resources in the plurality of SRS resource sets associated with information related to to the beam; transmitting a channel state information reference signal (CSI-RS) corresponding to each of the plurality of SRS resource sets to the terminal via a plurality of transmission and reception points (TRPs); detecting the state of the uplink channel information of the SRS resource set according to the SRS transmitted by the terminal, and determining a plurality of beams for jointly transmitting uplink and indication information corresponding to each of the plurality of beams according to the detection result, wherein each of the beams corresponds to different TRP; transmitting a plurality of pieces of indication information to the terminal, wherein the indication information is configured to direct the terminal to determine beam-related information for joint uplink transmission based on the plurality of TRPs, and to transmit a beam-based PUSCH corresponding to the determined beam-related information. 2. The method of claim 1, wherein determining a plurality of beams for joint uplink transmission according to a detection result includes: determining a plurality of beams for joint transmission of the uplink according to the detection result, the maximum number of data layers that the terminal supports in the uplink, and the multiplexing mode of the multiple beams. 3. The method according to claim 1, in which the indication information contains: SRS resource indication identifier (SRI) and/or uplink transmission configuration indication status index (UL TCI). 4. The method of claim 3, wherein in response to the terminal being able to maintain an uplink UL TCI state, the indication information comprises an SRI or a UL TCI state index; or in response to the terminal not being able to maintain the uplink UL TCI state, the indication information contains the SRI. 5. The method of claim 3, wherein the indication information comprises a UL TCI status index, and the UL TCI status indicated by the UL TCI status index is configured with one of the following reference signals as an initial reference signal: Channel State Information Reference Signal (CSI-RS) or SRS. 6. The method of claim 5, wherein the UL TCI state is also configured to indicate a path loss reference signal (path loss RS) resource of the beam corresponding to the UL TCI state index. 7. The method of claim 5, wherein in response to the terminal's uplink transmission maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with CSI-RS as the initial reference signal or configured with SRS at as the original reference signal. 8. The method of claim 5, wherein in response to the terminal's uplink transmission not maintaining beam coherence, the UL TCI state indicated by the UL TCI state index is configured with SRS as the initial reference signal. 9. The method of claim 5, wherein in response to the UL TCI state not being configured to indicate a beam path loss resource RS corresponding to the UL TCI state index, the method further includes: transmitting resource configuration information to the terminal to configure a path loss resource RS associated with each of the beams. 10. The method of claim 3, wherein the indication information comprises a UL TCI status index, and the method also includes: transmitting beam configuration information to the terminal for configuring a plurality of pieces of information related to the candidate beam for the terminal; transmitting beam activation information to the terminal to instruct the terminal to activate the plurality of pieces of available beam-related information in the plurality of pieces of information related to the candidate beam; wherein the UL TCI status index is configured to direct the terminal to determine beam-related information for cooperative uplink transmission of multiple pieces of available beam-related information. 11. A physical uplink shared channel (PUSCH) transmission method performed by a terminal, comprising: receiving a plurality of sounding reference signal (SRS) resource sets that operate in a non-codebook mode and are configured by a base station, the plurality of SRS resource sets associated with a plurality of antenna panels in a terminal, and the plurality of SRS resources in the plurality of SRS resource sets associated with information , related to the beam; receiving a channel state information reference signal (CSI-RS) corresponding to each of a plurality of SRS resource sets transmitted by the base station via a plurality of transmit and receive points (TRPs); determining a shaping vector of each SRS resource in each of the SRS resource sets according to the plurality of CSI-RSs, and estimating the precoding information used to effect uplink transmission by determining the shaping vector as a column vector; determining beams for PUSCH transmission by the antenna panels according to the precoding information, and transmitting an SRS generated based on the precoding information using said beams by the antenna panels; receiving indication information corresponding to each of a plurality of beams for joint uplink transmission determined by the base station in accordance with the received SRS, each of the beams corresponding to a different transmission and reception point (TRP) in the base station; determining beam related information corresponding to a beam for joint uplink transmission according to the indication information, and transmitting a PUSCH to a base station based on the beam corresponding to said determined beam related information. 12. The method of claim 11, wherein determining a forming vector of each SRS resource in each of the SRS resource sets in accordance with the CSI-RS set includes: determining a shaping vector of each SRS resource in each of the SRS resource sets in accordance with the CSI-RS set, the maximum number of data layers that the terminal supports in the uplink, and the multi-beam multiplexing mode. 13. The method according to claim 11, in which the indication information contains: SRS resource indication identifier (SRI) and/or uplink transmission configuration indication status index (UL TCI). 14. The method of claim 13, wherein the indication information comprises a UL TCI status index, and the UL TCI status indicated by the UL TCI status index is configured with one of the following reference signals as an initial reference signal: Channel State Information Reference Signal (CSI-RS) or SRS. 15. The method of claim 14, wherein in response to the UL TCI state not being configured to indicate a beam path loss resource RS corresponding to the UL TCI state index, the method further includes: transmitting resource configuration information to the terminal to configure a path loss resource RS associated with each of the beams.