Communication method, apparatus and storage medium for PUSCH

Abstract

This disclosure relates to a communication method, apparatus, and storage medium for PUSCH. The PUSCH communication method involves a network device sending first indication information, which indicates a PUSCH transmission mode associated with a Transmitter Point (TRP). The PUSCH transmission mode associated with a TRP includes the terminal independently transmitting PUSCH to a single Transmitter Point (TRP) or collaboratively transmitting PUSCH to multiple TRPs. The terminal receives the first indication information, which also indicates the PUSCH transmission mode associated with a TRP, including either independently transmitting PUSCH to a single Transmitter Point (TRP) or collaboratively transmitting PUSCH to multiple TRPs. Based on the first indication information, the terminal either independently transmits PUSCH to a single TRP or collaboratively transmits PUSCH to multiple TRPs. This disclosure enables dynamic switching between single TRP and multiple TRP modes.

Description

Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, apparatus and storage medium for a physical uplink shared channel (PUSCH). Background Technology

[0002] With the development of communication technology, beam-based transmission and reception are required to ensure coverage. When network equipment (such as base stations) has multiple Transmission Reception Points (TRPs), multiple TRPs (Multi-TRPs) / panels can be used to provide services to terminals. The application of multiple TRPs / panels in network equipment is mainly to improve coverage at the cell edge, provide a more balanced quality of service within the service area, and use different methods to cooperate in transmitting data among multiple TRPs / panels. From a network architecture perspective, deploying the network with a large number of distributed access points and centralized baseband processing is more conducive to providing a balanced user experience rate and significantly reducing the latency and signaling overhead caused by handover. Utilizing the cooperation between multiple TRPs / panels to transmit / receive channels from multiple beams at multiple angles can better overcome various obstruction / blocking effects, ensure the robustness of link connections, and is suitable for improving transmission quality and meeting reliability requirements of Ultra Reliable Low Latency Communication (URLLC) services.

[0003] In the R16 research phase, transmission enhancements were performed on the physical downlink shared channel (PDSCH) based on the application of multi-point cooperative transmission technology between downlink multiple TRPs / PANELs. Since data transmission involves scheduling feedback between uplink and downlink channels, enhancing only the downlink data channel in URLLC research cannot guarantee service performance. Therefore, in the R17 research, enhancements were further made to the physical downlink control channel (PDCCH), physical uplink control channel (PUCCH), and physical uplink shared channel (PUSCH).

[0004] For PUSCH enhancement based on Multi-TRP, the current main scheme for PUSCH transmission controlled by a single downlink control information (DCI) involves using two independent Sounding Reference Signal Resource Indicator (SRI) fields in DCI0_1 / 0_2, each corresponding to an SRI for a different TRP, to control PUSCH transmission for that TRP. For PUSCH transmission enhancement based on single DCI and multi-TRP, similar to downlink PDSCH, dynamic switching between single TRP and multi-TRP is required to better adapt to transmission scenarios and actual channel conditions.

[0005] However, for the enhanced Multi-TRP PUSCH transmission, how to dynamically switch between single TRP and multi-TRP, and how to support flexible indication of the TRP to which the PUSCH is directed, are problems that need to be solved. Summary of the Invention

[0006] To overcome the problems existing in related technologies, this disclosure provides a communication method, apparatus and storage medium for PUSCH.

[0007] According to a first aspect of the present disclosure, a communication method for PUSCH is provided, applied to a network device, the communication method for PUSCH comprising: Send first indication information, which is used to indicate the PUSCH transmission mode associated with TRP. The PUSCH transmission mode associated with TRP includes the terminal independently transmitting PUSCH to a single transmit / receive point TRP or collaboratively transmitting PUSCH to multiple TRPs.

[0008] In one embodiment, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH and the TRP direction facing the terminal.

[0009] In one embodiment, the first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling.

[0010] In one embodiment, the communication method for PUSCH further includes: the DCI contains a plurality of SRS resource set indications, the SRS resource set indications including redefined reserved code points or newly added reserved code points.

[0011] In one embodiment, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0012] In one implementation, in response to the PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication. The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the first TRP direction to which the PUSCH is sent; The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0013] In one embodiment, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0014] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, one or more SRS resource sets contain a single SRS resource, and the indication information indicated by the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

[0015] In one embodiment, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0016] In one embodiment, the SRS resource set indication includes indication information for reordering the mapping relationship between multiple cooperative TRPs to which the PUSCH is sent and the SRS resource set indication, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

[0017] In one implementation, in response to the PUSCH being transmitted based on codebook, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, wherein the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indications.

[0018] According to a second aspect of this disclosure, a communication method for PUSCH is provided, applied to a terminal. The communication method for PUSCH includes: receiving first indication information, the first indication information indicating a PUSCH transmission mode associated with a Transmitter Point (TRP), the PUSCH transmission mode associated with the TRP including the terminal independently transmitting PUSCH to a single Transmitter Point (TRP) or collaboratively transmitting PUSCH to multiple Transmitter Points (TRPs). Based on the first indication information, the terminal either independently transmits PUSCH to a single TRP or collaboratively transmits PUSCH to multiple TRPs.

[0019] In one embodiment, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH and the TRP direction facing the terminal.

[0020] In one embodiment, the first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling.

[0021] In one embodiment, in response to the DCI containing multiple SRS resource set indications, and the SRS resource set indications not containing code points for indicating reserved code points, the SRS resource set indications include redefined reserved code points or newly added reserved code points.

[0022] In one embodiment, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0023] In one implementation, in response to the PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication. The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the TRP direction of the PUSCH towards the first. The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0024] In one embodiment, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0025] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, one or more SRS resource sets contain a single SRS resource, and the indication information indicated by the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

[0026] In one embodiment, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0027] In one embodiment, the SRS resource set indication includes indication information for reordering the mapping relationship between multiple cooperative TRPs to which the PUSCH is sent and the SRS resource set indication, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

[0028] In one embodiment, in response to the PUSCH being transmitted based on codebook, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, wherein the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0029] According to a third aspect of the present disclosure, a communication device for PUSCH is provided, the communication device for PUSCH comprising: The sending unit is configured to send first indication information, which is used to indicate the PUSCH sending mode associated with the TRP. The PUSCH sending mode associated with the TRP includes the terminal sending PUSCH independently to a single sending and receiving point TRP or sending PUSCH collaboratively to multiple TRPs.

[0030] In one embodiment, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH and the TRP direction facing the terminal.

[0031] In one embodiment, the first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling.

[0032] In one embodiment, in response to the DCI containing multiple SRS resource set indications, and the SRS resource set indications not containing code points for indicating reserved code points, the SRS resource set indications include redefined reserved code points or newly added reserved code points.

[0033] In one embodiment, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0034] In one implementation, in response to the PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication. The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the first TRP direction to which the PUSCH is sent; The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0035] In one embodiment, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0036] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, one or more SRS resource sets contain a single SRS resource, and the indication information indicated by the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

[0037] In one embodiment, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0038] In one embodiment, the SRS resource set indication includes indication information for reordering the mapping relationship between multiple cooperative TRPs to which the PUSCH is sent and the SRS resource set indication, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

[0039] In one embodiment, in response to the PUSCH being transmitted based on codebook, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, wherein the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0040] According to a fourth aspect of this disclosure, a communication device for PUSCH is provided, the communication device for PUSCH comprising: The receiving unit is configured to receive first indication information, which is used to indicate the PUSCH transmission mode associated with the TRP. The PUSCH transmission mode associated with the TRP includes the terminal independently transmitting PUSCH to a single transmit / receive point TRP or collaboratively transmitting PUSCH to multiple transmit / receive points TRP. The sending unit, according to the first indication information, sends PUSCH independently to a single TRP or collaboratively to multiple TRPs.

[0041] In one embodiment, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH and the TRP direction facing the terminal.

[0042] In one embodiment, the first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling.

[0043] In one embodiment, in response to the DCI containing multiple SRS resource set indications, and the SRS resource set indications not containing code points for indicating reserved code points, the SRS resource set indications include redefined reserved code points or newly added reserved code points.

[0044] In one embodiment, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0045] In one implementation, in response to the PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication. The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the TRP direction of the PUSCH towards the first. The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0046] In one embodiment, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0047] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, one or more SRS resource sets contain a single SRS resource, and the indication information of the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

[0048] In one embodiment, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0049] In one embodiment, the SRS resource set indication includes indication information for reordering the mapping relationship between multiple cooperative TRPs to which the PUSCH is sent and the SRS resource set indication, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

[0050] In one embodiment, in response to the PUSCH being transmitted based on codebook, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, wherein the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0051] According to a fifth aspect of this disclosure, a communication device for PUSCH is provided, comprising: Processor; memory used to store processor-executable instructions; The processor is configured to execute the communication method for PUSCH as described in the first aspect or any embodiment of the first aspect.

[0052] According to a sixth aspect of this disclosure, a communication device for PUSCH is provided, comprising: Processor; memory used to store processor-executable instructions; The processor is configured to execute the communication method for PUSCH as described in the second aspect or any embodiment of the second aspect.

[0053] According to a seventh aspect of this disclosure, a storage medium is provided, the storage medium storing instructions that, when executed by a processor of a network device, enable the network device to perform the communication method for PUSCH as described in the first aspect or any embodiment of the first aspect.

[0054] According to an eighth aspect of this disclosure, a storage medium is provided that stores instructions which, when executed by a processor of a network device, enable the network device to perform the communication method for PUSCH as described in the second aspect or any embodiment of the second aspect.

[0055] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: A network device sends first indication information, which indicates a PUSCH transmission mode associated with a TRP. This PUSCH transmission mode associated with a TRP includes either the terminal independently sending PUSCH to a single TRP or collaboratively sending PUSCH to multiple TRPs. Therefore, upon receiving the first indication information, the terminal can independently send PUSCH to a single TRP or collaboratively send PUSCH to multiple TRPs, thereby enabling dynamic switching indications supporting multiple TRPs and a single TRP.

[0056] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0057] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0058] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0059] Figure 2 This is a flowchart illustrating a communication method for PUSCH according to an exemplary embodiment.

[0060] Figure 3 This is a flowchart illustrating a communication method for PUSCH according to an exemplary embodiment.

[0061] Figure 4 This is a block diagram illustrating a communication device for PUSCH according to an exemplary embodiment.

[0062] Figure 5 This is a block diagram illustrating a communication device for PUSCH according to an exemplary embodiment.

[0063] Figure 6 This is a block diagram illustrating an apparatus for PUSCH communication according to an exemplary embodiment.

[0064] Figure 7 This is a block diagram illustrating an apparatus for PUSCH communication according to an exemplary embodiment. Detailed Implementation

[0065] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0066] The communication method for PUSCH provided in the disclosed embodiments can be applied to Figure 1 The wireless communication system shown. (See attached image) Figure 1 As shown, this wireless communication system includes network devices and terminals. The terminals connect to the network devices via wireless resources and transmit data. Data transmission between the network devices and terminals is based on beamforming. Furthermore, the network devices and terminals can enhance PUSCH uplink transmission based on Multi-TRP.

[0067] It is understandable that the number of TRPs used by network devices to transmit data with terminals based on Multi-TRP can be one or more. Figure 1 The wireless communication system shown is illustrated for network devices transmitting data with terminals based on TRP1 and TRP2, but is not intended to be limiting.

[0068] Understandable Figure 1 The wireless communication system shown is for illustrative purposes only. A wireless communication system may also include other network devices, such as core network equipment, wireless relay equipment, and wireless backhaul equipment. Figure 1 Not shown in the diagram. This disclosure does not limit the number of network devices and terminals included in the wireless communication system.

[0069] It is further understood that the wireless communication system of this disclosure is a network providing wireless communication functionality. The wireless communication system can employ different communication technologies, such as code division multiple access (CDMA), wideband code division multiple access (WCDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency-division multiple access (OFDMA), single-carrier frequency division multiple access (SC-FDMA), and carrier sense multiple access with collision avoidance. Based on factors such as capacity, speed, and latency, networks can be categorized as 2G (generation) networks, 3G networks, 4G networks, or future evolution networks, such as 5G networks. 5G networks can also be referred to as New Radio (NR). For ease of description, this disclosure may sometimes simply refer to the wireless communication network as a network.

[0070] Furthermore, the network device involved in this disclosure can also be referred to as a wireless access network device. This wireless access network device can be: a base station, an evolved Node B (EB), a home base station, an access point (AP) in a Wireless Fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, a transmission point (TP), or a transmission and reception point (TRP), etc. It can also be a gNB in ​​an NR system, or a component or part of a base station. It should be understood that the specific technology and specific device form used in the embodiments of this disclosure are not limited. In this disclosure, the network device can provide communication coverage for a specific geographical area and can communicate with terminals located within that coverage area (cell). Furthermore, when it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device.

[0071] Furthermore, the terminal involved in this disclosure can also be referred to as a terminal device, user equipment (UE), mobile station (MS), mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity to a user. For example, the terminal can be a handheld device with wireless connectivity, an in-vehicle device, etc. Currently, some examples of terminals include: smartphones, customer premise equipment (CPE), pocket personal computers (PPCs), handheld computers, personal digital assistants (PDAs), laptops, tablets, wearable devices, or in-vehicle devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be an in-vehicle device. It should be understood that the embodiments of this disclosure do not limit the specific technology or specific device form adopted by the terminal.

[0072] In this disclosure, data transmission between network devices and terminals is based on beamforming. Specifically, enhanced PUSCH uplink transmission between network devices and terminals can be achieved based on Multi-TRP. Currently, this is primarily based on PUSCH transmission controlled by a single DCI. The main scheme for PUSCH transmission controlled by a single DCI involves using two independent SRS resource set indicators in DCI0_1 / 0_2, each corresponding to an SRS resource set indicator facing a different TRP, to control PUSCH transmission towards different TRPs.

[0073] In related technologies, PUSCH uplink transmission schemes include codebook-based uplink transmission and non-codebook-based uplink transmission schemes.

[0074] In an NR system, a network device can configure a terminal with a maximum of one Sounding Reference Signal (SRS) resource set for codebook-based uplink transmission. This is achieved by configuring one SRS resource set as a codebook. When the network device schedules the PUSCH using DCI format 0_1 ​​and has configured two SRS resources for codebook-based uplink transmission for the terminal, the terminal determines the precoding and transport stream number of the PUSCH based on the SRS resource set indicator and the Transmission Precoding Matrix Indicator (TPMI) / Transmission Rank Indicator (TRI) indicators. The terminal then maps the data stream to the port of the SRS resource indicated by the determined precoding. The SRS resource set indicator and TPMI / TRI indicators are the SRS resource indicator and precoding information and number of layers in the DCI, respectively. When an SRS resource set indicator exists, it can only indicate that the network device has configured one of the multiple SRS resources for codebook-based uplink transmission for the terminal. When a network device schedules PUSCH using DCI format 0_1, and the network device has only configured one SRS resource for the terminal for codebook-based uplink transmission, there is no SRS resource set indication.

[0075] During uplink transmission, the terminal needs to precode the data using the Precoding Matrix Indicator (PMI) and Rank Indicator (RI) specified by the network side. Simultaneously, the precoded data is mapped to the corresponding antenna port according to the Spatial Relation Info (SRS) resource indicated by the SRS resource set. The RI is sometimes also called the data rank indicator or the transmission rank indicator. Those skilled in the art should understand the consistency of their meanings.

[0076] Table 1 illustrates the SRS resource set indication method for multiple SRS resources. Table 2, using a 4-antenna port as an example, shows the signaling indication methods for TPMI and RI in single-layer transmission, indicating different UE capabilities. Here, UE capabilities are categorized into three types: fully correlated, partially correlated, and uncorrelated, representing the correlation capability of the antenna port. Table 3 corresponds to the codewords for single-layer transmission with a 4-antenna port.

[0077] Table 1

[0078] Table 2

[0079] Table 3

[0080] In an NR system, a network device can configure up to one SRS resource set for a terminal for non-codebook-based uplink transmission. This is achieved by configuring an SRS resource set as non-codebook. For non-codebook-based uplink transmission, the terminal sends the network device a maximum number of SRS resources that can be transmitted simultaneously. This resource set can be configured with a maximum of four SRS resources, each containing one SRS port. The network device can indicate to the terminal via an SRS resource set indication that one or more SRS resources are used for determining PUSCH precoding. The number of SRS resources corresponding to the SRS resource set indication is the number of PUSCH streams transmitted. When the network device configures only one SRS resource for the terminal for non-codebook uplink transmission, DCIformat 0_1 ​​does not contain an SRS resource set indication, and the terminal determines the PUSCH precoding based on the configured SRS resources.

[0081] Below is a table of SRS resource set indications corresponding to non-codebook and codebook transmissions in the protocol.

[0082] Table 4

[0083] Table 5

[0084] Table 6

[0085] Table 7

[0086] Table 8

[0087] Table 9

[0088] Table 10

[0089] The aforementioned communication methods for PUSCH, whether codebook-based or non-codebook-based, can be enhanced using Multi-TRP. Currently, the main scheme for controlling PUSCH transmission based on single DCI uses two independent SRS resource set indicators in DCI0_1 / 0_2, each corresponding to an SRS resource set indicator facing a different TRP, to control PUSCH transmission towards that TRP. For PUSCH transmission enhancement based on single DCI and multi-TRP, dynamic switching between singleTRP and multi-TRP needs to be supported to better adapt to transmission scenarios and actual channel conditions. For example, when transmitting PUSCH based on multi-TRP, the network device can quickly schedule the PUSCH transmission to use single-TRP transmission via signaling, depending on the actual channel and service conditions. Furthermore, in the case of single-TRP transmission, it is necessary to support flexible indication of which specific TRP the PUSCH is sent to.

[0090] Figure 2 This is a flowchart illustrating a communication method for PUSCH according to an exemplary embodiment, such as... Figure 2 As shown, it includes the following steps.

[0091] In step S11, a first indication information is sent. The first indication information is used to indicate the PUSCH transmission mode associated with the TRP. The PUSCH transmission mode associated with the TRP includes the terminal independently transmitting PUSCH to a single TRP or collaboratively transmitting PUSCH to multiple TRPs.

[0092] In this embodiment of the present disclosure, the network device can instruct the terminal to dynamically switch between a single TRP and multiple TRPs based on the first indication information. For example, if the first indication information is used to indicate a single TRP, the terminal can independently send PUSCH to that single TRP. As another example, if the first indication information is used to indicate multiple TRPs, the terminal can collaboratively send PUSCH to multiple TRPs.

[0093] Figure 3 This is a flowchart illustrating a communication method for PUSCH according to an exemplary embodiment, such as... Figure 3 As shown, it includes the following steps.

[0094] In step S21, a first indication information is received. The first indication information is used to indicate the PUSCH transmission mode associated with the TRP. The PUSCH transmission mode associated with the TRP includes the terminal independently transmitting PUSCH to a single TRP or collaboratively transmitting PUSCH to multiple TRPs.

[0095] In step S22, based on the first indication information, PUSCH is sent independently to a single TRP or collaboratively to multiple TRPs.

[0096] In this embodiment of the disclosure, the terminal receives first indication information sent by the network device, and based on the first indication information, sends PUSCH independently to a single TRP or collaboratively to multiple TRPs. This disclosure enables dynamic switching between single and multiple TRPs and the sending of PUSCH.

[0097] In the communication method for PUSCH provided in this embodiment, the first indication information can be used to indicate the correspondence between the various transmission timings of PUSCH transmission and the TRP direction facing the terminal.

[0098] The transmission timings are associated with different TRPs according to their respective transmission directions. In one example, if the first indication indicates a single TRP transmission state and specifies TRP1 (the first SRS resource set), then all transmission timings are sent to TRP1. In another example, if the first indication indicates a multi-TRP transmission state and corresponds to TRP1 & TRP2, then the first set of PUSCH transmission timings is sent to the first TRP (the first SRS resource set), and the second set of PUSCH transmission timings is sent to the second TRP (the second SRS resource set).

[0099] In the communication method for PUSCH provided in this embodiment, the first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling.

[0100] The DCI signaling may include multiple SRS resource set indications, among which at least a first SRS resource set indication and a second SRS resource set indication are included. The first SRS resource set indication is used to indicate the first SRS resource set for scheduling PUSCH. The second SRS resource set indication is used to indicate the second SRS resource set for scheduling PUSCH. The first SRS resource set can be understood as corresponding to the first TRP direction, and the second SRS resource set corresponds to the second TRP direction.

[0101] In the communication method for PUSCH provided in this disclosure, the activation status of the TRP can be indicated based on reserved codepoints. The reserved codepoints can be used for indicating either a first SRS resource set or a second SRS resource set.

[0102] In one embodiment of this disclosure, the DCI includes multiple SRS resource set indicators, which include redefined reserved codepoints or newly added reserved codepoints.

[0103] Furthermore, in this embodiment, the redefined reserved codepoints and newly added reserved codepoints included in the SRS resource set indication can be obtained by redefining or adding them based on the codepoint information indicated in the corresponding SRS resource set indication table in the prior protocol version after an update or improvement. For example, the redefined reserved codepoints and newly added reserved codepoints included in the SRS resource set indication in R17 can be obtained by redefining or adding them based on the codepoints included in the SRS resource set indication in R16.

[0104] If the DCI contains multiple SRS resource set indicators, and the SRS resource set indicators do not contain code points used to indicate reserved code points, then the reserved code points can be redefined or added in the SRS resource set indicators.

[0105] For example, if there are many SRS resource set indications in the existing protocol's SRS resource set indication table but no corresponding reserved codepoint in the corresponding SRS resource set indication table, the reserved codepoint can be redefined or added in the SRS resource set indication. For example, the reserved codepoint can be redefined or added in at least one of the following situations.

[0106] -For codebook-based transmission, there are no reserved codepoints when the value is 2 or 4; -For non-codebook-based transmission, when Lmax is 1, there is no reserved codepoint when Lmax is 2 or 4; - When there is no SRS resource set indicator, dynamic switching cannot be supported for codebook-based and non-codebook-based transmissions, i.e., when it is 1.

[0107] The communication method for PUSCH provided in this disclosure can be categorized based on the code points corresponding to each SRS resource set indication in the multiple SRS resource set indications included in the DCI. For example, it can be categorized into code points indicating valid SRS resource set indications and configured reserved codepoints. If an SRS resource set indication indicates a reserved codepoint, the SRS resource set corresponding to the reserved codepoint is inactive, and no PUSCH is transmitted in the direction towards the TRP. If an SRS resource set indication indicates a valid SRS resource set indication codepoint, then PUSCH is transmitted in the direction indicated by the SRS resources in the SRS resource set corresponding to the valid SRS resource set indication codepoint. That is, when an SRS resource set indication indicates a reserved codepoint, it means that none of the SRS resources in the SRS resource set received by the TRP have been selected by the network device, which is equivalent to no PUSCH being transmitted in the direction of that TRP.

[0108] The communication method for PUSCH provided in this disclosure uses different codepoints indicated by the SRS resource set to achieve dynamic switching between a single TRP and multiple TRPs, and to flip multiple TRPs.

[0109] In one embodiment provided by this disclosure, during PUSCH transmission based on codebook and non-codebook, the TRP direction can be indicated based on the SRS resource set indication field.

[0110] In one implementation, the TRP direction can be indicated based on an SRS resource set indication table that is consistent with an existing SRS resource set indication table.

[0111] In one example, if a reserved codepoint is not present in an existing SRS resource set indication table, a bit can be added to the SRS resource set indication to indicate the SRS resource set.

[0112] In one example, for a PUSCH transmission based on non-codebook transmission, and where the data layer number of the PUSCH in the TRP direction is 1, the following Table 11 can be used as an indication.

[0113] Table 11

[0114] In another example, for PUSCH transmission based on codebook transmission and with an SRS resource count of 2, the following Table 12 can be used for indication.

[0115] Table 12

[0116] When applying Tables 11 and 12 above, if the first indication information sent by the network device indicates a reserved codepoint, it can be determined that the network device is configured not to activate transmission towards that TRP, that is, not to send PUSCH in the direction towards that TRP.

[0117] Furthermore, in the communication method for PUSCH provided in this embodiment, the SRS resource set indication includes indication information for indicating that multiple cooperating TRPs to which the PUSCH is sent are reordered based on the value of the SRS resource set indication being 3 (corresponding to binary 11). The sending direction of the TRP to which the PUSCH is sent is associated with the corresponding SRS resource set to support scheduling TRP flipping.

[0118] In the communication method for PUSCH provided in this embodiment, for non-codebook-based PUSCH transmission, a first SRS resource set indicator can be used to indicate the SRS resource combination used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the first TRP direction to which the PUSCH is sent. A second SRS resource set indicator is used to indicate the SRS resource combination used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indicator does not include indication information of the number of data layers in the TRP direction to which the PUSCH is sent.

[0119] In this embodiment of the present disclosure, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0120] In one example, when the SRS resource set indicator used to indicate the second SRS resource set does not contain information indicating the number of data tiers, the number of data tiers is indicated by the SRS resource set indicator corresponding to the first SRS resource set, as shown in Table 13 below. Table 13 is equivalent to Tables 14 and 15. Specifically, for the case where the number of data tiers is 1, the second SRS resource set indicator is shown in Table 14; for the case where the number of data tiers is 2, the second SRS resource set indicator is shown in Table 15.

[0121] Table 13

[0122] Table 14

[0123] Table 15

[0124] Referring to Tables 14 and 15, in this embodiment of the disclosure, the indication of the second SRS resource set can be redefined or the number of bits increased to indicate the usage of the second SRS resource set, and can support the indication of the activation status of a single TRP.

[0125] In this embodiment of the present disclosure, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, which can save the number of DCI bits compared to Table 13.

[0126] In the communication method for PUSCH provided in this embodiment, Table 13 above can also be equivalent to Tables 16 and 17 below. Specifically, for the case where the number of data layers is 1, the second SRS resource set indication is shown in Table 16; for the case where the number of data layers is 2, the second SRS resource set indication is shown in Table 17.

[0127] Table 16

[0128] Table 17

[0129] In the embodiments of this disclosure, the last two codepoints in Tables 16 and 17 above can be used to indicate which specific TRP is active, the second SRS resource set indicator indicates which SRS resource set the first SRS resource set indicator corresponds to, and then the first SRS resource set indicator is used to indicate the specific SRS resource set indicator resource selection, thereby obtaining the SRS resource set indicator transmission parameter selection in the single TRP transmission state.

[0130] In the PUSCH communication method provided in this disclosure, for both codebook-based and non-codebook-based PUSCH transmission methods, if one or more SRS resource sets corresponding to PUSCH transmission to one or more cooperative TRPs contain a single SRS resource (i.e., the SRS resource set contains only one SRS resource), the SRS resource set indication can be extended. The indication information of the SRS resource set indication can then indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set. Specifically, when the SRS resource set contains only one SRS resource, the SRS resource set indication defines 1 bit or 2 bits to indicate TRP activation.

[0131] In one implementation, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0132] Furthermore, the SRS resource set indication contains indication information for reordering the mapping relationship between the multiple cooperating TRPs to which the PUSCH is sent and the SRS resource set indication, wherein the sending direction of the TRP to which the PUSCH is sent is associated with the corresponding SRS resource set.

[0133] In one example, the first SRS resource set corresponds to the first TRP direction. If the code point indicated by the second SRS resource set indicates the single TRP case of "TRP2", it actually corresponds to the SRS resource set indicated by the first SRS resource set, which actually corresponds to the second SRS resource set, i.e. the second TRP direction. This achieves TRP reordering, i.e. TRP flipping.

[0134] In one implementation, in response to PUSCH based on codebook transmission, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to TPMI transmission status indication information. The PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0135] In one example, assuming a codebook-based PUSCH transmission method, the TPMI field still has two indicator fields, corresponding to TRP1 and TRP2 respectively. The TPMI field can be used to indicate both TPMI and RI.

[0136] In the first scenario, if both TPMI fields indicate TPMI and RI, and the TPMI field lacks sufficient reserved codepoints to indicate TRP activation information, the SRS resource set indicator can be redefined to supplement the TRP activation information, similar to Table 18 or Table 19. For example, in Table 18, each SRS resource set has only one SRS resource set definition (2 bits). In Table 19, each SRS resource set has only one SRS resource set definition (2 bits).

[0137] Table 18

[0138] Referring to Table 18, select the valid information of the TPMI field according to the SRS resource set indication. For example, if the value of the SRS resource set indication is equal to 0, then select the TPMI & RI corresponding to TMPI 1; if the value of the SRS resource set indication is equal to 2, it means that the current transmission is multi-TRP, and the first SRS resource set indication corresponds to the SRS resource set configured for TRP1; if the value of the SRS resource set indication is equal to 3, it means that the current transmission is multi-TRP, and the first SRS resource set indication corresponds to the SRS resource set configured for TRP2, that is, the scheduling TRP is flipped.

[0139] Table 19

[0140] Table 19 shows that TRP flipping is not supported.

[0141] The second scenario: If the TPMI corresponding to the second SRS resource set only indicates the TPMI and not the RI, and the TPMI field does not have enough reserved codepoints to indicate the TRP activation information, then the SRS resource set indicator can be redefined. This allows the TRP activation information to be supplemented by the SRS resource set indicator, similar to Table 20. In Table 20, each SRS resource set has only one SRS resource set indicator definition (1 bit).

[0142] Table 20

[0143] Referring to Table 20, valid information for the TPMI domain is selected according to the SRS resource set indication. For example, if the value of the SRS resource set indication is equal to 0, then the TPMI & RI corresponding to TMPI 1 is selected. Table 20 does not support scheduling TRP flipping. However, in this embodiment, scheduling TRP flipping can also be supported, for example, by using Table 18, which can also achieve the function of TRP mapping flipping.

[0144] It is understood that the process of implementing TRP indication with the first indication information involved in the embodiments of this disclosure can be applied to the terminal alone, or to the network device alone, or to the implementation process of PUSCH transmission through interaction between the terminal and the network device.

[0145] It should be noted that those skilled in the art will understand that the various implementation methods / embodiments described above in this disclosure can be used in conjunction with the foregoing embodiments, or they can be used independently. Whether used alone or in conjunction with the foregoing embodiments, the implementation principle is similar. In this disclosure, some embodiments are described as implementations used together. Of course, those skilled in the art will understand that such illustrative examples are not intended to limit the embodiments of this disclosure.

[0146] Based on the same concept, embodiments of this disclosure also provide a communication device for PUSCH.

[0147] It is understood that the communication device for PUSCH provided in this disclosure includes hardware structures and / or software modules corresponding to each function in order to achieve the above-mentioned functions. In conjunction with the units and algorithm steps of the various examples disclosed in this disclosure, this disclosure can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the technical solutions of this disclosure.

[0148] Figure 4 This is a block diagram illustrating a communication device for PUSCH according to an exemplary embodiment. (Refer to...) Figure 4 The communication device 100 for PUSCH includes a transmitting unit 101. The communication device 100 for PUSCH can be applied to network devices.

[0149] The sending unit 101 is configured to send first indication information, which is used to instruct the terminal to send PUSCH independently to a single sending and receiving point (TRP) or to send PUSCH collaboratively to multiple TRPs.

[0150] In one implementation, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH transmission and the TRP direction facing the terminal.

[0151] In one implementation, the first indication information is carried on DCI signaling and indicated through the SRS resource set indication in the DCI signaling.

[0152] In one implementation, the DCI includes multiple SRS resource set indicators, which include redefined reserved code points or newly added reserved code points.

[0153] In one implementation, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point.

[0154] If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction towards that TRP.

[0155] If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0156] In one implementation, in response to PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication.

[0157] The first SRS resource set indication is used to indicate the combination of SRS resources in the first SRS resource set corresponding to the PUSCH used for PUSCH transmission, and includes indication information of the number of data layers transmitted in the first TRP direction to which the PUSCH is sent.

[0158] The second SRS resource set indication is used to indicate the combination of SRS resources in the second SRS resource set corresponding to the PUSCH used for PUSCH transmission, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0159] In one implementation, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0160] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, if one or more SRS resource sets contain a single SRS resource, the indication information of the SRS resource set is used to indicate the PUSCH transmission status in the direction of the TRP corresponding to the SRS resource set.

[0161] In one implementation, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0162] In one implementation, the SRS resource set indication includes indication information for instructing multiple cooperating TRPs to which the PUSCH is sent to to reorder based on the value of the SRS resource set indication, wherein the sending direction of the TRP to which the PUSCH is sent is associated with the corresponding SRS resource set.

[0163] In one implementation, in response to PUSCH based on codebook transmission, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, and the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0164] Figure 5 This is a block diagram illustrating a communication device for PUSCH according to an exemplary embodiment. (Refer to...) Figure 5 The communication device 200 for PUSCH includes a receiving unit 201 and a transmitting unit 202. The communication device 200 for PUSCH can be applied to a terminal.

[0165] The receiving unit 201 is configured to receive first indication information, which instructs the terminal to send PUSCH independently to a single transmitting / receiving point (TRP) or to collaboratively send PUSCH to multiple transmitting / receiving points (TRPs). The sending unit 202, according to the first indication information, sends PUSCH independently to a single TRP or collaboratively sends PUSCH to multiple TRPs.

[0166] In one implementation, the first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH transmission and the TRP direction facing the terminal.

[0167] In one implementation, the first indication information is carried on DCI signaling and indicated through the SRS resource set indication in the DCI signaling.

[0168] In one implementation, the DCI includes multiple SRS resource set indicators, which include redefined reserved code points or newly added reserved code points.

[0169] In one implementation, the DCI includes multiple SRS resource set indications, and the code point corresponding to each SRS resource set indication includes a code point indicating a valid SRS resource set indication, as well as a configured reserved code point.

[0170] If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction towards that TRP.

[0171] If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

[0172] In one implementation, in response to PUSCH being transmitted based on a non-codebook, the SRS resource set indication includes at least a first SRS resource set indication and a second SRS resource set indication.

[0173] The first SRS resource set indication is used to indicate the combination of SRS resources in the first SRS resource set corresponding to the PUSCH used for PUSCH transmission, and includes indication information of the number of data layers transmitted in the TRP direction of the PUSCH transmission.

[0174] The second SRS resource set indication is used to indicate the combination of SRS resources in the second SRS resource set corresponding to the PUSCH used for PUSCH transmission, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

[0175] In one implementation, the set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

[0176] In one implementation, in response to sending a PUSCH transmission to one or more cooperative TRPs, if one or more SRS resource sets contain a single SRS resource, the indication information of the SRS resource set is used to indicate the PUSCH transmission status in the direction of the TRP corresponding to the SRS resource set.

[0177] In one implementation, the indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

[0178] In one implementation, the SRS resource set indication includes indication information for instructing multiple cooperating TRPs to which the PUSCH is sent to to reorder based on the value of the SRS resource set indication, wherein the sending direction of the TRP to which the PUSCH is sent is associated with the corresponding SRS resource set.

[0179] In one implementation, in response to PUSCH based on codebook transmission, the SRS resource set indicator indicates PUSCH transmission status indication information for different cooperative TRPs, corresponding to precoded indication information TPMI transmission status indication information, and the PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields.

[0180] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0181] Figure 6 This is a block diagram illustrating an apparatus for PUSCH communication according to an exemplary embodiment. For example, apparatus 300 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0182] Reference Figure 6 The device 300 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input / output (I / O) interface 312, sensor component 314, and communication component 316.

[0183] Processing component 302 typically controls the overall operation of device 300, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 302 may include one or more processors 320 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 302 may include one or more modules to facilitate interaction between processing component 302 and other components. For example, processing component 302 may include a multimedia module to facilitate interaction between multimedia component 308 and processing component 302.

[0184] Memory 304 is configured to store various types of data to support the operation of device 300. Examples of such data include instructions for any application or method operating on device 300, contact data, phonebook data, messages, pictures, videos, etc. Memory 304 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0185] The power supply component 306 provides power to the various components of the device 300. The power supply component 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 300.

[0186] Multimedia component 308 includes a screen that provides an output interface between the device 300 and the 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 touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of the touch or swipe action but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 308 includes a front-facing camera and / or a rear-facing camera. When the device 300 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0187] Audio component 310 is configured to output and / or input audio signals. For example, audio component 310 includes a microphone (MIC) configured to receive external audio signals when device 300 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 304 or transmitted via communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.

[0188] I / O interface 312 provides an interface between processing component 302 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0189] Sensor assembly 314 includes one or more sensors for providing status assessments of various aspects of device 300. For example, sensor assembly 314 may detect the on / off state of device 300, the relative positioning of components such as the display and keypad of device 300, changes in the position of device 300 or a component of device 300, the presence or absence of user contact with device 300, the orientation or acceleration / deceleration of device 300, and temperature changes of device 300. Sensor assembly 314 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 314 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0190] Communication component 316 is configured to facilitate wired or wireless communication between device 300 and other devices. Device 300 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 316 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 316 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0191] In an exemplary embodiment, the apparatus 300 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0192] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 304 including instructions, which can be executed by a processor 320 of the device 300 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0193] Figure 7 This is a block diagram illustrating an apparatus for PUSCH communication according to an exemplary embodiment. For example, apparatus 400 may be provided as a network device. (Refer to...) Figure 7The apparatus 400 includes a processing component 422, which further includes one or more processors, and memory resources represented by memory 432 for storing instructions, such as application programs, that can be executed by the processing component 422. The application programs stored in memory 432 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 422 is configured to execute instructions to perform the methods described above.

[0194] Device 400 may also include a power supply component 426 configured to perform power management of device 400, a wired or wireless network interface 450 configured to connect device 400 to a network, and an input / output (I / O) interface 458. Device 400 may operate on an operating system stored in memory 432, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0195] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 432 including instructions, which can be executed by a processing component 422 of the apparatus 400 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, and optical data storage device, etc.

[0196] It can be further understood that in this disclosure, "multiple" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0197] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0198] It can be further understood that, unless otherwise specified, "connection" includes both direct connections where no other components exist between the two parties and indirect connections where other components exist between them.

[0199] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0200] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0201] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A communication method for a Physical Uplink Shared Channel (PUSCH), characterized in that, Applied to network devices, the communication method for PUSCH includes: Send first indication information, which is used to indicate the PUSCH transmission mode associated with the sending and receiving point (TRP). The PUSCH transmission mode associated with the TRP includes the terminal independently sending PUSCH to a single TRP or collaboratively sending PUSCH to multiple TRPs. The first indication information is used to indicate the correspondence between each transmission timing of the PUSCH transmission and the direction of the TRP that the terminal is facing. The first indication information is carried on the downlink control signaling (DCI) and indicated by the probe reference signal (SRS resource set indication) in the DCI signaling. When the value of the SRS resource set indication is equal to 2, and the value of the SRS resource set indication is equal to 3, it is used to indicate the flipping of multiple cooperative TRPs to which the PUSCH is sent, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

2. The method of communicating for a PUSCH according to claim 1, wherein, The DCI contains multiple SRS resource set indications, which include redefined reserved code points or newly added reserved code points.

3. The method of communicating for a PUSCH of claim 2, wherein, The DCI contains multiple SRS resource set indications, and the code points corresponding to each SRS resource set indication include code points indicating valid SRS resource set indications, as well as configured reserved code points. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

4. The method of communicating for a PUSCH of claim 2, wherein, In response to the PUSCH being transmitted based on a non-codebook, and the SRS resource set indication including at least a first SRS resource set indication and a second SRS resource set indication; The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the first TRP direction to which the PUSCH is sent; The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

5. The method of communicating for a PUSCH of claim 4, wherein, The set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

6. The method of communicating for a PUSCH of claim 1, wherein, In response to the transmission of PUSCH to one or more cooperative TRPs, the one or more SRS resource sets corresponding to the transmission contain a single SRS resource, and the indication information indicated by the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

7. The method of communicating for a PUSCH of claim 6, wherein, The indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions. 8.The communication method for PUSCH according to any one of claims 6-7, characterized in that, In response to the PUSCH being transmitted based on codebook, the SRS resource set indicator indicates the PUSCH transmission status indication information for different cooperative TRPs, corresponding to the precoded indication information TPMI transmission status indication information. The PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indication fields. 9.A method for communication of a physical uplink shared channel (PUSCH), comprising: Applied to a terminal, the communication method for PUSCH includes: Receive first indication information, which is used to indicate the PUSCH transmission mode associated with TRP. The PUSCH transmission mode associated with TRP includes the terminal independently transmitting PUSCH to a single TRP or collaboratively transmitting PUSCH to multiple transmit and receive point TRPs. The first indication information is used to indicate the correspondence between each transmission timing of the PUSCH transmission and the TRP direction that the terminal is facing. Based on the first instruction information, send PUSCH independently to a single TRP or send PUSCH collaboratively to multiple TRPs; The first indication information is carried on DCI signaling and indicated by the SRS resource set indication in the DCI signaling; relative to the case where the value of the SRS resource set indication is equal to 2, when the value of the SRS resource set indication is equal to 3, it is used to indicate the flipping of multiple cooperative TRPs to which the PUSCH is sent, wherein the sending direction of the TRP is associated with the corresponding SRS resource set.

10. The method of communicating for a PUSCH of claim 9, wherein, The DCI contains multiple SRS resource set indications, which include redefined reserved code points or newly added reserved code points.

11. The method for PUSCH communication of claim 9, wherein, The DCI contains multiple SRS resource set indications, and the code points corresponding to each SRS resource set indication include code points indicating valid SRS resource set indications, as well as configured reserved code points. If the SRS resource set indication indicates the SRS resource set indication of the reserved code point, then the SRS resource set corresponding to the SRS resource set indication of the reserved code point is inactive, and no PUSCH is sent in the direction facing the TRP. If the SRS resource set indication indicates a code point of a valid SRS resource set indication, then a PUSCH oriented towards the TRP is sent in the direction of the SRS resource indicated in the SRS resource set corresponding to the code point of the valid SRS resource set indication.

12. The method for PUSCH communication of claim 10, wherein, In response to the PUSCH being transmitted based on a non-codebook, and the SRS resource set indication including at least a first SRS resource set indication and a second SRS resource set indication; The first SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the first SRS resource set corresponding to the PUSCH, and includes indication information of the number of data layers transmitted in the TRP direction of the PUSCH towards the first. The second SRS resource set indication is used to indicate the combination of SRS resources used for PUSCH transmission in the second SRS resource set corresponding to the PUSCH, and the second SRS resource set indication does not contain indication information of the data layer number in the TRP direction to which the PUSCH is transmitted.

13. The method for PUSCH communication of claim 12, wherein, The set of valid SRS resource set indicator code points included in the second SRS resource set is a subset of the set of valid SRS resource set indicator code points in the first SRS resource set, and includes redefined and / or newly added code points, which are used to indicate different PUSCH transmission states of the cooperative TRP.

14. The method for PUSCH communication of claim 9, wherein, In response to the transmission of PUSCH to one or more cooperative TRPs, the one or more SRS resource sets corresponding to the transmission contain a single SRS resource, and the indication information indicated by the SRS resource set is used to indicate the PUSCH transmission status in the TRP direction corresponding to the SRS resource set.

15. The method of communicating for a PUSCH of claim 14, wherein, The indication information of the SRS resource set indication is used to jointly indicate the activation status of multiple corresponding SRS resource sets, wherein different SRS resource sets correspond to different TRP directions.

16. The method of communicating for a PUSCH of any one of claims 14-15, wherein, In response to the PUSCH being transmitted based on codebook, the SRS resource set indication indicates the PUSCH transmission status indication information for different cooperative TRPs, corresponding to the precoded indication information TPMI transmission status indication information. The PUSCH transmission status indication information is used to indicate the transmission status of different TRPs corresponding to different TPMI indications.

17. A communications apparatus for a physical uplink shared channel (PUSCH), the apparatus comprising: a transmitter configured to transmit a first signal on a first resource and a second signal on a second resource, wherein the first resource and the second resource are different. The communication device for PUSCH includes: The transmitting unit is configured to transmit first indication information, which is used to instruct the terminal to independently transmit PUSCH to a single TRP or to collaboratively transmit PUSCH to multiple TRPs. The first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH transmission and the TRP direction to which the terminal is facing. The first indication information is carried on DCI signaling and indicated by the probe reference signal SRS resource set indication in the DCI signaling. When the value of the SRS resource set indication is equal to 2, and the value of the SRS resource set indication is equal to 3, it is used to instruct the multiple collaborative TRPs to which the PUSCH transmission is directed to be flipped, wherein the transmission direction of the directed TRP is associated with the corresponding SRS resource set.

18. A communications apparatus for a physical uplink shared channel (PUSCH), the apparatus comprising: a transmitter configured to transmit a first signal on a first resource and a second signal on a second resource, wherein the first resource and the second resource are different. The communication device for PUSCH includes: The receiving unit is configured to receive first indication information, which is used to instruct the terminal to send PUSCH independently to a single TRP or to send PUSCH collaboratively to multiple TRPs. The first indication information is used to indicate the correspondence between the various transmission timings of the PUSCH transmission and the TRP direction to which the terminal is facing. The first indication information is carried on DCI signaling and indicated by the Probe Reference Signal (SRS) Resource Set Indication in the DCI signaling. When the SRS Resource Set Indication value is 3, relative to the case where the SRS Resource Set Indication value is 2, it is used to indicate the flipping of the multiple cooperating TRPs to which the PUSCH transmission is directed, wherein the TRP transmission direction is associated with the corresponding SRS Resource Set. The sending unit is configured to send PUSCH independently to a single TRP or to multiple TRPs collaboratively, based on the first indication information.

19. A communication apparatus for a Physical Uplink Shared Channel (PUSCH), characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is configured to: execute the communication method for PUSCH as described in any one of claims 1 to 8, or execute the communication method for PUSCH as described in any one of claims 9 to 16.

20. A storage medium, characterized by The storage medium stores instructions that, when executed by the processor of a network device, enable the network device to perform the communication method for PUSCH as described in any one of claims 1 to 8, or, when executed by the processor of a terminal, enable the terminal to perform the communication method for PUSCH as described in any one of claims 9 to 16.

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