Communication method for PUSCH, communication apparatus for PUSCH, and storage medium

Abstract

The present disclosure relates to a communication method for PUSCH, a communication device for PUSCH and a storage medium. The communication method for PUSCH comprises: in response to a terminal being configured with a plurality of SRS resource sets respectively corresponding to a plurality of coordinated transmission and reception points (TRPs), a network device sending a first activation indication. The terminal receives the first activation indication. The first activation indication is used to indicate a PUSCH transmission mode associated with the plurality of coordinated TRPs, and the PUSCH transmission mode comprises the terminal independently transmitting PUSCHs facing a single TRP or cooperatively transmitting PUSCHs facing a plurality of TRPs. The terminal independently transmits PUSCHs facing a single TRP based on the single TRP activated by the first activation indication, or cooperatively transmits PUSCHs facing a plurality of TRPs based on the plurality of TRPs activated by the first activation indication. The present disclosure realizes dynamic switching between a single TRP and a plurality of TRPs in the process of the terminal transmitting PUSCHs.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of communication technology, and in particular, to a communication method for PUSCH, a communication device for PUSCH, and a storage medium. BACKGROUND

[0002] With the development of communication technology, in order to ensure coverage, it is necessary to use beam-based transmission and reception. When a network device (such as a base station) has multiple transmission reception points (TRPs), multiple TRPs (Multi-TRP) / panels can be used to provide services for terminals. The application of network device multi-TRP / PANEL is mainly to improve the coverage of the cell edge, provide more balanced service quality in the service area, and cooperatively transmit data between multiple TRPs / PANELs in different ways. From the perspective of network morphology, network deployment in the manner of a large number of distributed access points plus baseband centralized processing will be more conducive to providing balanced user experience rate, and significantly reducing the latency and signaling overhead caused by handover. By utilizing the cooperation between multiple TRPs / PANELs, transmission / reception of channels from multiple angles and multiple beams can better overcome various occlusion / blocking effects, guarantee the robustness of link connection, and be suitable for ultra-reliable low-latency communication (URLLC) services to improve transmission quality and meet reliability requirements.

[0003] In the R16 research stage, based on the application of multi-point cooperative transmission technology between downlink multi-TRP / PANEL, transmission enhancement is performed on the physical downlink shared channel (PDSCH). Since data transmission includes scheduling feedback of uplink and downlink channels, in the research of URLLC, only enhancing the downlink data channel cannot guarantee the performance of the service. Therefore, in the R17 research, the downlink control channel (PDCCH) and the uplink control channel (PUCCH) and the uplink shared channel (PUSCH) are further enhanced.

[0004] For the single DCI based multi-TRP PUSCH transmission enhancement, similar to the downlink PDSCH, dynamic switching between single TRP and multi-TRP needs to be supported, so as to better adapt to the transmission scenario and actual channel condition.

[0005] However, for the enhanced Multi-TRP PUSCH transmission, how to perform dynamic switching between single TRP and multi-TRP, and how to support flexible indication of the TRP to which the PUSCH faces are problems to be solved. SUMMARY

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

[0007] According to a first aspect of an embodiment of the present disclosure, a communication method for PUSCH is provided, applied to a network device, and the communication method for PUSCH comprises the following steps.

[0008] In response to the terminal being configured with a plurality of SRS resource sets respectively corresponding to a plurality of coordinated transmission and reception points (TRPs), a first activation indication is sent, wherein the first activation indication is used to indicate a PUSCH transmission mode associated with the plurality of coordinated TRPs, and the PUSCH transmission mode comprises independent PUSCH transmission of the terminal facing a single TRP or cooperative PUSCH transmission of the terminal facing a plurality of TRPs.

[0009] In an embodiment, the first activation indication is carried by a medium access control control element (MAC CE).

[0010] In an embodiment, the MAC CE is used to activate one or more SRS resource sets, and each SRS resource set is associated with a different TRP.

[0011] In an embodiment, the MAC CE activates one or more SRS resource sets in at least one of the following ways:

[0012] an identity of the one or more SRS resource sets is indicated; the one or more SRS resource sets is indicated by a bitmap; the one or more SRS resource sets is indicated by a codepoint.

[0013] In an implementation, the MAC CE is used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state including transmission of the PUSCH through independent transmission towards a single TRP or cooperative transmission towards multiple TRPs.

[0014] In an implementation, the first activation indication is carried by a group common downlink control information (GC-DCI).

[0015] In an implementation, the GC-DCI includes a first information field, the first information field being used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state including transmission of the PUSCH through independent transmission towards a single TRP or cooperative transmission towards multiple TRPs.

[0016] In an implementation, in response to the TRP cooperation transmission state including transmission of the PUSCH through independent transmission towards a single TRP, the first information field is used to indicate a corresponding activated SRS resource set, the activated SRS resource set being associated with PUSCH transmission of the PUSCH towards the TRP.

[0017] In an implementation, in response to the TRP cooperation transmission state including cooperative transmission of the PUSCH towards multiple TRPs, the first information field is used to indicate at least one of:

[0018] a cooperative transmission state towards multiple TRPs or a cooperative transmission order indicating different PUSCH transmission occasions towards multiple TRPs;

[0019] a correspondence between a transmission parameter indication field and PUSCH transmission towards different TRPs;

[0020] an association relationship between an SRS resource set and corresponding PUSCH transmission towards different TRPs.

[0021] In an implementation, the first activation indication is indicated by an independent indication field carried on the DCI.

[0022] In an implementation, the DCI includes a first DCI field, the first DCI field being used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state including transmission of the PUSCH through independent transmission towards a single TRP or cooperative transmission towards multiple TRPs.

[0023] In an embodiment, in response to the TRP coordinated transmission state including independent transmission of PUSCH facing a single TRP, the first DCI field is used to indicate an activated TRP.

[0024] In an embodiment, in response to the TRP coordinated transmission state including coordinated transmission of PUSCH facing multiple TRPs, the first DCI field is used to indicate a multiple-TRP coordinated transmission state or a coordinated transmission order of multiple TRPs.

[0025] In an embodiment, the TRP indicated in the first DCI field has a corresponding relationship with at least one of SRI, precoding information TPMI, and TPC signaling.

[0026] In an embodiment, the first activation indication is carried by a newly added or redefined DCI field in DCI.

[0027] According to a second aspect of the embodiments of the present disclosure, a communication method for PUSCH is provided, applied to a terminal, and the communication method comprises the following steps.

[0028] receiving a first activation indication, the first activation indication being used to indicate a PUSCH transmission mode associated with the multiple coordinated transmission and reception points (TRPs), the PUSCH transmission mode including independent transmission of PUSCH facing a single TRP or coordinated transmission of PUSCH facing multiple TRPs; based on the single TRP for independent transmission of PUSCH activated by the first activation indication, or based on the multiple TRPs activated by the first activation indication, coordinated transmission of PUSCH facing multiple TRPs.

[0029] In an embodiment, the first activation indication is carried by a medium access control control element (MAC CE).

[0030] In an embodiment, the MAC CE is used to activate one or more SRS resource sets, each SRS resource set being associated with a different TRP.

[0031] In an embodiment, the MAC CE activates one or more SRS resource sets in at least one of the following ways:

[0032] indicating the identity of the one or more SRS resource sets;

[0033] indicating the one or more SRS resource sets by a bit map;

[0034] indicating the one or more SRS resource sets by a code point.

[0035] In an embodiment, the MAC CE is used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state comprising transmitting the PUSCH independently towards a single TRP or cooperatively towards multiple TRPs.

[0036] In an embodiment, the first activation indication is carried by a group common downlink control information (GC-DCI).

[0037] In an embodiment, the GC-DCI comprises a first information field, the first information field being used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state comprising transmitting the PUSCH independently towards a single TRP or cooperatively towards multiple TRPs.

[0038] In an embodiment, in response to the TRP cooperation transmission state comprising transmitting the PUSCH independently towards a single TRP, the first information field is used to indicate a corresponding activated SRS resource set, the activated SRS resource set being associated with PUSCH transmission towards the TRP.

[0039] In an embodiment, in response to the TRP cooperation transmission state comprising transmitting the PUSCH cooperatively towards multiple TRPs, the first information field is used to indicate at least one of:

[0040] a cooperative transmission state towards multiple TRPs or a cooperation transmission order indicating different PUSCH transmission occasions towards multiple TRPs;

[0041] a correspondence between a transmission parameter indication field and PUSCH transmission towards different TRPs;

[0042] an association relationship between a SRS resource set and corresponding PUSCH transmission towards different TRPs.

[0043] In an embodiment, the first activation indication is indicated by an independent indication field carried on a downlink control information (DCI).

[0044] In an embodiment, the DCI comprises a first DCI field, the first DCI field being used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state comprising transmitting the PUSCH independently towards a single TRP or cooperatively towards multiple TRPs.

[0045] In an embodiment, in response to the TRP cooperation transmission state comprising transmitting the PUSCH independently towards a single TRP, the first DCI field is used to indicate an activated TRP.

[0046] In an implementation, in response to the TRP cooperation transmission state including a plurality of TRP cooperation transmission PUSCH, the first DCI field is used to indicate a plurality of TRP cooperation transmission state or a cooperation transmission sequence of a plurality of TRPs.

[0047] In an implementation, the TRP indicated in the first DCI field has a corresponding relationship with at least one of SRI, precoding information TPMI, and TPC signaling.

[0048] In an implementation, the first activation indication is carried by a newly added or redefined DCI field in DCI.

[0049] According to a third aspect of the embodiments of the present disclosure, a communication apparatus for PUSCH is provided, and the communication apparatus for PUSCH comprises:

[0050] The sending unit is configured to send a first activation indication in a case where a terminal is configured with a plurality of SRS resource sets respectively corresponding to a plurality of cooperation transmission and reception points (TRPs); the first activation indication is used to indicate a PUSCH transmission mode associated with the plurality of TRPs, and the PUSCH transmission mode comprises terminal independent PUSCH transmission facing a single TRP or PUSCH transmission facing a plurality of TRPs.

[0051] In an implementation, the first activation indication is carried by a medium access control control element (MAC CE).

[0052] In an implementation, the MAC CE is used to activate one or more SRS resource sets, and each SRS resource set is associated with a different TRP.

[0053] In an implementation, the MAC CE activates one or more SRS resource sets in at least one of the following ways:

[0054] indicating the identity of the one or more SRS resource sets; indicating the one or more SRS resource sets by a bit map; and indicating the one or more SRS resource sets by a code point.

[0055] In an implementation, the MAC CE is used to indicate a TRP cooperation transmission state of PUSCH, and the TRP cooperation transmission state comprises independent PUSCH transmission facing a single TRP or PUSCH transmission facing a plurality of TRPs.

[0056] In an implementation, the first activation indication is carried by group common downlink control information (GC-DCI).

[0057] In an embodiment, the first information field in the group common DCI is used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state comprising independent transmission of the PUSCH targeting a single TRP or cooperative transmission of the PUSCH targeting multiple TRPs.

[0058] In an embodiment, in response to the TRP cooperation transmission state comprising independent transmission of the PUSCH targeting a single TRP, the first information field is used to indicate a corresponding activated SRS resource set associated with the PUSCH transmission of the PUSCH targeting the TRP.

[0059] In an embodiment, in response to the TRP cooperation transmission state comprising cooperative transmission of the PUSCH targeting multiple TRPs, the first information field is used to indicate at least one of:

[0060] a cooperative transmission state targeting multiple TRPs or a cooperative transmission order indicating different PUSCH transmission occasions targeting multiple TRPs;

[0061] a correspondence between a transmission parameter indication field and PUSCH transmission targeting different TRPs;

[0062] an association relationship between a SRS resource set and corresponding PUSCH transmission targeting different TRPs.

[0063] In an embodiment, the first activation indication is indicated by an independent indication field carried on a downlink control information (DCI).

[0064] In an embodiment, the DCI comprises a first DCI field used to indicate a TRP cooperation transmission state of the PUSCH, the TRP cooperation transmission state comprising independent transmission of the PUSCH targeting a single TRP or cooperative transmission of the PUSCH targeting multiple TRPs.

[0065] In an embodiment, in response to the TRP cooperation transmission state comprising independent transmission of the PUSCH targeting a single TRP, the first DCI field is used to indicate an activated TRP.

[0066] In an embodiment, in response to the TRP cooperation transmission state comprising cooperative transmission of the PUSCH targeting multiple TRPs, the first DCI field is used to indicate a cooperative transmission state of multiple TRPs or a cooperative transmission order indicating multiple TRPs.

[0067] In an embodiment, the TRP indicated in the first DCI field has a correspondence relationship with at least one of SRI, precoding information (TPMI) and TPC signaling.

[0068] In an implementation form, the first activation indication is carried by a newly added or redefined DCI field in a DCI.

[0069] According to a fourth aspect of embodiments herein, a communication apparatus for PUSCH is provided, the communication apparatus for PUSCH comprising:

[0070] a receiving unit configured to receive a first activation indication, the first activation indication indicating a PUSCH transmission mode associated with a plurality of coordinated transmission reception points, TRPs, the PUSCH transmission mode comprising a terminal transmitting PUSCH independently towards a single TRP or transmitting PUSCH towards a plurality of TRPs in cooperation, and a transmitting unit configured to transmit PUSCH independently towards a single TRP activated by the first activation indication or transmitting PUSCH towards a plurality of TRPs in cooperation activated by the first activation indication.

[0071] In an implementation form, the first activation indication is carried by a medium access control control element, MAC CE.

[0072] In an implementation form, the MAC CE is configured to activate one or more SRS resource sets, each SRS resource set being associated with a different TRP.

[0073] In an implementation form, the MAC CE activates the one or more SRS resource sets in at least one of the following ways:

[0074] indicating an identity of the one or more SRS resource sets;

[0075] indicating the one or more SRS resource sets by a bitmap;

[0076] indicating the one or more SRS resource sets by a codepoint.

[0077] In an implementation form, the MAC CE is configured to indicate a TRP cooperation transmission state of PUSCH, the TRP cooperation transmission state comprising transmitting PUSCH independently towards a single TRP or transmitting PUSCH towards a plurality of TRPs in cooperation.

[0078] In an implementation form, the first activation indication is carried by a group common downlink control information, GC-DCI.

[0079] In an implementation form, the group common DCI comprises a first information field, the first information field being configured to indicate a TRP cooperation transmission state of PUSCH, the TRP cooperation transmission state comprising transmitting PUSCH independently towards a single TRP or transmitting PUSCH towards a plurality of TRPs in cooperation.

[0080] In an embodiment, in response to the TRP cooperative transmission state comprising independent transmission of PUSCH targeting a single TRP, the first information field is configured to indicate a corresponding activated SRS resource set associated with the PUSCH transmission targeting the TRP.

[0081] In an embodiment, in response to the TRP cooperative transmission state comprising cooperative transmission of PUSCH targeting multiple TRPs, the first information field is configured to indicate at least one of:

[0082] a cooperative transmission state targeting multiple TRPs or a cooperative transmission order indicating different PUSCH transmission occasions targeting multiple TRPs;

[0083] a correspondence between the transmission parameter indication field and the PUSCH transmission targeting different TRPs;

[0084] an association relationship between the SRS resource set and the corresponding PUSCH transmission targeting different TRPs.

[0085] In an embodiment, the first activation indication is indicated by an independent indication field carried on a downlink control information (DCI).

[0086] In an embodiment, the DCI comprises a first DCI field, the first DCI field being configured to indicate a TRP cooperative transmission state of PUSCH, the TRP cooperative transmission state comprising independent transmission of PUSCH targeting a single TRP or cooperative transmission of PUSCH targeting multiple TRPs.

[0087] In an embodiment, in response to the TRP cooperative transmission state comprising independent transmission of PUSCH targeting a single TRP, the first DCI field is configured to indicate an activated TRP.

[0088] In an embodiment, in response to the TRP cooperative transmission state comprising cooperative transmission of PUSCH targeting multiple TRPs, the first DCI field is configured to indicate a cooperative transmission state of multiple TRPs or a cooperative transmission order indicating multiple TRPs.

[0089] In an embodiment, the TRP indicated in the first DCI field has a correspondence relationship with at least one of SRI, precoding information (TPMI), and TPC signaling.

[0090] In an embodiment, the first activation indication is carried by a newly added or redefined DCI field in the DCI.

[0091] According to a fifth aspect of the embodiments of the present disclosure, a communication apparatus for PUSCH is provided, comprising:

[0092] a processor; a memory for storing processor-executable instructions;

[0093] The processor is configured to perform the communication method for PUSCH in the first aspect or any one of the implementation manners of the first aspect.

[0094] According to a sixth aspect of the embodiments of the present disclosure, a communication apparatus for PUSCH is provided, comprising:

[0095] a processor; a memory for storing processor-executable instructions;

[0096] The processor is configured to perform the communication method for PUSCH in the second aspect or any one of the implementation manners of the second aspect.

[0097] According to a seventh aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions in the storage medium are executed by a processor of a network device, the network device can perform the communication method for PUSCH in the first aspect or any one of the implementation manners of the first aspect.

[0098] According to an eighth aspect of the embodiments of the present disclosure, a storage medium is provided, and the storage medium stores instructions, when the instructions in the storage medium are executed by a processor of a terminal, the terminal performs the communication method for PUSCH in the second aspect or any one of the implementation manners of the second aspect.

[0099] The technical solutions provided by the embodiments of the present disclosure can include the following beneficial effects: in the case that a terminal is configured with multiple SRS resource sets corresponding to multiple cooperating TRPs respectively, a network device sends a first activation indication. The first activation indication is used to configure the terminal to independently send PUSCH facing a single TRP or to cooperatively send PUSCH facing multiple TRPs in the multiple cooperating TRPs. By activating a single TRP or multiple TRPs, dynamic switching between a single TRP and multiple TRPs in the process of sending PUSCH by the terminal is realized.

[0100] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0101] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure together with the specification.

[0102] Figure 1 is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0103] Figure 2 is a flowchart of a communication method for PUSCH according to an example embodiment.

[0104] Figure 3 is a flowchart of a communication method for PUSCH according to an example embodiment.

[0105] Figure 4 is a block diagram of a communication apparatus for PUSCH according to an example embodiment.

[0106] Figure 5 is a block diagram of a communication apparatus for PUSCH according to an example embodiment.

[0107] Figure 6 is a block diagram of an apparatus for PUSCH communication according to an example embodiment.

[0108] Figure 7 is a block diagram of an apparatus for PUSCH communication according to an example embodiment. DETAILED DESCRIPTION

[0109] The example embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals refer to like elements, unless the context of use indicates otherwise. The following description of example embodiments is not representative of all embodiments consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0110] The communication method for PUSCH provided by the embodiments of the present disclosure can be applied to Figure 1 a wireless communication system as shown in FIG. 1. Referring to Figure 1 , the wireless communication system includes a network device and a terminal. The terminal is connected to the network device through wireless resources and performs data transmission. The data transmission between the network device and the terminal is based on beams. The network device and the terminal can perform PUSCH uplink transmission enhancement based on Multi-TRP.

[0111] It can be understood that the number of TRPs for the network device to perform data transmission with the terminal based on Multi-TRP can be one or more. Figure 1 The network device performs data transmission with the terminal based on TRP1 and TRP2 in the wireless communication system as shown in FIG. 1 is only illustrative and is not limited thereto.

[0112] It can be further understood that Figure 1The illustrated wireless communication system only schematically illustrates the wireless communication system, and other network devices can also be included in the wireless communication system, for example, core network devices, wireless relay devices, wireless backhaul devices, and the like, which are not shown in the Figure 1 The number of network devices and the number of terminals included in the wireless communication system are not limited in the embodiments of the present disclosure.

[0113] It can be further understood that the wireless communication system of the embodiments of the present disclosure is a network that provides wireless communication functions. The wireless communication system can use 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 FDMA (SC-FDMA), carrier sense multiple access with collision avoidance (CSMA / CA). According to different network capacities, rates, latencies, and other factors, the network can be divided into 2G (English: generation) networks, 3G networks, 4G networks, or future evolution networks such as 5G networks. The 5G network can also be referred to as a new radio network (New Radio, NR). For the convenience of description, the wireless communication network is sometimes referred to simply as a network in the present disclosure.

[0114] Further, the network device involved in the present disclosure can also be referred to as a wireless access network device. The wireless access network device can be a base station, an evolved node B (eNB), 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), a transmission and reception point (TRP), etc., and can also be a gNB in an NR system, or can also be a component or part of a device constituting a base station, etc. It should be understood that the specific technology and specific device form adopted by the network device in the embodiments of the present disclosure is not limited. In the present disclosure, the network device can provide communication coverage for a specific geographic area, and can communicate with terminals located in the coverage area (cell). In addition, when it is a vehicle-to-everything (V2X) communication system, the network device can also be a vehicle-mounted device.

[0115] Further, the terminal involved in the present disclosure can also be referred to as a terminal device, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), etc., which is a device that provides voice and / or data connectivity for a user, for example, a terminal can be a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: a mobile phone, a customer premise equipment (CPE), a pocket personal computer (PPC), a palm computer, a personal digital assistant (PDA), a notebook computer, a tablet computer, a wearable device, or a vehicle-mounted device, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device can also be a vehicle-mounted device. It should be understood that the specific technology and specific device form adopted by the terminal in the embodiments of the present disclosure is not limited.

[0116] In the present disclosure, the network device and the terminal perform data transmission based on beams. Among them, the network device and the terminal can perform PUSCH uplink transmission enhancement based on Multi-TRP. At present, the main PUSCH transmission is based on single DCI control. The main scheme of PUSCH transmission based on single DCI control is to use two independent SRI fields in DCI 0_1 / 0_2 to respectively correspond to the SRI indication of different TRPs, which is used to control the transmission of PUSCH facing different TRPs.

[0117] In the related art, the uplink transmission scheme of PUSCH includes a codebook-based uplink transmission and a non-codebook-based uplink transmission scheme.

[0118] In the NR system, the network device can configure at most one SRS resource set for the terminal for codebook-based uplink transmission, and achieve by configuring one SRS resource set as a codebook. When the network device schedules PUSCH through DCI format 0_1, and the network device configures two SRS resources for codebook-based uplink transmission for the terminal, the terminal determines the precoding and the number of transmission streams of PUSCH according to the SRI and the TPMI / TRI indication, and maps the data stream to the port of the SRS resource indicated by the SRI through the determined precoding for transmission. The SRI and the TPMI / TRI indication are respectively the SRS resource indicator and the precoding information and the number of layers in the DCI. When the SRI exists, the SRI can only indicate one SRS resource in the multiple SRS resources configured by the network device for codebook-based uplink transmission for the terminal. When the network device schedules PUSCH through DCI format 0_1, and the network device only configures one SRS resource for codebook-based uplink transmission for the terminal, there is no SRI indication.

[0119] The data in the uplink transmission of the terminal needs to be precoded using the PMI and the RI indicated by the network side, and the precoded data is mapped to the corresponding antenna port according to the spatial filter (Spatial Relation Info) corresponding to the SRS resource indicated by the SRI. Wherein, the RI is also called data layer number indication or transmission layer number indication. Those skilled in the art should understand the consistency of its meaning.

[0120] The indication method of SRI for multiple SRS resources is given in Table 1. Table 2 gives the signaling indication method of TPMI and RI for single-layer transmission respectively for 4 antenna ports, and indicates different UE capabilities respectively. Here, the UE capability is divided into three types: full correlation, partial correlation and non-correlation, which represents the correlation capability of the antenna port. Table 3 corresponds to the code word of 4 antenna port single-layer transmission.

[0121] Table 1

[0122] Bit field mapped to index [SRI(s),N SRS =2]]> 0 0 1 1

[0123] Table 2

[0124]

[0125] Table 3

[0126]

[0127] In the NR system, the network device can configure at most one SRS resource set for the terminal for non-codebook-based uplink transmission, which is implemented by configuring one SRS resource set as non-codebook. For non-codebook-based uplink transmission, the terminal sends the network device a capability of a maximum number of SRS resources that can be simultaneously transmitted. The resource set can be configured with at most 4 SRS resources, and each SRS resource contains 1 SRS port. The network device can indicate one or more SRS resources to the terminal through SRI for determination of PUSCH precoding, and the number of SRS resources corresponding to the SRI is the number of streams of PUSCH transmission. When the network device only configures one SRS resource for the terminal for non-codebook-based uplink transmission, SRI is not included in DCI format 0_1, and the terminal determines the precoding of PUSCH according to the configured SRS resource.

[0128] The following is a table of SRI indication corresponding to non-codebook and codebook transmission in the protocol.

[0129] Table 4

[0130]

[0131] Table 5

[0132]

[0133] Table 6

[0134]

[0135] Table 7

[0136]

[0137] Table 8

[0138] Bit field mapped to index [SRI(s),N SRS = 2]] 0 0 1 1

[0139] Table 9

[0140] Bit field mapped to index [SRI(s),N SRS = 3]] 0 0 1 1 2 2 3 Reserved

[0141] Table 10

[0142] Bit field mapped to index [SRI(s),N SRS = 4]] 0 0 1 1 2 2 3 3

[0143] The above communication method for PUSCH, whether codebook-based or non-codebook-based, can be based on Multi-TRP for PUSCH enhancement. The main solution currently based on single DCI control PUSCH transmission is to use two independent SRI fields in DCI 0_1 / 0_2 to respectively correspond to SRI indication facing different TRPs, which is used to control the transmission of PUSCH facing different TRPs. For multi-TRP PUSCH transmission enhancement based on single DCI, dynamic switching between single TRP and multi-TRP needs to be supported, so as to better adapt to the transmission scenario and actual channel situation. For example, when PUSCH transmission is based on multi-TRP, according to the actual channel and service situation, the network device can quickly schedule the single-TRP transmission of this time through signaling. Further, in the case of single-TRP transmission, it is necessary to support flexible indication of which TRP the PUSCH is specifically transmitted to.

[0144] In related technologies, the TRP to which the PUSCH is transmitted can be indicated based on SRI or TPMI. However, when using the SRI field to indicate whether the current TRP is activated for use, a reserved codepoint can be used for indication. However, in the case of many SRIs, there is no corresponding reserved codepoint in the corresponding SRI table. And in the case of codebook-based, when using the TPMI field to indicate whether the current TRP is activated for use, a reserved codepoint can be used for indication. However, in the case of many TPMIs, there is no corresponding reserved codepoint in the corresponding TPMI table.

[0145] Therefore, the embodiments of the present disclosure provide a communication method for PUSCH. In the case where a terminal is configured with a plurality of SRS resource sets respectively corresponding to a plurality of cooperating TRPs, an activation indication is sent by a network device to configure the terminal to independently transmit PUSCH to a single TRP or to cooperatively transmit PUSCH to a plurality of TRPs among the plurality of cooperating TRPs, thereby realizing dynamic switching between single TRP and multi-TRP.

[0146] For the convenience of description, the activation indication sent by the network device in the embodiments of the present disclosure is referred to as a first activation indication.

[0147] Figure 2is a flowchart of a communication method for PUSCH according to an exemplary embodiment, as shown in Figure 2 The communication method for PUSCH includes the following steps.

[0148] In step S11, a first activation indication is sent in response to the terminal being configured with multiple SRS resource sets respectively corresponding to multiple cooperating TRPs.

[0149] The first activation indication is used to indicate a PUSCH transmission mode associated with the TRP, and the PUSCH transmission mode includes the terminal independently transmitting PUSCH facing a single TRP or cooperatively transmitting PUSCH facing multiple TRPs.

[0150] In the embodiments of the present disclosure, the terminal can be configured to independently transmit PUSCH facing a single TRP or cooperatively transmit PUSCH facing multiple TRPs among the multiple cooperating TRPs configured for the terminal.

[0151] In the embodiments of the present disclosure, when the network device configures the terminal with multiple SRS resource sets respectively corresponding to multiple cooperating TRPs, the network device sends a first activation indication to activate the terminal to independently transmit PUSCH facing a single TRP or cooperatively transmit PUSCH facing multiple TRPs among the multiple cooperating TRPs, thereby realizing dynamic switching between single TRP and multiple TRPs.

[0152] In the embodiments of the present disclosure, the terminal can receive the first activation indication and transmit PUSCH independently facing a single TRP activated by the first activation indication or cooperatively facing multiple TRPs activated by the first activation indication.

[0153] Figure 3 is a flowchart of a communication method for PUSCH according to an exemplary embodiment, as shown in Figure 3 The communication method for PUSCH includes the following steps.

[0154] In step S21, a first activation indication is received, and the first activation indication is used to indicate a PUSCH transmission mode associated with the TRP, and the PUSCH transmission mode includes the terminal independently transmitting PUSCH facing a single TRP or cooperatively transmitting PUSCH facing multiple TRPs.

[0155] In step S22, PUSCH is independently transmitted facing a single TRP activated by the first activation indication or cooperatively transmitted facing multiple TRPs activated by the first activation indication.

[0156] In the embodiments of the present disclosure, the terminal receives a first activation indication for activating a single TRP or multiple TRPs sent by the network device, so that the terminal can transmit the PUSCH based on a single TRP or multiple TRPs, and realize dynamic switching between single TRP and multiple TRPs.

[0157] In the communication method for PUSCH provided by the embodiments of the present disclosure, the multiple cooperating TRPs configured by the network device for the terminal are extended in multiple indication domains compared with the single TRP. In an implementation, the first activation indication can be carried by a medium access control (MAC) control element (CE). That is, the MAC-CE is used to indicate whether the subsequent scheduling is for S-TRP or M-TRP. The terminal selects the corresponding number of carrying bits in DCI0_1 / 0_2 based on the indication of the MAC CE to perform blind detection of the PDCCH.

[0158] In the communication method for PUSCH provided by the embodiments of the present disclosure, one or more SRS resource sets can be activated by the MAC CE, and each SRS resource set is associated with a different TRP. That is, one or more SRS resource sets configured for the terminal can be activated by the MAC CE.

[0159] In the communication method for PUSCH provided by the embodiments of the present disclosure, the MAC CE activates one or more SRS resource sets in at least one of the following ways:

[0160] Method one: indicating the identity of one or more SRS resource sets. For example, the identity of the activated one or more SRS resource sets can be informed.

[0161] Method two: indicating one or more SRS resource sets by a bit map (BITMAP). That is, the activated SRS resource set is indicated by the BITMAP.

[0162] Method three: indicating one or more SRS resource sets by a code point. That is, the activated SRS resource set is indicated by the code point.

[0163] Of course, in the communication method for PUSCH provided by the embodiments of the present disclosure, the implementation of the MAC CE activating the SRS resource set is not limited to the above-mentioned methods, and other methods can also be used.

[0164] In the method for PUSCH communication provided by the embodiments of the present disclosure, the TRP cooperative transmission state of the PUSCH can be indicated by a MAC CE. The TRP cooperative transmission state includes independent transmission of the PUSCH facing a single TRP or cooperative transmission of the PUSCH facing multiple TRPs. That is, in the embodiments of the present disclosure, the S-TRP or M-TRP transmission state can be indicated by the MAC-CE. The specific transmission state of the terminal is indicated by the MAC-CE, that is, whether the subsequent transmission is in the S-TRP state or the M-TRP state. The SRS resource set corresponding to which TRP can be further selected and scheduled by the physical layer.

[0165] In another embodiment of the method for PUSCH communication provided by the embodiments of the present disclosure, a first activation indication can be carried by a group-common (GC)-DCI. That is, in the embodiments of the present disclosure, the TRP cooperative transmission state of the PUSCH can be indicated by the GC-DCI, that is, the subsequent S-TRP transmission state or M-TRP transmission state of the PUSCH is indicated by the GC-DCI.

[0166] In the method for PUSCH communication provided by the embodiments of the present disclosure, the GC-DCI includes an information field for indicating the TRP cooperative transmission state of the PUSCH, which is referred to as a first information field. The first information field is used to indicate the TRP cooperative transmission state of the PUSCH. The TRP cooperative transmission state includes independent transmission of the PUSCH facing a single TRP (S-TRP transmission state) or cooperative transmission of the PUSCH facing multiple TRPs (M-TRP transmission state).

[0167] In one embodiment, in response to the TRP cooperative transmission state including independent transmission of the PUSCH facing a single TRP, the first information field is used to indicate the activated SRS resource set, and the activated SRS resource set is associated with the PUSCH transmission of the TRP facing the PUSCH.

[0168] In another embodiment, in response to the TRP cooperative transmission state including cooperative transmission of the PUSCH facing multiple TRPs, the first information field is used to indicate at least one of the following: cooperative transmission state facing multiple TRPs or cooperative transmission order indicating different PUSCH transmission occasions facing multiple TRPs; correspondence between the transmission parameter indication field and the PUSCH transmission facing different TRPs; and association between the SRS resource set and the corresponding PUSCH transmission facing different TRPs.

[0169] In an example, when the GC-DCI indicates the TRP cooperation transmission state as S-TRP or M-TRP, the GC-DCI corresponds to one or two DCI fields. And the TRP ordering can be redefined in the DCI, that is, the corresponding TRP is flipped.

[0170] In the embodiments of the present disclosure, the network device can use the GC-DCI to inform each terminal of the transmission state (TRP cooperation transmission state) of the subsequent scheduling PUSCH of the terminal group using the same radio network temporary identifier (RNTI), that is, using a single TRP independent transmission PUSCH (S-TRP transmission state) or using a plurality of TRP cooperation transmission PUSCH (M-TRP transmission state).

[0171] In an example, the embodiments of the present disclosure can define 1 bit in the GC-DCI to indicate whether the scheduling is S-TRP transmission or M-TRP transmission. For example, in Table 11, “0” represents S-TRP, and “1” represents M-TRP.

[0172] Table 11

[0173] Bit field mapped to index Transmission state 0 S-TRP 1 M-TRP

[0174] Referring to Table 12, if 2 is indicated, it represents m-TRP transmission. If 0 is indicated, it represents single TRP transmission and TRP1 is used.

[0175] Table 12

[0176] Bit field mapped to index Transmission state 0 TRP 1 1 TRP 2 2 M-TRP 3 Reserved

[0177] Further, in the embodiments of the present disclosure, the GC-DCI can also specifically indicate the corresponding activated SRS resource set, and the activated SRS resource set is associated with the PUSCH transmission of the TRP facing the PUSCH. For example, in Table 13, the GC-DCI is defined to include the activated TRP indication information. If 2 is indicated, it represents m-TRP transmission. Among the enhanced fields in the DCI, the first corresponds to SRS resource set 1 (TRP1), and the second corresponds to SRS resource set 2 (TRP2). If 3 is indicated, it represents m-TRP transmission, and among the enhanced fields in the DCI, the first corresponds to SRS resource set 2 (TRP2), and the second corresponds to SRS resource set 1 (TRP1). If 0 is indicated, it represents single TRP transmission and TRP1 is used.

[0178] Table 13

[0179] Bit field mapped to index Transmission state 0 TRP 1 1 TRP 2 2 M-TRP(TRP1 & TRP2) 3 M-TRP(TRP2 & TRP1)

[0180] In the embodiments of the present disclosure, the TRP cooperative transmission state of the PUSCH is indicated by the GC-DCI, that is, the subsequent S-TRP transmission state or M-TRP transmission state of the PUSCH is indicated by the GC-DCI. The network device subsequently schedules the PUSCH according to the selected transmission mode, and the terminal performs blind detection of the PDCCH according to the corresponding number of bearing bits in the selected DCI0_1 / 0_2.

[0181] In another implementation form of the communication method for the PUSCH provided by the embodiments of the present disclosure, the first activation indication can be indicated by an independent indication field carried on the DCI.

[0182] In an implementation form, the embodiments of the present disclosure can add a DCI field in the DCI for indicating the TRP cooperative transmission state of the PUSCH. For example, a DCI field is added in the DCI0-1 / 0-2 supporting multi-TRP transmission for indicating whether it is S-TRP or M-TRP. For the convenience of description, the added DCI field in the DCI is referred to as a first DCI field. The first DCI field is used for indicating the TRP cooperative transmission state of the PUSCH. The TRP cooperative transmission state includes independent transmission of the PUSCH facing a single TRP or cooperative transmission of the PUSCH facing multiple TRPs.

[0183] In an example, the DCI is defined as 1 bit for indicating whether the scheduling is S-TRP transmission or M-TRP transmission. For example, in Table 14, “0” represents S-TRP, and “1” represents M-TRP.

[0184] Table 14

[0185] Bit field mapped to index Transmission state 0 S-TRP 1 M-TRP

[0186] Further, in the communication method for the PUSCH provided by the embodiments of the present disclosure, the TRP indicated in the first DCI field has a corresponding relationship with at least one of the SRI, TPMI and TPC signaling. In the embodiments of the present disclosure, after the terminal obtains the information corresponding to the DCI including the first DCI field, the information can be further used for demodulation of the SRI / TPMI / TPC field, for example, the first SRI / TPMI / TPC field is enabled by default.

[0187] In the communication method for the PUSCH provided by the embodiments of the present disclosure, in response to the TRP cooperative transmission state including independent transmission of the PUSCH facing a single TRP, the first DCI field is used for indicating the activated TRP. That is, the DCI defines the indication information of the activated TRP.

[0188] In an example, as shown in Table 15, if the first DCI field indicates 2, it represents that the transmission is m-TRP. If the first DCI field indicates 0, it represents that the transmission is single-TRP transmission and TRP1 is used.

[0189] Table 15

[0190] Bit field mapped to index Transmission state 0 TRP 1 1 TRP 2 2 M-TRP 3 Reserved

[0191] Further, in the communication method for PUSCH provided by the embodiments of the present disclosure, the TRP indicated in the first DCI field has a corresponding relationship with at least one of the SRI, the TPMI, and the TPC signaling. After the terminal obtains the information corresponding to the DCI including the first DCI field, the terminal can further be used for demodulation of the SRI / TPMI / TPC field, such as the first SRI / TPMI / TPC field.

[0192] The communication method for PUSCH provided by the embodiments of the present disclosure includes: in response to the TRP cooperative transmission state including multiple-TRP cooperative transmission PUSCH, the first DCI field can be used to indicate the multiple-TRP cooperative transmission state or have the indication of the cooperative transmission order of the multiple TRPs.

[0193] In an example, as shown in Table 16, if the first DCI field indicates 2, it represents that the transmission is m-TRP transmission. In the enhanced field in the DCI, the first corresponds to SRS resource set 1 (TRP1), and the second corresponds to SRS resource set 2 (TRP2). If the first DCI field indicates 3, it represents that the transmission is m-TRP transmission. In the enhanced field in the DCI, the first corresponds to SRS resource set 2 (TRP2), and the second corresponds to SRS resource set 1 (TRP1).

[0194] If the first DCI field indicates 0, it represents that the transmission is single-TRP transmission and TRP1 is used.

[0195] Table 16

[0196] Bit field mapped to index Transmission state 0 TRP 1 1 TRP 2 2 M-TRP(TRP1 & TRP2) 3 M-TRP(TRP2 & TRP1)

[0197] Further, in the communication method for PUSCH provided by the embodiments of the present disclosure, the TRP indicated in the first DCI field has a corresponding relationship with at least one of the SRI, the TPMI, and the TPC signaling. After the terminal obtains the information corresponding to the DCI including the first DCI field, the terminal can further be used for demodulation of the SRI / TPMI / TPC field, such as the first SRI / TPMI / TPC field.

[0198] It can be understood that the communication method for PUSCH provided by the embodiments of the present disclosure is not limited to the above-mentioned manner for the specific implementation of the first activation indication to bear the process, and other existing DCI field redefinition and expansion can be used to indicate S-TRP or M-TRP. That is, the first activation indication is borne by the newly added or redefined DCI field in the DCI.

[0199] Further, in the embodiments of the present disclosure, the indication of S-TRP or M-TRP is realized by redefining / expanding other DCI fields, which can be used by the terminal for demodulation of SRI / TPMI / TPC fields after demodulating the information.

[0200] The communication method for PUSCH provided by the embodiments of the present disclosure solves the problems of supporting dynamic switching indication of multi-TRP transmission and single-TRP transmission in various cases, and supporting specific TRP activation indication at the same time, and further selectively supporting the function of realizing scheduling TRP flipping through the enhancement of MAC-CE command or DCI command.

[0201] It can be understood that the first indication information involved in the communication method for PUSCH provided by the embodiments of the present disclosure can be applied to the terminal alone, applied to the network device alone, or applied to the terminal and the network device for interaction to realize the implementation process of PUSCH transmission.

[0202] It should be noted that those skilled in the art can understand that the various embodiments / embodiments involved in the above-mentioned embodiments of the present disclosure can be used together, or can be used independently. Whether it is used alone or together with the foregoing embodiments, the implementation principle is similar. In the embodiments of the present disclosure, some embodiments are described as embodiments used together. Of course, those skilled in the art can understand that such example descriptions are not a limitation of the embodiments of the present disclosure.

[0203] Based on the same concept, the embodiments of the present disclosure also provide a communication device for PUSCH.

[0204] It can be understood that the communication device for PUSCH provided by the embodiments of the present disclosure comprises the corresponding hardware structure and / or software modules for executing each function in order to realize the above-mentioned functions. In combination with the units and algorithm steps of each example disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software driven 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 the embodiments of the present disclosure.

[0205] Figure 4 is a communication apparatus block diagram for PUSCH according to an exemplary embodiment. Referring to Figure 4 , the communication apparatus 100 for PUSCH includes a sending unit 101. Wherein, the communication apparatus 100 for PUSCH can be applied to a network device.

[0206] The sending unit 101 is configured to send a first activation indication in a case that a terminal is configured with a plurality of SRS resource sets respectively corresponding to a plurality of cooperating TRPs. The first activation indication is used to indicate a PUSCH transmission mode associated with a TRP, and the PUSCH transmission mode includes that the terminal independently transmits PUSCH facing a single TRP or cooperatively transmits PUSCH facing a plurality of TRPs.

[0207] In an implementation manner, the first activation indication is carried by a MAC CE.

[0208] In an implementation manner, the MAC CE is used to activate one or more SRS resource sets, and each SRS resource set is associated with a different TRP.

[0209] In an implementation manner, the MAC CE activates one or more SRS resource sets in at least one of the following ways:

[0210] Indicates the identity of one or more SRS resource sets. One or more SRS resource sets are indicated by a bit map. One or more SRS resource sets are indicated by a code point.

[0211] In an implementation manner, the MAC CE is used to indicate a TRP cooperative transmission state of PUSCH, and the TRP cooperative transmission state includes that PUSCH is independently transmitted facing a single TRP or cooperatively transmitted facing a plurality of TRPs.

[0212] In an implementation manner, the first activation indication is carried by a GC-DCI.

[0213] In an implementation manner, a first information field is included in the group common DCI, and the first information field is used to indicate a TRP cooperative transmission state of PUSCH, and the TRP cooperative transmission state includes that PUSCH is independently transmitted facing a single TRP or cooperatively transmitted facing a plurality of TRPs.

[0214] In an implementation manner, in response to the TRP cooperative transmission state including that PUSCH is independently transmitted facing a single TRP, the first information field is used to indicate a corresponding activated SRS resource set, and the activated SRS resource set is associated with PUSCH transmission of the TRP facing the PUSCH.

[0215] In an embodiment, in response to the TRP cooperative transmission state including the PUSCH facing the cooperative transmission of multiple TRPs, the first information field is used to indicate at least one of the following:

[0216] The cooperative transmission state facing multiple TRPs or having the cooperative transmission order indicating different PUSCH transmission occasions of multiple TRPs. The transmission parameter indication field has a corresponding relationship between the PUSCH transmission facing different TRPs. There is an association relationship between the SRS resource set and the corresponding PUSCH transmission facing different TRPs.

[0217] In an embodiment, the first activation indication is indicated by an independent indication field carried on the downlink control information (DCI).

[0218] In an embodiment, the first DCI field is included in the DCI, and the first DCI field is used to indicate the TRP cooperative transmission state of the PUSCH. The TRP cooperative transmission state includes the PUSCH facing independent transmission of a single TRP or the PUSCH facing cooperative transmission of multiple TRPs.

[0219] In an embodiment, in response to the TRP cooperative transmission state including the PUSCH facing independent transmission of a single TRP, the first DCI field is used to indicate the activated TRP.

[0220] In an embodiment, in response to the TRP cooperative transmission state including the PUSCH facing cooperative transmission of multiple TRPs, the first DCI field is used to indicate the cooperative transmission state of multiple TRPs or having the cooperative transmission order indicating multiple TRPs.

[0221] In an embodiment, the TRP indicated in the first DCI field has a corresponding relationship with at least one of the SRI, the precoding information (TPMI), and the TPC signaling.

[0222] In an embodiment, the first activation indication is carried by a newly added or redefined DCI field in the DCI.

[0223] Figure 5 is a block diagram of a communication device for PUSCH according to an exemplary embodiment. Referring to Figure 5 , the communication device for PUSCH 200 includes a receiving unit 201 and a sending unit 202. Wherein the communication device for PUSCH 200 can be applied to a terminal.

[0224] The receiving unit 201 is configured to receive a first activation indication, the first activation indication being used to indicate a PUSCH transmission mode associated with a TRP, the PUSCH transmission mode comprising that the terminal transmits the PUSCH independently facing a single TRP or cooperatively facing multiple TRPs. The transmitting unit 202 is configured to transmit the PUSCH independently facing the single TRP based on the single TRP activated by the first activation indication, or cooperatively facing the multiple TRPs based on the multiple TRPs activated by the first activation indication.

[0225] In an implementation form, the first activation indication is carried by a MAC CE.

[0226] In an implementation form, the MAC CE is used to activate one or more SRS resource sets, each SRS resource set being associated with a different TRP.

[0227] In an implementation form, the MAC CE activates the one or more SRS resource sets in at least one of the following ways:

[0228] an identity of the one or more SRS resource sets.

[0229] by a bitmap.

[0230] by a codepoint.

[0231] In an implementation form, the MAC CE is used to indicate a TRP cooperative transmission state of the PUSCH, the TRP cooperative transmission state comprising that the PUSCH is transmitted independently facing a single TRP or cooperatively facing multiple TRPs.

[0232] In an implementation form, the first activation indication is carried by a group common downlink control information, GC-DCI.

[0233] In an implementation form, the GC-DCI comprises a first information field, the first information field being used to indicate the TRP cooperative transmission state of the PUSCH, the TRP cooperative transmission state comprising that the PUSCH is transmitted independently facing a single TRP or cooperatively facing multiple TRPs.

[0234] In an implementation form, in response to the TRP cooperative transmission state comprising that the PUSCH is transmitted independently facing a single TRP, the first information field is used to indicate a corresponding activated SRS resource set, the activated SRS resource set being associated with a PUSCH transmission of the PUSCH facing the TRP.

[0235] In an implementation form, in response to the TRP cooperative transmission state comprising that the PUSCH is cooperatively transmitted facing multiple TRPs, the first information field is used to indicate at least one of:

[0236] The cooperation transmission state for multiple TRPs or the cooperation transmission sequence with indication of different PUSCH transmission occasions for multiple TRPs. The transmission parameter indication field has a correspondence relationship with the PUSCH transmission for different TRPs. The SRS resource set and the corresponding PUSCH transmission for different TRPs have an association relationship.

[0237] In an implementation, the first activation indication is indicated by a separate indication field carried on a downlink control information (DCI).

[0238] In an implementation, the DCI includes a first DCI field, and the first DCI field is used to indicate a TRP cooperation transmission state of the PUSCH, and the TRP cooperation transmission state includes transmitting the PUSCH through independent transmission for a single TRP or cooperation transmission for multiple TRPs.

[0239] In an implementation, in response to the TRP cooperation transmission state including transmitting the PUSCH through independent transmission for a single TRP, the first DCI field is used to indicate an activated TRP.

[0240] In an implementation, in response to the TRP cooperation transmission state including cooperation transmission for multiple TRPs, the first DCI field is used to indicate a cooperation transmission state for multiple TRPs or a cooperation transmission sequence with indication of multiple TRPs.

[0241] In an implementation, the TRP indicated in the first DCI field has a correspondence relationship with at least one of SRI, precoding information (TPMI), and TPC signaling.

[0242] As to the apparatus in the above embodiments, the specific manners in which various modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0243] Figure 6 is a block diagram of an apparatus for PUSCH transmission according to an exemplary embodiment. For example, the apparatus 300 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

[0244] Referring to Figure 6 , the apparatus 300 can include one or more of the following components: a processing component 302, a memory 304, a power supply component 306, a multimedia component 308, an audio component 310, an input / output (I / O) interface 312, a sensor component 314, and a communication component 316.

[0245] The processing component 302 generally controls the overall operations of the device 300, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 302 can include one or more processors 320 to execute instructions delivered from the memory 304 to complete all or part of the steps of the methods described above. In addition, the processing component 302 can include one or more modules to facilitate the interaction between the processing component 302 and other components. For example, the processing component 302 can include a multimedia module to facilitate the interaction between the multimedia component 308 and the processing component 302.

[0246] The memory 304 is configured to store various types of data to support operations of the device 300. Examples of these data include instructions for any application or method operating on the device 300, contact data, phonebook data, messages, pictures, videos, and the like. The memory 304 can be implemented by any type of volatile or non-volatile storage 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), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk, or optical disk.

[0247] The power component 306 provides power to the various components of the device 300. The power component 306 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 300.

[0248] The multimedia component 308 includes a screen providing an output interface between the device 300 and a user. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes the touch panel, the screen can be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense a touch, a slide, and a gesture on the touch panel. The touch sensors can not only sense a boundary of a touching or sliding action, but also detect duration and pressure related to the touching or sliding action. In some embodiments, the multimedia component 308 includes a front camera and / or a back camera. The front camera and / or the back camera can receive external multimedia data when the device 300 is in an operation mode, such as a shooting mode or a video mode. Each of the front and back cameras can be a fixed optical lens system or have a focal length and optical zoom capability.

[0249] The audio component 310 is configured to output and / or input audio signals. For example, the audio component 310 includes a microphone (MIC) that is configured to receive an external audio signal when the device 300 is in an operation mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal can be further stored in the memory 304 or transmitted via the communication component 316. In some embodiments, the audio component 310 also includes a speaker for outputting audio signals.

[0250] The I / O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which can include a keypad, a click wheel, buttons, and so on. The buttons can include, but are not limited to, a home button, a volume button, a start button, and a lock button.

[0251] The sensor component 314 includes one or more sensors for providing status assessments of various aspects of the device 300. For example, the sensor component 314 can detect an open / closed position of the device 300, relative positioning of components, such as a display and a keypad of the device 300, a change of position of the device 300 or a component of the device 300, presence or absence of user contact with the device 300, changes in orientation or acceleration / deceleration

[0252] The communication component 316 is configured to facilitate wired or wireless communication between the device 300 and other devices. The device 300 can access a wireless network based on a corresponding communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an example embodiment, the communication component 316 receives broadcast signals or broadcast-related information from external broadcast management systems via a broadcast channel. In an example embodiment, the communication component 316 also includes a Near Field Communication (NFC) module to promote short-range communication. For example, the NFC module can be implemented based on Radio Frequency Identification (RFID) techniques, infrared data association (IrDA) techniques, ultra-wideband (UWB) techniques, Bluetooth (BT) techniques, and other techniques.

[0253] In an exemplary embodiment, the apparatus 300 can be implemented using 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, micro-controllers, microprocessors or other electronic elements, for performing the above methods.

[0254] In an exemplary embodiment, a non-transitory computer readable storage medium including instructions, such as the memory 304 including instructions, is also provided, which can be executed by the processor 320 of the apparatus 300 to complete the above methods. For example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc.

[0255] Figure 7 is a block diagram of an apparatus for PUSCH transmission according to an exemplary embodiment. For example, the apparatus 400 can be provided as a network device. Referring to Figure 7 , the apparatus 400 includes a processing component 422, which further includes one or more processors, and a memory resource represented by a memory 432 for storing instructions, such as application programs, executable by the processing component 422. The application programs stored in the memory 432 can include one or more than one module each corresponding to a set of instructions. In addition, the processing component 422 is configured to execute the instructions to perform the above methods.

[0256] The apparatus 400 can also include a power supply component 426 configured to perform power management of the apparatus 400, a wired or wireless network interface 450 configured to connect the apparatus 400 to a network, and an input / output (I / O) interface 458. The apparatus 400 can operate based on an operating system stored in the memory 432, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

[0257] In an example embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 432 comprising instructions, is also provided, which can be executed by the processing component 422 of the apparatus 400 to complete the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disc, and an optical data storage device, etc. It can be further understood that "a plurality of" in the present disclosure means two or two or more, and other quantifiers are similar thereto. The association relationship of "and / or" describing the associated objects means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. The character " / " generally represents that the associated objects before and after it are in an "or" relationship. The singular forms "a", "said" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0258] It can be further understood that the terms "first", "second", and the like are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a particular order or importance. In fact, the expressions "first", "second", and the like can be used interchangeably. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the present disclosure.

[0259] It can be further understood that although the operations are described in a specific order in the accompanying drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order or in a serial order, or requiring all the shown operations to be performed to obtain the desired results. In a specific environment, multi-tasking and parallel processing can be advantageous.

[0260] Other embodiments of the present disclosure will be apparent to those skilled in the art upon consideration of the specification and practice of the concepts disclosed herein. The application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the application pertains. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0261] It should be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes can be made without departing from its scope. The scope of the present 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 a network device, the communication method for PUSCH includes: In response to configuring a plurality of SRS resource sets respectively corresponding to coordinated transmission and reception points TRP for the terminal, sending a first activation indication; The first activation indication is used to indicate a PUSCH transmission mode associated with the multiple coordinated transmission and reception points TRPs, where the PUSCH transmission mode includes the terminal independently transmitting a PUSCH to a single TRP or collaboratively transmitting a PUSCH to multiple TRPs; The first activation indication is indicated by an independent indication field carried in downlink control information DCI, the DCI includes a sounding reference signal resource indication SRI field, and the independent indication field is a newly added or redefined DCI field in the DCI; The DCI includes a first DCI field, where the first DCI field is used to indicate a TRP coordinated transmission state of the PUSCH, where the TRP coordinated transmission state includes independent transmission of the PUSCH for a single TRP or coordinated transmission of the PUSCH for multiple TRPs; In which, in response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first DCI domain is used to indicate the activated TRP.

2. The communication method for PUSCH according to claim 1, characterized in that The first activation indication is carried by a media access control element MAC CE.

3. The communication method for PUSCH according to claim 2, characterized in that The MAC CE is used to activate one or more SRS resource sets, each SRS resource set is associated with a different TRP.

4. The communication method for PUSCH according to claim 3, characterized in that The MAC CE activates one or more SRS resource sets in at least one of the following ways: an identifier indicating the one or more SRS resource sets; Indicating the one or more SRS resource sets by a bitmap; The one or more SRS resource sets are indicated by code points.

5. The communication method for PUSCH according to claim 2, characterized in that The MAC CE is used to indicate the TRP collaborative transmission status of the PUSCH, and the TRP collaborative transmission status includes independent transmission of the PUSCH to a single TRP or collaborative transmission of the PUSCH to multiple TRPs.

6. The communication method for PUSCH according to claim 1, characterized in that The first activation indication is carried by packet general downlink control information GC-DCI.

7. The communication method for PUSCH according to claim 6, characterized in that The packet universal DCI includes a first information field, which is used to indicate the TRP collaborative transmission status of PUSCH. The TRP collaborative transmission status includes independent transmission of PUSCH to a single TRP or collaborative transmission of PUSCH to multiple TRPs.

8. The communication method for PUSCH according to claim 7, characterized in that In response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first information field is used to indicate the corresponding activated SRS resource set, and the activated SRS resource set is associated with the PUSCH transmission of the TRP facing the PUSCH.

9. The communication method for PUSCH according to any one of claims 6 to 8, characterized in that: In response to the TRP coordinated transmission state including coordinated transmission of a PUSCH for multiple TRPs, the first information field included in the DCI is used to indicate at least one of the following: Coordinated transmission state for multiple TRPs or coordinated transmission order indicating different PUSCH transmission opportunities for multiple TRPs; The correspondence between the transmission parameter indication field and PUSCH transmission for different TRPs; There is an association between the SRS resource set and the corresponding PUSCH transmission for different TRPs.

10. The communication method for PUSCH according to claim 1, characterized in that: In response to the TRP collaborative transmission status including PUSCH for collaborative transmission of multiple TRPs, the first DCI domain is used to indicate multiple TRP collaborative transmission states or has a collaborative transmission order indicating multiple TRPs.

11. The communication method for PUSCH according to claim 1, characterized in that: There is a corresponding relationship between the TRP indicated in the first DCI field included in the DCI and at least one signaling of SRI, precoding information TPMI and TPC.

12. A communication method for a physical uplink shared channel (PUSCH), characterized in that: Applied to a terminal, the communication method for PUSCH includes: Receive a first activation indication, where the first activation indication is used to indicate a PUSCH transmission mode associated with multiple coordinated transmission reception points (TRPs), where the PUSCH transmission mode includes the terminal independently transmitting a PUSCH to a single TRP or collaboratively transmitting a PUSCH to multiple TRPs; Independently transmit a PUSCH based on a single TRP activated by the first activation indication, or collaboratively transmit a PUSCH to multiple TRPs based on multiple TRPs activated by the first activation indication; The first activation indication is indicated by an independent indication field carried in downlink control information DCI, the DCI includes a sounding reference signal resource indication SRI field, and the independent indication field is a newly added or redefined DCI field in the DCI; The DCI includes a first DCI field, where the first DCI field is used to indicate a TRP coordinated transmission state of the PUSCH, where the TRP coordinated transmission state includes independent transmission of the PUSCH for a single TRP or coordinated transmission of the PUSCH for multiple TRPs; In which, in response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first DCI domain is used to indicate the activated TRP.

13. The communication method for PUSCH according to claim 12, characterized in that: The first activation indication is carried by a media access control element MAC CE.

14. The communication method for PUSCH according to claim 13, characterized in that: The MAC CE is used to activate one or more SRS resource sets, each SRS resource set is associated with a different TRP.

15. The communication method for PUSCH according to claim 14, characterized in that: The MAC CE activates one or more SRS resource sets in at least one of the following ways: an identifier indicating the one or more SRS resource sets; Indicating the one or more SRS resource sets by a bitmap; The one or more SRS resource sets are indicated by code points.

16. The communication method for PUSCH according to claim 13, characterized in that: The MAC CE is used to indicate the TRP collaborative transmission status of the PUSCH, and the TRP collaborative transmission status includes independent transmission of the PUSCH to a single TRP or collaborative transmission of the PUSCH to multiple TRPs.

17. The communication method for PUSCH according to claim 12, characterized in that: The first activation indication is carried by packet general downlink control information GC-DCI.

18. The communication method for PUSCH according to claim 17, characterized in that: The packet universal DCI includes a first information field, which is used to indicate the TRP collaborative transmission status of PUSCH. The TRP collaborative transmission status includes independent transmission of PUSCH to a single TRP or collaborative transmission of PUSCH to multiple TRPs.

19. The communication method for PUSCH according to claim 18, characterized in that: In response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first information field is used to indicate the corresponding activated SRS resource set, and the activated SRS resource set is associated with the PUSCH transmission of the TRP facing the PUSCH.

20. The communication method for PUSCH according to any one of claims 17 to 19, characterized in that: In response to the TRP coordinated transmission state including coordinated transmission of a PUSCH for multiple TRPs, the first information field included in the DCI is used to indicate at least one of the following: Coordinated transmission state for multiple TRPs or coordinated transmission order indicating different PUSCH transmission opportunities for multiple TRPs; The correspondence between the transmission parameter indication field and PUSCH transmission for different TRPs; There is an association between the SRS resource set and the corresponding PUSCH transmission for different TRPs.

21. The communication method for PUSCH according to claim 12, characterized in that: In response to the TRP collaborative transmission status including PUSCH for collaborative transmission of multiple TRPs, the first DCI domain is used to indicate multiple TRP collaborative transmission states or has a collaborative transmission order indicating multiple TRPs.

22. The communication method for PUSCH according to claim 12, characterized in that: There is a corresponding relationship between the TRP indicated in the first DCI field included in the DCI and at least one signaling of SRI, precoding information TPMI and TPC.

23. A communication device for a physical uplink shared channel (PUSCH), characterized in that: The communication device for PUSCH includes: A sending unit, configured to send a first activation indication when a plurality of SRS resource sets respectively corresponding to coordinated transmission and reception points TRP are configured for the terminal; The first activation indication is used to indicate a PUSCH transmission mode associated with the multiple coordinated transmission and reception points TRPs, where the PUSCH transmission mode includes independent transmission of a PUSCH for a single TRP or coordinated transmission of a PUSCH for multiple TRPs; The first activation indication is indicated by an independent indication field carried in downlink control information DCI, the DCI includes a sounding reference signal resource indication SRI field, and the independent indication field is a newly added or redefined DCI field in the DCI; The DCI includes a first DCI field, where the first DCI field is used to indicate a TRP coordinated transmission state of the PUSCH, where the TRP coordinated transmission state includes independent transmission of the PUSCH for a single TRP or coordinated transmission of the PUSCH for multiple TRPs; In which, in response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first DCI domain is used to indicate the activated TRP.

24. A communication device for a physical uplink shared channel (PUSCH), characterized in that: The communication device for PUSCH includes: A receiving unit is configured to receive a first activation indication, where the first activation indication is used to indicate a PUSCH transmission mode associated with multiple coordinated transmission reception points (TRPs), where the PUSCH transmission mode includes the terminal independently transmitting the PUSCH to a single TRP or collaboratively transmitting the PUSCH to multiple TRPs; a transmitting unit, configured to independently transmit a PUSCH based on a single TRP activated by the first activation indication, or to collaboratively transmit a PUSCH to multiple TRPs based on multiple TRPs activated by the first activation indication; The first activation indication is indicated by an independent indication field carried in downlink control information DCI, the DCI includes a sounding reference signal resource indication SRI field, and the independent indication field is a newly added or redefined DCI field in the DCI; The DCI includes a first DCI field, where the first DCI field is used to indicate a TRP coordinated transmission state of the PUSCH, where the TRP coordinated transmission state includes independent transmission of the PUSCH for a single TRP or coordinated transmission of the PUSCH for multiple TRPs; In which, in response to the TRP collaborative transmission state, PUSCH is independently transmitted to a single TRP, and the first DCI domain is used to indicate the activated TRP.

25. A communication device for a physical uplink shared channel (PUSCH), characterized in that: include: processor; a memory for storing processor-executable instructions; The processor is configured to: execute the communication method for PUSCH described in any one of claims 1 to 11 or execute the communication method for PUSCH described in any one of claims 12 to 22.

26. A storage medium, characterized in that The storage medium stores instructions. When the instructions in the storage medium are executed by the processor of the network device, the network device is enabled to execute the communication method for PUSCH described in any one of claims 1 to 11, or when the instructions in the storage medium are executed by the processor of the terminal, the terminal executes the communication method for PUSCH described in any one of claims 12 to 22.

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