A physical uplink shared channel transmission method, device and storage medium

Abstract

This disclosure relates to a Physical Uplink Shared Channel (PUSCH) transmission method, apparatus, and storage medium. The PUSCH transmission method is executed by a terminal and includes: determining the SFN transmission mode and transmitting PUSCH based on a single TRP or multiple TRP SFN mode, using the SRS resource set indication field in the SCI. This allows for dynamic switching between single and multiple TRP modes, better adapting to different terminals.

Description

Technical Field

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

[0002] Uplink physical uplink shared channel (PUSCH) transmissions can be transmitted to the Transmission Reception Point (TRP) of multiple network devices.

[0003] In related technologies, time division multiplexing (TDM) is used to enable terminals to transmit PUSCH to multiple TRPs. However, terminals using the TDM scheme are not required to have the ability to transmit beams simultaneously. That is, the terminal can have only one antenna panel.

[0004] For terminals with multiple antenna panels, how to achieve dynamic switching between a single TRP and multiple TRPs is still under discussion. Summary of the Invention

[0005] To overcome the problems existing in related technologies, this disclosure provides a PUSCH transmission method, apparatus and storage medium.

[0006] According to a first aspect of the present disclosure, a PUSCH transmission method is provided, the method being executed by a terminal, the terminal supporting simultaneous uplink transmission of STxMP via multiple antenna panels, the method comprising: determining a transmission mode for PUSCH configuration using a single-frequency network (SFN) transmission mode; and, based on a first indication field of the probe reference signal in the downlink control information (DCI), performing PUSCH transmission based on a single transmit / receive point (TRP) or PUSCH transmission using an SFN transmission mode based on multiple TRPs; wherein, the PUSCH transmission based on a single TRP is performed by transmitting PUSCH to a single TRP via one antenna panel, and the PUSCH transmission using an SFN transmission mode based on multiple TRPs is performed by transmitting PUSCH to different TRPs via multiple antenna panels respectively using an SFN transmission mode, the first indication field being used to indicate the association between a second indication field and the probe reference signal (SRS) resource set under the SFN transmission mode, and to indicate the association between the second indication field and the TRP and / or the transmission configuration indication state (TCI) state under the SFN transmission mode.

[0007] In one embodiment, the second indication field includes a first resource indication field, and the SRS resource set includes the first SRS resource set and the second SRS resource set; the maximum number of transmission layers corresponding to the single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode; the first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0008] In one implementation, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode.

[0009] In one embodiment, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. The code point is used to indicate at least one of the following associations: the code point is a first code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state; the code point is a second code point, used to indicate that the first resource indicator field is associated with the second SRS resource set, and used to indicate that the first resource indicator field is associated with the second TPR and / or the second TCI state; the code point is a third code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indicator field is associated with the second SRS resource set, and used to indicate that the second resource indicator field is associated with the second TPR and / or the second TCI state. The code point is a fourth code point, and the fourth code point is a reserved code point.

[0010] In one embodiment, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: the code point is a first code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TRP and / or the first TCI state; the code point is a second code point, used to indicate that the first resource indicator field is associated with the second SRS resource set, and used to indicate that the first resource indicator field is associated with the second TRP and / or the second TCI state; the code point is a third code point, used to indicate that the first resource indicator field is associated with the first SRS resource set. The code point is a fourth code point, used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state, to indicate that the second resource indicator field is associated with the second SRS resource set, and to indicate that the second resource indicator field is associated with the second TRP and / or the second TCI state;

[0011] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0012] In one embodiment, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes the first SRS resource set and the second SRS resource set; the maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission mode; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; or, the first SRS resource set is associated with both the first resource indication field and the second resource indication field; or, the second SRS resource set is associated with both the first resource indication field and the second resource indication field.

[0013] In one implementation, the maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode are determined based on preset rules or protocol provisions; or, the maximum number of transmission layers corresponding to the SFN transmission mode is determined based on the preset rules or protocol provisions, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

[0014] In one implementation, the first SRS resource set or the second SRS resource set is associated with a first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transport layers corresponding to the single TRP and the maximum number of transport layers corresponding to the SFN.

[0015] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0016] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0017] In one implementation, the PUSCH is transmitted based on a non-codebook, and the second indication field is a Probe Reference Signal Resource Indicator (SRI) indication field; the PUSCH is transmitted based on a codebook, and the second indication field is the SRI indication field and / or the Precoding Matrix Indicator (TPMI) indication field.

[0018] According to a second aspect of the present disclosure, a PUSCH transmission method is provided, the method being executed by a network device that supports simultaneous uplink STxMP transmission from multiple antenna panels. The method includes: determining that the PUSCH configuration adopts a single-frequency network (SFN) transmission mode; and performing PUSCH reception based on a single transmit / receive point (TRP) or a multi-TRP SFN mode based on a first indication field in the downlink control information (DCI); wherein the single-TRP PUSCH reception is PUSCH reception through one TRP facing one antenna panel, and the multi-TRP SFN transmission mode PUSCH reception is PUSCH reception through multiple antenna panels facing different TRPs using the SFN transmission mode. The first indication field is used to indicate the association between a second indication field and a sounding reference signal (SRS) resource set under the SFN transmission mode, and to indicate the association between the second indication field and the TRP and / or the transmission configuration indication state (TCI) state under the SFN transmission mode.

[0019] In one embodiment, the second indication field includes a first resource indication field, and the SRS resource set includes the first SRS resource set and the second SRS resource set; the maximum number of transmission layers corresponding to the single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode; the first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0020] In one implementation, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode.

[0021] In one embodiment, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: the code point is a first code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state; the code point is a second code point, used to indicate that the first resource indicator field is associated with the second SRS resource set, and used to indicate that the first resource indicator field is associated with the second TPR and / or the second TCI state; the code point is a third code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indicator field is associated with the second SRS resource set, and used to indicate that the second resource indicator field is associated with the second TPR and / or the second TCI state; the code point is a fourth code point, and the fourth code point is a reserved code point.

[0022] In one embodiment, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: the code point is a first code point, used to indicate that the first resource indicator field is associated with the first SRS resource set, and used to indicate that the first resource indicator field is associated with the first TRP and / or the first TCI state; the code point is a second code point, used to indicate that the first resource indicator field is associated with the second SRS resource set, and used to indicate that the first resource indicator field is associated with the second TRP and / or the second TCI state; the code point is a third code point, used to indicate that the first resource indicator field is associated with the first SRS resource set. The code point is a fourth code point, used to indicate that the first resource indicator field is associated with the first TPR and / or the first TCI state, to indicate that the second resource indicator field is associated with the second SRS resource set, and to indicate that the second resource indicator field is associated with the second TRP and / or the second TCI state;

[0023] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0024] In one embodiment, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes the first SRS resource set and the second SRS resource set; the maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission mode; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; or, the first SRS resource set is associated with both the first resource indication field and the second resource indication field; or, the second SRS resource set is associated with both the first resource indication field and the second resource indication field.

[0025] In one implementation, the maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode are determined based on preset rules or protocol provisions; or, the maximum number of transmission layers corresponding to the SFN transmission mode is determined based on the preset rules or protocol provisions, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

[0026] In one implementation, the first SRS resource set or the second SRS resource set is associated with the first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0027] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0028] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0029] In one implementation, the PUSCH is received based on a non-codebook, and the second indication field is a Probe Reference Signal Resource Indicator (SRI) indication field; the PUSCH is received based on a codebook, and the second indication field is the SRI indication field and / or the Precoding Matrix Indicator (TPMI) indication field.

[0030] According to a third aspect of the present disclosure, a communication apparatus is provided, comprising: a processing unit configured to determine a transmission mode in which a single-frequency network (SFN) transmission mode is used for PUSCH configuration; and a transceiver unit configured to perform PUSCH transmission based on a first indication field of a probe reference signal in downlink control information (DCI) or PUSCH transmission in a single transmit / receive point (TRP) SFN transmission mode. The single-TRP PUSCH transmission involves transmitting PUSCH to one TRP via an antenna panel, while the multi-TRP SFN transmission involves transmitting PUSCH to different TRPs via multiple antenna panels using the SFN transmission mode. The first indication field indicates the association between a second indication field and a probe reference signal resource set (SRS) under the SFN transmission mode, and also indicates the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission mode.

[0031] In one embodiment, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode. The first SRS resource set or the second SRS resource set is associated with the first resource indication field. In one embodiment, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI state under the SFN transmission mode.

[0032] In one embodiment, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. A code point is used to indicate at least one of the following associations: a first code point indicating an association between a first resource indicator field and a first SRS resource set, and an association between the first resource indicator field and a first TPR and / or a first TCI state; a second code point indicating an association between the first resource indicator field and a second SRS resource set, and an association between the first resource indicator field and a second TPR and / or a second TCI state; a third code point indicating an association between the first resource indicator field and the first SRS resource set, and an association between the first resource indicator field and the first TPR and / or the first TCI state, an association between the second resource indicator field and the second SRS resource set, and an association between the first resource indicator field and the second TPR and / or the second TCI state; and a fourth code point, which is a reserved code point.

[0033] In one embodiment, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. A code point is used to indicate at least one of the following associations: a first code point indicating an association between a first resource indicator field and a first SRS resource set, and indicating an association between the first resource indicator field and a first TRP and / or a first TCI state; a second code point indicating an association between the first resource indicator field and a second SRS resource set, and indicating an association between the first resource indicator field and a second TRP and / or a second TCI state; or a third code point indicating an association between the first resource indicator field and the first SRS resource set, and indicating an association between the first resource indicator field and the first TRP and / or the first TCI state, as well as indicating an association between the second resource indicator field and the second SRS resource set, and indicating an association between the second resource indicator field and a second TRP and / or a second TCI state. The code point is the fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

[0034] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0035] In one implementation, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission mode. Either the first SRS resource set or the second SRS resource set is associated with the first resource indication field. Alternatively, the first SRS resource set is associated with both the first and second resource indication fields. Alternatively, the second SRS resource set is associated with both the first and second resource indication fields.

[0036] In one implementation, the maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications. Alternatively, the maximum number of transport layers corresponding to the SFN transport mode is determined based on preset rules or protocol specifications, and the maximum number of transport layers corresponding to a single TRP is the same as the maximum number of transport layers corresponding to the SFN transport mode.

[0037] In one implementation, a first SRS resource set or a second SRS resource set is associated with a first resource indication field. The first resource indication field corresponds to the maximum number of transmission layers for a single Transmission Point Adapter (TRP) and the maximum number of transmission layers for an SFN transmission mode.

[0038] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0039] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0040] In one implementation, the PUSCH is transmitted based on a non-codebook, and the second indication field is a Probe Reference Signal Resource Indicator (SRI) indication field. Alternatively, the PUSCH is transmitted based on a codebook, and the second indication field is an SRI indication field and / or a Precoding Matrix Indicator (TPMI) indication field.

[0041] According to a fourth aspect of the present disclosure, a communication apparatus is provided, comprising: a processing unit configured to determine a single-frequency network (SFN) transmission mode for PUSCH configuration; and a transceiver unit configured to perform PUSCH reception based on a single transmit / receive point (TRP) or a multi-TRP SFN transmission mode based on a first indication field in downlink control information (DCI). The single-TRP PUSCH reception involves receiving PUSCH through one TRP facing one antenna panel, while the multi-TRP SFN transmission mode PUSCH reception involves receiving PUSCH through multiple antenna panels facing different TRPs using the SFN transmission mode. The first indication field indicates the association between a second indication field and a sounding reference signal (SRS) resource set under the SFN transmission mode, and also indicates the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission mode.

[0042] In one implementation, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transport layers corresponding to a single TRP is the same as the maximum number of transport layers corresponding to the SFN transport mode. The first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0043] In one implementation, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode.

[0044] In one embodiment, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. A code point is used to indicate at least one of the following associations: a first code point indicating an association between a first resource indicator field and a first SRS resource set, and an association between the first resource indicator field and a first TPR and / or a first TCI state; a second code point indicating an association between the first resource indicator field and a second SRS resource set, and an association between the first resource indicator field and a second TPR and / or a second TCI state; a third code point indicating an association between the first resource indicator field and the first SRS resource set, and an association between the first resource indicator field and the first TPR and / or the first TCI state, an association between the second resource indicator field and the second SRS resource set, and an association between the first resource indicator field and the second TPR and / or the second TCI state; and a fourth code point, which is a reserved code point.

[0045] In one embodiment, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. A code point is used to indicate at least one of the following associations: a first code point indicating an association between a first resource indicator field and a first SRS resource set, and indicating an association between the first resource indicator field and a first TRP and / or a first TCI state; a second code point indicating an association between the first resource indicator field and a second SRS resource set, and indicating an association between the first resource indicator field and a second TRP and / or a second TCI state; or a third code point indicating an association between the first resource indicator field and the first SRS resource set, and indicating an association between the first resource indicator field and the first TRP and / or the first TCI state, as well as indicating an association between the second resource indicator field and the second SRS resource set, and indicating an association between the second resource indicator field and a second TRP and / or a second TCI state. The code point is the fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

[0046] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0047] In one implementation, the resource indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission mode. Either the first SRS resource set or the second SRS resource set is associated with the first resource indication field. Alternatively, the first SRS resource set is associated with both the first and second resource indication fields. Alternatively, the second SRS resource set is associated with both the first and second resource indication fields.

[0048] In one implementation, the maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications. Alternatively, the maximum number of transport layers corresponding to the SFN transport mode is determined based on preset rules or protocol specifications, and the maximum number of transport layers corresponding to a single TRP is the same as the maximum number of transport layers corresponding to the SFN transport mode.

[0049] In one implementation, a first SRS resource set or a second SRS resource set is associated with a first resource indication field. The first resource indication field corresponds to the maximum number of transmission layers for a single Transmission Point Adapter (TRP) and the maximum number of transmission layers for an SFN transmission mode.

[0050] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0051] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0052] In one implementation, the PUSCH is transmitted based on a non-codebook, and the second indication field is a Probe Reference Signal Resource Indicator (SRI) indication field. Alternatively, the PUSCH is transmitted based on a codebook, and the second indication field is an SRI indication field and / or a Precoding Matrix Indicator (TPMI) indication field.

[0053] According to a fifth aspect of the present disclosure, a communication device is provided, the device comprising: a processor;

[0054] A memory for storing processor-executable instructions; wherein the processor is configured to schedule the instructions stored in the memory to execute the method of the first aspect or any embodiment of the first aspect.

[0055] According to a sixth aspect of the present disclosure, a communication device is provided, comprising: a processor;

[0056] A memory for storing processor-executable instructions; wherein the processor is configured to schedule the instructions stored in the memory to execute the method of the second aspect or any embodiment of the second aspect.

[0057] According to a seventh aspect of the present disclosure, a system is provided, comprising a terminal and a network device; the terminal is configured to perform the method described in any one of the first aspects; and the network device is configured to perform the method described in any one of the second aspects.

[0058] According to an eighth aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed by a processor of a terminal, enable the terminal to perform the method of the first aspect or any embodiment of the first aspect.

[0059] According to a ninth aspect of the present 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 method of the second aspect or any embodiment of the second aspect.

[0060] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: This disclosure performs PUSCH transmission based on a single TRP or PUSCH transmission based on a multi-TRP SFN transmission mode based on a first indication field in DCI, so that the dynamic switching between single TRP and multi-TRP is better applicable to different terminals.

[0061] 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

[0062] 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.

[0063] Figure 1 This is a schematic diagram of a wireless communication system according to an exemplary embodiment.

[0064] Figure 2 This is a schematic diagram illustrating a multi-antenna panel / multi-TRP transmission scenario under a single DCI scheduling according to an exemplary embodiment.

[0065] Figure 3 This is a schematic diagram illustrating a multi-antenna panel / multi-TRP transmission scenario under multi-DCI scheduling according to an exemplary embodiment.

[0066] Figure 4 This is a schematic diagram illustrating a multi-TP transmission method according to an exemplary embodiment.

[0067] Figure 5 This is a flowchart illustrating a PUSCH transmission method according to an exemplary embodiment.

[0068] Figure 6 This is a flowchart illustrating another PUSCH transmission method according to an exemplary embodiment.

[0069] Figure 7 This is a flowchart illustrating another PUSCH transmission method according to an exemplary embodiment.

[0070] Figure 8 This is a flowchart illustrating another PUSCH transmission method according to an exemplary embodiment.

[0071] Figure 9 This is a schematic diagram of a communication device according to an exemplary embodiment.

[0072] Figure 10 This is a schematic diagram of another communication device according to an exemplary embodiment.

[0073] Figure 11 This is a schematic diagram of another communication device according to an exemplary embodiment.

[0074] Figure 12 This is a schematic diagram of another communication device according to an exemplary embodiment. Detailed Implementation

[0075] 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 numbers 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.

[0076] The PUSCH transmission method disclosed herein can be applied to Figure 1 The wireless communication system 100 shown may include network device 110 and terminal 120. It is understood that... 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.

[0077] 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 the 5th Generation Wireless Communication System (5G) network. 5G networks can also be referred to as New Radio (NR). For ease of description, this disclosure sometimes refers to the wireless communication network simply as a network.

[0078] Furthermore, the network device 110 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 (eNB), a home base station, an access point (AP) in a Wireless Fidelity (WIFI) system, a wireless relay node, a wireless backhaul node, or a transmission point (TP), etc. It can also be a gNB in ​​an NR system, or a component or part of a base station. When it is a vehicle-to-everything (V2X) communication system, the network device can also be an in-vehicle device. It should be understood that the specific technologies and device forms used in the embodiments of this disclosure are not limited.

[0079] Furthermore, the terminal 120 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 (Mobile Phones), 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.

[0080] In this embodiment, network device 110 and terminal 120 can employ any feasible wireless communication technology to transmit data to each other. The transmission channel corresponding to network device 110 sending data to terminal 120 is called the downlink channel (DL), and the transmission channel corresponding to terminal 120 sending data to network device 110 is called the uplink channel (UL). It is understood that the network device involved in this embodiment can be a base station. Of course, the network device can also be any other possible network device, and the terminal can be any possible terminal; this disclosure does not impose any limitations.

[0081] Uplink physical uplink shared channel (PUSCH) transmissions can be transmitted to the TRP direction of multiple network devices.

[0082] In related technologies, time-division multiplexing is used to enable a terminal to transmit PUSCH to multiple TRPs. However, for terminals using the TDM scheme, the ability to transmit beams simultaneously is not required. That is, the terminal can have only one antenna panel.

[0083] With the development of communication technology, in order to achieve higher reliability and throughput for PUSCH transmission and reduce the transmission latency of multiple TRPs, a multi-antenna panel / multi-TRP simultaneous uplink transmission scheme is adopted. Terminals using this scheme are required to have the ability to transmit multiple beams simultaneously. In other words, the terminal has multiple antenna panels. Simultaneous uplink transmission (STxMP) across multiple antenna panels in the terminal is supported.

[0084] PUSCH can schedule transmissions across multiple antenna panels / multiple TRPs based on a single downlink control signal DCI. Figure 2 A schematic diagram of a multi-antenna panel / multi-TRP transmission scenario under single DCI scheduling is shown. (See also...) Figure 2 UE represents the terminal, TPMI represents the Transmission Precoding Matrix Indicator (TPMI). The UE transmits TPMI1 via TPR1 on antenna panel 1 and transmits TPMI2 via TPR2 on antenna panel 2.

[0085] PUSCH can transmit based on multiple DCI scheduling multiple antenna panels / multiple TRPs. Figure 3 A schematic diagram of a multi-antenna panel / multi-TRP transmission scenario under multi-DCI scheduling is shown. (See also...) Figure 3 PDCCH stands for Physical Downlink Shared Channel. The terminal transmits data with TPR1 on antenna panel 1 based on PDCCH1 and PUSCH1.

[0086] In related technologies, multi-transmitter point (TP) transmission is based on noncoherent-joint transmission (NC-JT). Noncoherent transmission means that each data stream value is mapped to the port corresponding to the TRP / antenna panel with consistent large-scale parameters of the channel (quasi co-located, QCL). Different data streams can be mapped to different ports of the QCL without having to treat all cooperating points as a virtual array and perform joint shaping on each layer.

[0087] Figure 4 This is a schematic diagram of a multi-TP transmission method. (See attached diagram) Figure 4 The upper part of the diagram shows the transmission method of single-point transmission DPS, where all codewords corresponding to the layers of DPS are transmitted through one transmission point. The middle part of the diagram shows the transmission method of coherent transmission C-JT, where all codewords and layers of C-JT are transmitted after joint precoding through two transmission points. The lower part of the diagram shows the transmission method of non-coherent transmission NC-JT, where the codewords corresponding to data layers 1-2 of NC-JT are transmitted from TP1, while the codewords corresponding to data layers 3-4 are transmitted from TP2.

[0088] PUSCH's multi-antenna panel transmission supports two different configuration modes: codebook-based transmission and non-codebook-based transmission. In codebook-based uplink simultaneous transmission, the terminal needs to configure a Sounding Reference Signal (SRS) resource set for uplink transmission. The SRS resource set can be configured with multiple SRS resources. The network device will feed back a bit of the SRS resource indicator (SRI) based on the number of SRS resources in the SRS resource set to select an SRS resource. Furthermore, the network device determines and notifies the terminal of the Transmission Precoding Matrix Indicator (TPMI) and the Rank Indicator (RI) used for the actual transmission. In subsequent uplink transmissions, the terminal needs to precode the data using the TPMI and RI specified by the network device. Simultaneously, the precoded data is mapped to the corresponding antenna port according to the spatial relation information (SRI) of the SRS resource.

[0089] Table 1 illustrates a method for indicating multiple SRS resources using SRI. 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 divided 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. In Table 1, SRI(s) represents the number of SRI indications, which is the number of SRS resources.

[0090]

[0091] Table 1

[0092]

[0093] Table 2

[0094]

[0095] Table 3

[0096] For non-codebook-based uplink transmissions, network devices configure associated downlink CSI-RS for terminal downlink channel detection. The terminal selects a precoding matrix through downlink channel calculation and simultaneously transmits SRS in each precoding beam direction on the configured SRS resource set. The base station performs uplink channel detection on the SRS, and the network device simultaneously performs resource scheduling for the UE, notifying the UE via downlink signaling and selecting beams in the precoding matrix via SRI indication. The terminal uses the modified precoding matrix to determine the actual precoding and the allowed number of layers, and transmits PUSCH. The terminal determines the precoding indication limit based on the higher-layer parameter maximum transmission layer (maxRank), and the number of SRS resources indicated by SRI is no greater than maxRank. To enable the network to modify the precoding matrix actually used by the terminal, for non-codebook-based transmissions, the network needs to configure an SRS resource set for the terminal.

[0097] Table 4-7 illustrates a specific method for indicating the SRI indication field in a protocol for non-codebook transmission. In Table 4-7, Lmax represents the transmission layer limit configured by the base station. The terminal determines the corresponding SRI table and the number of bits in the SRI indication field based on this parameter.

[0098]

[0099] Table 4

[0100]

[0101] Table 5 Table 6 Table 7 In related technologies, the definition of the SRI indication field is shown in Table 8 below:

[0102]

[0103] Table 8

[0104] Specifically, when the code point in the SRI indication field is 00, it indicates that the terminal uses s-TRP mode to transmit PUSCH to TRP1, associating it with the first SRS resource set. In codebook-based transmission mode, the SRI and TPMI used in this transmission are obtained using the first SRI / TPMI field in the DCI; in non-codebook-based transmission mode, the SRI used in this transmission is obtained using the first SRI field in the DCI. In this case, the second SRI / TPMI field is not used.

[0105] When the code point in the SRI indication field is 01, it indicates that the terminal is transmitting PUSCH to TRP2 in s-TRP mode, associating it with the second SRS resource set. In codebook-based transmission mode, the SRI and TPMI used in this transmission are obtained using the first SRI / TPMI field in the DCI; in non-codebook-based transmission mode, the SRI used in this transmission is obtained using the first SRI field in the DCI. In this case, the second SRI / TPMI field is not used.

[0106] When the code point in the SRI indication field is 10, it indicates that the terminal uses m-TRP mode to first transmit PUSCH to TRP1 in the first TO, associating it with the first SRS resource set; then, it transmits PUSCH to TRP2 in the second TO. In codebook-based transmission mode, the first SRI / TPMI field in the DCI is used to obtain the SRI and TPMI used for transmission to TRP1, and the second SRI / TPMI field in the DCI is used to obtain the SRI and TPMI used for transmission to TRP2; in non-codebook-based transmission mode, the first SRI / TPMI field in the DCI is used to obtain the SRI used for transmission to TRP1, and the second SRI / TPMI field in the DCI is used to obtain the SRI used for transmission to TRP2.

[0107] When the code point in the SRI indication field is 11, it is used to indicate that the terminal uses m-TRP mode to first transmit PUSCH to TRP2 in the first TO, associating it with the second SRS resource set; then, it transmits PUSCH to TRP1 in the second TO. In codebook-based transmission mode, the SRI and TPMI used for transmission to TRP2 are obtained using the second SRI / TPMI field in the DCI, and the SRI and TPMI used for transmission to TRP1 are obtained using the first SRI / TPMI field in the DCI; in non-codebook-based transmission mode, the SRI used for transmission to TRP2 is obtained using the second SRI / TPMI field in the DCI, and the SRI used for transmission to TRP1 is obtained using the first SRI / TPMI field in the DCI.

[0108] In related technologies, STxMP supports the following transmission schemes for S-DCI-based PUSCH: space division multiplexing (SDM) scheme and single frequency network (SFN) scheme.

[0109] In the SDM (Spatial Division Multiplexing) scheme, different parts of a transport block (TB) of the PUSCH are transmitted to two different TRPs on the same time-frequency resources through their respective DMRS ports or port combinations allocated on different antenna panels. Different panels, TRPs, and transmission timings (TO) are associated with different TCI (Tracking Control Center) states. In the SFN (Spatial Division Multiplexing) scheme, a TB of the PUSCH is transmitted to two different TRPs on the same time-frequency resources through the same DMRS ports or port combinations allocated on different antenna panels. Different antenna panels, TRPs, and transmission timings (TO) are associated with different TCI states.

[0110] For terminals with multiple antenna panels, how to achieve dynamic switching between a single TRP and multiple TRPs is still under discussion.

[0111] Therefore, this disclosure enables dynamic switching between single TRP and multiple TRP in SFN transmission mode by performing PUSCH transmission based on the first indication field in DCI or PUSCH transmission based on multiple TRP in SFN transmission mode, so that it is better suited to different terminals.

[0112] Figure 5 This is a flowchart illustrating a PUSCH transmission method according to an exemplary embodiment, such as... Figure 1 As shown, the method is executed by the terminal and includes the following steps.

[0113] In step S11, it is determined that the PUSCH configuration adopts the transmission mode of single-frequency network (SFN).

[0114] In step S12, based on the first indication field in the DCI, PUSCH transmission is performed using either a single TRP-based PUSCH transmission or a multi-TRP-based SFN transmission method.

[0115] In one implementation, when the terminal sends PUSCH to the network device, the PUSCH is configured to use SFN transmission mode, which supports PUSCH transmission based on multiple TRPs.

[0116] In one implementation, the terminal can perform PUSCH transmission using SFN (Single-TRP) or multi-TRP based on the first indication field in the DCI. Specifically, single-TRP PUSCH transmission uses one antenna panel to transmit PUSCH to one TRP, while multi-TRP SFN PUSCH transmission uses multiple antenna panels to transmit PUSCH to different TRPs using SFN. Transmitting PUSCH to different TRPs using SFN via multiple antenna panels increases transmission reliability and throughput, while effectively reducing transmission latency under multi-TRP conditions. Transmitting PUSCH to one TRP using one antenna panel saves configuration resources. The terminal dynamically switches between single-TRP and multi-TRP modes using the SRS (Support Resource Indicator) field to minimize configuration resource consumption, improve transmission reliability and throughput, and reduce transmission latency under multi-TRP conditions.

[0117] In one embodiment, the first indication field is used to indicate the association between the second indication field and the SRS resource set under SFN transmission mode, or to indicate the association between the second indication field and the SRS resource set, as well as the TRP and / or beam indication TCI status under SFN transmission mode.

[0118] For example, the first indication field can indicate the association between different second indication fields and different SRS resource sets under SFN transmission mode. The association between the second indication field and the SRS resource set indicates that the second indication field can indicate the SRS resources in that SRS resource set.

[0119] For example, the first indication field can also indicate the association between different second indication fields and different SRS resource sets, as well as different TRPs and / or different TCI states under SFN transmission mode. The association between the second indication field and the TRP indicates that the second indication field is used to indicate the SRS resources or precoding transmitted in the direction of that TRP. The association between the second indication field and the TCI state indicates that the second indication field is used to indicate the SRS resources or precoding transmitted in that TCI state.

[0120] In one implementation, the second indication field can be an SRI indication field, used by the terminal and network device for codebook or non-codebook transmission. Alternatively, the second indication field can be a TPMI indication field, typically used for codebook transmission. It is understood that when the terminal transmits based on a codebook, it can configure the SRI indication field for indication, or it can configure the TPMI indication field for indication, and so on.

[0121] The embodiments disclosed herein are based on the first indication field in DCI to perform PUSCH transmission based on single TRP or PUSCH transmission based on SFN transmission mode of multiple TRP, so as to enable dynamic switching between single TRP and multiple TRP and better suit different terminals.

[0122] In the PUSCH transmission method of this disclosure, the maximum number of transmission layers corresponding to the SFN transmission mode is generally 2 layers. This disclosure will use the maximum number of transmission layers of the SFN transmission mode as 2 layers for subsequent explanation and description. It can be understood that the maximum number of transmission layers corresponding to SFN can also be greater than 2 layers, and this disclosure does not limit it.

[0123] In some implementations, in the PUSCH transmission method, the second indication field includes a first resource indication field, and the SRS resources include a first SRS resource and a second SRS resource. When the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission method, the first indication field can indicate that the first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0124] In one implementation, Figure 6 This is a schematic diagram illustrating a PUSCH transmission method according to an exemplary embodiment. Figure 6 As shown, the PUSCH transmission method includes the following steps.

[0125] In step S21, it is determined that the PUSCH configuration adopts the transmission mode of single-frequency network (SFN).

[0126] In step S22, based on the association between the first SRS resource set or the second SRS resource set and the first resource indication field, PUSCH transmission is performed using either a single TRP-based PUSCH transmission or an SFN transmission method based on multiple TRPs.

[0127] In one implementation, the first indication field is associated with an SRS resource; for example, the first indication field is the SRSresource set indicator field in the DCI.

[0128] In one implementation, the maximum number of transmission layers for SFN transmission can be determined based on preset rules or protocol specifications, such that the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to SFN transmission. Alternatively, when the maximum number of transmission layers for both single TRP and SFN transmission is determined based on preset rules or protocol specifications and is the same, the resource set indication field can indicate that the first SRS resource set or the second SRS resource set is associated with the first resource indication field. The terminal can indicate SRS resources in the first SRS resource set based on the first resource indication field, or the terminal can indicate SRS resources in the second SRS resource set based on the first resource indication field, to perform PUSCH transmission.

[0129] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0130] In some implementations, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, as well as the TRP and / or TCI status.

[0131] In one implementation, the terminal can determine the code point corresponding to the resource set indication field, and indicate the association between the second indication field and the SRS resource set and the TPR and / or TCI states based on the code point.

[0132] In this embodiment of the disclosure, the terminal determines the code point and dynamically switches between single TRP and multiple TRP based on different code points, which is more suitable for different terminals.

[0133] In some implementations, in the PUSCH transmission method, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. The code point corresponding to the resource set indication field includes a first code point, a second code point, a third code point, and a fourth code point. Specifically, the first code point indicates that the first resource indication field is associated with the first SRS resource set, and also indicates that the first resource indication field is associated with the first TRP and / or the first TCI state. The second code point indicates that the first resource indication field is associated with the second SRS resource set, and also indicates that the first resource indication field is associated with the second TRP and / or the second TCI state; the third code point indicates that the first resource indication field is associated with the first SRS resource set, and also indicates that the first resource indication field is associated with the first TRP and / or the first TCI state, and further indicates that the second resource indication field is associated with the second SRS resource set, and also indicates that the second resource indication field is associated with the second TRP and / or the second TCI state. The fourth code point is a reserved code point. A reserved code point can be understood as a code point that does not have any indication information, but indication information can be configured as needed.

[0134] In one implementation, the terminal can send PUSCH based on different code points. For example, the terminal can send PUSCH based on a first code point, which can be considered as the terminal mapping resources based on a first SRS resource set, sending PUSCH through a first TRP direction based on a first TCI state.

[0135] In some implementations, the code points corresponding to the resource set indicator field include a first code point, a second code point, a third code point, and a fourth code point. The first, second, and third code points are the same as those in the above embodiments, and will not be repeated here. The fourth code point is used to indicate that the first resource indicator field is associated with the first SRS resource set, and to indicate that the first resource indicator field is associated with the second TPR and / or the second TCI state; it is also used to indicate that the second resource indicator field is associated with the second SRS resource set, and to indicate that the second resource indicator field is associated with the first TPR and / or the first TCI state.

[0136] In one implementation, the fourth code point corresponding to the resource set indicator field has a different order of TRP and TCI states compared to the third code point, and the fourth code point satisfies more application scenarios.

[0137] In one implementation, it can be understood that the first and second code points correspond to a single TRP, and the third and fourth code points correspond to the SFN transmission mode. The terminal determines different code points and sends PUSCH based on the different code points, so that the single TRP and multi-TRP transmission modes can be dynamically switched.

[0138] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0139] In some implementations, in the PUSCH transmission method, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0140] In one implementation, the bit width of the first resource indicator field is related to the number of SRS resources in the SRS resource set associated with the first resource indicator field. It can be understood that the more SRS resources in the SRS resource set corresponding to the first resource indicator field, the larger the bit width of the first resource indicator field.

[0141] In one implementation, a first resource indicator field in a first code point indicates a first SRS resource set, and a second code point indicates the association between the first resource indicator field and a second SRS resource set. It is understood that the bit width of the first resource indicator field in this embodiment must be able to associate with both the first and second SRS resource sets. The second resource indicator field is associated with either the first or second SRS resource set; therefore, the bit width of the first resource indicator field is not less than the bit width of the second resource indicator field. The network device configures the number of SRS resources in the first SRS resource set to be not less than the number of SRS resources in the second SRS resource set, ensuring that the bit width of the first resource indicator field is not less than the bit width of the second resource indicator field.

[0142] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0143] In some implementations, in the PUSCH transmission method, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. When the maximum number of transmission layers for both single TRP and SFN transmission modes is determined based on preset rules or protocol specifications, and they are different, the first indication field may indicate: either the first SRS resource set or the second SRS resource set is associated with the first resource indication field; or, the first SRS resource set is associated with both the first and second resource indication fields; or, the second SRS resource set is associated with both the first and second resource indication fields.

[0144] In one implementation, when the SFN transmission mode and the maximum number of transmission layers per TRP are different, a first SRS resource set or a second SRS resource set can be indicated to be associated with the first resource indication. Since the SFN transmission mode and the maximum number of transmission layers per TRP are different, the bit width of the corresponding first resource indication field is also different. It can be understood that the more SFN transmission mode or the more maximum transmission layers per TRP, the wider the bit width of the corresponding first resource indication field, and the more SRS resources are indicated. Therefore, the bit width of the first resource indication field must be able to indicate both SFN transmission mode transmission and single TRP transmission with a different maximum number of transmission layers than the SFN transmission mode.

[0145] In one implementation, when the SFN transmission mode and the maximum number of transmission layers of a single TRP are different, the code point corresponding to the first resource indicator field can be adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0146] For example, the code points corresponding to the first resource indicator field can be adapted to the maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode by increasing the code points of the first resource indicator field.

[0147] For example, by adding indication information to the existing reserved code points in the first resource indication field, the code points corresponding to the first resource indication field can be adapted to the maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0148] In one implementation, when transmitting using the SFN transmission method, the first resource indication field may be equipped with reserved code points for alignment.

[0149] In one implementation, the first resource indication field and the second resource indication field can jointly indicate the first SRS resource set, or the first resource indication field and the second resource indication field can jointly indicate the second SRS resource set. Joint indication can also satisfy the requirement of indicating transmissions in SFN transmission mode, and also satisfy the requirement of indicating transmissions in a single TRP with a maximum transmission layer number different from that in SFN transmission mode, avoiding increased DCI overhead and saving resources.

[0150] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP modes by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0151] In some implementations, the maximum number of transport layers for single TRP and SFN transport modes can be determined in the following ways:

[0152] The maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to SFN transmission mode are determined based on preset rules or the protocol specifications. Alternatively, the maximum number of transmission layers corresponding to SFN is determined based on preset rules or the protocol specifications, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to SFN.

[0153] In one implementation, when the maximum number of transmissions corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode are different, they are determined based on preset rules or protocol specifications, respectively. When the maximum number of transmissions corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode are the same, they can be determined in two ways. For example, the maximum number of transmission layers for SFN can be determined based on preset rules or the protocol specifications, so that the maximum number of transmission layers for SFN is the same as the maximum number of transmission layers for a single TRP.

[0154] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0155] In some implementations, the maximum number of transmission layers corresponding to SFN in the PUSCH method of this disclosure can also be greater than 2 layers. When the maximum number of transmission layers corresponding to SFN is greater than 2 layers, the indication method of the first indication field can be referred to when the maximum number of transmission layers corresponding to SFN transmission mode is the same as the maximum number of transmission layers of a single TRP in the above embodiments. This disclosure will not repeat the details.

[0156] Based on the same concept, this disclosure also provides a PUSCH transmission method performed by a network device.

[0157] Figure 7 This is a flowchart illustrating a PUSCH transmission method according to an exemplary embodiment, such as... Figure 7 As shown, the method is executed by the terminal and includes the following steps.

[0158] In step S31, it is determined that the PUSCH configuration adopts the transmission mode of single-frequency network (SFN).

[0159] In step S32, based on the first indication field in the DCI, PUSCH reception is performed using either single TRP-based PUSCH reception or SFN transmission mode based on multiple TRPs.

[0160] In one implementation, when the network device receives data based on PUSCH, the PUSCH is configured to use SFN transmission mode, which supports PUSCH reception based on multiple TRPs.

[0161] In one implementation, the network device can perform PUSCH reception using SFN transmission mode based on a single TRP or multiple TRPs, based on the first indication field in the DCI. Specifically, single-TRP PUSCH reception involves receiving PUSCH through one TRP facing one antenna panel, while multi-TRP SFN PUSCH reception involves receiving PUSCH through multiple antenna panels facing different TRPs using SFN transmission mode. Receiving PUSCH through multiple antenna panels facing different TRPs using SFN transmission mode increases transmission reliability and throughput, while effectively reducing transmission latency under multiple TRPs. Receiving PUSCH through one TRP facing one antenna panel saves configuration resources. The network device dynamically switches between single-TRP and multi-TRP modes using the SRS resource indication field to minimize configuration resources, improve transmission reliability and throughput, and reduce transmission latency under multiple TRPs.

[0162] In one embodiment, the first indication field is used to indicate the association between the second indication field and the SRS resource set under SFN transmission mode, or to indicate the association between the second indication field and the SRS resource set, as well as the TRP and / or beam indication TCI status under SFN transmission mode.

[0163] In one implementation, the second indication field can be an SRI indication field, used by the terminal and network device for codebook or non-codebook transmission. Alternatively, the second indication field can be a TPMI indication field, typically used for codebook transmission. It is understood that when the terminal transmits based on a codebook, it can configure the SRI indication field for indication, or it can configure the TPMI indication field for indication, and so on.

[0164] The embodiments disclosed herein are based on the first indication field in DCI to perform PUSCH reception based on single TRP or PUSCH reception based on SFN transmission mode of multiple TRP, so that the dynamic switching between single TRP and multiple TRP can be better adapted to different terminals.

[0165] In the PUSCH transmission method of this disclosure, the maximum number of transmission layers corresponding to the SFN transmission mode is generally 2 layers. This disclosure will use the maximum number of transmission layers of the SFN transmission mode as 2 layers for subsequent explanation and description. It can be understood that the maximum number of transmission layers corresponding to the SFN transmission mode can also be greater than 2 layers, and this disclosure does not limit it.

[0166] In some implementations, in the PUSCH transmission method, the second indication field includes a first resource indication field, and the SRS resources include a first SRS resource and a second SRS resource. When the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission method, the first indication field can indicate that the first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0167] In one implementation, Figure 8 A schematic diagram of a PUSCH transmission method illustrated according to an exemplary embodiment. (See diagram below.) Figure 8 As shown, the PUSCH transmission method includes the following steps.

[0168] In step S41, it is determined that the PUSCH configuration adopts the transmission mode of single-frequency network SFN.

[0169] In step S42, based on the association between the first SRS resource set or the second SRS resource set and the first resource indication field, PUSCH reception is performed using either single TRP-based PUSCH reception or SFN transmission mode based on multiple TRPs.

[0170] In one implementation, the network device may indicate SRS resources in a first SRS resource set based on a first resource indication field, or the network device may indicate SRS resources in a second SRS resource set based on a first resource indication field, to perform PUSCH reception.

[0171] This embodiment of the disclosure performs PUSCH reception based on a single TRP or a multi-TRP SFN transmission mode by using the first indication field in the DCI under SFN transmission mode, so that the dynamic switching between single TRP and multi-TRP can be better adapted to different terminals.

[0172] In some implementations, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, as well as the TRP and / or TCI status.

[0173] In one implementation, the network device can determine the code point corresponding to the resource set indication field, and indicate the association between the second indication field and the SRS resource set and the TPR and / or TCI status based on the code point.

[0174] In this embodiment of the disclosure, the network device determines the code point and switches dynamically between single TRP and multiple TRP based on different code points, which is more suitable for different terminals.

[0175] In some implementations, in the PUSCH transmission method, the TRP includes a first TRP and a second TRP, and the TCI state includes a first TCI state and a second TCI state. The code point corresponding to the resource set indication field includes a first code point, a second code point, a third code point, and a fourth code point. Specifically, the first code point indicates that the first resource indication field is associated with the first SRS resource set, and also indicates that the first resource indication field is associated with the first TRP and / or the first TCI state. The second code point indicates that the first resource indication field is associated with the second SRS resource set, and also indicates that the first resource indication field is associated with the second TRP and / or the second TCI state; the third code point indicates that the first resource indication field is associated with the first SRS resource set, and also indicates that the first resource indication field is associated with the first TRP and / or the first TCI state, and further indicates that the second resource indication field is associated with the second SRS resource set, and also indicates that the second resource indication field is associated with the second TRP and / or the second TCI state. The fourth code point is a reserved code point. A reserved code point can be understood as a code point that does not have any indication information, but indication information can be configured as needed.

[0176] In one implementation, the network device can receive PUSCH based on different code points.

[0177] In some implementations, the code points corresponding to the resource set indicator field include a first code point, a second code point, a third code point, and a fourth code point. The first, second, and third code points are the same as those in the above embodiments, and will not be repeated here. The fourth code point is used to indicate that the first resource indicator field is associated with the first SRS resource set, and to indicate that the first resource indicator field is associated with the second TPR and / or the second TCI state; it is also used to indicate that the second resource indicator field is associated with the second SRS resource set, and to indicate that the second resource indicator field is associated with the first TPR and / or the first TCI state.

[0178] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0179] In some implementations, in the PUSCH transmission method, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0180] This embodiment of the disclosure performs PUSCH reception based on a single TRP or a multi-TRP SFN transmission mode by using the first indication field in the DCI under SFN transmission mode, so that the dynamic switching between single TRP and multi-TRP can be better adapted to different terminals.

[0181] In some implementations, in the PUSCH transmission method, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. When the maximum number of transmission layers for both single TRP and SFN transmission modes is determined based on preset rules or protocol specifications, and they are different, the first indication field may indicate: either the first SRS resource set or the second SRS resource set is associated with the first resource indication field; or, the first SRS resource set is associated with both the first and second resource indication fields; or, the second SRS resource set is associated with both the first and second resource indication fields.

[0182] In one implementation, when the SFN transmission mode and the maximum number of transmission layers per TRP are different, a first SRS resource set or a second SRS resource set may be indicated to be associated with the first resource indication.

[0183] In one implementation, when the SFN transmission mode and the maximum number of transmission layers of a single TRP are different, the code point corresponding to the first resource indicator field can be adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0184] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0185] In some implementations, the maximum number of transport layers for single TRP and SFN transport modes can be determined in the following ways:

[0186] The maximum number of transmission layers corresponding to a single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode are determined based on preset rules or the protocol specifications. Alternatively, the maximum number of transmission layers corresponding to the SFN transmission mode is determined based on preset rules or the protocol specifications, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

[0187] This disclosure embodiment enables dynamic switching between single TRP and multiple TRP by performing PUSCH transmission based on the first indication field in DCI under SFN transmission mode, thereby making it more suitable for different terminals.

[0188] In some implementations, the maximum number of transmission layers corresponding to the SFN transmission mode in the PUSCH method of this disclosure can also be greater than 2 layers. When the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2 layers, the indication method of the first indication field can be referred to in the above embodiment when the maximum number of transmission layers corresponding to the SFN transmission mode is the same as the maximum number of transmission layers of a single TRP. This disclosure will not repeat the details.

[0189] 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.

[0190] It is understood that some aspects of the PUSCH transmission process performed by the network device in this embodiment are similar to those performed by the terminal. Therefore, this embodiment will not be described in detail here. For any parts that are not described in sufficient detail, please refer to the communication process of PUSCH transmission on the terminal side.

[0191] It is further understood that the PUSCH transmission method provided in this disclosure is applicable to communication between a terminal and a network device. During the PUSCH transmission process between the terminal and the network device, the terminal performs the terminal functions described in the above embodiments, and the network device performs the network device functions described in the above embodiments. For details, please refer to the relevant descriptions in the above embodiments, which will not be elaborated upon here.

[0192] Based on the same concept, embodiments of this disclosure also provide a communication device.

[0193] It is understood that the communication device 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.

[0194] Figure 9 This is a block diagram illustrating an apparatus 200 for PUSCH transmission according to an exemplary embodiment.

[0195] like Figure 9 As shown, the device includes a processing unit 201 and a transceiver unit 202.

[0196] Processing unit 201 is used to determine that the PUSCH configuration adopts the transmission mode of single-frequency network SFN.

[0197] The transceiver unit 202 is used to perform PUSCH transmission based on a single transmit / receive point (TRP) or PUSCH transmission based on multiple TRPs in the first indication field of the probe reference signal in the downlink control information (DCI).

[0198] Among them, PUSCH transmission based on a single TRP is to transmit PUSCH to a single TRP through an antenna panel, while PUSCH transmission based on multiple TRPs using the SFN transmission method is to transmit PUSCH to different TRPs through multiple antenna panels using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the sounding reference signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the transmission configuration indication status (TCI) status under the SFN transmission method.

[0199] In one implementation, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transport layers corresponding to a single TRP is the same as the maximum number of transport layers corresponding to the SFN transport mode. The first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0200] In one implementation, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode.

[0201] In one implementation, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations:

[0202] The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state.

[0203] The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state.

[0204] The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state.

[0205] The code point is the fourth code point, which is a reserved code point.

[0206] In one implementation, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations:

[0207] The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state.

[0208] The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state.

[0209] The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state.

[0210] The code point is the fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

[0211] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0212] In one implementation, the second indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transport layers corresponding to a single TRP is different from the maximum number of transport layers corresponding to the SFN transport mode.

[0213] The first SRS resource set or the second SRS resource set is associated with the first resource indication field. Or,

[0214] The first SRS resource set is associated with both the first resource indicator domain and the second resource indicator domain. Or,

[0215] The second SRS resource set is associated with both the first resource indicator domain and the second resource indicator domain.

[0216] In one implementation, the maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications. Alternatively,

[0217] The maximum number of transmission layers corresponding to SFN transmission mode is determined based on preset rules or protocol specifications. The maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to SFN.

[0218] In one implementation, the first SRS resource set or the second SRS resource set is associated with the first resource indication domain.

[0219] The maximum number of transmission layers corresponding to the code point adaptation single TRP for the first resource indicator field, and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0220] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0221] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0222] In one implementation, PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field.

[0223] PUSCH is sent based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field.

[0224] Figure 10 This is a block diagram illustrating an apparatus 300 for PUSCH transmission according to an exemplary embodiment.

[0225] like Figure 10 As shown, the device includes a processing unit 301 and a transceiver unit 302.

[0226] Processing unit 301 is used to determine that the PUSCH configuration adopts the transmission mode of single-frequency network SFN.

[0227] The transceiver unit 302 is used to perform PUSCH reception based on a single transmit / receive point (TRP) or PUSCH reception based on multiple TRPs in the downlink control information (DCI) using the first indication field.

[0228] Among them, PUSCH reception based on a single TRP is PUSCH reception performed by facing one antenna panel through one TRP, while PUSCH reception based on the SFN transmission method of multiple TRPs is PUSCH reception performed by facing different TRPs through multiple antenna panels using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the sounding reference signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the transmission configuration indication status (TCI) status under the SFN transmission method.

[0229] In one implementation, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transport layers corresponding to a single TRP is the same as the maximum number of transport layers corresponding to the SFN transport mode.

[0230] The first SRS resource set or the second SRS resource set is associated with the first resource indication field.

[0231] In one implementation, the code point corresponding to the first indication field is used to indicate the association between the resource indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode.

[0232] In one implementation, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations:

[0233] The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state.

[0234] The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state.

[0235] The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state.

[0236] The code point is the fourth code point, which is a reserved code point.

[0237] In one implementation, the TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations:

[0238] The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state.

[0239] The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state.

[0240] The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TPR and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state.

[0241] The code point is the fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TPR and / or the second TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and used to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

[0242] In one implementation, the number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

[0243] In one implementation, the indication field includes a first resource indication field and a second resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set. The maximum number of transport layers corresponding to a single TRP is different from the maximum number of transport layers corresponding to the SFN transport mode.

[0244] The first SRS resource set or the second SRS resource set is associated with the first resource indication field. Or,

[0245] The first SRS resource set is associated with both the first resource indicator domain and the second resource indicator domain. Or,

[0246] The second SRS resource set is associated with both the first resource indicator domain and the second resource indicator domain.

[0247] In one implementation, the maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications. Alternatively,

[0248] The maximum number of transmission layers corresponding to the SFN transmission mode is determined based on preset rules or protocol specifications, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

[0249] In one implementation, the first SRS resource set or the second SRS resource set is associated with the first resource indication domain.

[0250] The maximum number of transmission layers corresponding to the code point adaptation single TRP for the first resource indicator field, and the maximum number of transmission layers corresponding to the SFN transmission mode.

[0251] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is 2.

[0252] In one implementation, the maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

[0253] In one implementation, PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field.

[0254] PUSCH is sent based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field.

[0255] Figure 11This is a block diagram illustrating an apparatus 400 for PUSCH transmission according to an exemplary embodiment. For example, apparatus 400 can be any terminal such as a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0256] Reference Figure 11 The device 400 may include one or more of the following components: processing component 402, memory 404, power component 406, multimedia component 408, audio component 410, input / output (I / O) interface 412, sensor component 414, and communication component 416.

[0257] Processing component 402 typically controls the overall operation of device 400, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 402 may include one or more processors 420 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 402 may include one or more modules to facilitate interaction between processing component 402 and other components. For example, processing component 402 may include a multimedia module to facilitate interaction between multimedia component 408 and processing component 402.

[0258] Memory 404 is configured to store various types of data to support the operation of device 400. Examples of this data include instructions for any application or method operating on device 400, contact data, phonebook data, messages, pictures, videos, etc. Memory 404 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.

[0259] The power supply component 406 provides power to the various components of the device 400. The power supply component 406 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the device 400.

[0260] Multimedia component 408 includes a screen that provides an output interface between the device 400 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 408 includes a front-facing camera and / or a rear-facing camera. When the device 400 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.

[0261] Audio component 410 is configured to output and / or input audio signals. For example, audio component 410 includes a microphone (MIC) configured to receive external audio signals when device 400 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 404 or transmitted via communication component 416. In some embodiments, audio component 410 also includes a speaker for outputting audio signals.

[0262] I / O interface 412 provides an interface between processing component 402 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0263] Sensor assembly 414 includes one or more sensors for providing status assessments of various aspects of device 400. For example, sensor assembly 414 may detect the on / off state of device 400, the relative positioning of components such as the display and keypad of device 400, changes in the position of device 400 or a component of device 400, the presence or absence of user contact with device 400, the orientation or acceleration / deceleration of device 400, and temperature changes of device 400. Sensor assembly 414 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 414 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 414 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0264] Communication component 416 is configured to facilitate wired or wireless communication between device 400 and other devices. Device 400 can access wireless networks based on communication standards, such as WiFi, 2G, or 3G, or combinations thereof. In one exemplary embodiment, communication component 416 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 416 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.

[0265] In an exemplary embodiment, device 400 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.

[0266] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 404 including instructions, which can be executed by a processor 420 of device 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.

[0267] Figure 12 This is a schematic diagram of another interference measurement device according to an exemplary embodiment. For example, device 500 may be provided as a base station or a server. (Refer to...) Figure 12 The device 500 includes a processing component 522, which further includes one or more processors, and memory resources represented by memory 532 for storing instructions executable by the processing component 522, such as application programs. The application programs stored in memory 532 may include one or more modules, each corresponding to a set of instructions. Furthermore, the processing component 522 is configured to execute instructions to perform the methods described above.

[0268] Device 500 may also include a power supply component 526 configured to perform power management of device 500, a wired or wireless network interface 550 configured to connect device 500 to a network, and an input / output (I / O) interface 558. Device 500 can operate on an operating system stored in memory 532, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™, or similar.

[0269] 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.

[0270] 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.

[0271] It is further understood that the meaning of words such as “responding to” and “if” used in this disclosure depends on the context and the actual usage scenario. For example, the word “responding to” as used herein can be interpreted as “when” or “if” or “if”.

[0272] 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.

[0273] 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.

[0274] 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 Physical Uplink Shared Channel (PUSCH) transmission method, characterized in that, The method is executed by a terminal that supports simultaneous uplink STxMP transmission from multiple antenna panels. The method includes: The PUSCH configuration is determined to use a single-frequency network (SFN) transmission mode; Based on the first indication field in the downlink control information (DCI), PUSCH transmission is performed using either a single transmit / receive point (TRP) or an SFN transmission method using multiple TRPs. Specifically, the single-TRP-based PUSCH transmission involves sending PUSCH to one TRP via an antenna panel, while the multi-TRP-based SFN transmission PUSCH transmission involves sending PUSCH to different TRPs via multiple antenna panels using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the Sounding Reference Signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission method. Wherein, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode. Wherein, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode; The PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field. The PUSCH is transmitted based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field; The TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state; The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state; The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state. The code point is a fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state, and to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

2. The method of claim 1, wherein, The maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

3. The method according to any one of claims 1 or 2, characterized in that, The number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

4. The method of claim 1, wherein, The maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission method; The first SRS resource set is associated with both the first resource indication field and the second resource indication field; or, The second SRS resource set is associated with both the first resource indication field and the second resource indication field.

5. The method according to claim 1 or 4, characterized in that, The maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications; or, The maximum number of transmission layers corresponding to the SFN transmission mode is determined based on the preset rules or the protocol, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

6. The method of any one of claims 1, 2, or 4, wherein, The maximum number of transmission layers corresponding to the SFN transmission mode is 2.

7. The method of any one of claims 1, 2, or 4, wherein, The maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2. 8.A physical uplink shared channel (PUSCH) transmission method, comprising: The method is executed by a network device that supports simultaneous uplink multi-antenna panel transmission of STxMP, and the method includes: The PUSCH configuration is determined to use a single-frequency network (SFN) transmission mode; Based on the first indication field in the downlink control information (DCI), PUSCH reception is performed using either a single transmit / receive point (TRP) or an SFN transmission mode based on multiple TRPs. Specifically, the single-TRP-based PUSCH reception involves receiving PUSCH through one TRP facing one antenna panel, while the multi-TRP-based SFN transmission PUSCH reception involves receiving PUSCH through multiple antenna panels facing different TRPs using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the Sounding Reference Signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission method. Wherein, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode. Wherein, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode; The PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field. The PUSCH is transmitted based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field; The TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state; The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state; The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state. The code point is a fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state, and to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

9. The method of claim 8, wherein, The maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

10. The method according to any one of claims 8 or 9, characterized in that, The number of SRS resources corresponding to the first SRS resource set is greater than or equal to the number of SRS resources corresponding to the second SRS resource set.

11. The method of claim 8, wherein, The maximum number of transmission layers corresponding to a single TRP is different from the maximum number of transmission layers corresponding to the SFN transmission method; The first SRS resource set is associated with both the first resource indication field and the second resource indication field; or, The second SRS resource set is associated with both the first resource indication field and the second resource indication field.

12. The method according to claim 8 or 11, characterized in that, The maximum number of transport layers corresponding to a single TRP and the maximum number of transport layers corresponding to the SFN transport mode are determined based on preset rules or protocol specifications; or, The maximum number of transmission layers corresponding to the SFN transmission mode is determined based on the preset rules or the protocol, and the maximum number of transmission layers corresponding to a single TRP is the same as the maximum number of transmission layers corresponding to the SFN transmission mode.

13. The method according to any one of claims 8, 9 or 11, characterized in that, The maximum number of transmission layers corresponding to the SFN transmission mode is 2.

14. The method according to any one of claims 8, 9 or 11, characterized in that, The maximum number of transmission layers corresponding to the SFN transmission mode is greater than 2.

15. A communication device, characterized in that, The device includes: The processing unit is used to determine the transmission mode of the PUSCH configuration using a single-frequency network (SFN). The transceiver unit is used to perform PUSCH transmission based on a single transmit / receive point (TRP) or PUSCH transmission based on multiple TRPs in the SFN transmission mode, based on the first indication field of the probe reference signal in the downlink control information (DCI). Specifically, the single-TRP-based PUSCH transmission involves sending PUSCH to one TRP via an antenna panel, while the multi-TRP-based SFN transmission PUSCH transmission involves sending PUSCH to different TRPs via multiple antenna panels using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the Sounding Reference Signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission method. Wherein, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode. Wherein, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode; The PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field. The PUSCH is transmitted based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field; The TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state; The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state; The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state. The code point is a fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state, and to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

16. A communication device, characterized in that, The device includes: The processing unit is used to determine the transmission mode of the PUSCH configuration using a single-frequency network (SFN). The transceiver unit is used to perform PUSCH reception based on a single transmit / receive point (TRP) or PUSCH reception based on multiple TRPs in the SFN transmission mode, based on the first indication field in the downlink control information (DCI). Specifically, the single-TRP-based PUSCH reception involves receiving PUSCH through one TRP facing one antenna panel, while the multi-TRP-based SFN transmission PUSCH reception involves receiving PUSCH through multiple antenna panels facing different TRPs using the SFN transmission method. The first indication field is used to indicate the association between the second indication field and the Sounding Reference Signal (SRS) resource set under the SFN transmission method, and to indicate the association between the second indication field and the TRP and / or the Transmission Configuration Indication (TCI) state under the SFN transmission method. Wherein, the second indication field includes a first resource indication field, and the SRS resource set includes a first SRS resource set and a second SRS resource set; the first SRS resource set or the second SRS resource set is associated with the first resource indication field; the code point corresponding to the first resource indication field is adapted to the maximum number of transmission layers corresponding to the single TRP and the maximum number of transmission layers corresponding to the SFN transmission mode. Wherein, the code point corresponding to the first indication field is used to indicate the association between the second indication field and the SRS resource set, and to indicate the association between the second indication field and the TRP and / or TCI status under the SFN transmission mode; The PUSCH is transmitted based on a non-codebook, and the second indication field is the Probe Reference Signal Resource Indicator (SRI) indication field. The PUSCH is transmitted based on the codebook, and the second indication field is the SRI indication field and / or the precoding matrix indication TPMI indication field; The TRP includes a first TRP and a second TRP, the TCI state includes a first TCI state and a second TCI state, and the code point is used to indicate at least one of the following associations: The code point is a first code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state; The code point is a second code point, used to indicate that the first resource indication field is associated with the second SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state; The code point is a third code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the first TRP and / or the first TCI state, used to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the second TRP and / or the second TCI state. The code point is a fourth code point, used to indicate that the first resource indication field is associated with the first SRS resource set, and to indicate that the first resource indication field is associated with the second TRP and / or the second TCI state, and to indicate that the second resource indication field is associated with the second SRS resource set, and to indicate that the second resource indication field is associated with the first TRP and / or the first TCI state.

17. A communication device, characterized in that, include: processor; Memory used to store processor-executable instructions; The processor is used to schedule the instructions stored in the memory to execute the method according to any one of claims 1 to 7 or 8 to 14.

18. A communication system, characterized in that, The system includes a terminal and a network device; the terminal is used to execute the PUSCH transmission method according to any one of claims 1 to 7; the network device is used to execute the method according to any one of claims 8 to 14.

19. A storage medium, characterized in that, The storage medium stores instructions that, when executed by the terminal's processor, enable the terminal to perform the method described in any one of claims 1 to 7; or, When the instructions in the storage medium are executed by the processor of the network device, the network device is able to perform the method of any one of claims 8 to 14.

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