Communication method and apparatus

Abstract

Disclosed in the embodiments of the present application are a communication method and apparatus. The method comprises: determining whether a first uplink grant and a second uplink grant correspond to the same access network device, wherein the first uplink grant and the second uplink grant overlap each other in terms of time-domain position; if the first uplink grant and the second uplink grant correspond to the same first access network device and the second uplink grant also corresponds to a second access network device, determining a first priority of the first uplink grant and a second priority of the second uplink grant; and if the first priority is higher than the second priority, sending first data to the first access network device by means of the first uplink grant, and sending second data to the second access network device by means of the second uplink grant. By means of the embodiments of the present application, the utilization rate of communication resources can be improved, and the communication capacity and reliability can be improved.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application with application number 202311291497.2 filed with the State Intellectual Property Office of China on September 28, 2023, and priority to the Chinese patent application with the invention name “A Communication Method and Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] In mobile communication systems, terminal devices can be served by multiple transmission reception points (TRPs). Some terminal devices have strong uplink transmission capabilities, such as simultaneous transmission across multiple panels (STxMP) user equipment (UE), which can use two uplink grants that overlap in time domain locations to send uplink data to the TRP. For such UEs, existing technical solutions use only a single, high-priority uplink grant to send uplink data, resulting in reduced communication resource utilization, capacity, and reliability.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a communication method and apparatus that can improve communication resource utilization, and increase communication capacity and reliability.

[0006] In a first aspect, an embodiment of the present application provides a communication method, which is applied to a terminal device, or a chip or circuit configured in the terminal device, including:

[0007] Determine whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and there is a time domain overlap between the first uplink authorization and the second uplink authorization; if the first uplink authorization and the second uplink authorization correspond to different access network devices, send the first data to the first access network device through the first uplink authorization, and send the second data to the second access network device through the second uplink authorization; or if the first uplink authorization and the second uplink authorization correspond to the same access network device, send the third data to the third access network device through the first uplink authorization, or send the fourth data to the third access network device through the second uplink authorization.

[0008] For multiple uplink authorizations with overlapping time domain positions, if the multiple uplink authorizations correspond to different access network devices, uplink data can be sent to the multiple access network devices simultaneously through the multiple uplink authorizations, thereby improving communication resource utilization, communication capacity and reliability.

[0009] In one possible design, it is determined whether the first identifier associated with the first uplink authorization is the same as the second identifier associated with the second uplink authorization; if the first identifier is the same as the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first identifier is different from the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0010] By using the identity identifier of the access network device associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0011] In one possible design, the first identifier or the second identifier is an identifier of a control resource pool.

[0012] In one possible design, it is determined whether a first transmission configuration indication state TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0013] By using the TCI state associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0014] In one possible design, it is determined whether a first reference signal associated with the first uplink authorization is the same as a second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0015] By using the reference signal associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0016] In one possible design, it is determined whether a first reference signal set associated with the first uplink authorization is the same as a second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0017] By using the reference signal set associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0018] In one possible design, a first priority of a first uplink authorization and a second priority of a second uplink authorization are determined; based on the first priority and the second priority, third data is sent to a third access network device via the first uplink authorization, or fourth data is sent to the third access network device via the second uplink authorization. When the first uplink authorization and the second uplink authorization correspond to the same access network device and there is overlap in their time domain locations, the uplink data is preferentially sent via the first uplink authorization or the second uplink authorization based on the priorities of the first uplink authorization and the second uplink authorization, thereby ensuring successful uplink data transmission.

[0019] In one possible design, when the first priority is higher than the second priority, the terminal device sends third data to the third access network device through the first uplink authorization; when the second priority is higher than the first priority, the terminal device sends fourth data to the third access network device through the second uplink authorization.

[0020] In one possible design, the priority of the first logical channel of the third data and the priority of the second logical channel of the fourth data are obtained; based on the priority of the first logical channel and the priority of the second logical channel, a first priority of the first uplink authorization and a second priority of the second uplink authorization are determined. The priority of the uplink authorization is determined based on the priority of the logical channel of the uplink data transmitted by the uplink authorization, and then, based on the priority of the uplink authorization, the uplink data is preferentially sent through the first uplink authorization or the second uplink authorization to ensure successful uplink data transmission.

[0021] In one possible design, the terminal device receives an uplink authorization provided by the access network device, but the uplink authorization corresponds to two access network devices, or corresponds to two beam directions, two TCI States, or two TCI State Lists, two reference signals, or two reference signal sets. At this time, the terminal device sends uplink data to the first access network device and the second access network device respectively through the one uplink authorization. It can be understood that the one uplink authorization (denoted as authorization x) is equivalent to two uplink authorizations (denoted as authorization x-1 and authorization x-2), and the two uplink authorizations correspond to the first access network device and the second access network device respectively. When the terminal device has another uplink authorization (denoted as authorization y) that overlaps with the uplink authorization x in the time domain, the terminal device can also use the above rules to send uplink data.

[0022] In one possible design, the first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

[0023] In a second aspect, an embodiment of the present application provides a communication method, which is applied to a terminal device, or a chip or circuit configured in the terminal device, including:

[0024] Determine whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and there is a time domain overlap between the first uplink authorization and the second uplink authorization; if the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to the second access network device, determine the first priority of the first uplink authorization and the second priority of the second uplink authorization; if the first priority is higher than the second priority, send the first data to the first access network device through the first uplink authorization, and send the second data to the second access network device through the second uplink authorization.

[0025] For multiple uplink authorizations with overlapping time domain positions, if the high-priority uplink authorization and the low-priority uplink authorization correspond to the same access network device, and the low-priority uplink authorization also corresponds to other access network devices, the low-priority uplink authorization can be used to send uplink data to other access network devices, thereby improving communication resource utilization, communication capacity and reliability.

[0026] In one possible design, the second data and the third data can be packaged according to the first parameter, and the first parameter is used to indicate the transmission block size packaged according to the second uplink authorization corresponding to the first access network device and the second access network device, and the third data and the second data belong to the same transmission block. Since the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, it is impossible to send uplink data to the first access network device through the second uplink authorization. The terminal device can send the first data to the first access network device through the first uplink authorization, and send the second data to the second access network device through the second uplink authorization. Subsequently, the third data is sent to the first access network device or the second access network device through the second uplink authorization of the next duration of the second uplink authorization.

[0027] In one possible design, since the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, it is impossible to send uplink data through the second uplink authorization corresponding to the first access network device. The terminal device can obtain the second data by packetizing according to the second parameter, and the second parameter is used to indicate the transmission block size for packetizing according to the second uplink authorization corresponding to the second access network device. In this way, the first data is sent to the first access network device through the first uplink authorization, and the second data is sent to the second access network device through the second uplink authorization corresponding to the second access network device, without using the second uplink authorization corresponding to the first access network device.

[0028] In one possible design, since the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, it is impossible to send uplink data through the second uplink authorization corresponding to the first access network device. If the packet is assembled according to the first parameter, the content payload is large, and the uplink data is sent only through the second uplink authorization corresponding to the second access network device, erroneous decoding may occur, resulting in data transmission failure. Therefore, the terminal device can determine whether the packet assembly according to the first parameter is completed; if the packet assembly according to the first parameter is not completed, the second data is obtained by performing packet assembly according to the second parameter. In this way, the first data is sent to the first access network device through the first uplink authorization, and the second data is sent to the second access network device through the second uplink authorization corresponding to the second access network device, without using the second uplink authorization corresponding to the first access network device.

[0029] In one possible design, if packet assembly according to the first parameter is complete, the first data can be sent to the first access network device only through the first uplink authorization, and the second uplink authorization of the next duration can be waited for. If the priority of the second uplink authorization of the next duration is higher than that of other uplink authorizations, the second data can be sent through the second uplink authorization of the next duration. Alternatively, after waiting for the second uplink authorization of the next duration, the second data can be sent preferentially through the second uplink authorization of the next duration. That is, there is no need to perform priority determination again, and the second uplink authorization of the next duration for the second data to be sent is regarded as the uplink authorization with the highest priority.

[0030] In one possible design, if the first uplink grant and the second uplink grant correspond to the same first access network device, the second uplink grant also corresponds to the second access network device, and the first priority of the first uplink grant is lower than or equal to the second priority of the second uplink grant, the second data is sent to the second access network device via the second uplink grant, and fourth data is sent to the first access network device via the second uplink grant, where the fourth data and the second data belong to the same transmission block. The first data is not sent to the first access network device via the first uplink grant, or the first data is sent after waiting for the first uplink grant of the next duration of the first uplink grant.

[0031] In one possible design, it is determined whether a first transmission configuration indication state TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0032] By using the TCI state associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0033] In one possible design, it is determined whether a first reference signal associated with the first uplink authorization is the same as a second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0034] By using the reference signal associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0035] In one possible design, it is determined whether a first reference signal set associated with the first uplink authorization is the same as a second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0036] By using the reference signal set associated with the uplink authorization, it is determined whether the first uplink authorization and the second uplink authorization correspond to different access network devices, thereby improving the accuracy of determining the uplink authorization.

[0037] In one possible design, the first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

[0038] In a third aspect, an embodiment of the present application provides a communication device, the communication device comprising:

[0039] a processing module, configured to determine whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions;

[0040] a sending module, configured to, if the first uplink authorization and the second uplink authorization correspond to different access network devices, send first data to the first access network device through the first uplink authorization, and send second data to the second access network device through the second uplink authorization; or

[0041] The sending module is also used to send third data to the third access network device through the first uplink authorization, or to send fourth data to the third access network device through the second uplink authorization if the first uplink authorization and the second uplink authorization correspond to the same access network device.

[0042] In one possible design, the processing module is also used to determine whether the first identifier associated with the first uplink authorization is the same as the second identifier associated with the second uplink authorization; if the first identifier is the same as the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first identifier is different from the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0043] In one possible design, the first identifier or the second identifier is an identifier of a control resource pool.

[0044] In one possible design, the processing module is further used to determine whether a first transmission configuration indication state TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0045] In one possible design, the processing module is also used to determine whether a first reference signal associated with the first uplink authorization is the same as a second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0046] In one possible design, the processing module is also used to determine whether the first reference signal set associated with the first uplink authorization is the same as the second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0047] In one possible design, the processing module is also used to determine the first priority of the first uplink authorization and the second priority of the second uplink authorization; based on the first priority and the second priority, send third data to the third access network device through the first uplink authorization, or send fourth data to the third access network device through the second uplink authorization.

[0048] In one possible design, the processing module is also used to obtain the priority of the first logical channel of the third data and the priority of the second logical channel of the fourth data; based on the priority of the first logical channel and the priority of the second logical channel, determine the first priority of the first uplink authorization and the second priority of the second uplink authorization.

[0049] In one possible design, the first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

[0050] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the first aspect above, and the repeated parts will be omitted.

[0051] In a fourth aspect, an embodiment of the present application provides a communication device, the communication device comprising:

[0052] a processing module, configured to determine whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions;

[0053] a sending module, configured to determine a first priority of the first uplink authorization and a second priority of the second uplink authorization if the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to a second access network device;

[0054] The sending module is further used to send first data to the first access network device through the first uplink authorization if the first priority is higher than the second priority, and send second data to the second access network device through the second uplink authorization.

[0055] In one possible design, the processing module is further configured to group the second data and the third data according to a first parameter, where the first parameter is used to indicate a transport block size for grouping the data according to the second uplink grant corresponding to the first access network device and the second access network device, and the third data and the second data belong to the same transport block.

[0056] The sending module is further used to send the third data to the first access network device or the second access network device through a second uplink authorization of the next duration of the second uplink authorization.

[0057] In one possible design, the processing module is also used to package the second data according to a second parameter, where the second parameter is used to indicate the transmission block size for packaging according to the second uplink authorization corresponding to the second access network device.

[0058] In one possible design, the processing module is also used to determine whether packet assembly according to a first parameter is completed, where the first parameter is used to indicate the transmission block size for packet assembly according to the second uplink authorization corresponding to the first access network device and the second access network device; if packet assembly according to the first parameter is not completed, packet assembly is performed according to the second parameter to obtain the second data.

[0059] In one possible design, the sending module is also used to send the second data to the second access network device through the second uplink authorization if the first priority is lower than or equal to the second priority, and to send fourth data to the first access network device through the second uplink authorization, and the fourth data and the second data belong to the same transmission block.

[0060] In one possible design, the processing module is further used to determine whether a first transmission configuration indication state TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0061] In one possible design, the processing module is also used to determine whether a first reference signal associated with the first uplink authorization is the same as a second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0062] In one possible design, the processing module is also used to determine whether the first reference signal set associated with the first uplink authorization is the same as the second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0063] In one possible design, the first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

[0064] The operations and beneficial effects performed by the communication device can refer to the method and beneficial effects described in the second aspect above, and the repeated parts will be omitted.

[0065] In a fifth aspect, the present application provides a communication device, which includes a processor and a memory, wherein the memory is used to store a computer program; the processor is used to execute the computer program stored in the memory, so that the communication device performs a method as described in any one of the first and second aspects.

[0066] In a sixth aspect, the present application provides a communication device, which may be a terminal device, a device in a terminal device, or a device that can be used in conjunction with a terminal device. The communication device may also be a chip system. The communication device may execute the methods described in the first and second aspects. The functions of the communication device may be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above functions. The module may be software and / or hardware. The operations and beneficial effects performed by the communication device may refer to the methods and beneficial effects described in the first and second aspects above, and any repetitions will not be repeated.

[0067] In a seventh aspect, the present application provides a computer-readable storage medium for storing a computer program, which, when executed, enables the method described in any one of the first to second aspects to be implemented.

[0068] In an eighth aspect, the present application provides a computer program product comprising a computer program, which, when executed, enables the method described in any one of the first to second aspects to be implemented.

[0069] In a ninth aspect, an embodiment of the present application provides a communication system, which includes at least one terminal device and at least one access network device, and the terminal device is used to execute the steps in the above-mentioned first and second aspects.

[0070] In a tenth aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is used to communicate with an external device or an internal device, and the processor is used to implement the methods of the above aspects.

[0071] In one possible design, the chip may further include a memory storing a computer program or instructions, and the processor is configured to execute the computer program or instructions stored in the memory, or other programs or instructions. When the computer program or instructions are executed, the processor is configured to implement the aforementioned various aspects of the method.

[0072] In one possible design, the chip can be integrated into the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background technology, the accompanying drawings required in the embodiments of the present application or the background technology will be described below.

[0074] FIG1 is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0075] FIG2 is a schematic diagram of a multi-TRP communication scenario;

[0076] FIG3 is a schematic diagram of an uplink transmission;

[0077] FIG4 a is a schematic diagram of an operating mode;

[0078] FIG4 b is a schematic diagram of another working mode;

[0079] FIG5 is a flow chart of a communication method provided in an embodiment of the present application;

[0080] FIG6 is a schematic diagram of uplink data transmission;

[0081] FIG7 is a flow chart of a communication method provided in an embodiment of the present application;

[0082] FIG8 is a schematic diagram of another uplink data transmission;

[0083] FIG9 is a schematic diagram of another uplink data transmission;

[0084] FIG10 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0085] FIG11 is a schematic structural diagram of a terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0086] As shown in Figure 1, Figure 1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application. The communication system may include an access network device and a terminal device. Among them, the access network device may include a main base station and a slave base station, and the coverage of the service cell (carrier) of one or more slave base stations is within the coverage of the main base station. The terminal device may be located within the coverage of one or more service cells provided by the access network device. When there are multiple cells providing services for the terminal device, the terminal device may operate in accordance with carrier aggregation (CA), dual connectivity (DC) or coordinated multi-point transmission mode, wherein one or more service cells provide at least one parameter set (numerology) and provide wireless resources for the terminal device at the same time.

[0087] A terminal device, which can be referred to as user equipment (UE), mobile station (MS), or mobile terminal (MT), refers to a device that provides voice and / or data connectivity to a user. Examples include handheld devices and in-vehicle devices with wireless connectivity. Currently, some examples of terminals include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, and wireless terminals in smart homes. The following descriptions all refer to terminal devices as UEs.

[0088] Access network equipment refers to the radio access network (RAN) node (or device) that connects terminal devices to the wireless network, also known as a base station. Currently, some examples of RAN nodes include: evolved Node B (gNB), transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or HNB), base band unit (BBU), or wireless fidelity (Wi-Fi) access point (AP). In addition, in a network architecture, access network equipment may include centralized unit (CU) nodes, distributed unit (DU) nodes, or RAN equipment that includes both CU and DU nodes. Among them, the RAN equipment including CU nodes and DU nodes splits the protocol layer of the eNB in ​​the long term evolution (LTE) system, placing the functions of some protocol layers in the central control of the CU, and distributing the functions of the remaining part or all of the protocol layers in the DU, which is centrally controlled by the CU.

[0089] The communication system can be applicable to a long term evolution (LTE) system, a universal mobile telecommunications system (UMTS) system, a code division multiple access (CDMA) system, a wireless local area network (WLAN) or a fifth generation mobile communication system (5G) or a next generation wireless communication system, etc.

[0090] The following description assumes that the terminal device is the UE and the access network device is the TRP:

[0091] As shown in Figure 2, Figure 2 is a schematic diagram of a multi-TRP communication scenario. In a mobile communication system, a UE can be provided with communication services by multiple TRPs (for example, multiple TRPs), and multiple TRPs can communicate with each other. The UE uses different beam directions to transmit and receive data with multiple TRPs. If the UE (such as an STxMP UE) has the ability to send uplink signals in different beam directions at the same time, the UE can perform uplink transmission with multiple TRPs at the same time. When there is time domain overlap in the uplink to-be-transmitted signals corresponding to different TRPs, it is worth studying how the UE selects the uplink to-be-transmitted signal.

[0092] Taking a single TRP communication scenario as an example, the UE can send uplink data to the TRP through an uplink grant (UL grant). The uplink grant is used to indicate the time domain position, frequency domain position and transport block size used by the UE when sending uplink data. The uplink grant may include a dynamic uplink grant (dynamic UL grant, DG) and a pre-configured uplink grant (pre-configured UL grant, CG). The DG is provided to the UE by the TRP through the physical downlink control channel (physical downlink control channel, PDCCH), and the moment when the UE uses the DG can be dynamically indicated by the TRP. CG is a periodic resource, and the TRP indicates the period and other parameters of the CG to the UE through radio resource control (RRC) signaling, that is, the moment when the UE uses the CG is relatively static, and the opportunity to use it occurs periodically. The periodic CG uplink grant resource can also be called a CG opportunity / occasion.

[0093] When the UE determines that a CG and a DG overlap in time domain resources, because some UEs are only capable of using one uplink grant to send uplink data, or the TRP can only successfully receive uplink data on the resources of one uplink grant, the UE needs to select an uplink grant to send (for example, the uplink grant with high priority) and temporarily not use the other uplink grant (for example, the uplink grant with low priority). This process is called intra-UE prioritization.

[0094] For example, as shown in Figure 3, Figure 3 is a schematic diagram of uplink transmission. On the first CG occasion, the UE sends uplink data through the CG, and the uplink data can be a media access control (MAC) protocol data unit (PDU) #1. Then on the second CG occasion, the UE can send uplink data (MAC PDU#2) through the DG and send uplink data (MAC PDU#3) through the CG, but because there is a time domain overlap between the CG and the DG, the intra-UE priority selection technology is performed. If the priority of the MAC PDU#2 corresponding to the DG is higher than the priority of the MAC PDU#3 corresponding to the CG, the UE will take the DG as a high priority and send the MAC PDU#2 through the DG; take the CG as a low priority and do not use this CG occasion.

[0095] The UE determines the priority of the uplink grant based on the data contained in the MAC PDU. For example, MAC PDU#2 includes data for logical channel (LCH) 1, and MAC PDU#3 includes data for LCH5, and each LCH can be pre-configured with a priority. For example, the pre-configured priority of LCH1 is higher than the priority of LCH5. Therefore, the UE can determine that the priority of MAC PDU#2 is higher than the priority of MAC PDU#3 based on the priority of the LCH, and further determine that the priority of the uplink grant corresponding to MAC PDU#2 is higher than the priority of the uplink grant corresponding to MAC PDU#3. Furthermore, the UE uses the uplink grant with the higher priority to send uplink data.

[0096] Some terminal devices have strong uplink transmission capabilities, such as STxMP UEs, which can use two uplink grants that overlap in time domain to send uplink data to the TRP. For such UEs, if the above technical solution is adopted, only the single, high-priority uplink grant will be used to send uplink data, resulting in reduced communication resource utilization, capacity, and reliability.

[0097] The following describes two working modes in multi-TRP communication scenarios:

[0098] Working mode 1: Each antenna panel of the UE can send a complete transport block (TB), also known as a codeword, or MAC PDU. The following description uses the transport block as the TB. After each TRP receives a TB, it can receive and decode the received TB. As shown in Figure 4a, Figure 4a is a schematic diagram of a working mode. TRP1 uses downlink control information (DCI) 1 to provide uplink authorization 1 to the UE, where the DCI is carried on the physical downlink control channel (PDCCH). TRP2 uses DCI2 to provide uplink authorization 2 to the UE, and the UE uses uplink authorization 1 to send uplink data TB1 to TRP1; the UE uses uplink authorization 2 to send uplink data TB2 to the TRP.

[0099] Operating Mode 2: The UE's multiple antenna panels collaborate to transmit a single TB. For example, a complete TB is divided into two data streams. The UE uses two antenna panels to transmit the first and second streams of the TB, respectively. After TRP1 receives the first stream and TRP2 receives the second stream, they combine the first and second streams to recover the complete TB for decoding. Figure 4b illustrates another operating mode. TRP1 uses DCI to send an uplink grant to the UE. This uplink grant includes an uplink grant corresponding to TRP1 (CG to TRP1) and an uplink grant corresponding to TRP2 (CG to TRP2). The UE transmits the first stream of TB1 (part 1 in the figure) using the uplink grant corresponding to TRP1 and the second stream of TB1 (part 2 in the figure) using the uplink grant corresponding to TRP2. If only TRP1 receives the first stream of TB1 and TRP2 does not receive the second stream of TB1, TRP1 and TRP2 cannot combine to form a complete TB1, resulting in data transmission failure. Similarly, if only TRP2 receives the second stream of TB1 and TRP1 does not receive the first stream of TB1, data transmission also fails.

[0100] As shown in Figure 5, Figure 5 is a flow chart of a communication method provided by an embodiment of the present application. This embodiment of the present application can be executed by a terminal device, which uses working mode 1 for data transmission, that is, each antenna panel of the terminal device sends a complete transmission block. The method mainly includes the following steps:

[0101] S501: Determine whether a first uplink authorization and a second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions.

[0102] In one implementation, it can be determined whether the first identifier (identity, ID) associated with the first uplink authorization is the same as the second identifier associated with the second uplink authorization; if the first identifier is the same as the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first identifier is different from the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0103] The first identifier or the second identifier is the identity information of the access network device. For example, the first identifier or the second identifier is the identifier of the control resource set pool (CoresetPoolIndex), and one access network device corresponds to one CoresetPoolIndex.

[0104] In another implementation, it is determined whether a first transmission configuration indication (TCI) state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0105] Among them, the first TCI state can be used to indicate the beam direction associated with the first uplink authorization, and the second TCI state can be used to indicate the beam direction associated with the second uplink authorization. Different beam directions correspond to different access network devices, and the same beam direction corresponds to the same access network device. For example, TRP1 corresponds to TCI State#1 or TCI State List (List)#1, and TRP2 corresponds to TCI State#2 or TCI State List#2. When the TCI State associated with uplink authorization 1 is different from the TCI State associated with uplink authorization 2, or is in a different TCI State List, the UE determines that uplink authorization 1 and uplink authorization 2 correspond to different beam directions, that is, to different TRPs. When the TCI State associated with uplink authorization 1 is the same as the TCI State associated with uplink authorization 2, or is in the same TCI State List, the UE determines that uplink authorization 1 and uplink authorization 2 correspond to the same beam direction, that is, to the same TRP.

[0106] In another implementation, it is determined whether the first reference signal associated with the first uplink authorization is the same as the second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0107] The reference signal may include a downlink reference signal and an uplink reference signal. The downlink reference signal may be a synchronization signal and a physical broadcast channel block (SSB) or a channel state information reference signal (CSI-RS), and the uplink reference signal may be a sounding reference signal (SRS). For example, uplink grant 1 is associated with SSB1, and uplink grant 2 is associated with SSB2. If SSB1 and SSB2 are the same, uplink grant 1 and uplink grant 2 correspond to the same TRP. If SSB1 and SSB2 are different, uplink grant 1 and uplink grant 2 correspond to different TRPs.

[0108] In another implementation, it is determined whether the first reference signal set associated with the first uplink authorization is the same as the second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0109] For example, uplink authorization 1 is associated with SSB List 1, and uplink authorization 2 is associated with SSB List 2. If SSB List 1 and SSB List 2 are the same SSB List, uplink authorization 1 and uplink authorization 2 correspond to the same TRP. If SSB List 1 and SSB List 2 are different SSB Lists, uplink authorization 1 and uplink authorization 2 correspond to different TRPs.

[0110] The time domain overlap between the first uplink grant and the second uplink grant indicates that a duration of the first uplink grant overlaps or partially overlaps with a duration of the second uplink grant.

[0111] The first uplink authorization is DG or CG, and the second uplink authorization is DG or CG.

[0112] S502: If the first uplink authorization and the second uplink authorization correspond to different access network devices, the terminal device sends first data to the first access network device using the first uplink authorization, and sends second data to the second access network device using the second uplink authorization. The first uplink authorization corresponds to the first access network device, and the second uplink authorization corresponds to the second access network device.

[0113] It can be understood that if multiple uplink authorizations have overlapping time domain positions and the multiple uplink authorizations correspond to different access network devices, uplink data can be sent to multiple access network devices simultaneously through the multiple uplink authorizations.

[0114] It can also be understood as: if multiple uplink authorizations have overlapping time domain positions and multiple uplink authorizations correspond to different access network devices, the terminal device does not need to judge the priority of multiple uplink authorizations, and can send uplink data to multiple access network devices at the same time through multiple uplink authorizations.

[0115] S503: If the first uplink authorization and the second uplink authorization correspond to the same access network device, the terminal device sends third data to a third access network device using the first uplink authorization, or sends fourth data to the third access network device using the second uplink authorization. The first uplink authorization and the second uplink authorization both correspond to the third access network device.

[0116] Specifically, the first priority of the first uplink authorization and the second priority of the second uplink authorization can be determined. Based on the first priority and the second priority, the third data is sent to the third access network device through the first uplink authorization, or the fourth data is sent to the third access network device through the second uplink authorization. Furthermore, when the first priority is higher than the second priority, the terminal device sends the third data to the third access network device through the first uplink authorization; when the second priority is higher than the first priority, the terminal device sends the fourth data to the third access network device through the second uplink authorization.

[0117] Furthermore, the priority of the first logical channel of the third data and the priority of the second logical channel of the fourth data can be obtained; the first priority of the first uplink authorization and the second priority of the second uplink authorization can be determined based on the priority of the first logical channel and the priority of the second logical channel. If the priority of the first logical channel is higher than the priority of the second logical channel, the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization. If the priority of the first logical channel is lower than the priority of the second logical channel, the first priority of the first uplink authorization is lower than the second priority of the second uplink authorization. Among them, the method of judging the first priority of the first uplink authorization and the second priority of the second uplink authorization can refer to the above description and will not be repeated here.

[0118] As shown in Figure 6, Figure 6 is a schematic diagram of uplink data transmission. The UE has three uplink grants DG, CG1, and CG2, and the three uplink grants DG, CG1, and CG2 have overlapping time domain positions. The UE determines that DG corresponds to TRP1 and CG1 corresponds to TRP1, and CG2 corresponds to TRP2. Since DG and CG1 correspond to the same TRP1, it is necessary to select one of the uplink grants to send data. Therefore, the priority of DG and the priority of CG1 can be judged. When it is determined that the priority of DG is higher than the priority of CG1, the UE can use DG to send uplink data to TRP1. Since there is no other uplink grant corresponding to TRP2 with overlapping time domain positions for CG2 corresponding to TRP2, the UE can use CG2 to send uplink data to TRP2.

[0119] Optionally, if the first uplink authorization and the second uplink authorization do not overlap in time domain location, the terminal device may send the first data to the first access network device via the first uplink authorization, and send the second data to the second access network device via the second uplink authorization. That is, if there is no time domain location overlap between multiple uplink authorizations, regardless of whether the multiple uplink authorizations correspond to the same access network device, uplink data may be sent to the access network device via multiple uplink authorizations.

[0120] It should be understood that in working mode one, the terminal device can send uplink data to the first access network device and the second access network device respectively through two uplink authorizations. In a possible implementation, the access network device can provide an uplink authorization to the terminal device, but the uplink authorization corresponds to two access network devices, or corresponds to two beam directions, two TCI States, or two TCI State Lists, two reference signals or two reference signal sets. At this time, the terminal device sends uplink data to the first access network device and the second access network device respectively through the one uplink authorization. It can be understood that the one uplink authorization (denoted as authorization x) is equivalent to two uplink authorizations (denoted as authorization x-1 and authorization x-2), and the two uplink authorizations correspond to the first access network device and the second access network device respectively. When the terminal device has another uplink authorization (denoted as authorization y) that overlaps with the uplink authorization x in the time domain, the terminal device can also use the rules in the embodiment of the present application, use S501 to determine the access network device corresponding to the uplink authorization x-1, uplink authorization x-2, and uplink authorization y, and then execute S502 or S503.

[0121] In an embodiment of the present application, for multiple uplink authorizations with overlapping time domain positions, if the multiple uplink authorizations correspond to different access network devices, uplink data can be sent to the multiple access network devices simultaneously through the multiple uplink authorizations, thereby improving the utilization of communication resources and improving the communication capacity and reliability.

[0122] As shown in Figure 7, Figure 7 is a flow chart of a communication method provided by an embodiment of the present application. This embodiment of the present application can be executed by a terminal device, which uses working mode 2 for data transmission, that is, multiple antenna panels of the terminal device cooperate to send a transmission block. The method mainly includes the following steps:

[0123] S701: Determine whether a first uplink authorization and a second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions.

[0124] In one implementation, it is determined whether a first TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0125] Among them, the first TCI state can be used to indicate the beam direction associated with the first uplink authorization, and the second TCI state can be used to indicate the beam direction associated with the second uplink authorization. Different beam directions correspond to different access network devices, and the same beam direction corresponds to one access network device. For example, TRP1 corresponds to TCI State#1 or TCI State List (List)#1, and TRP2 corresponds to TCI State#2 or TCI State List#2. When the TCI State associated with uplink authorization 1 is different from the TCI State associated with uplink authorization 2, or is in a different TCI State List, the UE determines that uplink authorization 1 and uplink authorization 2 correspond to different beam directions, that is, to different TRPs. When the TCI State associated with uplink authorization 1 is the same as the TCI State associated with uplink authorization 2, or is in the same TCI State List, the UE determines that uplink authorization 1 and uplink authorization 2 correspond to the same beam direction, that is, to the same TRP.

[0126] In another implementation, it is determined whether the first reference signal associated with the first uplink authorization is the same as the second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0127] The reference signal may include a downlink reference signal and an uplink reference signal. The downlink reference signal may be a synchronization signal and a physical broadcast channel block (SSB) or a channel state information reference signal (CSI-RS), and the uplink reference signal may be a sounding reference signal (SRS). For example, uplink grant 1 is associated with SSB1, and uplink grant 2 is associated with SSB2. If SSB1 and SSB2 are the same, uplink grant 1 and uplink grant 2 correspond to the same TRP. If SSB1 and SSB2 are different, uplink grant 1 and uplink grant 2 correspond to different TRPs.

[0128] In another implementation, it is determined whether the first reference signal set associated with the first uplink authorization is the same as the second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0129] For example, uplink authorization 1 is associated with SSB List 1, and uplink authorization 2 is associated with SSB List 2. If SSB List 1 and SSB List 2 are the same SSB List, uplink authorization 1 and uplink authorization 2 correspond to the same TRP. If SSB List 1 and SSB List 2 are different SSB Lists, uplink authorization 1 and uplink authorization 2 correspond to different TRPs.

[0130] The time domain overlap between the first uplink grant and the second uplink grant indicates that a duration of the first uplink grant overlaps or partially overlaps with a duration of the second uplink grant.

[0131] The first uplink authorization is DG or CG, and the second uplink authorization is DG or CG.

[0132] S702: If the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to a second access network device, determine a first priority of the first uplink authorization and a second priority of the second uplink authorization.

[0133] Optionally, if the first uplink authorization and the second uplink authorization correspond to different access network devices, the first data may be sent to the first access network device via the first uplink authorization, and the second data may be sent to the second access network device via the second uplink authorization. That is, for multiple uplink authorizations with overlapping time domain positions, if the multiple uplink authorizations correspond to different access network devices, the uplink data may be sent to the multiple access network devices simultaneously via the multiple uplink authorizations.

[0134] S703: If the first priority is higher than the second priority, first data is sent to the first access network device through the first uplink authorization, and second data is sent to the second access network device through the second uplink authorization.

[0135] In one implementation, the second data and the third data can be obtained by packetizing according to the first parameter, wherein the first parameter is used to indicate the transmission block size for packetizing according to the second uplink authorization corresponding to the first access network device and the second access network device, and the third data and the second data belong to the same transmission block. Since the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, it is impossible to send uplink data to the first access network device through the second uplink authorization. The terminal device can send the first data to the first access network device through the first uplink authorization, and send the second data to the second access network device through the second uplink authorization. Subsequently, the third data is sent to the first access network device or the second access network device through the second uplink authorization of the next duration. The first parameter can be configured by the access network device through an RRC message or indicated by a DCI, and the first parameter includes at least one of the following: TB size, modulation and coding mode.

[0136] Among them, the second uplink authorization can be a periodic resource, for example, the second uplink authorization is CG. The second uplink authorization of the next duration is the uplink authorization resource of the next period. The second uplink authorization of the next duration can be the next uplink authorization corresponding to the same hybrid automatic repeat request (HARQ) process ID. For example, CG opportunity 1 is the resource of the first period, corresponding to HARQ process 1; CG opportunity 2 is the resource of the second period, corresponding to HARQ process 2. However, since CG opportunity 1 and CG opportunity 2 correspond to different HARQ processes, the UE does not use CG opportunity 2 to send the third data, and needs to wait for the resources of the third period (such as CG opportunity 3). If CG opportunity 3 corresponds to HARQ process 1, CG opportunity 3 can be used to send the third data.

[0137] As shown in Figure 8, Figure 8 is a schematic diagram of another uplink data transmission. The UE has two uplink grants DG and CG, and the DG and CG have overlapping time domain positions. The UE determines that DG corresponds to TRP1 and CG1 corresponds to TRP1 and TRP2. The UE packages TB1 according to DG, and packages the first stream of TB2 and the second stream of TB2 according to CG to TRP1 and CG to TRP2. Since CG and DG correspond to the same TRP1 and the priority of DG is higher than the priority of CG, the UE can send TB1 to TRP1 through DG in the current duration, and send the second stream of TB2 to TRP2 through CG to TRP2, but the UE cannot send the first stream of TB2 to TRP1 through CG to TRP1. The UE can wait for the next duration to send the first stream of TB2 to TRP1 through CG to TRP1, or send the first stream of TB2 to TRP2 through CG to TRP2.

[0138] In another implementation, since the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, it is impossible to send uplink data through the second uplink authorization corresponding to the first access network device. The terminal device can obtain the second data by packetizing according to the second parameter, and the second parameter is used to indicate the transmission block size for packetizing according to the second uplink authorization corresponding to the second access network device or the first access network device. In this way, the first data is sent to the first access network device through the first uplink authorization, and the second data is sent to the second access network device through the second uplink authorization corresponding to the second access network device, without using the second uplink authorization corresponding to the first access network device. The second parameter can be configured by the access network device through an RRC message or indicated by a DCI, and the second parameter includes at least one of the following: TB size, modulation and coding method.

[0139] As shown in Figure 8, the UE has two uplink grants, DG and CG, and DG and CG overlap in time domain. The UE determines that DG corresponds to TRP1, and CG1 corresponds to TRP1 and TRP2. Since CG and DG correspond to the same TRP1, and the priority of DG is higher than that of CG, the UE cannot send uplink data to TRP1 through CG to TRP1. The UE can package according to DG to obtain TB1, and package according to CG to TRP2 based on the second parameter to obtain TB2. In this way, the UE can simultaneously send TB1 to TRP1 through DG and send TB2 to TRP2 through CG.

[0140] In another implementation, because the first and second uplink grants correspond to the same first access network device, and the first priority of the first uplink grant is higher than the second priority of the second uplink grant, uplink data cannot be sent via the second uplink grant corresponding to the first access network device. If packetization is performed according to the first parameters, the content payload is relatively large. Sending the uplink data only via the second uplink grant corresponding to the second access network device may result in decoding errors, leading to data transmission failure. Therefore, the terminal device can determine whether packetization according to the first parameters is complete. If packetization according to the first parameters is not complete, packetization according to the second parameters is performed to obtain the second data. In this way, the first data is sent to the first access network device via the first uplink grant, and the second data is sent to the second access network device via the second uplink grant corresponding to the second access network device, without using the second uplink grant corresponding to the first access network device. If packetization according to the first parameters is complete, the first data can be sent to the first access network device using only the first uplink grant, and a second uplink grant of the next duration of the second uplink grant can be awaited. If the second uplink grant of the next duration has a higher priority than other uplink grants, the second data can be sent using the second uplink grant of the next duration. Alternatively, after waiting for the second uplink authorization of the next duration, the second data is sent through the second uplink authorization of the next duration first, that is, there is no need to perform priority judgment again, but the second uplink authorization of the next duration for sending the second data is regarded as the highest priority uplink authorization.

[0141] Optionally, if the first uplink authorization and the second uplink authorization correspond to the same first access network device, the second uplink authorization also corresponds to the second access network device, and the first priority of the first uplink authorization is higher than the second priority of the second uplink authorization, the first data is sent to the first access network device through the first uplink authorization, and the second data is not sent to the first access network device or the second access network device through the second uplink authorization, or, the second uplink authorization of the next duration of the second uplink authorization is waited for to send the second data to the first access network device or the second access network device.

[0142] Figure 9 shows another uplink data transmission scenario. The UE has two uplink grants, DG and CG, which overlap in time. The UE determines that DG corresponds to TRP1, CG1 corresponds to TRP1 and TRP2, and that both DG and CG correspond to the same TRP1. Because the DG has a higher priority than the CG, the UE sends TB1 to TRP1 via the DG but does not send TB2 to either TRP1 or TRP2 via the CG.

[0143] Optionally, if the first uplink authorization and the second uplink authorization correspond to the same first access network device, the second uplink authorization also corresponds to the second access network device, and the first priority of the first uplink authorization is lower than or equal to the second priority of the second uplink authorization, the second data is sent to the second access network device through the second uplink authorization, and fourth data is sent to the first access network device through the second uplink authorization, the fourth data and the second data belonging to the same transmission block. The first data is not sent to the first access network device through the first uplink authorization, or the first uplink authorization of the next duration of the first uplink authorization is waited for to send the first data.

[0144] For example, if the UE has two uplink authorization CGs, they are recorded as CG1 and CG2. Among them, CG1 corresponds to mTRP transmission (for example, corresponding to TRP1 and TRP2), and CG2 corresponds to a single TRP transmission (for example, TRP1), and there is a time domain overlap between CG1 and CG2. When the priorities of CG1 and CG2 are the same, since CG1 corresponds to mTRP transmission, CG1 corresponding to mTRP transmission can be used as a high-priority uplink authorization. The UE packages TB1 to TRP1 and CG1 to TRP2 to obtain the first stream of TB1 and the second stream of TB1, and sends the first stream of TB1 to TRP1 through CG1 and sends the second stream of TB1 to TRP2 through CG1, instead of sending uplink data to TRP1 through CG2. Alternatively, when the priority of CG1 is higher than that of CG2, the UE gives priority to sending the first stream of TB1 to TRP1 through CG1 and sending the second stream of TB1 to TRP2 through CG1, instead of sending TB2 to TRP1 through CG2.

[0145] Optionally, if the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to the second access network device, the second uplink authorization corresponding to the first access network device and the second access network device can be used as a high-priority uplink authorization. The second data is sent to the second access network device via the second uplink authorization, and fourth data is sent to the first access network device via the second uplink authorization, where the fourth data and the second data belong to the same transmission block. The first data is not sent to the first access network device via the first uplink authorization, or the first data is sent after waiting for the first uplink authorization of the next duration of the first uplink authorization.

[0146] For example, if the UE has two uplink authorization CGs, they are recorded as CG1 and CG2. Among them, CG1 corresponds to mTRP transmission (for example, corresponding to TRP1 and TRP2), and CG2 corresponds to a single TRP transmission (for example, TRP1). There is a time domain overlap between CG1 and CG2. The UE uses CG1 corresponding to mTRP transmission as a high-priority uplink authorization. The UE packages CG1 to TRP1 and CG1 to TRP2 to obtain the first stream of TB1 and the second stream of TB1, and sends the first stream of TB1 to TRP1 through CG1 and the second stream of TB1 to TRP2 through CG1, respectively, without sending TB2 to TRP1 through CG2, or waiting for the next CG2 to send TB2 to TRP1.

[0147] In an embodiment of the present application, for multiple uplink authorizations with overlapping time domain positions, if the high-priority uplink authorization and the low-priority uplink authorization correspond to the same access network device, and the low-priority uplink authorization also corresponds to other access network devices, the low-priority uplink authorization can be used to send uplink data to other access network devices, thereby improving communication resource utilization, and improving communication capacity and reliability.

[0148] It should be noted that if the uplink grant and the uplink message overlap in time domain and correspond to the same access network device or different access network devices, the uplink data or uplink message can also be sent according to the above rules. The uplink message may include the data channel PUSCH, the control channel PUCCH, and the reference signal SRS. In addition, the above two embodiments can be used in combination or independently, both of which are within the scope of protection of this application.

[0149] It can be understood that, in the above-mentioned various method embodiments, the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device.

[0150] In the embodiment of the present application, the functional modules of the terminal device can be divided according to the above method example. For example, each functional module can be divided according to each function, or two or more functions can be integrated into one processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of modules in the embodiment of the present application is schematic and is only a logical functional division. There may be other division methods in actual implementation. The following is an example of dividing each functional module according to each function.

[0151] The method provided in the embodiment of the present application is described in detail above in conjunction with Figures 5 and 7. Below, the communication device provided in the embodiment of the present application is described in detail in conjunction with Figure 10. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, please refer to the method embodiment above. For the sake of brevity, it will not be repeated here.

[0152] Please refer to Figure 10, which is a schematic diagram of the structure of a communication device provided in an embodiment of the present application. The communication device may include a processing module 1001 and a sending module 1002.

[0153] Optionally, the communication device may implement steps or processes corresponding to those performed by the terminal device in the above method embodiment. For example, it may be a terminal device, or a chip or circuit configured in the terminal device. The sending module 1002 is used to perform the sending and receiving related operations on the terminal device side in the above method embodiment, and the processing module 1001 is used to perform the processing related operations of the terminal device in the above method embodiment.

[0154] In one embodiment:

[0155] The processing module 1001 is configured to determine whether a first uplink authorization and a second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions;

[0156] A sending module 1002 is configured to send first data to the first access network device through the first uplink authorization, and send second data to the second access network device through the second uplink authorization if the first uplink authorization and the second uplink authorization correspond to different access network devices; or

[0157] The sending module 1002 is also used to send third data to the third access network device through the first uplink authorization, or to send fourth data to the third access network device through the second uplink authorization if the first uplink authorization and the second uplink authorization correspond to the same access network device.

[0158] Optionally, processing module 1001 is also used to determine whether the first identifier associated with the first uplink authorization is the same as the second identifier associated with the second uplink authorization; if the first identifier is the same as the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first identifier is different from the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0159] The first identifier or the second identifier is an identifier of a control resource pool.

[0160] Optionally, the processing module 1001 is further used to determine whether a first transmission configuration indication state TCI state associated with the first uplink authorization is the same as a second TCI state associated with the second uplink authorization; if the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0161] Optionally, the processing module 1001 is further used to determine whether the first reference signal associated with the first uplink authorization is the same as the second reference signal associated with the second uplink authorization; if the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0162] Optionally, the processing module 1001 is further used to determine whether the first reference signal set associated with the first uplink authorization is the same as the second reference signal set associated with the second uplink authorization; if the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0163] Optionally, the processing module 1001 is also used to determine the first priority of the first uplink authorization and the second priority of the second uplink authorization; based on the first priority and the second priority, send third data to the third access network device through the first uplink authorization, or send fourth data to the third access network device through the second uplink authorization.

[0164] Optionally, the processing module 1001 is also used to obtain the priority of the first logical channel of the third data and the priority of the second logical channel of the fourth data; based on the priority of the first logical channel and the priority of the second logical channel, determine the first priority of the first uplink authorization and the second priority of the second uplink authorization.

[0165] The first uplink authorization is a dynamic uplink authorization DG or a pre-configured uplink authorization CG, and the second uplink authorization is DG or CG.

[0166] In another embodiment:

[0167] The processing module 1001 is configured to determine whether a first uplink authorization and a second uplink authorization correspond to the same access network device, and whether the first uplink authorization and the second uplink authorization have overlapping time domain positions;

[0168] A sending module 1002 is configured to determine a first priority of the first uplink authorization and a second priority of the second uplink authorization if the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to a second access network device;

[0169] The sending module 1002 is further used to send first data to the first access network device through the first uplink authorization if the first priority is higher than the second priority, and to send second data to the second access network device through the second uplink authorization.

[0170] Optionally, the processing module 1001 is further configured to perform packetization according to a first parameter to obtain the second data and third data, where the first parameter is used to indicate a transport block size for packetization according to the second uplink grant corresponding to the first access network device and the second access network device, and the third data and the second data belong to the same transport block;

[0171] The sending module 1002 is further configured to send the third data to the first access network device or the second access network device through a second uplink grant of a next duration of the second uplink grant.

[0172] Optionally, the processing module 1001 is further used to obtain the second data by packetizing according to a second parameter, where the second parameter is used to indicate a transmission block size for packetizing according to the second uplink authorization corresponding to the second access network device.

[0173] Optionally, the processing module 1001 is also used to determine whether packet assembly according to a first parameter is completed, where the first parameter is used to indicate the transmission block size for packet assembly according to the second uplink authorization corresponding to the first access network device and the second access network device; if packet assembly according to the first parameter is not completed, packet assembly is performed according to the second parameter to obtain the second data.

[0174] Optionally, the sending module 1002 is also used to send the second data to the second access network device through the second uplink authorization if the first priority is lower than or equal to the second priority, and to send fourth data to the first access network device through the second uplink authorization, and the fourth data and the second data belong to the same transmission block.

[0175] Optionally, the processing module 1001 is further configured to determine whether a first transmission configuration indication state TCI state associated with the first uplink grant is the same as a second TCI state associated with the second uplink grant;

[0176] If the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0177] Optionally, the processing module 1001 is further configured to determine whether a first reference signal associated with the first uplink grant is the same as a second reference signal associated with the second uplink grant;

[0178] If the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0179] Optionally, the processing module 1001 is further configured to determine whether a first reference signal set associated with the first uplink grant is the same as a second reference signal set associated with the second uplink grant;

[0180] If the first reference signal set and the second reference signal set are the same, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set and the second reference signal set are different, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

[0181] The first uplink authorization is a dynamic uplink authorization DG or a pre-configured uplink authorization CG, and the second uplink authorization is DG or CG.

[0182] It should be noted that the implementation of each module can also correspond to the corresponding description of the method embodiments shown in Figures 5 and 7, and execute the methods and functions executed by the terminal device in the above embodiments.

[0183] Figure 11 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application. The terminal device can be applied to the system shown in Figure 1 to perform the functions of the terminal device in the above method embodiment, or to implement the steps or processes performed by the terminal device in the above method embodiment.

[0184] As shown in Figure 11, the terminal device includes a processor 1101 and a transceiver 1102. Optionally, the terminal device also includes a memory 1103. The processor 1101, transceiver 1102, and memory 1103 can communicate with each other via internal connection paths to transmit control and / or data signals. The memory 1103 is used to store computer programs, and the processor 1101 is used to call and execute the computer programs from the memory 1103 to control the transceiver 1102 to transmit and receive signals. Optionally, the terminal device may also include an antenna for transmitting uplink data or uplink control signaling output by the transceiver 1102 via wireless signals.

[0185] The processor 1101 and the memory 1103 may be combined into a processing device, and the processor 1101 is configured to execute program code stored in the memory 1103 to implement the aforementioned functions. In a specific implementation, the memory 1103 may also be integrated into the processor 1101 or independent of the processor 1101. The processor 1101 may correspond to the processing module in FIG10 .

[0186] The transceiver 1102 may correspond to the transmitting module in FIG10 and may also be referred to as a transceiver unit or a transceiver module. The transceiver 1102 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0187] It should be understood that the terminal device shown in FIG11 is capable of implementing the various processes related to the terminal device in the method embodiments shown in FIG5 and FIG7. The operations and / or functions of the various modules in the terminal device are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the description of the above method embodiments. To avoid repetition, detailed description is omitted here.

[0188] The processor 1101 can be used to perform the actions implemented within the terminal device described in the previous method embodiments, while the transceiver 1102 can be used to perform the actions of the terminal device sending to or receiving from the terminal device described in the previous method embodiments. For details, please refer to the description of the previous method embodiments, which will not be repeated here.

[0189] The processor 1101 may be a central processing unit (CPU), a general-purpose processor (GPOR), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic device (PLD), a transistor logic device (TLD), a hardware component, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. The processor 1101 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on. The communication bus 1104 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industrial Standard Architecture (EISA) bus. These buses may be categorized as address buses, data buses, control buses, and so on. For ease of illustration, FIG11 shows only one bold line, but this does not imply that there is only one bus or type of bus. The communication bus 1104 is used to facilitate communication between these components. In the embodiment of this application, the transceiver 1102 is used to communicate signaling or data with other node devices. The memory 1103 may include volatile memory, such as nonvolatile dynamic random access memory (NVRAM), phase change random access memory (PRAM), magnetoresistive random access memory (MRAM), etc. It may also include non-volatile memory, such as at least one disk storage device, electrically erasable programmable read-only memory (EEPROM), flash memory devices, such as NOR flash memory or NAND flash memory, semiconductor devices, such as solid state disks (SSDs), etc. The memory 1103 may optionally be at least one storage device located away from the aforementioned processor 1101. The memory 1103 may optionally also store a set of computer program code or configuration information. Optionally, the processor 1101 may also execute the program stored in the memory 1103. The processor may cooperate with the memory and the transceiver to execute any of the methods and functions of the first terminal device or the second terminal device in the above-mentioned application embodiments.

[0190] An embodiment of the present application also provides a chip system, which includes a processor for supporting a terminal device to implement the functions involved in any of the above embodiments, such as generating or processing the uplink data involved in the above method.

[0191] In one possible design, the chip system may also include a memory for storing computer programs and data necessary for the terminal device. The chip system may consist solely of a chip or may include a chip and other discrete components. The inputs and outputs of the chip system correspond to the receive and transmit operations of the terminal device in the method embodiment, respectively.

[0192] According to the method provided in the embodiments of the present application, the present application also provides a computer program product, which includes: a computer program, which, when running on a computer, enables the computer to execute the method of any one of the embodiments shown in Figures 5 and 7.

[0193] According to the method provided in the embodiments of the present application, the present application also provides a computer-readable medium, which stores a computer program. When the computer program runs on a computer, the computer executes the method of any one of the embodiments shown in Figures 5 and 7.

[0194] According to the method provided in the embodiment of the present application, the present application also provides a communication system, which includes one or more terminal devices and one or more access network devices as mentioned above.

[0195] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, a solid state disc (SSD)).

[0196] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: Determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and the first uplink authorization and the second uplink authorization have overlapping time domain positions; If the first uplink authorization and the second uplink authorization correspond to the same first access network device, and the second uplink authorization also corresponds to a second access network device, determining a first priority of the first uplink authorization and a second priority of the second uplink authorization; If the first priority is higher than the second priority, first data is sent to the first access network device through the first uplink authorization, and second data is sent to the second access network device through the second uplink authorization.

2. The method according to claim 1, characterized in that The method further comprises: The second data and the third data are obtained by packetizing according to a first parameter, wherein the first parameter is used to indicate a transmission block size for packetizing according to the second uplink grant corresponding to the first access network device and the second access network device, and the third data and the second data belong to the same transmission block; The third data is sent to the first access network device or the second access network device through a second uplink grant of the next duration of the second uplink grant.

3. The method according to claim 1, characterized in that The method further comprises: The second data is obtained by packetizing according to a second parameter, where the second parameter is used to indicate a transmission block size for packetizing according to the second uplink grant corresponding to the second access network device.

4. The method according to claim 3, characterized in that The step of packaging according to the second parameter to obtain the second data includes: determining whether packet assembly according to a first parameter is completed, where the first parameter is used to indicate a transmission block size for packet assembly according to the second uplink grant corresponding to the first access network device and the second access network device; If the packaging according to the first parameter is not completed, the second data is obtained by packaging according to the second parameter.

5. The method according to claim 1, characterized in that The method further comprises: If the first priority is lower than or equal to the second priority, the second data is sent to the second access network device through the second uplink authorization, and the fourth data is sent to the first access network device through the second uplink authorization, and the fourth data and the second data belong to the same transmission block.

6. The method according to any one of claims 1 to 5, characterized in that: The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first transmission configuration indication state TCI state associated with the first uplink grant is the same as a second TCI state associated with the second uplink grant; If the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

7. The method according to any one of claims 1 to 5, characterized in that: The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first reference signal associated with the first uplink grant is the same as a second reference signal associated with the second uplink grant; If the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

8. The method according to any one of claims 1 to 5, characterized in that: The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first reference signal set associated with the first uplink grant is the same as a second reference signal set associated with the second uplink grant; If the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

9. The method according to any one of claims 1 to 8, characterized in that The first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

10. A communication method, characterized in that: The method comprises: Determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device, and the first uplink authorization and the second uplink authorization have overlapping time domain positions; If the first uplink authorization and the second uplink authorization correspond to different access network devices, sending first data to the first access network device through the first uplink authorization, and sending second data to the second access network device through the second uplink authorization; or If the first uplink authorization and the second uplink authorization correspond to the same access network device, the third data is sent to the third access network device through the first uplink authorization, or the fourth data is sent to the third access network device through the second uplink authorization.

11. The method according to claim 10, characterized in that The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: Determining whether a first identifier associated with the first uplink authorization is the same as a second identifier associated with the second uplink authorization; If the first identifier is the same as the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first identifier is different from the second identifier, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

12. The method according to claim 11, characterized in that The first identifier or the second identifier is an identifier of a control resource pool.

13. The method according to claim 10, characterized in that The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first transmission configuration indication state TCI state associated with the first uplink grant is the same as a second TCI state associated with the second uplink grant; If the first TCI state is the same as the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first TCI state is different from the second TCI state, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

14. The method according to claim 10, characterized in that The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first reference signal associated with the first uplink grant is the same as a second reference signal associated with the second uplink grant; If the first reference signal is the same as the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal is different from the second reference signal, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

15. The method according to claim 10, characterized in that The determining whether the first uplink authorization and the second uplink authorization correspond to the same access network device includes: determining whether a first reference signal set associated with the first uplink grant is the same as a second reference signal set associated with the second uplink grant; If the first reference signal set is the same as the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to the same access network device; if the first reference signal set is different from the second reference signal set, it is determined that the first uplink authorization and the second uplink authorization correspond to different access network devices.

16. The method according to any one of claims 10 to 15, characterized in that: The sending third data to the third access network device through the first uplink authorization, or sending fourth data to the third access network device through the second uplink authorization includes: Determining a first priority of the first uplink grant and a second priority of the second uplink grant; Based on the first priority and the second priority, third data is sent to a third access network device through the first uplink grant, or fourth data is sent to the third access network device through the second uplink grant.

17. The method according to claim 16, characterized in that The determining the first priority of the first uplink grant and the second priority of the second uplink grant comprises: Acquire the priority of the first logical channel of the third data and the priority of the second logical channel of the fourth data; Based on the priority of the first logical channel and the priority of the second logical channel, a first priority of the first uplink grant and a second priority of the second uplink grant are determined.

18. The method according to any one of claims 10 to 17, characterized in that: The first uplink authorization is a dynamic uplink authorization DG or a preconfigured uplink authorization CG, and the second uplink authorization is DG or CG.

19. A communication device, characterized in that: The communication device comprises a memory and a processor, wherein the memory is used to store a computer program, and the processor runs the computer program to enable the communication device to perform the method according to any one of claims 1 to 9 or any one of claims 10 to 18.

20. A computer-readable storage medium, characterized in that: The computer-readable storage medium comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 18 is implemented.

21. A chip, characterized in that: The chip includes a processor and a communication interface, wherein the communication interface is used to communicate with an external device or an internal device, and the processor is used to implement the method according to any one of claims 1-18.

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