Transmission configuration method and communication device

Abstract

Disclosed are a transmission configuration method and a communication device, the transmission configuration method comprising: receiving configuration information, the configuration information comprising first transmission configuration indication (TCI) state information and / or at least one second TCI state information, the first TCI state information comprising a TCI state that can be used for downlink transmission, and the at least one second TCI state information comprising a TCI state that can be used for downlink transmission; the first TCI state information and / or the at least one piece of second TCI state information comprises a TCI state which can be used for uplink transmission. By adopting the method and the device, various possible configurations of the TCI state in downlink single-TRP transmission and uplink multi-TRP transmission scenes can be supported.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a transmission configuration method and a communication device. Background Art

[0002] The transmission configuration indicator (TCI) state can be used to indicate a quasi-co-location (QCL) relationship. The QCL relationship is used to indicate that multiple resources have one or more identical or similar communication characteristics. For multiple resources with a QCL relationship, the same or similar communication configuration can be used. For example, the TCI state indicates the QCL information of the physical downlink control channel (PDCCH) / physical downlink shared channel (PDSCH), which can be specifically used to indicate which reference signal the demodulation reference signal (DMRS) of the PDCCH / PDSCH satisfies the QCL relationship with. The terminal can then use the spatial parameters (e.g., receiving beam) that are the same or similar to the spatial parameters of the reference signal to receive / process the PDCCH / PDSCH. With the development of communication technology, scenarios in which multiple transmission and reception points (TRPs) collaborate have emerged. For the scenario in which multiple TRPs collaborate, how to achieve both meeting various rate requirements for uplink rates and reducing network deployment costs is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The embodiments of the present application provide a transmission configuration method and a communication device, which can meet various rate requirements of uplink transmission and reduce network deployment costs.

[0004] In a first aspect, an embodiment of the present application provides a transmission configuration method, wherein the method can be performed by a terminal device, or by a component of the terminal device (such as a processor, a chip, or a chip system, etc.), and the method includes:

[0005] Configuration information is received, wherein the configuration information includes first transmission configuration indication TCI state information and / or at least one second TCI state information, wherein the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

[0006] According to the description of the implementation of the first aspect, in a scenario where multiple TRPs collaborate, the first TCI state information includes a TCI state that can be used for downlink transmission. Optionally, the first TCI state information may also include a TCI state that can be used for uplink transmission. The second TCI state information includes a TCI state that can be used for uplink transmission, but does not include a TCI state that can be used for downlink transmission. The network device can flexibly meet various rate requirements for uplink transmission by configuring various possible combinations of the first TCI state information and / or at least one second TCI state information. For example, when a high rate is required for uplink transmission, the first TCI state information and / or at least one second TCI state information can both include the TCI state for uplink transmission. And the method of implementing the first aspect only includes the TCI state that can be used for downlink transmission in the first TCI state information, that is, only one TRP needs to support the capability of downlink transmission between the terminal device. Compared with the prior art, each TRP needs to support the capability of uplink and downlink transmission between the terminal device. This application can save network deployment costs.

[0007] In a possible implementation manner, the first TCI state information includes a TCI state that can be used for downlink transmission, including:

[0008] The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

[0009] When this method is implemented, the first TCI status information includes the TCI / TCI status that can be used for downlink transmission associated with a single TRP, thereby realizing the downlink transmission of the terminal device as a single TRP.

[0010] In a possible implementation, the method further includes:

[0011] Receive first indication information, wherein the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

[0012] By implementing this method, the downlink transmission of the terminal device is realized as a single TRP through the first indication information.

[0013] In a possible implementation manner, the TCI state in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state;

[0014] The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0015] This method is implemented by limiting the combined second TCI state contained in the second TCI state information contained in the configuration information to be used only for uplink transmission and not for downlink transmission, thereby realizing the configuration of the TCI state of the terminal device with the downlink transmission being a single TRP and the uplink transmission being one or more TRPs.

[0016] In a possible implementation, the method further includes:

[0017] Second indication information is received, where the second indication information indicates that the TCI state used for downlink transmission is only the TCI state included in the first TCI state information.

[0018] By implementing this method, the network device indicates through the indication information that the TCI state of the downlink transmission is only the first TCI state information, and does not include the TCI state in the second TCI state information, thereby indirectly realizing the downlink transmission of the terminal device as a single TRP.

[0019] In a possible implementation, the method further includes:

[0020] Third indication information is received, where the third indication information indicates that the second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0021] In implementing this method, the network device indicates through indication information that the combined second TCI state contained in the second TCI state information is only used for uplink transmission and not for downlink transmission, thereby realizing the downlink transmission of the terminal device as a single TRP.

[0022] In a possible implementation manner, the second TCI state included in each second TCI state information in the at least one second TCI state information is predefined to be used only for uplink transmission.

[0023] In implementing this method, the combined second TCI state included in at least one second TCI state information is predefined to be used only for uplink transmission but not for downlink transmission, thereby realizing the downlink transmission of the terminal device as a single TRP.

[0024] In a possible implementation manner, the TCI state included in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

[0025] By implementing this method, the second TCI state information may only include the uplink TCI state but not the downlink TCI state, so that the TCI state in the second TCI state information is only used for uplink transmission, and the downlink transmission is a single TRP.

[0026] In a possible implementation manner, the TCI state in the first TCI state information is a separate TCI state or a combined TCI state.

[0027] By implementing this approach, the TCI state in the first TCI state information may not be limited to a separate TCI state or a combined TCI state, thereby being adaptable to scenarios of separate TCI state and combined TCI state.

[0028] In a possible implementation, the TCI state in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state, the first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

[0029] When this method is implemented, the TCI state in the first TCI state information is a separated TCI state scenario, and various combinations of uplink TCI state and / or downlink TCI state can be configured in the first TCI state information to meet the requirements of various configuration scenarios.

[0030] In a possible implementation manner, the TCI state in the first TCI state information is a joint TCI state, the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

[0031] By implementing this method, the TCI state in the first TCI state information is configured by the combined TCI state, which can save the configuration overhead of the TCI state.

[0032] In a possible implementation manner, the number of the second TCI status information is two; and the method further includes:

[0033] Receive fourth indication information, where the fourth indication information indicates a TCI state used for uplink transmission, where the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

[0034] By implementing this method, it is possible to further indicate the TCI state used for uplink transmission in a scenario where the network device is configured with three TCI state information, and to achieve flexible indication of the TCI state used for uplink transmission.

[0035] In a second aspect, an embodiment of the present application provides a transmission configuration method, wherein the method can be performed by a network device, or by a component of the network device (such as a processor, a chip, or a chip system, etc.), and the method includes:

[0036] Send configuration information, the configuration information including first transmission configuration indication TCI state information and / or at least one second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

[0037] In a possible implementation manner, the first TCI state information includes a TCI state that can be used for downlink transmission, including:

[0038] The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

[0039] In a possible implementation, the method further includes:

[0040] Send first indication information, wherein the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

[0041] In a possible implementation manner, the TCI state in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state;

[0042] The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0043] In a possible implementation, the method further includes:

[0044] Send second indication information, where the second indication information indicates that the TCI state of the downlink transmission is only the TCI state in the first TCI state information.

[0045] In a possible implementation, the method further includes:

[0046] Send third indication information, where the third indication information indicates that the second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0047] In a possible implementation manner, the second TCI state included in each second TCI state information in the at least one second TCI state information is predefined to be used only for uplink transmission.

[0048] In a possible implementation manner, the TCI state in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

[0049] In a possible implementation manner, the TCI state in the first TCI state information is a separate TCI state or a combined TCI state.

[0050] In a possible implementation, the TCI state in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state, the first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

[0051] In a possible implementation manner, the TCI state in the first TCI state information is a joint TCI state, the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

[0052] In a possible implementation, the method further includes:

[0053] Send fourth indication information, where the fourth indication information indicates a TCI state used for uplink transmission, where the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

[0054] In a third aspect, an embodiment of the present application provides a transmission configuration method, wherein the method can be performed by a terminal device, or by a component of the terminal device (such as a processor, a chip, or a chip system, etc.), and the method includes:

[0055] receiving first configuration information, where the first configuration information includes at least two first transmission configuration indication TCI states, where the first TCI state is used for downlink transmission;

[0056] receiving first indication information, where the first indication information indicates one of the at least two first TCI states;

[0057] receiving second configuration information, where the second configuration information includes at least two second TCI state combinations, one of the second TCI state combinations includes one or more second TCI states, and the second TCI state is used for uplink transmission;

[0058] Second indication information is received, where the second indication information indicates one second TCI state combination among the at least two second TCI state combinations.

[0059] Implementing the description of the third aspect, the uplink TCI state and the downlink TCI state are configured and indicated separately, thereby achieving decoupling of the uplink TCI state and the downlink TCI state, and flexibly realizing the configuration and indication of the TCI state of a single downlink TRP transmission and one or more uplink TRP transmissions.

[0060] In a possible implementation manner, the first indication information is carried in downlink control information DCI used for downlink scheduling.

[0061] By implementing this method, the TCI status indicating the downlink transmission is carried in the DCI used for downlink scheduling, which can save signaling overhead.

[0062] In a possible implementation manner, the second indication information is carried in downlink control information DCI used for uplink scheduling.

[0063] By implementing this method, the TCI state indicating the uplink transmission is carried in the DCI used for uplink scheduling, which can achieve decoupling of the uplink TCI state indication and the downlink TCI state indication, and realize flexible indication.

[0064] In a fourth aspect, an embodiment of the present application provides a transmission configuration method, wherein the method can be performed by a network device, or by a component of the network device (such as a processor, a chip, or a chip system, etc.), and the method includes:

[0065] Sending first configuration information, where the first configuration information includes at least two first transmission configuration indication TCI states, where the first TCI state is used for downlink transmission;

[0066] Sending first indication information, where the first indication information indicates one of the at least two first TCI states;

[0067] Sending second configuration information, where the second configuration information includes at least two second TCI state combinations, one of the second TCI state combinations includes one or more second TCI states, and the second TCI state is used for uplink transmission;

[0068] Send second indication information, where the second indication information indicates one second TCI state combination among the at least two second TCI state combinations.

[0069] In a possible implementation manner, the first indication information is carried in downlink control information DCI used for downlink scheduling.

[0070] In a possible implementation manner, the second indication information is carried in downlink control information DCI used for uplink scheduling.

[0071] In a fifth aspect, an embodiment of the present application provides a time determination method, wherein the method can be executed by a terminal device, or by a component of the terminal device (such as a processor, a chip, or a chip system, etc.), and the method includes:

[0072] Determine a physical uplink shared channel PUSCH to be transmitted, where the PUSCH is associated with a first timing advance TA and a second TA;

[0073] A processing time of the PUSCH is determined according to the first TA and the second TA.

[0074] When this method is implemented, when PUSCH is associated with two TAs, that is, the uplink transmission is two TRPs, the first TA and the second TA need to be comprehensively considered when determining the processing time of PUSCH, so as to improve the reliability of PUSCH transmission.

[0075] The beneficial effects of the second aspect to the fifth aspect and various optional embodiments of the second aspect to the fifth aspect can refer to the beneficial effects of the first aspect and various optional embodiments of the first aspect, and will not be repeated here.

[0076] In a sixth aspect, an embodiment of the present application provides a communication device, which includes a unit for implementing the method in any possible implementation manner of the first aspect above.

[0077] In a seventh aspect, an embodiment of the present application provides a communication device, which includes a unit for implementing the method in any possible implementation manner of the second aspect above.

[0078] In an eighth aspect, an embodiment of the present application provides a communication device, which includes a unit for implementing the method in any possible implementation manner of the third aspect above.

[0079] In a ninth aspect, an embodiment of the present application provides a communication device, which includes a unit for implementing the method in any possible implementation manner of the fourth aspect above.

[0080] In a tenth aspect, an embodiment of the present application provides a communication device, which includes a unit for implementing the method in any possible implementation manner of the fifth aspect above.

[0081] In the eleventh aspect, an embodiment of the present application provides a communication device, which includes a processor and a memory, the processor and the memory are connected to each other, the memory is used to store a computer program, the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method as described in the first aspect or any optional embodiment of the first aspect, or to execute the method as described in the second aspect or any optional embodiment of the second aspect, or to execute the method as described in the third aspect or any optional embodiment of the third aspect, or to execute the method as described in the fourth aspect or any optional embodiment of the fourth aspect, or to execute the method as described in the fifth aspect or any optional embodiment of the fifth aspect.

[0082] In the twelfth aspect, an embodiment of the present application provides a chip, comprising a processor and an interface, wherein the processor and the interface are coupled; the interface is used to receive and / or output signals, and the processor is used to execute code instructions to execute a method as described in the first aspect or any optional embodiment of the first aspect, or to execute a method as described in the second aspect or any optional embodiment of the second aspect, or to execute a method as described in the third aspect or any optional embodiment of the third aspect, or to execute a method as described in the fourth aspect or any optional embodiment of the fourth aspect, or to execute a method as described in the fifth aspect or any optional embodiment of the fifth aspect.

[0083] In the thirteenth aspect, an embodiment of the present application provides a module device, which includes a communication module, a power module, a storage module and a chip module, wherein: the power module is used to provide power to the module device; the storage module is used to store data and / or instructions; the communication module communicates with an external device; the chip module is used to call the data and / or instructions stored in the storage module, and in combination with the communication module, execute the method as described in the first aspect or any optional embodiment of the first aspect, or execute the method as described in the second aspect or any optional embodiment of the second aspect, or execute the method as described in the third aspect or any optional embodiment of the third aspect, or execute the method as described in the fourth aspect or any optional embodiment of the fourth aspect, or execute the method as described in the fifth aspect or any optional embodiment of the fifth aspect.

[0084] In the fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, which stores a computer program, and the computer program includes program instructions. When the computer executes the program instructions, it implements the method as described in the first aspect or any optional embodiment of the first aspect, or implements the method as described in the second aspect or any optional embodiment of the second aspect, or executes the method as described in the third aspect or any optional embodiment of the third aspect, or executes the method as described in the fourth aspect or any optional embodiment of the fourth aspect, or executes the method as described in the fifth aspect or any optional embodiment of the fifth aspect.

[0085] In the fifteenth aspect, an embodiment of the present application provides a computer program product, which includes a computer program or a computer code, which, when running on a computer, is used to implement the method described in the first aspect or any optional embodiment of the first aspect, to implement the method described in the second aspect or any optional embodiment of the second aspect, or to execute the method described in the third aspect or any optional embodiment of the third aspect, or to execute the method described in the fourth aspect or any optional embodiment of the fourth aspect, or to execute the method described in the fifth aspect or any optional embodiment of the fifth aspect.

[0086] In the sixteenth aspect, an embodiment of the present application provides a communication system, which includes a terminal device and a network device. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] Figure 1 It is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;

[0088] Figure 2 It is a schematic diagram of a scenario provided by an embodiment of the present application;

[0089] Figure 3 It is a flow chart of a transmission configuration method provided in an embodiment of the present application;

[0090] Figure 4 It is a flowchart of another transmission configuration method provided in an embodiment of the present application;

[0091] Figure 5 It is a flowchart of a time determination method provided in an embodiment of the present application;

[0092] Figure 6 is a structural diagram of a communication device provided in an embodiment of the present application;

[0093] Figure 7 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application;

[0094] Figure 8 is a structural diagram of another communication device provided in an embodiment of the present application;

[0095] Fig. 9 is a structural diagram of another communication device provided in an embodiment of the present application;

[0096] Fig.10 It is a structural schematic diagram of a module device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0097] In the embodiments of the present application, unless otherwise specified, the character " / " indicates that the objects before and after the association are in an or relationship. For example, A / B can represent A or B. "And / or" describes the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone.

[0098] It should be pointed out that the words "first", "second", etc. involved in the embodiments of the present application are only used to distinguish the description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, nor can they be understood as indicating or implying order.

[0099] In the embodiments of the present application, "at least one" refers to one or more, and "plurality" refers to two or more. In addition, "at least one of the following" or similar expressions refers to any combination of these items, which may include any combination of single items or plural items. For example, at least one of A, B, or C can represent: A, B, C, A and B, A and C, B and C, or A, B and C. Among them, each of A, B, and C can be an element itself, or a set containing one or more elements.

[0100] In the embodiments of the present application, "exemplary", "in some embodiments", "in another embodiment", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the word "exemplary" is intended to present concepts in a concrete way.

[0101] In the embodiments of the present application, "of", "corresponding", and "corresponding" can sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings to be expressed are consistent. In the embodiments of the present application, communication and transmission can sometimes be used interchangeably. It should be noted that when the distinction between them is not emphasized, the meanings to be expressed are consistent. For example, transmission can include sending and / or receiving, which can be a noun or a verb.

[0102] The equal to involved in the embodiments of the present application can be used in conjunction with greater than, and is applicable to the technical solution adopted when greater than, and can also be used in conjunction with less than, and is applicable to the technical solution adopted when less than. It should be noted that when equal to is used in conjunction with greater than, it cannot be used in conjunction with less than; when equal to is used in conjunction with less than, it cannot be used in conjunction with greater than.

[0103] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of a communication system provided in an embodiment of the present application. The communication system may include but is not limited to one or more network devices and one or more terminal devices. Figure 1 Take three network devices and one terminal device as an example. Figure 1 The three network devices are network device 1, network device 2 and network device 3. Among them, Figure 1 The network device in the example is a base station, and the terminal device is a mobile phone. The terminal device can establish a wireless link with the network device to communicate. Figure 1 The communication system shown includes but is not limited to network equipment and terminal equipment, and may also include other communication equipment. Figure 1 The number and form of the devices shown are for illustrative purposes only and do not constitute a limitation on the embodiments of the present application.

[0104] In the embodiments of the present application, the terminal device is a device with wireless transceiver functions, which can be referred to as a terminal, user equipment (UE), mobile station (MS), mobile terminal (MT), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile equipment, UE terminal equipment, wireless communication equipment, UE agent or UE device, etc. The terminal device can be fixed or mobile. It should be noted that the terminal device can support at least one wireless communication technology, such as long term evolution (LTE), new radio (NR), etc. For example, the terminal device may be a mobile phone, a tablet computer (pad), a desktop computer, a laptop computer, an all-in-one computer, a vehicle-mounted terminal, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a wearable device, a terminal device in a future mobile communication network, or a terminal device in a future evolved public mobile land network (PLMN), etc. In some embodiments of the present application, the terminal device may also be a device with transceiver functions, such as a chip system, wherein the chip system may include a chip and may also include other discrete devices.

[0105] In the embodiment of the present application, the network device is a device that provides wireless communication functions for the terminal device, and can also be referred to as an access network device, a radio access network (RAN) device, etc. Among them, the network device can support at least one wireless communication technology, such as LTE, NR, etc. For example, the network device includes but is not limited to: the next generation base station (generation nodeB, gNB) in the fifth generation mobile communication system (5th-generation, 5G), the base station in the sixth generation mobile communication system (6th-generation, 6G), the evolved node B (evolved node B, eNB), the radio network controller (radio network controller, RNC), the node B (node ​​B, NB), the base station controller (base station controller, BSC), the base transceiver station (base transceiver station, BTS), the home base station (for example, home evolved node B, or home node B, HNB), the baseband unit (baseband unit, BBU), the transmitting and receiving point (transmitting and receiving point, TRP), the transmitting point (transmitting point, TP), the mobile switching center, etc. The network device may also be a wireless controller, a centralized unit (CU), and / or a distributed unit (DU) in a cloud radio access network (CRAN) scenario, or the network device may be a relay station, an access point, a vehicle-mounted device, a terminal device, a wearable device, and a network device in future mobile communications or a network device in a future evolving PLMN. In some embodiments, the network device may also be a device having a wireless communication function for a terminal device, such as a chip system. For example, the chip system may include a chip and may also include other discrete devices.

[0106] In some possible implementations, the network device may include a device in a core network (CN).

[0107] For example, the equipment in the CN may include an access and mobility management function (AMF), a user plane function (UPF), a session management function (SMF), etc.

[0108] In some possible implementations, the network device may also be an access point (AP) in a wireless local area network (WLAN), a relay station, a communication device in a future evolved public land mobile network (PLMN), a communication device in a non-terrestrial network (NTN) system network, etc.

[0109] In some possible implementations, the network device may include a device that provides wireless communication functions for the terminal device, such as a chip system, a chip, or a chip module. For example, the chip system may include a chip, or may include other discrete devices.

[0110] In some possible implementations, the network device may be a transmission and reception point (TRP).

[0111] In some possible implementations, the network device may communicate with an Internet Protocol (IP) network, such as the Internet, a private IP network, or other data networks.

[0112] In some possible implementations, the network device may include an independent node to implement the functions of the above-mentioned base station, or may include two or more independent nodes to implement the functions of the above-mentioned base station. For example, the network device includes a centralized unit (CU) and a distributed unit (DU), such as gNB-CU and gNB-DU. Further, in some other embodiments of the present application, the network device may also include an active antenna unit (AAU). Among them, the CU implements part of the functions of the network device, and the DU implements another part of the functions of the network device. For example, the CU is responsible for processing non-real-time protocols and services, and implements the functions of the radio resource control (RRC) layer, the service data adaptation protocol (SDAP) layer, and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, and implements the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. In addition, the AAU can implement some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the physical (PHY) layer, or be converted from the information of the PHY layer, under this network deployment, high-level signaling (such as RRC signaling) can be considered to be generated by the CU, sent by the DU, or sent by the DU and the AAU. It can be understood that the network device may include at least one of the CU, DU, and AAU. In addition, the CU can be divided into a RAN device, or the CU can be divided into a core network device, without specific limitation.

[0113] In some possible implementations, the network device may be any one of the multiple sites that perform coherent joint transmission (CJT) with the terminal device, or other sites outside the multiple sites, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site coherent joint transmission may be multiple sites coherent transmission, or different data belonging to the same physical downlink shared channel (PDSCH) are sent from different sites to the terminal device, or multiple sites are virtualized into one site for transmission, and names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site coherent joint transmission may be a remote radio head (RRH), a TRP, etc., and there is no specific limitation on this.

[0114] In some possible implementations, the network device may be any site in the multi-site that performs incoherent joint transmission with the terminal device, or other sites outside the multi-site, or other network devices that perform network communication with the terminal device, and there is no specific limitation on this. Among them, multi-site incoherent joint transmission can be multiple sites joint incoherent transmission, or different data belonging to the same PDSCH is sent from different sites to the terminal device, and the names with the same meaning specified in other standards are also applicable to this application, that is, this application does not limit the names of these parameters. The sites in the multi-site incoherent joint transmission can be RRH, TRP, etc., and there is no specific limitation on this. The transmission scheme of multiple TRPs may include a multi-TRP (single-downlink control information based M-TRP, S-DCI based M-TRP) transmission scheme based on single downlink control information, and may also include a multi-TRP (M-DCI based M-TRP) transmission scheme based on multiple downlink control information.

[0115] Among them, M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool identifiers (coresetPoolIndex) values, such as coresetPoolIndex = 0, coresetPoolIndex = 1. Of course, M-DCIbased M-TRP can also be reflected in other ways, which are not specifically limited.

[0116] Among them, S-DCI based M-TRP can be embodied as one DCI can indicate multiple transmission configuration indicator (TCI) states, or one DCI can include multiple sounding reference signal resource indication (SRS resource indicator, SRI) fields. Of course, S-DCI based M-TRP can also be embodied in other ways, which is not specifically limited.

[0117] It should be noted that the TRP of the present application is not limited to coherent joint transmission or incoherent joint transmission scenarios, but can also be applied to other scenarios without specific restrictions.

[0118] In some possible implementations, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0119] In some possible implementations, a network device may provide services for a cell, and a terminal device in the cell may communicate with the network device through transmission resources (such as spectrum resources). The cell may be a macrocell, a small cell, a metro cell, a microcell, a pico cell, a femto cell, etc.

[0120] In some possible implementations, the network device described in the embodiments of the present application may be a chip, a chip module, a device, a unit, etc., without specific limitation.

[0121] Combine the following Figure 2 The following example shows a scenario of an embodiment of the present application. The downlink transmission of the terminal device supports a single TRP, for example Figure 2 The terminal device only supports downlink transmission with TRP1. The uplink transmission of the terminal device supports multiple TRPs, that is, the terminal device supports uplink transmission with multiple TRPs. Figure 2 The middle terminal device supports uplink transmission with TRP1, TRP2 and TRP3.

[0122] That is to say, Figure 2 The terminal device shown has the ability to support downlink transmission with a single TRP (ie, TRP1) and uplink transmission with multiple TRPs (TRP1, TRP2, and TRP3).

[0123] As an example, Figure 2 In scenario 1, the terminal device can actually transmit downlink with TRP1, and the terminal device can actually transmit uplink with TRP1 and TRP2. As another example, Figure 2 In scenario 2, the terminal device can actually transmit downlink with TRP1, and the terminal device can actually transmit uplink with TRP2 and TRP3. As another example, Figure 2 In scenario 3, the terminal device can actually transmit downlink with TRP1, and the terminal device can actually transmit uplink with TRP1 and TRP2. As another example, Figure 2 In scenario 4, the terminal device can actually transmit downlink with TRP1, and the terminal device can actually transmit uplink with TRP2. The above scenarios 1 to 4 are only examples, and the scenarios to which the embodiments of the present application can be applied are not limited to Figure 2 Scenarios 1 to 4 shown can also be applied to other scenarios. For example, the terminal device can actually only perform downlink transmission with TRP1, and the terminal device does not perform uplink transmission. Alternatively, the terminal device actually only performs uplink transmission with TRP2 and TRP3, and the terminal device does not perform uplink transmission and downlink transmission with TRP1, etc.

[0124] Some terms involved in the embodiments of the present application are explained below to facilitate understanding by those skilled in the art.

[0125] 1. Timing Advance (TA)

[0126] For uplink transmission, the base station requires that the time when signals from different terminal devices in the same subframe arrive at the base station is basically aligned to ensure the orthogonality of uplink transmission, so as to achieve non-interference between uplink transmissions from different terminal devices in the same cell and avoid intra-cell interference. Specifically, as long as the base station receives the uplink data sent by the terminal device within the cyclic prefix (CP) range, it can correctly decode the uplink data. Therefore, uplink synchronization requires that the time when signals from different terminal devices in the same subframe arrive at the base station falls within the CP. In order to ensure time synchronization on the receiving side (base station side), a timing advance (TA) mechanism is proposed. For the terminal device side, TA is essentially a negative offset between the start time of receiving the downlink subframe and the time of transmitting the uplink subframe. The base station can control the time when uplink signals from different terminal devices arrive at the base station by appropriately controlling the time offset of each UE. For terminal devices farther away from the base station, due to the large transmission delay, uplink data must be sent earlier than terminal devices closer to the base station.

[0127] 2.TRP

[0128] It should be noted that the new communication scenarios mentioned in this application may involve communication scenarios such as multiple-transmission and reception point (M-TRP), M-TRP based on multiple downlink control information (multiple-downlink control information based M-TRP, M-DCI based M-TRP), and M-TRP based on single DCI (S-DCI based M-TRP).

[0129] M-DCI based M-TRP can be reflected in that the network will configure multiple control resource set pool indexes (controlresource set pool index, CORESET pool index, CORESETPoolIndex) values, such as CORESETPoolIndex = 0, CORESETPoolIndex = 1. It can also be reflected in that the network will configure the value of the control resource set pool index (control resource set pool index, CORESET pool index, CORESETPoolIndex), such as CORESETPoolIndex = 1. Of course, M-DCI based M-TRP is reflected through other concepts / parameters, and no specific limitation is made to this.

[0130] S-DCI based M-TRP can be embodied as one DCI can indicate multiple TCI states, or one DCI can include multiple sounding reference signal resource indicator (SRS resource indicator, SRI) fields, etc. Of course, S-DCIbased M-TRP can also be embodied by other concepts / parameters, which are not specifically limited.

[0131] In some possible implementations, TRP can be a functional module (for example, implemented using software functions) or can be implemented through hardware, and there is no specific limitation on this.

[0132] In some possible implementations, TRP can be characterized by parameters such as TCI status, sounding reference signal (SRS) resources, SRS resource set, spatial information, CORESETPoolIndex, timing advance group (TAG) identifier (ID), SRI, and TCIselection field values.

[0133] That is to say, parameters such as TCI status, SRS resources, SRS resource set, airspace information, CORESETPoolIndex, TAG ID, SRI, etc. can also be regarded as TRP.

[0134] In some possible implementations, TRP can be associated with spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by spatial information or a slot direction (e.g., a beam or a group of beams); or, TRP can be characterized by power control parameters.

[0135] In some possible implementations, the TRP may be a network node, a radio head, a spatial relation, or a transmission configuration indication state. In some embodiments, the TRP may be represented by a spatial relation or a TCI state. In some embodiments, the TRP may use multiple TCI states. In some embodiments, the TRP may be part of a gNB that sends / receives radio signals to / from a terminal device based on the physical layer attributes and parameters inherent to the element. In some embodiments, in multi-TRP (multi-TRP) operation, the serving cell may schedule the terminal device from two TRPs, thereby providing better physical downlink shared channel (PDSCH) coverage, reliability, and / or data rate. There are two different operating modes for multi-TRP: single downlink control information (DCI) and multi-DCI. For both modes, the control of uplink and downlink operations is done by the physical layer and the media access control (MAC). In single DCI mode, the terminal device is scheduled by the same DCI of the two TRPs, while in multi-DCI mode, the terminal device is scheduled by an independent DCI from each TRP.

[0136] In some embodiments, a set of transmission points (TPs) is a set of geographically co-located transmit antennas, e.g., antenna arrays (with one or more antenna elements), for a cell, a portion of a cell, or a positioning reference signal, PRS-only TPs. TPs may include base station (eNB) antennas, remote radio heads (RRHs), remote antennas of base stations, antennas of PRS-only TPs, etc. A cell may consist of one or more TPs. For homogeneous deployments, each TP may correspond to a cell.

[0137] In some embodiments, a group of TRPs is a group of geographically co-located antennas, such as an antenna array (having one or more antenna elements), that support TP and / or reception point (RP) functionality.

[0138] Note that the description given herein focuses on 3GPP cellular communication systems, and therefore, 3GPP terminology or 3GPP-like terminology is often used. However, the concepts disclosed herein are not limited to 3GPP systems.

[0139] The TCI status, SRS resources, SRS resource set, CORESETPoolIndex, TAG ID, and SRI are explained below.

[0140] 1. TCI status

[0141] The TCI state may include one DL RS, or multiple DL RSs (such as 2 DL RSs), or one UL RS, or multiple UL RSs, or one UL RS and one DL RS. The DL RS may be set to Quasi Co-Location (QCL) type D (QCL-type D).

[0142] QCL-typeD may include spatial reception parameters, etc. The spatial reception parameters may include at least one of the following: receiving angle of arrival (angle of arival, AOA), average AOA, AOA extension, transmitting angle of departure (angle of departure, AOD), average AOD, AOD extension, receiving antenna spatial correlation, transmitting antenna spatial correlation, transmitting beam, receiving beam, resource identification, etc.

[0143] In some possible implementations, an uplink (UL) TCI state may be applicable to part or all of the uplink channels / signals; a downlink (DL) TCI state may be applicable to part or all of the downlink channels / signals.

[0144] In some possible implementations, the TCI state may be a unified TCI state in Release 17 (R17), or a unified TCI state in other protocol versions, etc., without specific limitation.

[0145] It should be noted that the unified TCI state may include a joint TCI state and / or a separate TCI state.

[0146] The Joint TCI state can be understood as the common TCI state of the downlink and uplink, referred to as the Joint mechanism, and of course other terms can be used to describe it, such as the first mechanism, etc., without specific restrictions. Among them, the Joint mechanism can mean that a TCI state can be applicable to some or all downlink channels / signals, and some or all uplink channels / signals.

[0147] Separate TCI state can be understood as different TCI states for downlink and uplink, referred to as Separate mechanism, and of course other terms can be used to describe it, such as the second mechanism, etc., without specific limitation. The Separate mechanism can mean that a part of the TCI state is only applicable to part or all of the downlink channels / signals, while another part of the TCI state is only applicable to part or all of the uplink channels / signals.

[0148] In some possible implementations, the TCI state may be a unified TCI state in Release 17 (R17). Understandably, the unified TCI state may be understood as being configured with UnifiedTCI-StateType. For UnifiedTCI-StateType, the unified transmission configuration indicates that the state type may be configured for the serving cell (ForUnifiedTCI-StateType, indicates the unified TCI state type the UE isconfigured for this serving cell.).

[0149] When the value of UnifiedTCI-StateType is "separate", this means that the serving cell is configured with dl-OrJointTCI-StateList for DL ​​TCI state and / or ul-TCI-ToAddModList for ULTCI state.

[0150] When the value of UnifiedTCI-StateType is "joint", this means that the serving cell is configured with dl-OrJointTCI-StateList for joint TCI state for UL and DL operation.

[0151] In some possible implementations, the unified TCI state function may include the following two mechanisms: a Joint mechanism and a Separate mechanism.

[0152] For example, the Joint mechanism can be understood as that one TCI state can be applicable to part or all, and / or part or, and / or part or all of the aperiodic channel state information reference signal (AP CSI-RS) used for beam management (BM) and / or channel state information acquisition, and / or part or all of the physical uplink shared channel (Physical uplink shared channel, PUSCH), and / or part or all of the physical uplink control channel (Physical uplink control channel, PUCCH), and / or part or all of the sounding reference signal (SRS).

[0153] If a serving cell is configured with a joint mechanism (which can be understood as unifiedTCI-StateType-r17 or unifiedTCI-StateType value is joint), it means that the serving cell is configured with dl-OrJointTCI-StateList for downlink and uplink operations.

[0154] For example, the Separate mechanism can be understood as, in two TCI states (or a pair of TCI states), one TCI state is applicable to downlink channels / signals, and the other TCI state is applicable to uplink channels / signals. The downlink channels / signals may be part or all of the PDSCH, and / or part or all of the PDCCH, and / or part or all of the AP CSI-RS used for BM and / or channel state information acquisition; the uplink channels / signals may be part or all of the PUSCH, and / or part or all of the PUCCH, and / or part or all of the SRS.

[0155] If a service cell is configured with a separate mechanism (which can be understood as unifiedTCI-StateType-r17 or unifiedTCI-StateType is set to separate), it means that the service cell is configured with dl-OrJointTCI-StateList for the downlink TCI state and with ul-TCI-ToAddModList for the uplink TCI state.

[0156] 2. SRS Resources

[0157] It should be noted that the SRS resources can be used for channel quality estimation, so that frequency selective scheduling, beam management, etc. can be performed in the uplink. It can be understood that different SRS resources among the multiple SRS resources can belong to different SRS resource sets.

[0158] In some possible implementations, SRS resources may be distinguished by SRI.

[0159] 3. SRS Resource Set

[0160] It should be noted that each SRS resource set may include one or more SRS resources. The network device may configure multiple SRS resource sets for the terminal device for various purposes, such as for uplink and downlink multi-antenna precoding, uplink and downlink beam management, etc.

[0161] The usage of the SRS resource set is configured or indicated as 'codebook' or 'non-codebook'.

[0162] For example, the network device can configure two SRS resource sets with usage as 'codebook', or configure two SRS resource sets with usage as 'nonCodebook'.

[0163] In some possible implementations, the SRS resource set may be distinguished by SRI or SRS resource set indicator.

[0164] 4. CORESETPoolIndex

[0165] It should be noted that CORESETPoolIndex can be used to group downlink channels / signals and / or uplink channels / signals. Different CORESETPoolIndex values ​​can represent different TRPs.

[0166] In some possible implementations, CORESETPoolIndex may be associated with a control resource set (CORESET), and the association may be network-configured.

[0167] 5. TAG ID

[0168] A TAG may be composed of one or more cells. That is, a TAG includes at least one cell, and each cell is assigned at least one TAG ID, that is, the TAG ID is used to distinguish different TAGs or cells. Among them, all cells in a TAG share the same TA.

[0169] In addition, TAG ID can indicate TAG. Therefore, TAG can also be understood as the TAG indicated by TAG ID.

[0170] In some possible implementations, a master cell group (MCG) or a secondary cell group (SCG) may be configured to be associated with up to four TAGs.

[0171] In some possible implementations, a cell may be configured with multiple TAGs (eg, 2 TAGs).

[0172] It should be noted that the various technical solutions (or embodiments) of the present application can be implemented independently or in combination based on certain internal connections. The present application is not limited thereto. In addition, the various terms and definitions between the various embodiments can be referenced to each other. In each embodiment of the present application, different implementations can also be implemented in combination or independently.

[0173] Please refer to Figure 3 , is a flow chart of a transmission configuration method provided in an embodiment of the present application, such as Figure 3 As shown, the transmission configuration method of this embodiment includes the following steps 301, and optionally, may also include step 302. Steps 301-302 are described below:

[0174] 301, the network device sends configuration information, and correspondingly, the terminal device receives the configuration information.

[0175] The configuration information includes first TCI state information and / or at least one second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or at least one second TCI state information includes a TCI state that can be used for uplink transmission.

[0176] In some embodiments, the information contained in the configuration information may all be contained in the same signaling. In some embodiments, the information contained in the configuration information may be contained in multiple signalings. For example, part of the information in the configuration information is carried in one signaling, and another part of the information in the configuration information is carried in another signaling. The following example is described, for example, the first TCI state information in the configuration information may be carried in one signaling, and the second TCI state information may be carried in another signaling, that is, the first TCI state information and the second TCI state information may be carried in different signalings respectively. In some implementations, the first TCI state information and the second TCI state information may also be carried in the same signaling, which is not limited in this application. The above signaling may include at least one of the following signalings: RRC signaling, MAC layer signaling, or DCI signaling. In some implementations, the signaling types of the signaling where the first TCI state information is located and the signaling where the second TCI state information is located may be different. For example, the DCI signaling carries the first TCI state information, and the MAC signaling carries at least one second TCI state information. The signaling type of the signaling containing the first TCI status information and the signaling containing the second TCI status information may also be the same, which is not limited in this application.

[0177] In one implementation, the configuration information includes first TCI state information and second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and the second TCI state information both include a TCI state that can be used for uplink transmission. This implementation can configure a single TCI state for downlink transmission and multiple TCI states for uplink transmission, so as to meet the high rate requirement of uplink transmission.

[0178] In one implementation method, the configuration information includes first TCI state information and second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and only the second TCI state information contains a TCI state that can be used for uplink transmission. This implementation method can meet the scenario requirements where downlink transmission and uplink transmission are transmitted based on different TRPs respectively.

[0179] In one implementation, the configuration information only includes the first TCI state information, and the first TCI state information includes a TCI state that can be used for uplink transmission and a TCI state that can be used for downlink transmission. This implementation can enable the terminal device to have the ability to transmit uplink to multiple TRPs and transmit downlink to one TRP among multiple TRPs, but the network device only configures the uplink transmission and the downlink transmission based on the same TRP to achieve flexible configuration.

[0180] In one implementation method, the configuration information only includes the second TCI state information, and the second TCI state information includes a TCI state that can be used for uplink transmission. The implementation method can meet the scenario requirements of configuring the TCI state of uplink transmission.

[0181] In the embodiment of the present application, the terminal device supports downlink transmission with a single network device, and the terminal device supports uplink transmission with multiple network devices. Figure 2 As shown, it is a schematic diagram of a scenario of an embodiment of the present application. The terminal device only supports downlink transmission with TRP1, and the terminal device supports uplink transmission with TRP1, TRP2 and TRP3. In actual uplink transmission and downlink transmission, it can be as follows Figure 2 It can be understood that scenes 1 to 4 may also include other scenes, which are not limited in this application.

[0182] The above configuration information may be carried in a MAC Control Element (MAC CE). Optionally, before the above step 301, the network device may configure multiple TCI states through Radio Resource Control (RRC) signaling, for example, 128 TCI states may be configured. The TCI state included in the first TCI state information and / or the second TCI state information in the configuration information in step 301 is the TCI state in the RRC signaling. Exemplarily, the TCI state in the embodiment of the present application may be a unified TCI state.

[0183] The TCI state contained in a TCI state information (such as the first TCI state information or the second TCI state information) can be understood as the TCI state configured by the network device for a TRP, that is, the TCI state configured for a TRP is carried through a TCI state information. In the embodiment of the present application, the TCI state information containing the TCI state for downlink transmission is referred to as the first TCI state information, and the TCI state information that does not contain the TCI state for downlink transmission but only includes the TCI state for uplink transmission is referred to as the second TCI state information. The description of the first TCI state information and the second TCI state information is only an example, and the first TCI state information and the second TCI state information may also be the same type of information or the same information, which is not limited in the present application.

[0184] The configuration information may include one or more TCI state information combinations, and a TCI state information combination may include one or more TCI state information. The TCI state contained in a TCI state information can be used for uplink transmission and / or downlink transmission between a TRP. A TCI state information combination may correspond to a code point of the TCI field in the DCI. The code point can be understood as a value of the TCI field in the DCI. For example, if the TCI field is 3 bits, 000 is a code point, and 001 is another code point. A code point is used to indicate a TCI state information combination. A TCI state information combination may include the first TCI state information and / or the second TCI state information. For example, as shown in Table 1, the code point of the TCI field is 000, and the corresponding TCI state information combination includes the first TCI state information, and the TCI state contained in the first TCI state information is TCI state1. The code point of the TCI field is 001, and the corresponding TCI state information combination includes the first TCI state information and the second TCI state information, and the TCI state included in the first TCI state information is TCI state2, and the TCI state included in the second TCI state information is TCI state3. The code point of the TCI field is 010, and the corresponding TCI state information combination includes the first TCI state information, and the TCI state included in the first TCI state information is TCI state4. Further optionally, which state information combination the terminal device specifically uses can be indicated by the network device.

[0185] TCI code points First TCI Status Information Second TCI status information 000 TCI state1 001 TCI state2 TCI state3 010 TCI state4

[0186] Table 1

[0187] The TCI state information that includes the TCI state that can be used for downlink transmission in a TCI state information combination is called the first TCI state information. Optionally, the first TCI state information may also include the TCI state that can be used for uplink transmission. It can be understood that the TCI state that can be used for downlink transmission and the TCI state that can be used for uplink transmission in the first TCI state information can be the same (for example, the TCI state in the first TCI state information is the Joint TCI state). In Table 1, the TCI state in the first TCI state information and the second TCI state information is taken as an example of the Joint TCI state. The TCI state that can be used for downlink transmission and the TCI state that can be used for uplink transmission in the first TCI state information can be different TCI states (for example, the TCI state in the first TCI state information is the Separate TCI state).

[0188] The TCI state information that does not include the TCI state that can be used for downlink transmission is called the second TCI state information, and the second TCI state information includes the TCI state that can be used for uplink transmission. The number of second TCI state information in a TCI state information combination is not limited, for example, the number of second TCI state information can be one or two, etc. The TCI states included in different second TCI state information can be different or the same.

[0189] In an embodiment of the present application, any TCI state information combination included in the configuration information includes the first TCI state information and / or at least one second TCI state information. It is understandable that the combinations of TCI state information included in different TCI state information combinations may be different. For example, one TCI state information combination includes the first TCI state information, another TCI state information combination includes the first TCI state information and the second TCI state information, and another TCI state information combination includes the first TCI state information and two second TCI state information. This application does not limit this. It is understandable that any TCI state information combination included in the configuration information includes the first TCI state information and / or at least one second TCI state information, and the combinations of TCI state information included in different TCI state information combinations may also be the same.

[0190] Exemplarily, the network device may be a TRP. In an embodiment of the present application, the downlink transmission of the terminal device is based on the downlink transmission of a single TRP. Therefore, the first TCI state information contains a TCI state that can be used for the downlink transmission associated with a single TRP. Among them, the downlink transmission associated with a single TRP includes the transmission of all or part of the downlink channel or downlink signal between the TRP and the terminal device. The TCI state that can be used for the downlink transmission associated with a single TRP may be a TCI state. If the TCI state is a Joint TCI state, the TCI state can also be used for uplink transmission. If the TCI state of the downlink transmission associated with a single TRP is a Separate TCI state, the TCI state of the downlink transmission associated with the single TRP is a downlink TCI state.

[0191] In some embodiments, the network device may indicate that the number of TRPs associated with the downlink transmission is single. The indication method may be an explicit indication or an implicit indication, which is not limited in the present application. As an example, the implicit indication method may be that the RRC layer does not configure tciSelection-PresentInDCI-r18, that is, the RRC signaling does not include tciSelection-PresentInDCI-r18. The tciSelection-PresentInDCI-r18 field is used to switch between the number of TRPs associated with the downlink transmission being multiple TRPs or a single TRP. If this field is not configured, it indicates that the downlink transmission is associated with a single TRP. As another example, the network device may display the number of TRPs associated with the downlink transmission as single through the first indication information. For example, if the upper layer configures tciSelection-PresentInDCI-r18, it may further display the number of TRPs associated with the downlink transmission as single through the value of the TCI selection field in the DL DCI used to schedule the downlink transmission. For example, the value of the TCIselection field is 0 or 1, that is, the first indication information is the value of the TCI selection field. As another example, the control resource set (Control Resource Set, CORESET) or CSI-RS can also be configured through high-level signaling to follow the TCI state in one of the TCI state information (in the embodiment of the present application, the TCI state information followed by CORESET / CSI-RS is referred to as the first TCI state information), or CORESET / CSI-RS does not follow the unified TCI state, but a single TCI state is configured for CORESET / CSI-RS, thereby indicating that the number of TRPs associated with the downlink transmission is single.

[0192] In some embodiments, the network device may indicate that the downlink transmission mode is a downlink transmission mode based on a single TRP. The indication mode may be an explicit indication or an implicit indication, which is not limited in this application. As an example, the implicit indication mode may be that the RRC layer does not configure tciSelection-PresentInDCI-r18, that is, the RRC signaling does not include tciSelection-PresentInDCI-r18. The tciSelection-PresentInDCI-r18 field is used to indicate whether it is a downlink transmission mode based on a single TRP or a downlink transmission mode based on multiple TRPs. If this field is not configured, the downlink transmission mode is indicated as a downlink transmission mode based on a single TRP. If this field is configured, the downlink transmission mode is indicated as a downlink transmission mode based on multiple TRPs. As another example, the network device may display the downlink transmission mode based on a single TRP through the first indication information. For example, if the high layer configures tciSelection-PresentInDCI-r18, the downlink transmission mode may be further displayed through the value of the TCI selection field in the DL DCI used to schedule the downlink transmission to indicate that the downlink transmission mode is based on a single TRP. For example, the TCI selection field takes a value of 0 or 1, indicating that the downlink transmission mode is based on a single TRP. The downlink transmission mode, that is, the first indication information is the value of the TCI selection field. As another example, the control resource set (Control Resource Set, CORESET) or CSI-RS may also be configured through high-layer signaling to follow the TCI state in one of the TCI state information (in the embodiment of the present application, the TCI state information followed by CORESET / CSI-RS is referred to as the first TCI state information), or CORESET / CSI-RS does not follow the unifiedTCI state, but a single TCI state is configured for CORESET / CSI-RS, thereby indicating that the transmission mode of the downlink transmission is a downlink transmission mode based on a single TRP.

[0193] Optionally, step 302 may also be included:

[0194] 302. The terminal device communicates based on the configuration information.

[0195] After receiving the configuration information, the terminal device can determine the TCI state that can be used for uplink transmission and the TCI state that can be used for downlink transmission. The terminal device can perform uplink transmission according to the TCI state that can be used for uplink transmission, and / or the terminal device can perform downlink transmission according to the TCI state that can be used for downlink transmission.

[0196] In some embodiments, the configuration information includes multiple TCI status information combinations, and the terminal device may also receive the DCI of the network device, and the DCI includes indication information for indicating a TCI status information combination. For example, the code point in the TCI field of the DCI is indication information for indicating a TCI status information combination, and the terminal device communicates according to the TCI status information combination indicated by the code point in the TCI field, and the TCI status information combination may include the first TCI status information and / or the second TCI status information. The terminal device uses the TCI status that can be used for downlink transmission contained in the first TCI status information for downlink transmission; and / or, the terminal device uses the TCI status in the first TCI status information and / or the second TCI status information for uplink transmission.

[0197] In the embodiment of the present application, the TCI state in the second TCI state information is a combined TCI state or a separated TCI state. The following examples are respectively given by taking the TCI state in the second TCI state information as a combined TCI state or a separated TCI state:

[0198] Case 1: The TCI state in the second TCI state information is a joint TCI state.

[0199] Each second TCI state information in the at least one second TCI state information includes a second TCI state, and it can be understood that the second TCI states included in different second TCI state information may be different. The second TCI state is a joint TCI state, that is, the second TCI state can be used for uplink transmission and downlink transmission.

[0200] The number of TRPs associated with downlink transmission is single, only the first TCI state information contains the TCI state for downlink transmission, and the second TCI state contained in at least one second TCI state information is only used for uplink transmission, which can be implemented in the following manner. It can be understood that in the following various methods, the TCI state in the first TCI state information is not limited to a joint TCI state or a separate TCI state:

[0201] Mode 1: The network device indicates through the second indication information that the TCI state of the downlink transmission is only the TCI state in the first TCI state information.

[0202] Although the second TCI state in the second TCI state information is a joint TCI state, since the terminal device receives the second indication information, the terminal device will not use the second TCI state in the second TCI state information for downlink transmission, that is, the second TCI state contained in the second TCI state information is only used for uplink transmission.

[0203] In one implementation, the second indication information may be included in the configuration information in step 301, that is, the configuration information includes the second indication information. In another implementation, the second indication information may be different from the configuration information in step 301, and the second indication information and the configuration information may be carried in the same signaling or in different signalings.

[0204] The following is an example with reference to Table 2. In Table 2, a code point in the TCI field of the DCI corresponds to a TCI state information combination in the configuration information. A TCI state information combination is any row in Table 2. A TCI state information combination indicated by a code point may include only the first TCI state information, or may include the first TCI state information and the second TCI state information. It is understandable that it may also include only the second TCI state information, which is not listed in Table 2. In Table 2, the first TCI state contained in the first TCI state information and the second TCI state contained in the second TCI state information are both joint TCI states as an example. It is understandable that the TCI state contained in the first TCI state information may also be a separated TCI state, that is, it includes the first uplink TCI state and / or the first downlink TCI state, respectively.

[0205] Only the TCI state in the first TCI state information can be used for downlink transmission, that is, the second TCI state indicated in the second TCI state information is only used for uplink transmission and cannot be used for downlink transmission. For example, if the TCI in the DCI sent by the network device includes 001, the terminal device can use TCI state2 for uplink and downlink transmissions, and use TCIstate3 for uplink transmission.

[0206] TCI code points First TCI Status Information Second TCI status information 000 TCI state1 001 TCI state2 TCI state3 010 TCI state4 011 TCI state5 TCI state6 100 TCI state8 TCI state9 101 TCI state7 110 TCI state12 TCI state14 111 TCI state18 TCI state20

[0207] Table 2

[0208] Mode 2: The network device indicates through the third indication information that the second TCI state included in the second TCI state information is only used for uplink transmission. In other words, the second TCI state included in the second TCI state information is not used for downlink transmission.

[0209] Although the second TCI state in the second TCI state information is a joint TCI state, since the terminal device receives the third indication information, the terminal device will not use the second TCI state in the second TCI state information for downlink transmission, that is, the second TCI state contained in the second TCI state information is only used for uplink transmission.

[0210] The third indication information may be carried in a MAC CE, and may be the same MAC CE or a different MAC CE as the MAC CE where the above configuration information is located.

[0211] The following continues to give examples in conjunction with Table 1. The second TCI state indicated in the second TCI state information is only used for uplink transmission. For example, if the TCI in the DCI sent by the network device includes 001, the terminal device can use TCI state2 for uplink and downlink transmissions, and use TCI state3 only for uplink transmission.

[0212] Mode 3: The second TCI state included in the second TCI state information is predefined only for uplink transmission.

[0213] For example, the protocol stipulates that the second TCI state included in at least one second TCI state information included in the configuration information cannot be used for downlink transmission, but can only be used for uplink transmission. Although the second TCI state in the second TCI state information is a joint TCI state, since the protocol stipulates that the second TCI state in the second TCI state information is only used for uplink transmission, the terminal device will not use the second TCI state for downlink transmission.

[0214] Case 2: The TCI state in the second TCI state information is a separated TCI state.

[0215] Each second TCI state information in at least one second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission. The second TCI state information does not include a second downlink TCI state, that is, the second TCI state information only includes an uplink TCI state, but not a downlink TCI state.

[0216] The following is an example with reference to Table 3. In Table 3, a code point in the TCI field of the DCI corresponds to a TCI state information combination in the configuration information. A TCI state information combination is any row in Table 3. A TCI state information combination indicated by a code point may include only the first TCI state information, or may include the first TCI state information and the second TCI state information. It is understandable that in some scenarios, only the second TCI state information may be included. Table 3 is only an example. In Table 3, the first TCI state information includes the first uplink TCI state and / or the first downlink TCI state, and the second TCI state information includes the second uplink TCI state as an example. It is understandable that the TCI state included in the first TCI state information may also be a joint TCI state. For example, the first TCI state information includes the first TCI state, and the first TCI state can be used for uplink transmission and downlink transmission. In Table 3, the second downlink TCI state in the second TCI state information is empty, so that the second TCI state information only includes the TCI state for uplink transmission, but does not include the TCI state for downlink transmission. In Table 3, the TCI code points 000 to 011 are taken as an example.

[0217] The second uplink TCI state included in the second TCI state information is used for uplink transmission. For example, if the TCI in the DCI sent by the network device includes 001, the terminal device can use TCI state4 for downlink transmission and TCIstate5 for uplink transmission.

[0218]

[0219]

[0220] Table 3

[0221] In case 2, the network device may configure CORESET / CSI-RS through high-layer signaling to use the TCI state in the first TCI state information for transmission. Alternatively, the network device may also configure CORESET / CSI-RS through high-layer signaling not to follow the unified TCI state (i.e., not to follow the TCI state in the first TCI state information and the second TCI state information), but to configure a single TCI state for CORESET / CSI-RS.

[0222] In the above case 1 and case 2, the TCI state in the first TCI state information is not limited to a separate TCI state or a combined TCI state.

[0223] Exemplarily, if the TCI state in the first TCI state information is a separated TCI state, the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state, the first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

[0224] Exemplarily, if the TCI state in the first TCI state information is a joint TCI state, the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

[0225] In the above cases 1 and 2, the number of the second TCI state information in the configuration information is two or more than two, and the network device may indicate the TCI state actually used for the uplink transmission through the fourth indication information, and the TCI state actually used for the uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information. For example, the two TCI states actually used for the uplink transmission may be one TCI state that can be used for uplink transmission in the first TCI state information and one TCI state that can be used for uplink transmission in the second TCI state information. For another example, the two TCI states actually used for the uplink transmission may be two TCI states that can be used for uplink transmission in two second TCI state information. For another example, the one TCI state actually used for the uplink transmission may be one TCI state that can be used for uplink transmission in the first TCI state information. For another example, the one TCI state actually used for the uplink transmission may be one TCI state that can be used for uplink transmission in the first TCI state information. For another example, the one TCI state actually used for the uplink transmission may be one TCI state that can be used for uplink transmission in the second TCI state information.

[0226] Taking Table 4 as an example, in Table 4, the TCI states in the first TCI state information and the two second TCI state information are taken as an example of a joint TCI state. It can be understood that the TCI state in the first TCI state information and / or the second TCI state information can also be a separate TCI state, which is not limited in this application. A TCI state information combination in Table 4 is any row in Table 1, and a TCI state information combination indicated by a code point may include the first TCI state information and / or the first second TCI state information and / or the second second TCI state information. The TCI state indicated in the second TCI state information is only used for uplink transmission. When uplink transmission is performed between the terminal device and one or two TRPs, that is, the uplink transmission uses one or two TCI states, since a TCI state information combination in the configuration information can be as many as three TCI states, the TCI state used for uplink transmission can be indicated by the fourth indication information. In Table 4, the TCI code points of 000~011 are taken as examples.

[0227] The fourth indication information may occupy at least one bit, and the value of the at least one bit may be used to indicate the TCI state used for uplink transmission. For example, the fourth indication information may occupy 3 bits, and if the value of the 3 bits is 000, it indicates that the TCI state in the first TCI state information is used for uplink transmission, if the value of the 3 bits is 001, it indicates that the TCI state in the first second TCI state information is used for uplink transmission, if the value of the 3 bits is 010, it indicates that the TCI state in the second second TCI state information is used for uplink transmission, if the value of the 3 bits is 011, it indicates that the TCI state in the first TCI state information and the first second TCI state information is used for uplink transmission, if the value of the 3 bits is 011, it indicates that the TCI state in the first TCI state information and the first second TCI state information is used for uplink transmission, and if the value of the 3 bits is 100, it indicates that the TCI state in the first second TCI state information and the second second TCI state information is used for uplink transmission. Alternatively, the first second TCI state information may be replaced by the second TCI state information, and the second second TCI state information may be replaced by the third TCI state information.

[0228] The fourth indication information may be carried in a UL DCI for scheduling uplink transmission. Optionally, the fourth indication information may be carried in an SRS resource set indicator field in the UL DCI. The uplink transmission may be a PUSCH transmission.

[0229] Exemplarily, the network device can also indicate a TCI state information combination through the TCI field in the DL DCI. For example, if the TCI field is 000, the TCI state information combination is {TCI state1, TCI state2, TCI state3}. The network device can further indicate which one or two TCI states are used for uplink transmission through the fourth indication information.

[0230] TCI code points First TCI Status Information Second TCI status information Second TCI status information 000 TCI state1 TCI state2 TCI state3 001 TCI state4 010 TCI state5 TCI state6 011 TCI state7 TCI state8 TCI state9

[0231] Table 4

[0232] Please refer to Figure 4 , is a flow chart of another transmission configuration method provided in an embodiment of the present application, such as Figure 4As shown, the transmission configuration method of this embodiment includes but is not limited to the following steps. It should be noted that the execution order of the following steps is not limited. In some scenarios, the following steps can be merged based on internal connections. For example, step 401 and step 402 can be merged, and step 403 and step 404 can be merged. It can be understood that in some scenarios, some steps from step 401 to step 404 can be included instead of all steps. The following describes steps 401 to step 404 by example:

[0233] 401, a network device sends first configuration information, the first configuration information includes at least one first TCI state, and the first TCI state is used for downlink transmission. Correspondingly, a terminal device receives the first configuration information.

[0234] It is understandable that if the first configuration information in step 401 includes a first TCI state, step 402 may not be included.

[0235] In the embodiment of the present application, the uplink TCI state and the downlink TCI state are configured by different configuration information and indicated by different indication information. The first TCI state included in the first configuration information is the TCI state configured for downlink transmission.

[0236] If the first configuration information includes at least two first TCI states, the at least two first TCI states correspond one-to-one to the code points of the TCI field in the DL DCI. For example, the first configuration information includes 8 first TCI states, namely {TCIstate2, TCI state3, TCI state5, TCI state7, TCI state8, TCI state9, TCI state10, TCIstate12}, which correspond to the code points 000 to 111 of the TCI field in the DL DCI respectively.

[0237] The first configuration information may be carried in the first MAC CE.

[0238] 402, the network device sends first indication information, where the first indication information indicates a first TCI state. Correspondingly, the terminal device receives the first indication information.

[0239] The network device can indicate that the downlink transmission uses one of at least two first TCI states through the first indication information, thereby enabling the terminal device to perform downlink transmission with a single TRP. Continuing with the above configuration information including 8 first TCI states, and corresponding one-to-one with code points 000 to 111, if the first indication information is 000, the indicated first TCI state is TCI state2.

[0240] The first indication information may be carried in a DL DCI for scheduling downlink transmission. Further optionally, the first indication information may be encapsulated in a TCI field of the DL DCI.

[0241] 403, the network device sends second configuration information, the second configuration information includes at least one second TCI state combination, a second TCI state combination includes one or more second TCI states, and the second TCI state is used for uplink transmission. Correspondingly, the terminal device receives the second configuration information.

[0242] It is understandable that if the second configuration information in step 403 includes a second TCI state combination, step 404 may not be included.

[0243] The second TCI state is a TCI state used for uplink transmission. A second TCI state combination may include one or more second TCI states. A second TCI state can be used for uplink transmission with a TRP. In the implementation of the present application, the terminal device can perform uplink transmission with multiple TRPs, or uplink transmission with a TRP, so a second TCI state combination may include one or more second TCI states.

[0244] If the second configuration information includes at least two second TCI state combinations, the at least two second TCI state combinations correspond to code points of the TCI field in the UL DCI, and the TCI field is only an example, and may also be other fields. For example, a code point in the TCI field in the UL DCI may indicate a second TCI state combination.

[0245] The second configuration information may be carried in the second MAC CE.

[0246] 404, the network device sends second indication information, where the second indication information indicates a second TCI state combination. Correspondingly, the terminal device receives the second indication information.

[0247] The second indication information may be carried in the UL DCI used for scheduling uplink transmission.

[0248] The network device may instruct, through the second indication information, the uplink transmission to use a TCI state in one of the at least two second TCI state combinations for uplink transmission.

[0249] In this embodiment, the uplink TCI state and the downlink TCI state are configured through different configuration information and indicated through different indication information, so as to flexibly realize the configuration and indication scenario requirements of the TCI state of a single downlink TRP transmission and one or more uplink TRP transmissions.

[0250] The terminal device can transmit PUSCH between multiple TRPs, and the distances between the terminal device and the multiple TRPs are different. Therefore, PUSCH will be associated with the TAs of multiple TRPs. How to determine the PUSCH processing time in the scenario where the terminal device uplink transmits PUSCH associated with multiple TRPs is a technical problem that needs to be solved urgently. For details, please refer to Figure 5 Related introduction:

[0251] Please refer to Figure 5 , is a flow chart of a time determination method provided in an embodiment of the present application, such as Figure 5 As shown, the time determination method of this embodiment includes but is not limited to the following steps:

[0252] 501. The terminal device determines a PUSCH to be transmitted, where the PUSCH is associated with a first TA and a second TA.

[0253] Since the terminal device performs uplink transmission with two network devices (such as TRP) and performs uplink transmission through two TCI states, the distances between the terminal device and the two network devices are different, so there is a timing difference. The above-mentioned first TA may be associated with one network device, and the above-mentioned second TA may be associated with another network device.

[0254] 502. The terminal device determines a processing time of the PUSCH according to the first TA and the second TA.

[0255] When determining the processing time of the PUSCH, the terminal device needs to determine the processing time of the PUSCH according to the first TA and the second TA. For example, the processing time of the PUSCH can be determined according to the time difference between the first TA and the second TA.

[0256] Among them, the terminal device determines the PUSCH processing time according to the first TA and the second TA, which can be understood as the terminal device needs to consider the first TA and the second TA when determining whether the PUSCH processing time meets the time interval condition. Exemplarily, if the time interval between the last symbol of the PDCCH that schedules the PUSCH and the first symbol of the PUSCH is greater than or equal to the processing time of the PUSCH, the terminal device will send the transport block carried by the PUSCH.

[0257] Exemplarily, the PUSCH processing time may include the time for coding, modulation, etc. in the PUSCH. In the embodiment of the present application, the PUSCH processing time needs to be obtained based on the first TA and the second TA. For example, the PUSCH processing time is T proc,2 +max{first TA, second TA}. Where, T proc,2 For the calculation method, please refer to the relevant description in Section 6.4 of the 3GPP TS 38.214 protocol.

[0258] When PUSCH is associated with two TAs, that is, the uplink transmission is two TRPs, when determining the processing time of PUSCH, it is necessary to comprehensively consider the first TA and the second TA, so as to improve the accuracy of determining the PUSCH processing time.

[0259] See also Figure 6 , Figure 6 1 is a schematic diagram of a communication device provided in an embodiment of the present application, and the communication device is applied to a terminal device. Exemplarily, the communication device may be a terminal device, or a device in a terminal device, for example, a chip or chip module in the terminal device, or a device that can be used in conjunction with the terminal device. Figure 6 The communication device 100 shown may include a receiving unit 110, wherein:

[0260] The receiving unit 110 is used to receive configuration information, wherein the configuration information includes first transmission configuration indication TCI state information and / or at least one second TCI state information, wherein the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

[0261] In a possible implementation manner, the first TCI state information includes a TCI state that can be used for downlink transmission, including:

[0262] The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

[0263] In a possible implementation, the receiving unit 110 is further used to receive first indication information, where the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

[0264] In a possible implementation manner, the TCI state in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state;

[0265] The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0266] In a possible implementation, the receiving unit 110 is further used to receive second indication information, where the second indication information indicates that the TCI state used for downlink transmission is only the TCI state included in the first TCI state information.

[0267] In a possible implementation manner, the receiving unit 110 is further configured to receive third indication information, where the third indication information indicates that the second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0268] In a possible implementation manner, the second TCI state included in each second TCI state information in the at least one second TCI state information is predefined to be used only for uplink transmission.

[0269] In a possible implementation manner, the TCI state in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

[0270] In a possible implementation manner, the TCI state included in the first TCI state information is a separate TCI state or a combined TCI state.

[0271] In a possible implementation, the TCI state included in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state, the first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

[0272] In a possible implementation manner, the TCI state included in the first TCI state information is a joint TCI state, the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

[0273] In a possible implementation manner, the number of the second TCI state information is two;

[0274] The receiving unit 110 is also used to receive fourth indication information, wherein the fourth indication information indicates a TCI state used for uplink transmission, and the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

[0275] about Figure 6 The specific embodiment description can refer to Figure 3 The description of the embodiments will not be repeated here.

[0276] See also Figure 7 , Figure 71 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application. The communication device is applied to a network device. Exemplarily, the communication device may be a network device or a device in a network device, for example, a chip or chip module in the network device, or a device that can be used in conjunction with the network device. Figure 7 The communication device 200 shown may include a sending unit 210, wherein:

[0277] The sending unit 210 is used to send configuration information, wherein the configuration information includes a first transmission configuration indicating TCI state information and / or at least one second TCI state information, wherein the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

[0278] In a possible implementation manner, the first TCI state information includes a TCI state that can be used for downlink transmission, including:

[0279] The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

[0280] In a possible implementation, the sending unit 210 is further used to send first indication information, where the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

[0281] In a possible implementation manner, the TCI state included in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state;

[0282] The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0283] In a possible implementation, the sending unit 210 is further configured to send second indication information, where the second indication information indicates that the TCI state of the downlink transmission is only the TCI state included in the first TCI state information.

[0284] In a possible implementation, the sending unit 210 is further configured to send third indication information, where the third indication information indicates that the second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

[0285] In a possible implementation manner, the second TCI state included in each second TCI state information in the at least one second TCI state information is predefined to be used only for uplink transmission.

[0286] In a possible implementation manner, the TCI state in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

[0287] In a possible implementation manner, the TCI state in the first TCI state information is a separate TCI state or a combined TCI state.

[0288] In a possible implementation, the TCI state in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state, the first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

[0289] In a possible implementation manner, the TCI state included in the first TCI state information is a joint TCI state, and the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

[0290] In a possible implementation, the sending unit 210 is also used to send fourth indication information, wherein the fourth indication information indicates the TCI state used for uplink transmission, and the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

[0291] about Figure 7 The specific embodiment description can refer to Figure 3 The description of the embodiments will not be repeated here.

[0292] Reuse Figure 6 , the communication device is applied to a terminal device. Exemplarily, the communication device may be a terminal device, or a device in the terminal device, for example, a chip or chip module in the terminal device, or a device that can be used in conjunction with the terminal device. Figure 6 The communication device 100 shown may include a receiving unit 110, wherein:

[0293] A receiving unit 110 is configured to receive first configuration information, where the first configuration information includes at least two first transmission configuration indication TCI states, where the first TCI state is used for downlink transmission;

[0294] The receiving unit 110 is further configured to receive first indication information, where the first indication information indicates one first TCI state among the at least two first TCI states;

[0295] The receiving unit 110 is further configured to receive second configuration information, where the second configuration information includes at least two second TCI state combinations, one of the second TCI state combinations includes one or more second TCI states, and the second TCI state is used for uplink transmission;

[0296] The receiving unit 110 is further configured to receive second indication information, where the second indication information indicates a second TCI state combination among the at least two second TCI state combinations.

[0297] In a possible implementation manner, the first indication information is carried in downlink control information DCI used for downlink scheduling.

[0298] In a possible implementation manner, the second indication information is carried in downlink control information DCI used for uplink scheduling.

[0299] about Figure 6 The specific embodiment description can refer to Figure 4 The description of the embodiments will not be repeated here.

[0300] Reuse Figure 7 The communication device is applied to a network device. Exemplarily, the communication device may be a network device or a device in a network device, for example, a chip or a chip module in the network device, or a device that can be used in conjunction with the network device. Figure 7 The communication device 200 shown may include a sending unit 210, wherein:

[0301] A sending unit 210 is configured to send first configuration information, where the first configuration information includes at least two first transmission configuration indication TCI states, where the first TCI state is used for downlink transmission;

[0302] The sending unit 210 is further configured to send first indication information, where the first indication information indicates one of the at least two first TCI states;

[0303] The sending unit 210 is further configured to send second configuration information, where the second configuration information includes at least two second TCI state combinations, one of the second TCI state combinations includes one or more second TCI states, and the second TCI state is used for uplink transmission;

[0304] The sending unit 210 is further used to send second indication information, where the second indication information indicates one second TCI state combination among the at least two second TCI state combinations.

[0305] In a possible implementation manner, the first indication information is carried in downlink control information DCI used for downlink scheduling.

[0306] In a possible implementation manner, the second indication information is carried in downlink control information DCI used for uplink scheduling.

[0307] about Figure 7 The specific embodiment description can refer to Figure 4 The description of the embodiments will not be repeated here.

[0308] See also Figure 8 , Figure 8 1 is a schematic diagram of a communication device provided in an embodiment of the present application, and the communication device is applied to a terminal device. Exemplarily, the communication device may be a terminal device, or a device in a terminal device, for example, a chip or chip module in the terminal device, or a device that can be used in conjunction with the terminal device. Figure 8 The communication device 300 shown may include a first determining unit 310 and a second determining unit 320, wherein:

[0309] A first determining unit 310 is configured to determine a physical uplink shared channel PUSCH to be transmitted, wherein the PUSCH is associated with a first timing advance TA and a second TA;

[0310] The second determining unit 320 is configured to determine a processing time of the PUSCH according to the first TA and the second TA.

[0311] about Figure 8 The specific embodiment description can refer to Figure 5 The description of the embodiments will not be repeated here.

[0312] See also Fig. 9 , Fig. 9 is a schematic diagram of the structure of another communication device provided in an embodiment of the present application, which is used to implement the above Figure 3 , Figure 4 as well as Figure 5 The functions of the terminal device in the Figure 3 , Figure 4 as well as Figure 5 The communication device 400 may be a terminal device or a device for a terminal device. The device for a terminal device may be a chip system or a chip in a terminal device. The communication device may also be a network device or a device for a network device. The device for a network device may be a chip system or a chip in a network device. Among them, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0313] The communication device 400 includes at least one processor 420, which is used to implement the data processing function of the terminal device in the method provided in the embodiment of the present application. The communication device 400 may also include a communication interface 410, which is used to implement the transceiver operation of the terminal device in the method provided in the embodiment of the present application. In the embodiment of the present application, the processor 420 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. In the embodiment of the present application, the communication interface 410 may be a transceiver, circuit, bus, module or other type of communication interface, which is used to communicate with other devices through a transmission medium. For example, the communication interface 410 is used for the communication device 400 to communicate with other devices. The processor 420 uses the communication interface 410 to send and receive data, and is used to implement the above method embodiment. Figure 3 , Figure 4 as well as Figure 5 The method described.

[0314] The communication device 400 may also include at least one memory 430 for storing program instructions and / or data. The memory 430 is coupled to the processor 420. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which may be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 420 may operate in conjunction with the memory 430. The processor 420 may execute program instructions stored in the memory 430. At least one of the at least one memory may be included in the processor.

[0315] When the communication device 400 is turned on, the processor 420 can read the software program in the memory 430, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor 420 performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit ( Fig. 9The RF circuit processes the baseband signal and then transmits the RF signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the communication device 400, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 420, which converts the baseband signal into data and processes the data.

[0316] In another implementation, the RF circuit and antenna may be arranged independently from the processor 420 that performs baseband processing. For example, in a distributed scenario, the RF circuit and antenna may be arranged independently from the device in a remote manner.

[0317] The specific connection medium between the communication interface 410, the processor 420 and the memory 430 is not limited in the embodiment of the present application. Fig. 9 In the embodiment, the memory 430, the processor 420 and the communication interface 410 are connected via a bus 440. Fig. 9 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig. 9 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0318] When the communication device 400 is specifically used in a terminal device, for example, when the communication device 400 is specifically a chip or a chip system, the communication interface 410 may output or receive a baseband signal. When the communication device 400 is specifically a terminal device, the communication interface 410 may output or receive a radio frequency signal.

[0319] It should be noted that the communication device 400 can execute the relevant steps of the terminal device in the aforementioned method embodiment. For details, please refer to the implementation methods provided in the above steps, which will not be repeated here.

[0320] For each device or product applied to or integrated in the device, each module contained therein can be implemented in the form of hardware such as circuits, and different modules can be located in the same component (for example, a chip, circuit module, etc.) or different components in the terminal, or at least some of the modules can be implemented in the form of a software program that runs on a processor integrated inside the terminal, and the remaining (if any) modules can be implemented in the form of hardware such as circuits.

[0321] The above-mentioned memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable ROM (PROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM) or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static ram (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0322] The present application provides a chip. The chip includes: a processor and a memory. The number of the processors can be one or more, and the number of the memories can be one or more. The processor can execute the above instructions and data stored in the memory by reading the instructions and data stored in the memory. Figure 3 , Figure 4 as well as Figure 5 The method shown in and the steps performed by the relevant implementation methods.

[0323] like Fig.10 As shown, Fig.10 500 is a schematic diagram of a module device provided in an embodiment of the present application. The module device 500 can execute the steps related to the terminal device in the aforementioned method embodiment, or the module device 500 can execute the steps related to the network device in the aforementioned method embodiment.

[0324] The module device 500 includes: a communication module 510, a power module 520, a storage module 530 and a chip module 540. The power module 520 is used to provide power to the module device; the storage module 530 is used to store data and / or instructions; the communication module 510 is used to communicate with external devices; the chip module 540 is used to call the data and / or instructions stored in the storage module 530, and in combination with the communication module 510, the above-mentioned Figure 3 , Figure 4 as well as Figure 5 The method shown, and the steps performed by the relevant implementation method.

[0325] The present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and the computer program includes program instructions. When the electronic device executes the program instructions, the above Figure 3 , Figure 4 as well as Figure 5 The steps performed by the terminal device in the method shown, or the implementation of the above Figure 3 , Figure 4 as well as Figure 5 The steps performed by the network device in the method shown.

[0326] The computer-readable storage medium may be an internal storage unit of the terminal device or network device described in any of the foregoing embodiments, such as a hard disk or memory of the device. The computer-readable storage medium may also be an external storage device of the terminal device or network device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the device. Further, the computer-readable storage medium may also include both an internal storage unit of the terminal device or network device and an external storage device. The computer-readable storage medium is used to store the computer program and other programs and data required by the terminal device or network device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more available media sets. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a high-density digital video disc (DVD)), or a semiconductor medium. The semiconductor medium may be a solid-state hard disk.

[0327] Regarding the various modules / units included in the various devices and products described in the above embodiments, they can be software modules / units, or hardware modules / units, or they can be partially software modules / units and partially hardware modules / units. For example, for various devices and products applied to or integrated in a chip, the various modules / units included therein can all be implemented in the form of hardware such as circuits, or at least some of the modules / units can be implemented in the form of software programs, which run on a processor integrated inside the chip, and the remaining (if any) modules / units can be implemented in the form of hardware such as circuits; for various devices and products applied to or integrated in a chip module, the various modules / units included therein can all be implemented in the form of hardware such as circuits, and different modules / units can be located in the same component of the chip module (such as a chip, circuit module, etc.) or in different components, or at least some of the modules / units can be implemented in the form of software programs. It is implemented in the form of a software program, which runs on a processor integrated inside the chip module, and the remaining (if any) modules / units can be implemented in hardware such as circuits; for each device or product applied to or integrated in the data acquisition node, each module / unit contained therein can be implemented in hardware such as circuits, and different modules / units can be located in the same component (for example, chip, circuit module, etc.) or in different components in the terminal, or, at least some modules / units can be implemented in the form of a software program, which runs on a processor integrated inside the data acquisition node, and the remaining (if any) modules / units can be implemented in hardware such as circuits.

[0328] The above embodiments may be implemented in whole or in part by software, hardware, firmware or any other combination thereof. When implemented using software, the above embodiments may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. 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 site, computer, server or data center to another website site, computer, server or data center by wired or wireless means.

[0329] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0330] In the several embodiments provided in the present application, it should be understood that the disclosed methods, devices and systems can be implemented in other ways. For example, the device embodiments described above are merely schematic; for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation; for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0331] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0332] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0333] The above-mentioned integrated unit implemented in the form of a software functional unit can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a gateway node, etc.) to perform some steps of the method described in each embodiment of the present invention.

[0334] A person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The storage medium can be a disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0335] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the application.

Claims

1. A transmission configuration method, characterized in that: include: Configuration information is received, wherein the configuration information includes first transmission configuration indication TCI state information and / or at least one second TCI state information, wherein the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

2. The method according to claim 1, characterized in that The first TCI state information includes a TCI state that can be used for downlink transmission, including: The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

3. The method according to claim 1 or 2, characterized in that The method further comprises: Receive first indication information, wherein the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

4. The method according to any one of claims 1 to 3, characterized in that: The TCI state in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state; The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

5. The method according to claim 4, characterized in that The method further comprises: Second indication information is received, where the second indication information indicates that the TCI state used for downlink transmission is only the TCI state included in the first TCI state information.

6. The method according to claim 4, characterized in that The method further comprises: Third indication information is received, where the third indication information indicates that a second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

7. The method according to claim 4, characterized in that The second TCI state included in each second TCI state information in the at least one second TCI state information is predefined as being only used for uplink transmission.

8. The method according to any one of claims 1 to 3, characterized in that: The TCI state in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

9. The method according to claim 4 or 8, characterized in that The TCI state included in the first TCI state information is a separate TCI state or a combined TCI state.

10. The method according to claim 9, characterized in that The TCI state included in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state. The first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

11. The method according to claim 9, characterized in that The TCI state included in the first TCI state information is a joint TCI state, and the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

12. The method according to any one of claims 1 to 11, characterized in that: The number of the second TCI status information is two; and the method further includes: Receive fourth indication information, where the fourth indication information indicates a TCI state used for uplink transmission, where the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

13. A transmission configuration method, characterized in that: include: Send configuration information, the configuration information including first transmission configuration indication TCI state information and / or at least one second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

14. The method according to claim 13, characterized in that The first TCI state information includes a TCI state that can be used for downlink transmission, including: The first TCI state information includes a TCI state that can be used for downlink transmission associated with a single transmitting / receiving point TRP.

15. The method according to claim 13 or 14, characterized in that The method further comprises: Send first indication information, wherein the first indication information indicates that the number of TRPs associated with the downlink transmission is single.

16. The method according to any one of claims 13 to 15, characterized in that: The TCI state in the second TCI state information is a joint TCI state; each second TCI state information in the at least one second TCI state information includes a second TCI state; The second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

17. The method according to claim 16, characterized in that The method further comprises: Send second indication information, where the second indication information indicates that the TCI state of the downlink transmission is only the TCI state included in the first TCI state information.

18. The method according to claim 16, characterized in that The method further comprises: Send third indication information, where the third indication information indicates that the second TCI state included in each second TCI state information in the at least one second TCI state information is only used for uplink transmission.

19. The method according to claim 16, characterized in that The second TCI state included in each second TCI state information in the at least one second TCI state information is predefined as being only used for uplink transmission.

20. The method according to any one of claims 13 to 15, characterized in that The TCI state in the second TCI state information is a separated TCI state, the second TCI state information only includes a second uplink TCI state, and the second uplink TCI state is used for uplink transmission.

21. The method according to claim 16 or 20, characterized in that The TCI state included in the first TCI state information is a separate TCI state or a combined TCI state.

22. The method according to claim 21, characterized in that The TCI state included in the first TCI state information is a separated TCI state, and the first TCI state information includes a first uplink TCI state and / or a first downlink TCI state. The first uplink TCI state is used for uplink transmission, and the first downlink TCI state is used for downlink transmission.

23. The method of claim 21, wherein: The TCI state included in the first TCI state information is a joint TCI state, and the first TCI state information includes a first TCI state, and the first TCI state is used for uplink transmission and downlink transmission.

24. The method according to any one of claims 13 to 23, characterized in that The method further comprises: Send fourth indication information, where the fourth indication information indicates a TCI state used for uplink transmission, where the TCI state used for uplink transmission is one or two TCI states that can be used for uplink transmission in the first TCI state information and / or the at least two second TCI state information.

25. A communication device, characterized in that: include: A receiving unit is used to receive configuration information, wherein the configuration information includes first transmission configuration indication TCI state information and / or at least one second TCI state information, wherein the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

26. A communication device, characterized in that: include: A sending unit, used to send configuration information, the configuration information including first transmission configuration indication TCI state information and / or at least one second TCI state information, the first TCI state information includes a TCI state that can be used for downlink transmission, and the first TCI state information and / or the at least one second TCI state information include a TCI state that can be used for uplink transmission.

27. A communication device, characterized in that: The communication device includes a processor and a memory, and the processor and the memory are connected to each other, wherein the memory is used to store a computer program, and the computer program includes program instructions. The processor calls the program instructions to execute the method according to any one of claims 1 to 12, or executes the method according to any one of claims 13 to 24.

28. A chip, characterized in that: The chip includes a processor and an interface, and the processor is coupled to the interface; the interface is used to receive or output signals, and the processor is used to execute code instructions, execute the method as described in any one of claims 1 to 12, or execute the method as described in any one of claims 13 to 24.

29. A module device, characterized in that: The module device includes a communication module, a power module, a storage module and a chip module, wherein: The power module is used to provide electrical energy to the module device; The storage module is used to store data and / or instructions; The communication module is used to communicate with external devices; The chip module is used to call the data and / or instructions stored in the storage module to execute the method described in any one of claims 1 to 12, or to execute the method described in any one of claims 13 to 24.

30. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, wherein the computer program includes program instructions. When a computer executes the program instructions, the method according to any one of claims 1 to 12 is implemented; or the method according to any one of claims 13 to 24 is implemented.

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