WO2025098298A1 - Communication method and communication apparatus - Google Patents

Abstract

Embodiments of the present application provide a communication method and a communication apparatus, which avoid the waste of communication resources caused by a terminal device using non-adaptive configuration information to perform uplink communication, thereby reducing system overhead. The method comprises: a terminal device receives a first correspondence; the terminal device receives first information, the first information comprising a first reference signal or a first transmission configuration indication (TCI) state index; the terminal device determines first configuration information on the basis of the first information and the first correspondence; and the terminal device performs uplink communication on the basis of the first configuration information.

Description

Communication method and communication device

This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on November 9, 2023, with application number 202311498698.X and application name “Communication Method and Communication Device”, the entire contents of which are incorporated by reference in this application.

Technical Field

The embodiments of the present application relate to the field of communications, and more specifically, to a communication method and a communication device.

Background Art

In terrestrial communications, the concept of hypercell is introduced to solve the problem of frequent switching of terminal devices. Hypercell is a networking technology that merges multiple physical cells into one logical cell. Different physical cells are configured with the same physical cell identifier (PCI) and cell global identity (CGI). As shown in Figure 1, the different physical cells included in the hypercell are independently scheduled by different transmission and receiving points (TRPs). Each terminal device can only send and receive data under one TRP at each time. When the terminal device moves between different TRPs, the network device will measure the reference signal receiving power (RSRP) of the uplink sounding reference signal (SRS) of the terminal device under each TRP, and judge whether there is a TRP with a better RSRP based on this. When there is a better candidate TRP, the network device will use the candidate TRP as the TRP for the new service, and then schedule and allocate resources to the terminal device under the TRP of the new service without signaling reconfiguration, thereby achieving seamless switching. Among them, since the distance difference between different TRPs to the terminal device is small in the hypercell scenario, the distance between different TRPs is close. For example, in the high-speed rail scenario, the distance between different TRPs is about 500 meters. Therefore, after the TRP of the serving terminal device is switched, the terminal device side usually does not need to make large configuration information (such as timing advance (TA)) adjustments or no adjustments are required.

In satellite communications corresponding to non-terrestrial networks (NTN), due to the long distance between satellites and ground terminals, the configuration information (such as TA) corresponding to different satellites is different. When TRP switching occurs, the terminal device's configuration information for the satellite before the switch cannot continue to be used on the satellite after the terminal device switches, otherwise it will affect the normal communication of the terminal device.

Summary of the invention

The embodiments of the present application provide a communication method and a communication device to avoid the waste of communication resources caused by the terminal device using inappropriate configuration information for uplink communication, thereby saving system overhead.

In order to achieve the above objectives, this application adopts the following technical solutions:

In a first aspect, a communication method is provided, which 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 of the terminal device, or by a logic module or software that can implement all or part of the functions of the terminal device. Taking the method being executed by a terminal device as an example, the method includes: the terminal device receives a first correspondence; the terminal device receives first information, the first information including a first reference signal or a first transmission configuration indication TCI state index; the terminal device determines first configuration information according to the first information and the first correspondence; the terminal device performs uplink communication according to the first configuration information.

According to the communication method provided in the embodiment of the present application, the terminal device can determine the first configuration information based on the first information and the first corresponding relationship, and then perform uplink communication based on the first configuration information, thereby avoiding the waste of communication resources caused by the terminal device using inappropriate configuration information for uplink communication, thereby saving system overhead.

In an embodiment of the present application, the first correspondence relationship includes a correspondence between multiple information in the first information set and multiple configuration information in the first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information.

In a possible implementation, the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. This solution can enable the terminal device to determine the first configuration information according to the at least one information.

In another possible implementation, the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information. The method also includes: the terminal device receives the first indication information; the terminal device determines the first configuration information based on the first information and the first corresponding relationship, including: the terminal device determines the first configuration information based on the first information, the first corresponding relationship, and the first indication information. In an embodiment of the present application, the terminal device can determine at least one configuration information in the first configuration information set based on the first information and the first corresponding relationship, and then determine the first configuration information in the at least one configuration information based on the first indication information. This scheme can enable the terminal device to determine the first configuration information in the at least one configuration information based on the first indication information.

In the embodiment of the present application, the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS.

In the embodiment of the present application, the first configuration information includes at least one of the following: parameters of a common timing advance TA, satellite ephemeris, and TA compensation. This solution can reduce the amount of information that the first configuration information needs to carry, saving resources.

In an embodiment of the present application, the first configuration information also includes at least one of the following: satellite ephemeris time (epochtime), polarization information of downlink transmission of the service link (polarizationDL), polarization information of uplink transmission of the service link (polarizationUL), scheduling offset (kmac), uplink synchronization offset rate duration (Ulsyncvalidityduration), cell-specific K compensation amount (cellspecificKoffset), and TA report (TA-report).

In a second aspect, a communication method is provided, which can be executed by a network device, or by a component of the network device, such as a processor, a chip, or a chip system of the network device, or can be implemented by a logic module or software that can implement all or part of the functions of the network device. Taking the method being executed by a network device as an example, the method includes: the network device sends a first correspondence, the first correspondence is used to determine first configuration information, and the first configuration information is used for uplink communication; the network device sends first information, and the first information includes a first reference signal or a first transmission configuration indication TCI state index.

According to the communication method provided in the embodiment of the present application, the terminal device can determine the first configuration information based on the first information and the first corresponding relationship, and then perform uplink communication based on the first configuration information, thereby avoiding the waste of communication resources caused by the terminal device using inappropriate configuration information for uplink communication, thereby saving system overhead.

In an embodiment of the present application, the first correspondence relationship includes a correspondence relationship between multiple information in the first information set and multiple configuration information in the first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information. In a possible implementation, the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. This solution can enable the terminal device to determine the first configuration information based on the at least one information.

In another possible implementation, the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information; the method further includes: the network device sends first indication information, the first indication information is used to indicate the first configuration information included in the at least one configuration information. This solution can enable the terminal device to determine the first configuration information in the at least one configuration information according to the first indication information.

In the embodiment of the present application, the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS.

In the embodiment of the present application, the first configuration information includes at least one of the following: parameters of a common timing advance TA, satellite ephemeris, and TA compensation. This solution can reduce the amount of information that the first configuration information needs to carry, saving resources.

In an embodiment of the present application, the first configuration information also includes at least one of the following: satellite ephemeris time (epochtime), polarization information of downlink transmission of the service link (polarizationDL), polarization information of uplink transmission of the service link (polarizationUL), scheduling offset (kmac), uplink synchronization offset rate duration (Ulsyncvalidityduration), cell-specific K compensation amount (cellspecificKoffset), and TA report (TA-report).

In a third aspect, a communication device is provided for implementing the above-mentioned various methods. The communication device may be the terminal device in the first aspect, or a device included in the terminal device, such as a chip; or the communication device may be the network device in the second aspect, or a device included in the network device, such as a chip.

The communication device includes a module, unit, or means corresponding to the above method, which can be implemented by hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units corresponding to the above functions.

In some possible designs, the communication device may include a processing module and a communication module. The communication module may include an output module (or a sending module) and an input module (or a receiving module), respectively used to implement the output-type (or sending-type) and input-type (or receiving-type) functions in any of the above aspects and any possible designs thereof. The processing module may be used to implement the processing functions in any of the above aspects and any possible designs thereof.

Optionally, the communication device further comprises a storage module for storing program instructions and data.

In a fourth aspect, a communication device is provided, comprising: at least one processor, the processor being used to run a computer program or instruction, or being used to enable the communication device to perform any of the above methods through a logic circuit. The communication device may be the terminal device in the first aspect, or a device included in the terminal device, such as a chip; or the communication device may be the network device in the second aspect, or a device included in the network device, such as a chip.

In some possible designs, the communication device further includes a memory for storing computer instructions and/or configuration files of logic circuits. Optionally, the memory is integrated with the processor, or the memory is independent of the processor.

In a possible design, the communication device further includes a communication interface for inputting and/or outputting signals.

In some possible designs, the communication interface is an interface circuit for reading and writing computer instructions. For example, the interface circuit is used to receive computer execution instructions (computer execution instructions are stored in a memory, may be read directly from the memory, or may pass through other devices) and transmit them to the processor.

In some possible designs, the communication interface is used to communicate with modules outside the communication device.

In some possible designs, the communication device may be a chip system. Wherein, when the communication device is a chip system, the chip system may include a chip, or may include a chip and other discrete devices.

In a fifth aspect, a communication device is provided, comprising: a logic circuit and an interface circuit; the interface circuit is used to input information and/or output information; the logic circuit is used to execute the method of any of the above aspects, and process and/or generate output information according to the input information. The communication device can be the terminal device in the first aspect, or a device included in the terminal device, such as a chip; or the communication device can be the network device in the second aspect, or a device included in the network device, such as a chip.

It can be understood that when the communication device provided in any one of the third to fifth aspects is a chip, the above-mentioned sending action/function can be understood as output information, and the above-mentioned receiving action/function can be understood as input information.

In a sixth aspect, a computer-readable storage medium is provided, in which a computer program or instruction is stored. When the computer program or instruction is executed by a processor, the method of any of the above aspects is executed.

In a seventh aspect, a computer program product is provided, which, when executed by a processor, enables the method of any of the above aspects to be executed.

In an eighth aspect, a communication device is provided, comprising a module/unit for executing the method of the first aspect or the second aspect.

In a ninth aspect, a communication system is provided, the communication system comprising the terminal device described in the first aspect and the network device described in the second aspect. The terminal device and the network device can be implemented as the communication apparatus provided in any one of the third to fifth aspects.

Among them, the technical effects brought about by any design method in the third to ninth aspects can refer to the technical effects brought about by different design methods in the above-mentioned first or second aspects, and will not be repeated here.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of cell switching using Hypercell technology in a terrestrial network provided in an embodiment of the present application;

FIG2 is a schematic diagram of a communication system provided in an embodiment of the present application;

FIG3 is a schematic diagram of an application scenario provided by an embodiment of the present application;

FIG4 is a schematic diagram of a communication device 400 provided in an embodiment of the present application;

FIG5 is a schematic diagram of a communication method provided in an embodiment of the present application;

FIG6 is a schematic diagram of a communication method provided in an embodiment of the present application;

FIG7 is a schematic diagram of a communication method provided in an embodiment of the present application;

FIG8 is a schematic diagram of a communication device provided in an embodiment of the present application.

DETAILED DESCRIPTION

In the description of this application, unless otherwise specified, "/" indicates that the objects associated with each other are in an "or" relationship, for example, A/B can represent A or B; "and/or" in this application is merely a description of the association relationship between associated objects, indicating that three relationships may exist, for example, A and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural.

In the description of this application, unless otherwise specified, "plurality" means two or more than two. "At least one of the following items (or items)" or similar expressions refers to any combination of these items, including any combination of single items (or items) or plural items (or items). For example, at least one of a, b and (or) c can be represented by: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, c can be single or plural.

In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same items or similar items with substantially the same functions and effects. Those skilled in the art can understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit the difference.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

It is understood that the "embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics are not necessarily the same as those of the embodiment. The structures or characteristics may be combined in any suitable manner in one or more embodiments. It is understood that in various embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and 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.

It can be understood that in the present application, "when" and "if" both mean that corresponding processing will be carried out under certain objective circumstances, and do not limit the time, nor do they require any judgment action when implementing, nor do they mean the existence of other limitations.

It can be understood that some optional features in the embodiments of the present application may be implemented independently in certain scenarios without relying on other features, such as the solution on which they are currently based, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to needs in certain scenarios. Accordingly, the devices provided in the embodiments of the present application may also realize these features or functions accordingly, which will not be elaborated here.

In this application, unless otherwise specified, the same or similar parts between the various embodiments can refer to each other. In the various embodiments of this application, if there is no special description and logical conflict, the terms and/or descriptions between different embodiments are consistent and can be referenced to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships. The following description of the implementation methods of this application does not constitute a limitation on the scope of protection of this application.

FIG2 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in FIG2, the communication system includes a network device and a terminal device. Among them, the network device may include multiple communication nodes, each communication node can serve a physical cell, and is controlled by a control unit of the network device. The same terminal device communicates in a physical cell at the same time. When switching cells, the terminal device does not need to perform a random access process, and the network device can directly control the terminal device to switch to another cell; exemplarily, the communication node may be a TRP.

A network device is an entity that sends or receives signals and is used to communicate with terminal devices.

Terminal device is an entity that sends or receives signals and is used to communicate with network devices.

The technical solution provided in the embodiments of the present application can be applied to the 4th generation (4G) system, the 5th generation (5G) system, NTN system, vehicle to everything (V2X), LTE-vehicle (LTE-V), vehicle to vehicle (V2V), vehicle network, machine type communications (MTC), Internet of things (IoT), LTE-machine to machine (LTE-M), machine to machine (M2M), Internet of things, etc., and the embodiments of the present application do not make specific limitations on this.

As a possible application scenario, the NTN system may include a satellite system. According to the satellite altitude, that is, the satellite orbit altitude, the satellite system can be divided into highly elliptical orbiting (HEO) satellites, geostationary earth orbit (GEO) satellites, medium earth orbit (MEO) satellites and low-earth orbit (LEO) satellites. In addition, the NTN system may also include aerial network equipment such as a high altitude platform station (HAPS) communication system. The aerial network equipment involved in this application is not limited to the above examples. Figure 3 is a schematic diagram of an application scenario provided by an embodiment of the present application. As shown in Figure 3, the network device can be used as a base station for wireless communication; the ground station can forward signaling between the network device and the core network. At least one communication node is deployed on each satellite, and multiple communication nodes deployed on multiple satellites are controlled by a control unit of a network device. When a terminal device performs a cell switch (for example, the terminal device moves and causes a cell switch), it can directly switch from one communication node to another without the need for a radio resource control (RRC) protocol configuration process.

Optionally, the terminal device involved in the present application can be a user equipment (UE), access terminal, terminal unit, user station, terminal station, mobile station, mobile station, remote station, remote terminal, user terminal terminal equipment, TE), mobile device, wireless communication device, terminal agent, tablet computer (pad), handheld device with wireless communication function, computing device or other processing device connected to a wireless modem, vehicle-mounted device, vehicle-mounted transceiver unit, wearable device, or terminal device in a 4G network, or a 5G network, or a public land mobile network (PLMN) evolved after 5G. The access terminal can be 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 vehicle-mounted device, a drone, a robot, a smart point of sale (POS) machine, a customer-premises equipment (CPE) or a wearable device, virtual reality (virtual reality, VR) terminal equipment, augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart city, wireless terminals in smart home, etc. Alternatively, the terminal can be a terminal with communication function in IoT, such as V2X The terminal may be a terminal in a mobile or fixed manner.

Optionally, the network device involved in the present application may be a device for communicating with a terminal device, for example, it may include an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in an LTE system or an LTE-A system, such as a traditional macro base station eNB and a micro base station eNB in a heterogeneous network scenario. Alternatively, it may include a next generation node B (next generation node B, gNB) in an NR system. Alternatively, it may include a transmission reception point (TRP), a home base station (e.g., home evolved NodeB, or home Node B, HNB), a baseband unit (base band unit, BBU), a baseband pool (BBU pool), or a wireless fidelity (wireless fidelity, WiFi) access point (access point, AP), etc. Alternatively, it may include a base station in a non-terrestrial network (NTN), that is, it may be deployed on a flying platform or a satellite. In the NTN, the network device may be a layer 1 (L1) relay, or a base station, or an integrated access and backhaul (IAB) node. Alternatively, the network device may be a device that implements the base station function in IoT, such as a device that implements the base station function in drone communications, V2X, D2D, or M2M.

In some possible scenarios, the network equipment may also be a module or unit that can implement some functions of the base station. For example, the access network equipment may be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU). The CU and DU may be set separately, or may be included in the same network element, such as a baseband unit (BBU). The RU may be included in a radio frequency device or radio unit, such as a remote radio unit (RRU), an active antenna unit (AAU), or a remote radio head (RRH).

In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the access network device may be a network device or a module of a network device in an open radio access network (open RAN, ORAN) system. In the ORAN system, CU may also be referred to as open (open, O)-CU, DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. Any of the CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

Optionally, the base station in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also called small stations), relay stations, access points, home base stations, TRPs, transmitting points (TP), mobile switching centers, etc., and the embodiments of the present application do not make specific limitations on this.

Optionally, the core network device involved in the embodiment of the present application is used to implement functions such as mobility management, data processing, session management, policy and billing. The names of the devices that implement the core network functions in systems with different access technologies may be different, and the embodiments of the present application do not limit this. Taking the 5G system as an example, the core network device includes: access and mobility management function (AMF), session management function (SMF), policy control function (PCF) or user plane function (UPF), etc.

It should be noted that the communication system described in the embodiment of the present application is for the purpose of more clearly illustrating the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided in the embodiment of the present application. A person of ordinary skill in the art can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solution provided in the embodiment of the present application is also applicable to similar technical problems.

Optionally, the relevant functions of the network equipment and terminal equipment involved in the present application can be implemented by one device, or by multiple devices together, or by one or more functional modules within a device, or can be one or more chips, or a system on chip (system on chip, SOC) or a chip system. The chip system can be composed of chips, or can include chips and other discrete devices, and the embodiments of the present application do not specifically limit this.

It is understandable that the above functions can be network elements in hardware devices, software functions running on dedicated hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (e.g., a cloud platform).

For example, the relevant functions of the network device and the terminal device involved in the present application can be implemented by the communication device 400 in Figure 4. Figure 4 is a schematic diagram of the structure of the communication device 400 provided in an embodiment of the present application. The communication device 400 includes one or more processors 401, a communication line 402, and at least one communication interface (Figure 4 is only exemplary to include a communication interface 404 and a processor 401 as an example for explanation), and optionally may also include a memory 403.

Processor 401 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

The communication line 402 may include a path for connecting different components.

The communication interface 404 may be a transceiver module for communicating with other devices or communication networks, such as Ethernet, RAN, wireless local area networks (WLAN), etc. For example, the transceiver module may be a device such as a transceiver or a transceiver. Optionally, the communication interface 404 may also be a transceiver circuit located in the processor 401 to implement signal input and signal output of the processor.

The memory 403 may be a device with a storage function. For example, it may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via the communication line 402. The memory may also be integrated with the processor.

The memory 403 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 401. The processor 401 is used to execute the computer-executable instructions stored in the memory 403, thereby realizing the communication method provided in the embodiment of the present application.

Alternatively, optionally, in an embodiment of the present application, the processor 401 may also perform processing-related functions in the communication method provided in the following embodiments of the present application, and the communication interface 404 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiments of the present application.

Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

In a specific implementation, as an embodiment, the processor 401 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 4 .

In a specific implementation, as an embodiment, the communication device 400 may include multiple processors, such as the processor 401 and the processor 407 in FIG. 4 . Each of these processors may be a single-core processor or a multi-core processor. The processors here may include but are not limited to at least one of the following: a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), a microcontroller (MCU), or an artificial intelligence processor, etc., and each computing device may include one or more cores for executing software instructions to perform calculations or processing.

In a specific implementation, as an embodiment, the communication device 400 may further include an output device 405 and an input device 406. The output device 405 communicates with the processor 401 and may display information in a variety of ways. For example, the output device 405 may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector. The input device 406 communicates with the processor 401 and may receive user input in a variety of ways. For example, the input device 406 may be a mouse, a keyboard, a touch screen device, or a sensor device.

The above-mentioned communication device 400 may sometimes also be referred to as a communication apparatus, which may be a general-purpose device or a special-purpose device. For example, the communication device 400 may be a desktop computer, a portable computer, a network server, a PDA (personal digital assistant), a mobile phone, a tablet computer, a wireless terminal device, an embedded device, the above-mentioned terminal, the above-mentioned network device, or a device having a similar structure as shown in FIG. 4 . The embodiment of the present application does not limit the type of the communication device 400.

In addition, the composition structure shown in FIG4 does not constitute a limitation on the communication device. In addition to the components shown in FIG4, the communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

The communication method provided in the embodiment of the present application is described below in conjunction with the communication systems shown in FIG. 2 and FIG. 3 .

It should be noted that in the following embodiments of the present application, the message names between network elements, the names of parameters, or the names of information are only examples. In other embodiments, they may also be other names, and the method provided in the present application does not make any specific limitations on this.

It is understandable that in the embodiment of the present application, each network element may perform some or all of the steps in the embodiment of the present application, and these steps or operations are only examples. The embodiment of the present application may also perform other operations or variations of various operations. In addition, each step may be performed in a different order presented in the embodiment of the present application, and it is possible that not all operations in the embodiment of the present application need to be performed.

Figure 5 is a schematic diagram of a communication method provided in an embodiment of the present application. The method is explained by taking the interaction between a network device and a terminal device as an example. Of course, the subject that executes the network device action in the method may also be a device/module in the network device, such as a chip, a processor, a processing unit, etc. in the network device; the subject that executes the terminal device action in the method may also be a device/module in the terminal device, such as a chip, a processor, a processing unit, etc. in the terminal device, and the embodiment of the present application does not specifically limit this. The processing performed by a single execution subject (for example, a network device or a terminal device) in the embodiment of the present application may also be divided into executions by multiple execution subjects, and these execution subjects may be logically and/or physically separated. For example, the processing performed by the network device may be divided into executions by at least one of a CU, a DU, and a RU; for another example, the processing performed by the network device may be divided into executions by an O-CU in an ORAN system (O-CU-CP or O- At least one of the O-CU-UP in the CU, the O-DU and the O-RU is executed. Exemplarily, as shown in FIG5 , a communication method 500 provided in an embodiment of the present application includes:

S510: The network device sends first information to the terminal device. Correspondingly, the terminal device receives the first information from the network device.

In one possible implementation, the first information includes a first reference signal. In an embodiment of the present application, the first reference signal includes at least one of the following: a tracking reference signal (TRS), a channel state information reference signal (CSI-RS), or a demodulation reference signal (DMRS).

In another possible implementation, the first information includes a first transmission configuration indicator (TCI) state index (ID).

In another possible implementation, the first information may include the first communication node ID. In the embodiment of the present application, the first communication node may be a TRP.

In the embodiment of the present application, the first information may also be other signals or information, which is not limited in the embodiment of the present application.

In an embodiment of the present application, the network device may send the first information to the terminal device when the terminal device moves into the coverage area of the cell corresponding to the first communication node.

S520: The terminal device determines first configuration information according to the first information and the first corresponding relationship.

In an embodiment of the present application, the first correspondence relationship includes a correspondence between multiple information in the first information set and multiple configuration information in the first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information.

In an embodiment of the present application, a first configuration information set may include configuration information corresponding to multiple satellites, wherein at least one communication node is deployed on each satellite, and the configuration information corresponding to each satellite is the configuration information of at least one communication node deployed on each satellite. The terminal device can communicate with at least one communication node deployed on the satellite according to the configuration information corresponding to the satellite, and the multiple communication nodes deployed on the multiple satellites are controlled by a network device, wherein the multiple communication nodes include a first communication node.

In a possible implementation, the first information includes a first reference signal, and the first correspondence includes a correspondence between multiple reference signals in the first reference signal set and multiple configuration information in the first configuration information set, wherein the multiple reference signals include the first reference signal. The terminal device may determine the first configuration information based on the first reference signal and the first correspondence.

Exemplarily, the first correspondence is a correspondence between multiple resource locations included in a resource location set of multiple reference signals and multiple configuration information included in a first configuration information set. The terminal device can determine the first configuration information based on the resource location of the received first reference signal and the first correspondence.

Exemplarily, the first reference signal is TRS, and one resource position of TRS can be, for example, frequency band 1, time slot 1, and another resource position can be frequency band 2, time slot 2, and so on. For ease of understanding, Table 1 gives the first corresponding relationship when the reference signal is TRS, wherein TRS ID is used to represent different resource positions of TRS in Table 1, and different configuration information (config) numbers are used to represent different configuration information, and n represents the number of configuration information in the first configuration information set. For example, the terminal device can determine that the first configuration information is config#1 based on the resource position corresponding to TRS ID#0 when the resource position of the received TRS is received.

Table 1

Exemplarily, the first reference signal is CSI-RS. The relevant description and example of the terminal device determining the first configuration information according to the resource location of the received TRS and the first corresponding relationship when the first reference signal is TRS can be referred to, and will not be repeated here.

Exemplarily, the first reference signal is DMRS, and one resource location of DMRS may be, for example, ports set A, and another resource location may be, for example, ports set B, and so on. For ease of understanding, Table 2 gives a first corresponding relationship when the first reference signal is DMRS, wherein in Table 2, DMRS ports set is used to represent different resource locations corresponding to DMRS, different configuration information (config) numbers are used to represent different configuration information, and n represents the number of configuration information in the first configuration information set. For example, the terminal device can determine that the first configuration information is config#1 according to the resource location corresponding to DMRS ports: 7, 8, 11, 13 of the received DMRS.

Table 2

In the embodiment of the present application, the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. When the first information includes a first reference signal, the first configuration information corresponds to at least one reference signal in the first reference signal set, wherein the at least one reference signal includes the first reference signal.

Exemplarily, the reference signal is a TRS, and the first configuration information may correspond to a resource location corresponding to at least one TRS. Solution: Table 3 shows the situation where two resource positions corresponding to TRS correspond to one configuration information when the reference signal is TRS; in Table 3, TRS ID is used to represent different resource positions of TRS, different configuration information (config) numbers are used to represent different configuration information, and n/2 represents the number of configuration information in the first configuration information set. For example, the terminal device can determine that the first configuration information is config#1 based on the resource position corresponding to the received TRS being the resource position corresponding to TRS ID#0, and the terminal device can also determine that the first configuration information is config#1 based on the resource position corresponding to TRS being the resource position corresponding to TRS ID#1, that is, the resource position corresponding to TRS received by the terminal device is the resource position corresponding to TRS ID#0 or the resource position corresponding to TRS received is TRS ID#1, both of which can enable the terminal device to determine that the first configuration information is config#1.

Table 3

In an embodiment of the present application, when the reference signal is DMRS or CSI-RS, the example in which the first configuration information corresponds to at least one DMRS or CSI-RS can refer to the example in which the first configuration information corresponds to at least one TRS when the reference signal is TRS, and the embodiment of the present application will not be repeated here.

As a possible implementation, the first correspondence includes a correspondence between different types of reference signals and multiple configuration information included in the first configuration information set. For example, the terminal device can determine the first configuration information among the multiple configuration information based on the received first reference signal being TRS and the first correspondence, and the terminal device can determine the second configuration information among the multiple configuration information based on the received reference signal being DMRS and the first correspondence, that is, the terminal device can determine the corresponding configuration information based on the different types of the received reference signal and the first correspondence.

In another possible implementation, the first information includes a first TCI state ID, and the first correspondence includes a correspondence between multiple TCI state IDs and multiple configuration information included in the first configuration information set, wherein the multiple TCI state IDs include the first TCI state ID. The terminal device can determine the first configuration information based on the first TCI state ID and the first correspondence.

In an embodiment of the present application, the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. In the case where the first information includes the first TCI state ID, the first configuration information corresponds to at least one TCI state ID in the plurality of TCI state IDs, wherein the at least one TCI state ID includes the first TCI state ID.

In an embodiment of the present application, the network device can configure multiple TCI states for the first communication node, and the multiple TCI states configured for the first communication node correspond to multiple TCI state IDs. The terminal device can determine to perform uplink communication according to the first configuration information based on the multiple first TCI state IDs corresponding to the multiple TCI states configured for the first communication node; or, the network device can activate some or all of the multiple TCI states configured for the first communication node, and the terminal device can determine to perform uplink communication according to the first configuration information based on the activated one or more first TCI state IDs; or, the network device can indicate or send the first TCI state ID to the terminal device, that is, the network device sends first information including the first TCI state ID to the terminal device, and the terminal device can determine to use the first TCI state for uplink communication this time based on the first TCI state ID, and then determine to perform uplink communication according to the first configuration information.

For ease of understanding, Table 4 shows the correspondence between multiple TCI state IDs and multiple configuration information included in the first configuration information set, where n represents the number of configuration information in the first configuration information set. For example, the terminal device can determine that the first configuration information is config#1 based on the TCI states corresponding to the configured TCI states TCI state ID#1,0, TCI state ID#1,1, and TCI state ID#1,2; or, the terminal device can determine that the first configuration information is config#1 based on the TCI states corresponding to the activated TCI states TCI state ID#1,0 and TCI state ID#1,1; or, the terminal device can determine that the first configuration information is config#1 based on the first TCI state ID in the received first information being TCI state ID#1,0, and so on, and the embodiments of the present application are not limited to this.

Table 4

Alternatively, the first TCI state ID may also be an ID of a group of TCI states, as shown in Table 5, the first TCI state ID may be a first TCI state list ID, where n represents the number of configuration information in the first configuration information set. For example, the terminal device may determine that the first configuration information is config#1 based on the TCI states corresponding to the configured multiple TCI states TCI state list ID#1; or, the terminal device may determine that the first configuration information is config#1 based on the TCI states corresponding to the activated multiple TCI states TCI state list ID#1; or, the terminal device may determine that the first configuration information is config#1 based on the received first TCI state ID TCI state list ID#1.

Table 5

In the embodiment of the present application, the TCI state can be a unified TCI state, or a TCI-uplink (UL)-state, or a downlink (DL)-or-joint TCI-state, or a DL TCI-state, or other TCI states, which is not limited in the embodiment of the present application.

It should be noted that the TCI state ID may also be a bandwidth part (BWP) ID. Table 6 shows the correspondence between multiple BWP IDs and multiple configuration information included in the first configuration information set, where n represents the number of configuration information in the first configuration information set. For example, the terminal device may determine that the first configuration information is config#1 based on BWP ID#1,0 or BWP ID#1,1.

Table 6

Alternatively, TCI state ID or BWP ID may also be other IDs, which is not limited in the embodiments of the present application.

In yet another possible implementation, the first correspondence includes a correspondence between multiple communication node IDs and multiple pieces of configuration information included in the first configuration information set.

Exemplarily, the plurality of communication nodes may be a plurality of TRPs. For ease of understanding, Table 7 shows a first correspondence between a plurality of TRP IDs and a plurality of configuration information in the first configuration information set, where n represents the number of configuration information in the first configuration information set. For example, the terminal device may determine that the first configuration information is config#1 based on the received first TRP ID being TRP ID#0.

Table 7

In the embodiment of the present application, the first configuration information corresponds to at least one communication node ID among the multiple communication node IDs, wherein the at least one communication node ID includes the first communication node ID. It should be understood that the first configuration information corresponds to the multiple communication node IDs, and the multiple communication nodes deployed on a satellite may share one configuration information.

In an embodiment of the present application, the first TRP ID may be included in downlink control information (DCI), or in RRC signaling, or in media access control element (MAC-CE) signaling, and the embodiment of the present application does not limit this.

S530, the terminal device performs uplink communication according to the first configuration information.

In the embodiment of the present application, in the embodiment of the present application, the first configuration information may include at least one of the following: parameters of a common TA, satellite ephemeris information (ephemerisInfo), and a TA offset (offset).

Exemplarily, the terminal device can estimate the transmission delay of the signal based on the parameters of the common TA in the first configuration information, and send an uplink signal to the network device in advance by a time corresponding to the transmission delay (i.e., TA), so as to achieve uplink synchronization between the terminal device sending the signal and the network device receiving the signal.

In a possible implementation, the parameters of the common TA may include: common TA (TA _Common ), common TA drift (TA _CommonDrift ), common TA drift rate (TA _{CommonDriftVariant} ), satellite ephemeris time (t _epoch ). The terminal device may determine the transmission delay between the service satellite and the uplink synchronization reference point according to the above parameters, for example, the common delay (Delay _common , or, ); Taking Delay _common as an example, Delay _common and the above parameters satisfy the following relationship:

In another possible implementation, the parameter of the common TA is Delay _common , or, That is, the first configuration information directly indicates Delay _common , or,

In another possible implementation, the parameters of the common TA may include: TA _Common , TA _{CommonDriftVariant} . It should be understood that the parameters of the common TA may be different due to different versions, and this embodiment of the present application does not limit this.

In the embodiment of the present application, the first configuration information also includes at least one of the following: satellite ephemeris time (epoch time), service link downlink transmission time, Polarization information of uplink transmission (polarizationDL), polarization information of uplink transmission of service link (polarizationUL), scheduling offset (kmac), uplink synchronization offset rate duration (Ulsyncvalidityduration), cell-specific K compensation amount (cellspecificKoffset), TA report (TA-report).

In an embodiment of the present application, epochtime is used to indicate the time epoch corresponding to the first configuration information; polarizationDL or polarizationUL includes: right-hand polarization, left-hand polarization, or linear polarization; kmac indicates the scheduling offset provided by the network device when the uplink and downlink subframes are not aligned in the network device; Ulsyncvalidityduration indicates the valid duration of the first configuration information; cellspecificKoffset indicates the scheduling offset of the modified timing relationship; TA-report indicates that TA reporting is enabled during RRC connection establishment, RRC connection recovery, or RRC re-establishment.

According to the communication method provided in the embodiment of the present application, the terminal device can determine the first configuration information based on the first information and the first corresponding relationship, and then perform uplink communication based on the first configuration information, thereby avoiding the waste of communication resources caused by the terminal device using inappropriate configuration information for uplink communication, thereby saving system overhead.

Optionally, in the embodiment of the present application, as shown in FIG5 , before step S510, the communication method further includes:

S501: The network device sends a first corresponding relationship to the terminal device. Correspondingly, the terminal device receives the first corresponding relationship from the network device.

In a possible implementation, the network device determines the first correspondence according to the state information reported by the terminal device (such as the location or movement pattern of the terminal device), and then sends the first correspondence to the terminal device. Exemplarily, the first correspondence may be included in the RRC reconfiguration message.

In another possible implementation manner, the network device and the terminal device pre-agree on a first corresponding relationship, so that the terminal device and the network device can align the first corresponding relationship.

Optionally, in an embodiment of the present application, the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information. As shown in FIG6 , the communication method provided in the embodiment of the present application further includes:

S540: The network device sends first indication information to the terminal device. Correspondingly, the terminal device receives the first indication information from the network device.

In the embodiment of the present application, the first indication information is used to indicate the first configuration information in at least one configuration information.

In an embodiment of the present application, the first information includes a first reference signal, which corresponds to at least one configuration information; or, the first information includes a first TCI state ID, which corresponds to at least one configuration information.

Further, as shown in FIG6 , step S520 in the communication method 500 may be replaced by:

S550, the terminal device determines first configuration information according to the first information, the first corresponding relationship, and the first indication information.

In the embodiment of the present application, the terminal device can determine at least one configuration information based on the first information and the first corresponding relationship, and then determine the first configuration information among the at least one configuration information based on the first indication information.

In the embodiment of the present application, for the convenience of readers to understand, a specific example is given below. Taking TRS as an example, when the number of different resource locations in the resource location set of TRS is less than the number of configuration information in the first configuration information set, the network device can send a first indication information to the terminal device, indicating one of the multiple configuration information determined according to the resource location of TRS. Table 8 shows the corresponding relationship when the number of resource locations in the resource location set of TRS is 6, the number of multiple configuration information in the first configuration information set is 12, and the first indication information is 1 bit. For example, the terminal device can determine config#1 and config#7 based on the resource location of the received TRS corresponding to TRS ID#0. The terminal device then determines config#1 as the first configuration information based on the first indication information being "0", wherein the third row in the table represents the content of the first indication information.

Table 8

Exemplarily, when the number of multiple configuration information in the first configuration information set is less than twice the number of resource locations corresponding to the TRS and greater than the number of resource locations corresponding to the TRS, the first indication information may include 1 bit (bit) for indicating that the terminal device determines one of the two configuration information based on the resource location of the TRS; or, when the number of multiple configuration information in the first configuration information set is greater than twice the number of resource locations of the TRS and less than 4 times the number of resource locations of the TRS, the first indication information may include 2 bits for indicating that the terminal device determines one of 3 or 4 configuration information based on the resource location corresponding to the TRS, and so on, which will not be repeated here.

The communication method provided in the embodiment of the present application enables a terminal device to determine the first configuration information among at least one configuration information through the first indication information.

FIG7 is a schematic diagram of a communication method provided in an embodiment of the present application. The method is illustrated by taking the interaction between a network device and a terminal device as an example. Of course, the subject that executes the network device action in the method may also be a device/module in the network device, such as a chip, a processor, a processing unit, etc. in the network device; the subject that executes the terminal device action in the method may also be a device/module in the terminal device, such as a chip, a processor, a processing unit, etc. in the terminal device, which is not specifically limited in the embodiment of the present application. The processing performed by a single execution subject (for example, a network device or a terminal device) in the embodiment of the present application may also be divided into multiple execution subjects, which may be logically and/or physically separated. For example, the processing performed by the network device may be divided into at least one of a CU, a DU, and a RU; for another example, the processing performed by the network device may be divided into at least one of an O-CU (O-CU-CP in an O-CU or O-CU-UP in an O-CU), an O-DU, and an O-RU in an ORAN system. Exemplarily, as shown in FIG7, a communication method 700 provided in an embodiment of the present application includes:

S710: The terminal device sends first status information to the network device. Correspondingly, the network device receives the first status information from the terminal device.

In an embodiment of the present application, the first status information includes the current motion status of the terminal device, and/or the current location information of the terminal device, or other relevant information, which is not limited in this embodiment of the present application.

S720: The network device sends the first corresponding relationship to the terminal device. Correspondingly, the terminal device receives the first corresponding relationship from the network device.

In an embodiment of the present application, the first correspondence is a correspondence between multiple location information of the terminal device included in the location information set of the terminal device and multiple configuration information included in the first configuration information set, or the first correspondence is a correspondence between multiple time periods included in the time period set and multiple configuration information included in the first configuration information set.

In the embodiment of the present application, the network device can infer the location information set or time period set of the terminal device according to the first state information. For example, the network device can infer the order of the communication nodes that subsequently continuously serve the terminal device and the time period during which at least one communication node on each satellite serves the terminal device according to the motion trajectory of the satellite and the first state information. Further, the network device can determine the first corresponding relationship accordingly.

In the embodiment of the present application, the first configuration information set may refer to the description in method 500 and will not be repeated here.

S730: The terminal device determines first configuration information corresponding to the first location information or the first time period according to the first corresponding relationship and the first location or the first time period of the terminal device.

In the embodiment of the present application, the first location information of the terminal device is one of the multiple location information of the terminal device included in the location information set of the terminal device; the first time period of the terminal device is one of the multiple time periods included in the time period set. Exemplarily, the terminal device can determine the first configuration information corresponding to the first location information based on the first location information of the terminal device and the first corresponding relationship; or, exemplarily, the terminal device can determine the first configuration information corresponding to the first time period based on the current time in the first time period and the first corresponding relationship.

Exemplarily, as shown in Table 9, taking the first correspondence between the multiple time periods included in the time period set and the multiple configuration information included in the first configuration information set as an example, wherein the communication node is TRP, and n represents the number of multiple configuration information included in the first configuration information set. For example, when the first time period is the time period [T _1,on ,T _1,off ], the terminal device determines that the first configuration information is config#1 according to [T _1,on ,T _1,off ].

Table 9

In the embodiment of the present application, the time period in the time period set may be the remaining service time, or the remaining coverage time, which is not limited in the embodiment of the present application.

Exemplarily, the first corresponding relationship is a corresponding relationship between a plurality of location information included in a location information set of a terminal device and a plurality of configuration information included in a first configuration information set.

In a possible implementation, the multiple location information may be the distance between the terminal device and the reference location. For example, if the distance between the terminal device and the reference location is greater than threshold 1, the first configuration information may be determined to be config#1. If the distance between the terminal device and the reference location is greater than threshold 2, the first configuration information may be determined to be config#2. Alternatively, if the distance between the terminal device and the reference location is less than threshold 1, the first configuration information may be determined to be config#1. If the distance between the terminal device and the reference location is less than threshold 2, the first configuration information may be determined to be config#1. Then the first configuration information can be determined to be config#2. Alternatively, if the distance between the terminal device and the reference position #1 is greater than threshold 1,1, and the distance between the terminal device and the reference position #2 is less than threshold 1,2, then the first configuration information can be determined to be config#1; if the distance between the terminal device and the reference position #1 is greater than threshold 2,1, and the distance between the terminal device and the reference position #2 is less than threshold 2,2, then the first configuration information can be determined to be config#2. It should be noted that reference position #1 and reference position #2 can be the same or different, and the embodiments of the present application do not limit this.

In another possible implementation, the multiple location information may also be the depression angle and/or elevation angle of the terminal device relative to a specific satellite. For example, if the elevation angle between the terminal device and the specific satellite is less than the angle range A, the first configuration information may be determined to be config#1. Alternatively, if the elevation angle between the terminal device and the specific satellite #1 is less than the angle range B, and the elevation angle between the terminal device and another specific satellite #2 is greater than the angle range C, the first configuration information may be determined to be config#1.

S740, the terminal device performs uplink communication according to the first configuration information.

In the embodiment of the present application, regarding the terminal device performing uplink communication according to the first configuration information, reference may be made to the description in method 500 and will not be repeated here.

In the communication method provided in the embodiment of the present application, the terminal device sends first status information to the network device, so that the network device determines a first corresponding relationship and sends the first corresponding relationship to the terminal device. The terminal device can use corresponding configuration information for uplink communication in a corresponding time period or location information according to the first corresponding relationship, thereby avoiding waste of communication resources caused by the terminal device using inappropriate configuration information for uplink communication, which is beneficial to saving system overhead.

The above mainly introduces the scheme provided by the embodiment of the present application from the perspective of the interaction between the network device and the terminal device. Accordingly, the embodiment of the present application also provides a communication device, which is used to implement the above various methods. The communication device can be a terminal device in the above method embodiment, or a device including the above terminal device, or a component that can be used for the terminal device; or, the communication device can be a network device in the above method embodiment, or a device including the above network device, or a component that can be used for the network device; it can be understood that the communication device includes a hardware structure and/or software module corresponding to each function in order to implement the above functions. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

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

For example, FIG8 is a schematic diagram of a communication device provided in an embodiment of the present application, and the communication device is taken as a terminal device in the above method embodiment (which may be a chip of a terminal device, or a module of a terminal device, or an internal device of a terminal device) as an example, and the terminal device includes a transceiver module 810 and a processing module 820. The transceiver module 810, which may also be referred to as a transceiver unit for implementing a transceiver function, may be, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.

In an embodiment of the present application, the transceiver module 810 is used to receive a first corresponding relationship. The transceiver module 810 is also used to receive first information, where the first information includes a first reference signal or a first transmission configuration indication TCI state index.

In the embodiment of the present application, the processing module 820 is used to determine the first configuration information according to the first information and the first corresponding relationship, and the processing module 820 is also used to perform uplink communication according to the first configuration information.

Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here. Optionally, the communication device may also include a storage module 830, which can be used to store instructions or and/or data, and the processing module 820 can read the instructions or and/or data in the storage module 830.

In the embodiment of the present application, the terminal device is presented in the form of dividing each functional module in an integrated manner. The "module" here may refer to a specific ASIC, a circuit, a processor and a memory that executes one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can imagine that the first communication node can take the form of a communication device 400 shown in Figure 4.

For example, the processor 401 in the communication device 400 shown in FIG. 4 may call the computer-executable instructions stored in the memory 403 so that the communication device 400 executes the communication method in the above method embodiment.

Specifically, the functions/implementation processes of the transceiver module 810 and the processing module 820 in FIG. 8 can be implemented by the processor 401 in the communication device 400 shown in FIG. 4 calling the computer execution instructions stored in the memory 403. Alternatively, the functions/implementation processes of the processing module 820 in FIG. 8 The implementation process can be achieved by the processor 401 in the communication device 400 shown in Figure 4 calling the computer execution instructions stored in the memory 403, and the function/implementation process of the transceiver module 810 in Figure 8 can be achieved by the communication interface 404 in the communication device 400 shown in Figure 4.

Since the terminal device provided in the embodiment of the present application (which may be a chip of the terminal device, or a module of the terminal device, or an internal device of the terminal device) can execute the above-mentioned communication method, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be repeated here.

Alternatively, taking the communication device as a network device in the above method embodiment (which may be a chip of the network device, or a module of the network device, or an internal device of the network device) as an example, the network device includes a transceiver module 810 and a processing module 820. The transceiver module 810, which may also be referred to as a transceiver unit, is used to implement the transceiver function, and may be, for example, a transceiver circuit, a transceiver, a transceiver or a communication interface.

In the embodiment of the present application, the transceiver module 810 is used to send a first correspondence relationship, the first correspondence relationship is used to determine first configuration information, and the first configuration information is used for uplink communication. The transceiver module 810 is also used to send first information, the first information includes a first reference signal or a first transmission configuration indication TCI state index.

Among them, all relevant contents of each step involved in the above method embodiment can be referred to the functional description of the corresponding functional module, which will not be repeated here. Optionally, the communication device may also include a storage module 830, which can be used to store instructions or and/or data, and the processing module 820 can read the instructions or and/or data in the storage module 830.

In the embodiment of the present application, the network device is presented in the form of dividing each functional module in an integrated manner. The "module" here can refer to a specific ASIC, circuit, processor and memory that executes one or more software or firmware programs, integrated logic circuit, and/or other devices that can provide the above functions. In a simple embodiment, those skilled in the art can imagine that the network device can take the form of a communication device 400 shown in Figure 4.

For example, the processor 401 in the communication device 400 shown in FIG. 4 may call the computer-executable instructions stored in the memory 403 so that the communication device 400 executes the communication method in the above method embodiment.

Specifically, the functions/implementation process of the transceiver module 810 and the processing module 820 in FIG8 can be implemented by the processor 401 in the communication device 400 shown in FIG4 calling the computer execution instructions stored in the memory 403. Alternatively, the functions/implementation process of the processing module 820 in FIG8 can be implemented by the processor 401 in the communication device 400 shown in FIG4 calling the computer execution instructions stored in the memory 403, and the functions/implementation process of the transceiver module 810 in FIG8 can be implemented by the communication interface 404 in the communication device 400 shown in FIG4.

Since the network device provided in the embodiment of the present application (which may be a chip of the network device, or a module of the network device, or an internal device of the network device) can execute the above-mentioned communication method, the technical effects that can be obtained can be referred to the above-mentioned method embodiment and will not be repeated here.

It should be understood that one or more of the above modules or units can be implemented by software, hardware or a combination of the two. When any of the above modules or units is implemented in software, the software exists in the form of computer program instructions and is stored in a memory, and the processor can be used to execute the program instructions and implement the above method flow. The processor can be built into an SoC (system on chip) or an ASIC, or it can be an independent semiconductor chip. In addition to the core used to execute software instructions for calculation or processing in the processor, it can further include necessary hardware accelerators, such as field programmable gate arrays (FPGA), PLDs (programmable logic devices), or logic circuits that implement dedicated logic operations.

When the above modules or units are implemented in hardware, the hardware can be any one or any combination of a CPU, a microprocessor, a digital signal processing (DSP) chip, a microcontroller unit (MCU), an artificial intelligence processor, an ASIC, a SoC, an FPGA, a PLD, a dedicated digital circuit, a hardware accelerator or a non-integrated discrete device, which can run the necessary software or not rely on the software to execute the above method flow.

Optionally, an embodiment of the present application further provides a communication device (for example, the communication device may be a chip or a chip system), which includes a processor for implementing the method in any of the above method embodiments. In one possible design, the communication device also includes a memory. The memory is used to store necessary program instructions and data, and the processor can call the program code stored in the memory to instruct the communication device to execute the method in any of the above method embodiments. Of course, the memory may not be in the communication device. When the communication device is a chip system, it may be composed of chips, or it may include chips and other discrete devices, which is not specifically limited in the embodiments of the present application.

Optionally, an embodiment of the present application further provides a computer-readable storage medium, which stores a computer program or instruction, and when the computer-readable storage medium is run on a communication device, the communication device can execute the method described in any of the above method embodiments or any of its implementation methods.

Optionally, the embodiment of the present application further provides a communication system, the communication system comprising the network device and the terminal described in the above method embodiment. Terminal device.

In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it can 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. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can 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 can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more media integrated. Available media can be magnetic media (e.g., floppy disks, hard disks, tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid state drives (SSDs)), etc.

Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims (29)

A communication method, comprising: receiving a first correspondence; receiving first information, where the first information includes a first reference signal or a first transmission configuration indication TCI state index; Determine first configuration information according to the first information and the first corresponding relationship; Perform uplink communication according to the first configuration information. The method according to claim 1 is characterized in that the first correspondence includes a correspondence between multiple information in a first information set and multiple configuration information in a first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information. The method according to claim 2 is characterized in that the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. The method according to claim 2, characterized in that the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information; The method further comprises: receiving first indication information; The determining the first configuration information according to the first information and the first corresponding relationship includes: The first configuration information is determined according to the first information, the first corresponding relationship, and the first indication information. The method according to any one of claims 1 to 4 is characterized in that the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS. The method according to any one of claims 1 to 5, characterized in that the first configuration information includes at least one of the following: Common timing advance TA parameters, satellite ephemeris, and TA compensation. A communication method, comprising: Sending a first correspondence relationship, where the first correspondence relationship is used to determine first configuration information, where the first configuration information is used for uplink communication; Send first information, where the first information includes a first reference signal or a first transmission configuration indication TCI state index. The method according to claim 7 is characterized in that the first correspondence includes a correspondence between multiple information in the first information set and multiple configuration information in the first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information. The method according to claim 8 is characterized in that the first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes the first information. The method according to claim 8, characterized in that the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information; The method further comprises: Sending first indication information, where the first indication information is used to indicate the first configuration information included in the at least one configuration information. The method according to any one of claims 7 to 10 is characterized in that the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS. The method according to any one of claims 7 to 11 is characterized in that the first configuration information includes at least one of the following: parameters of a common timing advance TA, satellite ephemeris, and a TA compensation amount. A communication device, comprising: A transceiver module, used for receiving a first corresponding relationship; The transceiver module is further used to receive first information, where the first information includes a first reference signal or a first transmission configuration indication TCI state index; A processing module, configured to determine first configuration information according to the first information and the first corresponding relationship; The processing module is further configured to perform uplink communication according to the first configuration information. The device according to claim 13, characterized in that The first correspondence relationship includes a correspondence relationship between multiple information in a first information set and multiple configuration information in a first configuration information set, wherein the multiple information includes the first information, and the multiple configuration information includes the first configuration information. The device according to claim 14, characterized in that The first configuration information corresponds to at least one information in the first information set, wherein the at least one information includes Describe the first information. The apparatus according to claim 14, wherein the first information corresponds to at least one configuration information in the first configuration information set, wherein the at least one configuration information includes the first configuration information; The transceiver module is also used to receive first indication information; The processing module is used to determine the first configuration information according to the first information and the first corresponding relationship, including: The processing module is used to determine a plurality of configuration information included in a second configuration information set according to the first information and the first corresponding relationship, wherein the first configuration information set includes the second configuration information set; The processing module is further configured to determine the first configuration information according to the first information, the first corresponding relationship, and the first indication information. The device according to any one of claims 13 to 16 is characterized in that the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS. The device according to any one of claims 13 to 17, wherein the first configuration information includes at least one of the following: Common timing advance TA parameters, satellite ephemeris, and TA compensation. A communication device, comprising: A transceiver module, configured to send a first correspondence relationship, wherein the first correspondence relationship is used to determine first configuration information, and the first configuration information is used for uplink communication; The transceiver module is also used to send first information, where the first information includes a first reference signal or a first transmission configuration indication TCI state index. The device according to claim 19, characterized in that The first correspondence relationship includes a correspondence relationship between multiple information in a first information set and multiple configuration information in a first configuration information set, the multiple information includes the first information, and the multiple configuration information includes the first configuration information. The device according to claim 20, characterized in that The first configuration information corresponds to at least one information in the first information set, and the at least one information includes the first information. The device according to claim 20, characterized in that the first information corresponds to at least one configuration information in the first configuration information set, and the at least one configuration information includes the first configuration information; The transceiver module is further used to send first indication information, where the first indication information is used to indicate the first configuration information included in the at least one configuration information. The device according to any one of claims 19 to 22 is characterized in that the first reference signal includes at least one of the following: a tracking reference signal TRS, a channel state information reference signal CSI-RS, or a demodulation reference signal DMRS. The device according to any one of claims 19 to 23 is characterized in that the first configuration information includes at least one of the following: parameters of a common timing advance TA, satellite ephemeris, and a TA compensation amount. A communication device, characterized in that the communication device comprises a module for executing the method according to any one of claims 1 to 6, or comprises a module for executing the method according to any one of claims 7 to 12. A communication device, characterized in that the communication device comprises a processor; the processor is configured to execute the method according to any one of claims 1 to 6, or to cause the communication device to execute the method according to any one of claims 7 to 12. A computer-readable storage medium, characterized in that the computer-readable storage medium includes instructions, and when the instructions are executed, the method according to any one of claims 1 to 6 is implemented, or the method according to any one of claims 7 to 12 is implemented. A computer program product, characterized in that the computer program product comprises instructions, and when the instructions are executed, the method according to any one of claims 1 to 6 is implemented, or the method according to any one of claims 7 to 12 is implemented. A communication system, characterized in that the communication system comprises the communication device as claimed in claim 13 and claim 19.