Communication method and apparatus

Abstract

The application provides a communication method and device, and relates to the technical field of communication. In the method, an access network device configures communication parameters for a first terminal with frequency domain resource groups as granularity, such as communication parameters of a first frequency domain resource group, and the communication parameters are applied to at least two frequency domain resources in the first frequency domain resource group, so that when the first terminal performs signal transmission on at least one frequency domain resource in the first frequency domain resource group, it is not necessary to respectively determine the communication parameters corresponding to each frequency domain resource, and the calculation overhead is reduced. Moreover, the communication parameters corresponding to the at least two frequency domain resources in the first frequency domain resource group can be indicated by the same information, so that the signaling overhead is reduced.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a communication method and apparatus. Background Technology

[0002] In a wireless communication system, access network equipment configures frequency domain resources for terminal equipment, and the terminal equipment communicates based on the frequency domain resources configured by the access network equipment.

[0003] When access network equipment configures communication parameters for terminal equipment, such as transmission configuration indicator (TCI) and timing advance (TA), it will configure the same or different communication parameters for each frequency domain resource. The number of configurations is large and the overhead is significant. Summary of the Invention

[0004] This application provides a communication method and apparatus that can reduce the overhead of configuring communication parameters.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] Firstly, a communication method is provided. This method can be executed by a first terminal, for example, by the first terminal itself, or by a module applied to the first terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the first terminal. For ease of description, the following description assumes the method is executed by the first terminal. The method includes: receiving first information, the first information indicating communication parameters of a first frequency domain resource group, the communication parameters being applied to at least two frequency domain resources in the first frequency domain resource group; and transmitting a signal on at least one frequency domain resource in the first frequency domain resource group according to the communication parameters.

[0007] Based on the communication method provided in the first aspect, the access network device configures communication parameters for the first terminal at the granularity of frequency domain resource groups, such as the communication parameters of the first frequency domain resource group. These communication parameters are applied to at least two frequency domain resources within the first frequency domain resource group. This eliminates the need to determine the communication parameters for each frequency domain resource separately when the first terminal transmits signals on at least one frequency domain resource within the first frequency domain resource group, thus reducing computational overhead. Furthermore, the communication parameters corresponding to at least two frequency domain resources within the first frequency domain resource group can be indicated by the same information (such as the first information), thereby simplifying the first information and reducing signaling overhead.

[0008] In one possible implementation, the frequency domain resources are either bandwidth parts (BWP) or carriers. That is, frequency domain resource groups can be divided at the granularity of BWPs or carriers, with the first frequency domain resource group including at least two BWPs or carriers. Compared to configuring communication parameters based on each frequency domain resource, configuring communication parameters for the first terminal at the granularity of frequency domain resource groups reduces overhead.

[0009] Optionally, the communication parameters include quasi-co-located parameters and / or timing parameters. The quasi-co-located parameters are used to determine the quasi-co-located (QCL) relationship between the antenna port of a signal and the antenna ports of one or two reference signals. For example, the quasi-co-located parameters can be TCI status parameters, or other parameters that can be used to determine the quasi-co-located relationship between signals; this is not limited. The first terminal can transmit or receive signals on frequency domain resources according to the quasi-co-located parameters of the first frequency domain resource group. The timing parameters are used to determine the transmission time or transmission time of the signal. For example, the timing parameter can be TA, which can be used to determine the time by which the first terminal transmits an uplink signal compared to the corresponding downlink signal or uplink signal. Of course, the timing parameter can be other parameters with the function of determining the transmission time of the signal; this is not limited. The first terminal can transmit signals on frequency domain resources according to the timing parameters of the first frequency domain resource group.

[0010] Thus, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same quasi-co-address parameters and / or timing parameters, the overhead of configuring quasi-co-address parameters and / or timing parameters, as well as the overhead of indication signaling, can be reduced.

[0011] Optionally, the quasi-co-address parameters may include at least one TCI state or TCI state group, and the timing parameters may include at least one TA value or TA group.

[0012] The number of TCI state groups can be one or more, and a TCI state group can include one or more TCI states. At least two frequency domain resources in the first frequency domain resource group have the same or shared TCI states or TCI state groups. The number of TA groups can be one or more, and a TA group can include one or more TA values ​​(or TA quantities). When a TA group includes multiple TA values, the access network device can further indicate the TA value corresponding to the current transmission semi-statically or dynamically. At least two frequency domain resources in the first frequency domain resource group have the same or shared TA values ​​or TA groups.

[0013] Thus, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same TCI state or TCI state group, it can be applied to scenarios where different first frequency domain resource groups within a frequency domain resource set correspond to different transmission reception points (TRPs). This means it can adapt to transmission scenarios with different TRPs, enabling flexible joint communication across multiple TRPs, reducing indication overhead, and improving communication performance. Furthermore, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same TA value or TA group, it can ensure that uplink signals from different terminals are aligned at the access network equipment, thereby avoiding interference between signals, improving communication performance, and reducing indication signaling overhead.

[0014] Optionally, the TCI state and the TA value have a first association relationship; the TCI state is determined based on the first association relationship and the TA value, or the TA value is determined based on the first association relationship and the TCI state. That is, the first terminal can determine the TA value corresponding to the TCI state through the TCI state corresponding to the first frequency domain resource group and the first association relationship, thus indirectly determining the TA value corresponding to the first frequency domain resource group. Alternatively, the first terminal can determine the TCI state corresponding to the TA value through the TA value corresponding to the first frequency domain resource group and the first association relationship, thus indirectly determining the TCI state corresponding to the first frequency domain resource group.

[0015] The first association relationship can be indicated by first information or other information, without limitation. The first association relationship can be the correspondence between the identifier (or index) of the TCI state and the TA value. Thus, the access network device determines the first association relationship between the TCI state and the TA value at the granularity of the frequency domain resource group. The first terminal can determine the TA value associated with the current TCI state based on the first association relationship and send a signal based on the TA value associated with the current TCI state. In this way, configuring the TA values ​​associated with different TCI states at the granularity of the frequency domain resource group can reduce configuration overhead and signaling overhead.

[0016] Optionally, the first association may also include the association between the first frequency domain resource group, the TCI state and the TA value, that is, any two items between the first frequency domain resource group, the TCI state and the TA value are mutually associated.

[0017] Optionally, the TCI state group and the TA group have a second association relationship; the TCI state group is determined based on the second association relationship and the TA group, or the TA group is determined based on the second association relationship and the TCI state group. That is, the first terminal can determine the TA group corresponding to the TCI state group through the TCI state group corresponding to the first frequency domain resource group and the second association relationship, thus indirectly determining the TA group corresponding to the first frequency domain resource group. Alternatively, the first terminal can determine the TCI state group corresponding to the TA group through the TA group corresponding to the first frequency domain resource group and the second association relationship, thus indirectly determining the TCI state group corresponding to the first frequency domain resource group.

[0018] The second association can be indicated by the first information or by other information, without limitation. The second association can be the correspondence between the identifier (or index) of a TCI state group and a TA group. Thus, the access network device determines the second association between the TCI state group and the TA group at the granularity of frequency domain resource groups. The first terminal can determine the TA group associated with the current TCI state group based on the second association and send a signal according to the TA value contained in the TA group associated with the TCI state group. In this way, configuring the TA groups associated with different TCI state groups at the granularity of frequency domain resource groups can reduce configuration and signaling overhead.

[0019] Optionally, the second association may also include the association between the first frequency domain resource group, the TCI state group and the TA group, that is, any two items between the first frequency domain resource group, the TCI state group and the TA group are mutually associated.

[0020] In one possible implementation, the first information further indicates the communication parameters of the second frequency domain resource group, which include the offset between the TA value corresponding to the second frequency domain resource group and the TA value corresponding to the first frequency domain resource group. Thus, the access network device indirectly indicates the TA value corresponding to the second frequency domain resource group to the first terminal using the offset between the TA values ​​of the second and first frequency domain resource groups, as well as the TA value of the first frequency domain resource group, thereby reducing signaling overhead.

[0021] In one possible implementation, the first information further indicates the frequency domain resources included in the first frequency domain resource group. For example, the first information may indicate at least one of the following for each frequency domain resource included in the first frequency domain resource group: identifier, location, or bandwidth size, etc. The communication parameters of the first frequency domain resource group and the information indicating the frequency domain resources included in the first frequency domain resource group can be carried in the same message / signaling, such as in different cells of the same message, or in different messages; there is no restriction on this. By indicating the frequency domain resources included in the first frequency domain resource group to the first terminal through the access network device, the first terminal and the access network device can align the first frequency domain resource group, facilitating the first terminal's use of the communication parameters of the first frequency domain resource group.

[0022] Secondly, a communication method is provided. This method can be executed by an access network device, for example, by the access network device itself, or by a module applied to the access network device (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the access network device. This method can also be executed by a second terminal, for example, by the second terminal itself, or by a module applied to the second terminal (e.g., a processor, chip, or chip system), or by a logical node, logical module, or software capable of implementing all or part of the functions of the second terminal. For ease of description, the following description uses the execution of the method by an access network device as an example. The method includes: determining communication parameters for a first frequency domain resource group, the communication parameters being applied to at least two frequency domain resources in the first frequency domain resource group; and sending first information, the first information indicating the communication parameters.

[0023] In one possible implementation, the frequency domain resources are: a portion of the bandwidth or a carrier.

[0024] In one possible implementation, the communication method may further include: transmitting a signal on at least one frequency domain resource in a first frequency domain resource group, wherein the quasi-co-address parameters and / or timing parameters of the signal are determined based on communication parameters; wherein the quasi-co-address parameters are used to determine the quasi-co-address QCL relationship between the antenna port of the signal and the antenna ports of one or two reference signals; and the timing parameters are used to determine the transmission time or transmission time of the signal.

[0025] Optionally, the quasi-co-address parameters include at least one Transmission Configuration Indicator (TCI) state or TCI state group, and the timing parameters include at least one Timing Advance (TA) value or TA group.

[0026] Optionally, the TCI state and the TA value have a first association relationship; the TCI state is determined based on the first association relationship and the TA value, or the TA value is determined based on the first association relationship and the TCI state.

[0027] In one possible implementation, the TCI state group and the TA group have a second association relationship; the TCI state group is determined based on the second association relationship and the TA group, or the TA group is determined based on the second association relationship and the TCI state group.

[0028] Furthermore, the technical effects of the method provided in the second aspect can be referred to the technical effects of the corresponding features in the method provided in the first aspect, and will not be elaborated upon further.

[0029] Thirdly, a communication device is provided. This communication device is used to execute the communication method described in any one of the implementations of the first to second aspects.

[0030] It should be understood that the communication apparatus described in the third aspect includes modules, units, or means that implement the communication methods described in any of the first to second aspects. These modules, units, or means can be implemented in hardware, software, or by hardware executing corresponding software. The hardware or software includes one or more modules or units for performing the functions involved in the aforementioned communication methods.

[0031] Fourthly, a communication device is provided. The communication device includes a processor configured to execute the communication method described in any of the possible implementations of the first to second aspects.

[0032] In one possible implementation, the communication device described in the fourth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the fourth aspect and other communication devices.

[0033] In one possible implementation, the communication device described in the fourth aspect may further include a memory. This memory may be integrated with the processor or disposed separately. The memory may be used to store computer programs (or code instructions or program instructions) and / or data related to the communication method described in any of the first to second aspects.

[0034] Fifthly, a communication device is provided. The communication device includes a processor coupled to a memory, the processor executing a computer program stored in the memory, such that the communication device performs the communication method described in any possible implementation of the first to second aspects.

[0035] In one possible implementation, the communication device described in the fifth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the fifth aspect and other communication devices.

[0036] A sixth aspect provides a communication device, comprising: a processor and a memory; the memory being used to store a computer program, which, when executed by the processor, causes the communication device to perform the communication method described in any one of the first to second aspects.

[0037] In one possible implementation, the communication device described in the sixth aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the sixth aspect and other communication devices.

[0038] A seventh aspect provides a communication device comprising: a processor; the processor being configured to be coupled to a memory, and after reading a computer program from the memory, to execute a communication method as described in any one of the implementations of the first to second aspects according to the computer program.

[0039] In one possible implementation, the communication device described in the seventh aspect may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver can be used for communication between the communication device described in the seventh aspect and other communication devices.

[0040] In this application, the communication device described in any one of aspects three through seven can be a terminal device, a communication module, a circuit with communication function, a chip, a chip system, or other components or assemblies. The communication module, or the circuit, chip, chip system, or other components or assemblies with communication function can be applied in a terminal device. Alternatively, the communication device can be a network device (such as a radio access network (RAN) node), a communication module, a circuit, chip, chip system, or other components or assemblies with communication function. The communication module, the circuit, chip, chip system, or other components or assemblies with communication function can be applied in a network device.

[0041] Eighthly, a communication system is provided. The communication system includes one or more terminal devices and one or more network devices.

[0042] A ninth aspect provides a computer-readable storage medium comprising: a computer program or instructions; which, when executed on a computer, causes the computer to perform the communication method described in any possible implementation of the first to second aspects.

[0043] In a tenth aspect, a computer program product is provided, comprising a computer program or instructions that, when executed on a computer, cause the computer to perform the communication method described in any possible implementation of the first to second aspects.

[0044] Furthermore, the technical effects of the third to tenth aspects mentioned above can be referred to with reference to the technical effects of the communication methods described in the first to second aspects, and will not be repeated here. Attached Figure Description

[0045] Figure 1 This application provides a schematic diagram of the architecture of a communication system.

[0046] Figure 2 A schematic diagram of the frequency domain resource set provided in an embodiment of this application;

[0047] Figure 3 A schematic diagram of a TA provided in an embodiment of this application;

[0048] Figure 4 A flowchart illustrating a communication method provided in an embodiment of this application;

[0049] Figure 5 A schematic diagram illustrating the relationship between the first frequency domain resource group and the TCI state provided in this application embodiment;

[0050] Figure 6 A schematic diagram illustrating the relationship between the first frequency domain resource group and the TCI state group provided in this application embodiment;

[0051] Figure 7 This is a schematic diagram illustrating the relationship between the first frequency domain resource group and the TA value provided in an embodiment of this application.

[0052] Figure 8 This is a schematic diagram illustrating the relationship between the first frequency domain resource group and the TA group provided in an embodiment of this application.

[0053] Figure 9 A schematic diagram illustrating the relationship between TCI status and TA value provided in this application embodiment;

[0054] Figure 10 This is a schematic diagram illustrating the relationship between the TCI status group and the TA group provided in an embodiment of this application.

[0055] Figure 11 Schematic diagram of the communication device provided in the embodiments of this application Figure 1 ;

[0056] Figure 12 Schematic diagram of the communication device provided in the embodiments of this application Figure 2 . Detailed Implementation

[0057] To facilitate understanding of the embodiments of this application, let's first take... Figure 1 The communication system illustrated herein is used as an example to illustrate a communication system applicable to embodiments of this application. For example, Figure 1This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application.

[0058] like Figure 1 As shown, the communication system includes a radio access network (RAN) 100, wherein the RAN 100 includes at least one RAN node (e.g., Figure 1 110a and 110b, collectively referred to as 110, may also include at least one terminal (such as...). Figure 1 RAN100, denoted as RAN100, comprises RAN nodes 120a-120j, collectively referred to as RAN120. RAN100 may also include other RAN nodes, such as wireless relay equipment and / or wireless backhaul equipment. Figure 1 (Not shown in the image). Terminal 120 is wirelessly connected to RAN node 110. Terminals and RAN nodes can be interconnected via wired or wireless means. The communication system may also include a core network 200. RAN node 110 is connected to core network 200 wirelessly or via wired means. The core network equipment in core network 200 and RAN node 110 in RAN 100 can be independent physical devices, or they can be the same physical device integrating the logical functions of core network equipment and RAN nodes. The communication system may also include Internet 300.

[0059] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, or a future radio access system as defined in the 3rd generation partnership project (3GPP), or it can be a WiFi system. RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN).

[0060] RAN nodes, also known as radio access network devices, RAN entities, or access nodes, are used to help terminals access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a future mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system. RAN nodes can also be macro base stations (such as...) Figure 1 110a in the text), can also be a micro base station or an indoor station (such as... Figure 1 110b in the middle can also be a relay node or a donor node.

[0061] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes or integrated into the same RAN node, such as within a baseband unit (BBU). The RU can be included in radio frequency equipment, such as in a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane. In different systems, RAN nodes may have different names. For example, in an O-RAN system, CU can be called an open CU (O-CU), DU can be called an open DU (O-DU), and RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or equipment form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0062] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0063] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0064] The roles of base stations and terminals can be relative, for example, Figure 1 The helicopter or drone 120i can be configured as a mobile base station. For terminals 120j accessing the wireless access network 100 via 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol; in this case, 120i is also a base station relative to 110a. Therefore, both base stations and terminals can be collectively referred to as communication devices. Figure 1 The 110a and 110b in the text can be referred to as communication devices with base station functions. Figure 1 The 120a-120j in the text can be referred to as communication devices with terminal functions.

[0065] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0066] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0067] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel. To communicate with the base station, the terminal needs to establish a radio connection on a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the terminal's serving cell. When the terminal communicates with this serving cell, it is also susceptible to interference from signals from neighboring cells.

[0068] It is understood that in the embodiments of this application, the physical downlink shared channel (PDSCH), physical downlink control channel (PDCCH), physical uplink shared channel (PUSCH), and physical uplink control channel (PUCCH) are only examples of downlink data channel, downlink control channel, uplink data channel, and uplink control channel, respectively. In different systems and different scenarios, the data channel and control channel may have different names, and the embodiments of this application do not limit this.

[0069] The network architecture and business scenarios described in the embodiments of this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided in the embodiments of this application. As those skilled in the art will know, with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0070] The technical terms and related technical solutions in this application will be described below with reference to the accompanying drawings.

[0071] 1. Parameter set (numerology):

[0072] 5G NR introduces the concept of a parameter set, which includes sub-carrier spacing (SCS) and corresponding parameters such as symbol length and cyclic prefix (CP) length. Because there is a mapping relationship between SCS and symbol length / CP length, SCS is often used instead of parameter set in some literature.

[0073] For example, the parameters involved in the parameter set are shown in Table 1.

[0074] Table 1

[0075] μ SCS CP Supported frequency range (FR) 0 15 Normal CP FR1 1 30 Normal CP FR1 2 60 Normal CP, Extended CP FR1, FR2 3 120 Normal CP FR2 4 240 Normal CP FR2

[0076] In Table 1, μ represents the subcarrier spacing index, or μ represents the parameter set, CP length includes the normal CP length and the extended CP length, and FR represents the frequency range (FR).

[0077] 2. Frequency domain resource set:

[0078] A frequency domain resource set refers to a collection of one or more frequency domain resources. A frequency domain resource set can support communication of a cell on frequency domain resources in at least one frequency band. That is, a frequency domain resource set includes one or more carriers within the same frequency band, or multiple carriers within multiple frequency bands. A frequency domain resource can include one or more component carriers (CCs), in which case a frequency domain resource set can include one or more carriers. It is understood that a frequency domain resource set can also be called a uni-carrier, or other possible names, which will not be elaborated further.

[0079] Optionally, frequency domain resources within the same frequency domain resource set are equivalent to a logical carrier. For example, frequency domain resources within the same frequency domain resource set can share a radio frequency channel, and / or the signals carried by frequency domain resources within the same frequency domain resource set can be subjected to FFT operations together. Figure 2 As shown, the access network device can be configured with three frequency domain resource sets, such as frequency domain resource set 0, frequency domain resource set 1, and frequency domain resource set 2. Frequency domain resource set 0 can include multiple frequency domain resources, frequency domain resource set 1 can include multiple frequency domain resources, and frequency domain resource set 2 can include multiple frequency domain resources. Frequency domain resource set 0 is equivalent to one logical carrier, frequency domain resource set 1 is equivalent to one logical carrier, and frequency domain resource set 2 is equivalent to one logical carrier. It should be understood that some frequency domain resources in a frequency domain resource set can also be equivalent to one logical carrier.

[0080] Optionally, frequency domain resource sets can be divided according to the frequency band or frequency range in which the frequency domain resources are located. Taking CCs as an example, multiple CCs within frequency range 1 (FR1) form a frequency domain resource set, multiple CCs within frequency range 2 (FR2) form a frequency domain resource set, and multiple CCs within frequency range 3 (FR3) form a frequency domain resource set. The frequency range of FR1 is 450 MHz to 6000 MHz. FR1 can also be referred to as the 6 GHz (Sub-6 GHz) band. The frequency range of FR2 is 24250 MHz to 52600 MHz. FR2 is often referred to as the millimeter wave (mmWave) band. The frequency range of FR3 is 6000 MHz to 24250 MHz. FR3 is the band between FR1 and FR2, and is often referred to as the 24 GHz (Sub-24 GHz) band. It is understood that the frequency domain resource allocation method described here is only for illustrative purposes. In actual implementation, the same frequency domain resource set may also include CCs from different frequency ranges, or the same frequency domain resource set may include some CCs from the same frequency range. It is understood that each frequency range may include at least one frequency band.

[0081] For any two frequency domain resources in the same frequency domain resource set, they can be co-located (i.e. used for communication between the same access network device and terminal device) or non-co-located (i.e. used for communication between different access network devices and terminal devices).

[0082] 3. Carrier aggregation (CA):

[0083] Carrier aggregation provides greater bandwidth to a single terminal device by aggregating multiple carrier aggregation (CCs). This allows the terminal device to enjoy bandwidth equal to the total bandwidth of all CCs, thereby increasing peak rates.

[0084] CA can be applied to 3CC aggregation scenarios. In this case, a terminal device is served by three carriers simultaneously, one of which is the primary component carrier (PCC), and the other two are secondary component carriers (SCCs). The cell where the PCC is located is called the primary cell (PCell), and the cell where the SCC is located is called the secondary cell (SCell).

[0085] Based on whether the aggregated multiple CCs belong to the same frequency band and are continuous in the frequency domain, CA can be divided into the following categories: (1) Intra-band contiguous CA, where multiple CCs belong to the same frequency band and are continuous in the frequency domain. (2) Intra-band non-contiguous CA, where multiple CCs belong to the same frequency band but are not continuous in the frequency domain. (3) Inter-band CA, where multiple CCs belong to different frequency bands. In this case, the multiple CCs are usually not continuous in the frequency domain.

[0086] 4. TCI Status:

[0087] The UE can be configured with a list of M TCI states via the higher-layer parameter PDSCH configuration (PDSCH-Config) to decode the PDSCH based on the detected PDCCH containing downlink control information (DCI) for the UE and a given serving cell, where M is an integer greater than 1 and depends on the UE's capabilities. Each TCI state contains parameters for configuring quasi-co-location relationships between the antenna ports of one or two reference signals and the antenna ports of the PDSCH demodulation reference signal (DMRS), the DMRS antenna ports of the PDCCH, or the CSI-RS antenna ports of the CSI-RS resources(s).

[0088] 5. TA:

[0089] In NR, TA (Transmission Acquisition) is a key technology for ensuring synchronization of multiple UEs during uplink (UL) transmission. The main purpose of TA is to ensure that uplink signals from different UEs are aligned at the base station (gNB), thereby avoiding interference between signals and improving the overall system performance.

[0090] TA refers to the time that the system frame for sending uplink data by the UE is earlier than the corresponding downlink frame. Figure 3 This is a schematic diagram of a TA provided in an embodiment of this application. For example... Figure 3 As shown, the transmission time of uplink frame i is TA earlier than the transmission time of downlink frame i.

[0091] The TA (Time Array) configuration ensures that uplink signals transmitted by the UE arrive at the base station within a specific time window, avoiding signal interference that might occur if uplink signals from different UEs arrive at the base station at different times. This improves signal reception quality and overall system performance. The time unit in this application can be one or more of a radio frame, subframe, time slot, sub-time slot, or symbol, without limitation.

[0092] The base station can determine the TA value (or TA quantity, which is an equivalent description of TA value and TA quantity in this embodiment) by measuring the physical random access channel (PRACH) sent by the UE, and notify the UE through the timing advance command (TAC) in the random access response (RAR).

[0093] In wireless communication systems, access network equipment can configure carriers for communication on terminal equipment, which can then communicate on the frequency domain resources configured by the access network equipment. In the above-mentioned frequency domain resource configuration scheme, the communication parameters of each carrier are configured differently, such as the TCI and TA parameters, resulting in a large number of parameters and significant overhead.

[0094] To address the aforementioned technical problems, this application provides a communication method. In this method, an access network device configures communication parameters for a first terminal at the granularity of frequency domain resource groups, such as communication parameters for a first frequency domain resource group. These communication parameters are applied to at least two frequency domain resources within the first frequency domain resource group. This eliminates the need to determine the communication parameters for each frequency domain resource separately when the first terminal transmits signals on at least one frequency domain resource within the first frequency domain resource group, thus reducing computational overhead. Furthermore, the communication parameters corresponding to at least two frequency domain resources in the first frequency domain resource group can be indicated by the same information, thereby reducing signaling overhead.

[0095] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0096] It should be noted that the communication method provided in the embodiments of this application can be applied to... Figure 1 For any two devices shown, such as between a terminal device and a network device, between two terminal devices, or between two network devices, the specific implementation can be referred to the following method embodiments, which will not be repeated here.

[0097] It should be noted that the solutions in the embodiments of this application can also be applied to other communication systems, and the corresponding names can be replaced by the names of the corresponding functions in other communication systems.

[0098] The following will combine Figure 4 The communication method provided in the embodiments of this application will be described in detail.

[0099] For example, Figure 4 This is a flowchart illustrating a communication method provided in an embodiment of this application. This communication method can be applied to a first communication device (such as...). Figure 1 The terminal equipment shown) and the second communication device (such as Figure 1 Communication between terminal devices or access network devices (as shown). For ease of understanding, the following embodiments will use the first communication device as the first terminal and the second communication device as the access network device as an example.

[0100] like Figure 4 As shown, the communication method includes:

[0101] S401, the access network device determines the communication parameters of the first frequency domain resource group.

[0102] The first frequency domain resource group belongs to the first frequency domain resource set. The access network device can determine the communication parameters of multiple frequency domain resource groups in the first frequency domain resource set and send the communication parameters of multiple frequency domain resource groups to the first terminal. Optionally, the first frequency domain resource set corresponds to a cell. Here, "cell" is an exemplary description and can be replaced with a serving cell, serving area, waveband, or any description of an area used by the network to provide services to terminal devices. For ease of explanation, this application embodiment uses the communication parameters of the first frequency domain resource group in the first frequency domain resource set as an example.

[0103] The first frequency domain resource group includes at least two frequency domain resources, and the communication parameters are applied to at least two frequency domain resources in the first frequency domain resource group. That is, at least two frequency domain resources in the first frequency domain resource group share the communication parameters, or in other words, the frequency domain resources in the first frequency domain resource group correspond to the same communication parameters. The communication parameters can be used by the first terminal to transmit or receive signals on at least two frequency domain resources in the first frequency domain resource group.

[0104] The number of communication parameters can be one or more, and there is no limit to the number. Optionally, the first information may also include an identifier / index corresponding to each of the multiple communication parameters. For details on the communication parameters, please refer to the description below; they will not be elaborated upon here.

[0105] In this embodiment, the communication parameters can be replaced with other possible expressions, such as communication information, communication control parameters, communication control parameter groups, etc., and there are no restrictions on this.

[0106] S402, the access network device sends the first information, and correspondingly, the first terminal receives the first information.

[0107] The first information indicates the communication parameters of the first frequency domain resource group. The first information can be a broadcast message or a dedicated message from the first terminal.

[0108] Optionally, the first information can be carried in system information (SI), such as in system information block 1 (SIB1). It is understood that carrying the first information in SIB1 is for illustrative purposes; in actual implementation, the first information can also be carried in other system information blocks within the system information, or in other possible messages outside of the system information, which will not be elaborated further.

[0109] Optionally, the first information can be carried in higher-level signaling, such as RRC signaling or MAC control element (medium access control-control element, MAC CE) signaling.

[0110] Alternatively, the first information can be carried in physical layer signaling, such as DCI.

[0111] S403, the first terminal transmits signals on at least one frequency domain resource in the first frequency domain resource group according to the communication parameters.

[0112] The first terminal determines that the frequency domain resource belongs to the first frequency domain resource group based on the frequency domain resource of the signal transmission, and sends or receives signals on the frequency domain resource according to the communication parameters of the first frequency domain resource group.

[0113] The signals may include at least one of the following: PDCCH, PDSCH, channel state information-reference signal (CSI-RS), PUSCH, PUCCH, PRACH, sounding reference signal (SRS), DMRS, etc.

[0114] In this way, the access network device configures communication parameters for the first terminal at the granularity of frequency domain resource groups, such as the communication parameters of the first frequency domain resource group. These communication parameters are applied to at least two frequency domain resources within the first frequency domain resource group. This eliminates the need for the first terminal to determine the communication parameters for each frequency domain resource separately when transmitting signals on at least one frequency domain resource within the first frequency domain resource group, thus reducing computational overhead. Furthermore, the communication parameters corresponding to at least two frequency domain resources within the first frequency domain resource group can be indicated by the same information (such as the first information), thereby simplifying the first information and reducing signaling overhead.

[0115] The overall flow of the communication method provided in the embodiments of this application has been described above. For ease of understanding, S401 and S402 are described in detail below.

[0116] First, we will introduce the granularity of frequency domain resource group division in the frequency domain resource set.

[0117] Optionally, frequency domain resources can be: partial bandwidth or carrier. That is, frequency domain resource groups can be divided at the granularity of partial bandwidth or carrier, and the first frequency domain resource group includes at least two partial bandwidths or carriers. Of course, frequency domain resource groups can also be divided at the granularity of other frequency domain resources, such as resource block (RB) groups, RB sets, etc. This application does not impose any restrictions on this.

[0118] It should be understood that frequency domain resources can be continuous or non-continuous, and there are no specific restrictions.

[0119] For example, the first frequency domain resource group is a frequency domain resource group used for access control or a frequency domain resource group used for data transmission.

[0120] The frequency domain resources in the frequency domain resource group used for access control are mainly used to implement connection control functions, or in other words, to carry messages for connection control, such as control plane messages / signaling. The frequency domain resource group used for access control may include frequency domain resources used for access control (denoted as the first frequency domain resource). For example, the messages for connection control carried by the first frequency domain resource may include at least one of the following: messages / signaling for camping, paging messages / signaling, wake-up messages / signaling, such as low-power wake-up signal (LP-WUS) or uplink wake-up signal, or other related messages / signaling, which will not be elaborated further. In some examples, messages / signaling for camping may include synchronization messages, random access requests, or random access preambles. When the first frequency domain resource is used for access control of the first terminal, the first frequency domain resource can also be understood as a frequency domain resource used to meet the coverage performance requirements of the first terminal.

[0121] When the first frequency domain resource is used for access control of the first terminal, optionally, the first frequency domain resource may include frequency domain resources used to carry downlink signals in the access control process (also referred to as downlink anchor frequency domain resources), and / or frequency domain resources used to carry uplink signals in the access control process (also referred to as uplink anchor frequency domain resources). As an example, when the first frequency domain resource is a frequency division multiplexing (FDM) frequency domain resource, i.e., when uplink and downlink use frequency division, the first frequency domain resource may include uplink anchor frequency domain resources and / or downlink anchor frequency domain resources. It is understood that in time division multiplexing (TDM), i.e., when uplink and downlink use time division, the first frequency domain resource may also include uplink anchor frequency domain resources and downlink anchor frequency domain resources. For example, the functions of the uplink anchor frequency domain resources and downlink anchor frequency domain resources can be implemented through resources at different frequency domain positions (i.e., different frequency domain resources) on the first frequency domain resource, and / or resources at different time domain positions (i.e., different time domain resources). The first frequency domain resource can be one or more, without specific limitations.

[0122] The frequency domain resource group used for data transmission may include frequency domain resources used for data transmission (denoted as the second frequency domain resource), which are used to carry service data.

[0123] The second frequency domain resource may include frequency domain resources for uplink transmission and / or frequency domain resources for downlink transmission. As an example, when the second frequency domain resource is an FDM frequency domain resource, it may include frequency domain resources for uplink transmission and / or frequency domain resources for downlink transmission. It is understood that in TDM, the second frequency domain resource may also include frequency domain resources for uplink transmission and frequency domain resources for downlink transmission. For example, the frequency domain resources for uplink transmission and the frequency domain resources for downlink transmission may be resources at different time domain locations on the same frequency domain resource (i.e., different time domain resources), and / or resources at different frequency domain locations (i.e., different frequency domain resources).

[0124] If the first frequency domain resource is used to meet the coverage performance requirements of the terminal device, and the second frequency domain resource is used to carry the data channel, then in this case, the first frequency domain resource can also be called the anchor frequency domain resource or the coverage frequency domain resource. The second frequency domain resource can be called the capacity frequency domain resource.

[0125] In some possible implementations, the first frequency domain resource group may not distinguish between the first frequency domain resources (i.e., anchor frequency domain resources) and the second frequency domain resources (i.e., capacity frequency domain resources). Alternatively, the first frequency domain resource group may include both the first frequency domain resources (i.e., anchor frequency domain resources) and the second frequency domain resources (i.e., capacity frequency domain resources), or the first frequency domain resource group may include only the second frequency domain resources, i.e., capacity frequency domain resources.

[0126] For a terminal device (such as the first terminal), the anchor frequency domain resources and capacity frequency domain resources can come from different access network devices.

[0127] Optionally, anchor frequency domain resources can also be called anchor CC, or coverage CC, or other names are not limited. Capacity frequency domain resources can also be called capacity CC, or other names are not limited.

[0128] Secondly, the rules for dividing frequency domain resource groups are introduced.

[0129] Optionally, a frequency domain resource group corresponds to a frequency band. For example, the first frequency domain resource set includes a first frequency domain resource group, a second frequency domain resource group, and a third frequency domain resource group. The first frequency domain resource group, the second frequency domain resource group, and the third frequency domain resource group correspond to different frequency bands.

[0130] Taking frequency domain resources as CC as an example, CCs in frequency bands less than 1 GHz (sub 1 GHz) correspond to CC group #1 (i.e., the first frequency domain resource group), CCs in frequency bands from 1 GHz to less than 6 GHz (sub 6 GHz) correspond to CC group #2, and CCs in frequency bands from 24 GHz to 28 GHz correspond to CC group #3. Taking frequency domain resources as BWP as an example, the BWPs in the FR1 band correspond to BWP group #1 (i.e., the first frequency domain resource group), the BWPs in the FR2 band correspond to BWP group #2, and the BWPs in the FR3 band correspond to BWP group #3. The frequency range of FR1 is 450 MHz to 6000 MHz. FR1 can also be called the 6 gigahertz (sub-6 gigahertz, sub-6 GHz) band. The frequency range of FR2 is 24250 MHz to 52600 MHz. FR2 is commonly referred to as the millimeter wave (mmWave) band. The frequency range of FR3 is 6000MHz to 24250MHz. FR3 is the frequency band between FR1 and FR2, and is often referred to as the 24GHz (Sub-24 GHz) band.

[0131] The first frequency domain resource group can be determined according to predefined rules. In other words, multiple frequency domain resource groups in the first frequency domain resource set can be determined according to predefined rules without instruction, thus saving signaling overhead. For example, multiple frequency domain resource groups in the first frequency domain resource set can be predefined based on different frequency bands / frequency points. The first frequency domain resource set can be pre-configured in the first terminal and access network equipment, such as through system information. Each frequency domain resource set can be configured through a corresponding system information, or multiple frequency domain resource sets can be configured through the same system information; there are no specific restrictions. For two frequency domain resources in the first frequency domain resource set, they can be co-located (i.e., used for communication between the same access network equipment and the terminal equipment) or non-co-located (i.e., used for communication between different access network equipment and the terminal equipment).

[0132] In the embodiments of this application, "preset", "predefined", or "preconfigured" can be implemented by pre-storing the corresponding code, table or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), or by being pre-defined in the protocol. This application does not limit the specific implementation method.

[0133] The first frequency domain resource group can also be configured by the access network equipment, which then sends the configuration information of the first frequency domain resource group to the first terminal to achieve dynamic configuration. The grouping method can be relatively flexible. For example, the first information may also indicate the frequency domain resources included in the first frequency domain resource group. For instance, the first information may indicate at least one of the following for each frequency domain resource included in the first frequency domain resource group: identifier, location, or bandwidth size. The communication parameters of the first frequency domain resource group and the information indicating the frequency domain resources included in the first frequency domain resource group can be carried in the same message / signaling, such as in different cells of the same message, or in different messages; there are no restrictions on this.

[0134] In the above embodiments, only the first frequency domain resource group is used as an example for illustration. In actual implementation, the access network device in the communication system can configure M frequency domain resource groups for the first terminal and send first information. The first information is used to determine the communication parameters of each frequency domain resource group in the M frequency domain resource groups. M is an integer greater than or equal to 1. At this time, when M=1, the M frequency domain resource groups are equivalent to the aforementioned first frequency domain resource group, and the corresponding communication parameters in each of the M frequency domain resource groups are equivalent to the communication parameters of the first frequency domain resource group. When M is greater than 1, the aforementioned first frequency domain resource group is one of the M frequency domain resource groups. Each frequency domain resource group in the M frequency domain resource groups can include at least two frequency domain resources, or, in addition to the first frequency domain resource group, there can also be a frequency domain resource group in the M frequency domain resource groups that includes one frequency domain resource. The implementation of each of the M frequency domain resource groups can be referred to the relevant introduction of the first frequency domain resource group. The implementation of the communication parameters of each of the M frequency domain resource groups can also be referred to the relevant introduction of the communication parameters of the first frequency domain resource group, and will not be elaborated here.

[0135] The communication parameters are described in detail below.

[0136] In one possible implementation, the communication parameters include quasi-co-address parameters and / or timing parameters. The quasi-co-address parameters are used to determine the QCL relationship between the antenna port of a signal and the antenna ports of one or two reference signals. These quasi-co-address parameters can be TCI state parameters, or other parameters that can be used to determine the quasi-co-address relationship between signals; this is not limited. The first terminal can transmit or receive signals on frequency domain resources according to the quasi-co-address parameters of the first frequency domain resource group.

[0137] Timing parameters are used to determine the transmission or transmission time of a signal. For example, a timing parameter could be a timing pair (TA), which determines the time by which the first terminal transmits an uplink signal compared to the corresponding downlink or uplink signal. Of course, timing parameters can be other parameters with the function of determining the transmission or transmission time of a signal; there are no restrictions on this. The first terminal can transmit signals on frequency domain resources according to the timing parameters of the first frequency domain resource group.

[0138] Optionally, TA refers to the time that the system frame transmitting uplink data by the UE is ahead of the corresponding reference frame. The reference frame can be a downlink frame, an uplink frame, or a frame from another communication link. This application does not limit this.

[0139] Thus, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same quasi-co-address parameters and / or timing parameters, the overhead of configuring quasi-co-address parameters and / or timing parameters, as well as the overhead of indication signaling, can be reduced.

[0140] Optionally, the quasi-co-address parameters may include at least one TCI state or TCI state group, and the timing parameters may include at least one TA value or TA group.

[0141] The number of TCI state groups can be one or more, and a TCI state group can include one or more TCI states. At least two frequency domain resources in the first frequency domain resource group have the same or shared TCI states or TCI state groups.

[0142] It is understood that the first frequency domain resource group is associated with at least one TCI state or TCI state group, such that the identifier (or index) of the first frequency domain resource group corresponds to the identifier (or index) of at least one TCI state, or the identifier (or index) of the first frequency domain resource group corresponds to the identifier (or index) of at least one TCI state group. The first terminal can determine that the frequency domain resource belongs to the first frequency domain resource group based on the frequency domain resource of the signal transmission, and transmit or receive signals on the frequency domain resource according to at least one TCI state or at least one TCI state group corresponding to the first frequency domain resource group.

[0143] Furthermore, different frequency domain resource groups in the first frequency domain resource set can correspond to different TCI states or TCI state groups.

[0144] For example, such as Figure 5 As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. n TCI states are configured for CC group #0, specifically including TCI state #0, TCI state #1, ..., TCI state #n-1. m TCI states are configured for CC group #1, specifically including TCI state #n, TCI state #n+1, ..., TCI state #n+m-1. Here, n and m are integers greater than or equal to 1. The access network device can indicate the n TCI states corresponding to CC group #0 and the m TCI states corresponding to CC group #1 to the first terminal.

[0145] For example, such as Figure 6As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. TCI state group #0 is configured for CC group #0, specifically including TCI state #0, TCI state #1, ..., TCI state #n-1. TCI state group #1 is configured for CC group #1, specifically including TCI state #n, TCI state #n+1, ..., TCI state #n+m-1. Here, n and m are integers greater than or equal to 1. The access network device can indicate the TCI state group #0 corresponding to CC group #0 and the TCI state group #1 corresponding to CC group #1 to the first terminal.

[0146] The identifiers of TCI states in multiple TCI state groups can be jointly numbered or independently numbered.

[0147] Optionally, the identifier of the TCI status group can be simply referred to as the TCI status group identifier, the identifier of the TCI group, or the TCI group identifier. The identifier of the TCI status can be simply referred to as the TCI status identifier, the identifier of the TCI, or the TCI identifier.

[0148] For example, TCI state group 1 includes TCI state identifier 0 (TCI state #0), TCI state identifier 1 (TCI state #1), ..., TCI state identifier n-1 (TCI state #n-1), and TCI state group 2 includes TCI state identifier n (TCI state #n) and TCI state identifier n+1 (TCI state #n+1) ..., TCI state identifier n+m-1 (TCI state #n+m-1).

[0149] For example, TCI state group 1 includes TCI state identifier 0 (TCI state #0), TCI state identifier 1 (TCI state #1), ..., TCI state identifier n-1 (TCI state #n-1), and TCI state group 2 includes TCI state identifier 0 (TCI state #n), TCI state identifier 1 (TCI state #n+1), ..., TCI state identifier m (TCI state #n+m-1).

[0150] If the TCI status identifier is a combined number, the terminal device can determine the TCI status identifier and thus determine the TCI status. If the TCI status identifier is an independent number, the terminal device can determine the TCI status group identifier and the TCI status identifier and thus determine the TCI status.

[0151] There can be one or more TA groups, and a TA group can include one or more TA values ​​(or TA quantities). When a TA group includes multiple TA values, the access network device can further indicate the TA value corresponding to the current transmission semi-statically or dynamically. At least two frequency domain resources in the first frequency domain resource group have the same or shared TA values ​​or TA groups.

[0152] Furthermore, different frequency domain resource groups in the first frequency domain resource set can correspond to different TA values ​​or TA groups.

[0153] For example, such as Figure 7 As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. TA value #0 is configured for CC group #0. TA value #1 is configured for CC group #1. The access network device can indicate the TA value #0 corresponding to CC group #0 and the TA value #1 corresponding to CC group #1 to the first terminal. Of course, multiple TA values ​​can be configured for each CC group. Figure 7 (Not shown in the image), so we will not elaborate further.

[0154] For example, such as Figure 8 As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. TA group #0 is configured for CC group #0, specifically including TA value #0 and TA value #1. TA group #1 is configured for CC group #1, specifically including TA value #2 and TA value #3. The access network device can indicate to the first terminal the TA group #0 corresponding to CC group #0 and the TA group #1 corresponding to CC group #1. Furthermore, when transmitting on a CC in CC group #0, the access network device can semi-statically or dynamically indicate to the first terminal the TA value #0 corresponding to the current transmission. When transmitting on a CC in CC group #1, the access network device can semi-statically or dynamically indicate to the first terminal the TA value #2 corresponding to the current transmission.

[0155] Thus, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same TCI state or TCI state group, it can be applied to scenarios where different first frequency domain resource groups correspond to different TRPs within a frequency domain resource set. This means it can adapt to transmission scenarios with different TRPs, enabling flexible multi-TRP joint communication, reducing indication overhead, and improving communication performance. Furthermore, by having at least two frequency domain resources in the first frequency domain resource group correspond to the same TA value or TA group, it can ensure that uplink signals from different terminals are aligned at the access network equipment, thereby avoiding interference between signals, improving communication performance, and reducing indication signaling overhead.

[0156] In one possible implementation, the first information is further used to indicate the communication parameters of the second frequency domain resource group, which include the offset between the TA value corresponding to the second frequency domain resource group and the TA value corresponding to the first frequency domain resource group.

[0157] In the embodiments of this application, "for indicating" can include both direct and indirect indication. The information indicated by one piece of information is called the information to be indicated. In specific implementations, there are many ways to indicate the information to be indicated, such as, but not limited to, directly indicating the information to be indicated, such as the information to be indicated itself or its index. It can also indirectly indicate the information to be indicated by indicating other information, where there is a relationship between the other information and the information to be indicated. It can also indicate only a part of the information to be indicated, while the other parts are known or pre-agreed upon. Furthermore, the specific indication method can be any existing indication method, such as, but not limited to, the above-mentioned indication methods and their various combinations.

[0158] The information to be indicated can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device. This configuration information can include, for example, but not limited to, higher-layer signaling and / or physical-layer signaling. For example, higher-layer signaling can include RRC signaling or MAC layer signaling. This configuration information can include, for example, but not limited to, one or a combination of at least two of higher-layer and physical-layer signaling. MAC layer signaling includes, for example, MAC CE; physical (PHY) layer signaling includes, for example, DCI.

[0159] The second frequency domain resource group and the first frequency domain resource group belong to the first frequency domain resource set. The implementation of the second frequency domain resource group can refer to the relevant introduction of the first frequency domain resource group. The difference is that the frequency domain resources in the second frequency domain resource group have different frequency bands / ranges than those in the first frequency domain resource group.

[0160] If the communication parameters of the first frequency domain resource group include the TA value, and the communication parameters of the second frequency domain resource group include the offset between the TA value corresponding to the second frequency domain resource group and the TA value corresponding to the first frequency domain resource group, then the first terminal can determine the TA value corresponding to the second frequency domain resource group through this offset.

[0161] Continuing from the above Figure 7 Examples, such as Figure 7As shown, the access network device can determine the offset #1 between TA value #0 and TA value #1, and indicate the TA value #0 and offset #1 corresponding to CC group #0 to the first terminal. Then, the first terminal calculates the TA value #1 using the TA value #0 and offset #1, for example, TA value #1 = TA value #0 + offset #1. Here, "+" can also be replaced with "-", or other mathematical operations, which are not limited in this application.

[0162] Continuing from the above Figure 8 Examples, such as Figure 8 As shown, when the access network device further indicates the TA value #0 and TA value #2 corresponding to the current transmission to the first terminal, the access network device can determine the offset #2 between TA value #0 and TA value #2, and indicate the TA value #0 and offset #2 corresponding to CC group #0 to the first terminal. Then, the first terminal calculates the TA value #2 using TA value #0 and offset #2, for example, TA value #2 = TA value #0 + offset #2. Here, "+" can also be replaced with "-", or other mathematical operations, which are not limited in this application.

[0163] Additionally, the access network device can also indicate to the first terminal the uniform offset of the TA value in the TA group corresponding to the second frequency domain resource group relative to the TA value in the TA group corresponding to the first frequency domain resource group. For example, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. TA group #0 is configured for CC group #0, specifically including TA value #0 and TA value #1. TA group #1 is configured for CC group #1, specifically including TA value #2 and TA value #3. The access network device indicates to the first terminal the TA value #0 and TA value #1 corresponding to CC group #0, as well as the offset #3 of the TA value between TA group #0 and TA group #1. Furthermore, the first terminal can calculate TA value #2 using TA value #0 and offset #3, for example, TA value #2 = TA value #0 + offset #3, and calculate TA value #3 using TA value #1 and offset #3, for example, TA value #3 = TA value #1 + offset #3. The "+" sign can also be replaced with "-", or other mathematical operations; this application does not limit this. Furthermore, when the access network device transmits data on the CC in CC group #1, it can semi-statically or dynamically indicate the identifier of the TA value corresponding to the current transmission to the first terminal.

[0164] In other words, the access network device indirectly indicates the TA value corresponding to the second frequency domain resource group to the first terminal through the offset between the TA value corresponding to the second frequency domain resource group and the TA value corresponding to the first frequency domain resource group, as well as the TA value corresponding to the first frequency domain resource group, thereby reducing the overhead of signaling indication.

[0165] The identifiers of TA values ​​in multiple TA groups can be jointly numbered or independently numbered.

[0166] Optionally, the identifier of the TA group can be simply referred to as the TA group identifier. The identifier of the TA value can be simply referred to as the TA value identifier, the TA identifier, or the TA identifier.

[0167] For example, TA group 1 includes TA value identifier 0 (TA value #0) and TA value identifier 1 (TA value #1), and TA group 2 includes TA value identifier 2 (TA value #2) and TA value identifier 3 (TA value #3).

[0168] For example, TA group 1 includes TA value identifier 0 (TA value #0) and TA value identifier 1 (TA value #1), while TA group 2 includes TA value identifier 0 (TA value #2) and TA value identifier 1 (TA value #3).

[0169] If the TA value identifier is a combined number, the terminal device can determine the TA value identifier and thus determine the TA value. If the TA value identifier is an independent number, the terminal device can determine the TA group identifier and the TA value identifier and thus determine the TA value.

[0170] It is understood that the first information can also indicate the communication parameters of other frequency domain resource groups besides the first and second frequency domain resource groups. The implementation of the first information indicating the communication parameters of other frequency domain resource groups can be found in the relevant descriptions of the communication parameters of the first or second frequency domain resource groups, and will not be elaborated upon here.

[0171] Optionally, the access network device can also configure the communication parameters of other frequency domain resource groups besides the first and second frequency domain resource groups through other information, without limitation.

[0172] In one possible implementation, the TCI state and TA value of the first frequency domain resource group have a first association relationship. The TCI state is determined based on the first association relationship and the TA value, or the TA value is determined based on the first association relationship and the TCI state. That is, the first terminal can determine the TA value corresponding to the TCI state through the TCI state of the first frequency domain resource group and the first association relationship, thus indirectly determining the TA value of the first frequency domain resource group. Alternatively, the first terminal can determine the TCI state corresponding to the TA value of the first frequency domain resource group through the TA value of the first frequency domain resource group and the first association relationship, thus indirectly determining the TCI state of the first frequency domain resource group.

[0173] The access network device can also determine the association between each frequency domain resource group in the first frequency domain resource set and the TCI status and TA value. This application embodiment takes the first association determined according to the first frequency domain resource group as an example for introduction.

[0174] The first association relationship can be indicated by the first information or by other information, without limitation. The first association relationship can be a correspondence between the identifier (or index) of a TCI state and the TA value. For example, if there are multiple TCI states and multiple TA values, the first association relationship can include the correspondence between the identifier of each TCI state and the identifier of each TA value. This correspondence can be one-to-one or one-to-many, without limitation. Alternatively, the first association relationship can be a correspondence between the identifier (or index) of a TCI state and the identifier (or index) of a TA value. For example, if there are multiple TCI states and multiple TA values, the first association relationship can include the correspondence between the identifier of each TCI state and the identifier of each TA value. This correspondence can be one-to-one or one-to-many, without limitation.

[0175] Optionally, the first association may also include the association between the first frequency domain resource group, the TCI state and the TA value, that is, any two items between the first frequency domain resource group, the TCI state and the TA value are mutually associated.

[0176] For example, such as Figure 9 As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. The access network device configures CC group #0 to correspond (or be associated with) TCI state #0, and CC group #1 to correspond with TCI state #1 and TCI state #2. Furthermore, the access network device configures CC group #0 to correspond with TA value #0, and CC group #1 to correspond with TA value #1 and TA value #2. Further, the access network device configures TCI state #0 to be associated with TA value #0, TCI state #1 to be associated with TA value #1, and TCI state #2 to be associated with TA value #2.

[0177] In this way, the access network device determines the first association between the TCI state and the TA value at the granularity of the frequency domain resource group. The first terminal can determine the TA value associated with the current TCI state based on the first association and send a signal based on the TA value associated with the current TCI state. In this way, configuring the TA values ​​associated with different TCI states at the granularity of the frequency domain resource group can reduce configuration overhead and signaling overhead.

[0178] In another possible implementation, the TCI state group and TA group of the first frequency domain resource group have a second association relationship. The TCI state group is determined based on the second association relationship and the TA group, or the TA group is determined based on the second association relationship and the TCI state group. That is, the first terminal can determine the TA group corresponding to the TCI state group through the TCI state group corresponding to the first frequency domain resource group and the second association relationship, that is, indirectly determine the TA group corresponding to the first frequency domain resource group. Alternatively, the first terminal can determine the TCI state group corresponding to the TA group through the TA group corresponding to the first frequency domain resource group and the second association relationship, that is, indirectly determine the TCI state group corresponding to the first frequency domain resource group.

[0179] The second association can be indicated by the first information or by other information, without limitation. The second association can be a correspondence between the identifier (or index) of a TCI state group and a TA group. For example, if there are multiple TCI state groups and multiple TA groups, the second association can include the correspondence between the identifier of each TCI state group and the identifier (or index) of each TA group. This correspondence can be one-to-one or one-to-many, without limitation. Alternatively, the second association can be a correspondence between the identifier (or index) of a TCI state group and the identifier (or index) of a TA group. For example, if there are multiple TCI state groups and multiple TA groups, the second association can include the correspondence between the identifier of each TCI state group and the identifier (or index) of each TA group. This correspondence can be one-to-one or one-to-many, without limitation.

[0180] Optionally, the second association may also include the association between the first frequency domain resource group, the TCI state group and the TA group, that is, any two items between the first frequency domain resource group, the TCI state group and the TA group are mutually associated.

[0181] For example, such as Figure 10 As shown, the first frequency domain resource set includes CC group #0 and CC group #1. CC group #0 includes CC#0 and CC#1, and CC group #1 includes CC#2 and CC#3. The access network device is configured to have a corresponding (or associated) relationship between CC group #0 and TCI status group #0, and a corresponding relationship between CC group #1 and TCI status groups #1 and #2. Furthermore, the access network device is configured to have a corresponding relationship between CC group #0 and TA group #0, and a corresponding relationship between CC group #1 and TA group #1 and #2. Further, the access network device is configured to associate TCI status group #0 with TA group #0, TCI status group #1 with TA group #1, and TCI status group #2 with TA group #2.

[0182] In this way, the access network device determines the second association between the TCI state group and the TA group at the granularity of the frequency domain resource group. The first terminal can determine the TA group associated with the TCI state group where the current TCI state is located based on the second association, and send a signal according to the TA value contained in the TA group associated with the TCI state group. In this way, configuring the TA groups associated with different TCI state groups at the granularity of the frequency domain resource group can reduce configuration overhead and signaling overhead.

[0183] One possible implementation is that the access network device and / or the first terminal can determine a first association relationship and / or a second association relationship according to rules predefined in the protocol. For example, the identifier of the TCI state is the same as the identifier of the TA value, indicating that they are associated, and / or, the identifier of the TCI state group is the same as the identifier of the TA group, indicating that they are associated. For instance, if the identifier of TCI state #0 is the same as the identifier of TA value #0, it indicates that TCI state #0 is associated with TA value #0, i.e., it has a first association relationship. Similarly, if the identifier of TCI state group #0 is the same as the identifier of TA group #0, it indicates that TCI state group #0 is associated with TA group #0, i.e., it has a second association relationship.

[0184] Different access network devices have different TCI states. The first terminal can determine different TA values ​​based on different TCI states, or different TA groups based on different TCI state groups. For example, in a dynamic site selection scenario, the same carrier frequency can communicate with multiple non-co-located access network devices. The first terminal determines the TA value #0 associated with TCI state #0 based on TCI state #0 in the DCI from the access network device (such as the first access network device) and a first association relationship. Alternatively, the first terminal determines the TA group #0 associated with TCI state group #0 based on TCI state group #0 in the DCI from the access network device (such as the first access network device) and a second association relationship.

[0185] Optionally, the access network device may also determine a third association relationship. The third association relationship may include the association relationship between the TCI status and TA value of the first frequency domain resource group, and the association relationship between the TCI status group and TA group of the first frequency domain resource group. That is, the above-mentioned first association relationship and the second association relationship are used in combination. This will not be elaborated further.

[0186] Optionally, the access network device may also determine a fourth association relationship, which may include the association relationship between the TCI status group and the TA value of the first frequency domain resource group, and / or the association relationship between the TCI status and the TA group of the first frequency domain resource group, which will not be elaborated further.

[0187] In the above embodiments, only the first frequency domain resource group is used as an example for illustration. In actual implementation, the access network device in the communication system can configure M frequency domain resource groups for the first terminal and send first information. The first information is used to determine the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status and TA value, and / or to determine the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status group and TA group. M is an integer greater than or equal to 1. At this time, when M=1, the M frequency domain resource groups are equivalent to the above-mentioned first frequency domain resource group, the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status and TA value is equivalent to the first association relationship, and the association relationship between each frequency domain resource group in the M frequency domain resource groups and the TCI status group and TA group is equivalent to the second association relationship. When M is greater than 1, the above-mentioned first frequency domain resource group is one of the M frequency domain resource groups. The implementation of each of the M frequency domain resource groups can refer to the relevant introduction of the first frequency domain resource group. The implementation of the association between each of the M frequency domain resource groups and the TCI state and TA value can refer to the relevant introduction of the first association. The implementation of the association between each of the M frequency domain resource groups and the TCI state group and TA group can refer to the relevant introduction of the second association. These details will not be elaborated upon.

[0188] The various implementation schemes of the above embodiments can be used individually or in combination, and there are no restrictions on this.

[0189] It is understood that, in order to achieve the functions in the above embodiments, the base station and terminal include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed in hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0190] The above combination Figures 4-10 The communication method provided in the embodiments of this application is described in detail below. Figure 11 and Figure 12 This document describes in detail the communication apparatus used to perform the communication method provided in the embodiments of this application.

[0191] Figure 11 and Figure 12 The diagram illustrates the possible structures of communication devices provided in embodiments of this application. These communication devices can be used to implement the functions of a terminal or base station in the above method embodiments, and thus also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device may be as follows: Figure 1 The terminal 120 shown can also be as follows: Figure 1 The base station 110 shown can also be a module (such as a chip) applied to a terminal or base station.

[0192] like Figure 11 As shown, the communication device 1100 includes a processing module 1101 and a transceiver module 1102.

[0193] In some embodiments, the communication device 1100 may be adapted to Figure 1 In the communication system shown, the execution Figure 4 The function of the first terminal in the communication method shown is illustrated. For ease of explanation, Figure 11 Only the main components of the communication device 1100 are shown.

[0194] The transceiver module 1102 is used to receive first information, which indicates the communication parameters of the first frequency domain resource group. The communication parameters are applied to at least two frequency domain resources in the first frequency domain resource group. The processing module 1101 is used to send signals on at least one frequency domain resource in the first frequency domain resource group through the transceiver module 1102 according to the communication parameters.

[0195] Optionally, the transceiver module 1102 may include a receiving module and a transmitting module. Figure 11 (Not shown in the image). The transceiver module 1102 is used to implement the sending and receiving functions of the communication device 1100.

[0196] Optionally, the communication device 1100 may also include a storage module. Figure 11 (Not shown in the image), this storage module stores information such as programs, instructions, or data. The processing module 1101 can read information from the storage module, enabling the communication device 1100 to execute... Figure 4 The function of the first terminal in the communication method shown.

[0197] It should be understood that the communication device 1100 may be a terminal device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. The communication module, the circuit or chip responsible for communication functions, the chip system, or other components or assemblies may be used in a terminal device. This application does not limit this.

[0198] In addition, the technical effects of the communication device 1100 can be referenced. Figure 4 The technical effects of the communication method shown will not be elaborated here.

[0199] In other embodiments, the communication device 1100 may be adapted to Figure 1 In the communication system shown, the execution Figure 4 The function of the access network device in the communication method shown.

[0200] The processing module 1101 is used to determine the communication parameters of the first frequency domain resource group, and the communication parameters are applied to at least two frequency domain resources in the first frequency domain resource group; the transceiver module 1102 is used to send first information, and the first information is used to indicate the communication parameters.

[0201] Optionally, the transceiver module 1102 may include a receiving module and a transmitting module. Figure 11 (Not shown in the image). The transceiver module 1102 is used to implement the sending and receiving functions of the communication device 1100.

[0202] Optionally, the communication device 1100 may also include a storage module. Figure 11 (Not shown in the image), this storage module stores information such as programs, instructions, or data. The processing module 1101 can read information from the storage module, enabling the communication device 1100 to execute... Figure 4 The communication method shown illustrates the function of the access network device.

[0203] It should be noted that the communication device 1100 can be a network device, a communication module, a circuit or chip responsible for communication functions, a chip system, or other components or assemblies. This communication module, circuit or chip responsible for communication functions, chip system, or other components or assemblies can be used in network devices.

[0204] Furthermore, the technical effects of the communication device 1100 can be referred to separately. Figure 4 The technical effects of the communication method shown will not be elaborated here.

[0205] It should be understood that when the communication device 1100 is used to perform the functions of the first terminal or to perform the functions of the access network device, the processing module 1101 involved in the communication device 1100 can be implemented by a processor or processor-related circuit components, and can be a processor or processing unit; the transceiver module 1102 can be implemented by a transceiver or transceiver-related circuit components or a communication interface.

[0206] For a more detailed description of the aforementioned processing unit 1311 and transceiver unit 1320, please refer to [reference needed]. Figure 4 The relevant descriptions in the method embodiments shown.

[0207] For example, Figure 12 Schematic diagram of the communication device provided in the embodiments of this application Figure 2 The communication device can be a terminal device or a network device, or it can be a chip (system) or other component or assembly that can be installed in the terminal device or network device. For example... Figure 12As shown, the communication device 1200 may include a processor 1201. Optionally, the communication device 1200 may also include a memory 1202 and / or a transceiver 1203. The processor 1201 is coupled to the memory 1202 and the transceiver 1203, for example, they may be connected via a communication bus.

[0208] The following is combined with Figure 12 A detailed description of each component of the communication device 1200 is provided below:

[0209] The processor 1201 is the control center of the communication device 1200. It can be a single processor or a collective term for multiple processing elements. For example, the processor 1201 can be one or more central processing units (CPUs), application-specific integrated circuits (ASICs), or one or more integrated circuits configured to implement the embodiments of this application, such as one or more digital signal processors (DSPs), or one or more field-programmable gate arrays (FPGAs).

[0210] Optionally, the processor 1201 can perform various functions of the communication device 1200 by running or executing software programs stored in the memory 1202 and calling data stored in the memory 1202.

[0211] In a specific implementation, as one example, the processor 1201 may include one or more CPUs, for example... Figure 12 CPU0 and CPU1 are shown in the diagram.

[0212] In a specific implementation, as one example, the communication device 1200 may also include multiple processors, for example... Figure 12 The processors 1201 and 1204 are shown. Each of these processors can be a single-core processor (CPU) or a multi-core processor (CPU). Here, "processor" can refer to one or more devices, circuits, and / or processing cores used to process data (e.g., computer program instructions).

[0213] The memory 1202 is used to store the software program that executes the solution of this application, and is controlled by the processor 1201 to execute it. The specific implementation method can be referred to the above method embodiment, and will not be repeated here.

[0214] Optionally, the memory 1202 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but not limited thereto. The memory 1202 may be integrated with the processor 1201 or exist independently, and may be connected via the interface circuit of the communication device 1200. Figure 12 (Not shown in the image) is coupled to the processor 1201, and this embodiment of the application does not specifically limit this.

[0215] Alternatively, the memory may be located outside the communication device.

[0216] Transceiver 1203 is used for communication with other communication devices. For example, if communication device 1200 is a terminal device, transceiver 1203 can be used to communicate with a network device or with another terminal device. As another example, if communication device 1200 is a network device, transceiver 1203 can be used to communicate with a terminal device or with another network device.

[0217] Optionally, transceiver 1203 may include a receiver and a transmitter. Figure 12 (Not shown separately). The receiver is used to implement the receiving function, and the transmitter is used to implement the transmitting function.

[0218] Optionally, the transceiver 1203 can be integrated with the processor 1201, or it can exist independently and be connected via the interface circuit of the communication device 1200. Figure 12 (Not shown in the image) is coupled to the processor 1201, and this embodiment of the application does not specifically limit this.

[0219] It should be noted that, Figure 12 The structure of the communication device 1200 shown does not constitute a limitation on the communication device. Actual communication devices may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0220] Furthermore, the technical effects of the communication device 1200 can be referred to the technical effects of the sensing method described in the above method embodiments, and will not be repeated here.

[0221] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from the base station, which can be understood as the information being first received by other modules in the terminal (such as an RF module or antenna), and then sent to the terminal chip by these modules. The terminal chip sends information to the base station, which can be understood as the information being first sent to other modules in the terminal (such as an RF module or antenna), and then sent to the base station by these modules.

[0222] When the aforementioned communication device is a chip applied to a base station, the base station chip implements the functions of the base station in the above method embodiments. The base station chip receives information from the terminal, which can be understood as the information being first received by other modules in the base station (such as an RF module or antenna), and then sent to the base station chip by these modules. The base station chip sends information to the terminal, which can be understood as the information being sent down to other modules in the base station (such as an RF module or antenna), and then sent to the terminal by these modules.

[0223] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0224] It is understood that the processor in the embodiments of this application can be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0225] The method steps in the embodiments of this application can be implemented in hardware or in software instructions executable by a processor. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, optical discs, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. The storage medium can also be a component of the processor.

[0226] The processor and storage medium can be located in an application-specific integrated circuit (ASIC). Alternatively, the ASIC can be located in a base station or terminal. The processor and storage medium can also exist as discrete components in the base station or terminal.

[0227] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0228] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0229] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0230] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that, The method includes: Receive first information, the first information indicating communication parameters of a first frequency domain resource group, the communication parameters being applied to at least two frequency domain resources in the first frequency domain resource group; Signal transmission is performed on at least one frequency domain resource in the first frequency domain resource group according to the communication parameters.

2. The method according to claim 1, characterized in that, The frequency domain resources refer to: a portion of the bandwidth or a carrier.

3. The method according to claim 1 or 2, characterized in that, The communication parameters include quasi-co-address parameters and / or timing parameters. The quasi-co-address parameters are used to determine the quasi-co-address QCL relationship between the antenna port of the signal and the antenna ports of one or two reference signals. The timing parameters are used to determine the transmission time of the signal.

4. The method according to claim 3, characterized in that, The quasi-co-address parameters include at least one Transmission Configuration Indicator (TCI) state or TCI state group, and the timing parameters include at least one Timing Advance (TA) value or TA group.

5. The method according to claim 4, characterized in that, The TCI state and the TA value have a first correlation relationship; the TCI state is determined based on the first correlation relationship and the TA value, or the TA value is determined based on the first correlation relationship and the TCI state.

6. The method according to claim 4, characterized in that, The TCI state group and the TA group have a second association relationship; the TCI state group is determined based on the second association relationship and the TA group, or the TA group is determined based on the second association relationship and the TCI state group.

7. The method according to any one of claims 1 to 6, characterized in that, The first information is also used to indicate the communication parameters of the second frequency domain resource group, the communication parameters of the second frequency domain resource group including the offset between the TA value corresponding to the second frequency domain resource group and the TA value corresponding to the first frequency domain resource group.

8. The method according to any one of claims 1 to 5, characterized in that, The first information is also used to indicate the frequency domain resources included in the first frequency domain resource group.

9. A communication method, characterized in that, include: Determine the communication parameters for a first frequency domain resource group, wherein the communication parameters are applied to at least two frequency domain resources in the first frequency domain resource group; Send a first message, which is used to indicate the communication parameters.

10. The method according to claim 9, characterized in that, The frequency domain resources refer to: a portion of the bandwidth or a carrier.

11. The method according to claim 9 or 10, characterized in that, The method further includes: Signal transmission is performed on at least one frequency domain resource in the first frequency domain resource group, wherein the quasi-co-address parameters and / or timing parameters of the signal are determined based on the communication parameters; wherein the quasi-co-address parameters are used to determine the quasi-co-address QCL relationship between the antenna port of the signal and the antenna ports of one or two reference signals; and the timing parameters are used to determine the transmission time of the signal.

12. The method according to claim 11, characterized in that, The quasi-co-address parameters include at least one Transmission Configuration Indicator (TCI) state or TCI state group, and the timing parameters include at least one Timing Advance (TA) value or TA group.

13. The method according to claim 12, characterized in that, The TCI state and the TA value have a first correlation relationship; the TCI state is determined based on the first correlation relationship and the TA value, or the TA value is determined based on the first correlation relationship and the TCI state.

14. The method according to claim 12, characterized in that, The TCI state group and the TA group have a second association relationship; the TCI state group is determined based on the second association relationship and the TA group, or the TA group is determined based on the second association relationship and the TCI state group.

15. A communication device, characterized in that, The apparatus includes: a module for performing the method as described in any one of claims 1-8, or a module for performing the method as described in any one of claims 9-14.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a computer program or instructions that, when executed on a communication device, cause the communication device to perform the method as described in any one of claims 1-8, or cause the computer to perform the method as described in any one of claims 9-14.

17. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when run on a communication device, cause the method as described in any one of claims 1-8 to be performed, or cause the method as described in any one of claims 9-14 to be performed.

Images