Communication method and related apparatus

Abstract

Embodiments of the present application provide a communication method and a related apparatus. The method comprises: sending first information, wherein the first information is used for indicating supported frequency domain resource information; sending second information, wherein the second information is used for indicating information used for frequency domain resource switching; and performing frequency domain resource switching on the basis of the first information and the second information. The use of the embodiments of the present application can realize flexible configuration of an uplink capability and / or a downlink capability.

Description

A communication method and related apparatus

[0001] This application claims priority to Chinese Patent Application No. 202411550556.8, filed with the China National Intellectual Property Administration on October 31, 2024, entitled "A Communication Method and Related Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication, and more particularly to a communication method and related apparatus. Background Technology

[0003] In the existing cell concept, each cell needs to contain both uplink and downlink carriers, and typically, the number of normal uplink (UL) component carriers (CCs) and normal downlink (UL) component carriers (CCs) is one each. With the increasing demands of terminal services, especially uplink services, there is a need to support more uplink carrier aggregation (CA) capabilities to increase uplink throughput. However, according to the current cell definition, enhanced uplink CA capabilities are accompanied by enhanced downlink CA capabilities, but for most terminals, higher downlink CA capabilities mean higher costs and implementation complexity. In the 3rd Generation Partnership Project (3GPP) Rel-18 phase, the feature of dynamic uplink carrier switching was introduced, which enables terminals to switch between 3 or 4 frequency bands to improve throughput. For example, in Figure 1, the terminal can support dynamic switching between 4 member carriers (CC) (labeled as 101, 102, 103, and 104 respectively), and the uplink peak rate can reach 1.103Gbps. However, this requires the terminal to also support the capability of downlink 4 member carriers (CC).

[0004] With the introduction of more new frequency bands, such as U6G (6425-7125MHz), terminals need stronger downlink capabilities to support uplink CA with more CCs. Therefore, to reduce the dependence of uplink enhancement on downlink capabilities, it is necessary to support the decoupling of uplink configuration and downlink capabilities, thereby reducing the complexity of terminal implementation. For example, as shown in Figure 2, if a terminal supports uplink 7CC carrier aggregation (each row of gray-filled squares represents 1 uplink CC), and scheduling is performed in the traditional way, it requires downlink 7CC capability (each row of black-filled squares represents 1 downlink CC). If uplink and downlink are decoupled, downlink only needs to support 2CC capability (each row of blank-filled squares represents idle resources).

[0005] How to support increasing the uplink capability of a terminal without increasing its dependence on downlink capability, i.e., how to decouple uplink and downlink frequency band capabilities, is a technical problem that those skilled in the art are studying. Summary of the Invention

[0006] This application discloses a communication method and related apparatus that can flexibly configure the uplink and / or downlink capabilities of terminal devices.

[0007] This application provides a communication method, the method comprising:

[0008] Send a first message, which is used to indicate the supported frequency domain resource information;

[0009] Send a second message, which indicates information for frequency domain resource switching;

[0010] Frequency domain resource switching is performed based on the first information and the second information.

[0011] In the above method, the first information initially indicates the frequency domain resources supported by the terminal device. Then, the second information further specifies how to use the frequency domain resources indicated by the first information, effectively imposing further constraints on the supported frequency domain resources to obtain the final frequency domain resources supported by the terminal device. In other words, by combining the first and second information, flexible configuration of uplink and downlink capabilities can be achieved, supporting the decoupling of uplink and downlink capabilities, thereby better supporting the differentiated transmission needs of uplink and downlink services.

[0012] In conjunction with the first aspect, in one possible implementation of the first aspect, the frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, each of which is a portion of the first frequency band combination. This approach is for downlink frequency band combinations. Because the downlink transmission requirements of the terminal device are relatively small, it can further indicate, based on the downlink first frequency band combination indicated by the first information, that only a portion of the frequency domain resources in the first frequency band combination can be used simultaneously for reception. For example, synchronous reception can be performed through a separate second frequency band combination (belonging to a subset of the first frequency band combination), but different second frequency band combinations can be switched to achieve downlink transmission. Using this approach, the smaller downlink capability requirements of the terminal device can be met.

[0013] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in yet another possible implementation of the first aspect, the second frequency band combination includes at least two downlink frequency bands used for downlink transmission.

[0014] In conjunction with the first aspect, or any of the possible implementations of the first aspect described above, in yet another possible implementation of the first aspect, the second information includes the identification information of the first frequency band combination. That is, the identification information of the first frequency band combination is directly associated with the first frequency band combination, so as to further determine the final downlink frequency domain resources based on the first frequency band combination.

[0015] In conjunction with the first aspect, or any of the possible implementations of the first aspect described above, in yet another possible implementation of the first aspect, the second information is specifically used to indicate that switching is possible between any first number of frequency band combinations within the first frequency band combination, where the first number is less than the total number of frequency bands included in the first frequency band combination. That is, directly indicating that switching is possible between a subset of frequency bands within the first frequency band combination carries less information and saves communication overhead.

[0016] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in yet another possible implementation of the first aspect, the second information includes information on a combination of multiple second frequency bands.

[0017] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in yet another possible implementation of the first aspect, the second information includes multiple frequency band switching groups (e.g., pair or group), each frequency band switching group containing at least two frequency bands, and the multiple frequency band switching groups are capable of switching between each other.

[0018] In conjunction with the first aspect, or any of the possible implementations of the first aspect described above, in another possible implementation of the first aspect, the frequency domain resource information indicated by the first information includes a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, allowing switching between the third frequency band combination and the other frequency band combinations. This approach is for uplink frequency band combinations. Because the uplink transmission demand of the terminal device is relatively large, other frequency band combinations can be further indicated based on the third frequency band combination indicated by the first information, enabling the terminal device to switch between the third frequency band combination and other frequency band combinations to achieve uplink transmission. Using this approach can meet the greater uplink capability requirements of the terminal device.

[0019] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in yet another possible implementation of the first aspect, each frequency band combination in the set of frequency band combinations includes at least two uplink frequency bands used for uplink transmission.

[0020] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in another possible implementation of the first aspect, the second information includes the table index and / or row index corresponding to each frequency band combination in the frequency band combination set, or the second information includes the frequency band combination index corresponding to each frequency band combination in the frequency band combination set.

[0021] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in yet another possible implementation of the first aspect, the second information includes a first set of frequency bands contained in the frequency band combination set, and the second information is specifically used to indicate that a subset of the first set can be switched.

[0022] In conjunction with the first aspect, or any of the above possible implementations of the first aspect, in another possible implementation of the first aspect, the second information includes information on multiple uplink frequency band combinations and information on multiple downlink frequency band combinations. The multiple uplink frequency band combinations are switchable, the multiple downlink frequency band combinations are switchable, and both the multiple uplink frequency band combinations and the multiple downlink frequency band combinations are part of the supported frequency domain resources.

[0023] Secondly, embodiments of this application provide a communication method, the method comprising:

[0024] Receive first information, which is used to indicate frequency domain resource information supported by the terminal device;

[0025] Receive and transmit second information, which is used to indicate information for frequency domain resource switching;

[0026] Frequency domain resource switching is performed based on the first information and the second information.

[0027] In the above method, the first information initially indicates the frequency domain resources supported by the terminal device. Then, the second information further specifies how to use the frequency domain resources indicated by the first information, effectively imposing further constraints on the supported frequency domain resources to obtain the final frequency domain resources supported by the terminal device. In other words, by combining the first and second information, flexible configuration of uplink and downlink capabilities can be achieved, supporting the decoupling of uplink and downlink capabilities, thereby better supporting the differentiated transmission needs of uplink and downlink services.

[0028] In conjunction with the second aspect, in another possible implementation of the second aspect, the frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, each of which is a portion of the first frequency band combination. This approach is for downlink frequency band combinations. Because the downlink transmission requirements of the terminal device are relatively small, it can further indicate, based on the downlink first frequency band combination indicated by the first information, that only a portion of the frequency domain resources in the first frequency band combination can be used simultaneously for reception. For example, synchronous reception can be performed through a separate second frequency band combination (belonging to a subset of the first frequency band combination), but different second frequency band combinations can be switched to achieve downlink transmission. Using this approach, the smaller downlink capability requirements of the terminal device can be met.

[0029] In conjunction with the second aspect, or any of the possible implementations of the second aspect described above, in yet another possible implementation of the second aspect, the frequency domain resource information indicated by the first information includes a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, allowing switching between the third frequency band combination and the other frequency band combinations. This approach is for uplink frequency band combinations. Because the uplink transmission demand of the terminal device is relatively large, other frequency band combinations can be further indicated based on the third frequency band combination indicated by the first information, enabling the terminal device to switch between the third frequency band combination and other frequency band combinations to achieve uplink transmission. Using this approach can meet the greater uplink capability requirements of the terminal device.

[0030] Thirdly, embodiments of this application provide a communication method, the method comprising:

[0031] Send first report information, wherein the first report information includes one or more of the following: a first number of carriers supporting parallel detection capability of control information, a second number of carriers supporting parallel data reception and processing capability, and a third number of carriers supporting downlink parallel measurement capability;

[0032] Receive second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

[0033] In this method, the terminal device actively reports its downlink capability requirements. After the network device learns about the downlink capability requirements of the terminal device, it configures the appropriate cell type for the terminal device according to the downlink capability requirements to meet the downlink capability requirements of the terminal device. This method can realize the on-demand configuration of downlink capability, rather than the equal configuration of uplink and downlink capability for the terminal device. It not only fully meets the downlink capability requirements of the terminal, but also avoids resource waste.

[0034] In conjunction with the third aspect, in one possible implementation of the third aspect, the first reporting information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support concurrent data reception and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band. That is to say, the first reporting information is specific to a single frequency band, achieving smaller-granularity capability requirement reporting, thus enabling more refined frequency domain resource allocation.

[0035] In conjunction with the third aspect, or any of the above possible implementations of the third aspect, in yet another possible implementation of the third aspect, the first report information includes the first quantity, the second quantity, and the third quantity, wherein the first quantity is less than or equal to the second quantity, and the third quantity is greater than or equal to the second quantity.

[0036] In conjunction with the third aspect, or any of the above possible implementations of the third aspect, in yet another possible implementation of the third aspect, the second configuration information includes the cell type of the configured cell and / or the reference relationship between cells, which includes timing reference relationship and measurement reference relationship.

[0037] In conjunction with the third aspect, or any of the above possible implementations of the third aspect, in yet another possible implementation of the third aspect, the cell type of each cell configured by the second configuration information belongs to one of the following types:

[0038] Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS;

[0039] Type 2: Supports PDCCH and PDSCH;

[0040] Type 3: Supports SSB, CSI-RS, and TRS;

[0041] Type 4: Supports PDSCH;

[0042] Type 5: Does not support the reception of any signal.

[0043] In conjunction with the third aspect, or any of the above possible implementations of the third aspect, in yet another possible implementation of the third aspect, the reference relationship includes the downlink and / or uplink timing of the first cell referenced by the second cell, and the reference signal measurement results of the second cell can be used to determine the radio resource management, beam management, modulation and coding scheme (MCS), etc., of the first cell. Optionally, both the first cell and the second cell belong to the cells configured by the second configuration information.

[0044] Fourthly, embodiments of this application provide a communication method, the method comprising:

[0045] Receive first report information, wherein the first report information includes one or more of the following: the number of first carriers supporting parallel detection capability of control information, the number of second carriers supporting parallel data reception and processing capability, and the number of third carriers supporting downlink parallel measurement capability;

[0046] Send second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

[0047] In this method, the terminal device actively reports its downlink capability requirements. After the network device learns about the downlink capability requirements of the terminal device, it configures the appropriate cell type for the terminal device according to the downlink capability requirements to meet the downlink capability requirements of the terminal device. This method can realize the on-demand configuration of downlink capability, rather than the equal configuration of uplink and downlink capability for the terminal device. It not only fully meets the downlink capability requirements of the terminal, but also avoids resource waste.

[0048] In conjunction with the fourth aspect, in one possible implementation of the fourth aspect, the first reporting information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support concurrent data reception and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band. That is to say, the first reporting information is specific to a single frequency band, achieving smaller-granularity capability requirement reporting, thus enabling more refined frequency domain resource allocation.

[0049] In conjunction with the fourth aspect, or any of the above possible implementations of the fourth aspect, in yet another possible implementation of the fourth aspect, the second configuration information includes the cell type of the configured cell and / or the reference relationship of first information between cells, the first information including timing synchronization or RRM measurement.

[0050] In conjunction with the fourth aspect, or any of the above possible implementations of the fourth aspect, in yet another possible implementation of the fourth aspect, the cell type of each cell configured by the second configuration information belongs to one of the following types:

[0051] Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS;

[0052] Type 2: Supports PDCCH and PDSCH;

[0053] Type 3: Supports SSB, CSI-RS, and TRS;

[0054] Type 4: Supports PDSCH;

[0055] Type 5: Does not support the reception of any signal.

[0056] Fifthly, embodiments of this application provide a communication device, which can be a network device or a component or functional module within a network device, wherein:

[0057] The communication device includes a module for performing the method in the second aspect or any possible implementation of the second aspect;

[0058] Alternatively, the communication device may include a module for performing the method in the fourth aspect or any possible implementation of the fourth aspect;

[0059] Alternatively, the communication device includes a processor for performing the second aspect or any possible implementation of the method.

[0060] Alternatively, the communication device includes a processor for performing the fourth aspect or any possible implementation of the method.

[0061] Sixthly, embodiments of this application provide a communication device, which can be a terminal device or a device or functional module in a terminal device, wherein:

[0062] The communication device includes a module for performing the method described in the first aspect or any possible implementation thereof;

[0063] Alternatively, the communication device may include a module for performing the method described in the third aspect or any possible implementation thereof;

[0064] Alternatively, the communication device may include a processor for performing the method described in the first aspect or any possible implementation thereof.

[0065] Alternatively, the communication device may include a processor for performing the method described in the third aspect or any possible implementation thereof.

[0066] In a seventh aspect, embodiments of this application provide a communication device, characterized in that it includes a logic circuit and an interface, the logic circuit and the interface being coupled; the interface is used for inputting and / or outputting information, wherein:

[0067] The logic circuit is used to perform the method described in the first aspect or any possible implementation thereof, or...

[0068] The logic circuit is used to execute the method described in the second aspect or any possible implementation thereof, or...

[0069] The logic circuit is used to execute the method described in the third aspect or any possible implementation thereof, or...

[0070] The logic circuit is used to perform the method described in the fourth aspect or any possible implementation of the fourth aspect.

[0071] Eighthly, embodiments of this application provide a computer-readable storage medium for storing a computer program, wherein:

[0072] When the computer program is executed, it is capable of implementing the first aspect or any possible implementation of the first aspect, or...

[0073] When the computer program is executed, it is capable of implementing the second aspect or any possible implementation of the second aspect, or...

[0074] When the computer program is executed, it is capable of implementing the third aspect or any possible implementation of the third aspect, or...

[0075] When the computer program is executed, it is capable of implementing the fourth aspect or any possible implementation of the fourth aspect.

[0076] Ninthly, embodiments of this application provide a communication system, which includes a network device and a terminal device, wherein:

[0077] The network device is configured to perform the method described in the second aspect or any possible implementation thereof, and the terminal device is configured to perform the method described in the first aspect or any possible implementation thereof; or...

[0078] The network device is used to perform the method described in the fourth aspect or any possible implementation thereof, and the terminal device is used to perform the method described in the third aspect or any possible implementation thereof. Attached Figure Description

[0079] The accompanying drawings used in the embodiments of this application are described below.

[0080] Figure 1 is a schematic diagram of an uplink CC and a downlink CC provided in an embodiment of this application;

[0081] Figure 2 is a schematic diagram of another uplink CC and downlink CC provided in an embodiment of this application;

[0082] Figure 3 is a schematic diagram of the structure of a communication system provided in an embodiment of this application;

[0083] Figure 4 is a schematic diagram of another type of uplink CC and downlink CC provided in the embodiments of this application;

[0084] Figure 5 is a schematic diagram of another uplink CC and downlink CC provided in an embodiment of this application;

[0085] Figure 6 is a schematic diagram of another uplink CC and downlink CC provided in an embodiment of this application;

[0086] Figure 7 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0087] Figure 8 is a flowchart illustrating another communication method provided in an embodiment of this application;

[0088] Figure 9 is a schematic diagram of a cell type configuration scheme provided in an embodiment of this application;

[0089] Figure 10 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0090] Figure 11 is a schematic diagram of the structure of a communication device provided in an embodiment of this application;

[0091] Figure 12 is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0092] The embodiments of this application are described below with reference to the accompanying drawings.

[0093] First, the relevant concepts involved in the embodiments of this application will be introduced:

[0094] (1) Temporal resources can be symbols, slots, mini-slots, sub-frames, frames, etc.

[0095] (2) Frequency domain resources can be resource elements (RE), resource blocks (RB), channels, subchannels, control channel elements, resource pools, bandwidth parts (BWP), carriers, bands, etc.

[0096] Please refer to Figure 3, which is a schematic diagram of a communication system 30 applicable to an embodiment of this application. This communication system includes two or more communication devices capable of uplink and downlink communication. For example, the communication system includes network equipment and terminal equipment, which can transmit data via transmission media such as radio waves. For instance, communication can be performed using the following technologies: Long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD) system, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) system, 5th Generation (5G) mobile communication system, New Radio Access Technology (NR), 6th Generation (6G) mobile communication system, or other radio access technologies. The above communication technologies can be non-standalone (NSA) and / or standalone (SA) methods. In addition, this communication system can also be applied to machine-type communication (MTC), long-term evolution-machine (LTE-M) technology, device-to-device (D2D) networks, machine-to-machine (M2M) networks, Internet of Things (IoT) networks, or other networks. IoT networks, for example, can include vehicle-to-everything (V2X) networks. The communication methods in V2X systems are collectively referred to as vehicle-to-X (V2X), where X can represent anything. For example, V2X can include vehicle-to-vehicle (V2V) communication, vehicle-to-infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, or vehicle-to-network (V2N) communication. The V2X communication system is a sidelink (SL) transmission technology based on D2D communication.

[0097] The communication system 30 includes network device 311 and terminal devices 301, 302, 303, 304, 305, and 306. It should be understood that the communication system 30 may include more network devices or more or fewer terminal devices. Network devices and terminal devices can be hardware, functionally defined software, or a combination of both. Network devices and terminal devices can communicate with each other through other devices or network elements. In this system, network device 311 can transmit data with multiple terminal devices; that is, network device 311 sends downlink data to terminal devices 301-306, and terminal devices 301-306 can also send uplink data to network device 311. In addition, terminal devices 304, 305 and 306 can also form a communication system in which network device 311 can send downlink data to terminal devices 301, 302 and 305, and then terminal device 305 sends the downlink data to terminal device 304 or terminal device 306.

[0098] 1) Terminal equipment, including equipment that provides voice and / or data connectivity to users, specifically including equipment that provides voice to users, or equipment that provides data connectivity to users, or equipment that provides both voice and data connectivity to users. For example, it may include a handheld device with wireless connectivity or a processing device connected to a wireless modem. This terminal equipment can communicate with the core network via a radio access network (RAN), exchanging voice or data with the RAN, or interacting with the RAN for both voice and data. The terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device (D2D) terminal equipment, vehicle-to-everything (V2X) terminal equipment, machine-to-machine / machine-type communications (M2M / MTC) terminal equipment, Internet of Things (IoT) terminal equipment, light UE, reduced capability UE (REDCAP UE), subscriber unit, subscriber station, mobile station, remote station, access point (AP), remote terminal, access terminal, user terminal, user agent, or user device, etc. For example, this can include mobile phones (or "cellular" phones), smartphones, computers with mobile terminal devices, portable, pocket-sized, handheld, computer-embedded mobile devices, laptop computers, wireless data cards, tablet computers, wireless modems, etc. Examples include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other similar devices.This also includes limited devices, such as those with low power consumption, limited storage capacity, or limited computing power. Examples include information sensing devices such as barcodes, radio frequency identification (RFID), sensors, global positioning systems (GPS), and laser scanners.

[0099] By way of example and not limitation, in this embodiment, the terminal device can also be a wearable device. Wearable devices, also known as wearable smart devices or smart wearable devices, are a general term for devices that utilize wearable technology to intelligently design and develop everyday wearables, such as glasses, gloves, watches, clothing, and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not merely hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are feature-rich, large in size, and can achieve complete or partial functions without relying on a smartphone, such as smartwatches or smart glasses, as well as those that focus on a specific type of application function and require the use of other devices such as smartphones, such as various smart bracelets, smart helmets, and smart jewelry for vital sign monitoring.

[0100] The various terminal devices described above, if located in a vehicle (e.g., placed inside or installed inside a vehicle), can all be considered vehicle-mounted terminal devices, also known as on-board units (OBUs). In this embodiment, the terminal device may also include a relay. Alternatively, it can be understood that anything capable of data communication with a base station can be considered a terminal device.

[0101] In this application embodiment, the device for implementing the functions of the terminal device can be the terminal device itself, or it can be a device capable of supporting the terminal device in implementing the functions, such as a chip system, which can be installed in the terminal device. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the terminal device is used as an example to describe the technical solutions provided in this application embodiment.

[0102] 2) Network devices, including access network (AN) devices such as base stations (e.g., access points), can refer to devices in the access network that communicate with wireless terminal devices over the air interface via one or more cells, or, for example, network devices in a vehicle-to-everything (V2X) technology such as roadside units (RSUs). Base stations can be used to convert received air frames to and from IP packets, acting as routers between terminal devices and the rest of the access network, which may include IP networks. RSUs can be fixed infrastructure entities supporting V2X applications and can exchange messages with other entities supporting V2X applications. Network devices can also coordinate the management of air interface attributes. For example, network equipment may include base transceiver stations (BTS) in Global System for Mobile Communication (GSM) or Code Division Multiple Access (CDMA) networks, NBs (NodeBs) in Wideband Code Division Multiple Access (WCDMA), evolved base stations (NodeBs, eNBs, or e-NodeBs) in Long Term Evolution (LTE) or Long Term Evolution-Advanced (LTE-A) systems, or next-generation node Bs (gNBs) in 5G NR systems (also referred to as NR systems), or radio controllers, centralized units (CUs), and distributed units (DUs) in cloud radio access networks (Cloud RAN). In addition, network equipment may also be wearable devices, vehicle-mounted devices, transmission and reception points (TRPs), etc., and the embodiments of this application are not limited thereto.

[0103] Network equipment may also include core network equipment, such as access and mobility management function (AMF), user plane function (UPF), session management function (SMF), etc.

[0104] In this embodiment of the application, the means for implementing the function of the network device can be the network device itself, or it can be a means that enables the network device to implement the function, such as a chip system, which can be installed in the network device.

[0105] The embodiments of this application aim to optimize the correlation between uplink and downlink capabilities in a communication system, and to more effectively decouple uplink and downlink capabilities. Currently, some solutions for decoupling uplink and downlink capabilities are being explored, such as:

[0106] For example, as shown in Figure 4, a UL-only serving cell is introduced. In such a serving cell, there is only an uplink carrier and no downlink carrier. For instance, cell 2 (Cell#2) has only an uplink carrier (UL CC#2), and cell 4 (Cell#4) has only an uplink carrier (UL CC#4). Therefore, both cell 2 (Cell#2) and cell 4 (Cell#4) are UL-only serving cells. It can be seen that in the scenario shown in Figure 4, the uplink capability is 4CC, and the downlink capability is 2CC, achieving a certain degree of decoupling between the uplink and downlink capabilities. However, the scenario shown in Figure 4 differs significantly from existing carrier configurations in its implementation, requiring substantial modifications to the existing standards.

[0107] For example, as shown in Figure 5, more supplemental uplink (SUL) bands / carriers can be introduced. SUL is relative to normal UL, and typically a cell can contain one UL carrier and one SUL carrier. For instance, cell 5 includes an uplink carrier (UL CC#1), an uplink carrier (SUL CC#2), and a downlink carrier (DL CC#1); cell 6 includes an uplink carrier (UL CC#3), an uplink carrier (SUL CC#4), and a downlink carrier (DL CC#2). It can be seen that the uplink capability is 4 CCs, and the downlink capability is 2 CCs. Introducing new SUL bands requires adding more SUL bands to the existing standard. However, there are currently no new spectrum plans for cellular communication in the existing network. Refarming a certain frequency band would also lead to spectrum fragmentation and a reduction in the performance of the existing network communication.

[0108] In view of this, embodiments of this application provide a new communication scheme. Optionally, to minimize the impact on the existing protocol architecture, the existing cell architecture is still adopted. For example, a serving cell may contain both uplink and downlink frequency bands. However, the downlink capability of the terminal device is limited, and it cannot receive signals simultaneously in all downlink cells. Therefore, a downlink reception handover mechanism is introduced, so that the downlink reception capability ultimately supported by the terminal device is less than the number of serving cells configured or activated by the network, or the number of downlink carriers ultimately supported by the terminal is less than the number of uplink carriers supported. As shown in Figure 6, the network device can configure or activate four serving cells: Cell#1, Cell#2, Cell#3, and Cell#4. Cell#1 includes the uplink band UL CC#1 and the downlink band DL CC#1; Cell#2 includes the uplink band UL CC#2 and the downlink band DL CC#2; Cell#3 includes the uplink band UL CC#3 and the downlink band DL CC#3; and Cell#4 includes the uplink band UL CC#4 and the downlink band DL CC#4. However, the terminal device only reports support for downlink reception of two of these carriers or cells, for example, reporting support for downlink reception of Cell#1 and Cell#3. Therefore, the terminal device performs downlink handover between the four cells. This scheme better decouples uplink and downlink capabilities without significantly altering existing protocols, causing spectrum fragmentation, or reducing communication performance. The following explanation, using the embodiment shown in Figure 7, elaborates on this scheme.

[0109] Please refer to Figure 7, which is a flowchart illustrating a communication method provided in an embodiment of this application. This method can be implemented based on the communication system shown in Figure 3, or based on other architectures. The method includes, but is not limited to, the following steps:

[0110] Step S701: The terminal device sends the first information to the network device.

[0111] Accordingly, the network device receives the first information.

[0112] Specifically, the first information is used to indicate information about the frequency domain resources supported by the terminal device. The frequency domain resources supported by the terminal device include uplink frequency domain resources (i.e., uplink capability) and / or downlink frequency domain resources (i.e., downlink capability). Optionally, the downlink frequency domain resources may be a first frequency band combination, and the uplink frequency domain resources may be a third frequency band combination. The first frequency band combination includes at least two downlink frequency bands used for downlink transmission, and the third frequency band combination includes at least two uplink frequency bands used for uplink transmission.

[0113] Optionally, the first information includes a downlink CA configuration (i.e., CA configuration or NR CA configuration) and / or an uplink CA configuration (i.e., UL CA configuration or single uplink carrier), the downlink CA configuration indicating a first frequency band combination (such as the downlink CA combination) and the uplink CA configuration indicating a third frequency band combination (such as the uplink CA combination).

[0114] Table 1 illustrates the uplink CA combination and downlink CA combination. In one example, the first frequency band combination indicated in the downlink CA configuration is CA_n1A-n3A-n8A-n78A, meaning that the terminal device supports downlink reception on the frequency bands n1A, n3A, n8A, and n78A. The third frequency band combination indicated in the uplink CA configuration is one of the following combinations: CA_n1A-n3A, CA_n1A-n8A, CA_n1A-n78A, CA_n3A-n8A, CA_n3A-n78A, and CA_n8A-n78A. For example, if the indicated third frequency band combination is CA_n1A-n3A, it means that the terminal device supports uplink transmission on the frequency bands n1A and n3A.

[0115] Table 1

[0116] As shown in Table 2, the uplink CA combination and downlink CA combination are defined in the protocol. When it is necessary to indicate (or represent) which CA combination, the information of the table (such as the table identifier) ​​can be carried to correspond to the specific table, because there may be multiple similar table relationships. In addition, the row information (such as the row identifier) ​​is also carried to correspond to a specific row in the table, thus corresponding to a specific CA combination. In summary, the above-mentioned first information can indicate the frequency domain resources (such as CA combinations) supported by the terminal device by carrying table information and row information. Of course, indicating through table information and row information is not the only way, and other methods may also be used, which are not limited here.

[0117] Table 2

[0118] Step S702: The terminal device sends the second information to the network device.

[0119] Accordingly, the network device receives this second information.

[0120] The first piece of information indicates the frequency domain resources supported by the terminal device, while the second piece of information indicates the information used for frequency domain resource switching. This allows the network device to know how the terminal switches based on the frequency domain resources indicated in the first piece of information, thereby determining the terminal device's final uplink and / or downlink capabilities. For ease of understanding, the content and indication method of the second piece of information are illustrated below with examples.

[0121] In one method, the frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations. The multiple second frequency band combinations are all part of the frequency bands in the first frequency band combination. That is to say, the first frequency band combination contains multiple frequency bands, and the second frequency band combination includes at least two downlink frequency bands. The at least two downlink frequency bands are all from multiple frequency bands in the first frequency band combination. However, the number of frequency bands contained in a single second frequency band combination is less than the number of frequency bands contained in the first frequency band combination. That is to say, the second frequency band combination can be regarded as a subset of the first frequency band combination.

[0122] There are many ways to indicate multiple combinations of second frequency bands using the second information. Several examples are given below:

[0123] In Case 1-1, the second information is specifically used to indicate that any first number of frequency bands in the first frequency band combination can be switched (e.g., by carrying a first parameter), where the first number is less than the total number of frequency bands included in the first frequency band combination.

[0124] Optionally, the second information also includes the first quantity information, wherein:

[0125] For example, the first quantity is 2, and the second information indicates support for reporting any combination of the two frequency bands in the first frequency band combination, as well as support for switching between these combinations. Optionally, the second information can be represented by the parameter TwoBandsOutofDLCaConfiguration. Taking the first frequency band combination as {CA_n1A-n3A-n8A-n78A}, which consists of four frequency bands, as an example, TwoBandsOutofDLCaConfiguration indicates that the UE can support the reception of the second frequency band combination consisting of any two bands from the four bands in the first frequency band combination and the switching between different second frequency band combinations. It can be understood that based on the first frequency band combination {CA_n1A-n3A-n8A-n78A}, the quantity parameter TwoBandsOutofDLCaConfiguration... The dsOutofDLCaConfiguration query yields the following second frequency band combinations: {CA_n1A-n3A}, {CA_n1A-n8A}, {CA_n1A-n78A}, {CA_n3A-n8A}, {CA_n3A-n78A}, and {CA_n8A-n78A}. Therefore, it can be determined that the terminal can switch between these six second frequency band combinations for downlink transmission.

[0126] For example, the first quantity is 3, and the second information indicates that it supports reporting any combination of the three frequency bands in the first frequency band combination, as well as supporting switching between these combinations. Optionally, the second information can be represented by the parameter ThreeBandsOutofDLCaConfiguration. Taking the first frequency band combination as {CA_n1A-n3A-n8A-n78A}, which consists of four bands, as an example, ThreeBandsOutofDLCaConfiguration indicates that the UE can support the reception of second frequency band combinations consisting of any three bands from the four bands in the first frequency band combination and the switching between different second frequency band combinations. It can be understood that based on the first frequency band combination {CA_n1A-n3A-n8A} and the quantity parameter ThreeBandsOutofDLCaConfiguration, the second frequency band combinations {CA_n1A-n3A-n78A}, {CA_n1A-n8A-n78A}, and {CA_n3A-n8A-n78A} can be obtained. Therefore, it can be known that the terminal can switch between these four second frequency band combinations for downlink transmission.

[0127] In Cases 1-2, the second information includes information on multiple combinations of second frequency bands.

[0128] Optionally, the second information carries specific information about multiple second frequency band combinations. For example, taking the first frequency band combination as {CA_n1A-n3A-n8A-n78A}, which consists of four bands, as an example, the second information may include {CA_n1A-n3A-n8A, CA_n1A-n3A-n78A} to indicate support for the second frequency band combination {CA_n1A-n3A-n8A} and the second frequency band combination {CA_n1A-n3A-n78A}, and / or, the second information may include {CA_n1A-n3A, CA_n1A-n8A} to indicate support for the second frequency band combination {CA_n1A-n3A} and the second frequency band combination {CA_n1A-n8A}. Optionally, the information about the multiple second frequency band combinations carried in the second information may specifically be the identifier of the multiple second frequency band combinations, or other information that can uniquely correspond to a specific frequency band combination.

[0129] Optionally, the second information may report whether it supports the CA configuration in the first information, or it may default to not supporting the CA configuration in the first information and only supporting a subset of capabilities, i.e., only supporting the reported second frequency band combination. In this embodiment, the second information may be explicitly associated with the preceding first information. There are many ways in which the second information is associated with the first information. For example, the second information carries the identification information of the first frequency band combination (indicated by the first information), indicating that the second information is based on the first frequency band combination indicated by the CA configuration in the first information, and indicates multiple second frequency band combinations. The first frequency band combination may be an index of the first frequency band combination in the CA combination list, an index in a table defined in the protocol, or an index in other ways. In this embodiment, the index may be composed of multiple dimension indexes (e.g., table index and row index), or it may be an index directly corresponding to the frequency band combination, or it may be an index among all frequency band combinations supported by the terminal device. No specific limitation is made here.

[0130] Method Two: The second information includes information on multiple band switching groups (e.g., band pair / band group) (e.g., band group identifier, name, index, etc.). Each band switching group contains at least two frequency bands, and switching between these multiple band switching groups is possible. This band switching group can be a separately configured concept for switching frequency bands. After the terminal device and network device identify the band switching group, they know that switching between the various band switching groups is possible. The frequency bands included in each band switching group come from the aforementioned first band combination. Optionally, the second information can carry corresponding information to indicate which frequency bands constitute which band switching group.

[0131] In this embodiment, the terminal device and the network device can simultaneously perform downlink transmission on at least two frequency bands in a single second frequency band combination, and can switch between different second frequency band combinations. Alternatively, the terminal device and the network device can simultaneously perform downlink transmission on at least two frequency bands in a single frequency band switching group, and can switch between different frequency band switching groups.

[0132] Method 3: The frequency domain resource information indicated by the first information includes a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations. Furthermore, the second information indicates that switching is possible between the third frequency band combination and the other frequency band combinations. Each frequency band combination in the set contains at least two uplink frequency bands used for uplink transmission.

[0133] Optionally, the terminal device can report support for the third frequency band combination and other frequency band combinations separately. For example, the third frequency band combination is reported through a first information, and another frequency band combination is also reported through a first information. Then, it is additionally reported through a second information that it supports switching between the third frequency band combination and the other frequency band combination. As shown in Table 3, the terminal device reports support for these 6 two-band frequency band combinations through the first information, and then additionally reports support for the supersets corresponding to the 6 frequency band combinations through the second information. Therefore, the terminal device can switch between multiple uplink frequency band combinations contained in the superset. For example, based on the frequency bands in the superset, frequency band combinations such as CA_n1A-n3A, CA_n1A-n8A, CA_n1A-n78A, CA_n3A-n8A, CA_n3A-n78A, CA_n8A-n78A, and CA_n1A-n3A-n8A can be obtained. Therefore, the terminal can switch between these frequency band combinations.

[0134] Table 3

[0135] There are many ways to indicate the combination of frequency bands for the second information. Several examples are given below:

[0136] Case 3-1, the second information includes the table index and / or row index corresponding to each frequency band combination in the frequency band combination set, or the second information includes the frequency band combination index corresponding to each frequency band combination in the frequency band combination set.

[0137] For example, in one scenario, frequency band combinations are represented by both table indexes and row indexes within the table. Each table index can point to a table similar to Table 2 regarding frequency band combinations, and each row index can point to a row or record in the table. This row or record corresponds to a specific frequency band combination. Therefore, a specific frequency band combination can be indicated by combining table indexes and row indexes. Multiple sets of table indexes and row indexes can indicate multiple frequency band combinations. For instance, the second information includes the parameter MoreCombinationsforULSwitching, whose content is {UL CA configuration table 1, index1; ... table 2, index 4; ... table 3, index 3 ...}. This corresponds to the frequency band combinations in the set of multiple frequency band combinations indicated, including the frequency band combination corresponding to the first row (index1) of table 1, the frequency band combination corresponding to the fourth row (index4) of table 2, and the frequency band combination corresponding to the third row (index3) of table 3.

[0138] Of course, the table may be a default table or a table that has been indicated in other ways. In this case, the second information can carry row indexes but not table indexes. Based on a default or previously indicated table and multiple row indexes, multiple frequency band combinations can be directly mapped to complete the indication of the frequency band combination set.

[0139] For example, each row or record in each table corresponds to a unique frequency band combination index (or identifier). Therefore, when indicating a set of frequency band combinations, the frequency band combination indexes corresponding to multiple frequency band combinations in that set can be directly carried.

[0140] Case 3-2, the second information includes a first set of frequency bands contained in the frequency band combination set, and the second information is specifically used to indicate that a subset in the first set can be switched.

[0141] For example, if the set of frequency band combinations contains the following six combinations: {CA_n1A-n3A}, {CA_n1A-n8A}, {CA_n1A-n78A}, {CA_n3A-n8A}, {CA_n3A-n78A}, and {CA_n8A-n78A}, then these combinations contain the frequencies n1A, n3A, n8A, and n78A. Therefore, the first set is the set consisting of the frequency bands n1A, n3A, n8A, and n78A. This is equivalent to a superset of the frequency bands involved in the frequency band combination set. Optionally, the second information may include the parameter TwoBandsOutofULCaConfiguration, which carries the content representing the first set, such as {CA_n1A-n3A-n8A-n78A} or {n1A-n3A-n8A-n78A} or {n1A, n3A, n8A, n78A}, etc. The parameter TwoBandsOutofULCaConfiguration is used to indicate that switching is possible between any two different frequency band combinations (which can be understood as subsets) composed of frequency bands in the first set. For example, as shown in Table 4, the parameters about UL CA configuration carried in the second information include the parameter TwoBandsOutofULCaConfiguration. The content of the parameter TwoBandsOutofULCaConfiguration is {CA_n1A-n3A-n8A-n78A}, which indicates that switching is possible between any two uplink frequency band combinations among the six uplink frequency band combinations {CA_n1A-n3A}, {CA_n1A-n8A}, {CA_n1A-n78A}, {CA_n3A-n8A}, {CA_n3A-n78A}, and {CA_n8A-n78A} for uplink transmission.

[0142] Table 4

[0143] Method 4: The second information includes information on multiple uplink frequency band combinations and multiple downlink frequency band combinations. These multiple uplink frequency band combinations are switchable, and both the multiple uplink and downlink frequency band combinations are partial frequency bands within the supported frequency domain resources. For example, as shown in Table 5, if the supported frequency domain resources indicated in the first information are {CA_n1A-n3A-n8A-n78A}, then the downlink information in the second information can include information on these five downlink frequency band combinations: {CA_n1A-n3A}, {CA_n1A-n8A}, {CA_n3A-n8A}, {CA_n3A-n78A}, and {CA_n8A-n78A}. The uplink information in the second information... The information includes information on six uplink frequency band combinations: {CA_n1A-n3A}, {CA_n1A-n8A}, {CA_n1A-n78A}, {CA_n3A-n8A}, {CA_n3A-n78A}, and {CA_n8A-n78A}. It can be seen that the frequency bands involved in these multiple uplink and downlink frequency band combinations all come from the frequency bands in the supported frequency domain resources indicated in the first information.

[0144] Table 5

[0145] Optionally, the information on multiple uplink frequency band combinations and multiple downlink frequency band combinations mentioned above may specifically include index information (or identification information) for multiple uplink frequency band combinations and index information (or identification information) for multiple downlink frequency band combinations. This index information is composed of indexes of multiple dimensions (such as table indexes and row indexes), or it may be an index directly corresponding to the frequency band combination, or it may be an index among all frequency band combinations supported by the terminal device.

[0146] Step S703: The terminal device performs frequency domain resource switching based on the first information and the second information.

[0147] In this embodiment, the terminal device initially indicates its supported first frequency band combination (for downlink) and / or third frequency band combination (for uplink) through first information. However, the terminal device only uses this as a basis; the final supported frequency band combination is further optimized based on the first frequency band combination (for downlink) and / or third frequency band combination (for uplink), for example, by further defining the final uplink and downlink capabilities through second information. Correspondingly, after receiving the first information, the network device can initially determine the first frequency band combination (for downlink) and / or third frequency band combination (for uplink) supported by the terminal device, and determine the final uplink and downlink capabilities of the terminal device in conjunction with the second information.

[0148] Therefore, terminal devices and network devices can determine the final frequency domain resources for uplink and / or downlink transmission based on the first information and the second information, and switch according to the determined frequency domain resources to perform uplink and / or downlink transmission. For example, downlink switching between multiple second frequency band combinations, and uplink switching between a third frequency band combination and other frequency band combinations.

[0149] In the method shown in Figure 7, the first information initially indicates the frequency domain resources supported by the terminal device. Then, the second information further specifies how to use the frequency domain resources indicated by the first information, effectively imposing further constraints on the supported frequency domain resources to obtain the final frequency domain resources supported by the terminal device. For example, for downlink frequency band combinations, since the downlink transmission demand of the terminal device is relatively small, it can be further indicated, based on the downlink frequency domain resources indicated by the first information, that only a portion of the frequency domain resources can be used simultaneously, but switching between different frequency domain resources is possible to achieve downlink transmission. Similarly, for uplink frequency band combinations, since the uplink transmission demand of the terminal device is relatively large, other frequency domain resources can be further indicated, based on the uplink frequency domain resources indicated by the first information, allowing the terminal device to switch between other frequency domain resources and the frequency domain resources indicated by the first information to achieve uplink transmission. In summary, by combining the first and second information, flexible configuration of uplink and downlink capabilities can be achieved, supporting the decoupling of uplink and downlink capabilities, thereby better supporting the differentiated transmission needs of uplink and downlink services.

[0150] Please refer to Figure 8, which is a flowchart illustrating a communication method provided in an embodiment of this application. This method can be implemented based on the communication system shown in Figure 3, or based on other architectures. The method includes, but is not limited to, the following steps:

[0151] Step S801: The terminal device sends the first report information.

[0152] The first report information includes one or more of the following: the number of first carriers supporting parallel detection capability for control information, the number of second carriers supporting concurrent data reception and processing capability, and the number of third carriers supporting downlink parallel measurement capability.

[0153] The parallel detection capability of control information can also be called the capability of blind detection carriers of the Physical Downlink Control Channel (PDCCH), hereinafter referred to as PDCCH blind detection capability. Specifically, it indicates how many carriers a terminal device (such as a UE) can simultaneously blindly detect the downlink control channel (PDCCH). Therefore, the first carrier number is the number of PDCCH blind detection CCs supported by the terminal device (such as a UE).

[0154] Data concurrent reception and processing capability can also be referred to as Physical Downlink Shared Channel (PDSCH) concurrent reception and processing capability, hereinafter referred to as PDSCH processing capability; specifically, it indicates how many carriers a terminal device (such as a UE) can simultaneously receive and process downlink data PDSCH. Therefore, the second carrier number is the number of PDSCH decoding CCs supported by the terminal device (such as a UE).

[0155] Downlink parallel measurement capability may include one or more of the following: downlink parallel synchronization capability (or, Synchronization Signal Block (SSB) / Tracking Reference Signal (TRS) detection capability) and downlink channel parallel measurement capability (or, Channel State Information Reference Signals (CSI-RS) parallel detection capability). The SSB / TRS detection capability indicates how many carriers the terminal device (e.g., UE) can maintain synchronization simultaneously, and the CSI-RS capability indicates how many carriers the terminal device (e.g., UE) can maintain downlink measurement simultaneously. The third carrier number is the number of downlink signals (e.g., SSB and / or CSI-RS) received by the terminal device (e.g., UE).

[0156] In one alternative approach, the first report information includes the first carrier quantity X, the second carrier quantity Y, and the third carrier quantity Z, wherein the first quantity X is less than or equal to the second quantity Y, and the third quantity Z is greater than or equal to the second quantity Y.

[0157] Accordingly, the network device receives the first report information.

[0158] Step S802: The network device sends the second configuration information.

[0159] Upon receiving the first report information, the network device can obtain the capabilities reported by the terminal device, such as one or more of the following: a first number of carriers supporting parallel detection of control information, a second number of carriers supporting concurrent data reception and processing, and a third number of carriers supporting parallel downlink measurement. Based on these capabilities of the terminal device, the network device configures the cell type of the corresponding cell and / or the reference relationships between cells to meet the capability requirements of the terminal device. For example, this reference relationship could be a reference relationship about a first information dimension, which includes timing synchronization or Radio Resource Management (RRM) measurements.

[0160] For example, each community belongs to one of the following types (in practice, it is not limited to these 5 types):

[0161] Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS and TRS.

[0162] Type 2: Supports PDCCH and PDSCH.

[0163] Type 3: Supports SSB, CSI-RS and TRS.

[0164] Type 4: Supports PDSCH.

[0165] Type 5: Does not support the reception of any signal.

[0166] It should be noted that each of the above types may actually support more or fewer objects, and the specific definition can be made according to actual needs.

[0167] It is understandable that, in addition to configuring the cell type to determine the downlink transmission channels and signals of the cell, the downlink signals that the terminal equipment of the cell needs to receive can also be configured directly through configuration. For example, the terminal equipment of cell #1 can be configured to receive PDCCH, PDSCH, SSB, CSI-RS and TRS, and the terminal equipment of cell #2 can be configured to receive PDCCH and PDSCH.

[0168] Optionally, the reference relationship includes a timing (synchronization) reference relationship and a measurement reference relationship. A timing reference relationship can be understood as both having the same downlink and / or uplink timing. For example, cell #2 references the timing synchronization of cell #1, meaning that the downlink and / or uplink timing of cell #2 is consistent with that of cell #1. A measurement reference relationship can be understood as the measurement results of a reference signal from one cell being used for radio resource management, cell handover, beam management, and modulation and coding scheme (MCS) determination in another cell. For example, cell #2 references the measurements of cell #1, meaning that cell #2 can determine the MCS value based on the CSI-RS measurement results of cell #1.

[0169] For example, a terminal device reports support for 2CC PDCCH blind detection (i.e., the number of first carriers X=2), support for 4CC PDSCH reception (i.e., the number of second carriers Y=4), and support for 1CC downlink timing synchronization capability (i.e., support for the number of third carriers Z=1). Then, the network device can be configured with four cells, as shown in Figure 9. Cell #1 is configured according to type 1 above, cell #2 according to type 2 above, and cells #3 and #4 according to type 4 above. Simultaneously, the timing synchronization and RRM measurement of cells #2, #3, and #4 need to refer to cell #1. With this configuration, the terminal device (such as a UE) can support 2CC PDCCH blind detection (i.e., the number of first carriers X=2), support for 4CC PDSCH reception (i.e., the number of second carriers Y=4), and support for 1CC downlink timing synchronization capability (i.e., support for the number of third carriers Z=1).

[0170] In one alternative approach, the terminal device uniformly reports the number of PDCCH blind detection CCs, the number of PDSCH received CCs, and the number of CCs used for timing synchronization and downlink measurement supported by the terminal device, according to the granularity of the terminal device. That is, the first report information is reported according to the granularity of the terminal device.

[0171] In one alternative approach, the terminal device reports the number of PDCCH blind detection CCs, the number of PDSCH received CCs, and the number of CCs used for timing synchronization and downlink measurement supported by the terminal device according to the frequency band granularity. That is, the first reporting information is reported according to the frequency band granularity. For example, the terminal device reports the number of PDCCH blind detection CCs, the number of PDSCH received CCs, and the number of timing synchronization and downlink measurement CCs supported on band A.

[0172] Optionally, a typical configuration is provided where X=1, Y=0, and Z=1 within a band, indicating that there is only one PDCCH blind detection CC and one downlink measurement CC within a band. It should be noted that the number of first carriers X, second carriers Y, and third carriers Z reported by the terminal device should be less than or equal to the upper limit values ​​of the parameters defined in the protocol, or the number of first carriers X, second carriers Y, and third carriers Z reported by the terminal device should be less than or equal to the upper limit value of the number of CCs supported on that band reported by the terminal device.

[0173] In this embodiment, the reference relationship between the cell types and / or first information between cells configured by the network device for the terminal is carried in the second configuration information and sent to the terminal device. It can be seen that the second configuration information is generated based on the first report information.

[0174] Accordingly, the terminal device receives the second configuration information and configures the cell according to the second configuration information. After the terminal device completes the configuration according to the second configuration information, it has downlink capability that meets its own needs.

[0175] In the method shown in Figure 8, the terminal device actively reports its downlink capability requirements. After the network device learns about the downlink capability requirements of the terminal device, it configures the appropriate cell type for the terminal device according to the downlink capability requirements to meet the downlink capability requirements of the terminal device. This method can realize the on-demand configuration of downlink capability, rather than the equal configuration of uplink and downlink capability for the terminal device. It not only fully meets the downlink capability requirements of the terminal, but also avoids resource waste.

[0176] The following describes the communication device provided in the embodiments of this application.

[0177] This application divides the communication device into functional modules according to the above method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and only represents one logical functional division; other division methods may be used in actual implementation. The communication device of the embodiments of this application will be described in detail below with reference to Figures 10 to 12.

[0178] Figure 10 is a schematic diagram of a communication device provided in an embodiment of this application. As shown in Figure 10, the communication device includes a processing module 1001 and a transceiver module 1002. The transceiver module 1002 can implement corresponding communication functions, and the processing module 1001 is used for data processing. The transceiver module 1002 can also be referred to as an interface, a communication interface, or a communication module, etc.

[0179] In some embodiments of this application, the communication device can be used to perform the actions performed by the terminal device in the above method embodiments. For example, the communication device can be the terminal device itself or a chip or functional module configurable in the terminal device. In other embodiments of this application, the communication device can be used to perform the actions performed by the network device in the above method embodiments. For example, the communication device can be the network device itself or a chip or functional module configurable in the network device. Specifically, the transceiver module 1002 is used to perform the transceiver-related operations in the above method embodiments, and the processing module 1001 is used to perform the processing-related operations in the above method embodiments. The processing module 1001 can perform the corresponding operations by calling a computer program or by performing the corresponding operations through corresponding hardware circuits. The transceiver module 1002 can perform the transceiver operations independently or under the control of the processing module 1001.

[0180] For example, the communication device shown in FIG10 can be a terminal device or a device (e.g., a chip) in a terminal device. The processing module 1001 and the transceiver module 1002 in the communication device can respectively perform the following operations:

[0181] The transceiver module 1002 sends first information, which is used to indicate the supported frequency domain resource information;

[0182] The transceiver module 1002 sends second information, which is used to indicate information for frequency domain resource switching;

[0183] The processing module 1001 performs frequency domain resource switching based on the first information and the second information.

[0184] In the above method, the first information initially indicates the frequency domain resources supported by the terminal device. Then, the second information further specifies how to use the frequency domain resources indicated by the first information, effectively imposing further constraints on the supported frequency domain resources to obtain the final frequency domain resources supported by the terminal device. In other words, by combining the first and second information, flexible configuration of uplink and downlink capabilities can be achieved, supporting the decoupling of uplink and downlink capabilities, thereby better supporting the differentiated transmission needs of uplink and downlink services.

[0185] In one possible implementation, the frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, each of which is a portion of the first frequency band combination. This approach is for downlink frequency band combinations. Since the downlink transmission requirements of the terminal device are relatively small, it can further indicate, based on the downlink first frequency band combination indicated by the first information, that only a portion of the frequency domain resources in the first frequency band combination can be used simultaneously for reception. For example, synchronous reception can be performed through a separate second frequency band combination (belonging to a subset of the first frequency band combination), but different second frequency band combinations can be switched to achieve downlink transmission. This approach can meet the smaller downlink capability requirements of the terminal device.

[0186] In one possible implementation, the second frequency band combination includes at least two downlink frequency bands used for downlink transmission.

[0187] In one possible implementation, the second information includes the identification information of the first frequency band combination. That is, the identification information of the first frequency band combination is directly associated with the first frequency band combination, so as to further determine the final downlink frequency domain resources based on the first frequency band combination.

[0188] In one possible implementation, the second information is specifically used to indicate that switching is possible between any first number of frequency bands in the first frequency band combination, where the first number is less than the total number of frequency bands included in the first frequency band combination. That is, directly indicating that switching is possible between a subset of frequency bands in the first frequency band combination carries less information and saves communication overhead.

[0189] In one possible implementation, the second information includes information on a combination of multiple second frequency bands.

[0190] In one possible implementation, the second information includes multiple frequency band switching groups (e.g., pairs or groups), each containing at least two frequency bands, and the multiple frequency band switching groups are capable of switching between each other.

[0191] In one possible implementation, the frequency domain resource information indicated by the first information includes a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, allowing switching between the third frequency band combination and the other frequency band combinations. This approach is for uplink frequency band combinations. Because the uplink transmission demand of terminal devices is relatively large, other frequency band combinations can be further indicated based on the third frequency band combination indicated by the first information, enabling the terminal device to switch between the third frequency band combination and other frequency band combinations to achieve uplink transmission. Using this approach can meet the greater uplink capability requirements of terminal devices.

[0192] In one possible implementation, each frequency band combination in the set of frequency band combinations includes at least two uplink frequency bands used for uplink transmission.

[0193] In one possible implementation, the second information includes a table index and / or row index corresponding to each frequency band combination in the frequency band combination set, or the second information includes a frequency band combination index corresponding to each frequency band combination in the frequency band combination set.

[0194] In one possible implementation, the second information includes a first set of frequency bands contained in the frequency band combination set, and the second information is specifically used to indicate that a subset of the first set can be switched.

[0195] In one possible implementation, the second information includes information on multiple uplink frequency band combinations and multiple downlink frequency band combinations, wherein the multiple uplink frequency band combinations are switchable, the multiple downlink frequency band combinations are switchable, and both the multiple uplink frequency band combinations and the multiple downlink frequency band combinations are part of the supported frequency domain resources.

[0196] Reusing Figure 10, in some other embodiments of this application, for example, the communication device shown in Figure 10 can be a terminal device or a device (e.g., a chip) in a terminal device. The processing module 1001 and the transceiver module 1002 in the communication device can respectively perform the following operations:

[0197] The transceiver module 1002 sends first report information, wherein the first report information includes one or more of the following: the number of first carriers supporting parallel detection capability of control information, the number of second carriers supporting parallel data reception and processing capability, and the number of third carriers supporting downlink parallel measurement capability;

[0198] The transceiver module 1002 receives second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

[0199] In this method, the terminal device actively reports its downlink capability requirements. After the network device learns about the downlink capability requirements of the terminal device, it configures the appropriate cell type for the terminal device according to the downlink capability requirements to meet the downlink capability requirements of the terminal device. This method can realize the on-demand configuration of downlink capability, rather than the equal configuration of uplink and downlink capability for the terminal device. It not only fully meets the downlink capability requirements of the terminal, but also avoids resource waste.

[0200] In one possible implementation, the first reporting information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support concurrent data reception and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band. That is, the first reporting information is specific to a single frequency band, achieving smaller-granularity capability requirement reporting, thus enabling more refined frequency domain resource allocation.

[0201] In another possible implementation, the first report information includes the first quantity, the second quantity, and the third quantity, wherein the first quantity is less than or equal to the second quantity, and the third quantity is greater than or equal to the second quantity.

[0202] In another possible implementation, the second configuration information includes the cell type of the configured cell and / or the reference relationship of first information between cells, the first information including timing synchronization or RRM measurement.

[0203] In another possible implementation, the cell type of each cell configured in the second configuration information belongs to one of the following types:

[0204] Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS;

[0205] Type 2: Supports PDCCH and PDSCH;

[0206] Type 3: Supports SSB, CSI-RS, and TRS;

[0207] Type 4: Supports PDSCH;

[0208] Type 5: Does not support the reception of any signal.

[0209] In another possible implementation, the reference relationship includes a first cell referencing a second cell, where both the first cell and the second cell belong to the cells configured by the second configuration information.

[0210] Reusing Figure 10, in some other embodiments of this application, for example, the communication device shown in Figure 10 can be a network device or a component (e.g., a chip) in a network device, and the processing module 1001 and transceiver module 1002 in the communication device can respectively perform the following operations:

[0211] The transceiver module 1002 receives first information, which is used to indicate the frequency domain resource information supported by the terminal device;

[0212] The transceiver module 1002 receives and transmits second information, which is used to indicate information for frequency domain resource switching;

[0213] The processing module 1001 performs frequency domain resource switching based on the first information and the second information.

[0214] In the above method, the first information initially indicates the frequency domain resources supported by the terminal device. Then, the second information further specifies how to use the frequency domain resources indicated by the first information, effectively imposing further constraints on the supported frequency domain resources to obtain the final frequency domain resources supported by the terminal device. In other words, by combining the first and second information, flexible configuration of uplink and downlink capabilities can be achieved, supporting the decoupling of uplink and downlink capabilities, thereby better supporting the differentiated transmission needs of uplink and downlink services.

[0215] In one possible implementation, the frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, each of which is a portion of the first frequency band combination. This approach is for downlink frequency band combinations. Since the downlink transmission requirements of the terminal device are relatively small, it can further indicate, based on the downlink first frequency band combination indicated by the first information, that only a portion of the frequency domain resources in the first frequency band combination can be used simultaneously for reception. For example, synchronous reception can be performed through a separate second frequency band combination (belonging to a subset of the first frequency band combination), but different second frequency band combinations can be switched to achieve downlink transmission. This approach can meet the smaller downlink capability requirements of the terminal device.

[0216] In one possible implementation, the frequency domain resource information indicated by the first information includes a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, allowing switching between the third frequency band combination and the other frequency band combinations. This approach is for uplink frequency band combinations. Because the uplink transmission demand of terminal devices is relatively large, other frequency band combinations can be further indicated based on the third frequency band combination indicated by the first information, enabling the terminal device to switch between the third frequency band combination and other frequency band combinations to achieve uplink transmission. Using this approach can meet the greater uplink capability requirements of terminal devices.

[0217] Reusing Figure 10, in some other embodiments of this application, for example, the communication device shown in Figure 10 can be a network device or a component (e.g., a chip) in a network device, and the processing module 1001 and transceiver module 1002 in the communication device can respectively perform the following operations:

[0218] The transceiver module 1002 receives first report information, wherein the first report information includes one or more of the following: the number of first carriers that support parallel detection capability of control information, the number of second carriers that support parallel data reception and processing capability, and the number of third carriers that support downlink parallel measurement capability.

[0219] The transceiver module 1002 sends second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

[0220] In this method, the terminal device actively reports its downlink capability requirements. After the network device learns about the downlink capability requirements of the terminal device, it configures the appropriate cell type for the terminal device according to the downlink capability requirements to meet the downlink capability requirements of the terminal device. This method can realize the on-demand configuration of downlink capability, rather than the equal configuration of uplink and downlink capability for the terminal device. It not only fully meets the downlink capability requirements of the terminal, but also avoids resource waste.

[0221] In one possible implementation, the first reporting information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support concurrent data reception and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band. That is, the first reporting information is specific to a single frequency band, achieving smaller-granularity capability requirement reporting, thus enabling more refined frequency domain resource allocation.

[0222] In one possible implementation, the second configuration information includes the cell type of the configured cell and / or a reference relationship of first information between cells, the first information including timing synchronization or RRM measurement.

[0223] In one possible implementation, the cell type of each cell configured in the second configuration information belongs to one of the following types:

[0224] Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS;

[0225] Type 2: Supports PDCCH and PDSCH;

[0226] Type 3: Supports SSB, CSI-RS, and TRS;

[0227] Type 4: Supports PDSCH;

[0228] Type 5: Does not support the reception of any signal.

[0229] The specific descriptions of the transceiver module and processing module shown in the above embodiments are merely examples. For the specific functions or execution steps of the transceiver module and processing module, please refer to the above method embodiments, which will not be described in detail here.

[0230] The communication device according to the embodiments of this application has been described above. The possible product forms of the communication device are described below. Any product possessing the functions of the communication device described in FIG10 above falls within the protection scope of the embodiments of this application.

[0231] The following description is merely an example and does not limit the product form of the communication device in the embodiments of this application to this.

[0232] In one possible implementation, in the communication device shown in FIG10, the processing module 1001 can be one or more processors, and the transceiver module 1002 can be a transceiver, or the transceiver module 1002 can also be a transmitting module and a receiving module. The transmitting module can be a transmitter, and the receiving module can be a receiver. The transmitting module and the receiving module are integrated into one device, such as a transceiver. In the embodiments of this application, the processor and the transceiver can be coupled, etc., and the connection method of the processor and the transceiver is not limited in the embodiments of this application. In the process of executing the above method, the process of sending information in the above method can be the process of the processor outputting the above information. When outputting the above information, the processor outputs the above information to the transceiver so that the transceiver can transmit it. After the above information is output by the processor, it may need to undergo other processing before reaching the transceiver. Similarly, the process of receiving information in the above method can be the process of the processor receiving the input above information. When the processor receives the input information, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the aforementioned information, the information may need to undergo further processing before being input into the processor.

[0233] As shown in Figure 11, the communication device 110 includes one or more processors 1112 and transceivers 1110. Exemplarily, the transceiver 1110 is used to execute the functions or steps implemented by the transceiver module 1002 shown in Figure 10, and the processor 1112 is used to execute the functions or steps implemented by the processing module 1001 shown in Figure 10. Detailed descriptions of the processor 1112 and transceiver 1110 can be found in Figure 10 or the method embodiments shown above, and will not be elaborated further here.

[0234] The descriptions of the relevant steps and information in the above embodiments can be found in the descriptions of the method embodiments above, and will not be detailed here.

[0235] In various implementations of the communication device shown in Figure 11, the transceiver may include a receiver for performing a receiving function (or operation) and a transmitter for performing a transmitting function (or operation). The transceiver is also used to communicate with other devices / appliances via a transmission medium.

[0236] Optionally, the communication device 110 may further include one or more memories 1130 for storing program instructions and / or data. The memories 1130 are coupled to the processor 1112. The coupling in this embodiment is an indirect coupling or communication connection between devices, units, or modules, and can be electrical, mechanical, or other forms, used for information exchange between devices, units, or modules. The processor 1112 may operate in conjunction with the memories 1130. The processor 1112 may execute program instructions stored in the memories 1130. Optionally, at least one of the aforementioned memories may be included in the processor.

[0237] This embodiment does not limit the specific connection medium between the transceiver 1110, processor 1112, and memory 1130. In Figure 11, the memory 1130, processor 1112, and transceiver 1110 are connected via a bus 1140, indicated by a thick line. The connection methods between other components are merely illustrative and not intended to be limiting. The bus can be categorized as an address bus, data bus, control bus, etc. For ease of illustration, only one thick line is used in Figure 11, but this does not imply that there is only one bus or one type of bus.

[0238] In the embodiments of this application, the processor may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc., and can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly manifested as being executed by a hardware processor, or being executed by a combination of hardware and software modules within the processor.

[0239] In this application embodiment, the memory may include, but is not limited to, non-volatile memory such as hard disk drive (HDD) or solid-state drive (SSD), random access memory (RAM), erasable programmable read-only memory (EPROM), read-only memory (ROM), or compact disc read-only memory (CD-ROM), etc. Memory is any storage medium capable of carrying or storing program code having instruction or data structure forms, and capable of being read and / or written by a computer (such as the communication device shown in this application), but is not limited to this. The memory in this application embodiment may also be a circuit or any other device capable of implementing storage functions, used to store program instructions and / or data.

[0240] The processor 1112 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process the data of the software programs. The memory 1130 is mainly used to store software programs and data. The transceiver 1110 may include control circuitry and an antenna. The control circuitry is mainly used for converting baseband signals to radio frequency signals and processing radio frequency signals. The antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touchscreens, displays, and keyboards, are mainly used to receive user input data and output data to the user.

[0241] When the communication device is powered on, the processor 1112 can read the software program in the memory 1130, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be transmitted wirelessly, the processor 1112 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit processes the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 1112. The processor 1112 converts the baseband signal into data and processes the data.

[0242] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged remotely, independent of the communication device.

[0243] The communication device shown in this application embodiment may also have more components than those in Figure 11, and this application embodiment does not limit this. The methods executed by the processor and transceiver shown above are only examples, and the specific steps executed by the processor and transceiver can be referred to the methods described above.

[0244] In another possible implementation, in the communication device shown in FIG10, the processing module 1001 can be one or more logic circuits, and the transceiver module 1002 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver module 1002 can also be a transmitting module and a receiving module. The transmitting module can be an output interface, and the receiving module can be an input interface. The transmitting module and the receiving module are integrated into one module, such as an input / output interface. As shown in FIG12, the communication device shown in FIG12 includes a logic circuit 1201 and an interface 1202. That is, the above-mentioned processing module 1001 can be implemented with logic circuit 1201, and the transceiver module 1002 can be implemented with interface 1202. Among them, the logic circuit 1201 can be a chip, a processing circuit, an integrated circuit, or a system on chip (SoC) chip, etc., and the interface 1202 can be a communication interface, an input / output interface, a pin, etc. For example, FIG12 uses the above-mentioned communication device as a chip, which includes logic circuit 1201 and interface 1202.

[0245] In this embodiment, the logic circuit and the interface can also be coupled to each other. The specific connection method of the logic circuit and the interface is not limited in this embodiment. For example, the logic circuit 1201 can be used to execute the functions or steps implemented by the processing module 1001 shown in FIG. 10, and the interface 1202 can be used to execute the functions or steps implemented by the transceiver module 1002 shown in FIG. 10. For a detailed description of the logic circuit 1201 and the interface 1202, please refer to FIG. 10 or the method embodiment shown above, which will not be detailed here.

[0246] The above description of the communication device is only an example. For a detailed description of the communication device shown in Figure 12, please refer to the above method embodiment or Figure 10 or Figure 11. It will not be described in detail here.

[0247] The communication device shown in the embodiments of this application can implement the method provided in the embodiments of this application in hardware form, or it can implement the method provided in the embodiments of this application in software form, etc., and the embodiments of this application do not limit it in this way.

[0248] The descriptions of relevant steps and information in the above embodiments can be found in the method embodiments described above, and will not be detailed here. For the specific implementation methods of the embodiments shown in Figure 12, please also refer to the above embodiments, which will not be detailed here.

[0249] This application also provides a communication system, which includes a network device and a terminal device. The network device and the terminal device can interact to perform all or part of the steps in any of the foregoing method embodiments.

[0250] In addition, this application also provides a computer program for implementing the operations and / or processes performed by various communication devices in the method provided in this application.

[0251] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform the operations and / or processes performed by various communication devices in the methods provided in this application.

[0252] This application also provides a computer program product comprising computer code or a computer program that, when run on a computer, causes the operations and / or processes performed by various entities in the method provided in this application to be executed.

[0253] In the embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, devices, or units, or it may be an electrical, mechanical, or other form of connection.

[0254] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of this application.

[0255] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0256] If the integrated module is implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0257] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, include: Send a first message, which is used to indicate the supported frequency domain resource information; Send a second message, which indicates information for frequency domain resource switching; Frequency domain resource switching is performed based on the first information and the second information.

2. The method according to claim 1, characterized in that, The frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, wherein each of the multiple second frequency band combinations is a portion of the first frequency band combination.

3. The method according to claim 2, characterized in that, The second frequency band combination includes at least two downlink frequency bands, which are used for downlink transmission.

4. The method according to claim 2 or 3, characterized in that, The second information includes the identification information of the first frequency band combination.

5. The method according to any one of claims 2-4, characterized in that, The second information is specifically used to indicate that any first number of frequency bands in the first frequency band combination can be switched, wherein the first number is less than the total number of frequency bands included in the first frequency band combination.

6. The method according to any one of claims 2-4, characterized in that, The second information includes information on multiple combinations of second frequency bands.

7. The method according to any one of claims 2-4, characterized in that, The second information includes multiple frequency band switching groups, each containing at least two frequency bands, and the multiple frequency band switching groups can switch between each other.

8. The method according to claim 1, characterized in that, The first information indicates frequency domain resource information including a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, and the third frequency band combination and the other frequency band combinations can be switched.

9. The method according to claim 8, characterized in that, Each frequency band combination in the set of frequency band combinations includes at least two uplink frequency bands, which are used for uplink transmission.

10. The method according to claim 8 or 9, characterized in that, The second information includes the table index and / or row index corresponding to each frequency band combination in the frequency band combination set, or the second information includes the frequency band combination index corresponding to each frequency band combination in the frequency band combination set.

11. The method according to claim 8 or 9, characterized in that, The second information includes a first set of frequency bands contained in the frequency band combination set, and the second information is specifically used to indicate that a subset of the first set can be switched.

12. The method according to claim 1, characterized in that, The second information includes information on multiple uplink frequency band combinations and multiple downlink frequency band combinations. The multiple uplink frequency band combinations can be switched between each other, and the multiple downlink frequency band combinations can be switched between each other. Both the multiple uplink frequency band combinations and the multiple downlink frequency band combinations are part of the frequency bands in the supported frequency domain resources.

13. A communication method, characterized in that, include: Receive first information, which is used to indicate the frequency domain resource information supported by the terminal device; Receive and send second information, the second information being used to indicate information for frequency domain resource switching; Frequency domain resource switching is performed based on the first information and the second information.

14. The method according to claim 13, characterized in that, The frequency domain resource information indicated by the first information includes a first frequency band combination, and the second information is used to indicate multiple second frequency band combinations, wherein each of the multiple second frequency band combinations is a portion of the first frequency band combination.

15. The method according to claim 13, characterized in that, The first information indicates frequency domain resource information including a third frequency band combination, and the second information is specifically used to indicate a set of frequency band combinations, which includes the third frequency band combination and other frequency band combinations, and the third frequency band combination and the other frequency band combinations can be switched.

16. A communication method, characterized in that, include: Send first report information, wherein the first report information includes one or more of the following: a first number of carriers supporting parallel detection capability of control information, a second number of carriers supporting concurrent data reception and processing capability, and a third number of carriers supporting downlink parallel measurement capability; Receive second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

17. The method according to claim 16, characterized in that, The first report information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support data receiving and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band.

18. The method according to claim 16 or 17, characterized in that, The first report information includes the first quantity, the second quantity, and the third quantity, wherein the first quantity is less than or equal to the second quantity, and the third quantity is greater than or equal to the second quantity.

19. The method according to any one of claims 16-18, characterized in that, The second configuration information includes the cell type of the configured cell and / or the reference relationship between cells, wherein the reference relationship includes timing reference relationship and / or RRM measurement reference relationship.

20. The method according to claim 19, characterized in that, The cell type of each cell configured in the second configuration information belongs to one of the following types: Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS; Type 2: Supports PDCCH and PDSCH; Type 3: Supports SSB, CSI-RS, and TRS; Type 4: Supports PDSCH; Type 5: Does not support the reception of any signal.

21. The method according to claim 19, characterized in that, The reference relationship includes a first cell referencing a second cell, where both the first cell and the second cell belong to the cells configured by the second configuration information.

22. A communication method, characterized in that, include: Receive first report information, wherein the first report information includes one or more of the following: the number of first carriers that support parallel detection capability of control information, the number of second carriers that support parallel data reception and processing capability, and the number of third carriers that support downlink parallel measurement capability; Send second configuration information, wherein the second configuration information is used to configure the cell and is generated based on the first report information.

23. The method according to claim 22, characterized in that, The first report information specifically includes one or more of the following: the number of first carriers required to support parallel detection capability of control information within a frequency band, the number of second carriers required to support data receiving and processing capability within a frequency band, and the number of third carriers required to support downlink parallel measurement capability within a frequency band.

24. The method according to claim 22 or 23, characterized in that, The second configuration information includes the cell type of the configured cell and / or the reference relationship between cells, wherein the reference relationship includes timing reference relationship and / or RRM measurement reference relationship.

25. The method according to claim 24, characterized in that, The cell type of each cell configured in the second configuration information belongs to one of the following types: Type 1: Supports PDCCH, PDSCH, SSB, CSI-RS, and TRS; Type 2: Supports PDCCH and PDSCH; Type 3: Supports SSB, CSI-RS, and TRS; Type 4: Supports PDSCH; Type 5: Does not support the reception of any signal.

26. A communication device, characterized in that, The communication device includes a module for performing the method as described in any one of claims 1-12, 16-21; or, the communication device includes a processor for performing the method as described in any one of claims 13-15, 22-25.

27. A communication device, characterized in that, The communication device includes a module for performing the method as described in any one of claims 1-12, 16-21; or, the communication device includes a processor for performing the method as described in any one of claims 13-15, 22-25.

28. A communication device, characterized in that, Includes logic circuits and interfaces, wherein the logic circuits and interfaces are coupled; The interface is used for inputting and / or outputting information, and the logic circuit is used for performing the method as described in any one of claims 1-25.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program, which, when executed, performs the method as described in any one of claims 1-25.

30. A communication system, characterized in that, The method includes network devices and terminal devices, wherein the network devices are used to perform the method as described in any one of claims 13-15, 22-25, and the terminal devices are used to perform the method as described in any one of claims 1-12, 16-21.

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