Communication method, device and system

Abstract

The invention provides a communication method, device and system. The method comprises: a terminal device receiving configuration information, the configuration information being used for configuring the terminal device to communicate on K cells, K being a positive integer; the terminal device receives first indication information, the first indication information indicates a first capability, the first capability is related to the configuration information, and the first capability is at least one of a first frequency band combination, a first characteristic set or a first carrier characteristic set. According to the invention, the terminal device can obtain accurate communication configuration in time, thereby avoiding the abnormity that uplink and downlink reception is damaged, error codes and the like due to the fact that the information cannot be accurately aligned between the network device and the terminal device, and improving the communication quality.

Description

Technical Field

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

[0002] In wireless communication systems, terminals generally report their capabilities first, and the base station sends wireless configurations for carrying services to the terminal based on the terminal capabilities. Under 5G, terminal capabilities are very complex, including user equipment (UE) level, band (BAND) level, feature set (FS) level, component carrier feature set (FSPC) level, and band combination (BC) level. The capabilities reported by the terminal are very complex, but in current technology, the terminal cannot accurately know through downlink signaling configuration which capabilities the configuration sent by the base station is based on. When the terminal capabilities based on which the network configuration is expected to be sent by the terminal are inconsistent with the terminal capabilities based on which the network actually sends the configuration, it will cause uplink and downlink reception to be impaired and abnormalities such as bit errors, thereby affecting communication. Summary of the invention

[0003] The present application provides a communication method, device and system, which can improve communication quality.

[0004] In a first aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a chip or circuit for a terminal device, which is not limited in the present application. For ease of description, the following description is given by taking the execution by a terminal device as an example.

[0005] The method includes: a terminal device receives configuration information, the configuration information is used to configure the terminal device to communicate on K cells, and K is a positive integer; the terminal device receives first indication information, the first indication information indicates a first capability, the first capability is related to the configuration information, and the first capability is at least one of a first frequency band combination, a first feature set, or a first carrier feature set.

[0006] In some implementations, the K cells may be replaced by K frequency bands, and the configuration information is used to configure dynamic uplink transmission channel switching of the terminal device in the K frequency bands.

[0007] In this method, the terminal device can obtain accurate communication configuration in a timely manner, avoiding uplink and downlink reception damage, bit errors and other anomalies caused by the inability to accurately align the information between the network device and the terminal device, and can improve the communication quality.

[0008] In some implementations, before receiving the configuration information, the method also includes: the terminal device sends capability information, and the capability information includes at least one of the following: at least one frequency band combination supported by the terminal device; at least one feature set supported by the terminal device, the feature set including a downlink feature set and / or an uplink feature set, each feature set in the feature set corresponding to a frequency band entity in a frequency band combination; at least one carrier feature set supported by the terminal device, the carrier feature set including a carrier downlink feature set and / or a carrier uplink feature set, each carrier feature set in the carrier feature set corresponding to a carrier in a frequency band in a frequency band combination.

[0009] In some implementations, the first capability is the first frequency band combination, the first indication information indicates an identifier of the first frequency band combination, and the first frequency band combination belongs to at least one frequency band combination supported by the terminal device.

[0010] In some implementations, the first capability is the first feature set, the first indication information indicates an index of the first feature set, the index of the first feature set indicates a position of the first feature set in a first feature set combination, the first feature set combination is a feature set combination corresponding to the first frequency band combination, and the first feature set is a subset of at least one feature set supported by the terminal device.

[0011] In some implementations, the first capability is the first carrier characteristic set, the first indication information indicates an identifier of the first carrier characteristic set, the first carrier characteristic set is a first carrier downlink characteristic set and / or a first carrier uplink characteristic set, and the first carrier characteristic set is a subset of at least one carrier characteristic set supported by the terminal device.

[0012] In some implementations, the first carrier characteristic set belongs to a first carrier characteristic set combination, the first carrier characteristic set combination includes L carrier characteristic sets, the L is a positive integer, the first carrier characteristic set combination corresponds to a first cell, and the first cell belongs to the K cells.

[0013] In some implementations, the K cells correspond one-to-one to K carrier characteristic set combinations, and each of the K carrier characteristic set combinations includes one or more carrier characteristic sets.

[0014] In some implementations, L carrier characteristic sets correspond one-to-one to L carriers, the L carriers are candidate carriers used for communication in a first cell, the L carrier characteristic sets belong to a first carrier characteristic set combination, and the first carrier characteristic set combination corresponds to the first cell.

[0015] In some implementations, the L carrier uplink characteristic sets are arranged in a first order, which is the arrangement order of the L carriers in the first cell, and / or the L carrier characteristic sets are L downlink carrier characteristic sets, which are arranged in a second order, which is the arrangement order of the L downlink carriers in the first cell.

[0016] In this implementation, the carrier characteristic sets are arranged according to the order of the carriers, and the carrier characteristic set corresponding to a certain carrier can be determined according to the order without other indications, thus saving indication overhead.

[0017] In some implementations, the first indication information further indicates a first carrier corresponding to the first carrier characteristic set.

[0018] In some implementations, the capability information is first capability information, and the capability information includes a first identifier, and the first identifier is used to indicate that the capability information is the first capability information.

[0019] In this manner, the first identifier carried in the capability information enables the network device and the terminal device to determine the same capability information, thereby preventing the terminal device from being unable to determine corresponding capability information among multiple capability information, thereby improving the accuracy of the terminal in determining the first capability.

[0020] In a second aspect, a communication method is provided, which can be executed by a network device, or can also be executed by a chip or circuit used for a network device, which is not limited in this application. For ease of description, the following description is given by taking the execution by a network device as an example.

[0021] The method includes: a network device determines configuration information based on a first capability, wherein the first capability is at least one of a first frequency band combination, a first feature set, or a first carrier feature set, and the configuration information is used to configure a terminal device to communicate on K cells, where K is a positive integer; the network device sends the configuration information; and the network device sends first indication information, wherein the first indication information indicates the first capability.

[0022] In some implementations, before sending the configuration information, the method also includes: the network device receives capability information, the capability information including at least one of the following: at least one frequency band combination supported by the terminal device; at least one feature set supported by the terminal device, the feature set including a downlink feature set and / or an uplink feature set, each feature set in the feature set corresponding to a frequency band entity in a frequency band combination; at least one carrier feature set supported by the terminal device, the carrier feature set including a carrier downlink feature set and / or a carrier uplink feature set, each carrier feature set in the carrier feature set corresponding to a carrier in a frequency band in a frequency band combination.

[0023] In some implementations, the first capability is the first frequency band combination, the first indication information indicates an identifier of the first frequency band combination, and the first frequency band combination belongs to at least one frequency band combination supported by the terminal device.

[0024] The identifier of the first frequency band combination may indicate the position of the first frequency band combination in the at least one frequency band combination. The at least one frequency band combination may be presented in the form of a list or a set. For example, the identifier of the first frequency band combination may be an index in the frequency band combination list. Each frequency band combination in the frequency band combination list may correspond to an identifier (or index). The identifiers may be incremented in sequence according to the arrangement order of each frequency band combination table entry, for example, the identifier of the first frequency band combination is 1, the identifier of the second frequency band combination is 2, and so on.

[0025] Optionally, the frequency band combination list is a frequency band combination list supporting uplink transmission channel switching, and the identifier of the first frequency band combination indicates a position of the first frequency band combination in the frequency band combination list supporting uplink transmission channel switching.

[0026] Optionally, in a dual connection (DC) scenario, the frequency band combination list is a frequency band combination list reported by the terminal device in UE-MRDC-Capability. In an NR scenario, the frequency band combination list is a frequency band combination list reported by the terminal device in UE-NR-Capability.

[0027] In some implementations, the first capability is the first feature set, the first indication information indicates an index of the first feature set, the index of the first feature set indicates a position of the first feature set in a first feature set combination, the first feature set combination is a feature set combination corresponding to the first frequency band combination, and the first feature set is a subset of at least one feature set supported by the terminal device.

[0028] In some implementations, the first capability is the first carrier characteristic set, the first indication information indicates an identifier of the first carrier characteristic set, the first carrier characteristic set is a first carrier downlink characteristic set and / or a first carrier uplink characteristic set, and the first carrier characteristic set is a subset of at least one carrier characteristic set supported by the terminal device.

[0029] In some implementations, the first carrier characteristic set belongs to a first carrier characteristic set combination, the first carrier characteristic set combination includes L carrier characteristic sets, the L is a positive integer, the first carrier characteristic set combination corresponds to a first cell, and the first cell belongs to the K cells.

[0030] In some implementations, the K cells correspond one-to-one to K carrier characteristic set combinations, and each of the K carrier characteristic set combinations includes one or more carrier characteristic sets.

[0031] In some implementations, L carrier characteristic sets correspond one-to-one to L carriers, the L carriers are candidate carriers used for communication in a first cell, the L carrier characteristic sets belong to a first carrier characteristic set combination, and the first carrier characteristic set combination corresponds to the first cell.

[0032] In some implementations, the L carrier uplink characteristic sets are arranged in a first order, which is the arrangement order of the L carriers in the first cell, and / or the L carrier characteristic sets are L downlink carrier characteristic sets, which are arranged in a second order, which is the arrangement order of the L downlink carriers in the first cell.

[0033] In some implementations, the first indication information further indicates a first carrier corresponding to the first carrier characteristic set.

[0034] In some implementations, the method further includes: the capability information is first capability information, the capability information includes a first identifier, and the first identifier is used to indicate that the capability information is the first capability information.

[0035] It should be understood that the second aspect is an implementation method on the network device side corresponding to the first aspect, and the relevant explanations, supplements, possible implementation methods and descriptions of beneficial effects of the first aspect are also applicable to the second aspect and will not be repeated here.

[0036] In a third aspect, a communication method is provided. The method may be executed by a terminal device, or may be executed by a chip or circuit for a terminal device, which is not limited in the present application. For ease of description, the following description is given by taking the execution by a terminal device as an example.

[0037] The method includes: a terminal device receives configuration information, the configuration information is used to configure the terminal device to switch an uplink transmission channel or a downlink reception channel between frequency bands of a first frequency band pair, the first frequency band pair includes at least two frequency bands, and the configuration information includes at least one of the following:

[0038] an identifier of a frequency band included in the first frequency band pair;

[0039] a switching option for switching transmission channels between frequency bands of the first frequency band pair;

[0040] a switching time for switching transmission channels between frequency bands of the first frequency band pair;

[0041] the number of transmission channels for transmission channel switching between frequency bands of the first frequency band pair;

[0042] An identifier of a second frequency band affected by the switching of transmission channels between frequency bands of the first frequency band pair.

[0043] In this method, by indicating the switching time and other information of the transmission channel switching of the first frequency band pair in the configuration information of the network, it is possible to avoid inconsistent understanding of the transmission channel switching between the terminal and the network, and to avoid the terminal being unable to correctly decode the data blocks sent by the network when the switching time between the first frequency band pairs expected by the terminal is less than the switching time when the network dynamically schedules the transmission channel switching, thereby causing bit errors when the transmission channel is switched, thereby improving communication reliability.

[0044] The identifier of the frequency band included in the first frequency band pair indicates the position of the frequency band supporting dynamic switching in at least one frequency band pair. The at least one frequency band pair may be in the form of a list or a set. For example, the identifier of the frequency band included in the first frequency band pair may be the identifier (or index) of the frequency band included in the first frequency band pair in the frequency band pair list, which is used to indicate the position of the frequency band included in the first frequency band pair in the frequency band pair list. The identifier may be incremented in sequence according to the arrangement order of each frequency band combination table item, for example, the identifier of the first frequency band combination is 1, the identifier of the second frequency band combination is 2, and so on.

[0045] Optionally, the frequency band combination list is a frequency band combination list supporting uplink transmission channel switching, and the identifier of the first frequency band combination indicates a position of the first frequency band combination in the frequency band combination list supporting uplink transmission channel switching.

[0046] Optionally, in a dual connection (DC) scenario, the above-mentioned frequency band combination list is a frequency band combination list reported by the terminal device in UE-MRDC-Capability. In an NR scenario, the above-mentioned frequency band combination list is a frequency band combination list reported by the terminal device in UE-NR-Capability.

[0047] In certain implementations, when the transmission channel switching is uplink transmission channel switching, the second frequency band is a frequency band whose downlink reception is affected by uplink transmission channel switching between frequency bands of the first frequency band pair.

[0048] In certain implementations, when the transmission channel switching is uplink transmission channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched uplink transmission switchedUL, or dual uplink transmission dualUL; or,

[0049] In the case where the transmission channel switching is downlink receiving channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched downlink transmission switchedDL, or dual downlink transmission dualDL.

[0050] In some implementations, before receiving the configuration information, the method further includes: the terminal device sending capability information, where the capability information includes a transmission channel switching capability supported by the terminal device.

[0051] In a fourth aspect, a communication method is provided, which can be executed by a network device, or can also be executed by a chip or circuit used for a network device, which is not limited in this application. For ease of description, the following description is taken as an example of execution by a network device.

[0052] The network device sends configuration information, where the configuration information is used to configure the terminal device to switch an uplink transmission channel or a downlink reception channel between frequency bands of a first frequency band pair, where the first frequency band pair includes at least two frequency bands, and the configuration information includes at least one of the following:

[0053] an identifier of a frequency band included in the first frequency band pair;

[0054] a switching option for switching transmission channels between frequency bands of the first frequency band pair;

[0055] a switching time for switching transmission channels between frequency bands of the first frequency band pair;

[0056] the number of transmission channels for transmission channel switching between frequency bands of the first frequency band pair;

[0057] An identifier of a second frequency band affected by the switching of transmission channels between frequency bands of the first frequency band pair.

[0058] In certain implementations, when the transmission channel switching is uplink transmission channel switching, the second frequency band is a frequency band whose downlink reception is affected by uplink transmission channel switching between frequency bands of the first frequency band pair.

[0059] In certain implementations, when the transmission channel switching is uplink transmission channel switching, the switching option of the transmission channel switching between frequency bands of the first frequency band pair is switched uplink transmission switchedUL, or dual uplink transmission dualUL; or

[0060] In the case where the transmission channel switching is downlink receiving channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched downlink transmission switchedDL, or dual downlink transmission dualDL.

[0061] In some implementations, before sending the configuration information, the method further includes:

[0062] The network device receives capability information, wherein the capability information includes a transmission channel switching capability supported by the terminal device; and the network device determines the configuration information based on the capability information.

[0063] It should be understood that the fourth aspect is an implementation method on the network device side corresponding to the third aspect, and the relevant explanations, supplements, possible implementation methods and descriptions of beneficial effects of the third aspect are also applicable to the fourth aspect and will not be repeated here.

[0064] In a fifth aspect, an embodiment of the present application provides a communication device, comprising a transceiver unit and a processing unit, wherein the communication device is used to execute the method of the first aspect, or the third aspect, or any possible method in the first aspect, or any possible method in the third aspect, or all possible methods in the first aspect, or all possible methods in the third aspect.

[0065] In a sixth aspect, an embodiment of the present application provides a communication device, comprising a transceiver unit and a processing unit, wherein the communication device is used to execute the method of the second aspect, or the fourth aspect, or any possible method in the second aspect, or any possible method in the fourth aspect, or all possible methods in the second aspect, or all possible methods in the fourth aspect.

[0066] In the seventh aspect, an embodiment of the present application provides a communication device, including an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver module in the fifth aspect, and the processor is used to implement the function of the processing module in the fifth aspect.

[0067] In an eighth aspect, an embodiment of the present application provides a communication device, comprising an interface circuit and a processor, wherein the interface circuit is used to implement the function of the transceiver module in the sixth aspect, and the processor is used to implement the function of the processing module in the sixth aspect.

[0068] In the ninth aspect, an embodiment of the present application provides a computer-readable medium storing a program code for execution on a terminal device, the program code comprising instructions for executing the method of the first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.

[0069] In the tenth aspect, an embodiment of the present application provides a computer-readable medium storing a program code for execution by a network device, the program code comprising instructions for executing the method of the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.

[0070] In the eleventh aspect, a computer program product storing computer-readable instructions is provided, which, when the computer-readable instructions are executed on a computer, causes the computer to execute the method of the first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.

[0071] In the twelfth aspect, a computer program product storing computer-readable instructions is provided, which, when the computer-readable instructions are executed on a computer, enables the computer to execute the method of the above-mentioned second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.

[0072] In the thirteenth aspect, a communication system is provided, which includes a method for implementing the above-mentioned first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect, the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect, and a device with various possible designed functions.

[0073] In a fourteenth aspect, a processor is provided, which is coupled to a memory and is used to execute the method of the above-mentioned first aspect, or the third aspect, or any possible manner in the first aspect, or any possible manner in the third aspect, or all possible manners in the first aspect, or all possible manners in the third aspect.

[0074] In the fifteenth aspect, a processor is provided, which is coupled to a memory and is used to execute the method of the second aspect, or the fourth aspect, or any possible manner in the second aspect, or any possible manner in the fourth aspect, or all possible manners in the second aspect, or all possible manners in the fourth aspect.

[0075] In a sixteenth aspect, a chip system is provided, the chip system includes a processor and may also include a memory for executing a computer program or instruction stored in the memory, so that the chip system implements the method in any of the first aspect, the second aspect, the third aspect, or the fourth aspect, and any possible implementation of any aspect. The chip system may be composed of a chip, or may include a chip and other discrete devices.

[0076] In the seventeenth aspect, a communication method is provided, the method comprising: a network device determines configuration information based on a first capability, the first capability being at least one of a first frequency band combination, a first feature set, or a first carrier feature set, the configuration information being used to configure a terminal device to communicate on K cells, where K is a positive integer; the network device sends the configuration information to the terminal device; the network device sends first indication information to the terminal device, the first indication information indicating the first capability.

[0077] In an eighteenth aspect, a communication method is provided, the method comprising: a network device sending configuration information to a terminal device, the configuration information being used to configure the terminal device to switch an uplink transmission channel or a downlink reception channel between frequency bands of a first frequency band pair, the first frequency band pair comprising at least two frequency bands, and the configuration information comprising at least one of the following:

[0078] an identifier of a frequency band included in the first frequency band pair;

[0079] a transmission type of transmission channel switching between frequency bands of the first frequency band pair;

[0080] a switching time for switching transmission channels between frequency bands of the first frequency band pair;

[0081] An identifier of a second frequency band affected by the switching of transmission channels between frequency bands of the first frequency band pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0082] Figure 1 A system architecture applicable to an embodiment of the present application is shown.

[0083] Figure 2 A schematic diagram of a communication method is shown.

[0084] Figure 3 A schematic diagram of the corresponding relationship between a characteristic set and a frequency band combination is shown.

[0085] Figure 4 A schematic diagram of a communication method is shown.

[0086] Figure 5 A flowchart diagram showing several communication methods is shown.

[0087] Figure 6A schematic flow chart of two communication methods is shown.

[0088] Figure 7 A flowchart of yet another communication method is shown.

[0089] Figure 8 A schematic block diagram of a communication device is shown.

[0090] Fig. 9 A schematic block diagram of yet another communication device is shown. DETAILED DESCRIPTION

[0091] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0092] Figure 1 FIG. 1 is a schematic diagram of the architecture of a communication system 1000 used in an embodiment of the present application. Figure 1 As shown, the communication system includes a wireless access network 100 and a core network 200. Optionally, the communication system 1000 may also include the Internet 300. The wireless access network 100 may include at least one wireless access network device (such as Figure 1 110a and 110b), and may further include at least one terminal (such as Figure 1 120a-120j in the figure). The terminal is connected to the wireless access network device by wireless means, and the wireless access network device is connected to the core network by wireless or wired means. The core network device and the wireless access network device can be independent and different physical devices, or the functions of the core network device and the logical functions of the wireless access network device can be integrated on the same physical device, or part of the functions of the core network device and part of the functions of the wireless access network device can be integrated on one physical device. Terminals and wireless access network devices can be connected to each other by wired or wireless means. Figure 1 This is just a schematic diagram. The communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices. Figure 1 Not drawn in.

[0093] The wireless access network equipment may be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in the fifth generation (5G) mobile communication system, a next generation base station in the sixth generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it may also be a module or unit that completes part of the functions of a base station, for example, it may be a central unit (CU) or a distributed unit (DU). The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and may also complete the functions of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control (MAC) layer of the base station, and may also complete the functions of part or all of the physical layer. For the specific description of each of the above protocol layers, please refer to the relevant technical specifications of the 3rd generation partnership project (3GPP). The wireless access network device may be a macro base station (such as Figure 1 110a), or a micro base station or an indoor station (such as Figure 1 110b), may also be a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the wireless access network device. For ease of description, the following description takes a base station as an example of a wireless access network device.

[0094] The terminal may also be referred to as a terminal device, user equipment (UE), mobile station, mobile terminal, etc. The terminal can be widely used in various scenarios, for example, device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IOT), virtual reality, augmented reality, industrial control, automatic driving, telemedicine, smart grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a wearable device, a vehicle, a drone, a helicopter, an airplane, a ship, a robot, a mechanical arm, a smart home device, etc. The embodiments of the present application do not limit the specific technology and specific device form adopted by the terminal. The following description takes the terminal as an example of a wireless terminal device.

[0095] Base stations and terminals can be fixed or movable. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on airplanes, balloons, and artificial satellites. The embodiments of this application do not limit the application scenarios of base stations and terminals.

[0096] The roles of the base station and the terminal can be relative, for example, Figure 1 The helicopter or drone 120i in the figure can be configured as a mobile base station. For the terminal 120j that accesses the wireless access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, 110a and 120i communicate through the wireless air interface protocol. Of course, 110a and 120i can also communicate through the interface protocol between base stations. In this case, relative to 110a, 120i is also a base station. Therefore, base stations and terminals can be collectively referred to as communication devices. Figure 1 110a and 110b in the figure may be referred to as communication devices having base station functions. Figure 1 120a-120j in the figure can be called communication devices with terminal functions.

[0097] Base stations and terminals, base stations and base stations, and terminals and terminals can communicate through authorized spectrum, unauthorized spectrum, or both; they can communicate through spectrum below 6 gigahertz (GHz), spectrum above 6 GHz, or spectrum below 6 GHz and spectrum above 6 GHz. The embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0098] In the embodiments of the present application, the functions of the base station may also be performed by a module (such as a chip) in the base station, or by a control subsystem including the base station function. The control subsystem including the base station function here may be a control center in the above-mentioned application scenarios such as smart grid, industrial control, smart transportation, and smart city. The functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or by a device including the terminal function.

[0099] The technical solution provided in the embodiment of the present application can be applied to wireless communication between communication devices. Wireless communication between communication devices may include: wireless communication between a base station and a terminal, wireless communication between base stations, and wireless communication between terminal devices. In the embodiment of the present application, the term "wireless communication" may also be referred to as "communication", and the term "communication" may also be described as "data transmission", "information transmission" or "transmission".

[0100] It can be understood that in the embodiments of the present application, the physical downlink share channel (PDSCH), the physical downlink control channel (PDCCH) and the physical uplink share channel (PUSCH) are merely examples of downlink data channels, downlink control channels and uplink data channels, respectively. In different systems and different scenarios, data channels and control channels may have different names, and the embodiments of the present application do not limit this.

[0101] In wireless communication systems, terminals generally report their capabilities first, and the base station sends wireless configurations for carrying services to the terminals based on the terminal capabilities. Under 5G, terminal capabilities are very complex, including UE-level, BAND-level, feature set (FS)-level, feature set per component-carrier (FSPC)-level capabilities, and band combination (BC)-level capabilities. One BC contains multiple bands, each band can have multiple FS-level capabilities, and each FS can contain multiple FSPC capabilities. There are various types of BCs, and each type supports a maximum of 65,536 BCs. The type of BC may be BC for NR independent networking (Stand Alone, SA) (exemplarily, reported in the suppportedBandCombinationList information element in UE-NR-Capability), BC for MR-DC (exemplarily, reported in the suppportedBandCombinationList information element in UE-MRDC-Capability), and BC for uplink selection (exemplarily, reported in the supportedBandCombinationList-UplinkTxSwitch information element).

[0102] When configuring carrier aggregation or dual connectivity, the base station will send configurations to the terminal based on the capabilities of the BC reported by the terminal, and then comprehensively consider the terminal-level capabilities and BAND-level capabilities. For example, for dynamic uplink transmit switching Uplink Txswitching, the terminal will report the BC that supports uplink transmit switching. Each BC for uplink transmit switching includes at least two frequency bands. The terminal will also report the switching time for dynamic uplink switching between a pair of frequency bands before and after the switching. During the switching time, the terminal will not perform uplink transmission; the terminal will also report switching options (switch uplink switch UL or dual uplink dual UL) and other capabilities. When configuring dynamic uplink antenna switching, the base station will indicate the frequency band for uplink transmit switching in the Radio Resource Control (RRC) configuration, and dynamically schedule uplink transmit switching through underlying signaling (such as downlink control information (DCI)). The terminal determines how to perform uplink antenna switching based on the RRC configuration information. However, since the terminal may report multiple BCs, multiple BCs may contain the same frequency band pairs that support uplink transmission switching, but these frequency band pairs have different switching times in different BCs. Therefore, the terminal needs to align with the base station to determine the uplink transmission switching configured by the base station based on the capability of the BC, thereby avoiding the inconsistency between the BC capability applied when the terminal expects the base station to send down the configuration and the BC capability actually applied when the base station is configured, resulting in the terminal expecting the switching time scheduled by the base station to be less than the switching time actually scheduled by the base station, resulting in the terminal being unable to correctly decode the data when dynamic switching occurs.

[0103] For another example, considering the protection of the underlying hardware, the terminal needs to perform certain capability checks on the base station configuration, that is, to ensure that the base station configuration meets the capabilities reported by the terminal. Therefore, the terminal also needs to know which group of BC, FS, or FSPC the base station is based on to issue the configuration.

[0104] The BC capabilities reported by the terminal are very complex, and it is impossible to accurately match a unique BC through downlink signaling configuration. The following example briefly explains this.

[0105] Terminal reporting capability:

[0106]

[0107] The carrier aggregation (CA) combination configured by the base station is: PCell (bandA) + SCell #1 (bandB) + SCell #2 (bandC)

[0108] Since the CA combination {bandA+bandB+bandC} configured by the base station can be obtained from the above BC1 and BC2, the base station can configure the CA combination {bandA+bandB+bandC} according to the capability of BC#1, and can also configure the CA combination {bandA+bandB+bandC} according to the capability of BC#2. The terminal cannot uniquely determine the BC capability based on which the base station sends the configuration, and therefore cannot align the switching time of the uplink transmission switching with the base station, which will cause damage to the uplink and downlink reception, resulting in abnormalities such as bit errors.

[0109] In view of this, the present application proposes a communication method, which enables a terminal to accurately obtain the base station configuration to avoid affecting the communication.

[0110] It should be understood that the transmission channel (transmitter, TX) in this application: the radio frequency (RF) transmission channel is referred to as the transmission channel, which is a physical concept. The transmission channel can receive the baseband signal from the baseband chip, perform radio frequency processing (such as up-conversion, amplification and filtering) on ​​the baseband signal to obtain a radio frequency signal, and finally radiate the radio frequency signal into space through the antenna. Specifically, the transmission channel may include one or more electronic devices such as an antenna switch, an antenna tuner, a low noise amplifier (LNA), a power amplifier (PA), a mixer, a local oscillator (LO), and a filter. These electronic devices can be integrated into one or more chips as needed. The antenna can sometimes also be considered as part of the transmission channel.

[0111] In an embodiment of the present application, the transmitting channel can also be replaced by Tx, antenna, RF, RF chain, transmitting port, number of RF chains, number of transmission layers, maximum number of transmission layers, maximum number of transmission layers supported, receiving channel or any combination thereof.

[0112] like Figure 2 As shown, the method comprises the following steps:

[0113] 210. The base station sends first indication information to the terminal, and correspondingly, the terminal receives the first indication information.

[0114] The first indication information indicates a first capability, which is at least one of a first band combination (BC), a first feature set (FS), or a first carrier feature set.

[0115] The first capability may be a first frequency band combination, which belongs to at least one frequency band combination supported by the terminal.

[0116] For example, the at least one frequency band combination may be BC1, BC2 and BC3 mentioned above, and the first capability is BC1.

[0117] In a possible implementation, the first indication information indicates the identifier of the first frequency band combination. In a frequency band combination set, the identifier of the frequency band combination can uniquely identify a frequency band combination. For example, the frequency band combination set includes frequency band combination A, frequency band combination B, and frequency band combination C, where the identifier of frequency band combination A is 1, the identifier of frequency band combination B is 2, and the identifier of frequency band combination C is 3. When the first indication information indicates the identifier of a frequency band combination in a frequency band combination set, it can uniquely indicate a frequency band combination in the frequency band combination set. For example, the first indication information indicates identifier 2, which indicates frequency band combination B.

[0118] The above-mentioned band combination set may also be a band combination list (BC List), and a band combination list includes multiple band combinations. At least one band combination supported by the terminal may be a band combination list. The band combination list supported by the terminal may be determined from multiple band combination lists. For example, the terminal determines the band combination list described in the first band combination from band combination list A, band combination list B, or band combination list C, such as band combination list A. In one possible manner, the terminal selects a corresponding band combination list from multiple band combination lists according to current communication requirements. For example, if the current wireless communication access technology is NR, the terminal determines the first band combination according to the band combination list applicable to NR; if the current wireless communication access technology is MRDC, the terminal determines the first band combination according to the band combination list applicable to MRDC; if the current network is configured with uplink transmission switching, the terminal determines the first band combination according to the band combination list applicable to uplink transmission switching.

[0119] In other words, the identifier of the first frequency band combination may indicate the position of the first frequency band combination in the at least one frequency band combination. The at least one frequency band combination may be presented in the form of a list or a set. For example, the identifier of the first frequency band combination may be an index in the frequency band combination list. Each frequency band combination in the frequency band combination list may correspond to an identifier (or index) to indicate the position of the corresponding frequency band combination in the frequency band combination list. The identifiers may be incremented in sequence according to the arrangement order of each frequency band combination table item, for example, the identifier of the first frequency band combination is 1, the identifier of the second frequency band combination is 2, and so on. Different identifiers correspond to different frequency band combination lists. In other words, the frequency band combination lists may also be distinguished by identifiers.

[0120] Optionally, the first indication information also indicates the identifier of the frequency band combination list. The identifier of the frequency band combination list and the identifier of the frequency band combination can uniquely determine a frequency band combination. For example, the identifier of the frequency band combination list A is A, which includes 10 frequency band combinations, and the identifiers are 1 to 10 respectively; the identifier of the frequency band combination list B is B, which includes 12 frequency band combinations, and the identifiers are 1 to 12 respectively. If the first indication information only indicates the identifier of the frequency band combination, such as 8, there is a frequency band combination identified as 8 in both frequency band combination lists. When the first indication information indicates identifier A and identifier 8, it can uniquely indicate the frequency band combination identified as 8 in the frequency band combination list A.

[0121] It should be understood that the above-mentioned identifier can be replaced with the index. For example, the identifier of the first frequency band combination can be replaced with the index of the first frequency band combination. The present application is not limited to this. For example, any method with a distinguishing function can be applied to the identifier of the above-mentioned frequency band combination and / or frequency band combination list.

[0122] Optionally, before the base station sends the first indication information, the base station may obtain capability information of the terminal, which may come from the terminal or from other access network devices or core network devices, that is, capability information from the terminal forwarded by other access network devices or core network devices. The capability information includes at least one frequency band combination supported by the terminal. That is, the terminal reports a list of supported frequency band combinations to the base station.

[0123] It should be understood that the base station that sends the first indication information and the base station that obtains the terminal capability information may be the same base station or may be different base stations.

[0124] Optionally, in a dual connection (EUTRA-NR Dual Connection, EN-DC) scenario, the frequency band combination list is a frequency band combination list reported by the terminal device in UE-MRDC-Capability. In an NR scenario, the frequency band combination list is a frequency band combination list reported by the terminal device in UE-NR-Capability.

[0125] Optionally, the frequency band combination list is a frequency band combination list supporting uplink transmission channel switching, and the identifier of the first frequency band combination indicates a position of the first frequency band combination in the frequency band combination list supporting uplink transmission channel switching.

[0126] The following is an example of first indication information when the first capability is a first frequency band combination.

[0127] An example of the first indication information is as follows:

[0128] bandCombinationIndex BandCombinationIndex,

[0129] This field indicates the index of the frequency band combination, that is, the index of the frequency band combination in the frequency band combination list (BCList) reported by the BC reference terminal in the capability information configured by the base station.

[0130] Among them, the frequency band combination list has the following versions:

[0131] When uplinkTxSwitching is not configured in SA, BCList corresponds to supportedBandCombinationList in UE-NR-Capability.

[0132] When SA configures uplinkTxSwitching, BCList corresponds to supportedBandCombinationList-UplinkTxSwitch-r16 in UE-NR-Capability.

[0133] When uplinkTxSwitching is not configured in MRDC, BCList corresponds to supportedBandCombinationList in UE-MRDC-Capability.

[0134] When uplinkTxSwitching is configured in MRDC, BCList corresponds to supportedBandCombinationList-UplinkTxSwitch-r16 in UE-MRDC-Capability.

[0135] That is, BCList is related to NR, MRDC, and whether uplinkTxSwitching is configured.

[0136] The aforementioned capability information is the first capability information, and the capability information includes a first identifier, which is used to indicate that the capability information is the first capability information. A possible scenario is that when the terminal has a capability update, it will trigger the base station to re-query and report the terminal capability, but the capability reported by the terminal may not be sent to other network devices in time. When the terminal moves between base stations, such as from the first access network device to the second access network device, if the second access network device fails to obtain the latest terminal capability information in time, and uses the capability information before the capability update, this will cause the frequency band combination determined by the second access network device to be different from the frequency band combination determined by the terminal according to the identifier of the frequency band combination indicated in the configuration information. For example, due to changes in the number and arrangement order of the frequency band combinations in the frequency band combination list, the frequency band combination corresponding to the same identifier in the frequency band combination list before and after the capability update has changed. For example, the total number of identifiers included in the capability information is 32, the identifier of the initial terminal capability information is 0, and the identifier increases by 1 when the terminal capability changes. Capability containers of different access technologies can correspond to different identifiers.

[0137] Possible implementations of the capability information reported by the terminal to the base station are as follows:

[0138] UE-NR-Capability::=SEQUENCE{

[0139] …

[0140] versionIndication INTEGER (0…31), UE capability version information.

[0141] }

[0142] or,

[0143] UE-MRDC-Capability::=SEQUENCE{

[0144] …

[0145] versionIndication INTEGER (0…31), UE capability version information.

[0146] }

[0147] Among them, versionIndication is an example of the first identifier.

[0148] The first capability may also be a first characteristic set.

[0149] The term “feature” refers to the functions and characteristics of communication resources used to transmit data in a wireless communication system to meet specific communication requirements.

[0150] For example, a feature set may cover multiple aspects, such as modulation mode, coding method, modulation rate, spectrum efficiency, multiple access technology, etc. These functions and features are crucial to ensuring communication quality, maximizing bandwidth utilization, and providing different quality of service.

[0151] Optionally, the feature may be a carrier feature or a feature of a frequency band in a frequency band combination. That is, the feature set may be a carrier feature set or a feature set of a frequency band in a frequency band combination. In this article, for the purpose of distinction, a feature set (Feature Set) corresponds to a set of capability parameters of a frequency band entity (band entry) in a frequency band combination, and a carrier feature set (Feature Set PerCC) corresponds to a set of capability parameters of a carrier on a frequency band entity in a frequency band combination.

[0152] The first feature set belongs to at least one feature set supported by the terminal. In other words, the first feature set is a subset of at least one feature set supported by the terminal. Each feature set in the at least one feature set corresponds to a band entry in a band combination (BC).

[0153] Figure 3 A schematic diagram of the corresponding relationship between a characteristic set and a frequency band combination is shown.

[0154] As shown in the figure, a frequency band combination BC1 includes three frequency band entities, namely band A, band B, and band C. Each frequency band entity corresponds to at least one feature set. For example, band A corresponds to FSUL-1 (feature set uplink, FSUL) and FSDL-5 (feature set downlink, FSDL), or FSUL-6 and FSDL-10; band B corresponds to FSUL-2 and FSDL-2, or FSUL-2 and FSDL-7, or FSUL-2 and FSDL-8; band B corresponds to FSUL-0 and FSDL-3, or FSUL-0 and FSDL-8, FSUL-0 and FSDL-0.

[0155] FSDL is the downlink feature set feature set, which can be used for downlink transmission. FSUL is the uplink feature set feature set uplink, which can be used for uplink transmission. The uplink feature set and downlink feature set corresponding to each frequency band entity are collectively referred to as feature sets. That is, the first feature set includes an uplink feature set and a downlink feature set. FSUL-1 and FSDL-5, that is, in the first row FS, the uplink FS and downlink FS of bandA are identified as 1 and 5 in the FSUL set and FSDL set, respectively.

[0156] For BC1, its corresponding feature set combination includes three rows of FS, each row of FS includes at least one pair of downlink / uplink feature sets, and each pair of downlink / uplink feature sets corresponds to a frequency band entity in BC#1. For example, the first row includes feature sets FSUL-1 and FSDL-5, FSUL-2 and FSDL-2, and FSUL-0 and FSDL-3, corresponding to band A, band B, and band C respectively. A BC can have multiple rows of FS, corresponding to the capabilities of different feature sets of each frequency band entity. For example, in the second row, the feature sets are FSUL-6 / FSDL-10, FSUL-2 / FSDL-7, and FSUL-0 / FSDL-8, corresponding to another set of capabilities of bandA, bandB, and bandC respectively.

[0157] In a possible implementation, the first indication information indicates the index (or identifier) ​​of the first feature set, and the index of the first feature set indicates the position of the first feature set in the first feature set combination. The first feature set combination is a feature set combination corresponding to the first frequency band combination. That is, the first feature set is used to determine a pair of downlink / uplink feature sets corresponding to each frequency band in the frequency band combination. For example, if the index of the first feature set is 1, it indicates that the feature set corresponding to bandA in BC#1 is FSUL-1 and FSDL-5, the feature set corresponding to bandB is FSUL-2 and FSDL-2, and the feature set corresponding to bandC is FSUL-0 and FSDL-3. In other words, when the first indication information indicates index 1, it indicates the first row FS.

[0158] It should be understood that the feature set in the above example includes a downlink feature set and an uplink feature set. However, it is not limited thereto. For example, the feature set includes a downlink feature set, or the feature set includes an uplink feature set. That is, the feature set in the present application includes an uplink feature set and / or a downlink feature set.

[0159] Specifically, an example of the first indication information is as follows:

[0160] featureSetEntryIndex

[0161] This field indicates which row of FS in the FSC corresponding to the BC the FS of the base station refers to. That is, the first indication information indicates the position of the first feature set in the first feature set combination. Further, the first capability may be a first carrier feature set (Feature set per CC). The first carrier feature set is a subset of at least one carrier feature set supported by the terminal. The first carrier feature set is a first carrier downlink feature set and / or a first carrier uplink feature set.

[0162] The first carrier characteristic set belongs to a first carrier characteristic set combination. The first carrier characteristic set combination includes L carrier characteristic sets, where L is a positive integer, and the first carrier characteristic set combination corresponds to a first cell. The first cell is a cell configured for communication by the terminal. In other words, the first cell is a service cell for the terminal. There may be multiple cells configured for communication by the terminal, such as K cells, where K is a positive integer. The first cell belongs to the K cells.

[0163] The K cells correspond one-to-one to the K carrier characteristic set combinations, wherein each carrier characteristic set combination includes one or more carrier characteristic sets.

[0164] In one possible manner, each of the K carrier characteristic set combinations is arranged in a preset order, and the preset order is the arrangement order of the K cells. For example, K takes a value of 3, and the three cells are arranged in the order of cell A, cell B, and cell C. The three carrier characteristic set combinations are carrier characteristic set combination A, carrier characteristic set combination B, and carrier characteristic set combination C, respectively, wherein carrier characteristic set combination A corresponds to cell A, carrier characteristic set combination B corresponds to cell B, and carrier characteristic set combination C corresponds to cell C. Alternatively, the three cells are arranged in the order of PCell, SCell#1, and SCell#2, and the three carrier characteristic set combinations are carrier characteristic set combination A, carrier characteristic set combination B, and carrier characteristic set combination C, respectively, corresponding to PCell, SCell#1, and SCell#2.

[0165] The arrangement order of the cells may be primary cells first and secondary cells later, wherein the arrangement order of the secondary cells may be in ascending order (i.e., arranged from small to large) or descending order (i.e., arranged from large to small) of the secondary cell index configured by the network.

[0166] In another possible manner, L carrier characteristic sets correspond one-to-one to L carriers, and the L carriers are candidate carriers used for communication in the first cell. In other words, the L carriers are configured for the terminal to communicate in the first cell. The terminal may use some of the carriers, or use all of the L carriers to communicate in the first cell. For example, if a cell corresponds to two uplink carriers, namely, a supplementary uplink (supplementary UL) and a normal uplink (normal UL, NUL), then the carrier characteristic set combination corresponding to the cell includes 2 carriers, corresponding one-to-one to NUL and SUL.

[0167] The above L carrier characteristic sets belong to the first carrier characteristic set combination, and the first carrier characteristic set combination corresponds to the first cell. That is, the first cell corresponds to the carrier characteristic set combination, and the carrier characteristic set combination includes multiple carrier characteristic sets, and the multiple carrier characteristic sets correspond to multiple carriers one by one. In other words, the carrier characteristic set is per CC level.

[0168] For example, L takes a value of 3, and the three carriers are CC1, CC2, and CC3, respectively. The first carrier characteristic set combination includes three carrier characteristic sets, namely, carrier characteristic set 1, carrier characteristic set 2, and carrier characteristic set 3. Among them, carrier characteristic set 1 corresponds to CC1, carrier characteristic set 2 corresponds to CC2, and carrier characteristic set 3 corresponds to CC3. This correspondence can also be understood as that the carrier characteristic set is a characteristic set of the carrier. For example, carrier characteristic set 1 is a characteristic set of CC1, indicating the function or characteristic of CC1.

[0169] In a possible implementation, the carrier characteristic set may be an uplink carrier characteristic set or a downlink carrier characteristic set. The L uplink carrier characteristic sets are arranged in a first order, which is the arrangement order of the L carriers in the first cell, and the L downlink carrier characteristic sets are arranged in a second order, which is the arrangement order of the L downlink carriers in the first cell. That is, the carrier characteristic sets are arranged in the order of the carriers.

[0170] For example, L takes a value of 4, the four carriers are carrier B, carrier A, carrier C, and carrier D, and the four carrier characteristic sets are carrier characteristic set 1, carrier characteristic set 2, carrier characteristic set 3, and carrier characteristic set 4. Among them, carrier characteristic set 1 corresponds to carrier B, carrier characteristic set 2 corresponds to carrier A, carrier characteristic set 3 corresponds to carrier C, and carrier characteristic set 4 corresponds to carrier D.

[0171] For another example, a cell corresponds to two uplink carriers, namely NUL and SUL, and the first order is NUL first and then SUL. Then, carrier characteristic set 1 corresponds to NUL, and carrier characteristic set 2 corresponds to SUL.

[0172] Optionally, the first indication information further indicates a carrier corresponding to the first carrier characteristic set, that is, the first carrier. For example, the first indication information may indicate an index of the first carrier.

[0173] The above-mentioned feature set may also be a cell feature set. For example, the first capability is a first cell feature set. The first cell feature set corresponds to the first cell. The feature set corresponds to the cell one-to-one. That is, the feature set is at the cell level.

[0174] Optionally, in the set of cell characteristic sets, multiple cell characteristic sets are arranged in order, for example, in the order of arrangement of the cells. For example, the number of cells is 4, the 4 cells are cell B, cell A, cell C and cell D, and the 4 cell characteristic sets are cell characteristic set 1, cell characteristic set 2, cell characteristic set 3 and cell characteristic set 4. Among them, cell characteristic set 1 corresponds to cell B, cell characteristic set 2 corresponds to cell A, cell characteristic set 3 corresponds to cell C, and cell characteristic set 4 corresponds to cell D.

[0175] The multiple cells may be serving cells.

[0176] An example of the first indication information is as follows:

[0177] featureSetDownlinkPerCCList SEQUENCE(SIZE(1..maxNrofServingCells))OFFeatureSetDownlinkPerCC-Id

[0178] FeatureSetDownlinkPerCC-Id is the identifier (or index) of the downlink carrier feature set corresponding to each cell.

[0179] In a possible implementation, multiple cells are arranged from small to large according to cellIndex, and the smallest cellIndex corresponds to the first feature set in featureSetDownlinkPerCCList.

[0180] In the DAPS handover scenario, the source cell can be ranked before the target cell. The source cell is the serving cell before the handover, and the target cell is the destination cell of the handover.

[0181] Another example of the first instruction:

[0182] featureSetUplinkPerCCPerServingCellList SEQUENCE(SIZE(1..maxNrofServingCells))OF FeatureSetUplinkPerCCPerServingCell

[0183] FeatureSetUplinkPerCCPerServingCell is the uplink carrier feature set corresponding to each cell.

[0184] In a possible implementation, cells are arranged in ascending order according to cellIndex, and the smallest cellIndex corresponds to the first feature set in featureSetUplinkPerCCPerServingCellList.

[0185] In the DAPS handover scenario, the source cell is ranked before the target cell.

[0186] Another example of the first instruction:

[0187]

[0188] FeatureSetUplinkPerCC-Id is an identifier (or index) of an uplink carrier feature set corresponding to the uplink (Uplink).

[0189] A possible implementation, when the value of this flag is 0, it indicates an invalid value and is used in carrier switching or SDL scenarios.

[0190] The cells are arranged from small to large according to cellIndex, first all NULs and then all SULs. The smallest cellIndex corresponds to the first uplink carrier feature set in featureSetUplinkPerCCList.

[0191] In a DAPS handover scenario, the source cell is ranked before the target cell.

[0192] Another example of the first indication information, FeatureSetDownlinkPerCC is placed in the configuration of each CC:

[0193] ServingCellConfig::=SEQUENCE{

[0194] …

[0195] featureSetDownlinkPerCC FeatureSetDownlinkPerCC OPTIONAL,--Need M.

[0196] }

[0197] This field indicates the FeatureSetDownlinkPerCC-Id corresponding to the cell.

[0198] Another example of the first indication information, FeatureuplinkPerCC is placed in each uplink configuration:

[0199] UplinkConfig::=SEQUENCE{

[0200] …

[0201] featureSetUplinkPerCC FeatureSetUplinkPerCC OPTIONAL,--Need M

[0202] }

[0203] Among them, the FeatureSetDownlinkPerCC-Id value corresponding to the cell is 0, which indicates an invalid value and is used in the carrier Switching scenario.

[0204] Optionally, the first indication information may be carried in RRC signaling, such as an RRC reconfiguration message (RRCReconfiguration) or an RRC resume (RRC Resume) message.

[0205] Optionally, the first indication information may be of the Need M (maintained) type, that is, the terminal needs to save the first indication information. When the first indication information in the RRC signaling carrying the first indication information is missing, the terminal uses the first indication information saved or received last time.

[0206] 220. The base station determines configuration information based on the first capability.

[0207] In other words, the configuration information is related to the first capability. For example, the first capability is the first frequency band combination, and the configuration information may be configuration information related to the first frequency band combination, such as the configuration of the carrier for CA or DC determined according to the first frequency band combination. For example, the base station may determine the number of MIMO layers of the configured carrier based on the capability of the first frequency band combination; for another example, the switching frequency band pair (bandpair) and the corresponding switching period (period) and other information in the uplink transmission switching scenario may be determined based on the first frequency band combination. The configuration information corresponding to different frequency band combinations may be different.

[0208] It should be understood that the switching period, switching time, and switching interruption duration in the present application can be replaced with each other.

[0209] For example, the first capability is BC1, which includes three frequency bands: bandA, bandB, and bandC. The base station sends the CA configuration between CC1 on bandA, CC2 on bandB, and CC3 on bandC according to the capability of BC1. The terminal determines that the switching period for uplink transmission switching between carriers of bandA and bandC is 35us, and the switching period for uplink transmission switching between carriers of bandA and bandB is 140us according to the first capability.

[0210] Optionally, the above configuration information does not include the switching period between frequency band pairs, but the terminal can determine based on the first indication information the BC capability based on which the base station sends the configuration, thereby determining the uplink switching time used when performing uplink transmission switching.

[0211] For another example, carrier characteristic set 1 corresponds to CC1, carrier characteristic set 2 corresponds to CC2, and carrier characteristic set 3 corresponds to CC3. The base station sends the first capability of carrier characteristic set 1 to the terminal. The terminal determines that the switching period for transmitting switching on CC1 is 35us according to the carrier characteristic set 1.

[0212] In another example, cell characteristic set 1 corresponds to cell 1, cell characteristic set 2 corresponds to cell 2, and cell characteristic set 3 corresponds to cell 3. The base station sends the first capability to the terminal as cell characteristic set 2. The terminal determines that the switching period of transmission switching in cell 2 is 140us according to the cell characteristic set 2. For example, the terminal determines that the switching period of transmission switching on the carrier in cell 2 is 140us.

[0213] That is, the base station determines the first capability and then determines the relevant configuration for the terminal according to the first capability. In other words, the configuration information is related to the capability of the terminal.

[0214] It should be understood that the first indication information and the configuration information may be carried in the same message. Exemplarily, the message may be an RRC reconfiguration message (RRCReconfiguration) or an RRC resume (RRC Resume) message. The first indication information and the configuration information may also be carried in different messages.

[0215] 230. The base station sends configuration information to the terminal, and correspondingly, the terminal receives the configuration information.

[0216] The configuration information indicates the configuration determined by the base station for the terminal according to the first capability in step 220. For the configuration information, refer to the description of step 220.

[0217] The terminal can communicate with the base station in the serving cell according to the configuration information.

[0218] Exemplarily, the message may be an RRC reconfiguration message (RRCReconfiguration), an RRC resume (RRCResume) message or an RRC connection reconfiguration message (RRCConnectionReconfiguration).

[0219] For example, the configuration information can be carried in RRCmobilityFromEUTRACommand, such as in the NR target access technology capability container message NR targetRAT-MessageContainer.

[0220] In this method, the terminal can obtain accurate communication configuration in a timely manner, avoiding uplink and downlink reception damage, bit errors and other anomalies caused by the inability to accurately align the information between the base station and the terminal, and can improve communication quality.

[0221] The present application also provides a communication method, such as Figure 4 As shown, the method comprises the following steps:

[0222] 410. The terminal sends capability information to the base station, and correspondingly, the base station receives the capability information.

[0223] The capability information includes the transmission channel switching capability supported by the terminal.

[0224] For example, the terminal reports two frequency band combinations BC#1 and BC#2, where BC#1 includes the frequency bands {bandA+bandB+bandC+bandD}, and BC#2 includes the frequency bands {bandA+bandB+bandC+bandD}. The frequency band pairs for uplink transmission switching reported in BC#1 and BC#2, and the switching time between the frequency band pairs can be shown in the following table.

[0225]

[0226]

[0227] It should be understood that this table is only an example, for example, the corresponding relationship between the switching time, frequency band pairs, and frequency band combinations in the table is only an example.

[0228] 420. The base station determines configuration information based on the capability information.

[0229] The configuration information is used to configure the terminal to switch an uplink transmission channel or a downlink reception channel between frequency bands of the first frequency band pair.

[0230] The uplink transmission channel (Tx chain) switching in the present application can be replaced by uplink transmission (Tx) switching. Uplink transmission switching can refer to dynamic uplink transmission switching, that is, uplink transmission switching combined with RRC configuration and low-layer signaling dynamic scheduling.

[0231] The first frequency band pair includes at least two frequency bands. For example, the first frequency band pair includes a first frequency band and a second frequency band, the first frequency band is the frequency band where the uplink transmission channel is located before the channel switching, and the second frequency band is the frequency band where the uplink transmission channel is located after the channel switching, wherein the first frequency band is different from the second frequency band. The first frequency band pair belongs to a first frequency band combination, and the first frequency band combination may also include a second frequency band pair. In other words, the first frequency band combination includes at least one frequency band pair.

[0232] The first frequency band pair may also include more than two frequency bands. For example, the first frequency band pair includes four frequency bands, wherein the first frequency band includes two frequency bands, which are the frequency bands where the uplink transmission channel is located before the channel switching; the second frequency band includes two frequency bands, which are the frequency bands where the uplink transmission channel is located after the channel switching, wherein the frequency bands included in the first frequency band and the frequency bands included in the second frequency band may be different or partially the same. For example, the terminal has two transmission channels, and the transmission channels are located in bandA and bandB respectively before the channel switching, and are located in bandC and bandD respectively after the switching. For another example, the transmission channels are located in bandA and bandB before the switching, and are located in bandA and bandC respectively after the switching.

[0233] For another example, the first frequency band pair includes three frequency bands, wherein the first frequency band includes two frequency bands, which are the frequency bands where the uplink transmission channel is located before the channel switching; the second frequency band includes one frequency band, which is the frequency band where the uplink transmission channel is located after the channel switching.

[0234] For example, the first frequency band combination includes frequency band pair A and frequency band pair B, wherein frequency band pair A includes frequency band 1 and frequency band 2, and frequency band pair B includes frequency band 3 and frequency band 4.

[0235] The identifier of the frequency band included in the first frequency band pair indicates the position of the frequency band supporting dynamic switching in at least one frequency band pair. The at least one frequency band pair may be in the form of a list or a set. For example, the identifier of the frequency band included in the first frequency band pair may be the identifier (or index) of the frequency band included in the first frequency band pair in the frequency band pair list, which is used to indicate the position of the frequency band included in the first frequency band pair in the frequency band pair list.

[0236] The above configuration information includes at least one of the following:

[0237] an identification of frequency bands included in the first frequency band pair;

[0238] A switching option for switching transmission channels between frequency bands of the first frequency band pair (UplinkTxSwitchingOption);

[0239] a switching time for switching transmission channels between frequency bands of the first frequency band pair;

[0240] the number of transmission channels for switching the transmission channels between frequency bands of the first frequency band pair; and the identifier of the second frequency band affected by the switching of the transmission channels between frequency bands of the first frequency band pair.

[0241] The frequency bands included in the first frequency band pair each correspond to an identifier. For example, the first frequency band pair includes frequency band A and frequency band B, frequency band A corresponds to identifier 1, and frequency band B corresponds to identifier 2. It should be understood that the identifier can also be called an index of the frequency band.

[0242] The switching options for switching transmission channels between frequency bands of the first frequency band pair are as follows:

[0243] In the case where the transmission channel switching is uplink transmission channel switching, the switching options of the transmission channel switching between frequency bands of the first frequency band pair are switched uplink transmission switchedUL, or dual uplink transmission dualUL; or,

[0244] In the case where the transmission channel switching is downlink receiving channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched downlink transmission switchedDL, or dual downlink transmission dualDL.

[0245] The second frequency band affected by the switching of transmission channels between the frequency bands of the first frequency band pair:

[0246] In a possible implementation, when the transmission channel switching is uplink transmission channel switching, the second frequency band is a frequency band in which downlink reception is affected by uplink transmission channel switching between frequency bands of the first frequency band pair.

[0247] In another possible implementation, when the transmission channel switching is downlink receiving channel switching, the second frequency band is a frequency band whose uplink transmission is affected by the downlink receiving channel switching between frequency bands of the first frequency band pair.

[0248] For example, the capability information reported by the terminal to the base station is Table 2, and Table 2 includes two capabilities, namely BC#1 and BC#2. The base station determines the first capability as BC#1, and then determines the configuration information based on BC#1. For example, the frequency bands include bandA, bandB, bandC, and bandD. Among them, there are three types of frequency band pairs, namely bandA-bandB, bandA-bandC, and bandB-bandC. Furthermore, the transmission channel switching between the frequency bands of these three frequency band pairs is uplink transmission switching. In addition, the base station can determine that the switching time for the transmission channel switching of different frequency band pairs is: the switching time of bandA-bandB is 140us, the switching time of bandA-bandC is 35us, and the switching time of bandB-bandC is 35us.

[0249] Optionally, the terminal can also determine the configuration information corresponding to the capability based on the capability information indicated by the base station. For example, the base station indicates to the terminal that the first capability is BC#1, and the frequency band pairs configured for uplink transmission switching are the above three frequency band pairs. Then, the terminal can further determine the switching time and other information of the transmission channel switching between the above frequency band pairs based on BC#1, that is, the switching time between the three frequency band pairs of bandA-bandB, bandA-bandC, and bandB-bandC is 140us, 35us, and 35us respectively, instead of 35us, 140us, and 35us in BC#2. In this way, it can avoid the inconsistency between the switching time expected by the terminal to be used by the base station and the switching time actually used by the base station, resulting in reception errors.

[0250] Optionally, the number of transmission channels for the transmission channel switching of the first frequency band pair is different, and the corresponding switching time may also be different. For example, for the transmission channel switching of 1Tx (i.e., the number of transmission channels is 1)-2Tx (i.e., the number of transmission channels is 2) between the first frequency band pair, the corresponding switching time is the first switching time; for the switching of the transmission channel of 2Tx-2Tx between the first frequency band pair, the corresponding switching time is the second switching time. The first switching time may be different from the second switching time. In the above configuration information, the base station may indicate the first switching time and the second switching time respectively.

[0251] Optionally, in the EN-DC scenario, the terminal may report the above frequency band pair list in UE-MRDC-Capability. In the NR scenario, the terminal may report the above frequency band pair list in UE-NR-Capability.

[0252] The above steps 410 and 420 are optional steps. It should also be understood that, in a possible implementation, the base station that receives the capability information in the above step 410 and the base station that determines the configuration information according to the capability information in the step 420 may not be the same base station.

[0253] For example, the capability information may come from the terminal or from other access network devices or core network devices, that is, capability information from the terminal forwarded by other access network devices or core network devices. Base station #A receives the capability information and forwards it to base station #B, which then determines the configuration information based on the capability information.

[0254] 430. The base station sends configuration information to the terminal, and correspondingly, the terminal receives the configuration information.

[0255] Please refer to the description of step 420 for configuration information.

[0256] In this method, by indicating in the configuration information of the base station the first frequency band pair for transmission channel switching, the switching time for transmission channel switching between frequency bands of the first frequency band pair, the switching options for transmission channel switching of the first frequency band pair and other information, it is possible to avoid inconsistent understandings of the transmission channel switching between the terminal and the base station, and to avoid the terminal being unable to correctly decode the data blocks sent by the network when the switching time between the first frequency band pairs expected by the terminal is less than the switching time when the base station dynamically schedules the transmission channel switching, thereby causing bit errors when the transmission channel is switched, thereby improving communication reliability.

[0257] In order to facilitate understanding of the communication method of the present application, several implementation examples in different communication scenarios are given below.

[0258] Example 1, in the SA networking scenario:

[0259] A possible implementation is Figure 5 As shown in (a):

[0260] The terminal sends capability information to a base station (such as the next generation Node B (GNB)), and correspondingly, the base station receives the capability information.

[0261] The capability information is UECapabilityInformation. The terminal carries a capability version tag (an example of a first identifier) ​​in UECapabilityInformation, and reports the capabilities supported by the terminal, such as BCList, to the base station.

[0262] The base station sends an RRC reconfiguration message to the terminal, and correspondingly, the terminal receives the RRC reconfiguration message.

[0263] The base station carries at least one of the following in the RRC reconfiguration message (RRCReconfiguration): capability version information, BC indication, FS indication of the row corresponding to the BC, featureSetDownlinkPerCC corresponding to each CC, and featureSetUplinkPerCC corresponding to each uplink.

[0264] That is to say, the aforementioned first indication information is carried in the RRC reconfiguration message.

[0265] The terminal completes RRC reconfiguration with the base station according to the configuration indicated by the base station.

[0266] The terminal sends an RRC reconfiguration completion message to the base station.

[0267] Another possible implementation is Figure 5 As shown in (b):

[0268] The base station sends an RRC release message (RRCRelease) to the terminal, and correspondingly, the terminal receives the RRC release message.

[0269] The terminal enters the RRC inactive state based on the RRC release message, and the first indication information becomes invalid at this time. The first indication information becomes invalid, and one way to understand it is that the terminal deletes the first indication information saved or received last time, that is, the first indication information is of the Need M type. The invalidation of the first indication information hereinafter can refer to the description here, and will not be repeated here.

[0270] The terminal sends an RRC recovery request to the base station, and correspondingly, the base station receives the RRC recovery request.

[0271] The base station sends an RRC resume message (RRC Resume) to the terminal, and correspondingly, the terminal receives the RRC resume message.

[0272] The RRC recovery message carries at least one of the following: capability version information, BC indication, FS indication of the row corresponding to the BC, featureSetDownlinkPerCC corresponding to each CC, and featureSetUplinkPerCC corresponding to each uplink. That is, the aforementioned first indication information is carried in the RRC recovery message.

[0273] The terminal completes RRC recovery with the base station based on the RRC recovery message.

[0274] The terminal sends an RRC recovery completion message to the base station, and correspondingly, the base station receives the RRC recovery completion message.

[0275] Another possible implementation is Figure 5 As shown in (c):

[0276] The terminal sends an RRC reestablishment request (RRCReestablishment Request) to the base station, and correspondingly, the base station receives the RRC reestablishment request.

[0277] In this case, the first indication information is invalid. For example, before the RRC re-establishment request is sent, the first indication information is invalid.

[0278] The base station sends an RRC re-establishment message (RRCReestablishment) to the terminal, and correspondingly, the terminal receives the RRC re-establishment message.

[0279] The terminal sends an RRC re-establishment completion message to the base station, and correspondingly, the base station receives the RRC re-establishment completion message.

[0280] Example 2: In an NSA networking scenario, a terminal accesses a network (such as an evolved NodeB (ENB)).

[0281] A possible implementation is Figure 6 As shown in (a):

[0282] The ENB sends an RRC connection reconfiguration message (RRCConnectionReconfiguration) to the terminal, and correspondingly, the terminal receives the RRC connection reconfiguration message.

[0283] The RRC connection reconfiguration message carries capability version information, BC indication, FS indication of the row corresponding to the BC, featureSetDownlinkPerCC corresponding to each CC, and featureSetUplinkPerCC corresponding to each uplink. That is, the aforementioned first indication information is carried in the RRC connection reconfiguration message.

[0284] The terminal sends an RRC connection reconfiguration completion message to the ENB, and correspondingly, the ENB receives the connection reestablishment completion message.

[0285] The GNB sends an RRC reconfiguration message (RRCConnectionReconfiguration) to the terminal.

[0286] The RRC connection reconfiguration message carries at least one of the following: capability version information, BC indication, FS indication of the row corresponding to the BC, featureSetDownlinkPerCC corresponding to each CC, and featureSetUplinkPerCC corresponding to each uplink. That is, the aforementioned first indication information is carried in the RRC connection reconfiguration message.

[0287] The terminal completes the RRC connection reconfiguration with the GNB based on the RRC connection reconfiguration message.

[0288] The terminal sends an RRC connection reconfiguration completion message to the GNB, and correspondingly, the GNB receives the RRC connection reconfiguration completion message.

[0289] Another possible implementation is Figure 6 As shown in (b),

[0290] The ENB sends a capability request message to the terminal, and correspondingly, the terminal receives the capability request message.

[0291] The terminal sends capability information to the ENB, and correspondingly, the ENB receives the capability information.

[0292] The capability information is UECapabilityInformation. The terminal carries a capability version tag (an example of a first identifier) ​​in UECapabilityInformation, and reports the capabilities supported by the terminal, such as BCList, to the base station.

[0293] The GNB sends an RRC reconfiguration message to the terminal, and correspondingly, the terminal receives the RRC reconfiguration message.

[0294] The terminal sends an RRC reconfiguration completion message to the GNB, and correspondingly, the GNB receives the RRC reconfiguration message.

[0295] When the ENB sends a terminal capability request message (UECapabilityEnquiry) to the terminal, the first indication information before the message becomes invalid. The terminal can report the supported capabilities to the ENB in ​​the capability message (UECapabilityinformation). The GNB can carry the first indication information again in the RRC reconfiguration message.

[0296] Example 2, in the wireless access technology switching scenario:

[0297] A possible implementation is Figure 7 As shown,

[0298] The terminal is connected to the network and enters the connected state.

[0299] The ENB sends a mobilityFromEUTRACommand message to the terminal, and correspondingly, the terminal receives the mobilityFromEUTRACommand.

[0300] The RRCmobilityFromEUTRACommand carries the NR target access technology capability container message NRtargetRAT-MessageContainer, which carries at least one of the following: capability version information, BC indication, FS indication of the row corresponding to the BC, featureSetDownlinkPerCC corresponding to each CC, and featureSetUplinkPerCC corresponding to each uplink. That is, the aforementioned first indication information is carried in the mobilityFromEUTRACommand.

[0301] The terminal sends an RRC reconfiguration completion message to the GNB, and correspondingly, the GNB receives the RRC reconfiguration completion message.

[0302] In addition, when the base station indicates the frequency band of the uplink transmission channel and at least one frequency band pair for uplink transmission switching to the terminal, but does not indicate the uplink transmission switching time of the frequency band pair to the terminal, the terminal can determine the switching time based on the following two implementations, and further determine the first capability.

[0303] Method 1: When the terminal device supports multiple switching times for the frequency band pair, the shortest switching time for the frequency band pair is selected, the first capability is further determined, and subsequent communication is completed.

[0304] Taking the table in 410 as an example, the terminal supports BC#1 and BC#2, and the base station indicates to the terminal that the frequency band pair for uplink transmission switching is bandA-bandB, but does not indicate whether the base station determines the switching time of the frequency band pair according to BC#1 or BC#2. In BC#1, the switching time corresponding to bandA-bandB is 140us, and in BC#2, the switching time corresponding to bandA-bandB is 35us. The terminal selects the switching time of 35us, and further, the terminal determines that the first capability is BC#2.

[0305] Mode 2: The terminal determines the switching time according to the priority of the frequency band pair, further determines the first capability, and completes subsequent communication.

[0306] For example, the base station indicates to the terminal that the frequency bands for uplink transmission switching include bandA, bandB, and bandC. The above three frequency bands are sent to the terminal device by configuring a frequency band list for uplink transmission switching. The frequency bands in the above frequency band list are arranged in descending order of priority, that is, the frequency band ranked first has the highest priority, the frequency band ranked second has the second priority, and so on. The frequency band ranked last has the lowest priority. Different frequency bands have different priorities, and the priority of a frequency band pair can be determined according to the priority of the frequency bands included in the frequency band pair. For example, the priority of bandA is 1, the priority of bandB is 2, and the priority of bandC is 3. The smaller the value, the higher the priority. Then the priority of the frequency band pair bandA-bandB is the highest, the priority of bandA-bandC is the second, and the priority of bandB-bandC is the lowest.

[0307] Taking the table in 410 as an example, the terminal device supports BC#1 and BC#2. The frequency bands for uplink transmission switching configured by the base station to the terminal are bandA, bandB, and bandC in descending order of priority. Then the priority of bandA is the highest priority, followed by bandB, and bandC is the last. However, the base station does not indicate whether it is configured according to BC#1 or BC#2. According to the priority of the frequency band, the terminal can determine that bandA-bandB has the highest priority, and the terminal selects BC with a shorter switching time corresponding to bandA-bandB as the first capability. That is, in BC#1, the switching time corresponding to bandA-bandB is 140us, and in BC#2, the switching time corresponding to bandA-bandB is 35us. The terminal determines that the switching time of bandA-bandB is 35u, and further, the terminal determines the first capability as BC#2. Then, according to BC#2, the switching time between bandA-bandB, bandA-bandC, and bandB-bandC can be determined.

[0308] In this method, the terminal can obtain accurate communication configuration in a timely manner, avoiding uplink and downlink reception damage, bit errors and other anomalies caused by inaccurate alignment between the base station and the terminal, and can improve communication quality.

[0309] It should be understood that the above-mentioned frequency band pairs, frequency bands or priorities corresponding to frequency band pairs, the list format of frequency bands for uplink transmission switching, and the order of arrangement of frequency bands in the list are only examples and should not constitute limitations on the application.

[0310] It is understandable that in order to implement the functions in the above embodiments, the network device and the terminal device include hardware structures and / or software modules corresponding to the execution of each function. It should be easily appreciated by those skilled in the art that, in combination with the units and method steps of each example described in the embodiments disclosed in this application, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0311] Figure 8 and Fig. 9 The following is a schematic diagram of the structure of possible communication devices provided in the embodiments of the present application. These communication devices can be used to implement the functions of the terminal or base station in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of the present application, the communication device can be as follows: Figure 1 One of the terminals 120a-120j shown may also be Figure 1 The base station 110a or 110b shown may also be a module (such as a chip) applied to a terminal or a base station.

[0312] like Figure 8 As shown, the communication device 800 includes a processing unit 810 and a transceiver unit 820. The communication device 800 is used to implement the above Figure 2 The functions of a base station or a terminal in the method embodiment are shown.

[0313] When the communication device 800 is used to implement Figure 2 The functions of the base station in the method embodiment shown are:

[0314] The transceiver unit 820 may be configured to send first indication information;

[0315] The transceiver unit 820 may also be used to send configuration information;

[0316] The processing unit 810 is configured to determine configuration information based on the first capability.

[0317] When the communication device 800 is used to implement Figure 2 The functions of the terminal in the method embodiment shown are:

[0318] The transceiver unit 820 is used to receive first indication information;

[0319] The transceiver unit 820 is further configured to receive configuration information.

[0320] When the communication device 800 is used to implement Figure 4 The functions of the base station in the method embodiment shown are:

[0321] The transceiver unit 820 may be used to receive capability information;

[0322] The processing unit 810 is used to determine configuration information based on the capability information;

[0323] The transceiver unit 820 may be configured to send configuration information.

[0324] When the communication device 800 is used to implement Figure 4 The functions of the terminal in the method embodiment shown are:

[0325] The transceiver unit 820 may be used to send capability information;

[0326] The transceiver unit 820 may be configured to receive configuration information.

[0327] For more detailed description of the processing unit 810 and the transceiver unit 820, please refer to Figure 3 to Figure 4 The relevant description in the method embodiment shown is directly obtained and will not be repeated here.

[0328] like Fig. 9 As shown, the communication device 900 includes a processor 910 and an interface circuit 920. The processor 910 and the interface circuit 920 are coupled to each other. It is understood that the interface circuit 920 can be a transceiver or an input-output interface. Optionally, the communication device 900 may also include a memory 940 for storing instructions executed by the processor 910 or storing input data required by the processor 910 to execute instructions or storing data generated after the processor 910 executes instructions.

[0329] When the communication device 900 is used to implement Figures 2 to 7 When the method is shown, the processor 910 is used to implement the function of the above-mentioned processing unit 810, and the interface circuit 920 is used to implement the function of the above-mentioned transceiver unit 820.

[0330] When the above communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiment. The terminal chip receives information from other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal; or the terminal chip sends information to other modules in the terminal (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station.

[0331] When the above-mentioned communication device is a module applied to a base station, the base station module implements the functions of the base station in the above-mentioned method embodiment. The base station module receives information from other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the terminal to the base station; or, the base station module sends information to other modules in the base station (such as a radio frequency module or an antenna), and the information is sent by the base station to the terminal. The base station module here can be a baseband chip of a base station, or it can be a DU or other module, and the DU here can be a DU under an open radio access network (O-RAN) architecture.

[0332] It is understandable that the processor in the embodiments of the present application may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0333] The method steps in the embodiments of the present application can be implemented in hardware or in software instructions that can be executed by a processor. The software instructions can be composed of corresponding software modules, and the software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, register, hard disk, mobile hard disk, CD-ROM or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium can also be a component of the processor. The processor and the storage medium can be located in an ASIC. In addition, the ASIC can be located in a base station or a terminal. The processor and the storage medium can also be present in a base station or a terminal as discrete components.

[0334] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instruction is loaded and executed on a computer, the process or function described in the embodiment of the present application is executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a base station, a user device or other programmable device. The computer program or instruction may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instruction may be transmitted from one website site, computer, server or data center to another website site, computer, server or data center by wired or wireless means. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium, for example, a floppy disk, a hard disk, a tape; it may also be an optical medium, for example, a digital video disc; it may also be a semiconductor medium, for example, a solid-state hard disk. The computer-readable storage medium may be a volatile or nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.

[0335] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0336] Depending on whether it is used in the specification, it is optional: In this application, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. In the text description of this application, the character " / " generally indicates that the previous and next associated objects are in an "or" relationship; in the formula of this application, the character " / " indicates that the previous and next associated objects are in a "division" relationship. "Including at least one of A, B and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

[0337] It is understood that the various numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The size of the sequence number of the above-mentioned processes does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that: include: Receiving configuration information, the configuration information is used to configure the terminal device to communicate on K cells, where K is a positive integer; First indication information is received, where the first indication information indicates a first capability, where the first capability is related to the configuration information, and where the first capability is at least one of a first frequency band combination, a first feature set, or a first carrier feature set.

2. The method according to claim 1, characterized in that Before receiving the configuration information, the method further includes: Send capability information, where the capability information includes at least one of the following: at least one frequency band combination supported by the terminal device; at least one feature set supported by the terminal device, the feature set comprising a downlink feature set and / or an uplink feature set, each feature set in the feature set corresponding to a frequency band entity in a frequency band combination; The terminal device supports at least one carrier characteristic set, where the carrier characteristic set includes a carrier downlink characteristic set and / or a carrier uplink characteristic set, and each carrier characteristic set in the carrier characteristic set corresponds to a carrier in a frequency band in a frequency band combination.

3. The method according to claim 2, characterized in that The first capability is the first frequency band combination, the first indication information indicates an identifier of the first frequency band combination, and the first frequency band combination belongs to at least one frequency band combination supported by the terminal device.

4. The method according to claim 2, characterized in that: The first capability is the first feature set, the first indication information indicates the index of the first feature set, the index of the first feature set indicates the position of the first feature set in a first feature set combination, the first feature set combination is the feature set combination corresponding to the first frequency band combination, and the first feature set is a subset of at least one feature set supported by the terminal device.

5. The method according to claim 2, characterized in that: The first capability is the first carrier characteristic set, the first indication information indicates an identifier of the first carrier characteristic set, the first carrier characteristic set is a first carrier downlink characteristic set and / or a first carrier uplink characteristic set, and the first carrier characteristic set is a subset of at least one carrier characteristic set supported by the terminal device.

6. The method according to claim 5, characterized in that The first carrier characteristic set belongs to a first carrier characteristic set combination, the first carrier characteristic set combination includes L carrier characteristic sets, where L is a positive integer, the first carrier characteristic set combination corresponds to a first cell, and the first cell belongs to the K cells.

7. The method according to any one of claims 1 to 6, characterized in that The K cells correspond one-to-one to K carrier characteristic set combinations, and each of the K carrier characteristic set combinations includes one or more carrier characteristic sets.

8. The method according to claim 7, characterized in that The L carrier characteristic sets correspond one-to-one to L carriers, the L carriers are candidate carriers used for communication in the first cell, the L carrier characteristic sets belong to a first carrier characteristic set combination, and the first carrier characteristic set combination corresponds to the first cell.

9. The method according to claim 8, characterized in that The L carrier uplink characteristic sets are arranged in a first order, the first order is the arrangement order of the L carriers in the first cell, and / or the L carrier characteristic sets are L downlink carrier characteristic sets, the L carrier downlink characteristic sets are arranged in a second order, the second order is the arrangement order of the L downlink carriers in the first cell.

10. The method according to any one of claims 5 to 9, characterized in that The first indication information further indicates a first carrier corresponding to the first carrier characteristic set.

11. The method according to any one of claims 2 to 10, characterized in that The method further comprises: The capability information is first capability information. The capability information includes a first identifier, and the first identifier is used to indicate that the capability information is first capability information.

12. A communication method, characterized in that: include: Determine configuration information based on a first capability, where the first capability is at least one of a first frequency band combination, a first characteristic set, or a first carrier characteristic set, and the configuration information is used to configure the terminal device to communicate on K cells, where K is a positive integer; Sending the configuration information; First indication information is sent, where the first indication information indicates the first capability.

13. The method according to claim 12, characterized in that Before sending the configuration information, the method further includes: Receive capability information, where the capability information includes at least one of the following: at least one frequency band combination supported by the terminal device; at least one feature set supported by the terminal device, the feature set comprising a downlink feature set and / or an uplink feature set, each feature set in the feature set corresponding to a frequency band entity in a frequency band combination; The terminal device supports at least one carrier characteristic set, where the carrier characteristic set includes a carrier downlink characteristic set and / or a carrier uplink characteristic set, and each carrier characteristic set in the carrier characteristic set corresponds to a carrier in a frequency band in a frequency band combination.

14. The method according to claim 13, characterized in that The first capability is the first frequency band combination, the first indication information indicates an identifier of the first frequency band combination, and the first frequency band combination belongs to at least one frequency band combination supported by the terminal device.

15. The method according to claim 13, characterized in that The first capability is the first feature set, the first indication information indicates the index of the first feature set, the index of the first feature set indicates the position of the first feature set in a first feature set combination, the first feature set combination is the feature set combination corresponding to the first frequency band combination, and the first feature set is a subset of at least one feature set supported by the terminal device.

16. The method according to claim 13, characterized in that The first capability is the first carrier characteristic set, the first indication information indicates an identifier of the first carrier characteristic set, the first carrier characteristic set is a first carrier downlink characteristic set and / or a first carrier uplink characteristic set, and the first carrier characteristic set is a subset of at least one carrier characteristic set supported by the terminal device.

17. The method according to claim 16, characterized in that The first carrier characteristic set belongs to a first carrier characteristic set combination, the first carrier characteristic set combination includes L carrier characteristic sets, where L is a positive integer, the first carrier characteristic set combination corresponds to a first cell, and the first cell belongs to the K cells.

18. The method according to any one of claims 12 to 17, characterized in that: The K cells correspond one-to-one to K carrier characteristic set combinations, and each of the K carrier characteristic set combinations includes one or more carrier characteristic sets.

19. The method according to claim 18, characterized in that The L carrier characteristic sets correspond one-to-one to L carriers, the L carriers are candidate carriers used for communication in the first cell, the L carrier characteristic sets belong to a first carrier characteristic set combination, and the first carrier characteristic set combination corresponds to the first cell.

20. The method according to claim 19, characterized in that The L carrier uplink characteristic sets are arranged in a first order, the first order is the arrangement order of the L carriers in the first cell, and / or the L carrier characteristic sets are L downlink carrier characteristic sets, the L carrier downlink characteristic sets are arranged in a second order, the second order is the arrangement order of the L downlink carriers in the first cell.

21. The method according to any one of claims 16 to 20, characterized in that The first indication information further indicates a first carrier corresponding to the first carrier characteristic set.

22. The method according to any one of claims 17 to 21, characterized in that The method further comprises: The capability information is first capability information. The capability information includes a first identifier, and the first identifier is used to indicate that the capability information is first capability information.

23. A communication method, characterized in that: include: Receive configuration information, where the configuration information is used to configure an uplink transmission channel switch or a downlink reception channel switch of a terminal device between frequency bands of a first frequency band pair, where the first frequency band pair includes at least two frequency bands, and the configuration information includes at least one of the following: an identifier of a frequency band included in the first frequency band pair; a switching option for switching transmission channels between frequency bands of the first frequency band pair; a switching time for switching transmission channels between frequency bands of the first frequency band pair; An identifier of a second frequency band affected by the switching of transmission channels between frequency bands of the first frequency band pair.

24. The method according to claim 23, characterized in that In a case where the transmission channel switching is uplink transmission channel switching, the second frequency band is a frequency band in which downlink reception is affected by uplink transmission channel switching between frequency bands of the first frequency band pair.

25. The method according to claim 23 or 24, characterized in that In the case where the transmission channel switching is uplink transmission channel switching, the switching options of the transmission channel switching between frequency bands of the first frequency band pair are switched uplink transmission switchedUL, or dual uplink transmission dualUL; or, In the case where the transmission channel switching is downlink receiving channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched downlink transmission switchedDL, or dual downlink transmission dualDL.

26. The method according to any one of claims 23 to 25, characterized in that Before receiving the configuration information, the method further includes: Capability information is sent, where the capability information includes a transmission channel switching capability supported by the terminal device.

27. A communication method, characterized in that: include: Send configuration information, where the configuration information is used to configure the terminal device to switch an uplink transmission channel or a downlink reception channel between frequency bands of a first frequency band pair, where the first frequency band pair includes at least two frequency bands, and the configuration information includes at least one of the following: an identifier of a frequency band included in the first frequency band pair; a switching option for switching transmission channels between frequency bands of the first frequency band pair; a switching time for switching transmission channels between frequency bands of the first frequency band pair; An identifier of a second frequency band affected by the switching of transmission channels between frequency bands of the first frequency band pair.

28. The method according to claim 27, characterized in that In a case where the transmission channel switching is uplink transmission channel switching, the second frequency band is a frequency band in which downlink reception is affected by uplink transmission channel switching between frequency bands of the first frequency band pair.

29. The method according to claim 27 or 28, characterized in that In the case where the transmission channel switching is uplink transmission channel switching, the switching options of the transmission channel switching between frequency bands of the first frequency band pair are switched uplink transmission switchedUL, or dual uplink transmission dualUL; or In the case where the transmission channel switching is downlink receiving channel switching, the switching options for the transmission channel switching between frequency bands of the first frequency band pair are switched downlink transmission switchedDL, or dual downlink transmission dualDL.

30. The method according to any one of claims 27 to 29, characterized in that Before sending the configuration information, the method further includes: receiving capability information, the capability information including a transmission channel switching capability supported by the terminal device; The configuration information is determined based on the capability information.

31. A communication device, characterized in that: The communication device comprises a processing module and a transceiver module, and is used to execute the method as claimed in any one of claims 1 to 11, or claims 23 to 26.

32. A communication device, characterized in that: The communication device comprises a processing module and a transceiver module, and is used to execute the method as claimed in any one of claims 12 to 22, or claims 27 to 30.

33. A communication device, comprising a processor, wherein the processor is connected to a memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 30.

34. A communication system, characterized in that: Comprising a communication device as claimed in claims 31 and 32.

35. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store a computer program, and when the computer program is run on a computer, the computer is caused to perform the method according to any one of claims 1 to 30.

36. A chip, characterized in that: The method comprises a processor and a communication interface, wherein the processor is used to read instructions to execute the method according to any one of claims 1 to 30.

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