A communication method, device and system

Abstract

The present application relates to the field of communication technology, and provides a communication method, device and system for realizing that a terminal indicates to a network device the association relationship between the capabilities of a first frequency band combination supported by the terminal and the capabilities of a second frequency band combination. The method comprises: the terminal determines the association between the capabilities of the first frequency band combination and the capabilities of the second frequency band combination. The terminal sends a first indication message to the network device for indicating the association between the capabilities of the first frequency band combination and the capabilities of the second frequency band combination. It is convenient for the network device to determine the association between the capabilities of the first frequency band combination and the capabilities of the second frequency band combination according to the first indication message. Subsequently, when the terminal performs a frequency band switching in the first frequency band combination, and the target frequency band switched by the terminal does not have uplink communication capabilities in the first frequency band combination, and the target frequency band has uplink communication capabilities in the second frequency band combination, it is convenient for the network device to determine the SRS antenna switching capability after the frequency band switching of the first frequency band combination occurs.

Description

Technical Field

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

[0002] The terminal has the capability of carrier switching. When carrier switching occurs, the terminal can switch from carrier 1 associated with band A in band combination (BC) 1 to carrier 2 associated with band B in BC1. When the terminal switches to carrier 2, the sounding reference signal (SRS) antenna switching capability supported by BC1 should be determined by the parameters of the SRS antenna switching capability associated with band B. Since the SRS antenna conversion capability belongs to the uplink capability, when band A has uplink carrier capability / uplink communication capability in BC1 and band B does not have uplink carrier / uplink capability in BC1, the terminal may report the parameters of the SRS antenna conversion capability of band A in BC1 to the network device, but does not report the parameters of the SRS antenna conversion capability of band B in BC1 to the network device. In this way, when carrier switching occurs, the network device cannot know the SRS antenna conversion capability associated with band B after the terminal switches to carrier 2, or it is difficult for the network to find the associated BC2 to determine the SRS antenna conversion capability associated with band B, and cannot determine the SRS antenna conversion capability after the carrier switching occurs, which in turn affects the problem of the network device configuring the BC1 for SRS antenna conversion SRS resources. Summary of the invention

[0003] The embodiments of the present application provide a communication method, apparatus, and system for enabling a terminal to indicate to a network device an association between capabilities of a first frequency band combination supported by the terminal and capabilities of a second frequency band combination supported by the terminal.

[0004] To achieve the above objectives, the present application provides the following technical solutions:

[0005] In a first aspect, an embodiment of the present application provides a communication method, including: a terminal determines the association between the capability of a first frequency band combination supported by the terminal and the capability of a second frequency band combination. The terminal sends first indication information indicating the association between the capability of the first frequency band combination and the capability of the second frequency band combination to a network device.

[0006] The embodiment of the present application provides a communication method, in which a terminal sends first indication information to a network device, and since the first indication information is used to indicate the association between the capability of a first frequency band combination and the capability of a second frequency band combination, it is convenient for the network device to determine the mapping relationship between the capabilities of the frequency band combinations supported by the terminal after receiving the first indication information, so that the network device can find multiple frequency band combinations associated with the capabilities through clear association relationship indication. Subsequently, when the terminal switches from a frequency band A with SRS antenna switching capability in the first frequency band combination to a frequency band B without SRS antenna switching capability in the first frequency band combination, the network device can determine the SRS antenna switching capability of the first frequency band combination after the frequency band change occurs based on the SRS antenna switching capability supported by the second frequency band combination associated with the capability of the first frequency band combination (the second frequency band combination includes the frequency band B, and the frequency band B supports the SRS antenna switching capability in the second frequency band combination), so that the network device can accurately allocate SRS resources to the first frequency band combination. This can simplify the operation of the network device compared to the prior art in which the network device does not know the association between the frequency band combinations, and searches one by one from multiple frequency band combinations reported by the terminal to determine the second frequency band combination.

[0007] In a possible implementation, the first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator. By associating the capability of the first frequency band combination and the capability of the second frequency band combination with the same indicator, the network device determines that the capabilities of the frequency band combinations associated with the same indicator have an associated relationship.

[0008] In a possible implementation, the method provided in the embodiment of the present application further includes: the terminal sends second indication information for indicating the capability association of multiple frequency band combinations with the same indicator to the network device, so that the network device can accurately determine that the capabilities of the frequency band combinations associated with the same indicator have an associated relationship.

[0009] In a possible implementation, the terminal sends the first indication information to the network device, including: the terminal sends the first capability information and the second capability information to the network device, wherein the first capability information and the second capability information both include the first indication information. The first capability information is used to indicate the capability of the first frequency band combination, and the second capability information is used to indicate the capability of the second frequency band combination.

[0010] In the above scheme, by carrying the first indication information in the capability information corresponding to each frequency band combination (for example, the first frequency band combination and the second frequency band combination), when the terminal reports the capability of each frequency band combination to the network device, the network device can not only determine the capability of each frequency band combination, but also determine the association between the capability of the frequency band combination and the capability of another frequency band combination. Furthermore, by carrying the first indication information in the capability information corresponding to each frequency band combination, the signaling interaction between the network device and the terminal can be reduced, saving signaling overhead.

[0011] In one possible implementation, the first capability information and the second capability information may be carried in the same message, that is, the terminal carries both the first capability information and the second capability information in the same message, which can reduce the signaling interaction between the network device and the terminal and save signaling overhead.

[0012] In a possible implementation manner, the first capability information and the second capability information may be carried in different messages, that is, the terminal reports the capability information of each frequency band combination respectively.

[0013] In a possible implementation manner, the first indication information is first identification information, the first identification information is used to identify the second frequency band combination, and the first identification information is associated with the capability of the first frequency band combination.

[0014] It should be noted that if the second frequency band combination has one capability, the first identification information is used to identify the second frequency band combination, for example, the first identification information may be the serial number of the second frequency band combination. If the second frequency band combination has multiple capabilities, the second frequency band combination corresponds to a serial number for each capability.

[0015] In a possible implementation, the terminal sends the first indication information to the network device, including: the terminal sends the third capability information to the network device, the third capability information includes the first indication information, and the third capability information is used to indicate the capability of the first frequency band combination. By carrying the first identification information used to identify the second frequency band combination or to identify a capability in the second frequency band combination in the third capability information, the network device can determine the association between the capability of the first frequency band combination and the capability of the second frequency band combination when determining the capability of the first frequency band combination.

[0016] In a possible implementation manner, the first indication information is a first list, and the first list at least includes an association relationship between a capability of the first frequency band combination and a capability of the second frequency band combination.

[0017] In a possible implementation, the first list may be carried in the same message as a message for the terminal to report the capability information of the frequency band combination (e.g., the first frequency band combination or the second frequency band combination). For example, the terminal sends a first message to the network device, and the first message includes the third capability information and the first list.

[0018] In a possible implementation, the first frequency band combination and the second frequency band combination have the same frequency band. The same frequency band does not support uplink communication capability in the first frequency band combination, but supports uplink communication capability in the second frequency band combination, so that the terminal can determine the association of multiple frequency band combinations with the same frequency band.

[0019] In a possible implementation manner, the first frequency band combination and the second frequency band combination are the same frequency band combination, but the capability of the first frequency band combination and the capability of the second frequency band combination are different.

[0020] In a possible implementation, the method provided in the embodiment of the present application further includes: the terminal sends third indication information to the network device, where the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination.

[0021] In a possible implementation, the method provided in the embodiment of the present application also includes: the terminal sends third indication information to the network device, and the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

[0022] In a second aspect, an embodiment of the present application provides a communication method, the method comprising: a network device receives first indication information from a terminal for indicating that a capability of a first frequency band combination supported by the terminal is associated with a capability of a second frequency band combination. The network device determines, based on the first indication information, that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0023] In a possible implementation, the first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator. Accordingly, the network device determines the capability of the first frequency band combination and the capability of the second frequency band combination are associated according to the first indication information, including: the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator, and the network device determines the capability of the first frequency band combination and the capability of the second frequency band combination are associated.

[0024] In a possible implementation, the method provided in the embodiment of the present application further includes: the network device receives second indication information from the terminal for indicating the capability association of multiple frequency band combinations with the same indicator. The network device determines the capability association of multiple frequency band combinations with the same indicator according to the second indication information.

[0025] In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device determines, according to a predefined protocol, a capability association of multiple frequency band combinations having the same indicator.

[0026] In a possible implementation manner, the method provided in the embodiment of the present application further includes: the network device negotiates with the terminal to determine the capability association of multiple frequency band combinations having the same indicator.

[0027] In a possible implementation, the network device receives first indication information from the terminal, including: the network device receives first capability information and second capability information from the terminal, the first capability information and the second capability information both including the first indication information. The first capability information is used to indicate the capability of the first frequency band combination. The second capability information is used to indicate the capability of the second frequency band combination.

[0028] In one possible implementation, the first indication information is first identification information, which is used to identify the second frequency band combination, and the first identification information is associated with the capability of the first frequency band combination. Accordingly, the network device determines the association between the capability of the first frequency band combination and the capability of the second frequency band combination based on the first indication information, including: the network device determines the association between the first identification information and the capability of the first frequency band combination, and the network device determines the association between the capability of the first frequency band combination and the capability of the second frequency band combination.

[0029] In a possible implementation manner, the network device receives first indication information from a terminal, including: the network device receives third capability information including the first indication information from the terminal, where the third capability information is used to indicate capability of the first frequency band combination.

[0030] In a possible implementation manner, the first indication information is a first list, and the first list includes at least an association relationship between a capability of the first frequency band combination and a capability of the second frequency band combination.

[0031] In a possible implementation, the method provided in the embodiment of the present application further includes: the network device receives third indication information from the terminal, and the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination.

[0032] In a possible implementation, the method provided in the embodiment of the present application also includes: the network device receives third indication information from the terminal, and the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

[0033] In a third aspect, an embodiment of the present application provides a communication method, the communication method comprising: a terminal determines a first uplink antenna capability and a second uplink antenna capability supported by a first frequency band. The terminal sends fourth indication information and fifth indication information to a network device. The fourth indication information is used to indicate the first uplink antenna capability supported by the first frequency band. The fifth indication information is used to indicate the second uplink antenna capability supported by the first frequency band.

[0034] As a possible implementation method, the fourth indication information is used to indicate the first uplink communication capability or the first uplink carrier capability supported by the first frequency band, and the information on the first uplink communication capability or the first uplink carrier capability includes the first uplink antenna capability. The fifth indication information is used to indicate the second uplink communication capability or the second uplink carrier capability supported by the first frequency band, and the information on the second uplink communication capability or the second uplink carrier capability includes the second uplink antenna capability.

[0035] As a possible implementation manner, the first uplink communication capability or the first uplink carrier capability includes the fifth indication information.

[0036] In a possible embodiment, when the first frequency band supports the second uplink antenna capability, the method provided in the embodiment of the present application may also include: the terminal sends sixth indication information to the network device, and the sixth indication information is used to indicate the capability of the frequency band combination corresponding to the second uplink antenna capability, and the capability of the frequency band combination includes SRS antenna switching capability.

[0037] In a fourth aspect, an embodiment of the present application provides a communication method, the communication method comprising: a network device receives fourth indication information and fifth indication information from a terminal. The fourth indication information is used to indicate a first uplink antenna capability supported by a first frequency band. The fifth indication information is used to indicate a second uplink antenna capability supported by the first frequency band. The network device determines the first uplink antenna capability supported by the first frequency band according to the fourth indication information, and determines the second uplink antenna capability supported by the first frequency band according to the fifth indication information.

[0038] As a possible implementation method, the fourth indication information is used to indicate a first uplink communication capability or a first uplink carrier capability supported by the first frequency band, and the first uplink communication capability or the first uplink carrier capability includes a first uplink antenna capability. The fifth indication information is used to indicate a second uplink communication capability or a second uplink carrier capability supported by the first frequency band, and the second uplink communication capability or the second uplink carrier capability includes a second uplink antenna capability.

[0039] As a possible implementation manner, the first uplink communication capability or the first uplink carrier capability includes the fifth indication information.

[0040] In a possible embodiment, when the first frequency band supports the second uplink antenna capability, the method provided in the embodiment of the present application may further include: the network device receives sixth indication information from the terminal. The sixth indication information is used to indicate the capability of the frequency band combination corresponding to the second uplink antenna capability, and the capability of the frequency band combination corresponding to the second uplink antenna capability includes the SRS antenna switching capability. Accordingly, the network device determines the capability of the frequency band combination corresponding to the second uplink antenna capability according to the sixth indication information.

[0041] In a fifth aspect, an embodiment of the present application provides a communication method, the communication method comprising: a terminal determines a maximum uplink antenna capability of a frequency band combination, and the terminal sends seventh indication information to a network device, the seventh indication information being used to indicate the maximum uplink antenna capability of the frequency band combination.

[0042] In a possible implementation manner, the seventh indication information is carried in the capability information of the frequency band combination. The capability information of the frequency band combination is used to indicate the capability of the frequency band combination.

[0043] In a possible implementation, the method provided in the embodiment of the present application further includes: the terminal determines the uplink antenna capability of one or more frequency bands in the frequency band combination. The terminal sends eighth indication information to the network device. The eighth indication information is used to indicate the maximum uplink antenna capability of one or more frequency bands in the frequency band combination.

[0044] In a possible implementation manner, the uplink antenna capability includes the number of uplink transmit antennas or the number of uplink transmit ports.

[0045] In a sixth aspect, an embodiment of the present application provides a communication method, the communication method comprising: a network device receives seventh indication information from a terminal. The seventh indication information is used to indicate the maximum uplink antenna capacity of the frequency band combination. The network device determines the uplink antenna capacity supported by each frequency band in the frequency band combination according to the seventh indication information.

[0046] In a possible implementation manner, the seventh indication information is carried in the capability information of the frequency band combination. The capability information of the frequency band combination is used to indicate the capability of the frequency band combination.

[0047] In a possible implementation, the method provided in the embodiment of the present application further includes: the network device receives eighth indication information from the terminal. The eighth indication information is used to indicate the maximum uplink antenna capacity of each of the one or more frequency bands in the frequency band combination. The network device determines the uplink antenna capacity supported by each frequency band in the frequency band combination according to the seventh indication information, including: the network device determines the uplink antenna capacity supported by each frequency band in the frequency band combination according to the eighth indication information and the seventh indication information.

[0048] In the seventh aspect, an embodiment of the present application provides a communication device, which can implement the method in the first aspect or any possible implementation of the first aspect, and thus can also achieve the beneficial effects in the first aspect or any possible implementation of the first aspect. The communication device can be a terminal, or a device that supports the terminal to implement the method in the first aspect or any possible implementation of the first aspect, such as a chip, a chip system, an integrated circuit, and the like. These chips, chip systems, and integrated circuits can be arranged inside the terminal, or can be independent of the terminal, and the embodiments of the present application do not limit this. The communication device can implement the above method by software, hardware, or by executing corresponding software by hardware.

[0049] In one example, the communication device includes: a processing unit, configured to determine the association between the capability of a first frequency band combination supported by a terminal and the capability of a second frequency band combination; and a communication unit, configured to send first indication information indicating the association between the capability of the first frequency band combination and the capability of the second frequency band combination to a network device.

[0050] In a possible implementation manner, the first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator.

[0051] In a possible implementation manner, the communication unit is further configured to send, to the network device, second indication information for indicating capability association of multiple frequency band combinations having the same indicator.

[0052] In a possible implementation, a communication unit is used to send first capability information and second capability information to a network device, wherein the first capability information and the second capability information both include first indication information, wherein the first capability information is used to indicate the capability of a first frequency band combination, and the second capability information is used to indicate the capability of a second frequency band combination.

[0053] In one possible implementation, the first capability information and the second capability information may be carried in the same message, that is, the terminal carries both the first capability information and the second capability information in the same message, which can reduce the signaling interaction between the network device and the terminal and save signaling overhead.

[0054] In a possible implementation manner, the first capability information and the second capability information may be carried in different messages, that is, the terminal reports the capability information of each frequency band combination respectively.

[0055] In a possible implementation manner, the first indication information is first identification information, the first identification information is used to identify the second frequency band combination, and the first identification information is associated with the capability of the first frequency band combination.

[0056] In a possible implementation manner, the communication unit is used to send third capability information to the network device, where the third capability information includes first indication information, and the third capability information is used to indicate the capability of the first frequency band combination.

[0057] In a possible implementation manner, the first indication information is a first list, and the first list at least includes an association relationship between a capability of the first frequency band combination and a capability of the second frequency band combination.

[0058] In a possible implementation, the first list may be carried in the same message as a message for the terminal to report the capability of the frequency band combination (e.g., the first frequency band combination or the second frequency band combination). For example, the terminal sends a first message to the network device, and the first message includes the third capability information and the first list.

[0059] In a possible implementation, the first frequency band combination and the second frequency band combination have the same frequency band. The same frequency band does not support uplink communication capability in the first frequency band combination, and supports uplink communication capability in the second frequency band combination, so that the terminal can associate the frequency band combinations with the same frequency band.

[0060] In one possible implementation, the communication unit is also used to send third indication information to the network device, and the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination; or, the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

[0061] Exemplarily, when the communication device is a chip or a chip system in a terminal, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the terminal implements a communication method described in the first aspect or any possible implementation of the first aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the terminal located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0062] In an eighth aspect, an embodiment of the present application provides a communication device, which can implement the method in the second aspect or any possible implementation of the second aspect, and thus can also achieve the beneficial effects in the second aspect or any possible implementation of the second aspect. The communication device can be a network device, or a device that supports the network device to implement the method in the second aspect or any possible implementation of the second aspect, such as a chip, a chip system, an integrated circuit, and the like. These chips, chip systems, and integrated circuits can be arranged inside the network device, or they can be independent of the network device, and the embodiments of the present application do not limit this. The communication device can implement the above method through software, hardware, or by executing corresponding software through hardware.

[0063] In one example, the communication device includes: a communication unit, configured to receive first indication information from a terminal for indicating that a capability of a first frequency band combination supported by the terminal is associated with a capability of a second frequency band combination; and a processing unit, configured to determine, based on the first indication information, that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0064] In a possible implementation, the first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator. Accordingly, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator, and the processing unit is configured to determine that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0065] In a possible implementation, the communication unit is further configured to receive second indication information from the terminal indicating capability association of multiple frequency band combinations with the same indicator. The processing unit is further configured to determine capability association of multiple frequency band combinations with the same indicator according to the second indication information.

[0066] In a possible implementation manner, the processing unit is configured to determine, according to a predefined protocol, capability associations of a plurality of frequency band combinations having the same indicator.

[0067] In a possible implementation manner, the processing unit is configured to negotiate with the terminal to determine capability associations of multiple frequency band combinations having the same indicator.

[0068] In a possible implementation, a communication unit is configured to receive first capability information and second capability information from a terminal, wherein the first capability information and the second capability information both include first indication information, wherein the first capability information is used to indicate the capability of a first frequency band combination, and the second capability information is used to indicate the capability of a second frequency band combination.

[0069] In one possible implementation, the first indication information is first identification information, which is used to identify the second frequency band combination, and the first identification information is associated with the capability of the first frequency band combination. The processing unit is used to determine the association between the first identification information and the capability of the first frequency band combination, and then determines the association between the capability of the first frequency band combination and the capability of the second frequency band combination.

[0070] In a possible implementation manner, the communication unit is used to receive third capability information including first indication information from a terminal, where the third capability information is used to indicate a capability of the first frequency band combination.

[0071] In a possible implementation manner, the first indication information is a first list, and the first list includes at least an association relationship between a capability of the first frequency band combination and a capability of the second frequency band combination.

[0072] In a possible implementation manner, the communication unit is further used to receive third indication information from the terminal, where the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination.

[0073] In a possible implementation, the communication unit is further used to receive third indication information from the terminal, where the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

[0074] Exemplarily, when the communication device is a chip or chip system in a network device, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the network device implements a communication method described in the second aspect or any possible implementation of the second aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the network device located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0075] Ninthly, an embodiment of the present application provides a communication device, which can implement the method in the third aspect or any possible implementation of the third aspect, and thus can also achieve the beneficial effects in the third aspect or any possible implementation of the third aspect. The communication device can be a terminal, or a device that supports the terminal to implement the method in the third aspect or any possible implementation of the third aspect, such as a chip, a chip system, an integrated circuit, and the like. These chips, chip systems, and integrated circuits can be arranged inside the terminal, or can be independent of the terminal, and the embodiments of the present application do not limit this. The communication device can implement the above method by software, hardware, or by executing corresponding software by hardware.

[0076] In one example, the communication device includes: a processing unit, configured to determine a first uplink antenna capability and a second uplink antenna capability supported by a first frequency band. A communication unit, configured to send fourth indication information and fifth indication information to a network device. The fourth indication information is used to indicate the first uplink antenna capability supported by the first frequency band. The fifth indication information is used to indicate the second uplink antenna capability supported by the first frequency band.

[0077] As a possible implementation method, the fourth indication information is used to indicate a first uplink communication capability or a first uplink carrier capability supported by the first frequency band, and the first uplink communication capability or the first uplink carrier capability includes a first uplink antenna capability. The fifth indication information is used to indicate a second uplink communication capability or a second uplink carrier capability supported by the first frequency band, and the second uplink communication capability or the second uplink carrier capability includes a second uplink antenna capability.

[0078] As a possible implementation manner, the first uplink communication capability or the first uplink carrier capability includes the fifth indication information.

[0079] In a possible embodiment, when the first frequency band supports the second uplink antenna capability, the communication unit is also used to send sixth indication information to the network device, and the sixth indication information is used to indicate the capability of the frequency band combination corresponding to the second uplink antenna capability, and the capability of the frequency band combination includes SRS antenna switching capability.

[0080] Exemplarily, when the communication device is a chip or a chip system in a terminal, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the terminal implements a communication method described in the third aspect or any possible implementation of the third aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the terminal located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0081] In the tenth aspect, an embodiment of the present application provides a communication device, which can implement the method in the fourth aspect or any possible implementation of the fourth aspect, and thus can also achieve the beneficial effects in the fourth aspect or any possible implementation of the fourth aspect. The communication device can be a network device, or a device that supports the network device to implement the method in the fourth aspect or any possible implementation of the fourth aspect, such as a chip, a chip system, an integrated circuit, etc. These chips, chip systems, and integrated circuits can be arranged inside the network device, or they can be independent of the network device, and the embodiments of the present application do not limit them. The communication device can implement the above method through software, hardware, or by executing corresponding software through hardware.

[0082] In one example, the communication device includes: a communication unit, configured to receive fourth indication information and fifth indication information from a terminal. The fourth indication information is used to indicate a first uplink antenna capability supported by a first frequency band. The fifth indication information is used to indicate a second uplink antenna capability supported by the first frequency band. A processing unit, configured to determine the first uplink antenna capability supported by the first frequency band according to the fourth indication information, and determine the second uplink antenna capability supported by the first frequency band according to the fifth indication information.

[0083] As a possible implementation method, the fourth indication information is used to indicate the first uplink communication capability or the first uplink carrier capability supported by the first frequency band, and the information on the first uplink communication capability or the first uplink carrier capability includes the first uplink antenna capability. The fifth indication information is used to indicate the second uplink communication capability or the second uplink carrier capability supported by the first frequency band, and the information on the second uplink communication capability or the second uplink carrier capability includes the second uplink antenna capability.

[0084] As a possible implementation manner, the first uplink communication capability information or the first uplink carrier capability information includes the fifth indication information.

[0085] In a possible embodiment, when the first frequency band supports the second uplink antenna capability, the communication unit is further used to receive sixth indication information from the terminal. The sixth indication information is used to indicate the capability of the frequency band combination corresponding to the second uplink antenna capability, and the capability of the frequency band combination corresponding to the second uplink antenna capability includes the SRS antenna switching capability. Accordingly, the processing unit is further used to determine the capability of the frequency band combination corresponding to the second uplink antenna capability according to the sixth indication information.

[0086] Exemplarily, when the communication device is a chip or chip system in a network device, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the network device implements a communication method described in the fourth aspect or any possible implementation of the fourth aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the network device located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0087] In the eleventh aspect, an embodiment of the present application provides a communication device, which can implement the method in the third aspect or any possible implementation of the third aspect, and thus can also achieve the beneficial effects in the fifth aspect or any possible implementation of the fifth aspect. The communication device can be a terminal, or a device that supports the terminal to implement the method in the fifth aspect or any possible implementation of the fifth aspect, such as a chip, a chip system, an integrated circuit, and the like. These chips, chip systems, and integrated circuits can be arranged inside the terminal, or they can be independent of the terminal, and the embodiments of the present application do not limit them. The communication device can implement the above method by software, hardware, or by executing corresponding software by hardware.

[0088] In one example, the communication device includes: a processing unit, configured to determine a maximum uplink antenna capability of a frequency band combination; and a communication unit, configured to send seventh indication information to a network device. The seventh indication information is used to indicate the maximum uplink antenna capability of the frequency band combination.

[0089] In a possible implementation manner, the seventh indication information is carried in the capability information of the frequency band combination. The capability information of the frequency band combination is used to indicate the capability of the frequency band combination.

[0090] In a possible implementation, the processing unit is further configured to determine the uplink antenna capability of one or more frequency bands in the frequency band combination. The communication unit is further configured to send eighth indication information to the network device. The eighth indication information is used to indicate the maximum uplink antenna capability of one or more frequency bands in the frequency band combination.

[0091] In a possible implementation manner, the uplink antenna capability includes the number of uplink transmit antennas or the number of uplink transmit ports.

[0092] Exemplarily, when the communication device is a chip or a chip system in a terminal, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the terminal implements a communication method described in the fifth aspect or any possible implementation of the fifth aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the terminal located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0093] In the twelfth aspect, an embodiment of the present application provides a communication device, which can implement the method in the sixth aspect or any possible implementation of the sixth aspect, and thus can also achieve the beneficial effects in the sixth aspect or any possible implementation of the sixth aspect. The communication device can be a network device, or a device that supports the network device to implement the method in the sixth aspect or any possible implementation of the sixth aspect, such as a chip, a chip system, an integrated circuit, etc. These chips, chip systems, and integrated circuits can be arranged inside the network device, or they can be independent of the network device, and the embodiments of the present application do not limit this. The communication device can implement the above method through software, hardware, or by executing corresponding software through hardware.

[0094] In one example, the communication device includes: a communication unit, configured to receive seventh indication information from a terminal. The seventh indication information is used to indicate a maximum uplink antenna capability of the frequency band combination. A processing unit, configured to determine an uplink antenna capability supported by each frequency band in the frequency band combination according to the seventh indication information.

[0095] In a possible implementation manner, the seventh indication information is carried in the capability information of the frequency band combination. The capability information of the frequency band combination is used to indicate the capability of the frequency band combination.

[0096] In a possible implementation, the communication unit is configured to receive eighth indication information from the terminal. The eighth indication information is used to indicate the maximum uplink antenna capability of one or more frequency bands in the frequency band combination. The processing unit is configured to determine the uplink antenna capability supported by each frequency band in the frequency band combination according to the seventh indication information and the eighth indication information.

[0097] Exemplarily, when the communication device is a chip or chip system in a network device, the processing unit may be a processor, and the communication unit may be a communication interface. For example, the communication interface may be an input / output interface, a pin, or a circuit, etc. The processing unit executes the instructions stored in the storage unit so that the network device implements a communication method described in the sixth aspect or any possible implementation of the sixth aspect. The storage unit may be a storage unit in the chip (e.g., a register, a cache, etc.), or a storage unit in the network device located outside the chip (e.g., a read-only memory, a random access memory, etc.).

[0098] In a thirteenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the first aspect to the first aspect. The computer may be a terminal.

[0099] In a fourteenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the second aspect to the second aspect. The computer may be a network device.

[0100] In a fifteenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the third aspect to the third aspect. The computer may be a terminal.

[0101] In a sixteenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the fourth aspect to the fourth aspect. The computer may be a network device.

[0102] In a seventeenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the fifth aspect to the fifth aspect. The computer may be a terminal.

[0103] In an eighteenth aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program or instruction is stored, and when the computer program or instruction is executed on a computer, the computer executes a communication method as described in any possible implementation of the sixth aspect to the sixth aspect. The computer may be a network device.

[0104] In the nineteenth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the first aspect or various possible implementations of the first aspect.

[0105] In the twentieth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the second aspect or various possible implementations of the second aspect.

[0106] In the twenty-first aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the third aspect or various possible implementations of the third aspect.

[0107] In the twenty-second aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the fourth aspect or various possible implementations of the fourth aspect.

[0108] In the twenty-third aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the fifth aspect or various possible implementations of the fifth aspect.

[0109] In the twenty-fourth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute a communication method described in the sixth aspect or various possible implementations of the sixth aspect.

[0110] In the twenty-fifth aspect, the embodiment of the present application provides a communication device for implementing various methods in various possible designs of any aspect of the first to sixth aspects above. The communication device can be the above-mentioned terminal, or a device including the above-mentioned terminal, or a component (for example, a chip) applied to the terminal. Alternatively, the communication device can be the above-mentioned network device, or a device including the above-mentioned network device, or the communication device can be a component (for example, a chip) applied to the network device. The communication device includes a module or unit corresponding to the above-mentioned method, and the module or unit can be implemented by hardware, software, or by hardware executing the corresponding software implementation. The hardware or software includes one or more modules or units corresponding to the above-mentioned functions.

[0111] It should be understood that the communication device described in the above aspect 25 may also include: a bus and a memory, the memory being used to store code and data. Optionally, at least one processor communication interface and the memory are coupled to each other.

[0112] In aspect 26, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of the first aspect or any aspect of the first aspect. For example, the communication device may be a terminal, or a chip applied to a terminal.

[0113] In aspect 27, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of the second aspect or any aspect of the second aspect. For example, the communication device may be a network device, or a chip used in a network device.

[0114] In aspect 28, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of the third aspect or any aspect of the third aspect. For example, the communication device may be a terminal, or a chip applied to a terminal.

[0115] In aspect 29, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of aspect 4 or any aspect of aspect 4. For example, the communication device may be a network device, or a chip used in a network device.

[0116] In the thirtieth aspect, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of the fifth aspect or any aspect of the fifth aspect. For example, the communication device may be a terminal, or a chip applied to a terminal.

[0117] In a thirty-first aspect, an embodiment of the present application provides a communication device, the communication device comprising: at least one processor. Wherein, at least one processor is coupled to a memory, and when the communication device is running, the processor executes a computer-executable instruction or program stored in the memory, so that the communication device performs a method as described in any of the various possible designs of the sixth aspect or any aspect of the sixth aspect. For example, the communication device may be a network device, or a chip used in a network device.

[0118] It should be understood that the memory described in any aspect of aspect 26 to aspect 31 can also be replaced by a storage medium, and the embodiments of the present application are not limited to this. In one possible implementation, the memory described in any aspect of aspect 26 to aspect 31 can be a memory inside the communication device. Of course, the memory can also be located outside the communication device, but at least one processor can still execute computer-executable instructions or programs stored in the memory.

[0119] In aspect 32, an embodiment of the present application provides a communication device, which includes one or more modules for implementing the method of any one of the first, second, third, fourth, fifth, and sixth aspects mentioned above, and the one or more modules may correspond to each step in the method of any one of the first, second, third, fourth, fifth, and sixth aspects mentioned above.

[0120] In aspect thirty-third, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in the first aspect and any possible implementation thereof.

[0121] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0122] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0123] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0124] In aspect thirty-fourth, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in the second aspect and any possible implementation thereof.

[0125] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0126] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0127] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0128] In aspect thirty-fifth, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in aspect three and any possible implementation thereof.

[0129] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0130] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0131] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0132] In aspect thirty-six, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in aspect four and any possible implementation thereof.

[0133] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0134] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0135] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0136] In aspect thirty-seven, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in aspect five and any possible implementation thereof.

[0137] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0138] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0139] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0140] In aspect thirty-eight, an embodiment of the present application provides a chip system, which includes a processor, and the processor is used to read and execute a computer program stored in a memory to execute the method in aspect six and any possible implementation thereof.

[0141] Optionally, the chip system may be a single chip, or a chip module consisting of multiple chips.

[0142] Optionally, the chip system also includes a memory, and the memory is connected to the processor via a circuit or wire.

[0143] Further optionally, the chip system further includes a communication interface. The communication interface is used to communicate with other modules outside the chip.

[0144] In aspect 39, an embodiment of the present application provides a communication system, the communication system comprising: a terminal and a network device, wherein the terminal is used to execute the method in the first aspect and any possible implementation thereof, and the network device is used to execute the method in the second aspect and any possible implementation thereof.

[0145] In the fortieth aspect, an embodiment of the present application provides a communication system, the communication system comprising: a terminal and a network device, wherein the terminal is used to execute the method in the third aspect and any possible implementation thereof, and the network device is used to execute the method in the fourth aspect and any possible implementation thereof.

[0146] In the forty-first aspect, an embodiment of the present application provides a communication system, the communication system comprising: a terminal and a network device, wherein the terminal is used to execute the method in the fifth aspect and any possible implementation thereof, and the network device is used to execute the method in the sixth aspect and any possible implementation thereof.

[0147] Any of the above-mentioned devices, computer storage media, computer program products, chips, or communication systems are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects of the corresponding schemes in the corresponding methods provided above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0148] Figure 1 A schematic diagram of a communication system provided in an embodiment of the present application;

[0149] Figure 2 A flowchart of capability message reporting provided in an embodiment of the present application;

[0150] Figure 3 A flow chart of a communication method provided in an embodiment of the present application;

[0151] Figure 4 A flowchart of another communication method provided in an embodiment of the present application;

[0152] Figure 5 A flowchart of another communication method provided in an embodiment of the present application;

[0153] Figure 6 A schematic diagram of a dual connection architecture provided in an embodiment of the present application;

[0154] Figure 7 A flowchart of a method for configuring an uplink antenna switching function provided in an embodiment of the present application;

[0155] Figure 8 A flowchart of another communication method provided in an embodiment of the present application;

[0156] Fig. 9 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0157] Fig.10 A schematic diagram of the structure of a communication device provided in an embodiment of the present application;

[0158] Fig.11 A schematic diagram of the structure of a chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0159] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first" and "second" are used to distinguish the same items or similar items with basically the same functions and effects. For example, the first capability information and the second capability information are only for distinguishing different capability information, and do not limit their order. Those skilled in the art can understand that the words "first" and "second" do not limit the quantity and execution order, and the words "first" and "second" do not necessarily limit them to be different.

[0160] It should be noted that, in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0161] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can appreciate that with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0162] In the present application, "at least one" means one or more, and "plurality" 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. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, c can be single or multiple.

[0163] like Figure 1 As shown, Figure 1 A communication system applicable to a communication method is provided for an embodiment of the present application, the communication system comprising: a network device 100 and one or more terminals 200 ( Figure 1 In the figure, one terminal 200 is taken as an example).

[0164] The network device 100 may communicate with one or more terminals 200 in a wireless manner.

[0165] The terminal 200 in the embodiment of the present application supports one or more frequency band combinations, each of which includes at least one frequency band. Among the one or more frequency band combinations, one or more frequency band combinations may have the same frequency band, and the capabilities of the same frequency band in different frequency band combinations may be the same or different, which is not limited in the embodiment of the present application.

[0166] For example, one frequency band combination includes frequency band A supporting uplink communication capability, but the frequency band A may not support uplink communication capability in another frequency band combination.

[0167] 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 The embodiment of the present application does not limit the number of the sending device 100 and the receiving device 200 included in the communication system.

[0168] Terminal 200 is a device with wireless communication function, which can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted, and can also be a sensor-type device. It can also be deployed on the water surface (such as ships, etc.). It can also be deployed in the air (for example, on airplanes, balloons, and satellites). The terminal can also be called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, wireless communication equipment (Wireless Telecom Equipment), user agent, user equipment or user device. The terminal 200 may be a station (STA) in a wireless local area network (WLAN), a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, and a terminal in a next-generation communication system (e.g., a fifth-generation (5G) communication network) or a terminal in a future-evolved public land mobile network (PLMN) network, etc. Among them, 5G can also be referred to as a new radio (NR).

[0169] In addition, the terminal 200 can also be: a wearable device, which is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, etc., as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring. For example, smart watches, smart bracelets, pedometers, etc. Vehicle-mounted equipment (e.g., automobiles, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, smart home equipment (e.g., refrigerators, televisions, air conditioners, electric meters, etc.), intelligent robots, workshop equipment, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, flight equipment (e.g., intelligent robots, hot air balloons, drones, airplanes), etc. In this application, for the sake of ease of description, chips deployed in the above-mentioned devices, such as system-on-a-chip (SOC), baseband chips, etc., or other chips with communication functions can also be referred to as terminals.

[0170] The network device 100 is an entity that can be used to transmit or receive signals in cooperation with the terminal 200. For example, it can be an access point (AP) in a WLAN, an evolved Node B (eNB or eNodeB) in a long-term evolution (LTE), or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device in a future 5G network (also referred to as a new radio (NR)) or a network device in a future evolved PLMN network, etc.

[0171] The network device in the embodiment of the present application may be a base station. As an example, the network device 100 may be an evolved Node B (eNB or eNodeB) in a 4G system. The terminal 200 is a terminal that can transmit information with the eNB. As another example, the network device 100 may be a next generation Node B (gNB) in an NR system, and the terminal 200 is a terminal that can transmit information with the gNB.

[0172] After the terminal 200 accesses the network, it can report the radio capabilities (radiocapability) supported by the terminal 200 to the network device 100. For example, the terminal 200 can report the radio access capabilities supported by the terminal 200 to the network device 200 through a dedicated terminal capability message (UECapabilityInformation). The terminal capability message may include the capabilities of the terminal in one or more radio access technologies (radio access technologies, RAT). Figure 2 This is a schematic flow chart of the terminal 200 sending a terminal capability message to the network device 100 according to an embodiment of the present application. The terminal capability message may be the terminal wireless access capability information. Figure 2 The steps include step 201 and step 202, which are described in detail below.

[0173] Step 201: The network device 100 sends a first request message to the terminal 200. Correspondingly, the terminal 200 receives the first request message from the network device 100. The first request message is used to request the terminal 200 to send the wireless access capability of the terminal 200 in a certain RAT / s.

[0174] As an example, the terminal capability request message may also carry filtering information, where the filtering information is used to filter the capabilities of the terminal.

[0175] For example, the first request message may be a terminal capability request (UEcapabilityenquiry) message.

[0176] Step 202: The terminal 200 sends a terminal capability message to the network device 100. Correspondingly, the network device 100 receives the terminal capability message of the terminal 200. The terminal capability message includes the radio access capability information of the terminal 200 in a certain RAT.

[0177] The wireless access capability information of the terminal may include, for example, one or more of the following parameters: packet data convergence protocol (PDCP) parameters, radio link control (RLC) parameters, media access control (MAC) parameters, physical layer parameters, radio frequency parameters, or measurement parameters. These capability parameters specifically correspond to capabilities such as band combination, supported carrier aggregation bandwidth level (ca-bandwidth class), modulation and coding scheme, and other capability information. The above-mentioned capability parameters or capability information are example capability parameters or capability information, and the specific and complete capability information is not described in detail in the embodiments of this application. Specifically, the wireless access capability includes SRS antenna switching capability (sounding reference signal antenna switch, srs-TxSwitch) and uplink antenna switching capability (uplinkTxSwitching).

[0178] Exemplarily, taking the case where the wireless access capability includes the SRS antenna switching capability, the terminal capability message includes reporting the SRS antenna switching capability for each frequency band in one or more frequency band combinations (BC) supported by the terminal 200 .

[0179] The SRS antenna switching capability includes: the switching transmitting antenna port (TxPortSwitch), the impact of the frequency band using the SRS antenna switching capability on other downlink (DL) frequency bands (bands) in the frequency band combination (txSwitchImpactToRx), and the impact of the frequency band using the SRS antenna switching capability on other uplink (UL) bands in the frequency band combination (txSwitchWithAnotherBand). The network device 100 can configure the corresponding destination SRS resources for the SRS antenna switching for the terminal 200 according to the SRS antenna switching capability reported by the terminal 200.

[0180] Exemplarily, taking the wireless access capability including the uplink antenna switching capability as an example, the terminal can also report the frequency band combination supporting the super uplink capability to the network device. For the frequency band combination supporting the super uplink capability, the terminal screens out all the frequency bands in the frequency band combination that contain the uplink carrier, and for the frequency band pairs consisting of any two frequency bands in all the frequency bands containing the uplink carrier, the terminal reports the switching duration corresponding to all the frequency band pairs. The so-called switching duration is the duration of switching between the first uplink carrier corresponding to one frequency band in the frequency band pair and the second uplink carrier corresponding to the other frequency band in the frequency band pair.

[0181] It should be noted that, in a scenario where the terminal 200 can actively send a terminal capability message to the network device 100, step 201 can be omitted.

[0182] The scenario in which the terminal is connected to two network devices with different access technologies can be called Multi-RAT Dual Connectivity (MR-DC). Taking the network device as a base station as an example, when the base station in the evolved universal radio terrestrial access (evolved UTRA, E-UTRA) system serves as the master base station (Master Node, MN) and the base station in the new radio (New Radio, NR) system serves as the secondary base station (Secondary Node, SN), the scenario is specifically called E-UTRA-NR Dual Connectivity (E-UTRA-NR Dual Connectivity, EN-DC) in MR-DC. When the base station in the NR system serves as the master base station and the base station in the E-UTRA system serves as the secondary base station, the scenario is specifically called NR-E-UTRA Dual Connectivity (NR-E-UTRA Dual Connectivity, NE-DC) in MR-DC.

[0183] Since the NR system operates at a higher frequency band and the terminal has a lower transmit power, the terminal at the edge of the cell covered by the base station in the NR system can receive the signal of the base station, but the base station may not be able to receive the uplink signal sent by the terminal, that is, there is a problem of asymmetric uplink and downlink coverage. In order to solve this problem, a low-frequency band (such as the LTE band) can be used to assist the terminal in uplink transmission. In other words, the terminal has two spectrums (for example, the LTE band and the NR band) for uplink transmission. Among them, the uplink transmission of the terminal on the low-frequency band can be called supplementary uplink (SUL). In order to facilitate the distinction between the uplink transmission on the LTE band and the NR band, the uplink transmission of the terminal on the original higher frequency band (for example, the NR band) is called normal uplink (NUL). It can be understood that the low-frequency band can refer to the LTE band. The NR band is higher than the LTE band.

[0184] In EN-DC / NE-DC scenarios, NR carrier aggregation scenarios, and SUL scenarios, the terminal may work on two (or more) uplink carriers at the same time. For example, the terminal sends uplink data on uplink carrier 1 in the LTE system and uplink carrier 2 in the NR system (EN-DC / NE-DC scenarios). The terminal sends uplink data on uplink carrier 1 in the NR system and uplink carrier 2 in the NR system (NR carrier aggregation scenarios). The terminal sends uplink data on the SUL carrier (uplink carrier 1) and the NUL carrier (uplink carrier 2) (SUL scenario). Without using the uplink antenna switching capability (also known as the uplink antenna switching function), the terminal can use one transmission port 1 (Transmission port, TX port) in the internal RF hardware to send data on one of the uplink carriers 1, and use another transmission port 2 in the internal RF hardware to send data on another uplink carrier 2.

[0185] The so-called uplink antenna switching capability means that when there is no uplink data to be sent on uplink carrier 1, the TX port associated with uplink carrier 1 can be borrowed to uplink carrier 2 for data transmission. At this time, uplink carrier 2 can use two TX ports to send data. In other words, the TX port inside the terminal can be switched between two or more uplink carriers. Among them, due to the implementation of the RF hardware inside the terminal, there may be a certain switching time when the TX port switches between the two uplink carriers, such as 0 microseconds (us), 35us, 140us, etc. It can be understood that the amount of data sent by the terminal using two TX ports is larger than that using one TX port to send data, thereby increasing the throughput of uplink data transmission.

[0186] Regarding SRS antenna conversion capability:

[0187] If the terminal has the SRS antenna switching capability and the carrier switching capability, when carrier switching occurs, that is, after the terminal switches from carrier 1 of band A in BC1 to carrier 2 of band B in BC1, the SRS antenna switching capability of the terminal in BC1 should be determined by the parameters of the SRS antenna switching capability on band B. However, during the carrier switching process, the following situation may exist: band A supports uplink carrier capability / uplink communication capability in BC1, and band B does not support uplink carrier capability / uplink transmission capability in BC1. However, the SRS antenna switching capability belongs to the uplink capability, so the terminal reports the parameters of the SRS antenna switching capability of band A in BC1 to the network device, but does not report the parameters of band B not having the SRS antenna switching capability in BC1. The terminal can find another target BC, and band A in the target BC does not support uplink carrier capability / uplink communication capability, band B supports uplink carrier capability / uplink communication capability, and the other bands of the target BC except band A and band B are the same as BC1. After the terminal determines the target BC, it can know the parameters of the SRS antenna switching capability of band B in BC1 according to the parameters of the SRS antenna switching capability of band B in the target BC, thereby determining the SRS antenna switching capability of the terminal when the terminal uses band B for data transmission.

[0188] Although the terminal can obtain the target BC to determine the SRS antenna switching capability of BC1 after carrier switching, the terminal usually reports multiple BCs to the network device, and even the same BC may support multiple capabilities. Therefore, the process for the network device to find the target BC after carrier switching is relatively complicated and difficult to implement.

[0189] It should be noted that band B does not support uplink carrier capability / uplink communication capability in a certain frequency band combination x, which means that the terminal may not be able to perform normal uplink data transmission on band B in the frequency band combination x, but the terminal can send SRS reference signal on band B in the frequency band combination x for downlink channel estimation.

[0190] For the uplink antenna switching capability scenario described above, since a transmit port (TXport) 1 under a BC can be switched from one carrier a to another carrier b (i.e., carrier b can borrow TX port 1 of carrier a, so that carrier b uses TX port 1 and TX port 2 owned by carrier b for uplink transmission), currently, however, the terminal reports the uplink antenna capabilities of 1T+1T and 0T+2T under a BC separately. For example, two different BC capability information (BC identifier + capability) will be reported for a BC combination (BandA+BandB). For example, one BC capability information is: BC includes Band A+BandB, and the uplink antenna capability of Band A is 1T, and the uplink antenna capability of Band B is 1T. The other BC capability information is: BC includes Band A+BandB, and the uplink antenna capability of Band A is 0T, and the uplink antenna capability of Band B is 2T. Therefore, when the network device needs to switch the uplink antenna capability of Band A+BandB from 1T+1T to 0T+2T, it needs to find the target BC capability information first. It often needs to match the current BC capability information with the Band identifier and uplink capability parameters of other BC capability information. Therefore, the process of the network device finding the target BC capability information is relatively complicated.

[0191] Based on this, an embodiment of the present application provides a communication method, in which a terminal sends first indication information to a network device, and since the first indication information is used to indicate the association between the first frequency band combination and the second frequency band combination, it is convenient for the network device to determine the mapping relationship between the frequency band combinations supported by the terminal after receiving the first indication information, so that the network device can find multiple associated frequency band combinations through clear indication of the association relationship. Subsequently, when the terminal switches from a frequency band A with SRS antenna switching capability in the first frequency band combination to a frequency band B without SRS antenna switching capability in the first frequency band combination, the network device can determine the SRS antenna switching capability of the first frequency band combination after the frequency band change according to the SRS antenna switching capability supported by the second frequency band combination associated with the first frequency band combination (the second frequency band combination includes the frequency band B, and the frequency band B supports the SRS antenna switching capability in the second frequency band combination), so that the network device accurately allocates SRS resources to the first frequency band combination, which can simplify the operation of the network device compared with the prior art in which the network device does not know the association relationship between the frequency band combinations and searches one by one from the multiple frequency band combinations reported by the terminal to determine the second frequency band combination. On the other hand, when the subsequent network device determines that the terminal switches the uplink antenna capability of Band A+BandB from 1T+1T to 0T+2T, it can quickly find the 0T+2T associated with the uplink antenna capability 1T+1T of Band A+BandB based on the association relationship between the capabilities of the frequency band combinations. The specific process can be found in the following Figure 3 to Figure 5 The description in will not be repeated here.

[0192] In the embodiment of the present application, the specific structure of the execution subject of a communication method is not particularly limited in the embodiment of the present application, as long as the program that records the code of a communication method of the embodiment of the present application can be run to communicate according to a communication method of the embodiment of the present application. For example, the execution subject of a communication method provided in the embodiment of the present application may be a functional module in a terminal that can call and execute a program, or a communication device applied to a terminal, such as a chip, a chip system, an integrated circuit, etc. These chips, chip systems, and integrated circuits may be arranged inside the terminal or may be independent of the terminal, and the embodiment of the present application is not limited. The execution subject of a communication method provided in the embodiment of the present application may be a functional module in a network device that can call and execute a program, or a communication device applied to a network device, such as a chip, a chip system, an integrated circuit, etc. These chips, chip systems, and integrated circuits may be arranged inside the network device or may be independent of the network device, and the embodiment of the present application is not limited. The following embodiment is described by taking the execution subject of a communication method as a terminal and a network device as an example.

[0193] like Figure 3 As shown, Figure 3 An embodiment of a communication method interaction provided by an embodiment of the present application is shown, and the method includes:

[0194] Step 301: The terminal determines that a capability of a first frequency band combination supported by the terminal is associated with a capability of a second frequency band combination.

[0195] The capability of the first frequency band combination is associated with the capability of the second frequency band combination, which can also be understood as the first frequency band combination supporting the first capability is associated with the second frequency band combination supporting the second capability.

[0196] On the one hand I, the first frequency band combination and the second frequency band combination can be the same frequency band combination, but the first frequency band combination and the second frequency band combination have different capabilities.

[0197] For example, taking the first frequency band combination and the second frequency band combination as the same frequency band combination, the capability of the first frequency band combination is capability 1, and the capability of the second frequency band combination is capability 2, the terminal can determine the different capability associations of the same frequency band combination, that is, the terminal determines the association between capability 1 and capability 2 belonging to the same frequency band combination.

[0198] The so-called same frequency band combination may mean that all frequency bands included in the first frequency band combination are the same as all frequency bands included in the second frequency band combination.

[0199] For example, the first frequency band combination includes frequency band A and frequency band B, and the second frequency band combination also includes frequency band A and frequency band B. It should be noted that if frequency band A and frequency band B are all frequency bands in the first frequency band combination, and frequency band A and frequency band B are also all frequency bands in the second frequency band combination, then the first frequency band combination and the second frequency band combination are the same frequency band combination. The first frequency band combination and the second frequency band combination include the same number of frequency bands, for example: one or more (for example: 2, 3, 4, etc.), which is not limited in the embodiments of the present application.

[0200] In a possible implementation, in the embodiment of the present application, the same frequency band has the same capability in different frequency band combinations. For example, frequency band A and frequency band B have the same capability in the first frequency band combination and the second frequency band combination.

[0201] In a possible implementation, the same frequency band in the embodiment of the present application has different capabilities in different frequency band combinations. For example, taking the capability of the frequency band as SRS antenna switching capability, the capability of frequency band A in the first frequency band combination is to support SRS antenna switching capability, frequency band B does not have SRS antenna switching capability in the first frequency band combination, frequency band A does not have SRS antenna switching capability in the second frequency band combination, frequency band B has SRS antenna switching capability in the second frequency band combination, frequency band A and frequency band B are all frequency bands in the first frequency band combination, and frequency band A and frequency band B are also all frequency bands in the second frequency band combination, then the first frequency band combination and the second frequency band combination can be considered to be the same frequency band combination.

[0202] Taking the frequency band capability as the uplink antenna switching capability as an example, it is assumed that the frequency band capability information determined by the terminal is as shown in Table 1, that is: the terminal reports 4 BC capability information (in the specific implementation process, other quantities of BC capability information can also be reported, for example: 8, 16, 32, etc., which are not limited in the embodiments of the present application), wherein the capability corresponding to the first frequency band combination is, for example, BC capability information 1, and the capability corresponding to the second frequency band combination is, for example, BC capability information 2. The terminal determines that Band B in BC information 2 can reuse the antenna of Band A, so BC capability information 1 is associated with BC capability information 2, for example: the terminal sets the indexes (index) of BC capability information 1 and BC capability information 2 to 1.

[0203] Table 1

[0204]

[0205] Among them, for multiple pieces of capability information of a frequency band combination, the terminal may determine some of the associations, or may determine all of the associations. For example, for the frequency band combination BandA+BandB, the terminal reports four pieces of frequency band capability information, namely: frequency band capability information 1, frequency band capability information 2, frequency band capability information 3, and frequency band capability information 4. Then the terminal may determine that frequency band capability information 1 is associated with frequency band capability information 3, and frequency band capability information 2 and frequency band capability information 4 are not associated with these two. For the capability information of different frequency band combinations, the terminal may determine their association, or may determine that they are not associated.

[0206] The so-called that the first frequency band combination and the second frequency band combination have different capabilities may mean that the capability of the first frequency band combination is completely different from the capability of the second frequency band combination, or the capability of the first frequency band combination is partially the same as and partially different from the capability of the second frequency band combination.

[0207] In the embodiment of the present application, as an example, the capability of the above frequency band combination may include one or more of SRS antenna switching capability or uplink antenna switching capability. Of course, the capability of the frequency band combination may also include other capabilities, which are not limited in the embodiment of the present application.

[0208] Assuming that the capabilities of the first frequency band combination are SRS antenna conversion capability 1 and uplink antenna switching capability 1, and the capabilities of the second frequency band combination are SRS antenna conversion capability 2 and uplink antenna switching capability 2, it can be considered that the capabilities of the first frequency band combination are completely different from those of the second frequency band combination.

[0209] Assuming that the capabilities of the first frequency band combination are SRS antenna conversion capability 1 and uplink antenna switching capability 1, and the capabilities of the second frequency band combination are SRS antenna conversion capability 1 and uplink antenna switching capability 2, it can be considered that the capabilities of the first frequency band combination are partially the same and partially different from the capabilities of the second frequency band combination.

[0210] On the other hand II, the first frequency band combination and the second frequency band combination can be different frequency band combinations. The so-called different frequency band combinations can refer to that there is at least one different frequency band in all the frequency bands included in the first frequency band combination and all the frequency bands included in the second frequency band combination, or the number of frequency bands included in the first frequency band combination is different from that in the second frequency band combination, the frequency bands in the first frequency band combination are a subset of the frequency bands in the second frequency band combination (or the frequency bands in the second frequency band combination are a subset of the frequency bands in the first frequency band combination), the frequency bands of the first frequency band combination and the frequency bands of the second frequency band combination have an intersection and also have frequency bands outside the intersection, the frequency bands of the first frequency band combination and the frequency bands of the second frequency band combination are completely different, and so on.

[0211] For example, the first frequency band combination includes frequency band A and frequency band B, and the second frequency band combination includes frequency band A and frequency band C, so the first frequency band combination and the second frequency band combination can be considered to be different frequency band combinations. Alternatively, the first frequency band combination includes frequency band A, frequency band B, and frequency band D, and the second frequency band combination includes frequency band A, frequency band C, and frequency band B, so the first frequency band combination and the second frequency band combination can be considered to be different frequency band combinations.

[0212] For example, taking the first frequency band combination and the second frequency band combination as different frequency band combinations, the capability of the first frequency band combination is capability 11, and the capability of the second frequency band combination is capability 21, the terminal can determine that the capability 11 of the first frequency band combination is associated with the capability 21 of the second frequency band combination.

[0213] For example, taking the first frequency band combination and the second frequency band combination as different frequency band combinations, the capabilities of the first frequency band combination include capability 11 and capability 12, and the capabilities of the second frequency band combination include capability 21, capability 22 and capability 23, the terminal can determine that capability 11 of the first frequency band combination is associated with capability 22 of the second frequency band combination, or the terminal can determine that capability 12 of the first frequency band combination and capability 22 and capability 23 of the second frequency band combination are associated.

[0214] In summary, the first frequency band combination and the second frequency band combination may be the same or different.

[0215] It should be noted that the terminal determines that the capability of the first frequency band combination supported by the terminal is associated with the capability of the second frequency band combination, which can be understood as: all capabilities of the first frequency band combination are associated with all capabilities of the second frequency band combination, or the first frequency band combination is associated with partial capabilities of the second frequency band combination.

[0216] For example, the terminal determines that the wireless access capability 1 of the first frequency band combination supported by the terminal is associated with the wireless access capability 2 of the second frequency band combination, and the wireless access capability may include the SRS antenna switching capability and / or the uplink antenna switching capability. Specifically, it can be understood that the terminal determines that the SRS antenna switching capability of the first frequency band combination supported by the terminal is associated with the SRS antenna switching capability of the second frequency band combination, and / or the terminal determines that the uplink antenna switching capability of the first frequency band combination supported by the terminal is associated with the uplink antenna switching capability of the second frequency band combination.

[0217] The first frequency band combination and the second frequency band combination in the embodiment of the present application may be all frequency band combinations or part of frequency band combinations among all frequency band combinations supported by the terminal, which is not limited in the embodiment of the present application. The number of the second frequency band combination may be one or more, which is not limited in the embodiment of the present application.

[0218] As a possible implementation manner, the association between the first frequency band combination and the second frequency band combination may mean that: the first frequency band combination and the second frequency band combination have the same frequency band, that is, a certain frequency band X included in the first frequency band combination, and the second frequency band combination also includes the certain frequency band X. It can also be understood that: one or more frequency bands included in the first frequency band combination and one or more frequency bands included in the second frequency band combination partially overlap or completely overlap.

[0219] Exemplarily, one or more frequency bands included in the first frequency band combination and one or more frequency bands included in the second frequency band combination all overlap, which can also mean: the first frequency band combination includes multiple frequency bands, and the second frequency band combination also includes the multiple frequency bands. In other words, the first frequency band combination and the second frequency band combination are the same frequency band combination.

[0220] Exemplarily, the partial overlap between the multiple frequency bands included in the first frequency band combination and one or more frequency bands included in any second frequency band combination may also mean that: all frequency bands included in the second frequency band combination may be some frequency bands among the multiple frequency bands included in the first frequency band combination, or the multiple frequency bands included in the first frequency band combination may be some frequency bands among all frequency bands included in the second frequency band combination.

[0221] It can be understood that the above is only a possible example of the capability association of BC, and of course the terminal can also determine the capability association of BC according to needs or standard protocols.

[0222] The following will describe the relationship between the capabilities of multiple second frequency band combinations when there are multiple second frequency band combinations, divided into case a and case b.

[0223] Case a: There may be two or more second frequency band combinations whose capabilities are associated with each other. Alternatively, there may be two or more second frequency band combinations whose capabilities are associated with each other and have the same frequency band.

[0224] For example, the plurality of second frequency bands are combined into BC21 and BC22, wherein BC21 and BC22 are associated. For example, both BC21 and BC22 have frequency band 21, and the frequency band 21 has different capabilities in the BC21 and BC22.

[0225] For example, the plurality of second frequency band combinations are BC21 and BC22, wherein the capability of BC21 is capability 211, and the capability of BC22 is capability 222. On the one hand, capability 222 is the same as capability 211, or capability 222 and capability 211 are associated capabilities, and the capability of BC21 and the capability of BC22 are associated. Capability 211 may be all or part of the capability of BC21, and capability 222 may be all or part of the capability of BC22.

[0226] It should be noted that if BC21 supports the SRS antenna switching capability, BC22 also supports the SRS antenna switching capability. If BC21 and BC22 include different frequency bands, it can also be considered that the capability of BC21 is associated with the capability of BC22.

[0227] Case b: the capabilities of the plurality of second frequency band combinations are not related to each other.

[0228] For example, the plurality of second frequency bands are combined into BC22 and BC23, wherein there is no correlation between the capability of BC21 and the capability of BC23.

[0229] Combining situation a and situation b, it can be seen that the terminal can not only determine whether the capability of the first frequency band combination is associated with the capability of one or more second frequency band combinations, but also determine whether the capabilities of multiple second frequency band combinations are associated.

[0230] It is worth noting that, no matter whether the capabilities of the multiple second frequency band combinations are associated with each other, the capability of the first frequency band combination is associated with the capabilities of the multiple second frequency band combinations.

[0231] Taking the first frequency band combination as BC11 as an example, in case a, the capability of BC11 is associated with the capability of BC21, and the capability of BC11 is associated with the capability of BC22.

[0232] In case b, the capability of BC11 is associated with the capability of BC22, and the capability of BC11 is associated with the capability of BC23, but the capability of BC22 and the capability of BC23 are not associated.

[0233] In the embodiment of the present application, the terminal may determine, according to a predefined protocol, an association between a first frequency band combination and one or more second frequency band combinations having the same frequency band.

[0234] Step 302: The terminal sends first indication information to the network device, and correspondingly, the network device receives the first indication information from the terminal.

[0235] The first indication information is, for example: a preset bit, and the bit value of the bit is used to indicate the association between the capability of the first frequency band combination and the capability of the second frequency band combination.

[0236] The first indication information is used to indicate the association between the capability of the first frequency band combination and the capability of the second frequency band combination.

[0237] As an example, the terminal in the embodiment of the present application may send the first indication information in the process of reporting to the network device the frequency band capability (for example, SRS antenna switching capability, or uplink antenna switching capability) supported by each frequency band included in at least one frequency band combination (for example, the first frequency band combination and the second frequency band combination) of one or more frequency band combinations supported by the terminal, so that the network device can determine the association relationship between the capabilities of the frequency band combinations, or the terminal in the embodiment of the present application may send the first indication information when interacting with other messages of the network device. Alternatively, the terminal may send the first indication information to the network device based on the request of the network device. Or the terminal may actively send the first indication information to the network device.

[0238] As a possible implementation, step 302 may be implemented in the following manner: the terminal sends a first message to the network device, and correspondingly, the network device receives the first message from the terminal. The first message includes the first indication information.

[0239] Exemplarily, the first message may be: Figure 2 The terminal capability message is shown.

[0240] For example, a network device can be Figure 1 A network device 100 is shown.

[0241] Step 303: The network device determines the association between the capability of the first frequency band combination and the capability of the second frequency band combination according to the first indication information.

[0242] For the specific implementation of step 302 and step 303, please refer to the relevant descriptions in the following examples 1 to 3, which will not be repeated here.

[0243] The embodiment of the present application provides a communication method, in which a terminal sends first indication information to a network device, and since the first indication information is used to indicate the association between the capability of a first frequency band combination and the capability of a second frequency band combination, it is convenient for the network device to determine the mapping relationship between the capabilities of the frequency band combinations supported by the terminal after receiving the first indication information, so that the network device can find multiple frequency band combinations capable of association through clear indication of the association relationship. Subsequently, when the terminal switches from a frequency band A with SRS antenna switching capability in the first frequency band combination to a frequency band B without SRS antenna switching capability in the first frequency band combination, the network device can determine the SRS antenna switching capability of the first frequency band combination after the frequency band change occurs based on the SRS antenna switching capability supported by the second frequency band combination associated with the capability of the first frequency band combination (the second frequency band combination includes the frequency band B, and the frequency band B supports the SRS antenna switching capability in the second frequency band combination), so that the network device can accurately allocate SRS resources to the first frequency band combination. This can simplify the operation of the network device compared to the prior art in which the network device does not know the association between the frequency band combinations, and searches one by one from multiple frequency band combinations reported by the terminal to determine the second frequency band combination.

[0244] It should be noted that the SRS antenna conversion capability is an uplink capability among the uplink carrier capability or the uplink communication capability. If a frequency band of the frequency band combination has the SRS antenna conversion capability, it can be considered that the frequency band of the frequency band combination has the uplink carrier capability or the uplink communication capability. If a frequency band of the frequency band combination does not have the SRS antenna conversion capability, it is possible that the frequency band of the frequency band combination does not have the uplink carrier capability or the uplink communication capability, or the frequency band of the frequency band combination has the uplink carrier capability or the uplink communication capability but does not have the SRS antenna conversion capability.

[0245] It should be noted that the uplink antenna switching capability is a type of uplink capability among the uplink carrier capability or the uplink communication capability. If a frequency band of the frequency band combination has the uplink antenna switching capability, it can be considered that the frequency band of the frequency band combination has the uplink carrier capability or the uplink communication capability. If a frequency band of the frequency band combination does not have the uplink antenna switching capability, it is possible that the frequency band of the frequency band combination does not have the uplink carrier capability or the uplink communication capability, or the frequency band of the frequency band combination has the uplink carrier capability or the uplink communication capability but does not have the uplink antenna switching capability.

[0246] Since the content of the first indication information is different in different situations, the specific implementations of step 302 and step 303 are different, so the following will be introduced in Examples 1 to 3 respectively:

[0247] Example 1: The first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator.

[0248] In Example 1, the method provided by the embodiment of the present application may further include, before step 303: the network device determines the capability association of multiple frequency band combinations having the same indicator.

[0249] As a possible implementation, in the embodiment of the present application, the network device determines the association of multiple frequency band combinations with the same indicator, including: the network device determines the capability association of multiple frequency band combinations with the same indicator according to a predefined protocol. In other words, the predefined protocol indicates the capability association of multiple frequency band combinations with the same indicator.

[0250] As another possible implementation manner, in the embodiment of the present application, the network device determines the capability association of multiple frequency band combinations with the same indicator, including: the network device and the terminal negotiate in advance the capability association of multiple frequency band combinations with the same indicator.

[0251] As another possible implementation, the communication method provided in the embodiment of the present application may further include: the terminal sends second indication information to the network device, and accordingly, the network device receives the second indication information from the terminal. The second indication information is used to indicate the association of multiple frequency band combinations with the same indicator. So that the network device determines the ability to associate multiple frequency band combinations with the same indicator according to the second indication information.

[0252] The first indication information and the second indication information in the embodiment of the present application may be carried in the same message, or the first indication information and the second indication information may be carried in different messages, which is not limited in the embodiment of the present application.

[0253] In Example 1, step 303 in the embodiment of the present application can be implemented in the following manner: the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator, and the network device determines that the capability of the first frequency band combination is associated with the capabilities of the one or more second frequency band combinations.

[0254] The following will describe the meaning of the association between the frequency band combination and the first indicator in combination with Case 21 and Case 22 respectively:

[0255] Case 21: In the embodiment of the present application, the capability of the first frequency band combination is associated with the first indicator, which may mean that the first capability information of the first frequency band combination includes the first indication information. The capability of the second frequency band combination is associated with the first indicator, which may mean that the second capability information of the second frequency band combination includes the first indication information. The first capability information is used to indicate the capability of the first frequency band combination, and the second capability information is used to indicate the capability of the second frequency band combination.

[0256] As shown in Table 2, taking the first indicator being "00" as an example, the first indicator carried in the first capability information is 00, and the first indicator carried in the second capability information is also 00.

[0257] Table 2

[0258] Frequency band combination Capability Information First frequency band combination First capability information (00) Second frequency band combination Second capability information (00)

[0259] For example, the first capability information may include the SRS antenna switching capability and / or the uplink antenna switching capability supported by the first frequency band combination. The second capability information may include the SRS antenna switching capability and / or the uplink antenna switching capability supported by the second frequency band combination.

[0260] Then, in Example 1, step 302 in the embodiment of the present application can be implemented in the following manner: the terminal sends first capability information and second capability information to the network device, and the first capability information and the second capability information both include first indication information.

[0261] As a possible implementation manner, the first capability information and the second capability information may be carried in the same message, so as to be sent by the terminal to the network device.

[0262] For example, take the first frequency band combination as frequency band combination 1, one or more second frequency band combinations as M-1 frequency band combinations (for example, frequency band combination 2 to frequency band combination M), and the first indicator as "1", where M is an integer greater than or equal to 2. If the capability information of different frequency band combinations can be carried in the same message, then step 302 can be implemented in the following manner: the terminal sends an uplink message 1 to the network device. The uplink message 1 includes: the first capability information of frequency band combination 1, the second capability information of frequency band combination 2, ..., and the Mth capability information of frequency band combination M. Among them, the first capability information of frequency band combination 1, the second capability information of frequency band combination 2, ..., and the Mth capability information of frequency band combination M in message 1 all carry "1", so that the network device can determine the other frequency band combinations associated with each frequency band combination when determining the respective capabilities of each frequency band combination. Of course, the first indicator can also be an integer value within a certain range, and the first indicator can also be a letter or other identifier, which is not limited in the embodiment of the present application.

[0263] As a possible implementation manner, if the capability information of different frequency band combinations can be carried in different messages, then the above step 302 specifically includes:

[0264] Step 1: The terminal sends a message 1 to a network device. The message 1 carries first capability information of a frequency band combination 1. The first capability information carries a first indicator.

[0265] Step 2: The terminal sends a message 2 to the network device. The message 2 carries second capability information of the frequency band combination 2. The second capability information carries the first indicator.

[0266] …

[0267] Step M: The terminal sends a message M to the network device. The message M carries the Mth capability information of the frequency band combination M. The Mth capability information carries the first indicator.

[0268] It should be understood that the terminal may send the above messages 1 to M to the network device in sequence, that is, the terminal sends the message to the network device M times, or the terminal sends the above messages 1 to M to the network device once, which is not limited in the embodiment of the present application.

[0269] It is worth noting that the above example takes the information of one frequency band combination carried in each message. In the actual process, for example, message 1 may also carry the second capability information of frequency band combination 2, and message 2 may be omitted at this time.

[0270] The messages involved in the above situation 21 can be as follows: Figure 2 The terminal capability message is shown.

[0271] The above situation 21 takes the case where the first indication information is located in the capability information of each frequency band combination as an example. Of course, the first indication information may also be located outside the capability information of each frequency band combination, that is, the capability information of each frequency band combination does not include the above first indication information. The following will be combined with situation 22 to describe the case where the capability information of each frequency band combination does not include the above first indication information.

[0272] Case 22: In the embodiment of the present application, the capability of the first frequency band combination is associated with the first indicator, which may mean that there is a corresponding relationship between the capability of the first frequency band combination and the first indicator. The capability of the second frequency band combination is associated with the first indicator, which may mean that there is a corresponding relationship between the capability of the second frequency band combination and the first indicator.

[0273] For example, a terminal may send a first message to a network device, and the first message includes first capability information supported by a first frequency band combination, and a first indicator. In other words, the first capability information supported by the first frequency band combination, the identifier of the first frequency band combination, and the first indicator may be carried in the same message, and the first indicator is located outside the first capability information, which can reduce the signaling interaction between the terminal and the network device. The terminal may send a second message to the network device, and the second message includes the capability of the second frequency band combination and the first indicator. In other words, the second capability information supported by the second frequency band combination, the capability of the second frequency band combination, and the first indicator may be carried in the same message, and the first indicator is located outside the second capability information.

[0274] The first message and the second message may be the same message. For example, the first message may be the terminal capability message (UECapabilityInformation).

[0275] In summary, in Example 1, step 303 in the embodiment of the present application can be implemented in the following manner: the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator, and the network device determines that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0276] For example, taking the first indicator as 0001, if the capability 11 of the first frequency band combination is associated with 0001, the capability 12 of the first frequency band combination is associated with 0011, and the capability 21 of the second frequency band combination is also associated with 0001, the network device determines that the capability 11 of the first frequency band combination is associated with the capability 21 of the second frequency band combination.

[0277] Example 2: The first indication information is first identification information, and the first identification information is used to identify the capability of the second frequency band combination. The first identification information is associated with the capability of the first frequency band combination.

[0278] For example, the first identification information may be an identification of the capability of the second frequency band combination, for example, the serial number of the capability of the second frequency band combination. The capability serial number of the frequency band combination may be understood as: the position index of the frequency band combination in the list of frequency band combinations supported by the terminal reported by the terminal. For example, the list of frequency band combinations supported by the terminal reports that there are 10 frequency band combinations, and the serial number of the frequency band combination is 1, indicating that the frequency band combination is the first frequency band combination in the list of frequency band combinations, and the serial number of the frequency band combination is 2, indicating that the frequency band combination is the second frequency band combination in the list of frequency band combinations, and so on. Or the first identification information may be an identification of a capability of the second frequency band combination. The following description of the serial number of the frequency band combination may refer to the description here, and will not be repeated later.

[0279] It should be noted that, if there are multiple second frequency band combinations, the first indication information includes first identification information of each second frequency band combination in the multiple second frequency band combinations.

[0280] For example, the multiple second frequency band combinations are BC21 and BC22, the sequence number of BC21 is 001, the sequence number of BC22 is 011, and 001 and 011 are both associated with the first frequency band combination, then the first indication information may be 001 or 011.

[0281] It is understandable that the first indication information may also be second identification information, and the second identification information is used to identify the first frequency band combination. The second identification information is associated with the second frequency band combination. For example, the second identification information may be an identifier of the first frequency band combination, for example, a serial number of the first frequency band combination.

[0282] It should be noted that, on the one hand, the terminal can send the third capability information of the first frequency band combination to the network device, and the third capability information includes the first identification information of each second frequency band combination in one or more second frequency band combinations, and the first indication information is the first identification information of each second frequency band combination. On the other hand, the terminal can send the second capability information of the second frequency band combination to the network device, and the second capability information includes the second identification information of the first frequency band combination, and the first indication information is the second identification information. On the other hand, the terminal can send the second capability information of the second frequency band combination and the third capability information of the first frequency band combination to the network device, wherein the third capability information includes the first identification information of the second frequency band combination, and the second capability information includes the second identification information of the first frequency band combination, and the first indication information is the second identification information for the second frequency band combination, and the first indication information is the second identification information for the first frequency band combination. Please refer to Table 3. If the terminal determines to associate the BC capability information 1 of BC1 with the sequence number 1 with the BC capability information 4 of BC4 with the sequence number 4, the first indication information corresponding to the BC capability information 1 can be set to 4, which indicates the sequence number of the frequency band combination to which BandA+BandC belongs. The first indicator corresponding to the BC4 capability information 4 is set to 1, where 1 indicates that the sequence number of the frequency band combination to which BandA+BandB (1T(BandA)+1T(BandB)) belongs is 1, and the capability information of other BCs is not associated, so the value of the corresponding first indication information can be empty or set to a default value (for example: 0).

[0283] Table 3

[0284]

[0285] It should be understood that the above Table 3 takes the BC capability information as an example to indicate that band A supports 1T communication capability and band B supports 1T communication capability. Take the BC capability information as an example to indicate that band A supports 0T communication capability and band B supports 2T communication capability. Take the BC capability information as an example to indicate that band A supports 1T communication capability and band B supports 2T communication capability. The specific content of the capability information of other frequency band combinations can be referred to the description in Table 3, which will not be repeated here.

[0286] In Example 2, step 302 in the embodiment of the present application can be implemented in the following manner: the terminal sends third capability information to the network device, and accordingly, the network device receives the third capability information from the terminal. The third capability information includes first indication information, and the third capability information is used to indicate the capability of the first frequency band combination.

[0287] The third capability information may be carried in the first message.

[0288] It can be understood that if the terminal not only sends the third capability information but also sends the fourth capability information to the network device, the first indication information carried in the third capability information is the first identification information, and the first indication information carried in the fourth capability information is the second identification information.

[0289] Then, in Example 2, step 303 in the embodiment of the present application can be implemented in the following manner: the network device determines that the first identification information is associated with the first frequency band combination, and the network device determines that the capability of the first frequency band combination is associated with the capability of the second frequency band combination. Specifically, the network device determines that the first identification information is associated with the first frequency band combination, and the first identification information is used to identify the second frequency band combination, then the network device determines that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0290] In Example 2, by carrying the first identification information in the third capability information of the first frequency band combination, it is convenient for the network device to determine the capability of the first frequency band combination according to the first capability information, and to determine the second frequency band combination associated with the first frequency band combination according to the first identification information. By carrying the second identification information in the fourth capability information of the second frequency band combination, after obtaining the fourth capability information, the network device can determine the capability of the second frequency band combination based on the fourth capability information, and can also determine the first frequency band combination associated with the second frequency band combination according to the second identification information.

[0291] It should be noted that if a second frequency band combination supports one capability, the first identification information may be the serial number of the second frequency band combination. If a second frequency band combination supports multiple capabilities, the frequency band combination corresponds to a serial number for each capability. In conjunction with Table 3, when BandA+BandB supports 1T(BandA)+1T(BandB), the BC serial number to which BandA+BandB belongs is 1, and when BandA+BandB supports 0T(BandA)+2T(BandB), the BC serial number to which BandA+BandB belongs is 2. Therefore, if the capability of band combination 1 is associated with the capability of the band combination with BC serial number 2 (0T(BandA)+2T(BandB)), the BC serial number carried in the capability information of band combination 1 is 2. If the capability of band combination 1 is associated with the capability of the band combination with BC number 1 (1T (BandA) + 1T (BandB)), the BC number carried in the capability information of band combination 1 is 1.

[0292] Example 3: The first indication information is a first list, and the first list at least includes an association relationship between the capability of the first frequency band combination and the capability of the second frequency band combination. Alternatively, the first indication information is one or more association relationships, and the one or more association relationships at least include an association relationship between the capability of the first frequency band combination and the capability of the second frequency band combination.

[0293] As an example, the first list may include one or more elements, each element being a set of capability-associated frequency band combinations, and the set of capability-associated frequency band combinations may be two mutually associated frequency band combinations or may be multiple mutually associated frequency band combinations. Specifically, the serial number of the frequency band combination may be used to indicate which specific frequency band combination it is. For example, as shown in Table 4, in addition to the header, Table 4 contains two rows, and each row contains an association with the BC capability information contained therein, and the BC capability information may be represented by the serial number of the BC, for example: in index 1, the BC capability information with serial number 1 is associated with the BC capability information with serial number 2, and in index 2, the BC capability information with serial number 3 is associated with the BC capability information with serial number 6.

[0294] Table 4

[0295]

[0296] For another example, as shown in Table 5, if the first indication information is a list as shown in Table 5, the network device can determine that frequency band combination 1 is associated with frequency band combination 2, and frequency band combination 3 is associated with frequency band combination 4 after receiving Table 5.

[0297] Table 5

[0298]

[0299] Accordingly, step 303 in the embodiment of the present application may be implemented in the following manner: the network device determines, based on the first list, that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

[0300] In a possible embodiment, the method provided by the embodiment of the present application also includes: the terminal sends a third indication information to the network device, and accordingly, the network device receives the third indication information from the terminal. The third indication information is used to indicate that the antenna switching capability of the first frequency band combination (for example, the SRS antenna switching capability) is associated with the antenna switching capability of the second frequency band combination. Alternatively, the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination. The purpose of the third indication information is to indicate the reason for the association of the capabilities of the above-mentioned first frequency band combination and the second frequency band combination. If only one capability of the two BCs currently needs to be associated, the third indication information can be omitted. In the case where each BC has multiple capabilities, the third indication information can be used to make the network device clear that the capabilities of the first frequency band combination and the second frequency band combination are due to the association of the SRS antenna switching capability and / or the uplink antenna switching capability.

[0301] The third indication information may be carried in the same message as the first indication information. Of course, the third indication information may also be carried in a different message from the first indication information, which is not limited in this embodiment of the present application.

[0302] For example, in a scenario where the antenna switching capability of the first frequency band combination (for example, the SRS antenna switching capability) is associated with the antenna switching capability of the second frequency band combination, the frequency bands in the first frequency band combination and the frequency bands in the second frequency band combination may be completely different. However, in a scenario where the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination, the frequency bands in the first frequency band combination and the frequency bands in the second frequency band combination are partially the same.

[0303] In the above solution, the terminal sends the third indication information to the network device, so that the network device can determine the antenna conversion capability association supported by two associated frequency band combinations, or determine the uplink antenna switching capability association supported by two associated frequency band combinations.

[0304] During the specific implementation process, an indicator bit may be added to the BC capability information sent by the terminal to the network device to indicate that the first indication information is used to indicate which capability of the first frequency band combination and the second frequency band combination is associated with. For example, if the indicator bit takes the first value, it is considered that the first indication information is used to indicate that the SRS antenna switching capability in the first frequency band combination and the second frequency band combination is associated; if the indicator bit takes the second value, it is considered that the first indication information is used to indicate that the uplink antenna switching capability in the first frequency band combination and the second frequency band combination is associated; if the indicator bit takes the third value, it is considered that the first indication information is used to indicate that the SRR antenna switching capability in the first frequency band combination and the second frequency band combination is associated with the uplink antenna switching capability.

[0305] Alternatively, the BC capability information may carry multiple first indication information, and the first indication information at different positions indicates the capabilities of different frequency band combinations. That is, the third indication information is the same as the first indication information.

[0306] Alternatively, the BC capability information not only carries a plurality of first indication information, but also sets an indication bit for each first indication information to indicate which capability of the first frequency band combination and the second frequency band combination the first indication information represents is associated with.

[0307] like Figure 4 As shown, Figure 4 Another communication method provided by an embodiment of the present application is shown, the method comprising:

[0308] Step 401: A terminal determines a first uplink antenna capability and a second uplink antenna capability supported by a first frequency band.

[0309] It can be understood that the first frequency band is a frequency band in a frequency band combination supported by the terminal.

[0310] The first uplink antenna capability and the second uplink antenna capability in the embodiment of the present application are different capabilities of the same communication parameter.

[0311] The first uplink antenna capability and the second uplink antenna capability may include the number of uplink transmit antennas, or the number of uplink transmit ports, or the number of uplink transmit links.

[0312] The uplink antenna capability in the embodiments of the present application may be referred to as: the capability of a transmitting antenna / transmitting port / transmitting link / TXport.

[0313] For example, the first uplink antenna capability supported by the first frequency band indicates that the number of uplink transmit antennas corresponding to the first frequency band is the number of uplink transmit antennas included in the first uplink antenna capability. The second uplink antenna capability supported by the first frequency band indicates that the number of uplink transmit antennas corresponding to the first frequency band is the number of uplink transmit antennas included in the second uplink antenna capability.

[0314] The first uplink antenna capability and the second uplink antenna capability may be different, in other words, the number of uplink transmit antennas included in the second uplink antenna capability is different from the number of uplink transmit antennas included in the first uplink antenna capability. The second uplink antenna capability may be greater than the first uplink antenna capability. It is understandable that the number of uplink transmit antennas included in the second uplink antenna capability may be greater than the number of uplink transmit antennas included in the first uplink antenna capability.

[0315] It is understandable that the effect that can be achieved when the terminal uses the second uplink antenna capability for uplink transmission is greater than the effect that can be achieved when the terminal uses the first uplink antenna capability for uplink transmission. For example, the data rate when using the second uplink antenna capability is greater than the communication rate when using the first uplink antenna capability for communication.

[0316] For example, the second uplink antenna capability includes a plurality of uplink transmitting antennas or 2T. The first uplink antenna capability includes a single uplink transmitting antenna or 1T.

[0317] Under the same conditions, the communication effect that can be achieved when the terminal uses the communication capability of "2T" for uplink transmission in the embodiment of the present application is greater than the communication effect that can be achieved when the terminal uses the communication capability of "1T" for uplink transmission. Among them, "2T" means that the terminal can use 2 transmit antennas or 2 transmit ports (TX ports) on the carrier corresponding to the first frequency band to send uplink data. "1T" means that the terminal can use 1 transmit antenna or 1 transmit port (TX port) on the carrier corresponding to the first frequency band to send uplink data.

[0318] For example, the amount of data sent using two TX ports is larger than that sent using one TX port.

[0319] Step 402: The terminal sends fourth indication information and fifth indication information to the network device, and the network device receives the fourth indication information and fifth indication information from the terminal accordingly. The fourth indication information is used to indicate the first uplink antenna capability supported by the first frequency band. The fifth indication information is used to indicate the second uplink antenna capability supported by the first frequency band.

[0320] As a possible implementation, the fourth indication information includes the fifth indication information. The fifth indication information may be a reserved indication bit in the fourth indication information, or the fifth indication information may be a newly added indication bit in the fourth indication information. By carrying the fifth indication information in the fourth indication information, the signaling overhead may be reduced.

[0321] Exemplarily, the fourth indication information may be identification information of the first uplink communication capability or identification information of the first uplink carrier capability, and the fifth indication information may be identification information of the second uplink communication capability or identification information of the second uplink carrier capability (where different identification information corresponds to different capabilities). For example, the identification information is FeatureSetUplinkId, and the uplink communication capability or uplink carrier capability is FeatureSetUplink. Alternatively, the identification information is FeatureSetUplinkPerCC-Id, and the uplink communication capability or uplink carrier capability is FeatureSetUplinkPerCC.

[0322] Table 6

[0323]

[0324] For example, in combination with Table 6, taking the first frequency band as Band B, the first uplink antenna capability as 1T capability, and the second uplink antenna capability as 2T capability as an example, as shown in Table 6, the fourth indication information may be FeatureSetUplinkId2 in Table 6, and FeatureSetUplinkId2 indicates that the uplink capability of BandB is 1T capability. The fifth indication information may be FeatureSetUplinkId3, and FeatureSetUplinkId3 indicates that the uplink capability of BandB is 2T capability. FeatureSetDownlinkId1 in Table 6 indicates the downlink antenna capability of Band A, and FeatureSetUplinkId1 in Table 6 indicates the uplink antenna capability of Band A. FeatureSetDownlinkId2 in Table 6 indicates the downlink antenna capability of Band B.

[0325] It should be noted that if the terminal reports the first uplink antenna capability and the second uplink antenna capability supported by the first frequency band to the network device at the granularity of the frequency band combination, the terminal may also report the first uplink antenna capability and the third uplink antenna capability supported by the second frequency band excluding the first frequency band in the frequency band combination to the network device. For example, the third uplink antenna capability is 0T. At this time, the uplink capability parameters of BandA in Table 7 may include FeatureSetUplinkId4 in addition to FeatureSetUplinkId1. Among them, FeatureSetUplinkId1 indicates that the uplink capability of BandA is 1T capability, and FeatureSetUplinkId4 indicates that the uplink capability of BandA is 0T capability. For example: as shown in Table 7. Of course, FeatureSetUplinkId4 may also be omitted, and the embodiments of the present application are not limited to this.

[0326] Table 7

[0327]

[0328] When reporting with frequency band combination as the granularity, on the one hand, the second uplink antenna capability of frequency band B can be determined by the first uplink antenna capability indicated by FeatureSetUplinkId1 and the first uplink antenna capability indicated by FeatureSetUplinkId2, for example, the second uplink antenna capability indicated by FeatureSetUplinkId3 is equal to the sum of the first uplink antenna capability indicated by FeatureSetUplinkId1 and the first uplink antenna capability indicated by FeatureSetUplinkId2. Or on the other hand, the sum of the second uplink antenna capability indicated by FeatureSetUplinkId3 and the third uplink antenna capability indicated by FeatureSetUplinkId4 is equal to the sum of the first uplink antenna capability indicated by FeatureSetUplinkId1 and the first uplink antenna capability indicated by FeatureSetUplinkId2.

[0329] As a possible implementation, the fourth indication information and the fifth indication information may be the same indication information, that is, the fourth indication information not only indicates the first uplink antenna capability supported by the first frequency band, but is also used to indicate the second uplink antenna capability supported by the first frequency band. For example: there is a field (corresponding to the fourth indication information) in a certain indication information indicating the first uplink antenna capability, and there is another field (corresponding to the fifth indication information) in the indication information indicating the second uplink antenna capability. For another example, the fourth indication information is a field indicating the first uplink antenna capability, and a field indicating the second uplink antenna capability is newly added to the fourth indication information.

[0330] As a possible implementation method, the fourth indication information is used to indicate a first uplink communication capability or a first uplink carrier capability supported by the first frequency band, the first uplink communication capability or the first uplink carrier capability including a first uplink antenna capability, and the fifth indication information is used to indicate a second uplink communication capability or a second uplink carrier capability supported by the first frequency band, the second uplink communication capability or the second uplink carrier capability including a second uplink antenna capability. The first uplink communication capability information or the first uplink carrier capability information supported by the first frequency band can carry the above-mentioned fifth indication information. Since the fifth indication information also indicates an uplink communication capability or an uplink carrier capability, it can be included in the first uplink communication capability or the first uplink carrier capability as an uplink communication capability or an uplink carrier capability.

[0331] In the embodiment of the present application, the first uplink antenna capability supported by the first frequency band refers to the uplink antenna capability of the first frequency band when the first frequency band does not reuse the uplink antenna capabilities supported by other frequency bands.

[0332] In the embodiment of the present application, the second uplink antenna capacity supported by the first frequency band refers to the uplink antenna capacity of the first frequency band when the first frequency band reuses the uplink antenna capacity supported by other frequency bands. The second uplink antenna capacity is usually obtained by the sum of the uplink antenna capacity of the first frequency band itself and the uplink antenna capacity supported by other multiplexed frequency bands. For example, if the uplink antenna capacity of the first frequency band itself is 1T, and the uplink antenna capacity supported by other frequency bands is 1T, then when the first frequency band reuses the uplink antenna capacity supported by other frequency bands, the uplink antenna capacity of the first frequency band changes from 1T to 2T.

[0333] Step 403: The network device determines a first uplink antenna capability supported by the first frequency band according to the fourth indication information, and determines a second uplink antenna capability supported by the first frequency band according to the fifth indication information.

[0334] For example, in combination with the above Table 6, there is a correspondence between FeatureSetUplinkId2 and the uplink capability on the network device side, and the uplink capability supported by the first frequency band can be searched in the correspondence according to FeatureSetUplinkId2. For example, the network device can determine that the first frequency band supports the uplink antenna capability of "1T" according to FeatureSetUplinkId2. There is a correspondence between FeatureSetUplinkId3 and the uplink capability on the network device side, and the uplink capability supported by the first frequency band can be searched in the correspondence according to FeatureSetUplinkId3. For example, the network device can determine that the first frequency band supports the uplink antenna capability of "2T" according to FeatureSetUplinkId3.

[0335] After obtaining at least two capabilities (e.g., at least two uplink antenna capabilities) supported by the frequency band in the frequency band combination reported by the terminal device, the network device can determine whether the frequency band in the frequency band combination has the uplink antenna switching capability based on the capability. Taking the capabilities of the frequency band combination shown in Table 6 as an example, since Band B supports both 1T uplink capability and 2T uplink capability, it can be seen whether it can reuse antennas of other frequency bands in the frequency band combination, that is, the frequency band combination has the uplink antenna switching capability.

[0336] In the above scheme, the terminal sends the fourth indication information and the fifth indication information to the network device, so that the network device can determine the first uplink antenna capability supported by the first frequency band according to the fourth indication information, and determine the second uplink antenna capability supported by the first frequency band according to the fifth indication information, so that the network device can clearly understand the specific uplink antenna capability supported by each frequency band in a frequency band combination.

[0337] In a possible embodiment, when the first frequency band supports the second uplink antenna capability, the method provided by the embodiment of the present application may further include: the terminal sends sixth indication information to the network device, and accordingly, the network device receives the sixth indication information from the terminal. The sixth indication information may be carried in the fourth indication information, or may be different from the fourth indication information. The sixth indication information is used to indicate the capability of the frequency band combination corresponding to the second uplink antenna capability, wherein the first frequency band is one of the frequency bands in the frequency band combination. For example, the capability of the frequency band combination corresponding to the second uplink antenna capability may be the SRS antenna switching capability. Among them, the sixth indication information, for example, indicates the change in the SRS antenna switching capability caused by switching from the first uplink antenna capability to the second uplink antenna capability.

[0338] Table 8

[0339]

[0340] For example, in combination with Table 8, the first frequency band is frequency band B, the second frequency band is frequency band A, the frequency band combination to which the first frequency band and the second frequency band belong is BC with sequence number 1 and BC with sequence number 2, and BC with sequence number 1 and BC with sequence number 2 are actually the same BC, but the BC has corresponding different capabilities. For example, the terminal reports BC capability information 1 of BC with sequence number 1 and BC capability information 2 of BC with sequence number 2 to the network device, wherein BC capability information 1 is used to indicate that Band A supports 1T uplink antenna capability in BC with sequence number 1, and is used to indicate that Band B supports 1T uplink antenna capability in BC with sequence number 1, and at this time, the SRS antenna conversion capability of the BC is SRS antenna conversion capability 1. BC capability information 2 is used to indicate that Band A supports 0T uplink antenna capability in BC with sequence number 2, and is used to indicate that Band B supports 2T uplink antenna capability in BC with sequence number 2, and at this time, the SRS antenna conversion capability of the BC is SRS antenna conversion capability 2. The SRS antenna switching capability 2 may be indicated by the terminal to the network device through the sixth indication information. At this time, if the network device determines that both band B and band A support 1T, the SRS antenna switching capability of the band combination may be determined to be SRS antenna switching capability 1. If the network device determines that band B supports 2T and band A supports 1T, the SRS antenna switching capability of the band combination may be determined to be SRS antenna switching capability 2.

[0341] In other words, when the uplink antenna capability supported by the frequency band in the same frequency band combination changes, the SRS antenna switching capability of the frequency band combination may also change. It should be understood that here only the uplink antenna capability supported by the frequency band in the same frequency band combination changes, and the SRS antenna switching capability changes as an example. Of course, other capabilities may also change. When other capabilities change, they may also be indicated through the sixth indication information.

[0342] In a possible embodiment, the method provided in the embodiment of the present application may further include: the network device determines the capability of the frequency band combination corresponding to the second uplink antenna capability according to the sixth indication information, for example, the capability of the frequency band combination may be an SRS antenna conversion capability.

[0343] In a possible embodiment, the method provided in the embodiment of the present application may further include: the network device determines the capability of the frequency band combination corresponding to the second uplink antenna capability according to the sixth indication information, for example, the capability of the frequency band combination may be an SRS antenna conversion capability.

[0344] As shown in Table 9, Table 9 takes the first frequency band as frequency band B, the first uplink antenna capability as 1T capability, and the second uplink antenna capability as 2T capability as an example to show the relationship between various indication information, wherein the fourth indication information may be FeatureSetUplinkId2 in Table 9. The fifth indication information may be FeatureSetUplinkId3. The sixth indication information may be srs-TxSwitch in Table 9.

[0345] Table 9

[0346]

[0347] In a possible embodiment, the method provided in the embodiment of the present application may further include: the terminal indicates to the network device that the first frequency band supports uplink antenna switching capability.

[0348] like Figure 5 As shown, Figure 5 A communication method provided in an embodiment of the present application is shown, including:

[0349] Step 501: The terminal determines the maximum uplink antenna capability of the frequency band combination, wherein the maximum uplink antenna capability of the frequency band combination is used to reflect the maximum value of the sum of the uplink antenna capabilities that can be supported by all frequency bands included in the frequency band combination.

[0350] For example, if the frequency band combination includes frequency band 1 and frequency band 2, the maximum uplink antenna capability of the frequency band combination is "2T", that is, the sum of the uplink antenna capability of frequency band 1 and the uplink antenna capability of frequency band 2 needs to be less than or equal to "2T", for example, frequency band 1 is "1T", frequency band 1 is "1T", or frequency band 1 is "0T", frequency band 1 is "2T", or frequency band 1 is "2T", frequency band 1 is "0T", frequency band 1 is "0T", frequency band 1 is "1T", frequency band 1 is "1T", frequency band 1 is "0T", the above capabilities all meet the maximum uplink antenna capability of the frequency band combination supported by the terminal.

[0351] Step 502: The terminal sends seventh indication information to the network device. Correspondingly, the network device receives the seventh indication information from the terminal, where the seventh indication information is used to indicate the maximum uplink antenna capability of the frequency band combination.

[0352] For example, the seventh indication information is the maximum uplink antenna capability of the frequency band combination. For example, the eighth indication information is the uplink antenna capability of the frequency band combination supporting "2T".

[0353] Optionally, the terminal sends eighth indication information to the network device. Correspondingly, the network device receives eighth indication information from the terminal, where the eighth indication information is used to indicate the maximum uplink antenna capability of one or more frequency bands in the frequency band combination.

[0354] Step 503: The network device determines the uplink antenna capability supported by each frequency band in the frequency band combination according to the seventh indication information.

[0355] Optionally, the network device determines the uplink antenna capability supported by each frequency band in the frequency band combination according to the seventh indication information and the eighth indication information.

[0356] It can be understood that the sum of the uplink antenna capabilities supported by each frequency band finally determined by the network device is less than or equal to the maximum uplink antenna capability of the frequency band combination.

[0357] For example, if the seventh indication information is that the frequency band combination (including frequency band A and frequency band B) supports a maximum uplink antenna capability of "2T", and the eighth indication information is that frequency band A in the frequency band combination supports a maximum uplink antenna capability of "1T" and frequency band B supports a maximum uplink antenna capability of "2T", as shown in Table 10, the network device can determine that frequency band A in the frequency band combination supports an uplink antenna capability of 0T, frequency band B supports an uplink antenna capability of 1T, or frequency band B supports an uplink antenna capability of 2T. Alternatively, the network device can determine that frequency band A in the frequency band combination supports an uplink antenna capability of 1T, and frequency band B supports an uplink antenna capability of 1T.

[0358] Table 10

[0359]

[0360]

[0361] For example, if the seventh indication information indicates that the frequency band combination (including frequency band A and frequency band B) supports an uplink antenna capability of "1T", the network device may determine that frequency band A in the frequency band combination supports an uplink antenna capability of 0T, and frequency band B supports an uplink antenna capability of 1T. Alternatively, the network device may determine that frequency band A in the frequency band combination supports an uplink antenna capability of 1T, and frequency band B supports an uplink antenna capability of 0T.

[0362] In the above scheme, the terminal sends the seventh indication information to the network device. Since the seventh indication information indicates the maximum uplink antenna capacity of the frequency band combination, it is convenient for the network device to clearly understand the uplink antenna capacity supported by each frequency band in the frequency band combination.

[0363] In a possible implementation, the method provided in the embodiment of the present application also includes: the terminal determines the uplink antenna capability of each frequency band in the frequency band combination, and the sum of the uplink antenna capabilities of all frequency bands in the frequency band combination is less than or equal to the maximum uplink antenna capability of the frequency band combination.

[0364] Figure 6 A schematic diagram of a network architecture using an embodiment of the present application is shown. Figure 6As shown, the terminal 500 can simultaneously establish dual-connectivity (DC) with multiple network devices (eg, the network device 300 and the network device 400).

[0365] Among the above network devices 300 and 400, the network device responsible for exchanging radio resource control messages with the terminal 500 and interacting with the core network control plane entity can be used as a master node (MN), and the other network device can be used as a secondary node (SN).

[0366] Similarly, the terminal 500 may also have communication connections with multiple network devices at the same time and can send and receive data, which can be called multi-connectivity or multi-connectivity. Among the multiple network devices, there may be a network device responsible for interacting with the terminal 500 for radio resource control messages and for interacting with the core network control plane entity. Then, the network device may be called MN, and the remaining network devices may be called SN. In the embodiment of the present application, MN and SN may be base stations of the same radio access type (RAT) or base stations of different RATs.

[0367] Optionally, in an evolutionary structure, the network device may include a centralized unit (CU) and a distributed unit (DU), and multiple DUs may be centrally controlled by one CU. In some network architectures, the signaling generated by the CU can be sent to the terminal through the DU, or the signaling generated by the terminal can be sent to the CU through the DU. The DU may not parse the signaling but directly encapsulate it at the protocol layer and transparently transmit it to the terminal or CU. If the following embodiments involve the transmission of such signaling between the DU and the terminal, at this time, the sending or receiving of the signaling by the DU includes this scenario. The devices in the following embodiments of the present application may be located in a terminal or a network device depending on the functions they implement. When the above CU-DU structure is adopted, the network device may be a CU node, a DU node, or a RAN device including a CU node and a DU node.

[0368] Three specific multiple radio access type dual connectivity (multiple RATsdual connectivity, MR-DC) architectures are defined in the 5G wireless communication system. When the network device (such as a base station) of E-UTRA is used as the MN and the network device (such as a base station) of NR is used as the SN, the scenario is specifically referred to as E-UTRA-NR dual connectivity (E-UTRA-NR Dual Connectivity, EN-DC) in MR-DC. When the network device (such as a base station) of NR is used as the MN and the network device (such as a base station) of E-UTRA is used as the SN, the scenario is specifically referred to as NR-E-UTRA dual connectivity (NR-E-UTRA Dual Connectivity, NE-DC) in MR-DC. Similarly, when both MN and SN are network devices (such as base stations) of NR, the scenario is specifically referred to as NR-NR Dual Connectivity (NR-NR Dual Connectivity, NR-DC). In addition, MN and SN may also be network devices (such as base stations) of LTE. It should be noted that in the above network architecture, data transmission between MN and SN can be carried out through a wired connection or a wireless connection, which is not limited in this embodiment of the present application.

[0369] In the embodiment of the present application, since the terminal can receive services of multiple cells simultaneously under one network device, the MN may include a master cell group (MCG). Similarly, the SN may also include a secondary cell group (SCG), but the embodiment of the present application does not limit this.

[0370] In the scenario where the terminal is dual-connected with two network devices at the same time, the air interface configuration on the MN side and the air interface configuration on the SN side are independent of each other, that is, the terminal can perform air interface transmission with the MN according to the air interface configuration on the MN side, and perform air interface transmission with the SN according to the air interface configuration on the SN side. In the DC (such as EN-DC) scenario, according to the uplink antenna switching capability of the terminal, if the network device wants to configure the uplink antenna switching function for the terminal, the MN and SN need to be configured for the terminal together. For example, the location where the uplink antenna switching duration occurs, or the carrier where the interruption occurs, can be configured; and / or, which carrier is carrier1 and which carrier is carrier2 can be configured. The carrier1 can be understood as a carrier with one uplink transmit antenna (transmitantenna connector) capability, and the carrier1 can be understood as a carrier with two uplink transmit antennas (transmit antenna connector) capability. In order to correctly configure the uplink antenna switching function for the terminal, the MN needs to negotiate with the SN to determine whether to configure the uplink antenna switching function for the terminal and how to configure the uplink antenna switching function for the terminal, so that the MN and SN can correctly configure the terminal and the terminal can use the uplink antenna switching function normally, thereby avoiding the problem of configuration conflicts caused by the MN and SN configuring the terminal separately. For example, the MN configures the terminal to use the uplink antenna switching function but the SN does not configure the terminal to use the uplink antenna switching function, making the terminal uncertain whether it can actually use the uplink antenna switching function. If the terminal uses the uplink antenna switching function, since the SN does not configure the terminal to use the uplink antenna switching function, it will cause inconsistencies between the network device and the terminal. If the terminal does not use the uplink antenna switching function, the MN configures the uplink antenna switching function in vain.

[0371] Combine the following Figure 7 , describes a configuration method for an uplink antenna switching function in a DC scenario. Exemplarily, in an EN-DC scenario, MN is an E-UTRA base station, responsible for configuring the air interface configuration on the E-UTRA side, and SN is an NR base station, responsible for configuring the air interface configuration on the NR side. It should be noted that this implementation can also be used in NGEN-DC scenarios. In the NGEN-DC scenario, the LTE main base station is connected to the 5G core network device, while in the EN-DC scenario, the LTE main base station is connected to the 4G core network device.

[0372] Step 701: MN sends configuration indication information to SN, and correspondingly, SN receives configuration indication information from MN. The configuration indication information is used to indicate configuration of uplink antenna switching function for the terminal.

[0373] Specifically, the MN determines whether to configure the uplink antenna switching function for the terminal according to the capabilities reported by the terminal. For example, if the terminal reports that it supports the uplink antenna switching function, or if the terminal reports that it supports the uplink antenna switching function in the EN-DC scenario, the MN can determine to configure the uplink antenna switching function for the terminal, or determine to configure the uplink antenna switching function for the terminal in the EN-DC scenario.

[0374] In a possible embodiment, before step 701, the method provided in the embodiment of the present application may further include: the SN sends configuration request information to the MN, and correspondingly, the SN receives the configuration request information from the MN. The configuration request information is used to request or instruct to configure the uplink antenna switching function for the terminal.

[0375] Specifically, the SN determines whether to configure the uplink antenna switching function for the terminal according to the capabilities reported by the terminal. For example, if the terminal reports that it supports the uplink antenna switching function, or if the terminal reports that it supports the uplink antenna switching function in the EN-DC scenario, the SN can determine to configure the uplink antenna switching function for the terminal, or determine to configure the uplink antenna switching function for the terminal in the EN-DC scenario. After the SN determines, it can request or instruct the MN to configure the uplink antenna switching function for the terminal. The MN determines whether to configure the uplink antenna switching function for the terminal according to the capabilities reported by the terminal and the configuration request information sent by the SN.

[0376] In this embodiment, since the protocol stipulates that the control plane signaling is controlled by the MN, the MN has the main decision-making power. Therefore, the MN decides and sends the configuration information of the uplink antenna switching function to the terminal.

[0377] Step 702: The SN sends configuration confirmation information to the MN. Correspondingly, the SN receives the configuration confirmation information from the MN. The configuration confirmation information is used to indicate that the SN accepts or refuses to configure the uplink antenna switching function for the terminal. It should be noted that this step is optional.

[0378] Exemplarily, when in step 701 MN instructs SN to configure the uplink antenna switching function for the terminal, if SN accepts the configuration of the uplink antenna switching function for the terminal, SN may send a configuration confirmation message to MN to indicate acceptance of the configuration of the uplink antenna switching function for the terminal; if SN does not accept the configuration of the uplink antenna switching function for the terminal, SN may send a configuration confirmation message to MN to indicate refusal to configure the uplink antenna switching function for the terminal.

[0379] In this embodiment, although MN has the main decision-making power, MN needs to listen to the opinions of SN. Both MN and SN need to agree to configure the uplink antenna switching function for the terminal before they can finally decide and send the configuration information of the uplink antenna switching function to the terminal.

[0380] Step 703: The MN sends first configuration information to the terminal, and / or the SN sends second configuration information to the terminal. Accordingly, the terminal receives the first configuration information from the MN, and / or receives the second configuration information from the MN. The first configuration information is used to indicate the configuration parameters of the uplink antenna switching function on the MN side. The second configuration information is used to indicate the configuration parameters of the uplink antenna switching function on the SN side.

[0381] Exemplarily, the MN may carry the first configuration information in a radio resource control (RRC) connection reconfiguration message on the MN side, and the SN may carry the second configuration information in an SCG configuration message on the SN side, but the embodiments of the present application are not limited thereto.

[0382] Exemplarily, the first configuration information may include the location where the uplink antenna switching duration occurs, and / or which carrier is carrier 1 and which carrier is carrier 2. The second configuration information may also include the location where the uplink antenna switching duration occurs, and / or which carrier is carrier 1 and which carrier is carrier 2.

[0383] It should be noted that in the embodiments of the present application, the message transmission between the terminal and the SN can be relayed through the MN, that is, the MN forwards the messages between the terminal and the SN.

[0384] exist Figure 7 In the method shown, whether to configure the uplink antenna switching function for the terminal and how to configure the uplink antenna switching function for the terminal should be decided by negotiation between the MN and the SN. If it is entirely decided by the MN or the SN alone without considering the other party, there may be a problem of configuration conflict caused by the MN and the SN configuring the terminal separately. The MN and the SN cannot correctly configure the terminal, making it impossible for the terminal to use the uplink antenna switching function normally or causing a link break due to a reconfiguration failure. In view of this, an embodiment of the present application provides a communication method to avoid the above-mentioned problem by negotiating the configuration of the uplink antenna switching function between the MN and the SN.

[0385] The technical solution of the present application can be applied to a wireless communication system, and the communication devices in the wireless communication system can have a wireless communication connection relationship. One of the communication devices can be, for example, a main base station MN, or a chip configured in the main base station MN; another of the communication devices can be, for example, a secondary base station SN or a chip configured in the secondary base station SN; another of the communication devices can be, for example, a terminal or a chip configured in a terminal. The embodiments of the present application are not limited to this.

[0386] like Figure 8 As shown, it is a flowchart of another uplink antenna switching capability transmission method provided in an embodiment of the present application.

[0387] Step 801: A network device sends a terminal capability request message to a terminal.

[0388] Among them, the terminal capability request message is used to indicate that the network device allows the terminal to report the uplink antenna switching capability corresponding to the first scheduling method and / or the uplink antenna switching capability corresponding to the second scheduling method. Among them, the first scheduling method is that when the network device configures the uplink antenna switching function for the terminal, when the uplink transmitting antennas of the two carriers (carrier 1 and carrier 2) are both 1, the terminal does not expect the network device to schedule or configure the terminal to perform uplink transmission on the two carriers at the same time, that is, the network device will not schedule or configure the terminal to perform uplink transmission on the two carriers at the same time. The second scheduling method is that when the network device configures the uplink antenna switching function for the terminal, when the uplink transmitting antennas of the two carriers are both 1, the network device can schedule or configure the terminal to perform uplink transmission on the two carriers at the same time, and can also schedule or configure the terminal to perform uplink transmission on any one of the two carriers at the same time.

[0389] For example, the first scheduling method may be as shown in Table 11 below:

[0390] Table 11

[0391]

[0392] For example, the second scheduling method may be as shown in Table 12 below:

[0393] Table 12

[0394]

[0395] Specifically, the network device may instruct the terminal whether to allow the terminal to report the uplink antenna switching capability corresponding to the first scheduling mode and / or the uplink antenna switching capability corresponding to the second scheduling mode. If the network device indicates that the terminal is allowed to report the uplink antenna switching capability corresponding to the first scheduling mode, or the uplink antenna switching capability corresponding to the second scheduling mode, or the uplink antenna switching capability corresponding to the first scheduling mode and the uplink antenna switching capability corresponding to the second scheduling mode, then according to the instruction of the network device, the terminal reports the uplink antenna switching capability corresponding to the first scheduling mode, or the uplink antenna switching capability corresponding to the second scheduling mode, or the uplink antenna switching capability corresponding to the first scheduling mode and the uplink antenna switching capability corresponding to the second scheduling mode.

[0396] It can be seen that in the implementation manner of the present application, the network indicates the uplink antenna switching capability allowed to be reported by the terminal, and the terminal only needs to report the corresponding uplink antenna switching capability according to the network requirements, such as the uplink antenna switching capability corresponding to the first scheduling method and / or the uplink antenna switching capability corresponding to the second scheduling method, thereby avoiding the terminal reporting redundant uplink antenna switching capabilities that are not required by the network device, and can reduce the signaling overhead of the capability information reported by the terminal.

[0397] Step 802: The terminal sends a terminal capability information message to the network device according to the received terminal capability request message. Correspondingly, the network device receives the terminal capability information message from the terminal.

[0398] Specifically, if the terminal supports uplink antenna switching capability, or if the terminal supports one or more of the uplink antenna switching capability corresponding to the first scheduling method and the uplink antenna switching capability corresponding to the second scheduling method, the terminal carries the uplink antenna switching capability supported by the terminal in the terminal capability information message and sends it to the network device based on the received terminal capability request message and the capabilities supported by the terminal.

[0399] For example, if the network device indicates that the terminal is allowed to report the uplink antenna switching capability corresponding to the first scheduling mode, and the terminal supports the uplink antenna switching capability corresponding to the first scheduling mode, the terminal reports the uplink antenna switching capability corresponding to the first scheduling mode supported by the terminal to the network device. If the network device indicates that the terminal is allowed to report the uplink antenna switching capability corresponding to the second scheduling mode, and the terminal does not support the uplink antenna switching capability corresponding to the second scheduling mode, the terminal will not report the uplink antenna switching capability corresponding to the second scheduling mode supported by the terminal to the network device.

[0400] Step 803: The network device sends a configuration message to the terminal according to the received terminal capability information message, and correspondingly, the terminal receives the configuration message from the network device. The configuration message is used to indicate the configuration of the uplink antenna switching function.

[0401] For example, the configuration of the uplink antenna switching function may include the location where the uplink antenna switching duration occurs, or the carrier where the interruption occurs; and / or, may include which carrier is carrier1 and which carrier is carrier2, where carrier1 can be understood as a carrier with one uplink transmit antenna (transmit antenna connector) capability, and carrier1 can be understood as a carrier with two uplink transmit antennas (transmit antenna connectors) capability.

[0402] For example, the configuration message may be an RRC reconfiguration message.

[0403] It can be seen that in the implementation mode of the present application, the super uplink capability of the terminal can be reported to the access network device through the first message, thereby realizing the reporting of the super uplink capability to the access network device. In addition, the second message indicates whether the access network device supports the super uplink function, thereby avoiding the compatibility problem between the new terminal and the old access network device; and the access network device instructs the terminal to use the super uplink capability (also known as the uplink antenna switching capability) by configuring the uplink parameters. For the uplink carrier that accepts antenna switching, the switched antenna capability can be superimposed on the original antenna capability, thereby enhancing the antenna capability of the uplink carrier, thereby improving the uplink transmission speed.

[0404] The above mainly introduces the scheme of the embodiment of the present application from the perspective of the interaction between various network elements. It can be understood that in order to realize the above functions, each network element, such as a terminal, a network device, etc., includes a structure and / or software module 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 algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the present application.

[0405] The embodiment of the present application can divide the functional units according to the example terminal and network equipment of the above method. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one processing unit. The above integrated unit can be implemented in the form of hardware or in the form of software functional units. It should be noted that the division of units in the embodiment of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation.

[0406] Combined with the above Figures 3 to 8 , the method of the embodiment of the present application is described, and the communication device for executing the above method provided by the embodiment of the present application is described below. Those skilled in the art can understand that the method and the device can be combined and referenced with each other, and the communication device provided by the embodiment of the present application can execute the steps performed by the terminal and the network device in the above analysis method.

[0407] In the case of integrated units, Fig. 9 The communication device involved in the above embodiment is shown, and the communication device may include: a communication module 913 and a processing module 912.

[0408] In an optional implementation, the communication device may further include a storage module 911 for storing program codes and data of the communication device.

[0409] In one example, the communication device is a terminal, or a chip used in a terminal. In this case, the communication module 613 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the communication module 913 is used to perform the signal transceiving operation of the terminal in the above method embodiment. The processing module 912 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0410] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 3 The processing module 912 is used to support the communication device to perform the sending action performed by the terminal in step 302. Figure 3 The action performed by the terminal in step 301.

[0411] In another example, the communication device is a terminal, or a chip used in a terminal. In this case, the communication module 913 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the communication module 913 is used to perform the signal transceiving operation of the terminal in the above method embodiment. The processing module 912 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0412] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 4 The processing module 912 is used to support the communication device to perform the sending action performed by the terminal in step 402. Figure 4 The action performed by the terminal in step 401.

[0413] In another example, the communication device is a terminal, or a chip used in a terminal. In this case, the communication module 913 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the communication module 913 is used to perform the signal transceiver operation of the terminal in the above method embodiment. The processing module 912 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0414] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 5 The processing module 912 is used to support the communication device to perform the sending action performed by the terminal in step 502. Figure 5 The action performed by the terminal in step 501.

[0415] In one example, the communication device is a network device, or a chip used in a network device. In this case, the communication module 913 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the communication module 913 is used to perform the signal transceiver operation of the network device in the above method embodiment. The processing module 612 is used to perform the signal processing operation of the network device in the above method embodiment.

[0416] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 3 The receiving action performed by the network device in step 302. The processing module 912 is used to support the communication device to perform Figure 3 The action performed by the network device in step 303.

[0417] In another example, the communication device is a network device, or a chip used in a network device. In this case, the communication module 913 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the communication module 913 is used to perform the signal transceiving operation of the network device in the above method embodiment. The processing module 912 is used to perform the signal processing operation of the network device in the above method embodiment.

[0418] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 4 The receiving action performed by the network device in step 402. The processing module 912 is used to support the communication device to perform Figure 4 The action performed by the network device in step 403.

[0419] In another example, the communication device is a network device, or a chip used in a network device. In this case, the communication module 913 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the communication module 913 is used to perform the signal transceiver operation of the network device in the above method embodiment. The processing module 912 is used to perform the signal processing operation of the network device in the above method embodiment.

[0420] For example, the communication module 913 is used to execute the above-mentioned embodiment. Figure 5 The receiving action performed by the network device in step 502. The processing module 912 is used to support the communication device to perform Figure 5 The action performed by the network device in step 503.

[0421] Among them, the processing module 912 can be a processor or a controller, for example, a central processing unit, a general processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute various exemplary logic blocks, modules and circuits described in conjunction with the disclosure of this application. The processor can also be a combination that implements a computing function, such as a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and the like. The communication module can be a transceiver, a transceiver circuit or a communication interface, and the like. The storage module can be a memory.

[0422] When the processing module 912 is the processor 1001 or the processor 1005, the communication module 913 is the transceiver 1003, and the storage module 911 is the memory 1002, the communication device involved in the present application can be Fig.10 The communication device shown.

[0423] Fig.10 The hardware structure diagram of the communication device provided in the embodiment of the present application is shown in FIG. The structure of the terminal and the network device in the embodiment of the present application can refer to FIG. Fig.10 The communication device includes a processor 1001, a communication line 1004 and at least one transceiver ( Fig.10 The transceiver 1003 is used as an example for explanation).

[0424] The processor 1001 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application.

[0425] The communication link 1004 may include a pathway to transmit information between the above-mentioned components.

[0426] The transceiver 1003 is used to exchange information with other devices, for example, using any transceiver-like device for communicating with other devices or communication networks, such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc.

[0427] Optionally, the communication device may further include a memory 1002 .

[0428] The memory 1002 may be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory may exist independently and be connected to the processor via a communication line 1004. The memory may also be integrated with the processor.

[0429] The memory 1002 is used to store computer-executable instructions for executing the solution of the present application, and the execution is controlled by the processor 1001. The processor 1001 is used to execute the computer-executable instructions stored in the memory 1002, thereby realizing a communication method provided in the following embodiment of the present application.

[0430] Optionally, the computer-executable instructions in the embodiments of the present application may also be referred to as application code, which is not specifically limited in the embodiments of the present application.

[0431] In a specific implementation, as an embodiment, the processor 1001 may include one or more CPUs, such as Fig.10 CPU0 and CPU1 in.

[0432] In a specific implementation, as an embodiment, the communication device may include multiple processors, such as Fig.10 1 and 1005. Each of these processors may be a single-CPU processor or a multi-CPU processor. A processor herein may refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0433] In one example, the communication device is a terminal, or a chip used in a terminal. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the transceiver 1003 is used to perform the signal transceiving operation of the terminal in the above method embodiment. The processor 1001 or the processor 1005 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0434] For example, the transceiver 1003 is used to execute the above embodiment. Figure 3 The sending action performed by the terminal in step 302. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 3 The action performed by the terminal in step 301.

[0435] In another example, the communication device is a terminal, or a chip used in a terminal. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the transceiver 1003 is used to perform the signal transceiving operation of the terminal in the above method embodiment. The processor 1001 or the processor 1005 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0436] For example, the transceiver 1003 is used to execute the above embodiment. Figure 4 The sending action performed by the terminal in step 402. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 4 The action performed by the terminal in step 401.

[0437] In another example, the communication device is a terminal, or a chip used in a terminal. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a network device). For example, the transceiver 1003 is used to perform the signal transceiving operation of the terminal in the above method embodiment. The processor 10001 or the processor 1005 is used to perform the signal processing operation of the terminal in the above method embodiment.

[0438] For example, the transceiver 1003 is used to execute the above embodiment. Figure 5 The sending action performed by the terminal in step 502. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 5 The action performed by the terminal in step 501.

[0439] In one example, the communication device is a network device, or a chip used in a network device. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the transceiver 73 is used to perform the signal transceiving operation of the network device in the above method embodiment. The processor 1001 or the processor 1005 is used to perform the signal processing operation of the network device in the above method embodiment.

[0440] For example, the transceiver 1003 is used to execute the above embodiment. Figure 3 The receiving action performed by the network device in step 302 of the embodiment. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 3 The action performed by the network device in step 303.

[0441] In another example, the communication device is a network device, or a chip used in a network device. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the transceiver 73 is used to perform the signal transceiving operation of the network device in the above method embodiment. The processor 1001 or the processor 1005 is used to perform the signal processing operation of the network device in the above method embodiment.

[0442] For example, the transceiver 1003 is used to execute the above embodiment. Figure 4 The receiving action performed by the network device in step 402. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 4 The action performed by the network device in step 403.

[0443] In another example, the communication device is a network device, or a chip used in a network device. In this case, the transceiver 1003 is used to support the communication device to communicate with an external network element (e.g., a terminal). For example, the transceiver 1003 is used to perform the signal transceiving operation of the network device in the above method embodiment. The processor 1001 or the processor 1005 is used to perform the signal processing operation of the network device in the above method embodiment.

[0444] For example, the transceiver 1003 is used to execute the above embodiment. Figure 5 The receiving action performed by the network device in step 502. The processor 1001 or the processor 1005 is configured to support the communication device to perform Figure 5 The action performed by the network device in step 503.

[0445] Fig.11 1 is a schematic diagram of the structure of the chip 110 provided in the embodiment of the present application. The chip 110 includes one or more than two (including two) processors 1110 and a communication interface 1130 .

[0446] Optionally, the chip 110 further includes a memory 1140, which may include a read-only memory and a random access memory, and provides operation instructions and data to the processor 1110. A portion of the memory 1140 may also include a non-volatile random access memory (NVRAM).

[0447] In some embodiments, the memory 1140 stores the following elements, execution modules or data structures, or a subset thereof, or an extended set thereof.

[0448] In the embodiment of the present application, the corresponding operation is performed by calling the operation instruction stored in the memory 1140 (the operation instruction may be stored in the operating system).

[0449] One possible implementation is that the structures of the terminal and the network device are similar, and different devices may use different chips to implement their respective functions.

[0450] The processor 1110 controls the processing operation of any one of the terminal and the network device. The processor 1110 may also be referred to as a central processing unit (CPU).

[0451] The memory 1140 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1110. A portion of the memory 1140 may also include an NVRAM. For example, in an application, the memory 1140, the communication interface 1130, and the memory 1140 are coupled together via a bus system 1120, wherein the bus system 1120 may include a power bus, a control bus, and a status signal bus in addition to a data bus. However, for the sake of clarity, in Figure 8 Various buses are labeled as bus system 1120.

[0452] The method disclosed in the above embodiment of the present application can be applied to the processor 1110, or implemented by the processor 1110. The processor 1110 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 1110. The above processor 1110 can be a general-purpose processor, a digital signal processor (digital signal processing, DSP), an ASIC, a field-programmable gate array (field-programmable gate array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software modules in the decoding processor can be executed. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 1140, and the processor 1110 reads the information in the memory 1140 and completes the steps of the above method in combination with its hardware.

[0453] In one possible implementation, the communication interface 1130 is used to execute Figure 3-Figure 5 The steps of receiving and sending of the terminal in the embodiment shown. The processor 1110 is configured to execute Figure 3-Figure 5 The processing steps of the terminal in the illustrated embodiment.

[0454] In one possible implementation, the communication interface 1130 is used to execute Figure 3-Figure 5 The steps of receiving and sending of the network device in the embodiment shown. The processor 1110 is used to execute Figure 3-Figure 5 The steps of the processing of the network device in the embodiment shown.

[0455] The above communication module may be a communication interface of the device, used to receive signals from other devices. For example, when the device is implemented in a chip, the communication module is a communication interface of the chip used to receive or send signals from other chips or devices.

[0456] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed, the following is implemented: Figure 3 Functions performed by the terminal in .

[0457] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed, the following is implemented: Figure 3 A function performed by a network device in a network.

[0458] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed, the following is implemented: Figure 4 Functions performed by the terminal in .

[0459] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed, the following is implemented: Figure 4 A function performed by a network device in a network.

[0460] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the instructions are executed, the following is implemented: Figure 5 A function performed by a network device in a network.

[0461] In one aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium. When the instructions are executed, the computer-readable storage medium can implement the following Figure 5 The function of the terminal.

[0462] In one aspect, a computer program product is provided, wherein the computer program product includes instructions, and when the instructions are executed, the following are implemented: Figure 3 Functions performed by the terminal in .

[0463] In another aspect, a computer program product comprising instructions is provided. The computer program product comprises instructions. When the instructions are executed, the following are implemented: Figure 3 A function performed by a network device in a network.

[0464] In one aspect, a computer program product is provided, wherein the computer program product includes instructions, and when the instructions are executed, the following are implemented: Figure 4 A function performed by a network device in a network.

[0465] In another aspect, a computer program product comprising instructions is provided. The computer program product comprises instructions. When the instructions are executed, the following is implemented: Figure 4 Functions performed by the terminal in .

[0466] In another aspect, a computer program product comprising instructions is provided. The computer program product comprises instructions. When the instructions are executed, the following is implemented: Figure 5 A function performed by a network device in a network.

[0467] In another aspect, a computer program product comprising instructions is provided. The computer program product comprises instructions. When the instructions are executed, the following is implemented: Figure 5 The function of the terminal.

[0468] In one aspect, a chip is provided, which is applied to a terminal, and the chip includes at least one processor and a communication interface, wherein the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 3 Functions performed by the terminal in .

[0469] In another aspect, an embodiment of the present application provides a chip, which is applied to a network device, and the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 3 A function performed by a network device in a network.

[0470] In one aspect, a chip is provided, which is applied to a terminal, and the chip includes at least one processor and a communication interface, wherein the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 4 Functions performed by the terminal in .

[0471] In another aspect, an embodiment of the present application provides a chip, which is applied to a network device, and the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 4 A function performed by a network device in a network.

[0472] In one aspect, a chip is provided, which is applied to a terminal, and the chip includes at least one processor and a communication interface, wherein the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 5 Functions performed by the terminal in .

[0473] In another aspect, an embodiment of the present application provides a chip, which is applied to a network device, and the chip includes at least one processor and a communication interface, the communication interface is coupled to the at least one processor, and the processor is used to run instructions to implement the following Figure 5 A function performed by a network device in a network.

[0474] The present application embodiment provides a communication system, which includes: a terminal and a network device. The terminal is used to perform the following Figure 3 Functions performed by terminals in the network equipment are used to perform Figure 3 A function performed by a network device in a network.

[0475] The present application embodiment provides a communication system, which includes: a terminal and a network device. The terminal is used to perform the following Figure 4Functions performed by terminals in the network equipment are used to perform Figure 4 A function performed by a network device in a network.

[0476] The present application embodiment provides a communication system, which includes: a terminal and a network device. The terminal is used to perform the following Figure 5 Functions performed by terminals in the network equipment are used to perform Figure 5 A function performed by a network device in a network.

[0477] 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 network device, 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 (DVD); it may also be a semiconductor medium, for example, a solid state drive (SSD).

[0478] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art may understand and implement other changes to the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other components or steps, and "one" or "an" does not exclude multiple situations. A single processor or other unit may implement several functions listed in the claims. Certain measures are recorded in different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0479] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A communication method, characterized in that: include: The terminal determines that a capability of a first frequency band combination supported by the terminal is associated with a capability of a second frequency band combination, where the capability of the first frequency band combination is the same as or different from the capability of the second frequency band combination, and the capabilities are an antenna switching capability and an uplink antenna switching capability; The terminal sends first indication information to a network device, where the first indication information is used to indicate that a capability of the first frequency band combination is associated with a capability of the second frequency band combination.

2. The method according to claim 1, characterized in that The first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator.

3. The method according to claim 2, characterized in that The method further comprises: The terminal sends second indication information to the network device, where the second indication information is used to indicate capability association of multiple frequency band combinations having the same indicator.

4. The method according to claim 2 or 3, characterized in that: The terminal sends first indication information to the network device, including: The terminal sends first capability information and second capability information to the network device, where both the first capability information and the second capability information include the first indication information; The first capability information is used to indicate the capability of the first frequency band combination, and the second capability information is used to indicate the capability of the second frequency band combination.

5. The method according to claim 1, characterized in that The first indication information is first identification information, the first identification information is used to identify the second frequency band combination, and the first identification information is associated with the capability of the first frequency band combination.

6. The method according to claim 5, characterized in that The terminal sends first indication information to the network device, including: The terminal sends third capability information to the network device, where the third capability information includes the first indication information, and the third capability information is used to indicate a capability of the first frequency band combination.

7. The method according to claim 1, characterized in that The first indication information is a first list, and the first list at least includes an association relationship between the capability of the first frequency band combination and the capability of the second frequency band combination.

8. The method according to claim 1, characterized in that The method further comprises: The terminal sends third indication information to the network device, and the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination; or, the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

9. A communication method, characterized in that: include: The network device receives first indication information from the terminal, where the first indication information is used to indicate that a capability of a first frequency band combination supported by the terminal is associated with a capability of a second frequency band combination, where the capability of the first frequency band combination is the same as or different from the capability of the second frequency band combination, and the capability is an antenna switching capability and an uplink antenna switching capability; The network device determines, according to the first indication information, that a capability of the first frequency band combination is associated with a capability of the second frequency band combination.

10. The method according to claim 9, characterized in that The first indication information is a first indicator, the capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator; Correspondingly, the network device determines, according to the first indication information, that the capability of the first frequency band combination is associated with the capability of the second frequency band combination, including: The capability of the first frequency band combination is associated with the first indicator, and the capability of the second frequency band combination is associated with the first indicator, and the network device determines that the capability of the first frequency band combination is associated with the capability of the second frequency band combination.

11. The method according to claim 10, characterized in that The method further comprises: The network device receives second indication information from the terminal, where the second indication information is used to indicate capability association of multiple frequency band combinations having the same indicator; The network device determines, according to the second indication information, capability associations of a plurality of frequency band combinations having the same indicator.

12. The method according to claim 10 or 11, characterized in that: The network device receives first indication information from a terminal, including: The network device receives first capability information and second capability information from the terminal, where the first capability information and the second capability information both include the first indication information; The first capability information is used to indicate the capability of the first frequency band combination, and the second capability information is used to indicate the capability of the second frequency band combination.

13. The method according to claim 9, characterized in that The first indication information is first identification information, the first identification information is used to identify the second frequency band combination, the first identification information is associated with the capability of the first frequency band combination, and accordingly, the network device determines, according to the first indication information, that the capability of the first frequency band combination is associated with the capability of the second frequency band combination, including: The network device determines that the first identification information is associated with a capability of the first frequency band combination, and the network device determines that the capability of the first frequency band combination is associated with a capability of the second frequency band combination.

14. The method according to claim 13, characterized in that The network device receives first indication information from a terminal, including: The network device receives third capability information from the terminal, where the third capability information includes the first indication information, and the third capability information is used to indicate a capability of the first frequency band combination.

15. The method according to claim 9, characterized in that The first indication information is a first list, and the first list at least includes an association relationship between the capability of the first frequency band combination and the capability of the second frequency band combination.

16. The method according to claim 9, characterized in that The method further comprises: The network device receives third indication information from the terminal, and the third indication information is used to indicate that the antenna switching capability of the first frequency band combination is associated with the antenna switching capability of the second frequency band combination; or, the third indication information is used to indicate that the uplink antenna switching capability of the first frequency band combination is associated with the uplink antenna switching capability of the second frequency band combination.

17. A computer-readable storage medium, characterized in that: The readable storage medium stores instructions, and when the instructions are executed, the method according to any one of claims 1 to 8 is implemented, or the method according to any one of claims 9 to 16 is implemented.

18. A chip, characterized in that: The chip includes a processor, which is coupled to a communication interface. The processor is used to run a computer program or instruction to implement the method according to any one of claims 1 to 8, or to implement the method according to any one of claims 9 to 16. The communication interface is used to communicate with other modules outside the chip.

19. A terminal, characterized in that: include: At least one processor is coupled to a memory, and the at least one processor is configured to execute instructions stored in the memory to perform the method according to any one of claims 1 to 8.

20. A network device, characterized in that: include: At least one processor is coupled to a memory, and the at least one processor is configured to execute instructions stored in the memory to perform the method according to any one of claims 9 to 16.

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