Terminal capability reporting method, user terminal, communication system and storage medium

Abstract

The present disclosure provides a terminal capability reporting method, a user terminal, a communication system, and a storage medium. The terminal capability reporting method comprises: sending terminal capability information of a user terminal to a network side device, wherein the terminal capability information comprises band combination information supporting uplink transmission switching, each band combination in the band combination information comprises M bands, and M is a natural number greater than 2.

Description

Terminal capability reporting method, user terminal, communication system and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on and claims priority to an application with CN application number 202310967715.3 and filing date August 2, 2023. The disclosure content of the CN application is hereby incorporated into this disclosure as a whole. Technical Field

[0003] The present disclosure relates to the field of communications, and in particular to a terminal capability reporting method, a user terminal, a communication system, and a storage medium. Background Art

[0004] In the mobile access network FR1, operators have spectrum resources in multiple frequency bands, including low-frequency bands below 1 GHz, mid-frequency bands around 2 GHz, and high-frequency bands of 3.5 GHz and above, so that user terminals can perform uplink transmissions on different frequency bands.

[0005] Summary of the Invention

[0006] In a first aspect of the present disclosure, a terminal capability reporting method is provided, which is executed by a user terminal. The method includes: sending terminal capability information of the user terminal to a network side device, wherein the terminal capability information includes frequency band combination information supporting uplink transmission switching, and each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2.

[0007] In some embodiments, the frequency band combination information includes at least one of the following: uplink carrier component information supported by each frequency band in each frequency band combination, and information on multiple frequency band pairs supporting uplink transmission switching in each frequency band combination.

[0008] In some embodiments, in each frequency band combination, the number of frequency band pairs for uplink transmission switching is C(M, 2), where C is a combination function.

[0009] In some embodiments, the multiple frequency band pair information includes at least one of the following: information about the two frequency bands included in each frequency band pair, switching time information of each frequency band pair, and information about whether uplink transmission switching of each frequency band pair will cause downlink interruption in each frequency band in each frequency band combination.

[0010] In some embodiments, the switching time of each frequency band pair includes at least one of a single-transmitter switching time and a dual-transmitter switching time.

[0011] In some embodiments, single transmitter switching time is used to represent single transmit to single transmit 1Tx-1Tx switching and single transmit to dual transmit 1Tx-2Tx switching.

[0012] In some embodiments, the single transmitter switching time is used to indicate the time required to switch a single transmitter between two frequency bands.

[0013] In some embodiments, the dual-transmitter switching time is used to indicate the time for performing dual-transmitter switching between two frequency bands.

[0014] In some embodiments, when only the single transmitter switching time is reported for a target frequency band pair, the user terminal only supports single transmitter switching between two frequency bands of the target frequency band pair.

[0015] In some embodiments, when only the dual-transmitter switching time is reported for the target frequency band pair, the user terminal supports single-transmitter switching and dual-transmitter switching between the two frequency bands of the target frequency band pair, wherein the switching time of the single-transmitter switching and the dual-transmitter switching is the same.

[0016] In some embodiments, when the single transmitter switching time and the dual transmitter switching time are reported for the target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the two frequency bands of the target frequency band pair, wherein the single transmitter switching is performed according to the single transmitter switching time, and the dual transmitter switching is performed according to the dual transmitter switching time.

[0017] In some embodiments, the terminal capability information further includes a switching option supported by each frequency band pair, and the switching option includes switching uplink, dual uplink, or the switching uplink and the dual uplink.

[0018] In some embodiments, the switching uplink is used to indicate that the user terminal does not have the capability of performing uplink transmission in parallel on the two frequency bands of the frequency band pair.

[0019] In some embodiments, the dual uplink is used to indicate that the user terminal has the capability of performing uplink transmission in parallel in the two frequency bands of the frequency band pair.

[0020] In some embodiments, when the switching option is the dual uplink, the user terminal supports uplink carrier aggregation capability based on the two frequency bands of the frequency band pair.

[0021] In some embodiments, when all frequency band pairs in each frequency band combination support the same switching option, the terminal capability information includes the switching options supported by each frequency band combination.

[0022] In some embodiments, the terminal capability information further includes capability information of whether each frequency band supporting dual antenna connectors can maintain uplink correlation in the case of uplink transmission switching.

[0023] In a second aspect of the present disclosure, a user terminal is provided, comprising: a service processing module configured to send terminal capability information of the user terminal to a network side device, wherein the terminal capability information includes frequency band combination information supporting uplink transmission switching, and each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2.

[0024] In a third aspect of the present disclosure, a user terminal is provided, comprising: a memory; and a processor coupled to the memory, wherein the processor is configured to execute the method as described in any of the above embodiments based on instructions stored in the memory.

[0025] In a fourth aspect of the present disclosure, a communication system is provided, comprising: a user terminal as described in any of the above embodiments; and a network-side device configured to perform service scheduling for the user terminal based on terminal capability information sent by the user terminal.

[0026] According to a fifth aspect of an embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the method described in any of the above embodiments is implemented.

[0027] According to a sixth aspect of an embodiment of the present disclosure, a computer program is provided, comprising computer instructions, wherein when the computer instructions are executed by a processor, the method described in any of the above embodiments is implemented.

[0028] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] FIG1 is a schematic diagram of a process of a terminal capability reporting method according to an embodiment of the present disclosure;

[0031] FIG2 is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure;

[0032] FIG3 is a schematic structural diagram of a user terminal according to another embodiment of the present disclosure;

[0033] FIG4 is a schematic structural diagram of a communication system according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0035] Unless specifically stated otherwise, the relative arrangement of components and steps, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure.

[0036] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0037] Technologies, methods and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods and equipment should be considered part of the authorization specification.

[0038] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0039] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] The inventors have noticed that in the related art, a user terminal has at most two sets of transmitters, thereby sending uplink data in parallel on at most two frequency bands, and is unable to flexibly utilize transmission resources of multiple frequency bands.

[0041] Accordingly, the present disclosure provides a terminal capability reporting method in which a user sends information about frequency band combinations that support uplink transmission switching to a network device, enabling the network device to accurately determine the user terminal's capabilities. Because a user terminal supports at least three uplink frequency bands within a frequency band combination, dynamic transmitter switching allows the user terminal to perform uplink transmissions on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing transmission resources across multiple frequency bands.

[0042] Figure 1 is a flow chart of a method for reporting terminal capabilities according to an embodiment of the present disclosure. In some embodiments, the following method for reporting terminal capabilities is executed by a user terminal.

[0043] In step 101, terminal capability information of a user terminal is generated.

[0044] It should be noted that the terminal capability information includes band combination information supporting uplink transmission switching, and each band combination in the band combination information includes M bands, where M is a natural number greater than 2. That is, M≥3.

[0045] In some embodiments, the frequency band combination information includes at least one of the following: uplink carrier component information supported by each frequency band in each frequency band combination, and information on multiple frequency band pairs supporting uplink transmission switching in each frequency band combination.

[0046] In some embodiments, in each frequency band combination, the number of frequency band pairs for uplink transmission switching is C(M, 2), where C is a combination function.

[0047] That is, the user terminal reports the uplink bandwidth class for the N frequency bands.

[0048] For example, if M = 3, the number of frequency band pairs in the frequency band combination is C(3, 2) = 3. If M = 4, the number of frequency band pairs in the frequency band combination is C(4, 2) = 6.

[0049] In some embodiments, the plurality of frequency band pair information includes at least one of the following:

[0050] - Information about the two frequency bands included in each frequency band pair;

[0051] -Switching time information for each band pair;

[0052] - Information on whether uplink transmission switching of each frequency band pair will cause downlink interruption in each frequency band in each frequency band combination.

[0053] In some embodiments, the switching time for each band pair includes at least one of a single-transmitter switching time and a dual-transmitter switching time.

[0054] It should be noted that the single transmitter switching time is used to indicate the time it takes to switch a single transmitter between two frequency bands.

[0055] In some embodiments, single transmitter switching time is used to represent single transmit to single transmit 1Tx-1Tx switching and single transmit to dual transmit 1Tx-2Tx switching.

[0056] For example, in the case of 1Tx-1Tx switching, the transmitter switches from frequency band A to frequency band B. There is one transmitter in each of frequency bands A and B, and the corresponding switching time is the single transmitter switching time.

[0057] For example, in the 1Tx-2Tx switching scenario, before the switch, the two transmitters are located in frequency band A and frequency band B, respectively. After the switch, both transmitters are in frequency band B, which means that only one transmitter has been switched, and the corresponding switching time is the single transmitter switching time.

[0058] It should be noted that the dual-transmitter switching time is used to indicate the time for performing dual-transmitter switching between two frequency bands.

[0059] For example, in the case of dual-transmit to dual-transmit 2Tx-2Tx switching, before the switch, both transmitters are located in frequency band A. After the switch, both transmitters are located in frequency band C, that is, both transmitters are switched, and the corresponding switching time is the dual-transmitter switching time.

[0060] In some embodiments, when only a single transmitter switching time is reported for a target frequency band pair, the user terminal only supports single transmitter switching between two frequency bands of the target frequency band pair.

[0061] In some embodiments, when only the dual-transmitter switching time is reported for the target frequency band pair, the user terminal supports single-transmitter switching and dual-transmitter switching between the two frequency bands of the target frequency band pair, where the switching time of the single-transmitter switching and the dual-transmitter switching is the same.

[0062] In some embodiments, when the single transmitter switching time and the dual transmitter switching time are reported for the target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the two frequency bands of the target frequency band pair, where the single transmitter switching is performed according to the single transmitter switching time, and the dual transmitter switching is performed according to the dual transmitter switching time.

[0063] In some embodiments, the terminal capability information further includes switching options supported by each frequency band pair, and the switching options include the following three cases: switched UL, dual UL, switched UL, and dual UL.

[0064] It should be noted that "switching uplink" indicates that the user terminal is not capable of performing uplink transmissions concurrently on both frequency bands in the frequency band pair. "Dual uplink" indicates that the user terminal is capable of performing uplink transmissions concurrently on both frequency bands in the frequency band pair. Whether the user terminal performs concurrent uplink transmissions depends on the scheduling of network-side equipment, such as base stations.

[0065] In some embodiments, when the switching option is dual uplink, the user terminal supports uplink carrier aggregation (CA) capability based on two frequency bands of the frequency band pair.

[0066] In some embodiments, when all frequency band pairs in each frequency band combination support the same handover option, the terminal capability information includes the handover option supported by each frequency band combination.

[0067] That is to say, if all frequency band pairs in each frequency band combination support the same switching options, in this case, there is no need to report the switching options supported by each frequency band pair, but instead report the switching options supported by the frequency band combination, thereby effectively reducing the amount of information transmission.

[0068] In some embodiments, the terminal capability information further includes capability information on whether each frequency band supporting a dual antenna connector can maintain uplink coherence (UL coherence) in the case of uplink transmission switching.

[0069] In step 102, the terminal capability information of the user terminal is sent to the network side device.

[0070] In the terminal capability reporting method provided in the above-described embodiment of the present disclosure, a user terminal transmits its terminal capability information to a network-side device, where the terminal capability information includes information about frequency band combinations that support uplink transmission switching. Each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2. Because the user terminal supports at least three uplink frequency bands in a frequency band combination, dynamic transmitter switching allows the user terminal to perform uplink transmissions on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing transmission resources in multiple frequency bands.

[0071] FIG2 is a schematic diagram of the structure of a user terminal according to an embodiment of the present disclosure. As shown in FIG2 , the user terminal 20 includes a service processing module 21 .

[0072] The service processing module 21 is configured to generate terminal capability information of the user terminal and send the terminal capability information of the user terminal to the network side device, wherein the terminal capability information includes frequency band combination information supporting uplink transmission switching, and each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2.

[0073] In some embodiments, the frequency band combination information includes at least one of the following: uplink carrier component information supported by each frequency band in each frequency band combination, and information on multiple frequency band pairs supporting uplink transmission switching in each frequency band combination.

[0074] In some embodiments, in each frequency band combination, the number of frequency band pairs for uplink transmission switching is C(M, 2), where C is a combination function.

[0075] That is, the user terminal reports the uplink bandwidth categories for the N frequency bands.

[0076] For example, if M = 3, the number of frequency band pairs in the frequency band combination is C(3, 2) = 3. If M = 4, the number of frequency band pairs in the frequency band combination is C(4, 2) = 6.

[0077] In some embodiments, the plurality of frequency band pair information includes at least one of the following:

[0078] - Information about the two frequency bands included in each frequency band pair;

[0079] -Switching time information for each band pair;

[0080] - Information on whether uplink transmission switching of each frequency band pair will cause downlink interruption in each frequency band in each frequency band combination.

[0081] In some embodiments, the switching time for each band pair includes at least one of a single-transmitter switching time and a dual-transmitter switching time.

[0082] It should be noted that the single transmitter switching time is used to indicate the time it takes to switch a single transmitter between two frequency bands.

[0083] In some embodiments, single transmitter switching time is used to represent single transmit to single transmit 1Tx-1Tx switching and single transmit to dual transmit 1Tx-2Tx switching.

[0084] For example, in the case of 1Tx-1Tx switching, the transmitter switches from frequency band A to frequency band B. There is one set of transmitters in both frequency band A and frequency band B, and the corresponding switching time is the single transmitter switching time.

[0085] For example, in the 1Tx-2Tx switching scenario, before the switch, the two transmitters are located in frequency band A and frequency band B, respectively. After the switch, both transmitters are in frequency band B, which means that only one transmitter has been switched, and the corresponding switching time is the single transmitter switching time.

[0086] It should be noted that the dual-transmitter switching time is used to indicate the time for performing dual-transmitter switching between two frequency bands.

[0087] For example, in the case of dual-transmit to dual-transmit 2Tx-2Tx switching, before the switch, both transmitters are located in frequency band A. After the switch, both transmitters are located in frequency band C, that is, both transmitters are switched, and the corresponding switching time is the dual-transmitter switching time.

[0088] In some embodiments, when only a single transmitter switching time is reported for a target frequency band pair, the user terminal only supports single transmitter switching between two frequency bands of the target frequency band pair.

[0089] In some embodiments, when only the dual-transmitter switching time is reported for the target frequency band pair, the user terminal supports single-transmitter switching and dual-transmitter switching between the two frequency bands of the target frequency band pair, where the switching time of the single-transmitter switching and the dual-transmitter switching is the same.

[0090] In some embodiments, when the single transmitter switching time and the dual transmitter switching time are reported for the target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the two frequency bands of the target frequency band pair, where the single transmitter switching is performed according to the single transmitter switching time, and the dual transmitter switching is performed according to the dual transmitter switching time.

[0091] In some embodiments, the terminal capability information further includes switching options supported by each frequency band pair, and the switching options include the following three cases: switched UL, dual UL, switched UL, and dual UL.

[0092] It should be noted that "switching uplink" indicates that the user terminal is not capable of performing uplink transmissions concurrently on both frequency bands in the frequency band pair. "Dual uplink" indicates that the user terminal is capable of performing uplink transmissions concurrently on both frequency bands in the frequency band pair. Whether the user terminal performs concurrent uplink transmissions depends on the scheduling of network-side equipment, such as base stations.

[0093] In some embodiments, when the switching option is dual uplink, the user terminal supports uplink carrier aggregation capability based on two frequency bands of the frequency band pair.

[0094] In some embodiments, when all frequency band pairs in each frequency band combination support the same handover option, the terminal capability information includes the handover option supported by each frequency band combination.

[0095] That is to say, if all frequency band pairs in each frequency band combination support the same switching options, in this case, there is no need to report the switching options supported by each frequency band pair, but instead report the switching options supported by the frequency band combination, thereby effectively reducing the amount of information transmission.

[0096] In some embodiments, the terminal capability information further includes capability information on whether each frequency band supporting dual antenna connectors can maintain uplink correlation in the case of uplink transmission switching.

[0097] In the user terminal provided by the above-described embodiments of the present disclosure, the service processing module transmits the user terminal's own terminal capability information to the network-side device, where the terminal capability information includes frequency band combination information supporting uplink transmission switching. Each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2. Because the user terminal supports at least three uplink frequency bands in a frequency band combination, dynamic transmitter switching allows the user terminal to perform uplink transmissions on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing transmission resources in multiple frequency bands.

[0098] FIG3 is a schematic diagram of the structure of a user terminal according to another embodiment of the present disclosure. As shown in FIG3 , the user terminal includes a memory 31 and a processor 32 .

[0099] The memory 31 is used to store instructions. The processor 32 is coupled to the memory 31 . The processor 32 is configured to execute the method involved in any embodiment in FIG. 1 based on the instructions stored in the memory.

[0100] As shown in Figure 3, the user terminal also includes a communication interface 33 for exchanging information with other devices. At the same time, the user terminal also includes a bus 34, through which the processor 32, the communication interface 33, and the memory 31 communicate with each other.

[0101] Memory 31 may include high-speed RAM memory or non-volatile memory, such as at least one disk drive. Memory 31 may also be a memory array. Memory 31 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

[0102] Furthermore, the processor 32 may be a central processing unit (CPU), or may be an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the present disclosure.

[0103] The present disclosure also relates to a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the method involved in any embodiment of FIG. 1 is implemented.

[0104] The present disclosure further relates to a computer program, comprising computer instructions, wherein when the computer instructions are executed by a processor, the method involved in any one of the embodiments in FIG. 1 is implemented.

[0105] Figure 4 is a schematic diagram of the structure of a communication system according to an embodiment of the present disclosure. As shown in Figure 4, the communication system includes a user terminal 41 and a network-side device 42. The user terminal 41 is the user terminal involved in any of the embodiments of Figure 2 or Figure 3.

[0106] The network-side device 42 is configured to perform service scheduling for the user terminal according to the terminal capability information sent by the user terminal 41 .

[0107] In some embodiments, the network side device 42 is a base station.

[0108] By implementing the above-described embodiments of the present disclosure, since the user terminal supports at least three uplink frequency bands in a frequency band combination, dynamic transmitter switching enables the user terminal to perform uplink transmissions on three or more frequency bands at different times. Thus, even if the user terminal has a maximum of two transmitter sets, it can still use multiple uplink frequency bands, thereby more flexibly utilizing transmission resources in multiple frequency bands.

[0109] In some embodiments, the functional units described above may be implemented as general-purpose processors, programmable logic controllers (PLC), digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any appropriate combination thereof, for performing the functions described in the present disclosure.

[0110] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0111] The description of the present disclosure is provided for purposes of illustration and description and is not intended to be exhaustive or to limit the disclosure to the disclosed form. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present disclosure and to enable those skilled in the art to understand the present disclosure and design various embodiments with various modifications suitable for specific applications.

Claims

1. A terminal capability reporting method, executed by a user terminal, comprising: The terminal capability information of the user terminal is sent to a network side device, wherein the terminal capability information includes frequency band combination information supporting uplink transmission switching, each frequency band combination in the frequency band combination information includes M frequency bands, and M is a natural number greater than 2.

2. The method according to claim 1, wherein: The frequency band combination information includes at least one of the following: uplink carrier component information supported by each frequency band in each frequency band combination, and multiple frequency band pair information supporting uplink transmission switching in each frequency band combination.

3. The method according to claim 2, wherein: In each frequency band combination, the number of frequency band pairs for uplink transmission switching is C(M,2), where C is a combination function.

4. The method according to claim 2, wherein: The multiple frequency band pair information includes at least one of the following: information about the two frequency bands included in each frequency band pair, switching time information of each frequency band pair, and information about whether uplink transmission switching of each frequency band pair will cause downlink interruption in each frequency band in each frequency band combination.

5. The method according to claim 4, wherein: The switching time of each frequency band pair includes at least one of a single transmitter switching time and a dual transmitter switching time.

6. The method according to claim 5, wherein: The single transmitter switching time is used to indicate the time for switching a single transmitter between two frequency bands.

7. The method according to claim 6, wherein: The single transmitter switching time is used to represent single-transmit to single-transmit 1Tx-1Tx switching and single-transmit to dual-transmit 1Tx-2Tx switching.

8. The method according to claim 5, wherein: The dual transmitter switching time is used to indicate the time for performing dual transmitter switching between two frequency bands.

9. The method according to claim 5, wherein: In the case where only the single transmitter switching time is reported for the target frequency band pair, the user terminal only supports single transmitter switching between the two frequency bands of the target frequency band pair.

10. The method according to claim 5, wherein: In the case where only the dual transmitter switching time is reported for the target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the two frequency bands of the target frequency band pair, wherein the switching time of the single transmitter switching and the dual transmitter switching is the same.

11. The method according to claim 5, wherein: In the case where the single transmitter switching time and the dual transmitter switching time are reported for the target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the two frequency bands of the target frequency band pair, wherein the single transmitter switching is performed according to the single transmitter switching time, and the dual transmitter switching is performed according to the dual transmitter switching time.

12. The method according to claim 2, wherein: The terminal capability information further includes a switching option supported by each frequency band pair, and the switching option includes switching uplink, dual uplink, or the switching uplink and the dual uplink.

13. The method according to claim 12, wherein: The switching uplink is used to indicate that the user terminal does not have the capability of performing uplink transmission in parallel in the two frequency bands of the frequency band pair.

14. The method according to claim 12, wherein: The dual uplink is used to indicate that the user terminal has the capability of performing uplink transmission in parallel in the two frequency bands of the frequency band pair.

15. The method according to claim 14, wherein: When the switching option is the dual uplink, the user terminal supports uplink carrier aggregation capability based on two frequency bands of the frequency band pair.

16. The method according to claim 12, wherein: In the case that all the frequency band pairs in each frequency band combination support the same switching option, the terminal capability information includes the switching option supported by each frequency band combination.

17. The method according to claim 1, wherein: The terminal capability information also includes capability information of whether each frequency band supporting the dual antenna connector can maintain uplink correlation in the case of uplink transmission switching.

18. A user terminal, comprising: The service processing module is configured to send the terminal capability information of the user terminal to the network side device, wherein the terminal capability information includes frequency band combination information supporting uplink transmission switching, and each frequency band combination in the frequency band combination information includes M frequency bands, where M is a natural number greater than 2.

19. A user terminal, comprising: Memory; A processor is coupled to the memory, and the processor is configured to execute the method according to any one of claims 1 to 17 based on instructions stored in the memory.

20. A communication system comprising: The user terminal according to claim 18 or 19; The network side device is configured to perform service scheduling for the user terminal according to the terminal capability information sent by the user terminal.

21. A computer-readable storage medium, wherein: The computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the method according to any one of claims 1 to 17 is implemented.

22. A computer program comprising computer instructions, wherein when the computer instructions are executed by a processor, the method according to any one of claims 1 to 17 is implemented.

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