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

Abstract

The invention 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, the terminal capability information comprising frequency band combination information supporting uplink sending switching, each frequency band combination in the frequency band combination information comprising M frequency bands, M being a natural number greater than 2, the frequency band combination information comprises information of a plurality of frequency band pairs supporting uplink sending switching in each frequency band combination and switching options supported by each frequency band pair, and the switching options comprise switching uplink, double uplink or switching uplink and double uplink; the plurality of frequency band pair information comprises switching time information of each frequency band pair, and the switching time of each frequency band pair comprises at least one of single transmitter switching time and dual transmitter switching time.

Description

[0001] This application is a divisional application of a Chinese patent application filed with the State Intellectual Property Office of China on August 2, 2023, with the application number 202310967715.3 and the invention title "Terminal Capability Reporting Method, User Terminal, Communication System and Storage Medium". Technical Field

[0002] 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

[0003] In the mobile access network FR1, the operator has spectrum resources in multiple frequency bands, including low-frequency bands below 1 GHz, medium-frequency bands around 2 GHz, and high-frequency bands above 3.5 GHz, so that the user terminal can perform uplink transmission on different frequency bands. Summary of the Invention

[0004] The inventors have noticed that in the related art, the user terminal has at most 2 sets of transmitters, so that uplink data can be transmitted in parallel on at most 2 frequency bands, and the transmission resources of multiple frequency bands cannot be flexibly utilized.

[0005] Accordingly, the present disclosure provides a terminal capability reporting method, in which the user sends the frequency band combination information supporting uplink transmission switching to the network-side device, so that the network-side device can accurately know the capabilities of the user terminal. Since the user terminal supports at least 3 uplink frequency bands in a frequency band combination, through dynamic transmitter switching, the user terminal can perform uplink transmission on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing the transmission resources of multiple frequency bands.

[0006] In a first aspect of the present disclosure, there is provided a terminal capability reporting method, which is executed by a user terminal, and the method includes: sending terminal capability information of the user terminal to a network-side device, where 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, and 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 unit 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.

[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 on the two frequency bands included in each frequency band pair, switching time information for each frequency band pair, and information on whether downlink interruption occurs for each frequency band in each frequency band combination when uplink transmission switching is performed for each frequency band pair.

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

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

[0012] In some embodiments, the single transmitter switching time is used to represent the time for single transmitter switching between two frequency bands.

[0013] In some embodiments, the dual transmitter switching time is used to represent the time for 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 the two frequency bands of the target frequency band pair.

[0015] In some embodiments, when only the dual transmitter switching time is reported for a 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 times for the single transmitter switching and the dual transmitter switching are the same.

[0016] In some embodiments, when the single transmitter switching time and the dual transmitter switching time are reported for a 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.

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

[0018] In some embodiments, the switching uplink is used to represent that the user terminal does not have the ability to perform uplink transmission in parallel for 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 ability to perform uplink transmissions in parallel on two frequency bands of the frequency band pair.

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

[0021] In some embodiments, when all the 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.

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

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

[0024] In a third aspect of the present disclosure, there is provided a user terminal, including: a memory; a processor coupled to the memory, the processor being configured to execute instructions stored in the memory to implement the method according to any one of the above embodiments.

[0025] In a fourth aspect of the present disclosure, there is provided a communication system, including: the user terminal according to any one of the above embodiments; a network-side device configured to perform service scheduling for the user terminal according to the terminal capability information sent by the user terminal.

[0026] According to a fifth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the method according to any one of the above embodiments is implemented.

[0027] Through the following detailed description of the exemplary embodiments of the present disclosure with reference to the accompanying drawings, other features and advantages of the present disclosure will become clear. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 Flow diagram of the terminal capability reporting method according to an embodiment of the present disclosure;

[0030] Figure 2 Structural diagram of a user terminal according to an embodiment of the present disclosure;

[0031] Figure 3 Structural diagram of a user terminal according to another embodiment of the present disclosure;

[0032] Figure 4 Structural diagram of a communication system according to an embodiment of the present disclosure. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a 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 in no way limits the present disclosure and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0034] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present disclosure.

[0035] Meanwhile, it should be understood that, for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship.

[0036] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and devices should be regarded as part of the specification.

[0037] In all the examples shown and discussed here, any specific value should be construed as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0038] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] Figure 1 Flow diagram of the terminal capability reporting method according to an embodiment of the present disclosure. In some embodiments, the following terminal capability reporting method is executed by a user terminal.

[0040] In step 101, terminal capability information of the user terminal is generated.

[0041] It should be noted that the terminal capability information includes band combination information supporting uplink transmission switching. Each band combination in the band combination information includes M bands, and M is a natural number greater than 2. That is, M≥3.

[0042] In some embodiments, the band combination information includes at least one of the following: uplink carrier unit information supported by each band in each band combination, and multiple band pair information supporting uplink transmission switching in each band combination.

[0043] In some embodiments, in each band combination, the number of band pairs for uplink transmission switching is C(M,2), where C is the combination function.

[0044] That is to say, the user terminal reports the uplink bandwidth class for the N bands.

[0045] For example, if M = 3, the number of band pairs in the band combination is C(3,2)=3. If M = 4, the number of band pairs in the band combination is C(4,2)=6.

[0046] In some embodiments, the multiple band pair information includes at least one of the following:

[0047] - Information of the 2 bands included in each band pair;

[0048] - Switching time information of each band pair;

[0049] - Information on whether uplink transmission switching of each band pair will cause downlink interruption of each band in each band combination.

[0050] In some embodiments, the switching time of each band pair includes at least one of the single transmitter switching time and the dual transmitter switching time.

[0051] It should be noted that the single transmitter switching time is used to represent the time for single transmitter switching between 2 bands.

[0052] In some embodiments, the single transmitter switching time is used to represent single transmitter to single transmitter 1Tx-1Tx switching and single transmitter to dual transmitter 1Tx-2Tx switching.

[0053] For example, in the case of 1Tx-1Tx switching, the transmitter switches from band A to band B, and there is 1 set of transmitters in both band A and band B, and the corresponding switching time is the single transmitter switching time.

[0054] For another example, in the case of 1Tx-2Tx handover, before the handover, two sets of transmitters are respectively located in frequency band A and frequency band B. After the handover, both sets of transmitters are in frequency band B, which is equivalent to only one transmitter performing the handover, and the corresponding handover time is the single transmitter handover time.

[0055] It should be noted that the dual transmitter handover time is used to represent the time for performing dual transmitter handover between two frequency bands.

[0056] For example, in the case of dual transmitter to dual transmitter 2Tx-2Tx handover, before the handover, both sets of transmitters are located in frequency band A. After the handover, both sets of transmitters are located in frequency band C, that is, both transmitters perform the handover, and the corresponding handover time is the dual transmitter handover time.

[0057] In some embodiments, when only the single transmitter handover time is reported for a target frequency band pair, the user terminal only supports single transmitter handover between the two frequency bands of the target frequency band pair.

[0058] In some embodiments, when only the dual transmitter handover time is reported for a target frequency band pair, the user terminal supports single transmitter handover and dual transmitter handover between the two frequency bands of the target frequency band pair, where the handover times of single transmitter handover and dual transmitter handover are the same.

[0059] In some embodiments, when the single transmitter handover time and the dual transmitter handover time are reported for a target frequency band pair, the user terminal supports single transmitter handover and dual transmitter handover between the two frequency bands of the target frequency band pair, where single transmitter handover is performed according to the single transmitter handover time, and dual transmitter handover is performed according to the dual transmitter handover time.

[0060] In some embodiments, the terminal capability information further includes the handover options supported by each frequency band pair, and the handover options include the following three cases: switched UL, dual UL, switched UL and dual UL.

[0061] It should be noted that switched UL is used to indicate that the user terminal does not have the ability to perform uplink transmission in parallel on the two frequency bands of the frequency band pair. Dual UL is used to indicate that the user terminal has the ability to perform uplink transmission in parallel on the two frequency bands of the frequency band pair. Of course, whether the user terminal performs uplink transmission in parallel depends on the scheduling of network side devices such as the base station.

[0062] In some embodiments, when the handover option is dual UL, the user terminal supports the uplink carrier aggregation (CA) ability based on the two frequency bands of the frequency band pair.

[0063] 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.

[0064] That is to say, if in each frequency band combination, all frequency band pairs support the same handover option, in this case, it is not necessary to report the handover option supported by each frequency band pair, but to report the handover option supported by this frequency band combination, thereby effectively reducing the amount of information transmitted.

[0065] In some embodiments, the terminal capability information further includes the capability information on whether each frequency band supporting a dual antenna connector can maintain uplink coherence in the case of uplink transmission handover.

[0066] In step 102, the terminal capability information of the user terminal is sent to the network-side device.

[0067] In the terminal capability reporting method provided in the above embodiments of the present disclosure, the user terminal sends its own terminal capability information to the network-side device, where the terminal capability information includes the frequency band combination information supporting uplink transmission handover, and each frequency band combination in the frequency band combination information includes M frequency bands, and M is a natural number greater than 2. Since the user terminal supports at least 3 uplink frequency bands in a frequency band combination, through dynamic transmitter handover, the user terminal can perform uplink transmission on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing the transmission resources of multiple frequency bands.

[0068] Figure 2 It is a schematic structural diagram of a user terminal according to an embodiment of the present disclosure. As Figure 2 shown, the user terminal 20 includes a service processing module 21.

[0069] The service processing module 21 is configured to generate the terminal capability information of the user terminal and send the terminal capability information of the user terminal to the network-side device, where the terminal capability information includes the frequency band combination information supporting uplink transmission handover, and each frequency band combination in the frequency band combination information includes M frequency bands, and M is a natural number greater than 2.

[0070] In some embodiments, the frequency band combination information includes at least one of the following: the uplink carrier unit information supported by each frequency band in each frequency band combination, and the multiple frequency band pair information supporting uplink transmission handover in each frequency band combination.

[0071] In some embodiments, in each frequency band combination, the number of frequency band pairs for uplink transmission handover is C(M,2), where C is a combination function.

[0072] That is, the user terminal reports the uplink bandwidth category for the N frequency bands.

[0073] 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.

[0074] In some embodiments, the multiple frequency band pair information includes at least one of the following:

[0075] - Information on the 2 frequency bands included in each frequency band pair;

[0076] - Switching time information for each frequency band pair;

[0077] - Information on whether a downlink interruption occurs for each frequency band in each frequency band combination when an uplink transmission switch is performed for each frequency band pair.

[0078] In some embodiments, the switching time for each frequency band pair includes at least one of a single transmitter switching time and a dual transmitter switching time.

[0079] It should be noted that the single transmitter switching time is used to represent the time for a single transmitter to switch between 2 frequency bands.

[0080] In some embodiments, the single transmitter switching time is used to represent a single transmitter to single transmitter 1Tx - 1Tx switch and a single transmitter to dual transmitter 1Tx - 2Tx switch.

[0081] For example, in the case of a 1Tx - 1Tx switch, the transmitter switches from frequency band A to frequency band B, and there is 1 set of transmitters in both frequency band A and frequency band B, and the corresponding switching time is the single transmitter switching time.

[0082] For another example, in the case of a 1Tx - 2Tx switch, before the switch, 2 sets of transmitters are respectively located in frequency band A and frequency band B. After the switch, both 2 sets of transmitters are in frequency band B, that is, it is equivalent to only 1 transmitter switching, and the corresponding switching time is the single transmitter switching time.

[0083] It should be noted that the dual transmitter switching time is used to represent the time for a dual transmitter to switch between 2 frequency bands.

[0084] For example, in the case of a dual transmitter to dual transmitter 2Tx - 2Tx switch, before the switch, 2 sets of transmitters are both located in frequency band A. After the switch, 2 sets of transmitters are both located in frequency band C, that is, both 2 transmitters have switched, and the corresponding switching time is the dual transmitter switching time.

[0085] In some embodiments, 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 2 frequency bands of the target frequency band pair.

[0086] In some embodiments, when only the dual transmitter handover time is reported for a target frequency band pair, the user terminal supports single transmitter handover and dual transmitter handover between the two frequency bands of the target frequency band pair, where the handover times of the single transmitter handover and the dual transmitter handover are the same.

[0087] In some embodiments, when the single transmitter handover time and the dual transmitter handover time are reported for a target frequency band pair, the user terminal supports single transmitter handover and dual transmitter handover between the two frequency bands of the target frequency band pair, where the single transmitter handover is performed according to the single transmitter handover time, and the dual transmitter handover is performed according to the dual transmitter handover time.

[0088] In some embodiments, the terminal capability information further includes the handover options supported by each frequency band pair, and the handover options include the following three cases: switched UL, dual UL, switched UL and dual UL.

[0089] It should be noted that switched UL is used to indicate that the user terminal does not have the ability to perform uplink transmission in parallel between the two frequency bands of the frequency band pair. Dual UL is used to indicate that the user terminal has the ability to perform uplink transmission in parallel between the two frequency bands of the frequency band pair. Of course, whether the user terminal performs uplink transmission in parallel depends on the scheduling of network-side devices such as the base station.

[0090] In some embodiments, when the handover option is dual UL, the user terminal supports the uplink carrier aggregation ability based on the two frequency bands of the frequency band pair.

[0091] In some embodiments, when all the 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.

[0092] That is to say, if in each frequency band combination, all the frequency band pairs support the same handover option, in this case, it is not necessary to report the handover options supported by each frequency band pair, but to report the handover option supported by this frequency band combination, thereby effectively reducing the amount of information transmission.

[0093] In some embodiments, the terminal capability information further includes the capability information on whether each frequency band supporting a dual antenna connector can maintain uplink correlation in the case of uplink transmission handover.

[0094] In the user terminal provided in the above embodiment of the present disclosure, the service processing module sends the terminal capability information of the user terminal itself to the network-side device, where the terminal capability information includes the frequency band combination information supporting uplink transmission switching, and each frequency band combination in the frequency band combination information includes M frequency bands, and M is a natural number greater than 2. Since the user terminal supports at least three uplink frequency bands in a frequency band combination, through dynamic transmitter switching, the user terminal can perform uplink transmission on different frequency bands or frequency band pairs at different times, thereby more flexibly utilizing the transmission resources of multiple frequency bands.

[0095] Figure 3 Schematic structural diagram of a user terminal according to another embodiment of the present disclosure. As Figure 3 shown, the user terminal includes a memory 31 and a processor 32.

[0096] The memory 31 is used to store instructions, the processor 32 is coupled to the memory 31, and the processor 32 is configured to execute the methods involved in any of the embodiments as Figure 1 described.

[0097] As Figure 3 shown, the user terminal further includes a communication interface 33 for information interaction with other devices. At the same time, the user terminal further includes a bus 34, and the processor 32, the communication interface 33, and the memory 31 complete mutual communication through the bus 34.

[0098] The memory 31 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory. The memory 31 may also be a memory array. The memory 31 may also be partitioned, and the blocks may be combined into virtual volumes according to certain rules.

[0099] In addition, the processor 32 may be a central processing unit CPU, or may be an application specific integrated circuit ASIC, or may be one or more integrated circuits configured to implement the embodiments of the present disclosure.

[0100] The present disclosure also relates to a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the methods involved in any of the embodiments as Figure 1 described are implemented.

[0101] Figure 4 Schematic structural diagram of a communication system according to an embodiment of the present disclosure. As Figure 4 shown, the communication system includes a user terminal 41 and a network-side device 42. The user terminal 41 is Figure 2 or Figure 3 the user terminal involved in any of the embodiments described.

[0102] 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.

[0103] In some embodiments, the network-side device 42 is a base station.

[0104] By implementing the above embodiments of the present disclosure, since the user terminal supports at least 3 uplink frequency bands in a frequency band combination, through dynamic transmitter switching, the user terminal can perform uplink transmission on 3 or more frequency bands at different times. Thus, when the user terminal has at most 2 sets of transmitters, it can still use multiple uplink frequency bands, thereby more flexibly utilizing the transmission resources of multiple frequency bands.

[0105] In some embodiments, the functional units described above can be implemented as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any suitable combination thereof for performing the functions described in the present disclosure.

[0106] Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware or by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium, and the storage medium mentioned above can be a read-only memory, a magnetic disk, an optical disk, or the like.

[0107] The description of the present disclosure is given for purposes of illustration and description, and is not intended to be exhaustive or to limit the present disclosure to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to best explain the principles of the present disclosure and its practical applications, and to enable those of ordinary skill in the art to understand the present disclosure and design various embodiments with various modifications suitable for specific purposes.

Claims

1. A method for reporting terminal capabilities, which is executed by a user terminal. The method includes: Sending terminal capability information of the user terminal to a network-side device, where 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, and M is a natural number greater than 2; Wherein, the frequency band combination information includes multiple frequency band pair information supporting uplink transmission switching in each frequency band combination, and switching options supported by each frequency band pair, and the switching options include switching uplink, dual uplink, or the switching uplink and the dual uplink; The multiple frequency band pair information includes switching time information of each frequency band pair, and the switching time of each frequency band pair includes at least one of a single transmitter switching time and a dual transmitter switching time.

2. The method according to claim 1, wherein, The frequency band combination information further includes uplink carrier unit information supported by each frequency band 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 further includes at least one of the following: information of 2 frequency bands included in each frequency band pair, and information on whether each frequency band in each frequency band combination will cause a downlink interruption when switching uplink transmission in each frequency band pair.

5. The method according to claim 1, wherein, The single transmitter switching time is used to represent the time for single transmitter switching between 2 frequency bands.

6. The method according to claim 5, wherein, The single transmitter switching time is used to represent single transmitter to single transmitter 1Tx-1Tx switching and single transmitter to dual transmitter 1Tx-2Tx switching.

7. The method according to claim 1, wherein, The dual transmitter switching time is used to represent the time for dual transmitter switching between 2 frequency bands.

8. The method according to claim 1, wherein, In the case where only the single transmitter switching time is reported for a target frequency band pair, the user terminal only supports single transmitter switching between the 2 frequency bands of the target frequency band pair.

9. The method according to claim 1, wherein, In the case where only the dual transmitter switching time is reported for a target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the 2 frequency bands of the target frequency band pair, and the switching times of the single transmitter switching and the dual transmitter switching are the same.

10. The method according to claim 1, wherein, In the case where the single transmitter switching time and the dual transmitter switching time are reported for a target frequency band pair, the user terminal supports single transmitter switching and dual transmitter switching between the 2 frequency bands of the target frequency band pair.

11. The method according to claim 10, wherein, Perform the single transmitter switching according to the single transmitter switching time, and perform the dual transmitter switching according to the dual transmitter switching time.

12. The method according to claim 1, wherein the switched uplink is used to indicate that the user terminal does not have the ability to perform uplink transmissions in parallel on the two frequency bands of the frequency band pair.

13. The method according to claim 1, wherein the dual uplink is used to indicate that the user terminal has the ability to perform uplink transmissions in parallel on the two frequency bands of the frequency band pair.

14. The method according to claim 13, wherein when the switching option is the dual uplink, the user terminal supports uplink carrier aggregation ability based on the two frequency bands of the frequency band pair.

15. The method according to claim 1, wherein when 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.

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

17. A user terminal, 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, each frequency band combination in the frequency band combination information includes M frequency bands, M is a natural number greater than 2, wherein the frequency band combination information includes a plurality of frequency band pair information supporting uplink transmission switching in each frequency band combination, and a switching option supported by each frequency band pair, the switching option includes a switched uplink, a dual uplink, or the switched uplink and the dual uplink, the plurality of frequency band pair information includes switching time information of each frequency band pair, and the switching time of each frequency band pair includes at least one of a single transmitter switching time and a dual transmitter switching time.

18. A user terminal, comprising: a memory; a processor coupled to the memory, the processor being configured to execute instructions stored in the memory to implement the method according to any one of claims 1-16.

19. A communication system, comprising: a user terminal according to claim 17 or 18; a network-side device configured to perform service scheduling for the user terminal according to the terminal capability information sent by the user terminal.

20. A computer-readable storage medium, wherein, A computer-readable storage medium stores computer instructions, and when the instructions are executed by a processor, the method according to any one of claims 1-16 is implemented.

Images