Terminal capability reporting method, device, equipment and medium

Abstract

The invention discloses a terminal capability reporting method, device and equipment and a medium, and relates to the field of wireless communication. The method is applied to a terminal device, the terminal device comprising at least two subscriber identity cards, the method comprising: transmitting terminal capability information of a first frequency band combination to a network device, the first frequency band combination comprising an operating frequency band when the at least two subscriber identity cards work at the same time (210). According to the method, the terminal equipment reports the capability information of each user identification card to the network equipment when the plurality of user identification cards work at the same time, so that the network equipment can conveniently carry out communication scheduling.

Description

Terminal capability reporting method, device, equipment and medium Technical Field

[0001] The present application relates to the field of wireless communications, and in particular to a method, apparatus, device, and medium for reporting terminal capabilities. Background Art

[0002] A multi-SIM terminal device refers to a terminal device (User Equipment, UE) that contains multiple SIMs (Subscriber Identity Modules).

[0003] Some multi-SIM terminal devices support multi-standby multi-communication (multiple SIM cards can be in standby and connected communication mode simultaneously). Due to the limitations of the terminal device hardware capabilities, the communication capabilities of some SIM cards may be reduced when the terminal device is in multi-standby multi-communication mode.

[0004] However, in the related art, the terminal device only reports the communication capability of each SIM card when working alone to the network device, and the network device cannot effectively schedule communications in the multi-standby multi-communication state based on the communication capability.

[0005] Summary of the Invention

[0006] The present invention provides a method, apparatus, device, and medium for reporting terminal capabilities, which enables a terminal device to report the capability information of each user identification card when multiple user identification cards are working simultaneously to a network device, thereby facilitating communication scheduling by the network device. The technical solution is as follows:

[0007] According to one aspect of the present application, a method for reporting terminal capabilities is provided, the method being performed by a terminal device, the terminal device including at least two user identification cards, the method comprising:

[0008] The terminal capability information of the first frequency band combination is sent to the network device, where the first frequency band combination includes the working frequency bands when the at least two subscriber identification cards work simultaneously.

[0009] According to one aspect of the present application, a method for reporting terminal capabilities is provided, the method being performed by a network device, the method comprising:

[0010] Terminal capability information of a first frequency band combination sent by a terminal device is received, where the terminal device includes at least two subscriber identification cards, and the first frequency band combination includes operating frequency bands when the at least two subscriber identification cards operate simultaneously.

[0011] According to one aspect of the present application, a terminal capability reporting device is provided, the device including at least two user identification cards, the device including:

[0012] The first sending module is configured to send terminal capability information of a first frequency band combination to a network device, where the first frequency band combination includes operating frequency bands when at least two subscriber identification cards operate simultaneously.

[0013] According to one aspect of the present application, a terminal capability reporting device is provided, the device comprising:

[0014] The second receiving module is used to receive terminal capability information of a first frequency band combination sent by a terminal device, wherein the terminal device includes at least two user identification cards, and the first frequency band combination includes working frequency bands when the at least two user identification cards work simultaneously.

[0015] According to one aspect of the present application, a terminal device is provided, comprising: a processor and a transceiver connected to the processor; wherein,

[0016] The transceiver is used to send terminal capability information of a first frequency band combination to a network device, wherein the first frequency band combination includes a working frequency band when at least two user identification cards work simultaneously, and the terminal device includes the at least two user identification cards. According to one aspect of the present application, a network device is provided, comprising: a processor and a transceiver connected to the processor; wherein,

[0017] The transceiver is configured to receive terminal capability information of a first frequency band combination sent by a terminal device, the terminal device including at least two user identification cards, and the first frequency band combination including an operating frequency band when the at least two user identification cards operate simultaneously. According to one aspect of the present application, a terminal device is provided, comprising: a processor and a memory, the memory storing at least one instruction, at least one program, a code set, or an instruction set, the at least one instruction, the at least one program, the code set, or the instruction set being loaded and executed by the processor to implement the terminal capability reporting method described in the above aspect.

[0018] According to one aspect of the present application, a network device is provided, comprising: a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set, or an instruction set, and the at least one instruction, the at least one program, the code set, or the instruction set is loaded and executed by the processor to implement the terminal capability reporting method as described in the above aspect.

[0019] According to one aspect of the present application, a computer-readable storage medium is provided, in which executable instructions are stored. The executable instructions are loaded and executed by a processor to enable a communication device to implement the terminal capability reporting method as described in the above aspect.

[0020] According to one aspect of an embodiment of the present application, a chip is provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to enable the communication device to implement the terminal capability reporting method described in the above aspect.

[0021] According to one aspect of the present application, a computer program product is provided. When the computer program product is executed on a processor of a communication device, the communication device executes the terminal capability reporting method described in the above aspect.

[0022] The technical solutions provided by the embodiments of the present application include at least the following beneficial effects:

[0023] Terminal devices can report to network equipment the capabilities of multiple SIM cards operating simultaneously, including the operating frequency band information of each SIM card. This allows the network equipment to understand the terminal device's communication capabilities when multiple SIM cards are operating simultaneously. When multiple SIM cards are operating simultaneously, the network equipment can optimize communication scheduling for each SIM card based on the SIM card's operating frequency band information, improving communication efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0025] FIG1 is a schematic diagram of a terminal device provided by an exemplary embodiment of the present application;

[0026] FIG2 is a schematic diagram of a terminal device provided by an exemplary embodiment of the present application;

[0027] FIG3 is a schematic diagram of a terminal device provided by an exemplary embodiment of the present application;

[0028] FIG4 is a schematic diagram of a terminal device provided by an exemplary embodiment of the present application;

[0029] FIG5 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

[0030] FIG6 is a flowchart of a method for reporting terminal capabilities provided by an exemplary embodiment of the present application;

[0031] FIG7 is a flow chart of a method for reporting terminal capabilities provided by an exemplary embodiment of the present application;

[0032] FIG8 is a flowchart of a method for reporting terminal capabilities provided by an exemplary embodiment of the present application;

[0033] FIG9 is a flowchart of a method for reporting terminal capabilities provided by an exemplary embodiment of the present application;

[0034] FIG10 is a flowchart of a method for reporting terminal capabilities provided by an exemplary embodiment of the present application;

[0035] FIG11 is a schematic diagram of frequency band interference provided by an exemplary embodiment of the present application;

[0036] FIG12 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

[0037] FIG13 is a schematic diagram of a communication system provided by an exemplary embodiment of the present application;

[0038] FIG14 is a schematic diagram of a terminal device provided by an exemplary embodiment of the present application;

[0039] FIG15 is a schematic diagram of frequency band interference provided by an exemplary embodiment of the present application;

[0040] FIG16 is a structural block diagram of a terminal capability reporting device provided by an exemplary embodiment of the present application;

[0041] FIG17 is a structural block diagram of a terminal capability reporting device provided by an exemplary embodiment of the present application;

[0042] FIG18 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0043] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0044] 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 by the embodiments of the present application. A person skilled in the art will appreciate that, with the evolution of the network architecture and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present application are equally applicable to similar technical problems.

[0045] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0046] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0047] In the embodiments of the present application, "predefined" can be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (for example, a terminal device and a network device). The present application does not limit the specific implementation method. For example, predefined can refer to information defined in a protocol.

[0048] First, the relevant terms mentioned in this embodiment are introduced.

[0049] 1. Multi-card terminal equipment

[0050] A multi-SIM terminal device means that there are multiple SIM cards in the terminal device, and the multiple SIM cards can belong to the same operator or different operators.

[0051] For multi-SIM terminal devices, users can configure multiple SIM cards according to their preferences. For example, as shown in Figure 1, a user can select SIM1 from operator A for receiving calls because operator A offers lower voice rates, while also selecting SIM2 from operator B for data services because operator B offers lower data rates. This allows a single terminal device to work with different operators simultaneously.

[0052] Furthermore, multi-card terminal devices can be classified according to whether these cards (SIM cards) can work simultaneously.

[0053] Taking dual-SIM terminal devices as an example, dual-SIM terminal devices can be divided into:

[0054] – Dual standby single communication: Both cards can work in standby receiving state at the same time, but only one card can work in connected state (transmitting / receiving state);

[0055] – Dual standby dual communication: two cards can work in standby receiving state and connected state (transmitting / receiving state) at the same time.

[0056] The network that each card of a multi-card terminal device works on can include 2G / 3G / 4G / 5G, etc., depending on the user's choice.

[0057] 2. Hardware sharing of multi-card terminal devices

[0058] The hardware implementation complexity and cost of multi-SIM terminals are generally higher than those of single-SIM terminals. This is especially true for multi-SIM multi-communication terminals, which require the terminal to support simultaneous transmission and reception of all SIM cards. In some cases, the terminal device needs to use double the hardware resources to support simultaneous transmission and reception of multi-SIM terminals. For example, Figure 2 shows a terminal device with a single SIM card (4 SIM cards) supporting downlink reception, while Figure 3 shows a terminal device with dual SIM cards (SIM1 and SIM2) supporting downlink reception. In comparison, a single-SIM terminal uses four downlink reception paths (including LNAs (low noise amplifiers) and antennas), while a dual-SIM terminal requires eight downlink reception paths, doubling its complexity and cost.

[0059] Therefore, to reduce hardware implementation complexity and costs, in some cases, multi-SIM terminal devices will reduce hardware resource investment by reducing the capabilities of some SIM cards when multiple SIM cards are operating simultaneously, thereby achieving a balance between dual-SIM dual-pass functionality and cost and complexity. As shown in Figure 4, SIM1 and SIM2 share six downlink receive channels, ensuring the downlink receive capability of one card (4 streams) while appropriately reducing the downlink receive capability of the other card (2 streams). This implementation reduces hardware complexity.

[0060] The problem with this implementation is that there's a difference between the receiving capabilities of a terminal device operating with a single SIM card and when multiple SIM cards are operating simultaneously. This difference is invisible to the network, meaning there's a discrepancy between the capabilities reported by the terminal device to the network (the communication capabilities of each SIM card operating as a single card) and the terminal device's actual communication capabilities (the communication capabilities of both SIM cards operating as a dual SIM card). This can potentially cause issues with the base station's scheduling of the terminal device. For example, when the base station schedules based on the terminal device's reported communication capabilities, the terminal device won't be able to receive and demodulate properly, resulting in a decrease in overall throughput performance.

[0061] Please refer to FIG5 , which shows a schematic diagram of a network architecture 100 provided by an embodiment of the present application. The network architecture 100 may include: a terminal device 10 , an access network device 20 , and a core network device 30 .

[0062] The terminal device 10 may refer to a user equipment (UE), an access terminal device, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a wireless communication device, a user agent, or a user device. Optionally, the terminal device 10 may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a fifth generation mobile communication system (5GS) or a terminal device in a future evolved public land mobile communication network (PLMN), etc., and the embodiments of the present application are not limited thereto. For ease of description, the devices mentioned above are collectively referred to as terminal devices. The number of terminal devices 10 is generally multiple, and one or more terminal devices 10 may be distributed in a cell managed by each access network device 20.

[0063] The access network device 20 is a device deployed in the access network to provide wireless communication functions for the terminal device 10. The access network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, etc. In systems using different wireless access technologies, the names of devices with access network device functions may be different. For example, in the 5G NR system, it is called gNodeB or gNB (next Generation Node B, next generation node B (or new generation access network node)). With the evolution of communication technology, the name "access network device" may change. For the convenience of description, in the embodiments of the present application, the above-mentioned devices that provide wireless communication functions for the terminal device 10 are collectively referred to as access network devices. Optionally, a communication relationship can be established between the terminal device 10 and the core network device 30 through the access network device 20. For example, in a Long Term Evolution (LTE) system, the access network device 20 may be an Evolved Universal Terrestrial Radio Access Network (EUTRAN) or one or more eNodeBs in the EUTRAN; in a 5G NR system, the access network device 20 may be a Radio Access Network (RAN) or one or more gNBs in the RAN.

[0064] The access network equipment in a 3G communication system is called a NodeB (NB). The access network equipment in a 4G communication system is called an eNodeB (evolved NodeB). In the Option 4 non-standalone (NSA) architecture, 4G access network equipment must be upgraded to support eLTE and connect to the 5G core network. This upgraded 4G access network equipment is called an ng-eNB. The access network equipment in a 5G communication system is called a gNB (generation NodeB). In the NAS Option 3 architecture, since 5G access network equipment needs to access the 4G core network, the 5G gNB must be modified to enable this connection. This modified gNB is called an en-gNB.

[0065] The core network device 30 is a device deployed in the core network. The function of the core network device 30 is mainly to provide user connection, user management, and service carrying, and to provide an interface to the external network as a bearer network. For example, the core network equipment in the 5G NR system may include an access and mobility management function (AMF) network element, an authentication server function (AUSF) network element, a user plane function (UPF) network element, a session management function (SMF) network element, a location management function (LMF) network element, a policy control function (PCF) network element, a unified data management (UDM) network element, etc.

[0066] In one example, the access network device 20 and the core network device 30 communicate with each other via an interface technology, such as the NG interface in the 5G NR system. The access network device 20 and the terminal device 10 communicate with each other via an air interface technology, such as the Uu interface.

[0067] Access network equipment is the device that connects terminal devices to the network architecture wirelessly. It is primarily responsible for radio resource management, Quality of Service (QoS) management, data compression and encryption, etc. on the air interface side. Examples include base stations (NodeBs), evolved base stations (eNodeBs), base stations in 5G mobile communication systems or next-generation wireless (NR) communication systems, and base stations in future mobile communication systems.

[0068] The "5G NR system" in the embodiments of the present application may also be referred to as a 5G system or an NR system, but those skilled in the art will understand its meaning. The technical solutions described in the embodiments of the present application may be applicable to LTE systems, 5G NR systems, subsequent evolution systems of 5G NR systems, and other communication systems such as Narrow Band Internet of Things (NB-IoT) systems, and this application does not limit this.

[0069] Please refer to Figure 6, which shows a flow chart of a method for reporting terminal capabilities provided by an embodiment of the present application, which can be applied to terminal devices. The method includes the following steps.

[0070] Step 210: Send terminal capability information of a first frequency band combination to a network device, where the first frequency band combination includes operating frequency bands when at least two subscriber identity cards operate simultaneously.

[0071] Optionally, the terminal device sends terminal capability information on at least one frequency band in the first frequency band combination; wherein the first frequency band combination includes: when at least two user identification cards of the terminal device work simultaneously, the working frequency bands in which at least two user identification cards work respectively.

[0072] The terminal device includes at least two user identification cards, or the terminal device corresponds to at least two user identification cards, or the terminal device is equipped with at least two user identification cards.

[0073] The terminal device supports at least two user identification cards working in a connected state at the same time, or the terminal device supports at least two user identification cards to communicate data with the network device at the same time, or the terminal device supports at least two user identification cards to be in a transmitting and / or receiving state at the same time, or the terminal device supports at least two user identification cards.

[0074] A subscriber identification card (SIM) is an integrated circuit card (IC) used to identify mobile users in mobile communication systems. It can be at least one of a SIM, a USIM (Universal Subscriber Identity Module), or an eSIM (embedded SIM). The at least two SIMs in a terminal device can be of the same or different types.

[0075] At least two subscriber identity cards can access the same network (network device). For example, a terminal device establishes a connection with a first network device through SIM1 and SIM2, and the terminal device can communicate with the first network device through SIM1 or SIM2.

[0076] Alternatively, at least two subscriber identity cards may be connected to different networks (network devices). For example, a terminal device may establish a connection with a first network device through SIM1 and may communicate with the first network device through SIM1; a terminal device may establish a connection with a second network device through SIM2 and may communicate with the second network device through SIM2.

[0077] Then, step 210 may be sent by the terminal device to the network device via at least one user identification card.

[0078] For example, the terminal device sends terminal capability information on at least one frequency band in the first frequency band combination to the first network device through the first user identification card. The at least one frequency band can be the frequency band in which the first user identification card works, or the frequency band in which other user identification cards on the terminal device work.

[0079] Exemplarily, the at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes: when the at least two user identification cards are operating simultaneously, a first frequency band in which the first user identification card operates, and a second frequency band in which the second user identification card operates; that is, the first frequency band combination includes a first frequency band and a second frequency band, the first frequency band being used to indicate the operating frequency band of the first user identification card, and the second frequency band being used to indicate the operating frequency band of the second user identification card. The terminal device sends first capability information on the first frequency band to the network device via the first user identification card; or, the terminal device sends first capability information on the first frequency band and second capability information on the second frequency band to the network device via the first user identification card.

[0080] Similarly, the terminal device can also send the second capability information on the second frequency band in the first frequency band combination to the network device through the second user identification card; or, send the first capability information on the first frequency band in the first frequency band combination and the second capability information on the second frequency band to the network device through the second user identification card.

[0081] Exemplarily, a subscriber identity card can simultaneously operate on at least one frequency band. That is, the first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band. When the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band; when the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

[0082] Alternatively, taking the example of a terminal device having two user identification cards, the terminal device sends terminal capability information on at least one frequency band in a first frequency band combination to a first network device via a first user identification card, and sends terminal capability information on at least one frequency band in the first frequency band combination to a second network device via a second user identification card. The first network device and the second network device can be the same network device or different network devices. The first user identification card is used to access the first network device, and the second user identification card is used to access the second network device.

[0083] In order to facilitate the terminal device to report the communication capabilities of multiple user identification cards when working simultaneously to the network device, the embodiment of the present application introduces the concept of "frequency band combination".

[0084] A frequency band combination defines the operating frequency bands corresponding to multiple SIM cards when they are operating simultaneously. In other words, the frequency bands in a frequency band combination are the operating frequency bands of multiple SIM cards in a terminal device when they are operating simultaneously.

[0085] When multiple subscriber identity cards are operating simultaneously, the multiple operating frequency bands corresponding to the multiple subscriber identity cards can form a frequency band combination. For example, if SIM1 and SIM2 of a terminal device are operating simultaneously, with SIM1 operating in Band A and SIM2 operating in Band B, Band A + Band B constitute a frequency band combination. Alternatively, if SIM1 and SIM2 of a terminal device are operating simultaneously, with SIM1 operating in Band A and Band C, and SIM2 operating in Band B, Band A + Band C + Band B constitute a frequency band combination.

[0086] That is, a frequency band combination includes at least two frequency bands corresponding to at least two subscriber identification cards, wherein in a frequency band combination, one subscriber identification card may correspond to at least one frequency band.

[0087] The above-mentioned frequency band combination may also be replaced by other names, for example, it may be called Multi-SIM Band Combination (MSBC), multi-SIM simultaneous operating frequency band, multi-SIM simultaneous operating frequency band combination, etc. That is, the first frequency band combination may also be called the first MSBC.

[0088] For example, frequency band combinations can be classified into a first category when all frequency bands in a first frequency band combination are identical; and a second category when some frequency bands in the first frequency band combination are different. That is, the first frequency band and the second frequency band can be identical, or different.

[0089] For example, the first frequency band combination includes frequency band A on which the first user identification card works and frequency band A on which the second user identification card works. Then the first frequency band combination is a first-category frequency band combination. When reporting the terminal capability information of the first frequency band combination, the type of the frequency band combination (first-category frequency band combination) and a frequency band (frequency band A) can be reported to indicate the frequency band combination.

[0090] For another example, the first frequency band combination includes frequency band A in which the first subscriber identification card operates and frequency band B in which the second subscriber identification card operates, and the first frequency band combination is a second type of frequency band combination.

[0091] For example, the band combination can be called MSBC. It is assumed that SIM1 and SIM2 work simultaneously, and SIM1 works in Band A and SIM2 works in Band B. When Band A and Band B are different frequency bands, they constitute an inter-band multi-SIM band combination (inter-Band MSBC A+B). When Band A and Band B are the same frequency band, they constitute an intra-band multi-SIM band combination (intra-Band MSBC A+B).

[0092] The terminal device may report the terminal capability information corresponding to a frequency band combination to the network device. The terminal device may also report the terminal capability information corresponding to multiple frequency band combinations to the network device simultaneously. That is, the first frequency band combination may include one frequency band combination or multiple frequency band combinations.

[0093] When reporting the terminal capability information of the frequency band in the frequency band combination, the terminal device may carry the first indication information, the second indication information and the terminal capability information. The first indication information is used to indicate the frequency band combination (for example, it may be the frequency band combination identifier, the frequency bands included in the frequency band combination, the frequency band combination name, etc.). The second indication information is used to indicate the frequency band in the frequency band combination (for example, it may be the frequency band identifier, the frequency band name, the frequency band value, etc.). The terminal capability information corresponds to the first indication information and the second indication information, indicating: the terminal capability information on the frequency band indicated by the second indication information in the frequency band combination indicated by the first indication information.

[0094] Alternatively, when reporting terminal capability information for a frequency band in a frequency band combination, the terminal device may carry third indication information and the terminal capability information, where the third indication information is used to indicate the frequency band combination and the frequency band in the frequency band combination. For example, the third indication information is MSBC(A+B, A), which may indicate frequency band A in a frequency band combination consisting of frequency bands A and B. The terminal capability information corresponds to the third indication information. When the first indication information is used to indicate the first frequency band in the first frequency band combination, the terminal capability information corresponding to the third indication information indicates: terminal capability information on the first frequency band in the first frequency band combination indicated by the third indication information.

[0095] When the terminal device reports the terminal capability information corresponding to a frequency band combination, it can report the terminal capability information corresponding to a frequency band in the frequency band combination to the network device; it can also report the terminal capability information corresponding to multiple frequency bands in a frequency band combination to the network device at the same time; it can also report the terminal capability information on at least one frequency band corresponding to the first user identification card in a frequency band combination to the first network device through the first user identification card; it can also report the total capability information of the terminal device working in the first frequency band combination to the network device.

[0096] That is, the terminal capability information of the first frequency band combination includes at least one of the following:

[0097] Terminal capability information corresponding to at least one frequency band in the first frequency band combination;

[0098] Terminal capability information corresponding to at least one first user identification card in the first frequency band combination;

[0099] Total capability information of the terminal device operating in the first frequency band combination (for example, total transmit power, total receive power, etc. of the terminal device).

[0100] In another optional implementation, step 210 may be replaced by: the terminal device sends terminal capability information on at least one frequency band in MSBC; wherein the MSBC includes: when at least two user identification cards of the terminal device work simultaneously, the working frequency bands in which at least two user identification cards work respectively.

[0101] In another optional implementation, step 210 can also be replaced by: the terminal device sends first capability information, the first capability information is the capability information corresponding to the first user identification card, the first capability information includes capability information in at least one working mode, and the working modes include: single-card working mode and multi-card working mode, wherein the multi-card working mode can also include the working frequency band when the first user identification card works in the multi-card working mode.

[0102] That is, the terminal device can report a set of terminal capability information for a user identification card, informing the network device of the capability information of the user identification card working in various working modes, including single-card working mode, multi-card working mode, or single-card working mode + frequency band, multi-card working mode + frequency band.

[0103] For example, the terminal device sends first capability information, where the first capability information includes capability information a corresponding to the first subscriber identity card in a single-card operating mode and capability information b corresponding to a multi-card operating mode. Alternatively, the terminal device sends first capability information, where the first capability information includes capability information a corresponding to the first frequency band of the first subscriber identity card in the single-card operating mode, capability information b corresponding to the second frequency band of the multi-card operating mode, and capability information c corresponding to the third frequency band of the multi-card operating mode. Alternatively, the terminal device sends first capability information, where the first capability information includes capability information b corresponding to the first subscriber identity card in a multi-card operating mode.

[0104] In another optional implementation, step 210 may also be replaced by: the terminal device sends second capability information, where the second capability information is capability information corresponding to the first frequency band, and the second capability information includes capability information corresponding to at least one operating mode when the first user identification card operates in the first frequency band. For example, the second capability information includes: capability information of the first user identification card operating in the first frequency band and in a single-card operating mode, and capability information of the first user identification card operating in the first frequency band and in a multi-card operating mode. For another example, the second capability information includes capability information of the first user identification card operating in the first frequency band and in a multi-card operating mode.

[0105] That is, the terminal device can report a set of terminal capability information for a frequency band, informing the network device of the capability information corresponding to each working mode when the first user identification card works in the frequency band, and the working modes include single-card working mode and multi-card working mode.

[0106] The single-card working mode is a terminal device working mode in which only one subscriber identity card is in a connected state, and the multi-card working mode is a terminal device working mode in which multiple subscriber identity cards are in a connected state at the same time.

[0107] Exemplarily, when the terminal device executes step 210 through the first user identification card, the terminal capability information may only include the capability information corresponding to the first user identification card. For example, the terminal capability information includes: capability information on at least one frequency band corresponding to the first user identification card in the first frequency band combination.

[0108] When the terminal device executes step 210 using the first subscriber identification card, the terminal device information may also include capability information corresponding to multiple subscriber identification cards, where the multiple subscriber identification cards include at least the first subscriber identification card. For example, the terminal device may send terminal capability information corresponding to the first frequency band combination, where the terminal capability information includes capability information corresponding to each frequency band in the first frequency band combination.

[0109] Exemplarily, the terminal capability information may be carried in an RRC (Radio Resource Control) message or a MAC CE (Media Access Control Control Element) message.

[0110] Exemplarily, the terminal device may report the terminal capability information in step 210 to the network device after initial access. That is, after initial access, the terminal device sends the terminal capability information of the first frequency band combination to the network device.

[0111] For example, after initial access, the terminal device can report all possible terminal capability information to the network device at one time. For example, the terminal device can report the terminal capability information in single-card working mode and the terminal capability information in multi-card working mode (including the terminal capability information corresponding to each multi-card working situation) to the network device at one time.

[0112] Alternatively, the terminal device may report the terminal capability information in step 210 in RRC terminal assistance information. That is, the terminal device sends the RRC terminal assistance information to the network device, where the RRC terminal assistance information includes the terminal capability information of the first frequency band combination.

[0113] For example, in the RRC terminal auxiliary information, the terminal device can report all possible terminal capability information to the network device at one time. For example, the terminal device can report the terminal capability information in the single-card working mode and the terminal capability information in the multi-card working mode (including the terminal capability information corresponding to each multi-card working condition) to the network device at one time.

[0114] For example, in the RRC terminal assistance information, the terminal device may also report only the terminal capability information of one multi-SIM working condition. For example, the terminal device is currently working in the first multi-SIM working condition, where SIM1 and SIM2 are working simultaneously, and SIM1 is working in Band A and SIM2 is working in Band B. The terminal device may report the terminal capability information on frequency band A in MSBC (A+B) to the network device in the RRC terminal assistance information.

[0115] Exemplarily, the terminal capability information may include at least one of the following: transmit power capability information; interference indication information; uplink and / or downlink MIMO (Multiple-In Multiple-Out) capability information; supported frequency band information; number of carriers; and peak rate.

[0116] In summary, the method provided in this embodiment enables a terminal device to report to a network device the capabilities of each SIM card operating on its operating frequency band when multiple SIM cards are operating simultaneously, thereby enabling the network device to obtain the terminal device's communication capabilities when multiple SIM cards are operating simultaneously. When multiple SIM cards in a terminal device are operating simultaneously, the network device can perform reasonable communication scheduling for each SIM card based on the capabilities information of each SIM card operating on its operating frequency band, thereby improving communication efficiency.

[0117] Please refer to Figure 7, which shows a flow chart of a method for reporting terminal capabilities provided by an embodiment of the present application, which can be applied in network devices. The method includes the following steps.

[0118] Step 310: receiving terminal capability information of a first frequency band combination sent by a terminal device, where the terminal device includes at least two subscriber identification cards, and the first frequency band combination includes operating frequency bands when the at least two subscriber identification cards operate simultaneously.

[0119] Exemplarily, the at least two subscriber identification cards include a first subscriber identification card, and the network device may be a network device to which the terminal device accesses via the first subscriber identification card.

[0120] After receiving the terminal capability information, the network device may also perform communication scheduling for the terminal device based on the terminal capability information and the current working mode of the terminal device.

[0121] Exemplarily, the at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes a first frequency band in which the first user identification card operates, and a second frequency band in which the second user identification card operates, when at least two user identification cards operate simultaneously; the network device receives first capability information on the first frequency band in the first frequency band combination sent by the terminal device through the first user identification card; or, receives first capability information on the first frequency band in the first frequency band combination and second capability information on the second frequency band sent by the terminal device through the first user identification card.

[0122] Exemplarily, the first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band; when the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band; when the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

[0123] Exemplarily, when the frequency bands in the first frequency band combination are the same frequency bands, the first frequency band combination is a first type of frequency band combination; when the frequency bands in the first frequency band combination are different frequency bands, the first frequency band combination is included as a second type of frequency band combination.

[0124] Exemplarily, the network device may receive terminal capability information of the terminal device on at least one frequency band in the first frequency band combination after the terminal device completes initial access; or, receive RRC terminal auxiliary information sent by the terminal device, the RRC terminal auxiliary information including terminal capability information on at least one frequency band in the first frequency band combination.

[0125] Exemplarily, the terminal capability information includes at least one of the following: transmit power capability information; interference indication information; uplink and / or downlink MIMO capability information; supported frequency band information; number of carriers; and peak rate.

[0126] In summary, the method provided in this embodiment enables a terminal device to report to a network device the capabilities of each SIM card operating on its operating frequency band when multiple SIM cards are operating simultaneously, thereby enabling the network device to obtain the terminal device's communication capabilities when multiple SIM cards are operating simultaneously. When multiple SIM cards in a terminal device are operating simultaneously, the network device can perform reasonable communication scheduling for each SIM card based on the capabilities information of each SIM card operating on its operating frequency band, thereby improving communication efficiency.

[0127] Exemplarily, the terminal device may also report the current working mode to the network device so that the network device can schedule the communication of the terminal device according to the current working mode of the terminal device and the terminal capability information of each frequency band under the working mode.

[0128] Please refer to Figure 8, which shows a flow chart of a method for reporting terminal capabilities provided by an embodiment of the present application, which can be applied to a terminal device. The method includes the following steps.

[0129] Step 410: Send working mode indication information, where the working mode indication information includes at least one of the following information: working mode, the currently working first frequency band combination, and the working frequency bands corresponding to the remaining subscriber identity cards in the currently working first frequency band combination.

[0130] The network device receives the working mode indication information sent by the terminal device.

[0131] The operating mode indication information is used to indicate the current operating mode of the terminal device. The operating mode indicates either multi-card operating mode or single-card operating mode. Single-card operating mode means that the terminal device has only one SIM card in a connected state (sending / receiving state). Multi-card operating mode means that the terminal device has multiple SIM cards in a connected state (sending / receiving state) simultaneously.

[0132] Exemplarily, the operating mode indication information can also be used to indicate the future operating mode of the terminal device. For example, the operating mode indication information may include time information, operating mode, frequency band combination, and the operating frequency bands corresponding to the remaining subscriber identity cards. The time information indicates the time when the terminal device operates in the operating mode. For example, the time information may include at least one of the following: the start time, end time, time window, window duration, and time period of the terminal device operating in the operating mode.

[0133] The working mode indication information may also include relevant information of the working mode.

[0134] For example, when the operating mode is a multi-card operating mode, the operating mode indication information may further include frequency band combination indication information (used to indicate the first frequency band combination currently operating). For example, the frequency band combination indication information may be MSBC (A+B), which is used to indicate that the frequency band combination currently operating on the terminal device is frequency band A and frequency band B.

[0135] For another example, when the operating mode is a multi-card operating mode, the operating mode indication information may also include the operating frequency bands corresponding to the remaining user identification cards. The remaining user identification cards are: the user identification cards other than the user identification card that sends the operating mode indication information among the at least two user identification cards. For example, SIM1 and SIM2 are working simultaneously, SIM1 operates in frequency band A, and SIM2 operates in frequency band B. When the terminal device sends the operating mode indication information through SIM1, the operating mode indication information may include: multi-card operating mode, frequency band B; or, the operating mode indication information may include: multi-card operating mode, MSBC (A+B), frequency band B. Frequency band B is the operating frequency band of SIM2 in the multi-card operating mode.

[0136] For example, the terminal device may report the working mode indication information to the network device in real time after the working mode changes. The terminal device may also report the working mode indication information to the network device in response to the working mode reporting indication of the network device.

[0137] Step 410 and step 210 may be implemented in combination:

[0138] In an optional implementation, the terminal capability information and the operating mode indication information may be carried in the same message for reporting.

[0139] For example, the terminal device sends terminal capability information on at least one frequency band in the first frequency band combination, as well as operating mode indication information. Alternatively, the terminal device sends an RRC message, where the RRC message includes terminal capability information on at least one frequency band in the first frequency band combination, as well as operating mode indication information. Alternatively, the terminal device sends a MAC CE message, where the MAC CE message includes terminal capability information on at least one frequency band in the first frequency band combination, as well as operating mode indication information.

[0140] In this case, the terminal capability information reported by the terminal device may correspond to the current operating mode of the terminal device. For example, if the terminal device operates in the first frequency band combination of the multi-SIM operating mode, the terminal device may report the terminal capability information of at least one frequency band in the first frequency band combination, as well as the operating mode indication information. The operating mode indication information includes: the multi-SIM operating mode and the first frequency band combination.

[0141] Of course, the terminal capability information reported by the terminal device may not be limited to the terminal capability information corresponding to the current working mode. For example, the terminal device may report the terminal capability information under all possible working conditions, as well as the working mode indication information corresponding to the working mode currently working in the terminal device.

[0142] In another optional implementation, the terminal capability information and the operating mode indication information may be reported in different messages. The order in which the terminal capability information and the operating mode indication information are reported is not limited.

[0143] For example, a terminal device may first report terminal capability information and then report operating mode indication information. The terminal device transmits terminal capability information on at least one frequency band in the first frequency band combination; the terminal device transmits operating mode indication information. The terminal capability information may be carried in an RRC message or a MAC CE message, and the operating mode indication information may be carried in an RRC message or a MAC CE message.

[0144] For another example, after initial access, the terminal device can send terminal capability information on at least one frequency band in the first frequency band combination to the network device. The first frequency band combination includes all frequency band combinations in which the terminal device may operate, that is, the terminal capability information includes terminal capability information corresponding to all possible operating conditions of the terminal device. The terminal device then reports working mode indication information of the current working mode to the network device in real time. The network device determines the current working mode and working frequency band of the terminal device based on the working mode indication information, and queries the terminal capability information of the terminal device in the working frequency band of the working mode based on the terminal capability information.

[0145] In summary, the method provided in this embodiment allows the terminal device to report operating mode indication information to the network device to inform it of its current operating mode. This facilitates the network device to determine the terminal device's current communication capabilities based on the operating mode indication information, thereby enabling the network device to perform reasonable communication scheduling for the terminal device and improve communication efficiency.

[0146] Exemplarily, the terminal capability information may include transmit power capability information.

[0147] Please refer to FIG9 , which shows a flow chart of a method for reporting terminal capabilities according to an embodiment of the present application, which can be applied to a terminal device. Based on the embodiment shown in FIG6 , step 210 may include step 211 .

[0148] Step 211: Send terminal capability information of the first frequency band combination to the network device, where the terminal capability information includes transmit power capability information.

[0149] The network device receives terminal capability information on at least one frequency band in the first frequency band combination, the terminal capability information including transmit power capability information. Exemplarily, the network device performs transmit power control and / or mobility management of the terminal device according to the transmit power capability information.

[0150] Exemplarily, the terminal capability information includes at least one of the following transmit power capability information:

[0151] 1) when at least two subscriber identification cards are operating simultaneously, transmit power capability information corresponding to an operating frequency band of at least one of the at least two subscriber identification cards; that is, transmit power capability information corresponding to at least one frequency band in the first frequency band combination;

[0152] 2) When at least two subscriber identity cards are working simultaneously, the total transmission power capability information of the terminal device, that is, the total transmission power capability information of the terminal device.

[0153] That is, the terminal device can report the transmission power corresponding to each working frequency band of each SIM in the multi-card working mode, and / or the transmission power corresponding to each SIM, and / or the total transmission power of the terminal device in the multi-card working mode.

[0154] For example, if SIM1 and SIM2 are working at the same time, SIM1 works in frequency bands A and C, and SIM2 works in frequency band B, the terminal device can report at least one of the following terminal capability information to the network device:

[0155] The first transmit power of SIM1 on frequency band A;

[0156] The second transmit power of SIM1 on frequency band C;

[0157] The third transmit power of SIM2 on frequency band B;

[0158] The total transmit power of SIM1 (not greater than the sum of the first transmit power and the second transmit power);

[0159] Total transmit power of SIM2 (not greater than the third transmit power);

[0160] The total transmit power of MSBC (A+C+B) (not greater than the sum of the first transmit power, the second transmit power, and the third transmit power) can also be called the total transmit power of the terminal device.

[0161] The transmit power capability information may include the maximum transmit power. This transmit power capability information can be used to specify the maximum transmit power of each subscriber identity card on each frequency band when multiple subscriber identity cards are operating simultaneously. Alternatively, this transmit power capability information can be used to specify the maximum transmit power of each subscriber identity card when multiple subscriber identity cards are operating simultaneously. This transmit power capability information can be used to specify the maximum transmit power of a terminal device when multiple subscriber identity cards are operating simultaneously.

[0162] The network device can schedule communications for each frequency band of each user identification card based on the transmission power capability information.

[0163] Alternatively, the network device can dynamically allocate power to multiple SIM cards without exceeding the total transmit power of the terminal. Alternatively, the total transmit power can be used to limit the terminal device from causing human radiation safety issues due to excessive total transmit power.

[0164] For example, the transmit power may be indicated by a power class (PC) or a specific value.

[0165] In summary, the method provided in this embodiment allows the terminal device to report the transmission power capability information of the terminal device in the multi-card working mode to the network device, so that the network device can perform communication scheduling based on the transmission power of the terminal device in the multi-card working mode. The terminal device can report the multi-card transmission power limit of the terminal device to the base station by reporting the single-card transmission power, total maximum transmission power and other information corresponding to the MSBC in the multi-card concurrent scenario. After receiving the above information, the base station can perform transmission power control and mobility management (such as the determination of the switching threshold, etc.) according to the transmission power corresponding to each user identification card in the multi-card simultaneous working scenario, instead of following the power level limit under the single card, thereby improving the rationality of the network device in communication scheduling and improving communication efficiency.

[0166] Exemplarily, the terminal capability information may include interference indication information.

[0167] Please refer to FIG10 , which shows a flow chart of a method for reporting terminal capabilities according to an embodiment of the present application, which can be applied to a terminal device. Based on the embodiment shown in FIG6 , step 210 may include step 212 .

[0168] Step 212: Send terminal capability information of the first frequency band combination to the network device, where the terminal capability information includes interference indication information.

[0169] The network device receives terminal capability information on at least one frequency band in the first frequency band combination, where the terminal capability information includes interference indication information.

[0170] When a terminal device operates in multi-SIM mode, the frequency bands of the subscriber identity cards may interfere with each other. For example, if SIM1 operates in frequency band A and SIM2 operates in frequency band B, and the second harmonic of frequency band A falls within frequency band B, the signal transmitted by SIM1 in frequency band A will interfere with the signal received by SIM2 in frequency band B. Therefore, to reduce mutual interference in multi-SIM mode, the terminal device can report interference indication information to the network device. The network device then uses this interference indication information to schedule communication resources for the frequency bands of each SIM card in the terminal device, minimizing mutual interference.

[0171] Exemplarily, the terminal capability information includes at least one of the following interference indication information: an interference scenario, interference intensity, and an operating frequency band corresponding to each user identification card in the first frequency band combination when at least two user identification cards are operating simultaneously. Exemplarily, the terminal capability information includes at least one of the following interference indication information: an interference scenario, interference intensity, and an operating frequency band corresponding to each user identification card in the first frequency band combination.

[0172] The interference scenario includes at least one of the following information: interference source frequency band, interfered frequency band, and interference type.

[0173] When SIM1's frequency band A interferes with SIM2's frequency band B, the interference source frequency band in the interference indication information reported by SIM2 is frequency band A, and the interfered frequency band is frequency band B; or, the interference source frequency band in the interference indication information reported by SIM2 is frequency band A, and the interfered frequency band is the interfered frequency interval in frequency band B.

[0174] The interference type includes at least one of harmonic interference, intermodulation interference, out-of-band leakage interference, and harmonic mixing interference.

[0175] For example, SIM1 and SIM2 are both connected, and the current frequency band combination is: SIM1's frequency band A and SIM2's frequency band B. The second harmonic of SIM1's frequency band A interferes with SIM2's frequency band B. The terminal device can report the following interference indication information to the network device:

[0176] Band combination: MSBC (A+B);

[0177] SIM1 operating frequency band: Band A;

[0178] SIM2 operating frequency band: Band B;

[0179] Interference type: harmonic interference (or second harmonic);

[0180] Interfered frequency band: Band B;

[0181] Interference frequency band (interference source frequency band): frequency band A;

[0182] Interference intensity;

[0183] Maximum sensitivity drawback (MSD);

[0184] The receiving sensitivity of the interfered frequency band.

[0185] The interference intensity may be the signal intensity of the interference signal falling within the interfered frequency band.

[0186] Maximum sensitivity fallback is used to indicate the decrease in receive sensitivity on the interfered frequency band due to interference. Maximum sensitivity fallback is the difference between the maximum receive sensitivity when the interfered frequency band is not interfered with and the maximum receive sensitivity after the interfered frequency band is interfered with.

[0187] The receiving sensitivity of the interfered frequency band is the receiving sensitivity of the interfered frequency band after being interfered with.

[0188] Exemplarily, the interference source frequency band and the interfered frequency band may be frequency bands in the first frequency band combination.

[0189] For example, this embodiment further provides the following four interference resolution methods:

[0190] Method (1) Adjust the transmit / receive frequency to avoid the interfered frequency.

[0191] The network device sends a first indication message to the terminal device; the first indication message is used to adjust the transmitting frequency and / or receiving frequency of at least one user identification card among at least two user identification cards in the working frequency band; the first indication message is determined by the network device according to the interference indication message.

[0192] The terminal device receives the first indication information sent by the network device.

[0193] Exemplarily, the first indication information is used to adjust the transmission frequency of the interference source frequency band, and / or the first indication information is used to adjust the receiving power of the interfered frequency band.

[0194] For example, as shown in Figure 11, SIM1 and SIM2 are simultaneously operating in a connected state. The current frequency band combination is: SIM1's frequency band A and SIM2's frequency band B. The second harmonic of SIM1's frequency band A interferes with SIM2's frequency band B. Specifically, the second harmonic of the first frequency interval 501 of frequency band A falls within the second frequency interval 502 of frequency band B. Therefore, the first indication information can be used to indicate that SIM1's transmit frequency is: the frequency interval of frequency band A excluding the first frequency interval 501 (the white portion of frequency band A in the figure). And / or, the first indication information can be used to indicate that SIM2's receive frequency is: the frequency interval of frequency band B excluding the second frequency interval 502 (the white portion of frequency band B in the figure).

[0195] Method (2) reduces the transmission power of the interference source frequency band to reduce the interference intensity.

[0196] For example, if SIM1 and SIM2 are operating in a connected state, and the current frequency band combination is: SIM1's frequency band A and SIM2's frequency band B, the second harmonic of SIM1's frequency band A interferes with SIM2's frequency band B. You can reduce the interference strength of the signal transmitted by frequency band A on frequency band B by reducing the transmit power of frequency band A.

[0197] a. The terminal device can spontaneously reduce the transmission power of the frequency band where the interference comes from.

[0198] That is, the terminal device reduces the transmission power of the interference source frequency band according to the interference indication information.

[0199] b. The terminal device can reduce the transmission power of the interference source frequency band according to the instructions of the network device.

[0200] That is, the network device sends second indication information to the terminal device; the second indication information is used to reduce the transmission frequency of the interference source frequency band; the second indication information is determined by the network device according to the interference indication information.

[0201] The terminal device receives the second indication information sent by the network device, and reduces the transmission power of the interference source frequency band according to the second indication information.

[0202] Method (3) uses time division multiplexing to transmit and receive on the interfered frequency band to avoid interference.

[0203] The network device sends a transmission resource configuration to the terminal device; the transmission resource configuration is used to configure the transmission resources of at least one user identification card among at least two user identification cards; the transmission resource configuration is obtained by the network device according to the interference indication information using TDM (Time-Division Multiplexing) mode.

[0204] The terminal device receives the transmission resource configuration and controls the data transmission of the plurality of user identification cards according to the transmission resource configuration.

[0205] Exemplarily, in the transmission resource configuration, the uplink transmission resources used by the interference source frequency band and the downlink transmission resources used by the interfered frequency band have different time domain resources. For example, the uplink transmission resources used by the interference source frequency band are in a first time interval, and the downlink transmission resources used by the interfered frequency band are in a second time interval, and the first time interval and the second time interval do not overlap.

[0206] For example, if SIM1 and SIM2 are both connected, and the current frequency band combination is: SIM1's frequency band A and SIM2's frequency band B, and the second harmonic of SIM1's frequency band A interferes with SIM2's frequency band B, the network device can allocate a first time domain resource to frequency band A for uplink transmission and a second time domain resource to frequency band B for downlink reception. The first and second time domain resources do not overlap in time.

[0207] In summary, the method provided in this embodiment enables a terminal device to report interference indication information when the terminal device is in multi-SIM mode to a network device. The interference indication information includes information about the mutual interference between the frequency bands in the frequency band combination in the multi-SIM mode. The network device can perform communication scheduling for the terminal device based on the interference indication information, reducing the mutual interference between the frequency bands within the terminal device by adjusting the transmit and receive frequencies, reducing the transmit power, and implementing time division multiplexing, thereby improving communication efficiency.

[0208] Figure 12 is a schematic diagram of a dual-SIM dual-connection terminal device, in which SIM1 communicates with Network 1, and SIM2 communicates with Network 2. For example, different SIMs represent different terminal devices from the network's perspective, so the network handles SIM1 and SIM2 based on the different terminal devices, that is, according to the communication capabilities reported by SIM1 and SIM2.

[0209] However, in real-world applications, when SIM1 and SIM2 belong to the same terminal device and need to share certain communication resources (such as hardware), their actual communication capabilities will differ from the capabilities reported by each SIM individually, making it impossible for the base station to correctly schedule the terminal device. It's also important to note that the interaction between multiple SIMs depends on the operating frequency bands of each SIM. Some frequency bands interact, while others do not. The following introduces the concept of "Multi-SIM Band Combination" (MSBC) to explain how capability information is coordinated between multiple SIMs.

[0210] Example 1: Capability Information Interaction Based on Multi-SIM Band Combination

[0211] As shown in Figure 13, a multi-SIM band combination means that SIM1 and SIM2 operate simultaneously, with SIM1 operating in Band A and SIM2 operating in Band B. Band A + Band B constitute a multi-SIM band combination (MSBC A+B). When Band A and Band B are in different frequency bands, they form an inter-Band MSBC A+B. When Band A and Band B are in the same frequency band, they form an intra-Band MSBC A+B.

[0212] Note: Each SIM card can also operate in a frequency band combination consisting of multiple frequency bands. For example, SIM1 operates in frequency band K + frequency band L, SIM2 operates in frequency band M + frequency band N, etc. To simplify the discussion, it is assumed here that each SIM card operates in only one frequency band.

[0213] For MSBC consisting of two frequency bands A+B that affect each other, when the two frequency bands are in operation at the same time, the two frequency bands will not be able to transmit or receive completely according to the capabilities of a single frequency band. The current terminal device's transceiver capabilities are reported based on each SIM card working alone. For example, SIM1 will report the transceiver capabilities of Band A to Network 1, and SIM2 will report the transceiver capabilities of Band B to Network 2. This mechanism cannot reflect the actual transceiver capabilities when Band A+B are working at the same time. Therefore, based on the MSBC introduced above, the communication capabilities of MSBC A+B when working at the same time can be reported to Network 1 and / or Network 2, so that the base station can know its actual communication capabilities when the terminal device is in multi-card operation and perform accurate scheduling. The reporting method can be:

[0214] 1) The communication capabilities of the MSBC A+B can be reported to the base station corresponding to the SIM card at the time of initial access. Different communication capability information is used when the terminal device works with a single SIM card or dual SIM cards.

[0215] 2) The reporting of the communication capability corresponding to the MSBC A+B may also be performed by reporting RRC terminal auxiliary information (UE assistant information).

[0216] For a multi-SIM terminal device, it can work in single-SIM mode (single-SIM working mode) or multi-SIM mode (multi-SIM working mode). Whether the terminal device is working in multi-SIM mode at a certain moment needs to indicate to the network. That is, when the terminal device is working in multi-SIM mode, it needs to report at least one of the following information to the base station corresponding to SIM1 and / or SIM2:

[0217] Currently in multi-card working mode;

[0218] The working frequency band corresponding to the other SIM card;

[0219] Multi-card frequency band combination MSBC.

[0220] The following will use uplink transmit power control and interference coordination as two examples to introduce the reporting and use of MSBC communication capabilities.

[0221] Example 1: Uplink transmit power control based on MSBC.

[0222] As shown in Figure 14, when SIM1 and SIM2 operate independently on Band A and Band B, respectively, their corresponding transmit power levels are PC2 (power class). For example, SIM1 on Band A uses PA1 and PA2 to achieve PC2, while SIM2 on Band B uses PA2 and PA3. However, when Band A and Band B operate simultaneously, one band may not reach PC2, resulting in a discrepancy between the actual communication capability and that of a single band. The transmit power level of a terminal device directly affects uplink coverage, power control, and mobility, and is therefore of great significance to base stations. This issue can be addressed by introducing a transmit power capability definition based on MSBC.

[0223] The transmit power capability based on the MSBC may include one or more of the following power information:

[0224] (1) Transmit power capability information for each SIM card corresponding to the frequency band (or frequency band combination);

[0225] The transmit power capability information is used to clarify the maximum transmit power capability of each SIM card when multiple SIM cards work simultaneously.

[0226] This information can be used for scheduling the frequency band corresponding to each SIM card's network when multiple cards are working simultaneously.

[0227] (2) Total transmit power capability of MSBC A+B

[0228] The total transmit power capability may indicate the total transmit power capability of the terminal device when multiple SIM cards are used concurrently.

[0229] This information has practical value in a variety of scenarios. For example, the base station can dynamically allocate power between two SIM cards without exceeding the total transmit power, and limit the terminal device from causing human radiation safety issues due to excessive total transmit power.

[0230] Taking FIG14 as an example, in a multi-SIM working scenario (i.e., the SIM1+2 dual-SIM working diagram in FIG14 ), the power level definition based on MSBC is shown in Table 1.

[0231] Table 1

[0232] In this example, the terminal device can report the multi-SIM transmit power limit of the terminal device to the base station by reporting information such as the single-SIM transmit power and total maximum transmit power in the multi-SIM concurrent scenario corresponding to the MSBC. After receiving this information, the base station can perform transmit power control and mobility management (such as handover threshold determination) in the multi-SIM concurrent operation scenario based on Band A as PC3 and Band B as PC2, rather than following the power level limits of Band A and Band B for a single SIM.

[0233] Example 2: Interference coordination based on MSBC.

[0234] Compared to single-SIM operation, simultaneous operation of multiple SIM cards may result in interference. As shown in Figure 15, when the harmonics of Band A's transmit signal fall within Band B's receive frequency range, Band B's receive signal will be interfered with. This degrades Band B's reception capability and may even cause downlink reception interruption on Band B. Currently, there is no solution to the mutual interference issue in simultaneous operation of multiple SIM cards. This article uses MSBC to explain how to resolve this multi-SIM interference issue.

[0235] Mutual interference between MSBC A+B can occur in various scenarios, including harmonic interference, intermodulation interference, out-of-band leakage interference, and harmonic mixing interference. Each interference scenario has specific conditions. For example, harmonic interference typically occurs when multiples of the transmit frequency band fall within the receive frequency band, degrading the signal-to-noise ratio (SNR) of the received signal and reducing reception quality. Therefore, typical interference solutions address these interference conditions.

[0236] 1. Interference indication:

[0237] The base station connected to SIM2 may not be aware of the current interference coming from SIM1. Therefore, MSBC is required to report information such as the interference scenario (e.g., source frequency band, interfered frequency band, interference type, interference intensity) and other information when multiple SIM cards are operating simultaneously to the base station corresponding to SIM1 and / or SIM2. Furthermore, the base station is informed of the operating frequency bands corresponding to both SIM cards to determine potential interference.

[0238] For example, the information shown in Table 2 is reported to the base station.

[0239] Table 2

[0240] 2. Interference resolution:

[0241] In the MSBC A+B example above, the second harmonic of Band A's transmit signal falls into Band B's receive frequency band, degrading the receiver performance of Band B. To address this interference, several approaches can be taken, such as:

[0242] (1) Adjust the transmit frequency of SIM1 on Band A and / or the receive frequency of SIM2 on Band B so that the harmonics of the transmit frequency of SIM1 on Band A do not fall into the receive frequency of SIM2 on Band B.

[0243] As shown in Figure 11, the shaded area of ​​Band B represents the interference frequency range caused by SIM1's actual transmission frequency (the shaded area) on Band A. When SIM2 operates in the white area of ​​Band B, it can avoid interference from SIM1.

[0244] (2) Reduce the transmission power of SIM1 to reduce the interference to SIM2.

[0245] (3) TDM (time division multiplexing) is used for SIM1 and SIM2. When SIM1 transmits, SIM2 does not receive to avoid interference.

[0246] By providing interference indications corresponding to the MSBC when multiple SIMs are working simultaneously, the base station is assisted in avoiding interference.

[0247] It should be noted that the method steps in the above embodiments can be arbitrarily combined to obtain new embodiments, and this application does not impose any restrictions on this.

[0248] FIG16 shows a structural block diagram of a terminal capability reporting apparatus provided by an exemplary embodiment of the present application. The apparatus can be implemented as a terminal device, or as a part of a terminal device. The apparatus includes at least two user identification cards. The apparatus includes:

[0249] The first sending module 801 is configured to send terminal capability information of a first frequency band combination to a network device, where the first frequency band combination includes operating frequency bands when the at least two subscriber identification cards operate simultaneously.

[0250] In an optional embodiment, the at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes a first frequency band and a second frequency band, the first frequency band is used to indicate an operating frequency band of the first user identification card, and the second frequency band is used to indicate an operating frequency band of the second user identification card;

[0251] The first sending module 801 is configured to send first capability information on the first frequency band to a network device via the first subscriber identity card;

[0252] Alternatively, the first capability information on the first frequency band and the second capability information on the second frequency band are sent to a network device through the first subscriber identification card.

[0253] In an optional embodiment, the first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band;

[0254] In a case where the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band;

[0255] In a case where the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

[0256] In an optional embodiment, the first frequency band and the second frequency band are the same frequency band, or the first frequency band and the second frequency band are different frequency bands.

[0257] In an optional embodiment, the first sending module 801 is configured to send the terminal capability information of the first frequency band combination to the network device after initial access;

[0258] Or, sending radio resource control RRC terminal assistance information to the network device, where the RRC terminal assistance information includes the terminal capability information of the first frequency band combination.

[0259] In an optional embodiment, the first sending module 801 is configured to send working mode indication information, where the working mode indication information includes at least one of the following information: working mode, the first frequency band combination currently working, and working frequency bands corresponding to other user identification cards in the first frequency band combination currently working;

[0260] The working mode is used to indicate: one of a multi-card working mode and a single-card working mode; the remaining user identification cards are: user identification cards among the at least two user identification cards except the user identification card that sends the working mode indication information.

[0261] In an optional embodiment, the terminal capability information includes at least one of the following: transmit power capability information; interference indication information; uplink and / or downlink multiple-input multiple-output (MIMO) capability information; supported frequency band information; number of carriers; and peak rate.

[0262] In an optional embodiment, the terminal capability information includes at least one of the following transmit power capability information:

[0263] transmit power capability information corresponding to at least one frequency band in the first frequency band combination;

[0264] The total transmission power capability information of the terminal device.

[0265] In an optional embodiment, the terminal capability information includes at least one of the following interference indication information: interference scenario, interference intensity, and a working frequency band corresponding to each user identification card in the first frequency band combination;

[0266] The interference scenario includes at least one of the following information: interference source frequency band, interfered frequency band, and interference type.

[0267] In an optional embodiment, the device further comprises:

[0268] The first receiving module 803 is used to receive first indication information sent by the network device; the first indication information is used to adjust the transmission frequency and / or receiving frequency of at least one user identification card of the at least two user identification cards in the working frequency band; the first indication information is determined by the network device based on the interference indication information.

[0269] In an optional embodiment, the device further comprises:

[0270] The first processing module 802 is configured to reduce the transmit power of the interference source frequency band according to the interference indication information.

[0271] In an optional embodiment, the device further comprises:

[0272] The first receiving module 803 is used to receive second indication information sent by the network device; the second indication information is used to reduce the transmission frequency of the interference source frequency band; the second indication information is determined by the network device according to the interference indication information.

[0273] In an optional embodiment, the device further comprises:

[0274] The first receiving module 803 is used to receive the transmission resource configuration sent by the network device; the transmission resource configuration is used to configure the transmission resources of at least one user identification card among the at least two user identification cards; the transmission resource configuration is obtained by the network device according to the interference indication information using time division multiplexing TDM.

[0275] FIG17 shows a structural block diagram of a terminal capability reporting apparatus provided by an exemplary embodiment of the present application. The apparatus may be implemented as a network device, or as a part of a network device. The apparatus includes:

[0276] The second receiving module 804 is configured to receive terminal capability information of a first frequency band combination sent by a terminal device, where the terminal device includes at least two subscriber identification cards, and the first frequency band combination includes operating frequency bands when the at least two subscriber identification cards operate simultaneously.

[0277] In an optional embodiment, the at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes a first frequency band and a second frequency band, the first frequency band is used to indicate an operating frequency band of the first user identification card, and the second frequency band is used to indicate an operating frequency band of the second user identification card;

[0278] The second receiving module 804 is configured to receive the first capability information on the first frequency band sent by the terminal device via the first user identification card;

[0279] Or, receiving the first capability information on the first frequency band and the second capability information on the second frequency band sent by the terminal device through the first user identification card.

[0280] In an optional embodiment, the first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band;

[0281] In a case where the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band;

[0282] In a case where the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

[0283] In an optional embodiment, the first frequency band and the second frequency band are the same frequency band, or the first frequency band and the second frequency band are different frequency bands.

[0284] In an optional embodiment, the second receiving module 804 is configured to receive terminal capability information of the first frequency band combination sent by the terminal device after initial access;

[0285] Or, receiving unlimited resource control RRC terminal assistance information sent by the terminal device, where the RRC terminal assistance information includes the terminal capability information of the first frequency band combination.

[0286] In an optional embodiment, the second receiving module 804 is configured to receive operating mode indication information sent by the terminal device, where the operating mode indication information includes at least one of the following information: an operating mode, the first frequency band combination currently working, and operating frequency bands corresponding to remaining user identification cards in the first frequency band combination currently working;

[0287] The working mode is used to indicate: one of a multi-card working mode and a single-card working mode; the remaining user identification cards are: user identification cards among the at least two user identification cards except the user identification card that sends the working mode indication information.

[0288] In an optional embodiment, the terminal capability information includes at least one of the following: transmit power capability information; interference indication information; uplink and / or downlink multiple-input multiple-output (MIMO) capability information; supported frequency band information; number of carriers; and peak rate. In an optional embodiment, the terminal capability information includes at least one of the following:

[0289] transmit power capability information corresponding to at least one frequency band in the first frequency band combination;

[0290] The total transmission power capability information of the terminal device.

[0291] In an optional embodiment, the device further comprises:

[0292] The second processing module 805 is configured to perform transmit power control and / or mobility management of the terminal device according to the transmit power capability information.

[0293] In an optional embodiment, the terminal capability information includes at least one of the following interference indication information: interference scenario, interference intensity, and a working frequency band corresponding to each user identification card in the first frequency band combination;

[0294] The interference scenario includes at least one of the following information: interference source frequency band, interfered frequency band, and interference type.

[0295] In an optional embodiment, the device further comprises:

[0296] The second sending module 806 is used to send a first indication information to the terminal device; the first indication information is used to adjust the transmission frequency and / or receiving frequency of at least one user identification card among the at least two user identification cards in the working frequency band; the first indication information is determined by the network device based on the interference indication information.

[0297] In an optional embodiment, the device further comprises:

[0298] The second sending module 806 is used to send second indication information to the terminal device; the second indication information is used to adjust the transmission frequency of at least one user identification card of the at least two user identification cards; the second indication information is determined by the network device according to the interference indication information.

[0299] In an optional embodiment, the device further comprises:

[0300] The second sending module 806 is used to send a transmission resource configuration to the terminal device; the transmission resource configuration is used to configure the transmission resources of at least one user identification card among the at least two user identification cards; the transmission resource configuration is obtained by the network device according to the interference indication information using time division multiplexing TDM.

[0301] FIG18 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 101 , a receiver 102 , a transmitter 103 , a memory 104 and a bus 105 .

[0302] The processor 101 includes one or more processing cores. The processor 101 executes various functional applications and information processing by running software programs and modules.

[0303] The receiver 102 and the transmitter 103 may be implemented as a communication component, which may be a communication chip, and may be referred to as a transceiver.

[0304] The memory 104 is connected to the processor 101 via a bus 105 .

[0305] The memory 104 may be used to store at least one instruction, and the processor 101 may be used to execute the at least one instruction to implement each step in the above method embodiment.

[0306] In addition, the memory 104 can be implemented by any type of volatile or non-volatile storage device or a combination thereof. Volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), static random access memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, and programmable read-only memory (PROM).

[0307] Among them, when the communication device is implemented as a terminal device, the processor and transceiver in the communication device involved in the embodiments of the present application can execute the steps performed by the terminal device in any of the methods shown above, which will not be repeated here.

[0308] In a possible implementation, when the communication device is implemented as a terminal device,

[0309] The transceiver is configured to send terminal capability information of a first frequency band combination to a network device, wherein the first frequency band combination includes operating frequency bands when at least two user identification cards operate simultaneously, and the terminal device includes the at least two user identification cards. In another possible implementation, when the communication device is implemented as a network device,

[0310] The transceiver is used to receive terminal capability information of a first frequency band combination sent by a terminal device, the terminal device includes at least two user identification cards, and the first frequency band combination includes working frequency bands when the at least two user identification cards work simultaneously.

[0311] In an exemplary embodiment, a computer-readable storage medium is also provided, in which at least one instruction, at least one program, code set or instruction set is stored. The at least one instruction, the at least one program, the code set or instruction set is loaded and executed by a processor to implement the terminal capability reporting method performed by the communication device provided in the above-mentioned various method embodiments.

[0312] In an exemplary embodiment, a chip is also provided, which includes a programmable logic circuit and / or program instructions. When the chip runs on a communication device, it is used to enable the communication device to implement the terminal capability reporting method described in the above aspects.

[0313] In an exemplary embodiment, a computer program product is further provided. When the computer program product is executed on a processor of a communication device, the communication device executes the terminal capability reporting method described in the above aspects.

[0314] 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 may be accomplished 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.

[0315] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A terminal capability reporting method, characterized in that: The method is performed by a terminal device, the terminal device includes at least two user identification cards, and the method includes: The terminal capability information of the first frequency band combination is sent to the network device, where the first frequency band combination includes the working frequency bands when the at least two subscriber identification cards work simultaneously.

2. The method according to claim 1, characterized in that The at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes a first frequency band and a second frequency band, the first frequency band is used to indicate the working frequency band of the first user identification card, and the second frequency band is used to indicate the working frequency band of the second user identification card; The sending the terminal capability information of the first frequency band combination to the network device includes: sending, via the first user identification card, first capability information on the first frequency band to the network device; Or, the first capability information on the first frequency band and the second capability information on the second frequency band are sent to the network device through the first user identification card.

3. The method according to claim 2, characterized in that The first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band; In a case where the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band; In the case that the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

4. The method according to claim 2, characterized in that: The first frequency band and the second frequency band are the same frequency band, or the first frequency band and the second frequency band are different frequency bands.

5. The method according to any one of claims 1 to 4, characterized in that: The sending the terminal capability information of the first frequency band combination to the network device includes: After initial access, sending the terminal capability information of the first frequency band combination to the network device; Or, sending radio resource control RRC terminal assistance information to a network device, wherein the RRC terminal assistance information includes the terminal capability information of the first frequency band combination.

6. The method according to any one of claims 1 to 5, characterized in that: The method further comprises: Sending working mode indication information, wherein the working mode indication information includes at least one of the following information: working mode, the first frequency band combination currently working, and working frequency bands corresponding to other user identification cards in the first frequency band combination currently working; The working mode is used to indicate: one of a multi-card working mode and a single-card working mode; the remaining user identification cards are: the user identification cards among the at least two user identification cards except the user identification card that sends the working mode indication information.

7. The method according to any one of claims 1 to 6, characterized in that: The terminal capability information includes at least one of the following: Transmit power capability information; Interference indication information; Uplink and / or downlink MIMO capability information; Supported frequency band information; Number of carriers; Peak rate.

8. The method according to any one of claims 1 to 7, characterized in that: The terminal capability information includes at least one of the following transmission power capability information: Transmit power capability information corresponding to at least one frequency band in the first frequency band combination; The total transmission power capability information of the terminal device.

9. The method according to any one of claims 1 to 8, characterized in that: The terminal capability information includes at least one of the following interference indication information: interference scenario, interference intensity, and a working frequency band corresponding to each user identification card in the first frequency band combination; The interference scenario includes at least one of the following information: interference source frequency band, interfered frequency band, and interference type.

10. The method according to claim 9, characterized in that The method further comprises: Receive first indication information sent by a network device; the first indication information is used to adjust the transmission frequency and / or receiving frequency of at least one user identification card of the at least two user identification cards in the working frequency band; the first indication information is determined by the network device according to the interference indication information.

11. The method according to claim 9, characterized in that The method further comprises: According to the interference indication information, the transmission power of the interference source frequency band is reduced.

12. The method according to claim 9, characterized in that The method further comprises: Receive second indication information sent by the network device; the second indication information is used to reduce the transmission frequency of the interference source frequency band; the second indication information is determined by the network device according to the interference indication information.

13. The method according to claim 9, characterized in that The method further comprises: Receive the transmission resource configuration sent by the network device; the transmission resource configuration is used to configure the transmission resources of at least one user identification card among the at least two user identification cards; the transmission resource configuration is configured by the network device according to the interference indication information using time division multiplexing TDM.

14. A method for reporting terminal capabilities, characterized in that: The method is performed by a network device, and the method includes: Terminal capability information of a first frequency band combination sent by a terminal device is received, where the terminal device includes at least two user identification cards, and the first frequency band combination includes working frequency bands when the at least two user identification cards work simultaneously.

15. The method according to claim 14, characterized in that The at least two user identification cards include a first user identification card and a second user identification card; the first frequency band combination includes a first frequency band and a second frequency band, the first frequency band is used to indicate the working frequency band of the first user identification card, and the second frequency band is used to indicate the working frequency band of the second user identification card; The receiving terminal capability information of the first frequency band combination sent by the terminal device includes: Receiving first capability information on the first frequency band sent by the terminal device through the first user identification card; Or, receiving the first capability information on the first frequency band and the second capability information on the second frequency band sent by the terminal device through the first user identification card.

16. The method according to claim 15, characterized in that The first frequency band includes at least one frequency band, and the second frequency band includes at least one frequency band; In a case where the first frequency band includes at least two frequency bands, the first capability information includes capability information corresponding to at least one frequency band in the first frequency band; In the case that the second frequency band includes at least two frequency bands, the second capability information includes capability information corresponding to at least one frequency band in the second frequency band.

17. The method according to claim 14, characterized in that The first frequency band and the second frequency band are the same frequency band, or the first frequency band and the second frequency band are different frequency bands.

18. The method according to any one of claims 14 to 17, characterized in that: The receiving terminal capability information of the first frequency band combination sent by the terminal device includes: After initial access, receiving terminal capability information of a first frequency band combination sent by a terminal device; Or, receiving unlimited resource control RRC terminal auxiliary information sent by the terminal device, the RRC terminal auxiliary information includes the terminal capability information of the first frequency band combination.

19. The method according to any one of claims 14 to 18, characterized in that: The method further comprises: Receiving working mode indication information sent by the terminal device, the working mode indication information including at least one of the following information: working mode, the first frequency band combination currently working, and working frequency bands corresponding to other user identification cards in the first frequency band combination currently working; The working mode is used to indicate: one of a multi-card working mode and a single-card working mode; the remaining user identification cards are: the user identification cards among the at least two user identification cards except the user identification card that sends the working mode indication information.

20. The method according to any one of claims 14 to 19, characterized in that: The terminal capability information includes at least one of the following: Transmit power capability information; Interference indication information; Uplink and / or downlink MIMO capability information; Supported frequency band information; Number of carriers; Peak rate.

21. The method according to any one of claims 14 to 20, characterized in that: The terminal capability information includes at least one of the following transmission power capability information: Transmit power capability information corresponding to at least one frequency band in the first frequency band combination; The total transmission power capability information of the terminal device.

22. The method according to claim 21, characterized in that The method further comprises: The transmit power control and / or mobility management of the terminal device is performed according to the transmit power capability information.

23. The method according to any one of claims 14 to 22, characterized in that: The terminal capability information includes at least one of the following interference indication information: interference scenario, interference intensity, and a working frequency band corresponding to each user identification card in the first frequency band combination; The interference scenario includes at least one of the following information: interference source frequency band, interfered frequency band, and interference type.

24. The method according to claim 23, characterized in that The method further comprises: Sending a first indication message to the terminal device; the first indication message is used to adjust at least one of the at least two user identification cards The transmitting frequency and / or receiving frequency of a user identification card in the working frequency band; the first indication information is determined by the network device according to the interference indication information.

25. The method according to claim 23, characterized in that The method further comprises: Sending second indication information to the terminal device; the second indication information is used to reduce the transmission frequency of the interference source frequency band; the second indication information is determined by the network device according to the interference indication information.

26. The method according to claim 23, characterized in that The method further comprises: Sending a transmission resource configuration to the terminal device; the transmission resource configuration is used to configure the transmission resources of at least one user identification card among the at least two user identification cards; the transmission resource configuration is configured by the network device according to the interference indication information using time division multiplexing TDM.

27. A terminal capability reporting device, characterized in that: The device comprises at least two user identification cards, and the device comprises: The first sending module is used to send the terminal capability information of the first frequency band combination to the network device, where the first frequency band combination includes the working frequency bands when at least two user identification cards work simultaneously.

28. A terminal capability reporting device, characterized in that: The device comprises: The second receiving module is used to receive terminal capability information of a first frequency band combination sent by a terminal device, wherein the terminal device includes at least two user identification cards, and the first frequency band combination includes working frequency bands when the at least two user identification cards work simultaneously.

29. A terminal device, characterized in that: The terminal device comprises: a processor and a transceiver connected to the processor; wherein, The transceiver is used to send the terminal capability information of the first frequency band combination to the network device, where the first frequency band combination includes the working frequency bands when at least two user identification cards work simultaneously, and the terminal device includes the at least two user identification cards.

30. A network device, characterized in that: The network device comprises: a processor and a transceiver connected to the processor; wherein, The transceiver is used to receive terminal capability information of a first frequency band combination sent by a terminal device, the terminal device includes at least two user identification cards, and the first frequency band combination includes working frequency bands when the at least two user identification cards work simultaneously.

31. A terminal device, characterized in that: The terminal device includes: a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set are loaded and executed by the processor to implement the terminal capability reporting method as described in any one of claims 1 to 13.

32. A network device, characterized in that: The network device includes: a processor and a memory, wherein the memory stores at least one instruction, at least one program, a code set or an instruction set, and the at least one instruction, the at least one program, the code set or the instruction set is loaded and executed by the processor to implement the terminal capability reporting method as described in any one of claims 14 to 26.

33. A computer-readable storage medium, characterized in that: The readable storage medium stores executable instructions, which are loaded and executed by the processor to enable the communication device to implement the terminal capability reporting method as described in any one of claims 1 to 26.

34. A chip, characterized in that: The chip includes a programmable logic circuit or a program, and a communication device equipped with the chip is used to implement the terminal capability reporting method as described in any one of claims 1 to 26.

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