Terminal capability notification method and device, communication equipment and storage medium

Abstract

The invention relates to a terminal capability notification method and device, communication equipment and a storage medium, and relates to the technical field of wireless communication. The method comprises the following steps that: the terminal receives a system message sent by a second network to which a second subscriber identity module card belongs, and then, when a first subscriber identity module card of the terminal is in a connected state and the second subscriber identity module card of the terminal is about to enter the connected state, the system message is sent based on first indication information in the system message; and in the process of performing radio resource control (RRC) establishment or recovery on the second user identification card, sending second indication information used for indicating that the terminal capability is limited to the second network. By adopting the method, the system message issued by the second network can carry the first indication information which allows the terminal to report the limited terminal capability in the RRC establishment or recovery process, so that the terminal can actively report the limited terminal capability in the RRC establishment or recovery process, the state synchronization of the terminal and the second network is realized in advance, and the user experience is improved. And the service time delay of the user identification card in the dual-card bi-pass terminal is reduced.

Description

[0001] This application is a divisional application of the patent application with application number 202311049226.6 (the filing date of the original application is August 18, 2023, and the name of the invention is terminal capability notification method, device, communication equipment and storage medium). Technical Field

[0002] The present application relates to the field of wireless communication technology, and in particular to a terminal capability notification method, apparatus, communication equipment and storage medium. Background Art

[0003] Dual-SIM dual-pass terminals can connect to two networks at the same time through two user identification cards. In the current dual-SIM dual-pass terminal standard, the two user identification cards of the dual-SIM dual-pass terminal share the front-end radio frequency resources. Therefore, when one user identification card is in the connected state and the other user identification card also enters the connected state, terminal resource preemption will occur. If the terminal originally in the connected state occupies all the transceiver resources, the terminal capacity will decrease, which is inconsistent with the maximum capacity of the terminal reported during registration, resulting in the terminal and the network being out of sync in their understanding of the actual terminal capacity status, causing packet loss and link failure when sending data.

[0004] Currently, when a dual-SIM dual-pass terminal establishes a connection with a user identification card and finds a front-end resource conflict, the terminal will passively report the terminal capability change to the network and complete RRC (Radio Resource Control) reconfiguration, reducing the terminal capability before establishing a connection with the other card, which will cause a large delay for the service of the other card. Summary of the invention

[0005] Based on this, it is necessary to provide a terminal capability notification method, apparatus, communication device and storage medium that can reduce the service delay of a user identification card in a dual-card dual-pass terminal in response to the above technical problems.

[0006] In a first aspect, the present application provides a terminal capability notification method, applied to a terminal, the method comprising:

[0007] A system message sent by a second network to which a second user identification card of the receiving terminal belongs;

[0008] When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, based on the first indication information in the system message, during the process of establishing or restoring the radio resource control RRC for the second user identification card, second indication information is sent to the second network; wherein the second indication information is used to indicate that the terminal capability is limited.

[0009] In one embodiment, sending the second indication information to the second network includes:

[0010] Sending an RRC establishment or recovery completion message for the second user identification card to the second network; wherein the RRC establishment or recovery completion message carries the second indication information.

[0011] In one embodiment, the method further comprises:

[0012] When both the first user identification card and the second user identification card are in a connected state, receiving a first RRC reconfiguration message sent by the second network;

[0013] Based on the third indication information in the first RRC reconfiguration message, a restricted capability set of the terminal is sent to the second network; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities.

[0014] In one of the embodiments, sending the restricted capability set of the terminal to the second network includes:

[0015] A terminal assistance message carrying the restricted capability set of the terminal is sent to the second network.

[0016] In one embodiment, the method further comprises:

[0017] When a first user identification card of the terminal is in a connected state and a second user identification card of the terminal is about to enter a connected state, receiving a second RRC reconfiguration message sent by a first network to which the first user identification card belongs;

[0018] When both the first user identification card and the second user identification card are in a connected state, based on the fourth indication information in the second RRC reconfiguration message, a restricted capability set of the terminal is sent to the first network.

[0019] In one of the embodiments, sending the restricted capability set of the terminal to the first network includes:

[0020] A terminal assistance message carrying a restricted capability set of the terminal is sent to the first network.

[0021] In one of the embodiments, the restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

[0022] In one of the embodiments, the set of restricted capabilities includes at least one of potential band combination conflict, multiple-input multiple-output (MIMO) capability, and measurement period capability.

[0023] In one of the embodiments, the first RRC reconfiguration message carries the timing duration, and sends a terminal assistance message carrying the restricted capability set of the terminal to the second network, including:

[0024] A terminal assistance message carrying the restricted capability set of the terminal is sent to the second network according to the timing duration.

[0025] In one of the embodiments, sending a terminal assistance message carrying a set of restricted capabilities of the terminal to the second network according to the timing duration includes:

[0026] Sending a terminal assistance message carrying a restricted capability set of the terminal to the second network, and initializing a timer;

[0027] When the timing of the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the second network again.

[0028] In one of the embodiments, sending a terminal assistance message carrying a set of restricted capabilities of the terminal to the second network according to the timing duration includes:

[0029] When the timer does not reach the timing duration, if a new timing duration sent by the second network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the second network according to the new timing duration.

[0030] In one of the embodiments, the second RRC reconfiguration message carries the timing duration, and sends a terminal assistance message carrying the restricted capability set of the terminal to the first network, including:

[0031] A terminal assistance message carrying a restricted capability set of the terminal is sent to the first network according to the timing duration.

[0032] In one of the embodiments, sending a terminal assistance message carrying a set of restricted capabilities of the terminal to the first network according to the timing duration includes:

[0033] Sending a terminal assistance message carrying a restricted capability set of the terminal to the first network, and initializing a timer;

[0034] When the timing of the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the first network again.

[0035] In one of the embodiments, sending a terminal assistance message carrying a set of restricted capabilities of the terminal to the first network according to the timing duration includes:

[0036] When the timer does not reach the timing duration, if a new timing duration sent by the first network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the first network according to the new timing duration.

[0037] In a second aspect, the present application provides a terminal capability notification method, which is applied to a second network to which a second user identification card of the terminal belongs, and the method includes:

[0038] Sending a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card;

[0039] When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, second indication information sent by the terminal based on the first indication information in the system message is received; wherein the second indication information is used to indicate that the terminal capability is limited.

[0040] In one of the embodiments, receiving second indication information sent by a terminal based on first indication information in a system message includes:

[0041] The receiving terminal sends an RRC establishment or recovery completion message for the second user identification card based on the first indication information in the system message; wherein the RRC establishment or recovery completion message carries the second indication information.

[0042] In one embodiment, the method further comprises:

[0043] When both the first user identification card and the second user identification card are in a connected state, sending a first RRC reconfiguration message to the terminal;

[0044] The receiving terminal sends a restricted capability set of the terminal based on the third indication information in the first RRC reconfiguration message; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capability.

[0045] In one of the embodiments, the restricted capability set of the terminal sent by the receiving terminal based on the third indication information in the first RRC reconfiguration message includes:

[0046] A terminal assistance message is sent by the receiving terminal based on the third indication information in the first RRC reconfiguration message; wherein the terminal assistance message carries a restricted capability set of the terminal.

[0047] In one of the embodiments, the restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

[0048] In one of the embodiments, the set of restricted capabilities includes at least one of potential band combination conflict, multiple-input multiple-output (MIMO) capability, and measurement period capability.

[0049] In one of the embodiments, the first RRC reconfiguration message carries a timing duration, and the method further includes:

[0050] In the case that the timing of the timer does not reach the timing duration, if a terminal assistance message carrying the restricted capability set of the terminal sent by the terminal is received, no response is made to the terminal assistance message.

[0051] In a third aspect, the present application further provides a terminal capability notification device, the device comprising:

[0052] A first receiving module, used for receiving a system message sent by a second network to which a second user identification card of the terminal belongs;

[0053] The first sending module is used to send second indication information to the second network during the process of establishing or restoring the radio resource control RRC for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0054] In a fourth aspect, the present application further provides a terminal capability notification device, the device comprising:

[0055] A second sending module, used to send a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card;

[0056] The second receiving module is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0057] In a fifth aspect, the present application further provides a communication device, the communication device comprising: a transmitter, a receiver, a processor and a memory, the memory storing a computer program;

[0058] The receiver is used to receive a system message sent by a second network to which a second user identification card of the terminal belongs;

[0059] The transmitter is used to send second indication information to the second network during the process of establishing or restoring radio resource control (RRC) for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0060] In a sixth aspect, the present application further provides a communication device, the communication device comprising: a transmitter, a receiver, a processor and a memory, the memory storing a computer program;

[0061] The transmitter is used to send a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card;

[0062] The receiver is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0063] In a seventh aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which implements the steps of the method of the first aspect or the second aspect when the computer program is executed by a processor.

[0064] In an eighth aspect, the present application further provides a computer program product, comprising a computer program, which implements the steps of the method of the first aspect or the second aspect when executed by a processor.

[0065] The above-mentioned terminal capability notification method, device, communication equipment and storage medium, the terminal receives a system message sent by the second network to which the second user identification card belongs, and then when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, based on the first indication information in the system message, during the process of establishing or restoring the radio resource control RRC for the second user identification card, the second indication information for indicating that the terminal capability is limited is sent to the second network. In the system message sent by the second network to the terminal, the present application carries the first indication information allowing the terminal to report the limited terminal capability during the process of establishing or restoring the RRC, so that the terminal can actively report the limited terminal capability during the process of establishing or restoring the RRC, realize the state synchronization of the terminal and the second network in advance, and reduce the service delay of the user identification card in the dual-card dual-pass terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 This is an application scenario diagram of a terminal capability notification method in an embodiment;

[0067] Figure 2 is a flow chart of a method for notifying terminal capabilities in an embodiment;

[0068] Figure 3 It is a schematic diagram of a process of reporting a set of restricted capabilities of a terminal to a second network in one embodiment;

[0069] Figure 4 A schematic diagram of a process of reporting a set of restricted capabilities of a terminal to a first network in one embodiment;

[0070] Figure 5 is a flow chart of a terminal capability notification method in another embodiment;

[0071] Figure 6 A schematic diagram of a process of receiving a restricted capability set of a terminal in one embodiment;

[0072] Figure 7 is a flow chart of a method for notifying terminal capabilities in yet another embodiment;

[0073] Figure 8 is a structural block diagram of a terminal capability notification device in an embodiment;

[0074] Fig. 9 It is a structural block diagram of a terminal capability notification device in another embodiment;

[0075] Fig.10 It is a structural block diagram of a terminal capability notification device in yet another embodiment;

[0076] Fig.11 It is a structural block diagram of another terminal capability notification device in one embodiment;

[0077] Fig.12 It is a structural block diagram of another terminal capability notification device in another embodiment. DETAILED DESCRIPTION

[0078] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0079] The terminal capability notification method provided in the embodiment of the present application can be applied to Figure 1In the application environment shown. Among them, the dual-card dual-pass terminal 101 can be connected to the first network 102 and the second network 103 at the same time through two user identification cards, that is, the two user identification cards can be used at the same time without affecting each other. Specifically, the first network 102 and the second network 103 can both send a system message to the dual-card dual-pass terminal 101, wherein the system message carries indication information allowing the terminal to report the limited terminal capability during the RRC establishment or recovery process, and then the dual-card dual-pass terminal 101 can send an RRC establishment or recovery completion message carrying the indication information of the limited terminal capability to the first network 102 and the second network 103 during the RRC establishment or recovery process. In addition, the first network 102 and the second network 103 can also send an RRC reconfiguration message to the dual-card dual-channel terminal 101, wherein the RRC reconfiguration message carries indication information allowing the terminal to report a terminal restriction capability set, and then the dual-card dual-channel terminal 101 can report the terminal restriction capability set to the first network 102 and the second network 103 respectively through UAI (UE Assistance Information, terminal assistance message), so that the first network 102 and the second network 103 can determine whether to configure the terminal capabilities and how to configure the terminal capabilities.

[0080] The dual-SIM dual-pass terminal 101 may be, but is not limited to, various personal computers, laptops, smart phones, tablet computers, IoT devices, and portable wearable devices. The IoT devices may be smart speakers, smart TVs, smart air conditioners, smart car-mounted devices, etc. Portable wearable devices may be smart watches, smart bracelets, head-mounted devices, etc. The first network 102 and the second network 103 may be 4G (4th Generation Mobile Communication Technology) networks or 5G (5th Generation Mobile Communication Technology) networks, that is, the two user identification cards of the dual-SIM dual-pass terminal 101 may respectively access LTE (LongTerm Evolution) and NR (New Radio) cells.

[0081] In one embodiment, Figure 2 As shown, a terminal capability notification method is provided, which is applied to a terminal and includes the following steps:

[0082] S201, receiving a system message sent by a second network to which a second subscriber identification card of a terminal belongs.

[0083] The terminal is a dual-card dual-pass terminal, in which two user identification cards, namely a first user identification card and a second user identification card, can be used at the same time without affecting each other. The first user identification card accesses the first network, and the second user identification card accesses the second network. The first user identification card and the second user identification card share front-end radio frequency resources.

[0084] The terminal receives a system message sent by a second network to which the second user identification card belongs, where the system message carries first indication information, and the first indication information is used to indicate that the terminal can report to the second network during RRC establishment or recovery that the terminal capability is limited.

[0085] Specifically, the terminal may receive a system message sent by the second network at any time after registering with the second network. This embodiment does not limit the time of receiving the system message. The system message can be a broadcast system message, such as broadcast SIB1 (System Information Block #1), or a non-broadcast system message, such as on-demand SI (on-demand System Information). Compared with broadcast SIB1, on-demand SI can save base station power consumption and signaling length. For example, the second network allocates a specified random access preamble index in the system message for the terminal to carry in the random access PRACH request, and then the second network responds in the MSG2 RAR message and sends a system message carrying the first indication information to the terminal.

[0086] S202, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, based on the first indication information in the system message, during the process of establishing or restoring the radio resource control RRC for the second user identification card, second indication information is sent to the second network.

[0087] The first user identification card is in a connected state, indicating that connections have been established between the terminal and the base station, and between the base station and the core network. The terminal can perform data transmission based on the first user identification card at any time, and no delay is required to establish the connection state.

[0088] The second user identification card is about to enter the connected state, which can be from the deactivated state to the connected state, or from the idle state to the connected state. Among them, the second user identification card enters the connected state from the deactivated state, indicating that no connection is established between the terminal and the base station, and a connection is established between the base station and the core network for the terminal. Once there is data to be sent to the terminal, the base station will send a paging so that the terminal can quickly establish a connection with the base station after receiving it, and enter the connected state from the deactivated state, and then data can be transmitted based on the second user identification card. The second user identification card enters the connected state from the idle state, indicating that no connection is established between the terminal and the base station, and between the base station and the core network for the terminal. If there is data to be sent to the terminal, or the terminal needs to send data, it takes a relatively long delay to enter the connected state from the idle state.

[0089] When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state from a deactivated state or an idle state, the terminal monitors the paging sent by the second network at a regular interval, and during the RRC establishment or recovery process for the second user identification card, the terminal sends an RRC establishment or recovery request to the second network based on the received system message, and then receives the relevant information required for RRC establishment or recovery returned by the second network based on the RRC establishment or recovery request. Furthermore, the terminal sends second indication information to the second network based on the first indication information in the system message, wherein the second indication information is used to indicate that the terminal capability is limited.

[0090] It is understandable that, since the first user identification card and the second user identification card share the front-end radio frequency resources, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, the terminal capability is limited. Specifically, the first network may have occupied all radio frequency capabilities. In this case, the terminal needs to release part of the radio frequency capabilities to establish a connection with the second network; the first network may also have occupied part of the radio frequency capabilities. In this case, there will be no conflict when the terminal establishes a connection with the second network. This embodiment specifically takes the second case as an example for explanation.

[0091] In an optional embodiment, an RRC establishment or recovery completion message for the second user identification card is sent to the second network; wherein the RRC establishment or recovery completion message carries the second indication information.

[0092] For example, based on the first indication information in the system message, the terminal sends an RRC establishment or recovery completion message (MSG5) for the second user identity card to the second network, and the RRC establishment or recovery completion message carries second indication information for indicating that the terminal capability is limited.

[0093] It should be noted that if the second user identification card enters the connected state from the deactivated state, the terminal sends an RRC recovery completion message carrying the second indication information to the second network during the RRC recovery process of the second user identification card; if the second user identification card enters the connected state from the idle state, the terminal sends an RRC establishment completion message carrying the second indication information to the second network during the RRC establishment process of the second user identification card.

[0094] In the above scheme, the terminal receives a system message sent by the second network to which the second user identification card belongs, and then, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, based on the first indication information in the system message, during the process of establishing or restoring the radio resource control RRC for the second user identification card, the terminal sends the second indication information for indicating that the terminal capability is limited to the second network. In this embodiment, the system message sent by the second network to the terminal carries the first indication information that allows the terminal to report the limited terminal capability during the process of establishing or restoring the RRC, so that the terminal can actively report the limited terminal capability during the process of establishing or restoring the RRC, realize the state synchronization of the terminal and the second network in advance, and reduce the service delay of the user identification card in the dual-card dual-pass terminal.

[0095] In order to avoid conflicts when the second network configures the terminal capabilities, based on the above embodiment, in one embodiment, some terminal capabilities that may be restricted may be reported to the second network in advance based on the third indication information in the first RRC reconfiguration message that allows the terminal to report the restricted capability set, such as Figure 3 As shown, the terminal capability notification method may further include:

[0096] S301, receiving a first RRC reconfiguration message sent by a second network when both a first user identification card and a second user identification card are in a connected state.

[0097] The terminal completes the RRC establishment or recovery process for the second user identification card, and the second user identification card also enters the connected state. In this case, the terminal receives a first RRC reconfiguration message for the second user identification card sent by the second network. The first RRC reconfiguration message carries third indication information, and the third indication information is used to indicate that the terminal can report the restricted capability set of the terminal.

[0098] S302: Send a restricted capability set of the terminal to the second network based on the third indication information in the first RRC reconfiguration message.

[0099] The terminal sends a first RRC reconfiguration completion message to the second network. Further, the terminal may actively send a restricted capability set of the terminal to the second network based on the third indication information. The restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capability. Specifically, the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capability and how to configure the terminal capability.

[0100] In an optional embodiment, a terminal assistance message carrying the restricted capability set of the terminal is sent to the second network.

[0101] The terminal assistance message is UAI. Through the terminal assistance message, the terminal can inform the network of its internal state so that the network side can perform resource scheduling to better match the specific state of the terminal. In this embodiment, the terminal can report the terminal's restricted capability set to the second network through UAI.

[0102] It is understandable that all communication processes are centrally scheduled by the base station. The base station can only correctly configure the terminal capabilities after knowing the terminal capabilities. If the terminal supports a certain function, the base station can configure the function for the terminal. Conversely, if the terminal does not support a certain function, the base station cannot configure the function for the terminal.

[0103] In an optional embodiment, the restricted capability set reported by the terminal includes at least one of potential frequency band combination conflict, multiple-in multiple-out (MIMO) capability, and measurement period capability.

[0104] Optionally, the restricted capability set includes at least one of the terminal's current restricted capabilities and future potential restricted capabilities. In other words, the terminal can not only report to the second network the terminal's currently restricted terminal capabilities, but also report to the second network the terminal's capabilities that may be restricted in the future. By reporting the future restricted capabilities to the second network in advance, the impact on the service establishment delay of the second user identification card in the future can be reduced.

[0105] For potential frequency band combination conflicts, the reported future potential restriction capabilities are expressed as IE definitions of the frequency band combination conflict list. For example, the second network resides in the N78 frequency band, and the first user identification card resides in the N1 frequency band. Currently, there is no conflict in the frequency band combination of N1 and N78, but the terminal cannot support N78 and N79 at the same time. Therefore, the terminal can report N78 and N79, which may conflict in the future, as future potential restriction capabilities to the second network, so that the second network will not reconfigure the network of the first user identification card to N79 in the subsequent RRC reconfiguration process, thereby avoiding conflicts.

[0106] Terminal capabilities are divided into different levels of capabilities, such as specific terminal capabilities, each terminal can have different capabilities, and this terminal capability applies to all carriers and carrier combinations supported by the terminal, and terminal capabilities at the carrier combination level, each carrier combination can have different capabilities, and carrier-level capabilities, each carrier can have different capabilities. Terminal capabilities may include the maximum uplink and downlink transmission rate of the terminal service channel, the number of MIMO layers supported by the terminal service channel, that is, MIMO capability, and the highest-order modulation method supported by the terminal service channel.

[0107] The measurement period capability refers to the ability of a terminal to measure the signal level or signal quality of a cell to generate a measurement report and send the measurement report to the network at a certain period.

[0108] The restricted capability set may also include CC (Component Carrier) capability or CG (Cell Group) capability, etc., which is not limited in this embodiment.

[0109] In this embodiment, when both the first user identification card and the second user identification card are in a connected state, the terminal receives the first RRC reconfiguration message sent by the second network, and then sends the terminal's restricted capability set to the second network based on the third indication information in the first RRC reconfiguration message. It can be understood that if the terminal can actively report the terminal capabilities that may be affected in the future (such as frequency band combination conflicts), the terminal capability conflicts caused by subsequent RRC reconfiguration or RRC recovery can be avoided, thereby avoiding the introduction of additional service delays. In other words, the terminal reports the restricted capability set in the connection reconfiguration for the second user identification card, so that the second network can decide whether to reconfigure the terminal wireless resources, achieve better state synchronization between the terminal and the second network, effectively avoid packet loss and link failure during data transmission, and actively report the current restricted capabilities and future restricted capabilities of the terminal, which can further reduce the impact on the service establishment delay of the second user identification card in the future.

[0110] As an optional implementation manner in this embodiment, the first RRC reconfiguration message also carries the timing duration of the timer, for example, the timing duration of the timer is carried in the other config message.

[0111] The terminal sends a terminal assistance message carrying the restricted capability set of the terminal to the second network according to the timing duration.

[0112] For example, after sending a terminal assistance message carrying a restricted capability set of the terminal once, the terminal starts a timer and waits for the timer to time out before sending the terminal assistance message carrying the restricted capability set of the terminal again. That is, the terminal assistance message carrying the restricted capability set of the terminal is sent according to the timing duration. In this way, excessive signaling consumption is avoided.

[0113] Optionally, the terminal sends a terminal assistance message carrying a restricted capability set of the terminal to the second network and initializes a timer; if the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the second network again. In other words, after sending a terminal assistance message carrying a restricted capability set of the terminal once, the terminal starts the timer, and if the timer does not time out, the terminal is prohibited from sending the terminal assistance message to the second network again.

[0114] Furthermore, when the timer has not reached the timing duration, if a new timing duration sent by the second network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the second network according to the new timing duration. That is, if the timer has not expired, the second network again sends the first RRC reconfiguration message, and the first RRC reconfiguration message carries the timing duration of the new timer, the original timer stops automatically, and the terminal can send the terminal assistance message carrying the restricted capability set of the terminal again and start a new timer.

[0115] It is understandable that if the terminal sends the terminal assistance message carrying the restricted capability set of the terminal again before the timer expires, the second network may not process it.

[0116] In this way, the timer can prevent frequent reporting of the terminal's restricted capability set, avoid large overhead and unnecessary RRC reconfiguration, and save resources and optimize processes while ensuring that the terminal can successfully report the restricted capability set to the second network.

[0117] In order to avoid conflicts when the first network to which the first user identity card belongs performs RRC reconfiguration, based on the above embodiment, in one embodiment, the terminal's restricted capability set can also be reported to the first network, such as Figure 4 As shown, the terminal capability notification method may further include:

[0118] S401: When a first user identification card of a terminal is in a connected state and a second user identification card of the terminal is about to enter a connected state, receiving a second RRC reconfiguration message sent by a first network to which the first user identification card belongs.

[0119] Specifically, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is not in a connected state, for example, before the terminal receives a system message sent by the second network, the terminal receives a second RRC reconfiguration message for the first user identification card sent by the first network. The second RRC reconfiguration message carries fourth indication information, and the fourth indication information is used to indicate that the terminal can report a restricted capability set of the terminal.

[0120] S402: When both the first user identification card and the second user identification card are in a connected state, based on fourth indication information in the second RRC reconfiguration message, send a restricted capability set of the terminal to the first network.

[0121] The terminal completes the RRC establishment or recovery process for the second user identification card, and the second user identification card also enters the connected state. In this case, for example, after the second network determines whether to configure the terminal capabilities based on the restricted capability set reported by the terminal, the terminal sends a second RRC reconfiguration completion message to the first network. Further, the terminal can actively send the restricted capability set of the terminal to the first network based on the fourth indication information. Among them, the restricted capability set of the terminal is used for the first network to determine whether to configure the terminal capabilities. Specifically, the restricted capability set of the terminal is used for the first network to determine whether to configure the terminal capabilities and how to configure the terminal capabilities.

[0122] In an optional embodiment, a terminal assistance message carrying a restricted capability set of the terminal is sent to the first network.

[0123] The terminal assistance message is UAI. Through the terminal assistance message, the terminal can inform the network of its internal state so that the network side can perform resource scheduling to better match the specific state of the terminal. In this embodiment, the terminal can report the terminal's restricted capability set to the first network through UAI.

[0124] In an optional embodiment, the restricted capability set reported by the terminal includes at least one of potential frequency band combination conflict, multiple-in multiple-out (MIMO) capability, and measurement period capability.

[0125] Optionally, the restricted capability set includes at least one of the terminal's current restricted capabilities and future potential restricted capabilities. In other words, the terminal can not only report to the first network the terminal's currently restricted terminal capabilities, but also report to the first network the terminal's capabilities that may be restricted in the future. By reporting the future restricted capabilities to the first network in advance, the impact on the service establishment delay of the first user identification card in the future can be reduced.

[0126] For potential frequency band combination conflicts, the reported future potential restriction capabilities are expressed as IE definitions of the frequency band combination conflict list. For example, the second network resides in the N78 frequency band, and the first user identification card resides in the N1 frequency band. Currently, there is no conflict in the frequency band combination of N1 and N78, but the terminal cannot support N78 and N79 at the same time. Therefore, the terminal can report N78 and N79, which may conflict in the future, as future potential restriction capabilities to the first network, so that the first network will not reconfigure the network of the first user identification card to N79 in the subsequent RRC reconfiguration process, thereby avoiding conflicts.

[0127] Terminal capabilities are divided into different levels of capabilities, such as specific terminal capabilities, each terminal can have different capabilities, and this terminal capability applies to all carriers and carrier combinations supported by the terminal, and terminal capabilities at the carrier combination level, each carrier combination can have different capabilities, and carrier-level capabilities, each carrier can have different capabilities. Terminal capabilities may include the maximum uplink and downlink transmission rate of the terminal service channel, the number of MIMO layers supported by the terminal service channel, that is, MIMO capability, and the highest-order modulation method supported by the terminal service channel.

[0128] The measurement period capability refers to the ability of a terminal to measure the signal level or signal quality of a cell to generate a measurement report and send the measurement report to the network at a certain period.

[0129] The restricted capability set may also include CC (Component Carrier) capability or CG (Cell Group) capability, etc., which is not limited in this embodiment.

[0130] In this embodiment, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, the terminal receives a second RRC reconfiguration message sent by the first network to which the first user identification card belongs, and then when both the first user identification card and the second user identification card are in a connected state, the terminal sends a restricted capability set of the terminal to the first network based on the fourth indication information in the second RRC reconfiguration message. The terminal reports the restricted capability set in the connection reconfiguration for the first user identification card, so that the first network can decide whether to reconfigure the unlimited resources of the terminal, achieves better state synchronization between the terminal and the first network, effectively avoids packet loss and link failure during data transmission, and actively reports the current restricted capability and future restricted capability of the terminal, which can further reduce the impact on the service establishment delay of the first user identification card in the future.

[0131] As an optional implementation manner in this embodiment, the second RRC reconfiguration message also carries the timing duration of the timer, for example, the timing duration of the timer is carried in the other config message.

[0132] The terminal sends a terminal assistance message carrying the restricted capability set of the terminal to the first network according to the timing duration. For example, after sending the terminal assistance message carrying the restricted capability set of the terminal once, the terminal starts a timer and waits for the timer to time out before sending the terminal assistance message carrying the restricted capability set of the terminal again, that is, sending the terminal assistance message carrying the restricted capability set of the terminal according to the timing duration, thus avoiding excessive signaling consumption.

[0133] Optionally, the terminal sends a terminal assistance message carrying a restricted capability set of the terminal to the first network and initializes a timer; if the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the first network again. In other words, after sending a terminal assistance message carrying a restricted capability set of the terminal once, the terminal starts the timer, and if the timer does not time out, the terminal is prohibited from sending the terminal assistance message to the first network again.

[0134] Furthermore, when the timer has not reached the timing duration, if a new timing duration sent by the first network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the first network according to the new timing duration. That is, if the timer has not expired, the first network again sends a second RRC reconfiguration message, and the second RRC reconfiguration message carries the timing duration of the new timer, the original timer stops automatically, and the terminal can send the terminal assistance message carrying the restricted capability set of the terminal again and start a new timer.

[0135] It is understandable that if the terminal sends the terminal assistance message carrying the restricted capability set of the terminal again before the timer expires, the first network may not process it.

[0136] In this way, the timer can prevent frequent reporting of the terminal's restricted capability set, avoid large overhead and unnecessary RRC reconfiguration, and save resources and optimize processes while ensuring that the terminal can successfully report the restricted capability set to the first network.

[0137] In one embodiment, Figure 5 As shown, a terminal capability notification method is provided, which is applied to a second network to which a second user identification card of the terminal belongs, and includes the following steps:

[0138] S501, sending a system message to a terminal.

[0139] The system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the process of establishing or restoring the RRC for the second user identification card.

[0140] Specifically, the terminal is a dual-card dual-pass terminal, in which two user identification cards, namely a first user identification card and a second user identification card, can be used simultaneously without affecting each other. The first user identification card accesses the first network, and the second user identification card accesses the second network. The first user identification card and the second user identification card share front-end radio frequency resources.

[0141] The second network sends a system message to the terminal, where the system message carries first indication information, and the first indication information is used to indicate that the terminal can report to the second network that the terminal capability is limited during the RRC establishment or recovery process.

[0142] Specifically, after the terminal registers with the second network, the second network may send a system message to the terminal at any time. This embodiment does not limit the time of sending the system message. The system message can be a broadcast system message, such as broadcast SIB1 (SystemInformation Block#1), or a non-broadcast system message, such as on-demand SI (on-demand SystemInformation). Compared with the broadcast SIB1, on-demand SI can save base station power consumption and signaling length. For example, the second network allocates a specified random access preamble index in the system message for the terminal to carry in the random access PRACH request, and then the second network responds in the MSG2 RAR message and sends a system message carrying the first indication information to the terminal. The first indication information is used to indicate that the terminal can report to the second network that the terminal capability is limited during the RRC establishment or recovery process.

[0143] S502: When a first subscriber identification card of a terminal is in a connected state and a second subscriber identification card of the terminal is about to enter a connected state, receiving second indication information sent by the terminal based on the first indication information in a system message.

[0144] The second indication information is used to indicate that the terminal capability is limited.

[0145] The first user identification card is in a connected state, indicating that connections have been established between the terminal and the base station, and between the base station and the core network. The terminal can perform data transmission based on the first user identification card at any time, and no delay is required to establish the connection state.

[0146] The second user identification card is about to enter the connected state, which can be from the deactivated state to the connected state, or from the idle state to the connected state. Among them, the second user identification card enters the connected state from the deactivated state, indicating that no connection is established between the terminal and the base station, and a connection is established between the base station and the core network for the terminal. Once there is data to be sent to the terminal, the base station will send a paging so that the terminal can quickly establish a connection with the base station after receiving it, and enter the connected state from the deactivated state, and then data can be transmitted based on the second user identification card. The second user identification card enters the connected state from the idle state, indicating that no connection is established between the terminal and the base station, and between the base station and the core network for the terminal. If there is data to be sent to the terminal, or the terminal needs to send data, it takes a relatively long delay to enter the connected state from the idle state.

[0147] When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state from a deactivated state or an idle state, the terminal monitors the paging sent by the second network at a regular interval, and during the RRC establishment or recovery process for the second user identification card, the terminal sends an RRC establishment or recovery request to the second network based on the received system message, and then receives the relevant information required for RRC establishment or recovery returned by the second network based on the RRC establishment or recovery request. Furthermore, the terminal sends second indication information to the second network based on the first indication information in the system message.

[0148] Correspondingly, the second network receives second indication information sent by the terminal, wherein the second indication information is used to indicate that the terminal capability is limited.

[0149] It is understandable that, since the first user identification card and the second user identification card share the front-end radio frequency resources, when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, the terminal capability is limited. Specifically, the first network may have occupied all radio frequency capabilities. In this case, the terminal needs to release part of the radio frequency capabilities to establish a connection with the second network; the first network may also have occupied part of the radio frequency capabilities. In this case, there will be no conflict when the terminal establishes a connection with the second network. This embodiment specifically takes the second case as an example for explanation.

[0150] In an optional embodiment, the receiving terminal sends an RRC establishment or recovery completion message for the second user identification card based on the first indication information in the system message; wherein the RRC establishment or recovery completion message carries the second indication information.

[0151] For example, based on the first indication information in the system message, the terminal sends an RRC establishment or recovery completion message (MSG5) for the second user identification card to the second network. Accordingly, the second network receives the RRC establishment or recovery completion message, which carries second indication information for indicating that the terminal capability is limited.

[0152] It should be noted that if the second user identification card enters the connected state from the deactivated state, the terminal sends an RRC recovery completion message carrying the second indication information to the second network during the RRC recovery process of the second user identification card; if the second user identification card enters the connected state from the idle state, the terminal sends an RRC establishment completion message carrying the second indication information to the second network during the RRC establishment process of the second user identification card.

[0153] In the above scheme, the second network sends a system message to the terminal, and then when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, the receiving terminal sends the second indication information based on the first indication information in the system message; wherein the second indication information is used to indicate that the terminal capability is limited. In this embodiment, the system message sent by the second network to the terminal carries the first indication information that allows the terminal to report the limited terminal capability during the RRC establishment or recovery process, so that the terminal can actively report the limited terminal capability during the RRC establishment or recovery process, realize the state synchronization of the terminal and the second network in advance, and reduce the service delay of the user identification card in the dual-card dual-pass terminal.

[0154] In order to avoid conflicts when the second network configures the terminal capabilities, based on the above embodiment, in one embodiment, the second network may carry third indication information that allows the terminal to report a restricted capability set in the first RRC reconfiguration message sent to the terminal, so that the terminal can report some terminal capabilities that may be restricted in advance, such as Figure 6 As shown, the terminal capability notification method may further include:

[0155] S601: When both the first user identification card and the second user identification card are in a connected state, a first RRC reconfiguration message is sent to a terminal.

[0156] The terminal completes the RRC establishment or recovery process for the second user identification card, and the second user identification card also enters the connected state. In this case, the second network sends a first RRC reconfiguration message for the second user identification card to the terminal. The first RRC reconfiguration message carries third indication information, and the third indication information is used to indicate that the terminal can report the terminal's restricted capability set.

[0157] S602: receiving a terminal restriction capability set sent by the terminal based on third indication information in the first RRC reconfiguration message.

[0158] The second network receives a first RRC reconfiguration completion message sent by the terminal, and further receives a set of restricted capabilities of the terminal actively sent by the terminal based on the third indication information. The set of restricted capabilities of the terminal is used for the second network to determine whether to configure the terminal capabilities, and specifically, the set of restricted capabilities of the terminal is used for the second network to determine whether to configure the terminal capabilities and how to configure the terminal capabilities.

[0159] In an optional embodiment, a terminal assistance message is sent by the receiving terminal based on the third indication information in the first RRC reconfiguration message; wherein the terminal assistance message carries the restricted capability set of the terminal.

[0160] The terminal assistance message is UAI. Through the terminal assistance message, the terminal can inform the network of its internal state so that the network side can perform resource scheduling to better match the specific state of the terminal. In this embodiment, the terminal can report the terminal's restricted capability set to the second network through UAI. Correspondingly, the second network receives the terminal's restricted capability set reported by the terminal through UAI.

[0161] In an optional embodiment, the restricted capability set reported by the terminal includes at least one of potential frequency band combination conflict, multiple-in multiple-out (MIMO) capability, and measurement period capability.

[0162] Optionally, the restricted capability set includes at least one of the terminal's current restricted capabilities and future potential restricted capabilities. In other words, the terminal can not only report to the second network the terminal's currently restricted terminal capabilities, but also report to the second network the terminal's capabilities that may be restricted in the future. By reporting the future restricted capabilities to the second network in advance, the impact on the service establishment delay of the second user identification card in the future can be reduced.

[0163] For potential frequency band combination conflicts, the reported future potential restriction capabilities are expressed as IE definitions of the frequency band combination conflict list. For example, the second network resides in the N78 frequency band, and the first user identification card resides in the N1 frequency band. Currently, there is no conflict in the frequency band combination of N1 and N78, but the terminal cannot support N78 and N79 at the same time. Therefore, the terminal can report N78 and N79, which may conflict in the future, as future potential restriction capabilities to the second network, so that the second network will not reconfigure the network of the first user identification card to N79 in the subsequent RRC reconfiguration process, thereby avoiding conflicts.

[0164] Terminal capabilities are divided into different levels of capabilities, such as specific terminal capabilities, each terminal can have different capabilities, and this terminal capability applies to all carriers and carrier combinations supported by the terminal, and terminal capabilities at the carrier combination level, each carrier combination can have different capabilities, and carrier-level capabilities, each carrier can have different capabilities. Terminal capabilities may include the maximum uplink and downlink transmission rate of the terminal service channel, the number of MIMO layers supported by the terminal service channel, that is, MIMO capability, and the highest-order modulation method supported by the terminal service channel.

[0165] The measurement period capability refers to the ability of a terminal to measure the signal level or signal quality of a cell to generate a measurement report and send the measurement report to the network at a certain period.

[0166] The restricted capability set may also include CC (Component Carrier) capability or CG (Cell Group) capability, etc., which is not limited in this embodiment.

[0167] In this embodiment, when both the first user identification card and the second user identification card are in a connected state, a first RRC reconfiguration message is sent to the terminal, and then the terminal receives the terminal's restricted capability set sent based on the third indication information in the first RRC reconfiguration message. It can be understood that if the terminal can actively report the terminal capabilities that may be affected in the future (such as frequency band combination conflicts), the terminal capability conflicts caused by subsequent RRC reconfiguration or RRC recovery can be avoided, thereby avoiding the introduction of additional service delays. In other words, the terminal reports the restricted capability set in the connection reconfiguration for the second user identification card, so that the second network can decide whether to reconfigure the terminal wireless resources, achieve better state synchronization between the terminal and the second network, effectively avoid packet loss and link failure during data transmission, and actively report the current restricted capabilities and future restricted capabilities of the terminal, which can further reduce the impact on the service establishment delay of the second user identification card in the future.

[0168] As an optional implementation of this embodiment, the first RRC reconfiguration message carries a timing duration. If the second network receives a terminal assistance message carrying a set of restricted capabilities of the terminal sent by the terminal when the timer has not reached the timing duration, the second network does not respond to the terminal assistance message.

[0169] Specifically, the terminal may report the terminal's restricted capability set to the second network based on the timing duration carried in the first RRC reconfiguration message. For example, after the terminal sends a terminal assistance message carrying the terminal's restricted capability set once, the terminal starts a timer. If the timer does not reach the timing duration, the terminal is prohibited from sending the terminal assistance message to the second network again.

[0170] If the terminal sends a terminal assistance message carrying the terminal's restricted capability set again before the timer expires, the second network may not process it. Conversely, if the second network receives a terminal assistance message carrying the terminal's restricted capability set sent again by the terminal before the timer expires, it will not respond to it.

[0171] It should be noted that, for the first network, the timing duration may also be carried in the second RRC reconfiguration message sent to the terminal. The purpose is the same as that of the second network and will not be described in detail.

[0172] In this way, the timer can prevent the terminal from frequently reporting the restricted capability set, avoid large overhead and unnecessary RRC reconfiguration, and save resources and optimize the process while ensuring that the terminal can successfully report the restricted capability set to the network.

[0173] In one embodiment, an optional example of a terminal capability notification method is provided, such as Figure 7 As shown, the specific process is as follows:

[0174] The first user identification card of the terminal is in a connected state, and the second user identification card of the terminal is in a deactivated state or an idle state:

[0175] S701: A first network sends a second RRC reconfiguration message for a first subscriber identity card to a terminal.

[0176] The second RRC reconfiguration message carries fourth indication information, and the fourth indication information is used to indicate that the terminal can report a set of restricted capabilities of the terminal. The second RRC reconfiguration message also carries the timing duration of the timer.

[0177] S702: The terminal sends a second RRC reconfiguration success message for the first user identity card to the first network.

[0178] S703: The second network sends a system message to the terminal.

[0179] The system message carries the first indication information, the first indication information is used to indicate that the terminal can send the second indication information during the RRC establishment or recovery process for the second user identification card, and the second indication information is used to indicate that the terminal capability is limited. It can be understood that the time when the network sends the system message to the terminal has nothing to do with the state of the user identification card of the terminal. This is only used as an example, and does not represent a limitation on the time when the second network sends the system message to the terminal.

[0180] S704: The terminal sends an RRC establishment or recovery request for the second subscriber identity card to the second network.

[0181] S705: The second network sends to the terminal information required for establishing or restoring the RRC for the second subscriber identity card.

[0182] S706: The terminal sends an RRC establishment or recovery completion message for the second subscriber identity card to the second network.

[0183] The RRC establishment or recovery completion message carries second indication information, and the second indication information is used to indicate that the terminal capability is limited.

[0184] The first user identification card and the second user identification card of the terminal are both in a connected state:

[0185] S707: The second network sends a first RRC reconfiguration message for the second subscriber identity card to the terminal.

[0186] The first RRC reconfiguration message carries third indication information, and the third indication information is used to indicate that the terminal can report a set of restricted capabilities of the terminal. The first RRC reconfiguration message also carries the timing duration of the timer.

[0187] S708: The terminal sends a first RRC reconfiguration success message for the second subscriber identity card to the second network.

[0188] S709: The terminal sends a terminal assistance message to the second network.

[0189] The terminal assistance message includes a set of restricted capabilities of the terminal, and the set of restricted capabilities of the terminal includes at least one of the current restricted capabilities and future potential restricted capabilities of the terminal. The terminal can send a terminal assistance message to the second network according to a timing duration to report the set of restricted capabilities of the terminal. For example, after sending the terminal assistance message to the second network, a capability reporting timer for the second network is started. Before the capability reporting timer times out, the terminal no longer sends a terminal assistance message to the second network.

[0190] S710: The second network determines whether to configure terminal capabilities.

[0191] S711. The terminal sends a terminal assistance message to the first network.

[0192] The terminal assistance message includes a set of restricted capabilities of the terminal, and the set of restricted capabilities of the terminal includes at least one of the current restricted capabilities and future potential restricted capabilities of the terminal. The terminal can send a terminal assistance message to the first network according to a timing duration to report the set of restricted capabilities of the terminal. For example, after sending the terminal assistance message to the first network, a capability reporting timer for the first network is started. Before the capability reporting timer times out, the terminal no longer sends a terminal assistance message to the first network.

[0193] S712: The first network determines whether to configure the terminal capability.

[0194] The specific process of the above steps can be found in the description of the above method embodiment. The implementation principles and technical effects are similar and will not be repeated here.

[0195] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0196] Based on the same inventive concept, the embodiment of the present application also provides a terminal capability notification device for implementing the terminal capability notification method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more terminal capability notification device embodiments provided below can refer to the limitations of the terminal capability notification method above, and will not be repeated here.

[0197] In one embodiment, Figure 8 As shown, a terminal capability notification device 1 is provided, comprising: a receiving module 10 and a sending module 20, wherein:

[0198] The first receiving module 10 is used to receive a system message sent by a second network to which a second subscriber identification card of the terminal belongs.

[0199] The first sending module 20 is used to send second indication information to the second network during the process of establishing or restoring radio resource control RRC for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state.

[0200] The second indication information is used to indicate that the terminal capability is limited.

[0201] In one embodiment, the first sending module 20 is specifically configured to send an RRC establishment or recovery completion message for the second subscriber identity card to the second network.

[0202] The RRC establishment or recovery completion message carries the second indication information.

[0203] In one embodiment, Figure 8 On the basis of Fig. 9 As shown, the terminal capability notification device 1 may further include:

[0204] The third receiving module 30 is configured to receive a first RRC reconfiguration message sent by the second network when both the first subscriber identity card and the second subscriber identity card are in a connected state.

[0205] The third sending module 40 is configured to send a restricted capability set of the terminal to the second network based on the third indication information in the first RRC reconfiguration message.

[0206] The restricted capability set of the terminal is used by the second network to determine whether to configure the terminal capability.

[0207] In an embodiment, the third sending module 40 is specifically configured to send a terminal assistance message carrying a restricted capability set of the terminal to the second network.

[0208] In one embodiment, Figure 8 On the basis of Fig.10 As shown, the terminal capability notification device 1 may further include:

[0209] The fourth receiving module 50 is configured to receive a second RRC reconfiguration message sent by a first network to which the first SIM card belongs when the first SIM card of the terminal is in a connected state and the second SIM card of the terminal is about to enter a connected state.

[0210] The fourth sending module 60 is configured to send a restricted capability set of the terminal to the first network based on the fourth indication information in the second RRC reconfiguration message when both the first user identification card and the second user identification card are in a connected state.

[0211] In an embodiment, the fourth sending module 60 is specifically configured to send a terminal assistance message carrying a restricted capability set of the terminal to the first network.

[0212] In one embodiment, the restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

[0213] In one embodiment, the restricted capability set includes at least one of potential band combination conflict, multiple-input multiple-output (MIMO) capability, and measurement period capability.

[0214] In one embodiment, the first RRC reconfiguration message carries a timing duration, and the third sending module 40 is specifically configured to send a terminal assistance message carrying a restricted capability set of the terminal to the second network according to the timing duration.

[0215] In one embodiment, the third sending module 40 is specifically used to send a terminal assistance message carrying a restricted capability set of the terminal to the second network and initialize a timer; if the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying a restricted capability set of the terminal to the second network again.

[0216] In one embodiment, the third sending module 40 is specifically used to send a terminal assistance message carrying a restricted capability set of the terminal to the second network according to the new timing duration if a new timing duration sent by the second network is received when the timer has not reached the timing duration.

[0217] In one embodiment, the second RRC reconfiguration message carries a timing duration, and the fourth sending module 60 is specifically configured to send a terminal assistance message carrying a restricted capability set of the terminal to the first network according to the timing duration.

[0218] In one embodiment, the fourth sending module 60 is specifically used to send a terminal assistance message carrying a restricted capability set of the terminal to the first network and initialize the timer; if the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying a restricted capability set of the terminal to the first network again.

[0219] In one embodiment, the fourth sending module 60 is specifically used to send a terminal assistance message carrying a restricted capability set of the terminal to the first network according to the new timing duration if a new timing duration sent by the first network is received when the timer has not reached the timing duration.

[0220] In one embodiment, Fig.11 As shown, a terminal capability notification device 2 is provided, comprising: a second sending module 10 and a second receiving module 20, wherein:

[0221] The second sending module 10 is used to send a system message to a terminal.

[0222] The system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the process of establishing or restoring the RRC for the second user identification card.

[0223] The second receiving module 20 is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first SIM card of the terminal is in the connected state and the second SIM card of the terminal is about to enter the connected state.

[0224] The second indication information is used to indicate that the terminal capability is limited.

[0225] In one embodiment, the second receiving module 20 is specifically configured to receive an RRC establishment or recovery completion message for the second subscriber identity card, which is sent by the terminal based on the first indication information in the system message.

[0226] The RRC establishment or recovery completion message carries the second indication information.

[0227] In one embodiment, Fig.11 On the basis of Fig.12 As shown, the terminal capability notification device 2 may further include:

[0228] The fifth sending module 30 is configured to send a first RRC reconfiguration message to the terminal when both the first subscriber identity card and the second subscriber identity card are in a connected state.

[0229] The fifth receiving module 40 is configured to receive a restricted capability set of the terminal sent by the terminal based on the third indication information in the first RRC reconfiguration message.

[0230] The restricted capability set of the terminal is used by the second network to determine whether to configure the terminal capability.

[0231] In one embodiment, the fifth receiving module 40 is specifically configured to receive a terminal assistance message sent by the terminal based on the third indication information in the first RRC reconfiguration message.

[0232] The terminal assistance message carries a set of restricted capabilities of the terminal.

[0233] In one embodiment, the restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

[0234] In one embodiment, the restricted capability set includes at least one of potential band combination conflict, multiple-input multiple-output (MIMO) capability, and measurement period capability.

[0235] In one embodiment, the first RRC reconfiguration message carries a timing duration, and the terminal capability notification device 2 may further include:

[0236] The response control module is used for not responding to the terminal assistance message if a terminal assistance message carrying a restricted capability set of the terminal is received from the terminal when the timer has not reached the timing duration.

[0237] Each module in the above-mentioned terminal capability notification device can be implemented in whole or in part by software, hardware and a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory in the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0238] In one embodiment, a communication device is provided, which includes a transmitter, a receiver, a processor and a memory, and the memory stores a computer program. The processor of the communication device is used to provide computing and control capabilities, and the processor implements the steps in the above-mentioned method embodiments when executing the computer program. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the communication device is used to communicate with an external terminal through a network connection.

[0239] In one embodiment, a communication device is provided, including a transmitter, a receiver, a processor and a memory, wherein the memory stores a computer program; the receiver is used to receive a system message sent by a second network to which a second user identification card of a terminal belongs; the transmitter is used to send second indication information to the second network during the process of establishing or restoring a radio resource control (RRC) for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0240] In one embodiment, a communication device is provided, including a transmitter, a receiver, a processor and a memory, wherein the memory stores a computer program; the transmitter is used to send a system message to a terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to a second network during RRC establishment or recovery of a second user identification card; the receiver is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited.

[0241] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps of the above-mentioned terminal capability notification method when executing the computer program.

[0242] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the terminal capability notification method are implemented.

[0243] In one embodiment, a computer program product is provided, including a computer program, which implements the steps of the above-mentioned terminal capability notification method when executed by a processor.

[0244] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0245] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0246] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A terminal capability notification method, characterized in that: Applied to terminals, including: receiving a system message sent by a second network to which a second user identification card of the terminal belongs; When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, based on the first indication information in the system message, in the process of establishing or restoring radio resource control RRC for the second user identification card, sending second indication information to the second network; wherein the second indication information is used to indicate that the terminal capability is limited; When both the first user identification card and the second user identification card are in a connected state, receiving a first RRC reconfiguration message sent by the second network; the first RRC reconfiguration message carries a timing duration; Based on the third indication information in the first RRC reconfiguration message, and according to the timing duration, the restricted capability set of the terminal is sent to the second network; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities, and measurement period capabilities.

2. The method according to claim 1, characterized in that The sending the second indication information to the second network includes: Sending an RRC establishment or recovery completion message for the second user identification card to the second network; wherein the RRC establishment or recovery completion message carries the second indication information.

3. The method according to claim 1, characterized in that The sending the restricted capability set of the terminal to the second network includes: Sending a terminal assistance message carrying the restricted capability set of the terminal to the second network.

4. The method according to claim 1, characterized in that: The method further comprises: When a first user identification card of the terminal is in a connected state and a second user identification card of the terminal is about to enter a connected state, receiving a second RRC reconfiguration message sent by a first network to which the first user identification card belongs; When both the first user identification card and the second user identification card are in a connected state, based on fourth indication information in the second RRC reconfiguration message, a restricted capability set of the terminal is sent to the first network.

5. The method according to claim 4, characterized in that The sending the restricted capability set of the terminal to the first network includes: Sending a terminal assistance message carrying the restricted capability set of the terminal to the first network.

6. The method according to any one of claims 3 to 5, characterized in that: The restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

7. The method according to claim 3, characterized in that The sending, according to the timing duration, to the second network a terminal assistance message carrying a restricted capability set of the terminal includes: Sending a terminal assistance message carrying a restricted capability set of the terminal to the second network, and initializing a timer; When the timing of the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the second network again.

8. The method according to claim 3, characterized in that The sending, according to the timing duration, to the second network a terminal assistance message carrying a restricted capability set of the terminal includes: When the timer does not reach the timing duration, if a new timing duration sent by the second network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the second network according to the new timing duration.

9. The method according to claim 5, characterized in that The second RRC reconfiguration message carries a timing duration, and the sending to the first network a terminal assistance message carrying a restricted capability set of the terminal includes: Sending a terminal assistance message carrying the restricted capability set of the terminal to the first network according to the timing duration.

10. The method according to claim 9, characterized in that The sending, according to the timing duration, to the first network a terminal assistance message carrying a restricted capability set of the terminal includes: Sending a terminal assistance message carrying a restricted capability set of the terminal to the first network, and initializing a timer; When the timing of the timer does not reach the timing duration, it is prohibited to send the terminal assistance message carrying the restricted capability set of the terminal to the first network again.

11. The method according to claim 9, characterized in that The sending, according to the timing duration, to the first network a terminal assistance message carrying a restricted capability set of the terminal includes: When the timer does not reach the timing duration, if a new timing duration sent by the first network is received, a terminal assistance message carrying the restricted capability set of the terminal is sent to the first network according to the new timing duration.

12. A terminal capability notification method, characterized in that: The second network to which the second user identification card of the terminal belongs includes: Sending a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card; When the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state, receiving second indication information sent by the terminal based on the first indication information in the system message; wherein the second indication information is used to indicate that the terminal capability is limited; When both the first user identification card and the second user identification card are in a connected state, sending a first RRC reconfiguration message to the terminal; the first RRC reconfiguration message carries a timing duration; Receive a restricted capability set of the terminal sent by the terminal based on the third indication information in the first RRC reconfiguration message and the timing duration; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities and measurement period capabilities.

13. The method according to claim 12, characterized in that The receiving second indication information sent by the terminal based on the first indication information in the system message includes: Receive an RRC establishment or recovery completion message for the second user identification card sent by the terminal based on the first indication information in the system message; wherein the RRC establishment or recovery completion message carries the second indication information.

14. The method according to claim 12, characterized in that Receiving a restricted capability set of the terminal sent by the terminal based on the third indication information in the first RRC reconfiguration message, including: Receive a terminal assistance message sent by the terminal based on the third indication information in the first RRC reconfiguration message; wherein the terminal assistance message carries a restriction capability set of the terminal.

15. The method according to claim 14, characterized in that The restriction capability set includes at least one of a current restriction capability and a future potential restriction capability of the terminal.

16. The method according to claim 14, characterized in that The first RRC reconfiguration message carries a timing duration, and the method further includes: In the case that the timing of the timer does not reach the timing duration, if a terminal assistance message carrying the restricted capability set of the terminal sent by the terminal is received, no response is made to the terminal assistance message.

17. A terminal capability notification device, characterized in that: include: A first receiving module, used for receiving a system message sent by a second network to which a second user identification card of the terminal belongs; A first sending module is configured to send second indication information to the second network in a process of establishing or restoring a radio resource control (RRC) for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited; A third receiving module is used to receive a first RRC reconfiguration message sent by the second network when both the first user identification card and the second user identification card are in a connected state; the first RRC reconfiguration message carries a timing duration; A third sending module is used to send the restricted capability set of the terminal to the second network based on the third indication information in the first RRC reconfiguration message and according to the timing duration; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capability; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities and measurement period capabilities.

18. A terminal capability notification device, characterized in that: include: A second sending module, configured to send a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card; A second receiving module is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited; A fifth sending module, configured to send a first RRC reconfiguration message to the terminal when both the first user identification card and the second user identification card are in a connected state; the first RRC reconfiguration message carries a timing duration; A fifth receiving module is used to receive a restricted capability set of the terminal sent by the terminal based on the third indication information in the first RRC reconfiguration message and the timing duration; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities and measurement period capabilities.

19. A communication device, characterized in that: include: a transmitter, a receiver, a processor and a memory, the memory storing a computer program; The receiver is used to receive a system message sent by a second network to which a second user identification card of the terminal belongs; The transmitter is used for sending second indication information to the second network in the process of establishing or restoring radio resource control RRC for the second user identification card based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited; The receiver is further configured to receive a first RRC reconfiguration message sent by the second network when both the first user identification card and the second user identification card are in a connected state; the first RRC reconfiguration message carries a timing duration; The transmitter is also used to send the restricted capability set of the terminal to the second network based on the third indication information in the first RRC reconfiguration message and according to the timing duration; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities and measurement period capabilities.

20. A communication device, characterized in that: include: a transmitter, a receiver, a processor and a memory, the memory storing a computer program; The transmitter is used to send a system message to the terminal; wherein the system message carries first indication information, and the first indication information is used to instruct the terminal to send second indication information to the second network during the RRC establishment or recovery process of the second user identification card; The receiver is used to receive second indication information sent by the terminal based on the first indication information in the system message when the first user identification card of the terminal is in a connected state and the second user identification card of the terminal is about to enter a connected state; wherein the second indication information is used to indicate that the terminal capability is limited; The transmitter is further configured to send a first RRC reconfiguration message to the terminal when both the first user identification card and the second user identification card are in a connected state; the first RRC reconfiguration message carries a timing duration; The receiver is also used to receive a restricted capability set of the terminal sent by the terminal based on the third indication information in the first RRC reconfiguration message and the timing duration; wherein the restricted capability set of the terminal is used for the second network to determine whether to configure the terminal capabilities; the restricted capability set includes at least one of potential frequency band combination conflicts, multiple-input multiple-output MIMO capabilities and measurement period capabilities.

21. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented.

22. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 16 are implemented.

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