Control method and device for connection recovery process, terminal and network side equipment

Abstract

The invention discloses a control method and device for a connection recovery process, a terminal and network side equipment, and belongs to the technical field of communication, and the method comprises the steps that UE in an RRC INACTIVE state enters an RRC IDLE state under the condition that a first condition is met; or, initiating RRC connection recovery, receiving an RRC recovery message, and executing the first operation; the first condition comprises at least one of the following items: the PCell is in a capability limited state; the SCG corresponding to the stored SCG configuration is in a capability limited state; an SCell corresponding to the SCell configuration in the stored MCG is in a capability limited state; the first operation comprises at least one of the following items: when the RRC recovery message comprises a first configuration and the UE cannot comply with part or all of information in the first configuration, the first configuration is not applied or a default configuration is applied; when an RRC recovery completion message is not successfully sent after the RRC recovery message is received, executing at least one of the following steps: initiating random access on the PCell; a scheduling request is sent on the PCell; and entering an RRC IDLE state.

Description

Technical Field

[0001] The present application belongs to the field of communication technology, and specifically relates to a control method, device, terminal and network-side equipment for a connection recovery process. Background Art

[0002] For multi-card terminals, if card 1 initiates radio resource control (RRC) connection recovery, card 2 is already in a connected state. Since card 1 and card 2 share certain radio frequencies / hardware, card 1 will be in a limited capacity state when initiating RRC connection recovery because part of its capabilities are occupied by card 2. Since the network does not know that card 1 is in a limited capacity state when sending the RRC recovery message, the network will send an RRC recovery message to card 1 according to the saved UE capabilities. At this time, the configuration carried in the RRC recovery message may exceed the current available capabilities of card 1, causing card 1 to enter the RRC IDLE state or transmission anomalies. After entering the RRC IDLE state, card 1 needs to perform cell selection and select a suitable cell to initiate the RRC connection establishment process, which will cause a large control plane delay. In this case, how to reasonably control the RRC connection recovery process is an urgent problem that needs to be solved. Summary of the invention

[0003] The embodiments of the present application provide a control method, apparatus, terminal and network-side equipment for a connection recovery process, which can solve the problem of how to reasonably control the RRC connection recovery process.

[0004] In a first aspect, a method for controlling a connection recovery process is provided, which is performed by a UE in an RRC INACTIVE state, the method comprising:

[0005] The UE enters an RRC idle state when the first condition is met; or the UE initiates an RRC connection recovery, receives an RRC recovery message, and performs a first operation according to the RRC recovery message;

[0006] The first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved SCell configuration in the MCG;

[0007] The first operation includes at least one of the following:

[0008] When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, the UE does not apply the first configuration, or applies a default configuration;

[0009] When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, the UE performs at least one of the following: initiating random access on the primary cell PCell; sending a scheduling request on the PCell; and entering an RRCIDLE state.

[0010] In a second aspect, a method for controlling a connection recovery process is provided, which is executed by a network side device, and the method includes:

[0011] A network side device sends an RRC recovery message to a UE; wherein the UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE is unable to comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

[0012] In a third aspect, a control device for a connection recovery process is provided, which is applied to a UE in an RRC INACTIVE state, including:

[0013] A control module, configured to control the UE to enter an RRC IDLE state when a first condition is met;

[0014] A first execution module, configured to initiate an RRC connection recovery, receive an RRC recovery message, and perform a first operation according to the RRC recovery message;

[0015] The first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved SCell configuration in the MCG;

[0016] The first operation includes at least one of the following:

[0017] When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, not applying the first configuration, or applying a default configuration;

[0018] When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; and controlling the UE to enter an RRC IDLE state.

[0019] In a fourth aspect, a control device for a connection recovery process is provided, which is applied to a network side device, including:

[0020] A first sending module is used to send an RRC recovery message to a UE; wherein the UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

[0021] In a fifth aspect, a terminal is provided, comprising a UE corresponding to a card therein, the UE comprising a processor and a memory, the memory storing programs or instructions that can be run on the processor; when the UE is in an RRCINACTIVE state, the program or instructions are executed by the processor to implement the steps of the method described in the first aspect.

[0022] In the sixth aspect, a terminal is provided, which includes a UE corresponding to a card therein, and the UE includes a processor and a communication interface; when the UE is in an RRC INACTIVE state, the processor is used to control the UE to enter an RRC IDLE state when a first condition is met; the communication interface is used to initiate RRC connection recovery and receive an RRC recovery message; the processor is also used to perform a first operation according to the RRC recovery message; the first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the SCell configuration in the saved MCG; the first operation includes at least one of the following: when the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied, or a default configuration is applied; when the UE fails to successfully send an RRC recovery completion message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; entering the RRC IDLE state.

[0023] In the seventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0024] In the eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the communication interface is used to send an RRC recovery message to a UE; the UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

[0025] In a ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0026] In the tenth aspect, a wireless communication system is provided, including: a terminal and a network side device, which can be used to execute the steps of the method described in the first aspect when the UE corresponding to the card in the terminal is in the RRC INACTIVE state; the network side device can be used to execute the steps of the method described in the second aspect.

[0027] In the eleventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instructions to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0028] In the twelfth aspect, a computer program / program product is provided, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0029] By applying the solution in the present application to a multi-card terminal, a UE in an RRC INACTIVE state (corresponding to a card in a multi-card terminal) can handle the RRC connection recovery process according to different situations, such as when the UE is in a limited capability state on the primary cell or the cell corresponding to its stored SCG configuration or the SCell configuration in the MCG, entering the RRC IDLE state, or initiating RRC connection recovery, receiving an RRC recovery message, and performing a first operation according to the RRC recovery message, the first operation including at least one of the following: when the UE cannot comply with part or all of the configuration in the RRC recovery message, not applying the configuration or applying the default configuration; when the RRC recovery completion message is not successfully sent after receiving the RRC recovery message, initiating random access on the PCell, sending a scheduling request on the PCell, or entering the RRC IDLE state. In this way, the RRC connection recovery process can be reasonably controlled, and the control plane delay of the multi-card terminal initiating RRC connection recovery / establishment can be shortened to a certain extent, thereby improving the user experience of the multi-card terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a block diagram of a wireless communication system to which the embodiments of the present application can be applied;

[0031] Figure 2 is a flow chart of a method for controlling a connection recovery process provided by an embodiment of the present application;

[0032] Figure 3 is a flow chart of a method for controlling a connection recovery process provided by an embodiment of the present application;

[0033] Figure 4 It is a structural schematic diagram of a control device for a connection recovery process provided in an embodiment of the present application;

[0034] Figure 5 is a structural schematic diagram of another control device for a connection recovery process provided in an embodiment of the present application;

[0035] Figure 6 It is a structural diagram of a communication device provided in an embodiment of the present application;

[0036] Figure 7 is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0037] Figure 8 It is a structural diagram of a network side device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

[0039] The terms "first", "second", etc. of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of one type, and the number of objects is not limited, for example, the first object can be one or more. In addition, "or" in the present application represents at least one of the connected objects. For example, "A or B" covers three schemes, namely, Scheme 1: including A but not including B; Scheme 2: including B but not including A; Scheme 3: including both A and B. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0040] The term "indication" in this application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, operations to be performed, or request results in the sent indication; an indirect indication can be understood as the receiver determining the corresponding information according to the indication sent by the sender, or making a judgment and determining the operation to be performed or the request result according to the judgment result.

[0041] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following descriptions, but these technologies can also be applied to systems other than NR systems, such as the 6th generation (6 th Generation, 6G) communication system.

[0042] Figure 1A block diagram of a wireless communication system applicable to an embodiment of the present application is shown. The wireless communication system includes a terminal 11 and a network side device 12. Among them, the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (Ultra-mobile Personal Computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR), a virtual reality (Virtual Reality, VR) device, a robot, a wearable device (Wearable Device), an aircraft (flight vehicle), a vehicle-mounted device (Vehicle User Equipment, VUE), a ship-mounted device, a pedestrian terminal (Pedestrian User Equipment, PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (Personal Computer, PC), a teller machine or a self-service machine and other terminal side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be referred to as a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (Wireless Local Area Network, WLAN) access point (Access Point, AP) or a wireless fidelity (Wireless Fidelity, WiFi) node, etc.Among them, the base station can be called Node B (Node B, NB), Evolved Node B (Evolved Node B, eNB), the next generation Node B (the next generation Node B, gNB), New Radio Node B (New Radio Node B, NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (Base Transceiver Station, BTS), radio base station, radio transceiver, Basic Service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), home Node B (home evolved Node B, HNB), home evolved Node B (home evolved Node B), Transmission Reception Point (Transmission Reception Point, TRP) or other appropriate terms in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary.

[0043] In order to facilitate understanding of the embodiments of the present application, the following contents are first described.

[0044] Dual Connectivity (DC) / Carrier Aggregation (CA): Dual connectivity provides the resources of two network nodes for the User Equipment (UE), one of which is called the Master Node (MN) and the other is called the Secondary Node (SN). At each network node, the carrier aggregation (CA) technology can also be used, that is, a series of service cells controlled by the network node are configured for the UE, and these service cells form a cell group. The cell group controlled by the master node MN is the Master Cell Group (MCG), and the cell group controlled by the secondary node SN is the Secondary Cell Group (SCG). Each cell group contains a special cell (SpCell) and a series of secondary cells (SCell). The special cell in the MCG is called the Primary Cell (PCell), and the special cell in the SCG is called the Primary Secondary Cell (PSCell).

[0045] For a UE in Radio Resource Control (RRC) inactive state, RRC connection recovery can be initiated if one of the following conditions is met:

[0046] - RAN paging received;

[0047] -RNAU (RAN Notification Area Update);

[0048] - The upper layer requests to initiate RRC connection recovery.

[0049] Multi-USIM terminals refer to terminals with more than one SIM card installed. Taking dual-SIM terminals as an example, according to whether the terminal supports simultaneous transmission or reception in the networks of two SIM cards, dual-SIM terminals can be divided into single-transmit and single-receive terminals, single-transmit and dual-receive terminals, and dual-transmit and dual-receive terminals, as explained below:

[0050] Single-transmitter and single-receiver terminal: The implementation method of the terminal (such as two cards sharing the same hardware or radio frequency) results in the terminal only being able to send and receive information alternately on the networks of the two cards in a time-division manner;

[0051] Single-transmit dual-receive terminal: The terminal can only perform uplink transmission alternately on the networks of two cards in a time-division manner, but supports downlink reception on the networks of two cards at the same time.

[0052] Dual-transmit and dual-receive terminal: The terminal supports uplink transmission and downlink reception on two card networks at the same time.

[0053] It should be noted that the card in the embodiments of the present application includes a SIM card, a Universal Subscriber Identity Module (USIM), etc.

[0054] In conjunction with the accompanying drawings, the control method, apparatus, terminal and network-side equipment of the connection recovery process provided by the embodiments of the present application are described in detail below through some embodiments and their application scenarios.

[0055] See also Figure 2 , Figure 2 is a flow chart of a control method for a connection recovery process provided in an embodiment of the present application, the method being executed by a user equipment (User Equipment, UE) in an RRC INACTIVE state, such as Figure 2 As shown, the method comprises the following steps:

[0056] Step 21: When the first condition is met, the UE enters the RRC IDLE state; or, the UE initiates an RRC connection recovery, receives an RRC recovery message, and performs a first operation according to the RRC recovery message.

[0057] In one implementation, the UE may correspond to a card (such as a Subscriber Identity Module (SIM) card) in a multi-card terminal.

[0058] It can be understood that a multi-card terminal can correspond to multiple UEs, and each UE is a logical entity with 4G, 5G and / or next-generation wireless communication capabilities corresponding to a Subscriber Identity Module (SIM) card.

[0059] Optionally, the first condition may include at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved SCell configuration in the MCG. For example, if the SCG configuration saved by the UE or the SCell configuration in the MCG cannot be applied due to its limited capability, the RRC IDLE state may be entered.

[0060] Optionally, the PCell may be understood as a primary cell of the UE, or a serving cell in which the UE currently resides, or a cell in which the UE receives paging, or a cell in which the UE initiates an RRC connection.

[0061] Optionally, when the first condition is met, the trigger condition for the existing RRC connection recovery must also be met. When the first condition is met, the UE enters the RRC IDLE state including:

[0062] The UE enters the RRC IDLE state when the second condition is satisfied and the first condition is satisfied; the second condition includes but is not limited to at least one of the following:

[0063] RAN paging is received;

[0064] RAN notification area update;

[0065] The upper layer requests to initiate RRC connection recovery.

[0066] Optionally, when the triggering condition for RRC connection recovery is met (such as the second condition mentioned above) and the first condition is not met (such as the capability of the PCell / SCell / SCG of the UE is not in a restricted state), the UE initiates the RRC connection recovery process. Optionally, when the first condition is met but the second condition is not met, the UE does not enter the RRC IDLE state.

[0067] Optionally, when the first condition and the second condition are met, the UE initiates an RRC connection recovery process. Upon receiving an RRC recovery message, if the PCell configuration in the RRC recovery message exceeds the current capability of the UE on the PCell, the UE enters an RRC IDLE state.

[0068] Optionally, the first operation includes but is not limited to at least one of the following:

[0069] When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, that is, the UE cannot comply with part or all of the configuration in the RRC recovery message, or part or all of the configuration in the RRC recovery message exceeds the capability of the UE, the first configuration is not applied, or a default configuration is applied;

[0070] When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; and entering an RRC IDLE state.

[0071] Optionally, the reason why the UE cannot comply with part or all of the information in the first configuration includes at least one of the following: multi-card operation; the UE is in a limited capability state. The multi-card operation can be understood as multiple cards of the terminal where the UE is located are in a working state at the same time.

[0072] Optionally, the reason why the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message includes: the UE is unable to comply with the configuration in the RRC recovery message due to multi-card operation or limited UE capability. That is, the reason / prerequisite why the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message includes: the UE is unable to comply with the configuration in the RRC recovery message due to multi-card operation or limited UE capability. The multi-card operation can be understood as multiple cards of the terminal where the UE is located being in working state at the same time.

[0073] Optionally, the UE failing to successfully send an RRC recovery complete message after receiving the RRC recovery message may include at least one of the following:

[0074] The UE fails to successfully send an RRC recovery complete message within a first time after receiving the RRC recovery message; the first time may be preset, network configured, or agreed upon by a protocol, and is not limited thereto;

[0075] The number of times that the UE fails to send an RRC recovery completion message after receiving the RRC recovery message reaches a preset number; the preset number can be preset, network configured, or agreed upon by a protocol, etc., and is not limited to this.

[0076] By applying the solution in the present application to a multi-card terminal, a UE in an RRC INACTIVE state (corresponding to a card in a multi-card terminal) can handle the RRC connection recovery process according to different situations, such as when the UE is in a limited capability state on the primary cell or the cell corresponding to its stored SCG configuration or the SCell configuration in the MCG, entering the RRC IDLE state, or initiating RRC connection recovery, receiving an RRC recovery message, and performing a first operation according to the RRC recovery message, the first operation including at least one of the following: when the UE cannot comply with part or all of the configuration in the RRC recovery message, not applying the configuration or applying the default configuration; when the RRC recovery completion message is not successfully sent after receiving the RRC recovery message, initiating random access on the PCell, sending a scheduling request on the PCell, or entering the RRC IDLE state. In this way, the RRC connection recovery process can be reasonably controlled, and the control plane delay of the multi-card terminal initiating RRC connection recovery / establishment can be shortened to a certain extent, thereby improving the user experience of the multi-card terminal.

[0077] Optionally, the UE corresponds to a card in a multi-card terminal. If the UEs corresponding to other cards in the multi-card terminal are in a connected state, the UE can obtain some terminal capabilities held by the UEs corresponding to the other cards, thereby initiating an RRC connection recovery process when the capabilities are not restricted.

[0078] Optionally, when the UE enters the RRC IDLE state, the UE may set an RRC release cause value, where the RRC release cause value includes at least one of the following:

[0079] RRC connection recovery failed;

[0080] RRC connection recovery failure caused by multi-card operation;

[0081] RRC connection recovery failure caused by UE capabilities being limited.

[0082] Optionally, the first configuration may include but is not limited to at least one of the following:

[0083] SCell configuration in MCG;

[0084] SCell configuration in SCG;

[0085] SCG configuration;

[0086] Multiple-Input Multiple-Output (MIMO) configuration;

[0087] Bandwidth configuration;

[0088] SCell state configuration in MCG;

[0089] SCell state configuration in SCG;

[0090] SCG status configuration;

[0091] Instruction information for instructing the UE to restore the saved SCell configuration in the MCG;

[0092] Instruction information instructing the UE to restore the maintained SCG configuration;

[0093] Measurement configuration.

[0094] Optionally, when the first configuration is not applied, the UE may report the unapplied first configuration to the network side device.

[0095] Optionally, the default configuration may include but is not limited to at least one of the following:

[0096] Default Layer 1 (L1) configuration;

[0097] Default Medium Access Control (MAC) cell group configuration;

[0098] A default signaling radio bearer (SRB) configuration, such as a default SRB1 configuration.

[0099] Optionally, when the UE does not apply the first configuration, the control method in the embodiment of the present application may further include:

[0100] The UE sends a first RRC recovery completion message; the first RRC recovery completion message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied. Thus, the network side can be informed that the UE has not applied the relevant configuration, thereby ensuring correct scheduling.

[0101] Optionally, the first indication information may also be used to indicate that the UE is in a capability-limited state. Thus, the network side may be informed of the reason why the UE does not apply the relevant configuration.

[0102] Optionally, the first indication information may also be used to indicate a first configuration that has not been applied.

[0103] Optionally, for some configurations in the existing RRC recovery message, such as SCG configuration, the UE will report the response of the SCG according to the prior art, so if this response does not appear in the RRC recovery complete message, the first indication information can be indirectly indicated. That is, for some first configurations, the UE can indirectly implement the first indication information by not carrying the corresponding response information in the RRC recovery complete message, so in some cases the first indication information may not appear in the RRC recovery complete message.

[0104] Optionally, the control method in the embodiment of the present application may further include:

[0105] The UE reports the first capability information; the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all configurations in the RRC recovery message, indicating whether the UE supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied. In this way, the network side can be informed of the UE capability, thereby ensuring normal scheduling.

[0106] Optionally, when the UE applies a default configuration, the control method in the embodiment of the present application may further include:

[0107] The UE sends a second RRC recovery complete message; the second RRC recovery complete message includes second indication information, and the second indication information is used to indicate that the UE applies a default configuration after receiving the RRC recovery message. Thus, the network side can know that the UE applies a default configuration, thereby ensuring correct scheduling.

[0108] Optionally, the control method in the embodiment of the present application may further include:

[0109] The UE reports the second capability information; the second capability information is used for at least one of the following: indicating whether the UE supports applying a default configuration when a part or all of the configuration in the RRC recovery message cannot be followed, and indicating whether the UE supports indicating in the RRC recovery complete message that the UE applies the default configuration. In this way, the network side can be informed of the UE capability, thereby ensuring normal scheduling.

[0110] Optionally, the control method of the connection recovery process may further include:

[0111] The UE receives the fourth indication information or the fifth indication information sent by the network side device; wherein the fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part of the configuration or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that part of the configuration or all of the configuration in the RRC recovery message is not applied; the fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it cannot comply with part of the configuration or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that the UE applies the default configuration. In this way, the network side can control the relevant behaviors of the UE, thereby ensuring the normal interaction between the UE and the network side.

[0112] Optionally, when the fourth indication information and the fifth indication information indicate that the UE is not allowed to perform related actions, the UE may enter the RRC IDLE state when it is unable to comply with part or all of the configuration in the RRC recovery message.

[0113] Optionally, the fourth indication information may be carried via a system message or dedicated signaling, and the dedicated signaling may be an RRC release message or an RRC resume message.

[0114] Optionally, the fifth indication information may be carried via a system message or dedicated signaling, and the dedicated signaling may be an RRC release message or an RRC resume message.

[0115] In the embodiment of the present application, the network side may indicate the supported behaviors, so as to facilitate the UE to know. The control method of the connection recovery process may also include:

[0116] The UE receives third indication information sent by the network side device; the third indication information is used to indicate whether the network side device supports performing a second operation, where the second operation includes at least one of the following:

[0117] Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell;

[0118] Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective;

[0119] After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1;

[0120] After the scheduling failure reaches a first duration, scheduling transmission on the PCell;

[0121] After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1;

[0122] After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

[0123] In this way, the UE can be informed of the behaviors supported by the network side, thereby ensuring normal communication.

[0124] Optionally, the first duration and the second duration mentioned above may be preset, configured in the network, or agreed upon in a protocol, etc., and are not limited thereto.

[0125] Optionally, the third indication information may be carried via a system message or dedicated signaling, and the dedicated signaling may be an RRC release message or an RRC resume message.

[0126] See also Figure 3 , Figure 3 is a flow chart of a control method for a connection recovery process provided by an embodiment of the present application, the method being executed by a network side device, such as Figure 3 As shown, the method comprises the following steps:

[0127] Step 31: The network side device sends an RRC recovery message to the UE.

[0128] In an embodiment of the present application, the UE is in an RRC INACTIVE state. The UE may correspond to a card (such as a SIM card) in a multi-card terminal. The RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

[0129] As a result, the UE can apply the default configuration, thereby shortening the control plane delay of the multi-card terminal initiating RRC connection recovery to a certain extent, and improving the user experience of the multi-card terminal.

[0130] Optionally, the first configuration may include but is not limited to at least one of the following:

[0131] SCell configuration in MCG;

[0132] SCell configuration in SCG;

[0133] SCG configuration;

[0134] MIMO configuration;

[0135] Bandwidth configuration;

[0136] SCell state configuration in MCG;

[0137] SCell state configuration in SCG;

[0138] SCG status configuration;

[0139] Instruction information for instructing the UE to restore the saved SCell configuration in the MCG;

[0140] Instruction information instructing the UE to restore the maintained SCG configuration;

[0141] Measurement configuration.

[0142] Optionally, when the UE does not apply the first configuration, the control method in the embodiment of the present application may further include:

[0143] The network side device receives a first RRC recovery completion message sent by the UE; the first RRC recovery completion message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied. Thus, the network side can be informed that the UE has not applied the relevant configuration, thereby ensuring correct scheduling.

[0144] Optionally, the first indication information may also be used to indicate that the UE is in a capability-limited state. Thus, the network side may be informed of the reason why the UE does not apply the relevant configuration.

[0145] Optionally, the first indication information may also be used to indicate a first configuration that has not been applied.

[0146] Optionally, the control method in the embodiment of the present application may further include:

[0147] The network side device receives the first capability information reported by the UE; the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all configurations in the RRC recovery message, indicating whether the UE supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied. In this way, the network side can be informed of the UE capability, thereby ensuring normal scheduling.

[0148] Optionally, when the UE applies a default configuration, the control method in the embodiment of the present application may further include:

[0149] The network side device receives the second RRC recovery completion message sent by the UE; the second RRC recovery completion message includes second indication information, and the second indication information is used to indicate that the UE applies the default configuration after receiving the RRC recovery message. Thus, the network side device can know that the UE applies the default configuration, thereby ensuring correct scheduling.

[0150] Optionally, the default configuration includes at least one of the following:

[0151] Default L1 configuration;

[0152] Default MAC cell group configuration;

[0153] Default SRB1 configuration.

[0154] Optionally, the control method in the embodiment of the present application may further include:

[0155] The network side device receives the second capability information reported by the UE; the second capability information is used for at least one of the following: indicating whether the UE supports applying the default configuration when it cannot comply with part or all of the configuration in the RRC recovery message, indicating whether the UE supports indicating in the RRC recovery complete message that the UE applies the default configuration. In this way, the network side can be informed of the UE capability, thereby ensuring normal scheduling.

[0156] Optionally, the control method in the embodiment of the present application may further include:

[0157] The network side device sends the fourth indication information or the fifth indication information to the UE; wherein the fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that part or all of the configuration in the RRC recovery message is not applied; the fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it cannot comply with part or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that the UE applies the default configuration. In this way, the network side can control the relevant behaviors of the UE, thereby ensuring the normal interaction between the UE and the network side.

[0158] Optionally, the fourth indication information may be carried by a system message or a dedicated signaling, that is, the third indication information is sent by a system message or a dedicated signaling. The dedicated signaling may be an RRC release message or an RRC resume message.

[0159] Optionally, the fifth indication information may be carried by a system message or a dedicated signaling, that is, the third indication information is sent by a system message or a dedicated signaling. The dedicated signaling may be an RRC release message or an RRC resume message.

[0160] Optionally, the control method in the embodiment of the present application may further include:

[0161] The network-side device performs a second operation, wherein the second operation includes at least one of the following:

[0162] Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell;

[0163] Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective;

[0164] After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1;

[0165] After the scheduling failure reaches a first duration, scheduling transmission on the PCell;

[0166] After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1;

[0167] After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

[0168] Because the network side does not know whether the UE applies the first configuration or the default configuration before receiving the RRC recovery completion message, the possibility of successful scheduling can be improved by performing the second operation.

[0169] Optionally, the network-side device performs the second operation only for multi-card terminals and / or terminals supporting capability changes.

[0170] Optionally, the control method in the embodiment of the present application may further include:

[0171] The network side device sends third indication information to the UE; the third indication information is used to indicate whether the network side device supports the execution of a second operation, and the second operation is specifically as described above. In this way, the UE can be informed of the behavior supported by the network side, thereby ensuring normal communication.

[0172] Optionally, the first duration and the second duration mentioned above may be preset, configured in the network, or agreed upon in a protocol, etc., and are not limited thereto.

[0173] Optionally, the third indication information may be carried by a system message or a dedicated signaling, that is, the third indication information is sent by a system message or a dedicated signaling. The dedicated signaling may be an RRC release message or an RRC resume message.

[0174] The present application is described in detail below with reference to specific embodiments.

[0175] Embodiment 1

[0176] In the first embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the control process of the connection recovery process may include:

[0177] Step 1: UE1 receives paging; at this time, UE2 is in RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state.

[0178] Step 2: If the capability of the serving cell (PCell) currently being camped on by UE1 is limited or lower than the default capability, UE1 enters the RRC IDLE state; otherwise, UE1 initiates the RRC connection recovery process. Specifically, after UE1 enters the RRC IDLE state, it performs the RRC connection establishment process according to the existing process.

[0179] Step 3: UE1 initiates the RRC connection recovery procedure on the current serving cell.

[0180] Step 4: UE1 sends an RRC recovery request message.

[0181] Step 5: UE1 receives the RRC recovery message. If UE1 (optionally, due to limited capabilities or multi-SIM operation) cannot comply with any SCell configuration or SCG configuration in the RRC recovery message, UE1 does not apply all SCell configurations and SCG configurations.

[0182] Step 6: If UE1 does not apply all SCell configurations and SCG configurations in the RRC recovery message, UE1 sends an RRC recovery complete message, which carries first indication information (e.g., 1 bit) indicating that all SCell configurations and SCG configurations in the RRC recovery message have not been applied / successfully applied. Optionally, the first indication information may also implicitly indicate that UE1 is in a limited capability state, that is, UE1 does not need to send an early indication.

[0183] Optionally, UE1 may report first capability information to indicate whether UE1 supports not applying some or all configurations in the RRC recovery message, and / or whether UE1 supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied.

[0184] Optionally, if UE1 fails to successfully send the RRC recovery complete message within a period of time, UE1 may perform one of the following:

[0185] - Initiate random access or send scheduling request on PCell;

[0186] -Enter RRC IDLE state.

[0187] For the above process, from the perspective of the network side, before receiving the first indication information, the network side does not know whether UE1 has applied the SCell configuration and SCG configuration. Therefore, the network side device can only schedule the transmission on the PCell before receiving the RRC recovery completion message sent by UE1, or only the default PCell configuration is effective, or try to schedule the transmission on the PCell after the scheduling fails N times, or try to schedule the transmission on the PCell after the scheduling failure reaches a certain duration. In addition, the network side can indicate to UE1 whether it supports the execution of the above network operations through system messages or dedicated signaling. The dedicated signaling can be an RRC release message or an RRC resume message.

[0188] Optionally, the network side device may indicate to UE1 through a system message or dedicated signaling whether UE1 is allowed not to apply part or all of the configuration in the RRC recovery message, and / or whether UE1 is allowed to indicate in the RRC recovery complete message that part or all of the configuration in the RRC recovery message is not applied. The dedicated signaling may be an RRC release message or an RRC resume message. If not allowed, UE1 may enter the RRC IDLE state when it cannot comply with the configuration in the RRC recovery message.

[0189] Embodiment 2

[0190] In the second embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the control process of the connection recovery process may include:

[0191] Step 1: UE1 receives paging; at this time, UE2 is in RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state.

[0192] Step 2: UE1 initiates the RRC recovery procedure on the current serving cell;

[0193] Step 3: UE1 sends an RRC recovery request;

[0194] Step 4: UE1 receives the RRC recovery message. If UE1 (optionally, due to limited capabilities or multi-SIM operation) cannot comply with some of the configurations in the RRC recovery message, UE1 applies the default configuration.

[0195] Step 5: When UE1 applies the default configuration, UE1 sends an RRC recovery complete message, which carries second indication information, indicating that after receiving the RRC recovery message, UE1 applies the default configuration. Optionally, the default configuration may include at least one of a default L1 configuration, a default MAC cell group configuration, and a default SRB1 configuration.

[0196] Optionally, UE1 may report second capability information, indicating whether UE1 supports applying a default configuration when it cannot comply with part or all of the configuration in the RRC recovery message, and / or indicating whether UE1 supports indicating in the RRC recovery complete message that it applies the default configuration.

[0197] Optionally, if UE1 fails to successfully send the RRC recovery complete message within a period of time, UE1 may perform one of the following:

[0198] - Initiate random access or send scheduling request on PCell;

[0199] -Enter RRC IDLE state.

[0200] For the above process, from the perspective of the network side, before receiving the second indication information, the network side does not know whether UE1 has applied the default configuration. Therefore, the network side device can schedule UE1 based on the default configuration after M scheduling failures, or schedule UE1 based on the default configuration after the scheduling failure reaches a certain duration. Furthermore, the network only performs the above network operations for multi-card terminals and / or terminals that support capability changes. The network side can indicate to UE1 whether it supports the execution of the above network operations through system messages or dedicated signaling. The dedicated signaling can be an RRC release message or an RRCresume message.

[0201] Optionally, the network side device may indicate to UE1 through a system message or dedicated signaling whether to allow UE1 to apply the default configuration when it is unable to comply with part or all of the configuration in the RRC recovery message, and / or whether to allow UE1 to indicate in the RRC recovery complete message that UE1 applies the default configuration. The dedicated signaling may be an RRC release message or an RRC resume message. If not allowed, UE1 may enter the RRC IDLE state when it is unable to comply with the configuration in the RRC recovery message.

[0202] Embodiment 3

[0203] In the third embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the relevant RRC connection recovery process includes:

[0204] Step 1: UE1 receives a paging call; at this time, UE2 is in the RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state;

[0205] Step 2: The multi-SIM terminal transfers part of the terminal capabilities from UE2 back to UE1, so that UE1 can initiate the RRC connection recovery process without limiting the capabilities.

[0206] Embodiment 4

[0207] In the fourth embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the related control operations include:

[0208] Step 1: UE1 receives a paging call; at this time, UE2 is in the RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state;

[0209] Step 2: If the MCG SCell and SCG configurations saved by UE 1 cannot be applied due to limited capabilities, UE 1 enters the RRC IDLE state.

[0210] Embodiment 5

[0211] In the fifth embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the control process of the connection recovery process may include:

[0212] Step 1: UE1 receives paging; at this time, UE2 is in RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state.

[0213] Step 2: UE1 initiates the RRC recovery procedure on the current serving cell;

[0214] Step 3: UE1 sends an RRC recovery request;

[0215] Step 4: UE1 receives the RRC resume message and starts the first timer. The duration of the first timer can be determined by protocol agreement or network configuration (e.g., broadcast message configuration, or dedicated signaling configuration such as RRC resume / release message configuration). During the operation of the first timer, UE1 stops the first timer after successfully sending the RRC resume complete message (e.g., receiving confirmation from RLC that the message was successfully sent). After the first timer times out, UE1 enters the RRC IDLE state.

[0216] Embodiment 6

[0217] In the sixth embodiment, UE1 corresponds to card 1, UE2 corresponds to card 2, and card 1 and card 2 are located in the same terminal, that is, in a multi-card terminal; the control process of the connection recovery process may include:

[0218] Step 1: UE1 receives paging; at this time, UE2 is in RRC connected state and is occupying part of the terminal capacity / RF hardware, so UE1 is in a capacity-limited state.

[0219] Step 2: UE1 initiates the RRC recovery procedure on the current serving cell;

[0220] Step 3: UE1 sends an RRC recovery request;

[0221] Step 4: UE1 receives an RRC recovery message. If the PCell configuration in the RRC recovery message exceeds the UE capability of UE1 on the currently residing serving cell (PCell), UE1 enters the RRC IDLE state; otherwise, UE1 sends an RRC recovery completion message.

[0222] The control method of the connection recovery process provided in the embodiment of the present application can be executed by a control device of the connection recovery process. In the embodiment of the present application, the control method of the connection recovery process performed by the control device of the connection recovery process is taken as an example to illustrate the control device of the connection recovery process provided in the embodiment of the present application.

[0223] See also Figure 4 , Figure 4 is a structural diagram of a control device for a connection recovery process provided in an embodiment of the present application, the device is applied to a UE in an RRC INACTIVE state, such as Figure 4 As shown, the control device 40 of the connection recovery process may include:

[0224] A control module 41, configured to control the UE to enter an RRC IDLE state when a first condition is met;

[0225] A first execution module 42, configured to initiate an RRC connection recovery, receive an RRC recovery message, and perform a first operation according to the RRC recovery message;

[0226] The first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved SCell configuration in the MCG;

[0227] The first operation includes at least one of the following:

[0228] When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, not applying the first configuration, or applying a default configuration;

[0229] When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; and controlling the UE to enter an RRC IDLE state.

[0230] Optionally, the first configuration includes at least one of the following:

[0231] SCell configuration in MCG;

[0232] SCell configuration in SCG;

[0233] SCG configuration;

[0234] Multiple-input and multiple-output MIMO configuration;

[0235] Bandwidth configuration;

[0236] SCell state configuration in MCG;

[0237] SCell state configuration in SCG;

[0238] SCG status configuration;

[0239] Instruction information for instructing the UE to restore the saved SCell configuration in the MCG;

[0240] Instruction information instructing the UE to restore the maintained SCG configuration;

[0241] Measurement configuration.

[0242] Optionally, the control module 41 is specifically configured to: when a second condition is satisfied and the first condition is satisfied, control the UE to enter the RRC IDLE state; the second condition includes at least one of the following:

[0243] Receiving a radio access network RAN ​​paging;

[0244] RAN notification area update;

[0245] The upper layer requests to initiate RRC connection recovery.

[0246] Optionally, the reason why the UE cannot comply with part or all of the information in the first configuration includes at least one of the following:

[0247] Multi-card operation;

[0248] The UE is in a capability-limited state.

[0249] Optionally, the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, including: the UE is unable to comply with the configuration in the RRC recovery message due to multi-card operation or limited UE capability.

[0250] Optionally, the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, including at least one of the following:

[0251] The UE fails to successfully send an RRC recovery complete message within the first time after receiving the RRC recovery message;

[0252] The number of times that the UE fails to send an RRC recovery complete message after receiving the RRC recovery message reaches a preset number.

[0253] Optionally, when the UE does not apply the first configuration, the first execution module 42 is further used to: send a first RRC recovery completion message; the first RRC recovery completion message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied.

[0254] Optionally, the first indication information is also used to indicate that the UE is in a capability-limited state.

[0255] Optionally, the control device 40 for the connection recovery process further includes:

[0256] A first reporting module is used to report first capability information; the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all configurations in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied.

[0257] Optionally, when the UE applies the default configuration, the first execution module 42 is also used to: send a second RRC recovery completion message; wherein the second RRC recovery completion message includes second indication information, and the second indication information is used to indicate that the UE applies the default configuration after receiving the RRC recovery message.

[0258] Optionally, the default configuration includes at least one of the following:

[0259] Default L1 configuration;

[0260] Default Media Access Control MAC cell group configuration;

[0261] Default signaling radio bearer SRB1 configuration.

[0262] Optionally, the control device 40 for the connection recovery process further includes:

[0263] The second reporting module is used to report the second capability information; the second capability information is used for at least one of the following: indicating whether the UE supports the application of the default configuration when it is unable to comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery completion message that the UE applies the default configuration.

[0264] Optionally, the control device 40 for the connection recovery process further includes:

[0265] The first receiving module is used to receive the fourth indication information or the fifth indication information sent by the network side device; wherein the fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part of the configuration or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that part of the configuration or all of the configuration in the RRC recovery message is not applied; the fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it is unable to comply with part of the configuration or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that the UE applies the default configuration.

[0266] Optionally, the control device 40 for the connection recovery process further includes:

[0267] The second receiving module is configured to receive third indication information sent by the network side device; the third indication information is used to indicate whether the network side device supports executing a second operation, and the second operation includes at least one of the following:

[0268] Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell;

[0269] Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective;

[0270] After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1;

[0271] After the scheduling failure reaches a first duration, scheduling transmission on the PCell;

[0272] After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1;

[0273] After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

[0274] Optionally, the control device 40 for the connection recovery process further includes:

[0275] The setting module is used to set an RRC release cause value when the UE enters the RRC IDLE state, and the RRC release cause value includes at least one of the following:

[0276] RRC connection recovery failed;

[0277] RRC connection recovery failure caused by multi-card operation;

[0278] RRC connection recovery failure caused by UE capabilities being limited.

[0279] The control device 40 for the connection recovery process provided in the embodiment of the present application can achieve Figure 2 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0280] See also Figure 5 , Figure 5 is a schematic diagram of a control device for a connection recovery process provided in an embodiment of the present application, and the device is applied to a network side device, such as Figure 5 As shown, the control device 50 of the connection recovery process may include:

[0281] The first sending module 51 is used to send an RRC recovery message to the UE; wherein the UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

[0282] Optionally, the first configuration includes at least one of the following:

[0283] SCell configuration in MCG;

[0284] SCell configuration in SCG;

[0285] SCG configuration;

[0286] MIMO configuration;

[0287] Bandwidth configuration;

[0288] SCell state configuration in MCG;

[0289] SCell state configuration in SCG;

[0290] SCG status configuration;

[0291] Instruction information for instructing the UE to restore the saved SCell configuration in the MCG;

[0292] Instruction information instructing the UE to restore the maintained SCG configuration;

[0293] Measurement configuration.

[0294] Optionally, the control device 50 for the connection recovery process further includes:

[0295] The third receiving module is used to receive a first RRC recovery completion message sent by the UE; the first RRC recovery completion message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied.

[0296] Optionally, the first indication information is also used to indicate that the UE is in a capability-limited state.

[0297] Optionally, the control device 50 for the connection recovery process further includes:

[0298] The fourth receiving module is used to receive the first capability information reported by the UE; wherein the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all of the configurations in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery complete message that some or all of the configurations in the RRC recovery message are not applied.

[0299] Optionally, the control device 50 for the connection recovery process further includes:

[0300] The fifth receiving module is used to receive a second RRC recovery completion message sent by the UE; wherein the second RRC recovery completion message includes second indication information, and the second indication information is used to indicate that the UE applies a default configuration after receiving the RRC recovery message.

[0301] Optionally, the default configuration includes at least one of the following:

[0302] Default L1 configuration;

[0303] Default MAC cell group configuration;

[0304] Default SRB1 configuration.

[0305] Optionally, the control device 50 for the connection recovery process further includes:

[0306] The sixth receiving module is used to receive the second capability information reported by the UE; wherein the second capability information is used for at least one of the following: indicating whether the UE supports the application of the default configuration when it is unable to comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery completion message that the UE applies the default configuration.

[0307] Optionally, the control device 50 for the connection recovery process further includes:

[0308] The second sending module is used to send fourth indication information or fifth indication information to the UE; wherein the fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part of the configuration or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that part of the configuration or all of the configuration in the RRC recovery message is not applied; the fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it is unable to comply with part of the configuration or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that the UE applies the default configuration.

[0309] Optionally, the control device 50 for the connection recovery process further includes:

[0310] The second execution module is configured to execute a second operation, wherein the second operation includes at least one of the following:

[0311] Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell;

[0312] Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective;

[0313] After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1;

[0314] After the scheduling failure reaches a first duration, scheduling transmission on the PCell;

[0315] After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1;

[0316] After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

[0317] Optionally, the control device 50 for the connection recovery process further includes:

[0318] The third sending module is configured to send third indication information to the UE; wherein the third indication information is used to indicate whether the network side device supports performing a second operation, and the second operation includes at least one of the following:

[0319] Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell;

[0320] Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective;

[0321] After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1;

[0322] After the scheduling failure reaches a first duration, scheduling transmission on the PCell;

[0323] After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1;

[0324] After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

[0325] The control device 50 for the connection recovery process provided in the embodiment of the present application can achieve Figure 3 The various processes implemented by the method embodiment and achieving the same technical effect are not described here to avoid repetition.

[0326] like Figure 6 As shown, the embodiment of the present application further provides a communication device 60, including a processor 61 and a memory 62, the memory 62 stores a program or instruction that can be run on the processor 61, for example, when the communication device 60 is a UE in the RRCINACTIVE state, the program or instruction is executed by the processor 61 to implement the above Figure 2 The steps of the control method embodiment of the connection recovery process shown in the figure can achieve the same technical effect. When the communication device 60 is a network side device, the program or instruction is executed by the processor 61 to implement the above Figure 3 The various steps of the control method embodiment of the connection recovery process shown can achieve the same technical effect. To avoid repetition, they will not be described here.

[0327] The embodiment of the present application also provides a terminal, the terminal includes a UE corresponding to a card therein, the UE includes a processor and a communication interface, the communication interface and the processor are coupled; when the UE is in an RRC INACTIVE state, the processor is used to run a program or instruction to implement the following Figure 2 The steps in the method embodiment shown. This terminal embodiment corresponds to the above UE side method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this terminal embodiment and can achieve the same technical effect.

[0328] Specifically, Figure 7 A schematic diagram of the hardware structure of a terminal for implementing an embodiment of the present application.

[0329] The terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709 and at least some of the components of a processor 710.

[0330] Those skilled in the art will appreciate that the terminal 700 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 710 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 7 The terminal structure shown in the figure does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0331] It should be understood that in the embodiment of the present application, the input unit 704 may include a graphics processing unit (GPU) 7041 and a microphone 7042, and the graphics processor 7041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 707 includes a touch panel 7071 and at least one of other input devices 7072. The touch panel 7071 is also called a touch screen. The touch panel 7071 may include two parts: a touch detection device and a touch controller. Other input devices 7072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control button, a switch button, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0332] In the embodiment of the present application, after receiving downlink data from the network side device, the RF unit 701 can transmit the data to the processor 710 for processing; in addition, the RF unit 701 can send uplink data to the network side device. Generally, the RF unit 701 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0333] The memory 709 can be used to store software programs or instructions and various data. The memory 709 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 709 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 709 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0334] The processor 710 may include one or more processing units; optionally, the processor 710 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 710.

[0335] In the embodiment of the present application, the terminal 700 is a multi-card terminal. When the UE corresponding to the card in the terminal 700 is in the RRCINACTIVE state, the processor 710 can be used to control the UE to enter the RRC IDLE state when the first condition is met; the first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the SCell configuration in the saved MCG;

[0336] The radio frequency unit 701 may be used to initiate an RRC connection recovery and receive an RRC recovery message; the processor 710 may also be used to: perform a first operation according to the RRC recovery message; the first operation includes at least one of the following:

[0337] When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, not applying the first configuration, or applying a default configuration;

[0338] When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; and controlling the UE to enter an RRC IDLE state.

[0339] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the above Figure 2 The relevant descriptions of the method embodiments shown in the figure achieve the same or corresponding technical effects, and will not be repeated here to avoid repetition.

[0340] The embodiment of the present application also provides a network side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the following Figure 3 The steps of the method embodiment shown. This network side device embodiment corresponds to the above network side device method embodiment, and each implementation process and implementation mode of the above method embodiment can be applied to this network side device embodiment and can achieve the same technical effect.

[0341] Specifically, the embodiment of the present application also provides a network side device. Figure 8As shown, the network side device 80 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 84 and a memory 85. The antenna 81 is connected to the radio frequency device 82. In the uplink direction, the radio frequency device 82 receives information through the antenna 81 and sends the received information to the baseband device 83 for processing. In the downlink direction, the baseband device 83 processes the information to be sent and sends it to the radio frequency device 82. The radio frequency device 82 processes the received information and sends it out through the antenna 81.

[0342] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 83, which includes a baseband processor.

[0343] The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are arranged. Figure 8 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 85 through a bus interface to call the program in the memory 85 to execute the network device operations shown in the above method embodiment.

[0344] The network side device may further include a network interface 86, which is, for example, a Common Public Radio Interface (CPRI).

[0345] Specifically, the network side device 80 of the embodiment of the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 84, and the processor 84 calls the instructions or programs in the memory 85 to execute. Figure 6 The methods executed by the modules shown achieve the same technical effects, and therefore will not be described here in detail to avoid repetition.

[0346] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the control method embodiment of the above-mentioned connection recovery process is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0347] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0348] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the control method embodiment of the above-mentioned connection recovery process, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0349] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0350] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the control method embodiment of the above-mentioned connection recovery process, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0351] The embodiment of the present application also provides a wireless communication system, including: a terminal and a network side device, when the UE corresponding to the card in the terminal is in the RRC INACTIVE state, it can be used to perform the above Figure 2 The steps of the control method described above; the network side device can be used to perform the above Figure 3 The steps of the control method.

[0352] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0353] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general hardware platform, and of course, can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, disk, CD, etc.), including several instructions to enable a terminal or a network-side device to execute the methods described in each embodiment of the present application.

[0354] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of the present application and the scope of protection of the claims, and these implementation methods are all within the protection of the present application.

Claims

1. A method for controlling a connection recovery process, characterized in that: The method is performed by a user equipment UE, the UE is in a radio resource control RRC inactive INACTIVE state, and the method includes: The UE enters an RRC idle state when the first condition is met; or the UE initiates an RRC connection recovery, receives an RRC recovery message, and performs a first operation according to the RRC recovery message; The first condition includes at least one of the following: the UE is in a capability-restricted state on the primary cell PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved secondary cell group SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved secondary cell SCell configuration in the primary cell group MCG; The first operation includes at least one of the following: When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, the UE does not apply the first configuration, or applies a default configuration; When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, the UE performs at least one of the following: initiating random access on the primary cell PCell; sending a scheduling request on the PCell; and entering an RRC IDLE state.

2. The method according to claim 1, characterized in that The first configuration includes at least one of the following: SCell configuration in MCG; SCell configuration in SCG; SCG configuration; Multiple-input and multiple-output MIMO configuration; Bandwidth configuration; SCell state configuration in MCG; SCell state configuration in SCG; SCG status configuration; Instruction information for instructing the UE to restore the saved SCell configuration in the MCG; Instruction information instructing the UE to restore the maintained SCG configuration; Measurement configuration.

3. The method according to claim 1 or 2, characterized in that: The UE enters the RRC IDLE state when the first condition is met, including: The UE enters the RRC IDLE state when the second condition is satisfied and the first condition is satisfied; wherein the second condition includes at least one of the following: Receiving a radio access network RAN ​​paging; RAN notification area update; The upper layer requests to initiate RRC connection recovery.

4. The method according to claim 1, characterized in that: The reason why the UE cannot comply with part or all of the information in the first configuration includes at least one of the following: Multi-card operation; The UE is in a capability-limited state.

5. The method according to claim 1, characterized in that The UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, including: the UE cannot comply with the configuration in the RRC recovery message due to multi-card operation or limited UE capability.

6. The method according to claim 1 or 5, characterized in that: The UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, including at least one of the following: The UE fails to successfully send an RRC recovery complete message within a first time after receiving the RRC recovery message; The number of times that the UE fails to send an RRC recovery complete message after receiving the RRC recovery message reaches a preset number.

7. The method according to claim 1 or 2, characterized in that: When the UE does not apply the first configuration, the method further includes: The UE sends a first RRC recovery complete message; wherein the first RRC recovery complete message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied.

8. The method according to claim 7, characterized in that The first indication information is also used to indicate that the UE is in a capability-limited state.

9. The method according to claim 7 or 8, characterized in that: The method further comprises: The UE reports first capability information; Among them, the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all configurations in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied.

10. The method according to claim 1, characterized in that When the UE applies a default configuration, the method further includes: The UE sends a second RRC recovery complete message; wherein the second RRC recovery complete message includes second indication information, and the second indication information is used to indicate that the UE applies a default configuration after receiving the RRC recovery message.

11. The method according to claim 1 or 10, characterized in that: The default configuration includes at least one of the following: Default layer 1L1 configuration; Default Media Access Control MAC cell group configuration; Default signaling radio bearer SRB1 configuration.

12. The method according to claim 10 or 11, characterized in that: The method further comprises: The UE reports second capability information; Among them, the second capability information is used for at least one of the following: indicating whether the UE supports applying the default configuration when it is unable to comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery completion message that the UE applies the default configuration.

13. The method according to any one of claims 1 to 12, characterized in that: The method further comprises: The UE receives fourth indication information or fifth indication information sent by the network side device; The fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part of the configuration or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that part of the configuration or all of the configuration in the RRC recovery message is not applied; The fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it cannot comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that the UE applies the default configuration.

14. The method according to any one of claims 1 to 13, characterized in that: The method further comprises: The UE receives third indication information sent by the network side device; The third indication information is used to indicate whether the network-side device supports executing a second operation, and the second operation includes at least one of the following: Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell; Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective; After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1; After the scheduling failure reaches a first duration, scheduling transmission on the PCell; After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1; After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

15. The method according to claim 1, characterized in that When the UE enters the RRC IDLE state, the method further includes: The UE sets an RRC release cause value, where the RRC release cause value includes at least one of the following: RRC connection recovery failed; RRC connection recovery failure caused by multi-card operation; RRC connection recovery failure caused by UE capabilities being limited.

16. A method for controlling a connection recovery process, characterized in that: include: The network side device sends an RRC recovery message to the UE; The UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

17. The method according to claim 16, characterized in that The first configuration includes at least one of the following: SCell configuration in MCG; SCell configuration in SCG; SCG configuration; MIMO configuration; Bandwidth configuration; SCell state configuration in MCG; SCell state configuration in SCG; SCG status configuration; Instruction information for instructing the UE to restore the saved SCell configuration in the MCG; Instruction information instructing the UE to restore the maintained SCG configuration; Measurement configuration.

18. The method according to claim 16 or 17, characterized in that The method further comprises: The network side device receives a first RRC recovery completion message sent by the UE; wherein the first RRC recovery completion message includes first indication information, and the first indication information is used to indicate that the first configuration is not applied.

19. The method according to claim 18, characterized in that The first indication information is also used to indicate that the UE is in a capability-limited state.

20. The method according to claim 18 or 19, characterized in that The method further comprises: The network side device receives the first capability information reported by the UE; Among them, the first capability information is used for at least one of the following: indicating whether the UE supports not applying some or all configurations in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery complete message that some or all configurations in the RRC recovery message are not applied.

21. The method according to claim 16 or 17, characterized in that The method further comprises: The network side device receives a second RRC recovery completion message sent by the UE; wherein the second RRC recovery completion message includes second indication information, and the second indication information is used to indicate that the UE applies a default configuration after receiving the RRC recovery message.

22. The method according to claim 16 or 21, characterized in that The default configuration includes at least one of the following: Default L1 configuration; Default MAC cell group configuration; Default SRB1 configuration.

23. The method according to claim 21 or 22, characterized in that The method further comprises: The network side device receives the second capability information reported by the UE; Among them, the second capability information is used for at least one of the following: indicating whether the UE supports applying the default configuration when it is unable to comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE supports indicating in the RRC recovery completion message that the UE applies the default configuration.

24. The method according to any one of claims 16 to 23, characterized in that The method further comprises: The network side device sends fourth indication information or fifth indication information to the UE; The fourth indication information is used for at least one of the following: indicating whether the UE is allowed to not apply part of the configuration or all of the configuration in the RRC recovery message, indicating whether the UE is allowed to indicate in the RRC recovery complete message that part of the configuration or all of the configuration in the RRC recovery message is not applied; The fifth indication information is used for at least one of the following: indicating whether the UE is allowed to apply the default configuration when it cannot comply with part or all of the configuration in the RRC recovery message, and indicating whether the UE is allowed to indicate in the RRC recovery completion message that the UE applies the default configuration.

25. The method according to any one of claims 16 to 24, characterized in that The method further comprises: The network side device performs a second operation; The second operation includes at least one of the following: Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell; Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective; After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1; After the scheduling failure reaches a first duration, scheduling transmission on the PCell; After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1; After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

26. The method according to any one of claims 16 to 25, characterized in that The method further comprises: The network side device sends third indication information to the UE; The third indication information is used to indicate whether the network-side device supports executing a second operation, and the second operation includes at least one of the following: Before receiving an RRC recovery complete message from the UE, only scheduling transmission on the PCell; Before receiving the RRC recovery complete message of the UE, only the default PCell configuration is effective; After scheduling fails N times, scheduling transmission on the PCell, where N is an integer greater than or equal to 1; After the scheduling failure reaches a first duration, scheduling transmission on the PCell; After scheduling fails M times, scheduling the UE based on a default configuration, where M is an integer greater than or equal to 1; After the scheduling failure reaches a second duration, the UE is scheduled based on a default configuration.

27. A control device for a connection recovery process, characterized in that: The device is applied to a UE in an RRC INACTIVE state, and the device includes: A control module, configured to control the UE to enter an RRC IDLE state when a first condition is met; A first execution module, configured to initiate an RRC connection recovery, receive an RRC recovery message, and perform a first operation according to the RRC recovery message; The first condition includes at least one of the following: the UE is in a capability-restricted state on the PCell; the UE is in a capability-restricted state on the SCG corresponding to the saved SCG configuration; the UE is in a capability-restricted state on the SCell corresponding to the saved SCell configuration in the MCG; The first operation includes at least one of the following: When the RRC recovery message includes a first configuration and the UE cannot comply with part or all of the information in the first configuration, not applying the first configuration, or applying a default configuration; When the UE fails to successfully send an RRC recovery complete message after receiving the RRC recovery message, at least one of the following is performed: initiating random access on the PCell; sending a scheduling request on the PCell; and controlling the UE to enter an RRC IDLE state.

28. A control device for a connection recovery process, characterized in that: The device is applied to a network side device, and the device includes: A first sending module is used to send an RRC recovery message to a UE; wherein the UE is in an RRC INACTIVE state; the RRC recovery message includes a first configuration; when the UE cannot comply with part or all of the information in the first configuration, the first configuration is not applied by the UE.

29. A terminal, characterized in that: The terminal includes a UE corresponding to a card therein, the UE includes a processor and a memory, the memory stores a program or instruction that can be run on the processor; when the UE is in an RRC INACTIVE state, the program or instruction is executed by the processor to implement the steps of the control method of the connection recovery process as described in any one of claims 1 to 15.

30. A network side device, characterized in that: It includes a processor and a memory, the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the control method of the connection recovery process as described in any one of claims 16 to 26 are implemented.

31. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, it implements the steps of the control method of the connection recovery process as described in any one of claims 1 to 15, or implements the steps of the control method of the connection recovery process as described in any one of claims 16 to 26.

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