Cell group processing method, device and communication device

Abstract

The present application discloses a cell group processing method, an apparatus, and a communication apparatus. The method comprises the step of performing a target process that requests the recovery of at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a suspended state and the master cell group (MCG) of the terminal fails.

Description

Technology Field

[0001] The present application relates to the field of communication technology, and more specifically to a cell group processing method, apparatus, and communication apparatus.

[0002] Cross-citation of related applications

[0003] This application claims priority to Chinese Patent Application No. 202010569115.8 filed in China on June 19, 2020, and incorporates all of its contents. Background Technology

[0004] Currently, the Secondary Cell Group (SCG) can be used for rapid recovery when the Master Cell Group (MCG) fails, but this is contingent on the SCG not being stopped.

[0005] However, in conventional technology, there is currently no relevant solution to achieve cell group recovery when the MCG fails while the SCG is in a stopped state. The problem to be solved

[0006] The embodiments of the present application aim to provide a cell group processing method, device, and communication device capable of solving the cell group recovery problem when the MCG fails while the SCG is in a stopped state. means of solving the problem

[0007] The technical solution according to the present application for solving the aforementioned technical problem is as follows.

[0008] In the first aspect, it is applied to a terminal,

[0009] A cell group processing method is provided, comprising the step of performing a target process that requests the recovery of at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a suspended state and the master cell group (MCG) of the terminal fails.

[0010] In the second aspect, it is applied to the first network node, and

[0011] A cell group processing method is provided, comprising the step of performing a target process to recover at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a stopped state and the master cell group (MCG) of the terminal fails.

[0012] In the third aspect, it is applied to the second network node, and

[0013] A cell group processing method is provided, comprising the step of transmitting SCG stop configuration information to a terminal.

[0014] In the fourth aspect, applied to the terminal,

[0015] A cell group processing device is provided, comprising: a first execution module that performs a target process requesting recovery of at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a suspended state and the master cell group (MCG) of the terminal fails.

[0016] In the fifth aspect, it is applied to the first network node, and

[0017] A cell group processing device is provided, comprising: a second execution module that performs a target process to recover at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a stopped state and the master cell group (MCG) of the terminal fails.

[0018] In the sixth aspect, it is applied to the second network node, and

[0019] A cell group processing device is provided, comprising a third transmission module that transmits SCG stop configuration information to a terminal.

[0020] In the seventh aspect, a communication device is provided comprising: a processor; a memory; and a program or instruction stored in the memory and executable by the processor, wherein when the program or instruction is executed by the processor, a step of a cell group processing method according to the first aspect, the second aspect, or the third aspect is implemented.

[0021] In the eighth aspect, a readable storage medium is provided that stores a program or instruction in which, when executed by a processor, a step of the method according to the first aspect, the second aspect, or the third aspect is implemented.

[0022] In the ninth aspect, a chip is provided that includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor executes a program or instruction to implement a method according to the first aspect, the second aspect, or the third aspect.

[0023] According to an embodiment of the present application, when the secondary cell group (SCG) of the terminal is in a suspended state, if the master cell group (MCG) of the terminal fails, a target process is performed to request the recovery of at least one of the SCG and MCG of the terminal. Through this, it can be seen that the embodiment of the present application can resolve the cell group recovery problem when the MCG fails while the SCG is in a suspended state, thereby satisfying the terminal's demand for large-capacity data transmission. Brief explanation of the drawing

[0024] FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied. FIG. 2 is a flowchart (1) of a cell group processing method according to an embodiment of the present application. FIG. 3 is a flowchart (2) of a cell group processing method according to an embodiment of the present application. FIG. 4 is a flowchart (3) of a cell group processing method according to an embodiment of the present application. FIG. 5 is a structural diagram (1) of a cell group processing device according to an embodiment of the present application. FIG. 6 is a structural diagram (2) of a cell group processing device according to an embodiment of the present application. FIG. 7 is a structural diagram (3) of a cell group processing device according to an embodiment of the present application. FIG. 8 is a structural diagram (1) of a communication device according to an embodiment of the present application. FIG. 9 is a structural diagram (2) of a communication device according to an embodiment of the present application. Specific details for implementing the invention

[0025] Hereinafter, a technical solution according to an embodiment of the present application will be described clearly and completely with reference to the attached drawings. Of course, the described embodiment is merely a part of the embodiment, not the entire embodiment of the present application. Based on the embodiment of the present application, all other embodiments obtained by a person skilled in the art without creative effort will fall within the scope of protection of the present application.

[0026] In the specification and claims of this application, terms such as "first," "second," etc., are used to distinguish similar objects and are not used to describe a specific order or sequence. Data used in this manner may be exchanged in appropriate circumstances so that embodiments of this application may be performed in a different order than those shown or described herein. Furthermore, it should be understood that objects distinguished as "first" and "second" are generally of the same type, and there is no limit to the number of objects; for example, the first object may be one or multiple. Additionally, in the specification and claims, the term "and / or" refers to at least one of the connected objects, and the character " / " generally indicates that the preceding and subsequent related objects are in an "or" relationship.

[0027] The technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-A (Advanced) systems and may 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), and other systems. In the embodiments of this application, the terms "system" and "network" are often used interchangeably, and the described technology may be applicable to the aforementioned systems and wireless technologies or to other systems and wireless technologies. However, the following description describes a New Radio (NR) system for illustrative purposes, and while the term NR is used throughout most of the description below, this technology is 6th generation (6 th It can also be applied to applications other than NR system applications, such as Generation, 6G) communication systems.

[0028] FIG. 1 illustrates a block diagram of a wireless communication system to which an embodiment of the present application may be applied. The wireless communication system includes a terminal (11) and a network node (12). Here, the terminal (11) is also referred to as a terminal device or User Equipment (UE), and the terminal (11) may be a mobile phone, a tablet personal computer, a laptop computer or notebook computer, a Personal Digital Assistant (PDA), a palmtop, a netbook, an ultra-mobile personal computer (UMPC), a Mobile Internet Device (MID), a wearable device, a vehicle-mounted device (VUE), a pedestrian terminal (PUE), etc., and wearable devices include bracelets, earphones, glasses, etc. It should be noted that the embodiment of the present application does not limit the specific type of terminal (11). A network node (12) may be a base station or a core network, where the base station may be called Node B, Evolved Node B, access point, BTS (Base Transceiver Station), wireless base station, wireless transceiver, BSS (Basic Service Set), ESS (Extended Service Set), Node B, eNB (Evolved Node B), Home Node B, Home eNB, WLAN access point, WiFi (Wireless Fidelity) Node, Transmitting Receive Point (TRP), or other appropriate term in the field, and the base station is not limited to a specific technical term as long as the same technical effect is achieved.

[0029] Hereinafter, for the convenience of understanding, some details related to the embodiments of the present application will be explained.

[0030] 1. Dual Connectivity (DC), Carrier Aggregation (CA).

[0031] The DC provides the UE with the resources of two network nodes (e.g., access network elements), one of which is called the Master Node (MN) and the other is called the Secondary Node (SN). CA technology is used at each network node, meaning that a series of serving cells, also known as a Cell Group, is configured for the UE and controlled by this node. The one controlled by Mn is the Master Cell Group (MCG), and the one controlled by SN is the Secondary Cell Group (SCG). Each cell group contains one Special Cell (SpCell) and a series of Secondary Cells (Scell). In the MCG, the Special Cell is called the Primary Cell (PCell), and in the SCG, the Special Cell is called the Primary Secondary Cell (PSCell). In a cell group, SpCell uses the primary carrier and other secondary cells use the secondary carrier, and resource scheduling in a cell group is performed by SpCell.

[0032] 2. Suspension of SCG

[0033] If the UE determines that the SCG has failed, it can automatically stop the SCG and report the SCG failure information to the MN node.

[0034] The UE can also suspend the SCG under network control; for example, if the UE transmits a low data volume for an extended period, the network can temporarily suspend the SCG instead of directly deleting it and re-adding it when transmitting a large data volume. Temporarily suspending the SCG allows the terminal to operate in a more power-saving manner for longer periods while simultaneously enabling rapid restoration of the SCG during periods of high data demand.

[0035] In an embodiment of the present application, when the terminal's SCG is in a suspended state, the terminal can reduce power consumption by disconnecting the connection with the SCG, and when the terminal's SCG is restored, the terminal can satisfy the terminal's data transmission demand by performing data transmission through the SCG by re-establishing the connection with the SCG. Similarly, when the terminal's MCG is in a suspended state, the terminal can reduce power consumption by disconnecting the connection with the MCG, and when the terminal's MCG is restored, the terminal can satisfy the terminal's data transmission demand by performing data transmission through the MCG by re-establishing the connection with the MCG.

[0036] Hereinafter, a cell group processing method according to an embodiment of the present application will be described in detail through specific embodiments and application scenarios with reference to the attached drawings.

[0037] Referring to FIG. 2, FIG. 2 is a flowchart (1) of a cell group processing method according to an embodiment of the present application. The cell group processing method according to an embodiment of the present application may be applied to a terminal. Furthermore, the terminal may operate in a Multi-RAT Dual Connectivity (MR-DC) mode while in an RRC connection state, but is not limited thereto.

[0038] As illustrated in FIG. 2, the cell group processing method applied to the terminal is,

[0039] If the secondary cell group (SCG) of the terminal is in a stopped state, the method may include a step (S201) of performing a target process that requests the recovery of at least one of the SCG and MCG of the terminal when the master cell group (MCG) of the terminal fails.

[0040] In an embodiment of the present application, the failure of the MSG of the terminal can be considered as a trigger condition for the terminal to perform a target process.

[0041] The above target process may be used for any one of the SCG recovery request of the terminal, the MCG recovery request of the terminal, or the SCG and MCG recovery requests. In actual application, the above target process may be configured on the network side or defined by a protocol.

[0042] It should be noted that the embodiments of the present application do not limit the trigger conditions for triggering the SCG of the terminal to a stopped state. In implementation, the terminal may actively trigger the SCG to a stopped state or passively trigger the SCG to a stopped state.

[0043] Optionally, the above trigger condition is,

[0044] If the SCG of the above terminal fails,

[0045] It may include, but is not limited to, at least one of the cases where instruction information indicating that the SCG is in a suspended state is received by the terminal.

[0046] In addition, in an embodiment of the present application, the terminal can determine whether the MCG has failed by detecting whether communication between the terminal and the network side is normal. Specifically, the terminal can determine that the MCG has failed if it detects that a problem has occurred in communication between the terminal and the network side.

[0047] Optionally, a problem with communication between the terminal and the network side is,

[0048] In the event that the wireless link between the terminal and the MN fails,

[0049] If the terminal switch fails,

[0050] If the terminal detects that the signaling transmitted by Signaling Radio Bearer (SRB) 1 or SRB 2 has failed to protect its integrity,

[0051] If the terminal discovers that it cannot execute an RRC reconfiguration command transmitted from the network side, at least one of the following may be included, but is not limited thereto.

[0052] Furthermore, the failure of the wireless link between the terminal and the MN may include at least one of the following: when the terminal detects that the quality of the downlink wireless link on the network side is lower than a preset threshold; when the terminal Media Access Control (MAC) layer RACH fails even after attempting up to the maximum number of times; or when the terminal Radio Link Control (RLC) layer AM (Acknowledged Mode, AM) retransmission reaches the maximum number of times.

[0053] The reason why the RRC reconfiguration command transmitted from the network side, discovered by the above terminal, cannot be executed may include, but is not limited to, that the value of the parameter after reconfiguration exceeds the hardware capability of the terminal.

[0054] According to the cell group processing method of the present embodiment, when the secondary cell group (SCG) of the terminal is in a suspended state, if the master cell group (MCG) of the terminal fails, a target process is performed to request the recovery of at least one of the SCG and MCG of the terminal. Through this, it can be seen that the embodiment of the present application can resolve the cell group recovery problem when the MCG fails while the SCG is in a suspended state, thereby satisfying the terminal's demand for large-capacity data transmission.

[0055] In embodiments of the present application, the target process may be any process requesting the recovery of at least one of the SCG and MCG of the terminal, and embodiments of the present application do not limit the specific representation format of the target process. Optionally, the target process may be at least one of a radio resource control (RRC) re-establishment process and an SCG recovery process.

[0056] In an embodiment of the present application, optionally, if the target process is an SCG recovery process, the step of performing the target process is,

[0057] The method comprises the step of transmitting an SCG recovery request message to a first network node, the message including at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal, and a cause value in which the terminal performs the target process, such as MCG failure or MCG fast recovery;

[0058] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0059] In this optional embodiment, the terminal may request the recovery of at least one of the terminal's SCG and MCG by transmitting an SCG recovery request message to the first network node.

[0060] The above SCG recovery request message may include, but is not limited to, at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal, and a cause value in which the terminal performs the target process, such as MCG failure or MCG rapid recovery.

[0061] Below, we will explain the contents returned in response to the above SCG recovery request message.

[0062] 1) First identification information, second identification information, or third identification information indicating the recovery of the SCG of the terminal.

[0063] The first identification information, the second identification information, and the third identification information can all be used to indicate the recovery of the SCG of the terminal. Thus, when any one of the first identification information, the second identification information, and the third identification information is obtained, the first network node can know that the SCG recovery request message was used to request the recovery of at least one of the SCG and SCG of the terminal.

[0064] In the present optional embodiment, the second identification information is obtained by dividing the first identification information by a second network node, and the third identification information is obtained by dividing the first identification information by a terminal. In other words, both the second identification information and the third identification information can be obtained by dividing the first identification information, but the second identification information is generated by the second network node, and the third identification information is generated by the terminal. The second identification information and the third identification information may be considered as identification information in a divided form of the first identification information.

[0065] In implementation, the first identification information and the second identification information may be configured by a second network node, and the third identification information may be generated autonomously by a terminal.

[0066] In the first embodiment, the second network node may configure only the first identification information.

[0067] In a second embodiment, the second network node can simultaneously configure the first identification information and the second identification information.

[0068] For example, in an LTE (Long Term Evolution) system, the second network node may configure only the first identification information, and in an NR system, the second network node may configure the first identification information and the second identification information simultaneously.

[0069] In the case of the first embodiment described above, the terminal can generate third identification information, and in the case of the second embodiment described above, since the second network node is configured with the second identification information, the terminal can generate the third identification information.

[0070] In the present optional embodiment, if the SCG recovery request message includes first identification information, second identification information, or third identification information for indicating SCG recovery of the terminal, the terminal may determine the identification information to be returned to the SCG recovery request message as follows.

[0071] Detecting whether the number of bits that can be returned in the above SCG recovery request message is greater than a second threshold, and

[0072] If the number of bits that can be returned to the above SCG recovery request message is greater than the above second threshold, it is determined to return the first identification information to the above SCG recovery request message, and

[0073] If the number of bits that can be returned to the above SCG recovery request message is less than or equal to the second threshold, it is determined to return the second identification information or the third identification information to the above SCG recovery request message.

[0074] Furthermore, if the number of bits that can be returned to the SCG recovery request message is less than or equal to the second threshold, the second network node detects whether the second identification information is configured; if the second identification information is configured to the second network node, it is determined to return the second identification information to the SCG recovery request message, and otherwise, the terminal determines to generate third identification information and return the second identification information to the SCG recovery request message.

[0075] 2) A cause value in which the terminal performs the target process, which is an MCG failure or MCG fast recovery.

[0076] As can be seen from the foregoing, in the embodiment of the present application, since the target process is triggered by the failure of the terminal's MCG, if the SCG recovery request message includes a cause value in which the terminal performs the target process, the cause value can directly indicate that it is an MCG failure or an MCG fast recovery. Thus, when the cause value is obtained, the network node can know that the SCG recovery request message was used to request the recovery of at least one of the terminal's SCG and SCG.

[0077] In the optional embodiment, the SCG recovery process may be implemented through a RACH process or a Scheduling Request (SR) process, but is not limited thereto. Furthermore, the RACH process may be a four-stage RACH process or a two-stage RACH process.

[0078] If the above SCG recovery process is recovered through the RACH process, in the case of the 4th stage RACH process, the above SCG recovery request message may be returned to Message (Message, Msg) 3 of the 4th stage RACH process, and in the case of the 2nd stage RACH process, the above SCG recovery request message may be returned to Msg A of the 2nd stage RACH process. If the above SCG recovery process is recovered through the SR process, the above SCG recovery request message may be returned to the SR request message of the SR process.

[0079] In the manner described above, the terminal can request the recovery of at least one of the SCG and MCG of the terminal by transmitting an SCG recovery request message to the first network node, and it can be seen that the procedure for recovering at least one of the SCG and MCG of the terminal is standardized.

[0080] In an embodiment of the present application, optionally, after the step of transmitting the SCG recovery request message to a first network node, the method,

[0081] The method further includes the step of receiving a response message for the SCG recovery request message from the first network node;

[0082] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0083] In implementation, after receiving an SCG recovery request message from a terminal, the first network node may transmit a response message to the terminal regarding the SCG recovery request message, indicating whether the terminal is allowed to recover at least one of the SCG and MCG.

[0084] If the above SCG recovery process is recovered through the RACH process, in the case of the 4th stage RACH process, the response message may be returned to Msg 4 of the 4th stage RACH process, and in the case of the 2nd stage RACH process, the response message may be returned to Msg B of the 2nd stage RACH process. If the above SCG recovery process is recovered through the SR process, the response message may be returned to the response message to the SR request of the SR process.

[0085] In actual application, the response message transmitted from the first network node may indicate that the terminal allows at least one of SCG and MCG recovery, and may also reject at least one of SCG and MCG recovery. Additionally, if the SCG recovery request is intended to request the recovery of the terminal's SCG and MCG, the response message may allow the terminal to recover only SCG or MCG.

[0086] In the optional embodiment, the fact that the response message returns at least one of SCG configuration information and MCG configuration information indicates that the response message transmitted from the first network node indicates that the terminal may allow at least one of SCG and MCG recovery. The first network node should understand that if it refuses the recovery of the cell group requested by the terminal, the response message may not include SCG configuration information and MCG configuration information.

[0087] When implemented, the SCG configuration information includes at least a PSCell configuration, and furthermore, the SCG configuration information may further include at least one SCell configuration. The MCG configuration information includes at least a PCell configuration, and furthermore, the MCG configuration information may further include at least one SCell configuration.

[0088] It should be noted that the PSCell configuration included in the above SCG configuration information may be identical or different from the PSCell configuration of the SCG stopped by the terminal. The SCell configuration included in the above SCG configuration information may be identical or different from the SCell configuration of the SCG stopped by the terminal. The PCell configuration included in the above MCG configuration information may be identical or different from the PCell configuration of the SCG stopped by the terminal. The SCell configuration included in the above MCG configuration information may be identical or different from the SCell configuration of the MCG stopped by the terminal.

[0089] Below, the PSCell configuration included in the above SCG configuration information will be explained as an example.

[0090] If the PSCell configuration included in the above SCG configuration information differs from the PSCell configuration of the SCG that was stopped by the terminal, furthermore, the PSCell configuration included in the above SCG configuration information may be a complete PSCell configuration, in which case the terminal may directly restore the SCG according to the PSCell configuration included in the above SCG configuration information, and the PSCell configuration included in the above SCG configuration information may also be a modified value of a single PSCell configuration, in which case the terminal must restore the SCG by combining the PSCell configuration included in the above SCG configuration information and the PSCell configuration of the SCG that was stopped by the terminal.

[0091] It should be understood that the implementation principle of the above example also applies to the SCell configuration of the SCG configuration information, the PCell configuration of the MCG configuration information, and the SCell configuration; to avoid duplication, a detailed explanation is omitted here.

[0092] In an embodiment of the present application, optionally, after the step of receiving an SCG recovery request message from the first network node, the method,

[0093] It further includes the step of transmitting a target message; wherein the target message is,

[0094] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0095] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0096] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0097] This optional embodiment may be applied to the target process requesting SCG and MCG recovery of the terminal, but is not limited thereto.

[0098] Below, we will explain the target message in detail.

[0099] Case 1. The above response message includes MCG configuration information and SCG configuration information.

[0100] In the case of Case 1, since the response message includes an MCG configuration message, the terminal may succeed in MCG recovery or fail in MCG recovery, and the terminal may indicate that the terminal's MCG recovery succeeded or failed through the first SCG recovery completion message.

[0101] When implementing, the above first SCG recovery completion message may include the following implementation example.

[0102] Example 1: The first SCG recovery completion message indicates that the SCG and MCG recovery of the terminal was successful.

[0103] Example 2: The first SCG recovery completion message indicates that the SCG recovery of the terminal was successful and also indicates that the MCG recovery of the terminal was successful or failed.

[0104] In the case of Example 1 of the embodiment, the first SCG recovery completion message may implicitly or explicitly indicate that the MCG recovery of the terminal was successful, and the details are as follows.

[0105] If the first SCG recovery completion message can explicitly indicate that the MCG recovery of the terminal was successful, the first SCG recovery completion message may include a first indication field indicating that the MCG recovery of the terminal was successful. Thus, when the first indication field is obtained, the network side can determine that the MCG recovery of the terminal was successful.

[0106] If the above first SCG recovery completion message can implicitly indicate that the MCG recovery of the terminal has been successful, the network side may consider the MCG recovery of the terminal to have been successful upon receiving the first SCG recovery completion message, so there is no need to return the first indication field, thereby saving signaling overhead.

[0107] In the case of Example 2, the first SCG recovery completion message may explicitly indicate whether the MCG recovery of the terminal succeeded or failed, and the details are as follows.

[0108] The first SCG recovery completion message may include a second indicator field indicating whether the MCG recovery of the terminal succeeded or failed. Specifically, if the value of the second indicator field is the first value, the second indicator field is intended to indicate that the MCG recovery of the terminal succeeded, and if the value of the second indicator field is the second value, the second indicator field is intended to indicate that the MCG recovery of the terminal failed. Accordingly, the network side can determine whether the MCG recovery of the terminal succeeded or failed based on the acquired second indicator field value.

[0109] Case 2. The above response message includes SCG configuration information.

[0110] In the case of Case 2, since the response message above does not include an MCG configuration message, it means that the first network node refused to restore the MCG of the terminal, and the terminal can indicate that the MCG restoration of the terminal failed through the second SCG restoration completion message.

[0111] In implementation, the second SCG recovery completion message may explicitly indicate that the MCG recovery of the terminal has failed. For example, the second SCG recovery completion message may include a third instruction field indicating that the MCG recovery of the terminal has failed, and thus, when the third instruction field is obtained, the network side may determine that the MCG recovery of the terminal has failed.

[0112] Case 3. The above response message includes MCG configuration information.

[0113] In the case of Case 3, since the response message above includes an MCG configuration message, the terminal may succeed in MCG recovery or fail in MCG recovery, and the terminal may indicate that the terminal's MCG recovery succeeded or failed through the SCG recovery failure message.

[0114] When implementing, the above SCG recovery failure message may include the following implementation example.

[0115] Example 1: The above SCG recovery failure message indicates that the SCG and MCG recovery of the terminal failed.

[0116] Example 2: The above SCG recovery completion message indicates that the SCG recovery of the terminal failed and also indicates that the MCG recovery succeeded or failed.

[0117] In the case of Example 1 of the embodiment, the SCG recovery failure message may implicitly or explicitly indicate that the MCG recovery of the terminal was successful, and the details are as follows.

[0118] If the above SCG recovery failure message can explicitly indicate that the MCG recovery of the terminal has failed, the above SCG recovery failure message may include a fourth instruction field indicating that the MCG recovery of the terminal has failed. Accordingly, when the fourth instruction field is obtained, the network side can determine that the MCG recovery of the terminal has failed.

[0119] If the above SCG recovery failure message can implicitly indicate that the MCG recovery of the terminal was successful, the network side may consider the MCG recovery of the terminal to have failed upon receiving the above SCG recovery failure message, so there is no need to return the above fourth instruction field, thereby saving signaling overhead.

[0120] In the case of Implementation Example 2, the SCG recovery failure message may explicitly indicate whether the MCG recovery of the terminal succeeded or failed, and the details are as follows.

[0121] The above SCG recovery failure message may include a fifth instruction field indicating whether the MCG recovery of the terminal succeeded or failed. Specifically, if the value of the fifth instruction field is a first value, the second instruction field is intended to indicate that the MCG recovery of the terminal succeeded, and if the value of the second instruction field is a second value, the fifth instruction field is intended to indicate that the MCG recovery of the terminal failed. Thus, the network side can determine whether the MCG recovery of the terminal succeeded or failed based on the acquired value of the fifth instruction field.

[0122] In an embodiment of the present application, the terminal may transmit a target message to at least one of the first network node and the MN corresponding to the terminal. For ease of understanding, details are as follows.

[0123] The step of selectively sending a target message is,

[0124] The method includes the step of transmitting a target message to the first network node.

[0125] Optionally, the step of transmitting the target message is,

[0126] 1) transmitting a target message to a master node (MN) corresponding to the terminal through the first network node; and

[0127] 2) a step of directly transmitting a target message to an MN corresponding to the terminal; any one of these steps.

[0128] In Scenario 1), when an SCG recovery completion message transmitted from a terminal is received, the first network node may transmit the received SCG recovery completion message to the MN corresponding to the terminal through an interface such as Xn, and the terminal may not need to communicate with the Mn corresponding to itself. In Scenario 2), the terminal may transmit a target message directly to the MN corresponding to itself, and the first network node may not need to communicate with the MN corresponding to the terminal.

[0129] In the embodiments of the present application, the second network node and the first network node may be the same network node or different network nodes, and may be determined according to actual circumstances, and the embodiments of the present application are not limited thereto.

[0130] The second network node may be an MN corresponding to the terminal or an SN corresponding to the terminal before the terminal stops SCG. The first network node may be an SN corresponding to the terminal before the terminal stops SCG, or a network node of a cell group in the cell list indicated by the second network node.

[0131] Optionally, the first network node,

[0132] One cell group of the first cell list;

[0133] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0134] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0135] A third cell group corresponding to a secondary node (SN) before the SCG is stopped by the above terminal; and any one of the network nodes,

[0136] Here, each of the above cell groups includes at least a PSCell.

[0137] The first cell list above may include at least one PSCell identifier, and each PSCell identifier corresponds to at least one Scell ​​identifier. Each cell group may include one PSCell and one or more corresponding Scell ​​identifiers.

[0138] If there are at least two PSCells in the first cell list that satisfy a cell quality threshold, the first cell group may be any cell group that includes at least one of the two PSCells.

[0139] For the sake of ease of understanding, we will explain it by example as follows.

[0140] Assume that the first cell list includes PSCell identifier a (PSCell 1 identification), PSCell identifier b (PSCell 2 identification), and PSCell identifier c (PSCell 3 identification). Here, PSCell 1 and PSCell 2 satisfy the cell quality threshold, the cell quality of PSCell 2 is superior to that of PSCell 1 and PSCell 3, and PSCell 3 is the PSCell corresponding to the SN before the terminal stops the SCG. Thus,

[0141] If the first network node is a network node of any cell group among the first cell list, the first network node may be a network node of any cell group including PSCell 1, PSCell 2, or PSCell 3.

[0142] If the first network node is a network node of the first cell group, the first network node may be a network node of any cell group including PSCell 1 or PSCell.

[0143] If the first network node is a network node of the second cell group, the first network node may be a network node of any cell group including PSCell 2.

[0144] If the first network node is a network node of the third cell group, the first network node may be a network node of any cell group including PSCell 3.

[0145] It should be noted that the first cell list and the cell quality threshold may be configured by the second network node, but are not limited thereto. The cell quality threshold may be evaluated by any one of the following parameters: Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), and Signal-to-Noise and Interference Ratio (SINR), but is not limited thereto.

[0146] In an embodiment of the present application, optionally, when the secondary cell group (SCG) of the terminal is in a suspended state, prior to the step of restoring the SCG of the terminal using a target resource, the method,

[0147] A method further comprising the step of receiving SCG stop configuration information from a second network node.

[0148] Furthermore, the above SCG stop configuration information is,

[0149] First identification information indicating SCG recovery of the above terminal;

[0150] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0151] A first cell list indicating SCG recovery of the above terminal; and

[0152] It includes at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0153] It should be noted that the above-mentioned first identification information, the above-mentioned second identification information, the above-mentioned first cell list, and the above-mentioned cell quality threshold may be referred to in the aforementioned description, and that a detailed description thereof is omitted.

[0154] Furthermore, the above-mentioned first identification information is,

[0155] Cell Radio Network Temporary Identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0156] C-RNTI used by the above terminal in SCG; and

[0157] It includes at least one of a recovery identifier (resume ID) for the context information of the SCG of the terminal.

[0158] The second identification information above may be a truncated resume ID of the SCG context information of the terminal, and similarly, the aforementioned third identification information may also be considered as a truncated resume ID of the SCG context information of the terminal.

[0159] In an embodiment of the present application, the SCG stop configuration information is,

[0160] Indicating that the terminal's SCG is in a suspended state, and

[0161] It can be used for at least one of the information related to the recovery of the terminal's SCG.

[0162] When the above SCG stop configuration information indicates that the terminal's SCG should be in a stopped state, the terminal may keep the SCG in a stopped state upon receiving the above SCG stop configuration information. By doing so, rapid stopping of the terminal's SCG can be implemented, thereby saving power consumption of the terminal.

[0163] In the case where the above SCG suspension configuration information represents only information related to the recovery of the terminal's SCG, the trigger condition that triggers the terminal's SCG to become suspended is not the terminal receiving the above SCG suspension configuration information; however, the terminal can recover at least one of the terminal's SCG and MCG according to the configuration content of the above SCG suspension configuration information. As a result, the cell group can be recovered quickly, thereby satisfying the terminal's demand for large-capacity data transmission.

[0164] When the above SCG suspension configuration information indicates that the terminal's SCG should be in a suspended state and also indicates information related to the terminal's SCG recovery, the terminal may keep the SCG in a suspended state upon receiving the above SCG suspension configuration information; that is, the trigger condition that triggers the terminal's SCG to be in a suspended state is the terminal receiving the above SCG suspension configuration information. Furthermore, after storing the above SCG suspension configuration information, at least one of the terminal's SCG and MCG can be recovered according to the configuration content of the above SCG suspension configuration information. By doing so, rapid suspension of the terminal's SCG can be implemented, thereby saving power consumption of the terminal, and also rapid recovery of the cell group can be implemented, thereby satisfying the terminal's demand for large-capacity data transmission.

[0165] It should be noted that, in an embodiment of the present application, an SCG processing method applied to a terminal,

[0166] A method for processing an SCG may further be provided, which may include a step in which the SCG of the terminal becomes stopped when SCG stop configuration information is received.

[0167] Optionally, after the step in which the SCG of the terminal becomes stopped, the method,

[0168] The method further includes the step of performing a target process that requests the recovery of at least one of the SCG and MCG of the terminal when the master cell group (MCG) of the terminal fails.

[0169] The main difference between this SCG processing method and the SCG processing method of the method embodiment of FIG. 2 is that this SCG processing method focuses mainly on how the terminal stops the SCG, whereas the processing method according to the method embodiment of FIG. 2 focuses mainly on how the terminal triggers the target process.

[0170] Referring to FIG. 3, FIG. 3 is a flowchart (2) of a cell group processing method according to an embodiment of the present application. The cell group processing method according to an embodiment of the present application is applied to a first network node.

[0171] As illustrated in FIG. 3, the cell group processing method applied to the first network node is,

[0172] If the secondary cell group (SCG) of the terminal is in a stopped state, and the master cell group (MCG) of the terminal fails, the method may include a step (S301) of performing a target process to recover at least one of the SCG and MCG of the terminal.

[0173] The cell group processing method according to the present embodiment restores the SCG of the terminal using a target resource when the secondary cell group (SCG) of the terminal is in a suspended state. Through this, it can be seen that the embodiment of the present application can satisfy the terminal's demand for large-capacity data transmission by resolving the problem of cell group recovery when the MCG fails while the SCG is in a suspended state.

[0174] Optionally, the target process is at least one of a wireless resource control (RRC) re-establishment process and an SCG recovery process.

[0175] Optionally, if the target process is an SCG recovery process, the step of performing the target process is,

[0176] The method includes the step of receiving an SCG recovery request message from the terminal, the message comprising at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal, and a cause value in which the terminal performs the target process, such as MCG failure or MCG fast recovery;

[0177] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0178] Optionally, after the step of receiving an SCG recovery request message from the terminal, the method,

[0179] The method further includes the step of transmitting a response message to the above SCG recovery request message to the terminal;

[0180] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0181] Optionally, after the step of transmitting a response message to the above SCG recovery request message to the terminal, the method,

[0182] The method further includes the step of receiving a target message from the terminal; wherein the target message is,

[0183] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0184] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0185] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0186] Optionally, after the step of receiving a target message from the terminal, the method,

[0187] The method further includes the step of transmitting the above target message to a master node (MN) corresponding to the terminal.

[0188] Optionally, the step of receiving a target message from the terminal above is,

[0189] A step of receiving an SCG recovery completion message from the terminal when the above response message includes MCG configuration information and SCG configuration information; and

[0190] If the above response message includes at least SCG configuration information, the step of receiving an SCG recovery completion message from the terminal that further indicates whether MCG recovery was successful or failed; any one of these steps.

[0191] Optionally, the first network node,

[0192] One cell group of the first cell list;

[0193] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0194] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0195] A third cell group corresponding to a secondary node (SN) before the SCG is stopped by the above terminal; and any one of the network nodes,

[0196] Here, each of the above cell groups includes at least a PSCell.

[0197] This embodiment is an embodiment relating to a first network node corresponding to the method embodiment of FIG. 2, and it should be noted that the relevant description of the method embodiment may be referenced and the same beneficial effect may be achieved. Here, a detailed description is omitted to avoid duplication.

[0198] Referring to FIG. 4, FIG. 4 is a flowchart (3) of a cell group processing method according to an embodiment of the present application. The cell group processing method according to an embodiment of the present application is applied to a second network node.

[0199] As illustrated in FIG. 4, the cell group processing method applied to the second network node is,

[0200] It may include the step of transmitting SCG stop configuration information to the terminal (S401).

[0201] In an embodiment of the present application, the SCG stop configuration information is,

[0202] Indicating that the terminal's SCG is in a suspended state,

[0203] It can be used for at least one of the information related to the recovery of the terminal's SCG.

[0204] Regarding the role of the SCG stop configuration information, you may refer to the description of the method embodiment of FIG. 2, and a detailed description is omitted here.

[0205] The cell group processing method according to the present embodiment can achieve at least one of saving power consumption of the terminal due to the rapid cessation of the terminal SCG and satisfying the terminal's demand for large-capacity data transmission due to the rapid cessation of the terminal SCG by transmitting SCG cessation configuration information to the terminal.

[0206] Optionally, the above SCG stop configuration information,

[0207] First identification information indicating SCG recovery of the above terminal;

[0208] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0209] A first cell list indicating SCG recovery of the above terminal; and

[0210] It may include at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0211] Optionally, the first identification information is,

[0212] Cell wireless network temporary identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0213] C-RNTI used by the above terminal in SCG; and

[0214] It may include at least one of a recovery identifier for the context information of the SCG of the above terminal.

[0215] This embodiment is an embodiment relating to a second network node corresponding to the method embodiment of FIG. 2. It should be noted that the same beneficial effects can be achieved by referring to the relevant description of the method embodiment. Here, a detailed description is omitted to avoid duplication.

[0216] It should be noted that the various optional embodiments disclosed in the embodiments of this application may be implemented in combination with one another or independently, and that the embodiments of this application are not limited thereto.

[0217] For the sake of ease of understanding, we will explain it by example as follows.

[0218] The cell group processing method according to this example may include the following steps.

[0219] Step 1: The UE is in an RRC connection state and operates in MR-DC mode.

[0220] Step 2: MN or Sn sends an RRC message to the UE to cause the UE's SCG to enter a stopped state. Specifically,

[0221] This RRC message returns the SCG stop configuration, and the configuration content is,

[0222] Identification information for SCG recovery, such as the C-RNTI used by the UE in the MCG and / or SCG, a resume ID distinguishing the UE SCG context, and a truncated resume ID distinguishing the UE SCG;

[0223] A cell list for SCG recovery comprising at least one PSCell identifier, wherein one or more SCell identifiers may be attached to each PSCell;

[0224] It includes at least one of cell quality thresholds (RSRP, RSRQ, SINR) for SCG recovery.

[0225] Step 3: The UE saves the received SCG stop configuration.

[0226] Step 4: The UE determines whether the MCG has failed, and if the MCG failure condition is met, performs Step 5 or Step 6.

[0227] Step 5: Trigger the RRC re-establishment process.

[0228] Step 6: Trigger the RRC recovery process. Specifically,

[0229] The UE sends an SCG recovery request message to a specific network node, and the SCG recovery request message is,

[0230] Identification information for recovering SCG, which is segmented identification information generated by the UE according to the configuration of Step 2 or the configuration of Step 2;

[0231] Returns the content, such as the reason for initiating the SCG recovery request, i.e., the new cause value defined as MCG failure or MCG fast recovery.

[0232] Considering the mobility of the UE, the specific network node here and the SN in Step 2 may be the same node or different nodes. Specifically, the network node is,

[0233] In Step 2, a specific group of SCG stop configurations (PSCell or SCell),

[0234] A specific group (PSCell or SCell) that meets the cell quality threshold during SCG stop configuration in Step 2,

[0235] The group with the best cell quality (PSCell or SCell) among the SCG stop configurations in Step 2, and

[0236] In step 2, it may be a group (PSCell or SCell) corresponding to SN.

[0237] A specific network node feeds back to the UE an SCG recovery configuration message that returns the MCG configuration and SCG configuration.

[0238] The UE sends an SCG recovery complete message to a specific network node.

[0239] After the UE recovers the SCG, a specific network node notifies the MN that "SCG recovery was successful" through the Xn interface, or the UE directly notifies the MN that "SCG recovery was successful".

[0240] UE directly informs MN that "MCG recovery was successful."

[0241] In this example, when the MCG fails while the SCG is suspended, the UE can determine re-establishment or trigger a rapid recovery process for the SCG and MCG, thereby enabling the MCG and SCG to be recovered quickly at the same time when the terminal SCG is suspended and the MCG fails, thereby reducing signaling delay.

[0242] This example can be applied to the MR-DC scenario.

[0243] It should be noted that in the cell group processing method according to the embodiment of the present application, the performing entity may be a cell group processing device or a control module for performing the cell group processing method in the cell group processing device.

[0244] In the embodiments of the present application, the cell group processing device may be a device, a component of a communication device, an integrated circuit, or a chip, wherein the communication device may be a terminal, a first network node, or a second network node. The cell group processing device according to the embodiments of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, and the embodiments of the present application are not particularly limited thereto.

[0245] Referring to FIG. 5, FIG. 5 is a structural diagram of a cell group processing device according to an embodiment of the present application. The cell group processing device (500) illustrated in FIG. 5 can be applied to a terminal.

[0246] As illustrated in FIG. 5, the cell group processing device (500) is,

[0247] It includes a first execution module (501) that performs a target process requesting recovery of at least one of the terminal's SCG and MCG when the terminal's secondary cell group (SCG) is in a stopped state and the terminal's master cell group (MCG) fails.

[0248] Optionally, the target process is at least one of a wireless resource control (RRC) re-establishment process and an SCG recovery process.

[0249] Optionally, if the target process is an SCG recovery process, the first execution module (501) is,

[0250] A first transmission unit that transmits an SCG recovery request message to a first network node, the message including at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal, and a cause value in which the terminal performs the target process, such as MCG failure or MCG fast recovery;

[0251] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0252] Optionally, the first execution module (501) is,

[0253] It further includes a first receiving unit that receives a response message for the SCG recovery request message from the first network node;

[0254] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0255] Optionally, the cell group processing device (500) is,

[0256] It further includes a first transmission module that transmits a target message; and

[0257] The above target message is,

[0258] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0259] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0260] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0261] Optionally, the first transmission module,

[0262] A target message is transmitted to the first network node.

[0263] Optionally, the first transmission module,

[0264] Transmitting a target message to a master node (MN) corresponding to the terminal through the first network node; and

[0265] It is used for any one of the following: directly transmitting a target message to an MN corresponding to the terminal.

[0266] Optionally, the first network node,

[0267] One cell group of the first cell list;

[0268] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0269] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0270] A third cell group corresponding to a secondary node (SN) before the SCG is stopped by the above terminal; and any one of the network nodes,

[0271] Here, each of the above cell groups includes at least a PSCell.

[0272] Optionally, if the secondary cell group (SCG) of the terminal is in a stopped state, and the master cell group (MCG) of the terminal fails, before triggering the target process, the cell group processing device (500)

[0273] It further includes a first receiving module that receives SCG stop configuration information from a second network node.

[0274] Optionally, the above SCG stop configuration information,

[0275] First identification information indicating SCG recovery of the above terminal;

[0276] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0277] A first cell list indicating SCG recovery of the above terminal; and

[0278] It includes at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0279] Optionally, the first identification information is,

[0280] Cell wireless network temporary identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0281] C-RNTI used by the above terminal in SCG; and

[0282] It includes at least one of a recovery identifier for the context information of the SCG of the terminal.

[0283] The cell group processing device (500) according to the embodiment of the present application can implement each step of the method embodiment of FIG. 2 and achieve the same technical effect, and a detailed description is omitted to avoid duplication.

[0284] Referring to FIG. 6, FIG. 6 is a structural diagram of a cell group processing device according to an embodiment of the present application. The cell group processing device (600) illustrated in FIG. 6 can be applied to a terminal.

[0285] As illustrated in FIG. 6, the cell group processing device (600) is,

[0286] It includes a second execution module (601) that performs a target process to recover at least one of the SCG and MCG of the terminal when the secondary cell group (SCG) of the terminal is in a stopped state and the master cell group (MCG) of the terminal fails.

[0287] Optionally, the target process is at least one of a wireless resource control (RRC) re-establishment process and an SCG recovery process.

[0288] Optionally, if the target process is an SCG recovery process, the second execution module (601) is,

[0289] A second receiving unit that receives an SCG recovery request message from the terminal, the message including at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal, and a cause value in which the terminal performs the target process, such as MCG failure or MCG fast recovery;

[0290] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0291] Optionally, the second execution module (601) is,

[0292] It further includes a second transmission unit that transmits a response message to the above SCG recovery request message to the terminal;

[0293] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0294] Optionally, the cell group processing device (600) is,

[0295] It further includes a second receiving module that receives a target message from the terminal above; wherein the target message is,

[0296] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0297] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0298] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0299] Optionally, the cell group processing device (600) is,

[0300] It further includes a second transmission module that transmits the above target message to a master node (MN) corresponding to the terminal.

[0301] Optionally, the first transmission module,

[0302] If the above response message includes MCG configuration information and SCG configuration information, receiving an SCG recovery completion message from the terminal; and

[0303] If the above response message includes at least SCG configuration information, it is used for receiving an SCG recovery completion message from the terminal that further indicates whether MCG recovery was successful or failed; either of the above.

[0304] Optionally, the first network node,

[0305] One cell group of the first cell list;

[0306] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0307] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0308] A third cell group corresponding to a secondary node (SN) before the SCG is stopped by the above terminal; and any one of the network nodes,

[0309] Here, each of the above cell groups includes at least a PSCell.

[0310] The cell group processing device (600) according to the embodiment of the present application can implement each step of the method embodiment of FIG. 3 and achieve the same technical effect, and a detailed description is omitted to avoid duplication.

[0311] Referring to FIG. 7, FIG. 7 is a structural diagram of a cell group processing device according to an embodiment of the present application. The cell group processing device (700) illustrated in FIG. 7 can be applied to a terminal.

[0312] As illustrated in FIG. 7, the cell group processing device (700) is,

[0313] It includes a third transmission module (701) that transmits SCG stop configuration information to a terminal.

[0314] Optionally, the above SCG stop configuration information,

[0315] First identification information indicating SCG recovery of the above terminal;

[0316] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0317] A first cell list indicating SCG recovery of the above terminal; and

[0318] It includes at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0319] Optionally, the first identification information is,

[0320] Cell wireless network temporary identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0321] C-RNTI used by the above terminal in SCG; and

[0322] It includes at least one of a recovery identifier for the context information of the SCG of the terminal.

[0323] The cell group processing device (700) according to the embodiment of the present application can implement each step of the method embodiment of FIG. 4 and achieve the same technical effect, and a detailed description is omitted to avoid duplication.

[0324] Optionally, as illustrated in FIG. 8, an embodiment of the present application further provides a communication device (800) comprising: a processor (801); a memory (802); and a program or instruction stored in the memory (802) and executable by the processor (801); and when the program or instruction is executed by the processor (801), each step of the method embodiment illustrated in FIG. 2, the method embodiment illustrated in FIG. 3, or the method embodiment illustrated in FIG. 4 can be implemented and the same technical effect achieved, and a detailed description is omitted to avoid duplication.

[0325] FIG. 9 is a structural diagram (2) of a communication device according to an embodiment of the present application.

[0326] The communication device (900) includes, but is not limited to, a processor (901), memory (902), user interface (903), transceiver (904), and bus interface.

[0327] The communication device is not limited to the communication device structure shown in FIG. 9 and may include more or fewer parts, a combination of some parts, or different arrangements of parts, and a detailed description is omitted here.

[0328] In an embodiment of the present invention, the communication device (900) further includes a computer program or instruction stored in memory (902) and executable by the processor (901).

[0329] 1. The communication device (900) is implemented as the aforementioned terminal.

[0330] When the above program or instruction is executed by the processor (901),

[0331] If the secondary cell group (SCG) of the terminal is in a stopped state, and the master cell group (MCG) of the terminal fails, a step is implemented to perform a target process that requests the recovery of at least one of the SCG and MCG of the terminal.

[0332] Optionally, the target process is at least one of a wireless resource control (RRC) re-establishment process and an SCG recovery process.

[0333] Optionally, if the target process is an SCG recovery process, when the program or instruction is executed by the processor (901),

[0334] The step of transmitting an SCG recovery request message to a first network node, including at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal by a transceiver (904); and the step of the terminal performing a cause value of the target process, which is an MCG failure or an MCG fast recovery, may be further implemented.

[0335] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0336] Optionally, when the program or instruction is executed by the processor (901),

[0337] The step of receiving a response message for the SCG recovery request message from the first network node via the transceiver (904) can be further implemented, and

[0338] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0339] Optionally, when the program or instruction is executed by the processor (901),

[0340] The step of transmitting a target message by a transceiver (904) can be further implemented, and the target message is,

[0341] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0342] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0343] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0344] Optionally, when the program or instruction is executed by the processor (901),

[0345] The step of transmitting a target message to the first network node by the transceiver (904) can be further implemented.

[0346] Optionally, when the program or instruction is executed by the processor (901),

[0347] A step of transmitting a target message to a master node (MN) corresponding to the terminal via the first network node by the transceiver (904); and

[0348] Any one of the steps of directly transmitting a target message to the MN corresponding to the terminal by the transceiver (904) may be further implemented.

[0349] Optionally, the first network node,

[0350] One cell group of the first cell list;

[0351] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0352] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0353] It may be any one of the network nodes of the third cell group corresponding to the secondary node (SN) before the SCG is stopped by the above terminal, and

[0354] Here, each of the above cell groups includes at least a PSCell.

[0355] Optionally, when the program or instruction is executed by the processor (901),

[0356] The step of receiving SCG stop configuration information from the second network node via the transceiver (904) can be further implemented.

[0357] Optionally, the above SCG stop configuration information,

[0358] First identification information indicating SCG recovery of the above terminal;

[0359] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0360] A first cell list indicating SCG recovery of the above terminal; and

[0361] It includes at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0362] Optionally, the first identification information is,

[0363] Cell wireless network temporary identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0364] C-RNTI used by the above terminal in SCG; and

[0365] It includes at least one of a recovery identifier for the context information of the SCG of the terminal.

[0366] In this case, it should be noted that in the embodiment of the present invention, the network (900) can implement each step of the embodiment of the method shown in FIG. 2 of the embodiment of the present invention and achieve the same beneficial effect, and that a detailed description is omitted to avoid duplication.

[0367] 2. The communication device (900) is implemented as the aforementioned first network node.

[0368] When the above program or instruction is executed by the processor (901),

[0369] If the secondary cell group (SCG) of the terminal is in a stopped state, and the master cell group (MCG) of the terminal fails, a step of performing a target process to restore at least one of the SCG and MCG of the terminal is implemented.

[0370] Optionally, the target process is at least one of a wireless resource control (RRC) re-establishment process and an SCG recovery process.

[0371] Optionally, if the target process is an SCG recovery process, when the program or instruction is executed by the processor (901),

[0372] The method may further implement the steps of: receiving from the terminal a SCG recovery request message including at least one of a first identification information, a second identification information, or a third identification information indicating SCG recovery of the terminal via a transceiver (904); and the terminal performing a cause value of the target process which is an MCG failure or an MCG fast recovery.

[0373] Here, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal.

[0374] Optionally, when the program or instruction is executed by the processor (901),

[0375] The step of transmitting a response message to the SCG recovery request message to the terminal via the transceiver (904) can be further implemented, and

[0376] Here, the above response message returns at least one of the SCG configuration information and the MCG configuration information.

[0377] Optionally, when the program or instruction is executed by the processor (901),

[0378] The step of receiving a target message from the terminal via a transceiver (904) can be further implemented, and the target message is,

[0379] A first SCG recovery completion message for indicating that the SCG recovery of the terminal has been successful and that the MCG recovery of the terminal has been successful or has failed, when the above response message includes MCG configuration information and SCG configuration information;

[0380] If the above response message includes SCG configuration information, a second SCG recovery completion message to indicate that the SCG recovery of the terminal was successful and also that the MCG recovery of the terminal failed; and

[0381] If the above response message includes MCG configuration information, it is one of an SCG recovery failure message indicating that the SCG recovery of the terminal has failed and also indicating whether the MCG recovery succeeded or failed.

[0382] Optionally, when the program or instruction is executed by the processor (901),

[0383] The step of transmitting the target message to the master node (MN) corresponding to the terminal by the transceiver (904) can be further implemented.

[0384] Optionally, when the program or instruction is executed by the processor (901),

[0385] A step of receiving an SCG recovery completion message from the terminal when the response message includes MCG configuration information and SCG configuration information by the transceiver (904); and

[0386] If the response message includes at least SCG configuration information by the transceiver (904), the step of receiving an SCG recovery completion message from the terminal indicating that MCG recovery was successful or failed may be further implemented.

[0387] Optionally, the first network node,

[0388] One cell group of the first cell list;

[0389] A first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies the cell quality threshold;

[0390] A second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and

[0391] A third cell group corresponding to a secondary node (SN) before the SCG is stopped by the above terminal; and any one of the network nodes,

[0392] Here, each of the above cell groups includes at least a PSCell.

[0393] In this case, it should be noted that in the embodiment of the present invention, the network (900) can implement each step of the embodiment of the method shown in FIG. 3 of the embodiment of the present invention and achieve the same beneficial effect, and that a detailed description is omitted to avoid duplication.

[0394] 3. The communication device (900) is implemented as the aforementioned second network node.

[0395] When the above program or instruction is executed by the processor (901),

[0396] Implement a step of transmitting SCG stop configuration information to the terminal.

[0397] Optionally, the above SCG stop configuration information,

[0398] First identification information indicating SCG recovery of the above terminal;

[0399] A second identification information indicating SCG recovery of the terminal, obtained by dividing the first identification information;

[0400] A first cell list indicating SCG recovery of the above terminal; and

[0401] It includes at least one of a cell quality threshold indicating SCG recovery of the above terminal.

[0402] Optionally, the first identification information is,

[0403] Cell wireless network temporary identifier (C-RNTI) used by the terminal in the Master Cell Group (MCG);

[0404] C-RNTI used by the above terminal in SCG; and

[0405] It includes at least one of a recovery identifier for the context information of the SCG of the terminal.

[0406] In this case, it should be noted that in the embodiment of the present invention, the network (900) can implement each step of the embodiment of the method shown in FIG. 4 of the embodiment of the present invention and achieve the same beneficial effect, and that a detailed description is omitted to avoid duplication.

[0407] The bus architecture in FIG. 9 may include any number of interconnected buses and bridges, specifically, various circuits such as one or more processors indicated by processor (901) and memory indicated by memory (902) are interconnected. The bus architecture may also interconnect various other circuits such as peripheral devices, voltage stabilizers, and power management circuits, all of which are known in the art and will not be described further in this specification. The bus interface provides an interface.

[0408] The transceiver (904) may be a plurality of elements, that is, including a receiver and a transmitter, and provides a unit for communicating with various other devices in a transmission and reception medium.

[0409] For different user devices, the user interface (903) may be an interface capable of connecting necessary external or internal devices, and the connected devices include, but are not limited to, keypads, displays, speakers, microphones, joysticks, etc.

[0410] Memory (902) is intended to store software programs or instructions and various data. Memory (902) may primarily include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions for at least one function (e.g., sound playback function, image playback function, etc.). Additionally, memory (902) may include high-speed random access memory and may also include non-volatile memory, wherein the non-volatile memory may be ROM (Read-Only Memory), PROM (Programmable ROM), EPROM (Erasable PROM), EEPROM (Electrically EPROM), or flash memory. For example, it may include at least one hard drive, flash memory, or other non-volatile solid-state drive.

[0411] The processor (901) may include one or more processing units, and optionally, the processor (901) may integrate an application processor and a modem processor, wherein the application processor primarily processes an operating system, user interface, and application programs or instructions, and the modem processor primarily processes wireless communication, such as a baseband processor. It may be understood that the modem processor may not be integrated into the processor (901).

[0412] Embodiments of the present invention further provide a readable storage medium in which a program or instruction is stored, and when this program or instruction is executed by a processor, each step of the embodiment according to the cell group processing method described above can be implemented and the same technical effect can be achieved, and a detailed description is omitted to avoid duplication.

[0413] Here, the processor is a processor of a terminal according to the above-described embodiment. The readable storage medium includes a computer-readable storage medium such as ROM (Read-Only Memory), RAM (Random Access Memory), a magnetic disk, or a CD-ROM.

[0414] Embodiments of the present application further provide a chip comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor executes a program or instruction to achieve the same technical effect by implementing each step of the cell group processing method described above, and a detailed description is omitted to avoid duplication.

[0415] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system semiconductor, SOC, or system-on-chip, etc.

[0416] It is understood that the embodiments described in this disclosure may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. In the case of a hardware implementation, a module, unit, submodule, subunit, etc. may be implemented in one or a number of ASICs (Application Specific Integrated Circuits), DSPs (Digital Signal Processing), DSPDs (DSP Devices), PLDs (Programmable Logic Devices), FPGAs (Field-Programmable Gate Arrays), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for the functions according to this application, or a combination thereof.

[0417] It should be noted that in this document, terms such as “comprising,” “containing,” or any other variations thereof are intended to encompass a non-exclusive meaning, and that a process, method, article, or device comprising a series of components may include not only these components but also other components not explicitly listed herein, or may include unique components contained in such process, method, article, or device. Unless further limitations are provided, the component defined by the expression “comprising one ……” does not exclude the presence of a separate identical component in the process, method, article, or device comprising said component. Furthermore, it should be noted that the scope of methods and devices according to embodiments of this application is not limited to performing functions in the order shown or discussed, and may also include performing functions substantially simultaneously or in reverse order according to the relevant functions, and that, for example, described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to some examples may be combined in other examples.

[0418] From the description of the above embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software and a necessary general-purpose platform, and of course, hardware can also be used, but the former is often a better embodiment. Based on this understanding, the essential part of the technical solution of the present application or the part contributing to the prior art may be implemented in the form of a software product, and this computer software product is stored on a storage medium (e.g., ROM / RAM, magnetic disk, CD-ROM) containing various instructions that enable a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to perform the method according to each embodiment of the present application.

[0419] Although embodiments of the present application have been described above with reference to the attached drawings, the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative rather than restrictive. Furthermore, a person skilled in the art may derive various embodiments from the disclosure of the present application without departing from the scope of protection of the claims and the gist of the invention, all of which will fall within the scope of protection of the present application.

Claims

Claim 1 A cell group processing method performed by a terminal, wherein when the secondary cell group (SCG) of the terminal is in a suspended state, and when the master cell group (MCG) of the terminal fails, the method includes the step of performing a target process requesting the recovery of at least one of the SCG and MCG of the terminal; wherein, when the target process is an SCG recovery process, the step of performing the target process includes the step of transmitting an SCG recovery request message to a first network node, the message including at least one of a first identification information, a second identification information, or a third identification information indicating the SCG recovery of the terminal, and a cause value indicating MCG failure or MCG fast recovery, which is the cause value of the terminal performing the target process; wherein, the second identification information is obtained by dividing the first identification information by the second network node, and the third identification information is obtained by dividing the first identification information by the terminal. Claim 2 A cell group processing method according to claim 1, wherein after the step of transmitting the SCG recovery request message to a first network node, the method further comprises the step of receiving a response message for the SCG recovery request message from the first network node—wherein the response message returns at least one of SCG configuration information and MCG configuration information—; and the step of transmitting a target message; wherein the target message is any one of: a first SCG recovery completion message for indicating that the SCG recovery of the terminal has succeeded and that the MCG recovery of the terminal has succeeded or failed, if the response message includes MCG configuration information and SCG configuration information; a second SCG recovery completion message for indicating that the SCG recovery of the terminal has succeeded and that the MCG recovery of the terminal has failed, if the response message includes SCG configuration information; and an SCG recovery failure message for indicating that the SCG recovery of the terminal has failed and that the MCG recovery has succeeded or failed, if the response message includes MCG configuration information. Claim 3 A cell group processing method according to claim 2, wherein the step of transmitting the target message comprises: transmitting the target message to the first network node; or the step of transmitting the target message comprises any one of: transmitting the target message to a master node (MN) corresponding to the terminal through the first network node; and transmitting the target message directly to the MN corresponding to the terminal. Claim 4 A method for processing cell groups according to claim 1, wherein the first network node is any one of the following: a cell group among a first cell list; a first cell group among a first cell list, wherein the included primary secondary cell (PSCell) satisfies a cell quality threshold; a second cell group among a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and a third cell group corresponding to a secondary node (SN) before the SCG is stopped by the terminal; wherein each of the above cell groups includes at least a PSCell. Claim 5 A cell group processing method according to claim 1, wherein, when the secondary cell group (SCG) of the terminal is in a suspended state, prior to the step of triggering a target process when the master cell group (MCG) of the terminal fails, the method further comprises the step of receiving SCG suspension configuration information from a second network node, wherein the SCG suspension configuration information comprises at least one of: a first identification information indicating the SCG recovery of the terminal; a second identification information indicating the SCG recovery of the terminal obtained by dividing the first identification information; a first cell list indicating the SCG recovery of the terminal; and a cell quality threshold indicating the SCG recovery of the terminal; wherein the first identification information comprises at least one of: a cell wireless network temporary identifier (C-RNTI) used by the terminal in the master cell group (MCG); a C-RNTI used by the terminal in the SCG; and a recovery identifier for the context information of the terminal's SCG. Claim 6 A cell group processing method performed by a first network node, comprising: a step of performing a target process to recover at least one of the terminal’s SCG and MCG when the terminal’s secondary cell group (SCG) is in a suspended state and the terminal’s master cell group (MCG) fails; wherein, if the target process is an SCG recovery process, the step of performing the target process comprises receiving an SCG recovery request message from the terminal, the message including at least one of a first identification information, a second identification information, or a third identification information indicating the SCG recovery of the terminal, and a cause value indicating an MCG failure or an MCG fast recovery, which causes the terminal to perform the target process; wherein, the second identification information is obtained by dividing the first identification information by a second network node, and the third identification information is obtained by dividing the first identification information by the terminal. Claim 7 A cell group processing method according to claim 6, further comprising the step of transmitting a response message to the terminal after receiving the SCG recovery request message from the terminal, wherein the response message returns at least one of SCG configuration information and MCG configuration information. Claim 8 A cell group processing method according to claim 6, further comprising the step of receiving a target message from the terminal after the step of transmitting a response message to the terminal for the SCG recovery request message, wherein the target message is any one of: a first SCG recovery completion message for indicating that the SCG recovery of the terminal has succeeded and that the MCG recovery of the terminal has succeeded or failed, when the response message includes MCG configuration information and SCG configuration information; a second SCG recovery completion message for indicating that the SCG recovery of the terminal has succeeded and that the MCG recovery of the terminal has failed, when the response message includes SCG configuration information; and an SCG recovery failure message for indicating that the SCG recovery of the terminal has failed and that the MCG recovery has succeeded or failed, when the response message includes MCG configuration information. Claim 9 A cell group processing method according to claim 8, wherein the step of receiving a target message from the terminal comprises: receiving an SCG recovery completion message from the terminal when the response message includes MCG configuration information and SCG configuration information; and receiving an SCG recovery completion message from the terminal further indicating that MCG recovery was successful or failed when the response message includes at least SCG configuration information. Claim 10 In claim 6, the first network node is any one of the following: a cell group in a first cell list; a first cell group in a first cell list, wherein the included primary secondary cell (PSCell) satisfies a cell quality threshold; a second cell group in a first cell list, wherein the included PSCell is the PSCell with the best cell quality among the candidate PSCells included in the first cell list; and a third cell group corresponding to a secondary node (SN) before the SCG is stopped by the terminal; wherein each of the above cell groups includes at least a PSCell. Claim 11 A method for processing a cell group performed by a second network node, comprising the step of transmitting SCG stop configuration information to a terminal, wherein the SCG stop configuration information comprises at least one of: a first identification information indicating the SCG recovery of the terminal; a second identification information indicating the SCG recovery of the terminal obtained by dividing the first identification information; a first cell list indicating the SCG recovery of the terminal; and a cell quality threshold indicating the SCG recovery of the terminal; wherein the first identification information comprises at least one of: a cell wireless network temporary identifier (C-RNTI) used by the terminal in a master cell group (MCG); a C-RNTI used by the terminal in an SCG; and a recovery identifier for context information of the terminal's SCG. Claim 12 A communication device comprising: a processor; and a memory in which a program or instruction executable by the processor is stored; wherein, when the program or instruction is executed by the processor, the communication device implements a cell group processing method according to any one of claims 1 to 5, a cell group processing method according to any one of claims 6 to 10, or a cell group processing method according to claim 11. Claim 13 A readable storage medium having stored a program or instruction that, when executed by a processor, implements a cell group processing method according to any one of claims 1 to 5, a cell group processing method according to any one of claims 6 to 10, or a cell group processing method according to claim 11. Claim 14 delete Claim 15 delete Claim 16 delete Claim 17 delete Claim 18 delete Claim 19 delete Claim 20 delete Claim 21 delete Claim 22 delete Claim 23 delete Claim 24 delete Claim 25 delete Claim 26 delete Claim 27 delete Claim 28 delete Claim 29 delete Claim 30 delete Claim 31 delete Claim 32 delete Claim 33 delete Claim 34 delete

Images