Cell group processing method and apparatus and communication device

1 . A cell group processing method performed by a terminal, comprising:

executing a target process in response to a master cell group (MCG) of a terminal failing in a case that a secondary cell group (SCG) of the terminal is in a suspended state, wherein the target process is used for requesting to recover at least one of the SCG and the MCG of the terminal;

wherein in a case that the target process is the SCG recovery process, the executing a target process comprises:

transmitting an SCG recovery request message to a first network node, wherein the SCG recovery request message comprises: second identification information or third identification information for indicating recovery of the SCG of the terminal; and

the second identification information is obtained by a second network node by truncating first identification information, and the third identification information is obtained by the terminal by truncating the first identification information;

wherein after the transmitting an SCG recovery request message to a first network node, the method further comprises:

receiving a response message for the SCG recovery request message transmitted by the first network node, wherein

the response message carries at least one of SCG configuration information or MCG configuration information.

2 . The method according to claim 1 , wherein after the receiving SCG recovery configuration information transmitted by the first network node, the method further comprises:

transmitting a target message, wherein the target message is any one of:

the target message is a first SCG recovery completion message in a case that the response message comprises the MCG configuration information and the SCG configuration information, wherein the first SCG recovery completion message is used for indicating a success of SCG recovery of the terminal, and is further used for indicating a success or a failure of MCG recovery of the terminal;

the target message is a second SCG recovery completion message in a case that the response message comprises the SCG configuration information, wherein the second SCG recovery completion message is used for indicating a success of the SCG recovery of the terminal, and is further used for indicating a failure of the MCG recovery of the terminal; or

the target message is an SCG recovery failure message in a case that the response message comprises the MCG configuration information, wherein the SCG recovery failure message is used for indicating a failure of the SCG recovery of the terminal, and is further used for indicating a success or a failure of the MCG recovery.

3 . The method according to claim 2 , wherein the transmitting a target message comprises:

transmitting the target message to the first network node, or

wherein the transmitting a target message comprises any one of:

transmitting, through the first network node, the target message to a master node (MN) corresponding to the terminal; or

directly transmitting the target message to the MN corresponding to the terminal.

4 . The method according to claim 1 , wherein the first network node is a network node of any one of:

any cell group in a first cell list;

a first cell group in the first cell list, wherein a primary secondary cell (PSCell) comprised in the first cell group satisfies a cell quality threshold;

a second cell group in the first cell list, wherein a PSCell comprised in the second cell group is a PSCell having the best cell quality from candidate PSCells comprised in the first cell list; or

a third cell group corresponding to a secondary node (SN) before the SCG of the terminal is suspended, wherein

each of the cell groups comprises at least a PSCell.

5 . The method according to claim 1 , wherein before the executing a target process in response to a master cell group (MCG) of the terminal failing in a case that a secondary cell group (SCG) of the terminal is in a suspended state, the method further comprises:

receiving SCG suspension configuration information transmitted by a second network node.

6 . The method according to claim 5 , wherein the SCG suspension configuration information comprises at least one of:

first identification information for indicating recovery of the SCG of the terminal;

second identification information for indicating recovery of the SCG of the terminal, wherein the second identification information is obtained by truncating the first identification information;

a first cell list for indicating recovery of the SCG of the terminal; or

a cell quality threshold for indicating recovery of the SCG of the terminal,

wherein the first identification information comprises at least one of:

a cell-radio 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; or

a resume ID of context information of the SCG of the terminal.

7 . A communication device, comprising:

a processor; and

a memory storing programs or instructions that is executable on the processor, wherein the programs or the instructions, when executed by the processor, cause the communication device to perform the cell group processing method according to claim 1 .

8 . A cell group processing method performed by a first network node, comprising:

executing a target process in response to a master cell group (MCG) of a terminal failing in a case that a secondary cell group (SCG) of the terminal is in a suspended state, wherein the target process is used for recovering at least one of the SCG and the MCG of the terminal;

wherein in a case that the target process is the SCG recovery process, the executing a target process comprises:

receiving an SCG recovery request message transmitted by the terminal, wherein the SCG recovery request message comprises second identification information, or third identification information for indicating recovery of the SCG of the terminal; and

the second identification information is obtained by a second network node by truncating first identification information, and the third identification information is obtained by the terminal by truncating the first identification information;

wherein after the receiving an SCG recovery request message transmitted by the terminal, the method further comprises:

transmitting a response message for the SCG recovery request message to the terminal, wherein

the response message carries at least one of SCG configuration information or MCG configuration information.

9 . The method according to claim 8 , wherein after the transmitting a response message for the SCG recovery request message to the terminal, the method further comprises:

receiving a target message transmitted by the terminal, wherein the target message is any one of:

the target message is a first SCG recovery completion message in a case that the response message comprises the MCG configuration information and the SCG configuration information, wherein the first SCG recovery completion message is used for indicating a success of SCG recovery of the terminal, and is further used for indicating a success or a failure of MCG recovery of the terminal;

the target message is a second SCG recovery completion message in a case that the response message comprises the SCG configuration information, wherein the second SCG recovery completion message is used for indicating a success of the SCG recovery of the terminal, and is further used for indicating a failure of the MCG recovery of the terminal; or

the target message is an SCG recovery failure message in a case that the response message comprises the MCG configuration information, wherein the SCG recovery failure message is used for indicating a failure of the SCG recovery of the terminal, and is further used for indicating a success or a failure of the MCG recovery.

10 . The method according to claim 9 , wherein after the receiving a target message transmitted by the terminal, the method further comprises:

transmitting the target message to a master node (MN) corresponding to the terminal.

11 . The method according to claim 9 , wherein the receiving a target message transmitted by the terminal comprises any one of:

receiving an SCG recovery completion message transmitted by the terminal in a case that the response message comprises the MCG configuration information and the SCG configuration information; or

receiving an SCG recovery completion message transmitted by the terminal in a case that the response message comprises at least the SCG configuration information, wherein the SCG recovery completion message is further used for indicating a success or a failure of the MCG recovery.

12 . The method according to claim 8 , wherein the first network node is a network node of any one of:

any cell group in a first cell list;

a first cell group in the first cell list, wherein a primary secondary cell (PSCell) comprised in the first cell group satisfies a cell quality threshold;

a second cell group in the first cell list, wherein a PSCell comprised in the second cell group is a PSCell having the best cell quality from candidate PSCells comprised in the first cell list; or

a third cell group corresponding to a secondary node (SN) before the SCG of the terminal is suspended, wherein

each of the cell groups comprises at least a PSCell.

13 . A communication device, comprising:

a processor; and

a memory storing programs or instructions that is executable on the processor, wherein the programs or the instructions, when executed by the processor, cause the communication device to perform the cell group processing method according to claim 9 .