Wireless cell activation and deactivation

1 . A method for wireless communication, comprising:

receiving, by a terminal, a first message from a network node, the first message including information for a first action to be performed relating to a secondary cell group (SCG);

wherein the information for the first action to be performed indicates whether the terminal is to perform a radio link monitoring (RLM), action for a primary secondary cell, PSCell, when the SCG is in a deactivated state; and

performing, by the terminal, the first action relating to the SCG in a deactivated state responsive to the receiving of the first message from the network node;

wherein the information for the first action to be performed includes a field, wherein the field is set false indicating the terminal is to stop performing the RLM for the primary secondary cell (PSCell) when the SCG is deactivated, wherein the field is set true indicating the terminal is to perform the RLM action for the PSCell when the SCG is in the deactivated state.

2 . The method of claim 1 , comprising:

sending, by the terminal, a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.

3 . The method of claim 1 , comprising:

receiving, by the terminal, a second message from the network node to keep the SCG in the deactivated state when a SN RRC reconfiguration procedure is triggered while the SCG is in the deactivated state.

4 . The method of claim 3 , wherein the terminal is configured to delay a RACH procedure towards the PSCell until initiation of a SCG activation procedure.

5 . The method of claim 1 , including:

sending, by the terminal, a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.

6 . The method of claim 1 , wherein the terminal is configured to delay a RACH procedure towards a primary secondary cell, PSCell, until initiation of secondary cell group, SCG, activation procedure.

7 . An apparatus for wireless communication comprising processor electronics that is configured to cause a terminal to carry out a method comprising:

receiving, by the terminal, a first message from a network node, the first message including information for a first action to be performed relating to a secondary cell group (SCG);

wherein the information for the first action to be performed indicates whether the terminal is to perform a radio link monitoring, (RLM), action for a primary secondary cell, PSCell, when the SCG is in a deactivated state; and

performing, by the terminal, the first action relating to the SCG in a deactivated state responsive to the receiving of the first message from the network node;

wherein the information for the first action to be performed includes a field, wherein the field is set false indicating the terminal is to stop performing the RLM for the primary secondary cell (PSCell) when the SCG is deactivated, wherein the field is set true indicating the terminal is to perform the RLM action for the PSCell when the SCG is in the deactivated state.

8 . The apparatus of claim 7 ,

wherein the terminal is configured to send a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.

9 . The apparatus of claim 8 , wherein the method further include:

sending a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.

10 . The apparatus of claim 7 , wherein the method includes:

receiving, by the terminal, a second message from the network node to keep the SCG in the deactivated state when a SN RRC reconfiguration procedure is triggered while the SCG is in the deactivated state.

11 . The apparatus of claim 10 , wherein the terminal is configured to delay a RACH procedure towards the PSCell until initiation of a SCG activation procedure.

12 . The apparatus of claim 7 , wherein the terminal is configured to delay a RACH procedure towards a primary secondary cell, PSCell, until initiation of secondary cell group, SCG, activation procedure.

13 . A non-transitory computer readable medium having code stored thereon, the code when executed by a processor, causing the processor to implement a method comprising:

receiving, by a terminal, a first message from a network node, the first message including information for a first action to be performed relating to a secondary cell group (SCG);

wherein the information for the first action to be performed indicates whether the terminal is to perform a radio link monitoring, (RLM), action for a primary secondary cell, PSCell, when the SCG is in a deactivated state; and

performing, by the terminal, the first action relating to the SCG in a deactivated state responsive to the receiving of the first message from the network node;

wherein the information for the first action to be performed includes a field, wherein the field is set false indicating the terminal is to stop performing the RLM for the primary secondary cell (PSCell) when the SCG is deactivated, wherein the field is set true indicating the terminal is to perform the RLM action for the PSCell when the SCG is in the deactivated state.

14 . The non-transitory computer readable medium of claim 13 , wherein the terminal is configured to send a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.

15 . The non-transitory computer readable medium of claim 14 , wherein the terminal is configured to delay a RACH procedure towards a primary secondary cell, PSCell, until initiation of secondary cell group, SCG, activation procedure.

16 . The non-transitory computer readable medium of claim 13 , wherein the method includes:

receiving, by the terminal, a second message from the network node to keep the SCG in the deactivated state when a SN RRC reconfiguration procedure is triggered while the SCG is in the deactivated state.

17 . The non-transitory computer readable medium of claim 13 , wherein the terminal is configured to delay a RACH procedure towards the PSCell until initiation of a SCG activation procedure.

18 . The non-transitory computer readable medium of claim 13 , wherein the method further include:

sending a secondary group of cells failure report to the network node comprising a master node (MN), wherein the secondary group of cells failure report is sent responsive to determining that a radio link failure (RLF) occurred on the PSCell, and wherein the secondary group of cells failure report includes measurements results of SCG serving cells and a set of neighbor cells.