Method and device for managing tag of cell in communication system
AssigneeLG Electronics Inc.
InventorsSunyoung Lee, Sungjun Park, Sunghoon Jung, Youngdae Lee, Seungjune Yi
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Abstract
This description suggests a technique of controlling the timing advance group (TAG) of a cell. In particular, this description suggests a method of managing the TAG in a communication system. The method may include receiving a control signal indicating a cell by user equipment (UE); putting the cell in a first TAG by the UE in response to the control signal, wherein the first TAG includes only at least one secondary cell of which the uplink timing is not decided; performing a random access procedure on the cell in the first TAG by the UE; and putting the cell in a second TAG from the first TAG by the UE.
Claims13
A method of managing a timing advance group (TAG) in a communication system, the method comprising:
- receiving, at a user equipment (UE), control signal indicating a first cell;
- in response to the control signal, including, at the UE, the first cell in a first TAG, wherein the first TAG only includes at least one secondary cell of which uplink timing is undetermined;
- performing, at the UE, random access procedure on the first cell included in the first TAG;
- and
- including, at the UE, the first cell from the first TAG to a second TAG.
The user equipment (UE) for managing a timing advance group (TAG) in a communication system, the UE comprising:
- a transceiver configured to receive and/or transmit a signal;
- and
- a processor coupled to the transceiver and configured to:
- receive control signal indicating a first cell;
- in response to the control signal, include the first cell in a first TAG, wherein the first TAG only includes at least one secondary cell of which uplink timing is undetermined;
- perform random access procedure on the first cell included in the first TAG;
- and
- include the first cell from the first TAG to a second TAG.
Dependencies are inferred from the claim text.