Base station and operation method thereof
AssigneeElectronics and Telecommunications Research Institute
InventorMin Suk Choi
Life of this patent
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Abstract
An operation method of a base station in a mobile communication network may comprise determining to disconnect a radio resource control (RRC) connection; transmitting a RRC connection release message to a terminal; releasing the RRC connection with the terminal while maintaining an S1-U bearer set up between the base station and a serving gateway (S-GW); and releasing the S1-U bearer after maintaining the S1-U bearer for a first time.
Claims9
An operation method of a base station in a mobile communication network, the operation method comprising:
- determining to disconnect a radio resource control (RRC) connection;
- transmitting a RRC connection release message to a terminal;
- maintaining the RRC connection during a second time before releasing the RRC connection after transmitting the RRC connection release message;
- and
- receiving a RRC connection resume request message from the terminal,
- wherein, when the RRC connection resume request message is received before a time of maintaining the RRC connection exceeds the second time, the RRC connection is not released.
An operation method of a terminal, the operation method comprising:
- receiving a radio resource control (RRC) connection release message including information on a timing advance (TA) of the terminal from a base station;
- maintaining a RRC connection between the terminal and the base station for a predetermined time after receiving the RRC connection release message;
- releasing the RRC connection after a lapse of the predetermined time;
- verifying a validity of the TA based on a traveled distance of the terminal;
- and
- when the TA is valid, transmitting a RRC connection resume request message by using the TA.
A base station in a mobile communication network, the base station comprising a processor and a memory storing at least one instruction executed by the processor, wherein the at least one instruction is configured to:
- determine to disconnect a radio resource control (RRC) connection;
- transmit a RRC connection release message including information on a timing advance (TA) of a terminal to the terminal;
- release the RRC connection with the terminal while maintaining an S1-U bearer set up between the base station and a serving gateway (S-GW);
- and
- release the S1-U bearer after maintaining the S1-U bearer for a first time, wherein
- when a RRC connection resume request message is received without receiving a random access channel from the terminal after transmitting the RRC connection release message, information on a new TA is not transmitted, and the RRC connection is resumed.
Dependencies are inferred from the claim text.