Operation method of communication node in millimeter wave based communication system
AssigneeElectronics and Telecommunications Research Institute
InventorsSoon Gi Park, Yong Seouk Choi
Life of this patent
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Abstract
An operation method of a communication node in a millimeter-wave based communication system may comprise when a first communication path between the second base station and the terminal connected to the first base station is not established, transmitting a radio resource control (RRC) request message requesting establishment of the first communication path to the second base station via the first base station; receiving an RRC response message from the second base station via the first base station, the RRC response message being a response to the RRC request message; and establishing the first communication path based on the RRC response message.
Claims7
An operation method of a terminal in a communication system including the terminal, a first base station, a second base station, and a gateway, the operation method comprising:
- when the terminal is connected to the first base station, a plurality of data radio bearers (DRBs) between the terminal the first base station are configured, a first DRB among the plurality of DRBs is mapped to a general packet radio service (GPM) tunneling protocol (GTP)-U tunnel between the first base station and the gateway, a second DRB is mapped to a communication interface established between the first base station and the second base station, and a wireless path between the second base station and the terminal is not established, transmitting a radio resource control (RRC) connection request message requesting establishment of the wireless path to the second base station via the first base station, the RRC connection request message being transmitted using the second DRB;
- receiving an RRC connection setup message from the second base station via the first base station, the RRC connection setup message being a response to the RRC connection request message and the RRC connection setup message being received using the second DRB;
- and
- transmitting an RRC connection setup complete message to the second base station via the first base station, the RRC connection setup complete message being a response to the RRC connection setup message and the RRC connection setup complete message being transmitted using the second DRB,
- wherein the RRC connection request message is transmitted from the first base station to the second base station via the communication interface mapped to the second DRB, the RRC connection setup message is generated by the second base station based on the RRC connection request message, and the RRC connection setup message is transmitted from the second base station to the first base station via the communication interface mapped to the second DRB.
Dependencies are inferred from the claim text.