Method and apparatus for supporting terminal relay
AssigneeElectronics and Telecommunications Research Institute
InventorsNam Suk Lee, Hee Sang Chung
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Abstract
An operation method of a first terminal in a communication system may comprise: receiving a link establishment request message from a second terminal; transmitting, to the second terminal, a link establishment response message including a node address of a first base station in response to the link establishment request message; and receiving a link establishment completion message from the second terminal.
Claims13
An operation method of a first terminal in a communication system, the operation method comprising:
- receiving a link establishment request message from a second terminal;
- transmitting, to the second terminal, a link establishment response message including a node address of a first base station in response to the link establishment request message;
- receiving a link establishment completion message from the second terminal;
- receiving, from the second terminal, a routing information registration request message including routing information composed of a first root node address, a first branch node address, and a first relay adaptation protocol (RAP) entity identifier (ID), the first root node address being a node address of a second base station to which the second terminal was previously connected, and the first branch node address being a node address of the first base station;
- registering the routing information in a routing table, and transmitting the routing information registration request message to the first base station;
- receiving a routing registration confirmation message from the first base station;
- and
- transmitting the routing registration confirmation message to the second terminal.
An operation method of a first base station in a communication system, the operation method comprising:
- transmitting a node address to a first terminal when the first terminal is connected to the first base station;
- receiving, from the first terminal, a routing information registration request message including routing information of a second terminal, the routing information being composed of a first root node address, a first branch node address, a first relay channel identifier (ID), and a first radio link control (RLC) channel ID, the first root node address being a node address of a second base station to which the second terminal was previously connected, and the first branch node address being a node address of the first base station;
- and
- registering the routing information of the second terminal in a routing table, and transmitting a routing registration confirmation message to the first terminal.
A first base station, the first base station comprising a processor, a memory electronically communicating with the processor, and instructions stored in the memory, wherein when executed by the processor, the instructions cause the first base station to:
- transmit a node address to a first terminal when the first terminal is connected to the first base station;
- receive, from the first terminal, a routing information registration request message including routing information of a second terminal, the routing information being composed of a first root node address, a first branch node address, a first relay channel identifier (ID), and a first radio link control (RLC) channel ID, the first root node address being a node address of a second base station to which the second terminal was previously connected, and the first branch node address being a node address of the first base station;
- and
- register the routing information of the second terminal in a routing table, and transmit a routing registration confirmation message to the first terminal.
Dependencies are inferred from the claim text.