Method and device for a relay node

摘要

A relay node (110) for a radio access network (100), arranged to be a relay node between one or more User Equipments (105) in a cell (125) of the radio access network and a base station (115) serving the cell. The relay node (110) is arranged to identify itself as a relay node in the cell (125) in the radio access network (100), and is also arranged to receive a non-support indication indicating that the base station serving the cell (125) is unable to support a relay node. The relay node (110) is arranged to, upon receiving said non-support indication, attempt to establish itself as a relay node in another cell.

主权项

1. A relay node for a radio access network, the relay node arranged between one or more User Equipments and a base station serving a cell of the radio access network, the relay node comprising:
a receive unit; a transmit unit; and a control unit, wherein the control unit is configured to:
transmit an identification, using the transmit unit, indicating that the relay node is a relay node in the cell of the radio access network;transmit one or more connection messages, using the transmit unit, to a separate configuration node in the radio access network or in a core network to which the radio access network is connected, the configuration node being different from the base station serving the cell;receive a non-support indication from the configuration node, using the receive unit, indicating that the base station serving the cell is unable to support a relay node;receive additional information, along with the non-support indication, the additional information comprising one or more of:
an indication of a reason why the base station serving the cell is unable to support relay nodes;an alternative carrier or frequency band intended for relay node communication;an alternative Radio Access Technology, RAT, intended for relay node communication;a list of one or more cells in which there is support for relay nodes; anda list of one or more cells in which there is no support for relay nodes; andestablish itself as a relay node in another cell, using the transmit unit and said additional information, upon receiving said non-support indication.