Backhaul header compression

摘要

597437 Disclosed is a method in a mobility management entity (26) of a telecommunications network. The method includes negotiating use of header compression over at least a portion of a backhaul link. The backhaul link extends between a serving gateway node and a base station node of the telecommunications network. The backhaul link comprises a General Packet Radio service Tunneling Protocol (GTP) tunnel between the serving gateway node and a relay base station node (28). The General Packet Radio service Tunneling Protocol (GTP) tunnel traverses a radio interface between the relay base station node (28) and a donor base station node (70). Signalling is handled between the serving gateway node and the relay base station node (28) for negotiating by the mobility management entity (26) the use of the header compression inside the General Packet Radio service Tunneling Protocol (GTP) tunnel. The backhaul link includes a first tunnel extending between a donor base station node (70) and the serving gateway node and a second tunnel extending between a relay base station node and the donor base station node (70). The second tunnel traverses a radio interface between the relay base station node (28) and the donor base station node (70). Signalling is also handled between the donor base station node (70) and the relay base station node (28) for negotiating the use of the header compression inside the second tunnel. The backhaul link comprises a first tunnel extending between a donor base station node (70) and the serving gateway node and a second tunnel extending between a relay base station node (28) and the donor base station node (70). The second tunnel traverses a radio interface between the relay base station node (28) and the donor base station node (70). Finally, signalling is handled between the serving gateway node and the donor base station node (70) for negotiating by the mobility management entity (26) the use of the header compression inside the first tunnel.