Patent ID: 9344948
Filing Date: 2016-05-17
CPC Classification: H04W

Claim Text:
1. A handover method in a wireless communication system having a subscriber station ( 12 ), at least one base station ( 13 ) and a plurality of relay stations ( 14 , MR_ 1 ′, MR_ 2 ), the subscriber station exchanging data traffic and signalling by employing wireless links with the base station ( 13 ), said wireless links including relay links which are indirect links between the subscriber station ( 12 ) and the base station ( 13 ) via one or more of the relay stations ( 14 , MR_ 1 ′, MR_ 2 ), the method comprising: measuring a signal quality of each of a plurality of said wireless links; determining a need for a handover of the subscriber station ( performing a handover of the subscriber station ( employing, for control signalling between the subscriber station ( performing said handover for data traffic only whilst maintaining said direct link for control signalling.