Patent ID: 7889690
Filing Date: 2011-02-15
Classification: H04L,H04W

Abstract:
1. A method for establishing a routing path during a network entry process of a subscriber station (SS) based on a multi-hop relay standard, comprising the steps of: transmitting a ranging request (RNG-REQ) of the SS by a ranging connection identification (CID) from the SS to a base station (BS) through a first relay station (RS); allocating an SS CID and a routing path for the SS; transmitting a ranging response (RNG-RSP) having the SS CID and the routing path by a path CID from the BS to the first RS; updating the SS CID and the routing path into a routing table of the first RS after receiving the RNG-RSP; transmitting the RNG-RSP having the SS CID by the ranging CID from the first RS to the SS; starting a timeout period after the SS CID and the routing path are updated; and receiving a dynamic service addition request (DSA-REQ) having the SS CID; wherein when the DSA-REQ is received in the timeout period, the SS CID and the routing path are still kept in the routing table.