Patent ID: 8391201

Claim:
A method of communicating with a mobile station, comprising: receiving, at a relay station of a wireless network, a communication signal S C from a base station of the network to be relayed as a relayed signal S R to the mobile station from the relay station; determining, at the relay station, a relay transmission time t RM of the relayed signal S R ; and transmitting, from the relay station at the relay transmission time t RM , the relayed signal S R to the mobile station, wherein the communication signal S C from the base station is also transmitted to the mobile station, wherein the relay transmission time t RM is determined so that the relayed signal S R and the communication signal S C arrive within a predetermined time period of each other at the mobile station, wherein the act of determining the relay transmission time t RM comprises: determining quantities r BR , D BR , r MR ; and calculating the relay transmission time t RM based on the quantities r BR , D BR , r MR , and r MR , wherein the quantity r BR represents a reception time of the communication signal S C from the base station at the relay station, wherein the quantity D BR represents a signal propagation delay between the base station and the relay station, and wherein the quantity r MR represents a reception time of a communication signal S M from the mobile station at the relay station.