Patent ID: 8774044
Filing Date: 2014-07-08
Classification: H04B,H04L,H04W

Abstract:
1. A method at a base station configured for operation in a multi-hop wireless communication system that includes a relay node that operates in a first transmission mode at certain times and operates in a second transmission mode at certain other times, said method comprising: obtaining a channel quality indicator value that indicates a downlink channel quality between the base station and a user equipment served by the base station, for a measurement time that coincides with the relay node operating in one of the first and second transmission modes; and controlling a downlink transmission from the base station to the user equipment as a function of the channel quality indicator value, if the transmission mode of the relay node at a transmission time of the downlink transmission matches the transmission mode of the relay node at the measurement time, and otherwise controlling the downlink transmission as a function of an adjusted channel quality indicator value, including determining the adjusted channel quality indicator value as a function of the channel quality indicator value and a channel quality indicator offset value that accounts for differences between the first and second transmission modes in relay-caused downlink interference.