Patent ID: 8194765
Filing Date: 2012-06-05
Classification: H04L

Abstract:
1. A method for configuring channel quality feedback in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth is divided into a plurality of sub-bands, the method comprising: receiving a plurality of channel quality measurements from a plurality of user equipment; based on the plurality of channel quality measurements, determining whether to implement a frequency selective channel quality feedback scheme or a non-frequency selective channel quality feedback scheme for a point-to-multipoint communication session involving the plurality of user equipment; implementing the determined channel quality feedback scheme; and when the determined scheduling scheme comprises a frequency selective channel quality feedback scheme, instructing the plurality of user equipment to implement a narrowband channel quality feedback scheme wherein a user equipment is given a list of sub-bands and is instructed to report back a subset of the list comprising one or more sub-bands that the user equipment finds to have a best signal strength among the sub-bands on this list; and when the determined scheduling scheme comprises a non-frequency selective channel quality feedback scheme, instructing the plurality of user equipment to one of: implement a wideband channel quality feedback scheme, to report on a specific sub-band, or not to report channel quality.