Patent ID: 8000272
Filing Date: 2011-08-16
Classification: H04W

Abstract:
1. A method comprising: for a plurality of subframes in a time division duplex frame, by an apparatus comprising at least one processor, allocating a number N of the subframes as downlink subframes and a remaining number greater than N of the subframes as uplink subframes; by the apparatus, dividing the uplink subframes into N groups, wherein at least one of the groups comprises more than one of the uplink subframes, a number of uplink subframes assigned to at least one of the groups being based at least in part on a ratio between a number of uplink subframes and a number of downlink subframes; and by the apparatus, wirelessly sending to a plurality of user equipments N grant messages; where each of the grant messages comprises a scheduling grant for one of the downlink subframes and a scheduling grant for each of the uplink subframes in one of the N groups; wherein for each of the groups that comprises more than one of the uplink subframes, the respective grant message comprises an indicator that maps to individual ones of the uplink subframes in the respective group.