Reduction of transmission overhead in a wireless communication system
View Patent ↗Methods and apparatuses for reducing the overhead associated with transmitting MAPs are provided by grouping client stations in different constellations into one of two or more groups/allocations based partially upon their respective channel conditions. As a result of grouping, client stations within each group/allocation share a single resource allocation and in addition, the different groups of client stations can be scheduled such that variable modulation repeat-coding schemes can be implemented for map transmissions to each group, thereby reducing the repetition rates and overhead associated with map transmissions.
1. A method for use in a base station, the method comprising:
assigning a client station to a group, the group including a plurality of client stations having a same assigned modulation and coding scheme;
selecting a repeat-coding scheme for the group based on the assigned modulation and coding scheme that is different from at least one other repeat-coding scheme associated with at least one other group;
generating a frame that includes a map message modulated using the selected repeat-coding scheme and data for at least a portion of the plurality of client stations in the group, the data coded using the modulation and coding scheme; and
transmitting the frame.
2. The method of claim 1 , wherein the transmitting the frame further comprises:
transmitting a portion of the map message a predetermined number of times based on the selected repeat-coding scheme.
3. The method of claim 1 , wherein a coding repetition for the repeat-coding scheme is selected based on the modulation and coding scheme of the group.