Patent ID: 8547861
Filing Date: 2013-10-01
Classification: H04L,H04W

Abstract:
1. A method of optimizing downlink communications between a base station and mobile stations in a wireless communication system, the method comprising: acquiring user identifiers and geometry values for said mobile stations that are associated with registered users of the system; associating modulation control scheme (MCS) power values with respective said users in response to respective said geometry values; initializing a power pool; identifying, users that have an MCS power value greater than a reference MCS power value as high power users; calculating a power difference for each of said high power users, said power difference being a difference between the geometry value associated with said each of said high power users and a reference geometry value associated with said reference MCS power value respectively; accumulating in said power pool, said power differences associated with respective said high power users, by summing said power differences; identifying users that have an MCS power value below said reference MCS power value as low power users; associating increased geometry values with at least some of said low power users while depleting said power pool by corresponding amounts until said power pool is depleted; determining new MCSs for said at least some of said low power users based on said increased geometry values; and causing control information to be transmitted to said low power users using modulation and control schemes identified by corresponding said new MCSs at power levels associated with said new MCSs.