Patent ID: 11963111
Assignee: NOKIA SOLUTIONS AND NETWORKS OY
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The apparatus of claim 1, wherein the communication system is an orthogonal frequency division multiplexing, OFDM, system, the orthogonal frequency division multiplexing system comprising a set of subcarriers, wherein the instructions, when executed with the at least one processor, cause the apparatus to perform iteratively updating the set of power allocation weights and outputting with:
iteratively updating the set of power allocation weights of the access point antennas for a subcarrier in the set of subcarriers using estimated power allocations extracted from a precoder computed for the subcarrier in the set of subcarriers, wherein the precoder for the subcarrier in the set of subcarriers is computed based on the received channel estimates for the subcarrier in the set of subcarriers and the previous corresponding set of power allocation weights of the access point antennas for the subcarrier in the set of subcarriers; and
outputting data representative of a precoder for the subcarrier in the set of subcarriers, the precoder for the subcarrier in the set of subcarriers computed from the received channel estimates of the subcarrier in the set of subcarriers and the updated set of power allocation weights of the access point antenna associated with the subcarrier in the set of subcarriers.