Patent ID: 9706548
Date: 2017-07-11
CPC Classifications: H04B,H04L,H04W

Claim:
1. A method, in a user equipment (UE), for a joint transmit and receive procedure with a radio base station (RBS), the method comprising: receiving a first transmission from the RBS at a time slot n, the transmission comprising a first pre-coded symbol; estimating a real channel and an effective channel for a channel over which the first transmission is received, the real channel referring to a transfer function estimated by the UE by means of reference signals, the effective channel referring to the real channel adjusted by transmission weights for the received first transmission; determining a combining vector based on the effective channel; determining a feedback vector based on the combining vector and the real channel; transmitting the feedback vector to the RBS, to be used by the RBS for determining a Signal-to-Leakage-and-Noise-Ratio (SLNR) pre-coding vector for a second transmission to the UE in a subsequent time slot.