Patent ID: 9686000
Date: 2017-06-20
CPC Classifications: H04B

Claim:
1. A method for relay operations, the method comprising: estimating, by a relay, communications channels between a relay and a subset of communications devices coupled to the relay, wherein the estimating is in accordance with transmissions made by the communications devices in the subset of communications devices, wherein the estimating further comprises estimating first communications channels between the relay and a first type of communications devices in the subset of communications devices, wherein the estimating the first communications channels is in accordance with transmissions made by the first type of communications devices during a first exclusive interval, and wherein the first exclusive interval comprises transmissions solely from the first type of communications devices; storing, by the relay, a portion of the transmissions; determining, by the relay, a precoding matrix in accordance with estimates of the communications channels; precoding, by the relay, a transmission comprising a combination of at least a subset of the stored portion of the transmissions with the precoding matrix; and transmitting, by the relay, the precoded transmission to the subset of communications devices.