Patent ID: 9585055
Date: 2017-02-28
CPC Classifications: H04B,H04W

Claim:
1. A method of adjusting uplink load variance, comprising steps of: prior to a user equipment (UE) changing a beam direction of a beam turning from towards a current beamforming control cell to towards a target beamforming control cell, estimating an uplink load increment of the target beamforming control cell due to the UE's beam direction turning from toward the current beamforming control cell to towards the target beamforming control cell; comparing the estimated uplink load increment with an available uplink load headroom of the target beamforming control cell; and adjusting an uplink load grant of another UE currently being served by the target beamforming control cell if the estimated uplink load increment is larger than the available uplink load headroom, so that the an uplink load increment is not beyond the available uplink load headroom, wherein the UE being in a close loop beamforming (CLBF) mode determines a precoding vector based on an explicit feedback from a base station.