Method and apparatus for beamforming in wireless communication system

摘要

A beamforming apparatus and method for expanding coverage of a control channel are provided, by which neighboring communication devices are classified according to the number of beams that they can receive, and therefore the frequency or period of beam transmission is adjusted to transmit a control channel by a beamforming method. Hence, an overhead reduction and an increase in transmission rate can be achieved, and coverage holes can be prevented.

主权项

1. A method for beamforming in a wireless communication device, the method comprising:
receiving, from each of a plurality of neighboring communication devices, channel state information or beam information associated with said each of the plurality of neighboring communication devices; determining a criterion for beam transmission based on the received channel state information or beam information, including
determining a plurality of beams receivable by the plurality of neighboring communication devices using the received channel state information or beam information,determining, for each of the plurality of beams, a set of neighboring communication devices that are configured to receive said each beam, anddetermining a transmission frequency for each of the plurality of beams, so that a beam receivable by more neighboring communication devices is transmitted with a higher frequency; and transmitting each of the plurality of beams to the neighboring communication devices included in the set according to the determined criterion.