Patent ID: 9735846
Date: 2017-08-15
CPC Classifications: H04B

Claim:
1. A base station for communicating with multiple groups of wireless communication devices, comprising: a plurality of antennas; a processor; memory in electronic communication with the processor; instructions stored in the memory, the instructions being executable to: determine a number of wireless communication devices; send multiple channel state information requests to a same wireless communication device, wherein each of the multiple channel state information requests is sent using a subset of the plurality of antennas, and wherein each subset comprises more than one antenna and at least one common antenna; receive multiple channel state information messages from the same wireless communication device; combine the multiple channel state information messages; split the number of wireless communication devices into groups based on the combined channel state information messages; determine a precoding matrix for each group; and transmit a beamformed signal to each group using the precoding matrix for each group.