ANTENNA SELECTION CODEBOOK FOR FULL DIMENSIONAL MIMO SYSTEMS

摘要

Embodiments of a system and method for beamforming in a Wireless Network are generally described herein. In some embodiments, an enhanced Node B (eNB) transmits to User Equipment (UE), from a plurality (Nc) of antenna ports of a plurality (Nt) of transmit antennas, a data signal where signal power is allocated in eigen beams, each of the Nt transmit antennas having antenna ports that are adjustable in elevation and in azimuth. The eNB also determines and transmits to the UE a Pc set of the largest principal eigen beams of the data signal and receives, as feedback from the UE, a precoding matrix that identifies the antenna port from which strongest energy in the data signal is detected at the UE. The eNB uses the precoding matrix for beamforming.

主权项

1. A method for antenna selection performed by User Equipment (UE), the method comprising:
receiving, from a plurality (Nc) of antenna ports of a plurality (Nt) of transmit antennas of an enhanced Node B (eNB), a data signal where signal power is allocated in eigen beams, each of the Nt transmit antennas having antenna ports that are adjustable in elevation and in azimuth; receiving from the eNB a Pc set of signals representing the largest principal eigen beams of the data signal; identifying from the Pc set the antenna port from which the strongest channel energy is detected at the UE, for use in constructing a precoding matrix P; and transmitting the precoding matrix P to the eNB, the precoding matrix indicating that data should be sent by the eNB from the identified antenna port, the precoding matrix P used by the eNB for beamforming.