Patent ID: 8848672
Filing Date: 2014-09-30
Classification: H04B,H04L,H04W

Abstract:
1. A method for scheduling uplink multi-antenna transmission, the method comprising: generating Downlink Control Information (DCI) including precoding information indicating a transmission rank and a precoding matrix for uplink transmission; transmitting the generated DCI for scheduling uplink transmission on a downlink control channel; and receiving an uplink signal scheduled according to the DCI on an uplink data channel, wherein the size of the precoding information is determined according to the number of multiple antennas and the number of precoding matrices available according to an uplink transmission rank, and wherein for 2 multiple antennas, if one codeword is enabled, the precoding information includes 6 states indicating 6 precoding matrices for rank 1 and 2 reserved states, and if two codewords are enabled, the precoding information includes 1 state indicating 1 precoding matrix for rank 2 and 7 reserved states.