Patent ID: 8355424
Filing Date: 2013-01-15
Classification: H04B,H04L

Abstract:
1. A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising: generating at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH) data stream; performing physical layer processing on a binary sequence of each of a plurality of physical channels including an E-DPDCH, a first dedicated physical control channel (DPCCH) and a second DPCCH to generate a first data stream and a second data stream, the first data stream including the E-DPDCH and the first DPCCH and the second data stream including the second DPCCH, each physical channel being mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch; determining pre-coding weights; performing pre-coding on the first data stream and the second data stream by multiplying the pre-coding weights to the first data stream and the second data stream, wherein one output stream is generated per antenna; and transmitting the output streams via a plurality of antennas, wherein the first and second DPCCHs carry a same pilot sequence and are transmitted using different channelization codes, and either multiple E-DPDCH data streams are transmitted using multiple-input multiple-output (MIMO) or a single E-DPDCH data stream is transmitted using a closed loop transmit diversity.