发明名称 |
Method and apparatus for multi-antenna transmission in uplink |
摘要 |
Method and apparatus for uplink transmission using multiple antennas are disclosed. A wireless transmit/receive unit (WTRU) performs space time transmit diversity (STTD) encoding on an input stream of a physical channel configured for STTD. Each physical channel may be mapped to either an in-phase (I) branch or a quadrature-phase (Q) branch. The WTRU may perform the STTD encoding either in a binary domain or in a complex domain. Additionally, the WTRU may perform pre-coding on at least one physical channel including the E-DPDCH with the pre-coding weights, and transmitting the pre-coded output streams via a plurality of antennas. The pre-coding may be performed either after or before spreading operation. |
申请公布号 |
US9143213(B2) |
申请公布日期 |
2015.09.22 |
申请号 |
US201414172615 |
申请日期 |
2014.02.04 |
申请人 |
InterDigital Patent Holdings, Inc. |
发明人 |
Xi Fengjun;Cai Lujing;Zhang Hong;Pelletier Benoit |
分类号 |
H04B1/38;H04B7/06;H04L1/06;H04L27/36;H04B7/04 |
主分类号 |
H04B1/38 |
代理机构 |
Volpe and Koenig, P.C. |
代理人 |
Volpe and Koenig, P.C. |
主权项 |
1. A method implemented in a wireless transmit/receive unit (WTRU) for uplink transmission using multiple antennas, the method comprising:
processing at least one enhanced dedicated channel (E-DCH) dedicated physical data channel (E-DPDCH), a first dedicated physical control channel (DPCCH), and a second DPCCH to generate a first data stream and a second data stream, wherein the first data stream includes the first DPCCH and the second data stream includes the second DPCCH; applying pre-coding weights to the generated first data stream and the second data stream; and transmitting the first data stream and the second data stream via a plurality of antennas, wherein the first stream and the second stream carry a same pilot sequence and the first stream and the second stream are transmitted using different channelization codes. |
地址 |
Wilmington DE US |