发明名称 |
Method for efficient MU-MIMO transmission by joint assignments of transmission architecture, and interference alignment schemes using optimized user-code assignments and power-allocation |
摘要 |
A method, apparatus, and wireless communication system is disclosed herein for operating a BIA code structure in a system. In one embodiment, the wireless communication system comprises a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner. The wireless communication system also includes a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource. |
申请公布号 |
US8787259(B2) |
申请公布日期 |
2014.07.22 |
申请号 |
US201113239167 |
申请日期 |
2011.09.21 |
申请人 |
NTT DoCoMo, Inc. |
发明人 |
Papadopoulos Haralabos;Ramprashad Sean A.;Wang Chenwei |
分类号 |
H04W4/00;H04B7/08;H04B7/04;H04B7/02 |
主分类号 |
H04W4/00 |
代理机构 |
Blakely, Sokoloff, Taylor & Zafman LLP |
代理人 |
Blakely, Sokoloff, Taylor & Zafman LLP |
主权项 |
1. A wireless communication system comprising:
a plurality of receivers, wherein each receiver in the plurality having a multi-mode antenna with a single radio frequency (RF) chain that is operable in a plurality of antenna modes, and further wherein each receiver shifts between the plurality of antenna modes in a predetermined manner; and a plurality of base stations in a cell topology to perform downlink transmissions to the plurality of receivers, each base station in the plurality of base stations having one or more transmitters having a transmit antenna and being operable to communicate with one or more of receivers in the plurality of receivers using a multi-user MIMO (MU-MIMO)-based blind interference alignment (BIA) scheme, wherein each active base station in the plurality of base stations operates an identical BIA code structure in a given transmission resource. |
地址 |
Tokyo JP |