发明名称 |
DOWNLINK TRANSMISSION IN A MULTIPLE-USER MULTIPLE-INPUT MULTIPLE-OUTPUT (MU-MIMO) WIRELESS COMMUNICATION SYSTEM |
摘要 |
Information transmission in a multiple-input multiple-output ("MIMO") wireless communication system is provided. In one embodiment, a method for transmitting information in a MIMO wireless communication system, comprising updating channel quality information ("CQI") values of a plurality of wireless devices, wherein updating said CQI values consider the effects of interference from transmissions to those wireless devices associated with a pre-assigned companion codeword set; pairing said plurality of wireless devices using at least said CQI values, a precoding matrix index ("PMI") value and said pre-assigned companion codeword set, wherein said pre-assigned companion codeword set, pre-assigned companion codewords associated with said pre-assigned companion codeword set and said PMI value are updated for each of said plurality of wireless devices; precoding the information for each of said plurality of wireless devices using said PMI value; and transmitting said precoded information to each of said plurality of wireless devices. |
申请公布号 |
CA2728392(C) |
申请公布日期 |
2014.09.23 |
申请号 |
CA20112728392 |
申请日期 |
2011.01.17 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
BAYESTEH, ALIREZA;MOBASHER, AMIN;XU, HUA;YU, YI;JIA, YONGKANG;SMITH, JACK ANTHONY;CAI, ZHIJUN SAM;GAO, SHIWEI |
分类号 |
H04B7/02;H04W24/10 |
主分类号 |
H04B7/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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