发明名称 |
METHODS AND DEVICES FOR DETERMINING A TRANSMISSION RANK |
摘要 |
The invention relates to a method 20 in a base station 2 for determining a transmission rank. The base station 2 controls two or more transmit antenna ports 3a, 3b for supporting a multi-antenna transmission mode and for transmission of data on a channel for communication with a user equipment 4. The method 20 comprises receiving 21 a rank indicator from a user equipment 4, the rank indicator indicating the number of spatial multiplexing layers recommended by the user equipment 4, and determining 22 the transmission rank based on a channel imbalance factor CIF, wherein the channel imbalance factor CIF quantifies a difference in receive power of the two or more transmit antenna ports 3a, 3b. The invention also relates to a base station, methods in user equipment, user equipment, computer programs, and computer program products. |
申请公布号 |
WO2013058685(A1) |
申请公布日期 |
2013.04.25 |
申请号 |
WO2011SE51245 |
申请日期 |
2011.10.18 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);ZHANG, HAOCHUAN;HU, YANG;LI, SHAOHUA;SONG, XINGHUA;WANG, JIANFENG |
发明人 |
ZHANG, HAOCHUAN;HU, YANG;LI, SHAOHUA;SONG, XINGHUA;WANG, JIANFENG |
分类号 |
H04L25/02;H04L5/00;H04L25/03 |
主分类号 |
H04L25/02 |
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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