发明名称 |
METHODS AND DEVICES FOR UPLINK TRANSMIT DIVERSITY |
摘要 |
Methods and devices are described for use in a wireless communications system supporting uplink transmit diversity. If it is detected that a user equipment is currently in one of a predetermined set of situations, a set of restrictions associated with the detected situation is applied when the user equipment changes pre-coding weights. The set of restrictions limits how much the pre-coding weights can be changed. A user equipment in soft handover may also be restricted to only consider feedback information from a serving base station when selecting pre-coding weights. Thus it is possible to ensure that pre-coding weights are carefully selected in situations where there is a high risk for detrimental interference and/or inferior uplink/downlink performance. A network node may be configured to detect such a situation and notify the user equipment of any restrictions to be applied on the pre-coding weight selection.
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申请公布号 |
US2011176593(A1) |
申请公布日期 |
2011.07.21 |
申请号 |
US201113010135 |
申请日期 |
2011.01.20 |
申请人 |
HULTELL JOHAN;BERGMAN JOHAN |
发明人 |
HULTELL JOHAN;BERGMAN JOHAN |
分类号 |
H04L25/03;H04B17/00 |
主分类号 |
H04L25/03 |
代理机构 |
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代理人 |
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地址 |
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