发明授权
- 专利标题： Almost-blank subframe configuration detection in heterogeneous networks
- 专利标题（中）： 异构网络中几乎空白的子帧配置检测
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申请号： US13384440申请日： 2011-11-09
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公开(公告)号： US09179396B2公开(公告)日： 2015-11-03
- 发明人: Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
- 申请人： Jianfeng Wang , Matthias Kamuf , Shaohua Li , Fredrik Nordström
- 申请人地址： SE Stockholm
- 专利权人： Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人： Telefonaktiebolaget L M Ericsson (publ)
- 当前专利权人地址： SE Stockholm
- 代理机构： Coats & Bennett, P.L.L.C.
- 国际申请： PCT/CN2011/081993 WO 20111109
- 国际公布： WO2013/067694 WO 20130516
- 主分类号： H04W48/16
- IPC分类号： H04W48/16 ; H04L5/00 ; H04L27/26 ; H04W84/04 ; H04J11/00 ; H04W24/08 ; H04B7/04 ; H04W52/00 ; H04W72/00
摘要：
A method for detecting an Almost-Blank Subframe (ABS) configuration for an interfering macro cell of a heterogeneous network is implemented in a wireless terminal. For one or more resource blocks in a received signal, a first power metric is calculated as a function of channel response estimates determined for predicted cell-specific (or common) reference signal (CRS) resource element locations in a plurality of symbols. For the one or more resource blocks in the received signal, a second power metric is calculated as a function of channel response estimates determined for the predicted CRS resource element locations in a single one of the plurality of symbols. A difference between the first and second power metrics is compared to a threshold, and responsive to the comparison a determination is made as to whether the macro cell is operating in a Multicast and Broadcast Single Frequency Network (MBSFN) mode or a non-MBSFN mode.
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