- 专利标题: ADAPTIVE CELL SHAPING IN CODEBOOK BASED FULL DIMENSION MULTIPLE INPUT-MULTIPLE OUTPUT COMMUNICATIONS
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申请号: US17274358申请日: 2018-09-10
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公开(公告)号: US20210344390A1公开(公告)日: 2021-11-04
- 发明人: Jianguo LONG , Hong REN , Ahmed NOUAH , Yongquan QIANG , Israfil BAHCECI
- 申请人: Telefonaktiebolaget LM Ericsson (publ)
- 申请人地址: SE Stockholm
- 专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人: Telefonaktiebolaget LM Ericsson (publ)
- 当前专利权人地址: SE Stockholm
- 国际申请: PCT/IB2018/056885 WO 20180910
- 主分类号: H04B7/0456
- IPC分类号: H04B7/0456 ; H04W16/28 ; H04W24/02
摘要:
Methods, network nodes and wireless device for setting an electrical tilt of an antenna array toward a distribution of wireless devices are disclosed. According to one aspect, a method includes for each of at least one sector of an area covered by the antenna array, determining a function of precoding matrix indicators, PMIs, received from a plurality of WDs in the sector. The method includes determining a current electrical tilt angle of the sector based on the function of PMIs. The method further includes comparing a difference between the current electrical tilt angle of the sector and a previously determined electrical tilt angle of the antenna array to a first threshold, and setting the electrical tilt angle of the antenna array based on the comparison.
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