- 专利标题: Channel sounding for frequency division duplex system
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申请号: US15248292申请日: 2016-08-26
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公开(公告)号: US09986583B2公开(公告)日: 2018-05-29
- 发明人: Jianglei Ma , Ming Jia
- 申请人: Huawei Technologies Co., Ltd.
- 申请人地址: CN Shenzhen
- 专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人: HUAWEI TECHNOLOGIES CO., LTD.
- 当前专利权人地址: CN Shenzhen
- 代理机构: Slater Matsil, LLP
- 主分类号: H04W24/02
- IPC分类号: H04W24/02 ; H04W72/12 ; H04L1/00 ; H04L5/00 ; H04L5/14
摘要:
System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
公开/授权文献
- US20160366698A1 Channel Sounding for Frequency Division Duplex System 公开/授权日:2016-12-15