发明申请
US20100279707A1 TIME OF ARRIVAL (TOA) ESTIMATION FOR POSITIONING IN A WIRELESS COMMUNICATION NETWORK
有权
到达时间(TOA)无线通信网络中的定位估计
- 专利标题: TIME OF ARRIVAL (TOA) ESTIMATION FOR POSITIONING IN A WIRELESS COMMUNICATION NETWORK
- 专利标题(中): 到达时间(TOA)无线通信网络中的定位估计
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申请号: US12606037申请日: 2009-10-26
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公开(公告)号: US20100279707A1公开(公告)日: 2010-11-04
- 发明人: Sven Fischer , Muhammad Awais Amin , Douglas Neal Rowitch , Avneesh Agrawal , Raja S. Bachu , Ashwin Sampath
- 申请人: Sven Fischer , Muhammad Awais Amin , Douglas Neal Rowitch , Avneesh Agrawal , Raja S. Bachu , Ashwin Sampath
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 主分类号: H04W24/00
- IPC分类号: H04W24/00 ; H04B17/00
摘要:
Techniques for determining time of arrivals (TOAs) of signals in a wireless communication network are described. Each cell may transmit (i) synchronization signals on a set of contiguous subcarriers in the center portion of the system bandwidth and (ii) reference signals on different sets of non-contiguous subcarriers distributed across the system bandwidth. A UE may determine TOA for a cell based on multiple signals transmitted on different sets of subcarriers. The UE may perform correlation for a first signal (e.g., a synchronization signal) from the cell to obtain first correlation results for different time offsets. The UE may perform correlation for a second signal (e.g., a reference signal) from the cell to obtain second correlation results for different time offsets. The UE may combine the first and second correlation results and may determine the TOA for the cell based on the combined correlation results.
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