Invention Grant
- Patent Title: Method of synchronizing with an uplink channel and a method of determining a propagation delay in a wireless communications system
- Patent Title (中): 与上行链路信道同步的方法和确定无线通信系统中的传播延迟的方法
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Application No.: US11318467Application Date: 2005-12-28
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Publication No.: US08089938B2Publication Date: 2012-01-03
- Inventor: Peter Bosch , Emad N. Farag , Sape J. Mullender , Alexander Nathues , Louis Gwyn Samuel
- Applicant: Peter Bosch , Emad N. Farag , Sape J. Mullender , Alexander Nathues , Louis Gwyn Samuel
- Applicant Address: FR Paris
- Assignee: Alcatel Lucent
- Current Assignee: Alcatel Lucent
- Current Assignee Address: FR Paris
- Agency: Harness, Dickey & Pierce
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04B15/00

Abstract:
A method of synchronizing with an uplink channel and a method of determining a propagation delay in a wireless communications system are provided. In the example method of synchronizing, a propagation delay between a target base station and a mobile station is calculated. Then, the calculated propagation delay is sent to the target base station. In the example method of determining a propagation delay, a first signal is received indicating a first measured chip offset between a downlink channel of a serving base station and a pilot signal of the target base station. A second signal indicating a second measured chip offset between an uplink channel of the mobile station and a pilot signal of the target base station is then received. A propagation delay between the target base station and the mobile station is calculated based at least in part on the first and second measured chip offsets.
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