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    • 3. 发明授权
    • Method and apparatus for estimating time of arrival
    • 估计到达时间的方法和装置
    • US08437698B2
    • 2013-05-07
    • US12714249
    • 2010-02-26
    • Gengshi WuFeng LiNian PengShufan HuangJing Yang
    • Gengshi WuFeng LiNian PengShufan HuangJing Yang
    • H04B1/00
    • G01S5/0221G01S5/0215H04W56/0075H04W56/0085
    • Method and apparatus are provided for estimating Time of Arrival (“TOA”). The method includes: performing channel estimation according to a Normal Burst (“NB”) free of interference and a local training sequence and generating a channel estimate, performing TOA estimation according to the channel estimate, and adjusting a synchronization position of the current NB according to a TOA estimation result. Interference to signals is cancelled before the TOA estimation, thus overcoming energy estimate deviation arising from interference in a strongly interfering radio environment, as occurs in the prior art, and preventing the impact on the TOA estimation. The disclosed methods and apparatus provide for more accurate energy estimates in a strongly interfering radio environment. The technical solution under the present invention does not require adjustment of the method of adjusting the search window.
    • 提供了估计到达时间(“TOA”)的方法和装置。 该方法包括:根据无干扰的正常突发(“NB”)和本地训练序列进行信道估计,并产生信道估计,根据信道估计执行TOA估计,并根据信道估计调整当前NB的同步位置 到TOA估计结果。 在TOA估计之前,对信号的干扰被消除,从而克服由于在现有技术中发生的强干扰无线电环境中的干扰引起的能量估计偏差,并且防止对TOA估计的影响。 所公开的方法和装置在强干扰无线电环境中提供更准确的能量估计。 本发明的技术方案不需要调整搜索窗口的调整方法。