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    • 10. 发明授权
    • Methods and apparatus for position location in a wireless network
    • 无线网络中位置定位的方法和装置
    • US07706328B2
    • 2010-04-27
    • US11517119
    • 2006-09-06
    • Krishna Kiran MukkavilliFuyun LingGordon Kent WalkerMurali Ramaswamy Chari
    • Krishna Kiran MukkavilliFuyun LingGordon Kent WalkerMurali Ramaswamy Chari
    • H04W4/00H04W24/00
    • G01S5/0205H04L5/0053H04W24/00H04W64/00
    • Methods and apparatus for position location in a wireless network. In an aspect, a method is provided that includes determining whether a symbol to be transmitted is an active symbol, wherein the symbol comprises a plurality of subcarriers, and encoding identification information on a first portion of subcarriers if it is determined that the symbol is the active symbol. The method also includes encoding idle information on a second portion of subcarriers if it is determined that the symbol in not the active symbol. In an aspect, an apparatus includes detector logic configured to decode a plurality of symbols to determine identification information that identifies a plurality of transmitters, and to determine a plurality of channel estimate associated with the plurality of transmitters. The apparatus also includes position determination logic configured to calculate a device position based on the plurality of transmitters and the plurality of channel estimates.
    • 无线网络中位置定位的方法和装置。 一方面,提供了一种方法,其包括确定要发送的符号是否是活动符号,其中,所述符号包括多个子载波,并且如果确定所述符号是所述符号是所述符号,则对所述子载波的第一部分编码识别信息 活动符号 如果确定不在活动符号中的符号,则该方法还包括对子载波的第二部分上的空闲信息进行编码。 一方面,一种装置包括检测器逻辑,其被配置为对多个符号进行解码以确定标识多个发射机的识别信息,并且确定与多个发射机相关联的多个信道估计。 该装置还包括位置确定逻辑,其被配置为基于多个发射机和多个信道估计来计算设备位置。