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非合作定位技术不依靠运营商网络,其定位所需的参数需要测量者自己获取。为了分析非合作定位应用在宽带码分多址(WCDMA)系统中的适应性,通过3GPP标准协议研究了在随机接入过程中携带有到达时间,到达时差,信号强度和身份识别等定位参数的载体,并且从中比较了各种定位参数提取的难易程度,比较的结果表明,到达时差相对于到达时间和信号强度可以较容易从物理随机接入信道的前缀码中提取。用户身份信息可从身份识别过程提取。
Non-cooperative positioning technology does not depend on the operator’s network, and the parameters required for its positioning need to be obtained by the surveyors themselves. In order to analyze the adaptability of non-cooperative positioning applications in wideband code division multiple access (WCDMA) system, the 3GPP standard protocol is used to study the performance of non-cooperative positioning applications such as arrival time, arrival time difference, signal strength and identity The comparison results show that the arrival time difference can be easily extracted from the physical random access channel prefix code with respect to the arrival time and signal strength. User identification information can be extracted from the identification process.