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发明公开
CN101072415A 一种环路时延更新的方法及装置 有权 转让

一种环路时延更新的方法及装置
摘要：
本发明公开了一种环路时延更新的方法，为了解决环路时延更新不够实时的问题，本发明公开的方法包括：获取参考导频基站上报环路时延，接收终端测量的非参考导频的相位并获取匹配的PN，获取非参考导频终端上报环路时延，采用如下公式：RTD_i＝Bts_Report_RTD[Ref]+(PnPhase_i－64×PN_i)，其中RTD_i表示第i个非参考导频终端上报环路时延，Bts_Report_RTD[Ref]表示参考导频基站上报环路时延，PnPhase_i表示第i个非参考导频的相位，PN_i表示第i个非参考导频的PN，由于通过终端获取的非参考导频的相位以及匹配的PN，之后通过计算也可获得环路时延，再加上基站上报环路时延，因此环路时延更新更加及时。
摘要（英）：

The disclosed method is in use to solve issue that updating loop time delay (LTD) is not enough realtime performance. The method includes following steps: obtaining LTD reported from reference pilot base station, receiving phase of non-reference pilot measured by terminal, and obtaining matched PN, and obtaining LTD reported from non-reference pilot terminal; calculating by using formula RTD_i=Bts_Report_RTD[Ref]+(PnPhase_i-64XPN_i), and RTD_i as LTD reported from ith non-reference pilot terminal, Bts_Report_RTD[Ref] as LTD reported from reference pilot base station, PnPhase_i as phase of ith non-reference pilot, and PN_i as PN of ith non-reference pilot. Through terminal to obtain phase of non-reference pilot, matched PN, using calculation to obtain LTD, plus LTD reported from base station, the invention updates LTD on time much more than prior.

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