巧解死结,接通跨MSC(POOL)位置更新的呼叫

A Way to Achieve Successful Call While Called Subscriber Doing Location Update Across MSC(POOL)

手机从一个非POOL的MSC(或MSC POOL)的位置区移动到另一个非POOL的MSC(或MSC POOL)的位置区,进行位置更新过程中,无法收到寻呼消息,呼叫不能接通。现有呼叫流程和策略没有解决方案,在这种情况下,呼叫无法接通,就像一个死结,无法解开。根据路测数据统计,这类呼叫未接通在GSM网中占比在40%以上,在TD网占比超过60%。针对这类呼叫未接通情况进行研究,通过改进呼叫流程,巧妙解开死结,解决跨MSC(POOL)位置更新的呼叫未接通问题,改善了客户感知度,提高了网络接通率。

When a phone tansfers from a MSC（ or MSC POOL） to another MSC （or MSC POOL） doing location update, it can＇ t accept paging message, the call will be fail. There is no solution with present call process, the situation just like a fast knot hard to loosen. This kind of unconnected call accounts for 40% in GSM network and 60% in TD according to drive test statistics. The research is about this kind of unconnected call, improve the call process to achieve success calls when called subscriber doing location update across MSC（POOL）, help improving the customer experience and call completing rate.