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今日看资料，看到比较明确的解说cdma空闲切换的概念，拉出来给大家共享一下。这样也好最这个概念有个明确的了解。内容如下：
An idle mobile always demodulates the best available signal
• In idle mode, it isn’t possible to do soft handoff and listen to multiple sectors or base stations at the same time -- the paging channel information stream is different on each sector, not synchronous -- just like ABC, NBC, CBS, and CNN TV news programs aren’t in word-sync for simultaneous viewing
• Since a mobile can’t combine signals, the mobile must switch quickly, always enjoying the best available signal
The mobile’s pilot searcher is constantly checking neighbor pilots
If the searcher notices a better signal, the mobile continues on the current paging channel until the end of the current superframe, then instantly switches to the paging channel of the new signal
For example: The system doesn’t know the mobile did this!(Does NBC’s Tom Brokaw know you just switched your TV to CNN?)
On the new paging channel, if the mobile learns that registration isrequired, it re-registers on the new sector
Idle Mode on the Paging Channel: Meet the Neighbors, track the Strongest Pilot
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很权威哦，O(∩_∩)O~
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