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注册:2008-10-13
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发表于 2010-11-11 10:20:33 |只看该作者 |倒序浏览
请教个WCDMA中Radio link failure判决准则的问题:
在25.331协议中有如下描述
8.5.6        Radio link failure criteria and actions upon radio link failure
In CELL_DCH State, after receiving N313 consecutive "out of sync" indications from layer 1 for the established DPCCH or F-DPCH physical channel in FDD, and the physical channels associated with mapped DCCHs in TDD, the UE shall:
1>        start timer T313;
1>        upon receiving N315 successive "in sync" indications from layer 1 and upon change of UE state:
2>        stop and reset timer T313.
1>        if T313 expires:
2>        consider it as a "Radio link failure".
Periods in time where neither "in sync" nor "out of sync" is reported by layer 1 do not affect the evaluation of the number of consecutive (resp. successive) "in sync" or "out of sync" indications.
从协议上来,在D态同步的状态下,如果连续收到N313个"out of sync"时,需要启动T313,然后在T313定时器超时前,
是收到N315个 连续的 "in sync"就停止T313呢、还是说只要收齐N315个"in sync"就停止T313定时器呢?
consecutive 和 successive 这两个“连续”有什么不同吗?
谢谢先啦。

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