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没收到attach complete,算附着成功吗?

来自知识星球

没收到attach complete,算附着成功吗?

Q:没收到attach complete,算附着成功吗?【看到NSA的附着流程,网络下发attach accept的之前,终端发了关机请求,没有attach

complete消息,这个算附着成功吗?但网络是下发了attach accept消息的。】

A:查了下规范,应该不算的。Upon receiving an ATTACH COMPLETE message, the MME shall stop timer T3450, enter state EMM-

REGISTERED and consider the GUTI sent in the ATTACH ACCEPT message as valid.

--收到complete,MME这边才进入注册态。

ATTACH COMPLETE message together with an ACTIVATE DEFAULT EPS BEARER CONTEXT ACCEPT message contained in the

ESM message container information element to the network.

---而且complete还包含了对缺省承载接受的确认。

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