| 摘要 |
A user equipment is configured to perform an attach procedure by camping on a specific PLMN using a specific RAT. When receiving an attach reject due to a specific reject cause, the user equipment is configured to perform the attach procedure by camping on the specific PLMN using another RATs. When the attach procedure after RAT reselection fails, the user equipment is configured to perform the attach procedure by camping on another PLMN using one or multiple RATs.
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