Methods and apparatus for improving circuit switching (CS) backoff performance in LTE networks are described. In one aspect, the UE can perform the RAU procedure before executing the CS call setup procedure when the UE has been occupied on a non DTM GERAN target after failure to access the redirection target. On the other hand, the MME may determine whether to perform PS based on the ISR state associated with the user terminal. On the other hand, the eNB can send information to the user terminal associated with the PS suspension.
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【国外来华专利技术】...
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