| 摘要 |
Embodiments of the present invention disclose a method for processing a downlink circuit switched CS service and a mobility management entity. The method includes: receiving, by an MME, a notification message sent by an MSC/VLR after the MSC/VLR is restarted, where the notification message is used to indicate a downlink CS service to the MME for user equipment UE; when the UE is in an idle state, suspending, by the MME, a CS fallback procedure triggered by the downlink CS service; requesting, by the MME, the UE to enter a connected state; requesting, by the MME, the UE to initiate a combined location update procedure, so that the UE completes registration in a CS domain; and instructing, by the MME after the UE completes the registration in the CS domain, the UE to perform the CS fallback procedure triggered by the downlink CS service. According to the method for processing a downlink circuit switched CS service and the mobility management entity of the embodiments of the present invention, the UE is enabled to preferentially complete the registration in the CS domain, and then the UE is instructed to perform the CS fallback procedure triggered by the downlink CS service, so that procedure collision processing of the UE and a network side can be avoided. |
