Service processing method and related equipment
A business processing and business technology, applied in the communication field, can solve the problems of voice communication interruption, meaningless IP channel, waste of network resources, etc.
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Embodiment 1
[0035] Embodiment 1 of the present invention provides a service processing method, the method comprising:
[0036] Obtain information indicating whether the visited site supports access to CSoEPS via the evolved packet domain for CS domain services;
[0037] According to the information indicating whether the visited location supports CSoEPS, determine whether the interworking function IWF serving the UE is the IWF of the visited location or the IWF of the home location;
[0038] Use the determined IWF for business processing.
[0039] Wherein, the subject of execution of the method may be UE.
[0040] Wherein, using the determined IWF for business processing includes: if it is determined that the IWF serving the UE is the IWF of the visited location, sending a registration request to the IWF of the visited location; if it is determined that the IWF serving the UE is the home When the local IWF is located, a registration request is sent to the home IWF. If it is determined ...
Embodiment 2
[0046] refer to figure 2 , Embodiment 2 of the present invention provides a service processing method. When the UE is powered on and attached to the visited site, the UE obtains information indicating whether the visited site supports CSoEPS, and determines whether the IWF serving the UE is a visiting site according to the information indicating whether the visited site supports CSoEPS. The IWF of the locality or the IWF of the attributable locality, the method includes:
[0047] A1. The UE sends a non-access stratum NAS request message to the visited MME, and the NAS request message may be an Attach Request (attach request) or a TAU Request (tracking area update request).
[0048] A2. The MME sends a NAS acceptance message to the UE. The message carries information indicating whether the visited location supports CSoEPS. The information indicating whether the visited location supports CSoEPS may be an indication information element, such as a CSoEPS Supported information ele...
Embodiment 3
[0066] refer to image 3 Embodiment 3 of the present invention provides a service processing method. The difference between this method and Embodiment 2 is that the UE also acquires information indicating whether to allow the UE to establish an LBO bearer in the visited location, and according to whether the visited location supports The CSoEPS information and the information indicating whether the UE is allowed to establish an LBO bearer in the visited location are used to determine whether the IWF serving the UE is the IWF of the visited location or the IWF of the home location. The method includes:
[0067] B1. The UE sends a NAS request message to the visited MME, and the NAS request message may be an Attach Request (attach request) or a TAU Request (tracking area update request).
[0068] B2. The MME knows whether the visited location supports CSoEPS according to the preset information, and determines whether to allow the UE to establish an LBO bearer in the visited locat...
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