SERVICE CONTROL METHOD, MOBILITY MANAGEMENT ENTITY, AND MOBILE SWITCHING CENTER
First Claim
1. A service control method for use by a mobility management entity (MME) of a mobile network supporting Internet Protocol (IP) multimedia subsystem (IMS) voice over packet-switched (PS) session (IMS Voice Over PS session), the method comprising:
- determining one or more user equipments;
in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, so as to trigger the one or more user equipments to send a registration request message or a combined registration request message to the MME, and when the registration request message or the combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration message indicates to the one or more user equipments that voice over Internet Protocol IP multimedia subsystem IMS (VoIMS) is unavailable;
orin a scenario of solicited circuit switched fallback CSFB offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration accept message indicates to the one or more user equipments that VoIMS is unavailable.
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Accused Products
Abstract
Embodiments of the present invention provide a service control method, a mobility management entity, and a mobile switching center, and the method includes: determining one or more user equipments; in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, and when a registration request message or a combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments; or in a scenario of solicited circuit switched fallback (CSFB) offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, so that a user equipment can communicate via a CS domain rather than suffering a voice call failure.
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Citations
42 Claims
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1. A service control method for use by a mobility management entity (MME) of a mobile network supporting Internet Protocol (IP) multimedia subsystem (IMS) voice over packet-switched (PS) session (IMS Voice Over PS session), the method comprising:
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determining one or more user equipments; in a scenario of unsolicited circuit switched fallback (CSFB) offloading, sending a notification message to the one or more user equipments, so as to trigger the one or more user equipments to send a registration request message or a combined registration request message to the MME, and when the registration request message or the combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration message indicates to the one or more user equipments that voice over Internet Protocol IP multimedia subsystem IMS (VoIMS) is unavailable;
orin a scenario of solicited circuit switched fallback CSFB offloading, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration accept message indicates to the one or more user equipments that VoIMS is unavailable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A service control method for use by a mobile switching center (MSC), the method comprising:
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receiving an offload indication sent by a mobility management entity (MME), wherein the offload indication is used to notify that one or more users are users for whom circuit switched fallback (CSFB) offloading has been performed; determining, according to the offload indication, that the user who has been CSFB-offloaded is an offloaded user; and when a voice call made by the offloaded user ends, adding return information to a clearing message sent to a base station or a radio network controller, so that the base station of the radio network controller performs a fast-return procedure, wherein the return information comprises fourth generation (4G) public land mobile network (PLMN) information and a CSFB indication. - View Dependent Claims (12, 13)
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14. A service control method for use by a mobility management entity (MME) of a mobile network supporting Internet Protocol IP multimedia subsystem (IMS) voice over packet-switched (PS) session (IMS Voice Over PS session), the method comprising:
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determining one or more user equipments, wherein the one or more user equipments are user equipments supporting voice over Long Term Evolution (VoLTE); in a scenario of unsolicited switch to voice over IMS (VoIMS), sending a notification message to the one or more user equipments, so as to trigger the one or more user equipments to send a registration request message or a combined registration request message to the MME, and when the registration request message or the combined registration request message is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration message indicates to the one or more user equipments that VoIMS is available;
orin a scenario of solicited switch to VoIMS, when a registration request message or a combined registration request message sent by the one or more user equipments is received, sending a registration accept message or a combined registration accept message to the one or more user equipments, wherein the registration accept message or the combined registration accept message indicates to the one or more user equipments that VoIMS is available. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A service control method for use by a mobile switching center (MSC), the method comprising:
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receiving a restore indication sent by a mobility management entity (MME); and determining to delete one or more users according to the restore indication, wherein the one or more users are users for whom circuit switched fallback (CSFB) offloading has been performed. - View Dependent Claims (21)
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22. A mobility management entity (MME) of a mobile network supporting Internet Protocol (IP) multimedia subsystem (IMS) voice over packet-switched PS session (IMS Voice Over PS session), the MME comprising:
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a control unit, configured to determine one or more user equipments; a receiving unit, configured to receive a registration request message or a combined registration request message sent by the one or more user equipments, wherein the control unit is further configured to determine a registration accept message or a combined registration accept message, wherein the registration accept message or the multiple combined registration messages are used to indicate to the one or more user equipments that voice over Internet Protocol IP multimedia subsystem IMS (VoIMS) is unavailable; and a sending unit, configured to send the registration accept message or the combined registration accept message to the one or more user equipments. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A mobile switching center (MSC), comprising:
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a receiving unit, configured to receive an offload indication sent by a mobility management entity (MME); a control unit, configured to; determine, according to the offload indication, that a user for whom circuit switched fallback (CSFB) offloading has been performed is an offloaded user, and add return information to a clearing message, wherein the return information comprises fourth generation (4G) public land mobile network (PLMN) information and a CSFB indication; and a sending unit, configured to send the clearing message to a base station or a radio network controller. - View Dependent Claims (34, 35)
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36. A mobility management entity (MME) of a mobile network supporting Internet Protocol (IP) multimedia subsystem (IMS) voice over packet-switched (PS) session (IMS Voice Over PS session), the MME comprising:
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a control unit, configured to determine one or more user equipments, wherein the one or more user equipments are user equipments supporting voice over long-term evolution (VoLTE); a receiving unit, configured to receive a registration request message or a combined registration request message sent by the one or more user equipments, wherein the control unit is further configured to determine a registration accept message or a combined registration accept message, wherein the registration accept message or the multiple combined registration messages are used to indicate to the one or more user equipments that voice over Internet Protocol IP multimedia subsystem IMS (VoIMS) is available; and a sending unit, configured to send the registration accept message or the combined registration accept message to the one or more user equipments. - View Dependent Claims (37, 38, 39, 40, 41)
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42. A mobile switching center (MSC), comprising:
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a receiving unit, configured to receive a restore indication sent by a mobility management entity (MME); and a control unit, configured to determine and delete one or more users according to the restore indication, wherein the one or more users are users for whom circuit switched fallback (CSFB) offloading has been performed.
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Specification