Called service processing method, mobility management entity, and home subscriber server

• US 10,405,213 B2
• Filed: 05/18/2017
• Issued: 09/03/2019
• Est. Priority Date: 11/19/2014
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Ni, Guoyu, Wang, Rui, Xi, Guobao
• Primary Examiner(s): Lin, Will W
• Application Number:
  US15/599,246
• Publication Number:
  US 20170257784A1
• Time in Patent Office: 838 Days
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 36/0022 for transferring data sessions between adjacent core network technologies
• CPC Class Codes: H04W 36/00224 between packet switched [PS] and circuit switched [CS] network technologies, e.g. circuit switched fallback [CSFB]
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

The present invention discloses a called service processing method, a mobility management entity, and a home subscriber server. The method includes: generating, by an MME, VOPS capability indication information according to a faulty state of a PGW after determining that the PGW in which UE is located is faulty, where the VOPS capability indication information is used to indicate that a network in which the UE is located does not support VOPS; and sending, by the MME, the VOPS capability indication information to an HSS. According to the called service processing method, the mobility management entity, and the home subscriber server provided in embodiments of the present invention, a called service is not affected after a PGW is faulty.

Claims

1. A called service processing method, comprising:

generating, by a mobility management entity (MME), voice over packet switch (VOPS) capability indication information in response to determining that a packet data network gateway (PGW) corresponding to a user equipment is faulty, wherein the VOPS capability indication information indicates that a network in which the user equipment is located does not support VOPS; and

sending, by the MME, the VOPS capability indication information to a home subscriber server (HSS);

wherein before generating the VOPS capability indication information, the method further comprises;

determining, by the MME, that the PGW is faulty; and

sending, by the MME, a network element notification message to the HSS, wherein the network element notification message indicates that the HSS needs to query domain selection data in real time.

2. The method according to claim 1, wherein generating the VOPS capability indication information comprises:

after determining that the PGW is faulty, receiving, by the MME, a domain selection data query request from the HSS, and generating the VOPS capability indication information based on the domain selection data query request and based on the PGW being faulty.

3. A mobility management entity (MME), comprising a processor and a non-transitory computer readable storage medium having processor-executable instructions stored thereon, wherein the processor-executable instructions, when executed by the processor, facilitate performance of the following:

determining that a packet data network gateway (PGW) corresponding to a user equipment is faulty;

generating voice over packet switch (VOPS) capability indication information in response to determining that the PGW is faulty, wherein the VOPS capability indication information indicates that a network in which the user equipment is located does not support VOPS; and

sending the VOPS capability indication information to a home subscriber server (HSS);

wherein the processor-executable instructions, when executed by the processor, further facilitate;

sending a network element notification message to the HSS after determining that the PGW is faulty and before generating the VOPS capability indication information, wherein the network element notification message indicates that the HSS needs to query domain selection data in real time.

4. The MME according to claim 3, wherein the processor-executable instructions, when executed, further facilitate:

after determining that the PGW is faulty, receiving a domain selection data query request from the HSS; and

wherein generating the VOPS capability indication information is based on the domain selection data query request and the PGW being faulty.

5. A home subscriber server (HSS), comprising a processor and a non-transitory computer readable storage medium having processor-executable instructions stored thereon, wherein the processor-executable instructions, when executed by the processor, facilitate performance of the following:

receiving voice over packet switch (VOPS) capability indication information from a mobility management entity (MME), wherein the VOPS capability indication information is generated by the MME based on a packet data network gateway (PGW) corresponding to a user equipment being faulty, and wherein the VOPS capability indication information indicates that a network in which the user equipment is located does not support VOPS; and

sending the VOPS capability indication information to an application server for instructing the application server to process a called service of the user equipment via circuit switched fallback (CSFB);

wherein the processor-executable instructions, when executed, further facilitate;

before receiving the VOPS capability indication information from the MME, receiving a domain selection data query notification from the application server; and

responding to the domain selection data query notification.

6. The HSS according to claim 5, wherein the processor-executable instructions, when executed, further facilitate:

sending a domain selection data query request to the MME;

wherein the VOPS capability indication information is generated by the MME according to the domain selection data query request and the PGW being faulty.

7. The HSS according to claim 6, wherein the processor-executable instructions, when executed, further facilitate:

before receiving the domain selection data query notification from the application server, receiving a network element notification message from the MME, wherein the network element notification message indicates that the HSS needs to query domain selection data in real time.