WO2022012161A1

WO2022012161A1 - Method, apparatus and system for processing short message delivery failure

Info

Publication number: WO2022012161A1
Application number: PCT/CN2021/094982
Authority: WO
Inventors: 龚向荣; 缪永生; 王健
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-07-16
Filing date: 2021-05-20
Publication date: 2022-01-20
Also published as: CN114025315A

Abstract

Disclosed are a method, apparatus and system for processing a short message delivery failure, which relate to the technical field of communications. The method comprises: after short message delivery to a UE fails, a first IP-SM-GW locally storing a short message delivery failure indication of the UE; after determining that the UE is reachable, the first IP-SM-GW acquiring the locally stored short message delivery failure indication of the UE; and after acquiring the short message delivery failure indication of the UE, the first IP-SM-GW triggering an SMSC to re-deliver, to the UE, a pre-cached short message, the delivery of which has failed.

Description

Method, device and system for processing failure of short message delivery

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with the application number of 202010688520.1 and the filing date of July 16, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

technical field

The present application relates to the technical field of the communication field, and in particular, to a method, device, and system for processing a short message delivery failure.

Background technique

Internet Protocol (Internet Protocol, IP) Multimedia Subsystem (IP Multimedia Subsystem, IMS) is an IP-based network architecture proposed by the 3rd Generation Partnership Project (3GPP), which builds an open and The flexible business environment supports multimedia applications and provides users with rich multimedia services.

Short Message Service (Short Message Service, SMS) is one of the basic telecommunication services in the circuit domain, and is widely used in traditional cellular networks. With the wide application of IP networks, the IMS system has introduced the Internet Protocol Short Message Gateway (IP-Short-Message-Gateway, IP-SM-GW, short message gateway for short), which can realize the interworking of IP short messages and circuit domain short messages. At the same time, the communication between instant messages and short messages can also be realized. Figure 1 is an overall system architecture diagram of the IP-SM-GW during SMS intercommunication. The IP-SM-GW provides protocol interaction for sending and receiving short messages between an IP-based user terminal (User Equipment, UE) and a Short Message Service Center (Short Message Service Center, SMSC). IP-SM-GW applies Mobile Application Part (MAP) protocol to connect Short Message Gateway Mobile Switching Center (Gateway Mobile Switching Center, SMS-GMSC) and Short Message Service Interworking MSC (Short Message Service Interworking MSC, SMS- IWMSC), which communicates with the UE using IMS messages in the traditional short message format. In the IMS core network, the IP-SM-GW logically acts as an Application Server (AS), and is connected to the IMS by a standard IMS Service Control (IMS Service Control) based on the Session Initiation Protocol (SIP). , ISC) interface. The IMS network includes a Serving call session control Function (SCSCF) and a Proxy call session control Function (PCSCF).

SUMMARY OF THE INVENTION

The main purpose of the embodiments of the present application is to provide a method, device and system for processing a short message delivery failure, which is aimed at effectively and accurately delivering a previously unsuccessful delivery without requiring the cooperation of multiple network elements and supporting a subscription/notification mechanism. SMS.

An embodiment of the present application provides a method for processing a short message delivery failure, including: a first IP-SM-GW locally saves the UE's short message delivery failure indication after the UE's short message delivery fails; the first IP-SM-GW After determining that the UE is reachable, the SM-GW obtains the locally stored short message delivery failure indication of the UE; the first IP-SM-GW triggers the SMSC to send the message to the UE after obtaining the short message delivery failure indication of the UE. The UE re-delivery the pre-cached short message that failed to be delivered.

The embodiment of the present application provides a method for processing a short message delivery failure, including: a first IP-SM-GW saves the UE's short message delivery failure indication to a local and an HLR or HSS after the UE's short message delivery fails; After determining that the UE is reachable, the first IP-SM-GW acquires the locally stored short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, triggers the SMSC to send a new message to the UE. Deliver the pre-cached short message that fails to deliver; or, after the first IP-SM-GW is abnormal, the second IP-SM-GW obtains the HLR or the HSS after determining that the UE is reachable and saves The short message delivery failure indication of the UE is obtained, and after acquiring the short message delivery failure indication of the UE, the SMSC is triggered to re-deliver the pre-cached short message delivery failure to the UE.

An embodiment of the present application provides an apparatus for processing a short message delivery failure. The apparatus includes: a storage module configured to locally store the UE's short message delivery failure in a first IP-SM-GW after the UE's short message delivery fails. an instruction; an acquiring module is used to acquire the locally stored short message delivery failure indication of the UE after the first IP-SM-GW determines that the UE is reachable; a triggering module is used to acquire the short message of the UE after acquiring the short message of the UE. After the delivery failure is indicated, the SMSC is triggered to re-deliver the pre-cached short message of delivery failure to the UE.

An embodiment of the present application provides a system for processing a short message delivery failure. The system includes: a first IP-SM-GW, configured to save the UE's short message delivery failure indication to a local after the UE's short message delivery fails. and HLR or HSS, and after determining that the UE is reachable, acquire the locally stored short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, trigger the SMSC to re-deliver the pre-delivery message to the UE. Cached short messages that fail to deliver; the second IP-SM-GW is used to obtain the stored information stored in the HLR or the HSS after the first IP-SM-GW is abnormal and it is determined that the UE is reachable. The short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, the SMSC is triggered to re-deliver the pre-cached short message delivery failure to the UE.

Description of drawings

Fig. 1 is the overall system architecture diagram of IP-SM-GW during SMS intercommunication in some cases;

Fig. 2 is a process flow chart of the delivery failure of the final call short message and the post-delivery failure in some situations;

3 is a first schematic flowchart of a method for processing a short message delivery failure provided by an embodiment of the present application;

4 is a second schematic flowchart of a method for processing a short message delivery failure provided by an embodiment of the present application;

5 is a flow chart of completing accurate redelivery according to a locally stored short message delivery failure indication in an IP-SM-GW non-disaster tolerance scenario provided by an embodiment of the present application;

Fig. 6 is the flow chart of the delivery failure indication that the IP-SM-GW of the terminal call short message delivery failure provided by the embodiment of the present application saves the delivery failure;

7 is a flow chart of notifying a terminal that it is available in combination with a delivery failure indication in an IP-SM-GW disaster recovery scenario provided by an embodiment of the present application;

8 is a flowchart of re-delivering the final call short message and clearing the delivery failure indication provided by the embodiment of the present application;

FIG. 9 is a schematic structural block diagram of an apparatus for processing a short message delivery failure provided by an embodiment of the present application.

detailed description

It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

In the following description, suffixes such as 'module', 'component' or 'unit' used to represent elements are used only to facilitate the description of the present application, and have no specific meaning per se. Thus, "module", "component" or "unit" may be used interchangeably.

The inventor found that: for the short message termination call process, in some cases, the process flow of the termination call short message delivery failure and the post-delivery failure processing process is shown in Figure 2, including the following steps:

Step 201, the short message service center SMSC sends a final call short message delivery (MAP_MT_Forward_SM) request to the IP-SM_GW;

Step 202, the IP-SM-GW sends a SIP short message (Message) to the SCSCF;

Step 203, the SCSCF forwards the SIP short message (Message) to the PCSCF;

Step 204, the PCSCF forwards the SIP short message (Message) to the UE;

Step 205, due to the mobility of the terminal, there may be situations such as the terminal being unreachable and unresponsive;

Step 206, PCSCF receives or actively generates a failure response, such as a SIP 4xx/5xx/6xx response message;

Step 207, the PCSCF forwards the failure response to the SCSCF;

Step 208, the SCSCF forwards the failure response to the IP-SM-GW;

Step 209, the IP-SM-GW sends the short message delivery failure response (MAP_MT_Forward_SM_Rsp) of this final call to the short message service center;

Step 210, the short message service center locally caches the unsuccessfully delivered short messages;

Step 211, IP-SM-GW initiates user reachable subscription (Subscribe (UE Reachability)) to Home Location Register (Home Location Register, HLR)/Home Subscriber Server (Home subscriber Server, HSS);

Step 212, when the terminal becomes available again, such as attaching to an available wireless network, such as restarting and recovering, the terminal will initiate a registration request to the IMS network;

Step 213, the HLR discovers the user registration, and sends a notification message to the IP-SM-GW to inform the IP-SM-GW that the user is reachable (Notification (UE Reachability));

Step 214, after receiving the notification message, the IP-SM-GW sends a request to receive a short message (MAP_Ready_For_ShortMessage, also known as MAP_Ready_For_SM) to the HLR/HSS;

Step 215, after receiving the MAP_Ready_For_SM request, the HLR/HSS returns a ready to receive short message response (MAP_Ready_For_SM Rsp) to the IP-SM-GW;

Step 216, the HLR will send (MAP_Alert_Service_Centre) request to notify the SMS service center, to notify the SMS service center that the terminal is available;

Step 217, after receiving the MAP_Alert_Service_Centre request, the SMS service center returns a response (MAP_Alert_Service_Centre_Rsp) to the HLR;

Step 218, the short message service center decides to re-deliver the locally cached short message according to the MAP_Alert_Service_Centre message.

It can be seen from the above process that after the delivery of the final call SMS fails, when the terminal is available, according to the user reachable subscription, the HLR will notify the SMS service center of the available messages of the terminal, thereby completing the SMS service center to re-deliver the previously unsuccessfully delivered SMS messages. . This solution has at least the following problems: (1) Multi-network elements are required to cooperate and support subscription/notification mechanism, and user reachable subscription and notification messages are added between IP-SM-GW and HLR to complete the re-delivery of SMS service center. (2) For disaster recovery scenarios, the HLR will not be able to notify the standby IP-SM-GW, so it will not be able to complete the redelivery of the undelivered short messages before.

In this embodiment of the present application, when the final call short message delivery fails, the IP-SM-GW locally saves the short message delivery failure indication, and saves the short message delivery failure indication to the HLR or HSS in the format of transparent data. When the IP-SM-GW is not abnormal, it can obtain the locally saved short message delivery failure indication, or when the IP-SM-GW is abnormal, it can obtain the short message delivery failure indication by parsing the transparent data downloaded from the HLR or HSS. In this way, the IP-SM-GW can combine the terminal available information and the SMS delivery failure indication, and accurately send the terminal reachable message to the SMS service center, so that the SMS service center can re-deliver the previously cached unsuccessfully delivered SMS. The embodiment of the present application does not rely on the logic processing of other network elements, and implements accurate re-delivery after a short message delivery fails in disaster recovery and non-disaster recovery scenarios.

FIG. 3 is a first schematic flowchart of a method for processing a short message delivery failure provided by an embodiment of the present application. As shown in FIG. 3 , the method may include:

Step S301: The first IP-SM-GW locally saves the UE's short message delivery failure indication after the UE's short message delivery fails.

Generally, when the UE is unreachable and has no response, the short message delivery failure problem of the UE will occur. At this time, the first IP-SM-GW will receive a message delivery failure response message. After receiving the failure response message, the first IP-SM-GW will The IP-SM-GW locally stores the short message delivery failure indication of the UE.

In addition, the first IP-SM-GW sends a final call short message delivery response to the SMSC, notifying the SMSC that the short message delivery of the UE fails, so that the SMSC caches the short message of the UE that has not been successfully delivered.

Step S302: After determining that the UE is reachable, the first IP-SM-GW obtains the locally stored short message delivery failure indication of the UE.

When the terminal becomes available again, such as attaching to an available wireless network, restarting and recovering, and if the first IP-SM-GW is not abnormal, it will receive a registration request initiated by the UE to the IMS network, and the first IP-SM-GW will receive a registration request. - The GW can obtain the locally stored short message delivery failure indication of the UE.

Step S303: After obtaining the short message delivery failure indication of the UE, the first IP-SM-GW triggers the SMSC to re-deliver the pre-cached short message delivery failure to the UE.

Specifically, the first IP-SM-GW sends the information that the UE is reachable to the SMSC via the HLR or the HSS, so that the SMSC can re-deliver the pre-buffered short message to the UE according to the information that the UE is reachable.

After receiving the short message delivery success response message, the first IP-SM-GW may delete the locally stored short message delivery failure indication of the UE to avoid re-delivery.

Considering the possibility of abnormality in the first IP-SM-GW, if only the short message delivery failure indication of the UE is stored locally, when the abnormality occurs in the first IP-SM-GW, it will not be able to re-deliver the previous message. Undelivered SMS messages. To solve this problem, the first IP-SM-GW in this embodiment may also save the short message delivery failure indication of the UE to the HLR or the HSS, so that when the first IP-SM-GW is abnormal, The second IP-SM-GW used for disaster recovery can obtain the short message delivery failure indication of the UE from the HLR or the HSS, and trigger the SMSC to re-deliver the pre-cached short message delivery failure to the UE, Realize re-delivery of previously undelivered SMS messages.

In this embodiment, when the short message delivery fails, the short message delivery failure indication is saved locally and in the HLR or HSS, so that when the terminal is reachable, the short message delivery failure indication saved in the local or the HLR or HSS can be used to simply and effectively implement a new Messages that have not been successfully delivered before are delivered.

FIG. 4 is a second schematic flowchart of a method for processing a short message delivery failure provided by an embodiment of the present application. As shown in FIG. 4 , the method may include:

Step S401: After the UE's short message delivery fails, the first IP-SM-GW saves the UE's short message delivery failure indication locally and in the HLR or HSS.

Generally, when the UE is unreachable and has no response, the short message delivery failure problem of the UE will occur. At this time, the first IP-SM-GW will receive a message delivery failure response message. After receiving the failure response message, the first IP-SM-GW will The IP-SM-GW locally stores the short message delivery failure indication of the UE. In addition, in order to still realize short message re-delivery when the first IP-SM-GW is abnormal, the first IP-SM-GW in this embodiment also saves the short message delivery failure indication of the UE to the HLR or other device. The HSS, specifically, the first IP-SM-GW generates transparent data including the UE's short message delivery failure indication, and saves the transparent data including the UE's short message delivery failure indication to the HLR or the HSS .

In this embodiment, the first IP-SM-GW will send a final call short message delivery response to the SMSC, informing the SMSC that the delivery of the short message of the UE has failed, so that the SMSC caches the short message of the UE that has not been successfully delivered, so that it can be used by the UE. to re-deliver the cached SMS message.

Step S402: After determining that the UE is reachable, the first IP-SM-GW acquires the locally stored short message delivery failure indication of the UE, and after acquiring the UE's short message delivery failure indication, triggers the SMSC to send the message to the UE. The UE re-deliveries the pre-cached short message that fails to deliver, or, when the first IP-SM-GW is abnormal, the second IP-SM-GW obtains the HLR or the The HSS stores the short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, triggers the SMSC to re-deliver the pre-cached short message delivery failure to the UE.

When the terminal becomes available again, such as attaching to an available wireless network, restarting and recovering, and if the first IP-SM-GW is not abnormal, it will receive a registration request initiated by the UE to the IMS network, and the first IP-SM-GW will receive a registration request. - The GW can obtain the locally stored short message delivery failure indication of the UE, and then send the UE reachability information to the SMSC via the HLR or HSS, so that the SMSC can re-deliver the pre-cached short message delivery failure to the UE according to the UE reachability information, And after successful delivery, the first IP-SM-GW deletes the stored short message delivery failure indication of the UE, that is, deletes the locally stored short message delivery failure indication of the UE, and deletes the UE's short message delivery failure indication stored in the HLR or HSS. SMS delivery failure indication. If the first IP-SM-GW is abnormal, the second IP-SM-GW can obtain the short message delivery failure indication of the UE from the HLR or the HSS, and trigger the SMSC to re-deliver the pre-cache to the UE Specifically, after determining that the UE is reachable, the second IP-SM-GW obtains from the HLR or the HSS transparent data including the UE's short message delivery failure indication, and parses it by parsing For the transparent data, the short message delivery failure indication is obtained, and after obtaining the short message delivery failure indication of the UE, the second IP-SM-GW sends the UE reachable information to the SMSC via the HLR or the HSS, So that the SMSC can re-deliver the pre-cached short message that fails to be delivered to the UE according to the reachable information of the UE, so as to realize the re-delivery of the short message that has not been successfully delivered before, and after the delivery is successful, the second IP-SM- The GW deletes the stored short message delivery failure indication of the UE, that is, deletes the short message delivery failure indication of the UE stored in the HLR or HSS.

Fig. 5 is a flow chart of completing accurate re-delivery according to the locally stored short message delivery failure indication under the IP-SM-GW non-disaster tolerance scenario provided by the embodiment of the present application, as shown in Fig. 5, which may include the following steps:

Step 501, the short message service center SMSC sends a final call short message delivery (MAP_MT_Forward_SM) request to the IP-SM_GW1;

Step 502, IP-SM-GW1 sends a SIP short message (Message) to the SCSCF;

Step 503, the SCSCF forwards the SIP short message (Message) to the PCSCF;

Step 504, the PCSCF forwards the SIP short message (Message) to the UE;

Step 505, due to the mobility of the terminal, there may be situations such as the terminal being unreachable and unresponsive;

Step 506, PCSCF receives or actively generates a failure response, such as a SIP 4xx/5xx/6xx response message;

Step 507, the PCSCF forwards the failure response to the SCSCF;

Step 508, the SCSCF forwards the failure response to the IP-SM-GW;

Step 509, after the IP-SM-GW1 receives the failure response, it will save the short message delivery failure instruction locally, so that when the terminal is available, it will notify the short message service center to re-deliver in conjunction with the short message delivery failure instruction;

Step 510, the IP-SM-GW1 sends a response to the short message delivery failure of the final call to the short message service center;

Step 511, the short message service center needs to cache the locally unsuccessfully delivered short messages;

Step 512, when the terminal becomes available again, such as attaching to an available wireless network, such as restarting and recovering, the terminal will initiate a registration request (Register) to the IMS network;

Step 513, the PCSCF forwards the registration request (Register) to the SCSCF;

Step 514, the SCSCF triggers a registration request (Register) to the IP-SM-GW;

Steps 515 to 517, the IP-SM-GW returns a registration success response (200OK), and reaches the UE through the SCSCF/PCSCF;

Step 518, since IP-SM-GW1 receives a new registration indicating that the terminal is available, and locally saves the message delivery failure indication, at this time IP-SM-GW1 will send a request to receive a short message (MAP_Ready_For_ShortMessage, also known as MAP_Ready_For_SM) to the HLR or HSS;

Step 519, after receiving the MAP_Ready_For_SM request, the HLR or HSS returns a ready to receive short message response (MAP_Ready_For_ShortMessage_Rsp, also known as MAP_Ready_For_SM_Rsp) to the IP-SM-GW;

Step 520, the HLR or HSS will send a (MAP_Alert_Service_Centre) request to notify the short message service center that the terminal is reachable;

Step 521, after receiving the MAP_Alert_Service_Centre request, the short message service center returns a response (MAP_Alert_Service_Centre_Rsp) to the HLR or HSS;

Step 522, the short message service center decides to re-deliver the locally cached short message according to the MAP_Alert_Service_Centre message.

It can be seen from the above process that the IP-SM-GW combines the locally saved short message delivery failure indication, when the terminal is available, sends the terminal available message to the short message service center, so as to accurately notify the short message service center to re-deliver the previously unsuccessfully delivered short message , realizes that after the delivery of the final call SMS fails in the IP-SM-GW non-disaster tolerance scenario, the IP-SM-GW notifies the SMS service center to accurately re-deliver the SMS, only relying on the IP-SM-GW, not on the HSS or HLR, for the HSS Or HLR has no special logic.

For disaster recovery scenarios, the IP-SM-GW does not have a local message delivery failure indication. In order to solve the IP-SM-GW disaster recovery scenario, after the final call message delivery fails, the IP-SM-GW notifies the SMS service center of accurate redelivery. The problem is that the short message delivery failure indication is stored in the HSS or HLR in this embodiment of the present application. The following describes in detail the short message re-delivery in the disaster recovery scenario with reference to FIGS. 6 to 8 .

FIG. 6 is a flowchart of the IP-SM-GW saving the delivery failure indication provided by the embodiment of the present application for a short message delivery failure of a final call. As shown in FIG. 6 , the following steps may be included:

Step 601, the short message service center SMSC sends a final call short message delivery request (MAP_MT_Forward_ShortMessage) to the IP-SM_GW;

Step 602, the IP-SM_GW sends a SIP short message (Message) to the SCSCF;

Step 603, the SCSCF forwards the SIP short message (Message) to the PCSCF;

Step 604, the PCSCF forwards the SIP short message (Message) to the UE;

Step 605, due to the mobility of the UE, the UE is unreachable or unresponsive;

Step 606, PCSCF receives or actively generates a failure response, such as a SIP 4xx/5xx/6xx failure response;

Step 607, the PCSCF forwards the failure response to the SCSCF;

Step 608, the SCSCF forwards the failure response to the IP-SM-GW;

Step 609, the IP-SM-GW sends a final call short message delivery failure response to the short message service center;

Step 610, the short message service center caches the unsuccessfully delivered short message locally, so that it can be re-delivered when the terminal is available again;

Step 611, for the IP-SM-GW, for the local terminal short message delivery failure scenario, in this embodiment, the IP-SM-GW constructs transparent data, carries the short message delivery failure indication, and then sends a subscription update request based on the Diameter protocol through the Sh interface. (Profile-Update-Request, PUR) to HSS or HLR, the request carries transparent data;

Step 612, the HSS or HLR saves the transparent data including the SMS delivery failure indication, so that the IP-SM-GW for subsequent disaster recovery can download and use it;

Step 613, the HSS or HLR returns a subscription update response (Profile-Update-Answer, PUA) to the IP-SM-GW.

FIG. 7 is a flowchart of notifying the terminal availability in combination with the delivery failure indication in the IP-SM-GW disaster recovery scenario provided by the embodiment of the present application. As shown in FIG. 7 , the following steps may be included:

Step 701, when the IP-SM-GW1 that previously provided services is abnormal, such as scenarios such as downtime or restarting or recovery after restarting;

Step 702, when the terminal becomes available again, such as attaching to an available wireless network or restarting normally, the terminal will initiate a registration request to the IMS network at this time;

Step 703, the PCSCF forwards the registration request to the SCSCF;

Step 704, SCSCF triggers a registration request to IP-SM-GW2 for disaster recovery;

Step 705, the IP-SM-GW2 sends a user data request (User-Data-Request, UDR) to the HSS, so as to download the user subscription data;

Step 706, the HSS sends a user data response (User-Data-Answer, UDA) to the IP-SM-GW2, the response contains the transparent data of the user, and the transparent data contains the SMS delivery failure indication;

Step 707-Step 709, IP-SM-GW2 returns a registration success response, and reaches the UE through SCSCF/PCSCF;

In step 710, since IP-SM-GW2 receives a new registration indicating that the terminal is available, and parses the transparent data and finds that there is a message delivery failure indication, IP-SM-GW will send a request to receive a short message (MAP_Ready_For_ShortMessage) to the HLR or HSS at this time;

Step 711, after receiving the MAP_Ready_For_SM request, the HLR or HSS returns a response MAP_Ready_For_SM_Rsp to the IP-SM-GW2;

Step 712, HLR or HSS will send MAP_Alert_Service_Centre request to notify SMS Service Center;

Step 713, after receiving the MAP_Alert_Service_Centre request, the SMS service center returns a response MAP_Alert_Service_Centre_Rsp to the HLR or HSS;

Step 714, the short message service center decides to re-deliver the locally cached short message according to the MAP_Alert_Service_Centre message.

FIG. 8 is a flowchart of re-delivering the final call short message and clearing the delivery failure indication provided by the embodiment of the present application. As shown in FIG. 8 , the following steps may be included:

Step 801, the short message service center sends a final call short message delivery request (MAP_MT_Forward_ShortMessage) to IP-SM_GW2;

Step 802, IP-SM_GW2 sends a SIP short message (Message) to the SCSCF;

Step 803, the SCSCF forwards the SIP short message (Message) to the PCSCF;

Step 804, the PCSCF forwards the SIP short message (Message) to the UE;

Step 805, the UE successfully receives the short message and sends a successful response to the PCSCF;

Step 806, the PCSCF forwards the successful response to the SCSCF;

Step 807, the SCSCF forwards the successful response to the IP-SM-GW;

Step 808, the IP-SM-GW2 sends a final call short message delivery success response to the short message service center;

Step 809, because the final call short message has been successfully delivered, the short message service center will clear the locally cached short message;

Step 810, for IP-SM-GW2, since the final call short message has been successfully delivered, the IP-SM-GW needs to send a PUR request to the HSS through the Sh interface, carrying the transparent data to clear the message delivery failure indication, or directly delete the message containing the delivery of the short message. Transparent data for failure indication.

Step 811, the HLR or the HSS clears the transparent data containing the failure indication of SMS delivery;

In step 812, the HLR or HSS returns a successful PUA response, so that the subsequent IP-SM-GW will no longer consider that there is an indication of short message delivery failure.

It can be seen from Figure 5 to Figure 8 that when the delivery of the final call short message fails, the IP-SM-GW1 locally saves the delivery failure indication, and saves the short message delivery failure indication in the format of transparent data or by extending a new field through the Sh interface. to HSS or HLR. When the IP-SM-GW1 is not abnormal (that is, in a non-disaster tolerance scenario), it re-receives the terminal's registration request (or a third-party registration request), at this time, the IP-SM-GW1 can follow the locally saved delivery failure indication , send the terminal reachable/available information to the HLR/SMSC, so that the SMSC can re-deliver the previously cached undelivered short messages. When the final call message is successfully delivered, the IP-SM-GW1 needs to clear the locally saved short message delivery failure and clear the SMS delivery failure indication saved on the HSS through the Sh interface. When IP-SM-GW1 is abnormal (that is, in a disaster recovery scenario), IP-SM-GW2 re-receives the terminal's registration request (or third-party registration request), at this time IP-SM-GW2 can receive the registration request from the HSS or HLR Download the transparent data, parse the downloaded transparent data to get the SMS delivery failure indication, and then the IP-SM-GW2 sends the terminal reachable/available information to the HLR/SMSC, so that the SMSC can re-deliver the previously cached undelivered short messages. After the delivery of the final call message is successful, the IP-SM-GW2 needs to clear the message delivery failure indication stored in the HSS or HLR through the Sh interface. This solution is aimed at disaster recovery and non-disaster recovery scenarios of SMS gateways, and implements simple, effective, and accurate redelivery after SMS delivery fails. It only relies on IP-SM-GW, and has no special logic for HSS/HLR.

FIG. 9 is a schematic structural block diagram of an apparatus for processing a short message delivery failure provided by an embodiment of the present application. As shown in FIG. 8 , the apparatus may be applied to the apparatus described in the second IP-SM-GW, and may include:

a storage module, configured to locally store the UE's short message delivery failure indication in the first IP-SM-GW after the UE's short message delivery fails;

an obtaining module, configured to obtain the locally stored short message delivery failure indication of the UE after the first IP-SM-GW determines that the UE is reachable;

The triggering module is configured to trigger the SMSC to re-deliver the pre-cached short message delivery failure to the UE after acquiring the short message delivery failure indication of the UE.

The device provided in this embodiment saves the short message delivery failure indication to the first IP-SM-GW locally after the final call short message delivery fails, so that when no abnormality occurs in the first IP-SM-GW, the local The stored short message delivery failure indication triggers the SMSC to re-deliver the pre-cached short message delivery failure to the UE, without interacting with the HLR or the HSS, and realizes the short message re-delivery simply, effectively and accurately.

Based on the above device, the storage module is further configured to save the short message delivery failure indication of the UE to the HLR or the HSS, so that when the first IP-SM-GW is abnormal, the second IP-SM-GW will The HLR or the HSS acquires the short message delivery failure indication of the UE, and triggers the SMSC to re-deliver the pre-cached short message delivery failure to the UE. In this way, even if the first IP-SM-GW is abnormal, the short message redelivery can be implemented simply, effectively and accurately.

Based on the above-mentioned apparatus, it may further include: a deletion module, configured to delete the locally stored information of the first IP-SM-GW after the first IP-SM-GW receives a response that the short message is successfully re-delivered to the UE. The short message delivery failure indication of the UE and the short message delivery failure indication of the UE saved by the HLR or the HSS, so as to prevent the successfully delivered short message from being re-delivered.

Those skilled in the art should understand that all or some of the steps in the methods disclosed above, the functional modules/units in the system and the device can be implemented as software (can be implemented by computer program codes executable by the computing device), firmware, hardware, and their appropriate combination. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit .

In some examples, the processing apparatus described above includes a non-transitory machine-readable storage medium that stores logic operable, for example, to perform at least a portion of the functions of: a store module, a retrieval module, a trigger module, a delete module, and the like. Logic may include instructions, data, and/or code that, if executed by a machine, may cause the machine to perform the methods, processes, and/or operations described herein. The machine may include, for example, any suitable processing platform, computing platform, computing device, processing device, computing system, processing system, computer, processor, etc., and may be implemented using any suitable combination of hardware, software, firmware, etc. . Logic may include or may be implemented as: software, software modules, applications, programs, subroutines, instructions, sets of instructions, computational codes, words, values, symbols, and the like. The instructions may include any suitable type of code, eg, source code, compiled code, interpreted code, executable code, static code, dynamic code, and the like. These instructions may be implemented according to a predetermined computer language, manner or syntax to direct the processor to perform a certain function. These instructions may be implemented using any suitable high-level, low-level, object-oriented, visual, compiled and/or interpreted programming language, eg, C, C++, Java, BASIC, Matlab, Pascal, Visual BASIC, Assembly language, machine code, etc.

The embodiment of the present application also provides a system for processing a short message delivery failure, the system may include:

The first IP-SM-GW is used to save the short message delivery failure indication of the UE to the local and the HLR or HSS after the short message delivery of the UE fails, and after determining that the UE is reachable, obtain all the locally stored information. The short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, trigger the SMSC to re-deliver the pre-cached short message delivery failure to the UE;

The second IP-SM-GW is configured to acquire the short message delivery failure indication of the UE saved by the HLR or the HSS after the first IP-SM-GW is abnormal and it is determined that the UE is reachable, And after acquiring the short message delivery failure indication of the UE, the SMSC is triggered to re-deliver the pre-cached short message delivery failure to the UE.

According to the system of the embodiment of the present application, the first IP-SM-GW for the non-disaster tolerance scenario of the short message gateway of the IMS network can effectively and accurately re-deliver the short message that failed to be delivered earlier according to the locally stored short message delivery failure instruction. Delivery, for the disaster recovery scenario of the SMS gateway of the IMS network, the second IP-SM-GW can effectively and accurately implement the previous delivery according to the SMS delivery failure indication stored in the HLR or HSS by the first IP-SM-GW. Failed text messages are redelivered.

Based on the above system, the first IP-SM-GW is further configured to delete the locally stored short message delivery failure indication of the UE and the HLR or any The short message delivery failure indication of the UE saved by the HSS; or the second IP-SM-GW is further configured to delete the HLR or the HSS after receiving a response that the short message is successfully re-delivered to the UE The stored short message delivery failure indication of the UE. In this way, the short message that has been successfully delivered can be prevented from being delivered again.

To sum up, in this embodiment of the present application, after the delivery of the final call short message fails, the first IP-SM-GW saves the short message delivery failure indication to the local and to the HLR or HSS, so that after the UE is reachable, if the first IP-SM-GW If no abnormality occurs, the short message that has not been successfully delivered before can be re-delivered according to the locally saved short message delivery failure indication. Indication of SMS delivery failure, re-delivery of unsuccessful SMS before re-delivery, this solution only relies on IP-SM-GW, does not require HSS/HLR to add special processing logic, can realize SMS re-delivery simply and effectively, and is suitable for disaster recovery Scenes.

Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, functional modules/units in the systems, and devices can be implemented as software, firmware, hardware, and appropriate combinations thereof.

In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

The preferred embodiments of the present application have been described above with reference to the accompanying drawings, which are not intended to limit the scope of the rights of the present application. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and essence of the present application shall fall within the scope of the right of the present application.

Claims

A method for processing a message delivery failure, wherein the method comprises:

The first internet protocol short message gateway IP-SM-GW saves the short message delivery failure indication of the UE locally after the short message delivery of the terminal UE fails;

After determining that the UE is reachable, the first IP-SM-GW obtains the locally stored short message delivery failure indication of the UE;

After acquiring the short message delivery failure indication of the UE, the first IP-SM-GW triggers the short message service center SMSC to re-deliver the pre-cached short message delivery failure to the UE.
The method according to claim 1, wherein the first IP-SM-GW triggers a short message service center (SMSC) to re-deliver the pre-cached short message that fails to be delivered to the UE after acquiring the short message delivery failure indication of the UE. include:

The first IP-SM-GW sends the information about the reachability of the UE to the SMSC via the home location register HLR or the home subscriber server HSS, so that the SMSC can send a new message to the UE according to the information about the reachability of the UE. Delivers pre-cached delivery failed SMS messages.
The method of claim 1, wherein the method further comprises:

The first IP-SM-GW deletes the stored short message delivery failure indication of the UE after receiving a response that the short message is successfully re-delivered to the UE.
The method according to claim 1 or 2, wherein the method further comprises: the first IP-SM-GW saves the short message delivery failure indication of the UE to the HLR or the HSS, so that the first IP-SM-GW can store the short message delivery failure indication of the UE in the HLR or HSS, - When the SM-GW is abnormal, the second IP-SM-GW obtains the UE's short message delivery failure indication from the HLR or the HSS, and triggers the SMSC to re-deliver the pre-cached delivery failure to the UE SMS.
The method according to claim 1, wherein, after the first IP-SM-GW determines that the UE is reachable, acquiring the locally stored short message delivery failure indication of the UE comprises:

When the UE is available again, if the first IP-SM-GW is not abnormal, it will receive a registration request initiated by the UE to the network protocol multimedia subsystem IMS network, so that the first IP-SM-GW obtains the local The stored short message delivery failure indication of the UE.
A method for processing a message delivery failure, wherein the method comprises:

The first internet protocol short message gateway IP-SM-GW saves the short message delivery failure indication of the UE to the local and home location register HLR or the home user server HSS after the short message delivery of the terminal UE fails;

After determining that the UE is reachable, the first IP-SM-GW acquires the locally stored short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, triggers the short message service center SMSC to send the message to the UE. The UE re-deliveries the pre-cached short message that fails to be delivered;

Or, when the first IP-SM-GW is abnormal, after determining that the UE is reachable, the second IP-SM-GW obtains the short message delivery failure indication of the UE saved by the HLR or the HSS , and after acquiring the short message delivery failure indication of the UE, trigger the SMSC to re-deliver the pre-cached short message delivery failure to the UE.
The method according to claim 6, wherein the first IP-SM-GW triggering the SMSC to re-deliver the pre-cached short message that fails to deliver to the UE comprises:

The first IP-SM-GW sends the information that the UE is reachable to the SMSC via the HLR or the HSS, so that the SMSC re-delivers the pre-cached delivery failure to the UE according to the information that the UE is reachable SMS.
The method according to claim 6 or 7, wherein the method further comprises:

After receiving the response that the short message re-delivery to the UE is successful, the first IP-SM-GW deletes the locally saved short message delivery failure indication of the UE and the UE's short message delivery failure indication saved by the HLR or the HSS. SMS delivery failure indication.
The method according to claim 6, wherein saving the short message delivery failure indication of the UE to the HLR or the HSS comprises:

generating, by the first IP-SM-GW, transparent data including the UE's short message delivery failure indication;

The first IP-SM-GW saves transparent data including the UE's short message delivery failure indication to the HLR or the HSS.
The method according to claim 9, wherein after the second IP-SM-GW determines that the UE is reachable, acquiring the short message delivery failure indication of the UE saved by the HLR or the HSS comprises:

After determining that the UE is reachable, the second IP-SM-GW obtains, from the HLR or the HSS, transparent data including the UE's short message delivery failure indication;

The second IP-SM-GW parses the transparent data to obtain the short message delivery failure indication.
The method according to any one of claims 6, 9-10, wherein the second IP-SM-GW triggering the SMSC to re-deliver the pre-cached short message that fails to deliver to the UE comprises:

The second IP-SM-GW sends the information about the reachability of the UE to the SMSC via the home location register HLR or the home subscriber server HSS, so that the SMSC can send a new message to the UE according to the information about the reachability of the UE. Delivers pre-cached delivery failed SMS messages.
The method of claim 11, wherein the method further comprises:

The second IP-SM-GW deletes the short message delivery failure indication of the UE saved by the HLR or the HSS after receiving a response that the short message is successfully re-delivered to the UE.
The method according to claim 6, after the first IP-SM-GW determines that the UE is reachable, acquiring the locally stored short message delivery failure indication of the UE comprises:

When the UE is available again, if the first IP-SM-GW is not abnormal, it will receive a registration request initiated by the UE to the IMS network, so that the first IP-SM-GW obtains the locally stored information of the UE. SMS delivery failure indication.
A processing device for short message delivery failure, wherein the device comprises:

a storage module, configured to locally store the short message delivery failure indication of the UE in the first Internet Protocol short message gateway IP-SM-GW after the terminal UE fails to deliver the short message;

an obtaining module, configured to obtain the locally stored short message delivery failure indication of the UE after the first IP-SM-GW determines that the UE is reachable;

The triggering module is configured to trigger the short message service center SMSC to re-deliver the pre-cached short message of delivery failure to the UE after acquiring the short message delivery failure indication of the UE.
The apparatus according to claim 14, wherein the storage module is further configured to save the short message delivery failure indication of the UE to a home location register (HLR) or a home subscriber server (HSS), so that the first IP-SM-GW can store the message in the first IP-SM-GW. When an exception occurs, the second IP-SM-GW acquires the UE's short message delivery failure indication from the HLR or the HSS, and triggers the SMSC to re-deliver the pre-cached short message delivery failure to the UE.
The apparatus of claim 15, wherein the apparatus further comprises:

A deletion module, configured to delete, after the first IP-SM-GW receives a response that the short message is successfully re-delivered to the UE, delete the short message delivery failure indication of the UE stored locally by the first IP-SM-GW and the short message delivery failure indication of the UE stored by the HLR or the HSS.
A kind of processing system of short message delivery failure, wherein, described system comprises:

The first internet protocol short message gateway IP-SM-GW is used to save the short message delivery failure indication of the UE to the local and home location register HLR or the home user server HSS after the short message delivery of the terminal UE fails, and to determine the After the UE is reachable, acquire the locally stored short message delivery failure indication of the UE, and after acquiring the short message delivery failure indication of the UE, trigger the short message service center SMSC to re-deliver the pre-cached short message delivery failure to the UE ;

The second IP-SM-GW is configured to acquire the short message delivery failure indication of the UE saved by the HLR or the HSS after the first IP-SM-GW is abnormal and it is determined that the UE is reachable, And after acquiring the short message delivery failure indication of the UE, the SMSC is triggered to re-deliver the pre-cached short message delivery failure to the UE.
The system of claim 17, wherein,

The first IP-SM-GW is further configured to delete the locally saved short message delivery failure indication of the UE and the message saved by the HLR or the HSS after receiving a response that the short message is successfully re-delivered to the UE. The UE's short message delivery failure indication;

Or the second IP-SM-GW is further configured to delete the short message delivery failure indication of the UE saved by the HLR or the HSS after receiving a response that the short message is successfully re-delivered to the UE.