WO2013149427A1

WO2013149427A1 - Method and device for providing short message service

Info

Publication number: WO2013149427A1
Application number: PCT/CN2012/075908
Authority: WO
Inventors: 吴昊; 谢芳
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-04-01
Filing date: 2012-05-22
Publication date: 2013-10-10
Also published as: CN103369481B; CN103369481A

Abstract

Disclosed are a method and device for providing a short message service. The method comprises: an SGSN receiving a request for a mobility management service sent by a terminal; the SGSN acquiring subscription data corresponding to the terminal, wherein an indication of a PS only service is carried in the subscription data; and when the SGSN supports providing a short message service for the terminal via NAS signalling, according to the subscription data, the SGSN determining that the terminal has attached to a PS network successfully, and providing the short message service for the terminal by means of the PS network. The adoption of the present invention can solve the problem that in the process of providing a service for a terminal, the interaction of a PS network and a CS network exists inevitably, and relative to a single network, the cross-network interaction is complex to implement and will cause a waste of resources.

Description

The present invention relates to the field of communications, and in particular to a method and apparatus for providing short message services. BACKGROUND OF THE INVENTION A mobility management process of a terminal includes an attach process, a detach process, and a location update process. Among them, in the mobile communication network, the location update process is also called the routing area update process. The attaching process is a process in which the terminal is registered in the network. After the terminal is powered on or disconnected from the network, the reconnection to the network requires an attach procedure to register the terminal information on the network, thereby obtaining various services provided by the network. The routing area is a small management area that the network divides according to the location area. Each terminal is assigned to a routing area after registration. When the terminal moves, it may move from one routing area to another. In this case, the routing area update process is needed to synchronize the location information of the terminal saved by the network to ensure that the called service can be correctly found when the called service occurs. terminal. A terminal supporting multiple modes means that the terminal simultaneously supports services on a Circuit Switch (CS) network and supports services on a Packet Switched (PS) network. Such a terminal needs to perform a joint attach process when attaching to the network, and when performing routing area update, it is also required to synchronize the location information in both the PS network and the CS network. The joint attach process of the terminal and the routing area update process are respectively described. The procedure of the joint attach process of the terminal is as follows, including: Step 1: The terminal sends an attach request to the Serving General Packet Radio Service Support Node (SGSN, which is an entity in the PS network); Step 2: The SGSN sends Update the location signaling to the Home Location Register (HLR) or the Home Subscriber Server (HSS); Step 3. The HLR or HSS sends the subscription data to the SGSN and confirms the location update. Step 4: The SGSN sends The location update request is sent to the CS network. Step 5: The CS network confirms the location update. Step 6: The SGSN sends the attach and receive signaling to the terminal. Step 7. The terminal successfully attaches to the network. The process of the routing area update process of the terminal is as follows, including:

牛鹏■ _ - The terminal sends a routing area update request to the SGSN; Niu Peng

——The SGSN sends the update location signaling to the HLR or the HSS. Step 3: The HLR or the HSS confirms the location update, and can also send the subscription data to the SGSN. Step 4: The SGSN sends a location update request to the CS network. Step 5 The CS network confirms the location update. Step 6: The SGSN sends a routing area update acceptance signaling to the terminal. Step 7. The terminal successfully updates the routing area. It can be seen from the joint attach process of the foregoing terminal and the routing area update process of the terminal that the SGSN needs to interact with the CS network subsequently. Moreover, the traditional short message service (SMS) is provided by the CS network for the terminal, and can only be provided by the CS network for the terminal, that is, the PS network cannot provide the short message service for the terminal. . Therefore, in the service provision process of the terminal, the interaction between the PS network and the CS network is inevitable, and the interaction across the network is complicated compared to the single network, and the resource is wasted. In the related technology, in the service provision process of the terminal, the interaction between the PS network and the CS network is inevitable, and the interaction between the network and the network is complicated compared to the single network, and the problem of waste of resources is not yet proposed. solution. SUMMARY OF THE INVENTION In the related art, in the process of providing services of a terminal, there is a certain interaction between the PS network and the CS network. The interaction between the network and the network is complicated compared to the single network, and the resource is wasted. A short message service providing method and apparatus are provided to solve at least the above problems. According to an embodiment of the present invention, a short message service providing method is provided, including: a service general packet radio service support node (SGSN) receiving a request for mobility management service sent by a terminal; and the SGSN obtaining a corresponding to the terminal The subscription data, wherein the subscription data carries an indication of using a packet switched network to provide a service (PS only) service; when the SGSN supports providing a short message service for the terminal by using a non-access stratum (NAS) signaling And determining, by the SGSN, that the terminal is successfully attached to the PS network according to the subscription data, and using the PS network to provide a short message service for the terminal. Preferably, the mobility management service includes at least one of the following: an attach process, a detach process, and a routing area update process. Preferably, when the mobility management service is an attaching process, the SGSN determines that the terminal successfully attaches to the PS network according to the subscription data, and includes: when the subscription data carries a mandatory PS network to provide services to the terminal ( When the indication of the PS only enforced), the SGSN determines, according to the subscription data, that the terminal is only successfully attached to the PS network, and is not successfully attached to the circuit switched (CS) network; when the subscription data carries a preference PS When the network provides an indication of the service (PS only enabled), the SGSN determines, according to the subscription data, that the terminal successfully attaches to the PS network and the CS network. Preferably, the determining, by the SGSN, that the terminal is successfully attached to the PS network according to the subscription data, the SGSN includes: the SGSN carries the determination result in the attach accept signaling, and sends the result to the terminal. According to another embodiment of the present invention, a short message service providing method is provided, including: a terminal sending a request for mobility management service to a serving general packet radio service support node (SGSN), wherein the SGSN supports non-connection The inbound layer (NAS) signaling provides a short message service for the terminal; the terminal receives the attach accepting signaling sent by the SGSN, where the attach accepting signaling carries the SGSN to determine that the terminal successfully attaches An indication to a packet switched (PS) network; the terminal provides a short message service through the PS network according to the attach accepting signaling. Preferably, the mobility management service includes at least one of the following: an attach process, a detach process, and a routing area update process. Preferably, when the indication carried in the attach accept signaling is that the terminal only successfully attaches to the PS network, but is not successfully attached to the circuit switched (CS) network, the terminal is registered after the PS network. The process of registering with the CS network is no longer initiated; when the indication carried in the attach and receive signaling is that the terminal successfully attaches to the PS network and the CS network, the terminal determines that it only needs to accept The PS service and the short message service, the terminal does not initiate the process of registering with the CS network after the PS network is registered; the indication carried in the attach and receive signaling is that the terminal successfully attaches to the When the PS network and the CS network are described, the terminal determines that it accepts the PS service, the short message service, and the CS service except the short message service, and the terminal still initiates the CS to the CS after the PS network is registered. The process of network registration. According to another embodiment of the present invention, a short message service providing apparatus is provided, which is disposed in a serving general packet radio service support node (SGSN), and includes: a first receiving module, configured to receive a mobility management service sent by the terminal The second receiving module is configured to obtain the subscription data corresponding to the terminal, where the subscription data carries an indication of using a packet switched network to provide a service (PS only) service; the first service providing module, setting Providing a short cancellation for the terminal by the SGSN when supporting non-access stratum (NAS) signaling And determining, according to the subscription data, that the terminal is successfully attached to the PS network, and using the PS network to provide a short message service for the terminal. Preferably, the first service providing module includes: a first determining unit, configured to determine, according to the subscription data, when the subscription data carries an indication that the PS network is required to provide a service to the terminal (PS only enforced) The terminal is only successfully attached to the PS network and is not successfully attached to the circuit switched (CS) network. The second determining unit is configured to: when the subscription data carries the preferentially selected PS network to provide services to the terminal (PS only enabled) And indicating, according to the subscription data, that the terminal is successfully attached to the PS network and the CS network. According to another embodiment of the present invention, a short message service providing apparatus is provided, which is disposed in a terminal, and includes: a sending module, configured to send a request for mobility management service to a serving general packet radio service support node (SGSN), The SGSN supports the short message service for the terminal by using the non-access stratum NAS signaling; the second receiving module is configured to receive the attach and receive signaling sent by the SGSN, where the attach and receive signaling is Carrying the SGSN to determine that the terminal is successfully attached to the packet switched (PS) network; and the second service providing module is configured to provide a short message service by using the PS network according to the attach and receive signaling. In the embodiment of the present invention, the SGSN receives the request for the mobility management service sent by the terminal, and the SGSN receives the subscription data corresponding to the terminal, where the subscription data carries the indication of the PS only service, and the SGSN supports the terminal through the NAS signaling. When the short message service is provided, the SGSN determines that the terminal successfully attaches to the PS network according to the foregoing contract data, and uses the PS network to provide a short message service for the terminal. The SGSN itself is an entity in the PS network and has the function of providing a short message service for the terminal. The BP and PS networks can provide the short message service for the terminal, and the indication of the PS only service carried in the subscription data indicates that the preferred PS network provides the terminal with the short message service. business. Therefore, the short message service is provided for the terminal by using the PS network, which ensures that only a single PS network is used to provide services for the terminal, which is simple to implement and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a first short message service providing method according to an embodiment of the present invention; FIG. 2 is a flowchart of a second short message service providing method according to an embodiment of the present invention; 3 is a schematic structural diagram of a first short message service providing apparatus according to an embodiment of the present invention; FIG. 4 is a schematic structural diagram of a first service providing module according to an embodiment of the present invention; and FIG. 5 is a second embodiment according to an embodiment of the present invention. A schematic diagram of the structure of a short message service providing device. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The traditional short message service is provided by the CS network for the terminal, and can only be provided by the CS network for the terminal. That is to say, the PS network cannot provide the short message service for the terminal. Therefore, in the service provision process of the terminal, the interaction between the PS network and the CS network is inevitable, and the interaction across the network is complicated compared to the single network, and the resource is wasted. In order to solve the above technical problem, the related art provides a PS only service, which is a service that provides a service to a terminal using a PS network. For example, a GPRS network is used to provide services to terminals. The PS only service usually has two forms of subscription: PS only enforced and PS only enabled. The PS only enforce refers to forcing the PS network to provide services to the terminal, and only the PS network can provide services for the terminal. The PS only enabled refers to preferentially selecting the PS network to provide services to the terminal, that is, allowing the PS network and the CS network to simultaneously provide services for the terminal, but prefers the PS network, and the CS network provides services for the terminal when the PS network cannot provide. As mentioned above, the traditional short message service can only be provided by the CS network for the terminal. In other words, the PS network cannot provide the short message service for the terminal. If the current terminal needs the short message service, the PS only service cannot be implemented. . In order to support the PS only service, the SGSN is enhanced, and the short message service can be provided to the terminal in the PS network through Non-Access Stratum (NAS) signaling. When the enhanced SGSN is used, when the terminal only needs the PS service and the short message service, the SGSN terminal can be instructed to only need the short message service in the original CS service, so that the SGSN that supports the NAS signaling to send the short message is supported. The SGSN of the short message service may not need to perform interaction with the CS network in the attaching process, the routing area updating process, and the detaching process, but may directly provide short message service for the terminal in the PS network. However, considering the SGSN, providing NAS-based short message service based on NAS signaling is a preferred function of the network, and not all SGSNs support this capability. If the SGSN does not support the function of the short message service based on the NAS signaling, the SGSN does not perform the interaction with the CS network subsequently, and the terminal cannot register with the CS network. Because the SGSN does not support the function of the short message service based on NAS signaling, the terminal cannot be in the PS network. Get short message business. While the terminal cannot obtain the short message service in the PS network, the terminal cannot obtain the short message service on the CS network because the terminal is limited to be able to register in the CS network. It can be seen from the above analysis that when the terminal moves to an SGSN that does not support the NAS signaling short message service, the subscription data obtained by the SGSN fails to provide a short NAS based signaling even if "PS only" is indicated. The message service is given to the terminal. Therefore, the applicable scope of the short message service providing method provided by the embodiment of the present invention must simultaneously guarantee the following two conditions: Condition 1. The SGSN has a short message service based on NAS signaling; Condition 2: The contract data received by the SGSN indicates PS only . In order to solve the above technical problem, an embodiment of the present invention provides a short message service providing method, which

The SGSN (that is, the PS network) is described on one side, and the processing flow thereof is as shown in FIG. 1 , and includes steps S102 to S106: Step S102: The SGSN receives the request for the mobility management service sent by the terminal. Step S104: The SGSN obtains the corresponding to the terminal. The subscription data, wherein the subscription data carries an indication of the PS only service; Step S106: When the SGSN supports the short message service for the terminal through the NAS signaling, the SGSN determines that the terminal successfully attaches to the PS network according to the subscription data, and uses the PS The network provides short message services for terminals. In the embodiment of the present invention, the SGSN receives the request for the mobility management service sent by the terminal, and the SGSN receives the subscription data corresponding to the terminal, where the subscription data carries the indication of the PS only service, and the SGSN supports the terminal through the NAS signaling. When the short message service is provided, the SGSN determines that the terminal successfully attaches to the PS network according to the foregoing contract data, and uses the PS network to provide a short message service for the terminal. The SGSN itself is an entity in the PS network, and has the function of providing a short message service for the terminal, that is, the PS network can provide the short message service for the terminal, and the indication of the PS only service carried in the subscription data indicates that the preferred PS network provides the terminal with the short message service. business. Therefore, the short message service is provided for the terminal by using the PS network, which ensures that only a single PS network is used to provide services for the terminal, which is simple to implement and saves resources. The mobility management service mentioned in the embodiment of the present invention may include at least one of the following: an attach process, a detach process, and a routing area update process. As mentioned above, the PS only service usually has two forms of subscription: PS only enforced and PS only enabled ₀ In the implementation process, the indication of the PS only service carried in the subscription information may be selected according to the actual situation, and Different forms of signing. The attachment process is now taken as an example for explanation. When the mobility management service is an attaching process, the SGSN determines that the terminal is successfully attached to the PS network according to the subscription data. According to the different subscription forms carried in the subscription data, the attachment status of the terminal is as follows. Case 1: When the subscription data carries the indication of PS only enforced, the SGSN determines that the terminal is only successfully attached to the PS network according to the subscription data, and is not successfully attached to the circuit switched (CS) network. In the implementation, the setting of the different information element attribute values in the signaling may be used to reflect the attachment status of the terminal. For example, a preferred implementation manner is as follows: The SGSN sets the information element "Attach result" in the attach acceptance signaling. For "GPRS only" (GRPS network only), set the information element "GMM cause" (GMM reason, where GMM is the reason for Global Multimedia Mobility) to "IMSI unknown in HLR" (unknown in HLR) The IMSI, where IMSI is the abbreviation of International Mobile Subscriber Identifier or "PS only", indicates the reason why only the PS network is successfully attached and the CS network is not successfully attached. Case 2: When the subscription data carries an indication of PS only enabled, the SGSN determines that the terminal successfully attaches to the PS network and the CS network according to the subscription data. At this time, the SGSN sets the information element "Attach result" to "combined GPRS attach" in the attach acceptance signaling, indicating that the SGSN is successfully attached to the CS network and the PS network. In order to determine whether the short message service is provided by the PS network or the CS network, the information element "Network feature support" is set to "SMS-Supported", indicating that the SGSN supports the NAS-based short message service, so that It is directly determined that the short message service is provided for the terminal by using the PS network. In case 2, that is, the SGSN determines that the terminal is successfully attached to the PS network and the CS network, if the SGSN supports the short message service for the terminal through the NAS signaling, it is determined that the short message service is provided by the PS network for the terminal; if the SGSN itself The short message service is not supported by the NAS signaling, and it is determined that the short message service is provided by the CS network for the terminal. Further, in a preferred embodiment, after determining, by the SGSN, that the terminal is successfully attached to the PS network according to the subscription data, the SGSN carries the determination result in the attach and receive signaling, and sends the result to the terminal, notifying the terminal of the attached network, and the terminal further It is determined according to the determination result in the attachment acceptance signaling which network transmits the short message service, or receives the short message service from the network. Based on the same inventive concept, the embodiment of the present invention provides another short message service providing method, which describes how the network provides short message service from the terminal side. The processing flow is as shown in FIG. 2, and includes steps S202 to S206: Step S202: The terminal sends a request for the mobility management service to the SGSN, where the SGSN supports the short message service for the terminal by using the NAS signaling. Step S204: The terminal receives the attach and receive signaling sent by the SGSN, where the attach and receive signaling is carried. The SGSN determines an indication that the terminal is successfully attached to the PS network. Step S206: The terminal provides the short message service through the PS network according to the attach acceptance signaling. In the embodiment of the present invention, the terminal sends a request for the mobility management service to the SGSN, where the SGSN supports the short message service provided by the terminal through the NAS signaling, and the terminal receives the attach and receive signaling sent by the SGSN, where the attach and receive signaling is included. The SGSN carries an indication that the terminal is successfully attached to the PS network, and the terminal provides the short message service through the PS network according to the attach and receive signaling. The SGSN itself is an entity in the PS network, and has the function of providing a short message service for the terminal, that is, the PS network can provide the short message service for the terminal, and the indication of the PS only service carried in the subscription data indicates that the preferred PS network provides the terminal with the short message service. business. Therefore, the short message service is provided for the terminal by using the PS network, which ensures that only a single PS network is used to provide services for the terminal, which is simple to implement and saves resources. Similar to the above, the mobility management service provided by this embodiment also includes at least one of the following: an attach process, a detach process, and a routing area update process. As mentioned above, the SGSN carries the determined result in the attach and receive signaling and sends it to the terminal. The determination result may be classified into three cases according to the difference of the attached network, one is attached only to the PS network, and the other is attached to the terminal at the same time. PS network and CS network, the other is only attached to the CS network. Considering that the present embodiment is to provide a short message service for the terminal by using the PS network, therefore, only the first two cases are analyzed and illustrated here. In the first case, when the indication carried in the attach and receive signaling is that the terminal only successfully attaches to the PS network but fails to attach to the circuit switched CS network, the terminal does not initiate the process of registering with the CS network after the PS network is registered. . In the second case, when the indication carried in the attach and receive signaling is that the terminal successfully attaches to the PS network and the CS network, the terminal further determines the subsequent operation according to the service required by the terminal: if the terminal determines that it only needs to accept the PS service and the short message. During the service, after the terminal registers with the PS network, the process of registering with the CS network is no longer initiated; If the terminal determines that it accepts the PS service, the short message service, and the CS service other than the short message service, the terminal still initiates the process of registering with the CS network after the PS network is registered. In order to explain the short message service providing method provided by the embodiment of the present invention, the embodiment of the present invention will be described with reference to specific embodiments. Embodiment 1 This embodiment corresponds to the process of the joint attachment process of the terminal mentioned in the related art and the process of the routing area update process, and the processing steps are as follows: Step 1: The terminal sends an attach request or a routing area update request to the SGSN; Step 2 The SGSN sends the update location signaling to the HSS or the HLR. Step 3: The HSS or the HLR sends the subscription data to the SGSN. Step 4: If the SGSN supports the short message service based on the NAS signaling, and the PS only enforced is indicated in the subscription data, The SGSN indicates in the Attach Acceptance Signalling that only the PS network is successfully attached, or indicates that only the PS network is successfully updated in the Routing Area Update Acceptance Signaling. The second embodiment of the present invention takes the attaching process as an example, and combines the use of the PS network to provide a short message service for the terminal and the short message service for the terminal by using the CS network. When the terminal is provided with the short message service and the PS only indication carried by the subscription data, the short message service is provided to the terminal by using the PS network; if not, the short message service is provided for the terminal by using the CS network. The specific processing flow is as follows. Step 1: The terminal initiates an attach request to the SGSN, and the attach request includes the identifier of the terminal. Step 2: After receiving the attach request of the terminal, the SGSN sends the update location signaling to the HSS or the HLR, where the update location request includes the identifier of the terminal. And the identity of the SGSN, Step 2.1 Optionally, the SGSN may send capability information of whether to support the NAS-based short message service to the HSS or the HLR; Step 3: After receiving the update location signaling sent by the SGSN, the HSS or the HLR queries the subscription data of the terminal according to the identifier of the terminal included in the signaling, and sends the subscription data to the SGSN, and simultaneously identifies the SGSN in the signaling. And saving the update location confirmation signaling to the SGSN; Step 4: After receiving the subscription data sent by the HSS or the HLR, the SGSN reads the information in the subscription data, and performs operations according to whether the self-sustained short message service based on the NAS signaling . Step 4.1: If the SGSN supports the short message service based on the NAS signaling, and the PS only enforced is indicated in the subscription data, the SGSN sets the information element "Attach result" to "GPRS only" in the attach acceptance signaling, and the information element" The GMM cause "set to "IMSI unknown in HLR" or "PS only" indicates the reason why only the PS network was successfully attached and the CS network was not successfully attached. Step 4.2: If the SGSN supports the short message service based on the NAS signaling, and the PS data is indicated in the subscription data, the U SGSN sets the information element "Attach result" to "combined GPRS attach" in the attach acceptance signaling, indicating success. Attached to the CS network and the PS network, the information element "Network feature support" is set to "SMS-Supported", indicating that the SGSN supports NAS-based short message service. Step 4.3: If the SGSN does not support the short message service based on the NAS signaling, and the PS only enforced or PS only enabled in the subscription data, the SGSN sends the context information such as the identifier of the terminal, the SGSN address, etc., to the location update request signaling. The MSC or the VLR registers the terminal on the CS network, the MSC or the VLR saves the context information of the terminal, and feeds back the location update acceptance signaling to the SGSN. The SGSN sets the information element "Attach result" to "combined GPRS attach" in the attach accept. Indicates successful attachment to the CS network and the PS network. Step 5: After receiving the attachment acceptance signaling, the terminal reads the information element in the signaling. Step 5.1: If the value of the information element "Attach result" is "GPRS only", and the value of "GMM cause" is "IMSI unknown in HLR" or "PS only", the terminal no longer initiates the process of registering with the CS network. That is, no attach request or location update request is sent to the CS network. The terminal sends a short message to the SGSN or receives a short message from the SGSN. Step 5.2: If the value of the information element "attach result" is "combined GPRS attach" and the value of "Network feature support" is "SMS-Supported", if the terminal only needs to receive PS service (such as mobile Internet access) and short message service , the terminal no longer initiates the process of registering with the CS network. The terminal sends a short message to the SGSN or receives a short message from the SGSN. Step 5.3: If the value of the information element "attachment result" is "combined GPRS attach" and the value of "Network feature support" is "SMS-Supported", if the terminal needs to receive the PS service and other CS services other than the short message ( For example, a voice call, the terminal sends a short message to the MSC or SGSN, or receives a short message from the MSC or SGSN. CS network or PS network, just pick a short message service. Step 5.4: If the value of the information element "Attach result" is "combined GPRS attach" and the value of "Network feature support" is not "SMS-Supported", the terminal sends a short message to the MSC or receives a short message from the MSC. Based on the same inventive concept, an embodiment of the present invention further provides a short message service providing apparatus, which is disposed in an SGSN, and has a schematic structural diagram as shown in FIG. 3, including: a first receiving module 301, configured to receive mobility sent by the terminal. a request for managing a service; the obtaining module 302 is connected to the first receiving module 301, and configured to obtain the subscription data corresponding to the terminal, where the subscription data carries an indication of the PS only service; the first service providing module 303, and the obtaining module The connection is 302. When the SGSN supports the short message service provided by the terminal through the NAS signaling, the terminal determines that the terminal is successfully attached to the PS network according to the subscription data, and uses the PS network to provide the short message service for the terminal. In a preferred embodiment, as shown in FIG. 4, the first service providing module 303 may include: a first determining unit 401, configured to: when the subscription data carries a mandatory PS network to provide services to the terminal (PS only enforced) When the indication is made, it is determined that the terminal is only successfully attached to the PS network according to the subscription data, and is not successfully attached to the circuit switched (CS) network. The second determining unit 402 is configured to provide the service to the terminal when the subscription data carries the preferentially selected PS network.

When the indication of (PS only enabled) is determined, the terminal is determined to successfully attach to the PS network and the CS network according to the contract data. In this embodiment, the first determining unit 401 and the second determining unit 402 are two juxtaposed units, and are implemented to select between the two according to the indication in the subscription data. Based on the same inventive concept, an embodiment of the present invention further provides a short message service providing apparatus, which is disposed in a terminal, and a schematic structural diagram thereof is shown in FIG. 5, including: a sending module 501, configured to send a mobility management service request to SGSN, where the SGSN supports short message service for the terminal through NAS signaling; The second receiving module 502 is connected to the sending module 501, and is configured to receive the attach and receive signaling sent by the SGSN, where the attaching and receiving signaling carries an indication that the SGSN determines that the terminal successfully attaches to the PS network. The second service providing module 503, It is connected to the second receiving module 502, and is configured to provide a short message service through the PS network according to the connection acceptance signaling. From the above description, it can be seen that the present invention achieves the following technical effects: In the embodiment of the present invention, the SGSN receives the request for the mobility management service sent by the terminal, and the SGSN receives the subscription data corresponding to the terminal, where the subscription data The SGSN carries the indication of the PS only service. When the SGSN supports the short message service for the terminal through the NAS signaling, the SGSN determines that the terminal successfully attaches to the PS network according to the subscription data, and uses the PS network to provide the short message service for the terminal. The SGSN itself is an entity in the PS network and has the function of providing a short message service for the terminal. The gp, the PS network can provide the short message service for the terminal, and the indication of the PS only service carried in the subscription data indicates that the preferred PS network provides the terminal with the short message service. business. Therefore, the short message service is provided for the terminal by using the PS network, which ensures that only a single PS network is used to provide services for the terminal, which is simple to implement and saves resources. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

1. A short message service providing method, comprising:

Serving a general packet radio service support node SGSN receives a request for mobility management service sent by the terminal;

The SGSN obtains the subscription data corresponding to the terminal, where the subscription data carries an indication that the packet-switched network is used to provide the service PS only service;

When the SGSN supports the short message service for the terminal by using the non-access stratum NAS signaling, the SGSN determines that the terminal successfully attaches to the packet switched PS network according to the subscription data, and uses the PS network as the The terminal provides a short message service.

2. The method according to claim 1, wherein the mobility management service comprises at least one of the following: an attach process, a detach process, and a routing area update process.

The method according to claim 2, wherein, when the mobility management service is an attaching process, the SGSN determines that the terminal is successfully attached to the PS network according to the subscription data, and includes:

When the subscription data carries an indication that the PS network is required to provide the service PS only enforced to the terminal, the SGSN determines, according to the subscription data, that the terminal is only successfully attached to the PS network, and is not successfully attached to the circuit-switched CS. The internet;

When the subscription data carries an indication that the PS network is preferentially provided to the terminal to provide the service PS only enabled, the SGSN determines, according to the subscription data, that the terminal successfully attaches to the PS network and the CS network.

The method according to any one of claims 1 to 3, wherein, after determining, by the SGSN, that the terminal is successfully attached to the PS network according to the subscription data, the method includes: the SGSN carrying the determination result in an attaching and receiving letter Order, and send to the terminal.

5. A short message service providing method, comprising:

The terminal sends a request for the mobility management service to the serving general packet radio service support node SGSN, where the SGSN supports providing the short message service to the terminal through the non-access stratum NAS signaling;

Receiving, by the terminal, the attach accepting signaling sent by the SGSN, where the attach accepting signaling carries an indication that the SGSN determines that the terminal successfully attaches to the packet switched PS network; The terminal provides a short message service through the PS network according to the attach accepting signaling.

6. The method according to claim 5, wherein the mobility management service comprises at least one of the following: an attach process, a detach process, and a routing area update process.

7. The method according to claim 6, wherein

When the indication carried in the attach and receive signaling is that the terminal is only successfully attached to the PS network, but is not successfully attached to the circuit-switched CS network, the terminal does not initiate the registration after the PS network is registered. The process of registering the CS network;

When the indication carried in the attach and receive signaling is that the terminal successfully attaches to the PS network and the CS network, when the terminal determines that it only needs to accept the PS service and the short message service, the terminal is in the After the registration of the PS network, the process of registering with the CS network is no longer initiated;

When the indication carried in the attach and receive signaling is that the terminal successfully attaches to the PS network and the CS network, the terminal determines that it accepts the PS service, the short message service, and the CS service except the short message service. Then, after the terminal registers with the PS network, the terminal still initiates a process of registering with the CS network.

8. A short message service providing apparatus, which is disposed in a serving general packet radio service support node SGSN, and includes:

The first receiving module is configured to receive a request for the mobility management service sent by the terminal, and the obtaining module is configured to obtain the subscription data corresponding to the terminal, where the subscription data carries the service using the packet switched network. Business instructions;

a first service providing module, configured to: when the SGSN supports providing short message service for the terminal by using non-access stratum NAS signaling, determining, according to the subscription data, that the terminal is successfully attached to the packet switched PS network, and using the The PS network provides a short message service for the terminal.

The device according to claim 8, wherein the first service providing module comprises:

a first determining unit, configured to: when the subscription data carries an indication that the PS network is required to provide the service PS only enforced to the terminal, determining, according to the subscription data, that the terminal is only successfully attached to the PS network, and is not successfully attached. To a circuit switched CS network;

a second determining unit, configured to determine, according to the subscription data, that the terminal successfully attaches to the PS network and the CS network, when the subscription data carries an indication that the PS network is preferentially selected to provide the service PS only enabled .

0. A short message service providing device, configured in the terminal, comprising:

a sending module, configured to send a request for the mobility management service to the serving general packet radio service support node SGSN, where the SGSN supports providing the short message service to the terminal by using non-access stratum NAS signaling;

The second receiving module is configured to receive the attach and receive signaling sent by the SGSN, where the attach and receive signaling carries an indication that the SGSN determines that the terminal successfully attaches to the packet switched PS network;

And a second service providing module, configured to provide a short message service through the PS network according to the attach accepting signaling.