CN102970751B - Method, Apparatus and system that under a kind of LTE network, finishing service is consulted - Google Patents

Abstract

The present invention relates to a method for service negotiation under an LTE network, wherein a mobile switching center MSC receives a service request from a first terminal, and the request includes subscription information of the first terminal; The first terminal preferentially selects the OTT method to make a call, obtains the OTT account in the subscription information; sends the OTT account to the second terminal, and completes the service negotiation between the first terminal and the second terminal. Correspondingly, the present invention provides an MSC and a system for service negotiation under an LTE network, which solves the problem of delay in voice calls falling back from 4G to 2/3G, and improves user experience.

Description

Method, device and system for completing service negotiation in LTE network

technical field

The embodiments of the present invention relate to the field of telecommunications, and in particular to a method, device and system for completing service negotiation under an LTE network.

Background technique

The 3GPP organization has launched an Evolved Packet System (EPS) on the basis of the existing 2G and 3G networks. The EPS network includes Evolved Universal Mobile Telecommunications System Territorial Radio Access Network (Evolved Universal Mobile Telecommunications System Territorial Radio Access Network, E-UTRAN) and Evolved Packet Core Network (Evolved Packet Core Network, EPC). Since the EPS network only processes packet switched (Packet Switched, PS) services, currently operators use the original circuit switched (Circuit Switched, CS) to provide CS services. 3GPP expands the Gs interface function between the mobile switching center (MobileSwitchingCenter, MSC)/visitorlocation register (VisitorLocationRegister, VLR) and the serving GPRS support node (ServingGPRSSupportNode, SGSN) in the existing 2/3G network, and defines in the EPS network The SGs interface between the MSC/VLR and the mobility management entity (MobilityManagementEntity, MME). Based on the SGs interface function, 3GPP proposed a "circuit domain fallback" (CSFallback, CSFB) technology and a SGs short message transmission technology (SMSoverSGs). CSFB technology enables user equipment (User Equipment, UE) covered by E-UTRAN to return to the CS domain of 2G/3G network through E-UTRAN to complete service processing when it needs to process CS voice services; SMSoverSGs technology allows UEs residing under E-UTRAN The terminal reuses the existing CS domain equipment to realize the transmission of the CS short message.

Voice calls under the LTE network need to fall back to the 2G/3G network, or the new IMS network uses VoiceOverIMS, and there is a delay in the voice calls of LTE users falling back to the 2G/3G network. For operators who have 2G/3G networks but have not yet built an IMS network, the voice calls of 4G users need to fall back to the 2G/3G network, and there is a delay in call connection.

Contents of the invention

In view of this, the embodiments of the present invention provide a method, device and system for completing service negotiation under an LTE network, which solves the problem of delay in voice calls falling back from 4G to 2/3G, and improves user experience.

In a first aspect, an embodiment of the present invention provides a method for completing service negotiation under an LTE network, including:

The mobile switching center MSC receives the service request of the first terminal, and the request includes the subscription information of the first terminal;

Judging according to the subscription information that the first terminal preferentially selects an OTT method for calling, and obtaining an OTT account number in the subscription information;

The OTT account is sent to the second terminal to complete the service negotiation between the first terminal and the second terminal.

In a first possible implementation manner of the first aspect, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode.

In combination with the implementation manner in the first aspect, in a second possible implementation manner, before sending the OTT account number to the second terminal, it further includes:

The extended short message SMS format or the unstructured supplementary service data USSD format encapsulates the OTT account in the SMS message or USSD message.

In a second aspect, an embodiment of the present invention provides a mobile switching center MSC, including:

a receiving unit, configured to receive a service request from a first terminal, where the request includes subscription information of the first terminal;

a judging unit, configured to judge, according to the subscription information, that the first terminal preferentially selects an OTT method to make a call;

An acquisition unit, configured to acquire the OTT account number in the subscription information;

A sending unit, configured to send the OTT account number to a second terminal to complete the service negotiation between the first terminal and the second terminal.

In a first possible implementation manner of the second aspect, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode.

In combination with the implementation of the second aspect, in a second possible implementation, the MSC further includes:

The encapsulating unit is used to expand the short message SMS format or the unstructured supplementary service data USSD format, and encapsulate the OTT account in the SMS message or USSD message.

In a third aspect, an embodiment of the present invention provides a system for completing service negotiation under an LTE network, including a mobile switching center MSC, a first terminal, and a second terminal, wherein,

The MSC is configured to receive a service request from the first terminal, the request includes subscription information of the first terminal, judge according to the subscription information that the first terminal preferentially selects an OTT method to make a call, and obtain the The OTT account number in the signing information, sending the OTT account number to the second terminal to complete the service negotiation between the first terminal and the second terminal;

The first terminal is configured to send a service request to the MSC to complete the service negotiation between the first terminal and the second terminal;

The second terminal is configured to receive the OTT account number sent by the MSC, and complete the service negotiation between the first terminal and the second terminal.

In a first possible implementation manner of the third aspect, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode.

In the method, device and system for realizing service negotiation under the LTE network provided by the embodiments of the present invention, the mobile switching center MSC receives the service request of the first terminal, the request includes the subscription information of the first terminal, and according to the subscription The information judges that the first terminal prefers the OTT method to make a call, obtains the OTT account in the subscription information, sends the OTT account to the second terminal, and completes the service negotiation between the first terminal and the second terminal . Solve the problem of 4G falling back to 2/3G voice call delay and improve user experience.

Description of drawings

Fig. 1 is the architectural diagram of the application environment of the embodiment of the present invention;

Fig. 2 is the flowchart of embodiment 1 of the present invention;

Fig. 3 is the flowchart in the embodiment 2 of the present invention;

Fig. 4 is a device composition diagram in Embodiment 3 of the present invention;

FIG. 5 is a hardware architecture diagram of the device in Embodiment 3 of the present invention;

Fig. 6 is a system composition diagram in Embodiment 4 of the present invention.

detailed description

FIG. 1 is a diagram of an application environment architecture of an embodiment of the present invention. In all embodiments of the present invention, system network elements include terminal UE, eNodeB, MME, and MSC. In the LTE mobile broadband access network, voice communication based on GoogleTalk and Skype software will be the choice of some LTE terminal users. The industry refers to the implementation of voice communication, that is, the way of providing voice services based on the Internet, as an OTT (Over The Top, on the upper layer of the Internet) way.

The methods disclosed in the above-mentioned embodiments of the present invention may be implemented in or by a central processing unit. The central processing unit may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by an integrated logic circuit of hardware in the central processing unit or an instruction in the form of software. For performing the method disclosed in the embodiment of the present invention, the above-mentioned central processing unit can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like. The steps of the methods disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register. The storage medium is located in the memory, and the central processing unit reads the information in the memory, and completes the steps of the above method in combination with its hardware.

Embodiment one:

As shown in Figure 2, the process of service migration in the embodiment of the present invention is as follows:

S101. The mobile switching center MSC receives a service request from the first terminal, and the request includes subscription information of the first terminal;

Wherein, the first terminal's subscription information may include an identifier for preferentially selecting an OTT call mode, or may not include the identifier.

S102. According to the subscription information, it is judged that the first terminal preferentially selects the OTT method to make a call, and obtains the OTT account in the subscription information;

Wherein, before sending the OTT account number to the second terminal, the MSC expands the short message SMS format or the unstructured supplementary service data USSD format, and encapsulates the OTT account number in the SMS message or USSD message.

S103. Send the OTT account to the second terminal, and complete the service negotiation between the first terminal and the second terminal.

It should be noted that, when the first terminal is the calling terminal, the second terminal is the called terminal, and when the first terminal is the called terminal, the second terminal is the calling terminal.

In the method provided by the embodiment of the present invention, the mobile switching center MSC receives the service request of the first terminal, and the request includes the subscription information of the first terminal, and judges that the first terminal prefers OTT according to the subscription information. call through the method, obtain the OTT account in the subscription information, send the OTT account to the second terminal, and complete the service negotiation between the first terminal and the second terminal. Solve the problem of 4G falling back to 2/3G voice call delay and improve user experience.

Embodiment two:

Fig. 3 is the flow chart of the embodiment of the present invention, as shown in Fig. 3, the flow chart of the embodiment of the present invention is as follows:

S201. The first terminal initiates a service request;

The first terminal initiates a call and sends an ExtendServiceRequest message to the MME, and the MME transparently transmits the request message to the MSC.

It should be noted that the message includes subscription information, and the subscription information may or may not include the identifier of the preferred OTT negotiation mode. The identifier indicates that the first terminal preferably chooses to use the OTT method for service negotiation, for example, the OTT method for voice calls.

If the first terminal is the calling terminal, then directly send the service request; if the first terminal is the called terminal, before initiating the service request, the network side MSC/VLR or third-party server receives the incoming call IAM message; MSC/VLR The VLR or the third-party server delivers the paging message to the MME, and the MME sends the paging message to the called terminal.

S202. The MSC judges its service negotiation mode;

If the service request message does not include the identifier of the OTT negotiation method, the MSC receives the service request of the first terminal, and directly judges that the first terminal prefers the OTT method for service negotiation according to the subscription information in the service request;

If the identifier is included, it is determined directly based on the identifier that the first terminal prefers the OTT mode for service negotiation.

S203. The MSC acquires an OTT account;

The MSC retrieves the OTT account, calling number and called number of the first terminal in the message.

S204. The MSC sends the OTT account to the second terminal;

The MSC notifies the second terminal of the OTT account number and the desired OTT call information by sending a short message/USSD or playing a tone. It should be noted that when the first terminal is the calling terminal, the second terminal is the called terminal; when the first terminal is the called terminal, the second terminal is the calling terminal.

After receiving the notification from the network side, the called terminal returns a message indicating acceptance or rejection of the request; if the called party accepts the request, the called OTT account can be carried to the network side at the same time.

S205. Complete the negotiation between the first terminal and the second terminal.

After receiving the feedback from the called terminal, the network side notifies the first terminal of the feedback information of the second terminal, and completes the negotiation of the service mode between the two parties.

In the method for service negotiation under the LTE network provided by the embodiment of the present invention, the mobile switching center MSC receives the service request of the first terminal, the request includes the subscription information of the first terminal, and judges the first terminal according to the subscription information. A terminal preferentially chooses the OTT method to make a call, acquires the OTT account in the subscription information, and sends the OTT account to the second terminal, completing the service negotiation between the first terminal and the second terminal. Solve the problem of 4G falling back to 2/3G voice call delay and improve user experience.

Embodiment three:

Figure 4 is a composition structure diagram of MSC, as shown in Figure 4, MSC includes

a receiving unit 301, configured to receive a service request from a first terminal, where the request includes subscription information of the first terminal;

Wherein, the first terminal's subscription information may include an identifier for preferentially selecting an OTT call mode, or may not include the identifier.

A judging unit 302, configured to judge, according to the subscription information, that the first terminal preferentially selects an OTT method to make a call;

An obtaining unit 303, configured to obtain the OTT account number in the subscription information;

The sending unit 304 is configured to send the OTT account number to the second terminal to complete the service negotiation between the first terminal and the second terminal.

Wherein, before sending the OTT account number to the second terminal, the MSC expands the short message SMS format or the unstructured supplementary service data USSD format, and encapsulates the OTT account number in the SMS message or USSD message.

It should be noted that, when the first terminal is the calling terminal, the second terminal is the called terminal, and when the first terminal is the called terminal, the second terminal is the calling terminal.

Fig. 5 has described the hardware architecture diagram of the infrastructure management node provided by another embodiment of the present invention, comprises at least one processor 401 (such as CPU), at least one network interface 402 or other communication interfaces, memory 403, and at least one communication bus 404, configured to implement connection and communication between these devices. The processor 401 is used to execute executable modules, such as computer programs, stored in the memory 403 . The memory 403 may include a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the system gateway and at least one other network element is realized through at least one network interface 402 (which can be wired or wireless), and the Internet, wide area network, local network, metropolitan area network, etc. can be used.

In some implementations, the memory 403 stores program instructions, which can be executed by the processor 401, wherein the program instructions include a receiving unit 301, a judging unit 302, an acquiring unit 303, and a sending unit 304, wherein the specific implementation of each unit Refer to the corresponding units disclosed in FIG. 5 , which will not be repeated here.

In the MSC provided by the embodiment of the present invention, the receiving unit receives the service request of the first terminal, the request includes the subscription information of the first terminal, and the judging unit judges that the first terminal prefers the OTT mode according to the subscription information During a call, the acquiring unit acquires the OTT account in the subscription information, and the sending unit sends the OTT account to the second terminal, completing the service negotiation between the first terminal and the second terminal. Solve the problem of 4G falling back to 2/3G voice call delay and improve user experience.

Embodiment four:

Fig. 6 is a system structure diagram of service negotiation under the LTE network. As shown in Fig. 6, the system includes an MSC, a first terminal and a second terminal, wherein,

The MSC501 is configured to receive a service request from the first terminal, the request includes subscription information of the first terminal, judge according to the subscription information that the first terminal preferentially chooses an OTT method to make a call, and obtain the The OTT account number in the signing information, sending the OTT account number to the second terminal to complete the service negotiation between the first terminal and the second terminal;

Wherein, the first terminal's subscription information may include an identifier for preferentially selecting an OTT call mode, or may not include the identifier.

It should be noted that before sending the OTT account number to the second terminal, the MSC expands the short message SMS format or the unstructured supplementary service data USSD format, and encapsulates the OTT account number in the SMS message or USSD message.

The first terminal 502 is configured to send a service request to the MSC to complete the service negotiation between the first terminal and the second terminal;

The second terminal 503 is configured to receive the OTT account number sent by the MSC, and complete the service negotiation between the first terminal and the second terminal.

It should be noted that, when the first terminal is the calling terminal, the second terminal is the called terminal, and when the first terminal is the called terminal, the second terminal is the calling terminal.

In the system provided by the embodiment of the present invention, the MSC receives the service request of the first terminal, the request includes the subscription information of the first terminal, and judges that the first terminal preferentially selects the OTT method for the call according to the subscription information, Obtaining the OTT account in the subscription information, sending the OTT account to the second terminal, and completing the service negotiation between the first terminal and the second terminal. Solve the problem of 4G falling back to 2/3G voice call delay and improve user experience.

Through the above description of the implementation manners, those skilled in the art can clearly understand that the present invention can be implemented by hardware, firmware, or a combination thereof. When implemented in software, the functions described above may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a computer. By way of example but not limitation: computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or may be used to carry or store information in the form of instructions or data structures desired program code and any other medium that can be accessed by a computer. also. Any connection can suitably be a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, then the coaxial cable , fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, wireless, and microwave are included in the fixation of the respective media. As used herein, disk and disc include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disc, and Blu-ray disc, where discs usually reproduce data magnetically, and discs Lasers are used to optically reproduce the data. Combinations of the above should also be included within the protection level of computer-readable media.

In a word, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the protection level of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection level of the present invention.

Claims (4)

1. A method for completing service negotiation under an LTE network, characterized in that, comprising: The mobile switching center MSC receives the service request of the first terminal, and the request includes the subscription information of the first terminal; Judging according to the subscription information that the first terminal preferentially selects an OTT method for calling, and obtaining an OTT account number in the subscription information; Extended short message SMS format or unstructured supplementary service data USSD format, and encapsulate the OTT account number in the SMS message or USSD message; Sending the OTT account number to the second terminal to complete the service negotiation between the first terminal and the second terminal; Wherein, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode. 2. The method according to claim 1, wherein when the first terminal is the calling terminal, the second terminal is the called terminal, and when the first terminal is the called terminal, the The second terminal is the calling terminal. 3. the mobile switching center MSC that finishes business negotiation under a kind of LTE network, it is characterized in that, comprises: a receiving unit, configured to receive a service request from a first terminal, where the request includes subscription information of the first terminal; a judging unit, configured to judge, according to the subscription information, that the first terminal preferentially selects an OTT method to make a call; An acquisition unit, configured to acquire the OTT account number in the subscription information; a sending unit, configured to send the OTT account number to a second terminal to complete the service negotiation between the first terminal and the second terminal; Wherein, the MSC also includes: An encapsulation unit, configured to expand the short message SMS format or the unstructured supplementary service data USSD format, and encapsulate the OTT account number in the SMS message or the USSD message; Wherein, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode. 4. A system for completing service negotiation under an LTE network, characterized in that, comprising a mobile switching center MSC, a first terminal and a second terminal, wherein, The MSC is configured to receive a service request from the first terminal, the request includes subscription information of the first terminal, judge according to the subscription information that the first terminal preferentially selects an OTT method to make a call, and obtain the The OTT account number in the signing information, sending the OTT account number to the second terminal to complete the service negotiation between the first terminal and the second terminal; The first terminal is configured to send a service request to the MSC to complete the service negotiation between the first terminal and the second terminal; The second terminal is configured to receive the OTT account number sent by the MSC, and complete the service negotiation between the first terminal and the second terminal; The MSC is also used to expand the short message SMS format or the unstructured supplementary service data USSD format, and encapsulate the OTT account number in the SMS message or USSD message; Wherein, the subscription information of the first terminal includes an identifier for preferentially selecting an OTT call mode.