CN110351701B - Communication method, device and storage medium for international roaming voice service - Google Patents

Communication method, device and storage medium for international roaming voice service Download PDF

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Publication number
CN110351701B
CN110351701B CN201910733164.8A CN201910733164A CN110351701B CN 110351701 B CN110351701 B CN 110351701B CN 201910733164 A CN201910733164 A CN 201910733164A CN 110351701 B CN110351701 B CN 110351701B
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China
Prior art keywords
call request
user equipment
called user
sbc
roaming
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CN110351701A (en
Inventor
黄笑磊
王九九
董双赫
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/11—Allocation or use of connection identifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H04W8/12—Mobility data transfer between location registers or mobility servers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/10—Architectures or entities
    • H04L65/1046—Call controllers; Call servers

Abstract

The invention provides a communication method, a communication device and a storage medium of international roaming voice service. The communication method comprises the following steps: receiving a first call request sent by calling user equipment, inquiring the roaming state and the opened service information of the called user equipment according to the International Mobile Subscriber Identity (IMSI) of the called user in the first call request, and sending the first call request to a boundary SBC when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, so that the boundary SBC pages the called user equipment through a VoIP network. The communication method realizes the voice communication connection between the roaming user and the domestic telecommunication network user in a VoIP mode.

Description

Communication method, device and storage medium for international roaming voice service
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a communication method, a communication device and a storage medium of international roaming voice service.
Background
VoIP (voice over IP) is based on an IP packet switching network, and a series of processes such as digitalization, compression, packing, and encapsulating into frames are performed on a conventional analog voice signal, so that voice traffic can be carried through an IP network, and a classic VoIP network architecture is shown in fig. 1. The country is limited by the operator and policy reasons, the VoIP service is not opened, and voice communication is mainly performed based on the No.7 telecommunication network.
When a user roams abroad, two main ways of realizing voice communication with domestic users are available: 1) the roaming user uses the telecommunication network of the local operator to realize roaming voice communication with the domestic user, so that the cost is high; 2) the roaming user realizes IP voice communication with the home user in an IP network, such as WeChat voice and the like. When the domestic user directly pages the mobile phone number of the foreign user through the home telecommunication network, if the foreign user does not activate the roaming voice service, the user can not be paged through the telecommunication network of the local operator.
Disclosure of Invention
The invention provides a communication method, a device and a storage medium of international roaming voice service, which realize the voice communication connection between a roaming user and a domestic telecommunication network user in a VoIP mode and have lower charge.
A first aspect of the present invention provides a communication method for an international roaming voice service, including:
receiving a first call request sent by calling user equipment, wherein the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, the first call request is sent to a boundary SBC, so that the boundary SBC pages the called user equipment through a VoIP network.
In a possible implementation manner, the determining that the called user equipment is in the international roaming state and the roaming communication service is opened includes:
determining the HSS to which the called user equipment belongs according to the IMSI of the called user;
and determining whether the called user equipment is in an international roaming state and whether a roaming communication service is opened according to the record information of the HSS to which the called user equipment belongs.
In a possible implementation manner, the receiving a first call request sent by a calling user equipment includes:
and receiving a first call request sent by calling user equipment based on the No.7 signaling protocol.
A second aspect of the present invention provides a communication method for an international roaming voice service, including:
receiving a first call request sent by calling user equipment, wherein the first call request is a call request based on a No.7 signaling protocol;
and paging the called user equipment through the VoIP network, wherein the called user equipment is in an international roaming state and has opened a roaming communication service.
In one possible implementation, the paging the called user equipment through the VoIP network includes:
converting the first call request into a second call request based on a SIP protocol;
and forwarding the second call request to an entrance SBC where the called user equipment is located, so that the entrance SBC pages the called user equipment through an SIP gateway.
In a possible implementation manner, the receiving a first call request sent by a calling user equipment includes:
receiving a first call request sent by calling user equipment forwarded by a Mobile Management Entity (MME).
A third aspect of the present invention provides a communication apparatus for international roaming voice service, including:
the system comprises a receiving module, a sending module and a sending module, wherein the receiving module is used for receiving a first call request sent by calling user equipment, and the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
and the sending module is used for sending the first call request to a boundary SBC when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, so that the boundary SBC pages the called user equipment through a VoIP network.
A fourth aspect of the present invention provides a communication apparatus for an international roaming voice service, including:
the system comprises a receiving module, a sending module and a sending module, wherein the receiving module is used for receiving a first call request sent by calling user equipment, and the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
and the paging module is used for paging the called user equipment through the VoIP network, and the called user equipment is in an international roaming state and has opened the roaming communication service.
A fifth aspect of the present invention provides a communication apparatus for international roaming voice service, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method according to any one of the first aspect of the invention.
A sixth aspect of the present invention provides a communication apparatus for an international roaming voice service, including:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method according to any one of the second aspects of the invention.
A seventh aspect of the invention provides a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the method according to any one of the first aspect of the invention.
An eighth aspect of the invention provides a computer readable storage medium having stored thereon a computer program for execution by a processor to perform the method according to any one of the second aspects of the invention.
The embodiment of the invention provides a communication method, a communication device and a storage medium of international roaming voice service. The communication method comprises the following steps: receiving a first call request sent by calling user equipment, inquiring the roaming state and the opened service information of the called user equipment according to the International Mobile Subscriber Identity (IMSI) of the called user in the first call request, and sending the first call request to a boundary SBC when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, so that the boundary SBC pages the called user equipment through a VoIP network. The communication method realizes the voice communication connection between the roaming user and the domestic telecommunication network user in a VoIP mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of a conventional VoIP network architecture;
fig. 2 is a system architecture diagram of a communication method of an international roaming voice service according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a communication method of an international roaming voice service according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a communication method of an international roaming voice service according to another embodiment of the present invention;
fig. 5 is an interaction diagram of a communication method of an international roaming voice service according to an embodiment of the present invention;
fig. 6 is a functional structure diagram of a communication device for international roaming voice services according to an embodiment of the present invention;
fig. 7 is a functional structure diagram of a communication device for international roaming voice services according to another embodiment of the present invention;
fig. 8 is a schematic hardware structure diagram of a communication device for international roaming voice services according to an embodiment of the present invention;
fig. 9 is a schematic hardware configuration diagram of a communication device for international roaming voice services according to another embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 2 is a system architecture diagram of a communication method of an international roaming voice service according to an embodiment of the present invention. As shown in fig. 2, the communication system provided in this embodiment includes a national telecommunication network and an international Internet network, where the national telecommunication network is based on No.7 signaling for transmission, and the international Internet network is based on SIP signaling for transmission.
The No.7 signaling (signaling No. 7) is also called common channel signaling, and is a signaling method of transmitting a group of voice channel signaling on a high speed data link in a time division manner. SIP signaling is an application-layer signaling control protocol for creating, modifying and releasing sessions of one or more participants, which may be Internet multimedia conferencing, IP telephony, or multimedia distribution.
The domestic telecommunication network of this embodiment includes user equipment UE1, base station eNB, mobility management entity MME, home subscriber server HSS and session border controller SBC1, see fig. 2, and the functions of each device in fig. 2 are as follows:
eNB: an eNodeB providing an air interface (air interface) for a user equipment, which may be wirelessly connected to the eNB, which is responsible for managing the UE, including resource allocation, scheduling, managing access policies, and so on.
MME: mobility Management Entity, one of the most important entities in the core network, provides NAS signaling transmission, user authentication and roaming Management, and Mobility Management. Only after the signaling is established, the core network EPC can implement the next service bearer.
HSS: and the Home Subscriber Server stores all data information belonging to the core network Subscriber. When the user connects to MME, the data submitted by the user will be compared with the data in HSS data server for authentication.
In this embodiment, the HSS has the following two functions: firstly, the information of the user's foreign roaming is stored in HSS, when a domestic calling user pages the user, MME can know that the user has been roaming abroad when authenticating to HSS; when the user applies for customizing the roaming communication service, the HSS marks the user and sends the paging signaling of the call to the SBC network element.
SBC: session Border Controller, Session Border Controller. SBCs have gradually become standard configuration products (like Lanswitch and router) for NGN and IMS networks, also widely referred to as BAC (border access controller), and are located in abg (access border gateway) of IMS networks to solve the problems of NAT/FW traversal, security, interworking, QoS, etc. encountered in NGN service deployment. SBCs are typically located between two service provider networks in a peer-to-peer environment, or between an access network and a backbone network that provide services to residential and enterprise users. While some SBCs only handle signaling, most handle both signaling and media. The SBC implements communication between the components for processing signaling and the components for processing media stream signaling, and the communication is performed inside the SBC.
It should be noted that, in this embodiment, the SBC mainly implements the conversion between the No.7 paging signaling and the SIP signaling, including: the No.7 signaling is converted into SIP signaling, and is sent to a foreign entrance SBC to page a roaming user; and the SIP signaling is converted into No.7 signaling, so that the domestic departure SBC is in butt joint with the foreign entrance SBC.
The international Internet network of this embodiment includes a session border controller SBC2, a SIP gateway, and a user equipment UE2, see fig. 2, where the user equipment UE2 in fig. 2 connects to the Internet network through WIFI. SIP gateways, i.e., voice gateways for IP telephony, address users and enable routing distribution of voice media streams.
Based on the communication system architecture, the embodiment of the invention provides a communication method of international roaming voice service, which realizes seamless voice communication connection between a foreign roaming user and a domestic user in a VoIP mode, so that the roaming user realizes voice communication with the domestic telecommunication network user in a VoIP mode with lower cost abroad.
The technical solution of the present invention will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 3 is a flowchart illustrating a communication method of an international roaming voice service according to an embodiment of the present invention. The method provided by the embodiment can be executed by any communication device executing the international roaming voice service, and the communication device can be realized by software and/or hardware.
In this embodiment, the communication apparatus may be a mobility management entity MME shown in fig. 2, and the communication method provided in this embodiment is described below with the MME as an executing subject.
As shown in fig. 3, the communication method provided in this embodiment includes the following steps:
s101, receiving a first call request sent by calling user equipment, wherein the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user.
Specifically, the MME receives, through the base station eNB, a first call request sent by the calling user equipment, where the first call request is a call request based on the No.7 signaling protocol.
S102, when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, the first call request is sent to the boundary SBC, so that the boundary SBC pages the called user equipment through the VoIP network.
In this embodiment, the MME determines, according to the IMSI of the called user in the first call request, the HSS to which the called user belongs, and then determines, according to the record information of the HSS to which the called user belongs, whether the called user equipment is in an international roaming state and whether a roaming communication service is opened.
The record information of the HSS to which the called user belongs comprises the position information of the called user and the service information opened by the called user. When the called user roams to foreign heterogeneous network and starts up to register the network, the MSC/VLR of the roaming place sends a location updating request to the HSS to which the called user belongs, and the location updating request comprises the IMSI of the called user and the MSC ID of the roaming place. And the HSS to which the called user belongs updates the position information of the called user according to the received position updating request so as to inquire the position information of the called user in the subsequent voice call.
It should be noted that, the called user of this embodiment applies for opening the roaming communication service in advance, the roaming communication service is different from the service of implementing roaming voice communication between the telecommunication network based on the foreign local operator and the domestic user in the prior art, the roaming communication service of this embodiment is a voice communication service based on the foreign VoIP network and the domestic telecommunication network, the cost of the roaming communication service is low, and the voice communication quality is stable.
When the called user opens the roaming communication service, the domestic operator records the service information customized by the user on the HSS to which the called user belongs, so that the MME transfers the call request according to the service information customized by the user.
The communication method provided by the embodiment of the invention comprises the steps of receiving a first call request sent by calling user equipment, inquiring the roaming state and the opened service information of the called user equipment according to the international mobile subscriber identification number IMSI of the called user in the first call request, and sending the first call request to a boundary SBC when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, so that the boundary SBC pages the called user equipment through a VoIP network. The communication method realizes the voice communication connection between the roaming user and the domestic telecommunication network user in a VoIP mode.
Fig. 4 is a flowchart illustrating a communication method of an international roaming voice service according to another embodiment of the present invention. The method provided by the embodiment can be executed by any communication device executing the international roaming voice service, and the communication device can be realized by software and/or hardware.
In this embodiment, the communication device may be the SBC1 of the national telecommunications network shown in fig. 2. As shown in fig. 4, the communication method provided in this embodiment includes the following steps:
s201, receiving a first call request sent by calling user equipment, wherein the first call request is based on a No.7 signaling protocol.
Specifically, a border SBC of the domestic telecommunication network receives a first call request sent by a calling user equipment, which is forwarded by a mobility management entity MME.
In this embodiment, the border SBC may receive the first call request forwarded by the MME only when the called user in the first call request is currently in the international roaming state and the called user opens the roaming communication service in advance. That is, if the called user in the first call request is currently in the international roaming state, but the called user does not open the roaming communication service, the called user cannot be called. The roaming communication service of this embodiment is different from the roaming communication service of the prior art, and reference may be specifically made to the above embodiments, which are not described herein again.
S202, paging the called user equipment through the VoIP network, wherein the called user equipment is in an international roaming state and has opened a roaming communication service.
Specifically, after receiving a first call request sent by a calling user equipment and forwarded by an MME, a border SBC may page a called user equipment in a roaming state by the following steps:
step 1, converting the first call request into a second call request based on an SIP protocol.
The border SBC of this embodiment has a protocol conversion function, and can convert the No.7 protocol of the domestic telecommunication network into the SIP protocol of the foreign VoIP network.
The boundary SBC of this embodiment corresponds to SBC1 shown in fig. 2.
And 2, forwarding the second call request to an entrance SBC where the called user equipment is located, so that the entrance SBC pages the called user equipment through an SIP gateway.
The inbound SBC of this embodiment receives the second call request based on the SIP protocol through the Internet, and forwards the second call request to the SIP gateway where the called user equipment is located, thereby implementing the voice communication between the called user and the calling user of the domestic telecommunication network in a VoIP manner abroad.
The inbound SBC of this embodiment corresponds to SBC2 shown in figure 2.
In the communication method provided by the embodiment of the invention, the first call request which is sent by the calling user equipment and comprises the international mobile subscriber identity IMSI of the called user is received, the first call request is based on the No.7 signaling protocol, and the called user equipment which is in the international roaming state and has opened the roaming communication service is paged through the VoIP network after the protocol conversion is carried out. The communication method realizes the voice communication connection between the roaming user and the domestic telecommunication network user in a VoIP mode.
Fig. 5 is an interaction diagram of a communication method of an international roaming voice service according to an embodiment of the present invention. As shown in fig. 5, the communication method provided in this embodiment includes the following steps:
s301, a calling user equipment sends a first call request to an MME through a base station, wherein the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
s302, when the called user equipment is determined to be in the international roaming state and the roaming communication service is opened, the MME forwards a first call request to a boundary SBC;
s303, the boundary SBC converts the first call request into a second call request based on an SIP protocol;
s304, the boundary SBC forwards the second call request to the entrance SBC where the called user equipment is located;
s305, the entrance SBC forwards a second call request to the SIP gateway where the called user equipment is located;
s306, establishing voice communication.
The above interaction process is the same as the embodiment shown in fig. 3 and fig. 4, and reference may be made to the above embodiment specifically, which is not described herein again. Through the interactive mode provided by the embodiment, the voice communication connection between the roaming user and the domestic telecommunication network user in a VoIP mode is realized.
Fig. 6 is a functional structure diagram of a communication device for international roaming voice services according to an embodiment of the present invention. As shown in fig. 6, the communication apparatus provided in this embodiment includes:
a receiving module 41, configured to receive a first call request sent by a calling user equipment, where the first call request includes an international mobile subscriber identity IMSI of a called user;
a sending module 42, configured to send the first call request to a border SBC when it is determined that the called user equipment is in an international roaming state and a roaming communication service is enabled, so that the border SBC pages the called user equipment through a VoIP network.
Optionally, the communication device further includes: a determination module 43;
the determining module 43 is configured to:
determining the HSS to which the called user equipment belongs according to the IMSI of the called user;
and determining whether the called user equipment is in an international roaming state and whether a roaming communication service is opened according to the record information of the HSS to which the called user equipment belongs.
Optionally, the receiving module 41 is specifically configured to:
and receiving a first call request sent by calling user equipment based on the No.7 signaling protocol.
The communication apparatus provided in this embodiment may execute the technical solution of the method embodiment shown in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 7 is a functional structure diagram of a communication device for international roaming voice services according to another embodiment of the present invention. As shown in fig. 7, the communication apparatus provided in this embodiment includes:
a receiving module 51, configured to receive a first call request sent by a calling user equipment, where the first call request is a call request based on No.7 signaling protocol;
and the paging module 52 is configured to page the called user equipment through the VoIP network, where the called user equipment is in an international roaming state and has opened a roaming communication service.
Optionally, the paging module 52 is specifically configured to:
converting the first call request into a second call request based on a SIP protocol;
and forwarding the second call request to an entrance SBC where the called user equipment is located, so that the entrance SBC pages the called user equipment through an SIP gateway.
Optionally, the receiving module 51 is specifically configured to:
receiving a first call request sent by calling user equipment forwarded by a Mobile Management Entity (MME).
The communication apparatus provided in this embodiment may execute the technical solution of the method embodiment shown in fig. 4, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 8 is a hardware configuration diagram of a communication device of an international roaming voice service according to an embodiment of the present invention, and as shown in fig. 8, a communication device 60 according to the present embodiment includes:
a memory 61;
a processor 62; and
a computer program;
wherein the computer program is stored in the memory 61 and configured to be executed by the processor 62 to implement the technical solution of the embodiment of the method shown in fig. 3, which has similar implementation principle and technical effect, and is not described herein again.
Alternatively, the memory 61 may be separate or integrated with the processor 62.
When the memory 61 is a device independent of the processor 62, the communication apparatus 60 further includes: a bus 63 for connecting the memory 61 and the processor 62.
Fig. 9 is a hardware configuration diagram of a communication device for international roaming voice service according to another embodiment of the present invention, and as shown in fig. 9, the communication device 70 according to this embodiment includes:
a memory 71;
a processor 72; and
a computer program;
wherein the computer program is stored in the memory 71 and configured to be executed by the processor 72 to implement the technical solution of the embodiment of the method shown in fig. 4, which has similar implementation principle and technical effect, and is not described herein again.
Alternatively, the memory 71 may be separate or integrated with the processor 72.
When the memory 71 is a device independent of the processor 72, the communication apparatus 70 further includes: a bus 73 for connecting the memory 71 and the processor 72.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor 62 to implement the steps performed by the communication device 60 in the above method embodiments.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor 72 to implement the steps performed by the communication device 70 in the above method embodiments.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of modules is only one logical division, and other divisions may be realized in practice, for example, a plurality of modules may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each module may exist alone physically, or two or more modules are integrated into one unit. The unit formed by the modules can be realized in a hardware form, and can also be realized in a form of hardware and a software functional unit.
The integrated module implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present application.
It should be understood that the Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present invention may be embodied directly in a hardware processor, or in a combination of the hardware and software modules within the processor.
The memory may comprise a high-speed RAM memory, and may further comprise a non-volatile storage NVM, such as at least one disk memory, and may also be a usb disk, a removable hard disk, a read-only memory, a magnetic or optical disk, etc.
The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, the buses in the figures of the present application are not limited to only one bus or one type of bus.
The storage medium may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuits (ASIC). Of course, the processor and the storage medium may reside as discrete components in an electronic device or host device.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A communication method for international roaming voice service, comprising:
receiving a first call request sent by calling user equipment based on a No.7 signaling protocol, wherein the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
when the fact that the called user equipment is in the international roaming state and the roaming communication service is opened is determined, the first call request is sent to a boundary SBC, so that the boundary SBC converts the first call request into a second call request based on an SIP protocol, and after the second call request is forwarded to an entrance SBC where the called user equipment is located, the entrance SBC pages the called user equipment through an SIP gateway.
2. The method of claim 1, wherein the determining that the called user equipment is in the international roaming state and the roaming communication service is enabled comprises:
determining the HSS to which the called user equipment belongs according to the IMSI of the called user;
and determining whether the called user equipment is in an international roaming state and whether a roaming communication service is opened according to the record information of the HSS to which the called user equipment belongs.
3. A communication method for international roaming voice service, comprising:
receiving a first call request sent by calling user equipment, wherein the first call request is a call request based on a No.7 signaling protocol;
and converting the first call request into a second call request based on an SIP protocol, and forwarding the second call request to an entrance SBC where the access place of the called user equipment is located, so that the entrance SBC pages the called user equipment through an SIP gateway, and the called user equipment is in an international roaming state and has opened roaming communication services.
4. The method of claim 3, wherein receiving the first call request sent by the calling user equipment comprises:
receiving a first call request sent by calling user equipment forwarded by a Mobile Management Entity (MME).
5. A communication device for international roaming voice services, comprising:
the system comprises a receiving module, a sending module and a sending module, wherein the receiving module is used for receiving a first call request sent by calling user equipment based on a No.7 signaling protocol, and the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
the sending module is configured to send the first call request to a border SBC when it is determined that the called user equipment is in an international roaming state and a roaming communication service is opened, so that the border SBC converts the first call request into a second call request based on an SIP protocol, and after the second call request is forwarded to an inbound SBC where the called user equipment is located, the inbound SBC pages the called user equipment through an SIP gateway.
6. A communication device for international roaming voice services, comprising:
the system comprises a receiving module, a sending module and a sending module, wherein the receiving module is used for receiving a first call request sent by calling user equipment based on a No.7 signaling protocol, and the first call request comprises an International Mobile Subscriber Identity (IMSI) of a called user;
and the paging module is used for converting the first call request into a second call request based on an SIP protocol, and forwarding the second call request to an entrance SBC where the called user equipment is located, so that the entrance SBC pages the called user equipment through an SIP gateway, and the called user equipment is in an international roaming state and has opened roaming communication services.
7. A communication device for international roaming voice services, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of claim 1 or 2.
8. A communication device for international roaming voice services, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of claim 3 or 4.
9. A computer-readable storage medium, on which a computer program is stored which is executed by a processor to implement the method according to claim 1 or 2.
10. A computer-readable storage medium, on which a computer program is stored which is executed by a processor to implement the method according to claim 3 or 4.
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