CN109981524B

CN109981524B - User number partition access method, device, equipment and medium

Info

Publication number: CN109981524B
Application number: CN201711446397.7A
Authority: CN
Inventors: 梁聚宏; 高军博; 李赟; 许峥; 王国栋; 冯俊敏; 张尧
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Group Hebei Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Group Hebei Co Ltd
Priority date: 2017-12-27
Filing date: 2017-12-27
Publication date: 2021-06-04
Anticipated expiration: 2037-12-27
Also published as: CN109981524A

Abstract

The embodiment of the invention provides a user number partition access method, a device, equipment and a medium. Wherein, the method comprises the following steps: the S-CSCF receives a calling request of a calling party sent by the P-CSCF; the method comprises the steps that S-CSCF triggers Centrex AS charging and triggers I-CSCF to send a position information query request to HSS under the condition that the called party number of a call request is a non-emergency number, wherein the position information query request is used for querying position information signed by a calling party; the S-CSCF receives the position information signed by the calling party returned by the I-CSCF; the S-CSCF converts the called party number into a landing number of the call center corresponding to the position information signed by the calling party; and the S-CSCF carries out number routing according to the landing number. The invention can solve the problem of poor user experience or high cost caused by the need of adding SBC equipment to support the partition access in the prior art, improve the user experience and reduce the cost for realizing the partition access.

Description

User number partition access method, device, equipment and medium

Technical Field

The present invention relates to the field of wireless network technologies, and in particular, to a method, an apparatus, a device, and a medium for user number partition access.

Background

An IP Multimedia Subsystem (IMS for short) is a new Multimedia service form, and can meet the requirements of modern and more diversified Multimedia services for terminal clients. The IMS can not only implement Voice over Internet Protocol (VoIP) services, but also manage network resources, user resources, and application resources more efficiently, thereby improving the intelligence of the network, and enabling users to cross various networks and use various terminals to experience converged communication experience.

IMS was first proposed by the third generation partnership project (3GPP) in Release 5, the concept of which is already well known to the industry. IMS is an open system architecture based on Session Initiation Protocol (SIP), as shown in fig. 1. The IMS is an important means for improving the control capability of network multimedia services, and is also a key technology for the core network to evolve into a unified and converged network. The IMS absorbs and uses the open mode of the Internet, and has the characteristics of opening and merging naturally. The IMS, as a core technology of the next generation network, further realizes separation of operator network control and service on the basis of separation of operator network control and bearer in the soft switching network.

The IMS has the characteristics that: 1) access independence. IMS supports multiple fixed/mobile access modes. 2) And (4) controlling the attribution. The call control and the service control of the IMS are completed by the home network, so that the consistency of service provision is ensured, and the provision of provincial special services is easy to realize. 3) Control is separated from traffic. IMS breaks through a shaft type service deployment mode, completely separates services from control, and provides unprecedented openness and flexibility for operator networks. 4) All IP end-to-end system architecture. The IMS adopts an end-to-end IP System architecture, and the IMS network element has no signaling point code concept, and it adopts an IP-based routing manner to implement routing addressing through a Telephone Number Mapping working group (ENUM)/Domain Name System (DNS).

From the key point of IMS deployment of current home and abroad operators, the mobile operators mainly cooperate the IMS with the existing mobile network to provide multimedia value-added services such as message and video sharing, multimedia conferences and the like; an all-service operator mainly adopts an IMS (IP multimedia subsystem) to provide an IP-based centralized service exchanger (IP Centrex) service for group customers so as to replace Private Branch eXchange (PBX) equipment of an enterprise, and hopes to access fixed and mobile users through a unified IMS network; traditional fixed Network operators are more concerned about realizing Public Switched Telephone Network (PSTN) Network change by using IMS technology. IMS will offer the end-to-end solution facing convergence and broadband multimedia business for the operator, offer more advanced, more effective technological means for expanding group, family and individual user's market; the IMS also creates a unified core network architecture, realizes unified control on fixed movement, reduces the construction and maintenance cost of the core network of an operator, and ensures that the full-service operation of the operator keeps continuous competitiveness.

The IMS provides fixed voice and multimedia services to group, personal, and home users using broadband as a main access mode. At the initial stage, services such as multimedia telephone, unified Centrex, multimedia coloring ring, integrated one-number-one-call, multimedia conference, high-definition video conference, fax, message/presentation/group and the like are provided; subsequently, more services will be provided as the services evolve.

With the continuous development of the IMS service, the requirement of users for the partition access of emergency numbers is increasingly urgent, and the function needs to be added urgently.

And (4) access in a subarea, namely, when a user calls a certain number, the user is connected to different call centers according to the geographical position of the user.

Since the IMS service is technically different from the conventional mobile communication service, the support level for some services is different. For example, the conventional mobile device determines according to a Location Area Code (LAC) and a Cell identifier (Cell ID, CID) where the mobile user is located, so as to access the call center nearby; the IMS device does not have a concept of location area in the technology, so that emergency numbers such as 110 are not accessed in a partitioned manner according to the early network setting principle, but are uniformly dialed according to users in urban areas.

Because IMS users have a fixed location, in order to meet the service requirements of users, the IP address of a Session Border Controller (SBC) for a user is used to distinguish the area where the user is located, so as to implement access in a partitioned manner. Although the area where the user is located is distinguished through the IP address of the user accessing the SBC, the partition access problem can be solved theoretically, but the scheme has the following defects: because partition planning is not performed in the early stage, only one set of SBC is built in each city, the area where the user is located cannot be partitioned from the IP address, and the SBC equipment needs to be newly built and the existing user is cut over. Newly building the SBC requires at least one part of SBC to be built in each county and district, and a large amount of resources can be wasted according to the number of the existing users; the existing user cutover needs to reconnect users in each county and district to the newly-built SBC, which can cause serious influence on user perception.

Fig. 2 shows a system structure of the E-CSCF based emergency number zoning access, which adopts the following manner: the user terminal supports reporting the user position information through an Access and position information (P-Access-Network-Info) header field, and assists the core Network to acquire the accurate position of the terminal. A Proxy Call Session Control Function (Proxy-Call Session Control Function, abbreviated as P-CSCF) identifies an Emergency Call prefix, and checks a P-Access-Network-Info header field, if the header field is absent, the P-CSCF adds the header field and routes a Call to an E-CSCF (Emergency Call Session Control Function, abbreviated as E-CSCF) having an Emergency Call processing capability; after the E-CSCF identifies the emergency call, the E-CSCF verifies the requested P-Access-Network-Info header field, extracts the user Location information, or obtains the user Location information and the emergency call center call route number of the user by querying a Connectivity session Location and storage Function (CLF), and routes the Location information and the emergency call center call route number to the nearest emergency call center according to the route number.

Due to the deployment problem of E-CSCF, CLF, E2 (interface between P-CSCF and CLF), i.e. the bold dashed line in fig. 2 is not currently implemented in IMS networks, emergency call scenarios implemented by IMS networks based on E-CSCF are temporarily not supported.

In summary, no effective solution is proposed at present for the problem in the prior art that the IMS network cannot support the partition access of the emergency call, or the SBC device needs to be added to support the partition access, which results in poor user experience or high cost.

Disclosure of Invention

Embodiments of the present invention provide a method, an apparatus, a device, and a medium for a user number partition access, which can solve the problem in the prior art that an IMS network cannot support a partition access of an emergency call, or an SBC device needs to be added to support the partition access, resulting in poor user experience or high cost.

In a first aspect, an embodiment of the present invention provides a method for accessing a subscriber number in a partitioned manner, where the method includes:

the S-CSCF receives a calling request of a calling party sent by the P-CSCF;

the S-CSCF triggers Centrex AS charging and triggers I-CSCF to send a position information query request to a Home Subscriber Server (HSS) under the condition that the called party number of the call request is a non-emergency number, wherein the position information query request is used for querying the position information signed by the calling party;

the S-CSCF receives the position information signed by the calling party returned by the I-CSCF;

the S-CSCF converts the called party number into a landing number of a call center corresponding to the position information signed by the calling party;

and the S-CSCF carries out number routing according to the landing number.

In a second aspect, an embodiment of the present invention provides a device for accessing a subscriber number partition, where the device is applied to an S-CSCF, and the device includes:

the first receiving module is used for receiving a calling request of a calling party sent by the P-CSCF;

a triggering module, configured to trigger Centrex AS charging and trigger an I-CSCF to send a location information query request to an HSS when a called party number of the call request is a non-emergency number, where the location information query request is used to query location information signed by the calling party;

the second receiving module is used for receiving the position information which is returned by the I-CSCF and signed by the calling party;

the conversion module is used for converting the called party number into a landing number of a call center corresponding to the position information signed by the calling party;

and the routing module is used for carrying out number routing according to the landing number.

In a third aspect, an embodiment of the present invention provides a user number partition access device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.

In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which computer program instructions are stored, which, when executed by a processor, implement the method of the first aspect in the foregoing embodiments.

In a fifth aspect, an embodiment of the present invention provides a method for accessing a subscriber number in a partitioned manner, where the method includes:

the HSS receives a position information query request sent by a calling party from an I-CSCF, wherein the position information query request is used for querying position information signed by the calling party;

the HSS inquires the position information signed by the calling party according to the position information inquiry request;

and the HSS sends the position information signed by the calling party to the S-CSCF of the calling party through the I-CSCF, so that the S-CSCF converts the number of the called party into a landing number of a call center corresponding to the position information signed by the calling party, and number routing is carried out according to the landing number.

In a sixth aspect, an embodiment of the present invention provides a device for accessing a subscriber number partition, where the device is applied to an HSS, and the device includes:

a third receiving module, configured to receive, from an I-CSCF, a location information query request sent by a calling party, where the location information query request is used to query location information signed by the calling party;

the inquiry module is used for inquiring the position information signed by the calling party according to the position information inquiry request;

and the sending module is used for sending the position information signed by the calling party to the S-CSCF of the calling party through the I-CSCF so that the S-CSCF converts the number of the called party into a floor number of a call center corresponding to the position information signed by the calling party, and number routing is carried out according to the floor number.

In a seventh aspect, an embodiment of the present invention provides a user number partition access device, including: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of the fifth aspect of the embodiments described above.

In an eighth aspect, embodiments of the present invention provide a computer-readable storage medium, on which computer program instructions are stored, which, when executed by a processor, implement the method of the fifth aspect in the above embodiments.

The method, the device, the equipment and the medium for the user number partition access provided by the embodiment of the invention have the advantages that by adding the partition character string of the user position identification in the user attribute for the IMS user, when the user calls the partition access service number, the S-CSCF sets the parameter of the SiFC (Shared Initial Filter Criteria Set, SiFC for short) so that the Centrex AS is not triggered by an emergency call and triggered by a non-emergency number to realize charging, and the service access number is converted into different numbers by the S-CSCF equipment of the IMS system according to the partition character string of the user to realize the partition access purpose, so that the problems of poor user experience or high cost caused by the fact that the SBC equipment is required to support the partition access in the prior art can be solved, the user experience is improved, and the cost for realizing the partition access is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 illustrates a prior art IMS logical architecture diagram;

fig. 2 is a system structure diagram of the prior art E-CSCF based emergency number partition access;

fig. 3 shows a schematic diagram of a network architecture to which the present invention relates;

fig. 4 is a flowchart illustrating a user number partition access method according to an embodiment of the present invention;

fig. 5 is a flowchart of a subscriber number partition access method according to a preferred embodiment of the present invention;

fig. 6 is a block diagram illustrating a structure of a user number partition access apparatus according to an embodiment of the present invention;

fig. 7 is a diagram illustrating a user number partition access device according to an embodiment of the present invention;

fig. 8 is a flowchart of a subscriber number partition access method according to another embodiment of the present invention;

fig. 9 is a block diagram illustrating a subscriber number partition access apparatus according to another embodiment of the present invention.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

First, a network structure according to the present invention will be described with reference to the drawings. Fig. 3 shows a schematic diagram of a network structure to which the present invention relates.

The P-CSCF (Proxy Call Session Control Function, P-CSCF for short) is a unified entry point of the IMS visited network, and forwards the SIP request to the home S-CSCF, and the P-CSCF provides functions of registration and deregistration, authentication and authorization, signaling compression, media authorization, signaling routing, data management, emergency Call, QoS, charging, and the like.

The Serving Call Session Control Function (S-CSCF) is in the core Control position in the IMS core network, and is responsible for registration authentication and Session Control of User Equipment (UE), performs a basic Session routing Function for a calling end and a called end IMS user, performs service routing triggering to an SIP AS/OSA SCS when a condition is satisfied according to an IMS trigger rule signed by the user, and forwards an SIP request or a response to a Call routed to a PSTN or CS domain to an MGCF.

The I-CSCF (Interrogating Call Session Control Function, I-CSCF for short) is the boundary point of the IMS domain, and its main functions include assigning an S-CSCF. By querying the subscriber information in the HSS, the S-CSCF providing the service to the subscriber is found.

MGCF (media gateway control function) gateway is used for intercommunication between IMS domain and CS domain, and is responsible for completing intercommunication of control plane signaling flow (the interaction and intercommunication between PSTN/CS side ISUP/BICC protocol and CM-IMS side SIP protocol), and controlling IM-MGW to complete intercommunication and playback of user plane media flow. For the call routed to PSTN or CS domain, the format of the calling and called numbers needs to be regulated according to the certain routing principle corresponding to the number segment.

HSS device (Home Subscriber Server, HSS for short): the HSS is a core database storing user information in an IMS user home network, and is mainly used to store information such as an IMS user identifier, user authentication information, user service trigger information, and transparent service data.

In an embodiment of the present invention, based on the above network structure, a method for accessing a subscriber number partition is provided. Fig. 4 shows a flowchart of the subscriber number partition access method of the present embodiment, and as shown in fig. 4, the flowchart includes the following steps:

step S401, the S-CSCF receives the calling request of the calling party sent by the P-CSCF;

step S402, the S-CSCF triggers Centrex AS charging and triggers the I-CSCF to send a position information query request to the HSS under the condition that the called party number of the call request is a non-emergency number, wherein the position information query request is used for querying the position information signed by the calling party;

step S403, the S-CSCF receives the position information signed by the calling party returned by the I-CSCF;

step S404, the S-CSCF converts the called party number into the landing number of the call center corresponding to the position information signed by the calling party;

and step S405, the S-CSCF carries out number routing according to the landing number.

Through the above steps, the location information signed by the calling party is stored in the Home Subscriber Server (HSS), and then when the Serving Call Session Control Function (S-CSCF) receives the Call request of the calling party, the location information signed by the calling party can be obtained by querying the HSS for the location information signed by the calling party by triggering the querying Call Session Control Function (I-CSCF); the S-CSCF can realize the subarea access of the calling party by transforming the called party number according to the position information. By adopting the mode, compared with the prior art, the call flow is only required to be modified on the existing system architecture without adding an SBC, the problem of poor user experience or high cost caused by the fact that SBC equipment is required to be added to support the partition access in the prior art is solved, the user experience is improved, and the cost for realizing the partition access is reduced.

Optionally, after the S-CSCF receives the call request of the calling party sent by the P-CSCF, the S-CSCF does not trigger Centrex AS charging and triggers the I-CSCF to send a location information query request to the HSS when the called party number of the call request is an emergency number, the location information query request being used to query location information signed by the calling party; the S-CSCF receives the position information signed by the calling party returned by the I-CSCF; the S-CSCF converts the called party number into a landing number of the call center corresponding to the position information signed by the calling party; and the S-CSCF carries out number routing according to the landing number.

By the mode, whether the Centrex AS is triggered or not is determined according to whether the called party number is the emergency number or not, and the problem that charging is still carried out aiming at the emergency number in the prior art is solved. Meanwhile, the emergency number partition access realized by the method provides a partition access mode independent of the E-CSCF, and realizes the support of the IMS network to the partition access of the emergency number.

Optionally, the location information signed by the calling party at least includes: information of county, city and province signed by the calling party.

Optionally, before the S-CSCF converts the called party number into a landing number corresponding to a call center to which the location information signed by the calling party belongs, landing number data corresponding to the location information and the called party number is stored in the S-CSCF, and the landing number data is used to convert the called party number into the landing number.

Corresponding landing number data is made on the S-CSCF, and the making mode can be made according to the current network condition: if the land network requires the short number plus suffix realization, the data is similar to the emergency number data; and if the landing net has no requirement on the short number, making final landing number data of the short number.

Optionally, after the S-CSCF converts the called party number into a landing number corresponding to the location information signed by the calling party, the processing may be performed according to different types of landing numbers and corresponding routing procedures, respectively.

For example, in the case where the landline number is a real landline number (i.e., not in the form of a prefix/suffix-added short number), then the S-CSCF will query the ENUM/DNS with the landline number to complete the number routing. The routing procedure is illustrated as follows:

under the condition that the landing number is an IMS domain number, the query result returned by the ENUM/DNS is the SIP URI (the format is username @ domain: port) of the called party; the I-CSCF accessed by the called party can be inquired through the domain name information (domain) of the called party in the SIP URI; the I-CSCF sends the call to the S-CSCF of the called party by inquiring the HSS of the called party, and completes the landing of the number through the P-CSCF information and the landing number stored in the S-CSCF.

Under the condition that the floor number is 2/3G number or other network PSTN user number, the ENUM/DNS returns the information that the called party can not be inquired; thereafter, the S-CSCF anchors the call to a Media Gateway Control Function (MGCF); MGCF sends the call to mobile network or other networks through gateway office to realize landing of number based on the route analysis of landing number.

For another example, when the landing number is a short number added with a form of prefix/suffix corresponding to the location information signed by the calling party, the S-CSCF directly routes the call of the calling party to the MGCF; MGCF analyzes the route according to the short number, and sends the call to other network through gateway office to realize number conversion and landing of the number.

The following describes the user number partition access method described in conjunction with fig. 4 by a preferred embodiment.

In the preferred embodiment, by adding a partition character string of a user location identifier to a user attribute of an HSS for an IMS user, when the user calls a partition access service number, an S-CSCF sets a Shared Initial Filter Criteria Set (SiFC for short) parameter, so that an emergency call does not trigger a Centrex AS, and a non-emergency number triggers a Centrex AS, thereby implementing charging, and an S-CSCF device of the IMS system converts the service access number into a different number according to the partition character string of the user, thereby implementing the partition access. The preferred embodiment includes the following steps:

step 1, when a user opens an account, a Business Operation Support System (BOSS) adds position information (the position information is consistent with the position information of a common emergency number) to the user according to the position information condition of the user, and when the position area of the user changes, the user goes to a foreground to handle a position change process and modifies the position information of the user;

the location information of the user may include relevant information such as county, city, province, etc., and may be in the format of codes, pinyin spelling, abbreviations, etc., and the IMS domain is uniformly planned, for example: 031101; yuhua.sj.he.china mobile.com; yh.sj.he.ccmcc; sjyh. he. cmcc, etc.

Step 2, the user registers to the S-CSCF through the normal Register message;

step 3, the terminal saves the IP Multimedia Public Identity (IMPU for short) of the user and the access point information network element P-CSCF information of the IMS network; the network element P-CSCF reserves the code number IMPU of the user, the terminal information of the user and the S-CSCF network element information serving the user; the network element S-CSCF reserves the code number IMPU of the user, the access network element P-CSCF information of the user and the service data of the user;

step 4, the common IMS user calls a user code number using the partition access service (the code number can be a short number used or not used in the current network, or a code number of the common user or a code number resource used by other IMS networks);

step 5, configuring the user code number accessed by the subarea as an emergency prefix on the network element P-CSCF; the network element P-CSCF identifies the call of the user as an emergency call and triggers the user call to a network element S-CSCF serving the user;

the corresponding landing number data is required to be made on the network element S-CSCF, the making mode can be made according to the current network condition, and if the landing network requires a short number plus suffix mode, the data is similar to the emergency number data; and if the landing net has no requirement on the short number, making final landing number data of the short number.

And 6, modifying SIFC trigger content of the original common fixed network IMS user by the network element S-CSCF, so that calls (110, 119, 120 and 122) similar to emergency numbers do not trigger centrex As. While calls to other subscriber numbers require triggering to Centrex As.

Step 7, the Centrex As processes the user information normally, and completes the generation of the charging ticket according to the user signaling;

step 8, setting an S-CSCF emergency call type, and triggering a position information query request through a network element I-CSCF;

step 9, the network element I-CSCF returns the position information signed by the user by inquiring HSS;

step 10, the network element S-CSCF carries out corresponding number conversion according to the manufactured landing number data;

step 11, the network element S-CSCF analyzes the converted number, and if the number is a real landing number, queries the enum dns to complete number routing:

a) the landing number is an IMS domain number, the SIP URI of the user is returned, and the user access point information I-CSCF is inquired through the domain name information of the user; the I-CSCF sends the call to the S-CSCF served by the called number through inquiring the HSS, and completes the landing of the number through the P-CSCF information and the user number information stored in the S-CSCF;

b) the landing number is 2/3G number or other network PSTN user, ENUMDNS can not inquire user information, S-CSCF anchors call to MGCF; MGCF sends the routing analysis to mobile network or other networks through gateway according to the called number to realize the landing of the number;

and step 12, the network element S-CSCF analyzes the converted number, if the converted number is in a form of adding a prefix/suffix to the number, the converted number is directly routed to the MGCF, and the MGCF sends the converted number to other networks through the gateway according to the routing analysis of the called number to realize the final number conversion and landing.

Fig. 5 shows a flowchart of a subscriber number partition access method according to a preferred embodiment of the present invention, and referring to fig. 5, taking a subscriber call 95588 as an example, a subscriber number partition access call flow includes the following steps:

step 1, when an IMS user 80994251 opens an account, adding Yuhua.sj.he.china mobile.com information to HSS through BOSS;

step 2, an IMS user 80994251 registers to an IMS network, and an S-CSCF acquires the related service information signed by the user;

step 3, IMS subscriber 80994251 calls 95588, initiating a SIP request to the P-CSCF.

And 4, the P-CSCF identifies and marks the emergency call, inquires the S-CSCF to which the user belongs according to the information during the registration of the calling number, and sends the call request to the S-CSCF.

And step 5, the S-CSCF judges the non-emergency service according to the user service, triggers the Centrex service and completes the charging.

And 6, the S-CSCF sends the call request to the I-CSCF to inquire the position information of the user.

And 7, the I-CSCF queries a home HSS of the calling number, obtains a partition character string Yuhua.sj.he.china mobile.com, and returns the partition character string to the S-CSCF.

And 8, the S-CSCF converts the called number into 9558803 or a corresponding landing number according to the region identified by the partition character string, analyzes the called number as a PSTN call, and sends the SIP request to the MGCF.

Step 9, MGCF analyzes 9558803 number routing to local city gateway office or directly forwards the ground number to local city gateway office, and Circuit Switched (CS for short) domain performs subsequent connection.

The embodiment of the invention also provides a user number partition access device which is applied to the S-CSCF. Fig. 6 shows a block diagram of a structure of a subscriber number partition access apparatus according to this embodiment, and as shown in fig. 6, the apparatus includes:

a first receiving module 61, configured to receive a call request of a calling party sent by a P-CSCF;

a triggering module 62, configured to trigger Centrex AS charging and trigger I-CSCF to send a location information query request to HSS when a called party number of a call request is a non-emergency number, where the location information query request is used to query location information signed by a calling party;

a second receiving module 63, configured to receive location information, which is returned by the I-CSCF and signed by the calling party;

a conversion module 64, configured to convert the called party number into a floor number of a call center corresponding to the location information signed by the calling party;

and the routing module 65 is configured to perform number routing according to the landing number.

Optionally, the apparatus further comprises: another trigger module, is used in under the situation that the called party number of the call request is the urgent number, does not trigger Centrex AS to charge, and trigger I-CSCF to send the inquiry request of the position information to HSS, the inquiry request of the position information is used for inquiring the position information that the caller signs a contract; the third receiving module is used for receiving the position information signed by the calling party returned by the I-CSCF; another transformation module, is used for changing the called party number into the number of landing of the call center of the position information corresponding to caller's signing up; and the other routing module is used for carrying out number routing according to the landing number.

Optionally, the apparatus further comprises: and the storage module is used for storing the landing number data corresponding to the position information and the called party number.

Optionally, the routing module 65 performs number routing according to the floor number, including: and under the condition that the floor number is a multimedia subsystem number, a 2G number, a 3G number or a PSTN user number of other network public switched telephone networks, carrying out number routing by inquiring an ENUM (telephone number mapping work group) or a DNS (domain name system) according to the floor number.

Optionally, the routing module 65 performs number routing according to the floor number, including: and under the condition that the landing number is a short number in a prefix or suffix adding mode, carrying out number routing by a mode of routing the call of the calling party to a Media Gateway Control Function (MGCF).

In addition, the subscriber number partition access method described in the embodiment of the present invention in conjunction with fig. 4 may be implemented by a subscriber number partition access device. Fig. 7 is a schematic diagram illustrating a hardware structure of a user number partition access device according to an embodiment of the present invention.

The subscriber number partition access device may include a processor 71 and a memory 72 storing computer program instructions.

Specifically, the processor 71 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.

Memory 72 may include mass storage for data or instructions. By way of example, and not limitation, memory 72 may include a Hard Disk Drive (HDD), a floppy Disk Drive, flash memory, an optical Disk, a magneto-optical Disk, tape, or a Universal Serial Bus (USB) Drive or a combination of two or more of these. Memory 72 may include removable or non-removable (or fixed) media, where appropriate. The memory 72 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 72 is a non-volatile solid-state memory. In a particular embodiment, the memory 72 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.

The processor 71 reads and executes the computer program instructions stored in the memory 72 to implement any of the above-described subscriber number partition access methods.

In one example, the subscriber number zone access device may also include a communication interface 73 and a bus 70. As shown in fig. 7, the processor 71, the memory 72, and the communication interface 73 are connected via the bus 70 to complete mutual communication.

The communication interface 73 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.

Bus 70 includes hardware, software, or both to couple the components of the subscriber number partition access device to each other. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 70 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.

The user number partition access device can execute the user number partition access method in the embodiment of the invention based on the acquired data.

In addition, in combination with the user number partition access method in the foregoing embodiment, an embodiment of the present invention may provide a computer-readable storage medium to implement the method. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the above embodiments of the method for subscriber number partition access.

In an embodiment of the present invention, a user number partition access method is further provided, and fig. 8 shows another flowchart of the user number partition access method in this embodiment, as shown in fig. 8, the partition access method includes the following steps:

step S801, the HSS receives a position information query request sent by a calling party from the I-CSCF, wherein the position information query request is used for querying position information signed by the calling party;

step S802, the HSS inquires the position information signed by the calling party according to the position information inquiry request;

and step S803, the HSS sends the position information signed by the calling party to the S-CSCF of the calling party through the I-CSCF, so that the S-CSCF converts the number of the called party into a landing number of the call center corresponding to the position information signed by the calling party, and number routing is carried out according to the landing number.

The invention also provides a user number partition access device which is applied to the HSS. Fig. 9 is a block diagram illustrating a structure of a subscriber number partition access apparatus according to this embodiment, and as shown in fig. 9, the apparatus includes:

a third receiving module 91, configured to receive, from the query call session control function I-CSCF, a location information query request sent by a calling party, where the location information query request is used to query location information signed by the calling party;

the query module 92 is configured to query the location information signed by the calling party according to the location information query request;

and a sending module 93, configured to send the location information signed by the calling party to a serving call session control function S-CSCF of the calling party through the I-CSCF, so that the S-CSCF converts the number of the called party into a floor number of the call center corresponding to the location information signed by the calling party, and performs number routing according to the floor number.

In addition, the subscriber number partition access method described in the embodiment of the present invention in conjunction with fig. 8 may be implemented by a subscriber number partition access device. The hardware structure of the user number partition access device has a similar structure to that of the user number partition access device shown in fig. 7, and is not described herein again.

In addition, in combination with the user number partition access method in the foregoing embodiment, an embodiment of the present invention may provide a computer-readable storage medium to implement the method. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement the subscriber number partition access method shown in fig. 8 in the above embodiment.

In summary, in the embodiments, preferred embodiments, or implementation manners of the present invention described above, the HSS adds a parameter for identifying a user location, completes triggering Centrex by a non-emergency number by modifying a SiFC or iFC triggering manner, does not trigger an emergency number, processes a user location parameter by an S-CSCF network element, and transforms numbers, thereby implementing that the same number is simultaneously allocated to different areas for use. By the embodiment, the preferred embodiment or the implementation mode, the IMS user calls the short number to realize the partition access under the condition of not influencing the user perception and not increasing equipment, and the subsequent new network access user can also realize the partition access only by directly inserting the partition character string into the BOSS system during account opening without additionally making data. In addition, the embodiment of the invention also solves the problem of user call charging.

It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.

The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.

It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.

As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.

Claims

1. A user number partition access method is characterized by comprising the following steps:

a service call session control function S-CSCF receives a call request of a calling party sent by a proxy call session control function P-CSCF;

the S-CSCF triggers a virtual subscriber switch authentication server Centrex AS to charge and triggers an inquiry call session control function I-CSCF to send a position information inquiry request to a home subscriber server HSS under the condition that the called party number of the call request is a non-emergency number, wherein the position information inquiry request is used for inquiring the position information signed by the calling party;

and the S-CSCF carries out number routing according to the landing number.

2. The method of claim 1, wherein after the S-CSCF receives the call request of the calling party sent by the P-CSCF, the method further comprises:

the S-CSCF does not trigger Centrex AS charging and triggers I-CSCF to send a position information query request to HSS under the condition that the called party number of the call request is an emergency number, wherein the position information query request is used for querying the position information signed by the calling party;

and the S-CSCF carries out number routing according to the landing number.

3. The method according to claim 1 or 2, wherein the location information of the calling party subscription at least comprises: and the information of county, city and province signed by the calling party.

4. The method according to claim 1 or 2, wherein before the S-CSCF converts the called party number to a landing number for a call center corresponding to the location information to which the calling party has signed up, the method further comprises:

the S-CSCF stores landing number data for converting the called party number into the landing number.

5. The method according to claim 1 or 2, wherein in the case that the landing number is a multimedia subsystem number or a 2G number or a 3G number or a PSTN subscriber number of other network public switched telephone network, the S-CSCF performing number routing according to the landing number comprises:

and the S-CSCF carries out number routing by inquiring the telephone number mapping working group ENUM or the domain name system DNS according to the floor number.

6. The method according to claim 1 or 2, wherein, in the case that the landing number is a short number in the form of a prefix or a suffix, the S-CSCF routing the number according to the landing number comprises:

and the S-CSCF performs number routing by routing the call of the calling party to a Media Gateway Control Function (MGCF).

7. A user number partition access device, applied to a serving call session control function S-CSCF, the device comprising:

the first receiving module is used for receiving a calling request of a calling party sent by a proxy call session control function P-CSCF;

a triggering module, configured to trigger a virtual subscriber switch authentication server Centrex AS charging and trigger an inquiry call session control function I-CSCF to send a location information inquiry request to a home subscriber server HSS when a called party number of the call request is a non-emergency number, where the location information inquiry request is used to inquire location information signed by the calling party;

8. A subscriber number partition access device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-6.

9. A computer-readable storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-6.

10. A user number partition access method is characterized by comprising the following steps:

a Home Subscriber Server (HSS) receives a position information query request sent by a calling party from a query call session control function (I-CSCF), wherein the position information query request is used for querying position information signed by the calling party;

and the HSS sends the position information signed by the calling party to a service call session control function (S-CSCF) of the calling party through the I-CSCF, so that the S-CSCF converts the number of the called party into a landing number of a call center corresponding to the position information signed by the calling party, and number routing is carried out according to the landing number.

11. A user number partition access device is applied to a Home Subscriber Server (HSS), and is characterized by comprising:

a third receiving module, configured to receive, from an interrogating call session control function I-CSCF, a location information interrogating request sent by a calling party, where the location information interrogating request is used to interrogate location information signed by the calling party;

and the sending module is used for sending the position information signed by the calling party to a service call session control function (S-CSCF) of the calling party through the I-CSCF so that the S-CSCF converts the number of the called party into a floor number of a call center corresponding to the position information signed by the calling party, and number routing is carried out according to the floor number.

12. A subscriber number partition access device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of claim 10.

13. A computer-readable storage medium having computer program instructions stored thereon which, when executed by a processor, implement the method as recited in claim 10.