CN1980250B - Network protocol multi-media sub-system and method for obtaining access-in point information - Google Patents
Network protocol multi-media sub-system and method for obtaining access-in point information Download PDFInfo
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- CN1980250B CN1980250B CN200510124368XA CN200510124368A CN1980250B CN 1980250 B CN1980250 B CN 1980250B CN 200510124368X A CN200510124368X A CN 200510124368XA CN 200510124368 A CN200510124368 A CN 200510124368A CN 1980250 B CN1980250 B CN 1980250B
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Abstract
The Internet protocol multimedia subsystem (IMS) includes user information management module, call/ conversation control module (CCM), and access network. The access network is connected to IP address allocation module. Information verification module (IVM) of user access point is connected between CCM and the access network. The invention also discloses method for obtain information of the access point by IMS. The method includes steps: after IMS initiates request from user terminal for building bottom layer connection, IVM of user access point carries out verification to determine whether IP address in initial information of conversation reported from user terminal is accorded with rule setup in advance for allocating IP addresses; if yes, providing network service for the user terminal; otherwise, not to provide network service, recording this event, and ending conversation. The technical scheme ensures that information at terminal access point IMS obtained is true.
Description
Technical field
The present invention relates to a kind of network protocol multi-media sub-system (Internet Protocol MultimediaSubsystem; Be called for short IMS) and obtain the method for access-in point information, relate in particular to a kind of method that can obtain the IMS system of terminal accessing-point real information and obtain the access point real information.
Background technology
Along with the arrival gradually in 3G epoch, the user has had higher expectation to mobile communication.The user not only requires stable voice communication, but also requirement can be carried out multiple modes such as video, data and communicates by letter.To these demands, in conjunction with existing technical conditions, belong to the third generation partner program (3GPP) of leading 3G technology standard mechanism, formulated the IMS technical standard.It will be controlled and application is separated, and be independent of the access way and the terminal equipment type of network; With the innovation of promoting business is core, makes operator can dispose various forms of multimedia services quickly and efficiently.
The IMS system comprises subscriber information management module, call/session control function module and Access Network at present, and is as shown in Figure 1.The subscriber information management module is generally ownership place subscribed services device (HomeSubscriber Server is called for short HSS), is responsible for the storage user related information, comprises the current information that the call/session control function module of service is provided for the user; Call/session control function module (Call Session Control Function; Abbreviation CSCF) is generally agent call/conversation control function (Proxy-Call Session Control Function; Abbreviation P-CSCF), consultation call conversation control function (Interrogating-Call Session Control Function; Abbreviation I-CSCF), service call conversation control function (Serving-Call Session ControlFunction; Be called for short S-CSCF), be responsible for the access-in point information of storage user terminal, the call/session controlled function be provided and charge information be provided for call/session for the user.
User terminal (User Equipment is called for short UE) inserts connective Access Network through access point, and connective Access Network is connected with the CSCF module of IMS system.When the user terminal in this Access Network of access network type support can obtain the coded message of access point; Requirement by network operator's regulation; Upload in the information of call/session control function module through connective Access Network at the terminal; Coded message with access point; Be that the call/session control function module of IMS network is obtained the access-in point information at current place, terminal through the P-Access-Netwrok-Info field in session initiation protocol (Session Initiation Protocol the is called for short SIP) information of terminal to report.This access-in point information is meant the access network type and the access point coded message thereof at current place, terminal, reaches the wherein CELL-ID information of base station like GPRS or 3G PS territory network, and WLAN reaches the wherein SSID information of AP.
But the problem that existing system and method exist is: the IMS system can not guarantee the authenticity of the access-in point information at the terminal that the call/session control function module is obtained.That is to say, be a false information if the access-in point information in the SIP information P-Access-Netwrok-Info field is filled out at the terminal, and present IMS network does not have a kind of verification scheme and detects this false information.Like this,, will bring following problem in case the actual residing position of user terminal access-in point information that network obtains and user terminal is not inconsistent:
1, network can't be known user's actual position, can't utilize positional information to carry out a series of service application;
2, (like office) post and telecommunication tariff has under the preferential situation in some zone, and access-in point information might be had a mind to distort in the terminal, and the rate that acquisition should not be enjoyed are preferential;
3, the terminal mistake is filled out access-in point information, causes unnecessary rate loss or network to can not find the terminal and can't provide professional for the user.
Summary of the invention
The purpose of this invention is to provide a kind of network protocol multi-media sub-system and obtain the method for access-in point information; In order to guarantee the authenticity of the access-in point information of terminal that network protocol multi-media sub-system obtains; Access-in point information can't be had a mind to distort in the terminal; Even and terminal mistake fills out access-in point information, it is that the user provides service that network also can find the terminal.
For realizing above-mentioned purpose; The invention provides a kind of network protocol multi-media sub-system; Comprise subscriber information management module, call/session control module and Access Network; And said Access Network is connected with the IP address assignment module, and said IP address assignment module is used for to said terminal distribution IP address; Be connected with user access point information checking module between said call/session control module and the said Access Network; Said user access point information checking module secondary IP address distribution module is obtained the IP address assignment rule, according to access network type and IP address assignment rule verification is carried out in the IP address of user terminal;
Said network protocol multi-media sub-system is filled into access-in point information in the charge information that provides for call/session, then according to the access-in point information in the said charge information do zone registration or with the zone registration of time correlation.
The present invention also provides a kind of method of obtaining access-in point information, may further comprise the steps:
Step 11: network protocol multi-media sub-system is user terminal distributing IP address by pre-set IP address assignment rule after user terminal initiates to set up the bottom connection request; Said IP address assignment rule defines according to access network type and network topology structure;
Step 12: user access point information checking module secondary IP address distribution module is obtained the IP address assignment rule; Judge whether the IP address in the session initiation message of said user terminal to send up meets said predefined IP address assignment rule; If then provide services on the Internet for said user terminal; If not, then do not provide services on the Internet, and present event is carried out record, end session;
Wherein, Also comprise after the said step 2: network protocol multi-media sub-system is filled into access-in point information in the charge information that provides for call/session, then according to the access-in point information in the said charge information do zone registration or with the zone registration of time correlation.
In the such scheme, also further comprise in the said step 2 to said user terminal transmission including the message that refusal provides service content.
Pass through technique scheme; The access-in point information that has guaranteed IP Multimedia System acquisition current place, terminal is real; Access-in point information can't be had a mind to distort in the terminal, even and the terminal mistake fill out access-in point information, it is that the user provides service that network also can find the terminal.
Through accompanying drawing and embodiment, technical scheme of the present invention is done further detailed description below.
Description of drawings
Fig. 1 is the network structure of existing network protocol IP multimedia subsystem, IMS.
Fig. 2 is the network structure of network protocol multi-media sub-system of the present invention.
Fig. 3 obtains the flow chart of the method embodiment of access-in point information for the present invention.
Embodiment
The present invention obtains global system for mobile communications (the Universal Mobile Telecommunication System in the access network type of coded message of access point to support user terminal in the Access Network; Be called for short UMTS) for implementing environment, other network in can also this access network type is as implementing environment.
Fig. 2 is the network structure of IP Multimedia System of the present invention; Comprise subscriber information management module, call/session control module and Access Network; And; Said Access Network is connected with the IP address assignment module, is used for to user terminal distributing IP address, and the rule of promptly being responsible for setting according to the network operator is given terminal distribution IP address; Be connected with user access point information checking module between said call/session control function module and the said Access Network; Said user access point information module carries out verification to user terminal through the Access Network submitted IP address according to access network type and IP address assignment rule, thereby for obtaining the real information of access point effective platform is provided.
Fig. 3 specifically may further comprise the steps for network protocol multi-media sub-system of the present invention obtains the flow chart of the method for access-in point information:
Step 101: it is after PDP Context is set up request that network protocol multi-media sub-system initiates to set up the bottom connection request at user terminal; The IP address assignment rule according to access network type and network topology structure definition according to pre-set is user terminal distributing IP address; This allocation rule by the IP address assignment module of network protocol multi-media sub-system after user terminal inserts Access Network; Press the definition of access network type and network topology structure, and with this allocation rule notice user access point information checking module;
Step 102: user access point information checking module waits for that said user terminal reports the IP address through the access-in point information in the conversation initial information P-Access-Netwrok-Info field; After obtaining said session initiation message submitted IP address; Whether the judges IP address of terminal meets said predefined IP address assignment rule; If then provide services on the Internet for said user terminal; If not, then include the message that refusal provides service content to said user terminal transmission, refusal is provided services on the Internet, and present event is carried out record, end session then; Perhaps present event is write down directly end session of back.
The foregoing description is through carrying out verification to the user terminal access-in point information; Guaranteed that network protocol multi-media sub-system can obtain real access-in point information; Access-in point information can't be had a mind to distort in the terminal; Even and terminal mistake fills out access-in point information, it is that the user provides service that network also can find the terminal.
In addition; After having obtained access-in point information; Can also be filled into access-in point information in the charge information that provides for call/session, then the accounting system of network protocol multi-media sub-system according to the access-in point information in the said charge information do zone registration or with the zone registration of time correlation.
After having obtained access-in point information, the call/session control module can be according to the access-in point information at these terminals and pre-configured routing rule, and the route of carrying out continues.Specifically comprise the application of following three aspects.
When user's emergency call; Execution in step has: after network protocol multi-media sub-system is received the subscriber terminal emergently call request; The inquiring user access-in point information inserts nearest urgent call platform nearby with said subscriber terminal emergently calling, improves the response time of urgent call platform.
The user can preestablish the call/session calling preferential replay strategy of oneself through customer service system.For example; If it is own in certain place; Then the call/session preferential replay to certain terminal (be generally non-handheld terminal or do not have the terminal F of automatic roaming ability) of oneself, network expands the network operator and then sets the position in place that the user requires and the access-in point information corresponding relation of several access network types.When going to this user calling/session; The access point current, call/session control function module according to customer mobile terminal earlier the inspection user whether on the access point of statement place correspondence, if; The strategy of then setting by the user; To user's terminal F, under the situation about can't connect at the terminal, the call/session control function module is routed to call/session on the customer mobile terminal again the call/session preferential replay.Comprise that specifically step has: after network protocol multi-media sub-system is received another user calling request of a customer call; The multiple terminals route connection rules of inquiry called subscriber definition; And combine the user terminal access-in point information, continue according to the routing rule that defines.
When two users conversed, system sought nearest terminal automatically according to the access-in point information of calling and called and continues, and saves route time and cost.Specifically comprise step: after network protocol multi-media sub-system is received another user calling request of a customer call; A plurality of access-in point informations of the access-in point information at inquiring calling terminal and terminal called; Then; Two users' of Call Control Block contrast access-in point information routes to terminal called according to nearest access point.
It should be noted last that; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and the scope of technical scheme of the present invention.
Claims (6)
1. a network protocol multi-media sub-system comprises subscriber information management module, call/session control module and Access Network; It is characterized in that: said Access Network is connected with the IP address assignment module, and said IP address assignment module is used for to user terminal distributing IP address; Be connected with user access point information checking module between said call/session control module and the said Access Network; Said user access point information checking module secondary IP address distribution module is obtained the IP address assignment rule, according to access network type and IP address assignment rule verification is carried out in the IP address of said user terminal;
Said network protocol multi-media sub-system also is used for being filled into the charge information that provides for call/session to access-in point information, then according to the access-in point information in the said charge information do zone registration or with the zone registration of time correlation.
2. method of obtaining access-in point information is characterized in that comprising:
Step 1. network protocol multi-media sub-system is user terminal distributing IP address by pre-set IP address assignment rule after user terminal initiates to set up the bottom connection requests; Said IP address assignment rule defines according to access network type and network topology structure;
Step 2. user access point information checking module secondary IP address distribution module is obtained the IP address assignment rule; Judge whether the IP address in the session initiation message of said user terminal to send up meets said predefined IP address assignment rule; If then provide services on the Internet for said user terminal; If not, then do not provide services on the Internet, and present event is carried out record, end session;
Wherein, Also comprise after the said step 2: network protocol multi-media sub-system is filled into access-in point information in the charge information that provides for call/session, then according to the access-in point information in the said charge information do zone registration or with the zone registration of time correlation.
3. method according to claim 2 is characterized in that also further comprising in the said step 2 to said user terminal transmission including the message that refusal provides service content.
4. according to claim 2 or 3 described methods; It is characterized in that also comprising after the said step 2: after network protocol multi-media sub-system is received the subscriber terminal emergently call request; The inquiring user access-in point information of terminal is linked into nearest urgent call platform with said subscriber terminal emergently calling.
5. according to claim 2 or 3 described methods; It is characterized in that also comprising after the said step 2: after network protocol multi-media sub-system is received call request; Inquire about the multiple terminals route connection rules of terminal called definition, and continue according to the user terminal access-in point information.
6. according to claim 2 or 3 described methods; It is characterized in that also comprising after the said step 2: after network protocol multi-media sub-system is received call request; A plurality of access-in point informations of the access-in point information at inquiring calling terminal and terminal called; And further contrast the access-in point information of calling terminal and terminal called, the calling of calling terminal is routed to nearest terminal called access point.
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| CN200510124368XA CN1980250B (en) | 2005-11-29 | 2005-11-29 | Network protocol multi-media sub-system and method for obtaining access-in point information |
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| CN200510124368XA CN1980250B (en) | 2005-11-29 | 2005-11-29 | Network protocol multi-media sub-system and method for obtaining access-in point information |
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| CN1980250B true CN1980250B (en) | 2012-02-29 |
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| CN102547611B (en) * | 2011-12-09 | 2014-08-06 | 深圳市华为技术软件有限公司 | Method and device for sending multimedia message and gateway server |
| CN106453214A (en) * | 2015-08-12 | 2017-02-22 | 中国电信股份有限公司 | Method, device and system for testing legality of user |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6169742B1 (en) * | 1997-02-14 | 2001-01-02 | Advanced Micro Devices, Inc. | Multiport data network switch having direct media access control link to external management |
| WO2004073322A2 (en) * | 2003-02-05 | 2004-08-26 | Motorola Inc. | Network assisted cell reselection in wireless communications systems and methods |
| CN1650659A (en) * | 2002-08-16 | 2005-08-03 | 西门子公司 | Method for identifying communications terminal device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6169742B1 (en) * | 1997-02-14 | 2001-01-02 | Advanced Micro Devices, Inc. | Multiport data network switch having direct media access control link to external management |
| CN1650659A (en) * | 2002-08-16 | 2005-08-03 | 西门子公司 | Method for identifying communications terminal device |
| WO2004073322A2 (en) * | 2003-02-05 | 2004-08-26 | Motorola Inc. | Network assisted cell reselection in wireless communications systems and methods |
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