CN101047579A - Roaming method of fixed customer - Google Patents
Roaming method of fixed customer Download PDFInfo
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- CN101047579A CN101047579A CN 200610066418 CN200610066418A CN101047579A CN 101047579 A CN101047579 A CN 101047579A CN 200610066418 CN200610066418 CN 200610066418 CN 200610066418 A CN200610066418 A CN 200610066418A CN 101047579 A CN101047579 A CN 101047579A
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Abstract
A roaming method of fixed user includes logging client end on attribution network and switching in client end at access network; binding call state control function information of said access network with client end and carrying user identification of client end and attribution network domain name as well as call state control function name in said access network call state control function information bound with client end.
Description
Technical field
The present invention relates to a kind of loaming method of fixed-line subscriber, the loaming method of fixed-line subscriber in especially a kind of IP-based multi-media subsystem network.
Background technology
By 3G (Third Generation) Moblie standard collaboration items tissue (3rd Generation Partnership Project; IP-based IP multimedia subsystem, IMS (the IP Multimedia Subsystem that 3GPP) in Release5 (R5) version, proposes; IMS) merge (Fixed-Mobile Convergence for fixed mobile network; FMC) lay a good foundation.The IMS framework provides an IP-based business network of carrier-class for telecom operators, it has reliability, manageability, manageability and the profitable property of conventional telecommunications net, has simultaneously the flexibility of internet again and to the extensive support of multimedia service ability.Network integration framework based on IMS mainly is divided into interconnection layer, session control layer and application and 3 aspects of data Layer of inserting.
■ inserts interconnection layer and comprises each Terminal Type (as portable terminal, PDA, PC, set-top box etc.) and IP Access Network.The IP Access Network is different with different access technologies, mainly contains to move to insert, fixingly insert, insert based on the IP of WiFi.Wherein move and insert definition, by Serving GPRS Support Node (Serving GPRS Support Node by 3GPP R5/R6; SGSN) and Gateway GPRS Support Node (Gateway GPRS Support Node; GGSN) insert the IMS network; Fixedly access is then by Digital Subscriber Line Access Multiplexer (Digital Subscriber Line Access Multiplexer; DSLAM) and BAS Broadband Access Server (Broadband Remote Access Server; BRAS) insert the IMS network.
The Core Feature of ■ session control layer is CSCF (Call Session Control Function; CSCF), it is responsible for handling all signalings relevant with foundation and terminated call, and basic SIP information exchange.CSCF comprises proxy CSCF (Proxy-CSCF; P-CSCF), inquiry CSCF (Interrogating-CSCF; I-CSCF) and serving CSCF (Serving-CSCF; S-CSCF).
■ uses and data Layer provides service logic for the end user.The IMS framework can be supported different phones or non-telco application server neatly with the SIP signaling, comprises realizing traditional Plain Ordinary Telephone Service, as Call Forwarding, Call Waiting, meeting etc.; IMS is by application server (Application Server simultaneously; AS) can provide non-traditional telecommunication service, as instant message (Instance Message based on SIP; IM), PTT, online demonstration (Presence) etc.
In addition, all a professional database, i.e. home subscriber server (Home Subscriber Server of sharing in the IMS framework; HSS), it is by (the Home Location Register of the attaching position register among the present 2G; HLR) upgrading obtains.In present IMS system, HSS and HLR also can and deposit.
In above-mentioned network based on IMS, portable fixedly terminal equipment, for example networking telephone (IPPhone), PC (PersonalComputer; PC) etc. can be carried to another place from a place easily.These fixed terminal equipments are registered the back and just can be used in home network.Because portability, above-mentioned chartered fixed terminal equipment can be initiated to use in an accesses network, are linked in the above-mentioned network.
At present when a fixed terminal equipment is linked in the above-mentioned IMS system, have two kinds of transmit paths, a kind of path is the Broadband Remote Access Server access of client from accesses network, directly is linked in the home network by user plane.Another path is the Broadband Remote Access Server access of client from accesses network, passes through the CSCF of accesses network again, is linked into the CSCF of home network by control plane.
Because transmission network IP is non-trust domain, when the above-mentioned first kind of mode of customer end adopted (when roaming) when accesses network inserts, may causing in the system of operator still, display client inserts from home network.Thereby concerning operator, thereby can not always can learn that this client is in roaming state extra charge is carried out in its roaming, thus the loss of interests can be caused to operator.
Fig. 1 is the cut-in method schematic diagram based on the fixed-line subscriber of soft switch of available technology adopting.Signaling process among Fig. 1 is all controlled by the CSCF of home network, and an accesses network bearer service data and carrier signaling information not, the billing function when therefore this cut-in method can't realize also that the user roams.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of loaming method of fixed-line subscriber, make that fixed-line subscriber is registered in its home network after, no matter roam into any accesses network, operator can both learn that this client is in roaming state.For achieving the above object, technical scheme of the present invention specifically is achieved in that a kind of loaming method of fixed-line subscriber, be used for IP-based multi-media subsystem network, above-mentioned network comprises at least one client, at least one home network, at least one accesses network, above-mentioned home network comprises at least one CSCF, at least one home subscriber server, above-mentioned accesses network comprises at least one CSCF, above-mentioned client is registered in above-mentioned home network and is inserted in above-mentioned accesses network, it is characterized in that: the CSCF information of the above-mentioned accesses network of binding in above-mentioned client.Wherein, the CSCF information of the above-mentioned accesses network of binding in the above-mentioned client comprises the CSCF title of the user ID of above-mentioned client, above-mentioned home network domain name and above-mentioned accesses network.As a rule, the user ID of above-mentioned client is the unified resource identifier of a dialogue-based initiation protocol.
And the agent call State Control function of above-mentioned accesses network is the unified identifier of a dialogue-based initiation protocol normally.With regard to CSCF, the CSCF of above-mentioned accesses network is the agent call State Control function of accesses network, and the CSCF of above-mentioned home network comprises at least one agent call State Control function, at least one enquiry call State Control function, at least one service state controlled function.
In the embodiment of the invention, the agent call State Control function of home network is identical with the title of the agent call State Control function of accesses network.
The CSCF back of above-mentioned accesses network, especially agent call State Control function back are connected with a domain name resolution server.
Above-mentioned client as the terminal use is linked into above-mentioned accesses network by a BAS Broadband Access Server in fixed network, be connected by a network address conversion gateway usually between above-mentioned BAS Broadband Access Server and the above-mentioned accesses network.
As seen, the loaming method of the fixed-line subscriber based on ims architecture provided by the present invention has following advantage and characteristics:
(1) the present invention is by the CSCF information in client binding accesses network, thereby specify the access path of fixed network users in the IMS system, thereby make no matter client roams into any accesses network, operator can both learn that this client is in roaming state, thereby can carry out roam charge to this fixed-line subscriber.
(2) the present invention only needs the CSCF information in client binding accesses network, need not hardware of the prior art is done any change, and therefore required cost is low.
(3) just specified among the 3GPP by the access path in the move mode access IMS network, and not to insert the access path in the IMS system by the fixed network mode, the inventive method inserts the IMS system by specifying the fixed network mode, and the access path that 3GPP proposes has been done useful replenishing.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the loaming method schematic diagram based on the fixed-line subscriber of soft switch of available technology adopting.
Fig. 2 is the loaming method schematic diagram based on the fixed-line subscriber of ims architecture that the present invention adopts.
Embodiment
Fig. 2 is the loaming method schematic diagram based on the fixed-line subscriber of ims architecture that the present invention adopts.Client among Fig. 2 is a PC as fixed terminal, and the right is Pekinese's GPRS network, because this PC registers in Pekinese's GPRS network, so Pekinese's GPRS network is home network, shown in the right side of Fig. 2.Comprise a CSCF CSCF, a home subscriber server HSS in the GPRS network of Beijing, Gateway GPRS Support Node GGSN, a Serving GPRS Support Node SGSN.CSCF CSCF comprises an agent call State Control function P-CSCF, an enquiry call State Control function I-CSCF and a service state controlled function S-CSCF.
If the user carries this PC and arrives Shanghai, and insert GPRS network in Shanghai by DSL or Ethernet mode, then the GPRS network in Shanghai is an accesses network.The left side of Fig. 2 is the GPRS network in Shanghai.Comprise a CSCF CSCF in the GPRS network of Shanghai, equally, the CSCF CSCF of this accesses network also comprises an agent call State Control function P-CSCF, an enquiry call State Control function I-CSCF and a service state controlled function S-CSCF.In addition, this accesses network can also comprise a Serving GPRS Support Node SGSN.
According to the present invention, in as the PC of subscription client, following parameter is bound, promptly the CSCF CSCF title of the user ID of this subscription client, home network domain name and accesses network is often referred to agent call State Control function P-CSCF title.
Unified resource identifier (the Uniform ResourceIndicator of the normally dialogue-based initiation protocol SIP of the user ID of this subscription client; URL); Home network domain name can be Pekinese's enquiry call State Control function I-CSCF title; And agent call State Control function P-CSCF title is set to a unified P-CSCF, promptly for the home network Pekinese and the agent call State Control function P-CSCF in agent call State Control function P-CSCF and accesses network Shanghai, its P-CSCF title is identical.The agent call State Control function P-CSCF of above-mentioned accesses network is the unified identifier of a dialogue-based initiation protocol SIP normally.
The agent call State Control function P-CSCF back in accesses network Shanghai is connected with a domain name resolution server DNS, can parse this user's current location by this DNS, thereby make operator learn this user's concrete on-position.
When inserting the GPRS network in Shanghai, from network, download an IMS software earlier as the PC of subscription client in this PC, begin an IP registration process then based on IMS.
Since in above-mentioned PC with the GPRS network in Shanghai in P-CSCF bind, the IP registration message that PC sends at first passes through above-mentioned Broadband Remote Access Server BRAS, again by a network address translation (Network AddressTranslation; NAT) gateway (this gateway is generally the ALG ALG of session initiation protocol SIP herein) arrives the P-CSCF in the GPRS network of Shanghai.
This P-CSCF accepts this registration message, according to unified resource identifier (the Uniform Resource Indicator of PC; URI) go for its home network Pekinese enquiry call State Control function I-CSCF, for specifying a service call State Control function S-CSCF of home network Pekinese, this user carries out the SIP registration by home network Pekinese enquiry call State Control function I-CSCF, after the request of the service call State Control function S-CSCF of home network Pekinese access registration, by searching home subscriber server HSS register requirement is come into force, finish registration process.
After above-mentioned registration process is finished, just can issue the agent call State Control function P-CSCF in above-mentioned accesses network Shanghai earlier by the sip message of sending in the subscription client PC, directly be transmitted to the service call State Control function S-CSCF of above-mentioned home network Pekinese by this P-CSCF then, the above-mentioned S-CSCF in this home network Pekinese carries out session control to the client PC, handles or transmits.
As can be seen from the above-described embodiment, the present invention is by the CSCF information in client binding accesses network, thereby specify the access path of fixed network users in the IMS system, thereby make no matter client roams into any accesses network, operator can both learn that this client is in roaming state, thereby can carry out roam charge to this fixed-line subscriber.And the inventive method need not hardware of the prior art is done any change, and therefore required cost is low, is easy to realize in client.
Claims (11)
1. the loaming method of a fixed-line subscriber, be used for IP-based multi-media subsystem network, above-mentioned network comprises at least one client, at least one home network, at least one accesses network, above-mentioned home network comprises at least one CSCF, at least one home subscriber server, above-mentioned accesses network comprises at least one CSCF, above-mentioned client is registered in above-mentioned home network and is inserted in above-mentioned accesses network, it is characterized in that: the CSCF information of the above-mentioned accesses network of binding in above-mentioned client.
2. the loaming method of fixed-line subscriber as claimed in claim 1, it is characterized in that: the CSCF information of the above-mentioned accesses network of binding in the above-mentioned client comprises the CSCF title of the user ID of above-mentioned client, above-mentioned home network domain name and above-mentioned accesses network.
3. the loaming method of fixed-line subscriber as claimed in claim 1 or 2, it is characterized in that: the CSCF of above-mentioned accesses network is the agent call State Control function of accesses network.
4. the loaming method of fixed-line subscriber as claimed in claim 2, it is characterized in that: the user ID of above-mentioned client is the unified resource identifier of a dialogue-based initiation protocol.
5. the loaming method of fixed-line subscriber as claimed in claim 3, it is characterized in that: the agent call State Control function of above-mentioned accesses network is the unified identifier of a dialogue-based initiation protocol.
6. the loaming method of fixed-line subscriber as claimed in claim 1 or 2, it is characterized in that: the CSCF of above-mentioned accesses network links to each other with a domain name resolution server.
7. the loaming method of fixed-line subscriber as claimed in claim 3, it is characterized in that: the agent call State Control function of above-mentioned accesses network links to each other with a domain name resolution server.
8. the loaming method of fixed-line subscriber as claimed in claim 1 or 2, it is characterized in that: above-mentioned client is linked into above-mentioned accesses network by a BAS Broadband Access Server.
9. the loaming method of fixed-line subscriber as claimed in claim 8 is characterized in that: be connected by a network address conversion gateway between above-mentioned BAS Broadband Access Server and the above-mentioned accesses network.
10. the loaming method of fixed-line subscriber as claimed in claim 1 or 2, it is characterized in that: the CSCF of above-mentioned home network comprises an agent call State Control function, an enquiry call State Control function and a service state controlled function.
11. the loaming method of fixed-line subscriber as claimed in claim 10 is characterized in that: the agent call State Control function of above-mentioned home network is identical with the title of the agent call State Control function of above-mentioned accesses network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200610066418 CN101047579A (en) | 2006-03-30 | 2006-03-30 | Roaming method of fixed customer |
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| CN 200610066418 CN101047579A (en) | 2006-03-30 | 2006-03-30 | Roaming method of fixed customer |
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| CN101047579A true CN101047579A (en) | 2007-10-03 |
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| CN 200610066418 Pending CN101047579A (en) | 2006-03-30 | 2006-03-30 | Roaming method of fixed customer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149371A1 (en) * | 2014-04-04 | 2015-10-08 | 华为技术有限公司 | Charging method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149371A1 (en) * | 2014-04-04 | 2015-10-08 | 华为技术有限公司 | Charging method and device |
| CN105284141A (en) * | 2014-04-04 | 2016-01-27 | 华为技术有限公司 | Charging method and device |
| CN105284141B (en) * | 2014-04-04 | 2019-06-21 | 华为技术有限公司 | A kind of method and device of charging |
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Open date: 20071003 |