CN101345637A - Method and apparatus for discovering policy charging decision function/policy distribution function entity - Google Patents

Method and apparatus for discovering policy charging decision function/policy distribution function entity Download PDF

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Publication number
CN101345637A
CN101345637A CNA2008102108477A CN200810210847A CN101345637A CN 101345637 A CN101345637 A CN 101345637A CN A2008102108477 A CNA2008102108477 A CN A2008102108477A CN 200810210847 A CN200810210847 A CN 200810210847A CN 101345637 A CN101345637 A CN 101345637A
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described
indication message
conversation establishing
network
user
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CNA2008102108477A
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CN101345637B (en
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成超文
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中兴通讯股份有限公司
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Abstract

The invention provides a discovering method of a strategy charging decision making function/strategy dispensing functional entity and a device, applied in a communicating field, comprising: receiving conversation building indication information by home network, wherein the conversation building indication information is carried with destined identification for describing the conversation building indication information; responding to the conversation building indication information and obtaining the destined identification by the home network, and transmitting the conversation building indication information to the corresponding functional entity according to the destined identification. By means of the technical scheme of the invention, the strategy charging implement functional entity discovers the strategy charging decision making functional entity/strategy dispensing functional entity.

Description

The discover method of policy charging decision function/policy distribution function entity and device

Technical field

The present invention relates to the communications field, and especially, relate to a kind of discover method and device of policy charging decision function/policy distribution function entity.

Background technology

Micro-wave access global inter communication (Worldwide Interoperability for MicrowaveAccess abbreviates WiMAX as) technology is a kind of broadband wireless access standard, and this standard can provide towards the high speed of the Internet to connect based on 802.16 agreements.Fig. 1 is the schematic diagram of WiMAX network reference model, and as shown in Figure 1, the WiMAX network mainly comprises:

Access business network (Access Service Network, abbreviate ASN as), be used for being connected, devolved authentication mandate charging message, discovery and selection business network, relay function be provided, carry out the radio open resource management and develop and manage access business network and the tunnel that is connected between the business network for setting up to be connected with the internet of WiMAX terminal with the WiMAX terminal.

Connect business network (Connet Service Network, abbreviate CSN as), be mainly used in distribution of user's IP address and access, authentication and authorization charging agency or service, based on the strategy of custom system parameter and permission control, access business network and the foundation that is connected tunnel between the business network and management, connection business network internetwork roaming tunnel and mobile management.And CSN is divided into local (Home) CSN network and visit ground (Visited) CSN network.

Fig. 2 is the schematic diagram of the WiMAX policy and charging control network architecture in the prior art.As shown in Figure 2, comprising:

Application function (Applicationg Function abbreviates AF as) is used to policy, billing decision making function entity to provide authorization decision needed application layer signaling information.Policy, billing decision making function entity (Policy and Charging Rules Function, abbreviate PCRF as), the traffic signaling information that provides according to application function is provided, the user-subscribed database information that user-subscribed database provided, the access network relevant information that policy and charging enforcement function entity provided, carry out customer service service quality (Quality Of Service abbreviates QoS as) authorization decision.User-subscribed database (Subscriber Profile Repositoru abbreviates SPR as) is used for the QoS of survice information of storing user subscription.

Strategy distribution functional entity (Policy Decision Function, abbreviate PDF as), the policy information that is used for receiving from policy, billing decision making function entity is forwarded to the policy execution entity A-PCEF and the CSN domain policy in ASN territory respectively and carries out entity C-PCEF.The ASN domain policy is carried out entity (A-Policy and Charging Enforcement Function abbreviates A-PCEF as), is responsible for the policy information that receives in the execution of ASN territory.The CSN domain policy is carried out entity (C-Policy and Charging Enforcement Function abbreviates A-PCEF as, abbreviates C-PCEF as), is responsible for the policy information that receives in the execution of CSN territory.Service flow authorization anchor point (Anchor Service Flow Authorization abbreviates AnchorSFA as) is the R3 destination node of Business Stream information signaling plane.Service flow authorization service point (Serving Service Flow Authorization abbreviates Serving SFA as) is positioned on the data channel end points, is the execution point to the Business Stream operation.

And, also comprise home agent (homeAgent in the WiMAX policy and charging control network architecture, abbreviate HA as), policy and charging control (Policy Charging Control, abbreviate PCC as), authentication and authorization charging functional entity (Authentication AuthorizationAccounting abbreviates AAA as), local IP network (Home IP Network).

At present, in the WiMAX policy charging control architecture, the complete conversation establishing flow process of a cover of access business network has been proposed based on 3GPP policy and charging control mechanism.As shown in Figure 3, comprise following processing:

Step 301, the ASN domain policy is carried out the request to create that entity receives a WiMAX session, and this request to create may be triggered by predetermined logic functional entity in the input field;

Step 302, the ASN domain policy is carried out entity to strategy distribution functional entity request mandate business and policy charging rule information, comprises following Given information in the solicited message of policy execution entity simultaneously: connect network type, subscriber equipment/IP identification information, policy execution entity IP address/identification information etc.;

Step 303, strategy distribution functional entity store information is transmitted this information to policy, billing decision making function entity simultaneously;

Step 304, if policy, billing decision making function entity can not be found this signatory person's relevant information, promptly send a request of obtaining user signing contract information to user-subscribed database, policy, billing decision making function entity adheres to signatory person's identification information in this solicited message;

Step 305, user-subscribed database provides the user relevant information of contracting to policy, billing decision making function entity, for example, user's signing service, service authorization rank etc.;

Step 306, policy, billing decision making function entity from the access network information that policy execution entity receives, is made user's initial Q oS authorization decision according to the user signing contract information that receives from subscribed database;

Step 307, policy, billing decision making function entity is confirmed the establishment of this WiMAX session to the strategy distribution functional entity;

Step 308, strategy distribution functional entity are confirmed the establishment of this WiMAX session to policy execution entity;

Step 309, policy execution entity are installed the subscriber policy rule of authorizing according to the policy information that receives from the strategy distribution functional entity;

Step 310, policy execution entity respond this WiMAX conversation establishing request.

From above-mentioned processing procedure as can be seen, do not consider the problem that policy execution functional entity how can discovery strategy charging decision making function entity/strategy distribution functional entity in this handling process.Yet, propose at present to make the technical scheme that policy execution functional entity can discovery strategy charging decision making function entity/strategy distribution functional entity as yet.

Summary of the invention

Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of discover method and device of policy charging decision function/policy distribution function entity, to solve the problem that policy execution functional entity in the correlation technique can not discovery strategy charging decision making function entity/strategy distribution functional entity.

According to an aspect of the present invention, provide the discover method of a kind of policy, billing decision making function entity/strategy distribution functional entity, be used for the micro-wave access global inter communication network.

Discover method according to policy, billing decision making function entity of the present invention/strategy distribution functional entity comprises: home network receives the conversation establishing Indication message, wherein, carries the predetermined sign that descriptive session is created Indication message in the conversation establishing Indication message; Home network is in response to the conversation establishing Indication message, obtains predetermined sign, and according to predetermined sign Indication message created in session and sent to the function corresponding entity.

Further, in the present invention, also have following characteristics: if initiation session is created under the situation of user for roaming of Indication message, home network receives before the conversation establishing Indication message, also comprise: the strategy execution body in the access business network connects business network to the visit territory and sends the conversation establishing Indication message, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign; The visit territory connects business network in response to the conversation establishing Indication message, obtains user network and inserts sign, and insert sign according to user network and Indication message is created in session sent to home network.

Further, in the present invention, also have following characteristics: if initiation session is created the user of Indication message under the non-roaming situation, home network receives before the conversation establishing Indication message, also comprise: the strategy execution body in the access business network sends the conversation establishing Indication message to home network, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign.

Further, in the present invention, also have following characteristics: home network also comprises after receiving the conversation establishing Indication message: home network inserts sign according to user network and judges whether the user is the contracted user of home network; Be judged as under the situation that is, according to predetermined sign Indication message created in session and sent to the function corresponding entity.

Further, in the present invention, also have following characteristics: the strategy execution body comprises: policy execution entity, service flow authorization anchor point, authenticator.

Further, in the present invention, also have following characteristics: the function corresponding entity comprises: authentication and authorization charging server, policy, billing decision making function entity, strategy distribution functional entity.

According to a further aspect in the invention, the present invention also provides the discovery device of a kind of policy, billing decision making function entity/strategy distribution functional entity, is positioned at home network.

Discovery device device according to policy, billing decision making function entity of the present invention/strategy distribution functional entity comprises: receiver module, be used to receive the conversation establishing Indication message, wherein, carry the predetermined sign that descriptive session is created Indication message in the conversation establishing Indication message; Acquisition module is used in response to the conversation establishing Indication message, obtains predetermined sign; Sending module is used for according to predetermined sign Indication message being created in session and sends to the function corresponding entity.

Further, in the present invention, also have following characteristics: if initiation session is created under the situation of user for roaming of Indication message, then receiver module is further used for receiving the conversation establishing Indication message that the strategy execution body in the access business network of visiting the forwarding of territory connection business network sends, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign; If it is under the non-roaming situation that initiation session is created the user of Indication message, receiver module is further used for receiving the conversation establishing Indication message that the strategy execution body in the access business network sends, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign.

Further, in the present invention, also have following characteristics: judge module is used for inserting sign according to user network and judges whether the user is the contracted user of home network.

Further, in the present invention, also have following characteristics: sending module also is used for being judged as under the situation that is at judge module, according to predetermined sign Indication message is created in session and sent to the function corresponding entity, and be used for being judged as under the situation not at judge module, insert sign according to user network the home network that Indication message sends to the user is created in session.

By means of technical scheme of the present invention, make that policy and charging enforcement function entity can discovery strategy charging decision making function entity/strategy distribution functional entity.

Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.

Description of drawings

Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:

Fig. 1 is a WiMAX network reference schematic diagram in the prior art;

Fig. 2 is a WiMAX PCC network architecture schematic diagram in the prior art;

Fig. 3 is the signaling process figure of WiMAX PCC conversation establishing in the prior art;

Fig. 4 is that the NAP that the present invention uses shares the scene schematic diagram;

Fig. 5 is the flow chart according to the discover method of the policy, billing decision making function entity/strategy distribution functional entity of the embodiment of the invention;

Fig. 6 is the flow chart according to the discover method detailed process of the policy, billing decision making function entity/strategy distribution functional entity of the embodiment of the invention;

Fig. 7 is the block diagram according to the discovery device of the policy, billing decision making function entity/strategy distribution functional entity of the embodiment of the invention.

Embodiment

Functional overview

At present, in the WiMAX network architecture, exist network insertion operator to share scene, that is, a Network Access Provider connects a plurality of Internet Service Providers' situation.As shown in Figure 4, ASN gateway among the NAP of network insertion operator or PCEF provide access for user 1 and user 2, and, with the network service provider that NAP is connected simultaneously is NSP1 and NSP2, at NSP1, comprise local authentication and authorization charging functional entity among the NSP2, policy, billing decision making function entity, home agent, the CSN domain policy is carried out point, policy, billing decision making function entity among the NAP is subjected to policy, billing decision making function entity (PCRF) control in NSP1 and the NSP2 respectively, makes that the policy and charging enforcement function entity in the network insertion operator can not discovery strategy charging decision making function entity/strategy distribution functional entity.The invention provides a kind of technical scheme that addresses the above problem, mainly comprise three aspects:

1, for the addressing of support policy billing function inter-entity, need on access business network gateway (AGW, ASN Gateway), finish relevant processing; 2, under the roaming sight, visit connects business network, and (visited Connect Service Network vCSN) creates message to the strategy session that mails to user's home network and handles; 3, home network is to the localization process of policy, billing decision making function entity.

Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.

Method embodiment

According to embodiments of the invention, provide the discover method of a kind of policy, billing decision making function entity/strategy distribution functional entity.Fig. 5 is the flow chart according to the discover method of the policy, billing decision making function entity/strategy distribution functional entity of the embodiment of the invention, as shown in Figure 5, comprises and handling:

Step S502, home network receives the conversation establishing Indication message, wherein, carries the predetermined sign that descriptive session is created Indication message in the conversation establishing Indication message;

In the processing of step S502, be divided into two kinds of situations, the sight that is respectively roaming is down and under the non-roaming sight, below, in the above two kinds of cases processing is elaborated.

(1) if initiation session is created the user of Indication message under the situation about roaming, also needed following processing before carrying out step S502 processing: the strategy execution body in the access business network connects business network to the visit territory and sends the conversation establishing Indication message, wherein, carry predetermined sign in the Indication message and also further carry user network access sign; The visit territory connects business network in response to the conversation establishing Indication message, obtains user network and inserts sign, and insert sign according to user network and Indication message is created in session sent to home network.

For example, user A home network service provider domain name is chinamobile.com, then user network access sign format is abcdefgh@CHINAMOBILE.COM, should comprise this user network in the conversation establishing Indication message that the strategy execution body sends and insert sign.Simultaneously, in this WiMAX conversation establishing message, should comprise the Diameter Application sign of describing this establishment Indication message, be assumed to be xxxxxxxx, visit ground connects business network and receives the conversation establishing Indication message that access business network sends, then this visit ground connection business network is checked the network access Identifier information in this message, find that it is abcdefgh@CHINAMOBILE.COM, then with this forwards to user's home network chinamobile.

(2) be under the non-roaming situation if initiation session is created the user of Indication message, before carrying out step S502, also need to carry out following processing: the strategy execution body in the access business network sends the conversation establishing Indication message to home network, wherein, carry predetermined sign in the Indication message and also further carry user network access sign.

In above-mentioned processing, the strategy execution body be specially following one of at least: policy execution entity, service flow authorization anchor point, authenticator.

Step S504, home network be in response to the conversation establishing Indication message, obtains predetermined sign, and according to predetermined sign Indication message is created in session and sent to the function corresponding entity.

Further, before step S504, home network need insert sign according to user network and judge whether the user is the contracted user of home network; Be judged as under the situation that is, according to predetermined sign Indication message created in session and sent to the function corresponding entity.Need to prove, corresponding physical entity be specially following one of at least: authentication and authorization charging server, policy, billing decision making function entity, strategy distribution functional entity.

For example, ownership connects the establishment Indication message that business network receives user A, and relatively the user network in the message inserts sign abcdefgh@CHINAMOBILE.COM and is found to be the contracted user of oneself; Then the further sign of the Diameter Application in this message is relatively found that this is designated xxxxxxxx, and has been identified the diameter session of a policy and charging control, then this message is mail to the policy, billing decision making function and handles.

Below, in conjunction with Fig. 6, above-mentioned technical scheme is described in detail.

The WiMAX conversation establishing that step S601, A-PCEF/Anchor-SFA/Authenticator (can be used as same entity, to finish functions such as policy and charging enforcement, service flow authorization anchor point, authenticator) receive access business network inside triggers indication.

Need to prove, under general scene (non-Network Access Provider is shared scene), access business network only connects unique connection business network, and by mode such as pre-configured, the strategy execution body can be created session message and be sent to suitable connection business network.But under the scene that Network Access Provider is shared, Network Access Provider connects a plurality of Internet Service Providers.The access business network gateway can be addressed to the suitable network service provider according to the local collocation strategy of Network Access Provider.

Step 602, under the roaming scence, visit connects business network and at first receives the conversation establishing request that the strategy execution body sends.Visit connection business network is transmitted this according to the access of the user network in this conversation request identification information and is asked the home network to the user.

Step 603, home network (home network) receives user's conversation establishing request message, this message may be from access network strategy execution body (under the non-roaming situation) or visited network (under the situation of roaming), the home network relatively user network in this conversation request inserts identification information, be found to be the contracted user of oneself, carry out distribution processor according to the Diameter Application sign of this message then.

By above-mentioned processing, can be so that policy and charging enforcement function entity can discovery strategy charging decision making function entity/strategy distribution functional entity.

Device embodiment

According to embodiments of the invention, the discovery device of a kind of policy, billing decision making function entity/strategy distribution functional entity is provided, be positioned at home network, Fig. 7 is the block diagram according to the discovery device of the policy, billing decision making function entity/strategy distribution functional entity of the embodiment of the invention, as shown in Figure 7, comprise receiver module 70, acquisition module 72, sending module 74.Below, above-mentioned module is described in detail.

Receiver module 70 is used to receive the conversation establishing Indication message, wherein, carries the predetermined sign that descriptive session is created Indication message in the conversation establishing Indication message.

(1) creates under the situation of user for roaming of Indication message in initiation session, receiver module 70 also is used for receiving the conversation establishing Indication message of the strategy execution body transmission of the access business network of visiting the forwarding of territory connection business network, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign.

The discovery mechanism of foregoing description to the requirement that visit connects business network is: no matter whether visited network has the policy and charging control ability, visited network can insert identification information according to the user network in this conversation establishing request at least and forward it to user's home network.

(2) under the user that initiation session is created Indication message is non-roaming situation, receiver module 70 is used for receiving the conversation establishing Indication message that the strategy execution body of access business network sends, wherein, carry predetermined sign in the conversation establishing Indication message and also further carry user network access sign.

Acquisition module 72 is connected to receiver module 70, is used in response to the conversation establishing Indication message, obtains predetermined sign.

Sending module 74 is connected to acquisition module 72, is used for according to predetermined sign Indication message being created in session and sends to the function corresponding entity.

Said apparatus can also comprise judge module, is used for inserting sign according to user network and judges whether the user is the contracted user of home network.

Sending module 74 also is used for being judged as under the situation that is at judge module, according to predetermined sign Indication message is created in session and sent to the function corresponding entity, and be used for being judged as under the situation not at judge module, according to user network access sign Indication message is created in session and sent to the corresponding home network of user.

That is to say, acquisition module 72 in the described device of embodiment is finished the analysis to user WiMAX conversation establishing Indication message, and judge module can insert sign according to the user network in the message and judge whether local network is the purpose territory of this message, acquisition module 72 can also be resolved the Diameter Application identification information of this session, can forward it to physical entity in the suitable territory (physical entity specifically refers to authentication and authorization charging server or policy, billing decision entity in this territory) by sending module 74 according to this Application sign.In this home network prerequisite logic entity may be an independent community or be attached to authentication and authorization charging server or other entity in.Need to prove, this message be not further processed according to the discovery device of present embodiment, just according to this Diameter Application sign with the message transparent transmission to authentication and authorization charging server or policy, billing decision entity.

In sum,, make that policy and charging enforcement function entity can discovery strategy charging decision making function entity/strategy distribution functional entity, filled up correlation technique in this blank on the one hand by means of technical scheme of the present invention.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (10)

1. the discover method of policy, billing decision making function entity/strategy distribution functional entity is characterized in that,
Home network receives the conversation establishing Indication message, wherein, carries the predetermined sign of describing described conversation establishing Indication message in the described conversation establishing Indication message;
Described home network obtains described predetermined sign in response to described conversation establishing Indication message, and according to described predetermined sign described conversation establishing Indication message is sent to the function corresponding entity.
2. method according to claim 1 is characterized in that, if initiate under the situation of user for roaming of described conversation establishing Indication message, described home network receives before the described conversation establishing Indication message, also comprises:
Strategy execution body in the access business network connects business network to the visit territory and sends described conversation establishing Indication message, wherein, carries described predetermined sign in the described conversation establishing Indication message and further carries user network and insert sign;
Described visit territory connects business network in response to described conversation establishing Indication message, obtains described user network and inserts sign, and according to described user network access sign described conversation establishing Indication message is sent to described home network.
3. method according to claim 1 is characterized in that, is that described home network receives before the described conversation establishing Indication message, also comprises under the non-roaming situation if initiate the user of described conversation establishing Indication message:
Strategy execution body in the access business network sends described conversation establishing Indication message to described home network, wherein, carries described predetermined sign in the described conversation establishing Indication message and further carries user network and insert sign.
4. according to claim 2 or 3 described methods, it is characterized in that described home network also comprises after receiving described conversation establishing Indication message:
Described home network inserts sign according to described user network and judges whether described user is the contracted user of described home network;
Be judged as under the situation that is, described conversation establishing Indication message sent to corresponding functional entity according to described predetermined sign.
5. according to claim 2 or 3 described methods, it is characterized in that described strategy execution body comprises: policy execution entity, service flow authorization anchor point, authenticator.
6. according to each described method among the claim 1-3, it is characterized in that corresponding functional entity comprises: authentication and authorization charging server, policy, billing decision making function entity, strategy distribution functional entity.
7. the discovery device of policy, billing decision making function entity/strategy distribution functional entity is positioned at home network, it is characterized in that, described device comprises:
Receiver module is used to receive the conversation establishing Indication message, wherein, carries the predetermined sign of describing described conversation establishing Indication message in the described conversation establishing Indication message;
Acquisition module is used for obtaining described predetermined sign in response to described conversation establishing Indication message;
Sending module is used for according to described predetermined sign described conversation establishing Indication message being sent to the function corresponding entity.
8. device according to claim 7 is characterized in that,
If initiate under the situation of user for roaming of described conversation establishing Indication message, then described receiver module is further used for receiving the described conversation establishing Indication message that the strategy execution body in the access business network of visiting the forwarding of territory connection business network sends, wherein, carry described predetermined sign in the described conversation establishing Indication message and also further carry user network access sign;
If initiate the user of described conversation establishing Indication message and be under the non-roaming situation, described receiver module is further used for receiving the described conversation establishing Indication message that the strategy execution body in the access business network sends, wherein, carry described predetermined sign in the described conversation establishing Indication message and also further carry user network access sign.
9. device according to claim 8 is characterized in that, further comprises:
Judge module is used for inserting sign according to described user network and judges whether described user is the contracted user of described home network.
10. device according to claim 9 is characterized in that,
Described sending module also is used for being judged as under the situation that is at described judge module, according to described predetermined sign described conversation establishing Indication message is sent to corresponding functional entity, and be used for being judged as under the situation not at described judge module, insert the home network that sign sends to described conversation establishing Indication message described user according to described user network.
CN200810210847.7A 2008-08-20 2008-08-20 Method and apparatus for discovering policy charging decision function/policy distribution function entity CN101345637B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062354A1 (en) * 2004-12-07 2006-06-15 Electronics And Telecommunications Research Institute Access network selection method using multi-criteria decision making in mobile heterogeneous network
CN101031140A (en) * 2006-03-03 2007-09-05 华为技术有限公司 Network browse agent method and system
CN101159562A (en) * 2007-10-26 2008-04-09 中兴通讯股份有限公司 Method for establishing IP connection to access to network conversation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006062354A1 (en) * 2004-12-07 2006-06-15 Electronics And Telecommunications Research Institute Access network selection method using multi-criteria decision making in mobile heterogeneous network
CN101031140A (en) * 2006-03-03 2007-09-05 华为技术有限公司 Network browse agent method and system
CN101159562A (en) * 2007-10-26 2008-04-09 中兴通讯股份有限公司 Method for establishing IP connection to access to network conversation

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