CN1964361A - A method for surrogating mobile terminal communication, access service network and WiMAX network structure - Google Patents
A method for surrogating mobile terminal communication, access service network and WiMAX network structure Download PDFInfo
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Abstract
The provided agent communication method based WiMAX network framework comprises: ASN allocates private address for mobile terminal and acts as the terminal agent to obtain business IP address; ASN converts the private address and mobile terminal business IP address to transfer IP message. This invention can reduce complexity of MS agent communication.
Description
Technical field
The present invention relates to the WiMAX network technology, relate in particular to the method for acting on behalf of communication of mobile terminal, access service network and the WiMAX network architecture based on the WiMAX network architecture.
Background technology
The WiMAX that the IEEE802.16 standard is mentioned (Worldwide Interoperability MicrowaveAccess, micro-wave access to global intercommunication) be a kind of wireless MAN (WMAN) technology, this technology has proposed a kind of new air-interface standard at microwave and millimeter wave frequency band.WiMAX is a kind of emerging wireless communication technology, is used for transmitting wireless signals, and it can provide towards the high speed of the Internet and connect, and uses this technology, and the user can carry out data communication with interior scope with very fast speed at 50 kilometers.
WiMAX Forum is found in April 9 calendar year 2001, is a non-profit organization by the common foundation of leading communication new product and equipment company.This tissue not only will be set up a whole set of based on standards such as IEEE802.16 standards, also is devoted to the work of a series of broadband wireless access market developments of making greater efforts to promote such as expansion in exploration, the market of analysis, the application model of research, the demand of the BWA that can run simultaneously.This tissue has been set up certification work group (CWG), technical work group (TWG), frequency spectrum working group (RWG), market working group (MWG), demand working group (SPWG), network work group (NWG) and application study working group (AWG).
Network work group (Network Working Group, NWG), promptly formulate the working group of the WiMAX network standard, it is present working group active and the most of greatest concern, the action of this working group mainly concentrates on the formulation of network element, functional entity, message and agreement outside IEEE802.16 standard and the core net, carries out clear and definite definition and description for the part that does not define in the existing standard and relate to.The target of this working group is: set up network reference model end to end, satisfy the demand that working group of WiMAX Forum operator proposes; Formulate the network standard end to end, functional entity in the define grid and network interface; For the intercommunication of WiMAX system authentication lays the foundation.
The network work group is divided into three phases to the formulation of the network standard, and wherein, the focus of second stage is the definition of network architecture reference model, the description of reference point, the definition of network function and the explanation of agreement and flow process.
Present WiMAX network reference model as shown in Figure 1, the WiMAX network comprises SS (Subscribe Station, subscriber station)/MS (Mobile Subscribe Station, travelling carriage), ASN (Access Service Network, access service network) and CSN (Conectivity ServiceNetwork, connectivity serving network), wherein, MS is by R1 (Reference Point 1, air interface reference point 1) inserts ASN, be connected by Interface R4 between ASN and other ASN, be connected by Interface R3 between ASN and the CSN, interface between MS and the CSN is logic interfacing R2, carries as actual physical by R1 interface and Interface R3.ASN is used to provide wireless access control, and CSN is used to provide IP (Internet Protocol, Internet protocol) connection management.
When travelling carriage in roaming scence following time, for the WiMAX travelling carriage, by logic interfacing R2 respectively with visited network service provider (VIsited Network Service Provider, Visited NSP or V-NSP) and (the Home Network Service Provider of home network services operator, Home NSP or H-NSP) communication, connect by the R5 interface between visited network service provider and the home network services operator.Network provides roaming service for the user, and the user still can enjoy the WiMAX service after moving to the strange land.
Fig. 2 is the networking schematic diagram of access service network.As shown in Figure 2, access service network comprises BS (Base Stasion, the base station) and ASN-GW (ASN-Gateway, access service network gateway), wherein, interface between the BS is the R8 interface, interface between BS and the ASN-GW is the R6 interface, ASN-GW can be TGW (Target Gateway, intended gateway), SGW (Service Gateway, gateway) and AGW (Anchor Gateway, anchor ASN-GW), interface between each ASN-GW is an Interface R4, and the interface between ASN-GW and the CSN is an Interface R3.
In network model shown in Figure 1, MIP (Mobile Intemet Protocol, mobile IP protocol) is used to realize striding the terminal mobility management of ASN, and according to concrete realization difference, WiMAX Forum has defined two kinds of optional MIP schemes: a kind of CMIP of being (Client Mobile IP, client's pattern moves IP), another kind is PMIP (Proxy Mobile IP, proxy mode moves IP).
In the CMIP scheme, the MIP client is arranged in MS, the function of the MIP client of complete.MS need know the process details of MIP fully, comprises that the registration of MIP and registration refresh.
The data passes access diagram from CSN to MS under the present PMIP pattern as shown in Figure 3.In Fig. 3, the PMIP client is at HA (Home Agent, home agent) Care-of Address of registration is CoA (Core of Address in, the core net address), be the address of FA (Foreign Agent, external agent unit), the home address of MS is PoA (Point of Attachment, the attachment point address), i.e. the address that obtains by DHCP (Dynamic Host Connguration Protocol, DHCP) or other approach of MS.Wherein, DP Fn provides R6 interface data channel function, so DP Fn also can be called R6 interface data channel function unit, 802.16e CS represents the convergence sub-layer of 802.16e agreement, L2 presentation layer 2, Payload represents load, MIP tunnel represents the MIP tunnel, TunnelID represents Tunnel Identifier, and Intra-ASN Data Path represents the ASN internal data path.
In present PMIP scheme, the R3 mobile management depends on the Signalling exchange between MIP client, FA and the HA.Wherein, the MIP client is positioned at the ASN network, and the MIP client replaces MS to carry out the R3 mobile management, and all MIP controls all are to finish at network side.The MIP process that is different from the RFC3344 standard definition, the user data that arrives FA in the PMIP scheme is to hand to MS by relevant R6 or R4 tunnel, and signaling needs to be submitted to PMIPClient rather than MS among the PMIP Mobility Manager.Wherein, PMIP Mobility Manager is the functional entity of a plurality of PMIP clients of management.
In present PMIP scheme, finish the registration process of MIP by PMIP Client Agent MS.Before finishing the MIP registration process, MS need obtain service IP address by the DHCP mode, be HoA (MS Home Address, the home address of MS), and when obtaining service IP address, MS does not have the IP address, so the Pre-provisioned Business Stream between MS and the ASN can't be set up, for this reason, the WiMAX network need be set up occasional service stream and finish the mutual data of dhcp process with carrying, after dhcp process finishes, delete occasional service stream again, perhaps occasional service stream is revised as the Pre-provisioned Business Stream.After MS obtains service IP address by the DHCP mode, communicate by the service IP address that obtains and external network or other ASN.In actual applications, set up, delete and revise the work more complicated of occasional service stream, will prolong the professional time of setting up like this.Therefore, in present PMIP scheme, it is comparatively complicated to act on behalf of the MS method for communicating, and the professional time delay of setting up is big.
Summary of the invention
The technical problem that the embodiment of the invention will solve is to provide a kind of method, access service network and WiMAX network architecture of acting on behalf of communication of mobile terminal, acts on behalf of the complexity of MS communication with reduction.
For addressing the above problem, the embodiment of the invention provides a kind of method of acting on behalf of communication of mobile terminal based on the WiMAX network architecture, comprise: ASN is the privately owned address that portable terminal distributes use when communicating by letter with access service network ASN, and acts on behalf of mobile terminal to obtain business IP address; ASN transmits the IP message of portable terminal transmitting-receiving by the conversion between the service IP address that carries out described privately owned address and described portable terminal.
The embodiment of the invention also provides a kind of access service network based on the WiMAX network architecture, comprise R6 interface data channel function unit and FA, also comprise: mobile terminal IP address agent unit, be arranged between R6 interface data channel function unit and the FA, be used to carry out the conversion between the service IP address of privately owned address and portable terminal, transmit the IP message of portable terminal transmitting-receiving, wherein, described privately owned address be described mobile terminal IP address agent unit be portable terminal distribute communicating by letter with ASN the time address of using, service IP address is that described mobile terminal IP address agent unit is acted on behalf of the address that portable terminal obtains.
The embodiment of the invention also provides a kind of WiMAX network architecture, comprise portable terminal, access service network ASN and connectivity serving network CSN, it is characterized in that: described ASN comprises mobile terminal IP address agent unit, be used to carry out the conversion between the service IP address of privately owned address and portable terminal, transmit the IP message between portable terminal and the network, wherein, described privately owned address be described mobile terminal IP address agent unit be portable terminal distribute communicating by letter with ASN the time address of using, described service IP address is acted on behalf of the address that portable terminal obtains by described mobile terminal IP address agent unit.
Compared with prior art, the embodiment of the invention has the following advantages:
In embodiments of the present invention, portable terminal uses privately owned address and ASN to communicate, and then communicate by letter with MS under external network or other ASN, ASN acts on behalf of mobile terminal to obtain business IP address, and can finish the conversion of privately owned address and service IP address, in this case, the service IP address that portable terminal can not need to obtain oneself just can realization with external network or other ASN between communicate by letter, so, need not set up between portable terminal and the ASN, the complex process of deletion or modification occasional service stream, just can realize professional foundation, therefore, the technical scheme of the embodiment of the invention can reduce the complexity of acting on behalf of MS communication;
In embodiments of the present invention, ASN acts on behalf of mobile terminal to obtain business IP address, portable terminal does not need to obtain service IP address, in this case, ASN is after obtaining service IP address, can trigger the MIP client and initiate the MIP registration process, and in existing P MIP scheme, the MIP client is initiated before the MIP registration process, portable terminal must at first obtain service IP address, so, the MIP client initiates the MIP registration process and there is strict time coupled relation in mobile terminal to obtain business IP address, can prolong the professional time of setting up like this, and because the embodiment of the invention is not required to be the foundation of mobile terminal to obtain business IP address, deletion or modification occasional service stream, and ASN is after obtaining service IP address, can trigger the MIP client and initiate the MIP registration process, therefore, the embodiment of the invention has reduced this time coupling to a certain extent, has shortened the time of professional foundation.
Description of drawings
Fig. 1 is present WiMAX network reference model figure;
Fig. 2 is the networking schematic diagram of present access service network;
Fig. 3 is the data passes access diagram from CSN to MS under the present PMIP pattern;
Fig. 4 is the flow chart of the embodiment of the invention;
Fig. 5 is the data surface protocol model figure of the IP message transmission channels of the embodiment of the invention;
Fig. 6 is the chain of command signaling procedure flow chart of the embodiment of the invention;
Fig. 7 is the ASN structural representation of the embodiment of the invention;
Fig. 8 is the WiMAX network architecture schematic diagram of the embodiment of the invention.
Embodiment
Below we will be in conjunction with the accompanying drawings, optimum implementation of the present invention is described in detail.At first it is to be noted, the implication of the term of using among the present invention, words and claim can not only only limit to its literal and common implication and go to understand, the implication and the notion that also comprise and then conform to technology of the present invention, this is because we are as the inventor, to suitably provide the definition of term, so that the most appropriate description is carried out in our invention.Therefore, the configuration that provides in this explanation and the accompanying drawing is first-selected embodiment of the present invention, rather than will enumerates all technical characteristics of the present invention.We will recognize to also have the various equivalent scheme or the modifications that can replace our scheme.
At first the overall technical architecture to method embodiment of the present invention describes.The method of acting on behalf of communication of mobile terminal based on the WiMAX network architecture of the embodiment of the invention comprises: access service network ASN is the privately owned address that portable terminal distributes use when communicating by letter with ASN, and acts on behalf of mobile terminal to obtain business IP address; ASN transmits the IP message of portable terminal transmitting-receiving by the conversion between the service IP address that carries out described privately owned address and described portable terminal.
Wherein, described privately owned address is attachment point address PoA, described service IP address is the home address HoA of portable terminal, and the mode of acting on behalf of mobile terminal to obtain business IP address can be modes such as dynamic host configuration protocol DHCP mode or checking, mandate, charging AAA.
The process that ASN carries out the conversion between the service IP address of described privately owned address and described portable terminal can be realized by following step:
If ASN receives the IP message that portable terminal sends, then the source address in the IP message is converted to service IP address by privately owned address;
If ASN receives the IP message that is sent to portable terminal, then the destination address in the IP message is converted to privately owned address by service IP address.
Concrete, a mobile terminal IP address agent unit can be set in ASN, and be embodied as portable terminal by mobile terminal IP address agent unit and distribute privately owned address, act on behalf of mobile terminal to obtain business IP address and carry out operations such as conversion between the service IP address of described privately owned address and described portable terminal.
Below in conjunction with Fig. 4, the embodiment of the inventive method is elaborated.As shown in Figure 4, method
Embodiment comprises the steps:
S401: mobile terminal IP address agent unit is set in ASN.
Mobile terminal IP address agent unit is mainly used in the mapping relations of privately owned address of record and service IP address, and carry out conversion between demesne location and the service IP address, wherein, privately owned address is that mobile terminal IP address agent unit is the MS addresses distributed at subsequent step, and service IP address is that mobile terminal IP address agent unit is acted on behalf of the address that MS obtains at subsequent step.
Mobile terminal IP address agent unit can be arranged between the R6 interface data channel function unit and FA among the ASN, because MS and external network or other ASN use privately owned address when communicating, and FA can only identification services IP address, so through the address transition of mobile terminal IP address agent unit, the address of the IP message that MS and FA receive all is discernible.
S402: mobile terminal IP address agent unit is the privately owned address that MS distributes use when communicating by letter with ASN, and acts on behalf of MS and obtain service IP address.
Privately owned address is by distributing in the local pool of mobile terminal IP address agent unit in ASN, privately owned address can be the visible PoA of MS, only effectively inner at ASN, MS can use privately owned address and ASN to communicate, and then communicates with external network or other ASN.
Mobile terminal IP address agent unit can be in a certain moment after the verification process in the MS initial access process finishes, by DHCP or AAA (Authentication Authorization Accounting, checking, mandate, charging) mode, act on behalf of MS and apply for service IP address to CSN, service IP address can be the HoA of MS.
After mobile terminal IP address agent unit obtains service IP address, can trigger the HA of MIP client in CSN and initiate registration process, wherein, forwarding address is the CoA of FA, and home address is the HoA that obtains.Carrying out the relevant information of all MIP of registration will obtain from the AAA message of exchange in authentication phase, and relevant information comprises Dynamic Host Configuration Protocol server address or HoA, HA address and is used to generate the security information of MN-AAA authentication extension.
After mobile terminal IP address agent unit gets access to service IP address, can write down the mapping relations of privately owned address and service IP address.
S403: described mobile terminal IP address agent unit transmits the IP message of MS transmitting-receiving by the conversion between the service IP address that carries out described privately owned address and MS.
The IP message that sends for MS, described mobile terminal IP address agent unit is converted to service IP address with the source address in the IP message by privately owned address, sends FA afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
For the IP message that is sent to MS, described mobile terminal IP address agent unit is converted to privately owned address with the destination address in the IP message by service IP address, sends to MS afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
In the above-described embodiments, the data surface protocol model of IP message transmission channels or chain of command signaling procedure are respectively as Fig. 5 and shown in Figure 6.
In Fig. 5,802.16 CS is 802.16 agreement Convergence Sublayers, 802.16 MAC is 802.16 medium access control sublayer, 802.16 PHY is 802.16 physical layers, DP Fn is the datapath function unit, R6 L2 represents 2 processing of R6 interface layer, R6 PHY is a R6 interface physical layer, R3 L2 represents 2 processing of Interface R3 layer, R3 PHY is the Interface R3 physical layer, and Payload represents load, and TunnelID represents Tunnel Identifier, Intra-ASN Data Path is a data channel between ASN, and MIP Tunnel is the MIP tunnel.
In Fig. 6,802.16e Function provides the function of 802.16e agreement defined, and MS IP Proxy is a mobile terminal IP address agent unit, and MIP Client is the MIP client, and DHCP Server is a Dynamic Host Configuration Protocol server.As shown in Figure 6, the chain of command signaling procedure can be realized by following plurality of processes or step:
MS and 802.16e Function carry out initial access of MS and verification process;
802.16e Function sends MS IP address assignment request message to MS IP Proxy;
MS IP Proxy is the MS distributing IP address of appointment, i.e. PoA;
MS IP Proxy returns MS IP address assignment response message to 802.16e Function, carries the PoA that distributes into MS in the described response message;
802.16e Function and MS carry out MS IP assignment process;
After MS IP Proxy is MS distributing IP address, can apply for the process of HoA with DHCP Server;
After MS IP Proxy obtains HoA, obtain the HoA notification message to 802.16e Function transmission, it has obtained HoA with notice 802.16e Function;
802.16e after Function receives and obtains the HoA notification message, send triggering MIP registration process message to the MIP client;
MIP client and HA carry out the MIP registration process.
Need to prove that the foregoing description is applicable to the WiMAX network of supporting the PMIP pattern.
Now in conjunction with Fig. 7, the embodiment of ASN of the present invention is described.
As shown in Figure 7, ASN701 comprises MS IP Proxy7011,802.16e Function 7012, R6DP Fn7013, FA7014 and MIP Client7015, wherein, MS IP Proxy7011 is used for carrying out the conversion between the service IP address of privately owned address and MS (figure does not illustrate), transmit the IP message of MS transmitting-receiving, wherein, privately owned address be for MS distribute communicate by letter with ASN701 the time address of using, service IP address is that MS IP Proxy7011 acts on behalf of the address that MS obtains, and R6 DP Fn7013 is R6 interface data channel function unit.
MS IP Proxy7011 is arranged between R6 DP Fn7013 and the FA7014.Because MS uses privately owned address when communicating by letter with external network or other ASN, FA7014 can only identification services IP address, so pass through the address transition of MS IP Proxy7011, the address of the IP message that MS and FA7014 receive all is discernible.
The privately owned address that ASN701 uses in the time of can communicating by letter with ASN701 for the MS distribution.Privately owned address can be distributed in the local pool of ASN701 by MS IP Proxy7011, privately owned address can be the visible PoA of MS, only effectively inner at ASN701, MS uses privately owned address and ASN701 to communicate, and then communicates with external network or other ASN.
MS IP Proxy7011 can be in a certain moment after the verification process in the MS initial access process finishes, by DHCP or AAA (Authentication Authorization Accounting, checking, mandate, charging) mode, act on behalf of MS to CSN (not illustrating among the figure) application service IP address, service IP address can be the HoA of MS.
After MS IP Proxy7011 obtains service IP address, can trigger the HA of MIP Client7015 in CSN and initiate registration process, wherein, forwarding address is the CoA of FA7014, and home address is the HoA that obtains.Carrying out the relevant information of all MIP of registration will obtain from the AAA message of exchange in authentication phase, and relevant information comprises Dynamic Host Configuration Protocol server address or HoA, HA address and is used to generate the security information of MN-AAA authentication extension.
MS IP Proxy7011 is after MS distributes privately owned address and receives service IP address, writes down the mapping relations of privately owned address and service IP address.
MS IP Proxy7011 can transmit the IP message of MS transmitting-receiving by the conversion between the service IP address that carries out privately owned address and MS.
For the IP message that MS sends, MS IP Proxy7011 is converted to service IP address with the source address in the IP message by privately owned address, sends to FA7014 afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
For the IP message that is sent to MS, MS IP Proxy7011 is converted to privately owned address with the destination address in the IP message by service IP address, sends to MS afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
Now in conjunction with Fig. 8, the embodiment of the WiMAX network architecture of the present invention is described.
As shown in Figure 8, the WiMAX network architecture comprises ASN801, MS802 and CSN803.Wherein, ASN801 comprises MS IP Proxy8011,802.16e Function 8012, R6 DP Fn8013, FA8014 and MIP Client8015, MS IP Proxy8011 is used to carry out the conversion between the service IP address of privately owned address and MS802, transmit the IP message of MS802 transmitting-receiving, wherein, privately owned address be for MS802 distribute communicate by letter with ASN801 the time address of using, service IP address is that MS IP Proxy8011 acts on behalf of the address that MS802 obtains, and R6 DP Fn8013 is R6 interface data channel function unit.CSN803 comprises HA8031, DHCP Server8032 and AAA8033.
MS IP Proxy8011 is arranged between R6 DP Fn8013 and the FA8014.Because MS uses privately owned address when communicating by letter with external network or other ASN, FA8014 can only identification services IP address, so pass through the address transition of MS IP Proxy8011, the address of the IP message that MS and FA8014 receive all is discernible.
The privately owned address that ASN801 uses in the time of can communicating by letter with ASN801 for the MS802 distribution.Privately owned address can be distributed in the local pool of ASN801 by MS IP Proxy8011, privately owned address can be the visible PoA of MS802, only effectively inner at ASN801, MS802 uses privately owned address and ASN801 to communicate, and then communicates with external network or other ASN.
MS IP Proxy8011 can be in a certain moment after the verification process in the MS802 initial access process finishes, by DHCP or AAA (Authentication Authorization Accounting, checking, mandate, charging) mode, act on behalf of MS802 and apply for service IP address to CSN803, service IP address can be the HoA of MS802.
After MS IP Proxy8011 obtains service IP address, can trigger the HA8031 of MIP Client8015 in CSN803 and initiate registration process, wherein, forwarding address is the CoA of FA8014, and home address is the HoA that obtains.Carrying out the relevant information of all MIP of registration will obtain from the AAA message of exchange in authentication phase, and relevant information comprises DHCP Server8032 address or HoA, HA8031 address and is used to generate the security information of MN-AAA authentication extension.
MS IP Proxy8011 is after MS distributes privately owned address and receives service IP address, writes down the mapping relations of privately owned address and service IP address.
MS IP Proxy8011 can transmit the IP message of MS802 transmitting-receiving by the conversion between the service IP address that carries out privately owned address and MS802.
The IP message that sends for MS802, MS IP Proxy8011 is converted to service IP address with the source address in the IP message by privately owned address, sends to FA8014 afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
For the IP message that is sent to MS802, MS IP Proxy8011 is converted to privately owned address with the destination address in the IP message by service IP address, sends to MS802 afterwards, simultaneously, can carry out corresponding conversion process to other protocol layer relevant informations in conjunction with practical application.
In embodiments of the present invention, MS uses privately owned address and ASN to communicate, mobile terminal IP address agent unit among the ASN is finished the conversion of privately owned address and service IP address, like this MS service IP address that can not need to obtain oneself just can realization with external network or other ASN between communicate by letter, so, need not set up, delete or revise the complex process of occasional service stream between MS and the ASN, just can realize professional foundation, therefore, the technical scheme of the embodiment of the invention can reduce the complexity of acting on behalf of MS communication, shortens the professional time of setting up.
In existing P MIP scheme, the MIP client is initiated before the MIP registration process, MS must at first obtain service IP address, so, the MIP client initiates the MIP registration process and MS obtains the time coupled relation that there is strictness in service IP address, can prolong the professional time of setting up like this, and in embodiments of the present invention, mobile terminal IP address agent unit is acted on behalf of MS and is obtained service IP address, MS does not need to obtain service IP address, in this case, mobile terminal IP address agent unit is after obtaining service IP address, can trigger the MIP client and initiate the MIP registration process, because not being required to be MS, the embodiment of the invention do not obtain service IP address foundation again, deletion or modification occasional service stream, therefore, the embodiment of the invention has reduced registration process and the influence of the time coupling of obtaining service IP address to business foundation to a certain extent, has shortened the time of professional foundation.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (11)
1. method of acting on behalf of communication of mobile terminal based on the WiMAX network architecture is characterized in that comprising:
Access service network ASN is the privately owned address that portable terminal distributes use when communicating by letter with ASN, and acts on behalf of mobile terminal to obtain business IP address;
ASN transmits the IP message of portable terminal transmitting-receiving by the conversion between the service IP address that carries out described privately owned address and described portable terminal.
2. the method for acting on behalf of communication of mobile terminal based on the WiMAX network architecture as claimed in claim 1 is characterized in that: described privately owned address is attachment point address PoA.
3. the method for acting on behalf of communication of mobile terminal based on the WiMAX network architecture as claimed in claim 1 is characterized in that: described service IP address is the home address HoA of portable terminal.
4. the method for acting on behalf of communication of mobile terminal based on the WiMAX network architecture as claimed in claim 1 is characterized in that the mode of acting on behalf of mobile terminal to obtain business IP address is: dynamic host configuration protocol DHCP mode or checking, mandate, charging AAA mode.
5. as claim 1, the 2 or 3 described methods of acting on behalf of communication of mobile terminal, it is characterized in that the process that ASN carries out the conversion between the service IP address of described privately owned address and described portable terminal is realized by following step based on the WiMAX network architecture:
If ASN receives the IP message that portable terminal sends, then the source address in the IP message is converted to service IP address by privately owned address;
If ASN receives the IP message that is sent to portable terminal, then the destination address in the IP message is converted to privately owned address by service IP address.
6. the access service network ASN based on the WiMAX network architecture comprises R6 interface data channel function unit and external agent's unit F A, it is characterized in that also comprising:
Mobile terminal IP address agent unit, be arranged between R6 interface data channel function unit and the FA, be used to carry out the conversion between the service IP address of privately owned address and portable terminal, transmit the IP message of portable terminal transmitting-receiving, wherein, described privately owned address be described mobile terminal IP address agent unit be portable terminal distribute communicating by letter with ASN the time address of using, service IP address is that described mobile terminal IP address agent unit is acted on behalf of the address that portable terminal obtains.
7. the access service network ASN based on the WiMAX network architecture as claimed in claim 6 is characterized in that: described privately owned address is attachment point address PoA.
8. the access service network ASN based on the WiMAX network architecture as claimed in claim 6 is characterized in that: described service IP address is the home address HoA of portable terminal.
9. the access service network ASN based on the WiMAX network architecture as claimed in claim 6 is characterized in that described mobile terminal IP address agent unit acts on behalf of the mode of mobile terminal to obtain business IP address and be: dynamic host configuration protocol DHCP mode or checking, mandate, charging AAA mode.
10. as claim 6,7,8 or 9 described access service network ASN, it is characterized in that the process that described mobile terminal IP address agent unit carries out the conversion between the service IP address of described privately owned address and described portable terminal is realized by following step based on the WiMAX network architecture:
If described mobile terminal IP address agent unit receives the IP message that portable terminal sends, then the source address in the IP message is converted to service IP address by privately owned address;
If described mobile terminal IP address agent unit receives the IP message that is sent to portable terminal, then the destination address in the IP message is converted to privately owned address by service IP address.
11. a WiMAX network architecture comprises portable terminal, access service network ASN and connectivity serving network CSN, it is characterized in that:
Described ASN comprises mobile terminal IP address agent unit, be used to carry out the conversion between the service IP address of privately owned address and portable terminal, transmit the IP message between portable terminal and the network, wherein, described privately owned address be described mobile terminal IP address agent unit be portable terminal distribute communicating by letter with ASN the time address of using, described service IP address is acted on behalf of the address that portable terminal obtains by described mobile terminal IP address agent unit.
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| CN101420792B (en) * | 2007-10-23 | 2010-07-07 | 华为技术有限公司 | Gateway anchor point distributing method, network side device and user terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101420792B (en) * | 2007-10-23 | 2010-07-07 | 华为技术有限公司 | Gateway anchor point distributing method, network side device and user terminal |
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