CN102223618A - Terminal access method and system - Google Patents
Terminal access method and system Download PDFInfo
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- CN102223618A CN102223618A CN201010148695XA CN201010148695A CN102223618A CN 102223618 A CN102223618 A CN 102223618A CN 201010148695X A CN201010148695X A CN 201010148695XA CN 201010148695 A CN201010148695 A CN 201010148695A CN 102223618 A CN102223618 A CN 102223618A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
Abstract
The invention discloses a terminal access method and system for a code division multiple access (CDMA) mobile communication system, so as to enable a PDSN (packet data serving node) to determine an access mode of a terminal and build IP (internet protocol) connection and/or PCC (policy and charging control) conversation for the terminal according to the access mode of the terminal, so as to carry out access of the terminal to a network. The method comprises the following steps: the terminal and the PDSN determine the access mode of the terminal through consultation; the PDSN initiates IP connection building flow, and /or PCC conversation building flow for the terminal according to the access mode of the terminal which is determined through the consultation.
Description
Technical field
The present invention relates to communication technical field, more specifically, relate to a kind of terminal access method and system.
Background technology
3GPP2 (3rd Generation Partnership Project2, third generation partner program 2) Ding Yi CDMA (Code Division Multiple Access, code division multiple access) 20001x and HRPD (HighRate Packet Data, HRPD (high rate packet data)) network architecture, mainly by MS/AT (MobileStation/Access Terminal, mobile radio station/access terminal, perhaps be called for short terminal), RAN (RadioAccess Network, Radio Access Network), PDSN (Packet Data Serving Node, packet data serving node), HA/LMA (Home Agent/Local Mobility Anchor, home agent/local mobile anchor), RADIUS/AAA (Remote Authentication Dial In UserService/Authentication Authorization Accounting, remote customer dialing authentication system/authentication and authorization charging server) and other core network devices and support node are formed.
Fig. 1 and Fig. 2 have provided the network architecture model of CDMA1x and HRPD PDS (Packet Data Service, Packet data service), as depicted in figs. 1 and 2:
MS/AT realizes being connected with RAN by wave point.RAN comprises BS (Base Station, base station) and PCF (Packet Control Function, Packet Control Function), and wherein BS is mainly used in the sub-district and sets up wireless coverage, and the air interface of Packet data service is provided for terminal equipment; PCF is mainly used in the control wireless network resource, transmits data and signaling between BS and the PDSN.
PDSN is that terminal equipment is provided to Internet or carrier network reaches the access of arriving application server or arriving HA/LMA by Radio Access Network RAN, its effect is to set up, safeguard PPP (Point to Point Protocol, the peer-peer protocol) session between MS/AT and the PDSN; Accept and carry out of the authentication of RADIUS/AAA server to MS/AT; Route from packet that mails to packet data network or HA/LMA etc.
HA/LMA is responsible under the mobile IP scene, for the terminal distribution home address, transmit the tunnel encapsulation of uplink and downlink packet, packet etc., wherein mobile IP comprises CMIPv4/v6 (ClientMobile IPversion 4/version 6, client mobile IP edition 4 or version 6) and PMIPv4/v6 (Proxy MobileIPv4/v6, proxy-mobile IP edition 4 or version 6).
AAA (being called RADIUS again) server is an authentication and authorization charging server, and it mainly acts on is which user of management can accesses network, and which service the user with access right can obtain, and how the user who uses Internet resources is chargeed.
Terminal can insert by multiple access module when inserting cdma system, specifically comprises SIPv4/v6 (Simple IPv4/v6, simple IP v4/v6), PMIPv4/v6, six kinds of patterns of CMIPv4/v6.Under different access modules, it is different with the role that network side related network elements (as PDSN and LMA/HA) is connected the function that the process of foundation and PCC (Policy and Charging Control, strategy and charge and control) session sets up in the process at IP.Wherein the IP establishment of connection is meant that terminal obtains network and is its IP address allocated, thereby can visit the operation of Internet or Operator Specific Service net; The PCC technology is meant a kind of control technology that cdma network adopts, by reasonable distribution and the control of this technology realization to resource and charging.
The IP connection is set up in the process, the function of each network element and the different of role are embodied in: 1) when terminal inserts by SIPv4/v6, described PDSN is terminal distribution IP address as the anchor point network element, and terminal is directly by PDSN visit Internet or Operator Specific Service net; 2) when terminal inserts by CMIPv4, PDSN is as FA (Foreign Agent, Foreign Agent), be terminal distribution or configuration CoA (Care of Address, Care-of Address), and at the RRQ (RegistrationRequest that receives that terminal sends, register requirement) after the message, it is transmitted this message give HA/LMA, request HA/LMA is terminal distribution HoA (Home of Address, home address), thus terminal is connected to HA/LMA visit Internet or Operator Specific Service net by PDSN; 3) when terminal inserts by CMIPv6, PDSN is as FA, be terminal distribution CoA (Care of Address, Care-of Address), and transmit that terminal sends BU (Binding update, Binding Update) give HA/LMA, request HA/LMA is terminal distribution HoA (Home of Address, home address), thus terminal is connected to HA/LMA visit Internet or Operator Specific Service net by PDSN; 4) when terminal inserts by PMIPv4, PDSN is as access server, send PRRQ (Proxy RegistrationRequest to HA/LMA, proxy registration request) message, request HA/LMA is the terminal distribution address, thereby terminal is connected to HA/LMA visit Internet or Operator Specific Service net by PDSN; 5) when terminal inserts by PMIPv6, PDSN is as MAG (Mobile Access Gateway, Mobile Access Gateway), be terminal distribution/configuration P-CoA (Proxy CoA, act on behalf of Care-of Address), and to HA/LMA transmission PBU (Proxy Binding update, agent binding update) message, request HA/LMA is the terminal distribution address, thereby terminal is connected to HA/LMA visit Internet or Operator Specific Service net by PDSN.
The PCC session is set up in the process, when terminal inserts by SIPv4/v6, PDSN carries out PCEF (Policy Control Enforcement Function, policy control execution entity) function, there is not HA/LMA in the network, no BBERF (Bearer Binding and Event Trigger ReportFunction, bearing binding and reporting events entity), PDSN/PCEF and PCRF (Policy ControlRule Function, policy control rule entity) sets up IP-CAN (IP-ConnectivityAccess Network by the Gx interface, IP connects access network) session, and the relevant policy information of transmission, as shown in Figure 1.When terminal inserts by PMIPv4/v6, CMIPv4/v6, PDSN carries out the BBERF function, HA/LMA carries out the function of PCEF, PDSN sets up gateway control session by Gxa interface and PCRF, and the relevant policy information of intercommunication, HA/LMA sets up the IP-CAN session by Gx mouth and PCRF, and the relevant policy information of intercommunication, as shown in Figure 2.
Be example with SIPv6 and CMIPv6 terminal below, illustrate under different access modules that each network element serves as the role and carries out the concrete different of function in adopting the PCC technology, and draws potential problem.
Fig. 1 and Fig. 3, be respectively that terminal is passed through SIPv6 pattern access CDMA 1x/HRPD system, and set up the Organization Chart and the flow chart of PCC session, wherein the PCC session comprises IP-CAN (IP-Connectivity Access Network, IP connects access network) session and/or gateway control session, as shown in Figure 3, this flow process specifically describes as follows:
Step 1.MS/AT is connected foundation by carrying out main business between RAN/PCF and the PDSN;
The LCP (Link Control Protocol, LCP) that step 2.MS/AT and PDSN carry out the PPP session consults and selected authentication mode;
Step 3.PDSN finishes user's access authentication and mandate by authentication mode selected in the step 2 alternately with AAA;
The authentication signaling that wherein MS/AT is relevant with the PDSN intercommunication, PDSN and AAA are also by inserting request and inserting and reply the associative operation of carrying out authentication; After the authentication/authorize successfully, relevant signatory QoS information will send to PDSN from AAA.
Step 4.PDSN sends to RAN with signatory QoS (Quality of Service, service quality) parameter;
Step 5.MS/AT and PDSN carry out IPv6CP (IP Version 6 Control Protocol, IP version 6 control protocols) negotiation step;
After this step, also HL (Home Link, home link) prefix can be sent to MS/AT in the IPv6 routing broadcast step, MS/AT generates unicast address according to this prefix, and this operation is not drawn in the drawings.
Step 6.PDSN sends the IP-CAN session to PCRF and sets up request message as PCEF, sets up process for this MS/AT initiates the IP-CAN session;
Wherein, PDSN/PCEF sets up in the IP-CAN session and has carried the IP-CAN type in the request message, terminal iidentification, PDN (Packet Data Network, packet data network) sign, information such as IP address of terminal.
Interface between PDSN and the PCRF adopts the Gx mouth.
Step 7.PCRF sends the IP-CAN session and sets up response message to PDSN/PCEF, and PCRF sets up response message by this IP-CAN session and provides PCC rule and incident option etc. to PCEF.
Fig. 2 and Fig. 4 are respectively MS/AT and insert by CMIPv6 and set up the Organization Chart and the flow chart of PCC session, and as shown in Figure 4, these flow process concrete steps are described below:
Step 1. main business connects to be set up;
The LCP of step 2.PPP session consults and selectes authentication mode;
Step 3. is finished user's access authentication and mandate by authentication mode selected in the step 2;
Step 4.PDSN sends to RAN with signatory qos parameter;
Step 5.MS/AT and PDSN carry out the IPv6CP negotiation step;
Wherein, above-mentioned steps 1-5 is identical with preceding 5 steps among Fig. 2.
Step 6.PDSN sets up request as BBERF for this MS/AT initiates gateway control session to PCRF;
Wherein PDSN/BBERF sets up in gateway control session and has carried conversation type in the request message, terminal iidentification, PDN sign, information such as IP address of terminal.Interface between PDSN and the PCRF adopts the Gxa mouth.
Step 7.PCRF sends the IP-CAN session and sets up response message to PDSN/BBERF;
Step 8.MS/AT sends the CMIPv6 Binding Update to selected HA/LMA, the binding of request and HA/LMA;
Step 9.HA/LMA and AAA intercommunication authentication signaling are finished authentication and mandate that the user is inserted by CMIPv6;
Step 10.HA/LMA initiates the IP-CAN session as PCEF to PCRF and sets up request;
Step 11.PCRF sends IP-CAN session foundation to HA/LMA/PCEF and replys, and has finished the foundation of IP-CAN session, and has downloaded relevant PCC strategy to HA/LMA/PCEF;
Step 12.HA/LMA sends CMIPv6 binding response message to MS/AT, and MS/AT has finished the access by the CMIPv6 mode.
Analyze above-mentioned two flow processs (corresponding diagram 3 and Fig. 4), MS/AT inserts by SIPv6 and CMIPv6 when inserting, and the operation that preceding 1-5 goes on foot all is identical, without any difference.But the follow-up operation of PDSN is distinguishing under two kinds of situations, and PDSN is different with the session of PCRF foundation and the interface of employing.Therefore, PDSN need be before initiating to set up PCC session operation selects function and the role of oneself according to the access way of MS/AT, still, and according to prior art, PDSN can't determine which kind of access way is terminal be based on, and promptly can't distinguish and know that it still is that CMIPv6 inserts that SIPv6 inserts.
In addition, PDSN sets up in the process of IP connection in terminal, need be at the different situations of these six kinds of access modules, and adopting different strategies and method to conclude oneself is as FA or MAG or anchor gateway or access server, and the existing numerous and diverse confusion of method is unified inadequately.
Summary of the invention
The present invention will provide a kind of terminal access method and system, makes the access module that PDSN can clear and definite terminal, and is that terminal is set up IP and connected and/or the PCC session according to the access module of terminal, finishes the access of terminal to network.
In order to address the above problem, the invention provides a kind of terminal access method, be used for code division multiple access (CDMA) mobile communication system, described method comprises:
Terminal and packet data serving node (PDSN) are determined " access module " of terminal through consultation;
Described PDSN initiates IP connection building process and/or strategy according to " access module " of the described terminal of consulting to determine for this terminal and flow process is set up in control (PCC) session of chargeing.
Further, described terminal and described PDSN consult to determine " access module " of terminal in the following manner:
Described terminal is selected " access module ", and " access module " that will select is notified to described PDSN;
Described PDSN is defined as " access module " of described terminal with it after receiving " access module " of described terminal notice.
Further, described terminal and described PDSN consult to determine " access module " of terminal in the following manner:
" access module " that described terminal will be supported sends to described PDSN;
Described PDSN resolves " access module " that the described terminal of receiving sends, if only comprise a kind of " access module ", then determines " access module " to be " access module " of described terminal; If comprise multiple " access module ", then from described multiple " access module ", select one " access module " to be defined as " access module " of described terminal;
After described PDSN determines described terminal " access module ", " access module " of the described terminal determined is notified to described terminal.
Further, LCP (LCP) configuration request message or IP control protocol (IPCP) configuration request message described " access module " that will select of described terminal when setting up peer-peer protocol (PPP) session with described PDSN is notified to described PDSN.
Further, LCP configuration request message or the IPCP configuration request message " access module " that will support of described terminal when setting up the PPP session with described PDSN sends to described PDSN;
After " access module " that described PDSN determines described terminal according to the described LCP configuration request message of receiving or IPCP configuration request message, " access module " of the described terminal determined is notified to described terminal by LCP configuration response message or IPCP configuration response message.
Further, " access module " of described terminal comprises: simple IP (SIP) v4, SIPv6, client mobile IP (CMIP) v4, CMIPv6, proxy-mobile IP (PMIP) v4, PMIPv6;
Described PDSN initiates the IP connection building process according to " access module " of the described terminal of consulting to determine for this terminal and specifically comprises:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv4v6, described PDSN was terminal distribution IP address as the anchor point network element;
When " access module " of the described terminal of consulting to determine was CMIPv4 or CMIPv6, described PDSN was terminal distribution or co-located care-of address as Foreign Agent;
When " access module " of the described terminal of consulting to determine was PMIPv4, PDSN sent proxy registration request message as access server to home agent (HA)/local mobile anchor (LMA), and asking described HA/LMA is the terminal distribution address;
When " access module " of the terminal of consulting to determine was PMIPv6, PDSN sent agent binding update messages as Mobile Access Gateway to HA/LMA, and request HA/LMA is the terminal distribution address.
Further, " access module " of described terminal comprises: simple SIPv4, SIPv6, CMIPv4, CMIPv6, PMIPv4, PMIPv6;
Described PDSN sets up flow process according to " access module " of the described terminal of consulting to determine for this terminal initiation PCC session and specifically comprises:
When " access module " of the described terminal of consulting to determine is SIPv4 or SIPv6, described PDSN carries out entity (PCEF) as policy control, initiates to set up IP for described terminal to policy control rule entity (PCRF) and connects access network (IP-CAN) conversation request;
When " access module " of the described terminal of consult determining be CMIPv4, CMIPv6, PMIPv4 or PMIPv6, described PDSN was as bearing binding and reporting events entity (BBERF), for described terminal is set up the gateway control session request to the PCRF initiation.
Further, described " access module " realized by terminal capability option or new addition option in the described LCP configuration request message of expansion or IPCP configuration request message or LCP configuration response message or the IPCP configuration response message.
The present invention also provides a kind of terminal connecting system, comprising: terminal and PDSN, and wherein said terminal further comprises the first mode negotiation module, described PDSN comprises that further the second mode negotiation module and session set up module, wherein
Described second mode negotiation module and the described first mode negotiation module are used for determining through consultation " access module " of terminal;
Described session is set up module and is used for setting up flow process according to " access module " of the described terminal of consult determining for this terminal initiation IP connection building process and/or PCC session.
Further, the described first mode negotiation module is used for, and select " access module " of terminal, and " access module " that will select is notified to the described second mode negotiation module;
The described second mode negotiation module is used for, receive " access module " of described terminal notice after, it is defined as " access module " of described terminal.
Further, the described first mode negotiation module is used for, and " access module " that described terminal is supported sends to the described second mode negotiation module;
The described second mode negotiation module is used for, and " access module " that the described terminal of receiving sends resolved, if only comprise a kind of " access module ", then determines " access module " to be " access module " of described terminal; If comprise multiple " access module ", then from described multiple " access module ", select one " access module " to be defined as " access module " of described terminal.
Further, the described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message will be selected is notified to the described second mode negotiation module.
Further, the described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message are supported described terminal sends to the described second mode negotiation module;
The described second mode negotiation module is used for, behind " access module " of determining described terminal according to the described LCP configuration request message of receiving or IPCP configuration request message, " access module " of the described terminal determined is notified to the described first mode negotiation module by LCP configuration response message or IPCP configuration response message.
Further, described session is set up module and is specifically comprised for this terminal initiation IP connection building process according to " access module " of the described terminal of consult determining:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv4v6, described PDSN was terminal distribution IP address as the anchor point network element;
When " access module " of the described terminal of consulting to determine was CMIPv4 or CMIPv6, described PDSN was terminal distribution or co-located care-of address as Foreign Agent;
When " access module " of the described terminal of consulting to determine was PMIPv4, PDSN sent proxy registration request message as access server to HA/LMA, and asking described HA/LMA is the terminal distribution address;
When " access module " of the terminal of consulting to determine was PMIPv6, PDSN sent agent binding update messages as Mobile Access Gateway to HA/LMA, and request HA/LMA is the terminal distribution address.
Further, described session is set up module and is set up flow process according to " access module " of the described terminal of consult determining for this terminal initiation PCC session and specifically comprise:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv6, described PDSN was as PCEF, for described terminal initiates to set up the IP-CAN conversation request to PCRF;
When " access module " of the described terminal of consult determining be CMIPv4, CMIPv6, PMIPv4 or PMIPv6, described PDSN was as BBERF, for described terminal is set up the gateway control session request to the PCRF initiation.
Description of drawings
Fig. 1 is the Organization Chart that inserts HRPD/1x according to the MS/AT of prior art by the SIPv6 pattern;
Fig. 2 is the Organization Chart that inserts HRPD/1x according to the MS/AT of prior art by the CMIPv6 pattern;
Fig. 3 inserts the HRPD/1x system and sets up the flow chart of PCC session by the SIPv6 pattern according to the MS/AT of prior art;
Fig. 4 inserts the HRPD/1x system and sets up the flow chart of PCC session by the CMIPv6 pattern according to the MS/AT of prior art;
Fig. 5 is the method flow schematic diagram of the embodiment of the invention one;
Fig. 6 is the method flow schematic diagram of the embodiment of the invention two;
Fig. 7 is the method flow schematic diagram of the embodiment of the invention three.
Embodiment
Basic thought of the present invention is that terminal is determined " access module " of terminal through consultation when setting up the PPP session with PDSN; PDSN is according to own function and the role of " access module " decision who consult to determine, and sets up flow process for this terminal initiation IP connection building process and/or PCC session.
Based on above-mentioned basic thought, the present invention by the following technical solutions:
Scheme one, terminal is selected " access module ", and " access module " that will select is notified to PDSN; After PDSN receives described notice, determine " access module " to be " access module " of described terminal.
Scheme two, all " access modules " that terminal is supported terminal send to PDSN, and PDSN is " access module " of selected terminal therefrom, and " access module " that will select is notified to terminal.
Wherein, can comprise the opportunity of negotiation the PPP session in setting up with the next stage:
A) in the LCP stage, terminal and PDSN consult " access module "
Terminal sends to PDSN by the LCP configuration request message with " access module "; Perhaps terminal sends to PDSN by the LCP configuration request message with terminal all possible " access module ", and " access module " that PDSN will select in LCP configuration response message returns to terminal.
B) at ipcp phase, terminal and PDSN consult " access module "
Terminal sends to PDSN by the IPCP configuration request message with " access module "; Perhaps terminal sends to PDSN by the IPCP configuration request message with terminal all possible " access module ", and " access module " that PDSN will select in IPCP configuration response message returns to terminal.
Wherein, " access module " comprising: SIPv4/v6, PMIP v4/v6 or CMIP v4/v6.
Further, " access module " realized by the existing terminal capability (MS/AT-capability) or the new addition option of expansion LCP agreement;
Perhaps, realize by the existing MS/AT-capability or the new addition option of expansion IPCP agreement.
Wherein, described IPCP agreement comprises IPv4CP, IPv6CP or VSNCP (Vendor-SpecificNetwork Control Protocol, vendor specific Network Control Protocol).
Further, PDSN when carrying out ipcp negotiation, determines its role and function according to " access module " of selected terminal, specifically comprises:
If the SIPv4/v6 situation, PDSN is MS/AT distributing IP address as the anchor point network element, and the location role is PCEF;
If the CMIP situation, then PDSN location role is BBERF, and:
I. if CMIPv4, PDSN is as FA (Foreign Agent, Foreign Agent) function, be terminal distribution/configuration CoA (Care of Address, Care-of Address), and after receiving RRQ (Registration Request, the register requirement) message that terminal sends, PDSN and PCRF set up gateway control session;
Ii. if CMIPv6, PDSN is that MS/AT distributes CoA (Care of Address, Care-of Address), sets up gateway control session with PCRF;
If the PMIPv6 situation, PDSN is as MAG (Mobile Access Gateway, Mobile Access Gateway), and the location role is BBERF, sets up gateway control session with PCRF.
If the PMIPv4 situation, PDSN location role is BBERF, sets up gateway control session with PCRF.
Describe in further detail below with reference to the enforcement of drawings and the specific embodiments technical solution of the present invention.
Embodiment one
In the present embodiment, referring to Fig. 5, after PDSN receives that the IPv6CP of " access module " of the carried terminal needs that MS/AT sends consults request, PDSN parses " access module ", if SIPv6, then PDSN is MS/AT distributing IP address as the anchor point network element, simultaneously as PCEF, sets up the IP-CAN session with PCRF; If PMIPv6, then PDSN is terminal distribution/configuration P-CoA as MAG (Mobile AccessGateway, Mobile Access Gateway), simultaneously as BBERF, sets up gateway control session with PCRF; If CMIPv6, PDSN is terminal distribution CoA as FA, simultaneously as BBERF, and sets up gateway control session with PCRF.
As shown in Figure 5, the concrete steps of present embodiment flow process are described below:
Step 1-4. describes with the step among Fig. 2 and Fig. 4, does not repeat them here.
Step 5.MS/AT and PDSN carry out the IPv6CP negotiations process, and this negotiations process further comprises:
5a. terminal is selected " access module ", and " access module " that will select is encapsulated in the IPv6CP configuration request message;
For example, can in " access module " IPv6CP configuration request message, encapsulate " access module " indication information;
5b.MS/AT send the IPv6CP configuration request message to PDSN, comprise " access module " indication information of terminal needs in this IPv6CP configuration request message;
Wherein, should can realize by existing terminal capability option in the expansion IPv6CP configuration request message by " access module " indication information, also can increase new option and realize.
Specific implementation can be by certain several bit is set, and comes by defining different values that distinguishing terminal will pass through the SIPv6 pattern, still the PMIPv6 pattern still be the access of CMIPv6 pattern.
5c-5e.MS/AT and PDSN finishes the IPv6CP negotiation;
After this step, also can send to MS/AT to the HL prefix in the IPv6 routing broadcast step, MS/AT generates unicast address according to this prefix, and this step does not draw in the drawings.
5f.PDSN judge current role and function according to " access module " indication that MS/AT sends, if " access module " that MS/AT sends is SIPv6, PDSN location anchor point network element is MS/AT distributing IP address, and as the PCEF in the PCC technology; If the situation of CMIPv6, PDSN orientates FA as, is terminal distribution CoA, simultaneously as the BBERF in the PCC technology; If the PMIPv6 situation, PDSN locatees MAG, for terminal distribution/configuration P-CoA and as the BBERF in the PCC technology.
Step 6. is according to the selected role of 5f step PDSN, and PDSN can make different behavior operations in subsequent P CC technology, be specially:
If 6a. " access module " of terminal is SIPv6, then PDSN location role is PCEF, initiates the IP-CAN session to PCRF and set up flow process; Other subsequent operations are referring to the 6-7 step of Fig. 3.
If 6b. " access module " of terminal is PMIPv6 or CMIPv6, then PDSN location role is BBERF, initiate to set up flow process, referring to the 6-7 step of Fig. 4 with the gateway control session of PCRF; Other subsequent operations are carried out according to the access process of PMIPv6 or CMIPv6, and subsequent operation can be referring to the 8-12 step of Fig. 4.
In the foregoing description, when PDSN decides self function and role according to " access module ", also can be according to factors such as self-ability, terminal capability, CAMEL-Subscription-Information, if find that MS/AT does not support this access module, perhaps signatory with this MS/AT and mandate does not conflict, and then returns " access module " to terminal and consults failure response message.
Embodiment two
In the present embodiment, referring to Fig. 6, IAD PDSN receives that the IPv6CP that terminal MS/AT sends consults request, PDSN consults to parse the request " access module " indication from IP v6CP, wherein this indication may be a final election item, promptly indicated the terminal may be with any access in multiple " access module ", then PDSN therefrom selects a kind of " access module " " access module " as terminal, and " access module " that will select offers terminal by follow-up signaling.If SIPv6, then PDSN is MS/AT distributing IP address as the anchor point network element, simultaneously as PCEF, sets up the IP-CAN session with PCRF; If PMIPv6, then PDSN is terminal distribution/configuration P-CoA as MAG (Mobile Access Gateway, Mobile Access Gateway), simultaneously as BBERF, sets up gateway control session with PCRF; If CMIPv6, PDSN is terminal distribution CoA as FA, simultaneously as BBERF, and sets up gateway control session with PCRF.
As shown in Figure 6, the present embodiment process step is described below:
Step 1-4. does not repeat them here with embodiment one.
Step 5.MS/AT and PDSN carry out the IPv6CP negotiation step.
Also can send to MS/AT to the HL prefix in the IPv6 routing broadcast step, MS/AT generates unicast address according to this prefix, and this step does not draw in the drawings.
5a.MS/AT terminal all possible " access module " is encapsulated in the IPv6CP message, and the step by the back sends to PDSN;
Send to PDSN 5b. carried the IPv6CP configuration request message of terminal all possible " access module " by MS/AT;
Wherein, should " access module " indication can realize, also can increase new option and realize by existing terminal capability option in the expansion IPv6CP configuration request message.
Specific implementation can be by certain several bit is set, and comes by defining different values that distinguishing terminal will pass through the SIPv6 pattern, still the PMIPv6 pattern still be the access of CMIPv6 pattern.
5c.PDSN from institute's possible " access module " that MS/AT sends, select a certain " access module ", and give terminal by IPv6CP configuration answer notification; If only comprise a kind of " access module ", then determine " access module " to be " access module " of terminal, also give terminal by IPv6CP configuration answer notification;
5d-5e.MS/AT and PDSN finishes follow-up IPv6CP negotiation;
5f.PDSN judge current role and function according to selected " access module ", if the SIPv6 situation, PDSN location anchor point network element is MS/AT distributing IP address, and as the PCEF in the PCC technology; If the situation of CMIPv6, PDSN orientates FA as, is terminal distribution CoA, simultaneously as the BBERF in the PCC technology; If the PMIPv6 situation, PDSN locatees MAG, for terminal distribution/configuration P-CoA and as the BBERF in the PCC technology.
Step 6. does not repeat them here with embodiment one.
Embodiment three
In the present embodiment, referring to Fig. 7, IAD PDSN and MS/AT are at LCP negotiation phase selected " access module ".Wherein the selection of this access module can be passed through following dual mode:
Mode one, terminal sends " access module " that need by the LCP configuration request message and gives PDSN;
Mode two, terminal sends to PDSN with all possible " access module " by the LCP configuration request message, and selected a kind of by PDSN, and announces to terminal by LCP configuration response message.
PDSN judges current role and function according to " access module " selected, if selected " access module " is SIPv6, PDSN location anchor point network element is MS/AT distributing IP address, and, set up the IP-CAN session with PCRF as the PCEF in the PCC technology; If the situation of CMIPv6, PDSN orientates FA as, is terminal distribution CoA, sets up gateway control session as the BBERF in the PCC technology with PCRF simultaneously; Or the PMIPv6 situation, PDSN locatees MAG, sets up gateway control session for terminal distribution/configuration P-CoA and as BBERF in the PCC technology and PCRF.
As shown in Figure 7, the present embodiment process step is described below:
Step 1. main business connects to be set up;
The LCP of step 2.PPP session consults.Owing to consult " access module " two kinds of selections are arranged, divide the description of coming below:
Mode one
2a.MS/AT " access module " that terminal MS/AT is needed is encapsulated in the LCP configuration request message.
2b.MS/AT with the LCP of PDSN consult mutual in, " access module " that need by LCP configuration request message carried terminal sends to PDSN from MS/AT.
Wherein, should " access module " indication can realize, also can increase new option and realize by existing terminal capability option in the expansion LCP configuration request message.
Specific implementation can be by certain several bit is set, and comes by defining different values that distinguishing terminal will pass through the SIPv6 pattern, still the PMIPv6 pattern still be the access of CMIPv6 pattern.
Mode two:
2a.MS/AT terminal all possible " access module " is encapsulated in the LCP configuration request message.
Send to PDSN 2b. carried the LCP configuration request message of terminal all possible " access module " by MS/AT; PDSN selects a certain " access module " from institute's possible " access module " that MS/AT sends, and replys announcement by the LCP configuration and give terminal.
Wherein, should " access module " indication can realize, also can increase new option and realize by existing terminal capability option in the expansion IPv6CP configuration request message.
Specific implementation can be by certain several bit is set, and comes by defining different values that distinguishing terminal will pass through the SIPv6 pattern, still the PMIPv6 pattern still be the access of CMIPv6 pattern.
Step 3. is finished user's access authentication and mandate by 2b selected authentication mode of step.The authentication signaling that wherein MS/AT is relevant with the PDSN intercommunication, PDSN and AAA are also by inserting request and inserting and reply the associative operation of carrying out authentication.After the authentication/authorize successfully, relevant signatory QoS information will send to PDSN from AAA.
Step 4.PDSN sends to RAN with signatory qos parameter.
Step 5.MS/AT and PDSN carry out the IPv6CP negotiation step.
Also can send to MS/AT to the HL prefix in the IPv6 routing broadcast step, MS/AT generates unicast address according to this prefix, and this step does not draw in the drawings.
5a.PDSN judge current role and function according to selected " access module ", if " access module " is SIPv6, PDSN location anchor point network element is MS/AT distributing IP address, and as the PCEF in the PCC technology, sets up the IP-CAN session with PCRF; If the situation of CMIPv6, PDSN orientates FA as, is terminal distribution CoA, sets up gateway control session as the BBERF in the PCC technology with PCRF simultaneously; If the PMIPv6 situation, PDSN locatees MAG, sets up gateway control session for terminal distribution/configuration P-CoA and as BBERF in the PCC technology and PCRF.
Step 6. is with embodiment one.
Need to prove, all be that situation at IPv6 is described in the foregoing description, scene for IPv4, also there are LCP and IPv4CP stage, therefore, the scheme that provides among the above embodiment, also can use under the IPv4 scene, be that terminal and PDSN consult " access module " at LCP or IPv4CP stage, and the negotiation of " access module " can send to PDSN by terminal is selected, also can all possible " access module " be sent to PDSN by terminal, feeds back to terminal again after being selected by PDSN, its concrete enforcement is similar with the situation of above-mentioned IP v6, repeats no more herein.
In addition, the present invention also provides a kind of terminal connecting system (not shown), comprising: terminal and PDSN, and described terminal further comprises the first mode negotiation module, described PDSN comprises that further the second mode negotiation module and session set up module, wherein:
Described second mode negotiation module and the described first mode negotiation module are used for determining through consultation " access module " of terminal;
Described session is set up module and is used for setting up flow process according to " access module " of the described terminal of consult determining for this terminal initiation IP connection building process and/or PCC session.
Further, the described first mode negotiation module is used for, and select " access module " of terminal, and " access module " that will select is notified to the described second mode negotiation module;
The described second mode negotiation module is used for, receive " access module " of described terminal notice after, it is defined as " access module " of described terminal.
Further, the described first mode negotiation module is used for, and " access module " that described terminal is supported sends to the described second mode negotiation module;
The described second mode negotiation module is used for, and " access module " that the described terminal of receiving sends resolved, if only comprise a kind of " access module ", then determines " access module " to be " access module " of described terminal; If comprise multiple " access module ", then from described multiple " access module ", select one " access module " to be defined as " access module " of described terminal.
Further, the described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message will be selected is notified to the described second mode negotiation module.
Further, the described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message are supported described terminal sends to the described second mode negotiation module;
The described second mode negotiation module is used for, behind " access module " of determining described terminal according to the described LCP configuration request message of receiving or IPCP configuration request message, " access module " of the described terminal determined is notified to the described first mode negotiation module by LCP configuration response message or IPCP configuration response message.
Further, described session is set up module and is specifically comprised for this terminal initiation IP connection building process according to " access module " of the described terminal of consult determining:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv4v6, described PDSN was terminal distribution IP address as the anchor point network element;
When " access module " of the described terminal of consulting to determine was CMIPv4 or CMIPv6, described PDSN was terminal distribution or co-located care-of address as Foreign Agent;
When " access module " of the described terminal of consulting to determine was PMIPv4, PDSN sent proxy registration request message as access server to HA/LMA, and asking described HA/LMA is the terminal distribution address;
When " access module " of the terminal of consulting to determine was PMIPv6, PDSN sent agent binding update messages as Mobile Access Gateway to HA/LMA, and request HA/LMA is the terminal distribution address.
Further, described session is set up module and is set up flow process according to " access module " of the described terminal of consult determining for this terminal initiation PCC session and specifically comprise:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv6, described PDSN was as PCEF, for described terminal initiates to set up the IP-CAN conversation request to PCRF;
When " access module " of the described terminal of consult determining be CMIPv4, CMIPv6, PMIPv4 or PMIPv6, described PDSN was as BBERF, for described terminal is set up the gateway control session request to the PCRF initiation.
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 (15)
1. a terminal access method is characterized in that, is used for code division multiple access (CDMA) mobile communication system, and described method comprises:
Terminal and packet data serving node (PDSN) are determined " access module " of terminal through consultation;
Described PDSN initiates IP connection building process and/or strategy according to " access module " of the described terminal of consulting to determine for this terminal and flow process is set up in control (PCC) session of chargeing.
2. the method for claim 1 is characterized in that, described terminal and described PDSN consult to determine " access module " of terminal in the following manner:
Described terminal is selected " access module ", and " access module " that will select is notified to described PDSN;
Described PDSN is defined as " access module " of described terminal with it after receiving " access module " of described terminal notice.
3. the method for claim 1 is characterized in that, described terminal and described PDSN consult to determine " access module " of terminal in the following manner:
" access module " that described terminal will be supported sends to described PDSN;
Described PDSN resolves " access module " that the described terminal of receiving sends, if only comprise a kind of " access module ", then determines " access module " to be " access module " of described terminal; If comprise multiple " access module ", then from described multiple " access module ", select one " access module " to be defined as " access module " of described terminal;
After described PDSN determines described terminal " access module ", " access module " of the described terminal determined is notified to described terminal.
4. method as claimed in claim 2 is characterized in that,
LCP (LCP) configuration request message or IP control protocol (IPCP) configuration request message described " access module " that will select of described terminal when setting up peer-peer protocol (PPP) session with described PDSN is notified to described PDSN.
5. method as claimed in claim 3 is characterized in that,
LCP configuration request message or the IPCP configuration request message " access module " that will support of described terminal when setting up the PPP session with described PDSN sends to described PDSN;
After " access module " that described PDSN determines described terminal according to the described LCP configuration request message of receiving or IPCP configuration request message, " access module " of the described terminal determined is notified to described terminal by LCP configuration response message or IPCP configuration response message.
6. as each described method of claim 1 to 5, it is characterized in that,
" access module " of described terminal comprises: simple IP (SIP) v4, SIPv6, client mobile IP (CMIP) v4, CMIPv6, proxy-mobile IP (PMIP) v4, PMIPv6;
Described PDSN initiates the IP connection building process according to " access module " of the described terminal of consulting to determine for this terminal and specifically comprises:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv4v6, described PDSN was terminal distribution IP address as the anchor point network element;
When " access module " of the described terminal of consulting to determine was CMIPv4 or CMIPv6, described PDSN was terminal distribution or co-located care-of address as Foreign Agent;
When " access module " of the described terminal of consulting to determine was PMIPv4, PDSN sent proxy registration request message as access server to home agent (HA)/local mobile anchor (LMA), and asking described HA/LMA is the terminal distribution address;
When " access module " of the terminal of consulting to determine was PMIPv6, PDSN sent agent binding update messages as Mobile Access Gateway to HA/LMA, and request HA/LMA is the terminal distribution address.
7. as each described method of claim 1 to 5, it is characterized in that,
" access module " of described terminal comprises: simple SIPv4, SIPv6, CMIPv4, CMIPv6, PMIPv4, PMIPv6;
Described PDSN sets up flow process according to " access module " of the described terminal of consulting to determine for this terminal initiation PCC session and specifically comprises:
When " access module " of the described terminal of consulting to determine is SIPv4 or SIPv6, described PDSN carries out entity (PCEF) as policy control, initiates to set up IP for described terminal to policy control rule entity (PCRF) and connects access network (IP-CAN) conversation request;
When " access module " of the described terminal of consult determining be CMIPv4, CMIPv6, PMIPv4 or PMIPv6, described PDSN was as bearing binding and reporting events entity (BBERF), for described terminal is set up the gateway control session request to the PCRF initiation.
8. method as claimed in claim 5 is characterized in that,
Described " access module " realized by terminal capability option or new addition option in the described LCP configuration request message of expansion or IPCP configuration request message or LCP configuration response message or the IPCP configuration response message.
9. a terminal connecting system is characterized in that, comprising: terminal and PDSN, and wherein said terminal further comprises the first mode negotiation module, described PDSN comprises that further the second mode negotiation module and session set up module, wherein
Described second mode negotiation module and the described first mode negotiation module are used for determining through consultation " access module " of terminal;
Described session is set up module and is used for setting up flow process according to " access module " of the described terminal of consult determining for this terminal initiation IP connection building process and/or PCC session.
10. system as claimed in claim 9 is characterized in that,
The described first mode negotiation module is used for, and select " access module " of terminal, and " access module " that will select is notified to the described second mode negotiation module;
The described second mode negotiation module is used for, receive " access module " of described terminal notice after, it is defined as " access module " of described terminal.
11. system as claimed in claim 9 is characterized in that,
The described first mode negotiation module is used for, and " access module " that described terminal is supported sends to the described second mode negotiation module;
The described second mode negotiation module is used for, and " access module " that the described terminal of receiving sends resolved, if only comprise a kind of " access module ", then determines " access module " to be " access module " of described terminal; If comprise multiple " access module ", then from described multiple " access module ", select one " access module " to be defined as " access module " of described terminal.
12. system as claimed in claim 10 is characterized in that,
The described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message will be selected is notified to the described second mode negotiation module.
13. system as claimed in claim 11 is characterized in that,
The described first mode negotiation module is used for, and " access module " that LCP configuration request message when setting up the PPP session by described terminal and described PDSN or IPCP configuration request message are supported described terminal sends to the described second mode negotiation module;
The described second mode negotiation module is used for, behind " access module " of determining described terminal according to the described LCP configuration request message of receiving or IPCP configuration request message, " access module " of the described terminal determined is notified to the described first mode negotiation module by LCP configuration response message or IPCP configuration response message.
14. each the described system as claim 9 to 13 is characterized in that,
Described session is set up module and is specifically comprised for this terminal initiation IP connection building process according to " access module " of consulting definite described terminal:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv4v6, described PDSN was terminal distribution IP address as the anchor point network element;
When " access module " of the described terminal of consulting to determine was CMIPv4 or CMIPv6, described PDSN was terminal distribution or co-located care-of address as Foreign Agent;
When " access module " of the described terminal of consulting to determine was PMIPv4, PDSN sent proxy registration request message as access server to HA/LMA, and asking described HA/LMA is the terminal distribution address;
When " access module " of the terminal of consulting to determine was PMIPv6, PDSN sent agent binding update messages as Mobile Access Gateway to HA/LMA, and request HA/LMA is the terminal distribution address.
15. each the described system as claim 9 to 13 is characterized in that,
Described session is set up module and is set up flow process according to " access module " of the described terminal of consult determining for this terminal initiation PCC session and specifically comprise:
When " access module " of the described terminal of consulting to determine was SIPv4 or SIPv6, described PDSN was as PCEF, for described terminal initiates to set up the IP-CAN conversation request to PCRF;
When " access module " of the described terminal of consult determining be CMIPv4, CMIPv6, PMIPv4 or PMIPv6, described PDSN was as BBERF, for described terminal is set up the gateway control session request to the PCRF initiation.
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| CN201010148695XA CN102223618A (en) | 2010-04-15 | 2010-04-15 | Terminal access method and system |
| PCT/CN2011/071801 WO2011127779A1 (en) | 2010-04-15 | 2011-03-15 | Access method and system for terminals |
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| CN101150418A (en) * | 2007-10-17 | 2008-03-26 | 中兴通讯股份有限公司 | A selection method for policy billing control server |
| CN101193039A (en) * | 2006-11-22 | 2008-06-04 | 华为技术有限公司 | Notification method for supporting mobile IP enhancing capability in network |
| WO2009092319A1 (en) * | 2008-01-21 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method and device of network resource release processing |
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| KR20060022437A (en) * | 2004-09-07 | 2006-03-10 | 삼성전자주식회사 | System and method of managing internet protocol packet between mobile communication network and wireless lan |
| CN100571286C (en) * | 2005-11-02 | 2009-12-16 | 中兴通讯股份有限公司 | Cdma system distributes the method for fixed ip address for the user |
| CN101656961B (en) * | 2009-09-01 | 2012-07-18 | 中兴通讯股份有限公司 | Method and system for accessing mobile IP service of CDMA2000 system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101193039A (en) * | 2006-11-22 | 2008-06-04 | 华为技术有限公司 | Notification method for supporting mobile IP enhancing capability in network |
| CN101150418A (en) * | 2007-10-17 | 2008-03-26 | 中兴通讯股份有限公司 | A selection method for policy billing control server |
| WO2009092319A1 (en) * | 2008-01-21 | 2009-07-30 | Huawei Technologies Co., Ltd. | Method and device of network resource release processing |
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