CN101047987B - Method of R3 information transmission when R3 transport - Google Patents
Method of R3 information transmission when R3 transport Download PDFInfo
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- CN101047987B CN101047987B CN2006100815559A CN200610081555A CN101047987B CN 101047987 B CN101047987 B CN 101047987B CN 2006100815559 A CN2006100815559 A CN 2006100815559A CN 200610081555 A CN200610081555 A CN 200610081555A CN 101047987 B CN101047987 B CN 101047987B
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Abstract
This invention provides an R3 information transmission method during R3 migration. When an R3 of a terminal in a WiMAX network migrates, a service access network of the terminal sends R3 mobility-related context to a target access network. The invention can realize the transmission of R3 mobility-related context when terminals moves between ASN.
Description
Technical field
The present invention relates to radio transmission technical field, the method for R3 message transmission when being meant a kind of R3 relocation especially.
Background technology
At present when portable terminal mobile or be in the network optimization and other reason and the external agent that causes portable terminal when moving between ASN; Need hold consultation between objective network and the service network, and if can move then the context relevant with this external agent need transmit.How not move and which R3 mobility related context is arranged but still there is concrete scheme explanation external agent at present, how about these relevant R3 mobility related contexts transmit.Here explain, R3 is meant the reference point between home network and the visited network.At present among the WiMAX NWG (the network work group of WiMAX) also not to the definition of the transmission method of R3 mobility related context.
Summary of the invention
In view of this, the method for R3 message transmission when main purpose of the present invention has been to provide a kind of R3 relocation is so that the transmission of R3 mobility related context when between ASN, moving, is realized in the terminal.
The method of R3 message transmission when the invention provides a kind of R3 relocation comprises:
When migration took place the R3 at the terminal under the WiMAX network, the service access network at terminal sent R3 mobility related context to the target access network network;
The service access network at the terminal under the said WiMAX network further comprised before the target access network network sends R3 mobility related context:
The target access network network sends the R3 relocation indication to service access network, and the service access network of indicating terminal carries out migration and the indication transmission R3 mobility related context of R3; Or
The service access network at the terminal under the said WiMAX network sends to the target access network network and carries out the indication of R3 relocation; After the target access network network is received the R3 relocation indication, judge when not receiving R3 mobility related context as yet that return R3 relocation indication response to service access network, R3 relocation is agreed in indication.
Wherein, The service access network at the terminal under the said WiMAX network is after the target access network network sends R3 mobility related context; Further comprise: the target access network network sends the indication of R3 relocation state to service ASN, and whether indication service ASN need carry out the re-transmission of R3 mobility related context.
Wherein, between ASN, switch and when needing R3 relocation and setting up the R4 data path, said R3 relocation indication places data path to set up signaling when the terminal; Or
When the terminal after switching between ASN and setting up the R4 data path, remove in the process of R3 data path after switching required Signalling exchange accomplishing, said R3 relocation indication places the signaling of removing the R3 data path; Or
When switched between ASN at the terminal and need carry out R3 relocation, the R3 relocation indication placed handoff request or switch acknowledgment message; Or
For the terminal with MIP ability, when it the switching between ASN took place and needs R3 relocation takes place, the R3 relocation indication placed the R3 relocation request message.
Wherein, the R3 mobility related context parameter of transmission comprises: the home address at the terminal under the said WiMAX network.
Wherein, the R3 mobility related context parameter of transmission further comprises one of following or combination in any:
Dynamic Host Configuration Protocol server/the agency's of the address of the sign of the Dynamic Host Configuration Protocol server/agency's of the address of the home agent at terminal iidentification, terminal, grappling address, the PMIP manager of grappling, grappling authenticator sign, the sign of grappling aaa server, set of keys that the terminal is relevant with the MIP process, grappling context server, the mobility of portable terminal, portable terminal grappling type.
By on can find out, R3 transmission of Information when the present invention has realized R3 relocation, thus when move at the terminal, can carry out the transmission of R3 mobility related context between ASN, make the terminal can between ASN, carry out the seamless switching of grappling CSN.Specifically, can trigger the transmission of R3 mobility related context, and after the R3 relocation response of receiving target ASN, send R3 mobility related context to target ASN through the R3 relocation indication.Perhaps when transmitting the R3 relocation indication, together transmit R3 mobility related context and give target ASN, after target ASN confirms to receive, read said R3 mobility related context.And can directly require R3 mobility related context by target ASN to service ASN explanation, after service ASN receives, R3 mobility related context is passed to target ASN.In a word, the present invention moves between ASN and when needing R3 relocation, has realized the transmission of R3 mobility related context when the terminal, makes the terminal can between ASN, carry out the seamless switching of grappling CSN.
Description of drawings
Fig. 1 is that R3 mobility related context transmits principle schematic;
Fig. 2 agency's message flow chart when realizing that the portable terminal of MIP ability switches between ASN of serving as reasons;
Fig. 3 has the flow chart that switch at the terminal of MIP ability between ASN.
Embodiment
The present invention is (when switching between ASN like the terminal) when the needs R3 relocation, sends R3 mobility related context to target access network by service Access Network (ASN, Access Network), to realize the switching of terminal between ASN and the complete support of mobility functions.At first transmit schematic diagram below, cardinal principle of the present invention described referring to the R3 mobility related context shown in Fig. 1:
Under certain trigger condition, need identifying alternately of R3 relocation indication need carry out R3 relocation between service ASN and the target ASN, then carry out the migration of R3 mobility related context.The schematic diagram that the service ASN that serves as reasons as shown in Figure 1 initiates the R3 relocation indication need to prove that R3 mobility related context need transmit between grappling context server and target ASN.And its transmission possibly need through service ASN or ASN transfer in the middle of other.Flow chart shown in Fig. 1 comprises:
The first step: service ASN initiates the R3 relocation indication to target ASN, and indication needs to initiate R3 relocation;
Second step: after target ASN receives, judge when not receiving R3 mobility related context as yet, a R3 relocation indication of loopback response, R3 relocation is agreed in indication;
The 3rd step: service ASN passes to target ASN with R3 mobility related context after receiving said R3 relocation indication response.
Here explain, if R3 relocation indication initiate to service ASN from target ASN, after then serving ASN and receiving the R3 relocation indication, just can be to target ASN transmission R3 mobility related context.
In addition; When initiating the R3 relocation indication by service ASN, also can with R3 relocation indication and R3 mobility related context together (as placing a message) send to target ASN, like this when target ASN agreement R3 relocation; Directly from this message, read out R3 mobility related context; If target ASN disagrees with R3 relocation, then can abandon this message, and disagree with R3 relocation to the explanation of target ASN back response information.
Wherein, after can being implemented in R3 relocation, the switching of terminal between ASN and the complete support of mobility functions, the R3 mobility related context of transmission includes but not limited to the content shown in the table 1:
| Project name | Describe | Whether essential |
| MSID | Terminal iidentification.Can be that MS ID also can be NAI | Not |
| HA address | The address of the home agent at terminal | Not |
| HoA | The home address at terminal | Be |
| Anchor DHCP Proxy/Server | Dynamic Host Configuration Protocol server/the agency's of terminal grappling address | Not |
| Anchor PMIP Mobility Manager ID | The grappling PMIP mobility manager sign at terminal is only effective to the terminal of PMIP type | Not |
| Anchor Authenticator ID | The grappling authenticator sign at terminal | Not |
| AAA Server | If there is the address of the aaa server of terminal grappling | Not |
| MIP KEYs | The set of keys that the terminal is relevant with the MIP process | Not |
| Anchor context server | The grappling context server address at terminal | Not |
| Anchor DHCP Server option | Dynamic Host Configuration Protocol server/the agency's at terminal type | Not |
| Mobility mode | The mobility at terminal | Not |
Table 1
Wherein, as shown in table 1, the R3 mobility related context parameter of transmission must will comprise: the home address at terminal.Following is optional content:
If 1 transmits and characterized the sign at this terminal in other related news, then also need transmit terminal iidentification;
2, unnecessary obscure and omit in order to prevent, preferably carry the address of its home agent here.
3, for PMIP (PMIP; Proxy-mobile IP) terminal of type (referring to not have the terminal of moving the IP function); Give signaling management unit---the PMIP mobility manager at PMIP terminal in order correctly to transmit the PMIP signaling information, the R3 mobility related context parameter of transmission can also comprise alternatively: the sign of the PMIP mobility manager of grappling.
4, at the safety information related aspect:
A) if Security Association is arranged between terminal and external agent and the home agent and need shared public key material, then in R3 mobility related context, need these key materials (one group of MIP association key material) be carried and transmit together;
B) if there is not sharable key material between terminal and external agent or external agent and the home agent; Sharable key material is perhaps arranged but when needing authentication information that the grappling aaa server of external agent through the terminal obtain to add, then in R3 mobility related context, need the sign of the grappling aaa server at this terminal is carried and transmitted;
C) external agent of R3 relocation and when not knowing the grappling authenticator at this terminal if the terminal is moved or moved; And need when obtaining relevant authentication information, its grappling authenticator in R3 mobility related context, needs then need grappling authenticator sign carry and transmit with this terminal.
Lifting concrete embodiment below describes the concrete scene and the method for the switching of the R3 mobility related context of terminal in moving process.
Message flow chart when switching between ASN referring to the portable terminal by agency's realization MIP ability shown in Fig. 2 comprises:
Process is set up for the data channel between service ASN and the target ASN in step 207～212;
Step 213～217 are MIP (moving IP) registration process;
Step 218～220 are the data channel dispose procedure between service ASN and the target ASN;
Step 221～212 are the MIP log off procedure.
Wherein, can adopt the information of reciprocal process in the top flow chart to send the R3 relocation indication and transmit R3 mobility related context.For example, can adopt the hand off signaling between service ASN and target ASN to realize, specifically:
In the handoff request message of step 202, carry the R3 relocation indication that service ASN passes to target ASN; Show the field description of the R3 relocation indication that increases in the handoff request like following table 2:
| Project name | Describe | Whether essential |
| MS?ID | Terminal iidentification | Be |
| R3?Relocation?Indication | The R3 relocation indication | Not |
Table 2
In the switching response message of step 203, carry the response that target ASN returns to the R3 relocation indication, indicate whether to allow service ASN to carry out R3 relocation and send R3 mobility related context.Show the field description of the R3 relocation indication response that increases in the switching response message like following table 3:
| Project name | Describe | Whether essential |
| MS?ID | Terminal iidentification | Be |
| R3?Relocation Indication.response | R3 relocation indication response | Not |
Table 3
After service ASN receives that target ASN agrees to carry out the response of R3 relocation, in the switch acknowledgment message of step 204, carry the R3 mobility related context that service ASN sends to target ASN.Show in switch acknowledgment message the field description of the R3 mobility related context of increase like following table 4:
| Project name | Describe | Whether essential |
| MS?ID | Terminal iidentification | Be |
| R3?Context | R3 mobility related context | Not |
Table 4
Owing to when switch at the terminal, between ASN, can at first set up the R4 data path, and indicate whether to take place the R3 reorientation.Therefore, transmit R3 mobility related context and also can realize, can adopt following mode through the process of setting up the R4 data path between service ASN and the target ASN:
ASN initiates to set up in the request of R4 data path to target ASN in step 208 service, carries the R3 relocation indication.The field description of the R3 relocation indication that increases can be referring to shown in the table 2;
After target ASN receives the foundation request of R4 data path, send the R4 data path in step 209 to service ASN and set up in the response, carry response, indicate whether to allow service ASN to carry out R3 relocation and send R3 mobility related context the R3 relocation indication.The field description of the R3 relocation response that increases can be referring to shown in the table 3;
After service ASN receives that the R4 data path is set up response; When service ASN judges target ASN and agrees to carry out the response of R3 relocation according to wherein R3 relocation indication response, set up at the R4 of step 210 data path and to carry R3 mobility related context in confirming and give target ASN.The field description of the R3 relocation response that increases can be referring to shown in the table 4.
In addition, can also adopt following mode: when requiring service ASN to transmit context, can set up to service ASN transmission R4 data path by target ASN in step 208 and carry the R3 relocation indication in the request by target ASN triggering.The field description of the R3 relocation indication that increases can be referring to shown in the table 2;
After receiving that the R4 data path that carries R3 relocation indication is set up request, can set up in the response at the R4 data path that step 209 service ASN send to service ASN and carry R3 mobility related context.The field description of the R3 relocation response that increases can be referring to shown in the table 4.
After target ASN receives the R3 mobility related context of service ASN transmission, can send to service ASN in step 210 and carry the indication of R3 relocation state in the data path affirmation, come notification service ASN whether need carry out the re-transmission of R3 mobility related context.
Owing to when switch at the terminal, between ASN, can set up the R4 data path, and after indicating whether to take place the R3 reorientation.When no longer needing this data path, can require to finish this R4 data road between ASN.Therefore, transmitting R3 mobility related context also can realize through the demolishing process of the R4 data path between service ASN and the target ASN:
In step 218, service ASN carries the R3 relocation indication in the request of target ASN initiation dismounting R4 data path.The field description of the R3 relocation indication that increases can be referring to shown in the table 2;
After target ASN receives the dismounting request of R4 data path, send the R4 data path in step 219 to service ASN and remove the response of carrying in the response the R3 relocation indication.The field description of the R3 relocation response that increases can be referring to shown in the table 3;
After receiving that data path is removed response, serve the R3 relocation indication response wherein of ASN basis and judge in the time of to transmit R3 mobility related context, remove at the data path of step 220 and carry R3 mobility related context in the affirmation to target ASN.The field description of the R3 relocation response that increases can be referring to shown in the table 4.
The flow chart that switches between ASN referring to the terminal with MIP ability shown in Fig. 3 more below, the present invention will be described, comprises the steps:
Step 301～312 are identical with step 201～212, can be referring to step 201～212;
Step 313～321 are R3 relocation process and MIP registration process;
Step 322～324 are the data channel log off procedure;
Step 325～328 are the MIP log off procedure.
Wherein, the transmission of R3 mobility related context can be adopted the method described in the example of Fig. 2, also can be employed in the R3 reorientation message and realize, as in the R3 relocation request of step 314 shown in Figure 3, transmitting R3 mobility related context.
Need to prove, realize that for the terminal of CMIP type when of the present invention, the field description of the R3 relocation indication of described increase is as shown in table 5 below:
| Project name | Describe | Whether essential |
| MS?info | End message | Be |
| MS?ID | Terminal iidentification | Be |
| R3?Context | R3 moves context | Not |
Table 5
The field description of the R3 relocation response that increases is as shown in table 6 below:
| Project name | Describe | Whether essential |
| MS?info | End message | Be |
| MS?ID | Terminal iidentification | Be |
Table 6
The field description that the R3 relocation that increases is confirmed is as shown in table 7 below:
| Project name | Describe | Whether essential |
| MS?info | End message | Be |
| MS?ID | Terminal iidentification | Be |
| Result?Code | The R3 relocation object code | Not |
Table 7
Can find out by last embodiment; R3 transmission of Information when the present invention has realized R3 relocation; Can trigger the transmission of R3 mobility related context through the R3 relocation indication, and after the R3 relocation response of receiving target ASN, send R3 mobility related context to target ASN.Perhaps when transmitting the R3 relocation indication, together transmit R3 mobility related context and give target ASN, after target ASN confirms to receive, read said R3 mobility related context.And can directly require R3 mobility related context by target ASN to service ASN explanation, after service ASN receives, R3 mobility related context is passed to target ASN.In a word, the present invention moves between ASN and when needing R3 relocation, has realized the transmission of R3 mobility related context when the terminal, makes the terminal can between ASN, carry out the seamless switching of grappling CSN (CSN is the connection net of WiMAX network).
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. the method for R3 message transmission during a R3 relocation is characterized in that, comprising:
When migration took place the R3 at the terminal under the WiMAX network, the service access network at terminal sent R3 mobility related context to the target access network network;
The service access network at the terminal under the said WiMAX network further comprised before the target access network network sends R3 mobility related context:
The target access network network sends the R3 relocation indication to service access network, and the service access network of indicating terminal carries out migration and the indication transmission R3 mobility related context of R3; Or
The service access network at the terminal under the said WiMAX network sends to the target access network network and carries out the indication of R3 relocation; After the target access network network is received the R3 relocation indication, judge when not receiving R3 mobility related context as yet that return R3 relocation indication response to service access network, R3 relocation is agreed in indication.
2. method according to claim 1 is characterized in that, the service access network at the terminal under the said WiMAX network further comprises after the target access network network sends R3 mobility related context:
The target access network network sends the indication of R3 relocation state to service Access Network (ASN), and whether indication service ASN need carry out the re-transmission of R3 mobility related context.
3. method according to claim 1 is characterized in that:
When switch between Access Network (ASN) and need carry out R3 relocation and set up the R4 data path time, said R3 relocation indication places data path to set up signaling at the terminal; Or
When the terminal after switching between ASN and setting up the R4 data path, remove in the process of R3 data path after switching required Signalling exchange accomplishing, said R3 relocation indication places the signaling of removing the R3 data path; Or
When switched between ASN at the terminal and need carry out R3 relocation, the R3 relocation indication placed handoff request or switch acknowledgment message; Or
For the terminal with mobile IP (MIP) ability, when it the switching between ASN took place and needs R3 relocation takes place, the R3 relocation indication placed the R3 relocation request message.
4. method according to claim 1 is characterized in that, the R3 mobility related context parameter of transmission comprises: the home address at the terminal under the said WiMAX network.
5. method according to claim 4 is characterized in that, the R3 mobility related context parameter of transmission further comprises one of following or combination in any:
Dynamic Host Configuration Protocol server/the agency's of the address of the sign of proxy-mobile IP (PMIP) manager of the Dynamic Host Configuration Protocol server/agency's of the address of the home agent at terminal iidentification, terminal, grappling address, grappling, grappling authenticator sign, the sign of grappling aaa server, set of keys that the terminal is relevant with mobile IP (MIP) process, grappling context server, the mobility of portable terminal, portable terminal grappling type.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1251249A (en) * | 1997-02-19 | 2000-04-19 | 诺基亚电信公司 | Cellular radio access network and location updating in cordless communications system |
| CN1663158A (en) * | 2002-05-10 | 2005-08-31 | 高通股份有限公司 | Handover in a hybrid communications network |
| CN1726727A (en) * | 2002-11-13 | 2006-01-25 | 诺基亚公司 | Method and apparatus for performing inter-technology handoff from WLAN to cellular network |
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- 2006-05-29 CN CN2006100815559A patent/CN101047987B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251249A (en) * | 1997-02-19 | 2000-04-19 | 诺基亚电信公司 | Cellular radio access network and location updating in cordless communications system |
| CN1663158A (en) * | 2002-05-10 | 2005-08-31 | 高通股份有限公司 | Handover in a hybrid communications network |
| CN1726727A (en) * | 2002-11-13 | 2006-01-25 | 诺基亚公司 | Method and apparatus for performing inter-technology handoff from WLAN to cellular network |
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| 同上. |
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