CN101026859A - Paging controller selecting method for broadband wireless access system - Google Patents
Paging controller selecting method for broadband wireless access system Download PDFInfo
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- CN101026859A CN101026859A CNA2006100078393A CN200610007839A CN101026859A CN 101026859 A CN101026859 A CN 101026859A CN A2006100078393 A CNA2006100078393 A CN A2006100078393A CN 200610007839 A CN200610007839 A CN 200610007839A CN 101026859 A CN101026859 A CN 101026859A
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Abstract
The method includes steps: (1) in procedure of logging out terminal, after receiving message for releasing data channel sent from base station, ASN-GW assigns current serving seeking controller Anchor PC for the terminal based on saved load information of PC, and sends message of reporting terminal information to the Anchor PC; (2) after saving the terminal information, Anchor PC returns response to ASN-GW; the ASN-GW sends response message of releasing data channel with carried appointed ID of the Anchor PC to the base station; (3) after receiving response message of releasing data channel, base station checks up carrying and releasing result by media side, and returns response to terminal. It is in favor of going shares of Anchor PC that ASN-GW assigns suitable Anchor PC for MS based on saved loading condition of all PC.
Description
Technical field
The present invention relates to the selection of paging controller in the wireless network, the system of selection of paging controller when particularly relating to the 802.16e system terminal and entering idle pulley.
Background technology
802.16e the broadband wireless access standard that standard is an ieee standard to be organized to set up is compared to 802.16 standards, has increased many supports for terminal mobility among the 802.16e.Such as switching and electricity-saving mechanism.
Idle (Idle) pattern is a kind of very important electricity-saving mechanism in the 802.16e system.For the paging of support terminal (MS) under the Idle pattern, agreement has proposed the notion of paging zone.A plurality of base stations (BS) are divided into a paging zone, allow overlapping between the paging zone.A plurality of paging zones are managed by a paging controller (PC).As shown in Figure 1, base station 0 and base station 1 belong to paging group A, base station 1 and base station 2 belong to paging group B, paging controller 0 and paging controller 1 are being managed paging group A, paging controller 0 links to each other with location register (LR) respectively to preserve the MS relevant information with paging controller 1, and paging controller 0 links to each other with base station 1 with base station 0 so that the MS among the paging group A is initiated paging simultaneously with paging controller 1.IAD (ASN-GW) links to each other with paging controller 0 and paging controller 1 simultaneously.
802.16e system network architecture figure as shown in Figure 2, comprising base station (BS), relaying IAD (Relay ASN-GW), current service IAD (Anchor ASN-GW, also can be described as the Anchor IAD), home agent (HA), authentication person (Authenticator), relaying paging controller (Relay PC) and current service paging controller functional modules such as (Anchor PC also can be described as the Anchor paging controller).
Base station link to each other with the Anchor IAD (or by relaying IAD), the Anchor IAD is responsible for the outlet route of whole Access Network place IP network section, the Anchor IAD links to each other with authentication person, and authentication person is the authentication logic module in the PKMv2 agreement, is responsible for the authentication of processing terminal.For mobile IP, the Anchor IAD is realized the function of Foreign Agent (FA), and it links to each other by IP network with home agent, and the data that mail to terminal will be forwarded to the Anchor IAD by mobile IP tunnel by home agent.
The Anchor paging controller is responsible for the paging control of terminal, the relevant information that terminal is upgraded and preserved in the position.The relaying paging controller is responsible for the forwarding of page notification message between Anchor paging controller and the base station.
Home agent is a kind of functional entity in the mobile IP mechanism, and purpose is the local log-on message, positional information of maintenance terminal and outwards acts on behalf of or terminal is transmitted the data that are routed to terminal by mobile IP tunnel.
When MS is under the Idle pattern, and when having downlink service data to arrive, PC is responsible for initiating paging, and all BS of MS place paging group will send paging broadcast message, and MS determines according to the indication in the paging broadcast message whether needs withdraw from the Idle pattern and carry out network and re-accesses.
When the terminal of supporting mobile IP when normal mode enters into the Idle pattern, need select suitable PC so that the MS under the Idle pattern is managed and preserves the current information (comprising basic capacity and Business Stream information) of terminal for MS, in case wake up under the Idle pattern after the MS, MS can obtain relevant information again with the accelerating network access procedure from PC.
How selecting suitable PC when MS enters the Idle pattern is a difficult point of studying at present.NWG working group under the Wimax tissue has proposed the method for a kind of selection service PC (Anchor PC), promptly select Anchor PC by Relay PC, the shortcoming of this scheme is because Relay PC can't understand the information of any Anchor PC, Relay PC can only be at random or fix and select certain Anchor PC, it is being in a plurality of MS assignment Anchor PC processes that such result can cause, Anchor PC load sharing inequality, even the excessive situation of a certain Anchor PC load sharing can appear.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of system of selection of paging controller, is beneficial to the load sharing of paging controller.
For solving the problems of the technologies described above, the invention provides a kind of paging controller system of selection of BWA, the Anchor IAD is the Anchor paging controller information of the terminal of idle mode correspondence of preserving, and is used to realize the selection to paging controller, specifically may further comprise the steps:
(a) in the process that terminal goes to register, after the Anchor IAD receives that the data channel of sending the base station discharges request message, load information according to the paging controller of preserving is this terminal assignments Anchor paging controller, and sends the end message report message to this Anchor paging controller;
(b) described Anchor paging controller returns response to described Anchor IAD after preserving this end message, and this Anchor IAD sends data channel to described base station again and discharges response message, carries the described Anchor paging controller sign of appointment;
(c) after described base station receives that data channel discharges response message, check the result of carrying release and return response to terminal.
Further, in the step (a), when meeting the trigger condition of idle pulley, terminal is initiated to go register request message to begin terminal to the base station and is removed enrollment process, informing base station sends terminal to the relaying paging controller and goes register request message, and the relaying paging controller goes enrollment response message to base station feedback.
Further, the base station sends terminal to the relaying paging controller and removes to comprise in the register request message terminal iidentification, Base Station Identification, and the relaying paging controller removes to comprise in the enrollment response message terminal iidentification, paging parameters to base station feedback; Described paging parameters comprises paging cycle, paging biasing and paging group sign.
Further, in the step (a), data channel discharges that to comprise terminal iidentification, Base Station Identification, relaying paging controller in the request message be the paging parameters of terminal assignments, current IAD sign and terminal idle pulley obligate information.
Further, in the step (a), the base station sends data channel by the relaying IAD to the Anchor IAD and discharges request.
Further, the Anchor IAD comprises following parameter in the step (a) in the end message report message that the Anchor paging controller sends: current IAD sign, terminal iidentification, terminal pattern obligate information, authentication person's sign and paging parameters information.
Further, in the step (b), the Anchor paging controller comprises terminal iidentification, paging controller sign, terminal idle pulley mandate indication in the end message response message that described Anchor IAD sends.
Further, in the step (c), the result that carrying discharges is checked in the base station, if discharge successfully, sends the registration command message of eating dishes without rice or wine that has " success " indication to terminal.
Further, step (c) is if release is unsuccessful, and the base station has the registration command of eating dishes without rice or wine that " failure " indicates to the terminal feedback, and terminal is restarted enrollment process according to the indication wait.
Further, in the step (b), IAD is preserved the correspondence relationship information of terminal and this appointment Anchor paging controller simultaneously.
Compared to prior art, in the BWA of the present invention, Anchor ASN-GW preserves the information of the Anchor PC of terminal correspondence under the Idle pattern, Anchor ASN-GW is MS assignment proper A nchor PC according to all PC loading conditions of preserving, realize the selection function of Anchor paging controller, this inventive method utilizes Anchor ASN-GW to select paging controller, helps the realization load sharing of AnchorPC.
Description of drawings
Fig. 1 is that broadband wireless access 802.16e system paging function logic entity constitutes schematic diagram.
Fig. 2 is a 802.16e system network architecture schematic diagram.
Fig. 3 is an embodiment of the invention terminal when entering the Idle pattern, the system of selection schematic flow sheet of paging controller.
Embodiment
802.16e system network architecture figure as shown in Figure 2, comprising base station (BS), relaying IAD (Relay ASN-GW), current service IAD (Anchor ASN-GW), home agent (HA), authentication person (Authenticator), relaying paging controller (Relay PC) and current service paging controller functional modules such as (Anchor PC).Wherein, the Anchor IAD can be preserved the information of the Anchor PC of terminal correspondence under the Idle pattern, selection function with Anchor paging controller, thus can utilize Anchor ASN-GW to select the paging controller system of selection, help realizing load sharing.
As shown in Figure 3, the system of selection of paging controller may further comprise the steps in the BWA of the present invention:
Step 1: terminal enters the Idle pattern according to certain trigger condition decision behind access network, at first sends to base station BS and goes registration request (DREG-REQ) message;
Step 2:BS goes registration request (MS Dreq Req) message informing Relay PC terminal to begin to enter the log-on operation that goes of Idle pattern to relaying paging controller (Relay PC) transmission terminal MS after receiving this message, and terminal goes register request message to comprise following information at least: (1) terminal iidentification (MSID) sign; (2) Base Station Identification (BSID).
The base station BS information that step 3:Relay PC goes to report in the register request message according to terminal is terminal MS assigned paging parameter, this paging parameters comprises: paging cycle, paging biasing and paging group sign (PGID) etc., and go register response (MS Dreq Rsp) message to the base station feedback terminal, comprise (1) MSID in the message; (2) be the paging parameters of MS assignment;
Step 4 and step 5: the base station sends the carrying that data channel discharges request (Data Path Rel Req) message request release R4/R6 interface by relaying IAD (Relay ASN-GW) to the IAD (Anchor ASN-GW) of current service, should comprise (1) MSID in this message; (2) BSID; (3) Relay PC is the paging parameters of MS assignment; (4) Anchor ASN-GWID; (5) MS Idle pattern obligate information etc.;
If have direct interface between base station and the Anchor ASN-GW, the base station can directly send data channel to Anchor ASN-GW and discharge request message;
Step 6:Anchor ASN-GW receives and carries out verification according to the MS information in the message after data channel discharges request message, if this MS is for creating the MS of carrying, Anchor ASN-GW sends the end message report message to Anchor PC behind the MS assignment proper A nchor PC, and this report message comprises: (1) MS identifies (MSID); (2) Idle pattern obligate information, this information comprises traffic stream identifier SFID, connection identifiers CID, Qos etc.; (3) paging parameters (comprising PGID, paging cycle, paging biasing etc.); (4) Anchor ASN-GWID; (5) Authenticator ID.
When being MS assignment proper A nchor PC according to the PC load information of preserving, a variety of algorithms can be arranged, as existing various load assigning methods, the present invention does not limit this, and concrete algorithm can be expanded arbitrarily.
Send end message response (MS Info Response) message to Anchor ASN-GW after the relevant information of step 7:Anchor PC preservation MS.This message comprises following content: (1) MSID, (2) PCID; (3) Idle schema authorization indication.
After step 8 and step 9:Anchor ASN-GW receive end message response message from Anchor PC, preserve the correspondence relationship information of MS and this appointment Anchor PC simultaneously, if the Idle pattern be authorized to by, to send data channel to BS by Relay ASN-GW and discharge response message, should comprise in the message: (1) MSID; (2) PCID; (3) indication of Idle schema authorization; (4) carrying discharges result's indication;
After step 10:BS receives data channel release response message, check the result that carrying discharges, if discharge successfully, to trigger to send and have " success " and indicate and (successfully be designated as in the existing protocol: Action Code=05 to terminal, indication BS approval MS enters the Idle pattern) the registration command of eating dishes without rice or wine (DREG-CMD) message, go the PC ID parameter in the registration command message to be oriented to the Anchor PC that MS distributes, if discharge unsuccessful, the base station has " failure " indication (in the existing protocol to the terminal feedback, failure is designated as Action Code=06 or 07) the registration command of eating dishes without rice or wine, terminal is waited for according to indication and is restarted enrollment process.
By above flow process, MS just can successfully enter the Idle pattern, and under the Idle pattern, BS will discharge the medium face carrying of MS and interface-free resources (such as connection identifier (CID etc.).The paging of MS will be initiated by Anchor PC under the Idle pattern.
Compared to prior art, in the BWA of the present invention, Anchor ASN-GW preserves the information of the Anchor PC of terminal correspondence under the Idle pattern, Anchor ASN-GW is MS assignment proper A nchor PC according to the PC load information of preserving, realize the selection function of Anchor paging controller, this inventive method utilizes Anchor ASN-GW to select paging controller, helps the realization load sharing of Anchor PC.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1, a kind of system of selection of BWA paging controller, it is characterized in that, the Anchor IAD is the Anchor paging controller information of the terminal of idle mode correspondence of preserving, and is used to realize the selection to paging controller, specifically may further comprise the steps:
(a) in the process that terminal goes to register, after the Anchor IAD receives that the data channel of sending the base station discharges request message, load information according to the paging controller of preserving is this terminal assignments Anchor paging controller, and sends the end message report message to this Anchor paging controller;
(b) described Anchor paging controller returns response to described Anchor IAD after preserving this end message, and this Anchor IAD sends data channel to described base station again and discharges response message, carries the described Anchor paging controller sign of appointment;
(c) after described base station receives that data channel discharges response message, check the result of carrying release and return response to terminal.
2, system of selection as claimed in claim 1, it is characterized in that: in the step (a), when meeting the trigger condition of idle pulley, terminal is initiated to go register request message to begin terminal to the base station and is removed enrollment process, informing base station sends terminal to the relaying paging controller and goes register request message, and the relaying paging controller goes enrollment response message to base station feedback.
3, system of selection as claimed in claim 2, it is characterized in that: the base station sends terminal to the relaying paging controller and removes to comprise in the register request message terminal iidentification, Base Station Identification, and the relaying paging controller removes to comprise in the enrollment response message terminal iidentification, paging parameters to base station feedback; Described paging parameters comprises paging cycle, paging biasing and paging group sign.
4, system of selection as claimed in claim 3 is characterized in that: in the step (a), data channel discharge in the request message comprise terminal iidentification, the relaying paging controller is the paging parameters and the terminal idle pulley obligate information of terminal assignments.
5, system of selection as claimed in claim 1 is characterized in that: in the step (a), the base station sends data channel by the relaying IAD to the Anchor IAD and discharges request.
6, system of selection as claimed in claim 1 is characterized in that: the Anchor IAD comprises following parameter in the step (a) in the end message report message that the Anchor paging controller sends: terminal iidentification, terminal idle pulley obligate information, authentication person's sign and paging parameters information.
7, system of selection as claimed in claim 1, it is characterized in that: in the step (b), the Anchor paging controller comprises terminal iidentification, paging controller sign, terminal idle pulley mandate indication in the end message response message that described Anchor IAD sends.
8, system of selection as claimed in claim 1 is characterized in that: in the step (c), the result that carrying discharges is checked in the base station, if discharge successfully, sends the registration command message of eating dishes without rice or wine that has " success " indication to terminal.
9, system of selection as claimed in claim 8 is characterized in that: step (c) is if release is unsuccessful, and the base station has the registration command of eating dishes without rice or wine that " failure " indicates to the terminal feedback, and terminal is restarted enrollment process according to the indication wait.
10, system of selection as claimed in claim 1 is characterized in that: in the step (b), IAD is preserved the correspondence relationship information of terminal and this appointment Anchor paging controller simultaneously.
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| CNB2006100078393A CN100479561C (en) | 2006-02-17 | 2006-02-17 | Paging controller selecting method for broadband wireless access system |
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| CNB2006100078393A CN100479561C (en) | 2006-02-17 | 2006-02-17 | Paging controller selecting method for broadband wireless access system |
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| CN100479561C CN100479561C (en) | 2009-04-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483932B (en) * | 2008-01-08 | 2010-09-29 | 大唐移动通信设备有限公司 | Method for releasing packet data network connection |
| CN101895458B (en) * | 2009-05-18 | 2013-05-15 | 电信科学技术研究院 | Method and system for releasing packet data network connection, and data gateway |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102006298A (en) * | 2010-11-26 | 2011-04-06 | 华为技术有限公司 | Method and device for realizing load sharing of access gateway |
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- 2006-02-17 CN CNB2006100078393A patent/CN100479561C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101483932B (en) * | 2008-01-08 | 2010-09-29 | 大唐移动通信设备有限公司 | Method for releasing packet data network connection |
| CN101895458B (en) * | 2009-05-18 | 2013-05-15 | 电信科学技术研究院 | Method and system for releasing packet data network connection, and data gateway |
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| CN100479561C (en) | 2009-04-15 |
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Granted publication date: 20090415 Termination date: 20180217 |