CN101521920A - Base station switching method - Google Patents
Base station switching method Download PDFInfo
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- CN101521920A CN101521920A CN200810007371A CN200810007371A CN101521920A CN 101521920 A CN101521920 A CN 101521920A CN 200810007371 A CN200810007371 A CN 200810007371A CN 200810007371 A CN200810007371 A CN 200810007371A CN 101521920 A CN101521920 A CN 101521920A
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Abstract
The invention discloses a base station switching method comprising the steps as follows: when a terminal is needed to be switched to a target base station from a service base station, the service base station sends a switching request message to one or more target base stations directly or by an access gateway; and the one or more target base stations respond the switching request message respectively and send a switching responding message to the service base station directly or by the access gateway, wherein the switching responding message carries relevant information of service flow processing situation or/and loading situation of the target base stations. By the base station switching method, the terminal can carry out selection of the switching target stations according to the service flow processing situation or/and the loading situation of each target base station during switching.
Description
Technical field
The present invention relates to the communications field, relate more specifically to a kind of base station switch method.
Background technology
In WiMAX Forum NWG Release 1.2 agreements, standard in handoff procedure, serve access service network (Access Service Network, be called for short ASN, it can comprise a plurality of Access Network gateways and a plurality of base station) and target ASN between the switching message interaction process.Because portable terminal (Mobile Station, be called for short MS) before switching, can set up many Business Streams, each Business Stream all has corresponding service quality (Quality ofService, be called for short QoS) parameter, and switching in the process of target ASN, Business Stream disposition on each target BS among the target ASN may be different, some Business Stream may be successful, some Business Stream may be failed, and the qos parameter of some Business Stream may remain unchanged, and the qos parameter of some Business Stream may change.Service ASN and the message interaction process between the target ASN in the agreement can not embody each target BS (Base Station among the target ASN at present, be called for short BS) in set up Business Stream situation (promptly, whether Business Stream success, and whether the qos parameter of Business Stream changes etc.).Therefore need to revise the message of existing protocol, make the message between service ASN and the target ASN can embody the Business Stream disposition of each target BS among the target ASN.
Summary of the invention
One or more problems in view of the above the invention provides a kind of base station switch method, so that terminal can be according to the Business Stream disposition of each target BS or/and loading condition carries out the selection of target BS when switching.
Base station switch method according to the embodiment of the invention may further comprise the steps: when needs with terminal when serving BS switches to target BS, serving BS directly or by IAD is sent to one or more target BS with handoff request message; One or more target BS are respectively in response to handoff request message, directly or by IAD send switching response message to serving BS, wherein, carry the Business Stream disposition of target BS in the switching response message or/and the relevant information of loading condition.
Wherein, when serving BS and one or more target BS were in the different access service networks, serving BS comprised the process that handoff request message is sent to one or more target BS: serving BS is sent to handoff request message the service IAD of serving in the access service network; The service IAD is sent to target access gateway in the target access service network with handoff request message; And target access gateway is sent to one or more target BS with handoff request message.
Wherein, when serving BS and one or more target BS are in the different access service networks, one or more target BS comprise to the process that serving BS sends switching response message: one or more target BS send switching response message respectively in response to handoff request message to target access gateway; Target access gateway will be sent to the service IAD separately or together from the switching response message of each target BS; And the service IAD will be sent to serving BS separately or together from the switching response message of each target BS.Wherein, further comprising the steps of according to the base station switch method of the embodiment of the invention: serving BS according to the Business Stream disposition of each target BS or/and loading condition selects one or more target BS as the handoff candidate base station, and notice terminal; In the notice terminal, also can be with handoff candidate service in base station stream disposition or/and loading condition.
Wherein, when serving BS and one or more target BS are in the different access service networks, one or more target BS comprise to the process that serving BS sends switching response message: one or more target BS send switching response message respectively in response to handoff request message to target access gateway; Target access gateway will be sent to the service IAD separately or together from the switching response message of each target BS; And the service IAD according to the Business Stream disposition of each target BS or/and loading condition, select one or more target BS as the handoff candidate base station, and will be sent to serving BS separately or together from the switching response message of each handoff candidate base station; In the notification service base station, also can be with each handoff candidate service in base station stream disposition or/and loading condition.Wherein, further comprising the steps of according to the base station switch method of the embodiment of the invention: serving BS will be sent to terminal separately or together from the switching response message of each handoff candidate base station.
Wherein, when serving BS and one or more target BS were in the identical access service network, serving BS comprised the process that handoff request message is sent to one or more target BS: serving BS is sent to IAD with handoff request message; IAD is sent to one or more target BS separately or together with handoff request message.
Wherein, when serving BS and one or more target BS are in the identical access service network, one or more target BS comprise to the process that serving BS sends switching response message: one or more target BS send switching response message respectively in response to handoff request message to IAD; IAD will be sent to serving BS separately or together from the switching response message of each target BS.Wherein, base station switch method according to the embodiment of the invention is further comprising the steps of: serving BS according to the Business Stream disposition of each target BS or/and loading condition, select one or more target BS as the handoff candidate base station, and with handoff candidate base station notice terminal; In the notice terminal, also can be with each handoff candidate service in base station stream disposition or/and loading condition.
Wherein, when serving BS and one or more target BS are in the identical access service network, one or more target BS comprise to the process that serving BS sends switching response message: one or more target BS send switching response message respectively in response to handoff request message to IAD; IAD or/and loading condition selects one or more target BS as the handoff candidate base station, and will be sent to serving BS from the switching response message of each handoff candidate base station according to the Business Stream disposition of each target BS separately or together.In the notification service base station, also can be with each handoff candidate service in base station stream disposition or/and loading condition.
Wherein, the relevant information of the Business Stream disposition of target BS comprise in the following information partly or entirely: Business Stream is handled relevant information, the service quality prediction of QoS parameter of information, the Business Stream of success or not.The relevant information of the loading condition of target BS comprises up or/and the relevant information of descending loading condition.
By the present invention, can make the terminal can be when switching according to the Business Stream disposition of each target BS or/and loading condition carries out the selection of target BS.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the base station switch method of the first embodiment of the present invention;
Fig. 2 is the flow chart of base station switch method according to a second embodiment of the present invention;
Fig. 3 is the flow chart of the base station switch method of a third embodiment in accordance with the invention.
Embodiment
Main purpose of the present invention is, make the serving BS can be in the message interaction process of switching, the Business Stream disposition of knowing each target BS is or/and loading condition, thereby can be according to the Business Stream disposition of each target BS or/and loading condition carries out switch decision.
Below with reference to accompanying drawing, describe the specific embodiment of the present invention in detail.
Fig. 1 is the flow chart according to the base station switch method of the first embodiment of the present invention.In method shown in Figure 1, do not need directly to carry out the interacting message in the handoff procedure between serving BS and the target BS by other network elements, specifically may further comprise the steps: S102, serving BS handoff request message is sent to one or more target BS; S104, one or more target BS send switching response message respectively in response to handoff request message to serving BS, and wherein, the Business Stream disposition that carries target BS in the switching response message is or/and the relevant information of loading condition; And S106, serving BS according to the Business Stream disposition of each target BS or/and loading condition, with part or all of target BS as the handoff candidate base station, and will be sent to terminal from the switching response message of each handoff candidate base station, so that terminal can switch to certain base station the handoff candidate base station from serving BS.
Fig. 2 is the flow chart of base station switch method according to a second embodiment of the present invention.In method shown in Figure 2, serving BS is among the identical ASN with target BS, carries out interacting message in the handoff procedure by IAD between them, specifically may further comprise the steps: S202, and serving BS is sent to IAD with handoff request message; S204, IAD is sent to one or more target BS with handoff request message; S206, one or more target BS send switching response message respectively in response to handoff request message to IAD, and wherein, the Business Stream disposition that carries target BS in the switching response message is or/and the relevant information of loading condition; S208, IAD will be sent to serving BS separately or together from the switching response message of each target BS; And S210, serving BS according to the Business Stream disposition of each target BS or/and loading condition, with part or all of target BS as the handoff candidate base station, and will be sent to terminal from the switching response message of each handoff candidate base station, so that terminal can switch to certain base station the handoff candidate base station from serving BS.
Fig. 3 is the flow chart of the base station switch method of a third embodiment in accordance with the invention.In method shown in Figure 3, serving BS is among the different ASN with one or more target BS.After target BS is received handoff request message, can carry out resource reservation according to the qos parameter of current each Business Stream of MS in the handoff request message, or the data channel that simultaneously each business is flow among the grappling ASN is carried out pre-registration, so target ASN need be the Business Stream result on the target BS or/and loading condition take back to service ASN, these results comprise: 1. the Business Stream disposition comprises: Business Stream is handled successfully or is failed, if allow the qos parameter degradation, then can also comprise the part qos parameter and change etc.; 2. the qos parameter of Business Stream: if qos parameter does not change, then can not be with this parameter, promptly be defaulted as qos parameter and do not change; If allow the qos parameter degradation, and qos parameter changes, then can be with going up actual qos parameter, perhaps only with the actual value that goes up the parameter that degradation takes place; 3. the loading condition of target BS comprises up or/and the down load situation.After service ASN receives the switching response message of target ASN, can do switch decision in conjunction with the switch decision strategy of oneself, promptly give the target BS of MS recommended candidate according to the situation of own each target BS Business Stream.
As shown in Figure 3, this method specifically may further comprise the steps: S302, and service ASN sends handoff request message to target ASN; S304, target ASN send handoff request message to the one or more target BS among the target ASN; S306, target BS loopback switching response message is given the AGW among the target ASN, and wherein, the processing service flow situation that has this target BS in the switching response message is or/and loading condition; S308, target ASN loopback switching response message is given service ASN, wherein, have this target ASN in the switching response message and received that the target base station processes Business Stream situation of response message is or/and loading condition, service ASN is according to the Business Stream disposition of each target BS, carries out switch decision in conjunction with oneself processing policy.
The above is embodiments of the 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 the claim scope of the present invention.
Claims (16)
1. a base station switch method is characterized in that, may further comprise the steps:
When needs with terminal when serving BS switches to target BS, described serving BS directly or by IAD is sent to one or more described target BS with handoff request message;
One or more described target BS are respectively in response to described handoff request message, directly or by described IAD send switching response message to described serving BS, wherein, carry the Business Stream disposition of described target BS in the described switching response message or/and the relevant information of loading condition.
2. base station switch method according to claim 1, it is characterized in that, when described serving BS was in the different access service networks with one or more described target BS, described serving BS comprised the process that described handoff request message is sent to one or more described target BS:
Described serving BS is sent to described handoff request message the service IAD of serving in the access service network;
Described service IAD is sent to target access gateway in the target access service network with described handoff request message; And
Described target access gateway is sent to one or more described target BS with described handoff request message.
3. base station switch method according to claim 2, it is characterized in that, when described serving BS was in the different access service networks with one or more described target BS, one or more described target BS comprised to the process that described serving BS sends described switching response message:
One or more described target BS in response to described handoff request message, send described switching response message to described target access gateway respectively;
Described target access gateway will be sent to described service IAD separately or together from the described switching response message of each described target BS; And
Described service IAD will be sent to described serving BS separately or together from the described switching response message of each described target BS.
4. base station switch method according to claim 3 is characterized in that, and is further comprising the steps of:
Described serving BS according to the Business Stream disposition of each described target BS or/and loading condition, select one or more described target BS to be notified to described terminal as the handoff candidate base station, also can be when notifying described terminal with each described handoff candidate service in base station stream disposition or/and loading condition is notified described terminal.
5. base station switch method according to claim 2, it is characterized in that, when described serving BS was in the different access service networks with one or more described target BS, one or more described target BS comprised to the process that described serving BS sends described switching response message:
One or more described target BS in response to described handoff request message, send described switching response message to described target access gateway respectively;
Described target access gateway will be sent to described service IAD separately or together from the described switching response message of each described target BS; And
Described service IAD according to the Business Stream disposition of each described target BS or/and loading condition, select one or more described target BS to be notified to described serving BS as the handoff candidate base station, also can be when notifying described serving BS with each described handoff candidate service in base station stream disposition or/and loading condition is notified to described serving BS.
6. base station switch method according to claim 5 is characterized in that, and is further comprising the steps of:
Described serving BS is notified to described terminal with each described handoff candidate base station, is notifying described terminal also each described handoff candidate service in base station can be flowed disposition or/and loading condition is notified to described terminal simultaneously.
7. base station switch method according to claim 1, it is characterized in that, when described serving BS was in the identical access service network with one or more described target BS, described serving BS comprised the process that described handoff request message is sent to one or more described target BS:
Described serving BS is sent to described IAD with described handoff request message;
Described IAD is sent to one or more described target BS with described handoff request message.
8. base station switch method according to claim 7, it is characterized in that, when described serving BS was in the identical access service network with one or more described target BS, one or more described target BS comprised to the process that described serving BS sends described switching response message:
One or more described target BS in response to described handoff request message, send described switching response message to described IAD respectively;
Described IAD will be sent to described serving BS separately or together from the described switching response message of each described target BS.
9. base station switch method according to claim 8 is characterized in that, and is further comprising the steps of:
Described serving BS according to the Business Stream disposition of each described target BS or/and loading condition, select one or more described target BS to be notified to described terminal as the handoff candidate base station, also can be when notifying described terminal with each described handoff candidate service in base station stream disposition or/and loading condition is notified to described terminal.
10. base station switch method according to claim 7, it is characterized in that, when described serving BS was in the identical access service network with one or more described target BS, one or more described target BS comprised to the process that described serving BS sends described switching response message:
One or more described target BS in response to described handoff request message, send described switching response message to described IAD respectively;
Described IAD according to the Business Stream disposition of each described target BS or/and loading condition, select one or more described target BS to be notified to described serving BS as the handoff candidate base station, also can be when notifying described serving BS with each described handoff candidate service in base station stream disposition or/and loading condition is notified to described serving BS.
11. base station switch method according to claim 10 is characterized in that, and is further comprising the steps of:
Described serving BS is notified to described terminal with each described handoff candidate base station, also can be with each described handoff candidate service in base station stream disposition or/and loading condition is notified to described terminal when notifying described terminal.
12. base station switch method according to claim 1 is characterized in that, described serving BS directly is sent to one or more described target BS with described handoff request message.
13. base station switch method according to claim 12 is characterized in that, one or more described target BS directly send described switching response message to described serving BS.
14. base station switch method according to claim 13 is characterized in that, and is further comprising the steps of:
Described serving BS according to the Business Stream disposition of each described target BS or/and loading condition, select one or more described target BS to be notified to terminal as the handoff candidate base station, also can be when notifying described terminal with each described handoff candidate service in base station stream disposition or/and loading condition is notified to described terminal.
15. according to each described base station switch method in the claim 1 to 14, it is characterized in that, the relevant information of the Business Stream disposition of described target BS comprise in the following information partly or entirely: Business Stream is handled relevant information, the service quality prediction of QoS parameter of information, the Business Stream of success or not.
16., it is characterized in that the relevant information of the loading condition of described target BS comprises up or/and the relevant information of descending loading condition according to each or 15 described base station switch methods in the claim 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810007371A CN101521920A (en) | 2008-02-29 | 2008-03-12 | Base station switching method |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810006356 | 2008-02-29 | ||
| CN200810006356.0 | 2008-02-29 | ||
| CN200810007371A CN101521920A (en) | 2008-02-29 | 2008-03-12 | Base station switching method |
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| CN101521920A true CN101521920A (en) | 2009-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810007371A Pending CN101521920A (en) | 2008-02-29 | 2008-03-12 | Base station switching method |
| CN 200810125503 Expired - Fee Related CN101521921B (en) | 2008-02-29 | 2008-06-04 | Base station switch method |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200810125503 Expired - Fee Related CN101521921B (en) | 2008-02-29 | 2008-06-04 | Base station switch method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011020325A1 (en) * | 2009-08-21 | 2011-02-24 | 中兴通讯股份有限公司 | Handover method of terminal, and base station thereof |
| CN102271371A (en) * | 2010-06-01 | 2011-12-07 | 中兴通讯股份有限公司 | Method for selecting link based on Keep-alive mechanism and base station |
| CN102487537A (en) * | 2010-12-02 | 2012-06-06 | 中兴通讯股份有限公司 | Method for selecting target base station (BS) during switching and system thereof |
| CN101521921B (en) * | 2008-02-29 | 2013-02-27 | 中兴通讯股份有限公司 | Base station switch method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114390549B (en) * | 2020-10-19 | 2024-03-26 | 上海华为技术有限公司 | User service method, access network equipment and system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100651430B1 (en) * | 2003-11-07 | 2006-11-28 | 삼성전자주식회사 | System and method for handover in a communication system |
| CN100373833C (en) * | 2004-03-29 | 2008-03-05 | 中兴通讯股份有限公司 | Load balancing method in system of broad band CDMA |
| CN101521920A (en) * | 2008-02-29 | 2009-09-02 | 中兴通讯股份有限公司 | Base station switching method |
-
2008
- 2008-03-12 CN CN200810007371A patent/CN101521920A/en active Pending
- 2008-06-04 CN CN 200810125503 patent/CN101521921B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521921B (en) * | 2008-02-29 | 2013-02-27 | 中兴通讯股份有限公司 | Base station switch method |
| WO2011020325A1 (en) * | 2009-08-21 | 2011-02-24 | 中兴通讯股份有限公司 | Handover method of terminal, and base station thereof |
| US9143992B2 (en) | 2009-08-21 | 2015-09-22 | Zte Corporation | Handover method of terminal, and base station thereof |
| CN102271371A (en) * | 2010-06-01 | 2011-12-07 | 中兴通讯股份有限公司 | Method for selecting link based on Keep-alive mechanism and base station |
| WO2011150630A1 (en) * | 2010-06-01 | 2011-12-08 | 中兴通讯股份有限公司 | Method and base station for link selection |
| CN102487537A (en) * | 2010-12-02 | 2012-06-06 | 中兴通讯股份有限公司 | Method for selecting target base station (BS) during switching and system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101521921A (en) | 2009-09-02 |
| CN101521921B (en) | 2013-02-27 |
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Application publication date: 20090902 |