CN102045799B - Switching method, device and system - Google Patents
Switching method, device and system Download PDFInfo
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- CN102045799B CN102045799B CN2009102068277A CN200910206827A CN102045799B CN 102045799 B CN102045799 B CN 102045799B CN 2009102068277 A CN2009102068277 A CN 2009102068277A CN 200910206827 A CN200910206827 A CN 200910206827A CN 102045799 B CN102045799 B CN 102045799B
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- 238000000034 method Methods 0.000 title claims abstract description 55
- 230000005012 migration Effects 0.000 claims description 18
- 238000013508 migration Methods 0.000 claims description 18
- 230000004044 response Effects 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 abstract description 4
- 230000002708 enhancing effect Effects 0.000 description 7
- 230000003993 interaction Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013468 resource allocation Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 235000021186 dishes Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points
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Abstract
The embodiment of the invention provides a switching method, a device and a system, relating to the technical field of mobile communication. The switching method provided by the embodiment of the invention comprises receiving a switching request which is sent by a subsystem of source base station by means of an interface between the subsystem BSS of source base station of a second network and thesubsystem BSS of target base station when a customer equipment is switched from the first network to the second network and is controlled at connection maintaining state, and switching the customer equipment according to the switching request. The switching method provided by the invention has the advantages that the re-switching process is optimized and the re-switching time is shortened.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to the handoff technique of a kind of subscriber equipment between base station sub-system.
Background technology
At present, there is multiple standard in the network simultaneously, for example: (the Global Systemfor Mobile Communications of the GSM in the 2G network, global system for mobile communications), (the Wideband Code Division Multiple Access of the WCDMA in the 3G network, the Wideband Code Division Multiple Access (WCDMA) access), TD-SCDMA (Division-Synchronous Code Division Multiple Access, the CDMA technological of time-division), CDMA2000 (Code Division Multiple Access2000, code division multiple access insert 2000) etc.Therefore, have diversified interoperability between described each system, for example: 2G switches etc. to the CS of 2G to CS (Circuit Switched Domain, circuit commutative field) switching, the 3G of 3G.In order to make 2G network and the 3G network can better intercommunication, in the handoff procedure of interdepartmental system, for example: the switching between GSM and TD-SCDMA system, can pass through BSS (Base Station Subsystem, base station sub-system) with RNS (Radio Network Subsystem, RNS) between Access Network in the Iur-g interface directly carry out information interaction.But, after switching to the 2G network from 3G network, adopt by subscriber equipment the Iur-g interface to connect when keeping, if subscriber equipment is striden the switching between BSS again in described 2G network, then need RNS to cooperate and finish the switching flow of striding BSS.As shown in Figure 1, its idiographic flow is as follows:
101, subscriber equipment is in Iur-g connection hold mode after 3G network switches to the 2G network.
102, source base station subsystem S-BSS judgement subscriber equipment need switch to subsystem of objective base station T-BSS, then send migration demand (the Enhanced Relocation Required) message that strengthens to RNS, carry Target cell CGI (Common Gateway Interface in the message, CGI), switch reasons etc.
If there are the Iur-g interface in 103 RNS and T-BSS, RNS sends migration request (Enhanced Relocation Request) the message informing T-BSS that strengthens by the Iur-g interface and carries out handover resource allocation.
104, after T-BSS finishes handover resource allocation, reply migration response (EnhancedRelocation Response) message that strengthens to RNS.
105, RNS sends migration order (the Enhanced Relocation Command) message that strengthens to S-BSS, wherein includes the switching command of T-BSS.
106, S-BSS issues switching command (Handover Command) message to described subscriber equipment.
107, described subscriber equipment sends to switch to T-BSS and inserts (Handover Access) message.
108, T-BSS sends the migration that strengthens to RNC and detects (Enhanced Relocation Detect) message, after RNC receives this message, user's face is switched to T-BSS.
109, described subscriber equipment reports to switch to T-BSS and finishes (Handover Complete) message.
110, T-BSS finishes (Enhanced Relocation complete) message informing RNS to the migration of RNC transmission enhancing and has switched to T-BSS.
111, RNC sends Iur-g release command (Iur-g Release Command) message to S-BSS.
112, after S-BSS receives above-mentioned Iur-g Release Command message, discharge the Iur-g signaling and be connected with user's face, return Iur-g release and finish (Iur-g Release complete) message.
In realizing process of the present invention, the inventor finds to have following problem in the prior art at least: in the prior art, after switching to the 2G network from 3G network, adopt by subscriber equipment the Iur-g interface to connect when keeping, if subscriber equipment is striden the switching between BSS again in the 2G network, then need RNS to cooperate and finish the switching of striding BSS, thereby the signaling process complexity in the feasible process of switching again between RNS and S-BSS, the T-BSS, switching time is longer.
Summary of the invention
The embodiment of the invention provides a kind of changing method, device and system, with the purpose that realizes optimizing switching flow again, shortening switching time again.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, the embodiment of the invention provides the changing method of a kind of subscriber equipment between base station sub-system, comprise: when described subscriber equipment connects hold mode from being in after first network switches to second network, by the interface between source base station subsystem BSS and subsystem of objective base station BSS in described second network, receive the handover request that described source base station subsystem sends; According to described handover request, switch described subscriber equipment.
On the other hand, the embodiment of the invention provides a kind of switching device shifter, comprising:
The handover request receiving element, be used for when described subscriber equipment when being in the connection hold mode after first network switches to second network, by the interface between source base station subsystem and subsystem of objective base station in described second network, receive the handover request that described source base station subsystem sends;
Switch unit is used for according to described handover request, switches described subscriber equipment.
On the one hand, the embodiment of the invention also provides a kind of communication system again, and this system comprises aforesaid switching device shifter, and the source base station subsystem of communicating by letter with described switching device shifter.
A kind of changing method, device and system that the embodiment of the invention provides, when described subscriber equipment connects hold mode from being in after first network switches to second network, by the interface between source base station subsystem BSS and subsystem of objective base station BSS in described second network, subsystem of objective base station receives the handover request that described source base station subsystem sends, and according to described handover request, switch described subscriber equipment, thereby finish the handoff procedure of described subscriber equipment.With need comparing by the switching that the RNS cooperation is finished between BSS of mentioning in the prior art, the embodiment of the invention can directly be carried out information interaction by the interface between the BSS, finish the process of switching, thereby optimized the flow process of switching again, shortened switching time again.
Description of drawings
Fig. 1 is the changing method flow chart of a kind of subscriber equipment between base station sub-system in the prior art;
A kind of changing method flow chart that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is the frame of reference schematic diagram of Iur-g interface;
A kind of changing method flow chart that Fig. 4 provides for the embodiment of the invention;
A kind of changing method flow chart that Fig. 5 provides for the embodiment of the invention;
A kind of switching device shifter structural representation that Fig. 6 provides for the embodiment of the invention;
A kind of communication system architecture schematic diagram that Fig. 7 provides for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing a kind of changing method, device and the system that the embodiment of the invention provides is described in detail.
As shown in Figure 2, be a kind of changing method that the embodiment of the invention provides, this method comprises:
201: when subscriber equipment connects hold mode from being in after first network switches to second network, by the interface between source base station subsystem BSS in second network and subsystem of objective base station BSS, the handover request that the reception sources base station sub-system sends;
202: according to handover request, switch subscriber equipment.
For changing method and the device of subscriber equipment between base station sub-system more clearly is described, at first the frame of reference to the Iur-g interface mentioned in the embodiment of the invention is described.
As shown in Figure 3, the frame of reference of this Iur-g interface comprises: RNS RNS, the first base station sub-system BSS1, second base station sub-system BSS2 and the subscriber equipment; Wherein, RNS is 3G network equipment, and BSS1 and BSS2 are the 2G network equipment; RNS can link to each other by the Iu interface with the 3G core net, BSS1 in the 2G core net can link to each other with the 2G core net by the A interface respectively with BSS2, can link to each other by the Iur-g interface between RNS and the BSS1, can link to each other by the Um that eats dishes without rice or wine between subscriber equipment and the base station sub-system.Like this, when subscriber equipment switches to the BSS1 of 2G network from the RNS of 3G network after, be in the Iur-g interface and connect hold mode.
When subscriber equipment was in Iur-g interface connection hold mode, if subscriber equipment in the 2G network, when the switching between the base station sub-system between BSS1 and the BSS2 takes place again, as shown in Figure 4, is a kind of changing method that the embodiment of the invention provides, this method comprised:
401: when subscriber equipment connects hold mode from being in after first network switches to second network, by the Iur-g interface between source base station subsystem and subsystem of objective base station in second network, the handover request that subsystem of objective base station T-BSS reception sources base station sub-system S-BSS sends.
Wherein, first network is 3G network, and second network is the 2G network, is connected hold mode by the Iur-g interface subscriber equipment between 3G network equipment and the 2G network equipment from being in after 3G network switches to the 2G network.
Wherein, handover request can be the migration request message that strengthens; This message comprises parameters such as Target Cell Identifier, customer equipment identification, Speech version, UE capability.
402: according to handover request, switch subscriber equipment.
In this step, T-BSS is user equipment allocation Radio Resource and corresponding channel according to the handover request that receives; And set up the A interface between T-BSS and the core net CN and be connected, and send handoff completion message to core net, so that core net is finished call migration and core net indication RNS discharges the Iu resource, and then finish the switching of subscriber equipment from S-BSS to T-BSS.
A kind of changing method that the embodiment of the invention provides, when subscriber equipment by the Iur-g interface between 3G network equipment RNS and the 2G network equipment BSS, when connecting hold mode from being in after 3G network switches to the 2G network, by the Iur-g interface between source base station subsystem and subsystem of objective base station in second network, the handover request that subsystem of objective base station reception sources base station sub-system sends, and according to handover request, switch subscriber equipment, thereby finish the handoff procedure of subscriber equipment.With need comparing by the switching that the RNS cooperation is finished between BSS of mentioning in the prior art, the embodiment of the invention can directly be carried out information interaction by the Iur-g interface between the BSS, finish the process of switching, thereby optimized the flow process of switching again, shortened switching time again.
As shown in Figure 5, be a kind of changing method that the embodiment of the invention provides, the specific implementation process of this method is as follows:
When subscriber equipment is in Iur-g after switching to the 2G network from 3G network and connects hold mode, measurement report judgement subscriber equipment needs in the 2G network that S-BSS sends according to subscriber equipment are striden the switching between BSS, be that S-BSS need switch to T-BSS, and there is the Iur-g interface between S-BSS and the T-BSS, then carries out following steps:
501, T-BSS receives Enhanced Relocation Request (migration request of the enhancing) message that S-BSS sends by the Iur-g interface.
502, T-BSS is user equipment allocation Radio Resource and corresponding channel, thereby gets ready for subscriber equipment switches to T-BSS.
503, when T-BSS be after subscriber equipment is finished resource distribution, send Enhanced RelocationResponse (the migration response of enhancing) message and give S-BSS, notice S-BSS can switch.
504, S-BSS receives the Enhanced Relocation Response message from T-BSS, sends Handover Command message to subscriber equipment, and notifying user equipment is striden the switching between BSS.
505, subscriber equipment sends Handover Complete (switching is finished) message and gives T-BSS, and notice T-BSS switching is finished.
506, after T-BSS receives the Handover Complete message of subscriber equipment, send Enhanced Handover Complete message to CN, the A interface that this message is carried out between call migration and CN and the T-BSS for T-BSS request core net is set up.
Wherein, the handoff completion message of enhancing comprises connection identifier, current speech version, transport layer address, parameters such as QOS.
507, after the CN call migration is finished, reply Enhanced Handover Complete Ack (affirmation is finished in the switching of enhancing) message to T-BSS, notice T-BSS migration is finished.
Wherein, the switching of enhancing is finished acknowledge message and is comprised connection identifier, transport layer address, parameters such as QOS.
508, CN initiates the Iu release message to RNS.
509, T-BSS initiates the Iur-g release message to S-BSS.
A kind of changing method that the embodiment of the invention provides, source base station subsystem judges that subscriber equipment is in Iur-g connection hold mode after 3G network switches to the 2G network, and there is the Iur-g interface between current source base station subsystem and handover-target base station subsystem, then, source base station subsystem can directly be carried out handover request by having Iur-g interface and subsystem of objective base station between source base station subsystem and handover-target base station subsystem, thereby finish the handoff procedure of subscriber equipment, with need comparing by the switching that the RNS cooperation is finished between BSS of mentioning in the prior art, the embodiment of the invention can directly be carried out information interaction by the Iur-g interface between the BSS, finish the process of switching, thereby optimized the flow process of switching again, shortened switching time again.
Further, the changing method of the subscriber equipment that the embodiment of the invention provides between base station sub-system can also directly be finished request message by T-BSS transmission enhancing switching and finish subscriber equipment in call migration and the foundation of the A interface between core net and the T-BSS of core net.
Show that as Fig. 6 be a kind of switching device shifter that the embodiment of the invention provides, this device specifically comprises:
Handover request receiving element 601, be used for when subscriber equipment when being in the connection hold mode after first network switches to second network, by the interface between source base station subsystem and subsystem of objective base station in second network, the handover request that the reception sources base station sub-system sends.
Wherein, first network is 3G network, second network is the 2G network, connecting hold mode is that subscriber equipment switches to the Iur-g interface connection hold mode that is in behind the 2G network from 3G network, accordingly, handover request receiving element 601 is used for: when after subscriber equipment switches to the 2G network from 3G network, being in Iur-g interface connection hold mode, and by the Iur-g interface between the endogenous BSS of 2G network and the target BS S, the handover request that reception sources BSS sends.
Resource is distributed subelement, is used for the handover request according to 601 receptions of handover request receiving element, is user equipment allocation Radio Resource and respective channel;
The response subelement is used for sending handoff response to source base station subsystem, switches so that the source base station subsystem notifying user equipment is carried out system;
The message sink subelement is used for receiving the handoff completion message that subscriber equipment sends.
Realizing that S-BSS and T-BSS finish in the process of switching, this device can also comprise:
Message sending unit is used for sending handoff completion message to core network, so that core net is finished call migration and core net indication RNS discharges the Iu resource;
The message sink unit, acknowledge message is finished in the switching that is used for the transmission of reception core net.
Realizing that S-BSS and T-BSS finish in the process of switching, this device can also comprise:
The resource release message transmitting element is used for sending release Iur-g message related to resources to source base station subsystem.
Show that as Fig. 7 be a kind of communication system that the embodiment of the invention provides, this system comprises: aforesaid switching device shifter 701, and the source base station subsystem 702 of communicating by letter with switching device shifter; The source base station subsystem 702 of wherein, communicating by letter with switching device shifter comprises:
Judging unit switches to the Iur-g interface connection hold mode that is in behind the 2G network for judging that subscriber equipment is in from 3G network;
The handover request transmitting element is used for sending handover request by the Iur-g interface between source base station subsystem S-BSS in the 2G network and subsystem of objective base station T-BSS to subsystem of objective base station T-BSS;
The handoff response receiving element is used for the handoff response that receiving target base station sub-system T-BSS sends;
Switch unit is used for according to the handoff response that receives subscriber equipment being switched to subsystem of objective base station T-BSS.
Realizing that S-BSS and T-BSS finish in the process of switching, this source base station subsystem 702 can also comprise:
The switching command transmitting element is used for sending switching command to subscriber equipment.
Realizing that S-BSS and T-BSS finish in the process of switching, this source base station subsystem 702 can also comprise:
The message sink unit is used for the release Iur-g message related to resources that the receiving target base station sub-system sends.
A kind of changing method that the embodiment of the invention provides, device and system, source base station subsystem S-BSS judges that subscriber equipment is in Iur-g interface connection hold mode after 3G network switches to the 2G network, and there is the Iur-g interface between current source base station subsystem S-BSS and handover-target base station subsystem T-BSS, then, source base station subsystem is by existing Iur-g interface and subsystem of objective base station T-BSS directly to carry out handover request between source base station subsystem S-BSS and handover-target base station subsystem T-BSS, thereby finish the handoff procedure of subscriber equipment, with need comparing by the switching that the RNS cooperation is finished between BSS of mentioning in the prior art, the embodiment of the invention can directly be carried out information interaction by the Iur-g interface between the BSS, finish the process of switching, thereby optimized the flow process of switching again, shortened switching time again.
The changing method of the subscriber equipment that the embodiment of the invention provides between base station sub-system, can also directly send to strengthen to switch by T-BSS and finish request message, finish subscriber equipment and set up at call migration and the A interface between core net and the T-BSS of core net.
Through the above description of the embodiments, one of ordinary skill in the art will appreciate that: realize that all or part of step in above-described embodiment method is to instruct relevant hardware to finish by program, described program can be stored in the computer read/write memory medium, this program is when carrying out, comprise the step as above-mentioned method embodiment, described storage medium, as: ROM/RAM, magnetic disc, CD etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (7)
1. a changing method is characterized in that, comprising:
When subscriber equipment connects hold mode from being in after first network switches to second network, by the interface between source base station subsystem BSS and subsystem of objective base station BSS in described second network, receive the handover request that described source base station subsystem sends;
According to described handover request, switch described subscriber equipment;
Wherein, described first network is 3G network, and described second network is the 2G network, and described connection hold mode is that described subscriber equipment switches to the Iur-g interface connection hold mode that is in behind the 2G network from 3G network,
Described by the interface between source base station subsystem in described second network and subsystem of objective base station, receive the handover request that described source base station subsystem sends, comprising:
By the Iur-g interface between the endogenous BSS of described 2G network and the target BS S, receive the handover request that described source BSS sends;
Described according to described handover request, switch the step of described subscriber equipment, comprising:
According to described handover request, be described user equipment allocation Radio Resource and respective channel;
Send handoff response to described source base station subsystem, switch so that described source base station subsystem notifies described subscriber equipment to carry out system;
Receive the handoff completion message that described subscriber equipment sends.
2. changing method according to claim 1 is characterized in that, this method also comprises:
Connect between described subsystem of objective base station and the core net, and send handoff completion message to core network, so that described core net is finished call migration and core net indication RNS discharges the Iu resource;
Acknowledge message is finished in the switching that receives described core net transmission.
3. method according to claim 1 and 2 is characterized in that, described subscriber equipment is finished in the process of the switching between base station sub-system, and this method also comprises:
Send release Iur-g message related to resources to described source base station subsystem.
4. a switching device shifter is characterized in that, comprising:
The handover request receiving element, be used for when subscriber equipment when being in the connection hold mode after first network switches to second network, by the interface between source base station subsystem and subsystem of objective base station in described second network, receive the handover request that described source base station subsystem sends;
Switch unit is used for according to described handover request, switches described subscriber equipment;
Wherein, described first network is 3G network, and described second network is the 2G network, and described connection hold mode is that described subscriber equipment switches to the Iur-g interface connection hold mode that is in behind the 2G network from 3G network,
Described handover request receiving element is used for: when being in Iur-g interface connection hold mode after described subscriber equipment switches to the 2G network from 3G network, by the Iur-g interface between the endogenous BSS of described 2G network and the target BS S, receive the handover request that described source BSS sends;
Described switch unit comprises:
Resource is distributed subelement, is used for according to described handover request, is described user equipment allocation Radio Resource and respective channel;
The response subelement is used for sending handoff response to described source base station subsystem, switches so that described source base station subsystem notifies described subscriber equipment to carry out system;
The message sink subelement is used for receiving the handoff completion message that described subscriber equipment sends.
5. switching device shifter according to claim 4 is characterized in that, this device also comprises:
Message sending unit is used for sending handoff completion message to core network, so that core net is finished call migration and core net indication RNS discharges the Iu resource;
The message sink unit, acknowledge message is finished in the switching that is used for the described core net transmission of reception.
6. according to any described switching device shifter in the claim 4 to 5, it is characterized in that this device also comprises:
The resource release message transmitting element is used for sending release Iur-g message related to resources to described source base station subsystem.
7. a communication system is characterized in that, comprise as each described switching device shifter of claim 4 to 6, and the source base station subsystem of communicating by letter with described switching device shifter.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102068277A CN102045799B (en) | 2009-10-16 | 2009-10-16 | Switching method, device and system |
| PCT/CN2010/077664 WO2011044832A1 (en) | 2009-10-16 | 2010-10-12 | Switching method, device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102068277A CN102045799B (en) | 2009-10-16 | 2009-10-16 | Switching method, device and system |
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| CN102045799A CN102045799A (en) | 2011-05-04 |
| CN102045799B true CN102045799B (en) | 2013-10-09 |
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| CN103634929B (en) * | 2013-11-28 | 2017-03-08 | 中国联合网络通信集团有限公司 | The method for switching network of MIFI equipment and system |
| JP2021516476A (en) | 2018-01-16 | 2021-07-01 | オッポ広東移動通信有限公司Ｇｕａｎｇｄｏｎｇ Ｏｐｐｏ Ｍｏｂｉｌｅ Ｔｅｌｅｃｏｍｍｕｎｉｃａｔｉｏｎｓ Ｃｏｒｐ．， Ｌｔｄ． | Handover method, equipment and computer storage media |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048001A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Switchover control method |
| CN101094502A (en) * | 2006-06-23 | 2007-12-26 | 大唐移动通信设备有限公司 | Network architecture, and switching method based on the network architecture |
| CN101426202A (en) * | 2007-11-02 | 2009-05-06 | 华为技术有限公司 | Method, device and system for network switching implementation |
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| CN101203034B (en) * | 2006-12-12 | 2010-12-08 | 华为技术有限公司 | Method, system and equipment for switching grouping switch in downward dual carrying / multi carrying transmission technique |
| EP2206368A1 (en) * | 2007-10-04 | 2010-07-14 | Telefonaktiebolaget LM Ericsson (PUBL) | Inter-system handoff using circuit switched bearers for serving general packet radio service support nodes |
| DK2241156T3 (en) * | 2007-12-20 | 2013-11-18 | Ericsson Telefon Ab L M | A-interface assignment and handover in a radio communication network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101048001A (en) * | 2006-06-22 | 2007-10-03 | 华为技术有限公司 | Switchover control method |
| CN101094502A (en) * | 2006-06-23 | 2007-12-26 | 大唐移动通信设备有限公司 | Network architecture, and switching method based on the network architecture |
| CN101426202A (en) * | 2007-11-02 | 2009-05-06 | 华为技术有限公司 | Method, device and system for network switching implementation |
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| CN102045799A (en) | 2011-05-04 |
| WO2011044832A1 (en) | 2011-04-21 |
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