CN101841879A - Method and equipment for switching service between communication systems - Google Patents
Method and equipment for switching service between communication systems Download PDFInfo
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- CN101841879A CN101841879A CN200910080383A CN200910080383A CN101841879A CN 101841879 A CN101841879 A CN 101841879A CN 200910080383 A CN200910080383 A CN 200910080383A CN 200910080383 A CN200910080383 A CN 200910080383A CN 101841879 A CN101841879 A CN 101841879A
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Abstract
The invention discloses a method and equipment for switching service between communication systems. The method comprises the following steps of: judging whether the communication service of UE needs to be switched from a TD-SCDMA system to a GSM system; when the switch is determined, initiating a repositioning instruction through an Iur-g interface; and executing the switch of the communication service between the systems according to the repositioning instruction. The method and the equipment can reduce the switching delay from TD-SCDMA to GSM, and improve the switching success rate.
Description
Technical field
The present invention relates to communication technical field, business switch method and equipment between particularly a kind of communication system.
Background technology
In the prior art, (Time Division Synchronous CDMA, time-division synchronous CDMA system are one of 3G network standards of 3GPP tissue definition to TD-SCDMA; CDMA:Code Division Multiple Access, code division multiple access inserts) to GSM (Global System for Mobile communication, when global system for mobile communications) switching, carry out according to 2008.12 months TS25.413 agreements of 3GPP R8.
Fig. 1 is the implementing procedure schematic diagram that TD-SCDMA switches to GSM under the TS25.413 agreement, as shown in the figure, and in this flow process:
1, beginning Call Setup Procedure (call setup procedure) in 3G network comprising: RRC connection setup, and security mode control, RAB setup, (RRC connects foundation to etc., safe mode control, RAB foundation etc.; The control of RRC:Radio Resource Control Radio Resource, RAB:Radio access bearer, RAB);
2, UE (User Equipment, subscriber equipment), begin to carry out Measurement Control Procedure (measurement control and management) between source NodeB (source base station), the RNC (Radio Network Controller radio network controller), comprise Measurement control and report (measuring control and report);
3, RNC decision handover decision and target cell is GSM cell (switchover policy and determine that according to strategy Target cell is the GSM sub-district);
4, (the Radio Access Network Application Part of the RANAP on the RAN, the wireless access network applying portion) RANAP on 3G MSC (3rd Generation Mobile Switching Centre, third generation mobile switching centre) sends RELOCATION REQUIRED (reorientation demand) message;
5, (the MAP/E interface: the interface between the MSC-MSC of the MAP/E on the 3G MSC; MAP:Mobile Application Part, mobile application part) send PREPARE HANDOVER (preparing to switch) message to the MAP/E of 2G MSC (2rd Generation Mobile Switching Centre, second generation mobile switching centre);
6, (the Base Station System Management Application Part of the BSSMAP on the 2G MSC, the base station sub-system management is used) send HANDOVER REQUEST (handoff request) message to Target BSC (Target Base Station Controller, target base station controller);
7, the BSSMAP feedback HANDOVER REQUEST ACKNOWLEDGE (Handover Request Acknowledge) of Target BSC on 2G MSC;
8, the MAP/E of MAP/E on 3G MSC on the 2G MSC returns PREPARE HANDOVER RESPONSE (preparation handoff response) response;
9, the RANAP of the RANAP on the 3G MSC on RNC sends RELOCATION COMMAND (repositioning instruction) message;
10, (switching that comprises switching command goes out the UTRAN instruction to the RRC transmission HANDOVER FROM UTRAN COMMAND (Including HANDOVERCOMMAND) of the RRC on the RNC (Radio Resource Control, Radio Resource control) on UE; UTRAN:UMTS Terrestrial Radio Access Network, UMTS Terrestrial radio access network);
11, UE and Target BTS (Target Base Transceiver Station, target BS transceiver) beginning synchronization procedure, etc.with target BTS (with the synchronizing process of target BTS, or the like);
12, the BSSMAP of the BSSMAP on the Target BTS on 2G MSC sends HANDOVERDETECT (change detection) message;
13, the RR of the RR of UE (Radio resource, RRM) on Target BSC returns HANDOVER COMPLETE (switching is finished) message;
14, the BSSMAP of the BSSMAP on the Target BTS on 2G MSC sends HANDOVER COMPLETE (switching is finished) message;
15, the MAP/E of the MAP/E on the 2G MSC on 3G MSC sends SEND END SIGNAL REQUEST (sending the end signal request);
16, UE begins to carry out Iu release Procedure (Iu interface dispose procedure) in 3G network, comprising: Iu release, RRC connection release (Iu release, RRC connect release);
17, the MAP/E of MAP/E on 2G MSC on the 3G MSC returns SEND END SIGNAL RESPONSE (sending the end signal response).
By said process as can be seen, the deficiency that prior art exists is: loaded service is in the process of switching by the GSM carrying of GSM on TD-SCDMA, need by CN (Core Network, core net) carries out reorientation, involve each network element of CN, and mutual complicated, it is bigger to cause switching to delay, the deficiency that success rate is not high.
Summary of the invention
The invention provides business switch method and equipment between a kind of communication system, in order to improve communication service by the TD-SCDMA system to the gsm system success rate for switching.
Business switch method between a kind of communication system is provided in the embodiment of the invention, has comprised the steps:
Need to judge whether communication service to switch to gsm system by the TD-SCDMA system with UE;
When determining to need to switch, initiate repositioning instruction by the Iur-g interface;
According to repositioning instruction to switching between described communication service executive system.
Preferably, described according to repositioning instruction to switching between described communication service executive system, comprising:
Gsm system is determined behind the Target cell in Target cell application resource according to repositioning instruction;
Gsm system application resource success back notice RNC;
RNC judges whether UE to be switched and the TD-SCDMA system;
Definite need switch when indication UE and switch and the TD-SCDMA system;
Gsm system finishes reorientation to the CN request after the UE switching is finished;
CN switches to gsm system with described communication service path from the TD-SCDMA system after receiving described request.
Preferably, described gsm system application resource success back is triggered RNC indication UE and is switched and the TD-SCDMA system, comprising:
After the success of gsm system application resource, send Enhanced Relocation Request ACK message, indicate UE to switch in order to triggering RNC and the TD-SCDMA system by the Iur-g interface.
Preferably, carry Container information in described Enhanced Relocation Request ACK message, described Container information comprises the information that sends to UE.
Preferably, described RNC indication UE switches and the TD-SCDMA system, comprising:
RNC switches by Handover From UTRAN Command message indication UE and the TD-SCDMA system.
Preferably, judge whether to need UE is switched when the TD-SCDMA system, comprising at described RNC:
Determine whether that indicating UE to switch by Handover From UTRAN Command message the TD-SCDMA system;
When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
Preferably, described gsm system finishes reorientation to the CN request after the UE switching is finished, comprising:
Gsm system finishes reorientation by Enhanced Relocation Complete Request message to the CN request after the UE switching is finished.
Preferably, after described communication service path is switched to gsm system from the TD-SCDMA system, further comprise:
CN is to gsm system feedback Enhanced Relocation Complete Response message;
CN initiates Iu to RNC and discharges request message.
Preferably, further comprise:
RNC indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message;
After determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
Preferably, further comprise:
In described repositioning instruction, carry the Target cell tabulation;
When between to described communication service executive system, switching, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
Preferably, described repositioning instruction is an Enhanced Relocation Request message.
Preferably, further comprise: in Enhanced Relocation Request message, do not carry the transport layer address.
Preferably, further comprise:
When gsm system is determined to handle Enhanced Relocation Request message, to RNC feedback Enhanced Relocation Failure message.
The embodiment of the invention also provides a kind of radio network controller, comprising:
The switching judging module is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system;
The reorientation module is used for initiating repositioning instruction by the Iur-g interface when determining to need to switch.
Preferably, further comprise:
Switch indicating module, be used to indicate UE to switch and the TD-SCDMA system.
Preferably, described switching indicating module is further used for receiving gsm system sends Enhanced Relocation Request ACK message by the Iur-g interface after, and indication UE switches and the TD-SCDMA system.
Preferably, described switching indicating module is further used for switching by Handover From UTRAN Command message indication UE and the TD-SCDMA system.
Preferably, described switching indicating module is further used for switching when the TD-SCDMA system at described RNC indication UE, determines whether to switch by Handover From UTRAN Command message indication UE the TD-SCDMA system; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
Preferably, further comprise:
The Iu release module is used to receive CN and initiates Iu release request message, and discharges the Iu interface resource.
Preferably, described reorientation module be further used for the indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message, after determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
Preferably, described reorientation module is further used for carrying the Target cell tabulation in described repositioning instruction, and described Target cell tabulation is the foundation of gsm system application resource.
Preferably, described reorientation module is further used for Enhanced Relocation Request message is initiated as repositioning instruction.
Preferably, described reorientation module is further used for not carrying the transport layer address in Enhanced Relocation Request message.
Preferably, described reorientation module is further used for receiving the Enhanced Relocation Failure message of feeding back to RNC when gsm system is determined to handle Enhanced Relocation Request message.
A kind of professional system of switching that carries out between communication system is provided again in the embodiment of the invention, has comprised:
RNC is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system, when determining to need to switch, initiates repositioning instruction by the Iur-g interface;
Gsm system is used for determining behind the Target cell in Target cell application resource according to repositioning instruction, and triggers described RNC indication UE in application resource success back and switch and the TD-SCDMA system;
Gsm system also is used for finishing reorientation to the CN request after the UE switching is finished;
CN is used for after receiving described end re-positioning request described communication service path being switched to gsm system from the TD-SCDMA system.
Preferably, described gsm system is further used for after the success of application resource, sends Enhanced Relocation Request ACK message by the Iur-g interface, switches in order to triggering RNC indication UE the TD-SCDMA system.
Preferably, described RNC is further used for switching by Handover From UTRAN Command message indication UE and the TD-SCDMA system.
Preferably, described RNC is further used for switching when the TD-SCDMA system at indication UE, determines whether to switch by Handover From UTRAN Command message indication UE the TD-SCDMA system; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
Preferably, described gsm system is further used for finishing reorientation by Enhanced Relocation Complete Request message to the CN request after the UE switching is finished.
Preferably, described CN is further used for after described communication service path is switched to gsm system from the TD-SCDMA system, to gsm system feedback Enhanced Relocation Complete Response message; Initiate Iu to RNC and discharge request message.
Preferably, described RNC be further used for indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message; After determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
Preferably, described RNC is further used for carrying the Target cell tabulation in described repositioning instruction;
When described gsm system is further used for switching between to described communication service executive system, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
Preferably, described RNC is further used for Enhanced Relocation Request message as repositioning instruction.
Preferably, described RNC is further used for not carrying the transport layer address in Enhanced Relocation Request message.
Preferably, gsm system is further used for when determining to handle Enhanced Relocation Request message, to RNC feedback Enhanced Relocation Failure message.
Beneficial effect of the present invention is as follows:
In the invention process, need at first to judge whether communication service to switch to gsm system by the TD-SCDMA system with UE; When determining to need to switch, initiate repositioning instruction by the Iur-g interface; Then according to repositioning instruction to switching between described communication service executive system.Because in the invention process is by the Iur-g interface, directly initiating reorientation to the BSC of gsm system by RNC indicates and triggers the switching flow of communication service between system, therefore the network element that relates in the service switch process between system reduces in a large number, simultaneously make that also switching flow is simple and clear, effectively reduced mutual complexity; Obviously, network element reduces when relating to, when Signalling exchange reduces, must make also that switching delays shortening, success rate for switching also is improved.
Further, also provide various processing schemes in the enforcement, further shortened to switch and delayed, improved success rate for switching abnormal conditions.
Further, also by in repositioning instruction, carrying the Target cell tabulation, increased the resource washability of gsm system in the enforcement, further shortened to switch and delayed, improved success rate for switching.
Description of drawings
Fig. 1 is the implementing procedure schematic diagram that TD-SCDMA switches to GSM under the TS25.413 agreement in the background technology;
Fig. 2 is the business switch method implementing procedure schematic diagram between communication system in the embodiment of the invention;
Fig. 3 be in the embodiment of the invention according to repositioning instruction to switching the implementing procedure schematic diagram between the communication service executive system;
Fig. 4 is that the business between communication system is switched example implementing procedure schematic diagram in the embodiment of the invention;
Fig. 5 is a radio network controller structural representation in the embodiment of the invention;
Fig. 6 is for carrying out the professional system configuration schematic diagram that switches between communication system in the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
The inventor notices in the invention process: for make two generation network and the three generations can better intercommunication, 3GPPGERAN (GPRS EDGE RAN) BSC that working group increased and the interface between the RNC: Iur-g interface.
Therefore, can transmit signaling, trigger the service switch process of carrying out between TD-SCDMA and the GSM by the Iur-g interface, too much in order to the CN network element that the switching that reduces existence in the prior art involves, and mutual complicated, it is bigger to cause switching to delay, the deficiency that success rate is not high.
Fig. 2 is the business switch method implementing procedure schematic diagram between communication system, as shown in the figure, can comprise the steps:
When step 202, definite need the switching, initiate repositioning instruction by the Iur-g interface;
In the enforcement, in step 201, can judge by the 3A measurement report.
3A measurement report: in 3GPP standard 25.331, stipulated the method for reporting of the measurement report between a series of different systems, comprising incident 3A, its signal quality that is meant the TD-SCDMA network that subscriber equipment inserts is lower than a certain thresholding, when simultaneously the signal quality of another gsm system is higher than a certain thresholding, trigger measurement report, network is specified the required relevant parameter of 3A incident, when network side is received the 3A event report, just can initiate the switching of TD-SCDMA to gsm system.
In step 201, be not limited in the 3A measurement report and can trigger switching, in fact, this step is to be solved in fact to be to know that communication service need carry out switching between system, therefore, so long as the report of similar 3A measurement report character, incident, indication, instruction etc. all can be used as the foundation that judges whether to need the communication service of UE is switched to by the TD-SCDMA system gsm system.
In the step 202, when determining to need to switch, initiate repositioning instruction by the Iur-g interface.As the above analysis, transmit signaling by the Iur-g interface, trigger the service switch process of carrying out between TD-SCDMA and the GSM, just can reduce the network element that in switching, relates to, in the implementation process, only relate to the BSC and the RNC at Iur-g interface two ends in the enforcement, as a same reason, this has also simplified mutual flow process, has reduced to switch to delay, and has improved success rate for switching.
After receiving repositioning instruction, just can execution in step 203, according to repositioning instruction to switching between described communication service executive system.Fig. 3 be according to repositioning instruction to switching the implementing procedure schematic diagram between the communication service executive system, as shown in the figure, carry out when switching and can comprise:
In the enforcement, repositioning instruction should be carried target cell information, gsm system just can determine to switch the required Target cell in back according to repositioning instruction like this, and in this sub-district application resource, concrete, repositioning instruction can adopt Enhanced Relocation Request (re-positioning request of enhancing) message, but, so long as can carry target cell information, and trigger the GSM network and apply for that in this sub-district the instruction of resource can be used for implementing, and is not limited in this a kind of message of Enhanced Relocation Request.
When handoff procedure is when triggering because of the 3A measurement report, the target cell information that carries in the repositioning instruction can obtain from this report, and is corresponding, if other reason triggers, also can obtain target cell information from events corresponding.
In the enforcement, after the success of gsm system application resource, can send Enhanced Relocation Request ACK (re-positioning request of enhancing is confirmed) message by the Iur-g interface, indicate UE to switch in order to triggering RNC and the TD-SCDMA system, the purpose of this message is to inform that RNC is ready in the resource of GSM network, can carry out professional the switching, therefore, be not limited in this a kind of message of Enhanced Relocation Request ACK in the enforcement, the message that can reach this purpose all can adopt.
Further, in Enhanced Relocation Request ACK message, can also carry Container information, comprise the information that sends to UE in the described Container information.
Container is the signaling of a GSM, looks like to be container; CN, RNC do not resolve the content of Container the inside, and therefore to CN, RNC, this is a container.The information of the inside can comprise information such as the working frequency points of UE behind the GSM, working time slot.
In the enforcement, switch when the TD-SCDMA system at RNC indication UE, RNC can switch by Handover From UTRAN Command (switch UTRAN order) message indication UE and the TD-SCDMA system, in the enforcement, so long as the command messages that can indicate UE to switch TD-SCDMA all can adopt, and and needn't only limit to this a kind of message of Handover From UTRAN Command.
In the enforcement, gsm system is after the UE switching is finished, can finish reorientation to the CN request by Enhanced Relocation Complete Request (request is finished in the reorientation of enhancing) message, use in subsequent step for CN the transport address that can carry BSC in this message.The purpose of this message is to inform that by BSC the switching of CN business finishes in the enforcement, make CN can proceed the following program that the communication service path is switched to GSM from TD-SCDMA, therefore, all can adopt as long as can reach message, the signaling of this purpose, and needn't only limit to this a kind of message of Enhanced Relocation Complete Request.
So far, the communication service of UE just switches to gsm system from the TD-SCDMA system, has finished professional switching between system, but also need carry out some normal service response, therefore can further include following steps:
Concrete, this message should feed back to the BSC of gsm system.
Concrete, this message feedback be RNC in the TD-SCDM system.
Delay to the switching of GSM in order further to reduce TD, improve handover success rate, making also provides the processing scheme that occurs when unusual in the eyesight, describe below.
1, when execution in step 301, after gsm system is received Enhanced Relocation Request message, when gsm system is determined to handle Enhanced Relocation Request message, to RNC feedback Enhanced Relocation Failure (the reorientation failure of enhancing) message, so that RNC in time learns failures in resource application, be convenient to end or initiate again repositioning instruction.
2, when execution in step 302, determine whether that further indicating UE to switch by Handover From UTRANCommand message the TD-SCDMA system;
When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel (the reorientation cancellation of enhancing) message to gsm system, so that GSM in time discharges the application resource by Handover From UTRAN Command message indication UE.
3, in execution in step 302, may further include:
RNC indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message; After determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system, so that GSM in time discharges resource.
The inventor is also noted that in the invention process: in 2008.12 months TS25.423 agreements of 3GPP R8, the Iur-g interface is RNC (TD-SCDMA), interface between the BSC (GSM), at present in the Iur-g interface, the messaging list and the process of definition are as shown in the table, a reorientation Relocation Commit message is only arranged, yet Ding Yi Relocation Commit is used to finish GRA_PCH (GERAN (GPRS EDGE Radio Access Network) routing Aera_Paging Channel here, channel is sought _ exhaled to the GERAN paging domain) repositioning process of state, it can not finish the reorientation of describing in the embodiment of the invention.
Wherein: Relocation Execution (reorientation execution)
This function allows the SBSS/SRNC to finalise a Relocation previously prepared via other interfaces (this function allows SBSS/SRNC (Serving BSS/RNC, serving BS broadcasts S/RNC) to finish a previous repositioning process of preparing by other interface).
Therefore, in present Relocation Require message, only carry a target GSM sub-district, the deficiency of its existence is: if this sub-district is in GSM resources in network deficiency, then cause switching the subsequent process failure, need RNC to reselect the GSM sub-district, initiate to switch, success rate is not high like this, switches to delay greatly.
Given this, can further include in force:
In repositioning instruction, carry the Target cell tabulation;
When between to the communication service executive system, switching, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
Concrete, when repositioning instruction is an Enhanced Relocation Request message, RNC is when sending Enhanced Relocation Request message to BSC by the Iur-g interface, can in this message, not only carry professional indicate (for example speech business), also carry the Target cell tabulation, do not carry the transport layer address, thereby make the BSC in the GSM network to indicate according to business, in the Target cell tabulation, select the application of only sub-district to distribute resources such as interface-free resources, BTS resource, the inner TC of BSC.
Accordingly, because a more than optional sub-district in the cell list, also just avoided because of only carrying after a target GSM sub-district causes switching subsequent process and fail, need RNC to reselect the GSM sub-district, initiate the deficiency of switching, improved success rate, reduced to switch and delayed.
Fig. 4 is that the business between communication system is switched example implementing procedure schematic diagram, in the present embodiment, in the TD-SCDMA system based in RNC, the gsm system based on BSC, the handoff procedure that carries out between these two and UE, the CN is described, then as shown in the figure, can comprise the steps:
The report of RNC analysis to measure, obtain GSM Target cell and BSC information, send Enhanced Relocation Request message to BSC by the Iur-g interface, carry professional indicate (for example speech business), Target cell tabulation in the message, do not carry the transport layer address;
Usually can carry the transport layer address in Enhanced Relocation Request message, this just means in Iur-g, sets up service bearer, in the enforcement, in order to reduce complexity, can therefore can not carry the transport layer address not in Iur-g interface transport service.
BSC indicates according to business, in the Target cell tabulation, select only cell allocation interface-free resources, BTS resource, the inner TC (Transcode of BSC, code converter) etc. after the resource, feed back Enhanced Relocation Request ACK by the Iur-g interface to RNC, expression GSM resource allocation is finished, and carry Container and carry the information that sends to UE, TC is an equipment that the 64K PCM voice of A interface is transformed 13K compressed voice in the Um mouth;
Step 404, RNC send Handover From UTRAN Command message to UE;
Step 405, UE send Handover Complete message to BSC;
After the switching that BSC receives UE is finished, send Enhanced Relocation Complete Request, the transport address of carrying BSC to CN;
CN switches to GSM with service channel from TD after receiving the request of BSC, by Enhanced Relocation Complete Response, feeds back to BSC;
Step 408, CN send Iu Release Command message to RNC;
By this message, CN initiates the Iu dispose procedure.
Based on same inventive concept, a kind of radio network controller also is provided in the embodiment of the invention and between communication system, has carried out the professional system of switching, because the principle that these equipment are dealt with problems is similar to the business switch method between communication system, therefore the enforcement of these equipment can repeat part and not give unnecessary details referring to the enforcement of method.
Fig. 5 is the radio network controller structural representation, as shown in the figure, can comprise in RNC:
Switching judging module 501 is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system;
In the enforcement, the switching judging module can be carried out by receiving or analyze the functional entity that whether needs to switch, for example: the functional entity that can receive the 3A measurement report; The switching judging module also can be the part of RRM module (Radio Resource Managment RRM module), realizes with software, can use it to analyze the measurement report of UE, NB, makes decision-makings such as switching.
The reorientation module then can for example press 2008.12 months TS25.423 agreements of 3GPP R8 by implementing by the functional entity that the Iur-g interface is initiated signaling, and the functional entity of transmission Relocation Commit message just can be used for implementing the reorientation module; The reorientation module can also adopt the protocol process module of IUR-G to utilize software to realize.
Can further include among the RNC:
In the enforcement, this module can be implemented by the functional entity that can indicate UE to switch, for example can send the functional entity of Handover From UTRAN Command message; More specifically, responsible Uu mouth (eating dishes without rice or wine) protocol process module that sends idle message just can be used for implementing.
Switch indicating module and can also be further used for receiving gsm system sends Enhanced Relocation Request ACK message by the Iur-g interface after, indication UE switches and the TD-SCDMA system.
The switching indicating module can be further used for indicating UE to switch by Handover From UTRAN Command message and the TD-SCDMA system.
Switch indicating module and can also be further used for switching when the TD-SCDMA system, determine whether to switch and the TD-SCDMA system by Handover From UTRAN Command message indication UE at described RNC indication UE; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
RNC can further include:
In the enforcement, the reorientation module can also be further used for the indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message, after determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
The reorientation module can be further used for carrying the Target cell tabulation in described repositioning instruction, described Target cell tabulation is the foundation of gsm system application resource.
The reorientation module can be further used for Enhanced Relocation Request message is initiated as repositioning instruction.
The reorientation module can be further used for receiving the Enhanced Relocation Failure message of feeding back to RNC when gsm system is determined to handle Enhanced Relocation Request message.
In the enforcement, the switching judging module can also be further used for need judging whether the communication service with UE to switch to gsm system by the TD-SCDMA system according to the 3A measurement report.
Fig. 6 as shown in the figure, can comprise in this system for carry out the professional system configuration schematic diagram that switches between communication system:
RNC601 is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system, when determining to need to switch, initiates repositioning instruction by the Iur-g interface;
Gsm system also is used for finishing reorientation to the CN request after the UE switching is finished;
CN603 is used for after receiving described end re-positioning request described communication service path being switched to gsm system from the TD-SCDMA system.
In the enforcement, each function of gsm system can specifically be implemented by BSC.
Gsm system can be further used for after the success of application resource, sends Enhanced Relocation Request ACK message by the Iur-g interface, switches in order to triggering RNC indication UE the TD-SCDMA system.
RNC can be further used for indicating UE to switch by Handover From UTRAN Command message and the TD-SCDMA system.
RNC can also be further used for switching when the TD-SCDMA system at indication UE, determines whether to switch by Handover From UTRAN Command message indication UE the TD-SCDMA system; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
Gsm system can be further used for finishing reorientation by Enhanced Relocation Complete Request message to the CN request after the UE switching is finished.
CN can be further used for after described communication service path is switched to gsm system from the TD-SCDMA system, to gsm system feedback Enhanced Relocation Complete Response message; Initiate Iu to RNC and discharge request message.
RNC can also be further used for indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message; After determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
RNC can also be further used for carrying the Target cell tabulation in described repositioning instruction;
When described gsm system is further used for switching between to described communication service executive system, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
RNC can be further used for Enhanced Relocation Request message as repositioning instruction.
In the enforcement, gsm system can also be further used for when determining to handle Enhanced Relocation Request message, to RNC feedback Enhanced Relocation Failure message.
In the enforcement, RNC can need judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system according to the 3A measurement report.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
Because in the invention process is by the Iur-g interface, directly initiating reorientation to the BSC of gsm system by RNC indicates and triggers the switching flow of communication service between system, therefore the network element that relates in the service switch process between system reduces in a large number, simultaneously make that also switching flow is simple and clear, effectively reduced mutual complexity; Obviously, network element reduces when relating to, when Signalling exchange reduces, must make also that switching delays shortening, success rate for switching also is improved.
Further, also provide various processing schemes in the enforcement, further shortened to switch and delayed, improved success rate for switching abnormal conditions.
Further, also by in repositioning instruction, carrying the Target cell tabulation, increased the resource washability of gsm system in the enforcement, further shortened to switch and delayed, improved success rate for switching.
Therefore, implementing the solution of the present invention can reduce TD-SCDMA and delay to the switching of GSM; Improve handover success rate.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (35)
1. the business switch method between a communication system is characterized in that, comprises the steps:
Need to judge whether communication service to switch to the global system for mobile communications gsm system by TD SDMA access TD-SCDMA system with user equipment (UE);
When determining to need to switch, initiate repositioning instruction by the Iur-g interface;
According to repositioning instruction to switching between described communication service executive system.
2. the method for claim 1 is characterized in that, described according to repositioning instruction to switching between described communication service executive system, comprising:
Gsm system is determined behind the Target cell in Target cell application resource according to repositioning instruction;
Gsm system application resource success back notice radio network controller (RNC);
RNC judges whether UE to be switched and the TD-SCDMA system;
Definite need switch when indication UE and switch and the TD-SCDMA system;
Gsm system sends the end re-positioning request to core net CN after the UE switching is finished;
CN switches to gsm system with described communication service path from the TD-SCDMA system after receiving described request.
3. method as claimed in claim 2 is characterized in that, described gsm system application resource success back is triggered RNC indication UE and switched and the TD-SCDMA system, comprising:
After the success of gsm system application resource, the re-positioning request that sends enhancing by the Iur-g interface is confirmed Enhanced Relocation Request ACK message, switches in order to triggering RNC indication UE the TD-SCDMA system.
4. method as claimed in claim 3 is characterized in that, carries Container information in described Enhanced Relocation Request ACK message, and described Container information comprises the information that sends to UE.
5. method as claimed in claim 2 is characterized in that, described RNC indication UE switches and the TD-SCDMA system, comprising:
RNC UTRAN order Handover From UTRAN Command message indication UE and switches and the TD-SCDMA system by switching.
6. method as claimed in claim 2 is characterized in that, judges whether to need UE is switched when the TD-SCDMA system at described RNC, comprising:
Determine whether that indicating UE to switch by Handover From UTRAN Command message the TD-SCDMA system;
When determining not to switch when the TD-SCDMA system, send the reorientation cancellation Enhanced Relocation Cancel message that strengthens to gsm system by Handover From UTRAN Command message indication UE.
7. method as claimed in claim 2 is characterized in that, described gsm system sends the end re-positioning request to CN after the UE switching is finished, comprising:
Gsm system is finished request Enhanced Relocation Complete Request message by the reorientation that strengthens and is sent the end re-positioning request to CN after the UE switching is finished.
8. as the arbitrary described method of claim 2 to 7, it is characterized in that, after described communication service path is switched to gsm system from the TD-SCDMA system, further comprise:
Response Enhanced Relocation Complete Response message is finished in the reorientation that CN strengthens to the gsm system feedback;
CN initiates Iu to RNC and discharges request message.
9. method as claimed in claim 2 is characterized in that, further comprises:
RNC indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message;
After determining not receive that CN initiates Iu release request message, send the reorientation cancellation Enhanced Relocation Cancel message that strengthens to gsm system.
10. as the arbitrary described method of claim 1 to 9, it is characterized in that, further comprise:
In described repositioning instruction, carry the Target cell tabulation;
When between to described communication service executive system, switching, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
11. method as claimed in claim 10 is characterized in that, the re-positioning request Enhanced Relocation Request message of described repositioning instruction for strengthening.
12. method as claimed in claim 3 is characterized in that, further comprises:
In Enhanced Relocation Request message, do not carry the transport layer address.
13. as claim 11 or 12 described methods, it is characterized in that, further comprise:
When gsm system is determined to handle Enhanced Relocation Request message, to the reorientation failure Enhanced of RNC feedback enhancing Relocation Failure message.
14. a radio network controller is characterized in that, comprising:
The switching judging module is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system;
The reorientation module is used for initiating repositioning instruction by the Iur-g interface when determining to need to switch.
15. radio network controller as claimed in claim 14 is characterized in that, further comprises:
Switch indicating module, be used to indicate UE to switch and the TD-SCDMA system.
16. radio network controller as claimed in claim 15, it is characterized in that, described switching indicating module is further used for receiving gsm system sends Enhanced Relocation RequestACK message by the Iur-g interface after, and indication UE switches and the TD-SCDMA system.
17. radio network controller as claimed in claim 15 is characterized in that, described switching indicating module is further used for indicating UE to switch by Handover From UTRAN Command message and the TD-SCDMA system.
18. radio network controller as claimed in claim 15, it is characterized in that, described switching indicating module is further used for switching when the TD-SCDMA system at described RNC indication UE, determines whether to switch by Handover From UTRAN Command message indication UE the TD-SCDMA system; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
19. as the arbitrary described radio network controller of claim 14 to 18, it is characterized in that, further comprise:
The Iu release module is used to receive CN and initiates Iu release request message, and discharges the Iu interface resource.
20. radio network controller as claimed in claim 15, it is characterized in that, described reorientation module be further used for the indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message, after determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
21., it is characterized in that described reorientation module is further used for carrying the Target cell tabulation as the arbitrary described radio network controller of claim 14 to 20 in described repositioning instruction, described Target cell tabulation is the foundation of gsm system application resource.
22. radio network controller as claimed in claim 21 is characterized in that, described reorientation module is further used for Enhanced Relocation Request message is initiated as repositioning instruction.
23. radio network controller as claimed in claim 22 is characterized in that, described reorientation module is further used for not carrying the transport layer address in Enhanced Relocation Request message.
24. as claim 22 or 23 described radio network controllers, it is characterized in that described reorientation module is further used for receiving the Enhanced Relocation Failure message of feeding back to RNC when gsm system is determined to handle Enhanced Relocation Request message.
25. one kind is carried out the professional system of switching between communication system, it is characterized in that, comprising:
RNC is used to need to judge whether the communication service with UE to switch to gsm system by the TD-SCDMA system, when determining to need to switch, initiates repositioning instruction by the Iur-g interface;
Gsm system is used for determining behind the Target cell in Target cell application resource according to repositioning instruction, and triggers described RNC indication UE in application resource success back and switch and the TD-SCDMA system;
Gsm system also is used for sending the end re-positioning request to CN after the UE switching is finished;
CN is used for after receiving described end re-positioning request described communication service path being switched to gsm system from the TD-SCDMA system.
26. system as claimed in claim 25, it is characterized in that, described gsm system is further used for after the success of application resource, sends Enhanced Relocation Request ACK message by the Iur-g interface, switches in order to triggering RNC indication UE the TD-SCDMA system.
27. system as claimed in claim 25 is characterized in that, described RNC is further used for indicating UE to switch by Handover From UTRAN Command message and the TD-SCDMA system.
28. system as claimed in claim 25 is characterized in that, described RNC is further used for switching when the TD-SCDMA system at indication UE, determines whether to switch by Handover From UTRANCommand message indication UE the TD-SCDMA system; When determining not to switch when the TD-SCDMA system, send Enhanced Relocation Cancel message to gsm system by Handover From UTRAN Command message indication UE.
29. system as claimed in claim 25 is characterized in that, described gsm system is further used for sending the end re-positioning request by Enhanced Relocation Complete Request message to CN after the UE switching is finished.
30. as the arbitrary described system of claim 25 to 29, it is characterized in that, described CN is further used for after described communication service path is switched to gsm system from the TD-SCDMA system, to gsm system feedback Enhanced Relocation Complete Response message; Initiate Iu to RNC and discharge request message.
31. system as claimed in claim 25 is characterized in that, described RNC be further used for indication UE switch the TD-SCDMA system after, judge whether to receive that CN initiates Iu and discharges request message; After determining not receive that CN initiates Iu release request message, send Enhanced Relocation Cancel message to gsm system.
32., it is characterized in that described RNC is further used for carrying the Target cell tabulation as the arbitrary described system of claim 25 to 31 in described repositioning instruction;
When described gsm system is further used for switching between to described communication service executive system, according to the Target cell after the definite described communication service switching of described Target cell tabulation.
33. system as claimed in claim 32 is characterized in that, described RNC is further used for Enhanced Relocation Request message as repositioning instruction.
34. system as claimed in claim 33 is characterized in that, described RNC is further used for not carrying the transport layer address in Enhanced Relocation Request message.
35., it is characterized in that gsm system is further used for when determining to handle Enhanced Relocation Request message as claim 33 or 34 described systems, to RNC feedback Enhanced Relocation Failure message.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910080383A CN101841879A (en) | 2009-03-20 | 2009-03-20 | Method and equipment for switching service between communication systems |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910080383A CN101841879A (en) | 2009-03-20 | 2009-03-20 | Method and equipment for switching service between communication systems |
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| CN200910080383A Pending CN101841879A (en) | 2009-03-20 | 2009-03-20 | Method and equipment for switching service between communication systems |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457925A (en) * | 2010-10-14 | 2012-05-16 | 大唐移动通信设备有限公司 | Switching processing method of user equipment and equipment |
| CN102761927A (en) * | 2011-04-25 | 2012-10-31 | 刘燕 | Communication switching system control method |
| CN103428793A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Intersystem switching processing method, switching method and switching device |
| CN104303556A (en) * | 2012-12-31 | 2015-01-21 | 华为技术有限公司 | Method for sharing wireless network, radio network controller, and core network |
-
2009
- 2009-03-20 CN CN200910080383A patent/CN101841879A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102457925A (en) * | 2010-10-14 | 2012-05-16 | 大唐移动通信设备有限公司 | Switching processing method of user equipment and equipment |
| CN102761927A (en) * | 2011-04-25 | 2012-10-31 | 刘燕 | Communication switching system control method |
| CN103428793A (en) * | 2012-05-14 | 2013-12-04 | 中兴通讯股份有限公司 | Intersystem switching processing method, switching method and switching device |
| CN104303556A (en) * | 2012-12-31 | 2015-01-21 | 华为技术有限公司 | Method for sharing wireless network, radio network controller, and core network |
| CN104303556B (en) * | 2012-12-31 | 2018-01-16 | 华为技术有限公司 | Method, radio network controller and the core net of shared wireless network |
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