CN101902787A - Resource correlation method and system in reposition - Google Patents
Resource correlation method and system in reposition Download PDFInfo
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- CN101902787A CN101902787A CN200910085523XA CN200910085523A CN101902787A CN 101902787 A CN101902787 A CN 101902787A CN 200910085523X A CN200910085523X A CN 200910085523XA CN 200910085523 A CN200910085523 A CN 200910085523A CN 101902787 A CN101902787 A CN 101902787A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
Abstract
The invention discloses a resource correlation method and a system in reposition. In the scheme of the invention, when UE requires to carry out reposition, after a target wireless access controller distributes wireless resource for the UE, a reposition identification number identifying the wireless resource is distributed for the UE and is transmitted by wireless resource response sent to a resource wireless access controller by the target wireless access controller, reposition requirement instruction sent to CN by the resource wireless access controller and the reposition information sent to the target wireless access controller by the CN; according to the reposition identification number of the received reposition information, the target wireless access controller associates the resource between the wireless access controller and CN distributed for the UE with the wireless resource distributed for the corresponding UE; and thus, in quick reposition treatment, resource distributed for the UE between the wireless access controller and CN is associated with the wireless resource distributed for the corresponding UE.
Description
Technical field
The present invention relates to moving communicating field, be meant resource correlation method and system in a kind of reorientation especially.
Background technology
In the mobile communication system, the user is keeping professional situation upper/lower positions often to change, if the wireless signal of the cell-of-origin at Radio Access Controller judgement subscriber equipment (UE, User Equipment) place covers die down, will select wireless signal to cover better Target cell and switch.Radio Access Controller can be the radio network controller in the 3G mobile communication system (RNC, Radio Network Controllcr), also can be the base station controller in the 2G mobile communication system (BSC, Base Station Controller).
When not belonging to same Radio Access Controller management if the wireless access network type of cell-of-origin and Target cell is identical, the switching of UE is referred to as reorientation in the system; If the wireless access network type of cell-of-origin and Target cell is not simultaneously, the switching of UE is referred to as reorientation between system.
In the present mobile communication system, in the system in 2G mobile communication system and the 3G mobile communication system between reorientation and system the processing procedure of reorientation as follows:
Step 101～step 102: Radio Access Controller under the cell-of-origin, to be the source Radio Access Controller determine that according to the measurement report of UE needs initiate reorientation, to core net (CN, Core Network) initiate the reorientation requirement, this reorientation carries target cell information in requiring.
The target cell information that step 103:CN carries in requiring according to the reorientation of receiving, is that the Target Wireless access controller is initiated RELOCATION REQUEST message at the Radio Access Controller under Target cell.
Step 104: after the Target Wireless access controller is received RELOCATION REQUEST message, be the UE distributing radio resource at Target cell, in the resource of Target cell ready and and CN between resource ready after, respond the re-positioning request acknowledge message to CN.
After step 105:CN receives the re-positioning request acknowledge message, send the reorientation order to the source Radio Access Controller, the notification source Radio Access Controller carries out the switching of UE.
Step 106: after the source Radio Access Controller is received the reorientation order, send switching command to UE, notice UE initiates to switch, and carries target cell information in this switching command.
After step 107:UE receives switching command, switch, switch according to the target cell information notification target Radio Access Controller that carries in the switching command and finish.
Step 108: after the Target Wireless access controller received that UE switches the notice of finishing, notice CN reorientation was finished.
After step 109:CN received the notice that the reorientation of Target Wireless access controller finishes, the notification source Radio Access Controller discharged the related resource of UE.
Step 110: after the source Radio Access Controller is received the notice that discharges the UE related resource, the related resource of UE is discharged, and notice CN has finished the release of UE related resource.
Each step of above process is that serial is carried out in time, this make step 101～step 106 during this period of time in, UE is still at the Radio Resource that uses the cell-of-origin, if the UE translational speed is very fast, the wireless signal of cell-of-origin will worsen rapidly, cause the UE reorientation failed probability can be than higher.
At above-mentioned situation, a kind of relocation loading mode has been proposed, by between Radio Access Controller, increasing the time delay that interaction message shortens relocation process, realize quick reorientation, thereby improve the success rate of reorientation.In the processing procedure of this relocation loading mode, need will for the UE assigned radio resource be associated with resource between the CN for the Radio Access Controller of this UE distribution.But, for will never having corresponding solution, and then make this relocation loading mode effectively to realize for the specific implementation that UE assigned radio resource and the Radio Access Controller that distributes for this UE are associated with resource between the CN.
Summary of the invention
In view of this, main purpose of the present invention is to provide resource correlation method and the system in a kind of reorientation, the resource between the Radio Access Controller that will distribute for UE and the CN be associated for the corresponding UE assigned radio resource.
For achieving the above object, technical scheme of the present invention is achieved in that
Resource correlation method in a kind of reorientation, when UE need carry out reorientation, this method comprises: after the Target Wireless access controller is the user equipment (UE) distributing radio resource, be the reorientation identifier of this Radio Resource of UE allocation identification, this reorientation identifier is sent to the reorientation message that the Radio Resource response of source Radio Access Controller, reorientation that the source Radio Access Controller is sent to core net CN require to instruct, CN is sent to the Target Wireless access controller by the Target Wireless access controller successively and transmits; The Target Wireless access controller is according to the reorientation identifier in the reorientation message of receiving, the resource between the Radio Access Controller that will distribute for UE and the CN be associated for the corresponding UE assigned radio resource.
Definite process that described UE need carry out reorientation specifically comprises: the source Radio Access Controller determines that according to the load and/or the disturbed condition of UE sub-district, current place and Target cell the UE needs carry out reorientation; And/or the sub-district, current place that the source Radio Access Controller measures according to UE and the signal strength signal intensity of Target cell determine that the UE needs carry out reorientation.
Resource between described Radio Access Controller and the CN: by CN is that UE distributes, or is that UE distributes by the Target Wireless access controller; And/or, the source Radio Access Controller sends described reorientation requirement instruction to CN, this method further comprises: when CN sends described reorientation requirement instruction or postpone setting-up time at interval, the source Radio Access Controller sends switching command to UE at the source Radio Access Controller; And/or, when described Target Wireless access controller is received from the handoff completion message of UE, also do not receive reorientation message from CN, this method further comprises: the Target Wireless access controller wait for to receive the described reorientation message from CN, sends relocation commit message to CN after receiving described reorientation message; And/or the Target Wireless access controller is received after the described reorientation message, further comprised: the Target Wireless access controller sends relocation detect-message to CN after detecting the UE access.
Described setting-up time is spaced apart: the source Radio Access Controller sends reorientation to CN and requires to instruct and receive time interval from the repositioning instruction of CN, with the source Radio Access Controller to UE send switching command receive from the absolute time in time interval of the handoff completion message of UE to the Target Wireless access controller poor; Perhaps, according to the time span of the empirical value configuration of reorientation test.
Described reorientation requires to comprise at least in instruction and the described reorientation message: contain the field of reorientation identifier, this field is that the source Radio Access Controller is to the Target Wireless access controller information.
Resource between the described Radio Access Controller that will distribute for UE according to the reorientation identifier and the CN be associated for the corresponding UE assigned radio resource, specifically comprise: extract the reorientation identifier from field source Radio Access Controller to the Target Wireless access controller information, the resource between the Radio Access Controller that will distribute for UE according to this reorientation identifier and the CN be associated for the corresponding UE assigned radio resource.
Described source Radio Access Controller to Target Wireless access controller information is: source RNC is to the Target RNC transparent transmission information; Perhaps, old BSS is to the information of new BSS.
Resource interconnected system in a kind of reorientation, this system comprises: the source Radio Access Controller, Target Wireless access controller and CN, wherein, described Target Wireless access controller is used to the UE distributing radio resource, and be the reorientation identifier of this Radio Resource of UE allocation identification, send the Radio Resource response that carries the reorientation identifier to the source Radio Access Controller, when receiving the reorientation message from CN, the resource between the Radio Access Controller that will distribute for UE according to the reorientation identifier in this reorientation message and the CN be associated for the corresponding UE assigned radio resource; Described source Radio Access Controller is used to receive the Radio Resource response from the Target Wireless access controller, and requires instruction to be sent to CN by reorientation described reorientation identifier; Described CN is used for described reorientation identifier is sent to the Target Wireless access controller by reorientation message.
CN also is used to the resource between UE distribution Radio Access Controller and the CN, or the Target Wireless access controller also is used to the resource between UE distribution Radio Access Controller and the CN; And/or, when described Target Wireless access controller is received from the handoff completion message of UE, also do not receive reorientation message from CN, described Target Wireless access controller is further used for waiting for the described reorientation message of reception from CN, receives after the described reorientation message to send relocation commit message to CN; And/or the Target Wireless access controller is further used for that UE is inserted signal and detects, and detects UE and inserts the back to CN transmission relocation detect-message.
Described reorientation requires to comprise at least in instruction and the described reorientation message: contain the field of reorientation identifier, this field is that the source Radio Access Controller is to the Target Wireless access controller information; Further, described source Radio Access Controller to Target Wireless access controller information is: source RNC is to the Target RNC transparent transmission information; Perhaps, old BSS is to the information of new BSS.
In relevant the present invention program's the quick repositioning process, under the prerequisite of the protocol message of the existing reorientation flow process that does not change Radio Access Controller and CN and UE, between Radio Access Controller, increase interaction message, when the Target Wireless access controller is the UE distributing radio resource at Target cell, also distribute a reorientation identifier; The source Radio Access Controller is initiated reorientation to CN and is required instruction, this reorientation requires to carry the reorientation identifier in the instruction, this reorientation identifier is sent to the Target Wireless access controller by reorientation message, make that the Target Wireless access controller can be according to the reorientation identifier in the reorientation message of receiving, the resource between the Radio Access Controller that will distribute for UE and the CN be associated for the corresponding UE assigned radio resource.
In addition, because the source Radio Access Controller is sending the switching command of eating dishes without rice or wine to UE behind the certain hour when CN initiates reorientation message or at interval, make eat dishes without rice or wine parallel the carrying out of reorientation set-up procedure between handoff procedure and Access Network and the CN of UE, shortened repositioning process total time, be the reorientation time delay, improve the reorientation success rate.
The present invention does not need to revise wireless access net controller and CN, and the protocol message flow process of UE, can directly use in existing 2G mobile communication system and 3G mobile communication system.
Description of drawings
Fig. 1 is existing reorientation flow chart;
Fig. 2 is quick reorientation implementation one flow chart among the present invention;
Fig. 3 is quick reorientation implementation two flow charts among the present invention;
Fig. 4 is reorientation schematic flow sheet in the CS domain system of UMTS among the present invention;
Fig. 5 is UMTS reorientation schematic flow sheet between the CS of GSM domain system among the present invention;
Fig. 6 is the treatment system structural representation in the quick reorientation among the present invention.
Embodiment
Among the present invention, when UE need carry out reorientation, after the Target Wireless access controller is the UE distributing radio resource, be the reorientation identifier (Relocation Identifier) of this Radio Resource of UE allocation identification, this reorientation identifier is sent to the reorientation message that the Radio Resource response of source Radio Access Controller, reorientation that the source Radio Access Controller is sent to CN require to instruct, CN is sent to the Target Wireless access controller by the Target Wireless access controller successively and transmits; The Target Wireless access controller is according to the reorientation identifier in the reorientation message of receiving, the resource between the Radio Access Controller that will distribute for UE and the CN be associated for the corresponding UE assigned radio resource.Resource between described Radio Access Controller and the CN specifically is meant the resource between Target Wireless access controller and the CN, can be that UE distributes by CN, can be that UE distributes by the Target Wireless access controller also.
Reorientation requires in the instruction, because field source Radio Access Controller to the content of Target Wireless access controller information is transparent for CN, CN can intactly be forwarded to the Target Wireless access controller with this field, therefore, can transmit the reorientation identifier by this field.That is to say, when Radio Access Controller is RNC, reorientation requires the instruction positioning requirements message of attaching most importance to, field source RNC in the reorientation requirement message is transparent to the content of Target RNC transparent transmission information (Source RNC To Target RNC Transparent Information, Source RNC To Target RNC Transparent Container) for CN, and CN intactly is forwarded to Target RNC with this field; Radio Access Controller is BSC, reorientation requires instruction to require message for switching, the content of switching the information (OldBSS To New BSS Information) of the extremely new BSS of the old BSS of field that requires in the message is transparent for CN, and CN intactly is forwarded to target BS C with this field.
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 2 is quick reorientation implementation one flow chart among the present invention, and the concrete processing procedure of reorientation implementation one may further comprise the steps fast:
Step 201: the source Radio Access Controller determines to need to initiate the reorientation of UE, send radio resource request to the Target Wireless access controller, request is the UE distributing radio resource at Target cell, carries information such as UE sign, UE present type of service, Target Cell Identifier in this radio resource request.
The source Radio Access Controller determine to need is initiated specifically being treated to of reorientation of UE: the sub-district, current place that the source Radio Access Controller measures according to the load of UE sub-district, current place and Target cell and/or disturbed condition and/or UE and the signal strength signal intensity of Target cell judge whether to initiate reorientation to Target cell.For example, a little less than the source Radio Access Controller finds that UE current place that report, that measure cell signal strength, and the Target cell signal strength signal intensity is stronger, determines to initiate the reorientation of UE; And for example, Radio Access Controller finds that the traffic load of sub-district, the current place of UE is too high, and the traffic load of Target cell is relatively low, determines to initiate the reorientation of UE.
Has logic interfacing between the Radio Access Controller, this logic interfacing is the IUR interface between the RNC in the 3G mobile communication system, or be IUR-G interface between the BSC in the 2G mobile communication system, or the IUR-G interface between 3G mobile communication system RNC and the 2G mobile communication system BSC.Like this, the source Radio Access Controller can by and the Target Wireless access controller between logic interfacing send radio resource request.
Step 202: after the Target Wireless access controller is received radio resource request, at Target cell is the UE distributing radio resource, and be the reorientation identifier of this Radio Resource of UE allocation identification, respond the Radio Resource response to the source Radio Access Controller then, carry the UE sign in this Radio Resource response, be UE assigned radio resource information, reorientation identifier, can also further carry information such as Target Cell Identifier.
Correspondingly, the Target Wireless access controller can by and the source Radio Access Controller between logic interfacing send the Radio Resource response.
Step 203～step 204: after the source Radio Access Controller is received the Radio Resource response, send reorientation to CN and require instruction, and, send switching command to UE simultaneously.Described this reorientation requires the field source Radio Access Controller of instruction to comprise the reorientation identifier to the Target Wireless access controller information, and described reorientation requires also to carry in the instruction UE sign and Target Cell Identifier.Carrying at Target cell in the described switching command is UE assigned radio resource information.
After step 205:CN receives reorientation requirement instruction, send reorientation message according to Target Cell Identifier to the Target Wireless access controller, carry UE sign and reorientation identifier in this reorientation message, the reorientation identifier is comprised by field source Radio Access Controller to Target Wireless access controller information.
Step 206: on time sequencing, compare with the time of receiving the handoff completion message that UE responds, the Target Wireless access controller has been received the reorientation message from CN earlier, extract the reorientation identifier from field source Radio Access Controller to the Target Wireless access controller information, resource between the Radio Access Controller that will distribute for UE according to this reorientation identifier and the CN with for the corresponding UE assigned radio resource is associated, respond relocation commit message to CN then.Resource between Radio Access Controller and the CN can be that UE distributes by CN, and CN can will inform the Target Wireless access controller for Radio Access Controller and the resource between the CN that UE distributes by reorientation message; Can after the Target Wireless access controller is received reorientation message, be that UE distributes also by the Target Wireless access controller.
After step 207:CN receives relocation commit message, send repositioning instruction to the source Radio Access Controller.
After step 208:UE receives switching command from the source Radio Access Controller, according to switching for its assigned radio resource information at Target cell, switch finish after, respond handoff completion message to the Target Wireless access controller.
Order before and after step 207 can not have significantly with step 208 in time promptly can be carried out simultaneously, also can one in front and one in back carry out.
Step 209: after the Target Wireless access controller is received handoff completion message, send reorientation to CN and finish instruction.
After step 210～step 211:CN receives that instruction is finished in reorientation, send resource to the source Radio Access Controller and release order.After the source Radio Access Controller receives that resource releases order, discharge the employed resource of UE, respond the resource Release complete to CN then.
The Target Wireless access controller inserts signal to UE and detects, after receiving the reorientation message in the step 205, if having detected UE inserts at the wireless channel of appointment, detect UE perhaps and insert at the wireless channel of appointment, the Target Wireless access controller just sends relocation detect-message to CN.
CN judges that according to Target Cell Identifier current reorientation is the reorientation of CN inside or the reorientation between the CN after receiving that the reorientation in the step 203 requires instruction.If current reorientation is the reorientation of CN inside, i.e. CN before and after the reorientation is identical, and then subsequent processes and Fig. 2 are drawn identical.If current reorientation is the reorientation between the CN, it is the CN difference before and after the reorientation, at this moment, it is source CN that reorientation in the receiving step 203 requires the CN of instruction, in the subsequent processes, unillustratedly among Fig. 2 be: source CN provides the field source Radio Access Controller that comprises the reorientation identifier to the Target Wireless access controller information to target CN, then target CN execution in step 205; The CN of relocation commit message is target CN in the receiving step 206, and target CN notification source CN sends repositioning instruction, source CN execution in step 207 to the source Radio Access Controller then; The CN that instruction is finished in reorientation in the receiving step 209 is target CN, and target CN notification source CN indication source Radio Access Controller discharges resource then, source CN execution in step 210, and the CN of the resource Release complete in the receiving step 211 is source CN.
Fig. 3 is quick reorientation implementation two flow charts among the present invention, and as shown in Figure 3, the concrete processing procedure of reorientation implementation two may further comprise the steps fast:
Step 301～step 302 is identical with step 201～step 202.
Step 303～step 304: after the source Radio Access Controller is received the Radio Resource response, send reorientation to CN and require instruction; And, picking up counting when reorientation requires instruction from sending to CN, behind the delay setting-up time interval, the source Radio Access Controller sends switching command to UE.Described this reorientation requires the field source Radio Access Controller of instruction to comprise the reorientation identifier to the Target Wireless access controller information, and described reorientation requires also to carry in the instruction UE sign and Target Cell Identifier.Carrying at Target cell in the described switching command is UE assigned radio resource information.
Setting-up time interlude length can be meant that rule of thumb the statistics obtains.For example, the source Radio Access Controller sends reorientation to CN and requires to instruct and receive time interval from the repositioning instruction of CN, the source Radio Access Controller sends switching command to UE and receives time interval from the handoff completion message of UE to the Target Wireless access controller, with the absolute time difference in these two time intervals as the setting-up time interval; And for example, the time span in the configuration settings time interval according to a preconcerted arrangement; For another example, according to the time span in empirical value configuration settings time interval of reorientation test.The value of the above time span can be zero or other positive numbers.
Step 305: on time sequencing, compare with receiving the time from the reorientation message of CN, the Target Wireless access controller has been received the handoff completion message that UE responds earlier, waits for the reorientation message that receives from CN then.
Step 306 is identical with step 205.
Step 307: after the Target Wireless access controller is received reorientation message, extract the reorientation identifier from field source Radio Access Controller to the Target Wireless access controller information, resource between the Radio Access Controller that will distribute for UE according to this reorientation identifier and the CN with for the corresponding UE assigned radio resource is associated, respond relocation commit message to CN then.Resource between Radio Access Controller and the CN can be that UE distributes by CN, divides timing by CN, and CN can inform that the Target Wireless access controller is the Radio Access Controller of UE distribution and the resource between the CN by reorientation message; Can after the Target Wireless access controller is received reorientation message, be that UE distributes also by the Target Wireless access controller.
Step 308:, therefore, send reorientation to CN and finish instruction because the Target Wireless access controller has been received the handoff completion message from UE.
Step 309 is identical with step 207.
Step 310～step 311 is identical with step 210～step 211.
Order before and after step 308 can not have significantly with step 309 in time promptly can be carried out simultaneously, also can one in front and one in back carry out.
The Target Wireless access controller inserts signal to UE and detects, after receiving the reorientation message in the step 306, if having detected UE inserts at the wireless channel of appointment, detect UE perhaps and insert at the wireless channel of appointment, the Target Wireless access controller just sends relocation detect-message to CN.
CN judges that according to Target Cell Identifier current reorientation is the reorientation of CN inside or the reorientation between the CN after receiving that the reorientation in the step 303 requires instruction.If current reorientation is the reorientation of CN inside, then subsequent processes and Fig. 3 are drawn identical.If current reorientation is the reorientation between the CN, the follow-up concrete processing and the description of Fig. 2 latter end are basic identical, do not repeat them here.
Fig. 4 is universal mobile telecommunications system (UMTS among the present invention, Universal MobileTelecommunications System) reorientation schematic flow sheet in circuit switching (CS) domain system, as shown in Figure 4, in this example, Target RNC and source RNC belong to same CN, and, in concrete processing procedure, Target RNC is received the RELOCATION REQUEST message from CN earlier, after receive handoff completion message from UE.The concrete processing procedure that realizes quick reorientation may further comprise the steps:
Step 401～step 402:UE has successfully set up the CS business in the sub-district 1 of source RNC.After UE moved, source RNC determined that according to the measurement report of UE needs initiate the reorientation of UE, and the sub-district 2 of select target RNC is as Target cell.Source RNC sends radio resource request by the IUR interface to Target RNC, and request 2 is the UE distributing radio resource in the sub-district, carries information such as UE sign, UE present type of service, sub-district 2 signs in this radio resource request.The signal of entrained particular content is as shown in table 1 in the radio resource request that transmits between the RNC.
| Field name | The value explanation |
| The UE ability | Comprise abilities such as wireless access technology that UE supports, type of service |
| Cell ID | The sign of Target cell |
| Type of service | The type of service of the resource of request reorientation |
| The UE sign | The sign of the UE of reorientation can be the IMSI of UE or SRNTI (the interim UE sign of source RNC) etc. |
Table 1
Step 403: after Target RNC is received radio resource request, 2 is the UE distributing radio resource in the sub-district, and be the reorientation identifier of this Radio Resource of UE allocation identification, respond the Radio Resource response by the IUR interface to source RNC then, carry the UE sign in this Radio Resource response, be UE assigned radio resource information, reorientation identifier, can also further carry information such as sub-district 2 signs.The signal of entrained particular content is as shown in table 2 in the Radio Resource response that transmits between the RNC.
| Field name | The value explanation |
| The UE sign | The sign of the UE of reorientation can be the IMSI of UE or SRNTI (the interim UE sign of source RNC) etc. |
| Radio Resource | At Target cell is the UE assigned radio resource |
| The reorientation identifier | Target RNC is unique identifier that UE distributes, when being used to receive RELOCATION REQUEST message, and the Radio Resource that inquiry is corresponding |
Table 2
Step 404～step 405: after source RNC receives the Radio Resource response, send reorientation to CN and require message; And, when sending reorientation requirement message, CN picks up counting, and behind the delay setting-up time interval, source RNC sends the 3G switching command message to UE.
Described this reorientation requires the field source RNC of message to comprise the reorientation identifier to Target RNC transparent transmission information (Source RNCTo Target RNC Transparent Container), and described reorientation requires also to carry in the message UE sign and sub-district 2 signs.Carry in the sub-district 2 in the described 3G switching command message and be UE assigned radio resource information.
Setting-up time is to dispose according to the empirical value that reorientation is tested at interval, as 500ms, 0ms or other numerical value.
The signal of the particular content that field source RNC is comprised to the Target RNC transparent transmission information (Source RNC To Target RNC TransparentContainer) is as shown in table 3.
| Field element |
| RRC container (RRC Container) |
| Iu example number (Number of Iu Instances) |
| Reorientation type (Relocation Type) |
| The protection algorithm integrallty of selecting (Chosen Integrity Protection Algorithm) |
| Many rate configuration information (MultiRate configuration information) |
| ?...... |
| Reorientation identifier (Relocation Identifier) |
Table 3
After step 406:CN receives reorientation requirement message, determine that according to sub-district 2 signs current reorientation is the reorientation of CN inside, be the resource between UE distribution Target RNC and the CN then, and send RELOCATION REQUEST message to Target RNC according to sub-district 2 sign, carry UE sign and reorientation identifier in this RELOCATION REQUEST message, the reorientation identifier is comprised to the Target RNC transparent transmission information by field source RNC, also carries RNC that promising UE distributes and the resource between the CN in this RELOCATION REQUEST message.
Step 407: on time sequencing, compare with the time of receiving the handoff completion message that UE responds, Target RNC has been received the RELOCATION REQUEST message from CN earlier, extract the reorientation identifier from field source RNC to the Target RNC transparent transmission information, according to this reorientation identifier with the resource between the RNC that carries in the RELOCATION REQUEST message, distribute for UE and the CN with for the corresponding UE assigned radio resource is associated, then to CN response re-positioning request acknowledge message.
After step 408:CN receives the re-positioning request acknowledge message, send the reorientation command messages to source RNC.
After step 409:UE receives 3G switching command message from source RNC, according to 2 switch in the sub-district, switch for its assigned radio resource information finish after, respond handoff completion message to Target RNC.
Step 410: after Target RNC is received handoff completion message, send reorientation to CN and finish message.
After step 411～step 412:CN receives that message is finished in reorientation, send the IU release command message to source RNC.After source RNC receives the IU release command message, discharge the employed related resource of UE, respond the IU Release complete to CN then.
Target RNC inserts signal to UE and detects, after receiving the RELOCATION REQUEST message in the step 406, insert at the wireless channel of appointment if detected UE, perhaps detect afterwards UE and insert at the wireless channel of appointment, Target RNC just sends relocation detect-message to CN.
Fig. 5 for UMTS among the present invention to global system for mobile communications (GSM, reorientation schematic flow sheet between CS domain system Global System ForMobile Communication), as shown in Figure 5, in this example, target BS C belongs to different CN with source RNC, and, in concrete processing procedure, Target RNC is received the handoff completion message from UE earlier, after receive RELOCATION REQUEST message from CN.The concrete processing procedure that realizes quick reorientation may further comprise the steps:
Step 501～step 502:UE has successfully set up the CS business in the sub-district 1 of source RNC.After UE moved, source RNC determined that according to the measurement report of UE needs initiate the reorientation of UE, and the sub-district 2 of select target BSC is as Target cell.Source RNC sends radio resource request by the IUR-G interface to target BS C, and request 2 is the UE distributing radio resource in the sub-district, carries information such as UE sign, UE present type of service, sub-district 2 signs in this radio resource request.The signal of entrained particular content is as shown in table 4 in the radio resource request that transmits between RNC and the BSC.
| Field name | The value explanation |
| The UE ability | Comprise abilities such as wireless access technology that UE supports, type of service |
| The cell number sign | The sign of Target cell is as CGI |
| Type of service | The type of service of the resource of request reorientation |
| The UE sign | The sign of the UE of reorientation can be the IMSI of UE or SRNTI etc. |
Table 4
Step 503: after target BS C receives radio resource request, 2 is the UE distributing radio resource in the sub-district, and be the reorientation identifier of this Radio Resource of UE allocation identification, respond the Radio Resource response by the IUR-G interface to source RNC then, carry the UE sign in this Radio Resource response, be UE assigned radio resource information, reorientation identifier, can also further carry information such as sub-district 2 signs.The signal of entrained particular content is as shown in table 5 in the Radio Resource response that transmits between BSC and the RNC.
Table 5
Step 504～step 505: after source RNC receives the Radio Resource response, send reorientation to CN and require message, and, send the 2G switching command message to UE simultaneously.
Described this reorientation requires the field source BSC of message to comprise the reorientation identifier to target BS C information (Old BSS to NewBSS information), and described reorientation requires also to carry in the message UE sign and sub-district 2 signs.Carry in the sub-district 2 in the described 2G switching command message and be UE assigned radio resource information.
The signal of the particular content that is comprised in the extremely new BSC information (Old BSS to New BSS information) of the old BSC of field is as shown in table 6.
| Field element |
| Extraneous information (Extra information) |
| Current channel type 2 (Current Channel Type 2) |
| Target cell wireless messages (Target cell radio information) |
| GPRS hangs up information (GPRS Suspend information) |
| Many rate configuration information (MultiRate configuration information) |
| ?...... |
| Reorientation identifier (Relocation Identifier) |
Table 6
Step 506: on time sequencing, compare with receiving the time from the handoff request message of CN, target BS C has received the handoff completion message that UE responds earlier, waits for the handoff request message that receives from CN then.
After step 507:CN receives reorientation requirement message, determine that according to sub-district 2 signs current reorientation is the reorientation between the CN, this CN is source CN, therefore, source CN provides the old BSC of the field that comprises the reorientation identifier to new BSC information to target CN, target CN sends handoff request message according to sub-district 2 signs to target BS C, carries UE sign and reorientation identifier in this handoff request message, and the reorientation identifier is comprised by the extremely new BSC information of the old BSC of field.
After step 508: target BS C receives handoff request message, be the resource between UE distribution BSC and the CN, and extraction reorientation identifier from the old BSC of field to new BSC information, according to this reorientation identifier with the resource between BSC and the CN with for the corresponding UE assigned radio resource is associated, respond switching request acknowledgement message to target CN then.
Step 509:, therefore, send handoff completion message to target CN because target BS C has received the handoff completion message from UE.
Step 510: after target CN received switching request acknowledgement message, notification source CN sent the reorientation command messages to source RNC, and source CN sends the reorientation command messages to source RNC.
Step 511～step 512: source CN sends the IU release command message to source RNC.After source RNC receives the IU release command message, discharge the employed related resource of UE, respond the IU Release complete to source CN then.
Target BS C inserts signal to UE and detects, after receiving the handoff request message in the step 507, insert at the wireless channel of appointment if detected UE, perhaps detect afterwards UE and insert at the wireless channel of appointment, target BS C just sends relocation detect-message to target CN.
Fig. 6 is the treatment system structural representation in the quick reorientation among the present invention, as shown in Figure 6, this system comprises: the source Radio Access Controller, Target Wireless access controller and CN, wherein, the Target Wireless access controller is used to the UE distributing radio resource, and be the reorientation identifier of this Radio Resource of UE allocation identification, send the Radio Resource response carry the reorientation identifier to the source Radio Access Controller, and according to the resource between the Radio Access Controller that will distribute for UE and the CN from the reorientation identifier of CN be associated for the corresponding UE assigned radio resource; The source Radio Access Controller is used to receive the Radio Resource response from the Target Wireless access controller, and requires instruction to be sent to CN by reorientation described reorientation identifier; CN is used for described reorientation identifier is sent to the Target Wireless access controller by reorientation message.
CN also is used to the resource between UE distribution Radio Access Controller and the CN; Perhaps, the Target Wireless access controller also is used to the resource between UE distribution Radio Access Controller and the CN.
Radio Access Controller can be the RNC in the 3G mobile communication system, also can be the BSC in the 2G mobile communication system.
Has logic interfacing between source Radio Access Controller and the Target Wireless access controller, this logic interfacing is the IUR interface between the RNC in the 3G mobile communication system, or be IUR-G interface between the BSC in the 2G mobile communication system, or the IUR-G interface between 3G mobile communication system RNC and the 2G mobile communication system BSC.
When the Target Wireless access controller is received from the handoff completion message of UE, also do not receive reorientation message from CN, the Target Wireless access controller is further used for waiting for the reorientation message of reception from CN, receives after the described reorientation message to send relocation commit message to CN.
Reorientation requires to comprise at least in instruction and the reorientation message: contain the field of reorientation identifier, this field is that the source Radio Access Controller is to the Target Wireless access controller information.Source Radio Access Controller to Target Wireless access controller information is the information of RNC to Target RNC transparent transmission information or the extremely new BSS of old BSS.
The Target Wireless access controller is further used for that UE is inserted signal and detects, and detects UE and inserts the back to CN transmission relocation detect-message.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. the resource correlation method in the reorientation is characterized in that when UE need carry out reorientation, this method comprised:
After the Target Wireless access controller is the user equipment (UE) distributing radio resource, be the reorientation identifier of this Radio Resource of UE allocation identification, this reorientation identifier is sent to the reorientation message that the Radio Resource response of source Radio Access Controller, reorientation that the source Radio Access Controller is sent to core net CN require to instruct, CN is sent to the Target Wireless access controller by the Target Wireless access controller successively and transmits;
The Target Wireless access controller is according to the reorientation identifier in the reorientation message of receiving, the resource between the Radio Access Controller that will distribute for UE and the CN be associated for the corresponding UE assigned radio resource.
2. method according to claim 1 is characterized in that, definite process that described UE need carry out reorientation specifically comprises:
The source Radio Access Controller determines that according to the load and/or the disturbed condition of UE sub-district, current place and Target cell the UE needs carry out reorientation; And/or,
The sub-district, current place that the source Radio Access Controller measures according to UE and the signal strength signal intensity of Target cell determine that the UE needs carry out reorientation.
3. method according to claim 1 is characterized in that,
Resource between described Radio Access Controller and the CN: by CN is that UE distributes, or is that UE distributes by the Target Wireless access controller; And/or,
The source Radio Access Controller sends described reorientation requirement instruction to CN, this method further comprises: when CN sends described reorientation requirement instruction or postpone setting-up time at interval, the source Radio Access Controller sends switching command to UE at the source Radio Access Controller; And/or,
When described Target Wireless access controller is received from the handoff completion message of UE, also do not receive reorientation message from CN, this method further comprises: the Target Wireless access controller wait for to receive the described reorientation message from CN, sends relocation commit message to CN after receiving described reorientation message; And/or,
The Target Wireless access controller is received after the described reorientation message, further comprised: the Target Wireless access controller sends relocation detect-message to CN after detecting the UE access.
4. method according to claim 3 is characterized in that, described setting-up time is spaced apart:
The source Radio Access Controller sends reorientation to CN and requires to instruct and receive time interval from the repositioning instruction of CN, with the source Radio Access Controller to UE send switching command receive from the absolute time in time interval of the handoff completion message of UE to the Target Wireless access controller poor; Perhaps,
The time span that the empirical value of testing according to reorientation disposes.
5. according to the arbitrary described method of claim 1 to 4, it is characterized in that, described reorientation requires to comprise at least in instruction and the described reorientation message: contain the field of reorientation identifier, this field is that the source Radio Access Controller is to the Target Wireless access controller information.
6. method according to claim 5, it is characterized in that, resource between the described Radio Access Controller that will distribute for UE according to the reorientation identifier and the CN be associated for the corresponding UE assigned radio resource, specifically comprise: extract the reorientation identifier from field source Radio Access Controller to the Target Wireless access controller information, the resource between the Radio Access Controller that will distribute for UE according to this reorientation identifier and the CN be associated for the corresponding UE assigned radio resource.
7. method according to claim 5 is characterized in that, described source Radio Access Controller to Target Wireless access controller information is: source RNC is to the Target RNC transparent transmission information; Perhaps, old BSS is to the information of new BSS.
8. the resource interconnected system in the reorientation is characterized in that this system comprises: source Radio Access Controller, Target Wireless access controller and CN, wherein,
Described Target Wireless access controller is used to the UE distributing radio resource, and be the reorientation identifier of this Radio Resource of UE allocation identification, send the Radio Resource response that carries the reorientation identifier to the source Radio Access Controller, when receiving the reorientation message from CN, the resource between the Radio Access Controller that will distribute for UE according to the reorientation identifier in this reorientation message and the CN be associated for the corresponding UE assigned radio resource;
Described source Radio Access Controller is used to receive the Radio Resource response from the Target Wireless access controller, and requires instruction to be sent to CN by reorientation described reorientation identifier;
Described CN is used for described reorientation identifier is sent to the Target Wireless access controller by reorientation message.
9. system according to claim 8 is characterized in that,
CN also is used to the resource between UE distribution Radio Access Controller and the CN, or the Target Wireless access controller also is used to the resource between UE distribution Radio Access Controller and the CN; And/or,
When described Target Wireless access controller is received from the handoff completion message of UE, also do not receive reorientation message from CN, described Target Wireless access controller is further used for waiting for the described reorientation message of reception from CN, receives after the described reorientation message to send relocation commit message to CN; And/or,
The Target Wireless access controller is further used for that UE is inserted signal and detects, and detects UE and inserts the back to CN transmission relocation detect-message.
10. according to Claim 8 or 9 described systems, it is characterized in that,
Described reorientation requires to comprise at least in instruction and the described reorientation message: contain the field of reorientation identifier, this field is that the source Radio Access Controller is to the Target Wireless access controller information;
Further, described source Radio Access Controller to Target Wireless access controller information is: source RNC is to the Target RNC transparent transmission information; Perhaps, old BSS is to the information of new BSS.
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| CN200910085523.XA CN101902787B (en) | 2009-05-25 | 2009-05-25 | Resource correlation method and system in reposition |
| PCT/CN2010/072583 WO2010135952A1 (en) | 2009-05-25 | 2010-05-10 | Method and system for resource association in relocation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547887A (en) * | 2011-01-04 | 2012-07-04 | 鼎桥通信技术有限公司 | Network-striding migrating method and wireless network controller |
| CN102595538A (en) * | 2011-01-12 | 2012-07-18 | 中兴通讯股份有限公司 | Method and system for realizing relocation |
| CN105379355A (en) * | 2013-07-16 | 2016-03-02 | 瑞典爱立信有限公司 | Mobility enhancement in heterogeneous networks |
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| CN1518255A (en) * | 2003-01-13 | 2004-08-04 | ��������ͨ�ż����о�����˾ | Method for moving UE in RRC connection mole |
| CN100393167C (en) * | 2004-08-26 | 2008-06-04 | 中兴通讯股份有限公司 | Method for realizing cell renewal and registered area renewal via Iu port |
| FI20045345A0 (en) * | 2004-09-17 | 2004-09-17 | Nokia Corp | Communication method and network element |
| EP1820301A4 (en) * | 2004-12-09 | 2012-10-17 | Samsung Electronics Co Ltd | Method and system for relocating serving radio network controller in a network sharing system |
| CN101622903A (en) * | 2007-01-29 | 2010-01-06 | 诺基亚公司 | Equipment, the method and computer program product of interoperability between tradition and other RNSs are provided |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547887A (en) * | 2011-01-04 | 2012-07-04 | 鼎桥通信技术有限公司 | Network-striding migrating method and wireless network controller |
| CN102547887B (en) * | 2011-01-04 | 2014-09-17 | 鼎桥通信技术有限公司 | Network-striding migrating method and wireless network controller |
| CN102595538A (en) * | 2011-01-12 | 2012-07-18 | 中兴通讯股份有限公司 | Method and system for realizing relocation |
| CN102595538B (en) * | 2011-01-12 | 2017-08-01 | 中兴通讯股份有限公司 | A kind of method and system for realizing reorientation |
| CN105379355A (en) * | 2013-07-16 | 2016-03-02 | 瑞典爱立信有限公司 | Mobility enhancement in heterogeneous networks |
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| WO2010135952A1 (en) | 2010-12-02 |
| CN101902787B (en) | 2014-02-05 |
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