CN102257852B - Rebuilding method of wireless resource control, user equipment, base station and communication system - Google Patents

Rebuilding method of wireless resource control, user equipment, base station and communication system Download PDF

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CN102257852B
CN102257852B CN201180000959.XA CN201180000959A CN102257852B CN 102257852 B CN102257852 B CN 102257852B CN 201180000959 A CN201180000959 A CN 201180000959A CN 102257852 B CN102257852 B CN 102257852B
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cell
base station
origin
information
source cell
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CN102257852A (en
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张健
王振东
吴联芳
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point

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Abstract

The invention discloses a rebuilding method of wireless resource control, user equipment, a base station and a communication system. The rebuilding method of wireless resource control comprises: during the process of base station switchover, finding source cell information stored in user equipment, according to a cell global identification ECGI of source cell E-UTRAN; and sending request message of wireless resource control carrying the source cell information to the source cell base station of the source cell. The embodiment of the invention can send RRC rebuiding request message to the source cell base station, according to the source cell information stored in the UE, so that the source cell base station can control RRC rebuilding, according to the source cell information before UE switchover, and can reduce drop call rate of the UE during the process of switching between cell base stations.

Description

Rebuilding method of wireless resource control, subscriber equipment, base station and communication system
Technical field
The embodiment of the present invention relates to communication technical field, relates in particular to a kind of rebuilding method of wireless resource control, subscriber equipment, base station and communication system.
Background technology
Existing 3GPP TS36.331 agreement (3GPP TS 36.331V8.13.0 (2011-03), particular content is referring to 3GPP website: http://www.3gpp.org), subscriber equipment (User Equipment; Be called for short: UE) initiate Radio Resource and control (Radio Resource Control; Be called for short: while RRC) rebuilding request, carry customer equipment identification (UE-Identity; Be called for short: UEID) with reconstruction cause value (Reestablishment Cause).Wherein, UEID comprises: Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (Cell Radio Network Temporary Identify; Be called for short: CRNTI), Physical Cell Identifier (Physical Cell Identity; Be called for short: PCI) and the check value of persistent district (short MAC sign Short MAC-I).MAC is writing a Chinese character in simplified form of message authentication code Message Authentication Code.CRNTI is the CRNTI that the former persistent district (being cell-of-origin) of UE is distributed for this UE; PCI is the physical district ID of the former persistent district of UE; Short MAC-I is according to the key of the former persistent district of UE, protection algorithm integrallty, physical district ID, the CRNTI of former persistent district distribution and the COMPREHENSIVE CALCULATING check values out such as global cell, Target cell ID (CGI:Cell Global Identification) of reconstruction.When base station (eNodeB) receives that the RRC of UE rebuilds request message, first the context that the CRNTI that basis is wherein carried and PCI judge whether to exist this UE, returns to the following message of UE: RRC reestablishment rejected (ReEstablish Reject) message if do not exist; If there is the context of this UE, can also further carry out the verification of Short MAC-I, if verification is not by also returning to the following message of UE: the reestablishment rejected message of RRC.
Signaling interface between base station (eNodeB) in Long Term Evolution communication system (Long Term Evolution, LTE) is: X2 interface.UE for example switches, in (: across the switching of X2 interface) process between base station, in source cell base station, to target cell base station, issue switching command, but target cell base station not yet to core net, initiate that user's face upgrades during this period of time in, it is the PCT of the Target cell of switching that the RRC that UE sends to source cell base station rebuilds the PCI carrying in request message, and the CRNTI carrying is that Target cell is the CRNTI that this UE distributes.Now, source cell base station rebuilds according to RRC these PCIs associated with Target cell and the CRNTI that in request message, carry cannot find corresponding UE context, thereby can refuse this RRC and rebuild, and then may cause UE call drop.
Patent application US20100278037A1 discloses a kind of method of processing identification collision in cordless communication network.
Patent application WO/2010/017961A1 discloses a kind of changing method in cordless communication network.
Summary of the invention
The embodiment of the present invention provides a kind of rebuilding method of wireless resource control, subscriber equipment, base station and communication system, in order to solve prior art UE in switchover procedure between base station, initiate when RRC rebuilds request message to be rejected because carrying the information of switching target small area the defect that reconstruction causes UE call drop, reduce UE cutting off rate in handoff procedure between the station of cell base station.
The embodiment of the present invention provides a kind of rebuilding method of wireless resource control, comprising:
In switchover procedure between base station, according to the E-UTRAN Cell Global Identifier ECGI of cell-of-origin, search the cell-of-origin information of preserving in user equipment (UE);
Source cell base station to described cell-of-origin sends the Radio Resource control reconstruction request message that carries described cell-of-origin information.
The embodiment of the present invention also provides a kind of rebuilding method of wireless resource control, comprising:
When sending handover request message to target cell base station, preserve the intermediate key that described handover request message is carried;
The transparent vessel cell and the described intermediate key that according to described target cell base station, to source cell base station, send, obtain the Short-MAC I of cell-of-origin;
According to the corresponding relation between the Short-MAC I of described cell-of-origin and the customer equipment context information of described cell-of-origin, control described user equipment (UE) and control and rebuild to the Radio Resource of described cell-of-origin.
The embodiment of the present invention also provides a kind of subscriber equipment, comprises screen, internal memory, input/output port and processor, and described processor is for carrying out the rebuilding method of wireless resource control that the embodiment of the present invention provides.
The embodiment of the present invention also provides a kind of subscriber equipment, comprises screen, internal memory, input/output port and processor, and described processor comprises:
Cell-of-origin information searching module, at switchover procedure between base station, searches the cell-of-origin information of preserving in subscriber equipment according to the ECGI of cell-of-origin;
Rebuild request module, for sending to described source cell base station, carry the Radio Resource of described cell-of-origin information and control reconstruction request message.
The embodiment of the present invention also provides a kind of base station, internal memory, input/output port, power amplifier, processor, reflector and receiver, and described processor is for carrying out the rebuilding method of wireless resource control that the embodiment of the present invention provides.
The embodiment of the present invention also provides a kind of base station, comprises internal memory, input/output port, power amplifier, processor, reflector and receiver, and described processor comprises:
Intermediate key is preserved module, for when sending handover request message to target cell base station, preserves the intermediate key that described handover request message is carried;
Check value acquisition module, for transparent vessel cell and the described intermediate key sending to source cell base station according to target cell base station, obtains the Short-MAC I of cell-of-origin;
Rebuild control module, for according to the corresponding relation between the Short-MAC I of described cell-of-origin and the customer equipment context information of described cell-of-origin, control described subscriber equipment and control and rebuild to the Radio Resource of described cell-of-origin.
The embodiment of the present invention also provides a kind of communication system, comprising: subscriber equipment, source cell base station and target cell base station;
Arbitrary described subscriber equipment that described subscriber equipment adopts the embodiment of the present invention to provide; And/or, arbitrary described base station that described source cell base station adopts the embodiment of the present invention to provide;
Described target cell base station, the handover request message sending for receiving described source cell base station; To source cell base station, return to switching response message.
The rebuilding method of wireless resource control of the embodiment of the present invention, subscriber equipment, base station and communication system, can to source cell base station, send RRC according to the cell-of-origin information of preserving in UE and rebuild request message, so that can controlling RRC according to the cell-of-origin information before UE switching, source cell base station rebuilds, can reduce UE cutting off rate in handoff procedure between the station of cell base station, user uses impression more excellent.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic diagram of the rebuilding method of wireless resource control that Fig. 1 provides for the embodiment of the present invention one;
The schematic diagram of the rebuilding method of wireless resource control that Fig. 2 provides for the embodiment of the present invention two;
The schematic diagram of the rebuilding method of wireless resource control that Fig. 3 provides for the embodiment of the present invention three;
The structural representation of the subscriber equipment that Fig. 4 provides for the embodiment of the present invention four;
The structural representation of the subscriber equipment that Fig. 5 provides for the embodiment of the present invention five;
The structural representation of the base station that Fig. 6 provides for the embodiment of the present invention six;
The structural representation of the base station that Fig. 7 provides for the embodiment of the present invention seven;
The structural representation of the communication system that Fig. 8 provides for the embodiment of the present invention eight.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The schematic diagram of the rebuilding method of wireless resource control that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, this rebuilding method of wireless resource control can comprise the following steps:
Step 101, in switchover procedure between base station, according to the E-UTRAN Cell Global Identifier of cell-of-origin (E-UTRAN Cell Global Identity; Be called for short: ECGI) search the cell-of-origin information of preserving in subscriber equipment (UE).Described cell-of-origin information comprises: the short MAC sign Short-MAC I of the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that the Physical Cell Identifier PCI of cell-of-origin, described cell-of-origin are described user equipment allocation and described cell-of-origin;
Particularly, in UE, can preserve a cell information table, as 1 simple examples of following table.This cell information table comprises: the cell-of-origin ECGI of UE before and after switching and the corresponding relation of UE cell information are, (the E-UTRAN CGI of Target cell; Be called for short: ECGI) with the corresponding relation of UE cell information.Cell information comprises: the Physical Cell Identifier of corresponding ECGI (PCI), Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (CRNTI), Short-MAC I.
Table 1 cell information table
ECGI PCI CRNTI Short-MAC I
5 6 7 8
6 7 8 9
Under non-switch instances, in this cell information table, preserve the information of persistent district (cell-of-origin), when switching, at cell information table, increase the information of preserving Target cell.By the time after handover success, just remove cell-of-origin (persistent district before switching) information, can comprise following situation particularly:
Situation one, under non-switch instances, subscriber equipment can be by the corresponding relation of the ECGI of the cell-of-origin of described subscriber equipment and described cell-of-origin information, be saved in the cell information table of described subscriber equipment, wherein, described cell-of-origin can be the persistent district before described subscriber equipment switching.
If the cell-of-origin of situation two described subscriber equipmenies sends handover request message to Target cell, subscriber equipment can be saved in the corresponding relation of the cell information of the ECGI of described Target cell and described Target cell in the cell information table of described subscriber equipment, and the cell information of described Target cell comprises: the Short-MAC I of the Physical Cell Identifier PCT of Target cell, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that described Target cell is described user equipment allocation and described Target cell.
Situation three, after having switched between base station, subscriber equipment can be deleted the corresponding relation of the cell information of the ECGI of described cell-of-origin and described cell-of-origin from the cell information table of described subscriber equipment.
In switchover procedure between base station, source cell base station issues switching command to target cell base station, but target cell base station is not yet initiated the renewal of user's face to core net.If during this period of time UE need to be reconstructed into the cell-of-origin before switching, UE is according to the ECGI of the cell-of-origin obtaining from the system message of cell-of-origin, in the cell information table that UE preserves, find PCI, CRNTI, Short-MAC I to the cell-of-origin of ECGI that should cell-of-origin, then generate RRC and rebuild request message, it is the CRNTI of this UE distribution and the Short-MAC I of cell-of-origin that this RRC rebuilds PCI, the cell-of-origin of in request message, carrying cell-of-origin.
Step 102, to source cell base station, send the Radio Resource carry described cell-of-origin information and control and rebuild request (RRC Reestablishment Request) message.So that the Physical Cell Identifier PCI of the described cell-of-origin that described source cell base station comprises according to described cell-of-origin information, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that described cell-of-origin is described user equipment allocation and the Short-MAC I of described cell-of-origin control described subscriber equipment and control and rebuild (RRC reconstruction) to the Radio Resource of described cell-of-origin.
In switchover procedure between base station, cell-of-origin receives that the RRC that this UE sends rebuilds request message, because handoff procedure now not yet finishes, the contextual information of UE is not yet deleted, source cell base station can be rebuild the described cell-of-origin information of carrying in request message according to RRC and be found the contextual information to UE that should cell-of-origin information, is therefore achieved UE and rebuilds successfully.
The present embodiment is the improvement of carrying out in UE side.Can to source cell base station, send RRC according to the cell-of-origin information of preserving in UE and rebuild request message, so that can controlling RRC according to the cell-of-origin information before UE switching, source cell base station rebuilds, avoid in switchover procedure between base station UE to initiate only to carry target cell information when RRC rebuilds and rebuild by source cell base station refusal the UE call drop producing, can reduce the cutting off rate of UE in switchover procedure between base station.
Embodiment bis-
The schematic diagram of the rebuilding method of wireless resource control that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, this rebuilding method of wireless resource control can comprise the following steps:
Step 201, when sending handover request message to target cell base station, preserve the intermediate key that described handover request message is carried;
Step 202, the transparent vessel cell (Target eNB to Source eNB Transparent Container) and the described intermediate key that according to target cell base station, to source cell base station, send, obtain the Short-MAC I of cell-of-origin;
Wherein, step 202 specifically can comprise:
If receive the switching response message that target cell base station is returned, the transparent vessel cell that the switching response message sending from target cell base station to source cell base station is carried, resolve and obtain the Physical Cell Identifier PCT of Target cell, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that Target cell is described user equipment allocation and the protection algorithm integrallty of Target cell;
The request of obtaining sends to the intermediate key of described target cell base station while switching;
According to the protection algorithm integrallty of described intermediate key and described Target cell, calculate the integrity protection key of described Target cell;
The Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that is described user equipment allocation according to the protection algorithm integrallty of the Physical Cell Identifier PCT of the integrity protection key of described Target cell, Target cell, Target cell, Target cell and the ECGI of cell-of-origin, calculate the Short-MAC I of described cell-of-origin.
Step 203, according to the corresponding relation between the Short-MAC I of described cell-of-origin and the customer equipment context information of described cell-of-origin, control described subscriber equipment and control and rebuild to the Radio Resource of described cell-of-origin.Source cell base station can be according to the Short-MAC I of described cell-of-origin, and the corresponding relation between the Short-MAC I of described cell-of-origin and the UE contextual information of described cell-of-origin finds corresponding UE contextual information.
The present embodiment is the improvement of carrying out in base station side, the source cell base station side that needs of sending by parsing target cell base station side passes through the transparent vessel cell of UE, source cell base station can find corresponding UE contextual information according to the Short-MAC I of described cell-of-origin, is therefore achieved UE and rebuilds successfully.Avoid in switchover procedure between base station UE to return to cell-of-origin and carry out RRC reconstruction and refused by source cell base station, can reduce UE cutting off rate in handoff procedure between the station of cell base station.
Embodiment tri-
The schematic diagram of the rebuilding method of wireless resource control that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, in switchover procedure between base station, in source cell base station, issue switching command, the path of initiating UE to target cell base station to core net switch (PATH SWITCH) front during this period of time in, in order to prevent rebuilding back source cell base station and refused because UE carries target cell information, this rebuilding method of wireless resource control specifically can comprise the following steps:
Step 301, when source cell base station sends handover request message to target cell base station, source cell base station can preserve send to target cell base station intermediate key (for example: K eNB*).Wherein, K eNB*for using the key of integrality cryptographic algorithm between UE and eNodeB, specifically can be referring to 3GPP TS24.301V8.9.0 (2011-03) agreement, 3GPP TS 33.401V8.7.0 (2010-04) agreement, particular content is referring to 3GPP website: http://www.3gpp.org);
Step 302, source cell base station receive after the handoff response that target cell base station returns, and transparent vessel (Transparent Container) cell sending from target cell base station to source cell base station, resolving and obtaining Target cell is the CRNTI that distributes of UE and the protection algorithm integrallty of Target cell;
Step 303, source cell base station are according to the intermediate key (K preserving in the protection algorithm integrallty of above-mentioned Target cell and above-mentioned steps 301 eNB*) calculate the integrity protection key (K of Target cell rRCint).Wherein, K rRCintintegrity protection key for RRC signaling;
Step 304, source cell base station are according to the integrity protection key (K calculating in step 303 rRCint), the ECGI of cell-of-origin is, the CRNTI that the Target cell obtaining in the protection algorithm integrallty of the PCI of Target cell, Target cell and step 302 is UE to be distributed; can calculate the Short MAC-I of cell-of-origin, this Short MAC-I is the check value (Short MAC-I) that UE carries the cell-of-origin that need to use while carrying out verification when target cell information RRC is reconstructed into cell-of-origin.Source cell base station is further mated preservation by the Short MAC-I of this cell-of-origin with cell-of-origin UE contextual information.That is, keep the Short MAC-I of cell-of-origin, cell-of-origin UE contextual information, and the mapping relations between the two.Like this, source cell base station just can, according to the corresponding relation of the Short MAC-I of cell-of-origin and cell-of-origin UE contextual information, be controlled this UE to the RRC reconstruction of cell-of-origin.
The present embodiment is the improvement of carrying out in base station side, the source cell base station side that needs of sending by parsing target cell base station side passes through the transparent vessel cell of UE, source cell base station can find corresponding UE contextual information according to the Short-MAC I of described cell-of-origin, is therefore achieved UE and rebuilds successfully.Avoid in switchover procedure between base station UE to return to cell-of-origin and carry out RRC reconstruction and refused by source cell base station, can reduce UE cutting off rate in handoff procedure between the station of cell base station, improve user and use impression.
One of ordinary skill in the art will appreciate that: all or part of step that realizes above-mentioned each embodiment of the method can complete by the relevant hardware of program command.Aforesaid program can be stored in a computer read/write memory medium.This program, when carrying out, is carried out the step that comprises said method embodiment; Aforesaid storage medium comprises: the various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
Embodiment tetra-
The structural representation of the subscriber equipment that Fig. 4 provides for the embodiment of the present invention four, as shown in Figure 4, this subscriber equipment (UE) can comprise: screen (screen) 41, internal memory (memeory) 43, input/output port (I/O) 45 and processor 47, can further include other universal components.Wherein the processor of subscriber equipment is for working procedure, and this program is when operation, and the rebuilding method of wireless resource control in above-described embodiment one is performed.
Processor 47 may further include:
Cell-of-origin information searching module 471, at switchover procedure between base station, searches the cell-of-origin information of preserving in subscriber equipment according to the ECGI of cell-of-origin.Described cell-of-origin information comprises: the Short-MAC I of the Physical Cell Identifier PCI of cell-of-origin, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that described cell-of-origin is described user equipment allocation and described cell-of-origin;
This cell-of-origin information is listed in a cell information table of preserving in subscriber equipment, the description in concrete reference example one.This cell information table can be stored in the internal memory or other memory units of subscriber equipment.
Rebuild request module 473, for sending to described source cell base station, carry the Radio Resource of described cell-of-origin information and control reconstruction request message.So that described source cell base station according to the Physical Cell Identifier PCI of described cell-of-origin, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that described cell-of-origin is described user equipment allocation and the Short-MAC I of described cell-of-origin, is controlled described subscriber equipment, to the Radio Resource of described cell-of-origin, control and rebuild.
Particularly, in switchover procedure between base station, cell-of-origin receives that the RRC that this UE sends rebuilds request message, because handoff procedure now not yet finishes, the contextual information of UE is not yet deleted, source cell base station can be rebuild the described cell-of-origin information of carrying in request message according to RRC and be found the contextual information to UE that should cell-of-origin information, is therefore achieved UE and rebuilds successfully.
The present embodiment is the improvement of carrying out in UE side, can to source cell base station, send RRC according to the cell-of-origin information of preserving in UE and rebuild request message, so that can controlling RRC according to the cell-of-origin information before UE switching, source cell base station rebuilds, avoid in switchover procedure between base station UE to initiate only to carry target cell information when RRC rebuilds and rebuild by source cell base station refusal the UE call drop producing, can reduce the cutting off rate of UE in switchover procedure between base station.
Embodiment five
The structural representation of the subscriber equipment that Fig. 5 provides for the embodiment of the present invention five, as shown in Figure 5, on the basis of embodiment tetra-, the processor of this subscriber equipment can also comprise:
Cell-of-origin information storage module 51, for by the corresponding relation of the ECGI of the cell-of-origin of described subscriber equipment and described cell-of-origin information, is saved in the cell information table of described subscriber equipment, and described cell-of-origin is the persistent district before described subscriber equipment switches; And/or
Target cell information memory module 53, if the cell-of-origin for described subscriber equipment sends handover request message to Target cell, the corresponding relation of the ECGI of described Target cell and described target cell information is saved in the cell information table of described subscriber equipment, described Target cell is the community that described subscriber equipment need to be switched to, and described target cell information comprises: the Short-MAC I of the Physical Cell Identifier PCI of Target cell, the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI RNTI that described Target cell is described user equipment allocation and described Target cell;
Further, the processor of this subscriber equipment can also comprise:
Removing module 55 for after having switched between base station, is deleted the corresponding relation of the ECGI of described cell-of-origin and described cell-of-origin information from the cell information table of described subscriber equipment.
The present embodiment is the improvement of carrying out in UE side, can to source cell base station, send RRC according to the cell-of-origin information of preserving in UE and rebuild request message, so that can controlling RRC according to the cell-of-origin information before UE switching, source cell base station rebuilds, avoid in switchover procedure between base station UE to initiate only to carry target cell information when RRC rebuilds and rebuild by source cell base station refusal the UE call drop producing, can reduce the cutting off rate of UE in switchover procedure between base station.
Embodiment six
The structural representation of the base station that Fig. 6 provides for the embodiment of the present invention six, as shown in Figure 6, this cell base station can comprise internal memory (memeory) 61, input/output port (I/O) 63, power amplifier 65, processor 67, reflector 68 and receiver 69, and other general module.Reflector can be to be connected with processor by power amplifier.Wherein the processor 67 of base station is for working procedure, and this program is when operation, and the rebuilding method of wireless resource control in above-described embodiment two, three is performed.
Wherein, processor 67 may further include:
Intermediate key is preserved module 671, for when sending handover request message to target cell base station, preserves the intermediate key that described handover request message is carried;
Check value acquisition module 673, for transparent vessel cell (Target eNB to Source eNB Transparent Container) and the described intermediate key sending to source cell base station according to target cell base station, obtain the Short-MAC I of cell-of-origin;
Rebuild control module 675, for according to the corresponding relation between the Short-MAC I of described cell-of-origin and the customer equipment context information of described cell-of-origin, control described subscriber equipment and control and rebuild to the Radio Resource of described cell-of-origin.Source cell base station can be according to the Short-MAC I of described cell-of-origin, and the corresponding relation between the Short-MAC I of described cell-of-origin and the UE contextual information of described cell-of-origin finds corresponding UE contextual information.
The present embodiment is the improvement of carrying out in base station side, the source cell base station side that needs of sending by parsing target cell base station side passes through the transparent vessel cell of UE, source cell base station can find corresponding UE contextual information according to the Short-MAC I of described cell-of-origin, is therefore achieved UE and rebuilds successfully.Avoid in switchover procedure between base station UE to return to cell-of-origin and carry out RRC reconstruction and refused by source cell base station, can reduce UE cutting off rate in handoff procedure between the station of cell base station.
Embodiment seven
The structural representation of the base station that Fig. 7 provides for the embodiment of the present invention seven, as shown in Figure 7, on the basis of embodiment six, in this cell base station, the check value acquisition module 673 of processor 67 specifically can comprise:
Resolution unit 71, if for receiving the switching response message that target cell base station is returned, the transparent vessel cell that the switching response message sending from target cell base station to source cell base station is carried, resolve and obtain the Physical Cell Identifier PCI of Target cell, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that Target cell is described user equipment allocation and the protection algorithm integrallty of Target cell;
Intermediate key acquiring unit 73, sends to the intermediate key of described target cell base station while switching for the request of obtaining;
Integrity protection cipher key calculation unit 75, for according to the protection algorithm integrallty of described intermediate key and described Target cell, calculates the integrity protection key of described Target cell;
Check value computing unit 77; be used for the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI that is described user equipment allocation according to the integral algorithm of the Physical Cell Identifier PCI of described integrity protection key, Target cell, Target cell, Target cell and the ECGI of cell-of-origin, calculate the Short-MAC I of described cell-of-origin.
The present embodiment is the improvement of carrying out in base station side, the source cell base station side that needs of sending by parsing target cell base station side passes through the transparent vessel cell of UE, source cell base station can find corresponding UE contextual information according to the Short-MAC I of described cell-of-origin, is therefore achieved UE and rebuilds successfully.Avoid in switchover procedure between base station UE to return to cell-of-origin and carry out RRC reconstruction and refused by source cell base station, can reduce UE cutting off rate in handoff procedure between the station of cell base station.
Embodiment eight
The structural representation of the communication system that Fig. 8 provides for the embodiment of the present invention eight, as shown in Figure 8, this communication system can comprise: subscriber equipment 81, source cell base station 85 and target cell base station 83;
Described subscriber equipment adopts the subscriber equipment of arbitrary structure in the embodiment of the present invention; And/or described source cell base station adopts the base station of arbitrary structure in the embodiment of the present invention;
Described target cell base station, the handover request message sending for receiving described source cell base station; To source cell base station, return to switching response message.
The improvement that the present embodiment can carry out in UE side, can send RRC to source cell base station according to the cell-of-origin information of preserving in UE and rebuild request message, so that source cell base station can be controlled RRC according to the cell-of-origin information before UE switching, rebuilds; Also the improvement of can base station side carrying out, the source cell base station side that needs of sending by parsing target cell base station side passes through the transparent vessel cell of UE, source cell base station can find corresponding UE contextual information according to the Short-MAC I of described cell-of-origin, is therefore achieved UE and rebuilds successfully; Avoid in switchover procedure between base station UE to return to cell-of-origin and carry out RRC reconstruction and refused by source cell base station, can reduce UE cutting off rate in handoff procedure between the station of cell base station, improve user and use impression.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (7)

1. a rebuilding method of wireless resource control, is characterized in that, comprising:
In switchover procedure between base station, according to the E-UTRAN Cell Global Identifier ECGI of cell-of-origin, search the cell-of-origin information of preserving in user equipment (UE);
Source cell base station to described cell-of-origin sends the Radio Resource control reconstruction request message that carries described cell-of-origin information;
The described time period representing in switchover procedure between base station is: source cell base station issues switching command to target cell base station, but target cell base station is not yet initiated the renewal of user's face to core net.
2. method according to claim 1, it is characterized in that, described cell-of-origin information comprises: the Physical Cell Identifier PCI of cell-of-origin, described cell-of-origin is the Cell Radio Network Temporary Identifier/Identity, Cell-RNTI CRNTI of described UE distribution and the short MAC sign Short-MAC I of described cell-of-origin.
3. method according to claim 1 and 2, is characterized in that, described cell-of-origin information is used for: described source cell base station is controlled described subscriber equipment according to described cell-of-origin information and controlled and rebuild to the Radio Resource of described cell-of-origin.
4. method according to claim 3, is characterized in that, described ECGI is that described UE obtains from the system message of described cell-of-origin.
5. method according to claim 3, is characterized in that, described cell-of-origin information is stored in the cell information table of described UE.
6. method according to claim 5, is characterized in that, described cell information table comprises: the corresponding relation of the cell-of-origin ECGI of described UE, described cell-of-origin ECGI and described cell-of-origin information.
7. method according to claim 6, is characterized in that, described cell-of-origin is the persistent district before described subscriber equipment switches.
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