CN105282801A - RRC reestablishment and original service cell confirmation method, target base station, terminal and system - Google Patents
RRC reestablishment and original service cell confirmation method, target base station, terminal and system Download PDFInfo
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- CN105282801A CN105282801A CN201410361106.4A CN201410361106A CN105282801A CN 105282801 A CN105282801 A CN 105282801A CN 201410361106 A CN201410361106 A CN 201410361106A CN 105282801 A CN105282801 A CN 105282801A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/19—Connection re-establishment
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Abstract
The invention discloses an RRC reestablishment and original service cell confirmation method, target base station, communication terminal and communication system. When an RRC is reestablished, a communication terminal sends a first RRC reestablishment request to a target base station, wherein the first RRC reestablishment request contains identification information and carrier frequency information of an original service cell where the communication terminal is; and the target base station obtains the identification information and carrier frequency information of the original service cell from the first RRC reestablishment request, and searches for the original service cell directly from corresponding cells according to the identification information and carrier frequency information of the original service cell but not just according to a physCellId. Based on the identification information of the cell and the carrier frequency information of the original service cell, the original service cell of the communication terminal can be found relatively rapidly and accurately, thus the efficiency and accuracy rate of RRC reestablishment can be improved, and the success rate of MRO is finally improved.
Description
Technical field
The present invention relates to the communications field, be specifically related to a kind of RRC and re-establish and former Serving cell confirmation method, target BS, communication terminal and communication system.
Background technology
RRC (RadioResourceConnection in LTE system, Radio Resource connects) to re-establish be very important flow process, key effect is played for weakening conversation loss perceptibility, perfect along with LTE technology, the application scenarios re-established also constantly increases, re-establish flow process also constantly perfect, but, still there is certain limitation in the existing cell parameters taken in flow process that re-establishes, lack some key parameters, cause some scene re-establish success rate and efficiency is not high, but also another critical function of LTE MRO (MobilityRobustOptimize can be had influence on, mobile big shield rod is optimized) success rate.Concrete, in the 3 gpp standards, exactly defined re-establish flow process idle message and needed for the cell that carries, wherein carry c-RNTI (Cell-RadioNetworkTemporaryIdentity in RRC information, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI), physCellId (PhysicalCellIdentity, Physical Cell Identifier), shortMAC-I (shortMediumAccessControlIdentity, short MAC mark), ReestablishmentCause (re-establishing reason), re-establishing base station side handling process is at present: as the target BS of Target cell receive that terminal initiates re-establish request message after, target BS removes to this base station the contextual information inquiring about this terminal according to c-RNTI and physCellId in this message, if do not found, receive the base station re-establishing request message and utilize the community of searching in physCellId to Neighboring Cell List and whether having same physical cell ID, if have found, will by X2 passage broadcast transmission RLF (RadioLinkFailure, Radio Link Failure) message is to the adjacent base station (claiming base station corresponding to Neighboring Cell List Zhong Ge community to be adjacent base station herein) containing this physCellId, whether the adjacent base station receiving RLF message can utilize c-RNTI and physCellId to carry out matched termination contextual information to exist again, if find corresponding terminal, follow-up re-establishing across station could have been continued.Visible, when RRC re-establishes, existing is only the former Serving cell of searching terminal place according to physCellId, can there is following problem:
(1) receiving on the target BS re-establishing request message has the physCellId of multiple community identical, but when carrier frequency is different, target BS does not know to have in which community the terminal needing to search, namely do not know which community is only the former Serving cell of terminal yet yet, therefore inquiry that can only be random, this success rate is relatively low; Or travel through each community, but prolongation is re-established the time by this, affecting conversation loss perceptibility additionally increases overhead, reduces the success rate of MRO simultaneously;
(2) if the physCellId of multiple adjacent area all with to re-establish in request message be with physCellId identical time, so receive the target BS re-establishing request message and will initiate RLF message to multiple adjacent base station, cause the meaningless expense of system;
(3) when having the physCellId of multiple community identical in the adjacent base station receiving RLF message, but when carrier frequency is different, the terminal needing to search is not known to have in which community in the adjacent base station receiving RLF message yet, inquiry that yet can only be random or travel through each community.
Summary of the invention
The main technical problem to be solved in the present invention is, there is provided a kind of RRC to re-establish and former Serving cell confirmation method, target BS, communication terminal and communication system, solve existing RRC and re-establish target BS in process and can not confirm the problem of former Serving cell fast and accurately and cause the problem that the success rate of MRO is low.
For solving the problems of the technologies described above, the invention provides a kind of RRC and rebuilding former Serving cell defining method, comprising:
The RRC that target BS received communication terminal sends re-establishes request, and a described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described target BS re-establishes request from a described RRC identification information and carrier frequency information that obtain described former Serving cell;
Described target BS searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence.
In an embodiment of the present invention, when described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, also comprise:
Described target BS searches the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described target BS sends the 2nd RRC and re-establishes request to described adjacent base station, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell.
In an embodiment of the present invention, described carrier frequency information is the carrier-frequency range information of center of housing estate carrier frequency information or MPS process.
In order to solve the problem, present invention also offers a kind of RRC and re-establishing former Serving cell defining method, comprising:
Communication terminal, when needs RRC re-establishes, sends a RRC to target BS and re-establishes request; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place.
In order to solve the problem, present invention also offers a kind of RRC reconstruction method, comprising:
Communication terminal sends a RRC to target BS and re-establishes request; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
The described RRC that described target BS received communication terminal sends re-establishes request, re-establishes request from a described RRC identification information and carrier frequency information that obtain described former Serving cell;
Described target BS searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence,
And complete RRC based on the described former Serving cell found and re-establish.
In an embodiment of the present invention, when described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, also comprise:
Described target BS searches the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described target BS sends the 2nd RRC and re-establishes request to described adjacent base station, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell;
The 2nd RRC that described adjacent base station receives the transmission of described target BS re-establishes request;
Described adjacent base station confirms described former Serving cell according to described identification information and carrier frequency information in each community of its correspondence.
In order to solve the problem, present invention also offers a kind of target BS, comprise first information receiver module and the first processing module,
The RRC that described first information receiver module is used for the transmission of received communication terminal re-establishes request, and a described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described first processing module is used for re-establishing request from a described RRC identification information and carrier frequency information that obtain described former Serving cell, searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community corresponding to described target BS.
In an embodiment of the present invention, also comprise adjacent area and search module and first information sending module;
Described adjacent area search module in described first processing module according to when not finding described former Serving cell the identification information of described former Serving cell and carrier frequency information each community corresponding from described target BS, search the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described first information sending module re-establishes request to described adjacent base station for sending the 2nd RRC, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell.
In an embodiment of the present invention, described carrier frequency information is the carrier-frequency range information of center of housing estate carrier frequency information or MPS process.
In order to solve the problem, present invention also offers a kind of communication terminal, comprise the second information sending module, during for needing RRC to re-establish at communication terminal, sending a RRC to target BS and re-establishing request; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place.
In order to solve the problem, present invention also offers a kind of communication system, comprise communication terminal and target BS;
Described communication terminal is used for when needs RRC re-establishes, and sends a RRC re-establish request to described target BS; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described target BS re-establishes request for the described RRC receiving the transmission of described communication terminal, from each community of its correspondence, confirm described former Serving cell according to described identification information and carrier frequency information, and complete RRC re-establish based on the described former Serving cell confirmed.
In an embodiment of the present invention, adjacent base station is also comprised;
When described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, search the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information; And send the 2nd RRC and re-establish request to described adjacent base station, described 2nd RRC re-establishes request and comprises identification information and the carrier frequency information of described former Serving cell;
Described adjacent base station re-establishes request for receiving described 2nd RRC, and in each community that described adjacent base station is corresponding, confirms described former Serving cell according to described identification information and carrier frequency information.
The invention has the beneficial effects as follows:
RRC provided by the invention re-establishes and former Serving cell confirmation method, target BS, communication terminal and communication system, when RRC re-establishes, communication terminal sends a RRC to target BS and re-establishes request, and a RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, communication terminal place; Target BS re-establishes request from a RRC identification information and carrier frequency information that obtain former Serving cell, directly from each community of its correspondence, searching former Serving cell according to the identification information of this former Serving cell and carrier frequency information, is not only search former Serving cell according to physCellId.The former Serving cell of communication terminal can be found more fast and accurately in conjunction with the identification information of community and the carrier frequency information (the center carrier frequence information of such as community or carrier-frequency range information etc.) of former Serving cell, efficiency and accuracy rate that RRC re-establishes can be promoted, and the final success rate promoting MRO.
Accompanying drawing explanation
Fig. 1 re-establishes former Serving cell confirmation method schematic flow sheet in process for the RRC that the embodiment of the present invention one provides;
The communication system architecture schematic diagram that Fig. 2 provides for the embodiment of the present invention two;
The communication terminal structural representation that Fig. 3 provides for the embodiment of the present invention two;
The target BS structural representation one that Fig. 4 provides for the embodiment of the present invention two;
The target BS structural representation two that Fig. 5 provides for the embodiment of the present invention two;
The adjacent architecture of base station schematic diagram that Fig. 6 provides for the embodiment of the present invention two;
Schematic flow sheet is rebuild in the station inner panel that Fig. 7 provides for the embodiment of the present invention three;
Schematic flow sheet is rebuild between the station inner panel that Fig. 8 provides for the embodiment of the present invention three;
Schematic flow sheet is rebuild between the station that Fig. 9 provides for the embodiment of the present invention three.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Embodiment one:
Shown in Figure 1, the RRC that the present embodiment provides re-establishes former Serving cell confirmation method in process and comprises:
Step 101: communication terminal sends a RRC to target BS and re-establishes request; One RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, communication terminal place; Target BS herein refers to the base station as Target cell in process of reconstruction, and this base station may be former base station, also may be other base stations;
Step 102: the RRC that target BS received communication terminal sends re-establishes request, re-establishes request from a RRC identification information and carrier frequency information that obtain described former Serving cell;
Step 103: target BS searches former Serving cell according to the identification information of this former Serving cell and carrier frequency information from each community of its correspondence.Each community that target BS is corresponding herein refers to Shang Ge community, this base station.
After target BS confirms the former Serving cell of communication terminal, follow-up RRC can be continued based on the former Serving cell confirmed and re-establish process.
In the present embodiment, when corresponding former Serving cell can be found on target BS, exist this base station completes foundation in same plate situation and this base station on complete the situation of foundation between different plate.Can illustrate in embodiment below.When target BS does not find former Serving cell according to the identification information of former Serving cell and carrier frequency information from its each community, also comprise:
Target BS searches the adjacent base station of former Serving cell ownership in the neighbor list according to the identification information of former Serving cell and carrier frequency information;
Target BS sends the 2nd RRC and re-establishes request to adjacent base station, and the 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell;
The 2nd RRC that adjacent receiving target base station, base station sends re-establishes request;
Adjacent base station re-establishes according to the 2nd RRC the former Serving cell that identification information in request and carrier frequency information confirm communication terminal in each community of its correspondence.
In the present embodiment, target BS re-establishes request by the mode of RLF message to adjacent base station transmission the 2nd RRC.Target BS searches the adjacent base station of former Serving cell ownership in the neighbor list according to the identification information of former Serving cell and carrier frequency information, be not only confirm adjacent base station according to physCellId, can avoid the physCellId of multiple adjacent area all with to re-establish in request message be with physCellId identical time, target BS needs to initiate RLF message to this multiple neighboring station, cause the problem of the meaningless expense of system, can elevator system resource utilization.
In the present embodiment, the identification information of former Serving cell is physCellId information; The carrier frequency information of former Serving cell can be the carrier-frequency range information of center of housing estate carrier frequency information or MPS process, as long as this carrier frequency information may be used for determining accurately a corresponding community.A RRC in the present embodiment re-establishes request also can comprise at least one in c-RNTI, shortMAC-I, ReestablishmentCause etc.
Embodiment two:
Shown in Figure 2, the communication system that the present embodiment provides comprises communication terminal, target BS and adjacent base station;
Communication terminal is used for when needs RRC re-establishes, and sends a RRC re-establish request to target BS; One RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, communication terminal place;
Target BS is used for the RRC that received communication terminal sends and re-establishes request, confirms former Serving cell, and complete RRC re-establish based on the former Serving cell confirmed according to identification information and carrier frequency information;
When target BS also for not finding former Serving cell according to the identification information of former Serving cell and carrier frequency information from each community of its correspondence, the adjacent base station of former Serving cell ownership is searched in the neighbor list according to the identification information of former Serving cell and carrier frequency information, and send the 2nd RRC and re-establish request to adjacent base station, the 2nd RRC re-establishes request and comprises identification information and the carrier frequency information of former Serving cell;
Adjacent base station receives the 2nd RRC and re-establishes request, and in each community that adjacent base station is corresponding, confirms former Serving cell according to identification information and carrier frequency information.
Shown in Figure 3, in the present embodiment, communication terminal specifically comprises the second information sending module, during for needing RRC to re-establish at communication terminal, sending a RRC re-establish request to target BS; One RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, communication terminal place.
Concrete, shown in Figure 4, the target BS in the present embodiment comprises first information receiver module and the first processing module,
The RRC that first information receiver module is used for the transmission of received communication terminal re-establishes request;
First processing module is used for re-establishing request from a RRC identification information and carrier frequency information that obtain former Serving cell, searches described former Serving cell according to the identification information of former Serving cell and carrier frequency information from each community corresponding to target BS.
Shown in Figure 5, the target BS in the present embodiment also comprises adjacent area and searches module and first information sending module;
Adjacent area search module in the first processing module according to when not finding former Serving cell the identification information of former Serving cell and carrier frequency information each community corresponding from target BS, search the adjacent base station of former Serving cell ownership in the neighbor list according to the identification information of former Serving cell and carrier frequency information;
First information sending module re-establishes request to adjacent base station for sending the 2nd RRC, and the 2nd RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell.
Shown in Figure 6, the adjacent base station in the present embodiment specifically comprises the second information receiving module and the second processing module;
Second information receiving module re-establishes request for the 2nd RRC receiving the transmission of first information sending module;
Second processing module is used for re-establishing identification information in request according to the 2nd RRC and carrier frequency information confirms former Serving cell in each community that adjacent base station is corresponding.
In the present embodiment, the first information sending module of target BS sends the 2nd RRC by the mode of RLF message to adjacent base station and re-establishes request.Target BS searches the adjacent base station of former Serving cell ownership in the neighbor list according to the identification information of former Serving cell and carrier frequency information, be not only confirm adjacent base station according to physCellId, can avoid the physCellId of multiple adjacent area all with to re-establish in request message be with physCellId identical time, target BS needs to initiate RLF message to this multiple neighboring station, cause the problem of the meaningless expense of system, can elevator system resource utilization.
In the present embodiment, the identification information of former Serving cell is physCellId information; The carrier frequency information of former Serving cell can be the carrier-frequency range information of center of housing estate carrier frequency information or MPS process, as long as this carrier frequency information may be used for determining accurately a corresponding community.A RRC in the present embodiment re-establishes request also can comprise at least one in c-RNTI, shortMAC-I, ReestablishmentCause etc.
Embodiment three:
For a better understanding of the present invention, below in conjunction with concrete several application scenarioss, the solution of the present invention is described in detail.
Shown in Figure 7, this figure is depicted as in the inner panel of station and re-establishes process:
Step 701: communication terminal judges to re-establish generation;
Step 702: communication terminal sends a RRC to target BS and re-establishes request, and this request comprises the center carrier frequence information of physCellId information and the former Serving cell of communication terminal;
Step 703: target BS re-establishes center carrier frequence information in request according to a RRC, directly to lock former Serving cell and Target cell be same Ban Nei community to physCellId;
Step 704: target BS completes in plate and rebuilds;
Step 705: target BS sends to communication terminal and re-establishes response message RRCConnectoinReestablishment;
Step 706: after communication terminal receives this response message, has re-established message RRCConnectoinReestablishmentComplete to target BS feedback.
According to above-mentioned processing procedure, when communication terminal to re-establish in the same base station in former community and Target cell and same baseband board time, although physCellId and CRNTI can be utilized to navigate to UE initial context ownership in which community, if but same board memory is at multiple alien frequencies and when having the community of same physCellId, inquiry UE initial context informational needs travels through each with physCellId but the community of different carrier frequency, and rebuilding the carrier frequency information adding former Serving cell in request message in the present embodiment, in plate during inquiring communication terminal context ownership, when being also the former Serving cell of communication terminal, just directly can search the community that satisfies condition fast, greatly can promote the system resource of search efficiency and energy-conservation preciousness like this.
Shown in Figure 8, this figure is depicted as between the inner panel of station and re-establishes process:
Step 801: communication terminal judges to re-establish generation;
Step 802: communication terminal sends a RRC to target BS and re-establishes request, and this request comprises the center carrier frequence information of physCellId information and the former Serving cell of communication terminal;
Step 803: target BS re-establishes center carrier frequence information in request according to a RRC, physCellId directly locks former Serving cell and Target cell is community on the different substrate of same base station;
Step 804: target BS completes between plate and rebuilds;
Step 805: target BS sends to communication terminal and re-establishes response message RRCConnectoinReestablishment;
Step 806: after communication terminal receives this response message, has re-established message RRCConnectoinReestablishmentComplete to target BS feedback.
According to above-mentioned processing procedure, when the Target cell that communication terminal re-establishes and former community in same base station but different baseband board time, although physCellId and CRNTI can be utilized to navigate to UE initial context ownership in which community, if there is polylith baseband board in this base station, and when there is multiple alien frequencies and there is the community of same physCellId, inquiry UE initial context informational needs travels through each with physCellId but the community of different center carrier frequence, and rebuilding the carrier frequency information adding former Serving cell in request message in the present embodiment, during inquiring communication terminal context ownership, just directly can search the community that satisfies condition fast, do not need between plate, travel through each identical physCellId community, do not need in plate, travel through each identical physCellId community yet, greatly can promote the system resource of search efficiency and energy-conservation preciousness like this.
Shown in Figure 9, this figure is depicted as between station and re-establishes process:
Step 901: communication terminal judges to re-establish generation;
Step 902: communication terminal sends a RRC to target BS and re-establishes request, and this request comprises the center carrier frequence information of physCellId information and the former Serving cell of communication terminal;
Step 903: target BS re-establishes center carrier frequence information in request according to a RRC, physCellId does not find former Serving cell, but have found former Serving cell in the neighbor list in its each community;
Step 904: target BS sends the 2nd RRC to adjacent base station and re-establishes request, also comprises the center carrier frequence information of former Serving cell in this request;
Step 905: adjacent base station re-establishes center carrier frequence information in request according to the 2nd RRC, physCellId directly locks former Serving cell;
Step 906: complete X2 between adjacent base station and target BS and switch;
Step 907: target BS sends to communication terminal and re-establishes response message RRCConnectoinReestablishment;
Step 908: after communication terminal receives this response message, has re-established message RRCConnectoinReestablishmentComplete to target BS feedback.
According to above-mentioned processing procedure, when the Target cell that communication terminal re-establishes and former community are adhered to separately as different base station, but there is X2 link between base station, although physCellId and CRNTI can be utilized to navigate to UE initial context ownership in which community, if there is polylith baseband board in this base station, and there is multiple alien frequencies and there is the community of same physCellId, exist in Neighboring Cell List in addition multiple station and physCellId same cells time, inquiry UE initial context informational needs travels through each with physCellId but the community of different center carrier frequence.And rebuilding the carrier frequency information adding former Serving cell in request message in the present embodiment, during inquiring communication terminal context ownership, just directly can search the community that satisfies condition fast, do not need between plate, travel through each identical physCellId community, do not need in plate, travel through each identical physCellId community, greatly can promote the system resource of search efficiency and energy-conservation preciousness so yet.
Because the MRO function trigger condition in LTE system is according to re-establishing scene to adjudicate, if re-establish always can not success or efficiency lower time, MRO function can be caused not perform, such as, when re-establishing across station, the physCellId that there is multiple base stations multiple cell is identical, but when center carrier frequence is different, under this scene, base station does not have corresponding end message under probably inquiring about the community of identical physCellId, thus reply re-establishes refusal, cause MRO flow process cannot trigger always, UE call drop, another kind of situation is, just counterpart terminal initial context can be found after base station repeatedly travels through, consuming time relatively long, probably UE re-establish timer expiry after, re-establish failure, thus MRO flow process also cannot trigger, UE call drop.And by the scheme that the application provides, re-establishing in request message the carrier frequency information of carrying former Serving cell, contribute to locking the former Serving cell of communication terminal fast and accurately, and then avoid the generation of above-mentioned situation, promote the success rate of MRO.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (12)
1. RRC re-establishes a former Serving cell defining method, it is characterized in that, comprising:
The RRC that target BS received communication terminal sends re-establishes request, and a described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described target BS re-establishes request from a described RRC identification information and carrier frequency information that obtain described former Serving cell;
Described target BS searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence.
2. RRC as claimed in claim 1 re-establishes former Serving cell defining method, it is characterized in that, when described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, also comprises:
The adjacent base station of described former Serving cell ownership is searched in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described target BS sends the 2nd RRC and re-establishes request to described adjacent base station, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell.
3. RRC as claimed in claim 1 or 2 re-establishes former Serving cell defining method in process, and it is characterized in that, described carrier frequency information is the carrier-frequency range information of center of housing estate carrier frequency information or MPS process.
4. RRC re-establishes a former Serving cell defining method, it is characterized in that, comprising:
Communication terminal, when needs RRC re-establishes, sends a RRC to target BS and re-establishes request; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place.
5. a RRC reconstruction method, is characterized in that, comprising:
Communication terminal sends a RRC to target BS and re-establishes request; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
The described RRC that described target BS received communication terminal sends re-establishes request, re-establishes request from a described RRC identification information and carrier frequency information that obtain described former Serving cell;
Described target BS searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, and completes RRC based on the described former Serving cell found and re-establish.
6. RRC reconstruction method as claimed in claim 5, is characterized in that, when described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, also comprise:
Described target BS searches the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described target BS sends the 2nd RRC and re-establishes request to described adjacent base station, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell;
The 2nd RRC that described adjacent base station receives the transmission of described target BS re-establishes request;
Described adjacent base station confirms described former Serving cell according to described identification information and carrier frequency information in each community of its correspondence.
7. a target BS, is characterized in that, comprises first information receiver module and the first processing module,
The RRC that described first information receiver module is used for the transmission of received communication terminal re-establishes request, and a described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described first processing module is used for re-establishing request from a described RRC identification information and carrier frequency information that obtain described former Serving cell, searches described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community corresponding to described target BS.
8. target BS as claimed in claim 7, is characterized in that, also comprise adjacent area and search module and first information sending module;
Described adjacent area search module in described first processing module according to when not finding described former Serving cell the identification information of described former Serving cell and carrier frequency information each community corresponding from described target BS, search the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information;
Described first information sending module re-establishes request to described adjacent base station for sending the 2nd RRC, and described 2nd RRC re-establishes identification information and the carrier frequency information that request comprises described former Serving cell.
9. target BS as claimed in claim 7 or 8, it is characterized in that, described carrier frequency information is the carrier-frequency range information of center of housing estate carrier frequency information or MPS process.
10. a communication terminal, is characterized in that, comprises the second information sending module, during for needing RRC to re-establish at communication terminal, sending a RRC re-establish request to target BS; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place.
11. 1 kinds of communication systems, is characterized in that, comprise communication terminal and target BS;
Described communication terminal is used for when needs RRC re-establishes, and sends a RRC re-establish request to described target BS; A described RRC re-establishes identification information and the carrier frequency information that request comprises former Serving cell, described communication terminal place;
Described target BS re-establishes request for the described RRC receiving the transmission of described communication terminal, from each community of its correspondence, confirm described former Serving cell according to described identification information and carrier frequency information, and complete RRC re-establish based on the described former Serving cell confirmed.
12. communication systems as claimed in claim 11, is characterized in that, also comprise adjacent base station;
When described target BS does not find described former Serving cell according to the identification information of described former Serving cell and carrier frequency information from each community of its correspondence, search the adjacent base station of described former Serving cell ownership in the neighbor list according to the identification information of described former Serving cell and carrier frequency information; And send the 2nd RRC and re-establish request to described adjacent base station, described 2nd RRC re-establishes request and comprises identification information and the carrier frequency information of described former Serving cell;
Described adjacent base station re-establishes request for receiving described 2nd RRC, and in each community that described target BS is corresponding, confirms described former Serving cell according to described identification information and carrier frequency information.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410361106.4A CN105282801A (en) | 2014-07-25 | 2014-07-25 | RRC reestablishment and original service cell confirmation method, target base station, terminal and system |
| PCT/CN2014/092072 WO2015117471A1 (en) | 2014-07-25 | 2014-11-24 | Method for rrc re-establishment and original serving cell confirmation, target base station, terminal and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410361106.4A CN105282801A (en) | 2014-07-25 | 2014-07-25 | RRC reestablishment and original service cell confirmation method, target base station, terminal and system |
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| CN105282801A true CN105282801A (en) | 2016-01-27 |
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| WO (1) | WO2015117471A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106572495A (en) * | 2016-09-29 | 2017-04-19 | 中国普天信息产业北京通信规划设计院 | Network quality monitoring method based on signalling and MR data and coverage assessment method based on signalling and MR data |
| CN107124741A (en) * | 2016-02-24 | 2017-09-01 | 大唐移动通信设备有限公司 | A kind of method and device of RRC connection re-establishments |
| CN113950121A (en) * | 2020-07-15 | 2022-01-18 | 大唐移动通信设备有限公司 | Context recovery method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101959263B (en) * | 2009-07-15 | 2015-07-22 | 中兴通讯股份有限公司 | Method and device for transmitting radio link failure information |
| CN101808354B (en) * | 2010-03-09 | 2012-12-26 | 西安电子科技大学 | Method for detecting and switching failure scene based on mobile terminal information |
| CN103906152B (en) * | 2012-12-24 | 2022-02-25 | 北京三星通信技术研究有限公司 | Method for supporting UE quick recovery |
-
2014
- 2014-07-25 CN CN201410361106.4A patent/CN105282801A/en active Pending
- 2014-11-24 WO PCT/CN2014/092072 patent/WO2015117471A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107124741A (en) * | 2016-02-24 | 2017-09-01 | 大唐移动通信设备有限公司 | A kind of method and device of RRC connection re-establishments |
| CN106572495A (en) * | 2016-09-29 | 2017-04-19 | 中国普天信息产业北京通信规划设计院 | Network quality monitoring method based on signalling and MR data and coverage assessment method based on signalling and MR data |
| CN106572495B (en) * | 2016-09-29 | 2019-12-10 | 普天信息工程设计服务有限公司 | Network quality monitoring method and coverage evaluation method based on signaling and MR data |
| CN113950121A (en) * | 2020-07-15 | 2022-01-18 | 大唐移动通信设备有限公司 | Context recovery method and device |
| CN113950121B (en) * | 2020-07-15 | 2023-03-31 | 大唐移动通信设备有限公司 | Context recovery method and device |
Also Published As
| Publication number | Publication date |
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| WO2015117471A1 (en) | 2015-08-13 |
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