CN102932857B - Radio resource control (RRC) connection recovery method, base station and terminal - Google Patents
Radio resource control (RRC) connection recovery method, base station and terminal Download PDFInfo
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- CN102932857B CN102932857B CN201110231445.7A CN201110231445A CN102932857B CN 102932857 B CN102932857 B CN 102932857B CN 201110231445 A CN201110231445 A CN 201110231445A CN 102932857 B CN102932857 B CN 102932857B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000011084 recovery Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 210000004027 cell Anatomy 0.000 description 279
- 230000008859 change Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000007726 management method Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 230000009897 systematic effect Effects 0.000 description 3
- 210000003719 b-lymphocyte Anatomy 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
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- 230000000116 mitigating effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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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 a radio resource control (RRC) connection recovery method, a base station and a terminal, which can be used to realize rapid recovery of RRC connection after switching failure or RLF (Radio Link Failure). The method comprises the steps of: receiving an indication of approaching a target cell or a measurement report carrying target cell information, reported by user equipment (UE), by a base station to which the current service cell of the user equipment belongs, and then, notifying public configuration information of the target cell to the UE, wherein the public configuration information is used for recovering the RRC connection between the UE and the target cell. The base station comprises a receiving module and a notifying module. The terminal comprises a sending module, a storage module and a connection recovery module. With adoption of the method, the base station and the terminal provided by the embodiment of the invention, the rapid recovery of the RRC connection after the switching failure or RLF can be realized, so that the user experience and the system performance are improved.
Description
Technical field
The present invention relates to mobile communication technology, more particularly to a kind of wireless heterogeneous networks (Radio Resource
Control, RRC) connection restoration methods, base station and terminal.
Background technology
With the development of mobile communication and information technology, user is growing to the demand of data service.Current main flow
Mobile communications network, either using GSM, (Global System For Mobile Communication, the whole world is mobile logical
Letter system) 2nd generation/the 2.5th generation of/GPRS (General Packet Radio Service, GPRS) moves
Dynamic communication network, or using UMTS, (Universal Mobile Telecommunications System, General Mobile leads to
Letter system) third generation mobile communications network, be all by the homogeneous network of operator's unified planning to deploy
(HomogeneousNetwork), homogeneous network once disposing, fix in certain area by the capacity of network.In order to meet increasingly well
The data traffic requirement of spray is, it is necessary to the more homogeneous network websites of operator deployment, on the one hand, isomorphism of disposing and uphold one's heritage is grand
Website high cost, on the other hand, even if disposing a large amount of new sites on the basis of legacy network, each website is once disposed,
Its network capacity is fixed, it is impossible to adapt to the demand and service quality (Quality of of some areas business load change in network
Service, QoS) change demand.
The data traffic requirement growing in order to adapt to user, the 4th third-generation mobile communication is on the basis of original homogeneous network
Upper some low power nodes (Lower Power Node, LPN) of deployment, including low-power micro-base station (pico eNB), family's base
Stand (HeNB/CSG/femto), via node (relay) etc., these low power nodes because its transmission power is than relatively low, therefore
Relative to the macrocell (macro cell) that the base station (eNB, NB etc.) of Incumbent unified plan is covered, these low-power
The cell that node is covered can be collectively referred to as Microcell (micro cell) or cell (small cell) or low-power section
Point cell (LPN cell).Low power nodes deployment is flexible, such as can be deployed in hot spot region, increases covering for hot spot region
Lid, is exactly as shown in Figure 1 a kind of schematic diagram of low power nodes focus covering, and low power nodes can be flexible according to number of users
The network capacity for being deployed in hot spot region, increasing hot spot region, mitigate the load of hot spot region macrocell.Low power nodes are also
Cell edge can be deployed in, strengthens the covering of cell edge, such as Fig. 2 is exactly a kind of showing for low power nodes cell edge covering
It is intended to, can effectively strengthens the covering of cell edge, improves the Qos of Cell Edge User.Low power nodes can also be deployed in
Interior, strengthens in-door covering, and such as Fig. 3 is exactly a kind of schematic diagram of low power nodes in-door covering, effectively can cover in enhanced room
Lid, improves the Qos of indoor user, meets the high traffic demand of indoor user, while mitigating the load of macrocell.
The deployment of low power nodes, can strengthen MPS process on the basis of traditional macrocell, increase network capacity, share
Macrocell load, strengthens the quality of service of specific user.However, low power nodes are low due to its transmission power, its MPS process
The relatively conventional macrocell of scope is much smaller, particularly with frequency deployment low power nodes, i.e., the working frequency of macrocell and its
It is Zone switched between relatively conventional macrocell when the working frequency of the low power nodes disposed in coverage is identical, it is grand
Under the much smaller therefore traditional mobile management technology of Zone switched meeting between cell and LPN cells, it is likely that cause UE to exist
Switch failure and the probability increasing of Radio Link Failure (Radio Link Failure, RLF) between macrocell and LPN cells
Plus, if wireless heterogeneous networks (Radio Resource Control, RRC) connection recovers too late after handoff failure or RLF
When, UE call drops will be caused, final influence Consumer's Experience and system energy.In order to really realize the deployment of low power nodes to reach
Covered for traditional macrocell strengthens, strengthen network capacity, share the purpose of macrocell load, while systematic function is not influenceed again,
Need to seek efficiently to recover the mobility enhancement method that RRC is connected after handoff failure or RLF.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of wireless heterogeneous networks connection restoration methods, base station and end
End, it is possible to achieve the fast quick-recovery of RRC connections after handoff failure or RLF.
In order to solve the above technical problems, the invention provides a kind of wireless heterogeneous networks (RRC) connection restoration methods, bag
Include：
User equipment (UE) current service cell own base station receives the instruction close to Target cell that the UE is reported, or
After receiving the measurement report of the carrying target cell information that the UE is reported, the common configuration information of Target cell is notified to described
UE, the common configuration information is connected for recovering UE with the RRC of Target cell.
Further, after the UE receives the common configuration information of Target cell, preserve the public of the Target cell and match somebody with somebody
Confidence ceases, and when RRC connection reconstructions are carried out, uses the common configuration information of the Target cell for being preserved to search for the target
Cell and judge that the Target cell is resident if appropriate for the UE.
Further, UE current service cells own base station obtains the common configuration of Target cell one of in the following manner
Information：
UE current service cells own base station when X2 interface is set up with Target cell own base station, from belonging to Target cell
Base station obtains the common configuration information of Target cell；
UE current service cells own base station is small from target when base station configuration information is updated with Target cell own base station
Area's own base station obtains the common configuration information of Target cell；
UE current service cells own base station receive that the UE reports close to Target cell instruction or carry target
After the measurement report of cell information, the common configuration information of Target cell is obtained from Target cell own base station；
UE current service cells own base station obtains the common configuration information of Target cell by network management system.
Further, methods described also includes：UE current service cells own base station is obtained from Target cell own base station
During taking the common configuration information of Target cell, it is small that the contextual information by UE in current service cell is sent to the target
Area's own base station.
Further, after UE preserves the common configuration information of the Target cell, methods described also includes：The UE is the public affairs
Configuration information sets effective time altogether.
Further, the common configuration information includes that can UE judge select and access necessary to the cell B to match somebody with somebody
Confidence ceases.
Further, the common configuration information includes：Host system message block (MIB), system information block 1 (SIB1) and it is
Some or all of information in system block of information 2 (SIB2).
Further, the common configuration information includes one or more of following information：Frequency bandwidth information, physics is mixed
Close HARQ and indicate channel (PHICH) configuration information, cell accesses relevant information, and cell selection relevant information is public
Wireless resource configuration, base station power information.
Further, for time division multiplex (TDD) system, the common configuration information also includes TDD configuration informations.
Further, the common configuration information also more new logo including the common configuration information, UE receives mesh
Mark cell common configuration information after, by compare the more new logo in common configuration information with from system message of target cell
The renewal of reading identifies whether unanimously to decide whether to continue reading system message of target cell.
Further, current service cell includes：Macrocell or Microcell or cell；The Target cell includes following
One or more in cell：Macrocell, Microcell, cell.
In order to solve the above technical problems, recovering base station, bag present invention also offers a kind of wireless heterogeneous networks (RRC) connection
Receiver module and notification module are included, wherein：
The receiver module, for receiving that the user equipment (UE) in this base station administration cell reports close to Target cell
Instruction, or the measurement report for receiving the carrying target cell information that the UE reports；
The notification module, for after the receiver module receives instruction or measurement report, by the Target cell
Common configuration information notifies that, to the UE, the common configuration information is connected for recovering UE with the RRC of Target cell.
In order to solve the above technical problems, recovering terminal, bag present invention also offers a kind of wireless heterogeneous networks (RRC) connection
Sending module, preserving module and connection recovery module are included, wherein：
The sending module, for reporting the instruction close to Target cell, Huo Zhexiang to current service cell own base station
Current service cell own base station report carries the measurement report of target cell information；
The preserving module, for after the common configuration information for receiving the Target cell that the base station sends, preserving
The common configuration information of the Target cell；
The connection recovery module, for when RRC connection reconstructions are carried out, the mesh preserved using the preserving module
The common configuration information for marking cell is searched for the Target cell and judges that the Target cell is resident if appropriate for the UE.
Using the method described in the embodiment of the present invention, base station and terminal, it is possible to achieve RRC after handoff failure or after RLF
The fast quick-recovery of connection, so as to improve Consumer's Experience, improves systematic function.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of low power nodes focus covering；
Fig. 2 is a kind of schematic diagram of low power nodes cell edge covering；
Fig. 3 is a kind of schematic diagram of low power nodes in-door covering；
Fig. 4 is the implement scene figure of the embodiment of the present invention 1,2,3；
Fig. 5 is the flow chart of the embodiment of the present invention 1；
Fig. 6 is the flow chart of the embodiment of the present invention 2；
Fig. 7 is the flow chart of the embodiment of the present invention 3；
Fig. 8 is the schematic diagram figure of another channel of acquisition common configuration information in base station in the embodiment of the present invention 3.
Specific embodiment
When user equipment (User Equipment, UE) switches failure or RLF, to prevent UE to be directly entered
RRC Idle state causes the current service disconnections of UE, and UE will initiate RRC connection reconstruction processes.RRC connection reconstructions need execution following
Operation, first UE carries out cell selection, and selection signal quality meets the cell of the resident conditions of UE, and in the process, UE needs to read
The system message of Target cell is taken, judges whether the signal quality of the cell meets the purpose of the resident conditions of UE and this is small to reach
Whether area allows the resident purposes of UE.After have selected suitable Target cell, UE initiates Stochastic accessing on Target cell, at random
After being successfully accessed, ready Target cell (possessing the Target cell of contextual informations of the UE in cell-of-origin) will recover RRC
Before connection reconstruction UE resident cell-of-origin be allocated to the SRB1 (Signal Radio Bear1, Signaling Radio Bearer 1) of UE,
SRB2 (Signaling Radio Bearer 2) and each DRB (Data Radio Bear, Data Radio Bearer).
The data traffic requirement growing to adapt to user, would be possible to largely dispose LPN nodes in traditional macro network,
So as to compared to traditional macro network, there will be many macrocells inside macrocell Zone switched with LPN cells.However, due to
The asymmetry of macro base station and low power nodes transmission power, the Zone switched relative macrocell between macrocell and LPN cells
Between it is Zone switched much smaller, so as to UE will be caused to be switched between macrocell and LPN cells the probability of failure and RLF
Increase.After handoff failure or after RLF in the recovery process of RRC connections, UE needs to read the system message of Target cell, with
The probability for handoff failure and RLF increases, and UE disappears in the system for carrying out being both needed to read when RRC connections recover Target cell every time
Breath, so as to cause RRC recovery processs slower, on the one hand reduces the business experience of user, on the other hand reduces systematic entirety energy.
To realize the fast quick-recovery of RRC connections, provided herein is following scheme：
UE current service cells own base station receives the instruction close to Target cell that the UE is reported, or receives on the UE
After the measurement report of the carrying target cell information of report, the common configuration information of Target cell is notified to the UE, the public affairs
Configuration information is connected for recovering UE with the RRC of Target cell altogether.
After UE receives the common configuration information of Target cell, the common configuration information is preserved, carrying out RRC connection reconstructions
When, use the common configuration information of the Target cell for being preserved to search for the Target cell and judge that the Target cell is
The no suitable UE is resident.
UE current service cells own base station obtains the common configuration information of Target cell one of in the following manner：
UE current service cells own base station when X2 interface is set up with Target cell own base station, from belonging to Target cell
Base station obtains the common configuration information of Target cell；
UE current service cells own base station is small from target when base station configuration information is updated with Target cell own base station
Area's own base station obtains the common configuration information of Target cell；
UE current service cells own base station receive that the UE reports close to Target cell instruction or carry target
After the measurement report of cell information, the common configuration information of Target cell is obtained from Target cell own base station；
UE current service cells own base station passes through network management system (Operation Administration and
Maintenance, OAM) obtain Target cell common configuration information.
Preferably, if UE current service cells own base station receive that the UE reports close to Target cell instruction or
After carrying the measurement report of target cell information, the common configuration information of Target cell is obtained, the base station is from Target cell institute
Contextual information during the common configuration information of category base station acquisition Target cell by UE in current service cell is sent to
The Target cell own base station.The contextual information of UE includes：RAB (Radio Access Bear, RAB) is configured
Information, in the security configuration information of cell A, and UE is in the relevant information such as RRC configuration information of cell A for UE.
Preferably, the UE receive and preserve base station notice Target cell common configuration information after, for this is public
Configuration information sets effective time, and more than the effective time, the common configuration information then fails.
Each Target cell has the common configuration information of oneself, and the common configuration information is the part in system message,
Including accessing information necessary to the Target cell.Can the common configuration information of the Target cell, including UE judge select
And configuration information necessary to accessing the Target cell, specifically include defined in related LTE technologies 3GPP 36.331
(system information block1 are for MIB (master information block, host system message block), SIB1
System block of information 1) and SIB2 (system information block2, system information block 2) in some or all of information,
It is such as part or all of including following information：
Frequency bandwidth information, (Physical Hybrid ARQ Indicator Channel, physical mixed is automatic for PHICH
Repeat requests indicate channel) configuration information, cell access relevant information (cellAccessRelatedInfo), cell selection phase
Pass information (cellSelectionInfo), common radio resources configuration information (radioResourceConfigCommon), base
Power information of standing etc..
Preferably for time division multiplex (Time Division Duplexing, TDD) system, the public of Target cell is matched somebody with somebody
Confidence breath also includes TDD configuration informations (tdd-Config).
Preferably, the common configuration information of Target cell can also include the more new logo of the common configuration information
(systemInfoValueTag), the system message of reading Target cell is needed, (such as UE initiates RRC and connects UE in Target cell
Reconstruction is connect, but the effective time of the common configuration information for having preserved is overtime) when, the more new logo in UE elder generations read system message,
Compare preservation common configuration information more new logo with read system message in renewal identify whether it is consistent, with decision be
No continuation read system message.Renewal mark in system message is located in SIB1.If two more new logos are consistent, mesh is illustrated
The system message for marking cell does not change, and UE need not be further continued for reading the system message, if two more new logos are inconsistent,
Then represent that the system message of Target cell there occurs change, UE needs to continue to read the system message.
Current service cell is probably macrocell or Microcell or cell；Target cell is probably macrocell or Microcell
Or cell, Target cell may have one to be likely to two or more.
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
Embodiment 1
As shown in figure 4, UE (405) is current to be in RRC connection status in Serving cell A (402), cell A is 401 base stations
A (eNB-A) is controlled.A low power nodes 403 are deployed with cell A coverages, for convenience of description referred to herein as base station B
(eNB-B) cell that, the low power nodes are covered is cell B (404), and the course of UE is as indicated at 406.The present embodiment reality
Now the scheme of the fast quick-recovery of RRC connections is as shown in Figure 5 after handoff failure or after RLF：
Step 501, UE sends the instruction close to cell B to base station A；
UE is sent out by the mechanism such as location information or the positional information of LPN cells for once accessing preserved according to UE
Now approached LPN cells B, UE to base station A send close to cell B instruction.In the instruction close to cell B, cell B is carried
Physical Cell Identifier (Physical Cell Identity, PCI), can also preferably carry cell B global cell mark
Know (Cell Global Identity, CGI), the PCI and CGI is that UE is last accesses what is preserved during cell B.
Step 502, base station A obtains request to the common configuration information that base station B sends cell B；
Base station A is received close to after the instruction of cell B, according to the CGI carried in the instruction close to cell B, or if
PCI is only carried close in the instruction of cell B, then base station A is according to the neighboring BS information preserved in the A of base station or according to from OAM
The neighboring BS information of acquisition, obtains the CGI of cell B, and then base station A sends the common configuration of cell B according to the CGI to base station B
Information acquisition request.
The common configuration information obtains the CGI of carrying cell B in request, it is preferred that base station A can also be in the cell
The common configuration information of B carries contextual informations of the UE in cell A in obtaining request, the mistake if follow-up UE switches to ensure
Lose or RLF after initiate RRC connection reconstructions when selection cell B when, cell B cells for ready for.UE contexts are believed
RAB (Radio Access Bear, RAB) configuration information for including of breath, UE cell A security configuration information,
The relevant informations such as RRC configuration information of the UE in cell A.
Step 503, base station B feeds back the common configuration information of cell B to base station A；
The common configuration information of the cell B include MIB, SIB1 specified in correlation LTE technologies 3GPP 36.331 and
The some or all of information of SIB2.Specifically, can such as include：
Frequency bandwidth information, (Physical Hybrid ARQ Indicator Channel, physical mixed is automatic for PHICH
Repeat requests indicate channel) configuration information, cell access relevant information (cellAccessRelatedInfo), cell selection phase
Pass information (cellSelectionInfo), common radio resources configuration information (radioResourceConfigCommon), base
Power information of standing etc..Specific items configuration information, may be referred to 3GPP TS36.331.
For time division multiplex (Time Division Duplexing, TDD) system, the configuration information of the cell B is also wrapped
TDD configuration informations (tdd-Config) are included, TDD configuration informations are with specific reference to 3GPPTS36.331.
The configuration information of the cell B can also include that the virtual value of the configuration information is identified
(systemInfoValueTag).Specific systemInfoValueTag refers to 3GPP TS36.331.
Step 504, after base station A receives the common configuration information of the cell B of base station B transmissions, the public of the cell B
Configuration information is sent to the UE；
UE preserves the common configuration information of cell B, it is preferred that UE can consider that the common configuration information of the cell B exists
Failed after a period of time, such as failed after 3 hours.
Step 505, Zone switched interior generation RLFs or handoff failure of the UE in cell A and cell B；
UE detects RLF because Serving cell a-signal Quality Down；Or the signal quality of cell B triggering base good enough
When the A that stands is the measurement report of triggering switching of UE configurations, the measurement report cannot be gone up because Serving cell a-signal quality is too poor
Report, or the measurement report successfully reports and give base station A, but because the too poor base station A of Serving cell a-signal quality switching command without
Method is sent to the reasons such as UE, causes UE handoff failures.
Step 506, UE initiates RRC connection reconstructions, searches for cell B using the common configuration information of cell B and judges small
Area B is resident if appropriate for UE；
UE when searching for cell B and judging that cell B is resident if appropriate for UE, directly uses 504 in RRC connection reconstructions
The common configuration information of acquired cell B, it is not necessary to which the public of the cell B is obtained by the system message for reading cell B
Configuration information, such that it is able to save hundreds of milliseconds of times of reading cell B system message for UE, accelerates the reconstruction speed of RRC connections
Degree, that is, accelerate the speed that RRC connections recover.
Additionally, in correlation technique, base station A only makes needs and UE is switched to other cells from the A of current service cell
Decision-making when, just can to base station A adjacent base station (such as base station B) send UE cell A UE contextual informations.Cut for non-
The situation of failure is changed, such as UE occurs the situation of RLF in cell A, it is more likely that the adjacent base station of base station A has not obtained UE small
The UE contexts of area A, so as to cause during the Target cell under UE RRC connection reconstructions to adjacent base station because Target cell does not have
The context of UE and cause RRC connection reconstructions fail.In view of this, base station A is sent to cell B requests to base station B in step 502
UE contextual informations of the UE in cell A also is have sent to base station B while common configuration information, can so be ensured to greatest extent
It is ready cell that UE initiates cell B during RRC connection reconstructions in step 506, such that it is able to ensure the success of RRC connection reconstructions,
It is final to accelerate the speed that RRC connections recover.
Embodiment 2
The present embodiment UE and network coverage situation with embodiment 1, as shown in Figure 4.The present embodiment realize after handoff failure or
The scheme of the fast quick-recovery of RRC connections is as shown in Figure 6 after person RLF：
Step 601, UE is to base station A reporting measurement reports；
UE measures and judges the signal quality of cell B higher than certain thresholding according to the configuration information of base station, but cell B
Signal quality can not yet meet the condition for UE being switched to from cell A cell B, and UE is to base station A reporting measurement reports, measurement report
The measurement result of the PCI and cell B of cell B is carried in announcement.
Step 602, base station A obtains request to the notice information that base station B sends cell B；
Base station A is received close to after the instruction of cell B, according to the neighboring BS information preserved in the A of base station or according to from OAM
The neighboring BS information of acquisition, obtains the CGI of cell B, and then base station A sends the common configuration of cell B according to the CGI to base station B
Information acquisition request.
The common configuration information obtains the CGI of carrying cell B in request, it is preferred that base station A can also be in the cell
The common configuration information of B carries contextual informations of the UE in cell A in obtaining request, the mistake if follow-up UE switches to ensure
Lose or RLF after initiate RRC connection reconstructions when selection cell B when, cell B cells for ready for.UE contexts are believed
RAB (Radio Access Bear, RAB) configuration information for including of breath, UE cell A security configuration information,
The relevant informations such as RRC configuration information of the UE in cell A.
Step 603~606, with step 503~506 of embodiment 1.
Embodiment 3
The present embodiment UE and network coverage situation with embodiment 1, as shown in Figure 4.The present embodiment realize after handoff failure or
The scheme of the fast quick-recovery of RRC connections is as shown in Figure 7 after person RLF：
Step 701, base station A and base station B sets up X2 interface, and specific steps include：
701a. base stations A sends X2 interface and sets up request (X2 SETUP REQUEST) to base station B, and the X2 interface is set up
In request, the common configuration information of the PCI, CGI and cell A of cell A under transmission base station A；
701b. base stations B sends X2 interface and sets up response (X2 SETUP RESPONSE) to base station A, and the X2 interface is set up
In response, base station B to base station A send base station B under cell B PCI, CGI and cell B common configuration information.
It should be noted that in the present embodiment, if having there is X2 interface between base station A and base station B, base station A is obtained
The process of the common configuration information of cell B can also be the process as shown in Figure 70 1 ' under the B of base station, i.e.,：
701 ' a. base stations B send base station configuration updating (ENB CONFIGURATION UPDATE), the base station to base station A
Config update includes the PCI of cell B, CGI, the common configuration information of cell B.
701 ' b. base stations A send base station configuration updating confirmation message (ENB CONFIGURATION UPDATE to base station B
ACKNOWLEDGE), acknowledging receipt of the config update information of the base station A.
Explanation is needed further exist for, in the present embodiment, if there is no direct physical connection, nothing between base station A and base station B
Method sets up X2 interface, such as no direct physical connection is possible between macro base station and Home eNodeB, then base station A can also pass through
OAM obtains the common configuration information of cell B under the B of base station, specific as shown in figure 8, not having between base station A (801) and base station B (802)
There is direct physical connection, but base station A and base station B can communicate with OAM (803), therefore base station A can be obtained by OAM
The common configuration information of cell B under the B of base station.
After base station A obtains the common configuration information of cell B, a certain moment, certain UE cuts near cell A's and cell B
Change region：
Step 702, UE sends instruction or the measurement report close to cell B to base station A；
UE is sent out by the mechanism such as location information or the positional information of LPN cells for once accessing preserved according to UE
Now approached LPN cells B, UE to base station A send close to cell B instruction.In the instruction close to cell B, cell B is carried
PCI, can also preferably carry the CGI of cell B.
Or UE is according to the configuration information of base station, measure and judge the signal quality of cell B higher than certain thresholding, but cell
The signal quality of B can not yet meet the condition for UE being switched to from cell A cell B, and UE is surveyed to base station A reporting measurement reports
The measurement result of the PCI and cell B of cell B is carried in amount report.
The common configuration information of cell B is sent to the UE by step 703, base station B；
After base station B receives measurement report, according to the neighboring BS information preserved in the A of base station or according to the neighbour obtained from OAM
Area's information, obtains the common configuration information of the 701 cell B for being obtained, and is sent to UE, and UE preserves the public of cell B and matches somebody with somebody
Confidence ceases, it is preferred that UE can consider that the common configuration information of the cell B fails over time.
Step 704~705, with step 505~506 of embodiment 1.
Embodiment 4
The base station of the above method, including receiver module and notification module are realized, wherein：
The receiver module, for receiving the instruction close to Target cell that the UE in this base station administration cell is reported, or
Receive the measurement report of the carrying target cell information that the UE is reported；
The notification module, for after the receiver module receives instruction or measurement report, by the public affairs of the Target cell
Configuration information notifies that, to the UE, the common configuration information is connected for recovering UE with the RRC of Target cell altogether.
Preferably, the base station also includes common configuration information acquisition module, and it is used to obtain mesh one of in the following ways
Mark the common configuration information of cell：
When X2 interface is set up in this base station and Target cell own base station, Target cell is obtained from Target cell own base station
Common configuration information；
When this base station and Target cell own base station update base station configuration information, mesh is obtained from Target cell own base station
Mark the common configuration information of cell；
This base station receive that the UE reports close to Target cell instruction or carry the measurement report of target cell information
After announcement, the common configuration information of Target cell is obtained from Target cell own base station；
The common configuration information of Target cell is obtained by network management system.
Preferably, the common configuration information acquisition module is additionally operable to obtaining Target cell from Target cell own base station
During common configuration information, the contextual information by the UE in current service cell is sent to the affiliated base of the Target cell
Stand.
Above-mentioned common configuration information includes：Some or all of information in MIB, SIB1 and SIB2.For TDD system,
The common configuration information also includes TDD configuration informations.Preferably, the common configuration information also includes the common configuration information
More new logo.
Embodiment 5
The terminal of the above method, including sending module, preserving module and connection recovery module are realized, wherein：
The sending module, for reporting the instruction close to Target cell to current service cell own base station, or to working as
Preceding Serving cell own base station report carries the measurement report of target cell information；
The preserving module, should for after the common configuration information for receiving the Target cell that the base station sends, preserving
The common configuration information of Target cell；
The connection recovery module, for when RRC connection reconstructions are carried out, the target preserved using the preserving module
The common configuration information of cell is searched for the Target cell and judges that the Target cell is resident if appropriate for the UE.
Preferably, the terminal also includes effective set of time module, and it is used to be public the matching somebody with somebody of preserving module preservation
Confidence breath sets effective time.
Above-mentioned common configuration information includes：Some or all of information in MIB, SIB1 and SIB2.For TDD system,
The common configuration information also includes TDD configuration informations.
Preferably, the common configuration information also more new logo including the common configuration information；The terminal also includes
System message reads decision-making module, and it is used for after the common configuration information for receiving Target cell, is believed by comparing common configuration
More new logo in breath and the renewal read from system message of target cell identify whether consistent to decide whether to continue reading
System message of target cell.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (16)
1. a kind of radio resource control RRC connects restoration methods, including：
User equipment (UE) current service cell own base station receives the instruction close to Target cell that the UE is reported, or receives this
After the measurement report of the carrying target cell information that UE is reported, the common configuration of Target cell is obtained from Target cell own base station
Information, and during the common configuration information for obtaining Target cell from Target cell own base station, by UE in current service
The contextual information of cell is sent to the Target cell own base station, and the common configuration information of Target cell is notified to described
UE, the common configuration information is connected for recovering UE with the RRC of Target cell.
2. the method for claim 1, it is characterised in that：
After the UE receives the common configuration information of Target cell, the common configuration information of the Target cell is preserved, carried out
During RRC connection reconstructions, the common configuration information of the Target cell for being preserved is used to search for the Target cell and judgement
The Target cell is resident if appropriate for the UE.
3. method as claimed in claim 2, it is characterised in that：
After UE preserves the common configuration information of the Target cell, methods described also includes：The UE sets for the common configuration information
It is set effective the time.
4. the method as described in claim 1 or 2 or 3, it is characterised in that：
The common configuration information includes that can UE judge select and access configuration information necessary to the cell B.
5. method as claimed in claim 4, it is characterised in that
The common configuration information includes：In host system message block MIB, system information block 1SIB1 and system information block 2SIB2
Some or all of information.
6. method as claimed in claim 5, it is characterised in that
The common configuration information includes one or more of following information：Frequency bandwidth information, physical mixed autonomous retransmission please
Instruction channel PHICH configuration informations are sought, cell accesses relevant information, and cell selection relevant information, common radio resources match somebody with somebody confidence
Breath, base station power information.
7. the method as described in claim 5 or 6, it is characterised in that：
For time division multiplex TDD system, the common configuration information also includes TDD configuration informations.
8. method as claimed in claim 4, it is characterised in that：
The common configuration information also more new logo including the common configuration information, UE receives the public of Target cell and matches somebody with somebody
After confidence breath, by the more new logo for comparing the more new logo in common configuration information with read from system message of target cell
Whether consistent decide whether to continue reading system message of target cell.
9. the method for claim 1, it is characterised in that：
Current service cell includes：Macrocell or Microcell or cell；The Target cell includes the one kind in following cell
Or it is several：Macrocell, Microcell, cell.
10. a kind of radio resource control RRC connection recovers base station, including receiver module and notification module, also including common configuration
Data obtaining module, wherein：
The receiver module, the finger close to Target cell for receiving the reported by user equipment UE in this base station administration cell
Show, or receive the measurement report of the carrying target cell information that the UE is reported；
The common configuration information acquisition module, for receive that the UE reports close to Target cell instruction or carry mesh
After marking the measurement report of cell information, the common configuration information of Target cell is obtained from Target cell own base station；It is additionally operable to
During obtaining the common configuration information of Target cell from Target cell own base station, by the UE in the upper of current service cell
Context information is sent to the Target cell own base station；
The notification module, for after the receiver module receives instruction or measurement report, by the public of the Target cell
Configuration information notifies that, to the UE, the common configuration information is connected for recovering UE with the RRC of Target cell.
11. base stations as claimed in claim 10, it is characterised in that：
The common configuration information includes：In host system message block MIB, system information block 1SIB1 and system information block 2SIB2
Some or all of information.
12. base stations as claimed in claim 11, it is characterised in that：
For time division multiplex TDD system, the common configuration information also includes TDD configuration informations.
13. base stations as claimed in claim 11, it is characterised in that：
The common configuration information also more new logo including the common configuration information.
A kind of 14. radio resource control RRC connections recover terminal, including sending module, preserving module and connection recovery module, also
Decision-making module is read including effective set of time module and system message, wherein：
The sending module, for reporting the instruction close to Target cell to current service cell own base station, or to current
Serving cell own base station report carries the measurement report of target cell information；
The preserving module, for after the common configuration information for receiving the Target cell that the base station sends, preserving the mesh
Mark the common configuration information of cell；The common configuration information includes the more new logo of the common configuration information；
The connection recovery module, for when RRC connection reconstructions are carried out, the target preserved using the preserving module to be small
The common configuration information in area is searched for the Target cell and judges that the Target cell is resident if appropriate for user equipment (UE)；
The effective time setup module, the common configuration information for being preserved for the preserving module sets effective time；
The system message reads decision-making module, for after the common configuration information for receiving Target cell, by relatively more public
More new logo in configuration information and the renewal of the reading from system message of target cell altogether identifies whether consistent deciding whether
Continue reading system message of target cell.
15. terminals as claimed in claim 14, it is characterised in that：
The common configuration information also includes：In host system message block MIB, system information block 1SIB1 and system information block 2SIB2
Some or all of information.
16. terminals as claimed in claim 15, it is characterised in that：
For time division multiplex TDD system, the common configuration information also includes TDD configuration informations.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231445.7A CN102932857B (en) | 2011-08-12 | 2011-08-12 | Radio resource control (RRC) connection recovery method, base station and terminal |
| PCT/CN2012/071687 WO2012155595A1 (en) | 2011-08-12 | 2012-02-28 | Method, base station and terminal for recovering radio resource control connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110231445.7A CN102932857B (en) | 2011-08-12 | 2011-08-12 | Radio resource control (RRC) connection recovery method, base station and terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102932857A CN102932857A (en) | 2013-02-13 |
| CN102932857B true CN102932857B (en) | 2017-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110231445.7A Expired - Fee Related CN102932857B (en) | 2011-08-12 | 2011-08-12 | Radio resource control (RRC) connection recovery method, base station and terminal |
Country Status (2)
| Country | Link |
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| CN (1) | CN102932857B (en) |
| WO (1) | WO2012155595A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2983438B1 (en) * | 2013-04-03 | 2018-10-24 | Huawei Technologies Co., Ltd. | Data transmission method, communication device and communication system |
| CN104113874B (en) * | 2013-04-16 | 2019-06-25 | 电信科学技术研究院 | It is a kind of to measure the method and device reported |
| CN105282794A (en) * | 2014-06-23 | 2016-01-27 | 中国移动通信集团公司 | Base station configuration and cell selection/switching method, device and system and associated equipment |
| EP3179765B1 (en) * | 2014-09-03 | 2019-05-15 | Huawei Technologies Co. Ltd. | Characteristic configuration apparatus and method |
| CN106028470B (en) * | 2016-07-29 | 2019-07-09 | 武汉虹信通信技术有限责任公司 | A kind of method for realizing radio resource control connection reestablishment and small base station cluster controller |
| EP3562258B1 (en) * | 2017-01-25 | 2021-05-05 | Huawei Technologies Co., Ltd. | Communication method, apparatus and computer readable storage medium |
| CN108886720B (en) * | 2017-03-14 | 2020-10-27 | 北京小米移动软件有限公司 | System message transmission method and device |
| MX2019015670A (en) * | 2017-07-21 | 2020-02-26 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Multi-connection recovery method in non-activated state and device therefor. |
| CN109392031B (en) * | 2017-08-04 | 2020-08-28 | 北京佰才邦技术有限公司 | Cell switching method, terminal equipment and original base station |
| KR20190131411A (en) * | 2018-05-16 | 2019-11-26 | 삼성전자주식회사 | Method and apparatus for collecting and reporting cell measurement information in wireless communication system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101400017B (en) * | 2007-09-29 | 2012-09-19 | 北京三星通信技术研究有限公司 | Method for continuously receiving broadcast multicast service data supporting evolution |
| CN102388654B (en) * | 2009-04-27 | 2015-11-25 | 华为技术有限公司 | A kind of service restoration method of cordless communication network, Apparatus and system |
| CN101998579A (en) * | 2009-08-11 | 2011-03-30 | 中兴通讯股份有限公司 | Method and system for providing cell information of home base station for user equipment |
| CN102149195A (en) * | 2010-02-09 | 2011-08-10 | 中兴通讯股份有限公司 | Method and system for processing public configuration information |
| CN102076031A (en) * | 2011-01-13 | 2011-05-25 | 大唐移动通信设备有限公司 | Method and device for configuring cell information |
-
2011
- 2011-08-12 CN CN201110231445.7A patent/CN102932857B/en not_active Expired - Fee Related
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2012
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| Publication number | Publication date |
|---|---|
| WO2012155595A1 (en) | 2012-11-22 |
| CN102932857A (en) | 2013-02-13 |
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