CN102265669B - Method for processing cell radio link failure and user equipment - Google Patents
Method for processing cell radio link failure and user equipment Download PDFInfo
- Publication number
- CN102265669B CN102265669B CN200980146459.XA CN200980146459A CN102265669B CN 102265669 B CN102265669 B CN 102265669B CN 200980146459 A CN200980146459 A CN 200980146459A CN 102265669 B CN102265669 B CN 102265669B
- Authority
- CN
- China
- Prior art keywords
- subscriber equipment
- radio link
- link failure
- current area
- cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
A method for processing cell radio link failure and a user equipment are provided, wherein the method includes: determining the radio link failure occurs in a current cell, and detecting whether there are other cells providing service for a current user equipment; when there is at least one another cell providing service for the current user equipment, and the current cell is a serving cell of the current user equipment, indicating another cell to change to the serving cell of the current user equipment. When it is detected that the radio link failure occurs in the serving cell of the user equipment, the method can indicate another assist cell which is providing service for the user equipment to change to the serving cell, so as to realize the serving cell functions, and ensure normal communication of the user equipment.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of method for processing cell radio link failure and subscriber equipment.
Background technology
In order to satisfy the requirement of IMT-Advanced (IMT-Advanced), support is up to the peak data rate of 1GHz, and 3GPP LTE-ADVANCED (the evolution version of Long Term Evolution) system has been agreed at present with the method for carrier convergence technology as its expanding system bandwidth.The carrier convergence technology is mainly that a plurality of component carriers are pooled one higher than the carrier wave of 20MHz, to support high speed data transfer.
It is CoMP (Coordinated multi-point, coordinated multipoint transmission) technology that another technology is being studied by 3GPP LTE-ADVANCED system.This CoMP technology has two kinds of basic pattern: CS (Coordinated scheduling and/or beamforming, cooperation transmission) pattern and JP (Joint processing/transmission, common transmission) pattern now.Under the CS pattern, data are to be transferred to a UE (User Equipment, subscriber equipment) from a transfer point; Under the JP pattern, data are to be transferred to simultaneously a UE from a plurality of transfer points.No matter be in the sort of pattern of CoMP, a plurality of residential quarters in CoMP set (coordinated multipoint transmission collection) are to need to keep synchronous.Under the CoMP scene, Radio Link Failure might occur in the Serving cell of subscriber equipment, causes subscriber equipment to work, and how to guarantee when Serving cell generation Radio Link Failure that the work of subscriber equipment just becomes a problem.
Summary of the invention
The embodiment of the present invention provides a kind of method for processing cell radio link failure and subscriber equipment, with when Radio Link Failure appears in Serving cell, realizes the switching of Serving cell, to guarantee the normal operation of subscriber equipment.
The embodiment of the present invention provides a kind of method for processing cell radio link failure, comprising:
Determine that Radio Link Failure appears in current area, check whether exist other residential quarter to provide service for subscriber equipment;
When existing at least one other residential quarter to provide service and described current area to be the Serving cell of subscriber equipment for subscriber equipment, indicate the Serving cell that other cell change is described subscriber equipment.
The embodiment of the present invention also provides a kind of subscriber equipment, comprising:
Failure determining unit in residential quarter is used for determining that Radio Link Failure appears in current area, and checks whether exist other residential quarter to provide service for described subscriber equipment;
The cell change indicating member, be used for obtaining the check result of described residential quarter failure determining unit, when existing at least one other residential quarter to provide service and described current area to be the Serving cell of described subscriber equipment for described subscriber equipment, indicate the Serving cell that other cell change is described subscriber equipment.
By such scheme as can be known, the embodiment of the present invention can be when Radio Link Failure appears in the Serving cell of finding subscriber equipment, indicate other for being Serving cell to realize the Serving cell function for described subscriber equipment provides the cell change of service, guarantee the proper communication of subscriber equipment.
The embodiment of the present invention also provides a kind of carrier wave wireless link failure detection method, comprising:
When occurring mixed automatic retransfer request failure on carrier wave, the beginning timing;
After timing time arrived, in statistics timing time section, the number of times of mixed automatic retransfer request failure appearred in described carrier wave;
When institute's statistics number reaches predetermined threshold, determine described carrier wave generation Radio Link Failure.
The embodiment of the present invention also provides a kind of subscriber equipment, comprising:
The unit is initiated in timing, is used for when occurring mixed automatic retransfer request failure on carrier wave the beginning timing;
The number of times statistic unit is used for after the timing time arrival of unit is initiated in described timing, and in statistics timing time section, the number of times of mixed automatic retransfer request failure appears in described carrier wave;
The failure judging unit is used for determining described carrier wave generation Radio Link Failure when institute's statistics number reaches predetermined threshold.
By such scheme as can be known, the embodiment of the present invention only need to be added up the number of times that mixed automatic retransfer request failure appears in a period of time intercarrier, and compares with predetermined threshold, just can detect carrier wave and Radio Link Failure whether occur, realizes simple.
Description of drawings
The schematic diagram of a kind of cell radio link failure detection method that Fig. 1 provides for the embodiment of the present invention one;
The schematic diagram of a kind of method for processing cell radio link failure that Fig. 2 provides for the embodiment of the present invention two;
The schematic diagram of a kind of Serving cell variation that Fig. 3 provides for the embodiment of the present invention three;
The schematic diagram of a kind of carrier wave wireless link failure detection method that Fig. 4 provides for the embodiment of the present invention four;
A kind of cell radio link failure that Fig. 5 provides for the embodiment of the present invention five detects the schematic diagram with processing method;
The schematic diagram of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention six;
The schematic diagram of a kind of subscriber equipment that Fig. 7 provides for the embodiment of the present invention seven;
The schematic diagram of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention eight;
The schematic diagram of a kind of subscriber equipment that Fig. 9 provides for the embodiment of the present invention nine;
The schematic diagram of the method for a kind of residential quarter of determining to occur Radio Link Failure that Figure 10 provides for the embodiment of the present invention ten;
The schematic diagram of a kind of subscriber equipment that Figure 11 provides for the embodiment of the present invention 11.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present invention are described in detail.Need to prove, following examples are only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment of the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The Radio Link Failure detection scheme that provides in a kind of prior art is only applicable to the single carrier scene, that is to say, the prior art only detects a component carrier and Radio Link Failure whether occurs, how not to detect and provide the solution whether residential quarter of supporting multicarrier Radio Link Failure occurs.The schematic diagram of a kind of cell radio link failure detection method that Fig. 1 provides for the embodiment of the present invention one, the method comprises:
S11: Radio Link Failure appears in the current component carrier of determining subscriber equipment;
S12: check in current area whether exist other that component carrier of service is provided for described subscriber equipment;
S13: when not existing other to provide the component carrier of service for described subscriber equipment in described current area, judge that Radio Link Failure appears in described current area.
The present embodiment judges in the residential quarter of current user equipment whether exist other component carrier to serve subscriber equipment, to judge described residential quarter, whether the connection failure of Radio Link to occur, and determination methods is simple and be easy to realize.Be appreciated that described current area is that the residential quarter of service is provided for described subscriber equipment; Described current component carrier provides the component carrier of service with other for described subscriber equipment, be that current area is the component carrier of described user device configuration, and these component carriers are used to this subscriber equipment that service is provided; Described Radio Link Failure can comprise up-link wireless link failure and/or down wireless link failure.Current area occurs can't normally providing service for subscriber equipment after Radio Link Failure.Be appreciated that, the current area of subscriber equipment can have a plurality of, these current area can cooperate with each other as subscriber equipment provides service, thereby consist of the cooperation transmission cell set, this moment current component carrier namely described cooperation transmission cell set be the component carrier of current user equipment configuration.
Radio Link Failure appears in the current component carrier for the how to confirm subscriber equipment, and several different methods can be arranged.In a kind of concrete application, described current component carrier is descending component carrier.The physical layer of subscriber equipment detects current descending component carrier and step-out (out-of-sync) occurs, and reporting the first Indication message to RRC (control of the Radio Resource Control Radio Resource) layer of subscriber equipment, step-out appears with this descending component carrier of indication.Correspondingly, described rrc layer receives described the first Indication message, and starts a timer T310, if described rrc layer is received synchronous (in-sync) message of described physical layer in the timing of timer T310, stops described timer T310; If described rrc layer is received the first Indication message in the timing of timer T310 always, think that described descending component carrier generation down wireless link is failed.Be appreciated that whether the down wireless link failure how to detect current descending component carrier for rrc layer, also have other method in prior art if occuring, the present embodiment is not done restriction to this.
In the concrete application of another kind, described current component carrier is up component carrier.The MAC of subscriber equipment (Media Access Control, media interviews are controlled) when layer can random access failure occur on current up component carrier, rrc layer to subscriber equipment reports the second Indication message, random access failure occurs to indicate current up component carrier.Correspondingly, described rrc layer receives the second indication information, if described rrc layer did not connect foundation, connection re-establishment or connection and reshuffled this moment, thinks that the up-link wireless link failure appears in this up component carrier.Particularly, described rrc layer can check after receiving the second indication information whether timer T300, T301, T304, T311 start, if above-mentioned timer T300, T301, T304, T311 are not activated, show that described rrc layer does not connect foundation, connection re-establishment or connection and reshuffles, the up-link wireless link failure appears in this up component carrier.Be appreciated that, detect and determine whether current up component carrier Radio Link Failure occurs and also have other method, for example, the RLC of subscriber equipment (Radio Link Control, Radio Link is controlled) when layer can reach maximum number of retransmissions on up component carrier before deserving to rrc layer transmission the 3rd Indication message of subscriber equipment, to indicate current up component carrier to occur retransmitting unsuccessfully, described rrc layer receives described the 3rd Indication message, and thinks that the up-link wireless link failure appears in this up component carrier.Again for example, described rlc layer sends the 3rd Indication message to described rrc layer when reaching the number of retransmissions of maximum, retransmitting unsuccessfully appears in indication, but possibly can't specifically specify is which component carrier has occured to retransmit unsuccessfully, this moment, described rrc layer was received described the 3rd Indication message, can think that Radio Link Failure has occured in whole wireless connections.
Detect for other method whether a component carrier Radio Link Failure occurs, the present embodiment will not enumerate.
Further, described method also can comprise: when there is the component carrier that other Radio Link Failure does not occur in described subscriber equipment, service node sends a notice signaling in the described current area, Radio Link Failure occurs to notify the described current component carrier of described service node.Be appreciated that to provide the current area of service to have a plurality of for subscriber equipment, thereby consist of cell set.Particularly, described service node can be base station (eNodeB) or via node (Relay Node, RN).The some realization in the component carrier of Radio Link Failure can not occur by described other in described transmission notice signaling.
The schematic diagram of a kind of method for processing cell radio link failure that Fig. 2 provides for the embodiment of the present invention two, the method comprises:
S21: determine that Radio Link Failure appears in current area, check whether exist other residential quarter to provide service for current user equipment;
S22: when existing at least one other residential quarter to provide service and described current area to be the Serving cell of current user equipment for current user equipment, indication one other cell change is the Serving cell of current user equipment.
Be appreciated that in the CoMP technology, comprise 2 kinds for subscriber equipment provides the residential quarter of service: Serving cell (Serving Cell) and assisted cell (Assist Cell).Although Serving cell and assisted cell are all for subscriber equipment provides service, what assisted cell played is the assistant service function.A subscriber equipment can have a plurality of residential quarters to provide service for it simultaneously, and wherein Serving cell can only have one, and that assisted cell can have is a plurality of.In the present embodiment, if Radio Link Failure appears in Serving cell and this current residential quarter that described current area is current user equipment, current user equipment can indicate other for changing to Serving cell for described subscriber equipment provides an assisted cell of service, so that the Serving cell function is realized in the residential quarter after more when it's convenient, guarantee the proper communication of subscriber equipment.The described method of the present embodiment is applicable to single-carrier cell and multi-carrier district.It will be appreciated by those skilled in the art that, the described method for processing cell radio link failure of embodiment two also can combine with the described cell radio link failure detection method of embodiment one, when cell radio link failure being detected, can continue to utilize the described method of embodiment two to process.Have severally for it provides the residential quarter of service as for subscriber equipment, and which in these residential quarters is that the Serving cell of described subscriber equipment can be pre-configured.Certainly, in the present embodiment, Radio Link Failure appears in the how to confirm current area also can not pass through the method for detection, and can know that Radio Link Failure appears in current area by the notification message that receives base station or other node.
Be appreciated that when only having other residential quarter to provide service and described current area when being the Serving cell of current user equipment for current user equipment, can indicate this other cell change the Serving cell that is current user equipment.When existing at least 2 other residential quarters to provide service and described current area to be the Serving cell of current user equipment for current user equipment, can select a residential quarter at least in described 2 other residential quarters, indicating selected cell change is the Serving cell of current user equipment.Preferably, can select service quality best residential quarter at least in described 2 other residential quarters, and to indicate selected cell change be the Serving cell of current user equipment, can guarantee the service quality that subscriber equipment obtains like this.Be appreciated that the Serving cell that cell change of indication is current user equipment namely indicates the base station of this residential quarter to carry out described cell change.
Further, the method also can comprise: when existing at least one other residential quarter to provide service and described current area to be the assisted cell of current user equipment for current user equipment, notify the described current area of Serving cell of current user equipment Radio Link Failure to occur.Residential quarter if there is Radio Link Failure is the assisted cell of current user equipment, certainly exist the Serving cell of current user equipment in described at least one other residential quarter, current user equipment can be with its Serving cell of message informing of current assisted cell Radio Link Failure, so that its Serving cell is processed.Alternatively, current user equipment also can be with other assisted cell of message informing of current assisted cell Radio Link Failure.Particularly, in current user equipment during with its Serving cell of message informing of current assisted cell Radio Link Failure, the new definition of the message that adopts of notice also can increase some fields and with indication, Radio Link Failure occurs as notification message in existing message.
Further, described method also can comprise: when not existing other residential quarter to provide service for current user equipment, attempt recovering to be connected with described current area.
The schematic diagram of a kind of Serving cell variation that Fig. 3 provides for the embodiment of the present invention three, the method comprises:
S31: with an assisted cell of current user equipment as target serving district;
S32: the base station to current user equipment sends the ascending resource allocation request message;
S33: message is set up in the connection that receives the transmission of described base station, connects with described target serving district.
In the present embodiment, subscriber equipment can be selected to connect with assisted cell, and after connecting foundation, former assisted cell will become the Serving cell of subscriber equipment, the completion service cell change, and the method is applicable to single-carrier cell and multi-carrier district.Particularly when subscriber equipment finds that Radio Link Failure appears in its Serving cell, can carry out corresponding Serving cell change, make an assisted cell of subscriber equipment change to Serving cell, to guarantee the proper communication of subscriber equipment.Be appreciated that the respective cell change can not only be applied in when Radio Link Failure occurring, also can be applicable to the scene that other need to carry out the Serving cell change.In the present embodiment, described connection is set up message and is included but not limited to that the Radio Resource control connection sets up the vertical message of message, radio resource control connection reestablishment, wireless resource control connection reconfiguration message etc. and be used for the message that subscriber equipment and residential quarter connect, corresponding message is provided for the base station of current user equipment, then, sent to connect to subscriber equipment by described base station and set up message, can connect with target serving district with equipment for indicating user.
Further, a described assisted cell with current user equipment can comprise as target serving district: when described current user equipment has a plurality of assisted cell, select an assisted cell as target serving district from described a plurality of assisted cells.In a kind of concrete application, the standard of select target Serving cell can be the quality of residential quarter.That is to say, subscriber equipment can select in a plurality of assisted cells service quality best residential quarter as target serving district, guarantees to obtain good communication quality.
In a kind of specific implementation, the ascending resource allocation request message that sends to the base station of described target serving district is a targeting signal, after sending described targeting signal, but timing adjustment order (TA) and uplink authorization (Grant) that the base station of subscriber equipment receiving target Serving cell sends, and initiate connection request to the base station of target serving district.Described base station initiation connection request to target serving district can be the vertical request of base station transmission radio resource control connection reestablishment (the RRC Connection Reestablishment Request) message to target serving district, here also can send other message and replace, reshuffle (RRC Connection Reconfiguration) message etc. as sending wireless resource control connection request (RRC Connection Request) message or sending Radio Resource control.The necessary informations such as Radio Link Failure appear in the reason that also can comprise in the described message that sends and need connection re-establishment, reshuffle etc. as Serving cell.
In another kind of specific implementation, described base station to described target serving district sends the ascending resource allocation request message and can further comprise: the base station to described target serving district sends the Special leader signal, and described Special leader signal is used for need to changing Serving cell to target serving district indication current user equipment.Described Special leader signal can be predefined, makes subscriber equipment and base station both sides can learn the effect of this Special leader signal.Subscriber equipment can send this Special leader signal when Radio Link Failure appears in its Serving cell, the base station of target serving district receives that this signal just can know that subscriber equipment Radio Link Failure occurred in its current area, if the Serving cell change is agreed to carry out in the base station of target serving district, can send the message such as RRC Connection Reestablishment or RRC Connection Reconfiguration to this subscriber equipment, make subscriber equipment can complete the foundation that is connected with target serving district.
In the concrete application of another kind, if be all that subscriber equipment has been reserved identical PUCCH (physical uplink control channel for subscriber equipment provides all residential quarters of service, Physical Uplink Control Channel) resource, the ascending resource allocation request message that sends to the base station of described target serving district can be a PUCCH SR (Scheduling Request, dispatch request).Respective cell can learn which subscriber equipment has sent this request after receiving PUCCH SR, thereby further equipment for indicating user carries out connection re-establishment.
The embodiment of the present invention also provides a kind of new Radio Link Failure detection method, can detect easily carrier wave and Radio Link Failure whether occur.The schematic diagram of a kind of carrier wave wireless link failure detection method that Fig. 4 provides for the embodiment of the present invention four, the method comprises:
S41: when mixed automatic retransfer request (HARQ, HybridAutomatic Repeat Request) failure occurring on carrier wave, the beginning timing;
S42: after timing time arrived, in statistics timing time section, the number of times of mixed automatic retransfer request failure appearred in described carrier wave;
S43: when institute's statistics number reaches predetermined threshold, determine described carrier wave generation Radio Link Failure.
The present embodiment provides a kind of new method that whether occurs Radio Link Failure in detected carrier, described method can be carried out at the MAC layer, by the mixed automatic retransfer request frequency of failure occurring to judge whether this carrier wave of carrier wave Radio Link Failure occurs on MAC layer statistics carrier wave, need not to carry out cross-layer and detect, realize simple.Further, after the MAC layer detects a carrier wave generation Radio Link Failure, can notify rrc layer with testing result, by the rrc layer timing and add up the described frequency of failure, judge whether described carrier wave Radio Link Failure occurs.The present embodiment can be applicable to the detection of the up-link wireless link failure of carrier wave.
Further, the method also can comprise: before timing arrives, if occurring mixed automatic retransfer request success on described carrier wave or enter discontinuous reception (DRX, Discontinuous Reception) state on described carrier wave, stop timing.
Above-mentioned carrier wave wireless link failure detection method is applicable to the situation of single carrier or multicarrier.For the multicarrier situation, after determining a certain carrier wave generation Radio Link Failure, need to judge whether the carrier wave of described generation Radio Link Failure is main (Anchor) carrier wave, if the carrier wave of described generation Radio Link Failure is the Anchor carrier wave of current user equipment, need to upgrade the Anchor carrier wave, be about to other carrier wave that Radio Link Failure do not occur and change to the Anchor carrier wave.Particularly, the carrier wave that Radio Link Failure which do not occurred can be definite voluntarily by subscriber equipment as new Anchor carrier wave, and after renewal was completed, subscriber equipment can upgrade informing base station as a result.Subscriber equipment also can with the demand informing base station of change Anchor carrier wave, then be determined new Anchor carrier wave by the base station, and will be determined notifying user equipment as a result.
The described method of the present embodiment can be applicable to the scene of multicarrier.When there is a plurality of service carrier wave in a subscriber equipment, can one timer be set to add up the HARQ frequency of failure on this carrier wave for each carrier wave at the MAC of subscriber equipment layer.When the MAC layer is found on certain carrier wave, the HARQ failure to occur, check whether timer T corresponding to this carrier wave starts, and starts described timer T if described timer T also is not activated, and begin to record the HARQ frequency of failure on this carrier wave; The HARQ frequency of failure if described timer T has started with this carrier wave adds 1.When the MAC layer is found on certain carrier wave the HARQ success, check whether corresponding timer T starts, and stops the timing of described timer T if described timer T has started, and the HARQ frequency of failure of record is returned 0.Find to enter the DRX state on a certain carrier wave when the MAC layer, check whether timer T corresponding to this carrier wave starts, stop the timing of this timer T if described timer T starts, and the HARQ frequency of failure of record is returned 0.Find that when the MAC layer timer T is overtime, check the HARQ frequency of failure of the corresponding carrier wave that this timer T has recorded, if the described frequency of failure reaches predetermined number of times thresholding, think this carrier wave generation Radio Link Failure; If the described frequency of failure does not reach predetermined number of times thresholding, the HARQ frequency of failure of corresponding carriers of record is returned 0.The number of times thresholding here can be configured by network, for example network can carry described configuration in system message, can set up in concrete connection, reshuffle, re-establish etc. in message and carry described configuration, make subscriber equipment can learn according to described message the configuring condition of network.
Further, the MAC layer can also only detect HARQ failure or the success of single on each carrier wave, in case the HARQ failure has occured on certain carrier wave, concrete carrier wave and HARQ failure information thereof are sent to rrc layer, carried out detection and the statistics of up-link wireless link failure by rrc layer.In a single day rrc layer receives certain carrier wave and timer T has occured can to start immediately after the indication of up-link wireless link failure and the number of times of HARQ failure is carried out record.Between the starting period, in case the HARQ success on some carrier waves of MAC layer, perhaps the MAC layer enters the DRX state on this carrier wave, indicates immediately rrc layer can stop timer T at timer.In case and timer T is overtime, rrc layer can judge whether counter reaches predetermined threshold, if reach predetermined threshold think that the up-link wireless link failure has occured carrier wave corresponding to this counter, otherwise timeing closing device and counter is made zero.MAC layer detection method before being different from, the method can obtain carrier wave whether the up-link wireless link failure occurs by the common detection of MAC layer and rrc layer.
Be appreciated that said method embodiment can realize by interosculating a series of complete functions such as the detection of carrier wave wireless link failure, cell radio link failure detection, cell radio link failure processing and service cell change.A kind of cell radio link failure that Fig. 5 provides for the embodiment of the present invention five detects the schematic diagram with processing method, and the method comprises:
S51: determine that by detecting Radio Link Failure appears in a current component carrier.
Detect a certain current component carrier and Radio Link Failure whether occurs several different methods is arranged, can be by the method for describing in embodiment one.Make the physical layer of subscriber equipment to rrc layer report one Indication message, indicate current component carrier Radio Link to occur abnormal, rrc layer can judge further whether current component carrier Radio Link Failure occurs, and decision method repeats no more after receiving indication.Also can only adopt the described MAC layer of embodiment four carrier wave wireless link failure detection method to detect, when mixed automatic retransfer request failure appears in a component carrier, the beginning timing, the mixed automatic retransfer request frequency of failure that in the statistics timing time, this component carrier occurs, by more described number of times and predetermined threshold, determine whether component carrier Radio Link Failure occurs.
S52: check whether current user equipment exists other component carrier, if so, carries out S53; If not, carry out S54.How many component carriers are current user equipment exist, and normally system configuration is good.
S53: service node sends a notice signaling in this current residential quarter, Radio Link Failure occurs to notify the described current component carrier of described service node.If the carrier wave of described generation Radio Link Failure is the Anchor carrier wave of current user equipment, need informing base station change Anchor carrier wave, be about to the Anchor carrier wave and change to the carrier wave that other Radio Link Failure do not occur.
S54: check except current area, whether exist other residential quarter to provide service for current user equipment, if not, carry out S55; If so, carry out S56.
S55: attempt recovering to be connected with described current area.
S56: judge whether current area is the Serving cell of current user equipment, if not, carry out S57; If so, carry out S58.
S57: notify the described current area of Serving cell of current user equipment in other residential quarter Radio Link Failure to occur.
S58: with other residential quarter as target serving district.Particularly, when existing a plurality of other residential quarters also providing when service for subscriber equipment, can select service quality best residential quarter as target serving district in a plurality of other residential quarters, certainly, select the method for assisted cell that alternate manner can be arranged, herein no longer expansion.
S59: the base station to described target serving district sends the ascending resource allocation request message.
S510: receive that the Radio Resource control connection that the base station of described target serving district sends is set up, radio resource control connection reestablishment is vertical or connect and the message such as reshuffle, connect with described target serving district.
The present embodiment provides the complete residential quarter that judges Radio Link Failure whether to occur, and carries out the method for respective handling after cell radio link failure, guarantees that subscriber equipment can proper communication at the generation cell radio link failure.In the present embodiment, some steps are only general description, and detailed process can be referring to other embodiment before.
The schematic diagram of a kind of subscriber equipment that Fig. 6 provides for the embodiment of the present invention six, this subscriber equipment can be used for detecting its residential quarter and Radio Link Failure whether occurs, comprising:
Carrier wave failure determining unit 61 is used for determining that Radio Link Failure appears in the current component carrier of subscriber equipment;
Subscriber equipment inspection unit 62 is used for obtaining definite result of carrier wave failure determining unit 61, and checks in current area whether exist other that component carrier of service is provided for described subscriber equipment;
In the present embodiment, whether have other component carrier that service is provided if subscriber equipment need to judge current area, can judge whether described subscriber equipment and current area the connection failure of Radio Link occurs, determination methods is simple and be easy to realize.Further, described subscriber equipment also comprises: carrier wave failure notification unit, be used for when described subscriber equipment inspection unit 62 checks that discovery exists other that component carrier of Radio Link Failure does not occur, service node sends a notice signaling in this current residential quarter, Radio Link Failure occurs to notify the described current component carrier of described service node.
The schematic diagram of a kind of subscriber equipment that Fig. 7 provides for the embodiment of the present invention seven, this subscriber equipment can carry out respective handling when Radio Link Failure appears in its residential quarter, comprising:
Failure determining unit 71 in residential quarter is used for determining that Radio Link Failure appears in current area, and checks whether exist other residential quarter to provide service for described subscriber equipment;
Cell change indicating member 72, be used for obtaining the check result of residential quarter failure determining unit 71, when existing at least one other residential quarter to provide service and described current area to be the Serving cell of described subscriber equipment for described subscriber equipment, indicate the Serving cell that other cell change is described subscriber equipment.
The subscriber equipment of the present embodiment can guarantee proper communication by the change Serving cell after Radio Link Failure appears in current area.Further, described subscriber equipment also can comprise: failure notification unit, residential quarter, be used for obtaining the check result of residential quarter failure determining unit 71, when existing at least one other residential quarter to provide service and described current area to be the assisted cell of described subscriber equipment for described subscriber equipment, notify the described current area of Serving cell of described subscriber equipment Radio Link Failure to occur.Further, described subscriber equipment also can comprise: connect and attempt the unit, be used for obtaining the check result of residential quarter failure determining unit 71, when not existing other residential quarter to provide service for described subscriber equipment, attempt recovering to be connected with described current area.Be appreciated that the described subscriber equipment of embodiment seven can comprise all or part of unit of subscriber equipment in embodiment six, with detection and the processing that realizes the unlimited link failure in residential quarter.
The schematic diagram of a kind of subscriber equipment that Fig. 8 provides for the embodiment of the present invention eight, this subscriber equipment can indicate its assisted cell to change to its Serving cell, comprising:
Target cell determining unit 81 is used for an assisted cell with described subscriber equipment as target serving district;
Distribute request unit 82, be used for sending to the base station ascending resource allocation request message;
Connect and set up unit 83, set up message for the connection that receives the transmission of described base station, connect with described target serving district.
The present embodiment can be realized the Serving cell change of subscriber equipment, satisfies the Serving cell of subscriber equipment and changes demand.Be appreciated that residential quarter determining unit 81 in the present embodiment, distribute request unit 82 to set up with being connected the cell change indicating member 72 that unit 83 can be positioned at embodiment seven, thereby realize the change of Serving cell.
The schematic diagram of a kind of subscriber equipment that Fig. 9 provides for the embodiment of the present invention nine, this subscriber equipment can be used for the detection of carrier wave wireless link failure, comprising:
Number of times statistic unit 92 is used for after the timing time arrival of unit 91 is initiated in timing, and in statistics timing time section, the number of times of mixed automatic retransfer request failure appears in described carrier wave;
The subscriber equipment of the present embodiment can detect whether occur Radio Link Failure on a carrier wave, and above-mentioned all unit all can only be realized at the MAC layer, need not cross-layer and detect, and realize simple; Certainly, subscriber equipment also can utilize the MAC layer and jointly complete detection with rrc layer, and unit 91, number of times statistic unit 92 and failed judging unit 93 are initiated in timing this moment can all be positioned at rrc layer, perhaps can have the part unit to be positioned at rrc layer in these 3 unit.When described 3 unit all were positioned at rrc layer, unit 91 is initiated in described timing can receive the mixed automatic retransfer request failure message that the MAC layer reports, with triggering timing.Further, described subscriber equipment also can comprise: timing stops the unit, be used for before timing arrives, if occur mixed automatic retransfer request success on described carrier wave or enter discontinuous receiving state on described carrier wave, notify timing to initiate unit 91 and stop timing.In the present embodiment, timing initiation unit 91, number of times statistic unit 92 and failed judging unit 93 can be positioned at the described carrier wave failure of embodiment six determining unit 61, realize the detection to the carrier wave wireless link failure.Further, described subscriber equipment also can comprise: the carrier wave updating unit, be used for after failed judging unit 93 is determined described carrier wave generation Radio Link Failure, whether the carrier wave that Radio Link Failure occurs in judgement is main carrier, if so, other carrier wave that Radio Link Failure do not occur is changed to main carrier.
As described in embodiment one, when the residential quarter that service is provided for subscriber equipment has when a plurality of, these residential quarters can consist of the cooperation transmission cell set of described subscriber equipment.The schematic diagram of the method for a kind of residential quarter of determining to occur Radio Link Failure that Figure 10 provides for the embodiment of the present invention ten, the method can be based on following application scenarios: the cooperation transmission cell set that is comprised of a plurality of residential quarters provides service for subscriber equipment, and Radio Link Failure appears in one or more residential quarters in the cooperation transmission cell set, and the current area that Radio Link Failure appears in the subscriber equipment how to confirm is which or which residential quarter.Described method comprises:
S101: after Radio Link Failure appears in definite current area, if current area is transparent to subscriber equipment, send the radio link failure information of described current area to the base station;
S102: receive the feedback information of base station, the current area of determining to occur Radio Link Failure by the described feedback information of base station is which or which residential quarter in the cooperation transmission cell set.
in the present embodiment, subscriber equipment can judge that Radio Link Failure appears in its current area by the described method of embodiment one, but be transparent due to current area to subscriber equipment, the current area that subscriber equipment does not know to occur Radio Link Failure is which or which residential quarter in the cooperation transmission cell set, this moment, subscriber equipment can send information to the base station, the current area that Radio Link Failure occurs by base station judgement is which or which residential quarter in the cooperation transmission cell set, and notify described subscriber equipment with judged result, make it possible to learn which the current area that Radio Link Failure occurs is.The described base station of the present embodiment is that the base station of service is provided for subscriber equipment in the cooperation transmission cell set, can be the base station that the current area of Radio Link Failure occurs.For example, when there being 2 residential quarters to provide service for subscriber equipment, and 2 residential quarters use a base station, even if Radio Link Failure appears in one of them residential quarter, subscriber equipment can utilize the resource of another residential quarter to notify described base station with described failure result.
If the cooperation transmission cell set of subscriber equipment is nontransparent to subscriber equipment, subscriber equipment can recognize that the current area that Radio Link Failure has occured is which or which residential quarter in the cooperation transmission cell set.
The schematic diagram of a kind of subscriber equipment 110 that Figure 11 provides for the embodiment of the present invention 11, described subscriber equipment 110 comprises:
Be appreciated that, unit in above-mentioned each subscriber equipment embodiment can interosculate and realize that the carrier wave wireless link failure detects, cell radio link failure detects, cell radio link failure is processed and a series of complete functions such as service cell change, and the present embodiment repeats no more this.Every those skilled in the art can summarize the technical scheme that obtains from the method and apparatus of the embodiment of the present invention all should be considered to be the part of the embodiment of the present invention.
One of ordinary skill in the art will appreciate that all or part of flow process in said method embodiment, can come the instruction related hardware to complete by computer program, described program can be stored in a computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above is only the preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; above-described embodiment can also be made some improvement and modification, and these improve and modification also should be considered as protection scope of the present invention.
Claims (8)
1. a method for processing cell radio link failure, is characterized in that, comprising:
Determine that Radio Link Failure appears in current area, check whether exist other residential quarter to provide service for subscriber equipment, described definite current area Radio Link Failure occurs and comprises:
Radio Link Failure appears in the current component carrier of determining described subscriber equipment;
Whether check in current area exists other that component carrier of service is provided for described subscriber equipment;
When not existing other to provide the component carrier of service for described subscriber equipment in described current area, judge that Radio Link Failure appears in described current area;
When existing at least one other residential quarter to provide service and described current area to be the Serving cell of subscriber equipment for subscriber equipment, indication one other cell change is the Serving cell of described subscriber equipment.
2. method according to claim 1, is characterized in that, also comprises:
When existing at least one other residential quarter to provide service and described current area to be the assisted cell of subscriber equipment for subscriber equipment, Radio Link Failure appears in the described current area of the Serving cell of notifying user equipment.
3. method according to claim 1, is characterized in that, described definite current area also comprises after Radio Link Failure occurring:
If described current area is transparent to described subscriber equipment, send the radio link failure information of described current area to the base station of subscriber equipment;
Receive the feedback information of described base station, the current area that Radio Link Failure determine to occur by described feedback information is which or which residential quarter in the cooperation transmission cell set of subscriber equipment.
4. the described method of any one according to claim 1-3, is characterized in that, the Serving cell that other cell change of described indication is described subscriber equipment comprises:
With other residential quarter as target serving district;
Base station to subscriber equipment sends the ascending resource allocation request message;
Message is set up in the connection that receives the transmission of described base station, connects with described target serving district.
5. a subscriber equipment, is characterized in that, comprising:
Failure determining unit in residential quarter is used for determining that Radio Link Failure appears in current area, and checks whether exist other residential quarter to provide service for described subscriber equipment, and described residential quarter failure determining unit comprises:
Carrier wave failure determining unit is used for determining that Radio Link Failure appears in the current component carrier of subscriber equipment;
The subscriber equipment inspection unit is used for obtaining definite result of described carrier wave failure determining unit, and checks in current area whether exist other that component carrier of service is provided for described subscriber equipment;
Failure judging unit in residential quarter is used for when being no, judging that Radio Link Failure appears in described current area when the check result of described subscriber equipment inspection unit;
The cell change indicating member, be used for obtaining the check result of described residential quarter failure determining unit, when existing at least one other residential quarter to provide service and described current area to be the Serving cell of described subscriber equipment for described subscriber equipment, indicate the Serving cell that other cell change is described subscriber equipment.
6. subscriber equipment according to claim 5, is characterized in that, also comprises:
Failure notification unit, residential quarter, be used for obtaining the check result of described residential quarter failure determining unit, when existing at least one other residential quarter to provide service and described current area to be the assisted cell of described subscriber equipment for described subscriber equipment, notify the described current area of Serving cell of described subscriber equipment Radio Link Failure to occur.
7. subscriber equipment according to claim 5, is characterized in that, also comprises:
Information transmitting unit is used for if described current area is transparent to described subscriber equipment, sending the radio link failure information of described current area to the base station after described residential quarter failure determining unit determines that Radio Link Failure appears in described current area;
Information receiving unit is used for receiving the feedback information of described base station, and the current area of determining to occur Radio Link Failure by the feedback information of described base station is which or which residential quarter in the cooperation transmission cell set.
8. the described subscriber equipment of any one according to claim 5-7, is characterized in that, described cell change indicating member comprises:
The Target cell determining unit is used for other residential quarter as target serving district;
Distribute request unit, be used for sending to the base station ascending resource allocation request message;
Connect and set up the unit, set up message for the connection that receives the transmission of described base station, connect with described target serving district.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2009/074054 WO2011032319A1 (en) | 2009-09-21 | 2009-09-21 | Method for processing cell radio link failure and user equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102265669A CN102265669A (en) | 2011-11-30 |
| CN102265669B true CN102265669B (en) | 2013-11-06 |
Family
ID=43758022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980146459.XA Expired - Fee Related CN102265669B (en) | 2009-09-21 | 2009-09-21 | Method for processing cell radio link failure and user equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102265669B (en) |
| WO (1) | WO2011032319A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103716790A (en) * | 2012-10-09 | 2014-04-09 | 中兴通讯股份有限公司 | D2D communication processing method, D2D communication method and D2D communication processing apparatus |
| CN104219787A (en) * | 2014-09-10 | 2014-12-17 | 电信科学技术研究院 | Wireless link recovery method and device |
| CN105704739A (en) * | 2014-11-26 | 2016-06-22 | 深圳市中兴微电子技术有限公司 | User plane reinitializing method and device |
| CN113329522B (en) * | 2021-05-31 | 2022-12-30 | Oppo广东移动通信有限公司 | Method for acquiring timer parameter, terminal device and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132611A (en) * | 2006-08-24 | 2008-02-27 | 华为技术有限公司 | Method and terminal for controlling connection reconstruction in long-term evolution system |
| CN101483927A (en) * | 2008-01-08 | 2009-07-15 | 华为技术有限公司 | Method and apparatus for detecting wireless link failure, and reducing failure loss of wireless link |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101919284B (en) * | 2008-01-18 | 2015-04-01 | 爱立信电话股份有限公司 | Method and apparatus for radio link failure recovery in a telecommunication system |
-
2009
- 2009-09-21 WO PCT/CN2009/074054 patent/WO2011032319A1/en active Application Filing
- 2009-09-21 CN CN200980146459.XA patent/CN102265669B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101132611A (en) * | 2006-08-24 | 2008-02-27 | 华为技术有限公司 | Method and terminal for controlling connection reconstruction in long-term evolution system |
| CN101483927A (en) * | 2008-01-08 | 2009-07-15 | 华为技术有限公司 | Method and apparatus for detecting wireless link failure, and reducing failure loss of wireless link |
Non-Patent Citations (1)
| Title |
|---|
| 说明书第7页第22-28行. |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011032319A1 (en) | 2011-03-24 |
| CN102265669A (en) | 2011-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102036284B (en) | Method and device for processing radio link failure under carrier aggregation scene | |
| US10645618B2 (en) | Link failure recovery method and apparatus | |
| CN102870450B (en) | Radio link monitoring and radio link fail processing method and subscriber equipment | |
| CN101483927B (en) | Method and apparatus for detecting wireless link failure | |
| US10659211B2 (en) | Method and apparatus for setting radio link of terminal in which multiple carriers are integrated in mobile communication system | |
| CN102986273B (en) | Switching method based on carrier aggregation | |
| CN101796864B (en) | A method of monitoring cells in wireless communication systems | |
| CN101978641B (en) | Method and apparatus to report and manage cells in multi carrier system | |
| CN101755408B (en) | Method, system and apparatus achieving inter-system communications | |
| CN103581918B (en) | component carrier configuration method, base station and user equipment | |
| CN102651918A (en) | Method and equipment for establishing connection between terminal and network | |
| CN105490789A (en) | Data transmission method and device | |
| CN102291770A (en) | Method and device for optimizing user plane operation in communication system based on carrier aggregation | |
| CN104010368A (en) | TDD configuration update method, apparatus and system | |
| CN102104892A (en) | Method for detecting radio link failure | |
| CN101686489A (en) | Method of improving uplink signaling transmission for a user equipment of a wireless communication system | |
| CN103796320A (en) | Schedule requesting method and device | |
| CN102932950A (en) | Method and equipment for random access to secondary cell (SCell) | |
| CN103260246B (en) | A kind of carrier scheduling method and equipment | |
| CN102111895A (en) | Random access preamble transmission method in multi-carrier system and base station | |
| CN102291688A (en) | Switching method and equipment based on MBMS (multimedia broadcast multicast service) | |
| CN102118236B (en) | Feedback method and feedback device based on competitive resource | |
| CN102265669B (en) | Method for processing cell radio link failure and user equipment | |
| WO2020220774A1 (en) | Beam failure indication and recovery method and device based on data scheduling | |
| CN102714807B (en) | Based on the method and apparatus detecting random access failure in carrier aggregation communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20160921 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |