CN100463564C - Switching back method after failure of relay switching - Google Patents
Switching back method after failure of relay switching Download PDFInfo
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- CN100463564C CN100463564C CNB2005101025632A CN200510102563A CN100463564C CN 100463564 C CN100463564 C CN 100463564C CN B2005101025632 A CNB2005101025632 A CN B2005101025632A CN 200510102563 A CN200510102563 A CN 200510102563A CN 100463564 C CN100463564 C CN 100463564C
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Abstract
A method for carrying out back-switch after relay switching over is failure includes activating up link and down link of assigned physical layer simultaneously and immediately when physical layer being not synchronized with object cell in specified time is detected out by user device, obtaining user date sent by original cell base station and carrying out synchronization with said base station by physical layer as well as transmitting user data to high level layer of user device by physical layer simultaneously for holding communication with original cell base station.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to a kind of baton handover failure back and return the method for cutting.
Background technology
Because mobile communication system adopts honeycomb, so UE (subscriber equipment) is when crossing over the sub-district of spatial division, must carry out handover, promptly finish the transfer of UE, and the corresponding transfer of switching center is arrived in the base station to web portal and web portal to the air interface of base station.In TD-SCDMA (time slot-S-CDMA) system, adopt the baton handover technology to realize handover.Its design philosophy is to utilize technology such as smart antenna and uplink synchronous, on the basis that the distance and bearing to travelling carriage positions, judge as supplementary whether present travelling carriage has moved to the close region of the adjacent Node B (base station) that can switch according to travelling carriage azimuth-range information.If travelling carriage enters the switch area, then RNC (radio network controller) notifies this Node B to carry out the preparation of switching, thereby reaches fast, the reliably and efficiently purpose of switching.
Baton handover can reach and reduce switching time, improves handover success rate, reduces the purpose of switching cutting off rate, and the frequency that no matter switches is with frequently or alien frequencies, can realize baton handover.Baton handover can be applicable to real time business and non-real-time data business between Node B, carry out between RNC.
The realization of baton handover mainly contains three processes, i.e. handover measurement, switch decision and hand-off execution process.
In UE and Node B communication process, UE need measure the pilot signal strength of this sub-district and neighbor cell, also will measure, calculate and keep parameter lock in time of the neighbor cell that meets switching condition simultaneously.After RNC receives the measurement report of UE, carry out switch decision, if judgement should be switched, then RNC determines the Target cell of switching according to UE to the measurement result of candidate cell, and carries out admission control algorithm, sets up Radio Link at Target cell, after RNC receives that the Radio Link foundation of Target cell is finished, to send the business datum carrying simultaneously to former sub-district and Target cell, send switching command (channel is reshuffled) by former sub-district to UE, the beginning handoff procedure.UE receives the switching command of network side, carries out baton handover, and the UE side is set up the RL success and obtained at Target cell and returns the network side handoff completion message synchronously.Network side returns RLC confirm (Radio Link control is confirmed) message after receiving handoff completion message.So far baton handover process finishes.
Network side carries out baton handover by radio bearer control indication UE, and UE may cause the baton handover failure owing to successfully not disposing target cell code road, gap information or failing and Target cell obtains synchronously when carrying out baton handover.After the baton handover failure UE is returned and switch to original state, set up synchronously with former sub-district.But do not point out in the existing protocol how baton handover failure back UE side is carried out effective and reasonable returning and cut processing, in the prior art this is not had effective solution yet.
In addition, according to existing protocol, UE is after detecting radio link failure under CELL_DCH (cell private channel) state, and UE RRC (Radio Resource control) will start timer T313, if T313 is overtime, UE will initiate the cell update message of " Radio Link Failure ".If in the baton handover process, UE detects Radio Link Failure, will cause a kind of erroneous judgement of RRC, make RRC produce malfunction.
Summary of the invention
The purpose of this invention is to provide a kind of baton handover failure back and return the method for cutting, cut processing after carrying out the baton handover failure, set up synchronously with former cell base station again, guarantee the proper communication of UE so that UE can return effective and reasonablely.
For this reason, the invention provides following technical scheme:
The method of cutting is returned in a kind of baton handover failure back, may further comprise the steps:
A,, subscriber equipment in official hour, do not obtain to specify physical layer to activate the up link and the down link of former sub-district immediately simultaneously when synchronous with Target cell when detecting physical layer;
B, physical layer are obtained the user data that former cell base station sends, and utilize itself and former cell base station to carry out synchronously;
C, physical layer send described user data the high level of subscriber equipment to, recover and the communicating by letter of former cell base station.
Described steps A comprises:
A1, subscriber equipment detect physical layer and do not obtain to send radio link reconfiguration request message by radio resource control RRC course physical layer when synchronous with Target cell in official hour;
After A2, physical layer were received described radio link reconfiguration request message, the parameter of the former sub-district of configures physical layer activated up link and down link simultaneously;
A3, physical layer send radio link reconfiguration to rrc layer and finish message.
The parameter of the former sub-district of described physical layer comprises: frequency, cell parameter sign, frame shifting amount.
Utilizing user data and former cell base station to carry out synchronous process among the described step B comprises:
B1, in handoff procedure the synchronism deviation parameter of subscriber equipment record and adjacent cell base station;
B2, according to launch time of described synchronism deviation parameter adjustment uplink pilot signal;
B3, physical layer detect described user data, when detect with former cell base station synchronously after, send synchronous Indication message to rrc layer.
Described steps A 3 also comprises:
Rrc layer starts a timer after receiving that the radio link reconfiguration of physical layer transmission is finished message;
Behind the synchronous Indication message of receiving physical layer in the timing at described timer, stop described timer;
Behind timer expiry, subscriber equipment carries out whole channel primary searching, initiates the cell update message of Radio Link Failure then.
Described method further comprises:
Receive the synchronous Indication message of physical layer transmission when rrc layer after, the measuring control information of preserving is reconfigured to physical layer, and proceed required measurement, the measuring control information of described preservation is that subscriber equipment is received the current measuring control information of preserving behind the baton handover request message of former cell base station transmission;
Described measuring control information comprises:
Measure at least one in sign, measuring command, measurement type, measuring object, measuring amount, report amount, measurement report criterion, the measurement report pattern.
Described required measurement is specially:
Measure and/or inter-frequency measurements and/or system's measurements and/or measuring business volume and/or mass measurement and/or internal measurement in the frequency.
By above technical scheme provided by the invention as can be seen, the present invention detects physical layer at UE RRC and does not obtain with Target cell UE is returned effectively switch to original state when synchronous in official hour, rebulids synchronously with former sub-district.Carry out back and cut when operation, specify physical layer to activate immediately, and be that uplink downlink activates simultaneously, the process of cutting of returning after the baton handover failure is carried out as early as possible, saved the speed of time cutting.RRC is when carrying out baton handover, and the radio link failure message that physical layer is reported does not process, thereby has avoided RRC to think radio link failure and initiate unnecessary cell update, causes switching flow normally to carry out.RRC preserves the current measurement control messages of UE after switching message receiving, is cut into merit if switch failure and UE return, and then RRC will measure control messages once more and send to physical layer, thereby has guaranteed that UE returns when being cut into merit physical layer and still can proceed measurement.Utilize the present invention, guaranteed not only that UE can fast and effeciently return to cut after baton handover failure, keep signaling and professional being connected, continue to switch preceding measurement, carry out normal measurement report with former sub-district; And avoided in the baton handover process because the RRC misoperation that the radio link failure message that former sub-district may report causes.
Description of drawings
Fig. 1 is the baton handover process schematic diagram of UE;
Fig. 2 is the realization flow figure of the inventive method;
Fig. 3 is back the message flow chart between the UE different layers in the process of cutting;
Fig. 4 is back the message flow chart between the UE and base station and RNC in the process of cutting.
Embodiment
Core of the present invention is UE in the process of carrying out baton handover, does not obtain synchronously in official hour if UE RRC detects physical layer, then carries out back and cuts operation, specifies physical layer to activate immediately, and is that uplink downlink activates simultaneously.For make back cut back UE can rebulid with former sub-district synchronously and the various measurements before proceeding to switch, UE writes down the synchronism deviation parameter of UE and each adjacent sub-district and the measurement control messages of network side configuration always in handoff procedure, when the UE handoff failure, return when cutting configuration, RRC just can dispose the synchronism deviation parameter negate of record to physical layer, RRC (Radio Resource control) waits for back the synchronous Indication message of cutting then, after if RRC receives that physical layer is returned the synchronization message of cutting, show that then UE and former cell base station have rebulid synchronously, reconfigure the measuring control information of preserving to physical layer this moment, makes the various measurements before UE proceeds to switch and measure normally to report.
Further, for fear of reporting radio link failure message to cause the misoperation of RRC owing to former sub-district, the radio link failure message that RRC reports physical layer in handoff procedure does not process.
The present technique field personnel know, open loop presynchronization technology is used in baton handover, and in handoff procedure, UE sends upstream data from former sub-district downlink data receiving to Target cell, and promptly the uplink and downlink communication link is successively transferred to Target cell, improves success rate for switching; The high advantage of its existing general CDMA (code division multiple access) system's handover success rate does not need again to take too much resource, thereby makes power system capacity be significantly improved.
In order to understand the present invention better, Fig. 1 shows the baton handover process of UE:
The 1st step: UE and Node B1 carry out proper communication;
The 2nd step: when UE need switch and network side when switching target small area Node B2 has been found in measurement to the UE candidate cell, network side sends switching command to UE, UE utilizes upstream data to carry out uplink synchronous with Target cell Node B2 immediately, target BS is that down beam shaping is ready according to the upstream data that obtains, and UE still receives the downlink data that Node B1 sends simultaneously;
The 3rd step: after down link activationary time point arrives by the time, physical layer will be deleted with the Radio Link of Node B1 and will be connected, UE physical layer and Node B2 carry out the detection of down-going synchronous, RRC starts synchro timer simultaneously, by the time synchro timer overtime before, if UE and target BS synchronously on, show that UE has set up down-going synchronous with Node B2.This moment, Node B1 still constantly sent business datum to UE;
The 4th step:, UE sends handover success message to network side, and network side is deleted the Radio Link of NodeB1 about this UE after receiving this message.
At this moment UE is connected with signaling all with business between the Node B1 and disconnects, and only keeps being connected of signaling and business with Node B2, and switching is finished.
By said process as seen, in the baton handover process, up link comes into force at different time points with downlink physical channel, and the activationary time point of down link will fall behind the time (generally being 8 radio frames) that the activationary time of up link is put several radio frames usually.Before down link activationary time point arrives, UE will (may reside in the dominant frequency point of former sub-district in former sub-district, also may reside in the auxiliary frequency of former sub-district) business datum of receiving downlink, send the business datum of up link at Target cell (may switch to the dominant frequency point of Target cell, also may switch to the auxiliary frequency of Target cell).After the activationary time point of down link arrived, down link switched to Target cell immediately, and the physical layer of UE will be carried out the synchronous detecting of Target cell down link, and RRC (Radio Resource control) starts synchro timer simultaneously.If RRC detects physical layer and do not obtain synchronously in official hour, RRC will carry out back and cut operation.
In handoff procedure, network side keeps the Radio Link of former sub-district always, and send this user's data, therefore when detecting physical layer, UE RRC in official hour, do not obtain when synchronous, can specify physical layer to activate immediately, physical layer is carried out synchronously according to the user data that former cell base station sends on the one hand, sends these user data to high level on the one hand, has guaranteed time to cut the data that UE can not lose high level in the process.
Below in conjunction with drawings and embodiments the inventive method is elaborated.
With reference to Fig. 2, Fig. 2 shows the realization flow of the inventive method, may further comprise the steps:
Step 201: do not obtain when synchronous in official hour when UE detects physical layer, carry and decide physical layer and activate immediately, and be to activate up link and down link simultaneously with Target cell.
Because when UE carried out baton handover, after the activationary time point of down link arrived, physical layer was carried out the sync check of the down link of Target cell, RRC starts synchro timer simultaneously.At this moment, network side still keeps the Radio Link of former sub-district, and sends user data to this UE always.Therefore, if RRC detects physical layer not obtaining synchronously with Target cell of stipulating, can indicate physical layer to activate the up link and the down link of former sub-district immediately simultaneously, and discharge the up link of the target cell base station of having set up.After physical layer is received the radio link reconfiguration request message of RRC transmission, the parameter of the former sub-district of configures physical layer, these parameters comprise: frequency, cell parameter sign, frame shifting amount etc., activate up link and down link.
Step 202: physical layer is obtained the user data that former cell base station sends, and utilizes itself and former cell base station to carry out synchronously.
UE is after entering CELL-DCH, can measure according to the adjacent sub-district of indicating in adjacent sub-district of indicating in the network side measurement control messages or the system broadcast message, and test report reported network side, and determine best switching target small area, guarantee normally carrying out of conversation.
UE is by the time difference of the down-bound pilot frequency signal of measurement target sub-district and this sub-district, can calculate and the synchronism deviation of record object sub-district and this sub-district, and it is designated as parametric t _ frame_offset.In the baton handover process, UE can make UE and Target cell carry out open loop presynchronization according to the launch time of the uplink pilot signal of this parameter adjustment Target cell.
Equally, cut in the process at of the present invention time, need utilize this parameter make UE rebulid with former sub-district synchronously.Because when beginning to switch, physical layer according to the synchronism deviation parameter adjustment launch time of uplink pilot signal, so return when cutting, need will adjust back the launch time of uplink pilot signal according to this synchronism deviation parameter launch time of former sub-district, can make UE and former sub-district synchronous again.
In order to guarantee effectively in the time UE and former cell base station to be set up synchronously, can after receiving that the radio link reconfiguration of physical layer transmission is finished message, rrc layer start a timer; If in the timing of timer, receive the synchronous Indication message of physical layer, then stop this timer timing; If timer expiry then returns and cuts failure.
The front is mentioned, have a kind of situation may cause the erroneous judgement of RRC in the baton handover process: it is current all the cell signal poor qualities of UE that network side starts a kind of reason of switching, need switch to a sub-district that signal quality is good, so rrc layer is after receiving the switching message of network side, if the signal quality deteriorates of current area arrives to a certain degree, physical layer detects former sub-district step-out, then can report radio link failure message to give RRC.Rrc layer starts timer T313 after receiving the radio link failure message of physical layer, meanwhile, physical layer is activated on the physical channel of new configuration, and rrc layer will be received the affirmation message that physical layer activates, according to normal flow, rrc layer will wait for that physical layer reports the synchronization message of Target cell.After obtaining synchronously with Target cell, rrc layer will return network side handover success message.
In above-mentioned a series of processing procedure, timer T313 at any time might be overtime, and it is overtime that rrc layer detects timer T313, then can initiate the cell update of Radio Link Failure.The cell update that initiate Radio Link Failure this moment is a kind of erroneous judgement of RRC.Because this moment, the Radio Link of Target cell was not also set up, the Radio Link of waiting until new sub-district is after physical layer is activated, and physical layer also can only report synchronization message, can not report step-out message.This step-out message can only report former sub-district.Because it is to send on the physical channel of former sub-district that step-out message is received in the front, these physical channels are to need deletion at once, and this moment, the code channel of Target cell was about to be activated, and the step-out message RRC that reports for former sub-district should ignore.
Therefore, the present invention is for fear of the misoperation of RRC, and when carrying out baton handover, if physical layer reports step-out message, RRC will not process.
Step 203: physical layer sends the user data of receiving the high level of UE to, recovers and the communicating by letter of former cell base station.
Like this, guaranteed time to cut that UE can not lose high-rise data in the process.
UE also will carry out various relevant measurements according to the measurement control messages that network side sends in carrying out communication process.Measure control messages and may comprise following measuring control information:
(1) measures sign:, be used to refer to the sign of this measurement when release or modification measurement when UTRAN will set up.UE also will use this sign in measurement report;
(2) measuring command: set up: set up a new measurement; Revise: the measurement of definition before revising, as measuring criterion; Discharge: stop a measurement, and remove all information relevant in the UE with this measurement;
(3) measure type: frequently, frequently in, traffic carrying capacity, quality, UE inside, RAT, position measurement;
(4) object and related objective information that measuring object: UE measures;
(5) quantity that measuring amount: UE should measure.It also comprises the screening to measuring;
(6) report amount: except that to the enforceable measurement of particular event, other measuring amount that UE should comprise in measurement report;
(7) measurement report criterion: the trigger event of measurement report, as the report of periodicity or Event triggered;
(8) measure validity: it is effective to have defined UE this measurement under which state;
(9) measurement report pattern: point out that it is that UM RLC sends measurement report that UE uses AM RLC;
(10) the additional measurement tabulated: the reference listing of other measurements.
When carrying out baton handover, when network side indication UE switched, UE promptly stopped the measurement of current area.If the UE handoff failure then returns switch failure information to network side on former sub-district.After network side is received switch failure information, think that UE does not change the sub-district, network side just might no longer send the measurement control messages, and physical layer also will stop the measurement to former sub-district always.
For fear of above-mentioned situation, when the present invention receives the baton handover request message of network side at UE, preserve the measuring control information of current area, by the time after rrc layer is received the synchronous Indication message of physical layer transmission, the measuring control information of preserving is reconfigured to physical layer, after physical layer is received this information, can proceed to switch preceding measurement according to this information, and measurement result reported the UE rrc layer, rrc layer is measured normally and is reported.
Such as, can carry out measurement in the frequency, inter-frequency measurements, system's measurements, measuring business volume, mass measurement, internal measurement etc., wherein, measuring in the frequency is the down physical channel of measurement and Active Set same frequency; Inter-frequency measurements is the down physical channel of measurement and Active Set different frequency; System's measurements is to measure the descending access channel that belongs to other wireless access systems; Measuring business volume is to measure upstream traffic; Mass measurement is to measure mass parameter; Internal measurement is to measure the transmitting power of UE and the signal level that UE receives.
Fig. 3 shows to return in the inventive method and cuts the message flow between the UE different layers in the process:
In order clearly to describe the reason that takes place back to cut, also show the message interaction process of each interlayer in the baton handover process in the figure.
1.RRC under CELL_DCH (cell private channel) state, in the process that UE and this cell base station communicate, pilot signal strength to this sub-district and neighbor cell is measured, and measurement result is reported RNC, simultaneously parameter lock in time of neighbor cell is measured, is calculated and keeps.After RNC receives the measurement report of UE, if meet switching condition, issue switching command (physical channel is reshuffled Indication message), the physical layer of UE sends to the MAC layer with the switching command that receives;
2.MAC layer is reshuffled Indication message with the physical channel of receiving and is sent rrc layer to;
3.RRC judging, layer switches type of message;
4.RRC layer is according to switching type of message, if baton handover then sends radio link reconfiguration request message to physical layer, the indication physical layer is carried out baton handover;
5. after physical layer is received the baton handover request message of RRC transmission, at first activate up link, activate down link then.The specific implementation process has a detailed description in front, does not repeat them here;
6. physical layer sends radio link reconfiguration to rrc layer and finishes message;
7.RRC after receiving above-mentioned message, start timer T313, pick up counting, wait for physical layer and the foundation of new sub-district synchronously;
8. after timer T313 was overtime, promptly UE did not set up synchronously with new sub-district in official hour, and RRC prepares back to cut;
9.RRC send radio link reconfiguration request message to physical layer, require the Radio Link of physical layer release new sub-district, rebulid the Radio Link of former sub-district;
10. after physical layer is received the radio link reconfiguration request message that RRC sends, judge reshuffling of being back to cut, then activate former up link and down link simultaneously;
Finish message 11. then, send radio link reconfiguration to RRC;
12.RRC after receiving above-mentioned message, start timer T313, wait for that physical layer and former cell recovery are synchronous;
13. physical layer receives the user data that former base station sends, and after rebuliding synchronously according to these user data and former base station, to RRC transmission synchronization message;
14.RRC after receiving synchronization message, stop timer T313;
If timer expiry shows back and cut failure that promptly former sub-district and Target cell are all unavailable, UE will carry out whole channel primary searching, initiate the cell update message of " Radio Link Failure " then.
If 15～18. have set up synchronously with former sub-district, show back and be cut into merit, then by the Radio Link notice RNC handoff failure (physical channel reconfiguration failure message) of former base station, RNC receives this message, though show handoff failure, it is successful time cutting.RNC responds physical channel reconfiguration failure acknowledge message to RRC.
Cut in the process returning, the message interaction process between UE and base station and the RNC as shown in Figure 4:
In order clearly to describe back the mutual of message in the process of cutting, also show the message interaction process between the UE and base station and RNC in the baton handover process in the figure.
1.RNC send the measurement control messages to UE, require UE to measure the pilot signal strength of adjacent sub-district;
2.UE the indication according to RNC is measured adjacent sub-district, and sends measurement report to RNC;
3.RNC trigger baton handover according to measurement report;
4.UE obtain the descending pilot frequency information of target BS, and, keep open loop presynchronization with Target cell according to deviation lock in time of this descending pilot frequency information calculations and record object sub-district and this sub-district;
Set up request message 5.RNC send Radio Link to the NBAP of target BS (Node B applying portion);
6. target BS is responded Radio Link to RNC and is set up response message;
7. set up being connected of AAL2 (asynchronous transfer mode adaptation layer 2) between the ALCAP of ALCAP of target BS (Access Link Control Application Protocol) and RNC;
8. the DCH-FP of DCH-FP of target BS (dedicated channel Frame Protocol) and RNC sets up the synchronous of up link and down link;
9.RNC send the physical channel reconfiguration request message to UE;
10.UE receive the downstream data traffic that former base station sends;
11.UE send upstream data service to target BS;
12. after arriving the activationary time point of down link, the downstream data traffic that UE receiving target base station sends;
13.UE detect set up synchronization failure with Target cell after, start up link and down link simultaneously, receive the downstream data traffic that former base station sends;
14. send upstream data service to former base station simultaneously;
15. after acquisition and former sub-district are synchronous, show back and be cut into merit that UE sends physical channel reconfiguration failure message to RNC;
16.RNC send the Radio Link deletion request message to target BS after receiving above-mentioned message;
17. target BS is responded Radio Link deletion response message to RNC;
18. release the connection of chairman AAL2 between the ALCAP of target BS ALCAP and RNC.
The foregoing description has only been described UE returning behind handoff failure between different base station and has been cut process, utilizes this principle, can realize that equally UE returns the process of cutting behind handoff failure between RNC.Implementation method is similar to the above, does not repeat them here.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (8)
1, return the method for cutting after a kind of baton handover failure, it is characterized in that, may further comprise the steps:
A,, subscriber equipment in official hour, do not obtain to specify physical layer to activate the up link and the down link of former sub-district immediately simultaneously when synchronous with Target cell when detecting physical layer;
B, physical layer are obtained the user data that former cell base station sends, and utilize itself and former cell base station to carry out synchronously;
C, physical layer send described user data the high level of subscriber equipment to, recover and the communicating by letter of former cell base station.
2, method according to claim 1 is characterized in that, described steps A comprises:
A1, subscriber equipment detect physical layer and do not obtain to send radio link reconfiguration request message by radio resource control RRC course physical layer when synchronous with Target cell in official hour;
After A2, physical layer were received described radio link reconfiguration request message, the parameter of the former sub-district of configures physical layer activated up link and down link simultaneously;
A3, physical layer send radio link reconfiguration to rrc layer and finish message.
3, method according to claim 2 is characterized in that, the parameter of the former sub-district of described physical layer comprises: frequency, cell parameter sign, frame shifting amount.
4, method according to claim 2 is characterized in that, utilizes user data and former cell base station to carry out synchronous process among the described step B and comprises:
B1, in handoff procedure the synchronism deviation parameter of subscriber equipment record and adjacent cell base station;
B2, according to launch time of described synchronism deviation parameter adjustment uplink pilot signal;
B3, physical layer detect described user data, when detect with former cell base station synchronously after, send synchronous Indication message to rrc layer.
5, method according to claim 4 is characterized in that, described steps A 3 also comprises:
Rrc layer starts a timer after receiving that the radio link reconfiguration of physical layer transmission is finished message;
Behind the synchronous Indication message of receiving physical layer in the timing at described timer, stop described timer;
Behind timer expiry, subscriber equipment carries out whole channel primary searching, initiates the cell update message of Radio Link Failure then.
6, method according to claim 4 is characterized in that, described step B3 further comprises:
Receive the synchronous Indication message of physical layer transmission when rrc layer after, the measuring control information of preserving is reconfigured to physical layer, and proceed required measurement, the measuring control information of described preservation is that subscriber equipment is received the current measuring control information of preserving behind the baton handover request message of former cell base station transmission.
7, method according to claim 6 is characterized in that, described measuring control information comprises:
Measure at least one in sign, measuring command, measurement type, measuring object, measuring amount, report amount, measurement report criterion, the measurement report pattern.
8, method according to claim 7 is characterized in that, described required measurement is specially:
Measure and/or inter-frequency measurements and/or system's measurements and/or measuring business volume and/or mass measurement and/or internal measurement in the frequency.
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| CNB2005101025632A CN100463564C (en) | 2005-09-12 | 2005-09-12 | Switching back method after failure of relay switching |
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| CNB2005101025632A CN100463564C (en) | 2005-09-12 | 2005-09-12 | Switching back method after failure of relay switching |
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