CN102448184A

CN102448184A - Processing method and device for failure indication for wireless link

Info

Publication number: CN102448184A
Application number: CN201010502872XA
Authority: CN
Inventors: 亨里克·奥鲁佛松; 王君; 季莉; 张欢
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-10-11
Filing date: 2010-10-11
Publication date: 2012-05-09
Anticipated expiration: 2030-10-11
Also published as: WO2012048627A1; CN105228188B; CN102448184B; CN105228188A

Abstract

The embodiment of the invention provides a processing method and a device for a failure indication for a wireless link. The method comprises the following steps of: receiving the failure indication for the wireless link; confirming a sending opportunity for the failure indication for the wireless link according to a first identification carried in the failure indication for the wireless link; if the failure indication for the wireless link is sent after UE (User Equipment) carries out reconstruction for RRC (Radio Resource Control), moreover, a failure report for the wireless link is not included in the failure indication for the wireless link, confirming a failure reason for the wireless link is a problem of parameter switching, and increasing the statistical numbers of abnormal switching types confirmed according to the failure indication for the wireless link by 1. Through the method and the device provided by the embodiment of the invention, under the premise that the problem of parameter switching and a problem of loophole covering can be correctly distinguished and counted can be satisfied, and too much information storage at a base station side can be avoided, and waiting time can be reduced..

Description

The processing method and the device of Radio Link Failure indication

Technical field

The present invention relates to the communications field, relate in particular to a kind of processing method and device of Radio Link Failure indication.

Background technology

3GPP R9 (The 3rd Generation Partnership Proiect R9; Third generation partner program the 9th version) several kinds have been defined in the agreement because handoff parameter is provided with the improper mobility optimization scene that causes; Promptly switch the evening show scape, switched too early scene and switched to the wrong cell scene;, adjust with minimizing to handoff parameter when arriving or avoid these unusual handoff scenario the identification of these unusual handoff scenario statistics through periodically to the cycle of optimizing and revising.

According to R9 (Release9; The 9th version) regulation; Under above unusual handoff scenario, no matter whether success of the reconstruction of UE, RLF indication (Radio Link Failure indication all can be sent to source base station in the reconstructed object base station; The Radio Link Failure indication), possibly comprise among this RLF indication also not comprising RLF Report (Radio Link Failure report).Yet; According to R10 (Release10; The 10th version) regulation, UE does not successfully choose sub-district or reconstruction failure and gets into Idle state behind RLF, successfully set up new RRC subsequently and connected; If wherein preserve RLF Report among the UE, RRC sets up target BS can send RLF Indication to previous generation RLF sub-district according to RLF Report content.Because source base station is to add up according to the RLF Indication that receives to switch evening or covered leak; Therefore; If UE when RRC rebuilds and follow-up RRC all send this RLF Indication when setting up; Just possibly repeat statistics, not send out when perhaps RRC rebuilds and wait until and send when follow-up RRC sets up, possibly have statistics again and omit.

At present; A solution is to have refused the base station that UE RRC rebuilds for those; Needn't send RLFindication immediately, but think by the time and just send RLF indication when follow-up UE initiates can not report RLF Report when new RRC sets up to the base station of source generation RLF.Because the base station that this scheme requires refusal RRC to rebuild must be waited for, promptly timer will be set on the base station, and if the UE the base station under is a lot of and that the UE of this situation takes place is more, the timer that will safeguard of base station side can much cause the wasting of resources so.

Summary of the invention

The embodiment of the invention provides a kind of processing method and device of Radio Link Failure indication, can correctly distinguish under the prerequisite of Radio Link Failure reason satisfied, reduces the too much information stores of base station side and the wasting of resources.

On the one hand, the embodiment of the invention provides a kind of processing method of Radio Link Failure indication, and said method comprises: receive the Radio Link Failure indication; Confirm the transmission opportunity of said Radio Link Failure indication according to the sign of carrying in the said Radio Link Failure indication; If carrying out RRC at UE, said Radio Link Failure indication rebuilds the back transmission; And do not comprise the Radio Link Failure report in the said Radio Link Failure indication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

On the other hand, the embodiment of the invention provides a kind of processing unit of Radio Link Failure indication, and said device comprises: first receiving element is used to receive the Radio Link Failure indication; First confirms the unit, is used for confirming according to the sign that said Radio Link Failure indication is carried the transmission opportunity of said Radio Link Failure indication; First processing unit; Be used for carrying out RRC at UE and rebuild the back transmission in said Radio Link Failure indication; And when not comprising the Radio Link Failure report in the said Radio Link Failure indication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

Again on the one hand, the embodiment of the invention provides a kind of processing method of Radio Link Failure indication, and said method comprises: receive the base station that RLF takes place and receiving the handover report that send Radio Link Failure indication back; According to said handover report the statistics number of the unusual switching type of indicating in the handover report is added 1.

Another aspect, the embodiment of the invention provide a kind of processing unit of Radio Link Failure indication, and said device comprises: first receiving element is used to receive the base station that RLF takes place and is receiving the handover report that send Radio Link Failure indication back; First processing unit is used for the handover report that receives according to said first receiving element, and the statistics number of the unusual switching type of indicating in the handover report is added 1.

Method and apparatus through the embodiment of the invention provides can reduce the too much information stores of base station side and the wasting of resources satisfying under the prerequisite that can correctly distinguish statistics handoff parameter problem and covering leak problem.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:

Fig. 1 is the method flow diagram of one embodiment of the invention;

Fig. 2 is the method flow diagram of another embodiment of the present invention;

Fig. 3 is the method flow diagram of yet another embodiment of the invention;

Fig. 4 is the process flow figure of time within this statistics adjustment cycle that received the indication of second Radio Link Failure when switching evening in the embodiment of the invention;

Fig. 5 receives that the time that the second Radio Link Failure is indicated do not add up the process flow figure within adjustment cycle at this when switching evening in the embodiment of the invention;

Fig. 6 received the process flow figure of time within this statistics adjustment cycle that subtracts the counting indication when switching evening in the embodiment of the invention;

Fig. 7 received when switching evening in the embodiment of the invention that subtracting the time of counting indication does not add up the process flow figure outside adjustment cycle at this;

Fig. 8 is that UE did not choose suitable cell and received the process flow figure of time within this statistics adjustment cycle of Radio Link indication when switching evening in the embodiment of the invention;

Fig. 9 UE when switching evening in the embodiment of the invention does not choose suitable cell and receives that the time that Radio Link is indicated do not add up the process flow figure within adjustment cycle at this;

Figure 10 receives the process flow figure of time within this statistics adjustment cycle that subtracts the counting indication when switching is too early in the embodiment of the invention;

Figure 11 receives when switching is too early in the embodiment of the invention that subtracting the time of counting indication does not add up the process flow figure within adjustment cycle at this;

Figure 12 is the process flow figure of time within this statistics adjustment cycle that receives the Radio Link Failure indication when switching is too early in the embodiment of the invention;

Figure 13 receives the Radio Link Failure indication when too early for switching in the embodiment of the invention time is the process flow figure within this statistics adjustment cycle;

Under the too early situation of switching of Figure 14 for the failure that switches in the handoff procedure in the embodiment of the invention, receive the process flow figure of time within this statistics adjustment cycle of second Radio Link Failure indication;

Under the too early situation of switching of Figure 15 for the failure that switches in the handoff procedure in the embodiment of the invention, receive that the time of second Radio Link Failure indication is not added up the process flow figure within adjustment cycle at this;

Figure 16 adds up the process flow figure within adjustment cycle at this time that subtracts the counting indication that receives the base station transmission that RLF takes place when switching to wrong cell in the embodiment of the invention;

Figure 17 does not add up the process flow figure within adjustment cycle at this time that subtracts the counting indication that receives the base station transmission that RLF takes place when switching to wrong cell in the embodiment of the invention;

Figure 18 switches under the wrong cell situation for the failure that switches in the handoff procedure in the embodiment of the invention, receives the process flow figure of time within this statistics adjustment cycle of Radio Link Failure indication;

Figure 19 switches under the wrong cell situation for the failure that switches in the handoff procedure in the embodiment of the invention, and the time that receives the Radio Link Failure indication is not added up the process flow figure within adjustment cycle at this;

Figure 20 is the device composition frame chart of one embodiment of the invention;

Figure 21 is the device composition frame chart of another embodiment of the present invention.

Embodiment

For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer,, the embodiment of the invention is explained further details below in conjunction with embodiment and accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.

A kind of Radio Link Failure that Fig. 1 provides for the embodiment of the invention is indicated the flow chart of the processing method of (RLF indication); This method can be applied to receive the base station of RLF indication; The base station of RLF for example takes place; Perhaps RRC reconstructed object base station, please with reference to Fig. 1, this method comprises:

Step 101: receive RLF indication;

Wherein, after initiation RRC rebuild and refused after RLF takes place UE, the base station of refusing this RRC connection reconstruction was called RRC reconstructed object base station in the present embodiment and sends the RLF indication that does not carry RLF report can for the base station that RLF takes place.Then; After this UE selects new sub-district to carry out new RRC connection foundation and success; UE can set up in new RRC connection and carry RLF report in the process; This new RRC connects the successful base station of foundation, is called RRC in the present embodiment and sets up target BS, sends the RLFindication that carries this RLF report can for base station or RRC reconstructed object base station that RLF takes place.

Wherein, according to the different anomalies switching type, the base station that this RRC sets up target BS and RRC reconstructed object base station or RLF takes place possibly be same base station, also maybe be different, below will explain through various embodiment respectively.

Step 102: the transmission opportunity of confirming said RLF indication according to first sign of carrying among the said RLF indication;

In the present embodiment, the transmission of this RLF indication can be carried out sending after RRC rebuilds opportunity at UE, also can be to carry out sending after new RRC sets up at UE, and according to the transmission difference on opportunity, present embodiment has different processing methods.

In the present embodiment, distinguish this RLF indication and carry out RRC at UE and rebuild the back and send, still carry out new RRC and set up that the back sends at UE through in RLF indication, carrying sign.Therefore, can confirm the transmission opportunity of this RLF indication according to this sign.

Step 103: rebuild the back transmission if said RLF indication carries out RRC at UE; And do not comprise Radio Link Failure report (RLF report) among the said RLFindication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said RLF indication.

In the present embodiment; When RLF indication is when UE carries out sending after RRC rebuilds; Do not comprise RLF report among this RLF indication, therefore, present embodiment can not be confirmed the Radio Link Failure reason according to RLF report; So be defaulted as the handoff parameter problem, and will add 1 according to the statistics number of the definite unusual switching type of RLF indication.

In the present embodiment, unusual switching type can be confirmed according to RLF indication, specifically can realize through the means of prior art, repeats no more at this.

In the present embodiment; Difference according to unusual switching type; The problem base station that causes Radio Link Failure possibly not be the base station that RLF takes place, and therefore, will add 1 according to the statistics number of the definite unusual switching type of said RLF indication; Also can indicate this problem base station to add 1 through send the mode of handover report to the problem base station that causes Radio Link Failure according to the statistics number of the definite unusual switching type of said RLFindication.In the present embodiment, cause the problem base station of Radio Link Failure to be meant because handoff parameter is provided with the base station that problem causes occurring unusual switching.

Wherein, to the different anomalies switching type, the embodiment of the invention can adopt diverse ways to adjust corresponding statistics number or notify RRC reconstructed object base station to adjust corresponding statistics number at source base station.

In one embodiment, switching type was for switching evening unusually, and the problem base station that then causes Radio Link Failure adds 1 for the base station of RLF takes place so late statistics number will be switched in the base station of generation RLF.

In another embodiment; Unusual switching type is for switching too early; The problem base station that then causes Radio Link Failure is RRC reconstructed object base station, and handover report is sent to RRC reconstructed object base station in the base station that RLF then takes place, and indicates this RRC reconstructed object base station will switch late statistics number and adds 1.

In another embodiment; Unusual switching type is for switching to wrong cell; The problem base station that then causes Radio Link Failure is that RLF base station before takes place UE; Handover report is sent in the base station of base station before RLF takes place this UE that RLF then takes place, and indicates this UE generation RLF base station before will switch to the wrong cell statistics number and adds 1.

In the present embodiment, if follow-up receiving subtracts counting indication, then can decide processing according to receiving this time that subtracts the counting indication whether within this statistics adjustment cycle to this statistics number.When receiving the said time that subtracts counting indication within this statistics adjustment cycle the time, can this statistics number be subtracted 1; When receiving the said time that subtracts counting indication not within this statistics adjustment cycle the time, then the statistics number of the unusual switching type confirmed not to be handled, the statistics number of the unusual switching type that also is about to confirm remains unchanged.

Wherein, Whether confirm to receive the said time that subtracts the counting indication adds up within adjustment cycle at this; Can be through with the said time span that subtracts the UE timer record in the counting indication, and this locality calculate be indicated to and nearest precedingly once add up the method that time span compares between the adjustment time and realize from receiving the said counting that subtracts.

If less than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication within this statistics adjustment cycle; If greater than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication not within this statistics adjustment cycle.

Wherein, the zero-time of the time span of said UE timer record is: when RLF takes place in UE or UE initiate RRC when rebuilding request UE when getting into Idle state or UE rebuild when being refused; The concluding time of the time span of said UE timer record is: UE receive RRC when setting up successful response message or UE when RRC sets up successfully afterwards transmission RLF report.

The method that the embodiment of the invention provides; Through the sign of in RLF indication, carrying; Confirm the transmission opportunity of RLF indication; And then definite Radio Link Failure reason and adjust the corresponding statistics number of unusual switching type, can correctly to distinguish Radio Link Failure former because statistics handoff parameter problem still covers under the prerequisite of leak problem satisfying, reduce the too much information stores of base station side and the wasting of resources.

A kind of Radio Link Failure that Fig. 2 provides for the embodiment of the invention is indicated the flow chart of the processing method of (RLF indication), and this method also is applied to receive the base station of RLF indication, and please with reference to Fig. 2, this method comprises:

Step 201 to step 202 can repeat no more at this with reference to the step 101 in embodiment illustrated in fig. 1 to step 102.

Step 203: if said RLF indication carries out new RRC at UE to set up the back transmission, and comprise RLF report among the said RLFindication, confirm that according to second sign of carrying among the said RLF indication whether UE is by reestablishment rejected mistake;

In the present embodiment; This RLF indication carries out new RRC at UE to set up the back transmission; And UE maybe be by reestablishment rejected mistake after RLF takes place, and also is that UE takes place to choose behind the RLF that the RRC connection reconstruction is carried out in certain sub-district but by this sub-district refusal, then initiate this new RRC to set up; UE might not choose proper cell yet and carries out the RRC connection reconstruction after RLF takes place, cause getting into Idle state, then initiates this new RRC and sets up.Wherein, if this UE once by reestablishment rejected mistake, then explains the RLF indication that does not comprise RLF report that has had step 103; If this UE is not by reestablishment rejected mistake; Then there is not the RLF indication that does not comprise RLF report of step 103 in explanation; And it is former owing in the processing of step 103, having given tacit consent to Radio Link Failure because the handoff parameter problem; Therefore for both of these case, carry out different processing respectively.Therefore, in the present embodiment, can further distinguish this UE whether once by reestablishment rejected mistake, so that carry out follow-up processing through second sign of in RLF indication or among the RLF report, carrying.

In the present embodiment, show UE whether once by the second reestablishment rejected sign can with step 202 in show that RLFindication sends and be designated same sign or different identification first of opportunity.When adopting same sign to realize, for example through a binary numeric representation; When adopting different identification to realize, for example realize through two signs, present embodiment not with this as restriction.

Step 204: confirm the Radio Link Failure reason according to said RLF report, and whether once handled accordingly by reestablishment rejected mistake according to the UE that confirms;

In the present embodiment; If confirm UE, then there has been the RLF indication that does not comprise RLF report shown in step 103 among Fig. 1 before the explanation, owing to do not receive RLF report before by reestablishment rejected mistake; Can't confirm Radio Link Failure former thereby with this reason acquiescence for the handoff parameter problem; Therefore, after receiving RLF report, confirm real failure cause according to this RLFreport.

Wherein since before according to the handoff parameter problem of acquiescence, the statistics number of unusual switching type is added 1; Therefore; If confirm that according to this RLF report said Radio Link Failure is former because the handoff parameter problem of acquiescence explains that acquiescence before is right this moment, do not process this moment; If confirm that according to this RLF report said Radio Link Failure reason is not the handoff parameter problem of acquiescence this moment; Acquiescence before explaining is wrong; To subtract 1 according to the statistics number of the definite unusual switching type of said RLF indication, and also be about to wrong statistics and cut.

Same; Because causing the problem base station of Radio Link Failure possibly not be the base station that RLF takes place; Therefore; To subtract 1 according to the statistics number of the definite unusual switching type of said RLF indication, and also can indicate this problem base station to subtract 1 through sending the mode that subtract the counting indication to the problem base station that causes Radio Link Failure according to the statistics number of the definite unusual switching type of said RLF indication.

In the present embodiment; If confirm that UE is not by reestablishment rejected mistake; Not having the RLF indication that does not comprise RLF report shown in step 103 among Fig. 1 before explaining, also is that UE does not choose the proper cell reconstruction to cause the new RRC of idle back initiation to connect foundation behind RLF, at this moment; Can directly confirm failure cause, and handle accordingly according to failure cause according to this RLF report.

Wherein, the handoff parameter problem if said Radio Link Failure is former, the statistics number of then that said RLF indication is corresponding unusual switching type adds 1; If said Radio Link Failure reason is not the handoff parameter problem, then do not handle.

In the present embodiment; Since UE initiate new RRC set up possibly be for the first time by the time very short after reestablishment rejected, also possibly cross for a long time, and the handover optimization algorithm carries out the handoff parameter adjustment according to statistics number some cycles is arranged; Also be; Receive this UE and carry out time that new RRC sets up the RLF indication that sends the back and possibly pass through and optimize and revise a little, within this statistics adjustment cycle, in this case; Because last statistics adjustment cycle had been done parameter adjustment, without any need for processing.Therefore, in the method for present embodiment, carry out after new RRC sets up the RLF indication that sends the back receiving this UE, whether the time that also will confirm to receive said RLF indication is within this statistics adjustment cycle; If whether the time that receives said RLF indication then confirms UE by reestablishment rejected mistake according to the sign among the said RLF indication within this statistics adjustment cycle, and execution in step 204; If the time that receives said RLF indication does not then process not within this statistics adjustment cycle.

Wherein, Can be through time span with the record of the UE timer among the said RLF report; And this locality calculate from receiving said RLF indication to the nearest preceding mode that time span compares the adjustment time of once adding up, whether the time of confirming to receive said RLF indication within this statistics adjustment cycle.

If the time span of said UE timer record, is then confirmed as the time that receives said RLF indication less than the said local time span of calculating and is added up within adjustment cycle at this; If the time span of said UE timer record greater than the said local time span of calculating, is then confirmed as the time that receives said RLF indication and is not added up within adjustment cycle at this.

The method that provides through the embodiment of the invention; Through the sign of in RLF indication, carrying; Confirm the transmission opportunity of RLF indication; And then definite Radio Link Failure reason and adjust the corresponding statistics number of unusual switching type, can correctly to distinguish Radio Link Failure former because statistics handoff parameter problem still covers under the prerequisite of leak problem satisfying, reduce the too much information stores of base station side and the wasting of resources.

A kind of Radio Link Failure that Fig. 3 provides for the embodiment of the invention is indicated the flow chart of the processing method of (RLF indication); In this method corresponding diagram 1 or the method embodiment illustrated in fig. 2; Switch the unusual switching type that perhaps switches to wrong cell too early; Be applied to the problem base station in the above-mentioned unusual switching type, please with reference to Fig. 3, this method comprises:

Step 301: receive the base station that RLF takes place and receiving the handover report of sending behind the RLF indication;

Wherein, Confirming this RLF indication when the base station that RLF takes place carries out sending after RRC rebuilds at UE; And when not comprising RLF report among this RLF indication; Because unusual switching type is to switch perhaps to switch to wrong cell too early; Promptly the base station of this generation RLF is not to be the problem base station that causes Radio Link Failure yet, and then handover report is sent to the problem base station that causes Radio Link Failure in the base station of this generation RLF, indicates this problem base station will switch too early statistics number accordingly or switch to the wrong cell statistics number and adds 1.

Step 302: the statistics number of the unusual switching type of indicating in the handover report is added 1 according to said handover report.

Wherein, after the problem base station of present embodiment received handover report, according to the indication in this handover report, perhaps switching to the wrong cell statistics number added 1 will to switch too early statistics number accordingly.

In the present embodiment; Confirming this RLF indication when the base station that RLF takes place carries out sending after new RRC sets up at UE; And when comprising RLF report among this RLF indication; Because unusual switching type is to switch too early perhaps to switch to wrong cell, promptly the base station of this generation RLF is not to be the problem base station that causes Radio Link Failure yet, then when confirming to subtract 1 to corresponding statistics number; The base station of this generation RLF is sent to the problem base station that causes Radio Link Failure and is subtracted the counting indication, and indication problem base station will be switched too early statistics number accordingly, and perhaps switching late statistics number subtracts 1.

In the present embodiment; After according to step 302 statistics number of the unusual switching type of indicating in the handover report being added 1; If this that receive that base station that RLF takes place sends subtracts the counting indication; Then, corresponding statistics number is subtracted 1, when receiving this time that subtracts the counting indication within this statistics adjustment cycle when receiving this time that subtracts counting indication within this statistics adjustment cycle the time; Then the statistics number to unusual switching type is left intact, and the statistics number that also is about to definite unusual switching type remains unchanged.

Wherein, Whether confirm to receive the said time that subtracts the counting indication adds up within adjustment cycle at this; Also can be through with the said time span that subtracts the UE timer record in the counting indication, and this locality calculate be indicated to and nearest precedingly once add up the method that time span compares between the adjustment time and realize from receiving the said counting that subtracts.If less than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication within this statistics adjustment cycle; If greater than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication not within this statistics adjustment cycle.

The method that provides through the embodiment of the invention; Through according to handover report and subtract counting indication the corresponding statistics number of unusual switching type is adjusted; Can correctly to distinguish Radio Link Failure former because statistics handoff parameter problem still covers under the prerequisite of leak problem satisfying, reduce the too much information stores of base station side and the wasting of resources.

For the method that makes Fig. 1-embodiment illustrated in fig. 3 is clear more understandable, different unusual switching types and the different scenes of RLF take place below in conjunction with UE, the method for present embodiment is elaborated.

Fig. 4-Fig. 7 is when switching evening for the unusual switching type that RLF takes place UE, and UE and base station eNB 0, RRC reconstructed object base station eNB 1, RRC that RLF takes place set up the flow chart that target BS eNB2 carries out information interaction.In the present embodiment; Radio Link Failure takes place in UE sub-district under eNB0, and certain sub-district of choosing under the eNB1 rebuilds, after reconstruction is rejected and gets into Idle state; Successfully setting up new RRC at eNB2 connects; And RLF report sent to eNB2, and after eNB2 gets access to the RLF report of UE, can be according to the sign of carrying among RLF indication or the RLF report to the base station eNB 0 that RLF takes place; Also be that parameter is provided with the wrong problem base station transmission RLF indication (Fig. 4, Fig. 5) of possibility, also can send this RLF indication (Fig. 6, Fig. 7) to the base station eNB 1 that UE initiates to rebuild.

Wherein, to be eNB2 send second RLF indication to eNB0 to Fig. 4, the flow chart of the time that eNB0 receives this indication within its this statistics adjustment cycle; To be eNB2 send second RLF indication to eNB0 to Fig. 5, and the time that eNB0 receives this indication is the flow chart within its this statistics adjustment cycle.To be eNB2 send second RLF indication to eNB1 to Fig. 6, and eNB0 receives time that subtracts the counting indication that eNB1 sends flow chart within its this statistics adjustment cycle; To be eNB2 send second RLF indication to eNB1 to Fig. 7, and eNB0 receives time that subtracts the counting indication that eNB1 sends flow chart within its this statistics adjustment cycle.

Please with reference to Fig. 4, this flow process comprises:

Radio Link Failure takes place in step 401:UE certain sub-district under eNB0;

Certain sub-district that step 402:UE chooses under the eNB1 rebuilds request;

Step 403:eNB1 has refused the reconstruction request of UE;

Step 404:eNB1 sends the RLF indication that article one does not comprise RLF report to eNB0;

Wherein, carry sign among this RLF indication, represent that this RLF indication is that UE carries out sending after RRC rebuilds; Still UE initiates to send after new RRC sets up; Simultaneously, also carry sign among this RLF indication, whether UE is once by reestablishment rejected mistake in expression.More than two signs can utilize same sign to realize, also can utilize different signs to realize, present embodiment not with this as restriction.

In the present embodiment, according to the sign of carrying among this RLF indication, confirm that this RLF indication carries out RRC at UE and rebuilds the back transmission.

Step 405:eNB0 acquiescence Radio Link Failure is former because the problem of handoff parameter; Be judged as according to article one RLF indication unusual switching type for the situation of switching evening under, eNB0 crosses late statistics number once according to the sign among article one RLF indication increase to the switching of respective cell.

Wherein, rebuild the back transmission because RLF indication carries out RRC at UE, and do not comprise RLF report among this RLF indication, the handoff parameter problem of acquiescence will be switched late statistics number and add 1 so definite Radio Link Failure is former.

Step 406:UE initiates to rebuild and is rejected back entering Idle state, and certain sub-district under eNB2 is initiated new RRC and set up request subsequently;

Wherein, in this RRC connection request, comprised RLF report or RLF report indication.

After step 407:eNB2 got access to the RLF report of UE according to above-mentioned RRC connection request, the eNB0 that RLF takes place to UE according to the information among the RLF report sent second RLF indication through X2 or S1 mouth.

Wherein, also carry sign among this second RLF indication, show that this second RLF indication carries out sending after RRC rebuilds at UE, still initiates to send after new RRC sets up at UE; And show that whether this UE is once by reestablishment rejected mistake.

Step 408:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can subtract 1 perhaps with switching late statistics number, be left intact to switching late statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, After eNB0 receives this second RLF indication; Also to confirm that this second RLF indication is that UE carries out sending after RRC rebuilds according to the sign of carrying among this second RLF indication; Still UE initiates new RRC and sets up that the back sends, and in the present embodiment, confirms to be that initiating new RRC at UE sets up that the back sends.

Wherein, Because it possibly be by the time very short after reestablishment rejected for the first time that UE initiates new RRC foundation; Also maybe be after for a long time; And the handover optimization algorithm carries out handoff parameter adjustment according to statistics number some cycles is arranged, and also is that eNB0 possibly drop within this statistics adjustment cycle when receiving second RLF indication, also possibly drop on next the statistics within the adjustment cycle.

In order to make correct statistics at eNB0; Can increase a timer in the UE side; At this timer of the RRC of UE reconstruction the startup when being refused; Perhaps when RLF takes place UE, start this timer, perhaps initiate to start when RRC rebuilds request this timer, perhaps when UE gets into Idle state, start this timer at UE; Receive that at UE new initiation RRC stops timer when setting up successful response message, stop this timer when perhaps after the new RRC of UE sets up successfully, sending RLF report.Time of this timer record is included among the RLF report sends to eNB2; ENB2 sends the second RLF indication that comprises this RLF report to eNB0 again; Suppose that eNB0 is T1 with timer length writing time in this Indication message; ENB0 receives that the time of second RLF indication and the length between nearest previous parameter adjustment time are T2, if T1＜T2 then confirms to drop within this statistics adjustment cycle when eNB0 receives second RLF indication; If T1＞T2 then confirms to drop on outside this statistics adjustment cycle when eNB0 receives second RLF indication, within the for example next statistics adjustment cycle.

In the present embodiment, eNB0 the time of receiving second RLF indication within this statistics adjustment cycle.ENB0 further confirms that according to the sign of carrying among this second RLF indication whether UE is once by reestablishment rejected mistake again; In the present embodiment; Confirm that UE is once by reestablishment rejected mistake; Article one RLF indication was also promptly arranged before, and then eNB0 also is that RLF report judges that previous RLF is because handoff parameter problem or covering leak problem according to the information among this second RLF indication; If it is correct before having given tacit consent to statistics for the handoff parameter problem definition really, then need not to revise the statistics number in evening; Explain that then previous acquiescence statistics is wrong if cover the leak problem, then need from switch late statistics number, to deduct once.

Please with reference to Fig. 5, this flow process comprises:

Step 501-507 can repeat no more with reference to the step 401-407 in embodiment illustrated in fig. 4 here.

Step 508:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can be left intact to switching late statistics number, the statistics number that also is about to definite unusual switching type remains unchanged.

In the present embodiment; ENB0 is according to the sign of carrying among this second RLF indication that receives; Confirm that this second RLF indication is that UE carries out sending after RRC rebuilds, and the time that eNB0 receives this second RLF indication is not within this statistics adjustment cycle.Because eNB0 has surpassed when receiving second RLF indication and has has originally optimized and revised a little; Fallen within the next statistics adjustment cycle; And this Indication message since be with the last cycle in article one RLFindication be associated; Because the last cycle had been done parameter adjustment, for next measurement period, just should to this indication information any response not arranged again, promptly late number of times is not crossed in the switching of this new measurement period and changed.

Please with reference to Fig. 6, this flow process comprises:

Step 601-606 can repeat no more at this with reference to step 401-406 in embodiment illustrated in fig. 4;

After step 607:eNB2 gets access to the RLF report of UE according to above-mentioned RRC connection request, send second RLF indication to the eNB1 that UE carries out RRC reconstruction request through X2 or S1 mouth according to the information among this RLF report.

Step 608:eNB1 carries out handled according to the second RLF indication that receives.

In the present embodiment, can be to be left intact to switching late statistics number, the statistics number that is about to definite unusual switching type remains unchanged, and perhaps sends to eNB0 to subtract the counting indication.

Wherein, ENB1 is according to the sign of carrying among this second RLF indication; Confirm that this second RLF indication initiates new RRC at UE to set up the back and send, and this UE is once by reestablishment rejected mistake, but because to control oneself not be to be the problem base station that causes Radio Link Failure; Then eNB1 judges that according to the RLF report among this second RLF indication last time RLF was because handoff parameter problem or covering problem; If be the handoff parameter problem really, show that then previous acquiescence statistics is correct, need not to do any processing; If covering problem shows that then previous acquiescence statistics is wrong, eNB1 can be to the problem base station that causes Radio Link Failure, also is that eNB0 sends and subtracts the counting indication information, and notice eNB0 deducted once from switch late number of times.

Step 609:eNB0 carries out handled according to the counting indication that subtracts that receives.

In the present embodiment, be to subtract 1 with switching late statistics number.

Wherein, According to the UE side timer record of front definition when RLF takes place in UE or UE initiate RRC when rebuilding request UE when getting into Idle state or UE rebuild when refusing UE and receive RRC when setting up successful response message or UE time span T1 during transmission RLF report after RRC sets up successfully; And need in subtracting the counting indication, to carry this time T1; ENB0 receives that the length between time that this subtracts counting indication and nearest previous parameter adjustment time is assumed to be T3; ENB0 receives when subtracting the counting indication; If judge T1＜T3, confirm then to receive that the above-mentioned time that subtracts the counting indication is before optimizing and revising a little, can subtract the counting indication according to this at this moment and from cross switching in evening statistics number, subtract one; If T1＞T3, confirm then to receive that the above-mentioned time that subtracts the counting indication is after optimizing and revising a little, show this and notify to current that to optimize and revise the cycle invalid, need not to respond this notification message and do not do any adjustment switching late statistics number.

In the present embodiment, falling within this statistics adjustment cycle because eNB0 receives this time that subtracts the counting indication, also is that eNB0 receives that the above-mentioned time that subtracts the counting indication is before optimizing and revising a little, and then eNB0 can subtract one from cross switching in evening statistics number.

Please with reference to Fig. 7, this flow process comprises:

Step 701-708 can repeat no more at this with reference to the step 601-607 in embodiment illustrated in fig. 6;

Step 709:eNB0 carries out handled according to the counting indication that subtracts that receives.

In the present embodiment; Because eNB0 receives this time that subtracts the counting indication and falls into outside this statistics adjustment cycle; Receive promptly that also the above-mentioned time that subtracts counting indication is that then eNB0 is left intact after optimizing and revising a little, remain unchanged with the statistics number of the unusual switching type guaranteeing to confirm.

Fig. 8-Fig. 9 is when switching evening for the unusual switching type that RLF takes place UE, and UE and base station eNB 0, RRC reconstructed object base station eNB 1, RRC that RLF takes place set up the flow chart that target BS eNB2 carries out information interaction.In the present embodiment; Radio Link Failure takes place in UE sub-district under eNB0; Non-selectedly rebuild to proper cell, thereby get into idle condition, UE certain sub-district under eNB2 is initiated new RRC and is set up and ask subsequently; After eNB2 gets access to the RLF report of UE, send RLF indication through X2 or S1 mouth to eNB0 according to identification information wherein.

Wherein, to be eNB2 send RLF indication to eNB0 to Fig. 8, the flow chart of the time that eNB0 receives this indication within its this statistics adjustment cycle; To be eNB2 send RLF indication to eNB0 to Fig. 9, and the time that eNB0 receives this indication is the flow chart within its this statistics adjustment cycle.

Please with reference to Fig. 8, this flow process comprises:

Radio Link Failure takes place in step 801:UE certain sub-district under eNB0;

Thereby step 802:UE is non-selected to the resident entering of proper cell idle condition, and UE certain sub-district under eNB2 is initiated new RRC and set up request subsequently;

Wherein, this RRC sets up RLF report or the RLF report indication that carries UE in the request.

After step 803:eNB2 gets access to the RLF report of UE, send RLF indication through X2 or S1 mouth to eNB0 according to the information among this RLF report;

Wherein, this RLF indication also carries sign, shows that this RLF indication carries out sending after RRC rebuilds at UE, still initiates to send after new RRC sets up at UE; And show that whether this UE is once by reestablishment rejected mistake.

Step 804:eNB0 carries out handled according to the RLF indication that receives.

In the present embodiment, can add 1 perhaps with switching late statistics number, be left intact to switching late statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, according to the sign of carrying among this RLF indication, eNB0 confirms that this RLF indication initiates new RRC at UE to set up the back transmission.

Wherein, UE initiate new RRC set up possibly be after getting into Idle state the very short time; But also possibly cross for a long time; And the handover optimization algorithm carries out handoff parameter adjustment according to statistics number some cycles is arranged, and also is that eNB0 possibly drop within this statistics adjustment cycle when receiving RLFindication, also possibly drop on outside this measurement period.

Wherein, In order to make correct statistics at eNB0, need record UE to get into Idle state and receive that to UE new initiation RRC sets up the time span between the successful response message, in fact can utilize the UE timer; Start-up time is when being UE entering Idle state; Dwell time is that UE receives when new initiation RRC sets up successful response message that UE when RRC sets up that successfully RLFreport is sent in the back, supposes that eNB0 is T1 with timer length writing time among the RLF indication, and eNB0 receives that the time of this RLFindication and the length between nearest previous parameter adjustment time are T2; If T1＜T2 drops on when then confirming to receive RLFindication within this statistics adjustment cycle; If T1＞T2 possibly drop on outside this statistics adjustment cycle when then confirming to receive RLF indication.

In the present embodiment; ENB0 drops within this statistics adjustment cycle when receiving RLF indication; Whether eNB0 further confirms UE once by reestablishment rejected mistake according to the sign of carrying among this RLF indication again, in the present embodiment, confirms that UE is never by reestablishment rejected mistake; Promptly there is not before article one RLF indication yet; Then eNB0 also is that RLF report judges that previous RLF is owing to the handoff parameter problem or covers the leak problem, if the handoff parameter problem then added one to the number of times that switches evening according to the information among this RLF indication; Then statistics number is not done any adjustment if cover the leak problem.

Please with reference to Fig. 9, this flow process comprises:

Step 901-903 can repeat no more at this with reference to step 801-803 in embodiment illustrated in fig. 8.

Step 904:eNB0 carries out handled according to the RLF indication that receives.

In the present embodiment; ENB0 has surpassed originally to optimize and revise when receiving RLF indication and has a little fallen within the next statistics adjustment cycle; And this Indication message is owing to be that the RLF incident that takes place in the last cycle is associated; And, for next measurement period, just should to this indication information any response not arranged again because the last cycle had been done parameter adjustment, promptly the late number of times of the mistake of this new measurement period is not changed.

When too early, UE and base station eNB 0, RRC reconstructed object base station eNB 1, RRC that RLF takes place set up the flow chart that target BS eNB2 carries out information interaction to the unusual switching type that RLF takes place for UE Figure 10-Figure 13 in order to switch.In the present embodiment; UE successfully under the eNB1 certain sub-district switch to certain sub-district under the eNB0; After this sub-district short time stop, RLF takes place promptly and base station eNB 1 initiation reconstruction request under the cell-of-origin, according to the judgment criterion of switching evening, eNB1 meeting elder generation is to RLF indication of eNB0 transmission; ENB0 is judged as switching too early according to the nearest successful switch of this UE to the RLF time span takes place, and promptly sends Handover report to eNB1 and switches too early statistics number once so that the eNB1 side increases.

Wherein, Radio Link Failure takes place in UE sub-district under eNB0; Certain sub-district of choosing under the eNB1 rebuilds; After reconstruction is rejected and gets into Idle state, possibly successfully set up new RRC at eNB2 and connect, eNB2 can be according to wherein identifying to the base station eNB 0 that RLF takes place after getting access to the RLF report of UE; Also be that parameter is provided with the wrong problem base station transmission RLFindication (Figure 10, Figure 11) of possibility, also can send this RLF indication (Figure 12, Figure 13) to the base station eNB 1 that UE initiates to rebuild.

Wherein, to be eNB2 send second RLF indication to eNB0 to Figure 10, and eNB0 confirms the Radio Link Failure reason, and eNB1 receives time that subtracts the counting indication that eNB0 sends flow chart within its this statistics adjustment cycle; To be eNB2 send second RLF indication to eNB0 to Figure 11, and eNB0 confirms wireless failure cause, and eNB1 receives time that subtracts the counting indication that eNB0 sends flow chart within its this statistics adjustment cycle; To be eNB2 send second RLF indication to eNB1 to Figure 12, the flow chart of the time that eNB1 receives this indication within its this statistics adjustment cycle; To be eNB2 send second RLF indication to eNB1 to Figure 13, and the time that eNB0 receives this indication is the flow chart within its this statistics adjustment cycle.

Please with reference to Figure 10, this flow process comprises:

Step 1001:UE successfully switches to eNB0 from eNB1;

Radio Link Failure takes place in step 1002:UE after the eNB0 short stay;

Certain sub-district that step 1003:UE chooses under the eNB1 rebuilds request;

Step 1004:eNB1 has refused the reconstruction request of UE;

Step 1005:eNB1 sends the RLF indication that article one does not comprise RLF report to eNB0;

Wherein, Carry sign among this article one RLF indication; Represent that this article one RLF indication is that UE carries out RRC and rebuilds the back and send, still UE initiates new RRC and sets up the back transmission, simultaneously; Also carry sign among this article one RLF indication, whether UE is once by reestablishment rejected mistake in expression.More than two signs can utilize same sign to realize, also can utilize different signs to realize, present embodiment not with this as restriction.

In the present embodiment,, confirm that this RLF indication carries out RRC at UE and rebuilds the back transmission, do not need then to judge again that whether UE is once by reestablishment rejected mistake according to the sign of carrying among this RLF indication.

Step 1006:eNB0 basis last time handover success is judged as too early switching to the time span that RLF takes place; Acquiescence is because the switching that the handoff parameter problem causes is too early; Thereby eNB0 sends Handover report to eNB1, and indication eNB1 increases and switches too early once;

Wherein, Rebuild the back transmission because this RLF indication carries out RRC at UE, and do not have RLF report among this RLF indication, therefore; Acquiescence is because the switching that the handoff parameter problem causes is too early in the present embodiment; Because eNB0 is not the problem base station that causes Radio Link Failure, then this eNB0 sends Handover report to the problem base station eNB that causes Radio Link Failure 1, indicates this eNB1 will switch too early statistics number increase once again.

Step 1007:eNB1 will switch too early statistics number increase once;

Wherein, eNB1 will switch too early statistics number increase once according to the indication among the Handover report.

Step 1008:UE initiates new RRC at eNB2 and sets up;

Step 1009:eNB2 sends the second RLF indication that has RLF report to eNB0 through X2 or S1.

Wherein, this second RLF indication also carries sign, shows that this second RLF indication carries out sending after RRC rebuilds at UE, still initiates to send after new RRC sets up at UE; And show that whether this UE is once by reestablishment rejected mistake.

Step 1010:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can send to subtract to eNB1 and count indication perhaps, be left intact to switching too early statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, according to the sign of carrying among this second RLF indication, eNB0 confirms that this second RLF indication initiates new RRC at UE to set up the back transmission.

Wherein, Because eNB0 is not the problem base station that causes Radio Link Failure, therefore, eNB0 need not confirm that its time of receiving this second RLF indication is whether within this statistics adjustment cycle; But further confirm that according to the sign of carrying among this RLFindication whether UE is once by reestablishment rejected mistake; In the present embodiment, confirm UE, article one RLF indication was also promptly arranged before once by reestablishment rejected mistake; Then eNB0 judges that according to the RLFreport among the second RLF indication last time RLF was because handoff parameter problem or covering problem; If be the handoff parameter problem really, show that then previous acquiescence statistics is correct, need not to do any processing; If covering problem; Show that then previous acquiescence statistics is wrong; Because eNB0 is not the problem base station that causes Radio Link Failure, so eNB0 can send indication information to the problem base station eNB that causes Radio Link Failure 1, notice eNB1 deducts once from switch too early statistics number.

Step 1011:eNB1 carries out handled according to the counting indication that subtracts that receives, and in the present embodiment, is that the too early statistics number of switching is subtracted 1.

Wherein, and switched in evening similarly, please refer to Fig. 6, Fig. 7, consider eNB1 receive subtract the counting indication be optimize and revise a little before or after.The time span T1 that the UE side timer that defines according to the front writes down; And need in subtracting the counting indication, to carry this time T1; ENB1 receives that the time that subtracts counting indication and length between nearest previous parameter adjustment time are assumed to be T3, and eNB1 receives when subtracting the counting indication, as if judging T1＜T3; Confirm then to receive that subtracting the counting indication is before optimizing and revising a little, can subtract the counting indication according to this and from the too early number of times of statistics, subtract one; If judge T1＞T3, confirm then to receive that subtracting the counting indication is after optimizing and revising a little, promptly show this and indicate to current that to optimize and revise the cycle invalid, need not to respond this notification message and statistics number is not done any adjustment.

In the present embodiment, eNB1 receives that the time that subtracts the counting indication is within its this statistics adjustment cycle.ENB1 subtracts the counting indication according to this, and the too early switching times of adding up is deducted once.

Please with reference to Figure 11, this flow process comprises:

Step 1101-1110 can repeat no more at this with reference to step 1001-1010 in embodiment illustrated in fig. 10;

Step 1111:eNB1 carries out handled according to the counting indication that subtracts that receives.

In the present embodiment, can be left intact to switching too early statistics number, the statistics number that also is about to definite unusual switching type remains unchanged.

In the present embodiment; Because eNB1 receives this time that subtracts the counting indication and falls into outside this statistics adjustment cycle; Receive promptly that also the above-mentioned time that subtracts counting indication is that then eNB1 is left intact after optimizing and revising a little, remain unchanged with the statistics number of the unusual switching type guaranteeing to confirm.

Please with reference to Figure 12, this flow process comprises:

Step 1201-1208 can repeat no more at this with reference to the step 1001-1008 among Figure 10 embodiment;

Step 1209:eNB2 sends the second RLF indication that has RLF report to eNB1 through X2 or S1;

Step 1210:eNB1 carries out handled according to the second RLF indication that receives.

In the present embodiment, can subtract 1 perhaps with switching too early statistics number, be left intact to switching too early statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, according to the sign of carrying among this second RLF indication, eNB1 confirms that this second RLF indication initiates new RRC at UE to set up the back transmission.

Wherein, eNB1 to consider to receive the time of second RLF indication be before optimizing and revising a little or after.The time span T1 that the UE side timer that defines according to the front writes down; ENB1 receives that the time of second RLF indication and the length between nearest previous parameter adjustment time are T2; When eNB1 receives the second RLFindication that has RLF report; If judge T1＜T2, confirm then to receive that the time of second RLF indication is before optimizing and revising a little; If judge T1＞T2, confirm then to receive that the time of second RLF indication is after optimizing and revising a little, show this and notify to current that to optimize and revise the cycle invalid, need not to respond this notification message and statistics number is not done any adjustment.

In the present embodiment; The time of receiving second RLF indication is before optimizing and revising a little, and then eNB1 further confirms that according to the sign of carrying among this second RLF indication whether UE is once by reestablishment rejected mistake, in the present embodiment again; Confirm that UE is once by reestablishment rejected mistake; Also promptly before article one RLF indication was arranged, and this eNB1 is the too early problem base station of this switching, then eNB1 judges that according to the RLF report among this second RLF indication last time RLF was because handoff parameter problem or covering problem; If be the handoff parameter problem really, show that then previous acquiescence statistics is that any processing is done in correct need not; If covering problem shows that then previous acquiescence statistics is wrong, eNB1 deducts once from switch too early number of times.

Please with reference to Figure 13, this flow process comprises:

Step 1301-1309 can repeat no more at this with reference to step 1201-1209 in embodiment illustrated in fig. 12;

Step 1310:eNB1 carries out handled according to the second RLF indication that receives.

In the present embodiment, the time of receiving second RLF indication is after optimizing and revising a little, and to optimize and revise the cycle invalid to current then to show this notice, need not to respond this notification message, and eNB1 does not do any adjustment to statistics number.

Figure 14-15 is for switching too early another one application scenarios, i.e. the UE failure that from eNB0 switches to the process of eNB1, switches, and UE is reconstructed into eNB0 and is refused then, and then UE initiates new RRC foundation to eNB2.Wherein, Figure 14 is that eNB2 sends RLF indication to eNB0, and eNB0 receives the sketch map of time within this statistics adjustment cycle of this RLF indication; To be eNB2 send RLF indication to eNB0 to Figure 15, and the time that eNB0 receives this RLF indication is the sketch map within this statistics adjustment cycle.

Please with reference to Figure 14, this flow process comprises:

Step 1401:UE switches to the failure that switches the eNB1 process from eNB0;

Certain sub-district that step 1402:UE chooses under the eNB0 rebuilds request;

Step 1403:eNB0 has refused the reconstruction request of UE;

Wherein, because eNB0 is the problem base station in this handoff procedure, and UE is reconstructed into this problem base station, and therefore, eNB0 will switch too early statistics number and add 1 under the too early situation of the switching that acquiescence handoff parameter problem causes.

Step 1404:UE initiates new RRC at eNB2 and sets up;

Step 1405:eNB2 sends the RLF indication that has RLF report to eNB0 through X2 or S1.

Wherein, this second RLF indication carries sign, shows that this RLF indication carries out sending after RRC rebuilds at UE, still initiates to send after new RRC sets up at UE; And show that whether this UE is once by reestablishment rejected mistake.

Step 1406:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can subtract 1 perhaps with switching too early statistics number, be left intact to switching too early statistics number, the statistics number that also is about to definite unusual switching type remains unchanged.

Wherein, eNB0 to consider to receive the time of RLF indication be before optimizing and revising a little or after.The time span T1 that the UE side timer that defines according to the front writes down; ENB0 receives that the time of RLF indication and the length between nearest previous parameter adjustment time are T2; When eNB0 receives the RLF indication that has RLF report; If judge T1＜T2, confirm then to receive that the time of RLF indication is before optimizing and revising a little; If judge T1＞T2, confirm then to receive that the time of RLF indication is after optimizing and revising a little, show this and notify to current that to optimize and revise the cycle invalid, need not to respond this notification message and statistics number is not done any adjustment.

In the present embodiment; The time of receiving RLF indication is before optimizing and revising a little, and then eNB0 further confirms that according to the sign of carrying among this RLF indication whether UE is once by reestablishment rejected mistake, in the present embodiment again; Confirm that UE is once by reestablishment rejected mistake; Although there was not article one RLF indication before,, also be eNB0 because reconstructed base station and problem base station are same; So the processing of the Radio Link Failure reason of acquiescence has been done in this problem base station; Then eNB0 judges that according to the RLF report among this RLF indication last time RLF was because handoff parameter problem or covering problem if be the handoff parameter problem really, show that then previous acquiescence statistics is that any processing is done in correct need not; If covering problem shows that then previous acquiescence statistics is wrong, eNB0 deducts once from switch too early number of times.

Please with reference to Figure 15, this flow process comprises:

Step 1501-1505 can repeat no more at this with reference to step 1401-1405 in embodiment illustrated in fig. 14;

Step 1506:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, the time of receiving RLF indication is after optimizing and revising a little, and to optimize and revise the cycle invalid to current then to show this notice, need not to respond this notification message, and eNB0 does not do any adjustment to statistics number.

Figure 14 and embodiment illustrated in fig. 15 in; With Fig. 6 and embodiment illustrated in fig. 7 similar; ENB2 also can send to eNB1 with RLFindication, and it still is to send to subtract to eNB0 to count indication that eNB1 confirms to be left intact according to the sign among this RLF indication, makes problem base station eNB 0 according to receiving that this subtracts the counting indication and send the time whether to add up within the adjustment cycle its this; Decision will be switched too early statistics number and added 1, still be left intact.The processing procedure of this embodiment and Fig. 6, Fig. 7 embodiment is similar, repeats no more at this.

The unusual switching type that RLF takes place for UE Figure 16-Figure 17 is when switching to wrong cell, and UE and base station eNB 0, problem base station eNB 1, RRC reconstructed object base station eNB 2 and the RRC of generation RLF set up the flow chart that target BS eNB3 carries out information interaction.In the present embodiment; UE successfully under the eNB1 certain sub-district switch to certain sub-district under the eNB0; Take place after the short stay RLF to take place in this sub-district; Initiate the request of rebuilding to eNB2 then, according to the judgment principle that switched evening, at first eNB2 sends RLF indication to eNB0; The eNB0 lateral root is judged as to the time span that RLF takes place and cell ID according to handover success last time and switches to wrong cell, then eNB0 to eNB1 send handover report so that under the problem cells base station eNB 1 add up and switch to wrong cell once.Refused the back as if the UE reconstruction and initiate new RRC foundation to eNB3, the eNB0 transmission second RLF indication (Figure 16, Figure 17) of RLF possibly take place to UE in eNB3 according to the identification information among the RLF report; Also possibly send second RLF indication to the eNB2 that UE initiates to rebuild; Perhaps, that is, should carry out the base station eNB 1 transmission second RLF indication that parameter adjustment is optimized to the problem base station.

Wherein, to be eNB3 send second RLF indication to eNB0 to Figure 16, and eNB1 receives time that subtracts the counting indication that eNB0 sends flow chart within its this statistics adjustment cycle; To be eNB3 send second RLFindication to eNB0 to Figure 17, and eNB1 receives time that subtracts the counting indication that eNB0 sends flow chart within its this statistics adjustment cycle.

Please with reference to Figure 16, this flow process comprises:

Step 1601:UE successfully switches to eNB0 from eNB1;

RLF takes place in step 1602:UE after the eNB0 short stay;

Certain sub-district that step 1603:UE chooses under the eNB2 rebuilds request;

Step 1604:eNB2 has refused the reconstruction request of UE;

Step 1605:eNB2 sends the RLF indication that article one does not comprise RLF report to eNB0;

Step 1606:eNB0 lateral root is judged as to the time span that RLF takes place according to handover success last time and switches to wrong cell, then eNB0 to eNB1 send handover report so that under the problem cells base station eNB 1 add up and switch to wrong cell once;

Wherein, Rebuild the back transmission because this RLF indication carries out RRC at UE, and do not have RLF report among this RLF indication, therefore; Acquiescence is because the switching that the handoff parameter problem causes is too early in the present embodiment; Because eNB0 is not the problem base station, then this eNB0 sends Handover report to problem base station eNB 1, indicates this eNB1 will switch too early statistics number increase once again.

Step 1607:eNB1 increase switches to the wrong cell statistics number once;

Step 1608:UE initiates new RRC at eNB3 and sets up;

Step 1609:eNB3 sends the second RLF indication that has RLF report to eNB0 through X2 or S1.

Step 1610:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can send to subtract to eNB1 and count indication perhaps, be left intact to switching to the wrong cell statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, this step and step 1010 are similar, repeat no more at this.

Step 1611:eNB1 carries out handled according to the counting indication that subtracts that receives, and in the present embodiment, is to subtract 1 with switching to the wrong cell statistics number.

Wherein, this step and step 1011 are similar, repeat no more at this.

Please with reference to Figure 17, this flow process comprises:

Step 1701-1710 can repeat no more at this with reference to step 1601-1610 in embodiment illustrated in fig. 16;

Step 1711:eNB1 carries out handled according to the counting indication that subtracts that receives.

In the present embodiment, can be left intact to switching to the wrong cell statistics number, the statistics number that also is about to definite unusual switching type remains unchanged.

This step and step 1111 are similar, repeat no more at this.

Figure 16 and embodiment illustrated in fig. 17 in; With Fig. 6 and embodiment illustrated in fig. 7 similar; ENB3 also can send to eNB2 with RLFindication, and it still is to the indication of eNB1 transmission subtracting counting that eNB2 confirms to be left intact according to the sign among this RLF indication, makes problem base station eNB 1 according to receiving that this subtracts counting and whether adds up within the adjustment cycle its this instruction time; Decision will switch to the wrong cell statistics number and add 1, still be left intact.The processing procedure of this embodiment and Fig. 6, Fig. 7 embodiment is similar, repeats no more at this.

Figure 16 and embodiment illustrated in fig. 17 in; With Figure 12 and embodiment illustrated in fig. 13 similar, eNB3 also can send to problem base station eNB 1 with RLFindication, and whether eNB1 adds up within the adjustment cycle to determine how to handle its this according to the time that receives this RLF indication; For example; If the time that eNB1 receives this RLF indication then confirms according to the RLF report among the RLF indication whether the Radio Link Failure reason is the handoff parameter problem of acquiescence, if then be left intact within its this statistics adjustment cycle; If not, then will switch to the wrong cell statistics number and subtract 1; If the time that eNB1 receives this RLF indication within its this statistics adjustment cycle, then is not left intact.The processing procedure of this embodiment and Figure 12, Figure 13 embodiment is similar, repeats no more at this.

Figure 18-Figure 19 is the Another application scene that switches to wrong cell, and promptly UE switches to the failure that switches the eNB1 process from eNB0, and then, UE is reconstructed into eNB2 and is refused, and then UE initiates new RRC foundation to eNB3.Wherein, Figure 18 is that eNB3 sends second RLF indication to eNB0, and eNB0 receives the sketch map of time within this statistics adjustment cycle of this second RLF indication; To be eNB3 send second RLF indication to eNB0 to Figure 19, and the time that eNB0 receives this second RLF indication is the sketch map within this statistics adjustment cycle.

Please with reference to Figure 18, this flow process comprises:

Step 1801:UE switches to the failure that switches the eNB1 process from eNB0;

Certain sub-district that step 1802:UE chooses under the eNB2 rebuilds request;

Step 1803:eNB2 has refused the reconstruction request of UE;

Step 1804:eNB2 sends the RLF indication that article one does not comprise RLF report to eNB0;

Step 1805:eNB0 acquiescence Radio Link Failure is former because the problem of handoff parameter; Be judged as unusual switching type according to article one RLF indication is to switch under the situation of wrong cell, and the statistics number that eNB0 switches to wrong cell according to the sign increase among article one RLF indication once.

Wherein, Because carrying out RRC at UE, RLF indication rebuilds the back transmission; And do not comprise RLF report among this RLF indication, so confirm that Radio Link Failure is former because the handoff parameter problem of acquiescence will switch to the wrong cell statistics number and add 1.

Step 1806:eNB0 initiates new RRC at eNB3 and sets up;

Step 1807:eNB3 sends the RLF indication that has RLF report to eNB0 through X2 or S1.

Step 1808:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, can subtract 1 perhaps with switching too early statistics number, be left intact to switching to the wrong cell statistics number, the statistics number that is about to definite unusual switching type remains unchanged.

Wherein, according to the sign of carrying among this second RLF indication, eNB0 confirms that this RLF indication initiates new RRC at UE to set up the back transmission.

In the present embodiment; The time of receiving RLF indication is before optimizing and revising a little; Then whether eNB0 further confirms UE once by reestablishment rejected mistake according to the sign of carrying among this second RLF indication again, in the present embodiment, confirms that UE is once by reestablishment rejected mistake; Article one RLF indication was also promptly arranged before; Then eNB0 judges that according to the RLF report among this RLF indication last time RLF was because handoff parameter problem or covering problem if be the handoff parameter problem really, show that then previous acquiescence statistics is that any processing is done in correct need not; If covering problem shows that then previous acquiescence statistics is wrong, eNB0 deducts once from switch to the wrong cell statistics number.

Please with reference to Figure 19, this flow process comprises:

Step 1901-1907: 1801-1807 is identical with step, repeats no more at this;

Step 1908:eNB0 carries out handled according to the second RLF indication that receives.

In the present embodiment, eNB0 receives that the time of second RLF indication is after optimizing and revising a little, and to optimize and revise the cycle invalid to current then to show this notice, need not to respond this notification message, and eNB0 does not do any adjustment to statistics number.

Figure 18 and embodiment illustrated in fig. 19 in; With Fig. 6 and embodiment illustrated in fig. 7 similar; ENB3 also can send to eNB1 or eNB2 with second RLF indication; It still is to send to eNB0 to subtract the counting indication that eNB1 or eNB2 confirm to be left intact according to the sign among this second RLF indication; Make problem base station eNB 0 according to receiving that this subtracts counting and whether adds up within the adjustment cycle its this instruction time, decision will switch to the wrong cell statistics number and add 1, still be left intact.The processing procedure of this embodiment and Fig. 6, Fig. 7 embodiment is similar, repeats no more at this.

Figure 18 and embodiment illustrated in fig. 19 in; With Figure 12 and embodiment illustrated in fig. 13 similar; ENB3 also can send to problem base station eNB 0 with second RLF indication; Whether eNB0 determine how to handle according to the time that receives this second RLF indication within its this statistics adjustment cycle, for example, if eNB0 receives that the time of this second RLF indication adds up within the adjustment cycle its this; Then confirm according to the RLF report among the second RLF indication whether the Radio Link Failure reason is the handoff parameter problem of acquiescence; If then be left intact, if not, then will switch to the wrong cell statistics number and subtract 1; If the time that eNB0 receives this second RLF indication within its this statistics adjustment cycle, then is not left intact.The processing procedure of this embodiment and Figure 12, Figure 13 embodiment is similar, repeats no more at this.

Method through the embodiment of the invention provides can reduce too much information stores of base station side and stand-by period satisfying under the prerequisite that can correctly distinguish statistics handoff parameter problem and covering leak problem.

A kind of Radio Link Failure that Figure 20 provides for the embodiment of the invention is indicated the composition frame chart of the processing unit of (RLF indication), and this device can be contained in the base station, and please with reference to Figure 20, this device comprises:

First receiving element 2001 is used to receive RLF indication;

First confirms unit 2002, is used for confirming according to first sign that said RLF indication carries the transmission opportunity of said RLFindication;

First processing unit 2003; Be used for carrying out RRC at UE and rebuild the back transmission at said RLF indication; And when not comprising RLF report among the said RLF indication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said RLF indication.

In one embodiment, first processing unit 2003 specifically is used for: directly will add 1 according to the statistics number of the definite unusual switching type of said RLF indication; Perhaps send handover report, indicate said problem base station to add 1 according to the statistics number of the definite unusual switching type of said RLF indication to the problem base station that causes Radio Link Failure.

In one embodiment, this device can also comprise:

Second confirms unit 2004; Being used at said RLF indication is to carry out new RRC at UE to set up the back transmission; And when comprising RLF report among the said RLF indication, confirm that according to second sign of carrying among the said RLF indication whether UE is by reestablishment rejected mistake.

Second processing unit 2005; Be used for confirming that in said second definite unit UE is by reestablishment rejected out-of-date; Confirm the Radio Link Failure reason according to said RLFreport, if the former because handoff parameter problem of said Radio Link Failure remains unchanged the statistics number of the unusual switching type of confirming; If said Radio Link Failure reason is not the handoff parameter problem, will subtract 1 according to the statistics number of the definite unusual switching type of said RLFindication.

Wherein, said first sign and second is designated same sign or different identification.

In one embodiment; Second processing unit 2005 specifically is used for when said Radio Link Failure reason is not the handoff parameter problem; Send and subtract the counting indication to the statistics number of the unusual switching type that will the confirm problem base station that remains unchanged, indicate the statistics number of the unusual switching type that said problem base station will confirm according to said RLF indication subtract 1.

The 3rd processing unit 2006; Be used for confirming that in said second definite unit UE is not by reestablishment rejected out-of-date; Confirm the Radio Link Failure reason according to said RLF report; The handoff parameter problem if said Radio Link Failure is former, the statistics number of the unusual switching type that said RLFindication is corresponding adds 1; If said Radio Link Failure reason is not the handoff parameter problem, the statistics number of the unusual switching type of confirming is remained unchanged.

In one embodiment, this device can also comprise:

The 3rd confirms unit 2007; Whether the time that is used to confirm to receive said RLF indication is within this statistics adjustment cycle; If the time that receives said RLF indication is within this statistics adjustment cycle the time, confirm that through said second the unit confirms that according to second sign of carrying among the said RLF indication whether UE is by reestablishment rejected mistake; If the time that receives said RLF indication is within this statistics adjustment cycle the time, the statistics number of the unusual switching type of confirming is remained unchanged.

In the present embodiment, the 3rd confirms that unit 2007 can comprise:

First comparison module 20071 is used for the time span with the UE timer of said RLF report record, and this locality calculate preceding add up once that time span compares the adjustment time from receiving said RLF indication to nearest;

First determination module 20072; The time span that is used for comparative result at said first comparison module and is said UE timer record is during less than the said local time span of calculating, and the time of confirming to receive said RLF indication is within this statistics adjustment cycle; The time span that is used for comparative result at said comparison module and is said UE timer record is during greater than the said local time span of calculating, and the time of confirming to receive said RLF indication is within this statistics adjustment cycle;

In one embodiment, this device can also comprise:

Second receiving element 2008 is used for after the statistics number of the unusual switching type that said first processing unit will be confirmed according to said RLF indication adds 1, receives the counting that subtracts that sends RRC reconstructed object base station and indicates;

The 4th confirms unit 2009, is used for confirming that said second receiving element receives the said time that subtracts the counting indication whether within this statistics adjustment cycle;

The manages unit 2010 everywhere, is used for confirming that the said the 4th the unit confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle the time, subtracts 1 with said statistics number; Confirm that the said the 4th the unit confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle, the statistics number of the unusual switching type of confirming is remained unchanged.

In the present embodiment, manage unit 2010 everywhere and can comprise:

Second comparison module 20101, with the said time span that subtracts the UE timer record in the counting indication, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving the said counting that subtracts;

Second determination module 20102; The time span that is used for comparative result at said second comparison module and is said UE timer record confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle during less than the said local time span of calculating; At the comparative result of said second comparison module is the time span of said UE timer record during greater than the said local time span of calculating, and confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle;

Each part of the device of the embodiment of the invention is respectively applied for each step that realizes earlier figures 1, method embodiment illustrated in fig. 2 since Fig. 1, embodiment illustrated in fig. 2 in, each step is specified, repeat no more at this.

Device through the embodiment of the invention provides can reduce too much information stores of base station side and stand-by period satisfying under the prerequisite that can correctly distinguish statistics handoff parameter problem and covering leak problem.

A kind of Radio Link Failure that Figure 21 provides for the embodiment of the invention is indicated the composition frame chart of the processing unit of (RLF indication), and please with reference to Figure 21, this device comprises:

First receiving element 211 is used to receive the base station that RLF takes place and is receiving the handover report of sending behind the RLF indication;

First processing unit 212 is used for the handover report that receives according to said first receiving element, and the statistics number of the unusual switching type of indicating in the handover report is added 1.

In one embodiment, this device can also comprise:

Second receiving element 213 is used for the handover report that receives according to said first receiving element at said first processing unit, and the statistics number of the unusual switching type of indicating in the handover report is added after 1, and what receive that base station that RLF takes place sends subtracts the counting indication;

Confirm unit 214, be used for confirming that said second receiving element receives the said time that subtracts the counting indication whether within this statistics adjustment cycle;

Second processing unit 215 is used for confirming in said definite unit that said second receiving element receives the said time that subtracts counting indication within this statistics adjustment cycle the time, and said statistics number is subtracted 1; Confirm that in said definite unit said second receiving element receives the said time that subtracts counting indication within this statistics adjustment cycle the time, the statistics number of the unusual switching type of confirming is remained unchanged.

In one embodiment, confirm that unit 214 can comprise:

Comparison module 2141; The time span of the UE timer record that subtracts counting indication that is used for said second receiving element is received, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving the said counting that subtracts;

Determination module 2142; The time span that is used for comparative result at said comparison module and is said UE timer record confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle during less than the said local time span of calculating; At the comparative result of said comparison module is the time span of said UE timer record during greater than the said local time span of calculating, and confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle;

Each part of the device of present embodiment is respectively applied for each step that realizes aforementioned method embodiment illustrated in fig. 3, because in the embodiment shown in fig. 3, each step is specified, and repeats no more at this.

The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can be directly with the software modules of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.

Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. the processing method of Radio Link Failure indication is characterized in that said method comprises:

The indication of reception Radio Link Failure;

Confirm the transmission opportunity of said Radio Link Failure indication according to first sign of carrying in the said Radio Link Failure indication;

If carrying out radio resource control RRC in terminal UE, said Radio Link Failure indication rebuilds the back transmission; And do not comprise the Radio Link Failure report in the said Radio Link Failure indication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

2. method according to claim 1 is characterized in that, the statistics number of the said unusual switching type that will confirm according to the indication of said Radio Link Failure add 1, comprise:

Directly will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication; Perhaps

Send handover report to the problem base station that causes Radio Link Failure, indicate said problem base station to add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

3. method according to claim 1 is characterized in that, if the indication of said Radio Link Failure is to carry out new RRC at UE to set up the back transmission, and comprises the Radio Link Failure report in the indication of said Radio Link Failure, and then said method also comprises:

Confirm that according to second sign of carrying in the said Radio Link Failure indication whether UE is by reestablishment rejected mistake;

If confirm UE, confirm the Radio Link Failure reason according to said Radio Link Failure report by reestablishment rejected mistake;

If the former because handoff parameter problem of said Radio Link Failure remains unchanged the statistics number of the unusual switching type of confirming;

If said Radio Link Failure reason is not the handoff parameter problem, will subtract 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication;

4. method according to claim 3 is characterized in that, if confirm UE not by reestablishment rejected mistake, confirms the Radio Link Failure reason according to said Radio Link Failure report;

The handoff parameter problem if said Radio Link Failure is former, the statistics number of the unusual switching type that said Radio Link Failure indication is corresponding adds 1;

If said Radio Link Failure reason is not the handoff parameter problem, the statistics number of the unusual switching type of confirming is remained unchanged.

5. method according to claim 3 is characterized in that, whether confirms UE by before the reestablishment rejected mistake according to second sign of carrying in the said Radio Link Failure indication, and said method also comprises:

Whether the time of confirming to receive said Radio Link Failure indication is within this statistics adjustment cycle;

If the time that receives said Radio Link Failure indication confirms that according to second sign of carrying in the said Radio Link Failure indication whether UE is by reestablishment rejected mistake within this statistics adjustment cycle;

If the time that receives the indication of said Radio Link Failure within this statistics adjustment cycle, remains unchanged the statistics number of the unusual switching type of confirming.

6. method according to claim 5 is characterized in that, whether the time of confirming to receive said Radio Link Failure indication within this statistics adjustment cycle, specifically comprises:

With the time span of the UE timer record in the report of said Radio Link Failure, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving said Radio Link Failure;

If the time span of said UE timer record, is confirmed as the time that receives said Radio Link Failure indication less than the said local time span of calculating and is added up within adjustment cycle at this;

If the time span of said UE timer record, is confirmed as the time that receives said Radio Link Failure indication greater than the said local time span of calculating and is not added up within adjustment cycle at this;

Wherein, the zero-time of the time span of said UE timer record is: when Radio Link Failure RLF takes place in UE or UE initiate RRC when rebuilding request UE when getting into Idle state or UE rebuild when being refused; The concluding time of the time span of said UE timer record is: UE receive RRC when setting up successful response message or UE when RRC sets up that successfully transmission Radio Link Failure in back is reported.

7. method according to claim 3 is characterized in that, the statistics number of the said unusual switching type that will confirm according to the indication of said Radio Link Failure subtract 1, comprise:

To problem base station transmission the subtracting counting indication that causes Radio Link Failure, indicate said problem base station to subtract 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

8. method according to claim 1 is characterized in that, said will adding after 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication, said method also comprises:

If what receive that RRC reconstructed object base station sends subtracts the counting indication, confirm to receive that the said time that subtracts the counting indication is whether within this statistics adjustment cycle;

Within this statistics adjustment cycle, said statistics number is subtracted 1 if receive the said time that subtracts the counting indication;

If receive the said time that subtracts counting indication within this statistics adjustment cycle, the statistics number of the unusual switching type of confirming is remained unchanged.

9. method according to claim 8 is characterized in that, confirms to receive that the said time that subtracts the counting indication whether within this statistics adjustment cycle, comprising:

With the said time span that subtracts the UE timer record in the counting indication, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving the said counting that subtracts;

If less than the said local time span of calculating, confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication within this statistics adjustment cycle;

If greater than the said local time span of calculating, confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication not within this statistics adjustment cycle;

Wherein, the zero-time of the time span of said UE timer record is: when RLF takes place in UE or UE initiate RRC when rebuilding request UE when getting into Idle state or UE rebuild when being refused; The concluding time of the time span of said UE timer record is: UE receive RRC when setting up successful response message or UE when RRC sets up that successfully transmission Radio Link Failure in back is reported.

10. the processing unit of Radio Link Failure indication is characterized in that said device comprises:

First receiving element is used to receive the Radio Link Failure indication;

First confirms the unit, is used for confirming according to first sign that said Radio Link Failure indication is carried the transmission opportunity of said Radio Link Failure indication;

First processing unit; Be used for carrying out RRC at UE and rebuild the back transmission in said Radio Link Failure indication; And when not comprising the Radio Link Failure report in the said Radio Link Failure indication; Confirm that Radio Link Failure is former because the handoff parameter problem will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

11. device according to claim 10 is characterized in that, said first processing unit specifically is used for: directly will add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication; Perhaps send handover report, indicate said problem base station to add 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication to the problem base station that causes Radio Link Failure.

12. device according to claim 10 is characterized in that, said device also comprises:

Second confirms the unit; Being used in said Radio Link Failure indication is to carry out new RRC at UE to set up the back transmission; And when comprising the Radio Link Failure report in the said Radio Link Failure indication, confirm that according to second sign of carrying in the said Radio Link Failure indication whether UE is by reestablishment rejected mistake;

Second processing unit; Be used for confirming that in said second definite unit UE is by reestablishment rejected out-of-date; Confirm the Radio Link Failure reason according to said Radio Link Failure report; If the former because handoff parameter problem of said Radio Link Failure remains unchanged the statistics number of the unusual switching type of confirming; If said Radio Link Failure reason is not the handoff parameter problem, will subtract 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication;

13. device according to claim 12 is characterized in that, said device also comprises:

The 3rd processing unit; Be used for confirming that in said second definite unit UE is not by reestablishment rejected out-of-date; Confirm the Radio Link Failure reason according to said Radio Link Failure report; The handoff parameter problem if said Radio Link Failure is former, the statistics number of the unusual switching type that said Radio Link Failure indication is corresponding adds 1; If said Radio Link Failure reason is not the handoff parameter problem, the statistics number of the unusual switching type of confirming is remained unchanged.

14. device according to claim 12 is characterized in that, said device also comprises:

The 3rd confirms the unit; Whether the time that is used to confirm to receive said Radio Link Failure indication is within this statistics adjustment cycle; If the time that receives the indication of said Radio Link Failure is within this statistics adjustment cycle the time, confirm that through said second the unit confirms that according to second sign of carrying in the said Radio Link Failure indication whether UE is by reestablishment rejected mistake; If the time that receives the indication of said Radio Link Failure is within this statistics adjustment cycle the time, the statistics number of the unusual switching type of confirming is remained unchanged.

15. device according to claim 14 is characterized in that, the said the 3rd confirms that the unit comprises:

First comparison module is used for the time span with the UE timer record of said Radio Link Failure report, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving said Radio Link Failure;

First determination module; The time span that is used for comparative result at said first comparison module and is said UE timer record is during less than the said local time span of calculating, and the time of confirming to receive said Radio Link Failure indication is within this statistics adjustment cycle; The time span that is used for comparative result at said comparison module and is said UE timer record is during greater than the said local time span of calculating, and the time of confirming to receive said Radio Link Failure indication is within this statistics adjustment cycle;

16. device according to claim 12; It is characterized in that; Said second processing unit specifically is used for when said Radio Link Failure reason is not the handoff parameter problem; To problem base station transmission the subtracting counting indication that causes Radio Link Failure, indicate said problem base station to subtract 1 according to the statistics number of the definite unusual switching type of said Radio Link Failure indication.

17. device according to claim 10 is characterized in that, said device also comprises:

Second receiving element is used for after the statistics number of the unusual switching type that said first processing unit will be confirmed according to said Radio Link Failure indication adds 1, receiving subtracting of RRC reconstructed object base station transmission and counting indication;

The 4th confirms the unit, is used for confirming that said second receiving element receives the said time that subtracts the counting indication whether within this statistics adjustment cycle;

The manages the unit everywhere, is used for confirming that the said the 4th the unit confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle the time, subtracts 1 with said statistics number; Confirm that the said the 4th the unit confirms that said second receiving element receives the said time that subtracts the counting indication not within this statistics adjustment cycle the time, the statistics number of the unusual switching type of confirming is remained unchanged.

18. device according to claim 17 is characterized in that, the said the 4th confirms that the unit comprises:

Second comparison module, with the said time span that subtracts the UE timer record in the counting indication, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving the said counting that subtracts;

Second determination module; The time span that is used for comparative result at said second comparison module and is said UE timer record confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle during less than the said local time span of calculating; At the comparative result of said second comparison module is the time span of said UE timer record during greater than the said local time span of calculating, and confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle;

19. the processing method of a Radio Link Failure indication is characterized in that said method comprises:

Receive the base station that RLF takes place and receiving the handover report that send Radio Link Failure indication back;

According to said handover report the statistics number of the unusual switching type of indicating in the handover report is added 1.

20. method according to claim 19 is characterized in that, adds after 1 according to the statistics number of said handover report with the unusual switching type of indicating in the handover report, said method also comprises:

The counting that subtracts that receives the base station transmission that RLF takes place is indicated;

Whether confirm to receive the said time that subtracts the counting indication adds up within adjustment cycle at this;

If receive the said time that subtracts the counting indication within this statistics adjustment cycle, said statistics number subtracted 1;

21. whether method according to claim 20 is characterized in that, confirm to receive the said time that subtracts the counting indication and add up within adjustment cycle at this, comprising:

If less than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication within this statistics adjustment cycle;

If greater than the said local time span of calculating, then confirming as, the time span of said UE timer record receives the said time that subtracts the counting indication not within this statistics adjustment cycle;

22. the processing unit of a Radio Link Failure indication is characterized in that said device comprises:

First receiving element is used to receive the base station that RLF takes place and is receiving the handover report that send Radio Link Failure indication back;

First processing unit is used for the handover report that receives according to said first receiving element, and the statistics number of the unusual switching type of indicating in the handover report is added 1.

23. device according to claim 22 is characterized in that, said device also comprises:

Second receiving element is used for the handover report that receives according to said first receiving element at said processing unit, and the statistics number of the unusual switching type of indicating in the handover report is added after 1, and what receive that base station that RLF takes place sends subtracts the counting indication;

Confirm the unit, be used for confirming that said second receiving element receives the said time that subtracts the counting indication whether within this statistics adjustment cycle;

Second processing unit is used for confirming in said definite unit that said second receiving element receives the said time that subtracts counting indication within this statistics adjustment cycle the time, and said statistics number is subtracted 1; Confirm that in said definite unit said second receiving element receives the said time that subtracts counting indication within this statistics adjustment cycle the time, the statistics number of the unusual switching type of confirming is remained unchanged.

24. device according to claim 23 is characterized in that, said definite unit comprises:

Comparison module, the time span of the UE timer record that subtracts counting indication that is used for said second receiving element is received, and this locality calculate be indicated to and nearest precedingly add up once that time span compares between the adjustment time from receiving the said counting that subtracts;

Determination module; The time span that is used for comparative result at said comparison module and is said UE timer record confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle during less than the said local time span of calculating; At the comparative result of said comparison module is the time span of said UE timer record during greater than the said local time span of calculating, and confirms that said second receiving element receives the said time that subtracts the counting indication within this statistics adjustment cycle;