Embodiment
The technical scheme that the embodiment of the invention provides is, by rebuilding the base station according to the reconstruction reason that comprises in the RRC connection reconstruction request message from subscriber equipment that receives, the switching problem of decision problem base station correspondence, this problem base station are subscriber equipment generation Radio Link Failure or switch the base station of accepting the Serving cell place of service before.
Particularly, after UE detects RLF, can attempt initiating RRC connection reconstruction process in order to keep connection, this process comprises, UE at first carries out the residential quarter and selects, and preferentially selects E-UTRAN (Evolved Universal Terrestrial Radio Access, the general land wireless network of evolution) residential quarter as rebuilding the residential quarter, if there is not qualified E-UTRAN residential quarter, also can select the residential quarter of other wireless standard systems as rebuilding the residential quarter; When UE selects the E-UTRAN residential quarter as the reconstruction residential quarter, send RRC connection reconstruction request message to rebuilding the residential quarter, have only when this reconstruction residential quarter is a ready residential quarter (namely the contextual information of UE is preserved in this residential quarter), the reconstruction request of UE just can be accepted in this reconstruction residential quarter, and to UE transmission RRC reconstruction message, RRC connection reconstruction process just can be successful; If this reconstruction residential quarter is not ready residential quarter (namely this residential quarter does not have the contextual information of UE), then refuse the reconstruction request of UE.
The embodiment of the invention increases by 4 kinds and rebuilds reasons in RRC connection reconstruction request message, comprise that switching condition in the Preset Time that has sent in the Preset Time before the RLF before measurement report, the RLF has satisfied but do not send handover success and RLF in the Preset Time before measurement report, the RLF.The value of above-mentioned Preset Time can be by O﹠amp; M (Operation ﹠amp; Maintenance, operation and maintenance) system configuration, in system information of subdistricts, broadcast the value of this Preset Time to UE by the base station, perhaps the value that transmits this Preset Time in the down-run survey control message of special use is given UE, the concrete value of this Preset Time can determine that also rule of thumb value, drive test or system emulation obtain by specific implementation.
After the reconstruction base station receives RRC connection reconstruction request message, judging switching problem by the detailed reconstruction reason in this message was to switch late or switch too early, yet, above-mentioned switching problem may not belong to current base station, but the base station at place, RLF residential quarter or the base station at the place, cell-of-origin before the switching take place, therefore, switching problem need be notified the problem base station, this problem base station is subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.Because in present standard agreement, comprised the physical layer identifications that the residential quarter of RLF takes place in the RRC connection reconstruction request message, therefore, rebuild the problem base station that the base station can search out this place, residential quarter by this physical layer identifications, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the switching problem notice problem base station that there is the problem base station in the base station by the X2/S1 interface; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuild the base station and can notify O﹠amp by the operational administrative interface with the switching problem that exists in the problem base station; The M system.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As shown in Figure 1, a kind of method flow diagram that detects switching problem in the embodiment of the invention one may further comprise the steps:
Step 101 is rebuild the base station reception from the RRC connection reconstruction request message of subscriber equipment, comprises the reconstruction reason in this RRC connection reconstruction request message.
Particularly, after RLF takes place in the residential quarter at subscriber equipment place, can send RRC connection reconstruction request message to the reconstruction base station at the place of selecting, reconstruction residential quarter, request is rebuild RRC with the reconstruction residential quarter and is connected.Comprise the reconstruction reason in the above-mentioned RRC connection reconstruction request message, this reconstruction reason comprises that switching condition in the Preset Time that has sent in the Preset Time before the RLF before measurement report, the RLF has satisfied but do not send any one in the handover success and RLF in the Preset Time before measurement report, the RLF, and the value of above-mentioned Preset Time can be by O﹠amp; The M system configuration is broadcasted the value of this Preset Time by the base station to UE in system information of subdistricts, perhaps transmit the value of this Preset Time and give UE in the down-run survey control message of special use.
Step 102, rebuild the base station according to the reconstruction reason in the RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and this problem base station is subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
Wherein, the switching problem of problem base station correspondence comprised switching late or switched too early, switching condition has satisfied but when not sending measurement report and RLF in the Preset Time before having sent measurement report, RLF in the Preset Time before the former because RLF of the reconstruction in the RRC connection reconstruction request message, rebuilding the switching problem that the base station can decision problem base station correspondence be slow switching, when in the Preset Time before the former because RLF of the reconstruction in the RRC connection reconstruction request message during handover success, rebuilding the switching problem that the base station can decision problem base station correspondence be switching too early.
After the switching problem of reconstruction decision problem base station, base station correspondence and problem base station are not same base station with the reconstruction base station, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the switching problem notice problem base station that there is the problem base station in the base station by the X2/S1 interface; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuild the base station and can notify O﹠amp by the operational administrative interface with the switching problem that exists in the problem base station; The M system.
The technical scheme of the embodiment of the invention has the following advantages, because in existing RRC reconstruction request message, increased concrete reconstruction reason, and rebuild the switching problem that reason decision problem base station exists according to this, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
As shown in Figure 2, a kind of method flow diagram that detects switching problem in the embodiment of the invention two may further comprise the steps:
Step 201, UE resides among the residential quarter A of problem base station, and the signal that measures residential quarter B satisfies switching condition, and sends the out-hole run report to the base station at A place, residential quarter.
Step 202, UE receives that RLF takes place before the switching command of network.
Particularly, receive that at UE before the switching command of network, the radio link quality of UE is severe exacerbation, and cause RLF.
Step 203, UE selects residential quarter B as the reconstruction residential quarter, and sends RRC connection reconstruction request message to the reconstruction base station at B place, residential quarter, and the reconstruction that comprises in this request message is former because sent measurement report in the Preset Time before the RLF.
Wherein, the physical layer identifications (PCI_A) that also comprises residential quarter A in the RRC connection reconstruction request message.
Step 204 is rebuild the base station according to the reconstruction reason in the RRC connection reconstruction request message, and the type of the switching problem that the decision problem base station exists was to switch late.
Particularly, after the reconstruction base station receives RRC connection reconstruction request message, judge UE by the reconstruction reason that comprises in this message and in the A of residential quarter, just triggered to measure and report, but also do not have enough time to switch just to have lost Radio Link, mean that there was slow switching problem in the problem base station.
Step 205 is rebuild the decision entity that the handoff parameter of the type notification problem base station of the switching problem of problem base station existence is adjusted in the base station.
Particularly, rebuild the problem base station that the base station can be addressed to A place, residential quarter according to the physical layer identifications PCI_A of the residential quarter A that comprises in the RRC connection reconstruction request message, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the base station and send message to the problem base station by the X2/S1 interface, comprise the type (namely cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of residential quarter A in this message; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuilding the base station can be by the operational administrative interface to O﹠amp; The M system sends a notification message, and comprises the type (namely cross late and switch) of the switching problem that the physical layer identifications of residential quarter A, the CGI of residential quarter A (Cell GlobalIdentity, residential quarter globally unique identifier) and problem base station exist in this notification message.
Step 206, the decision entity that the handoff parameter of problem base station is adjusted is adjusted the handoff parameter of residential quarter A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of residential quarter A after having understood the type of the switching problem that exists, and switches the RLF that causes late to reduce.
Need to prove that the inventive method can be adjusted each step order according to actual needs.
The technical scheme of the embodiment of the invention has the following advantages, it is former because sent measurement report in the Preset Time before the RLF according to the concrete reconstruction that RRC rebuilds in the request message to rebuild the base station, the switching problem that the decision problem base station exists was to switch late, reduced the information interaction between the base station, can not take the interface resource between the base station in a large number, strengthen systematic function.
As shown in Figure 3, a kind of method flow diagram that detects switching problem in the embodiment of the invention three may further comprise the steps:
Step 301, UE resides among the residential quarter A of problem base station, and the signal that measures residential quarter B satisfies switching condition, but does not report to the base station transmission out-hole run at A place, residential quarter.
Particularly, UE is in the DRX resting state when the signal that measures residential quarter B satisfies switching condition, and needs could send the out-hole run report to base station, A place, residential quarter after waiting for and entering the DRX state of activation.
Step 302, RLF takes place before sending the out-hole run report to base station, A place, residential quarter in UE.
Particularly, before UE reported to the base station transmission out-hole run at A place, residential quarter, the radio link quality of UE is severe exacerbation, and causes RLF.
Step 303, UE selects residential quarter B as rebuilding the residential quarter, and sends RRC connection reconstruction request message to the reconstruction base station at B place, residential quarter, and the reconstruction that comprises in this request message is former because switching condition satisfies but do not send measurement report in the Preset Time before the RLF.
Wherein, the physical layer identifications (PCI_A) that also comprises residential quarter A in the RRC connection reconstruction request message.
Step 304 is rebuild the base station according to the reconstruction reason in the RRC connection reconstruction request message, and the type of the switching problem that the decision problem base station exists was to switch late.
Particularly, after the reconstruction base station receives RRC connection reconstruction request message, judge the measurement of UE in the A of residential quarter by the reconstruction reason that comprises in this message and satisfied switching condition, just do not lost Radio Link but also have enough time to send the out-hole run report, meaned that there was slow switching problem in the problem base station.
Step 305 is rebuild the decision entity that the handoff parameter of the type notification problem base station of the switching problem of problem base station existence is adjusted in the base station.
Particularly, rebuild the problem base station that the base station can be addressed to A place, residential quarter according to the physical layer identifications PCI_A of the residential quarter A that comprises in the RRC connection reconstruction request message, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the base station and send message to the problem base station by the X2/S1 interface, comprise the type (namely cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of residential quarter A in this message; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuilding the base station can be by the operational administrative interface to O﹠amp; The M system sends a notification message, and comprises the type (namely cross late and switch) of the physical layer identifications of residential quarter A, the CGI of residential quarter A and the switching problem that the problem base station exists in this notification message.
Step 306, the decision entity that the handoff parameter of problem base station is adjusted is adjusted the handoff parameter of residential quarter A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of residential quarter A after understanding the type of the switching problem that exists, and switches the RLF that causes late to reduce.
Need to prove that the inventive method can be adjusted each step order according to actual needs.
The technical scheme of the embodiment of the invention has the following advantages, rebuilding the base station, to rebuild concrete reconstruction in the request message according to RRC former because switching condition satisfies but do not send measurement report in the Preset Time before the RLF, the switching problem that the decision problem base station exists was to switch late, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
As shown in Figure 4, may further comprise the steps for a kind of method flow diagram that detects switching problem in the embodiment of the invention four:
Step 401, UE resides among the residential quarter A of problem base station, the service of acceptance area A.
Step 402, RLF takes place in UE in the A of residential quarter.
Particularly, the radio link quality of UE runs down, and finally causes RLF, and preestablishing in the time before RLF takes place takes place without any event.
Step 403, UE selects residential quarter B as the reconstruction residential quarter, and sends RRC connection reconstruction request message to the reconstruction base station at B place, residential quarter, and the reconstruction that comprises in this request message is former because RLF.
Wherein, the physical layer identifications (PCI_A) that also comprises residential quarter A in the RRC connection reconstruction request message.
Step 404 is rebuild the base station according to the reconstruction reason in the RRC connection reconstruction request message, and the type of the switching problem that the decision problem base station exists was to switch late.
Particularly, after the reconstruction base station receives RRC connection reconstruction request message, judge UE by the reconstruction reason that comprises in this message and in the A of residential quarter, RLF takes place, but when rebuilding the RRC connection, do not select residential quarter A, but selected residential quarter B, the signal that residential quarter B is described has been better than residential quarter A, the RLF that UE takes place in the A of residential quarter causes owing to covering the cavity, but because arranging the not timely measurement report that triggers of the unreasonable UE of causing, handoff parameter just lost Radio Link, therefore, rebuild the base station and infer that there was slow switching problem in residential quarter A.
Step 405 is rebuild the decision entity that the handoff parameter of the type notification problem base station of the switching problem of problem base station existence is adjusted in the base station.
Particularly, rebuild the problem base station that the base station can be addressed to A place, residential quarter according to the physical layer identifications PCI_A of the residential quarter A that comprises in the RRC connection reconstruction request message, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the base station and send message to the problem base station by the X2/S1 interface, comprise the type (namely cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of residential quarter A in this message; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuilding the base station can be by the operational administrative interface to O﹠amp; The M system sends a notification message, and comprises the type (namely cross late and switch) of the physical layer identifications of residential quarter A, the CGI of residential quarter A and the switching problem that the problem base station exists in this notification message.
Step 406, the decision entity that the handoff parameter of problem base station is adjusted is adjusted the handoff parameter of residential quarter A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of residential quarter A after having understood the type of the switching problem that exists, and switches the RLF that causes late to reduce.
Need to prove that the inventive method can be adjusted each step order according to actual needs.
The technical scheme of the embodiment of the invention has the following advantages, it is former because RLF according to the concrete reconstruction that RRC rebuilds in the request message to rebuild the base station, the switching problem that the decision problem base station exists was to switch late, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
As shown in Figure 5, a kind of method flow diagram that detects switching problem in the embodiment of the invention five may further comprise the steps:
Step 501, UE resides among the A of residential quarter, and the signal that measures residential quarter B satisfies switching condition, and sends the out-hole run report to the base station at A place, residential quarter.
Step 502, UE receives the switching command of network, carries out to switch also successfully to be linked into residential quarter B.
Step 503, RLF takes place in UE in the B of residential quarter.
Particularly, after UE was linked into residential quarter B, the radio link quality of UE sharply worsened and causes RLF, and the moment that RLF takes place is finished the time that the time at intervals of switching sets in advance less than network apart from UE.
Step 504, UE selects residential quarter A as the reconstruction residential quarter, and sends RRC connection reconstruction request message to the base station at A place, residential quarter.
Wherein, the reconstruction that comprises in the RRC connection reconstruction request message is former in handover success in the Preset Time before the RLF, also comprises physical layer identifications PCI_B and the temporary mark C-RNTI_B of UE in the B of residential quarter of residential quarter B.
Step 505, the base station at A place, residential quarter judge that according to the reconstruction reason in the RRC connection reconstruction request message type of the switching problem that self exists is for switching too early.
Particularly, because UE is before the base station to A place, residential quarter sends RRC connection reconstruction request message, completed successfully residential quarter A to the switching of residential quarter B, the base station at A place, residential quarter does not discharge the context of UE when receiving RRC connection reconstruction request message, comprising residential quarter B in the context of UE is the resource information that UE prepares, and this resource information comprises the temporary mark C-RNTI_B among the residential quarter B of UE place.The base station at A place, residential quarter is by searching above-mentioned temporary mark, can know that UE switched to residential quarter B from residential quarter A before the base station to A place, residential quarter sends RRC connection reconstruction request message, and in the B of residential quarter RLF takes place, therefore, can judge the switching time of UE from residential quarter A to residential quarter B and incorrect, there is too early switching problem in the base station at A place, residential quarter.
Step 506, the type notification O﹠amp of the switching problem that there is self in the base station at A place, residential quarter; The M system.
Particularly, if the decision entity of the handoff parameter adjustment of the base station at A place, residential quarter is positioned at O﹠amp; In the M system, the base station at A place, residential quarter can be by the operational administrative interface to O﹠amp; The M system sends a notification message, and comprises the CGI of physical layer identifications, residential quarter A of residential quarter A and the type (i.e. switching too early) of the switching problem that self exists in this notification message.
Step 507, O﹠amp; The handoff parameter of residential quarter A is adjusted in M system or base station, A place, residential quarter.
Particularly, O﹠amp; The M system adjusts the handoff parameter of residential quarter A, to reduce the RLF that too early switching causes after obtaining the type of the switching problem that residential quarter A exists.
In addition, if the decision entity of the handoff parameter adjustment of the base station at A place, residential quarter is positioned at this base station, this base station is adjusted the handoff parameter of residential quarter A, to reduce the RLF that too early switching causes after obtaining the type of the switching problem that residential quarter A exists.
Need to prove that the inventive method can be adjusted each step order according to actual needs.
The technical scheme of the embodiment of the invention has the following advantages, it is former in handover success in the Preset Time before the RLF according to the concrete reconstruction that RRC rebuilds in the request message to rebuild the base station, judge that the switching problem that self exists is to switch too early, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
As shown in Figure 6, a kind of base station equipment structural representation in the embodiment of the invention six comprises:
Receiver module 610 is used for receiving the RRC connection reconstruction request message from subscriber equipment, comprises the reconstruction reason in this RRC connection reconstruction request message.
Wherein, the reconstruction reason that comprises in the RRC connection reconstruction request message that receiver module 610 receives comprises that switching condition in the Preset Time that has sent in the Preset Time before the RLF before measurement report, the RLF has satisfied but do not send any one in the handover success and RLF in the Preset Time before measurement report, the RLF, and the value of above-mentioned Preset Time can be by O﹠amp; The M system configuration is broadcasted the value of this Preset Time by the base station to UE in system information of subdistricts, perhaps transmit the value of this Preset Time and give UE in the down-run survey control message of special use.
Above-mentioned receiver module 610 is parts of being responsible in the above base station equipment receiving from the RRC connection reconstruction request message of subscriber equipment, can be software, hardware or both combinations.
Judge module 620, reconstruction reason for the RRC connection reconstruction request message that receives according to receiver module 610, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and this problem base station is subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
Above-mentioned judge module 620, concrete being used for rebuilding former because switching condition has satisfied but when not sending any one of measurement report and RLF, the switching problem of decision problem base station correspondence be slow switching in the Preset Time before having sent measurement report, RLF in the Preset Time before the RLF; Perhaps
Rebuilding former because in the Preset Time before the RLF during handover success, the switching problem of decision problem base station correspondence be switching too early.
Particularly, when rebuilding former because having sent measurement report in the Preset Time before the RLF, judge module 620 is judged subscriber equipment and has just been triggered to measure in the cell-of-origin of problem base station and report, but also do not have enough time to switch just to have lost Radio Link, mean that there was slow switching problem in the problem base station; Rebuilding former because switching condition satisfies but do not send measurement report in the Preset Time before the RLF, judge module 620 is judged the measurement of subscriber equipment in the cell-of-origin of problem base station and has been satisfied switching condition, just do not lost Radio Link but also have enough time to send the out-hole run report, meaned that there was slow switching problem in the problem base station; Rebuilding former because during RLF, judge module 620 is judged subscriber equipment and in the cell-of-origin of problem base station RLF is taken place, but when rebuilding the RRC connection, do not select the cell-of-origin, but selected the reconstruction residential quarter, illustrate that the signal of rebuilding the residential quarter has been better than the cell-of-origin, the RLF that UE takes place in the cell-of-origin causes owing to covering the cavity, but because arranging the unreasonable not timely measurement report that triggers of subscriber equipment that causes, handoff parameter just lost Radio Link, therefore, judge module 620 infers that there was slow switching problem in the cell-of-origin of problem base station;
Rebuilding former because in the Preset Time before the RLF during handover success, if receiving the reconstruction base station of RRC connection reconstruction request message is exactly the source base station before switching, rebuild the context that does not discharge subscriber equipment when base station (being source base station) receives RRC connection reconstruction request message, the sign that comprises the Target cell of switching in the context of subscriber equipment, and this Target cell is the resource information that subscriber equipment is prepared, and this resource information comprises the temporary mark of subscriber equipment in Target cell.Judge module 620 is by searching above-mentioned temporary mark, can know that RLF takes place subscriber equipment residential quarter is exactly the Target cell of the switching of preserving in the context, therefore, judge module 620 can be judged the switching time of subscriber equipment from the cell-of-origin to the Target cell and incorrect, and there is too early switching problem in source base station.
Above-mentioned judge module 620 is parts of being responsible for the switching problem of decision problem base station correspondence in the above base station equipment, can be software, hardware or both combinations.
Notification module 630, the decision entity that the handoff parameter of the switching problem notice problem base station that the problem base station that is used for that judge module 620 is judged exists is adjusted makes this decision entity adjust the handoff parameter of problem base station according to switching problem.
Particularly, owing to comprised the physical layer identifications that the residential quarter of RLF takes place in the RRC connection reconstruction request message, therefore, notification module 630 can search out the problem base station at this place, residential quarter by this physical layer identifications, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then notification module 630 is notified the problem base station by the X2/S1 interface with the switching problem that the problem base station exists; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, notification module 630 can be notified O﹠amp by the operational administrative interface with the switching problem that exists in the problem base station; The M system.
Above-mentioned notification module 630 is parts of the decision entity of the handoff parameter adjustment that the responsible switching problem that the problem base station is existed is notified the problem base station in the above base station equipment, can be software, hardware or both combinations.
The technical scheme of the embodiment of the invention has the following advantages, because in existing RRC reconstruction request message, increased concrete reconstruction reason, and rebuild the switching problem that reason decision problem base station exists according to this, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
As shown in Figure 7, a kind of system configuration schematic diagram that detects switching problem in the embodiment of the invention seven comprises:
Subscriber equipment 710 is used for sending RRC connection reconstruction request message to rebuilding base station 720, comprises the reconstruction reason in this RRC connection reconstruction request message.
Particularly, after subscriber equipment 710 detects RLF, can attempt initiating RRC connection reconstruction process in order to keep connection, this process comprises, UE at first carries out the residential quarter and selects, the preferential E-UTRAN of selection residential quarter is as rebuilding the residential quarter, if there is not qualified E-UTRAN residential quarter, also can select the residential quarter of other wireless standard systems as rebuilding the residential quarter; Subscriber equipment 710 sends RRC connection reconstruction request message to the reconstruction base station 720 that rebuilds the residential quarter correspondence, have only when this reconstruction residential quarter is a ready residential quarter (namely the contextual information of UE is preserved in this residential quarter), the reconstruction request of UE just can be accepted in this reconstruction residential quarter, and to UE transmission RRC reconstruction message, RRC connection reconstruction process just can be successful; If this reconstruction residential quarter is not ready residential quarter (namely this residential quarter does not have the contextual information of UE), then refuse the reconstruction request of UE.
In the Current Standard agreement, subscriber equipment 710 comprises the reconstruction reason in the RRC connection reconstruction request message of rebuilding base station 720 transmissions, defined reconstruction reason comprises reconfiguration failure (Reconfiguration Failure), handoff failure (Handover Failure) and other failures (Other Failure), wherein, the reconstruction reason that causes owing to RLF belongs to other failures (Other Failure).
The embodiment of the invention increases by 4 kinds and rebuilds reason in RRC connection reconstruction request message, comprise that switching condition in the Preset Time that has sent in the Preset Time before the RLF before measurement report, the RLF has satisfied but do not send any one in the handover success and RLF in the Preset Time before measurement report, the RLF, the value of above-mentioned Preset Time can be by O﹠amp; The M system configuration by base station value to subscriber equipment 710 these Preset Times of broadcasting in system information of subdistricts, perhaps transmits the value of this Preset Time and gives subscriber equipment 710 in the down-run survey control message of special use.
Rebuild base station 720, be used for receiving the RRC connection reconstruction request message from subscriber equipment 710, according to the reconstruction reason in this RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was switching late or switched too early that this problem base station was that subscriber equipment 710 Radio Link Failure takes place or switches the base station of accepting the Serving cell place of service before.
Particularly, rebuilding base station 720 is rebuilding former because switching condition has satisfied but when not sending among measurement report and the RLF any one, the switching problem of decision problem base station correspondence be slow switching in the Preset Time before having sent measurement report, RLF in the Preset Time before the RLF; Perhaps
Rebuilding former because in the Preset Time before the RLF during handover success, the switching problem of decision problem base station correspondence be switching too early.
Wherein, when rebuilding former because having sent measurement report in the Preset Time before the RLF, rebuilding base station 720 judges subscriber equipment 710 and has just triggered to measure in the cell-of-origin of problem base station and report, but also do not have enough time to switch just to have lost Radio Link, mean that there was slow switching problem in the problem base station; Rebuilding former because switching condition satisfies but do not send measurement report in the Preset Time before the RLF, reconstruction base station 720 is judged the measurement of subscriber equipment 710 in the cell-of-origin of problem base station and has been satisfied switching condition, just do not lost Radio Link but also have enough time to send the out-hole run report, meaned that there was slow switching problem in the problem base station; Rebuilding former because during RLF, reconstruction base station 720 is judged subscriber equipment 710 and in the cell-of-origin of problem base station RLF is taken place, but when rebuilding the RRC connection, do not select the cell-of-origin, but selected the reconstruction residential quarter, illustrate that the signal of rebuilding the residential quarter has been better than the cell-of-origin, the RLF that subscriber equipment 710 takes place in the cell-of-origin causes owing to covering the cavity, but because arranging the unreasonable not timely measurement report that triggers of subscriber equipment 710 that causes, handoff parameter just lost Radio Link, therefore, rebuild base station 720 and infer that there was slow switching problem in the cell-of-origin of problem base station;
Rebuilding former because in the Preset Time before the RLF during handover success, rebuild base station 720 and receive RRC connection reconstruction request message, and the cell-of-origin of switching is exactly the residential quarter that rebuilds base station 720, rebuild the context that does not discharge subscriber equipment 710 when base station 720 receives RRC connection reconstruction request message, the Target cell that comprises switching in the context of subscriber equipment 710 is the resource information that subscriber equipment 710 is prepared, and this resource information comprises the temporary mark of subscriber equipment 710 in Target cell.Rebuild base station 720 by searching above-mentioned temporary mark, can know that the residential quarter that RLF takes place subscriber equipment 710 is exactly the Target cell that switches, therefore, rebuild base station 720 and can judge the switching time of subscriber equipment 710 from the cell-of-origin to the Target cell and incorrect, rebuild base station 720 and have too early switching problem.
Above-mentioned reconstruction base station 720, the decision entity that the switching problem that is used for that also the problem base station is existed notifies the handoff parameter of problem base station to adjust makes this decision entity adjust the handoff parameter of problem base station according to switching problem.
Particularly, owing to comprised the physical layer identifications that the residential quarter of RLF takes place in the RRC connection reconstruction request message, therefore, rebuild the problem base station that base station 720 can search out this place, residential quarter by this physical layer identifications, if the decision entity of the handoff parameter adjustment of problem base station is positioned at the problem base station, then rebuild the switching problem notice problem base station that there is the problem base station in base station 720 by the X2/S1 interface; If the decision entity of the handoff parameter adjustment of problem base station is positioned at O﹠amp; In the M system, rebuild base station 720 and can notify O﹠amp by the operational administrative interface with the switching problem that exists in the problem base station; The M system.
The technical scheme of the embodiment of the invention has the following advantages, because in existing RRC reconstruction request message, increased concrete reconstruction reason, and rebuild the switching problem that reason decision problem base station exists according to this, reduced the information interaction between the base station, save the interface resource between the base station, strengthened systematic function.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of above-described embodiment can be integrated in one, and also can separate deployment, can merge into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number does not represent the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.