CN101931966A - Method, device and system for detecting switching problem - Google Patents
Method, device and system for detecting switching problem Download PDFInfo
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- CN101931966A CN101931966A CN2009100878123A CN200910087812A CN101931966A CN 101931966 A CN101931966 A CN 101931966A CN 2009100878123 A CN2009100878123 A CN 2009100878123A CN 200910087812 A CN200910087812 A CN 200910087812A CN 101931966 A CN101931966 A CN 101931966A
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Abstract
The embodiment of the invention discloses a method, a device and a system for detecting a switching problem. The method comprises the following steps that: a reconstructed base station receives a radio resource control (RRC) connection reconstruction request message from user equipment, wherein the RRC connection reconstruction request message carries reconstruction reasons; and the reconstructed base station determines the corresponding switching problem of an fault base station is switching too late or early according to the reconstruction reasons carried by the RRC connection reconstruction request message, wherein the fault base station refers to the base station of a service cells from which the user equipment receives services before a radio link fails or is switched. In the embodiment of the invention, the specific reconstruction reasons are loaded in the original RRC connection reconstruction request message, and the switching problem of the fault base station is determined according to the reconstruction reasons, the information interaction between base stations is reduced, the interface resources between base stations are saved and the system performance is enhanced.
Description
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of methods, devices and systems that detect switching problem.
Background technology
In mobile communications network, for the utilance that improves frequency spectrum resource and the capacity of whole system, the radio-frequency power with the base station is confined in the Serving cell usually.Owing to there is the influence of inevitable barrier and screen in the live network, can cause the signal quality of the Serving cell at subscriber equipment place constantly to worsen in the section sometime, if the signal quality of Serving cell can't take a turn for the better within a certain period of time, will finally cause conversation loss.
Because the conversation loss that causes of a variety of causes, network side can switch to the better quality of signal non-service cell from the Serving cell of signal quality deteriorates with subscriber equipment in order to reduce.Particularly, subscriber equipment can be measured the signal quality of non-service cell, and the handoff parameter that disposes according to network side judges whether to satisfy switching condition, satisfying under the situation of switching condition to Serving cell transmission measurement report, the sign that comprises the non-service cell that satisfies switching condition in this measurement report is used for requirement and switches to the better quality of signal non-service cell.
Yet, when the handoff parameter of network side configuration is unreasonable, can cause switching time improper, cause the generation of switching problem, can cause conversation loss equally.Switched late and switched too early because the unreasonable switching problem that causes of handoff parameter comprises, wherein, cross to switch late and be meant because handoff parameter is unreasonable and cause be delayed switching time, subscriber equipment does not in time switch to a better quality of signal sub-district, and original Serving cell signal constantly worsens the situation until call drop, and network side should earlier be carried out subscriber equipment and switch; After switching is meant that subscriber equipment switches to a new Target cell from original Serving cell prematurely too early, because the signal of the new Target cell that subscriber equipment receives is also unstable, cause taking place soon Radio Link Failure, subscriber equipment selects original Serving cell to rebuild the situation of wireless connections, subscriber equipment should postpone switching time, switches when the Target cell signal is stronger, more stable.
Present 3GPP (3rd Generation Partnership Project, third generation partner program) in the agreement, RLF (Radio Link Failure takes place at sub-district A in subscriber equipment, Radio Link Failure) after, rebuilding RRC (Radio Resource Control, Radio Resource control) at sub-district B connects.Base station, B place, sub-district sends the RLF report to base station, A place, sub-district, and slow problem was switched according to this report judgement existence in base station, A place, sub-district.
In addition, soon, RLF (may be because radio link quality is very poor) takes place in sub-district B after subscriber equipment switches to sub-district B from sub-district A, and subscriber equipment is rebuild RRC at sub-district A (being original Serving cell) and connected.Base station, A place, sub-district sends the RLF report to base station, B place, sub-district, after base station, B place, sub-district receives this report, check local information, if found before a very short time, base station, B place, sub-district once sent release UE (UserEquipment for this subscriber equipment to base station, A place, sub-district, subscriber equipment) contextual message (send this message be in the handoff procedure steps necessary), base station, B place, sub-district judge that subscriber equipment switches to own sub-district B from sub-district A behavior is switching too early.
The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:
In the prior art, after RLF takes place and is rebuilding the sub-district to rebuild the RRC connection in the Serving cell at UE place, the reconstruction base station that rebuilds the place, sub-district will send the RLF report to the base station that RLF takes place, and RRC connection reconstruction incident takes place at every turn, all will send a RLF report.When the handoff parameter of sub-district improper and when causing RLF, have more UE RRC connection reconstruction incident takes place, to send a large amount of RLF reports between the base station of reconstruction base station and generation RLF, can take the X2 interface resource between the base station, and X2 interface also needs to use for multiple function such as normal switching, data forwarding, Inter-Cell Interference Coordination and load balancing, a large amount of RLF report message can reduce the X2 interface service efficiency, are unfavorable for the raising of systematic function.
Summary of the invention
The embodiment of the invention provides a kind of methods, devices and systems that detect switching problem, has saved the interface resource between the base station, has strengthened systematic function.
The embodiment of the invention proposes a kind of method that detects switching problem, may further comprise the steps:
Rebuild the radio resource control RRC connection reconstruction request message of base station reception, comprise the reconstruction reason in the described RRC connection reconstruction request message from subscriber equipment;
Described reconstruction base station is according to the reconstruction reason in the described RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
Preferably, described reconstruction reason comprises any one in the following content:
Having sent switching condition in the Preset Time before measurement report, the RLF in the Preset Time before the Radio Link Failure RLF has satisfied but has not sent handover success and RLF in the Preset Time before measurement report, the RLF.
Preferably, described reconstruction base station is according to the reconstruction reason in the RRC connection reconstruction request message, and the switching problem of decision problem base station correspondence specifically comprises:
Sent in the Preset Time before the former because RLF of described reconstruction that switching condition in the Preset Time before measurement report, the RLF has satisfied but when not sending among measurement report and the RLF any one, described reconstruction base station judges that the switching problem of described problem base station correspondence be slow switching; Perhaps
During handover success, described reconstruction base station judges that the switching problem of described problem base station correspondence is for switching too early in the Preset Time before the former because RLF of described reconstruction.
Preferably, the value of described Preset Time is by operation and maintenance O﹠amp; The M system configuration, and by the base station in system information of subdistricts to subscriber equipment broadcasting, perhaps in the down-run survey control messages of special use, send subscriber equipment to.
Preferably, described reconstruction base station, also comprises after the switching problem of decision problem base station correspondence according to the reconstruction reason in the RRC connection reconstruction request message:
The decision entity that the switching problem that there is described problem base station in described reconstruction base station notifies the handoff parameter of described problem base station to adjust makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
The embodiment of the invention also proposes a kind of base station equipment, comprising:
Receiver module is used to receive the radio resource control RRC connection reconstruction request message from subscriber equipment, comprises the reconstruction reason in the described RRC connection reconstruction request message;
Judge module, the reconstruction reason that is used for the RRC connection reconstruction request message that receives according to described receiver module, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
Preferably, described judge module, switching condition has satisfied but when not sending any one of measurement report and RLF, the switching problem of judging described problem base station correspondence be slow switching in the Preset Time before specifically being used for having sent measurement report, RLF in the Preset Time before the former because RLF of described reconstruction; Perhaps
During handover success, the switching problem of judging described problem base station correspondence is for switching too early in the Preset Time before the former because RLF of described reconstruction.
Preferably, described base station equipment also comprises:
Notification module, the decision entity that the switching problem that the described problem base station that is used for that described judge module is judged exists notifies the handoff parameter of described problem base station to adjust makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
The embodiment of the invention also proposes a kind of system that detects switching problem, comprising:
Subscriber equipment is used for sending radio resource control RRC connection reconstruction request message to rebuilding the base station, comprises the reconstruction reason in the described RRC connection reconstruction request message;
Rebuild the base station, be used to receive RRC connection reconstruction request message from described subscriber equipment, according to the reconstruction reason in the described RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
Preferably, described reconstruction base station also is used for the decision entity of notifying the handoff parameter of described problem base station to adjust the switching problem that described problem base station exists, makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
Preferably, described reconstruction reason comprises any one in the following content:
Having sent switching condition in the Preset Time before measurement report, the RLF in the Preset Time before the Radio Link Failure RLF has satisfied but has not sent handover success and RLF in the Preset Time before measurement report, the RLF;
Described switching problem comprised switching late or switched too early.
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.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram that detects switching problem in the embodiment of the invention one;
Fig. 2 is a kind of method flow diagram that detects switching problem in the embodiment of the invention two;
Fig. 3 is a kind of method flow diagram that detects switching problem in the embodiment of the invention three;
Fig. 4 is a kind of method flow diagram that detects switching problem in the embodiment of the invention four;
Fig. 5 is a kind of method flow diagram that detects switching problem in the embodiment of the invention five;
Fig. 6 is a kind of base station equipment structural representation in the embodiment of the invention six;
Fig. 7 is a kind of system configuration schematic diagram that detects switching problem in the embodiment of the invention seven.
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 that receives from subscriber equipment, 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 cell selecting, preferentially selects E-UTRAN (EvolvedUniversal Terrestrial Radio Access, the general land wireless network of evolution) sub-district as rebuilding the sub-district, if there is not qualified E-UTRAN sub-district, the sub-district that also can select other wireless standard systems is as rebuilding the sub-district; When UE selects the E-UTRAN sub-district as the reconstruction sub-district, send RRC connection reconstruction request message to rebuilding the sub-district, have only when this reconstruction sub-district is a ready sub-district (promptly the contextual information of UE is preserved in this sub-district), the reconstruction request of UE just can be accepted in this reconstruction sub-district, and to UE transmission RRC reconstruction message, RRC connection reconstruction process just can be successful; If this reconstruction sub-district is not ready sub-district (promptly this sub-district 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 in the down-run survey control messages of special use, transmit the value of this Preset Time and give UE, the concrete value of this Preset Time can be by specific implementation decision, and also rule of thumb value, drive test or system emulation obtain.
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 sub-district 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 sub-district 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, sub-district 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 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 is obtained 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:
Particularly, after RLF takes place in the sub-district at subscriber equipment place, can send RRC connection reconstruction request message to the reconstruction base station at the place of selecting, reconstruction sub-district, request is rebuild RRC with the reconstruction sub-district 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 messages of special use.
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 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 sub-district A of problem base station, and the signal that measures sub-district B satisfies switching condition, and sends the out-hole run report to the base station at A place, sub-district.
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 sub-district B as the reconstruction sub-district, and sends RRC connection reconstruction request message to the reconstruction base station at B place, sub-district, 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 sub-district 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 sub-district, 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, sub-district according to the physical layer identifications PCI_A of the sub-district 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, comprise the type (promptly cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of sub-district A in this message 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, 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 (promptly cross late and switch) of the switching problem that the physical layer identifications of sub-district A, the CGI of sub-district A (Cell GlobalIdentity, sub-district 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 sub-district A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of sub-district 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 sequence of steps 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 sub-district A of problem base station, and the signal that measures sub-district B satisfies switching condition, but does not send the out-hole run report to the base station at A place, sub-district.
Particularly, UE is in the DRX resting state when the signal that measures sub-district B satisfies switching condition, and needs could send the out-hole run report to base station, A place, sub-district after waiting for and entering the DRX state of activation.
Step 302, RLF took place in UE before base station, A place, sub-district sends the out-hole run report.
Particularly, before the base station at A place, sub-district sent the out-hole run report, the radio link quality of UE is severe exacerbation, and causes RLF at UE.
Step 303, UE selects sub-district B as rebuilding the sub-district, and sends RRC connection reconstruction request message to the reconstruction base station at B place, sub-district, 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 sub-district 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 sub-district 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, sub-district according to the physical layer identifications PCI_A of the sub-district 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, comprise the type (promptly cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of sub-district A in this message 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, 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 (promptly cross late and switch) of the physical layer identifications of sub-district A, the CGI of sub-district 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 sub-district A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of sub-district 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 sequence of steps 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 sub-district A of problem base station, the service of acceptance area A.
Step 402, RLF takes place in UE in the A of sub-district.
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 incident.
Step 403, UE selects sub-district B as the reconstruction sub-district, and sends RRC connection reconstruction request message to the reconstruction base station at B place, sub-district, and the reconstruction that comprises in this request message is former because RLF.
Wherein, the physical layer identifications (PCI_A) that also comprises sub-district 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 sub-district, RLF takes place, but when rebuilding the RRC connection, do not select sub-district A, but selected sub-district B, the signal that sub-district B is described has been better than sub-district A, the RLF that UE takes place in the A of sub-district causes owing to covering the cavity, but, handoff parameter just lost Radio Link because being provided with the not timely triggering measurement report of the unreasonable UE of causing, therefore, rebuild the base station and infer that there was slow switching problem in sub-district 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, sub-district according to the physical layer identifications PCI_A of the sub-district 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, comprise the type (promptly cross late and switch) of physical layer identifications and the switching problem that the problem base station exists of sub-district A in this message 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, 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 (promptly cross late and switch) of the physical layer identifications of sub-district A, the CGI of sub-district 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 sub-district A.
Particularly, problem base station or O﹠amp; The M system adjusts the handoff parameter of sub-district 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 sequence of steps 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:
Particularly, after UE was linked into sub-district B, the radio link quality rapid deterioration of UE also caused 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.
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 sub-district of sub-district B.
Particularly, because UE is before the base station to A place, sub-district sends RRC connection reconstruction request message, completed successfully the switching of sub-district A to sub-district B, the base station at A place, sub-district does not discharge the context of UE when receiving RRC connection reconstruction request message, comprising sub-district 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 sub-district B of UE place.The base station at A place, sub-district is by searching above-mentioned temporary mark, can know that UE switched to sub-district B from sub-district A before the base station to A place, sub-district sends RRC connection reconstruction request message, and in the B of sub-district RLF takes place, therefore, can judge the switching time of UE from sub-district A to sub-district B and incorrect, there is too early switching problem in the base station at A place, sub-district.
Particularly, if the decision entity of the handoff parameter adjustment of the base station at A place, sub-district is positioned at O﹠amp; In the M system, the base station at A place, sub-district 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, sub-district A of sub-district A and the type (i.e. switching too early) of the switching problem that self exists in this notification message.
Particularly, O﹠amp; The M system adjusts the handoff parameter of sub-district A, to reduce the RLF that too early switching causes after obtaining the type of the switching problem that sub-district A exists.
In addition, if the decision entity of the handoff parameter adjustment of the base station at A place, sub-district is positioned at this base station, this base station is adjusted the handoff parameter of sub-district A, to reduce the RLF that too early switching causes after obtaining the type of the switching problem that sub-district A exists.
Need to prove that the inventive method can be adjusted each sequence of steps 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:
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 messages 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.
Above-mentioned judge module 620, specifically be 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 sub-district, illustrate that the signal of rebuilding the sub-district 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, handoff parameter just lost Radio Link because being provided with the unreasonable not timely triggering measurement report of subscriber equipment that causes, 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 sub-district 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.
Particularly, owing to comprised the physical layer identifications that the sub-district 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, sub-district 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:
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 cell selecting, the preferential E-UTRAN of selection sub-district is as rebuilding the sub-district, if there is not qualified E-UTRAN sub-district, the sub-district that also can select other wireless standard systems is as rebuilding the sub-district; Subscriber equipment 710 sends RRC connection reconstruction request message to the reconstruction base station 720 that rebuilds the sub-district correspondence, have only when this reconstruction sub-district is a ready sub-district (promptly the contextual information of UE is preserved in this sub-district), the reconstruction request of UE just can be accepted in this reconstruction sub-district, and to UE transmission RRC reconstruction message, RRC connection reconstruction process just can be successful; If this reconstruction sub-district is not ready sub-district (promptly this sub-district 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 (OtherFailure), 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 messages of special use.
Rebuild base station 720, be used to receive 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 sub-district, illustrate that the signal of rebuilding the sub-district 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, handoff parameter just lost Radio Link because being provided with the unreasonable not timely triggering measurement report of subscriber equipment 710 that causes, 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 sub-district 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 sub-district 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 sub-district 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, sub-district 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 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 a 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 the foregoing description 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 is not represented 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.
Claims (11)
1. a method that detects switching problem is characterized in that, may further comprise the steps:
Rebuild the radio resource control RRC connection reconstruction request message of base station reception, comprise the reconstruction reason in the described RRC connection reconstruction request message from subscriber equipment;
Described reconstruction base station is according to the reconstruction reason in the described RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
2. the method for claim 1 is characterized in that, described reconstruction reason comprises any one in the following content:
Having sent switching condition in the Preset Time before measurement report, the RLF in the Preset Time before the Radio Link Failure RLF has satisfied but has not sent handover success and RLF in the Preset Time before measurement report, the RLF.
3. method as claimed in claim 2 is characterized in that, described reconstruction base station is according to the reconstruction reason in the RRC connection reconstruction request message, and the switching problem of decision problem base station correspondence specifically comprises:
Sent in the Preset Time before the former because RLF of described reconstruction that switching condition in the Preset Time before measurement report, the RLF has satisfied but when not sending among measurement report and the RLF any one, described reconstruction base station judges that the switching problem of described problem base station correspondence be slow switching; Perhaps
During handover success, described reconstruction base station judges that the switching problem of described problem base station correspondence is for switching too early in the Preset Time before the former because RLF of described reconstruction.
4. as claim 2 or 3 described methods, it is characterized in that the value of described Preset Time is by operation and maintenance O﹠amp; The M system configuration, and by the base station in system information of subdistricts to subscriber equipment broadcasting, perhaps in the down-run survey control messages of special use, send subscriber equipment to.
5. the method for claim 1 is characterized in that, described reconstruction base station, also comprises after the switching problem of decision problem base station correspondence according to the reconstruction reason in the RRC connection reconstruction request message:
The decision entity that the switching problem that there is described problem base station in described reconstruction base station notifies the handoff parameter of described problem base station to adjust makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
6. a base station equipment is characterized in that, comprising:
Receiver module is used to receive the radio resource control RRC connection reconstruction request message from subscriber equipment, comprises the reconstruction reason in the described RRC connection reconstruction request message;
Judge module, the reconstruction reason that is used for the RRC connection reconstruction request message that receives according to described receiver module, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
7. base station equipment as claimed in claim 6 is characterized in that,
Described judge module, switching condition has satisfied but when not sending any one of measurement report and RLF, the switching problem of judging described problem base station correspondence be slow switching in the Preset Time before specifically being used for having sent measurement report, RLF in the Preset Time before the former because RLF of described reconstruction; Perhaps
During handover success, the switching problem of judging described problem base station correspondence is for switching too early in the Preset Time before the former because RLF of described reconstruction.
8. as claim 6 or 7 described base station equipments, it is characterized in that, also comprise:
Notification module, the decision entity that the switching problem that the described problem base station that is used for that described judge module is judged exists notifies the handoff parameter of described problem base station to adjust makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
9. a system that detects switching problem is characterized in that, comprising:
Subscriber equipment is used for sending radio resource control RRC connection reconstruction request message to rebuilding the base station, comprises the reconstruction reason in the described RRC connection reconstruction request message;
Rebuild the base station, be used to receive RRC connection reconstruction request message from described subscriber equipment, according to the reconstruction reason in the described RRC connection reconstruction request message, the switching problem of decision problem base station correspondence was slow the switching or switching too early, and described problem base station is described subscriber equipment generation Radio Link Failure or switches the base station of accepting the Serving cell place of service before.
10. system as claimed in claim 9 is characterized in that,
Described reconstruction base station also is used for the decision entity of notifying the handoff parameter of described problem base station to adjust the switching problem that described problem base station exists, makes described decision entity adjust the handoff parameter of described problem base station according to described switching problem.
11., it is characterized in that described reconstruction reason comprises any one in the following content as claim 9 or 10 described systems:
Having sent switching condition in the Preset Time before measurement report, the RLF in the Preset Time before the Radio Link Failure RLF has satisfied but has not sent handover success and RLF in the Preset Time before measurement report, the RLF;
Described switching problem comprised switching late or switched too early.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103298004A (en) * | 2012-02-28 | 2013-09-11 | 北京三星通信技术研究有限公司 | Method for reporting wireless link failure information |
| CN104081806A (en) * | 2012-01-20 | 2014-10-01 | 富士通株式会社 | Method for analyzing link failure cause, and network optimizing method and device thereof |
| CN104737578A (en) * | 2013-10-17 | 2015-06-24 | 华为技术有限公司 | Method and equipment for locating network problems |
| CN105379355A (en) * | 2013-07-16 | 2016-03-02 | 瑞典爱立信有限公司 | Mobility enhancement in heterogeneous networks |
| CN109347541A (en) * | 2018-10-18 | 2019-02-15 | 上海歌尔泰克机器人有限公司 | Equipment switching method, device and data transmission system |
| CN110035463A (en) * | 2012-08-03 | 2019-07-19 | 三星电子株式会社 | Method and apparatus for adjusting mobility parameters |
| CN110831098A (en) * | 2013-07-31 | 2020-02-21 | 松下电器（美国）知识产权公司 | Communication apparatus and method for performing handover to target base station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511138A (en) * | 2000-12-22 | 2004-07-07 | ��ʽ�����װ | Access parameter adaptation and packet data resource management using detailed mobile status information |
| CN101128057A (en) * | 2007-09-27 | 2008-02-20 | 中兴通讯股份有限公司 | Optimization method for base station switching |
| WO2009052686A1 (en) * | 2007-10-26 | 2009-04-30 | Huawei Technologies Co., Ltd. | Mobile terminal, network entity and method related thereto |
-
2009
- 2009-06-26 CN CN 200910087812 patent/CN101931966B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1511138A (en) * | 2000-12-22 | 2004-07-07 | ��ʽ�����װ | Access parameter adaptation and packet data resource management using detailed mobile status information |
| CN101128057A (en) * | 2007-09-27 | 2008-02-20 | 中兴通讯股份有限公司 | Optimization method for base station switching |
| WO2009052686A1 (en) * | 2007-10-26 | 2009-04-30 | Huawei Technologies Co., Ltd. | Mobile terminal, network entity and method related thereto |
Non-Patent Citations (1)
| Title |
|---|
| NOKIA SIEMENS NETWORKS: "《R3-091357，3GPP TSG RAN WG3 Meeting #64》", 8 May 2009, 3GPP TSG RAN WG3 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104081806A (en) * | 2012-01-20 | 2014-10-01 | 富士通株式会社 | Method for analyzing link failure cause, and network optimizing method and device thereof |
| CN103298004A (en) * | 2012-02-28 | 2013-09-11 | 北京三星通信技术研究有限公司 | Method for reporting wireless link failure information |
| CN110035463A (en) * | 2012-08-03 | 2019-07-19 | 三星电子株式会社 | Method and apparatus for adjusting mobility parameters |
| CN110035463B (en) * | 2012-08-03 | 2022-04-12 | 三星电子株式会社 | Method and apparatus for adjusting mobility parameters |
| CN105379355A (en) * | 2013-07-16 | 2016-03-02 | 瑞典爱立信有限公司 | Mobility enhancement in heterogeneous networks |
| CN110831098A (en) * | 2013-07-31 | 2020-02-21 | 松下电器（美国）知识产权公司 | Communication apparatus and method for performing handover to target base station |
| CN110831098B (en) * | 2013-07-31 | 2022-01-25 | 松下电器（美国）知识产权公司 | Communication apparatus and method for performing handover to target base station |
| US11343746B2 (en) | 2013-07-31 | 2022-05-24 | Panasonic Intellectual Property Corporation Of America | Handoff procedure in a mobile communication system |
| US11696203B2 (en) | 2013-07-31 | 2023-07-04 | Panasonic Intellectual Property Corporation Of America | Handoff procedure in a mobile communication system |
| CN104737578A (en) * | 2013-10-17 | 2015-06-24 | 华为技术有限公司 | Method and equipment for locating network problems |
| CN109347541A (en) * | 2018-10-18 | 2019-02-15 | 上海歌尔泰克机器人有限公司 | Equipment switching method, device and data transmission system |
| CN109347541B (en) * | 2018-10-18 | 2021-07-27 | 上海歌尔泰克机器人有限公司 | Equipment switching method and device and data transmission system |
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