CN102196489B - Method and device for detecting handover failure - Google Patents
Method and device for detecting handover failure Download PDFInfo
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- CN102196489B CN102196489B CN201010116800.1A CN201010116800A CN102196489B CN 102196489 B CN102196489 B CN 102196489B CN 201010116800 A CN201010116800 A CN 201010116800A CN 102196489 B CN102196489 B CN 102196489B
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Abstract
The embodiment of the invention discloses a method for detecting a handover failure, comprising the following steps: receiving a request message from UE (user equipment) by a network-side device, wherein the request message carries newest service cell information and stable service cell information corresponding to the UE; and using the network-side device to judge whether the UE executes later handover or earlier handover in accordance with the newest service cell information and the stable service cell information. In the embodiment of the invention, the judgment process is simple, the interactive quantity of network signaling is reduced, the detection is faster and the adjustment stage of parameters can be executed earlier.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of handover failure detection method and apparatus.
Background technology
LTE (Long Term Evolution, Long Term Evolution) be 3G (3rd Generation, third generation digital communication) evolution, LTE improves and has strengthened the aerial access technology of 3G, adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and MIMO (Multiple Input Multiple Output, multiple-input and multiple-output) as the standard of this LTE wireless network evolution.
In LTE network, incorrect handoff parameter configuration will cause the ping-pong phenomenon switching, and the generation of ping-pong phenomenon not only can have passive impact to user's impression, also can waste Internet resources simultaneously.Therefore, MRO (Mobile Reliability optimization, mobile reliability optimization) need to consideration be detected too early switching, be crossed the switching anomalies such as switching in evening by RLF (Radio link failure, radio jink failure).Wherein, the failure procedure relevant with switching can be divided into: switch too early and spend evening and switch.Can find out, unreasonable if handoff parameter arranges, will make switching time control unreasonable, then cause switching too early or spend evening and switch phenomenon, and cause RLF phenomenon.Wherein, switching time is excessively late, can RLF occur in cell-of-origin, and switching time is too early, and RLF can occur in Target cell.
As shown in Figure 1, be a kind of schematic diagram of crossing switching in evening, UE (User Equipment, subscriber equipment) occurs, after RLF, again to connect with base station 2 (being eNB2) base station 1 (being eNB1), and judges that base station 1 had occurred to cross evening and switched.Wherein, the principal character of switching evening comprises: before handover trigger or in handoff procedure, RLF has occurred in cell-of-origin, and UE re-establishes the community of connection and needs in different community, Yu Yuan community.
Concrete, the process of crossing switching in evening comprises the following steps:
(1) when UE is after the 1 generation RLF of base station, again connect with base station 2, RLF event report is sent to former base station 1 by X2 interface in base station 2.Wherein, the RLF event report that send base station 2 is to comprising following information word in base station 1: a) Failure Cell ID (failed cell ID), LiaoRLF community PCI (Physical Layer Cell ID, physical-layer cell identifier) is occurring.B) Reestablishment (reconstruction) Cell ID: at community PCI and CGI (Global Cell ID that connection request has occurred to re-establish, Cell Global Identity), this CGI also can be called ECGI, i.e. E-UTRAN Cell Global ID, and this CGI is optional.C) C-RNTI (Cell Radio Network Temporary Identifier, Cell Radio Network Temporary Identifier/Identity, Cell-RNTI), UE is at current generation LiaoRLF community C-RNTI.(2) base station 1, according to the RLF event report receiving, determines that having occurred once to spend evening switches.
As shown in Figure 2, schematic diagram for a kind of too early switching, UE is switched to behind base station 2 (being eNB2) by base station 1 (being eNB1), there is in a short period of time RLF, while needing to be again linked into base station 1 again, base station 1 thinks that UE switches too early, and 2 sends the too early information of handover trigger to base station.Wherein, switching too early principal character comprises: UECong Yuan community (community of eNB1) switches to after (or not yet successful switch arrives) Target cell (community of eNB2), and there is in a short period of time RLF, need to re-establish and be connected to former community (community of eNB1).
In realizing process of the present invention, inventor finds at least to exist in prior art following problem:
(1) deterministic process more complicated, to too early switching and the detection of spending evening and switching mainly depend on the RLF event report that Target cell sends to cell-of-origin, the information of then being grasped according to self by cell-of-origin judges.And because the reason of generation RLF is a lot, for example, cover the reasons such as leak and also can cause RLF, in order to distinguish these situations, will inevitably cause increasing new signaling field.
(2) Signalling exchange is complicated, detection about handoff failure at present mainly realizes by interactive information between community, information interaction repeatedly may cause the loss of information, and the message of transmitting is the testing result of base station self, may be inaccurate, thereby cause the incorrect of testing result.
(3) accuracy is limited, has the situations such as PCI erroneous judgement, thereby cause the accuracy of testing result to have much room for improvement due to meeting.
Summary of the invention
The invention provides a kind of handover failure detection method and apparatus, to judge accurately situation about switching evening and situation about switching too early.
In order to achieve the above object, the present invention proposes a kind of handover failure detection method, comprise the following steps:
Network equipment receives the request message from user equipment (UE), has carried latest services cell information and stable service cell information that described UE is corresponding in described request message;
Described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early.
Preferably, described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, specifically comprised:
The community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early.
Preferably, the community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early, specifically comprised:
Described network equipment obtains latest services cell information and stable service cell information according to described request message;
If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, and described network equipment judges that described UE occurred to switch evening;
If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, and described network equipment judges that described UE occurs to switch too early.
Preferably, described message comprises radio resource control RRC connection reconstruction request message; Described network equipment also comprises before receiving the request message from user equipment (UE):
When described UE receives switching command and is switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, described UE latest services cell information is set to Target cell in switching command, described stable service cell information is set to cell-of-origin in switching command, and obtains the community that need to re-establish connection;
When the community that needs re-establish connection is Target cell, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described Target cell, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information;
When the community that needs re-establish connection is cell-of-origin, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described cell-of-origin, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
Preferably, described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, also comprised afterwards:
Described network equipment according to crossing, switch or the judged result of switching is too early optimized handoff parameter by evening; Be specially: when described UE occurs to switch too early, described network equipment arranges handoff parameter corresponding to too early switching; Or when described UE occurred to switch evening, described network equipment arranged and switches corresponding handoff parameter evening.
A network equipment, comprising:
Receiver module, for receiving the request message from user equipment (UE), has carried latest services cell information and stable service cell information that described UE is corresponding in described request message;
Judge module, judges for described latest services cell information and the described stable service cell information receiving according to described receiver module whether described UE occurred switch evening or switch too early.
Preferably, described judge module specifically for, the community that re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early.
Preferably, described message comprises RRC connection reconstruction request message;
Described judge module specifically for, according to described request message, obtain latest services cell information and stable service cell information;
If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, judges that described UE occurred to switch evening;
If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, judges that described UE occurs to switch too early.
Preferably, also comprise:
Optimize module, for the judged result of crossing switching in evening or switching too early according to described judge module judgement, optimize handoff parameter; Be specially: when described UE occurs to switch too early, handoff parameter corresponding to too early switching is set; Or, when described UE occurred to switch evening, arranged and switch corresponding handoff parameter evening.
A user equipment (UE), comprising:
Module is set, for request message is set, in described request message, has carried corresponding latest services cell information and the stable service cell information of UE;
Sending module, for send the described described request message that module arranges that arranges to network equipment, by described network equipment, according to described latest services cell information and described stable service cell information, judge whether described UE occurred switch evening or switch too early.
Preferably, described request message comprises RRC connection reconstruction request message;
Described arrange module specifically for, when receiving switching command and be switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, latest services cell information is set to Target cell in switching command, described stable service cell information is set to cell-of-origin in switching command, and obtains the community that need to re-establish connection;
Described sending module specifically for, when the community that needs re-establish connection is Target cell, to network equipment corresponding to described Target cell, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information;
When the community that needs re-establish connection is cell-of-origin, to network equipment corresponding to described cell-of-origin, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
Compared with prior art, the present invention at least has the following advantages:
In disappearing by the request sending to network equipment at UE, carry latest services cell information and the stable service cell information that UE is corresponding, by network equipment, according to latest services cell information and stable service cell information, accurately judge that UE occurred switch evening or switch too early, deterministic process is simple, reduced the mutual quantity of signaling, and can detect faster, and can be adjusting stage that enters into parameter more early.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the late handoff procedure schematic diagram of a kind of mistake proposing in prior art;
Fig. 2 is a kind of too early handoff procedure schematic diagram proposing in prior art;
Fig. 3 is a kind of handover failure detection method flow diagram proposing in the embodiment of the present invention;
Fig. 4 is a kind of handover failure detection method flow diagram proposing under a kind of application scenarios of the embodiment of the present invention;
Fig. 5 is a kind of network equipment structure chart proposing in the embodiment of the present invention;
Fig. 6 is a kind of user device architecture figure proposing in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is embodiment of the present invention part embodiment, rather than whole embodiment.Embodiment based in the embodiment of the present invention, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of embodiment of the present invention protection.
As shown in Figure 3, in the embodiment of the present invention, proposed a kind of handover failure detection method, comprised the following steps:
Concrete, described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, specifically comprised: the community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early.
Further, the community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early, specifically comprised: described network equipment obtains latest services cell information and stable service cell information according to described request message; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, and described network equipment judges that described UE occurred to switch evening; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, and described network equipment judges that described UE occurs to switch too early.
In the embodiment of the present invention, before described network equipment receives the request message from user equipment (UE), also comprise: when described UE receives switching command and is switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, described UE latest services cell information is set to Target cell in switching command, described stable service cell information is set to cell-of-origin in switching command, and obtains the community that need to re-establish connection; When the community that needs re-establish connection is Target cell, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described Target cell, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information; When the community that needs re-establish connection is cell-of-origin, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described cell-of-origin, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
In addition, in embodiments of the present invention, described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, also comprised afterwards: described network equipment is optimized handoff parameter according to crossing the late judged result of switching or switching too early; Be specially: when described UE occurs to switch too early, described network equipment arranges handoff parameter corresponding to too early switching; Or when described UE occurred to switch evening, described network equipment arranged and switches corresponding handoff parameter evening.
Visible, the method that the application of the invention embodiment provides, in disappearing by the request sending to network equipment at UE, carry latest services cell information and the stable service cell information that UE is corresponding, by network equipment, according to latest services cell information and stable service cell information, accurately judge that UE occurred switch evening or switch too early, deterministic process is simple, reduced the mutual quantity of signaling, and can detect faster, and can be adjusting stage that enters into parameter more early.
For technical scheme provided by the present invention is more clearly described, the handover failure detection method embodiment of the present invention being provided below in conjunction with the application scenarios shown in Fig. 1 is elaborated.In embodiments of the present invention; network equipment includes but not limited to RNC (Radio Network Controller; radio network controller), NB (Node B; Node B), eNB, relaying Relay, base station etc.; it should be noted that; this network equipment is not limited to the said equipment, and all equipment that is positioned at network side is all within protection range of the present invention, and the eNB of take in the embodiment of the present invention describes as example.
In the embodiment of the present invention, after there is RLF, UE can initiate to re-establish the process of connection automatically, this process that re-establishes connection is by RRC (Radio Resource Control, radio resource control) connection reconstruction request (being RRCConnectionReestablishment Request) message completes, while there is RLF in crossing switching in evening or too early handoff procedure, UE can send to the Serving cell that re-establishes connection this RRC connection reconstruction request message, thereby completes process of reconstruction.For example, when the Serving cell that re-establishes connection is during for cell-of-origin corresponding to this UE, this UE need to send to this cell-of-origin RRC connection reconstruction request message.
Further, in embodiments of the present invention, by using the additional information in two fields in RRC connection reconstruction request message to complete the detection of switching or switching too early spending evening.Wherein, these two fields are respectively LcellID field and PcellID field, and this LcellID field is used for carrying latest services cell information, and this PcellID field is used for carrying stable service cell information.
It should be noted that this PcellID field is in the additional field of this RRC connection reconstruction request message in the embodiment of the present invention.Can in additional PcellID field, carry stable service cell information.
Certainly, in actual applications, be not limited in the additional LcellID field of RRC connection reconstruction request message and PcellID field, can also add LcellID field and PcellID field by other request message, for example, in request message A, additional LcellID field and PcellID field, repeat in the embodiment of the present invention no longer in detail.Further, also can carry this latest services cell information and stable service cell information in other fields of RRC connection reconstruction request message (or other request messages), in the embodiment of the present invention, repeat no longer in detail.Take and carry out follow-up explanation in the additional LcellID field of RRC connection reconstruction request message and PcellID field as example.
As shown in table 1, be the situation in the additional LcellID field of RRC connection reconstruction request message and PcellID field:
Table 1:
| lCellID | pCellID |
| latest services community.If do not receive switching command, this field is current service cell, if receive switching command, and the Target cell that this field is switching command. | stablize Serving cell.Need to be greater than the time that certain operator sets the service time of stablizing Serving cell, when stablizing Serving cell while being greater than this time, can think UE normal activity in stablizing Serving cell. |
As shown in Figure 4, this handover failure detection method comprises the following steps:
Step 401, UE, when receiving switching command, obtains the information of latest services community and stable Serving cell.As shown in Figure 1, the service accepted in the A of the community of eNB1 with UE surpasses Preset Time, and it is that the switching command of eNB2 Xia community B is that example describes that Qie community A receives Target cell.Wherein, the time that this Preset Time is set for certain operator, when surpassing this Preset Time, can think UE normal activity in stablize Serving cell, the interior normal activity of JiUE community A.
Concrete, when accepting service in eNB1, UE surpasses after Preset Time, can think that latest services community and the stable Serving cell of UE are community A, and when now UE community A receives Target cell and is the switching command of community B, at UE, be switched in the process of community B, the information of this latest services community will change, be that latest services community will become community B, but, due to UE not yet community B in the service accepted, surpass Preset Time, UE still Wei community A accepts service over Preset Time, the stable Serving cell Reng Wei community A of this UE.
Step 402, UE is switched to Target cell according to switching command from cell-of-origin, and judges in the process that is switched to Target cell or while being just linked into Target cell, and whether RLF occurs.If there is RLF, forward step 403 to, otherwise, process ends.In the embodiment of the present invention, this UE need to be switched to eNB2 Xia community B from eNB1 Xia community A, now needs to judge whether UE, in being linked into the process of eNB2 or while being just linked into eNB2, RLF occurs.
Step 403, UE obtains the community that need to re-establish connection.
Concrete, after there is RLF, UE need to obtain the community that re-establishes connection, and wherein, this community that re-establishes connection can be cell-of-origin corresponding to this UE (being eNB1 Xia community A) or Target cell (being eNB2 Xia community B) corresponding to this UE.When the community that re-establishes connection is during for Target cell corresponding to this UE, forward step 404 to, when the community that re-establishes connection is during for cell-of-origin corresponding to this UE, forward step 406 to.
Further, this UE can determine the community that re-establishes connection according to environment around, and for example, the signal strength signal intensity between the A of DangUEYu community is during higher than other communities, and UE determines that the community that re-establishes connection is eNB1 Xia community A; Signal strength signal intensity between the B of UEYu community is during higher than other communities, and UE determines that the community that re-establishes connection is eNB2 Xia community B.
Step 404, UE connects in Target cell again, and sends RRC connection reconstruction request message to this Target cell.Wherein, this Target cell is eNB2 Xia community B, and UE need to re-establish and be connected to eNB2 Xia community B, and the eNB2 that Bing Xiang community B is corresponding sends RRC connection reconstruction request message.
Concrete, in this RRC connection reconstruction request message, carried LcellID field and PcellID field, in this LcellID field, carry latest services cell information, this PcellID field is carried stable service cell information; And got latest services community in above-mentioned steps, be community B, stable Serving cell is community A, when Ji Xiang community B sends RRC connection reconstruction request message, the information of having carried community B in LcellID field, PcellID field has been carried the information of community A.
Step 405, eNB2 gets and occurred to cross evening switches according to LcellID field and PcellID field.
Concrete, when eNB2 gets LcellID field, be community B, PcellID field is community A, and UE is in being linked into the process of eNB2 or while being just linked into eNB2, there is RLF,, when UE is reconstructed into eNB2 Xia community B, eNB2 knows that occurred to cross evening switches, and eNB2 knows that between UE community A and community B, having occurred to cross evening switches.
Further, when getting when having occurred to cross evening switching, this eNB2 also needs the judged result optimization handoff parameter switching according to spending evening, when occurring to switch evening, eNB2 need to arrange and switch corresponding handoff parameter evening, and this arranges in the optimizing process embodiment of the present invention of handoff parameter and repeats no more.
Step 406, UE connects in cell-of-origin again, and sends RRC connection reconstruction request message to this cell-of-origin.Wherein, this cell-of-origin is eNB1 Xia community A, and UE need to re-establish and be connected to Enb1 Xia community A, and the eNB1 that Bing Xiang community A is corresponding sends RRC connection reconstruction request message.
Concrete, in this RRC connection reconstruction request message, carried LcellID field and PcellID field, in this LcellID field, carry latest services cell information, this PcellID field is carried stable service cell information; And got latest services community in above-mentioned steps, be community B, stable Serving cell is community A, when Ji Xiang community B sends RRC connection reconstruction request message, the information of having carried community B in LcellID field, PcellID field has been carried the information of community A.
Step 407, eNB1 gets too early switching has occurred according to LcellID field and PcellID field.
Concrete, when eNB1 gets LcellID field, be community B, PcellID field is community A, and UE is in being linked into the process of eNB2 or while being just linked into eNB2, there is RLF, when UE is reconstructed into eNB1 Xia community A, eNB1 knows too early switching occurred, and eNB1 is known between UE community A and community B too early switching has been occurred.
Further, when getting while there is too early switching, this eNB1 also needs to optimize handoff parameter according to the judged result of switching too early.,, when occurring to switch too early, eNB1 need to arrange handoff parameter corresponding to too early switching, and this arranges in the optimizing process embodiment of the present invention of handoff parameter and repeats no more.
Wherein, can the adjusting according to the actual needs smoothly of each step in the present invention.
Visible, to provide in the application of the invention embodiment method, has the following advantages:
(1) deterministic process is simple, does not need communication process between Liang Ge community just can judge and occurs switch evening or switch too early.
(2) judgement principle is simple, does not need too early switching and spend evening to switch the different judgement scheme of implementing respectively.
(3) interface signaling is simple, and the present invention can make Target cell direct-detection to handoff failure, does not need by X2 interface pass-along message, can reduce the mutual of signaling; And can complete faster detection, adjusting stage that enters parameter more early then.
In addition, in the present invention, be to utilize the RRC connection reconstruction request message of UE to realize detection, in Target cell, receiving this RRC connection reconstruction request message can judge, and can make judgement more quick, accurate and reliable.
Inventive concept based on same, has also proposed a kind of network equipment in the embodiment of the present invention, as shown in Figure 5, comprising:
Described judge module 62 specifically for, the community that re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early.
Described judge module 62 is further used for, and according to described request message, obtains latest services cell information and stable service cell information; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, judges that described UE occurred to switch evening; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, judges that described UE occurs to switch too early.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Visible, the equipment providing in the application of the invention embodiment, in disappearing by the request sending to network equipment at UE, carry latest services cell information and the stable service cell information that UE is corresponding, by network equipment, according to latest services cell information and stable service cell information, accurately judge that UE occurred switch evening or switch too early, deterministic process is simple, reduced the mutual quantity of signaling, and can detect faster, and can be adjusting stage that enters into parameter more early.
Inventive concept based on same, has also proposed a kind of subscriber equipment in the embodiment of the present invention, as shown in Figure 6, comprising:
Sending module 72, for send the described described request message that module 71 arranges that arranges to network equipment, by described network equipment, according to described latest services cell information and described stable service cell information, judge whether described UE occurred switch evening or switch too early.
Concrete, described request message comprises RRC connection reconstruction request message;
Described arrange module 71 specifically for, when receiving switching command and be switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, latest services cell information is set to Target cell in switching command, described stable service cell information is set to cell-of-origin in switching command, and obtains the community that need to re-establish connection;
Described sending module 72 specifically for, when the community that needs re-establish connection is Target cell, to network equipment corresponding to described Target cell, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information;
When the community that needs re-establish connection is cell-of-origin, to network equipment corresponding to described cell-of-origin, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Visible, the equipment providing in the application of the invention embodiment, in disappearing by the request sending to network equipment at UE, carry latest services cell information and the stable service cell information that UE is corresponding, by network equipment, according to latest services cell information and stable service cell information, accurately judge that UE occurred switch evening or switch too early, deterministic process is simple, reduced the mutual quantity of signaling, and can detect faster, and can be adjusting stage that enters into parameter more early.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, and the mode that also can add necessary general hardware platform by software realizes.Understanding based on such, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (7)
1. a handover failure detection method, is characterized in that, comprises the following steps:
Network equipment receives the request message from user equipment (UE), has carried latest services cell information and stable service cell information that described UE is corresponding in described request message;
Described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early;
Described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, specifically comprised: the community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early;
The community that described network equipment re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early, specifically comprised: described network equipment obtains latest services cell information and stable service cell information according to described request message; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, and described network equipment judges that described UE occurred to switch evening; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, and described network equipment judges that described UE occurs to switch too early.
2. the method for claim 1, is characterized in that, described message comprises radio resource control RRC connection reconstruction request message; Described network equipment also comprises before receiving the request message from user equipment (UE):
When described UE receives switching command and is switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, described UE is Target cell in switching command by latest services cell information She Ge, by described stable service cell information She Ge, be cell-of-origin in switching command, and obtain the community that need to re-establish connection;
When the community that needs re-establish connection is Target cell, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described Target cell, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information;
When the community that needs re-establish connection is cell-of-origin, described UE sends described RRC connection reconstruction request message to network equipment corresponding to described cell-of-origin, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
3. the method for claim 1, is characterized in that, described network equipment judges according to described latest services cell information and described stable service cell information whether described UE occurred switch evening or switch too early, also comprised afterwards:
Described network equipment according to crossing, switch or the judged result of switching is too early optimized handoff parameter by evening; Be specially: when described UE occurs to switch too early, described network equipment She Ge switches corresponding handoff parameter too early; Or when described UE occurred to switch evening, described network equipment She Ge crosses handoff parameter corresponding to late switching.
4. a network equipment, is characterized in that, comprising:
Receiver module, for receiving the request message from user equipment (UE), has carried latest services cell information and stable service cell information that described UE is corresponding in described request message;
Judge module, judges for described latest services cell information and the described stable service cell information receiving according to described receiver module whether described UE occurred switch evening or switch too early;
Described judge module specifically for, the community that re-establishes connection according to described latest services cell information, described stable service cell information and described UE judges whether described UE occurred switch evening or switch too early;
Described judge module specifically for, according to described request message, obtain latest services cell information and stable service cell information; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the Target cell that the community of connection is described UE, judges that described UE occurred to switch evening; If described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, judges that described UE occurs to switch too early.
5. network equipment as claimed in claim 4, is characterized in that, also comprises:
Optimize module, for the judged result of crossing switching in evening or switching too early according to described judge module judgement, optimize handoff parameter; Be specially: when described UE occurs to switch too early, ， She Ge switches corresponding handoff parameter too early; Or ， She Ge crossed handoff parameter corresponding to late switching when described UE occurs to switch evening.
6. a user equipment (UE), is characterized in that, comprising:
She Ge module, for She Ge request message, has carried corresponding latest services cell information and the stable service cell information of UE in described request message;
Sending module, for send the described request message of described She Ge Mo Kuai She Ge to network equipment, by described network equipment, according to described latest services cell information and described stable service cell information, judge whether described UE occurred switch evening or switch too early; Describedly judge whether described UE occurred to switch or switch to too early described network equipment according to UE, to re-establish the community of connection evening, and the described latest services cell information obtaining according to described request message and described stable service cell information are carried out, wherein, when described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and when described UE re-establishes the Target cell that the community of connection is described UE, by described network equipment, judge that described UE occurred to switch evening; When described latest services cell information is Target cell, described stable service cell information is cell-of-origin, and described UE is while re-establishing the cell-of-origin that the community of connection is described UE, by described network equipment, judges that described UE occurs to switch too early.
7. user equipment (UE) as claimed in claim 6, is characterized in that, described request message comprises RRC connection reconstruction request message;
Described She Ge module specifically for, when receiving switching command and be switched to Target cell from cell-of-origin, if there is wireless link inefficacy RLF, by latest services cell information She Ge, it is Target cell in switching command, by described stable service cell information She Ge, be cell-of-origin in switching command, and obtain the community that need to re-establish connection;
Described sending module specifically for, when the community that needs re-establish connection is Target cell, to network equipment corresponding to described Target cell, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information;
When the community that needs re-establish connection is cell-of-origin, to network equipment corresponding to described cell-of-origin, send described RRC connection reconstruction request message, wherein, LcellID field in described RRC connection reconstruction request message is carried described latest services cell information, and the PcellID field in described RRC connection reconstruction request message is carried described stable service cell information.
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| KR102044019B1 (en) * | 2012-08-03 | 2019-12-02 | 삼성전자주식회사 | Method and apparatus for adjusting mobility parameter |
| CN110149731B (en) * | 2013-08-06 | 2021-04-20 | 华为技术有限公司 | Indication information sending and receiving method and device |
| CN107708160A (en) * | 2016-08-09 | 2018-02-16 | 中兴通讯股份有限公司 | A kind of detection method and device switched too early |
| CN113498104A (en) * | 2020-04-08 | 2021-10-12 | 大唐移动通信设备有限公司 | Method for reporting and acquiring radio link failure information, terminal and network side equipment |
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| CN101500218A (en) * | 2008-02-02 | 2009-08-05 | 华为技术有限公司 | Method and apparatus for obtaining information in mobility management process |
| CN101626590A (en) * | 2009-08-04 | 2010-01-13 | 中国科学技术大学 | Method for preventing conflict between moving load balance and moving robustness optimization function |
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