CN103391566B - Optimization method and device - Google Patents
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- CN103391566B CN103391566B CN201210141528.1A CN201210141528A CN103391566B CN 103391566 B CN103391566 B CN 103391566B CN 201210141528 A CN201210141528 A CN 201210141528A CN 103391566 B CN103391566 B CN 103391566B
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Abstract
The invention discloses a kind of optimization method and device, this method includes：In the network environment for supporting D2D communications, the cell-of-origin for having initiated UE cell switching receives the D2D relevant informations of network environment；Cell-of-origin optimizes according to the testing result of D2D relevant informations and MRO scenes to mobility parameters and/or D2D relevant informations.Invention increases the correctness of MRO scene statistics and accuracy, and then it ensure that and the mobility parameters and/or D2D relevant informations of related neighboring interval are carried out with correct and accurately optimization.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of optimization method and device.
Background technology
In order to reduce the manual intervention to network, O＆M cost is reduced, while improves the performance and stability of network, the 3rd
For Partnership Program（Third Generation Partnership Projects, referred to as 3GPP）It is organized in the general of evolution
Land radio access web（Evolved Universal Terrestrial Radio Access Network, referred to as E-
UTRAN）The version 8 of system（Release-8）Start to introduce self-organizing network（Self-Organized Network, SON）Work(
Energy.E-UTRAN includes evolution base station（EvolvedNode B, referred to as eNB）, its corresponding core net（Core Network,
Referred to as CN）Including mobile management entity（Mobile Management Entity, referred to as MME）And gateway
（Serving Gateway, referred to as S-GW）Deng.Connected by S1 interfaces between eNB and MME/S-GW, can passed through between eNB
X2 interface connects.One eNB can manage one or more cells（Cell）.SON includes moving load balance optimizing
（Mobility Load Balancing optimization, referred to as MLB）, mobile robustness optimization（Mobility
Robustness Optimization, referred to as MRO）Etc. content.
MRO is included to switching too late（Too Late Handover）, too early switching（Too Early Handover）, it is wrong
Cell switching by mistake（Handover to Wrong Cell）The detection of scene, analytic statistics, statistics are carried out to the result detected
The mobility parameters that reach after certain amount related neighbor cell of number hold consultation the contents such as adjustment, to reduce
Handoff failure（Handover Failure, referred to as HOF）Or the Radio Link Failure that switching is related（Radio Link
Failure, referred to as RLF）.
Detection for MRO scenes, wireless heterogeneous networks reconstruction trial is mainly being received according to eNB（RRC re-
Establishment attempt, wherein, RRC is Radio Resource Control abbreviation）Or Radio Link Failure report
Accuse（RLF Report）The Radio Link Failure instruction sent afterwards（RLF INDICATION）Message, and eNB are being received
The handover report sent after RLFINDICATION message（HANDOVER REPORT）Message judges and notified.UE is having
When RLF Report need report, it can be completed in RRC connection re-establishments
（RRCConnectionReestablishmentComplete）Or RRC connections are established and completed
（RRCConnectionSetupComplete）Instruction is carried in message to notify eNB, eNB to be asked by user equipment information
（UEInformationRequest）Message asks UE to report RLF Report, and then UE is responded by user equipment information
（UEInformationResponse）Message reports RLF Report to eNB.
Fig. 1 is according to the schematic diagram one of the MRO scene detections of correlation technique, as shown in figure 1, user equipment（User
Equipment, referred to as UE）There occurs connection failure in first community（HOF or RLF）, then carried out in second community
RRC, which is rebuild, to be attempted.Second community receives the content that RRC is rebuild after trial message in message and may know that UE in first community
There occurs connection failure, then sends RLF INDICATION message to first community.First community receives RLFINDICATION
Content after message in message may know that UE is carried out there occurs connection failure in first community and in second community
RRC, which is rebuild, to be attempted.At this moment, first community can inquire about the context of its preservation, if it find that the UE is just to have been cut by first community
To second community, then it can determine that for this be the once switching too late from first community to second community, the source for initiating switching is small
Area is first community（I.e. oneself）, so without hair HANDOVER REPORT message；If it find that the UE is just by second community
Tangential first community, then it can determine that for this be the once too early switching from second community to first community, initiate the source of switching
Cell is second community, so HANDOVER REPORT message is sent out to second community, to notify second community that there occurs once
Switching too early；If it find that the UE is just by the 3rd cell（Different from first community and second community）Tangential first community,
It then can determine that for this be the once mistake switching from the 3rd cell to first community（Second community should be switched to）, initiate to cut
The cell-of-origin changed is the 3rd cell, so HANDOVER REPORT message is sent out to the 3rd cell, to notify the 3rd cell to occur
Once mistake switching.
Fig. 2 is according to the schematic diagram two of the MRO scene detections of correlation technique, as shown in Fig. 2 UE occurs in first community
Connection failure, subsequently into Idle state（idle）, RRC is subsequently carried out in the 4th cell and is successfully established.4th cell
Get after RLF Report according to content therein may know that UE in first community there occurs connection failure, then to first
Cell sends RLF INDICATION message, and carries the content in RLF Report and represent that the RLF Report come from RRC
Connection is established（Rather than RRC connection reconstructions）Instruction.After first community receives RLF INDICATION message, find in message
Containing the RLF Report after RRC connections foundation, it may know that UE is small first thus according to the content in RLF Report
There occurs connection failure in area, RRC is also carried out in which cell and has rebuild trial（It is assumed here that it is second community）, the UE
Which the cell-of-origin that the last time switches is（It is assumed here that it is the 3rd cell）, the last time switching initiate to connection failure when
Between be how many, the connection failure is HOF or RLF, and occur connection failure when wireless measurement result, occur connection failure
When positional information etc..At this moment, first community can be judged according to the content understood from RLF Report（Here first assume
It can determine that the connection failure is RLF according to relevant information in RLF Report, and it is related to the last switching, and RLF occurs
The reason for be MRO problems rather than covering problem）, if it find that the 3rd cell is equal to first community, then can determine that for this be one
The secondary switching too late from first community to second community, the cell-of-origin for initiating switching is first community（I.e. oneself）, so not having to
Send out HANDOVER REPORT message；If it find that the 3rd cell is equal to second community, then it can determine that as this it is once small from second
Area is to the too early switching of first community, and the cell-of-origin for initiating switching is second community, so to send out HANDOVER to second community
REPORT message, to notify second community that there occurs once switching too early；If it find that the 3rd cell is to be different from first community
With other cells of second community, then it can determine that for this be the once mistake switching from the 3rd cell to first community（It should cut
Change to second community）, the cell-of-origin for initiating switching is the 3rd cell, is disappeared so to send out HANDOVERREPORT to the 3rd cell
Breath, to notify the 3rd cell that there occurs once mistake switching.
It is as belonging to cell when above-mentioned RLF INDICATION message, the specific implementation of HANDOVER REPORT message
What eNB sent or received.
However, supporting D2D（Device to Device）In the network environment of communication, it is for the reason for initiation switching
Situation related D2D, such as UE1 and UE2 are carrying out conventional communications（Such as Fig. 3:User data interaction between UE is by core net
's）, switch to D2D to communicate by conventional communications when the distance between they are closer（User data interaction between UE without
Core net, but such as Fig. 4:Directly carried out between UE, or such as Fig. 5:Carried out between eNB, or such as Fig. 6:Carried out via in eNB）；
Or UE1 and UE2 is carrying out D2D communications, conventional communications are switched to by D2D communications when the distance between they are distant；Or
Person, UE1 and UE2 are carrying out D2D communications, another kind are switched to by a kind of D2D communication modes when the distance between they change
D2D communication modes（The conversion between communication mode as shown in Figure 4,5, 6）Deng.This will cause supporting the network of D2D communications
Occur the incorrect or inaccurate situation of testing result using existing MRO scene detection methods in environment, such as should
Including the switching too late of the statistics, too early switching, wrong cell switching statistics, so as to which the mobility pair to related neighboring interval occur
Parameter carries out incorrect or inaccurate negotiation adjustment.
The content of the invention
The invention provides a kind of optimization method and device, at least to solve supporting the net of D2D communications in correlation technique
The problem of statistical result is incorrect or inaccurate occurs using the MRO scene statistics methods of routine in network environment.
The embodiments of the invention provide a kind of optimization method, is included in the network environment for supporting D2D communications, UE is initiated
The cell-of-origin of cell switching receives the D2D relevant informations of network environment；Cell-of-origin is according to D2D relevant informations and MRO scenes
Testing result mobility parameters and/or D2D relevant informations are optimized.
Preferably, cell-of-origin according to the testing result of D2D relevant informations and MRO scenes to mobility parameters and/or D2D phases
Close information optimize including：Cell-of-origin determines MRO self-optimizing schemes according to the testing result of D2D relevant informations and MRO scenes,
Wherein MRO self-optimizings scheme includes at least one of：Whether count this MRO problem, whether count D2D correlations respectively
The MRO problems MRO problem related to non-D2D；Mobility parameters and/or D2D relevant informations are carried out according to MRO self-optimizings scheme
Optimization.
Preferably, in cell-of-origin according to the testing result of D2D relevant informations and mobile robustness optimization MRO scenes to movement
Before property parameter and/or D2D relevant informations optimize, in addition to：Cell-of-origin is according to the handover report received
HANDOVERREPORT message, the testing result for determining MRO scenes are that too early switching or wrong cell switch, wherein,
D2D relevant informations are carried in HANDOVER REPORT message.
Preferably, in cell-of-origin according to the HANDOVER REPORT message received, the testing result of MRO scenes is determined
Before being too early switching or wrong cell switching, in addition to：There occurs the first community of UE connection failures to receive RLF
INDICATION message, wherein, carry D2D relevant informations in RLF INDICATION message；First community is according to receiving
RLF INDICATION message, the testing result for determining MRO scenes is to switch too early；After first community determines UE connection failures
The second community of trial rebuild as cell-of-origin；First community sends HANDOVER REPORT message to cell-of-origin.
Preferably, in cell-of-origin according to the HANDOVER REPORT message received, the testing result of MRO scenes is determined
Before being too early switching or wrong cell switching, in addition to：There occurs the first community of UE connection failures to receive RLF
INDICATION message, wherein, carry D2D relevant informations in RLF INDICATION message；First community is according to receiving
RLF INDICATION message, the testing result for determining MRO scenes be wrong cell switching；First community is determined except first is small
Carry out rebuilding the 3rd cell outside the second community of trial behind area and UE connection failures as cell-of-origin；First community is small to source
Area sends HANDOVER REPORT message.
Preferably, before RLF INDICATION message is received there occurs the first community of UE connection failures, also wrap
Include：Second community receives the RRC connection re-establishments request RRCConnectionReestablishmentRequest of UE transmissions
After message, RLF INDICATION message is sent to first community, wherein
RRCConnectionReestablishmentRequest message carries the D2D relevant informations；Or second community receives
After the radio link failure report RLF Report that UE is sent, RLF INDICATION message is sent to first community, wherein
UE carries D2D relevant informations using UEInformationResponse message；Or the 4th cell receive UE transmission RLF
After Report, RLFINDICATION message is sent to first community, wherein, UE is disappeared using UEInformationResponse
Breath carries D2D relevant informations, and the 4th cell is that UE connection failures enter after idle idle states the cell accessed again.
Preferably, in the case where MRO self-optimizing schemes are not count this MRO problem, first community is not to cell-of-origin
Send HANDOVER REPORT message.
Preferably, in cell-of-origin according to the testing result of D2D relevant informations and MRO scenes to mobility parameters and/or D2D
Before relevant information optimizes, in addition to：Cell-of-origin determines MRO scenes according to the RLF INDICATION message received
Testing result be to switch too late, wherein, carry D2D relevant informations in RLF INDICATION message.
Preferably, D2D relevant informations include at least one of：Communication mode before switching, the communication mode after switching,
Communication mode before switching for instruction and/or the communication mode after switching are the configured informations of D2D communication modes.
The embodiments of the invention provide one kind to optimize device, applied to the cell-of-origin for having initiated UE cell switching, including：
Receiving module, in the network environment for supporting D2D communications, receiving the D2D relevant informations of network environment；Optimization module, use
According to D2D relevant informations letter related to mobility parameters and/or D2D to the testing result of mobile robustness optimization MRO scenes
Breath optimizes.
Preferably, optimization module includes：Determination sub-module, for the testing result according to D2D relevant informations and MRO scenes
MRO self-optimizing schemes are determined, wherein MRO self-optimizings scheme includes at least one of：Whether count this MRO problem, whether
The related MRO problems of the D2D MRO problem related to non-D2D is counted respectively；Optimize submodule, for according to MRO self-optimizing schemes
Mobility parameters and/or D2D relevant informations are optimized.
Preferably, said apparatus also includes：First determining module, for according to the handover report HANDOVER received
REPORT message, the testing result for determining MRO scenes are that too early switching or wrong cell switch, wherein, HANDOVER REPORT
D2D relevant informations are carried in message.
Preferably, said apparatus also includes：Second determining module, for being disappeared according to the RLF INDICATION received
Breath, the testing result for determining MRO scenes is to switch too late, wherein, the related letters of D2D are carried in RLF INDICATION message
Breath.
The present invention is in the network environment for supporting D2D communications, statistics for MRO problems and to intercell mobility parameter
Optimization, not only in view of MRO scenes, it is also contemplated that D2D relevant informations.Occur too late when therefore, for having used D2D
Switching, too early switching or wrong cell switching, can avoid the MRO scenes as routine from being counted, add MRO
The correctness and accuracy of scene statistics, and then ensure that and the mobility parameters and/or D2D relevant informations of related neighboring interval are entered
Row is correct and accurately optimizes.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram one according to the MRO scene detections of correlation technique；
Fig. 2 is the schematic diagram two according to the MRO scene detections of correlation technique；
Fig. 3 is the schematic diagram one according to the support D2D of the correlation technique network environments communicated；
Fig. 4 is the schematic diagram two according to the support D2D of the correlation technique network environments communicated；
Fig. 5 is the schematic diagram three according to the support D2D of the correlation technique network environments communicated；
Fig. 6 is the schematic diagram four according to the support D2D of the correlation technique network environments communicated；
Fig. 7 is the flow chart of optimization method according to embodiments of the present invention；
Fig. 8 is the schematic diagram according to the optimization method of the preferred embodiment of the present invention one；
Fig. 9 is the schematic diagram according to the optimization method of the preferred embodiment of the present invention two；
Figure 10 is the schematic diagram according to the optimization method of the preferred embodiment of the present invention three；
Figure 11 is the structured flowchart of optimization device according to embodiments of the present invention；
Figure 12 is the structured flowchart one of optimization device according to the preferred embodiment of the invention；
Figure 13 is the structured flowchart two of optimization device according to the preferred embodiment of the invention；
Figure 14 is the structured flowchart three of optimization device according to the preferred embodiment of the invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
The embodiments of the invention provide a kind of optimization method.Fig. 7 is the flow of optimization method according to embodiments of the present invention
Figure, as shown in fig. 7, comprises step S702 to step S704：
Step S702, in the network environment for supporting D2D communications, the cell-of-origin for having initiated UE cell switching receives net
The D2D relevant informations of network environment.
Step S704, cell-of-origin is according to the testing result of D2D relevant informations and MRO scenes to mobility parameters and/or D2D
Relevant information optimizes.
In correlation technique, system occurs using the MRO scene statistics methods of routine in the network environment for supporting D2D communications
Count the problem of result is incorrect or inaccurate.In the embodiment of the present invention, in the network environment for supporting D2D communications, asked for MRO
The statistics of topic and the optimization to intercell mobility parameter, not only in view of MRO scenes, it is also contemplated that D2D relevant informations.Cause
This, switching too late, too early switching or the wrong cell switching occurred during for having used D2D, can be avoided as routine
MRO scenes counted, add the correctness and accuracy of MRO scene statistics, and then ensure that to related neighboring interval
Mobility parameters and/or D2D relevant informations carry out correct and accurately optimization.
Flow as shown in Figure 7, step S704 propose to carry out with reference to both the testing result of MRO scenes and D2D relevant informations
Optimization, is just optimized rather than just according to the testing result of MRO scenes.Wherein, the MRO self-optimizing schemes for optimization can
It is a variety of to have, such as：It is related to non-D2D whether this MRO problem, whether respectively statistics D2D related MRO problem are counted
MRO problems.Modification relevant parameter is determined whether according to the statistical result of MRO self-optimizing schemes in follow-up optimization processing, such as moved
Dynamic property parameter, D2D relevant informations.It should be noted that as a preferred embodiment, above-mentioned statistical operation can be set
Different counters, if a MRO problem is counted, by counter values from adding one, if not counting the MRO problems, count
Number device numerical value keeps constant.Subsequently it is confirmed whether to change mobility parameters, D2D relevant informations etc. according to the counter values.
Flow as shown in Figure 7, before step S702, the cell-of-origin to switch needs first to determine the MRO scenes of detection
Type, it is contemplated that the cell-of-origin to switch can receive HANDOVER REPORT message, and then according to HANDOVER REPORT
Content in message determines the testing result of MRO scenes, it is therefore possible to use following judgment mode determines the detection of MRO scenes
As a result：When the cell-of-origin to switch receives HANDOVER REPORT message, the MRO scenes that this needs detects are determined
Testing result switches for switching too early or wrong cell, wherein, the related letters of D2D are carried in HANDOVER REPORT message
Breath.
Mentioned above, the cell-of-origin to switch can determine the detection of MRO scenes according to HANDOVER REPORT message
As a result, now, the cell-of-origin to switch can receive HANDOVER REPORT message from first community, wherein, first community
The cell of connection failure occurs for UE.Specifically, A to step E should to cell-of-origin transmission as follows for first community needs
HANDOVER REPORT message.
Step A, first community receives the RLF INDICATION message that second community is sent, wherein, RLF
Carry D2D relevant informations in INDICATION message, second community is the cell accessed after UE connection failures.
Step B, first community determines this MRO scene detected, wherein according to this according to RLF INDICATION message
The MRO scenes of secondary detection are different, three kinds of different states can occur, correspond to step C respectively to step E.
Step C, when the MRO scenes of this detection is switch too late, first community determines itself as cell-of-origin, it is not necessary to
Send HANDOVER REPORT message.
Step D, when MRO scenes of this detection are switching too early, first community determines second community as cell-of-origin, to
Second community sends HANDOVER REPORT message.
Step E, when the MRO scenes of this detection switch for wrong cell, first community determines the 3rd cell as source
Cell, HANDOVER REPORT message is sent to the 3rd cell, wherein, the 3rd cell is except above-mentioned first community and second small
Other cells outside area.
And before step A refers to that first community determines this MRO scene detected according to RLF INDICATION message,
Second community receives the RRC that UE is sent and rebuild after trial or RLF Report before step A, can just trigger corresponding operating, i.e.,
RLF INDICATION message is sent to first community；Or send RLF INDICATION from the 4th cell to first community
Message, the 4th cell are that UE connection failures enter the free time（IDLE）The cell accessed again after state, the 4th cell receive UE
After the RLF Report of transmission, RLF INDICATION message is sent to first community.
Specifically, when if second community receives the RRC reconstruction trials that UE is sent, UE is utilized
RRCConnectionReestablishmentRequest message carry D2D relevant informations, afterwards second community from
RRCConnectionReestablishmentRequest message obtains D2D relevant informations, and carries in RLF INDICATION
First community is sent in message.
Similarly, when second community or the 4th cell receive UE RLF Report, UE is utilized
UEInformationResponse message carries D2D relevant informations, afterwards second community or the 4th cell from
UEInformationResponse message obtains D2D relevant informations, and carries and the is sent in RLF INDICATION message
One cell.
In this example, UE carries D2D relevant informations using UEInformationResponse message, sends it to second
Cell or the 4th cell, it is contemplated that between UE and second community or the 4th cell can have different configured informations, different signalings
And the transmission of different data, therefore, how UE, which transmits D2D relevant informations, can various ways, now provide two kinds preferably
Processing method.
Method one
UE is in RRCConnectionReestablishmentComplete or RRCConnectionSetupComplete
Available RLF Report instruction is carried in message；
After second community or the 4th cell receive available RLF Report instruction, sent out to UE
UEInformationRequest message, wherein, UEInformationRequest message carries RLF Report requests and referred to
Show；
After UE receives UEInformationRequest message, returned to second community or the 4th cell
UEInformationResponse message, wherein, RLF Report are carried in UEInformationResponse message,
D2D relevant informations are carried in RLF Report.
Method two
UE is in RRCConnectionReestablishmentComplete or RRCConnectionSetupComplete
The instruction of available D2D relevant informations is carried in message；
After second community or the 4th cell receive the instruction of available D2D relevant informations, sent to UE
UEInformationRequest message, wherein, the request of D2D relevant informations is carried in UEInformationRequest message
Instruction；
UE is received after the request instruction of D2D relevant informations, it is preferable that to second community or the 4th cell in the present embodiment
UEInformationResponse message is returned, wherein, the related letters of D2D are carried in UEInformationResponse message
Breath.
In above-mentioned preferred embodiment, however, it is determined that MRO self-optimizings scheme for when not counting this MRO problem, then the
One cell need not send HANDOVER REPORT message to cell-of-origin.
In addition to HANDOVER REPORT message, the cell-of-origin that switches can also receive RLF INDICATION and disappear
Breath, can now judge MRO scenes according to the message.Specifically cell-of-origin is according to the RLF INDICATION message received,
It is determined that the MRO scenes detected are to switch too late, wherein, carry D2D relevant informations in RLF INDICATION message.
In the above-described embodiments, because D2D relevant informations play an important role for MRO scene detections, therefore, to protect
Demonstrate,prove the accuracy of D2D relevant informations, UE and minizone, each minizone message interaction process in, the related letters of D2D are transmitted several times
Breath, the step make it that the acquisition of each cell and UE for D2D relevant informations is more convenient, and ensure that D2D relevant informations
Accuracy.
The embodiment of the present invention all refers to D2D relevant informations in the whole text, and the information can include multinomial content, for example, before switching
Communication mode, switching after communication mode, for indicate switch before communication mode and/or the communication mode after switching be
The configured information of D2D communication modes.It should be noted that in actual applications, D2D relevant informations are not limited to above-mentioned enumerate
Several contents, it is also possible to determined according to performance of network environment, implementation environment, UE or other equipment etc. other kinds of
D2D relevant informations.
It is clearer for optimization method provided in an embodiment of the present invention is become apparent from illustrating, now it is entered with specific embodiment
Row explanation.
Preferred embodiment one
Contrasted for convenience of the MRO scene detection methods provided with correlation technique, this preferred embodiment one applies ring
Border is identical with correlation technique, i.e. the UE of this preferred embodiment one is also such as Fig. 1 institutes in the connection of minizone and switching mode
Show, the MRO scene detection methods that the present embodiment provides mainly include the following steps that 1）To step 5）.
1）UE is in first community（That is first community）In there occurs connection failure（HOF or RLF）.
2）UE is in second community（That is second community）Middle progress RRC, which is rebuild, to be attempted, and
D2D relevant informations are carried in RRCConnectionReestablishmentRequest message；Or reported to second community
RLFReport, D2D relevant informations are carried in UEInformationResponse message；Or UE connection failures enter idle shapes
Again the 4th cell is accessed after state（That is the 4th cell）, RLF Report are reported to the 4th cell,
D2D relevant informations are carried in UEInformationResponse message.
3）Second community is after receiving RRC and rebuilding trial or RLF Report, or the 4th cell is receiving RLF Report
Afterwards, understand that UE, there occurs connection failure, then sends RLF in first community to the affiliated eNB of first community according to its content
INDICATION message, carry D2D relevant informations.
4）After the affiliated eNB of first community receives RLF INDICATION message, it can be judged according to its content；As judged
To switch too late, then the cell-of-origin for initiating switching is first community oneself, so without hair HANDOVER REPORT message；
Such as it is judged to switching too early, then the cell-of-origin for initiating switching is second community, so to send out to the affiliated eNB of second community
HANDOVER REPORT message, to notify second community that there occurs once switching too early；Such as it is determined as that wrong cell switches, then
The cell-of-origin for initiating switching is other cells different from first community or second community, so will be to belonging to other cells
ENB sends out HANDOVER REPORT message, and there occurs a wrong cell to notify it to switch；In HANDOVER REPORT message
Carry D2D relevant informations.
5）The affiliated eNB in cell-of-origin for receiving HANDOVER REPORT message understands it is that there occurs once according to message content
Switching too early caused by oneself or wrong cell switching, but also need according to the D2D relevant informations carried in message come comprehensive analysis,
MRO self-optimizing schemes could be finally determined, such as：Including whether this MRO problem is counted；Or to having used D2D and not had
Counted respectively using D2D MRO problems；Then mobility parameters and/or D2D relevant informations is separately optimized.For too late
After switching, is not send out HANDOVER REPORT message, but the affiliated eNB in cell-of-origin should also combine D2D relevant information comprehensive analysis
MRO self-optimizing schemes could finally be determined.
In this preferred embodiment one, the affiliated eNB of cell for receiving RLF INDICATION message carries according in message
The content such as D2D relevant informations analyzed after, as determined including this MRO problem is not counted, then not to switching
The affiliated eNB hairs HANDOVER REPORT message in cell-of-origin.
Preferably, the D2D relevant informations in this preferred embodiment one can include following one or more：Whether be
The instruction of the related switchings of D2D（The related switchings of D2D refer to before switching or are D2D communication modes after switching, or are all before and after switching
D2D communication modes）, communication mode before switching（Each communication mode i.e. as shown in Figures 3 to 6）, communication mode after switching
Deng.
Preferably, step 2）In refer in UEInformationResponse message carrying D2D relevant informations, at it
Reason mode can be one of following mode.
Mode one, UE in RRCConnectionReestablishmentComplete or
Available RLF Report instruction is carried in RRCConnectionSetupComplete message；It is backward that eNB receives the instruction
UE hair UEInformationRequest message carries RLF Report request instructions；UE receives backward eNB and returned
UEInformationResponse message carries RLF Report, and D2D relevant informations are included in RLF Report.
Mode two, UE in RRCConnectionReestablishmentComplete or
The instruction of available D2D relevant informations is carried in RRCConnectionSetupComplete message；It is backward that eNB receives the instruction
UE hair UEInformationRequest message carries the request instruction of D2D relevant informations；UE receives backward eNB and returned
UEInformationResponse message carries D2D relevant informations.
Preferred embodiment two
This preferred embodiment two realizes MRO scene detection methods of the UE when RRC connection reconstructions are attempted, its network structure with
And the Organization Chart that UE is accessed and switched is as shown in figure 8, including the steps 1）To step 6）.
1）There occurs connection failure in first community by UE（HOF or RLF）.
2）UE needs to preserve the D2D relevant informations of the last switching.
3）UE carries out in second community RRC and rebuild to attempt, and is being sent to second community
D2D relevant informations are carried in RRCConnectionReestablishmentRequest message（Assuming that comprising be for D2D it is related
The instruction of switching）.
4）With reference to Fig. 1, second community is after RRCConnectionReestablishmentRequest message is received, root
Understand that UE, there occurs connection failure, then sends RLF in first community to the affiliated eNB of first community according to its content
INDICATION message, carry D2D relevant informations.
5）With reference to Fig. 1, after the affiliated eNB of first community receives RLF INDICATION message, can be sentenced according to its content
It is disconnected；Such as it is judged to switching too late, then the cell-of-origin for initiating switching is first community oneself, so without hair HANDOVER
REPORT message；Such as it is judged to switching too early, then the cell-of-origin for initiating switching is second community, so will be to belonging to second community
ENB sends out HANDOVER REPORT message, to notify second community that there occurs once switching too early；Such as it is determined as that wrong cell is cut
Change, then the cell-of-origin for initiating switching is the 3rd cell different from first community or second community, so will be to the 3rd cell institute
Belong to eNB hair HANDOVER REPORT message, there occurs a wrong cell to notify it to switch；HANDOVER REPORT message
Middle carrying D2D relevant informations.
6）Understand it is hair according to message content with reference to Fig. 1, the affiliated eNB in cell-of-origin for receiving HANDOVER REPORT message
Switching too early caused by oneself or wrong cell switching have been given birth to once, but this switching is D2D related, after comprehensive analysis,
Determine including this switching too early or wrong cell switching statistics not.
Preferred embodiment three
This preferred embodiment three realizes MRO scene detections when UE reports RLF Report after the completion of RRC connection reconstructions
The Organization Chart that method, its network structure and UE are accessed and switched is as shown in figure 9, including the steps 1）Extremely
Step 8）.
1）There occurs connection failure in first community by UE（HOF or RLF）.
2）UE needs to preserve the D2D relevant informations of the last switching.
3）UE carries out RRC in second community and rebuild successfully, and is being sent to second community
The instruction for indicating available RLF Report is carried in RRCConnectionReestablishmentComplete message.
4）For second community after RRCConnectionReestablishmentComplete message is received, discovery UE has can
With RLF Report, UEInformationRequest message is then passed through to ask UE to report RLF Report.
5）After UE receives UEInformationRequest message, by RLF Report by
UEInformationResponse message is carried and reports second community, and D2D relevant informations are included in RLF Report（Assuming that
Comprising being instruction for the related switchings of D2D）.
6）With reference to Fig. 1, after second community receives UEInformationResponse message, according to RLF therein
Report contents may know that UE, there occurs connection failure, then sends RLF in first community to the affiliated eNB of first community
INDICATION message, carry D2D relevant informations.
7）, can be according to RLF therein after the affiliated eNB of first community receives RLF INDICATION message with reference to Fig. 1
Report contents are judged；Such as it is judged to switching too late, then the cell-of-origin for initiating switching is first community oneself, so not
With hair HANDOVERREPORT message；Such as it is judged to switching too early, then the cell-of-origin for initiating switching is second community, so will be to
The affiliated eNB hairs HANDOVER REPORT message of second community, to notify second community that there occurs once switching too early；As judged
Switch for wrong cell, then the cell-of-origin for initiating switching is the 3rd cell different from first community or second community, so will
To the 3rd cell affiliated eNB hair HANDOVER REPORT message, there occurs a wrong cell to notify it to switch；
D2D relevant informations are carried in HANDOVER REPORT message.
8）Understand it is hair according to message content with reference to Fig. 1, the affiliated eNB in cell-of-origin for receiving HANDOVER REPORT message
Switching too early caused by oneself or wrong cell switching have been given birth to once, but further according to D2D relevant informations therein, recognize again
This switching is D2D related, after comprehensive analysis, determines that the ASSOCIATE STATISTICS number of the MRO problem related to D2D carries out adding 1.
Preferred embodiment four
This preferred embodiment four realizes MRO scene detections when UE reports RLF Report after the completion of RRC connections foundation
The Organization Chart that method, its network structure and UE are accessed and switched is as shown in Figure 10, including the steps 1）
To step 8）.
1）There occurs connection failure in first community by UE（HOF or RLF）, UE carried out in second community RRC rebuild lose
Lose, UE enters idle states.
2）UE needs to preserve the D2D relevant informations of the last switching.
3）UE carries out RRC connections in the 4th cell and is successfully established, and is being sent to the 4th cell
Carried in RRCConnectionSetupComplete message and indicate available RLF Report instruction and indicate available D2D
The instruction of relevant information.
4）4th cell finds that UE has available RLF after RRCConnectionSetupComplete message is received
Report and available D2D relevant informations, then send out UEInformationRequest message to UE and carry RLF Report requests
Instruction and the request instruction of D2D relevant informations.
5）After UE receives UEInformationRequest message, by RLF Report and D2D relevant informations（Assuming that include
Use D2D instruction）Carried by UEInformationResponse message and report the 4th cell.
6）With reference to Fig. 1, after the 4th cell receives UEInformationResponse message, according to RLF therein
Report contents may know that UE, there occurs connection failure, then sends RLF in first community to the affiliated eNB of first community
INDICATION message, carry D2D relevant informations.
7）, can be according to RLF therein after the affiliated eNB of first community receives RLF INDICATION message with reference to Fig. 1
Report contents are judged；Such as it is judged to switching too late, then the cell-of-origin for initiating switching is first community oneself, without hair
HANDOVER REPORT message；Such as it is judged to switching too early, then initiates the cell-of-origin of switching（3rd cell）With being rebuild
Cell（Second community）It is same, it is necessary to HANDOVER REPORT message be sent out to the affiliated eNB of second community, to notify second
There occurs once switching too early for cell；Such as it is determined as that wrong cell switches, then initiates the cell-of-origin of switching（3rd cell）It is different
In first community or second community, it is necessary to HANDOVER REPORT message be sent out to the affiliated eNB of the 3rd cell, to notify its generation
Wrong cell switching；D2D relevant informations are carried in HANDOVER REPORT message.
8）Understand it is hair according to message content with reference to Fig. 1, the affiliated eNB in cell-of-origin for receiving HANDOVER REPORT message
Switching too early caused by oneself or wrong cell switching have been given birth to once, but further according to D2D relevant informations therein, recognize again
This switching is D2D related, after comprehensive analysis, is determined including not counting this switching too early or wrong cell switching.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of optimization device, and the optimization device can be applied
In the cell-of-origin for having initiated UE cell switching and for realizing above-mentioned optimization method.Figure 11 is according to embodiments of the present invention excellent
Disguise the structured flowchart put, as shown in figure 11, including receiving module 112 and optimization module 114, its structure is carried out below detailed
Description.
Receiving module 112, in the network environment for supporting D2D communications, receiving the D2D relevant informations of network environment；
Optimization module 114, receiving module 112 is connected to, for the D2D relevant informations that are received according to receiving module 112 and MRO scenes
The D2D relevant informations that testing result receives to mobility parameters and/or receiving module 112 optimize.
Figure 12 is the structured flowchart one of optimization device according to the preferred embodiment of the invention, as shown in figure 12, the optimization
Module 114 includes：Determination sub-module 1142 and optimization submodule 1144, its structure is described in detail below.
Determination sub-module 1142, receiving module 112 is connected to, for the D2D relevant informations received according to receiving module 112
MRO self-optimizing schemes are determined with the testing result of MRO scenes, wherein MRO self-optimizings scheme includes at least one of：Whether unite
Count this MRO problem, whether count the related MRO problems of the D2D MRO problem related to non-D2D respectively；Optimize submodule
1144, determination sub-module 1142 and receiving module 112 are connected to, for the MRO self-optimizings determined according to determination sub-module 1142
The D2D relevant informations that scheme receives to mobility parameters and/or receiving module 112 optimize.
Figure 13 is the structured flowchart two of optimization device according to the preferred embodiment of the invention, as shown in figure 13, in addition to：The
One determining module 116, for according to the HANDOVER REPORT message received, the testing result for determining MRO scenes to be too early
Switching or wrong cell switching, wherein, carry D2D relevant informations in HANDOVER REPORT message.
Figure 14 is the structured flowchart three of optimization device according to the preferred embodiment of the invention, as shown in figure 9, also including：The
Two determining modules 118, for according to the RLF INDICATION message received, the testing result for determining MRO scenes to be too late
Switching, wherein, carry D2D relevant informations in RLF INDICATION message.
In summary, according to the abovementioned embodiments of the present invention, there is provided a kind of optimization method and device.The present invention is supporting
In the network environment of D2D communications, the statistics for MRO problems and the optimization to intercell mobility parameter, not only consider
MRO scenes, it is also contemplated that D2D relevant informations.Switching too late, the switching too early or wrong occurred when therefore, for having used D2D
By mistake cell switching, can avoid as routine MRO scenes counted, add MRO scene statistics correctness and
Accuracy, and then ensure that mobility parameters and/or D2D the relevant informations progress to related neighboring interval are correct and accurately excellent
Change.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
- A kind of 1. optimization method, it is characterised in that including：In the network environment that holding equipment communicates to equipment D2D, UE has been initiated cell switching cell-of-origin receive it is described The D2D relevant informations of network environment；Mobility is joined according to the testing result of the D2D relevant informations and mobile robustness optimization MRO scenes the cell-of-origin Several and/or described D2D relevant informations optimize；Wherein, the cell-of-origin according to the testing result of the D2D relevant informations and MRO scenes to mobility parameters and/or institute State D2D relevant informations optimize including：The cell-of-origin is according to the detection knot of the D2D relevant informations and the MRO scenes Fruit determines MRO self-optimizing schemes, wherein the MRO self-optimizings scheme includes at least one of：This MRO whether is counted to ask Topic, the related MRO problems of the D2D MRO problem related to non-D2D whether is counted respectively；According to the MRO self-optimizings scheme to moving Dynamic property parameter and/or the D2D relevant informations optimize.
- 2. optimization method according to claim 1, it is characterised in that in the cell-of-origin according to the D2D relevant informations Before being optimized with the testing result of MRO scenes to mobility parameters and/or the D2D relevant informations, in addition to：The source For cell according to the handover report HANDOVER REPORT message received, the testing result for determining the MRO scenes is to cut too early Change or wrong cell switches, wherein, the D2D relevant informations are carried in the HANDOVER REPORT message.
- 3. optimization method according to claim 2, it is characterised in that in the cell-of-origin according to the HANDOVER received REPORT message, before the testing result for determining the MRO scenes is too early switching or wrong cell switching, in addition to：There occurs the first community of the UE connection failures to receive Radio Link Failure instruction RLF INDICATION message, its In, the D2D relevant informations are carried in the RLF INDICATION message；The first community determines the testing result of the MRO scenes according to the RLF INDICATION message received It is to switch too early；The first community rebuild the second community of trial as the cell-of-origin after determining the UE connection failures；The first community sends the HANDOVER REPORT message to the cell-of-origin.
- 4. optimization method according to claim 2, it is characterised in that in the cell-of-origin according to the HANDOVER received REPORT message, before the testing result for determining the MRO scenes is too early switching or wrong cell switching, in addition to：There occurs the first community of the UE connection failures to receive RLF INDICATION message, wherein, the RLF The D2D relevant informations are carried in INDICATION message；The first community determines the testing result of the MRO scenes according to the RLF INDICATION message received It is wrong cell switching；The first community determine except carry out rebuilding after the first community and the UE connection failures trial second community it The 3rd outer cell is as the cell-of-origin；The first community sends the HANDOVER REPORT message to the cell-of-origin.
- 5. the optimization method according to claim 3 or 4, it is characterised in that there occurs the first of the UE connection failures Before cell receives RLF INDICATION message, in addition to：The second community receives the vertical request of radio resource control connection reestablishment that the UE is sent After RRCConnectionReestablishmentRequest message, the RLF is sent to the first community INDICATION message, wherein the RRCConnectionReestablishmentRequest message carries the D2D correlations Information；OrIt is small to described first after the second community receives the radio link failure report RLF Report that the UE is sent Area sends the RLF INDICATION message, wherein the UE is responded using user equipment information UEInformationResponse message carries the D2D relevant informations；OrAfter 4th cell receives the RLF Report that the UE is sent, the RLF is sent to the first community INDICATION message, wherein, the UE carries the D2D relevant informations, institute using UEInformationResponse message It is that the UE connection failures enter after idle idle states the cell accessed again to state the 4th cell.
- 6. the optimization method according to claim 3 or 4, it is characterised in that in the MRO self-optimizings scheme be not count this In the case of secondary MRO problems, the first community does not send the HANDOVER REPORT message to the cell-of-origin.
- 7. optimization method according to claim 1, it is characterised in that in the cell-of-origin according to the D2D relevant informations It is optimized to mobility parameters and/or the D2D relevant informations with the testing result of mobile robustness optimization MRO scenes Before, in addition to：The cell-of-origin determines the testing result of the MRO scenes according to the RLF INDICATION message received It is to switch too late, wherein, the D2D relevant informations are carried in the RLF INDICATION message.
- 8. according to the optimization method described in any one of Claims 1-4 or claim 7, it is characterised in that the D2D phases Closing information includes at least one of：Communication mode before switching, the communication mode after switching, for indicating the switching before Communication mode after communication mode and/or the switching is the configured information of D2D communication modes.
- 9. one kind optimization device, applied to the cell-of-origin for having initiated UE cell switching, it is characterised in that including：Receiving module, in the network environment that is communicated in holding equipment to equipment D2D, receiving the D2D phases of the network environment Close information；Optimization module, for according to the testing result of the D2D relevant informations and mobile robustness optimization MRO scenes to mobility Parameter and/or the D2D relevant informations optimize；Wherein, the optimization module includes：Determination sub-module, for the inspection according to the D2D relevant informations and the MRO scenes Survey result and determine MRO self-optimizing schemes, wherein the MRO self-optimizings scheme includes at least one of：Whether this MRO is counted Problem, the related MRO problems of the D2D MRO problem related to non-D2D whether is counted respectively；Optimize submodule, for according to MRO self-optimizings scheme optimizes to mobility parameters and/or the D2D relevant informations.
- 10. optimization device according to claim 9, it is characterised in that also include：First determining module, connect for basis The handover report HANDOVER REPORT message received, the testing result for determining the MRO scenes are that too early switching or mistake are small Area switches, wherein, the D2D relevant informations are carried in the HANDOVER REPORT message.
- 11. optimization device according to claim 10, it is characterised in that also include：Second determining module, connect for basis The RLF INDICATION message received, the testing result for determining the MRO scenes are to switch too late, wherein, the RLF The D2D relevant informations are carried in INDICATION message.
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| CN104918299B (en) * | 2014-03-14 | 2020-04-17 | 北京三星通信技术研究有限公司 | Method for supporting UE access control |
| CN104540159A (en) * | 2015-01-30 | 2015-04-22 | 深圳酷派技术有限公司 | Reporting method, reporting system, and resource configuration method and system |
| US10904725B2 (en) * | 2018-01-12 | 2021-01-26 | Qualcomm Incorporated | Enhanced physical layer performance by inter-service information |
| CN110831081B (en) * | 2018-08-10 | 2022-01-28 | 展讯通信（上海）有限公司 | Switching information reporting method, switching robustness optimizing method, switching information reporting device, switching robustness optimizing device, storage medium, user equipment and base station |
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| 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 |
| CN102204392A (en) * | 2008-09-05 | 2011-09-28 | 诺基亚西门子通信公司 | Use of off period of drx for direct peer to peer communication in a cell |
| EP2445257A1 (en) * | 2010-10-20 | 2012-04-25 | Nokia Corporation | Delayed and conditional transport switch |
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| CN102204392A (en) * | 2008-09-05 | 2011-09-28 | 诺基亚西门子通信公司 | Use of off period of drx for direct peer to peer communication in a cell |
| 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 |
| EP2445257A1 (en) * | 2010-10-20 | 2012-04-25 | Nokia Corporation | Delayed and conditional transport switch |
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