CN104053202B - Subzone main scramble conflict set recognition, soft handover and list generation method and device - Google Patents
Subzone main scramble conflict set recognition, soft handover and list generation method and device Download PDFInfo
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- CN104053202B CN104053202B CN201310078515.9A CN201310078515A CN104053202B CN 104053202 B CN104053202 B CN 104053202B CN 201310078515 A CN201310078515 A CN 201310078515A CN 104053202 B CN104053202 B CN 104053202B
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Abstract
The invention discloses a kind of subzone main scramble conflict set recognition, soft handover and list generation method and device, it is applied in the system without 2 or more cells for repeating covering containing identical main scrambler, the conflict set recognition method includes：By node synchronizing process, RNC obtains System Frame Number (SFN)-SFN observed time differences between any two cell；In the measurement report that RNC is reported from UE, select a cell as Target cell；And the frame between the downlink Dedicated Physical control channel being had built up according to the UE carried in measurement report the Target cell SFN and UE measured is partially inclined with code, obtains the SFN deviations between UE current serving cell and Target cell；SFN deviations between serving cell and Target cell are matched with the serving cell got by node synchronizing process with the SFN-SFN observed time differences between Target cell, confirm the identification information of Target cell by RNC.
Description
Technical field
The present invention relates to UMTS, (Universal Mobile Telecommunications System, General Mobile are logical
Letter system) a kind of self-organizing network more particularly to subzone main scramble conflict set recognition, soft handover and list generation method and dress
It sets.
Background technology
When UE (User Equipment, user equipment) executes soft handover, distinguished by subzone main scramble adjacent with frequency
Area, this requires the subzone main scrambles of homogeneous-frequency adjacent-domain cannot be identical.But in a umts network, in addition to ensure adjacent two cell
Main scrambler do not repeat outer, also to ensure a heavy adjacent area, the main scrambler in adjacent area of double adjacent area and triple adjacent areas cannot repeat.If
Aforementioned condition cannot meet, when UE carries out soft handover, RNC (Radio Network Controller, wireless network control
Device) adjacent area of a heavy adjacent area, double adjacent area, triple adjacent areas can not be distinguished by main scrambler, this may will appear due to RNC
Mistake in judgment and the case where cause UE accidentally to cut.
As shown in Figure 1, cell A and cell B is homogeneous-frequency adjacent-domain, RNC is respectively that cell A and cell B distribute different scramblers
100 and 101, when otherwise user is in switch area, cell A and cell B cannot be distinguished in RNC.
As shown in Fig. 2, in current UMTS network, cell A (main scrambler 100) and cell B (main scrambler 101), cell A
It cannot be repeated with the main scrambler of cell C (main scrambler 102), and the main scrambler of cell B and cell C can not repeat, i.e., one weight is adjacent
The main scrambler in adjacent area in area cannot repeat.If cell B is identical as the main scrambler of cell C, for UE when carrying out soft handover, RNC can not
It may cause accidentally to cut due to RNC mistake in judgment come distinguishing cell B and cell C, UE by main scrambler.
As shown in figure 3, in current UMTS network, cell C (main scrambler 102) and cell D (the main scramblers of double adjacent area
103) main scrambler cannot be identical.If cell C is identical as the main scrambler of cell D, when carrying out soft handover, RNC can not lead to UE
Crossing main scrambler and coming distinguishing cell C and cell D, UE may cause accidentally to cut due to RNC mistake in judgment.
As shown in figure 4, in current UMTS network, cell D (main scrambler 103) and cell E (the main scramblers of triple adjacent areas
104) main scrambler cannot be identical.If cell D is identical as the main scrambler of cell E, when carrying out soft handover, RNC can not lead to UE
Crossing main scrambler and coming distinguishing cell D and cell E, UE may cause accidentally to cut due to RNC mistake in judgment.
Net can be passed through since distance is closer between adjacent area for the main scrambler problem in the adjacent area of a heavy adjacent area, double adjacent area
Network is planned and the network optimization ensures that subzone main scramble does not repeat.And the problem of adjacent area main scrambler multiplexing of triple adjacent areas is difficult thorough
Bottom solves, and existing distribution method is not it is difficult to ensure that the main scrambler in the adjacent area of triple adjacent areas repeats.And the presence meeting of triple adjacent areas
It is difficult to improve to lead to subzone main scramble reusability.In the extensive application of covering close quarters, especially micro-base station, it will occur more
More triple adjacent areas, this problem will be protruded more.
In a umts network, UE is during carrying out soft handover, radio network controller (Radio Network
Controller, referred to as RNC) it can only indicate the cell that UE is switched in activation collection (Active Set), and can not be switched to
Cell in detection collection (Detected Set).If the network side leakage adjacent area of certain cell, RNC if, can not execute switching stream
Journey, it is likely that cause call drop.
During existing UMTS network is built, it is necessary to which the main scrambler of the good each cell of planning in advance waits for the network operation
And then the problems such as being multiplexed extremely to adjacent area leakage, scrambler, optimizes, and cannot be automatically generated neighboring cell list, efficiency is low and consumes
Fei Gao.
In conclusion the main scrambler of triple adjacent areas easily causes scrambler multiplexing, 512 main scrambler reusabilities can not improve,
Can not support to be switched to cell that detection concentrates, can not these problems of automatic identification adjacent area be always in UMTS network planning still
Unsolved problem.
Invention content
The present invention provides a kind of subzone main scramble conflict set recognition, soft handover and neighboring cell list generate method and device,
To solve the problems, such as the main scrambler multiplexing in triple adjacent areas.
To solve the above problems, the present invention provides a kind of method of subzone main scramble conflict set recognition, applied to containing phase
In system with 2 or more the cells without repetition covering of main scrambler, including：
By node synchronizing process, radio network controller (RNC) obtains the System Frame Number between any two cell
(SFN)-SFN observed time differences；
The RNC selects a cell as Target cell from the measurement report that user equipment (UE) reports；And according to
The downlink Dedicated Physical that the Target cell SFN that the UE carried in the measurement report the is measured and UE has built up
The inclined OFF of frame between control channel (DPCCH)targetWith the inclined Tm of codetarget, obtain the current serving cells of the UE and the mesh
Mark the SFN deviations between cell；
The RNC is synchronous with by the node by the SFN deviations between the serving cell and the Target cell
The serving cell that journey is got is matched with the SFN-SFN observed time differences between the Target cell, confirms the mesh
Mark the identification information of cell.
Further,
It is described by node synchronizing process, RNC obtains the SFN-SFN observed time differences between any two cell, specifically
Including：
For each node B (NodeB) of subordinate, the RNC send the descendant node synchronization frame containing T1 to
NodeB；Wherein, T1 is the RNC frame numbers that the RNC sends the descendant node synchronization frame moment；
Response upstream node synchronization frame is to the RNC after the NodeB is received, wherein carrying T2 and T3；Wherein, T2 is institute
The NodeB frame numbers that NodeB receives the descendant node synchronization frame moment are stated, T3 is to send the upstream node synchronization frame moment
NodeB frame numbers；
The RNC by T2-T1+T4-T3 calculate the RNC RNC frame numbers and the NodeB NodeB frame numbers it
Between deviation；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
For any two cell, the RNC is according to the RNC frame numbers of itself with the service NodeB's of the two minizones
Deviation between NodeB frame numbers obtains the SFN-SFN observed time differences of the two cells.
Further,
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, it is small to obtain the current services of the UE
SFN deviations between area and the Target cell, specifically include：
UE knows the SFN for being presently in serving cell by cell search process；
During wireless heterogeneous networks (RRC) are connected and established, the RNC is by RRC information by the special of the acquiescence of selection
The UE is issued with physical channel deviant (DOFF)；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The RNC obtains the OFF of the Target celltargetAnd TmtargeteAfterwards, with the OFF of the serving cellsourceWith
TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
Correspondingly, it the present invention also provides a kind of method of the soft handover of detection collection cell, is disturbed applied to containing identical master
In the system without 2 or more cells for repeating covering of code, including：
By node synchronizing process, radio network controller (RNC) obtains the System Frame Number between any two cell
(SFN)-SFN observed time differences；
The RNC selects a cell as Target cell from the measurement report that user equipment (UE) reports；And according to
The downlink Dedicated Physical that the Target cell SFN that the UE carried in the measurement report the is measured and UE has built up
The inclined OFF of frame between control channel (DPCCH)targetWith the inclined Tm of codetarget, obtain the current serving cells of the UE and the mesh
Mark the SFN deviations between cell；
The RNC is synchronous with by the node by the SFN deviations between the serving cell and the Target cell
The serving cell that journey is got is matched with the SFN-SFN observed time differences between the Target cell, confirms the mesh
Mark the identification information of cell；
The RNC determines that the Target cell can switch, and the target is asked by sending wireless link request
The serving BS of cell is the wireless link distribution resource newly increased, and the Target cell, which is increased to UE activation, to be concentrated.
Further, the method further includes：
The Target cell as described in judging be not belonging to as described in UE neighboring cell list in cell, then confirming that the target is small
After the identification information in area, the Target cell is added in the neighboring cell list of the UE.
Further,
It is described by node synchronizing process, RNC obtains the SFN-SFN observed time differences between any two cell, specifically
Including：
For each node B (NodeB) of subordinate, the RNC send the descendant node synchronization frame containing T1 to
NodeB；Wherein, T1 is the RNC frame numbers that the RNC sends the descendant node synchronization frame moment；
Response upstream node synchronization frame is to the RNC after the NodeB is received, wherein carrying T2 and T3；Wherein, T2 is institute
The NodeB frame numbers that NodeB receives the descendant node synchronization frame moment are stated, T3 is to send the upstream node synchronization frame moment
NodeB frame numbers；
The RNC is calculated by T2-T1+T4-T3 between the RNC frame numbers of the RNC and the NodeB frame numbers of the NodeB
Deviation；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
For any two cell, the RNC is according to the RNC frame numbers of itself with the service NodeB's of the two minizones
Deviation between NodeB frame numbers obtains the SFN-SFN observed time differences of the two cells.
Further,
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, it is small to obtain the current services of the UE
SFN deviations between area and the Target cell, specifically include：
The UE knows the SFN for being presently in serving cell by cell search process；
During wireless heterogeneous networks (RRC) are connected and established, the RNC is by RRC information by the special of the acquiescence of selection
The UE is issued with physical channel deviant (DOFF)；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC：
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The RNC obtains the OFF of the Target celltargetAnd TmtargeteAfterwards, with the OFF of the serving cellsourceWith
TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
Correspondingly, the present invention also provides a kind of methods of main scrambler distribution, including：
For the node B (NodeB) of main scrambler to be allocated, radio network controller (RNC) is completed to save with the NodeB
After point synchronizes, main scrambler is randomly assigned for the cell in the NodeB service ranges；
For the cell in the NodeB service ranges, by node synchronizing process, the RNC obtains the cell and its
System Frame Number (SFN)-SFN observed time differences between his cell, and the location information of the NodeB is calculated accordingly；
The RNC receives the measurement report that user equipment (UE) reports；As described in containing in the measurement report as described in judging
The information of cell in NodeB service ranges, then according to the SFN of the UE carried in the measurement report the cells measured
The inclined OFFtarget of frame and code between the downlink Dedicated Physical control channel (DPCCH) being had built up with the UE is inclined
Tmtarget obtains the SFN deviations between UE current serving cell and the cell, and calculates the position of the NodeB accordingly
Confidence ceases；
The RNC is and same by the node by according to the location information of the calculated NodeB of the measurement report
The location information for the NodeB that step process is got is matched, and such as the two is consistent, then is confirmed as the NodeB distribution
Main scrambler is correct.
Further,
It is described by node synchronizing process, the RNC obtains the SFN-SFN observation times between the cell and other cells
Difference specifically includes：
An any other NodeB of NodeB and subordinate for the main scrambler to be allocated, the RNC are sent respectively
Descendant node synchronization frame containing T1 is to NodeB；Wherein, T1 is the RNC that the RNC sends the descendant node synchronization frame moment
Frame number；
Response upstream node synchronization frame is to the RNC after NodeB is received, wherein carrying T2 and T3；Wherein, T2 is described
NodeB receives the NodeB frame numbers at the descendant node synchronization frame moment, and T3 is to send the upstream node synchronization frame moment
NodeB frame numbers；
The RNC is calculated by T2-T1+T4-T3 between the RNC frame numbers of the RNC and the NodeB frame numbers of the NodeB
Deviation；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
NodeB's and subordinate for the main scrambler to be allocated is any other, and the RNC is according to the RNC frame numbers of itself
Deviation between the NodeB frame numbers of the service NodeB of the two minizones, when obtaining the SFN-SFN observations of the two cells
Between it is poor.
Further,
The RNC is according to the SFN and OFF for carrying the cell that the UE is measured in the measurement reporttargetAnd
Tmtarget, the SFN deviations between the current serving cells of the UE and the cell are obtained, are specifically included：
The UE knows the SFN for being presently in serving cell by cell search process；
During wireless heterogeneous networks (RRC) are connected and established, the RNC is by RRC information by the special of the acquiescence of selection
The UE is issued with physical channel deviant (DOFF)；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the cell in the NodeB service ranges of the main scrambler to be allocated by following formulatargetWith
TmtargetAnd it is reported to the RNC：
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The RNC obtains the OFF in the NodeB service ranges of the main scrambler to be allocatedtargetAnd TmtargeteAfterwards, with
The OFF of the serving cellsourceAnd TmsourceIt compares, obtains the NodeB of the serving cell and the main scrambler to be allocated
The deviation of the SFN of cell in service range.
Correspondingly, the present invention provides a kind of radio network controllers, are covered without repetition applied to containing identical main scrambler
In the system of 2 or more cells of lid, including：
Observed time difference acquisition module, for by node synchronizing process, obtaining the system-frame between any two cell
Number (SFN)-SFN observed time differences；
SFN deviation acquisition modules, for from the measurement report that user equipment (UE) reports, selecting a cell as mesh
Mark cell；And it is had built up according to the UE carried in the measurement report the Target cell SFN and UE measured
Downlink Dedicated Physical control channel (DPCCH) between the inclined OFF of frametargetWith the inclined Tm of codetarget, obtain the current clothes of the UE
SFN deviations between cell of being engaged in and the Target cell；
Matching module, the serving cell for getting the SFN deviations acquisition module and the Target cell
Between SFN deviations, the service got by the node synchronizing process with the observed time difference acquisition module is small
SFN-SFN observed time differences between area and the Target cell are matched, and confirm the identification information of the Target cell.
Further,
The observed time difference acquisition module is used to, by node synchronizing process, obtain the SFN- between any two cell
SFN observed time differences, specifically include：
The observed time difference acquisition module is used for each node B (NodeB) for subordinate, sends containing under T1
Row node synchronization frame is to NodeB；Wherein, T1 is that the observed time difference acquisition module sends the descendant node synchronization frame moment
RNC frame numbers；It is additionally operable to after receiving the response that the NodeB is returned, the RNC of the RNC is calculated by T2-T1+T4-T3
Deviation between frame number and the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is the NodeB
The NodeB frame numbers at the descendant node synchronization frame moment are received, T3 is the NodeB frames for sending the upstream node synchronization frame moment
Number；T4 is the RNC frame numbers that the observed time difference acquisition module receives the upstream node synchronization frame moment that the NodeB is reported；
It is additionally operable to for any two cell, according to the NodeB frame numbers of the RNC frame numbers of itself and the service NodeB of the two minizones
Between deviation, obtain the SFN-SFN observed time differences of the two cells.
Further,
The SFN deviations acquisition module, for according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between the serving cell current UE and the Target cell, specifically include：
The SFN deviations acquisition module, for during wireless heterogeneous networks (RRC) are connected and established, passing through RRC information
The dedicated physical channel deviant (DOFF) of the acquiescence of selection is issued into UE；Wherein, the UE is known by cell search process
It is presently in the SFN of serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The OFF that SFN deviation acquisition modules are stated for obtaining the Target celltargetAnd TmtargeteAfterwards, with it is described
The OFF of serving cellsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
Further, the radio network controller further includes：
Handover module passes through for determining that the Target cell can switch and sends wireless link request request
The serving BS of the Target cell is the wireless link distribution resource newly increased, and the Target cell is increased to UE activation collection
In.
Further,
The handover module is additionally operable in the cell for judging that the Target cell is not belonging in the neighboring cell list of the UE,
Then after the identification information for confirming the Target cell, the Target cell is added in the neighboring cell list of the UE.
In addition, the present invention also provides a kind of radio network controllers, including：
Main scrambler distribution module is completed to save for the node B (NodeB) for main scrambler to be allocated with the NodeB
After point synchronizes, main scrambler is randomly assigned for the cell in the NodeB service ranges；
First position information computational module, for for the cell in the NodeB service ranges, being synchronized by node
Journey obtains System Frame Number (SFN)-SFN observed time differences between the cell and other cells, and calculates accordingly described
The location information of NodeB；
Second position information computational module, the measurement report reported for receiving user equipment (UE)；As described in judging
Information containing the cell in the NodeB service ranges in measurement report, then according to described in being carried in the measurement report
Frame between the downlink Dedicated Physical control channel (DPCCH) that the SFN and the UE for the cell that UE is measured have built up is inclined
OFFtargetWith the inclined Tm of codetarget, the SFN deviations between UE current serving cell and the cell are obtained, and calculate institute accordingly
State the location information of NodeB；
Matching module, for by the location information of the calculated NodeB of the first position information computational module, with
The location information of the calculated NodeB of second position information computational module is matched, and such as the two is consistent, then confirms
Main scrambler for NodeB distribution is correct.
Further,
The first position information computational module is used to, by node synchronizing process, obtain between the cell and other cells
SFN-SFN observed time differences, specifically include：
The first position information computational module be used for for the main scrambler to be allocated NodeB and subordinate other
Anticipate a NodeB, sends the descendant node synchronization frame containing T1 respectively to NodeB；Wherein, T1 is the first position information meter
Calculate the RNC frame numbers that module sends the descendant node synchronization frame moment；
It is additionally operable to after receiving the response that the NodeB is replied, the RNC of the RNC is calculated by T2-T1+T4-T3
Deviation between frame number and the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is that the NodeB is received
To the NodeB frame numbers at the descendant node synchronization frame moment, T3 is the NodeB frames for sending the upstream node synchronization frame moment
Number；T4 is the RNC frames that the first position information computational module receives the upstream node synchronization frame moment that the NodeB is reported
Number；
Be additionally operable to the subordinate of an any other NodeB NodeB and to(for) the main scrambler to be allocated, according to itself
Deviation between RNC frame numbers and the NodeB frame numbers of the service NodeB of the two minizones, obtains the SFN-SFN of the two cells
Observed time difference.
Further,
The second position information computational module is used for according to the OFF carried in the measurement reporttargetAnd Tmtarget,
The SFN deviations between the current serving cells of the UE and the Target cell are obtained, are specifically included：
The second position information computational module is used to during wireless heterogeneous networks (RRC) are connected and established, pass through RRC
The dedicated physical channel deviant (DOFF) of the acquiescence of selection is issued UE by message；Wherein, the UE passes through cell search process
Know the SFN for being presently in serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The OFF that SFN deviation acquisition modules are stated for obtaining the Target celltargetAnd TmtargeteAfterwards, with it is described
The OFF of serving cellsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
After applying the present invention, the reusability that can significantly improve subzone main scramble in UMTS network, enables UE to be examined
Survey the switching of collection.It uses the present invention that can automatically generate neighboring cell list with automatic identification adjacent area, greatly improves network ruleization
With the efficiency of the network optimization.
Description of the drawings
Fig. 1 is the main scrambler distribution schematic diagram in homogeneous-frequency adjacent-domain in existing network；
Fig. 2 is the main scrambler distribution schematic diagram in adjacent area of a weight adjacent area in existing network；
Fig. 3 is the main scrambler distribution schematic diagram in adjacent area of double adjacent area in existing network；
Fig. 4 is the main scrambler distribution schematic diagram in adjacent area of triple adjacent areas in existing network；
Fig. 5 is the method flow diagram of the main scrambling conflict identification of cell in the embodiment of the present invention；
Fig. 6 is in the embodiment of the present invention be non-overlapping covering one weight adjacent area distribution the main scrambler schematic diagram in adjacent area；
Fig. 7 is interior joint synchronizing process flow chart of the embodiment of the present invention；
Fig. 8 is synchronizing process flow chart of eating dishes without rice or wine in the embodiment of the present invention；
Fig. 9 is in the embodiment of the present invention be non-overlapping covering double adjacent area distribution the main scrambler schematic diagram in adjacent area；
Figure 10 is in the embodiment of the present invention be non-overlapping covering triple adjacent areas distribution the main scrambler schematic diagram in adjacent area；
Figure 11 is the soft handoff procedure of UMTS network detection collection cell in the embodiment of the present invention；
Figure 12 is UMTS network automatic identification adjacent area flow in the embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention
Embodiment be described in detail.It should be noted that in the absence of conflict, in the embodiment and embodiment in the application
Feature mutually can arbitrarily combine.
In the present embodiment, OFF the and TM information that RNC can be reported by the time difference information and UE for matching minizone, knows
The descending main scrambling code not conflicted, and collection switching and Automatic Optimal neighboring cell list are detected according to the information.Wherein, OFF is
The downlink DPCCH that the Target cell SFN (System Frame Number, System Frame Number) that UE is measured and UE has built up
Frame between (Dedicated Physical Control CHannel, Dedicated Physical Control Channel) is inclined, and TM is what UE was measured
Code between the downlink DPCCH that Target cell SFN and UE have built up is inclined.
In the present embodiment, a kind of method of subzone main scramble conflict set recognition is suitable for containing identical main scrambler without weight
In the system of 2 or more the cells covered again, as described in Figure 5, including：
Step 1：By node synchronizing process, RNC obtains the SFN-SFN observed time differences between any two cell；
Step 2：After RNC receives the measurement report that UE is sent, therefrom select an adjacent area as Target cell.RNC according to
The OFF of the Target cell carried in the measurement reporttargetAnd TmtargetValue obtains serving cell and be somebody's turn to do that UE is currently located
SFN deviations between Target cell；
Step 3：RNC by above-mentioned deviation with by node synchronize the serving cell that is currently located of the UE that gets it is each with other
Observed time difference between neighboring community is matched, and determines the Target cell on earth and be multiple cells there are main scrambling conflict
Which of, that is, the identical co-frequency cell of main scrambler is excluded, is recognized accurately that there are the marks of the Target cell of main scrambling conflict
Know information.
After completing above-mentioned subzone main scramble conflict set recognition, RNC judges the Ec/No of Target cell and serving cell, if
Meet switching condition, be carried out soft handover, Target cell, which is added to UE activation, to be concentrated, and the soft handover of detection collection cell is completed.
In addition, after completing above-mentioned subzone main scramble conflict set recognition, neighboring cell list can be added in above-mentioned Target cell by RNC,
Automatically generate neighboring cell list.
The implementation method of self-organizing network of the present invention is described in further detail below in conjunction with the accompanying drawings：
As shown in fig. 6, in a umts network, cell A (main scrambler 100) and cell B (main scrambler 101), cell A and cell
The main scrambler of C (main scrambler 101) cannot repeat, and the main scrambler of cell B (main scrambler 101) and cell C (main scrambler 101) can phase
Together, i.e., the main scrambler of a weight adjacent area of non-overlapping covering can be identical.It is identical that RNC can distinguish main scrambler by the following method
Adjacent area：
(1) node synchronizing process
As shown in fig. 7, for each NodeB of RNC subordinate, node synchronizing process includes：
Step 1：RNC sends the DL NODE SYNCHRONISATION containing T1 to the NodeB, and (descendant node synchronizes
Frame)；Wherein, T1 is the RFN (RNC Frame Number, RNC frame number) that RNC sends the descendant node synchronization frame moment；
Step 2：NodeB receive after response UL NODE SYNCHRONISATION (upstream node synchronization frame) (containing T2 with
T3 RNC) is given, wherein：T2 is BFN (NodeB the Frame Number, node B that NodeB receives the descendant node synchronization frame moment
Frame number), T3 is the BFN for sending the upstream node synchronization frame moment；
Step 3：RNC can be calculated by formula T2-T1+T4-T3 and be transmitted round-trip delay, using the value of the time delay as
Deviation between the RFN of RNC and the BFN of the NodeB.Wherein, T4 is the upstream node synchronization frame that RNC receives that the NodeB is reported
The RFN at moment.
After the above steps, RNC can obtain the deviation between the BFN of each NodeB of RFN and its subordinate.
For each NodeB, since BFN and SFN (System Frame Number, System Frame Number) differs TCell, so
It can know the deviation between the SFN of any two cell under this RNC by the difference between RFN and the BFN deviations of each NodeB,
This deviation is exactly so-called SFN-SFN observed time differences.
(2) air interface synchronization process
As shown in figure 8, RNC pass through air interface synchronization process obtain current service cell SFN and Target cell SFN between it is inclined
Difference includes the following steps：
Step 1：UE can know the time reference for being presently in serving cell by cell search process, that is, service
The SFN of cell.During RRC (Radio Resource Control, wireless heterogeneous networks) connections foundation, RNC can be selected
One DOFF (Default DPCH Offset Value, the dedicated physical channel deviant of acquiescence), should by RRC information
DOFF issues UE.UE obtains CFN according to formula 1, and the OFF of serving cell is obtained by formula 2sourceAnd Tmsource。
Formula 1：CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
Formula 2：OFF+Tm=(SFN-CFN) Mod256
Step 2：UE measures the SFN of Target celltargetTime deviation between the dedicated link having built up.Method
It is as follows：The time T of the uplink DPCCH of UE transmittingsUETXWith downlink receiving time (DLDPCHnom) on the basis of, and fixation is delayed
1024 chip (T0), as shown in formula 3.UE obtains the OFF of Target cell by formula 4targetAnd Tmtarget, and be reported to
RNC；
Formula 3：DLDPCHnom=TUETX-T0
Formula 4：OFF+Tm=(SFN-DLDPCHnom)Mod256；
Step 3：RNC obtains Target cell OFFtargetAnd TmtargetAfterwards, with the serving cell that is obtained in step 1
OFFsourceAnd TmsourceIt compares, so that it may to obtain the deviation of serving cell and Target cell SFN.
(3) RNC judging process
The deviation of SFN between serving cell and Target cell that RNC is got with air interface synchronization process, and passes through node
The serving cell that synchronizing process is got is matched with the SFN-SFN observed time differences of Target cell, and then by the target
Cell distinguishes from its other cell there are main scrambling conflict.In scene as shown in FIG. 6, cell B and cell C
Main scrambler to be all 101, RNC can determine that UE is to be cut toward cell B switching or into cell C by above-mentioned matching result
It changes.
After the above method, for the adjacent area (cell C and cell D) of double adjacent area as shown in Figure 9, RNC can divide
With identical scrambler 102.For the adjacent area (cell D and cell E) of triple adjacent areas as shown in Figure 10, RNC can distribute identical
Scrambler 103.
As shown in figure 11, the service NodeB of RNC and serving cell, the service NodeB of Target cell complete node it is synchronous it
Afterwards, the SFN-SFN observed time differences between serving cell and Target cell are obtained.In CELL_DCH (cell private channel) shape
The UE of state measures the SFN of Target celltargetTime deviation between the dedicated link having built up, it is small to be calculated target
The OFF in areatargetAnd TmtargetRNC is reported to by measurement report afterwards, soft handover judgement is carried out by RNC.Although Target cell with
Neighboring BS relationship is not present in serving cell, and RNC can also calculate Target cell and serving cell by aforementioned air interface synchronization process
Time migration, matched with existing SFN-SFN observed time differences.After successful match, RNC determines to execute soft handover,
It is the wireless link distribution resource newly increased by sending wireless link to ask request target NodeB, then swashs to UE hairs
The cell of miss-configured neighboring cells is added to UE activation and concentrated, completes the soft switching process of detection collection cell by collection update living.
As shown in figure 12, for new site, after RNC is synchronous with website completion node, model is serviced for the new site
Cell in enclosing is randomly assigned subzone main scramble.This website clothes are obtained according to the UE received the detection collection measurement reports sent
After the SFN-SFN observed time differences between cell and peripheral cell in range of being engaged in, RNC can calculate the position letter of the website
Breath.If the position that the SFN deviations of the location information and other cells and this minizone for being obtained by air interface synchronization process obtain
Confidence breath is consistent, then it is believed that the subzone main scramble of website distribution is multiplexed there is no abnormal.Otherwise, RNC needs for the cell
A main scrambler is redistributed, the matching process of aforementioned location information is repeated, until being assigned to a rational master for the cell
Scrambler.After main scrambler is assigned, according to the detection collection measurement report of the surrounding adjacent area of the UE cells sent, RNC
All neighboring BS information for obtaining the cell, automatically generate cell neighbor list.
Through the invention, using node synchronization and air interface synchronization process, identify that main scrambler is identical but does not repeat
The adjacent area of covering solves the problems, such as that the main scrambler of triple adjacent areas easily causes scrambler multiplexing, caused by solving adjacent area leakage
Special Handle of Drop Question, while improving scrambler reusability so that 512 main scramblers in UMTS network become to have more than needed very much.Using this
The self-organizing network of invention also support detection collect switching, support automatically generate neighboring cell list, saved a large amount of manpower and materials at
This, the especially extensive application of micro-base station later does not need supplementary module and obtains adjacent area, will save great amount of cost yet.
In the present embodiment, a kind of radio network controller is applied to 2 without repetition covering containing identical main scrambler
In the system of the above cell, including：
Observed time difference acquisition module, for by node synchronizing process, obtaining the system-frame between any two cell
Number (SFN)-SFN observed time differences；
SFN deviation acquisition modules, for from the measurement report that user equipment (UE) reports, selecting a cell as mesh
Mark cell；And it is had built up according to the UE carried in the measurement report the Target cell SFN and UE measured
Downlink Dedicated Physical control channel (DPCCH) between the inclined OFF of frametargetWith the inclined Tm of codetarget, obtain the current clothes of the UE
SFN deviations between cell of being engaged in and the Target cell；
Matching module, the serving cell for getting the SFN deviations acquisition module and the Target cell
Between SFN deviations, the service got by the node synchronizing process with the observed time difference acquisition module is small
SFN-SFN observed time differences between area and the Target cell are matched, and confirm the identification information of the Target cell.
Preferably,
The observed time difference acquisition module is used to, by node synchronizing process, obtain the SFN- between any two cell
SFN observed time differences, specifically include：
The observed time difference acquisition module is used for each node B (NodeB) for subordinate, sends containing under T1
Row node synchronization frame is to NodeB；Wherein, T1 is that the observed time difference acquisition module sends the descendant node synchronization frame moment
RNC frame numbers；It is additionally operable to after receiving the response that the NodeB is returned, the RNC of the RNC is calculated by T2-T1+T4-T3
Deviation between frame number and the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is the NodeB
The NodeB frame numbers at the descendant node synchronization frame moment are received, T3 is the NodeB frames for sending the upstream node synchronization frame moment
Number；T4 is the RNC frame numbers that the observed time difference acquisition module receives the upstream node synchronization frame moment that the NodeB is reported；
It is additionally operable to for any two cell, according to the NodeB frame numbers of the RNC frame numbers of itself and the service NodeB of the two minizones
Between deviation, obtain the SFN-SFN observed time differences of the two cells.
Preferably,
The SFN deviations acquisition module, for according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between the serving cell current UE and the Target cell, specifically include：
The SFN deviations acquisition module, for during wireless heterogeneous networks (RRC) are connected and established, passing through RRC information
The dedicated physical channel deviant (DOFF) of the acquiescence of selection is issued into UE；Wherein, the UE is known by cell search process
It is presently in the SFN of serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The OFF that SFN deviation acquisition modules are stated for obtaining the Target celltargetAnd TmtargeteAfterwards, with it is described
The OFF of serving cellsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
Preferably, the radio network controller further includes：
Handover module passes through for determining that the Target cell can switch and sends wireless link request request
The serving BS of the Target cell is the wireless link distribution resource newly increased, and the Target cell is increased to UE activation collection
In.
Preferably,
The handover module is additionally operable in the cell for judging that the Target cell is not belonging in the neighboring cell list of the UE,
Then after the identification information for confirming the Target cell, the Target cell is added in the neighboring cell list of the UE.
In addition, in the present embodiment, another radio network controller, including：
Main scrambler distribution module is completed to save for the node B (NodeB) for main scrambler to be allocated with the NodeB
After point synchronizes, main scrambler is randomly assigned for the cell in the NodeB service ranges；
First position information computational module, for for the cell in the NodeB service ranges, being synchronized by node
Journey obtains System Frame Number (SFN)-SFN observed time differences between the cell and other cells, and calculates accordingly described
The location information of NodeB；
Second position information computational module, the measurement report reported for receiving user equipment (UE)；As described in judging
Information containing the cell in the NodeB service ranges in measurement report, then according to described in being carried in the measurement report
Frame between the downlink Dedicated Physical control channel (DPCCH) that the SFN and the UE for the cell that UE is measured have built up is inclined
OFFtargetWith the inclined Tm of codetarget, the SFN deviations between UE current serving cell and the cell are obtained, and calculate institute accordingly
State the location information of NodeB；
Matching module, for by the location information of the calculated NodeB of the first position information computational module, with
The location information of the calculated NodeB of second position information computational module is matched, and such as the two is consistent, then confirms
Main scrambler for NodeB distribution is correct.
Preferably,
The first position information computational module is used to, by node synchronizing process, obtain between the cell and other cells
SFN-SFN observed time differences, specifically include：
The first position information computational module be used for for the main scrambler to be allocated NodeB and subordinate other
Anticipate a NodeB, sends the descendant node synchronization frame containing T1 respectively to NodeB；Wherein, T1 is the first position information meter
Calculate the RNC frame numbers that module sends the descendant node synchronization frame moment；
It is additionally operable to after receiving the response that the NodeB is replied, the RNC of the RNC is calculated by T2-T1+T4-T3
Deviation between frame number and the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is that the NodeB is received
To the NodeB frame numbers at the descendant node synchronization frame moment, T3 is the NodeB frames for sending the upstream node synchronization frame moment
Number；T4 is the RNC frames that the first position information computational module receives the upstream node synchronization frame moment that the NodeB is reported
Number；
Be additionally operable to the subordinate of an any other NodeB NodeB and to(for) the main scrambler to be allocated, according to itself
Deviation between RNC frame numbers and the NodeB frame numbers of the service NodeB of the two minizones, obtains the SFN-SFN of the two cells
Observed time difference.
Preferably,
The second position information computational module is used for according to the OFF carried in the measurement reporttargetAnd Tmtarget,
The SFN deviations between the current serving cells of the UE and the Target cell are obtained, are specifically included：
The second position information computational module is used to during wireless heterogeneous networks (RRC) are connected and established, pass through RRC
The dedicated physical channel deviant (DOFF) of the acquiescence of selection is issued UE by message；Wherein, the UE passes through cell search process
Know the SFN for being presently in serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times；
The OFF that SFN deviation acquisition modules are stated for obtaining the Target celltargetAnd TmtargeteAfterwards, with it is described
The OFF of serving cellsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, the form that hardware may be used in each module/unit in above-described embodiment are realized, the shape of software function module can also be used
Formula is realized.The present invention is not limited to the combinations of the hardware and software of any particular form.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.According to
The invention content of the present invention, can also there is other various embodiments, without deviating from the spirit and substance of the present invention, be familiar with
Those skilled in the art makes various corresponding change and deformations in accordance with the present invention, all in the spirit and principles in the present invention
Within, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (18)
1. a kind of method of subzone main scramble conflict set recognition is applied to 2 or more without repetition covering containing identical main scrambler
In the system of cell, including：
By node synchronizing process, radio network controller (RNC) obtains the system frame number SFN-SFN between any two cell and sees
Survey the time difference；
The RNC selects a cell as Target cell from the measurement report of reported by user equipment UE；And according to the survey
The downlink Dedicated Physical control that the Target cell SFN and UE that the UE carried in amount report is measured has built up is believed
The inclined OFF of frame between road DPCCHtargetWith the inclined Tm of codetarget, obtain the current serving cells of the UE and the Target cell it
Between SFN deviations；
The RNC obtains the SFN deviations between the serving cell and the Target cell with by the node synchronizing process
The serving cell got is matched with the SFN-SFN observed time differences between the Target cell, confirms that the target is small
The identification information in area；
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain the current serving cells of the UE with
SFN deviations between the Target cell, specifically include：
The RNC obtains the OFF of the Target celltargetAnd TmtargeteAfterwards, with the OFF of the serving cellsourceWith
TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
2. the method as described in claim 1, it is characterised in that：
It is described by node synchronizing process, RNC obtains the SFN-SFN observed time differences between any two cell, specifically includes：
The descendant node synchronization frame containing T1 is sent to NodeB for each node B, that is, NodeB, the RNC of subordinate；Its
In, T1 is the RNC frame numbers that the RNC sends the descendant node synchronization frame moment；
Response upstream node synchronization frame is to the RNC after the NodeB is received, wherein carrying T2 and T3；Wherein, T2 is described
NodeB receives the NodeB frame numbers at the descendant node synchronization frame moment, and T3 is the NodeB for sending the upstream node synchronization frame moment
Frame number；
The RNC is calculated by T2-T1+T4-T3 between the RNC frame numbers of the RNC and the NodeB frame numbers of the NodeB
Deviation；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
For any two cell, the RNC is according to the NodeB of the service NodeB of the RNC frame numbers of itself and the two minizones
Deviation between frame number obtains the SFN-SFN observed time differences of the two cells.
3. method as claimed in claim 1 or 2, it is characterised in that：
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain the current serving cells of the UE with
SFN deviations between the Target cell, specifically include：
UE knows the SFN for being presently in serving cell by cell search process；
During radio resource control RRC is connected and established, the RNC is by RRC information by the special physics of the acquiescence of selection
Channels offset value DOFF issues the UE；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times.
4. a kind of method of the soft handover of detection collection cell, is applied to 2 or more without repetition covering containing identical main scrambler
In the system of cell, including：
By node synchronizing process, radio network controller (RNC) obtains the system frame number SFN-SFN between any two cell and sees
Survey the time difference；
The RNC selects a cell as Target cell from the measurement report of reported by user equipment UE；And according to the survey
The downlink Dedicated Physical control that the Target cell SFN and UE that the UE carried in amount report is measured has built up is believed
The inclined OFF of frame between road DPCCHtargetWith the inclined Tm of codetarget, obtain the current serving cells of the UE and the Target cell it
Between SFN deviations；
The RNC obtains the SFN deviations between the serving cell and the Target cell with by the node synchronizing process
The serving cell got is matched with the SFN-SFN observed time differences between the Target cell, confirms that the target is small
The identification information in area；
The RNC determines that the Target cell can switch, and the Target cell is asked by sending wireless link request
Serving BS be the wireless link distribution resource newly increased, by the Target cell increase to UE activation concentrate；
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain the current serving cells of the UE with
SFN deviations between the Target cell, specifically include：
The RNC obtains the OFF of the Target celltargetAnd TmtargeteAfterwards, with the OFF of the serving cellsourceWith
TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
5. method as claimed in claim 4, which is characterized in that further include：
The Target cell as described in judging be not belonging to as described in UE neighboring cell list in cell, then confirming the Target cell
After identification information, the Target cell is added in the neighboring cell list of the UE.
6. method as described in claim 4 or 5, it is characterised in that：
It is described by node synchronizing process, RNC obtains the SFN-SFN observed time differences between any two cell, specifically includes：
The descendant node synchronization frame containing T1 is sent to NodeB for each node B, that is, NodeB, the RNC of subordinate；Its
In, T1 is the RNC frame numbers that the RNC sends the descendant node synchronization frame moment；
Response upstream node synchronization frame is to the RNC after the NodeB is received, wherein carrying T2 and T3；Wherein, T2 is described
NodeB receives the NodeB frame numbers at the descendant node synchronization frame moment, and T3 is the NodeB for sending the upstream node synchronization frame moment
Frame number；
The RNC is calculated inclined between the RNC frame numbers of the RNC and the NodeB frame numbers of the NodeB by T2-T1+T4-T3
Difference；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
For any two cell, the RNC is according to the NodeB of the service NodeB of the RNC frame numbers of itself and the two minizones
Deviation between frame number obtains the SFN-SFN observed time differences of the two cells.
7. method as described in claim 4 or 5, it is characterised in that：
The RNC is according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain the current serving cells of the UE with
SFN deviations between the Target cell, specifically include：
The UE knows the SFN for being presently in serving cell by cell search process；
During radio resource control RRC is connected and established, the RNC is by RRC information by the special physics of the acquiescence of selection
Channels offset value DOFF issues the UE；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC：
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times.
8. a kind of method of main scrambler distribution, is without 2 or more cells for repeating covering applied to containing identical main scrambler
In system, including：
For node B, that is, NodeB of main scrambler to be allocated, radio network controller (RNC) is synchronous with NodeB completion nodes
Afterwards, it is randomly assigned main scrambler for the cell in the NodeB service ranges；
For the cell in the NodeB service ranges, by node synchronizing process, it is small with other that the RNC obtains the cell
System frame number SFN-SFN observed time differences between area, and the location information of the NodeB is calculated accordingly；
The RNC receives the measurement report of reported by user equipment UE；It is taken containing the NodeB in the measurement report as described in judging
The information of cell in range of being engaged in, then according to the SFN of the UE that is carried in the measurement report cell measured with it is described
The inclined OFFtarget of the frame and inclined Tmtarget of code between the downlink Dedicated Physical control channel DPCCH that UE has built up, obtains UE
SFN deviations between current serving cell and the cell, and the location information of the NodeB is calculated accordingly；
The RNC is synchronous with by the node by according to the location information of the calculated NodeB of the measurement report
The location information for the NodeB that journey is got is matched, and such as the two is consistent, then the master for being confirmed as the NodeB distribution disturbs
Code is correct；
The RNC is according to the SFN and OFF for carrying the cell that the UE is measured in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between the serving cell for taking the UE current and the cell, specifically include：
The RNC obtains the OFF in the NodeB service ranges of the main scrambler to be allocatedtargetAnd TmtargeteAfterwards, with it is described
The OFF of serving cellsourceAnd TmsourceIt compares, the NodeB for obtaining the serving cell and the main scrambler to be allocated is serviced
The deviation of the SFN of cell in range.
9. method as claimed in claim 8, it is characterised in that：
It is described that by node synchronizing process, the RNC obtains the SFN-SFN observed time differences between the cell and other cells,
It specifically includes：
An any other NodeB of NodeB and subordinate for the main scrambler to be allocated, the RNC is sent respectively to be contained
The descendant node synchronization frame of T1 is to NodeB；Wherein, T1 is the RNC frame numbers that the RNC sends the descendant node synchronization frame moment；
Response upstream node synchronization frame is to the RNC after NodeB is received, wherein carrying T2 and T3；Wherein, T2 is the NodeB
The NodeB frame numbers at the descendant node synchronization frame moment are received, T3 is the NodeB frame numbers for sending the upstream node synchronization frame moment；
The RNC is calculated inclined between the RNC frame numbers of the RNC and the NodeB frame numbers of the NodeB by T2-T1+T4-T3
Difference；Wherein, T4 is the RNC frame numbers that the RNC receives the upstream node synchronization frame moment that the NodeB is reported；
NodeB's and subordinate for the main scrambler to be allocated is any other, and the RNC is according to the RNC frame numbers of itself and this
Deviation between the NodeB frame numbers of the service NodeB of two minizones, obtains the SFN-SFN observed time differences of the two cells.
10. method as claimed in claim 8 or 9, it is characterised in that：
The RNC is according to the SFN and OFF for carrying the cell that the UE is measured in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between the serving cell for taking the UE current and the cell, specifically include：
The UE knows the SFN for being presently in serving cell by cell search process；
During radio resource control RRC is connected and established, the RNC is by RRC information by the special physics of the acquiescence of selection
Channels offset value DOFF issues the UE；
The UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the cell in the NodeB service ranges of the main scrambler to be allocated by following formulatargetWith
TmtargetAnd it is reported to the RNC：
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times.
11. a kind of radio network controller (RNC) is applied to 2 or more the cells without repetition covering containing identical main scrambler
In system, including：
Observed time difference acquisition module, for by node synchronizing process, obtaining the System Frame Number between any two cell
SFN-SFN observed time differences；
SFN deviation acquisition modules, for from the measurement report of reported by user equipment UE, selecting a cell small as target
Area；And the Target cell SFN measured according to the UE carried in the measurement report the and UE has built up down
The inclined OFF of frame between row special used for physical control channel DPCCHtargetWith the inclined Tm of codetarget, obtain the current serving cells of the UE
SFN deviations between the Target cell；
Matching module, between the serving cell and the Target cell for getting the SFN deviations acquisition module
SFN deviations, the serving cell got by the node synchronizing process with the observed time difference acquisition module with
SFN-SFN observed time differences between the Target cell are matched, and confirm the identification information of the Target cell；
The SFN deviations acquisition module, for according to the OFF carried in the measurement reporttargetAnd Tmtarget, described in acquisition
SFN deviations between serving cell current UE and the Target cell, specifically include：
The SFN deviations acquisition module is used to obtain the OFF of the Target celltargetAnd TmtargeteAfterwards, with the serving cell
OFFsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and the Target cell.
12. radio network controller as claimed in claim 11, it is characterised in that：
The observed time difference acquisition module is used to, by node synchronizing process, obtain the SFN-SFN between any two cell
Observed time difference specifically includes：
The observed time difference acquisition module is used for each node B, that is, NodeB for subordinate, sends the downlink section containing T1
Point synchronization frame is to NodeB；Wherein, T1 is the RNC frames that the observed time difference acquisition module sends the descendant node synchronization frame moment
Number；After being additionally operable to receive the response that the NodeB is returned, by T2-T1+T4-T3 calculate the RNC RNC frame numbers and
Deviation between the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is that the NodeB receives institute
The NodeB frame numbers at descendant node synchronization frame moment are stated, T3 is the NodeB frame numbers for sending the upstream node synchronization frame moment；T4 is institute
State the RNC frame numbers that observed time difference acquisition module receives the upstream node synchronization frame moment that the NodeB is reported；Be additionally operable to for
Any two cell, according to the deviation between the NodeB frame numbers of the service NodeB of the RNC frame numbers of itself and the two minizones,
Obtain the SFN-SFN observed time differences of the two cells.
13. the radio network controller as described in claim 11 or 12, it is characterised in that：
The SFN deviations acquisition module, for according to the OFF carried in the measurement reporttargetAnd Tmtarget, described in acquisition
SFN deviations between serving cell current UE and the Target cell, specifically include：
The SFN deviations acquisition module, for that during radio resource control RRC is connected and established, will be selected by RRC information
The dedicated physical channel deviant DOFF of acquiescence issue UE；Wherein, the UE is known by cell search process is presently in
The SFN of serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times.
14. the radio network controller as described in claim 11 or 12, which is characterized in that further include：
Handover module, for determining that the Target cell can switch, by sending described in wireless link request request
The serving BS of Target cell is the wireless link distribution resource newly increased, and the Target cell, which is increased to UE activation, to be concentrated.
15. radio network controller as claimed in claim 14, it is characterised in that：
The handover module is additionally operable in the cell for judging that the Target cell is not belonging in the neighboring cell list of the UE, then exist
After the identification information for confirming the Target cell, the Target cell is added in the neighboring cell list of the UE.
16. a kind of radio network controller (RNC) is applied to 2 or more the cells without repetition covering containing identical main scrambler
In system, including：
Main scrambler distribution module, it is same completing node with the NodeB for node B, that is, NodeB for main scrambler to be allocated
After step, main scrambler is randomly assigned for the cell in the NodeB service ranges；
First position information computational module, for for the cell in the NodeB service ranges, by node synchronizing process,
System frame number SFN-SFN the observed time differences between the cell and other cells are obtained, and calculate the position of the NodeB accordingly
Confidence ceases；
Second position information computational module, the measurement report for receiving reported by user equipment UE；Report is measured as described in judging
Information containing the cell in the NodeB service ranges in announcement, then measure according to the UE carried in the measurement report
The cell the downlink Dedicated Physical control channel DPCCH that has built up of SFN and the UE between the inclined OFF of frametargetWith code
Inclined Tmtarget, the SFN deviations between UE current serving cell and the cell are obtained, and calculate the position of the NodeB accordingly
Confidence ceases；
Matching module, it is and described for by the location information of the calculated NodeB of the first position information computational module
The location information of the calculated NodeB of second position information computational module is matched, and such as the two is consistent, then is confirmed as institute
The main scrambler for stating NodeB distribution is correct；
The second position information computational module is used for according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between serving cell and the Target cell current UE, specifically include：
SFN deviation acquisition modules are used to obtain the OFF of Target celltargetAnd TmtargeteAfterwards, with the serving cell
OFFsourceAnd TmsourceIt compares, obtains the deviation of the SFN of the serving cell and Target cell.
17. radio network controller as claimed in claim 16, it is characterised in that：
The first position information computational module is used to, by node synchronizing process, obtain between the cell and other cells
SFN-SFN observed time differences, specifically include：
Any other the one of NodeB and subordinate of the first position information computational module for being directed to the main scrambler to be allocated
A NodeB sends the descendant node synchronization frame containing T1 to NodeB respectively；Wherein, T1 is that the first position information calculates mould
Block sends the RNC frame numbers at descendant node synchronization frame moment；
It is additionally operable to after receiving the response that the NodeB is replied, the RNC frame numbers of the RNC is calculated by T2-T1+T4-T3
Deviation between the NodeB frame numbers of the NodeB；Wherein, T2 and T3 is carried in the response；T2 is that the NodeB receives institute
The NodeB frame numbers at descendant node synchronization frame moment are stated, T3 is the NodeB frame numbers for sending the upstream node synchronization frame moment；T4 is institute
State the RNC frame numbers that first position information computational module receives the upstream node synchronization frame moment that the NodeB is reported；
It is additionally operable to the subordinate of an any other NodeB NodeB and to(for) the main scrambler to be allocated, according to the RNC of itself
Deviation between frame number and the NodeB frame numbers of the service NodeB of the two minizones, the SFN-SFN for obtaining the two cells are seen
Survey the time difference.
18. the radio network controller as described in claim 16 or 17, it is characterised in that：
The second position information computational module is used for according to the OFF carried in the measurement reporttargetAnd Tmtarget, obtain
SFN deviations between the serving cell current UE and the Target cell, specifically include：
The second position information computational module is used for during radio resource control RRC is connected and established, will by RRC information
The dedicated physical channel deviant DOFF of the acquiescence of selection issues UE；Wherein, the UE is known currently by cell search process
The SFN of residing serving cell；And the UE is calculate by the following formula to obtain the OFF of serving cellsourceAnd Tmsource：
CFN=((SFN × 38400-DOFF × 512) ÷ 38400) Mod256
OFF+Tm=(SFN-CFN) Mod256
The UE measures the OFF of the Target cell by following formulatargetAnd TmtargetAnd it is reported to the RNC；
OFF+Tm=(SFN-DLDPCHnom)Mod256
Wherein, DLDPCHnomFor downlink DPCH receiving times.
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| CN105592493A (en) * | 2014-10-24 | 2016-05-18 | 中兴通讯股份有限公司 | Detection method and apparatus of scrambling code conflict cell, and network element |
| CN105636095A (en) * | 2014-10-27 | 2016-06-01 | 中兴通讯股份有限公司 | Method and device for determining missed neighbor cells |
| CN106686669B (en) * | 2015-11-11 | 2021-01-26 | 中兴通讯股份有限公司 | Synchronization method and device |
| EP3603158B1 (en) * | 2017-04-03 | 2021-07-28 | Huawei Technologies Co., Ltd. | Apparatus and method for slice availability discovery |
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