CN103796259B - A kind of creation method, switching method and the device of supplement adjacent area - Google Patents
A kind of creation method, switching method and the device of supplement adjacent area Download PDFInfo
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- CN103796259B CN103796259B CN201210421668.4A CN201210421668A CN103796259B CN 103796259 B CN103796259 B CN 103796259B CN 201210421668 A CN201210421668 A CN 201210421668A CN 103796259 B CN103796259 B CN 103796259B
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Abstract
The embodiments of the invention provide a kind of creation method, switching method and the device of supplement adjacent area, the creation method of the supplement adjacent area includes：When terminal is currently located serving cell and requires supplementation with establishment adjacent area, in the cell in addition to the original adjacent area of serving cell controlled from the BSC belonging to serving cell or RNC, or from the cell for BSC or the RNC control being not belonging to belonging to serving cell, selection BCCH frequencies and the BCCH frequency identical cells of any adjacent area in original adjacent area；When terminal needs to be switched to original adjacent area from the serving cell being currently located, in the case where can not successfully be cut into original adjacent area, it can be switched over to the supplement adjacent area of foregoing establishment.The embodiment of the present invention can solve existing the problem of the weak level caused adjacent area, poor speech quality and call drop can not be successfully cut from serving cell.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of creation method of supplement adjacent area, switching method and
Device.
Background technology
At present, in existing GSM network, what each cell was equipped with issuing by eating dishes without rice or wine is used for what terminal can be cut
Traditional adjacent area, is typically to issue in the form of a list.Specifically, for each serving cell, its traditional adjacent area is
Network optimization personnel are pre-configured with, and can only at most include 32 adjacent areas, and network optimization personnel are when doing traditional neighbor cell configuration
Moving table measuring overlong time is avoided, is based on being that serving cell configures direct neighbor cell with the geographical position of serving cell
's.
Because BCCH (Broadcast Control Channel, BCCH) frequency number of GSM network is a lot,
Such as 900M networks have 125, and 1800M networks have 375, and the traditional adjacent area configured can only at most configure 32 it is different
BCCH frequencies, i.e. one BCCH frequency of each adjacent area correspondence.
In order to reduce the interference of BCCH frequencies, network optimization personnel typically can give GSM nets in the actual network planning
The reserved certain frequency resource of BCCH distribution of all cells in network, typically by the way of 8x3 or 7x3 multiplexings, to all
Cell only distributes 24 or 21 frequencies, so, and indirectly adjacent cell can reuse these frequencies by way of channeling
Point, in this case, the measurement result of mobile station can be than more complete, for being arrived and signal intensity ranking by moving table measuring
Preceding 6 cell, mobile station can be by the BCCH frequencies of these cells and each self-corresponding base station identity code (Base Station
Identity Code, BSIC) network is reported by measurement report.Because one has 64 BSIC in GSM network, then, net
Network optimization personnel can do strict limitation when real network is planned to the cell of same BCCH frequencies and same BSIC, that is, exist
It may insure that mobile station will not receive these same frequencies and same BSIC cell in certain geography scope, can also so recognize
For the BCCH frequencies and BSIC that mobile station reports network can uniquely determine some cell.
Further, when being switched over using traditional adjacent area, mobile station is by measuring the corresponding BCCH frequencies in these adjacent areas
Point, and in the measurement results to the BCCH frequencies and each self-corresponding BSIC of network-reporting most strong 6 adjacent areas, to aid in network
Switch over judgement.Due in whole handoff procedure, being by network recognizes adjacent area, the mobile playscript with stage directions by BCCH and BSIC
Body can not get the BSIC information of each adjacent area in traditional adjacent area by eating dishes without rice or wine, so, and mobile station is in measurement adjacent area
When with certain blindness, will measure and report as long as BCCH frequencies are identical, in this case, what it was reported
BCCH frequencies and the cell corresponding to BSIC may not be the adjacent area configured in traditional adjacent area.In this case, at present
Filtration treatment is directly typically carried out to the information that this part is reported.
In addition, the problem of in order to reduce conversation loss caused by non-configuring adjacent cell, at present, network optimization personnel can be
During adjacent area traditional for each cell configuration in GSM network, by a part of adjacent area as protection neighbor cell configuration in traditional adjacent area.
In order to avoid switching not in time caused by conversation loss the problem of, be currently by network optimization personnel be each
Cell is pre-configured with traditional adjacent area, is realized by way of being then handed down to each terminal eating dishes without rice or wine, but still have down
State defect：
1st, in traffic close quarters, in the case of there is GSM900, DCS1800 and room branch website, in traditional adjacent area
32 adjacent areas quantitatively tend not to meet the switching demand of user, and this will result in a part and be able to should actually cut
Changing the adjacent area of relation can not switch over because not configuring in traditional adjacent area, so as to cause Internet phone-calling second-rate.
2nd, network optimization personnel simply match somebody with somebody geographical position and the cell of serving cell direct neighbor when doing adjacent section planning
It is placed in traditional adjacent area, and the cell to indirectly adjacent is not considered generally, it is so, very fast in mobile station translational speed
In the case of, often because mobile station has little time to measure direct neighbor cell, so as to cause mobile station timely
Direct neighbor cell is switched to, causes level weak, of poor quality, or even also produces the situation of call drop.
3rd, the base station that the adjacent area in traditional adjacent area occurs where inadequate resource, or adjacent area because traffic is busy occurs each
During class hardware and software failure, still resulting in mobile station can not successfully cut from serving cell, so that cause level weak, of poor quality,
Even produce the situation of call drop.
The content of the invention
It is existing to solve the embodiments of the invention provide a kind of creation method, switching method and the device of supplement adjacent area
The problem of weak level caused adjacent area, poor speech quality and call drop can not be successfully cut from serving cell.
Based on above mentioned problem, a kind of creation method of supplement adjacent area provided in an embodiment of the present invention, including：
When terminal is currently located serving cell and requires supplementation with establishment adjacent area, from the BSC or nothing belonging to the serving cell
Line network controller (Radio Network Controller, RNC) control in addition to the original adjacent area of the serving cell
Cell in, or from be not belonging to belonging to the serving cell base station controller BSC or radio network controller (RNC) control
In cell, selection BCCH channel of broadcast control frequency and the BCCH frequency identical cells of any adjacent area in the original adjacent area,
The original adjacent area of the serving cell is the cell that the terminal being pre-configured with can be cut；
The cell of selection is created as to the supplement adjacent area of the serving cell.
A kind of switching method of creation method based on above-mentioned supplement adjacent area provided in an embodiment of the present invention, including：
When terminal needs to be switched to the original adjacent area of the serving cell from the serving cell being currently located, however, it is determined that nothing
Method is successfully cut into the original adjacent area, determines that the supplement that terminal can be cut is adjacent in the supplement adjacent area of the serving cell
Area；
A cell during terminal to be switched to the supplement adjacent area determined from current service cell.
A kind of creating device of supplement adjacent area provided in an embodiment of the present invention, including：
Selecting module, for when terminal is currently located serving cell and requires supplementation with establishment adjacent area, from the serving cell
It is small in addition to the original adjacent area of the serving cell that affiliated base station controller BSC or radio network controller (RNC) are controlled
Qu Zhong, or the cell controlled from the base station controller BSC or radio network controller (RNC) being not belonging to belonging to the serving cell
In, selection BCCH channel of broadcast control frequency and the BCCH frequency identical cells of any adjacent area in the original adjacent area are described
The original adjacent area of serving cell is the cell that the terminal being pre-configured with can be cut；
Creation module, the cell for the selecting module to be selected is created as the supplement adjacent area of the serving cell.
A kind of switching device of creating device based on above-mentioned supplement adjacent area provided in an embodiment of the present invention, including：
Determining module, for needing to be switched to the original neighbour of the serving cell from the serving cell being currently located in terminal
Qu Shi, however, it is determined that can not successfully be cut into the original adjacent area, determines that terminal can in the supplement adjacent area of the serving cell
The supplement adjacent area of incision；
A cell in handover module, the supplement adjacent area determined for terminal to be switched to from current service cell.
The beneficial effect of the embodiment of the present invention includes：
Creation method, switching method and the device of a kind of supplement adjacent area provided in an embodiment of the present invention, in supplement adjacent area
In creation method, when terminal is currently located serving cell and requires supplementation with establishment adjacent area, following two kinds of strategy and suggestions can be passed through
In BCCH frequencies and original adjacent area the BCCH frequency identical cells of any adjacent area as current area supplement adjacent area, specifically
For the first：Selected in the cell in addition to the original adjacent area of serving cell controlled from the BSC belonging to serving cell or RNC；
Second：Selected from the cell for BSC or the RNC control being not belonging to belonging to serving cell.When terminal is needed from being currently located
When serving cell is switched to original adjacent area, in the case where can not successfully be cut into original adjacent area, can to above-mentioned establishment benefit
Adjacent area is filled to switch over.So, when serving cell needs switching, it is no longer limited by original adjacent area to switch, also
It can switch into supplement adjacent area provided in an embodiment of the present invention, so as to avoid existing can not in time cutting or can not successfully cutting
Level is weak caused by original adjacent area, poor speech quality and the problem of call drop.Furthermore, in the prior art, original adjacent area is most
32 adjacent areas can only be included, and the quantity of supplement adjacent area provided in an embodiment of the present invention can have a lot, like this, in traffic
Close quarters, can meet the switching demand of user.
Brief description of the drawings
Fig. 1 is the flow chart of the creation method of supplement adjacent area provided in an embodiment of the present invention；
Fig. 2 is the cell in addition to the original adjacent area of serving cell provided in an embodiment of the present invention controlled from BSC or RNC
Middle selection BCCH frequencies and the schematic diagram of the BCCH frequency identical cells of any adjacent area in original adjacent area；
Fig. 3 for it is provided in an embodiment of the present invention from be not belonging to BSC or RNC control cell in selection BCCH frequencies with it is original
The schematic diagram of the BCCH frequency identical cells of any adjacent area in adjacent area；
Fig. 4 is the structural representation of the creating device of supplement adjacent area provided in an embodiment of the present invention；
Fig. 5 is the switching method flow chart provided in an embodiment of the present invention based on the creation method for supplementing adjacent area；
Fig. 6 is the flow provided in an embodiment of the present invention that the supplement adjacent area that terminal can be cut is determined in supplement adjacent area
Figure；
Fig. 7 is the switching device flow chart provided in an embodiment of the present invention based on the creating device for supplementing adjacent area.
Embodiment
In existing GSM network, network optimization personnel are often pre-configured with some terminals to serving cell where terminal
The cell that can be cut, using these cells as the original adjacent area of serving cell, because current original adjacent area can only at most match somebody with somebody
32 are put, so in traffic close quarters, often because of the limitation of number of cells in original adjacent area, it is impossible to meet user's request,
I.e. terminal from serving cell switch when, incision still occurs not in time or original adjacent area can not be successfully cut so as to the electricity that causes
The problem of putting down poor weak, speech quality and call drop.In view of the above-mentioned problems, the embodiments of the invention provide a kind of establishment of supplement adjacent area
And handover scheme, by creating supplement adjacent area (cell that many terminals can be cut can be included), user's request is both met,
Conversation loss problem is turn avoid, and improves speech quality.
Below by taking serving cell where a terminal in GSM network as an example, with reference to Figure of description, to present invention implementation
The embodiment of the creation method of supplement adjacent area a kind of, switching method and device that example is provided is illustrated, for other
For serving cell where terminal, the flow that it creates supplement adjacent area is identical, subsequently repeats no more.
The creation method of a kind of supplement adjacent area provided in an embodiment of the present invention, as shown in figure 1, specifically including following steps：
S101：When terminal is currently located serving cell and requires supplementation with establishment adjacent area, from the BSC belonging to serving cell or
In the cell in addition to the original adjacent area of serving cell of RNC controls, or from the BSC or RNC being not belonging to belonging to serving cell
In the cell of control, selection BCCH frequencies and the BCCH frequency identical cells of any adjacent area in original adjacent area；
Herein, the original adjacent area of serving cell is specially the cell that the terminal being pre-configured with can be cut.
S102：The cell of selection is created as to the supplement adjacent area of serving cell.
It is preferred that in above-mentioned steps S101, which kind of needs triggering be currently located serving cell benefit for terminal in the case of
The flow for creating adjacent area is filled, this trigger condition there can be a variety of situations, for example, can be following three kinds of situations：
The first situation：There is inadequate resource in some cells in original adjacent area
For the cell in the case of the first, because the traffic of the cell is busy, terminal needs often to cut from serving cell
The cell is changed to, and the resource cut due to being used for terminal in the cell is limited, so, may result in sometimes terminal
The cell can not be successfully cut into from the serving cell, so that conversation loss is caused, in such a case, it is possible to small for the service
Area's supplement creates adjacent area.
Second of situation：There are various soft and hardware failures in base station in original adjacent area where some cells
For the cell in the case of second, because the traffic of the cell is also busy, terminal is needed often from serving cell
The cell is switched to, still, when various soft and hardware failures occurs in the base station where the cell, terminal just can not be from the service
Cell is successfully cut into the cell, so that conversation loss is caused, in such a case, it is possible to create adjacent for serving cell supplement
Area.
The third situation：The signal strength weakening of some cells in original adjacent area
For the cell in the case of the third, in Internet phone-calling, probably due to the reason such as weather, newly-increased building causes to cover
The signal strength weakening of these cells is covered, the signal intensity of these cells is below meeting the signal intensity of the cell of terminal incision
Threshold value, so as to cause terminal can not be from serving cell successful switch to these cells.In such a case, it is possible to be the clothes
Cell of being engaged in supplement creates adjacent area.
Certainly, the embodiment of the present invention is not limited in these three above-mentioned situations, can also trigger in other cases as end
End is currently located the flow that serving cell supplement creates adjacent area, and the embodiment of the present invention does not do specific limit to above-mentioned trigger condition
It is fixed.
It is preferred that in above-mentioned steps S101, when supplement creates adjacent area, BCCH can be selected by following two ways
Frequency and the BCCH frequency identical cells of any adjacent area in original adjacent area：
First way：Selected in the cell in addition to the original adjacent area of serving cell controlled from BSC or RNC.
By taking BSC as an example, it is assumed that serving cell A where terminal, cell B, cell C, cell D, cell E, cell F, cell G,
Cell H, cell I, cell J and cell K are the cell of BSC controls, it is assumed that serving cell A original adjacent area is cell B, cell
C, cell D and cell E, then, it is when serving cell A supplements create adjacent area, it is necessary to cell F, cell G, cell H, cell I, small
(cell as shown in dotted portion in Fig. 2) is selected in area J and cell K.
The second way：Selected from the cell for being not belonging to BSC or RNC controls.
Still by taking BSC as an example, it is assumed that serving cell A, cell B, cell C, cell D and cell E where terminal are BSC1 controls
The cell of system；Cell F, cell G, cell H, cell I and cell J are the cell of BSC2 controls；Assuming that serving cell A's is original
Adjacent area is cell B, cell C, cell D and cell E, then, it is necessary to what BSC2 was controlled when being serving cell A supplement establishment adjacent areas
(cell as shown in dotted portion in Fig. 3) is selected in cell F, cell G, cell H, cell I and cell J.
In embodiments of the present invention, no matter being selected using which kind of mode, the BCCH frequencies of its cell selected be required for
The BCCH frequencies of any adjacent area are identical in original adjacent area, and like this, the information of the supplement adjacent area subsequently created need not lead to
Cross and eat dishes without rice or wine to issue, because, any adjacent area in original adjacent area is only included in the system message that GSM network is issued by eating dishes without rice or wine
BCCH frequencies, these cells are uniquely determined because GSM network is BCCH frequencies and corresponding BSIC by each cell,
And mobile station can not obtain the BSIC of each cell in original adjacent area by system message in itself, this allows for mobile station in survey
With certain blindness when measuring the adjacent area of serving cell, if BCCH frequency identicals cell just it is measured and on
Report, so, the cell corresponding to BCCH frequencies and BSIC that mobile station is reported may not be to match somebody with somebody in advance in original adjacent area
The cell put, that is to say, that mobile station reports the cell of GSM network, in addition to the cell in including original adjacent area, in addition to
Follow-up some cells created in supplement adjacent area.
Specifically, in above-mentioned steps S101, for the cell with serving cell where terminal under same BSC controls,
Cell can be selected by meeting following conditions：
In the case where network parameter meets preparatory condition, selection BCCH frequencies and the BCCH of any adjacent area in original adjacent area
Frequency identical cell.
In this condition, preparatory condition can be that BSC or RNC, selected cell are provided with supplementing for serving cell
Create adjacent area condition, for example preparatory condition for BSC or RNC ranks parameter and all selected cell levels parameter all
It is positioned to allow for creating adjacent area for serving cell supplement, these parameters are pre-configured.That is, the cell of selection is
The parameter of the parameter of BSC or RNC ranks and all selected cell levels be all allow for serving cell supplement create adjacent area,
And BCCH frequencies and the BCCH frequency identical cells of any adjacent area in original adjacent area are used as supplement adjacent area.
For the cell with serving cell where terminal not under same BSC controls, although or in same BSC controls
Under, but any of BSC or RNC and selected cell do not possess the cell that the condition for creating adjacent area is supplemented for serving cell,
Can cell automatically that BCCH frequencies is identical with the BCCH frequencies of any adjacent area in original adjacent area and can be used in terminal switching
It is used as supplement adjacent area.
In the prior art, the adjacent area in original adjacent area and serving cell where terminal are direct neighbors, indirect phase
Adjacent cell is not paid attention to generally, and in embodiments of the present invention, when supplement creates the adjacent area of serving cell, as long as meeting
BCCH frequencies are identical with the BCCH frequencies of any adjacent area in original adjacent area can be just added in supplement adjacent area, like this, just
The cell of indirectly adjacent is also contemplated in the range of switching cell, user's request is met.
It is preferred that be original adjacent area for the ease of the cell that distinguishing terminal is switched to from serving cell or supplement adjacent area,
The embodiment of the present invention can be when serving cell be pre-configured with original adjacent area where terminal, each neighbour set up in original adjacent area
The neighboring BS relationship parameter field in area, the neighboring BS relationship parameter field is for example including adjacent area type parameter field, adjacent area level parameters
Field and cell level parameter field etc., for example, cell A is the cell in original adjacent area, in its neighboring BS relationship parameter field
Adjacent area type parameter field be original adjacent area field；Can also be after above-mentioned steps S102 have been performed, in supplement adjacent area
Each cell sets up neighboring BS relationship parameter field, for example, cell B is the cell in supplement adjacent area, its neighboring BS relationship parameter word
Adjacent area type parameter field in section is supplement adjacent area field.
Still so that cell B is the cell in supplement adjacent area as an example, if not specified neighbour in cell B neighboring BS relationship parameter field
Area's type field, then its adjacent area level parameters are defaulted as its cell level parameter；If cell B neighboring BS relationship parameter
Adjacent area type field is specified in field, then its adjacent area level parameters are its adjacent area rank ginseng between serving cell
Number.
In addition, in embodiments of the present invention, the cell that can also be controlled from the BSC or RNC being not belonging to belonging to serving cell
In, the cell that selection BCCH frequencies are differed with the BCCH frequencies of any adjacent area in original adjacent area；And add the cell of selection
In the original adjacent area for being added to serving cell of the quantity less than 32, so that terminal is cut into original adjacent area from serving cell.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of creating device of supplement adjacent area, due to the dress
The principle for putting solved problem is similar to the creation method of foregoing supplement adjacent area, therefore the implementation of the device may refer to foregoing side
The implementation of method, repeats part and repeats no more.
The embodiment of the present invention provides a kind of creating device of supplement adjacent area, as shown in figure 4, specifically including：
Selecting module 401, for when terminal is currently located serving cell and requires supplementation with establishment adjacent area, from serving cell institute
In the cell in addition to the original adjacent area of serving cell of BSC or the RNC control of category, or from being not belonging to belonging to serving cell
In the cell of BSC or RNC controls, selection BCCH frequencies and the BCCH frequency identical cells of any adjacent area in original adjacent area, clothes
The original adjacent area of business cell is the cell that the terminal being pre-configured with can be cut；
Creation module 402, the cell for selecting module 401 to be selected is created as the supplement adjacent area of serving cell.
It is preferred that selecting module 401, in the case of meeting preparatory condition in network parameter, selection BCCH frequencies
Point and the BCCH frequency identical cells of any adjacent area in original adjacent area.
Said apparatus, can also include：Add module 403；
Selecting module 401, is additionally operable to from the cell for BSC or the RNC control being not belonging to belonging to serving cell, selects BCCH
The cell that frequency is differed with the BCCH frequencies of any adjacent area in original adjacent area；
Add module 403, the cell for selecting module 401 to be selected is added to the original adjacent area of serving cell.
The embodiment of the present invention also provides a kind of switching method of the creation method based on above-mentioned supplement adjacent area, as shown in figure 5,
Specifically include following step：
S501：When terminal needs to be switched to the original adjacent area of serving cell from the serving cell being currently located, it is determined that being
It is no to be successfully cut into original adjacent area；If so, performing step S502-S503；Otherwise, step S504-S505 is performed；
S502：The cell that terminal can be cut is determined in the original adjacent area of serving cell；
S503：A cell during terminal to be switched to the original adjacent area determined from current service cell；
S504：The supplement adjacent area that terminal can be cut is determined in the supplement adjacent area of serving cell；
S505：A cell during terminal to be switched to the supplement adjacent area determined from current service cell.
Further, in above-mentioned steps S504, it can be determined by following step in the supplement adjacent area of serving cell
The supplement adjacent area that terminal can be cut, as shown in fig. 6, specifically including：
S601：Judge supplement adjacent area signal intensity whether exceed serving cell signal intensity reach default first
Limit value, and the time span exceeded reaches preset duration, if so, performing step S602；Otherwise, step S603 is performed；
S602：Judge whether the signal intensity for supplementing adjacent area exceedes serving cell and the signal intensity of all original adjacent areas reaches
To default second threshold value, and the time span exceeded reaches the preset duration, if so, performing step S604；Otherwise, perform
Step S603；
S603：Terminate switching；
S604：Judge whether the signal intensity for supplementing adjacent area exceedes default 3rd threshold value；If so, performing step
S605；Otherwise, step S603 is performed；
S605：Judge to supplement whether adjacent area meets the switching condition that terminal cuts original adjacent area from serving cell, if so, holding
Row step S606；Otherwise, step S603 is performed；
S606：The cell for meeting above-mentioned steps S601, S602, S604 and S605 simultaneously is defined as what terminal can be cut
Supplement adjacent area.
For each cell in supplement adjacent area, in above-mentioned steps S601, S602, S604 and S605：
Default first threshold value, can bias 1 field (Nei by the adjacent area level parameter level set up to the cell
Offset1) embody, the relative door of the signal intensity for setting serving cell where the signal intensity of the cell is better than terminal
Limit；
Default second threshold value, can bias 2 field (Nei by the adjacent area level parameter level set up to the cell
Offset2) embody, it is all small in serving cell where the signal intensity of the cell is better than terminal and original adjacent area for setting
The relative threshold of the signal intensity in area；
Preset duration, can pass through the adjacent area set up to cell level parameter Duration field (Nei_time_to_
Trigger) embody, for setting the signal intensity of serving cell where the signal intensity of the cell is better than terminal or being better than
The time being had to last in serving cell and original adjacent area after the signal intensity of all cells；
Default 3rd threshold value, can pass through the adjacent area set up to the cell level absolute thresholding field of parameter level
(Nei_LevelThs) embody, the level absolute threshold value of serving cell is higher than for setting the signal intensity of the cell.
Meet terminal and cut the switching condition of original adjacent area from serving cell for prior art, will not be repeated here.
In embodiments of the present invention, after determining the supplement adjacent area that terminal can be cut in supplement adjacent area, it can pass through
Following manner determines the cell that a cell switches as terminal from current service cell：
Power budget switching value (the Power Budget of each cell in the supplement adjacent area determined are calculated respectively
Evaluation, PBGT)；
The cell that the maximum cell of the power budget switching value calculated is switched as terminal from current service cell.
It is of course also possible to determine the cell switched for terminal from current service cell by other means, herein no longer
Enumerate one by one.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of creating device based on above-mentioned supplement adjacent area
Switching device, the principle of problem and the switching method of the foregoing creation method based on above-mentioned supplement adjacent area are solved by the device
It is similar, therefore the implementation of the device may refer to the implementation of preceding method, repeats part and repeats no more.
A kind of switching device of creating device based on above-mentioned supplement adjacent area provided in an embodiment of the present invention, as shown in fig. 7,
Including：
Determining module 701, for needing to be switched to the original neighbour of serving cell from the serving cell being currently located in terminal
Qu Shi, however, it is determined that can not successfully be cut into original adjacent area, determines the benefit that terminal can be cut in the supplement adjacent area of serving cell
Fill adjacent area；
Handover module 702, for terminal to be switched into the supplement adjacent area that determining module 701 is determined from current service cell
In a cell.
It is preferred that determining module 701, specifically in the supplement adjacent area of serving cell, following all conditions will be met
Cell be defined as the supplement adjacent area that terminal can be cut：
The signal intensity that the signal intensity of supplement adjacent area exceedes serving cell reaches default first threshold value, and exceed
Time span reaches preset duration；
The signal intensity of supplement adjacent area exceedes the signal intensity of serving cell and the signal intensity of all original adjacent areas reaches
Default second threshold value, and the time span exceeded reaches preset duration；
The signal intensity for supplementing adjacent area exceedes default 3rd threshold value；
Supplement adjacent area meets the switching condition that terminal cuts original adjacent area from serving cell.
Creation method, switching method and the device of a kind of supplement adjacent area provided in an embodiment of the present invention, in supplement adjacent area
In creation method, when terminal is currently located serving cell and requires supplementation with establishment adjacent area, following two kinds of strategy and suggestions can be passed through
BCCH frequencies and the BCCH frequency identical cells of any adjacent area in original adjacent area are used as the supplement adjacent area of current service cell, tool
Body, the first：Selected in the cell in addition to the original adjacent area of serving cell controlled from the BSC belonging to serving cell or RNC
Select；Second：Selected from the cell for BSC or the RNC control being not belonging to belonging to serving cell.When terminal is needed from being currently located
Serving cell when being switched to original adjacent area, can be to foregoing establishment in the case where can not successfully be cut into original adjacent area
Supplement adjacent area is switched over.So, when serving cell needs switching, it is no longer limited by original adjacent area to switch,
Can also the switching of terminal can be cut into supplement adjacent area provided in an embodiment of the present invention cell so that avoid it is existing can not and
When the problem of cut or can not successfully be cut into weak level caused by original adjacent area, poor speech quality and call drop.Furthermore, existing
In technology, original adjacent area can only at most include 32 adjacent areas, and the quantity of supplement adjacent area provided in an embodiment of the present invention can have
A lot, like this, in traffic close quarters, the switching demand of user can be met.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (9)
1. a kind of adjacent area switching method, it is characterised in that including：
When terminal needs to be switched to the original adjacent area of the serving cell from the serving cell being currently located, however, it is determined that Wu Facheng
Work(is cut into the original adjacent area, and the supplement adjacent area that terminal can be cut is determined in the supplement adjacent area of the serving cell；
A cell during terminal to be switched to the supplement adjacent area determined from current service cell；
In the supplement adjacent area of the serving cell, the supplement adjacent area for meeting following all conditions is defined as into terminal to cut
Supplement adjacent area, including：
The signal intensity that the signal intensity of supplement adjacent area exceedes the serving cell reaches default first threshold value, and exceed
Time span reaches preset duration；
The signal intensity of supplement adjacent area exceedes the serving cell and the signal intensity of all original adjacent areas reaches default second
Threshold value, and the time span exceeded reaches the preset duration；
The signal intensity for supplementing adjacent area exceedes default 3rd threshold value；
Supplement adjacent area meets the switching condition that terminal cuts original adjacent area from serving cell；
Wherein, the supplement adjacent area of the serving cell is obtained according to following method：
When terminal is currently located serving cell and requires supplementation with establishment adjacent area, from the base station controller belonging to the serving cell
In BSC or the cell in addition to the original adjacent area of the serving cell of radio network controller (RNC) control, or from being not belonging to
In the cell that base station controller BSC or radio network controller (RNC) belonging to the serving cell are controlled, selection Broadcasting Control letter
Road BCCH frequencies and the BCCH frequency identical cells of any adjacent area in the original adjacent area, the original adjacent area of the serving cell
The cell that can be cut for the terminal being pre-configured with；
The cell of selection is created as to the supplement adjacent area of the serving cell.
2. the method as described in claim 1, it is characterised in that described that terminal is switched to what is determined from current service cell
A cell in adjacent area is supplemented, is specifically included：
The power budget switching value of each cell in the supplement adjacent area determined is calculated respectively；
Terminal is switched to the maximum cell of the power budget switching value calculated from current service cell.
3. the method as described in claim 1, it is characterised in that the selection BCCH frequencies and any neighbour in the original adjacent area
The BCCH frequency identical cells in area, are specifically included：
In the case where network parameter meets preparatory condition, selection BCCH frequencies and the BCCH of any adjacent area in the original adjacent area
Frequency identical cell.
4. method as claimed in claim 3, it is characterised in that the network parameter meets preparatory condition, specifically includes：
The BSC or RNC, selected cell are provided with supplementing the condition for creating adjacent area for serving cell.
5. the method as any one of claim 2-4, it is characterised in that also include：
From the cell for BSC or the RNC control being not belonging to belonging to the serving cell, selection BCCH frequencies with the original neighbour
The cell that the BCCH frequencies of any adjacent area are differed in area；
The cell of selection is added in the original adjacent area of the serving cell.
6. a kind of adjacent area switching device, it is characterised in that including：
Determining module, for needing to be switched to the original adjacent area of the serving cell from the serving cell being currently located in terminal
When, however, it is determined that the original adjacent area can not be successfully cut into, determines that terminal can be cut in the supplement adjacent area of the serving cell
The cell entered；
Handover module, for terminal is switched to that determining module determines from current service cell supplement adjacent area in it is one small
Area；
The determining module, specifically in the supplement adjacent area of the serving cell, the supplement of following conditions being met simultaneously
Adjacent area is defined as the supplement adjacent area that terminal can be cut：The signal intensity for supplementing adjacent area exceedes the signal intensity of the serving cell
Default first threshold value is reached, and the time span exceeded reaches preset duration；The signal intensity of adjacent area is supplemented more than described
The signal intensity of serving cell and all original adjacent areas reaches default second threshold value, and the time span exceeded reach it is described
Preset duration；The signal intensity for supplementing adjacent area exceedes default 3rd threshold value；Supplement adjacent area meets terminal and cut from serving cell
Enter the switching condition of original adjacent area；
And, in addition to：
Selecting module, for when terminal is currently located serving cell and requires supplementation with establishment adjacent area, from belonging to the serving cell
Base station controller BSC or radio network controller (RNC) control the cell in addition to the original adjacent area of the serving cell in,
Or from the cell for base station controller BSC or the radio network controller (RNC) control being not belonging to belonging to the serving cell, choosing
BCCH channel of broadcast control frequency and the BCCH frequency identical cells of any adjacent area in the original adjacent area are selected, the service is small
The original adjacent area in area is the cell that the terminal being pre-configured with can be cut；
Creation module, the cell for the selecting module to be selected is created as the supplement adjacent area of the serving cell.
7. device as claimed in claim 6, it is characterised in that the handover module, specifically for calculating what is determined respectively
Supplement the power budget switching value of each cell in adjacent area；Terminal is switched to the power budget calculated from current service cell to cut
Change the maximum cell of value.
8. device as claimed in claim 6, it is characterised in that the selecting module, specifically for meeting pre- in network parameter
If in the case of condition, selection BCCH frequencies and the BCCH frequency identical cells of any adjacent area in the original adjacent area.
9. such as the device of claim 7 or 8, it is characterised in that also include：Add module,
The selecting module, is additionally operable to from the cell for BSC or the RNC control being not belonging to belonging to the serving cell, selection
The cell that BCCH frequencies are differed with the BCCH frequencies of any adjacent area in the original adjacent area；
Add module, the cell for the selecting module to be selected is added to the original adjacent area of the serving cell.
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| CN201210421668.4A CN103796259B (en) | 2012-10-29 | 2012-10-29 | A kind of creation method, switching method and the device of supplement adjacent area |
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| CN1675956A (en) * | 2002-08-21 | 2005-09-28 | 摩托罗拉公司 | An apparatus and method for resource allocation in a communication system |
| CN101370262A (en) * | 2007-08-15 | 2009-02-18 | 中兴通讯股份有限公司 | Neighbor section list updating method and system |
| CN101778412A (en) * | 2010-02-25 | 2010-07-14 | 华为技术有限公司 | Method and device for optimizing relation between neighbor cells |
| CN102075902A (en) * | 2009-11-23 | 2011-05-25 | 中国移动通信集团北京有限公司 | Method and device for determining new neighbor cell of serving cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102640532B (en) * | 2009-11-19 | 2015-02-18 | 日本电气株式会社 | Wireless communication system, adjacent-cell list optimizing system, base station and adjacent-cell list updating method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1675956A (en) * | 2002-08-21 | 2005-09-28 | 摩托罗拉公司 | An apparatus and method for resource allocation in a communication system |
| CN101370262A (en) * | 2007-08-15 | 2009-02-18 | 中兴通讯股份有限公司 | Neighbor section list updating method and system |
| CN102075902A (en) * | 2009-11-23 | 2011-05-25 | 中国移动通信集团北京有限公司 | Method and device for determining new neighbor cell of serving cell |
| CN101778412A (en) * | 2010-02-25 | 2010-07-14 | 华为技术有限公司 | Method and device for optimizing relation between neighbor cells |
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