CN103781076B - Physical cell identify distribution method and device - Google Patents
Physical cell identify distribution method and device Download PDFInfo
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- CN103781076B CN103781076B CN201410020173.XA CN201410020173A CN103781076B CN 103781076 B CN103781076 B CN 103781076B CN 201410020173 A CN201410020173 A CN 201410020173A CN 103781076 B CN103781076 B CN 103781076B
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Abstract
The invention relates to the technical field of wireless communication, and discloses a physical cell identify distribution method and device. In the scheme, in the physical cell identify distribution process, distribution is performed based on the condition that cell antenna feeder interference is avoided, so the physical cell identify distribution method and device provided in the embodiments of the invention can be used to avoid the antenna feeder interference caused in the physical cell identify distribution process.
Description
Technical field
The present invention relates to wireless communication technology field, more particularly to a kind of Physical Cell Identifier distribution method and device.
Background technology
Due to TD-LTE（Time Division Long Term Evolution, time division synchronous Long Term Evolution）In system,
Physical Cell Identifier（Mark）Bind one by one with the mechanism such as esource impact, code resource distribution and frequency hopping, so physical area mark
The same TD-SCDMA of configuration of knowledge（Time Division Synchronized Code Division Multiple Access,
TD SDMA）Scrambler distributional effects in system quite, is particularly important in identical networking.
Physical Cell Identifier be in physical channel scramble initial value generate main decision information, particularly broadcast channel and
Control channel, the dependency of Physical Cell Identifier determines the dependency of control channel scrambler, and the interference to channel plays key
Effect.
Due to Physical Cell Identifier and PSC（Primary Synchronization Code, Primary Synchronisation Code）/SSC
（Secondary Synchronization Code, secondary synchronization code）Sequence index number correspond, in order to avoid adjacent little
Area produces interference, needs reasonably to distribute 504 physical-layer cell identifiers.Due to the interference between co-frequency cell it is main
Disturb for MOD3, i.e. interference between MOD3 identicals co-frequency cell is more serious, therefore, physics is carried out in TD-LTE system
When cell ID distributes, it is to avoid MOD3 interference becomes one of key technology.
In prior art, in order to avoid MOD3 interference, when Physical Cell Identifier distribution is carried out, simply using little according to neighbour
The different principle of MOD3 remainders between area carries out the distribution of Physical Cell Identifier, and aforesaid way does not account for physical area mark
The antenna feeder interference between adjacent area can be also produced during the distribution of knowledge.
In sum, at present the scheme of distribution Physical Cell Identifier can make to produce stronger antenna feeder interference between neighbor cell.
The content of the invention
The embodiment of the present invention provides a kind of Physical Cell Identifier distribution method and device, to avoid causing antenna feeder to disturb.
Concrete technical scheme provided in an embodiment of the present invention is as follows：
A kind of Physical Cell Identifier distribution method, including：
For all base stations of designated area, the current Physical Cell Identifier of the cell that covered based on each base station, it is determined that
The cell covered to base station redistributes the priority of Physical Cell Identifier, according to the priority each base station is covered successively
All cells of lid carry out redistributing for Physical Cell Identifier；
Any one base station is specific to, following operation is performed respectively：
According to allocation strategy, it is determined that the default at least one physical area mark for distributing to all cells that the base station is covered
Know combination；
It is little higher than the allocated physics of all cells of all base stations of the priority of the base station based on corresponding priority
Area identifies, and calculates total antenna feeder interference of the base station under each Physical Cell Identifier combination；
The corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, all cells that the base station is covered
Carry out the distribution of Physical Cell Identifier；
After all base stations of the designated area have been carried out the distribution of Physical Cell Identifier, the designated area is judged
The antenna feeder interference coefficient sum of all cells that includes of all base stations whether reach predetermined threshold value, if so, terminate thing
Reason cell ID distribution；Otherwise, repeat the above steps.
A kind of Physical Cell Identifier distributor, including：
First allocation unit, for for all base stations of designated area, the cell covered based on each base station to be current
Physical Cell Identifier, it is determined that the cell covered to base station redistributes the priority of Physical Cell Identifier, according to the priority
Successively redistributing for Physical Cell Identifier is carried out to all cells that each base station covers；
Determining unit, for being specific to any one base station, performs respectively following operation：According to allocation strategy, it is determined that in advance
If distributing at least one Physical Cell Identifier combination of all cells that the base station is covered；
Computing unit, for based on corresponding priority higher than the base station priority all base stations all cells
The Physical Cell Identifier of distribution, calculates total antenna feeder interference of the base station under each Physical Cell Identifier combination；
Second allocation unit, for the corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, to this
All cells that base station covers carry out the distribution of Physical Cell Identifier；
Identifying unit, for after all base stations of the designated area have been carried out the distribution of Physical Cell Identifier, sentencing
Whether the antenna feeder interference coefficient sum of all cells that all base stations of the fixed designated area include reaches pre-determined threshold
Value, if so, terminates Physical Cell Identifier distribution；Otherwise, repeat the above steps.
The present invention has the beneficial effect that：
In prior art, in order to avoid MOD3 interference, when Physical Cell Identifier distribution is carried out, simply using little according to neighbour
The different principle of MOD3 remainders between area carries out the distribution of Physical Cell Identifier, and aforesaid way does not account for physical area mark
The distribution of knowledge can also produce the antenna feeder interference between adjacent area, and in the embodiment of the present invention, for all base stations of designated area, base
In the current Physical Cell Identifier of the cell of each base station covering, it is determined that the cell covered to base station redistributes physical area mark
All cells that each base station covers are carried out dividing again for Physical Cell Identifier by the priority of knowledge successively according to priority
Match somebody with somebody；Any one base station is specific to, following operation is performed respectively：According to allocation strategy, covered it is determined that presetting and distributing to the base station
At least one Physical Cell Identifier combination of all cells of lid；It is higher than the institute of the priority of the base station based on corresponding priority
There is the allocated Physical Cell Identifier of all cells of base station, calculate the base station total under each Physical Cell Identifier combination
Antenna feeder is disturbed；The corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, what the base station was covered is all little
Area carries out the distribution of Physical Cell Identifier；After all base stations of designated area have been carried out the distribution of Physical Cell Identifier, sentence
Whether the antenna feeder interference coefficient sum for determining all cells that all base stations of designated area include reaches predetermined threshold value, if
It is to terminate Physical Cell Identifier distribution；Otherwise, repeat the above steps, in this scenario, when Physical Cell Identifier is distributed, be
It is allocated in the case of being disturbed based on the antenna feeder for avoiding cell, therefore, the physical area mark provided in the embodiment of the present invention
Know the method and device of distribution, it is to avoid the antenna feeder interference caused when Physical Cell Identifier is distributed.
Description of the drawings
Figure 1A is the detail flowchart for distributing Physical Cell Identifier in the embodiment of the present invention；
Figure 1B is the schematic diagram of α, β in the embodiment of the present invention；
Fig. 2 is the embodiment for distributing Physical Cell Identifier in the embodiment of the present invention；
Fig. 3 is the illustrative view of functional configuration of the device for distributing Physical Cell Identifier in the embodiment of the present invention.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/
Or ", only a kind of incidence relation of description affiliated partner, represents there may be three kinds of relations, and for example, A and/or B can be with table
Show：Individualism A, while there is A and B, individualism B these three situations.In addition, letter "/" herein, before and after typicallying represent
Affiliated partner is a kind of relation of "or".
The antenna feeder interference between adjacent area can be also produced for the distribution for solving Physical Cell Identifier present in prior art
Problem, in the embodiment of the present invention, a kind of method and device of Physical Cell Identifier distribution is proposed, in this scenario, for referring to
Determine all base stations in region, the current Physical Cell Identifier of the cell based on the covering of each base station, it is determined that to the little of base station covering
Area redistributes the priority of Physical Cell Identifier, and thing is carried out to all cells that each base station covers successively according to priority
Manage redistributing for cell ID；Any one base station is specific to, following operation is performed respectively：According to allocation strategy, it is determined that in advance
If distributing at least one Physical Cell Identifier combination of all cells that the base station is covered；It is higher than based on corresponding priority
The allocated Physical Cell Identifier of all cells of all base stations of the priority of the base station, calculates the base station in each physics
Total antenna feeder interference under cell ID combination；The corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, it is right
All cells that the base station covers carry out the distribution of Physical Cell Identifier；When all base stations of designated area, to be carried out physics little
After the distribution of area's mark, judge whether is the antenna feeder interference coefficient sum of all cells that all base stations of designated area include
Predetermined threshold value is reached, if so, terminates Physical Cell Identifier distribution；Otherwise, repeat the above steps, in this scenario, in distribution
During Physical Cell Identifier, be based on avoid cell antenna feeder disturb in the case of be allocated, therefore, in the embodiment of the present invention
The method and device of the Physical Cell Identifier distribution of offer, it is to avoid the antenna feeder interference caused when Physical Cell Identifier is distributed.
The preferred embodiment of the present invention is described in detail with reference to Figure of description, it will be appreciated that this place
The preferred embodiment of description is merely to illustrate and explains the present invention, is not intended to limit the present invention, and in situation about not conflicting
Under, the feature in embodiment and embodiment in the application can be mutually combined.
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
Refering to shown in Figure 1A, in the embodiment of the present invention, the detailed process for distributing Physical Cell Identifier is as follows：
Step 100：For all base stations of designated area, the current physical area mark of the cell based on the covering of each base station
Know, it is determined that the cell covered to base station redistributes the priority of Physical Cell Identifier, according to priority successively to each base
The all cells for covering of standing carry out redistributing for Physical Cell Identifier；
Step 110：Any one base station is specific to, following operation is performed respectively：According to allocation strategy, it is determined that default distribution
At least one Physical Cell Identifier combination of all cells covered to the base station；
Step 120：Distributed higher than all cells of all base stations of the priority of the base station based on corresponding priority
Physical Cell Identifier, calculate total antenna feeder interference of the base station under the combination of each Physical Cell Identifier；
Step 130：The corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, covers to the base station
All cells carry out the distribution of Physical Cell Identifier；
Step 140：After all base stations of designated area have been carried out the distribution of Physical Cell Identifier, designated area is judged
The antenna feeder interference coefficient sum of all cells that includes of all base stations whether reach predetermined threshold value, if so, terminate thing
Reason cell ID distribution；Otherwise, repeat the above steps.
In the embodiment of the present invention, it is determined that the cell covered to base station redistributes the mode of the priority of Physical Cell Identifier
Have various, preferably, can be in the following way：
Determine the antenna feeder interference of each cell that base station is covered；
For any one base station, the antenna feeder of each cell that any one base station is covered disturbs sum as appointing
Anticipate a base station total antenna feeder interference；
The descending sort mode that total antenna feeder of each base station is disturbed, as the cell covered thing to base station is redistributed
The priority of reason cell ID.
Certainly, above-mentioned is to determine that the cell covered to base station redistributes one kind of the priority of Physical Cell Identifier in fact
Existing mode, in actual applications, also various implementations, here is no longer described in detail one by one.
For example, 3 base stations are covered under core net：Base station 1, base station 2, base station 3, each base station covers 3 cells：
Base station 1 covers cell 1, cell 2, cell 3；Base station 2 covers cell 4, cell 5, cell 6；Base station 3 covers cell 7, little
Area 8, cell 9.
First distinguish the antenna feeder interference of each cell of calculation base station cell 1- cell 9, it is the corresponding antenna feeder disturbed one of cell 1, little
Area 2 correspondence antenna feeder interference 2, cell 3 correspondence antenna feeder interference 3 ..., the correspondence antenna feeder of cell 9 interference 9, the interference of total antenna feeder of base station 1
The total antenna feeder disturbed one of 3 sums is disturbed for antenna feeder disturbed one, antenna feeder interference 2, antenna feeder, total antenna feeder interference of base station 2 is antenna feeder interference 4,
The total antenna feeder interference 2 of 6 sums is disturbed in antenna feeder interference 5, antenna feeder, and total antenna feeder interference of base station 3 is antenna feeder interference 7, antenna feeder interference 8, day
The total antenna feeder interference 3 of feedback 9 sums of interference, if the descending sort mode of total antenna feeder interference is：Total antenna feeder interference 2, total antenna feeder disturbed one,
Total antenna feeder interference 3, then first to the cell that base station 2 covers carry out the distribution of Physical Cell Identifier, then, then base station 1 is covered
Cell carries out the distribution of Physical Cell Identifier, finally, then carries out the distribution of Physical Cell Identifier to the cell that base station 3 covers, and connects
Get off, whether the antenna feeder interference coefficient sum for judging the cell 1- cell 9 after distribution has reached predetermined threshold value, if so,
The distribution of Physical Cell Identifier is then completed, if not having, each cell of difference calculation base station cell 1- cell 9 is returned again to
Antenna feeder is disturbed.
In the embodiment of the present invention, determining the antenna feeder interference of each cell that base station is covered has various, preferably, can be with
In the following way realizing：
For any one cell of any one base station, following operation is performed respectively：
Determine the adjacent cell of any one cell；
Calculate the antenna feeder interference of any one cell and any one adjacent cell in adjacent cell；
With the antenna feeder of each adjacent cell sum will be disturbed to disturb as the antenna feeder of any one cell.
For example, 3 base stations are covered under core net：Base station 1, base station 2, base station 3, each base station covers 3 cells：
Base station 1 covers cell 1, cell 2, cell 3；Base station 2 covers cell 4, cell 5, cell 6；Base station 3 covers cell 7, little
Area 8, cell 9.Assume that the adjacent cell for first determining cell 1 is cell 2, cell 3, then is divided when the antenna feeder for calculating cell 1 is disturbed
Not Ji Suan cell 1 and cell 2 antenna feeder disturbed one, cell 1 and the antenna feeder interference 2 of cell 3 then disturb antenna feeder disturbed one and antenna feeder
2 sums are disturbed as the antenna feeder of cell 1；In the same manner, calculate cell 2, cell 3 ..., the interference of the antenna feeder of cell 9 with calculate cell 1
Antenna feeder interference mode it is identical, here is no longer described in detail.
Certainly, one kind of the above-mentioned antenna feeder interference for being to determine each cell for being covered of base station that core net is covered is real
Existing mode, also various implementations in actual applications, here is no longer described in detail one by one.
In the embodiment of the present invention, the antenna feeder interference of any one cell and any one adjacent cell in adjacent cell is calculated, specifically
Including：
For any one adjacent cell of any one cell, following operation is performed respectively：
Calculate the antenna feeder interference coefficient of any one cell and any one adjacent cell；
Judge the incidence relation of any one cell and any one adjacent cell, wherein, incidence relation is correlation between the accumulation rate and speed, air exercise pass
Any one in system, non-non- air exercise relation in the same direction；
It is determined that weighted value corresponding with the incidence relation for judging, and the product between antenna feeder interference coefficient and weighted value is made
For the antenna feeder interference of any one adjacent cell in any one cell and adjacent cell.
For example, the adjacent cell of cell 1 is cell 2, cell 3, when the antenna feeder for calculating cell 1 is disturbed, first determines cell 1
The antenna feeder interference coefficient 2 of antenna feeder interference coefficient 1, cell 1 with cell 2 and cell 3, then determine associating for cell 1 and cell 2
Relation is air exercise cell, when cell 1 is cell in the same direction with the incidence relation of cell 3, if the such as institute of table 1 of the incidence relation between adjacent area
Show, can determine that the corresponding weighted value of air exercise cell is 1.5 according to table 1, the corresponding weighted value of cell in the same direction is 1.0, then
The antenna feeder interference of cell 1 is equal to the product of antenna feeder interference coefficient 1 and 1.5, and the sum of products of antenna feeder interference coefficient 2 and 1.0.
Again for example, the adjacent cell of cell 1 is cell 2, cell 3, when the antenna feeder for calculating cell 1 is disturbed, is first determined little
The antenna feeder interference coefficient 2 of the antenna feeder interference coefficient 1, cell 1 and cell 3 of area 1 and cell 2, then determine cell 1 with cell 2
Incidence relation is air exercise cell, when cell 1 is non-cell in the same direction to cracking down illegal activities with the incidence relation of cell 3, if the pass between adjacent area
Connection relation as shown in table 1, can determine that the corresponding weighted value of air exercise cell is 1.5 according to table 1, non-to cracking down illegal activities cell in the same direction
Corresponding weighted value is 0.5, then the antenna feeder interference of cell 1 is equal to the product of antenna feeder interference coefficient 1 and 1.5, and antenna feeder interference system
The sum of products of number 2 and 0.5.
The mapping table of the incidence relation of table 1 and weighted value
| Incidence relation | Weighted value |
| Air exercise cell | 1.5 |
| Cell in the same direction | 1.0 |
| It is non-to cracking down illegal activities cell in the same direction | 0.5 |
In the embodiment of the present invention, calculate any one cell has many with the mode of the antenna feeder interference coefficient of any one adjacent cell
Kind, preferably, can be in the following way：
Determine the switching rate that any one cell switches to any one adjacent cell；
Determine the distance between any one cell and any one adjacent cell；
Using the product between switching rate and distance as any one cell and any one adjacent cell antenna feeder interference coefficient.
For example, the adjacent cell of cell 1 is cell 2, cell 3, when the antenna feeder interference coefficient of cell 1 and cell 2 is calculated, first
The switching rate of cell 1 and cell 2 is calculated, then calculates the distance between cell 1 and cell 2, then by between switching rate and distance
Product is used as cell 1 and the antenna feeder interference coefficient of cell 2.In the same manner, calculate cell 1 and the antenna feeder interference coefficient of cell 3 with it is above-mentioned
Process is similar to, and here is no longer described in detail one by one.
In the embodiment of the present invention, determining the mode of the switching rate that any one cell switches to any one adjacent cell has various,
For example, cell 1 have switched 5 times to cell 2, have switched 10 times to cell 3, have switched 15 times to cell 4, then cell 1 is to cell 2
Switching rate=5/ (5+10+15)=0.17 of switching, switching rate=10/30=0.33 that cell 1 switches to cell 3, cell 1 is to cell
Switching rate=the 15/30=0.5 of 4 switchings.
In order to improve the antenna feeder interference coefficient of the cell determined and adjacent cell, in the embodiment of the present invention, it is determined that arbitrarily
When the distance between one cell and any one adjacent cell, it may be determined that between any one cell and any one adjacent cell it is equivalent away from
From, now, using the product between switching rate and distance as any one cell and any one adjacent cell antenna feeder interference coefficient, tool
Body is：
It is with the antenna feeder interference of any one adjacent cell using the product between switching rate and equivalent distances as any one cell
Number.
In the embodiment of the present invention, it is determined that during equivalent distances between any one cell and any one adjacent cell, specifically may be used
To be calculated using equation below one：
D=d × (1+x × cos (β)-x × cos (α))（Formula one）
Wherein, D is the equivalent distances between cell and adjacent cell；D is the distance between cell and adjacent cell；X is equivalent
Coefficient；α is the straight line that the first party parallactic angle of any one cell is located, and the line of any one cell and any one adjacent area between
Acute angle；β is the straight line that the second party parallactic angle of any one adjacent area is located, and the line of any one cell and any one adjacent area between
Acute angle, α, β are as shown in Figure 1B.
During the present invention is implemented, judge that any one cell has various with the mode of the incidence relation of any one adjacent cell, preferably
, if α+|（180-β）| predetermined threshold value of not up to fighting each other, any one cell is air exercise adjacent area with any one adjacent cell；Otherwise,
If alpha-beta is not up to predetermined threshold value in the same direction, any one cell is adjacent area in the same direction with any one adjacent cell；Otherwise, any one cell
It is non-to cracking down illegal activities adjacent area in the same direction with any one adjacent cell, wherein, preferably, air exercise predetermined threshold value is 90 °, pre-determined threshold in the same direction
It is worth for 20 °.
In the embodiment of the present invention, according to allocation strategy, it is determined that default distribute to all cells that the base station covered extremely
A kind of mode of few Physical Cell Identifier combination has various, preferably, can be in the following way：
Determine the default at least one physical area mark for distributing to all cells that the base station is covered according to MOD3 modes
Know combination.
For example, there are tri- cells of A1, A2, A3 under the N1 of base station, according to MOD3 modes, first distribute MOD3 remainders to A1 cells
For 0 Physical Cell Identifier, to A2 cells the Physical Cell Identifier that MOD3 remainders are 1 is distributed, to A3 cells MOD3 remainders are distributed
For 2 Physical Cell Identifier, now, the mark composition of the physical area of tri- cells of A1, A2, A3 is combined as the first group
Close, then calculate total antenna feeder interference I1 of the base station N1 under the first combination；Then, it is then to A1 cells distribution MOD3 remainders 1
Physical Cell Identifier, distribute the Physical Cell Identifier that MOD3 remainders are 2 to A2 cells, be 0 to A3 cells distribution MOD3 remainders
Physical Cell Identifier, now, the physical area of tri- cells of A1, A2, A3 mark composition be combined as second combination, so
Afterwards, then total antenna feeder interference I2 of base station N1 under second combination is calculated；In this manner to tri- little differentiations of A1, A2, A3
With Physical Cell Identifier, and calculate corresponding total antenna feeder interference after distribution Physical Cell Identifier each time；If finally obtaining n always
Antenna feeder is disturbed：I1, I2 ..., In, and determine I2 for minima, then will distribute the physics that MOD3 remainders are 1 to A1 cells little
Area identifies, and to A2 cells the Physical Cell Identifier that MOD3 remainders are 2 is distributed, and distributes the physics that MOD3 remainders are 0 to A3 cells little
Area identifies, and as the cell to base station N1 the allocation result of Physical Cell Identifier is carried out.
Embodiment for a better understanding of the present invention, concrete application scene given below, for distributing Physical Cell Identifier
Process, make and describing in further detail, it is concrete as shown in Figure 2：
Core net covers 3 base stations, and each base station covers 3 cells.
Step 200：The antenna feeder interference of 9 cells is calculated respectively；
Step 210：The antenna feeder interference of the cell covered according to each base station calculates respectively total antenna feeder of 3 base stations and does
Disturb；
Step 220：According to the descending sort mode of 3 total antenna feeder interference, 9 cells that 3 base stations cover are entered successively
The distribution of row Physical Cell Identifier；
Step 230：Whether the antenna feeder interference coefficient sum for judging 9 cells after distributing reaches predetermined threshold value；
If so, the distribution of Physical Cell Identifier is completed；Otherwise return to step 200.
As shown in figure 3, the embodiment of the present invention provides a kind of Physical Cell Identifier distributor, the device includes：First point
With unit 30, determining unit 31, computing unit 32, the second allocation unit 33, identifying unit 34, wherein,
First allocation unit 30, for for all base stations of designated area, the cell covered based on each base station to be current
Physical Cell Identifier, it is determined that the cell covered to base station redistributes the priority of Physical Cell Identifier, according to priority according to
It is secondary that redistributing for Physical Cell Identifier is carried out to all cells that each base station covers；
Determining unit 31, for being specific to any one base station, performs respectively following operation：According to allocation strategy, it is determined that
The default at least one Physical Cell Identifier combination for distributing to all cells that the base station is covered；
Computing unit 32, for being based on all cells of all base stations of the corresponding priority higher than the priority of the base station
Allocated Physical Cell Identifier, calculates total antenna feeder interference of the base station under each Physical Cell Identifier combination；
Second allocation unit 33 is right for the corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder
All cells that the base station covers carry out the distribution of Physical Cell Identifier；
Identifying unit 34, for after all base stations of designated area have been carried out the distribution of Physical Cell Identifier, judging
Whether the antenna feeder interference coefficient sum of all cells that all base stations of designated area include reaches predetermined threshold value, if
It is to terminate Physical Cell Identifier distribution；Otherwise, repeat the above steps.
Preferably, in the embodiment of the present invention, the first allocation unit 30 specifically for：
Determine the antenna feeder interference of each cell that base station is covered；
For any one base station, the antenna feeder of each cell that any one base station is covered disturbs sum as appointing
Anticipate a base station total antenna feeder interference；
The descending sort mode that total antenna feeder of each base station is disturbed, as the cell covered thing to base station is redistributed
The priority of reason cell ID.
Preferably, in the embodiment of the present invention, the first allocation unit 30 determines the antenna feeder of each cell that base station is covered
During interference, specially：
For any one cell of any one base station, following operation is performed respectively：
Determine the adjacent cell of any one cell；
Calculate the antenna feeder interference of any one cell and any one adjacent cell in adjacent cell；
With the antenna feeder of each adjacent cell sum will be disturbed to disturb as the antenna feeder of any one cell.
Preferably, in the embodiment of the present invention, the first allocation unit 30 calculates any one in any one cell and adjacent cell
When the antenna feeder of adjacent cell is disturbed, specially：
For any one adjacent cell of any one cell, following operation is performed respectively：
Calculate the antenna feeder interference coefficient of any one cell and any one adjacent cell；
Judge the incidence relation of any one cell and any one adjacent cell, wherein, incidence relation is correlation between the accumulation rate and speed, air exercise pass
Any one in system, non-non- air exercise relation in the same direction；
It is determined that weighted value corresponding with the incidence relation for judging, and the product between antenna feeder interference coefficient and weighted value is made
For the antenna feeder interference of any one adjacent cell in any one cell and adjacent cell.
Preferably, in the embodiment of the present invention, the first allocation unit 30 calculates the day of any one cell and any one adjacent cell
During feedback interference coefficient, specially：
Determine the switching rate that any one cell switches to any one adjacent cell；
Determine the distance between any one cell and any one adjacent cell；
Using the product between switching rate and distance as any one cell and any one adjacent cell antenna feeder interference coefficient.
Preferably, in the embodiment of the present invention, the first allocation unit 30 is determined between any one cell and any one adjacent cell
Distance, specially：
Determine the equivalent distances between any one cell and any one adjacent cell；
Using the product between switching rate and distance as any one cell and the antenna feeder interference coefficient of any one adjacent cell, have
Body includes：
It is with the antenna feeder interference of any one adjacent cell using the product between switching rate and equivalent distances as any one cell
Number.
Preferably, in the embodiment of the present invention, the first allocation unit 30 judges the pass of any one cell and any one adjacent cell
During connection relation, specially：
If α+|（180-β）| predetermined threshold value of not up to fighting each other, any one cell is air exercise adjacent area with any one adjacent cell；
Otherwise, if alpha-beta is not up to predetermined threshold value in the same direction, any one cell is adjacent area in the same direction with any one adjacent cell；Otherwise, it is any one
Cell is non-to cracking down illegal activities adjacent area in the same direction with any one adjacent cell；
Wherein, α is the straight line at the first party parallactic angle place of any one cell, with any one cell and the company of any one adjacent area
Acute angle between line；β is the straight line that the second party parallactic angle of any one adjacent area is located, with any one cell and the company of any one adjacent area
Acute angle between line.
Preferably, in the embodiment of the present invention, determining unit 31 specifically for：
Determine the default at least one physical area mark for distributing to all cells that the base station is covered according to MOD3 modes
Know combination.
In sum, in the embodiment of the present invention, a kind of method and device of distribution Physical Cell Identifier is proposed, in the program
In, for all base stations of designated area, the current Physical Cell Identifier of the cell based on the covering of each base station, it is determined that to base station
The cell of covering redistributes the priority of Physical Cell Identifier, according to priority successively to all little of each base station covering
Area carries out redistributing for Physical Cell Identifier；Any one base station is specific to, following operation is performed respectively：According to distribution plan
Slightly, it is determined that the default at least one Physical Cell Identifier combination for distributing to all cells that the base station is covered；Based on corresponding
Priority calculates the base station and exists higher than the allocated Physical Cell Identifier of all cells of all base stations of the priority of the base station
Total antenna feeder interference under each Physical Cell Identifier combination；The corresponding physical area mark of minima in the interference of total antenna feeder
Know combination, the distribution of Physical Cell Identifier is carried out to all cells that the base station covers；When all base stations of designated area are all held
Go after the distribution of Physical Cell Identifier, judged the antenna feeder interference coefficient phase of all cells that all base stations of designated area include
Plus whether sum reaches predetermined threshold value, if so, terminate Physical Cell Identifier distribution；Otherwise, repeat the above steps, in the program
In, distribute Physical Cell Identifier when, be based on avoid cell antenna feeder disturb in the case of be allocated, therefore, this
The method and device of the Physical Cell Identifier distribution provided in bright embodiment, it is to avoid cause when Physical Cell Identifier is distributed
Antenna feeder is disturbed.
The present invention is with reference to method according to embodiments of the present invention, device（System）And the flow process of computer program
Figure and/or block diagram are describing.It should be understood that can be by computer program instructions flowchart and/or each stream in block diagram
The combination of journey and/or square frame and flow chart and/or the flow process in block diagram and/or square frame.These computer programs can be provided
The processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing units is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing units
The device of present one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or the function in multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing units with spy
In determining the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory is produced to be included referring to
Make the manufacture of device, the command device realize in one flow process of flow chart or one square frame of multiple flow processs and/or block diagram or
Function in multiple square frames.
These computer program instructions also can be loaded in computer or other programmable data processing units so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented process, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow process of flow chart or multiple flow processs and/or block diagram one
The step of function in individual square frame or multiple square frames.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification without deviating from this to the embodiment of the present invention
The spirit and scope of bright embodiment.So, if these modifications of the embodiment of the present invention and modification belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to comprising these changes and modification.
Claims (16)
1. a kind of Physical Cell Identifier distribution method, it is characterised in that include：
For all base stations of designated area, the current Physical Cell Identifier of the cell based on the covering of each base station, it is determined that to base
The cell for covering of standing redistributes the priority of Physical Cell Identifier, according to the priority each base station is covered successively
All cells carry out redistributing for Physical Cell Identifier；
Any one base station is specific to, following operation is performed respectively：
According to allocation strategy, it is determined that the default at least one Physical Cell Identifier group for distributing to all cells that the base station is covered
Close；
Based on corresponding priority higher than the allocated physical area mark of all cells of all base stations of the priority of the base station
Know, calculate total antenna feeder interference of the base station under each Physical Cell Identifier combination；
All cells that the base station covers are carried out by the corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder
The distribution of Physical Cell Identifier；
After all base stations of the designated area have been carried out the distribution of Physical Cell Identifier, the institute of the designated area is judged
Whether the antenna feeder interference coefficient sum for having all cells that base station includes reaches predetermined threshold value, if so, terminates physics little
Area's mark distribution；Otherwise, repeat the above steps.
2. the method for claim 1, it is characterised in that it is determined that the cell covered to base station redistributes physical area mark
The priority of knowledge, specifically includes：
Determine the antenna feeder interference of each cell that base station is covered；
For any one base station, the antenna feeder of each cell that any one base station is covered disturbs sum as institute
State total antenna feeder interference of any one base station；
The descending sort mode that total antenna feeder of each base station is disturbed, as the cell covered thing to base station is redistributed
The priority of reason cell ID.
3. method as claimed in claim 2, it is characterised in that determine the antenna feeder interference of each cell that base station is covered,
Specifically include：
For any one cell of any one base station, following operation is performed respectively：
Determine the adjacent cell of any one cell；
Calculate the antenna feeder interference of any one adjacent cell in any one cell and the adjacent cell；
With the antenna feeder of each adjacent cell sum will be disturbed to disturb as the antenna feeder of any one cell.
4. method as claimed in claim 3, it is characterised in that calculate any in any one cell and the adjacent cell
The antenna feeder interference of one adjacent cell, specifically includes：
For described any one adjacent cell of any one cell, following operation is performed respectively：
Calculate the antenna feeder interference coefficient of any one cell and any one adjacent cell；
Judge the incidence relation of any one cell and any one adjacent cell, wherein, the incidence relation is pass in the same direction
Any one in system, air exercise relation, non-non- air exercise relation in the same direction；
It is determined that with the corresponding weighted value of incidence relation for judging, and by taking advantage of between the antenna feeder interference coefficient and the weighted value
Antenna feeder interference of the product as any one adjacent cell in any one cell and the adjacent cell.
5. method as claimed in claim 4, it is characterised in that calculate any one cell and any one adjacent cell
Antenna feeder interference coefficient, specifically includes：
Determine any one cell to the switching rate of any one adjacent cell switching；
Determine the distance between any one cell and described any one adjacent cell；
Using the product between the switching rate and the distance as any one cell and any one adjacent cell day
Feedback interference coefficient.
6. method as claimed in claim 5, it is characterised in that determine any one cell and any one adjacent cell it
Between distance, specifically include：
Determine the equivalent distances between any one cell and any one adjacent cell；
Using the product between the switching rate and the distance as any one cell and any one adjacent cell day
Feedback interference coefficient, specifically includes：
Using the product between the switching rate and the equivalent distances as any one cell and any one adjacent cell
Antenna feeder interference coefficient.
7. the method as described in any one of claim 4-6, it is characterised in that judge that any one cell is any one with described
The incidence relation of adjacent cell, specifically includes：
If α+| (180- β) | predetermined threshold values of not up to fighting each other, any one cell is air exercise with any one adjacent cell
Adjacent area；Otherwise, if alpha-beta is not up to predetermined threshold value in the same direction, any one cell is adjacent in the same direction with any one adjacent cell
Area；Otherwise, any one cell is non-to cracking down illegal activities adjacent area in the same direction with any one adjacent cell；
Wherein, the α is the straight line at the first party parallactic angle place of any one cell, with any one cell and described
The acute angle anticipated between the line of an adjacent area；The β is the straight line that the second party parallactic angle of any one adjacent area is located, with described
Acute angle between the line of a cell of anticipating and any one adjacent area.
8. the method for claim 1, it is characterised in that according to allocation strategy, distributes to the base station and is covered it is determined that default
At least one Physical Cell Identifier combination of all cells of lid, specifically includes：
Determine the default at least one Physical Cell Identifier group for distributing to all cells that the base station is covered according to the modes of MOD 3
Close.
9. a kind of Physical Cell Identifier distributor, it is characterised in that include：
First allocation unit, for for all base stations of designated area, the current physics of the cell based on the covering of each base station
Cell ID, it is determined that the cell covered to base station redistributes the priority of Physical Cell Identifier, according to the priority successively
Redistributing for Physical Cell Identifier is carried out to all cells that each base station covers；
Determining unit, for being specific to any one base station, performs respectively following operation：According to allocation strategy, it is determined that default point
At least one Physical Cell Identifier combination of all cells that the dispensing base station is covered；
Computing unit, for being distributed higher than all cells of all base stations of the priority of the base station based on corresponding priority
Physical Cell Identifier, calculate total antenna feeder interference of the base station under the combination of each Physical Cell Identifier；
Second allocation unit, for the corresponding Physical Cell Identifier combination of minima in the interference of total antenna feeder, to the base station
The all cells for covering carry out the distribution of Physical Cell Identifier；
Identifying unit, for after all base stations of the designated area have been carried out the distribution of Physical Cell Identifier, judging institute
Whether the antenna feeder interference coefficient sum for stating all cells that all base stations of designated area include reaches predetermined threshold value, if
It is to terminate Physical Cell Identifier distribution.
10. device as claimed in claim 9, it is characterised in that first allocation unit specifically for：
Determine the antenna feeder interference of each cell that base station is covered；
For any one base station, the antenna feeder of each cell that any one base station is covered disturbs sum as institute
State total antenna feeder interference of any one base station；
The descending sort mode that total antenna feeder of each base station is disturbed, as the cell covered thing to base station is redistributed
The priority of reason cell ID.
11. devices as claimed in claim 10, it is characterised in that it is each that first allocation unit determines that base station is covered
When the antenna feeder of individual cell is disturbed, specially：
For any one cell of any one base station, following operation is performed respectively：
Determine the adjacent cell of any one cell；
Calculate the antenna feeder interference of any one adjacent cell in any one cell and the adjacent cell；
With the antenna feeder of each adjacent cell sum will be disturbed to disturb as the antenna feeder of any one cell.
12. devices as claimed in claim 11, it is characterised in that first allocation unit calculate any one cell with
When the antenna feeder of any one adjacent cell in the adjacent cell is disturbed, specially：
For described any one adjacent cell of any one cell, following operation is performed respectively：
Calculate the antenna feeder interference coefficient of any one cell and any one adjacent cell；
Judge the incidence relation of any one cell and any one adjacent cell, wherein, the incidence relation is pass in the same direction
Any one in system, air exercise relation, non-non- air exercise relation in the same direction；
It is determined that with the corresponding weighted value of incidence relation for judging, and by taking advantage of between the antenna feeder interference coefficient and the weighted value
Antenna feeder interference of the product as any one adjacent cell in any one cell and the adjacent cell.
13. devices as claimed in claim 12, it is characterised in that first allocation unit calculate any one cell with
During the antenna feeder interference coefficient of any one adjacent cell, specially：
Determine any one cell to the switching rate of any one adjacent cell switching；
Determine the distance between any one cell and described any one adjacent cell；
Using the product between the switching rate and the distance as any one cell and any one adjacent cell day
Feedback interference coefficient.
14. devices as claimed in claim 13, it is characterised in that first allocation unit determine any one cell with
The distance between described any one adjacent cell, specially：
Determine the equivalent distances between any one cell and any one adjacent cell；
Using the product between the switching rate and the distance as any one cell and any one adjacent cell day
Feedback interference coefficient, specifically includes：
Using the product between the switching rate and the equivalent distances as any one cell and any one adjacent cell
Antenna feeder interference coefficient.
15. devices as described in any one of claim 12-14, it is characterised in that first allocation unit judges described appointing
During the incidence relation of a cell of anticipating and any one adjacent cell, specially：
If α+| (180- β) | predetermined threshold values of not up to fighting each other, any one cell is air exercise with any one adjacent cell
Adjacent area；Otherwise, if alpha-beta is not up to predetermined threshold value in the same direction, any one cell is adjacent in the same direction with any one adjacent cell
Area；Otherwise, any one cell is non-to cracking down illegal activities adjacent area in the same direction with any one adjacent cell；
Wherein, the α is the straight line at the first party parallactic angle place of any one cell, with any one cell and described
The acute angle anticipated between the line of an adjacent area；The β is the straight line that the second party parallactic angle of any one adjacent area is located, with described
Acute angle between the line of a cell of anticipating and any one adjacent area.
16. devices as claimed in claim 9, it is characterised in that the determining unit specifically for：
Determine the default at least one Physical Cell Identifier group for distributing to all cells that the base station is covered according to the modes of MOD 3
Close.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410020173.XA CN103781076B (en) | 2014-01-16 | 2014-01-16 | Physical cell identify distribution method and device |
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|---|---|---|---|
| CN201410020173.XA CN103781076B (en) | 2014-01-16 | 2014-01-16 | Physical cell identify distribution method and device |
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| CN103781076B true CN103781076B (en) | 2017-04-12 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104301908B (en) * | 2014-11-14 | 2018-01-05 | 河北电信设计咨询有限公司 | Physical Cell Identifier distribution method |
| CN104780560B (en) * | 2015-04-15 | 2018-11-09 | 广东怡创科技股份有限公司 | Cell PCI interference detection methods and system |
| CN105142172B (en) * | 2015-08-10 | 2018-10-26 | 上海大唐移动通信设备有限公司 | A kind of method and device of distribution Physical Cell Identifier |
| CN106817186B (en) * | 2015-11-30 | 2019-05-10 | ***通信集团广东有限公司 | A kind of method and device of Physical Cell Identifier PCI interference self-optimizing |
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