CN103781076A - Physical cell identify distribution method and device - Google Patents
Physical cell identify distribution method and device Download PDFInfo
- Publication number
- CN103781076A CN103781076A CN201410020173.XA CN201410020173A CN103781076A CN 103781076 A CN103781076 A CN 103781076A CN 201410020173 A CN201410020173 A CN 201410020173A CN 103781076 A CN103781076 A CN 103781076A
- Authority
- CN
- China
- Prior art keywords
- community
- base station
- antenna feeder
- adjacent cell
- physical cell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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, particularly a kind of Physical Cell Identifier distribution method and device.
Background technology
Due to TD-LTE(Time Division Long Term Evolution, synchronous Long Term Evolution of time-division) in system, the mechanism such as Physical Cell Identifier (mark) and resource mapping, code resource distribution and frequency hopping are bound one by one, so the configuration of Physical Cell Identifier is with TD-SCDMA(Time Division Synchronized Code Division Multiple Access, TD SDMA) scrambler distributional effects in system is suitable, seems particularly important in identical networking.
Physical Cell Identifier is major decision information, particularly broadcast channel and the control channel that in physical channel, scrambler initial value generates, and the correlation of Physical Cell Identifier has determined the correlation of control channel scrambler, plays a part crucial to the interference of channel.
Due to Physical Cell Identifier and PSC(Primary Synchronization Code, Primary Synchronisation Code)/SSC(Secondary Synchronization Code, secondary synchronization code) sequence index number one by one corresponding, produce and disturb for fear of neighbor cell, need to reasonably distribute 504 physical-layer cell identifiers.Disturb because the interference between co-frequency cell is mainly MOD3, the interference between the co-frequency cell that MOD3 is identical is comparatively serious, therefore, carries out Physical Cell Identifier and divide timing in TD-LTE system, and avoiding MOD3 to disturb becomes one of key technology.
In prior art, disturb for fear of MOD3, divide timing carrying out Physical Cell Identifier, just adopt and carry out the distribution of Physical Cell Identifier according to the different principle of the MOD3 remainder between adjacent cell, aforesaid way does not consider that the antenna feeder that point timing of Physical Cell Identifier also can produce between adjacent area disturbs.
In sum, distribute at present the scheme of Physical Cell Identifier can make the stronger antenna feeder of generation between neighbor cell disturb.
Summary of the invention
The embodiment of the present invention provides a kind of Physical Cell Identifier distribution method and device, in order to avoid causing antenna feeder to disturb.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A kind of Physical Cell Identifier distribution method, comprising:
For all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to described priority;
Specifically, for any base station, carry out respectively following operation:
According to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
The Physical Cell Identifier that priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs;
Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
When all base stations of described appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of judging all communities that all base stations of described appointed area comprise reaches predetermined threshold value, if so, finishing Physical Cell Identifier distributes; Otherwise, repeat above-mentioned steps.
A kind of Physical Cell Identifier distributor, comprising:
The first allocation units, for all base stations for appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to described priority;
Determining unit, for any base station, carries out respectively following operation for specifically: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
Computing unit, the Physical Cell Identifier having distributed higher than all communities of all base stations of the priority of this base station for the priority based on corresponding, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs;
The second allocation units, for Physical Cell Identifier combination corresponding to minimum value of disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
Identifying unit, be used for when all base stations of described appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of judging all communities that all base stations of described appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes; Otherwise, repeat above-mentioned steps.
Beneficial effect of the present invention is as follows:
In prior art, disturb for fear of MOD3, divide timing carrying out Physical Cell Identifier, just adopt and carry out the distribution of Physical Cell Identifier according to the different principle of the MOD3 remainder between adjacent cell, aforesaid way does not consider that the antenna feeder that the distribution of Physical Cell Identifier also can produce between adjacent area disturbs, and in the embodiment of the present invention, for all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to priority, specifically for any base station, carry out respectively following operation: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers, the Physical Cell Identifier that priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs, Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered, when all base stations of appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of all communities that all base stations of judgement appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes, otherwise, repeat above-mentioned steps, in this scheme, in the time distributing Physical Cell Identifier, to distribute in the situation based on avoiding the antenna feeder of community to disturb, therefore, method and device that the Physical Cell Identifier providing in the embodiment of the present invention distributes, avoided the antenna feeder causing in the time distributing Physical Cell Identifier to disturb.
Accompanying drawing explanation
Figure 1A is the detail flowchart that distributes 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 that distributes Physical Cell Identifier in the embodiment of the present invention;
Fig. 3 is the illustrative view of functional configuration of distributing the device of Physical Cell Identifier in the embodiment of the present invention.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In addition, term " system " and " network " are often used interchangeably in this article herein.Term "and/or" herein, is only a kind of incidence relation of describing affiliated partner, and expression can exist three kinds of relations, and for example, A and/or B, can represent: individualism A exists A and B, these three kinds of situations of individualism B simultaneously.In addition, alphabetical "/" herein, generally represents that forward-backward correlation is to liking a kind of relation of "or".
Also can produce in order to solve the distribution of the Physical Cell Identifier existing in prior art the problem that the antenna feeder between adjacent area disturbs, in the embodiment of the present invention, method and device that a kind of Physical Cell Identifier distributes are proposed, in this scheme, for all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to priority; Specifically for any base station, carry out respectively following operation: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers; The Physical Cell Identifier that priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs; Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered; When all base stations of appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of all communities that all base stations of judgement appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes; Otherwise, repeat above-mentioned steps, in this scheme, in the time distributing Physical Cell Identifier, to distribute in the situation based on avoiding the antenna feeder of community to disturb, therefore, method and device that the Physical Cell Identifier providing in the embodiment of the present invention distributes, avoided the antenna feeder causing in the time distributing Physical Cell Identifier to disturb.
Below in conjunction with Figure of description, the preferred embodiment of the present invention is elaborated, be to be understood that, preferred embodiment described herein is only for description and interpretation the present invention, be not intended to limit the present invention, and in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.
Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.
Consult shown in Figure 1A, in the embodiment of the present invention, distribute the detailed process of Physical Cell Identifier as follows:
Step 100: for all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to priority;
Step 110: specifically for any base station, carry out respectively following operation: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
Step 120: the Physical Cell Identifier that the priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs;
Step 130: Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
Step 140: when all base stations of appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of all communities that all base stations of judgement appointed area comprise reaches predetermined threshold value, if so, finishing Physical Cell Identifier distributes; Otherwise, repeat above-mentioned steps.
In the embodiment of the present invention, determine that mode that the priority of Physical Cell Identifier is redistributed in the community that covers to base station has multiple, preferably, can be in the following way:
The antenna feeder of determining each community that base station covers disturbs;
For any base station, the antenna feeder of each community that any base station is covered disturbs sum to disturb as total antenna feeder of any base station;
The descending sort mode that total antenna feeder of each base station is disturbed, as the priority of redistributing Physical Cell Identifier to the community of base station covering.
Certainly, above-mentionedly just determine that the community covering to base station redistributes a kind of implementation of the priority of Physical Cell Identifier, in actual applications, also have multiple implementation, describe in detail no longer one by one at this.
For example, under core net, cover 3 base stations: base station 1, base station 2, base station 3, each base station has covered 3 communities: base station 1 has covered community 1, community 2, community 3; Base station 2 has covered community 4, community 5, community 6; Base station 3 has covered community 7, community 8, community 9.
First the antenna feeder of each community of 1-community, calculation base station community 9 disturbs respectively, the corresponding antenna feeder disturbed one in community 1, the corresponding antenna feeder in community 2 disturbs 2, the corresponding antenna feeder in community 3 disturbs 3, the corresponding antenna feeder in community 9 disturbs 9, and total antenna feeder of base station 1 disturbs as antenna feeder disturbed one, antenna feeder disturbs 2, antenna feeder disturbs the total antenna feeder disturbed one of 3 sum, and total antenna feeder of base station 2 disturbs as antenna feeder interference 4, antenna feeder disturbs 5, antenna feeder disturbs the total antenna feeder of 6 sum to disturb 2, and total antenna feeder of base station 3 disturbs as antenna feeder interference 7, antenna feeder disturbs 8, antenna feeder disturbs the total antenna feeder of 9 sum to disturb 3, if the descending sort mode that total antenna feeder disturbs is: total antenna feeder disturbs 2, total antenna feeder disturbed one, total antenna feeder disturbs 3, the distribution of Physical Cell Identifier is carried out in the community first base station 2 being covered, then, the distribution of Physical Cell Identifier is carried out in the community again base station 1 being covered, finally, the distribution of Physical Cell Identifier is carried out in the community again base station 3 being covered, next, judge and distribute the antenna feeder interference coefficient sum of 1-community, Hou community 9 whether to reach predetermined threshold value, if, complete the distribution of Physical Cell Identifier, if do not have, then returned to the antenna feeder of each community of 1-community, calculation base station community 9 respectively and disturb.
In the embodiment of the present invention, the antenna feeder of determining each community that base station covers disturbs to be had multiplely, preferably, can realize in the following way:
For any community of any base station, carry out respectively following operation:
Determine the adjacent cell of any community;
The antenna feeder that calculates any adjacent cell in any community and adjacent cell disturbs;
To disturb sum to disturb as the antenna feeder of any community with the antenna feeder of each adjacent cell.
For example, under core net, cover 3 base stations: base station 1, base station 2, base station 3, each base station has covered 3 communities: base station 1 has covered community 1, community 2, community 3; Base station 2 has covered community 4, community 5, community 6; Base station 3 has covered community 7, community 8, community 9.Suppose in the time that the antenna feeder of calculation plot 1 disturbs, the adjacent cell of first determining community 1 is community 2, community 3, distinguish the antenna feeder disturbed one of calculation plot 1 and community 2, community 1 disturbs 2 with the antenna feeder of community 3 again, disturbs 2 sums to disturb as the antenna feeder of community 1 antenna feeder disturbed one and antenna feeder; In like manner, calculation plot 2, community 3 ..., community 9 antenna feeder disturb identically with the mode of the antenna feeder interference of calculation plot 1, no longer describe in detail at this.
Certainly, a kind of implementation that the antenna feeder of each community that the above-mentioned base station of just determining that core net covers covers disturbs, also has multiple implementation in actual applications, describes in detail no longer one by one at this.
In the embodiment of the present invention, the antenna feeder that calculates any adjacent cell in any community and adjacent cell disturbs, and specifically comprises:
For any adjacent cell of any community, carry out respectively following operation:
Calculate the antenna feeder interference coefficient of any community and any adjacent cell;
Judge the incidence relation of any community and any adjacent cell, wherein, incidence relation is any one in correlation between the accumulation rate and speed, air exercise relation, non-non-in the same way air exercise relation;
Weighted value corresponding to incidence relation of determining and judge, and the antenna feeder interference of product between antenna feeder interference coefficient and the weighted value any adjacent cell in any community and adjacent cell.
For example, the adjacent cell of community 1 is community 2, community 3, in the time that the antenna feeder of calculation plot 1 disturbs, first determine the antenna feeder interference coefficient 1 of community 1 and community 2, the antenna feeder interference coefficient 2 of community 1 and community 3, determining community 1 is air exercise community with the incidence relation of community 2 again, the incidence relation of community 1 and community 3 is during for community in the same way, if the incidence relation between adjacent area is as shown in table 1, be 1.5 can determine weighted value corresponding to air exercise community according to table 1, weighted value corresponding to community is 1.0 in the same way, the antenna feeder of community 1 disturbs the product that equals antenna feeder interference coefficient 1 and 1.5, the sum of products with antenna feeder interference coefficient 2 and 1.0.
Again for example, the adjacent cell of community 1 is community 2, community 3, in the time that the antenna feeder of calculation plot 1 disturbs, first determine the antenna feeder interference coefficient 1 of community 1 and community 2, the antenna feeder interference coefficient 2 of community 1 and community 3, determining community 1 is air exercise community with the incidence relation of community 2 again, community 1 and the incidence relation of community 3 are non-to cracking down illegal activities in the same way when community, if the incidence relation between adjacent area is as shown in table 1, be 1.5 can determine weighted value corresponding to air exercise community according to table 1, non-to cracking down illegal activities in the same way weighted value corresponding to community be 0.5, the antenna feeder of community 1 disturbs the product that equals antenna feeder interference coefficient 1 and 1.5, the sum of products with antenna feeder interference coefficient 2 and 0.5.
The mapping table of table 1 incidence relation and weighted value
| Incidence relation | Weighted value |
| Air exercise community | 1.5 |
| Community in the same way | 1.0 |
| Non-to cracking down illegal activities community in the same way | 0.5 |
In the embodiment of the present invention, the mode of calculating the antenna feeder interference coefficient of any community and any adjacent cell has multiple, preferably, and can be in the following way:
Determine the switching rate that switch to any adjacent cell any community;
Determine the distance between any community and any adjacent cell;
Product between switching rate and distance is as the antenna feeder interference coefficient of any community and any adjacent cell.
For example, the adjacent cell of community 1 is community 2, community 3, in the time of the antenna feeder interference coefficient of calculation plot 1 and community 2, the switching rate of first calculation plot 1 and community 2, distance between calculation plot 1 and community 2 again, then product between switching rate and distance as community 1 the antenna feeder interference coefficient with community 2.In like manner, calculation plot 1 is similar with antenna feeder interference coefficient and the said process of community 3, describes in detail no longer one by one at this.
In the embodiment of the present invention, the mode of determining the switching rate switching to any adjacent cell any community has multiple, for example, has switched 5 times to community 2 community 1, switch 10 times to community 3, switched 15 times to community 4, switching rate=5/ (5+10+15)=0.17 that switch to community 2 community 1, switching rate=10/30=0.33 that switch to community 3 community 1, switching rate=15/30=0.5 that switch to community 4 community 1.
In order to improve the community determined and the antenna feeder interference coefficient of adjacent cell, in the embodiment of the present invention, in the time of the distance of determining between any community and any adjacent cell, can determine the equivalent distances between any community and any adjacent cell, now, product between switching rate and distance, as the antenna feeder interference coefficient of any community and any adjacent cell, is specially:
Product between switching rate and equivalent distances is as the antenna feeder interference coefficient of any community and any adjacent cell.
In the embodiment of the present invention, in the time of the equivalent distances of determining between any community and any adjacent cell, specifically can adopt following formula one to calculate:
D=d × (1+x × cos (β)-x × cos (α)) (formula one)
Wherein, D is the equivalent distances between community and adjacent cell; D is the distance between community and adjacent cell; X is equivalent coefficient; α is the straight line at the first party parallactic angle place of any community, and acute angle between any community and the line of any adjacent area; β is the straight line at the second party parallactic angle place of any adjacent area, and acute angle between any community and the line of any adjacent area, and α, β are as shown in Figure 1B.
In the invention process, the mode of judging the incidence relation of any community and any adjacent cell has multiple, preferably, if α+| (180-β) | do not reach air exercise predetermined threshold value, any community and any adjacent cell are air exercise adjacent area; Otherwise if alpha-beta does not reach predetermined threshold value in the same way, any community and any adjacent cell are adjacent area in the same way; Otherwise any community and any adjacent cell are non-to cracking down illegal activities adjacent area in the same way, wherein, preferably, air exercise predetermined threshold value is 90 °, and predetermined threshold value is 20 ° in the same way.
In the embodiment of the present invention, according to allocation strategy, the mode of determining default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers has multiple, preferably, and can be in the following way:
Determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers according to MOD3 mode.
For example, under the N1 of base station, there is A1, A2, A3San Ge community, according to MOD3 mode, first give the Physical Cell Identifier that A1 cell allocation MOD3 remainder is 0, give the Physical Cell Identifier that A2 cell allocation MOD3 remainder is 1, give the Physical Cell Identifier that A3 cell allocation MOD3 remainder is 2, now, the first that is combined as of the mark composition of the physical area of A1, A2, A3San Ge community combines, and the total antenna feeder that then calculates the base station N1 under the first combination disturbs I1; Then, give again the Physical Cell Identifier that A1 cell allocation MOD3 remainder is 1, give the Physical Cell Identifier that A2 cell allocation MOD3 remainder is 2, give the Physical Cell Identifier that A3 cell allocation MOD3 remainder is 0, now, the mark composition of the physical area of A1, A2, A3San Ge community be combined as the second combination, then, then calculate total antenna feeder interference I2 of the lower base station N1 of the second combination; In this manner to A1, A2, tri-cell allocation Physical Cell Identifier of A3, and calculate distribute each time Physical Cell Identifier after corresponding total antenna feeder disturb; If finally obtaining n total antenna feeder disturbs: I1, I2 ..., In, and to determine I2 be minimum value, the Physical Cell Identifier that A1 cell allocation MOD3 remainder is 1 will be given, give the Physical Cell Identifier that A2 cell allocation MOD3 remainder is 2, give the Physical Cell Identifier that A3 cell allocation MOD3 remainder is 0, as the allocation result of N1 community, base station being carried out to Physical Cell Identifier.
In order to understand better the embodiment of the present invention, below provide concrete application scenarios, for the process of distributing Physical Cell Identifier, make and describing in further detail, specifically as shown in Figure 2:
Core net covers 3 base stations, and each base station covers 3 communities.
Step 200: the antenna feeder that calculates respectively 9 communities disturbs;
Step 210: the antenna feeder of the community covering according to each base station disturbs the total antenna feeder that calculates respectively 3 base stations to disturb;
Step 220: the descending sort mode of disturbing according to 3 total antenna feeders, the distribution of Physical Cell Identifier is carried out in 9 communities that successively 3 base stations covered;
Step 230: whether the antenna feeder interference coefficient sum that judges 9 communities after distributing reaches predetermined threshold value; If so, complete the distribution of Physical Cell Identifier; Otherwise return to step 200.
As shown in Figure 3, the embodiment of the present invention provides a kind of Physical Cell Identifier distributor, and this device comprises: the first allocation units 30, determining unit 31, computing unit 32, the second allocation units 33, identifying unit 34, wherein,
The first allocation units 30, for all base stations for appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to priority;
Determining unit 31, for any base station, carries out respectively following operation for specifically: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
The second allocation units 33, for Physical Cell Identifier combination corresponding to minimum value of disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
Identifying unit 34, be used for when all base stations of appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of all communities that all base stations of judgement appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes; Otherwise, repeat above-mentioned steps.
Preferably, in the embodiment of the present invention, the first allocation units 30 specifically for:
The antenna feeder of determining each community that base station covers disturbs;
For any base station, the antenna feeder of each community that any base station is covered disturbs sum to disturb as total antenna feeder of any base station;
The descending sort mode that total antenna feeder of each base station is disturbed, as the priority of redistributing Physical Cell Identifier to the community of base station covering.
Preferably, in the embodiment of the present invention, when the antenna feeder of each community that the first definite base station of allocation units 30 covers disturbs, be specially:
For any community of any base station, carry out respectively following operation:
Determine the adjacent cell of any community;
The antenna feeder that calculates any adjacent cell in any community and adjacent cell disturbs;
To disturb sum to disturb as the antenna feeder of any community with the antenna feeder of each adjacent cell.
Preferably, in the embodiment of the present invention, when the first allocation units 30 calculate the antenna feeder interference of any adjacent cell in any community and adjacent cell, be specially:
For any adjacent cell of any community, carry out respectively following operation:
Calculate the antenna feeder interference coefficient of any community and any adjacent cell;
Judge the incidence relation of any community and any adjacent cell, wherein, incidence relation is any one in correlation between the accumulation rate and speed, air exercise relation, non-non-in the same way air exercise relation;
Weighted value corresponding to incidence relation of determining and judge, and the antenna feeder interference of product between antenna feeder interference coefficient and the weighted value any adjacent cell in any community and adjacent cell.
Preferably, in the embodiment of the present invention, when the first allocation units 30 calculate the antenna feeder interference coefficient of any community and any adjacent cell, be specially:
Determine the switching rate that switch to any adjacent cell any community;
Determine the distance between any community and any adjacent cell;
Product between switching rate and distance is as the antenna feeder interference coefficient of any community and any adjacent cell.
Preferably, in the embodiment of the present invention, the distance that the first allocation units 30 are determined between any community and any adjacent cell, is specially:
Determine the equivalent distances between any community and any adjacent cell;
Product between switching rate and distance, as the antenna feeder interference coefficient of any community and any adjacent cell, specifically comprises:
Product between switching rate and equivalent distances is as the antenna feeder interference coefficient of any community and any adjacent cell.
Preferably, in the embodiment of the present invention, when the first allocation units 30 are judged the incidence relation of any community and any adjacent cell, be specially:
If α+| (180-β) | do not reach air exercise predetermined threshold value, any community and any adjacent cell are air exercise adjacent area; Otherwise if alpha-beta does not reach predetermined threshold value in the same way, any community and any adjacent cell are adjacent area in the same way; Otherwise any community and any adjacent cell are non-to cracking down illegal activities adjacent area in the same way;
Wherein, α is the straight line at the first party parallactic angle place of any community, and acute angle between any community and the line of any adjacent area; β is the straight line at the second party parallactic angle place of any adjacent area, and acute angle between any community and the line of any adjacent area.
Preferably, in the embodiment of the present invention, determining unit 31 specifically for:
Determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers according to MOD3 mode.
In sum, in the embodiment of the present invention, a kind of method and device that distributes Physical Cell Identifier proposed, in this scheme, for all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determines the priority of redistributing Physical Cell Identifier to the community of base station covering, and redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to priority; Specifically for any base station, carry out respectively following operation: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers; The Physical Cell Identifier that priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs; Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered; When all base stations of appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of all communities that all base stations of judgement appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes; Otherwise, repeat above-mentioned steps, in this scheme, in the time distributing Physical Cell Identifier, to distribute in the situation based on avoiding the antenna feeder of community to disturb, therefore, method and device that the Physical Cell Identifier providing in the embodiment of the present invention distributes, avoided the antenna feeder causing in the time distributing Physical Cell Identifier to disturb.
The present invention is with reference to describing according to flow chart and/or the block diagram of the method for the embodiment of the present invention, device (system) and computer program.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing unit to produce a machine, the instruction of carrying out by the processor of computer or other programmable data processing unit is produced for realizing the device in the function of flow process of flow chart or multiple flow process and/or a square frame of block diagram or multiple square frames.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing unit with ad hoc fashion work, the instruction that makes to be stored in this computer-readable memory produces the manufacture that comprises command device, and this command device is realized the function in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing unit, make to carry out sequence of operations step to produce computer implemented processing on computer or other programmable devices, thereby the instruction of carrying out is provided for realizing the step of the function in flow process of flow chart or multiple flow process and/or square frame of block diagram or multiple square frame on computer or other programmable devices.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain the basic creative concept of cicada, can make other change and modification to these embodiment.So claims are intended to be interpreted as comprising preferred embodiment and fall into all changes and the modification of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the embodiment of the present invention the embodiment of the present invention.Like this, if within these of the embodiment of the present invention are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (16)
1. a Physical Cell Identifier distribution method, is characterized in that, comprising:
For all base stations of appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to described priority;
Specifically, for any base station, carry out respectively following operation:
According to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
The Physical Cell Identifier that priority based on corresponding has been distributed higher than all communities of all base stations of the priority of this base station, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs;
Physical Cell Identifier combination corresponding to minimum value in disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
When all base stations of described appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of judging all communities that all base stations of described appointed area comprise reaches predetermined threshold value, if so, finishing Physical Cell Identifier distributes; Otherwise, repeat above-mentioned steps.
2. the method for claim 1, is characterized in that, determines the priority of redistributing Physical Cell Identifier to the community of base station covering, specifically comprises:
The antenna feeder of determining each community that base station covers disturbs;
For any base station, the antenna feeder of each community that described any base station is covered disturbs sum to disturb as total antenna feeder of described any base station;
The descending sort mode that total antenna feeder of described each base station is disturbed, as the priority of redistributing Physical Cell Identifier to the community of base station covering.
3. method as claimed in claim 2, is characterized in that, determines that the antenna feeder of each community that base station covers disturbs, and specifically comprises:
For any community of any base station, carry out respectively following operation:
Determine the adjacent cell of described any community;
The antenna feeder that calculates any adjacent cell in described any community and described adjacent cell disturbs;
To disturb sum to disturb as the antenna feeder of described any community with the antenna feeder of each adjacent cell.
4. method as claimed in claim 3, is characterized in that, the antenna feeder that calculates any adjacent cell in described any community and described adjacent cell disturbs, and specifically comprises:
For described any adjacent cell of described any community, carry out respectively following operation:
Calculate the antenna feeder interference coefficient of described any community and described any adjacent cell;
Judge the incidence relation of described any community and described any adjacent cell, wherein, described incidence relation is any one in correlation between the accumulation rate and speed, air exercise relation, non-non-in the same way air exercise relation;
Weighted value corresponding to incidence relation of determining and judge, and the antenna feeder interference of product between described antenna feeder interference coefficient and the described weighted value any adjacent cell in described any community and described adjacent cell.
5. method as claimed in claim 4, is characterized in that, calculates the antenna feeder interference coefficient of described any community and described any adjacent cell, specifically comprises:
Determine the switching rate that switch to described any adjacent cell described any community;
Determine the distance between described any community and described any adjacent cell;
Product between described switching rate and described distance is as the antenna feeder interference coefficient of described any community and described any adjacent cell.
6. method as claimed in claim 5, is characterized in that, determines the distance between described any community and described any adjacent cell, specifically comprises:
Determine the equivalent distances between described any community and described any adjacent cell;
Product between described switching rate and described distance, as the antenna feeder interference coefficient of described any community and described any adjacent cell, specifically comprises:
Product between described switching rate and described equivalent distances is as the antenna feeder interference coefficient of described any community and described any adjacent cell.
7. the method as described in claim 4-6 any one, is characterized in that, judges the incidence relation of described any community and described any adjacent cell, specifically comprises:
If α+| (180-β) | do not reach air exercise predetermined threshold value, described any community and described any adjacent cell are air exercise adjacent area; Otherwise if alpha-beta does not reach predetermined threshold value in the same way, described any community and described any adjacent cell are adjacent area in the same way; Otherwise described any community and described any adjacent cell are non-to cracking down illegal activities adjacent area in the same way;
Wherein, described α is the straight line at the first party parallactic angle place of described any community, and acute angle between described any community and the line of described any adjacent area; Described β is the straight line at the second party parallactic angle place of described any adjacent area, and acute angle between described any community and the line of described any adjacent area.
8. the method for claim 1, is characterized in that, according to allocation strategy, determines default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers, specifically comprises:
Determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers according to MOD3 mode.
9. a Physical Cell Identifier distributor, is characterized in that, comprising:
The first allocation units, for all base stations for appointed area, the current Physical Cell Identifier in community covering based on each base station, determine the priority of redistributing Physical Cell Identifier to the community of base station covering, redistributing of Physical Cell Identifier carried out in all communities that successively each base station covered according to described priority;
Determining unit, for any base station, carries out respectively following operation for specifically: according to allocation strategy, determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers;
Computing unit, the Physical Cell Identifier having distributed higher than all communities of all base stations of the priority of this base station for the priority based on corresponding, calculates the total antenna feeder of this base station under each Physical Cell Identifier combination and disturbs;
The second allocation units, for Physical Cell Identifier combination corresponding to minimum value of disturbing according to total antenna feeder, the distribution of Physical Cell Identifier is carried out in all communities that this base station is covered;
Identifying unit, be used for when all base stations of described appointed area all execute after the distribution of Physical Cell Identifier, whether the antenna feeder interference coefficient sum of judging all communities that all base stations of described appointed area comprise reaches predetermined threshold value, if so, finishes Physical Cell Identifier and distributes; Otherwise, repeat above-mentioned steps.
10. device as claimed in claim 9, is characterized in that, described the first allocation units specifically for:
The antenna feeder of determining each community that base station covers disturbs;
For any base station, the antenna feeder of each community that described any base station is covered disturbs sum to disturb as total antenna feeder of described any base station;
The descending sort mode that total antenna feeder of described each base station is disturbed, as the priority of redistributing Physical Cell Identifier to the community of base station covering.
11. devices as claimed in claim 10, is characterized in that, described the first allocation units are determined when the antenna feeder of each community that base station covers disturbs, are specially:
For any community of any base station, carry out respectively following operation:
Determine the adjacent cell of described any community;
The antenna feeder that calculates any adjacent cell in described any community and described adjacent cell disturbs;
To disturb sum to disturb as the antenna feeder of described any community with the antenna feeder of each adjacent cell.
12. devices as claimed in claim 11, is characterized in that, when described the first allocation units calculate the antenna feeder interference of any adjacent cell in described any community and described adjacent cell, are specially:
For described any adjacent cell of described any community, carry out respectively following operation:
Calculate the antenna feeder interference coefficient of described any community and described any adjacent cell;
Judge the incidence relation of described any community and described any adjacent cell, wherein, described incidence relation is any one in correlation between the accumulation rate and speed, air exercise relation, non-non-in the same way air exercise relation;
Weighted value corresponding to incidence relation of determining and judge, and the antenna feeder interference of product between described antenna feeder interference coefficient and the described weighted value any adjacent cell in described any community and described adjacent cell.
13. devices as claimed in claim 12, is characterized in that, when described the first allocation units calculate the antenna feeder interference coefficient of described any community and described any adjacent cell, are specially:
Determine the switching rate that switch to described any adjacent cell described any community;
Determine the distance between described any community and described any adjacent cell;
Product between described switching rate and described distance is as the antenna feeder interference coefficient of described any community and described any adjacent cell.
14. devices as claimed in claim 13, is characterized in that, described the first allocation units are determined the distance between described any community and described any adjacent cell, are specially:
Determine the equivalent distances between described any community and described any adjacent cell;
Product between described switching rate and described distance, as the antenna feeder interference coefficient of described any community and described any adjacent cell, specifically comprises:
Product between described switching rate and described equivalent distances is as the antenna feeder interference coefficient of described any community and described any adjacent cell.
15. devices as described in claim 12-14 any one, is characterized in that, when described the first allocation units are judged the incidence relation of described any community and described any adjacent cell, are specially:
If α+| (180-β) | do not reach air exercise predetermined threshold value, described any community and described any adjacent cell are air exercise adjacent area; Otherwise if alpha-beta does not reach predetermined threshold value in the same way, described any community and described any adjacent cell are adjacent area in the same way; Otherwise described any community and described any adjacent cell are non-to cracking down illegal activities adjacent area in the same way;
Wherein, described α is the straight line at the first party parallactic angle place of described any community, and acute angle between described any community and the line of described any adjacent area; Described β is the straight line at the second party parallactic angle place of described any adjacent area, and acute angle between described any community and the line of described any adjacent area.
16. devices as claimed in claim 9, is characterized in that, described determining unit specifically for:
Determine default at least one Physical Cell Identifier combination of distributing to all communities that this base station covers according to MOD3 mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020173.XA CN103781076B (en) | 2014-01-16 | 2014-01-16 | Physical cell identify distribution method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410020173.XA CN103781076B (en) | 2014-01-16 | 2014-01-16 | Physical cell identify distribution method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103781076A true CN103781076A (en) | 2014-05-07 |
| CN103781076B CN103781076B (en) | 2017-04-12 |
Family
ID=50572794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410020173.XA Active CN103781076B (en) | 2014-01-16 | 2014-01-16 | Physical cell identify distribution method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103781076B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301908A (en) * | 2014-11-14 | 2015-01-21 | 河北电信设计咨询有限公司 | Method for allocating physical cell identifiers |
| CN104780560A (en) * | 2015-04-15 | 2015-07-15 | 广东怡创科技股份有限公司 | Cell PCI interference detection method and system |
| CN105142172A (en) * | 2015-08-10 | 2015-12-09 | 上海大唐移动通信设备有限公司 | Method and device for distributing physical cell identifications |
| CN106817186A (en) * | 2015-11-30 | 2017-06-09 | 中国移动通信集团广东有限公司 | A kind of Physical Cell Identifier PCI disturbs the method and device of self-optimizing |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
| CN102256256A (en) * | 2010-05-21 | 2011-11-23 | 中国移动通信集团浙江有限公司 | Method and device for planning frequency and scrambling codes |
| WO2013120725A1 (en) * | 2012-02-16 | 2013-08-22 | Nokia Siemens Networks Oy | Environmental aware pci management |
| CN103297953A (en) * | 2012-02-24 | 2013-09-11 | 华为技术有限公司 | Method for configuring physical cellular identify configuration and logical root sequence index and base station equipment |
| CN103327505A (en) * | 2012-03-19 | 2013-09-25 | 中国移动通信集团设计院有限公司 | Method and device for determining physical cellular identification |
-
2014
- 2014-01-16 CN CN201410020173.XA patent/CN103781076B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
| CN102256256A (en) * | 2010-05-21 | 2011-11-23 | 中国移动通信集团浙江有限公司 | Method and device for planning frequency and scrambling codes |
| WO2013120725A1 (en) * | 2012-02-16 | 2013-08-22 | Nokia Siemens Networks Oy | Environmental aware pci management |
| CN103297953A (en) * | 2012-02-24 | 2013-09-11 | 华为技术有限公司 | Method for configuring physical cellular identify configuration and logical root sequence index and base station equipment |
| CN103327505A (en) * | 2012-03-19 | 2013-09-25 | 中国移动通信集团设计院有限公司 | Method and device for determining physical cellular identification |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301908A (en) * | 2014-11-14 | 2015-01-21 | 河北电信设计咨询有限公司 | Method for allocating physical cell identifiers |
| 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 |
| CN104780560A (en) * | 2015-04-15 | 2015-07-15 | 广东怡创科技股份有限公司 | Cell PCI interference detection method and system |
| 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 |
| CN105142172A (en) * | 2015-08-10 | 2015-12-09 | 上海大唐移动通信设备有限公司 | Method and device for distributing physical cell identifications |
| 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 |
| CN106817186A (en) * | 2015-11-30 | 2017-06-09 | 中国移动通信集团广东有限公司 | A kind of Physical Cell Identifier PCI disturbs the method and device of self-optimizing |
| CN106817186B (en) * | 2015-11-30 | 2019-05-10 | 中国移动通信集团广东有限公司 | A kind of method and device of Physical Cell Identifier PCI interference self-optimizing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103781076B (en) | 2017-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103747445A (en) | Method and device for distributing physical cell identity | |
| CN101778395A (en) | Method and device for planning physical cell identities | |
| CN102595417A (en) | Planning method and system for community resources | |
| CN103781076A (en) | Physical cell identify distribution method and device | |
| CN103220724A (en) | Cellular and dimension to dimension (D2D) user frequency spectrum accessing method in D2D communication mixing system | |
| TW200738019A (en) | System and method for allocating sub-channels in a network | |
| CN104168656B (en) | A kind of detection reference signal SRS resource distribution method and device | |
| CN102075947A (en) | Cell identification (ID) planning method and device for improving physical downlink control channel PDCCH performance | |
| CN103068046A (en) | Uplink control information resource distribution method, apparatus and base station thereof | |
| CN102026205A (en) | Method and device for planning physical cell ID (Identification) | |
| CN104640219A (en) | Interference coordinated sub-frame configuration method and device | |
| CN103716845A (en) | PCI distribution method and device | |
| CN103079207B (en) | The collocation method of Physical Cell Identifier PCI and equipment | |
| CN101001437B (en) | Method for distributing CTS of common base station | |
| CN102026169B (en) | Method and equipment for distributing physical cell ID | |
| CN102387554B (en) | Method for allocating inter-cell interference coordination (ICIC) resource | |
| CN103428702A (en) | Resource allocation method for controlling inter-cell interference | |
| CN101815300A (en) | Cell frequency assignment method and device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system | |
| CN103561408A (en) | Channel distribution method and device, data transmission method and access points | |
| CN102427592A (en) | Centralized link scheduling method for multi-channel wireless network | |
| CN104427564B (en) | A kind of main synchronous method of fast downlink for the switching of TD LTE cells | |
| CN108234683B (en) | PCI (peripheral component interconnect) adjusting method and device under pilot frequency networking | |
| CN107241735B (en) | Physical cell mark distribution method and device | |
| CN108923903B (en) | Pilot frequency distribution method and system for multi-antenna system and electronic equipment | |
| CN101198145A (en) | Special intermediate code of user's set distribution method in time division duplex system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |