CN102026169A - Method and equipment for distributing physical cell ID - Google Patents
Method and equipment for distributing physical cell ID Download PDFInfo
- Publication number
- CN102026169A CN102026169A CN2010106123717A CN201010612371A CN102026169A CN 102026169 A CN102026169 A CN 102026169A CN 2010106123717 A CN2010106123717 A CN 2010106123717A CN 201010612371 A CN201010612371 A CN 201010612371A CN 102026169 A CN102026169 A CN 102026169A
- Authority
- CN
- China
- Prior art keywords
- district
- sub
- index sequence
- adjacent area
- priority
- 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
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000009826 distribution Methods 0.000 claims abstract description 67
- 230000004069 differentiation Effects 0.000 claims description 18
- 230000001174 ascending effect Effects 0.000 claims description 7
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000004891 communication Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000004590 computer program Methods 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000006855 networking Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 241000931705 Cicada Species 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 208000015979 hopping Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and equipment for distributing physical cell ID. The invention is used for solving the problem in the prior art that the physical cell ID is suitable for being distributed in the small networks and is hard to be distributed in the large long term evolution (LTE) networks. The method provided by the embodiment of the invention comprises the following steps: determining a first index serial number and a second index serial number corresponding to a cell to which the physical cell ID is needed to be distributed; and determining the physical cell ID of the cell according to the determined first index serial number and second index serial number. By utilizing the embodiment of the invention, the physical cell ID can be automatically distributed, thus the physical cell ID can be distributed in the large LTE network, the distribution efficiency is improved, and the manual workload is reduced.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of method and apparatus that distributes Physical Cell Identifier.
Background technology
Because TD-LTE (Time Division Long Term Evolution; Synchronous Long Term Evolution of time-division) in the system, physical district ID (sign) is bound one by one with mechanism such as resource mapping, sign indicating number resource distribution and frequency hoppings, so the same TD-SCDMA of the configuration of physical district ID (Time Division Synchronized CodeDivision Multiple Access; TD SDMA) the scrambling code planning effect in the system is suitable, seems particularly important in identical networking.
Physical district ID is major decision information, particularly broadcast channel and the control channel that the scrambler initial value generates in the physical channel, and the correlation of physical district ID has determined the correlation of control channel scrambler, plays a part crucial to the interference of channel.
Because physical district ID and PSC (Primary Synchronization Code, Primary Synchronisation Code)/SSC (Secondary Synchronization Code, secondary synchronization code) sequence index is number one by one corresponding, produce interference for fear of neighbor cell, need reasonably plan 504 physical layer sub-district ID.
Also there is not large-scale LTE network at present, the scale of try net is all smaller, so manual mode is all adopted in the planning of physical district ID, promptly adopt artificial mode from 504 candidate ID, to pick out the ID that satisfies distribution principle, manual configuration is in cell parameter.If network size enlarges, relate in particular to the multiplexing situation of ID, tend to produce very big workload by manual type, and be difficult to take into account the situation of whole network.
In sum, distribute physical district ID to be applicable to the network that scale is smaller at present, be difficult in large-scale LTE network allocation physical district ID.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus that distributes Physical Cell Identifier, is applicable to the network that scale is smaller in order to solve the distribution physical district ID that exists in the prior art, is difficult in the problem of large-scale LTE network allocation physical district ID.
A kind of method of distributing Physical Cell Identifier that the embodiment of the invention provides comprises:
Determine to need distribute first index sequence number of sub-district correspondence of Physical Cell Identifier and second index sequence number;
According to first index sequence of determining number and second index sequence number, determine the Physical Cell Identifier of this sub-district.
Described first index sequence number is a Primary Synchronisation Code PSC sequence index number, and second index sequence number is a secondary synchronization code SSC sequence index number.
Determine first index sequence number of sub-district correspondence according to the following step:
At a base station, be each cell allocation first index sequence under the base station number at random; Or
At a base station, be each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
Determine second index sequence number of sub-district correspondence according to the following step:
Distribute the sub-district of Physical Cell Identifier at needs, each second index sequence number is traveled through, determine each second index sequence number all satisfied distribution principles;
According to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence;
Greater than second index sequence of threshold value number, select one second index sequence number from the mark sum of correspondence as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
Described distribution principle comprises one or more in the following principle:
Unequal with the CELL_ID of each adjacent area;
Unequal with CELL_ID mod 6 values of each adjacent area;
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 is unequal;
Unequal with CELL_ID mod (2 * descending RB number) value of each adjacent area.
Describedly determine that first index sequence number and second index sequence number also comprise before:
Determine the priority of each sub-district according to cell density;
According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
The priority of described definite each sub-district comprises:
The quantity of adjacent area is not less than all little differentiations of first threshold value in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
The priority of described definite each sub-district comprises:
At a set, according to distance near to order far away, sorted in the adjacent area of each sub-district;
Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer;
According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
A kind of equipment that distributes Physical Cell Identifier that the embodiment of the invention provides comprises:
Distribution module is used for determining first index sequence number of sub-district correspondence of needs distribution Physical Cell Identifier and second index sequence number;
The sign determination module is used for determining the Physical Cell Identifier of this sub-district according to first index sequence of determining number and second index sequence number.
Described distribution module specifically is used for:
At a base station, be each cell allocation first index sequence under the base station number at random; Or
At a base station, be each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
Described distribution module specifically is used for:
Distribute the sub-district of Physical Cell Identifier at needs, each second index sequence number is traveled through, determine each second index sequence number all satisfied distribution principles; According to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence; Greater than second index sequence of threshold value number, select one second index sequence number from the mark sum of correspondence as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
Described distribution principle comprises one or more in the following principle:
Unequal with the CELL_ID of each adjacent area;
Unequal with CELL_ID mod 6 values of each adjacent area;
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 is unequal;
Unequal with CELL_ID mod (2 * descending RB number) value of each adjacent area.
Described distribution module also is used for:
Determine the priority of each sub-district according to cell density; According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
Described distribution module specifically is used for:
With all little differentiations of not little first threshold value of quantity of adjacent area in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
Described distribution module specifically is used for:
At a set, according to distance near to order far away, sorted in the adjacent area of each sub-district; Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer; According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
Because the embodiment of the invention can be distributed physical district ID automatically, thereby can improve allocative efficiency, reduce labor workload at large-scale LTE network allocation physical district ID.
Description of drawings
Fig. 1 distributes the method flow schematic diagram of Physical Cell Identifier for the embodiment of the invention;
Fig. 2 distributes the method flow schematic diagram of PSC and SSC call number for the embodiment of the invention;
Fig. 3 distributes the device structure schematic diagram of Physical Cell Identifier for the embodiment of the invention.
Embodiment
The embodiment of the invention is distributed first index sequence number of sub-district correspondence of Physical Cell Identifier and second index sequence number as required, determines the Physical Cell Identifier of this sub-district.Because the embodiment of the invention can be distributed physical district ID automatically, thereby can improve allocative efficiency, reduce labor workload at large-scale LTE network allocation physical district ID.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
As shown in Figure 1, the embodiment of the invention distributes the method for Physical Cell Identifier to comprise the following steps:
Wherein, first index sequence of the embodiment of the invention number can be a PSC sequence index number, and second index sequence number can be a SSC sequence index number.
In the step 101, can determine first index sequence number of sub-district correspondence according to following manner:
At a base station, be each cell allocation first index sequence under the base station number at random; Or
At a base station, be each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
Owing at least one sub-district is all arranged under each base station, at each base station, can be with each cell allocation first index sequence number that is under each base station.
Because all there is cell number the sub-district under each base station, and first index sequence number has the branch of size, can be each cell allocation first index sequence under the base station according to the size of first index sequence number.
With first index sequence number is PSC index sequence number, and first index sequence number ascending order is that example describes.
PSC has 3 master sync signals, and call number is 0,1,2, will reduce the interference between the neighbor cell during networking, and neighbor cell need adopt different main synchronizing sequences.In the existing network, not only 2 far away of adjacent areas of a sub-district, and that network topology also may not be for standard is cellular are so can't avoid interference by the distribution of PSC sequence index number.Can only adopt principle that the interference between PSC is reduced as far as possible according to a plurality of minizones cycle assignment PSC call number under the same base station.
If under certain base station 3 sub-districts are arranged, cell number is 1,2,3, then distributes respectively according to 0,1,2 order, and promptly sub-district 1 is 0, and sub-district 2 is 1, and sub-district 3 is 2; If the sub-district number of base station is not 3 of a standard, then still distribute according to the order of 0,1,2 circulations under the same base station.
Need to prove that the embodiment of the invention is not limited to above-mentioned two kinds of methods of salary distribution, other can be suitable for the embodiment of the invention equally for the mode of cell allocation first index sequence number.
In the step 101, can determine second index sequence number of sub-district correspondence according to following manner:
S1, distribute the sub-district of Physical Cell Identifier, each second index sequence number is traveled through, determine each second index sequence number all satisfied distribution principles at needs;
S2, according to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence;
S3, from the mark sum of correspondence greater than second index sequence of threshold value number, select one second index sequence number as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
The threshold value here can be set as required.
Distribution principle includes but not limited to one or more in the following principle:
Unequal with the CELL_ID of each adjacent area; Sub-district A and sub-district B adjacent area each other for example, if the ID of sub-district A is set to 1, then the ID of sub-district B can not be made as 1.
With CELL_ID mod 6 values of each adjacent area unequal (CELL_ID mod 6 is that CELL_ID gets remainder to 6, and coexisting down, this repeats no more); Sub-district A and sub-district B adjacent area each other for example, if the ID of sub-district A is set to 1, then the ID of sub-district B can not be made as 6 * n+1, wherein n is the integer between 0～83.
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 all unequal (promptly when number identical with first index sequence of adjacent area, the m in the m sequence of second index sequence of this sub-district number
0M in the m sequence of mod 8 value and second index sequence that should the neighbour sub-district number
0Mod 8 value is inequality, and the m in the m sequence of second index sequence of this sub-district number
1M in the m sequence of mod 8 value and second index sequence that should the neighbour sub-district number
1Mod 8 values are inequality; That is to say that the m0mod8 of these two adjacent each other sub-districts is unequal, and m1mod8 is unequal); Suppose sub-district A and sub-district B adjacent area each other, if the ID of sub-district A is set to 1 (first index sequence that is its correspondence number is 1, and m0 is 0, and m1 is 1), then the ID of sub-district B can not be made as 25 (first index sequence that is its correspondence number is 1, and m0 is 8, and m1 is 9); M wherein
0And m
1It is cyclic shift value.
Unequal with CELL_ID mod (2 * descending RB (Resource Block, the Resource Block) number) value of each adjacent area.Sub-district A and sub-district B adjacent area each other for example, descending RB number is 100, if the ID of sub-district A is set to 1, then the ID of sub-district B can not be made as 200 * n+1, wherein n is the integer between 0～2.
Specifically can be referring to table 1:
Table 1
Among the step S1, determine each second index sequence number satisfies which distribution principle in the table 1.
The all corresponding mark of each distribution principle specifically can be determined mark according to the order of severity of distribution principle, is high such as the order of severity, and then mark can be 10 minutes; During the order of severity was, then mark can be 1 minute.
The corresponding relation of distribution principle and mark can upgrade according to the variation of distribution principle.
Among the step S2, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, then to the same second index sequence correspondence with the mark addition.
Among the step S3, the mark sum and the threshold value of each second index sequence correspondence compared, pick out, and from second index sequence picked out number, select one second index sequence number greater than second index sequence of threshold value number.Preferable second index sequence that can select corresponding mark sum maximum number.
With second index sequence number is that the SSC index sequence number is that example describes.
Travel through 168 SSC index sequence number, calculate the score of each index sequence number, if number appearing at, certain index sequence meets in number set of the pairing available index of the distribution principle that to observe, count 10 minutes, appear at and meet in the set of the pairing SSC call number of the distribution principle of as far as possible observing, count 1 minute.All calculate the score of 168 SSC index sequence number, the SSC index sequence number of getting best result is as the SSC sequence index of distributing number, and is a plurality of if the SSC sequence index of best result number has, and then selects one at random.
In force, can judge just whether distribution is successful according to score: the scrambler of Fen Peiing means that promptly it meets 3 the sign indicating number planning distribution principles that must observe at least if score surpasses 30 fens at last, and this distribution is successful; If be lower than 30 fens, then mean its at least satisfied 1 distribution principle that must observe, then according to the height of priority, satisfy the high distributive condition of priority as far as possible.
Suppose sub-district A and sub-district B adjacent area each other, descending RB number is 100, if the ID of sub-district A is set to 1, then the ID of sub-district B gets 0～503 score respectively and sees Table 2.Can choose the highest ID of score value be provided with to sub-district B this moment, and peak has a plurality ofly chooses any one.In actual conditions, get over for a long time when the adjacent area of sub-district B, the ID of high score will be few more, and just the choice will be more little.
Table 2
In the step 102, can determine Physical Cell Identifier according to formula one:
Wherein,
It is Physical Cell Identifier;
It is second index sequence number;
It is first index sequence number.
Because the planning of physical district ID is the complete problem of a NP (Non-deterministicPolynomial, indecisive multinomial) on mathematics, obtaining of optimal solution need a large amount of searching computing time.Usually adopt didactic optimized Algorithm or more simple searching algorithm in practice.At this moment physical district ID planning order is just to obtaining optimal solution or near the probability of optimal solution certain influence being arranged.Be reflected in the middle of the reality, the higher area of cell density has higher planning difficulty, and usually is the main cause of planning failure, at this moment should make the sub-district in high density area have higher priority, pays the utmost attention to when planning.
Preferable, can further include before the step 101:
Determine the priority of each sub-district according to cell density;
According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
Concrete, with all little differentiations of not little first threshold value of quantity of adjacent area in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
Here first threshold value and second threshold value can be set as required.
Preferable, after the priority of having determined set, can also determine the priority of each sub-district in each set respectively.
Concrete, at a set, according to distance near to order far away, sorted in the adjacent area of each sub-district; Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer; According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
Be that 12, the second threshold values are 6 with first threshold value below, N 6 describes for example.
1, the distance according to sub-district and adjacent area sorts to the adjacent area respectively from small to large.
2, the adjacent area number of correspondence being not less than 12 sub-district rule is a class, the planning priority of this class sub-district is the highest, at each this class sub-district, plan sequence valve by preceding 6 adjacent areas to generating of sub-district apart from sum, the planning priority that is worth more little respective cell is high more.
3, with the adjacent area number of correspondence less than 12 and to be not less than 6 sub-district rule be a class, the planning priority of this class sub-district is the highest, at each this class sub-district, plan sequence valve by preceding 6 adjacent areas to generating of sub-district apart from sum, the planning priority that is worth more little respective cell is high more.
4, the adjacent area number of correspondence being advised less than 6 sub-district is a class, and the planning priority of this class sub-district is the highest, at each this class sub-district, plans sequence valve by preceding 6 adjacent areas to generating apart from sum of sub-district, and the planning priority that is worth more little respective cell is high more.
Certainly, the priority of each sub-district also can be determined priority or determine priority at random according to predefined order in part or all of the set.
Need to prove that except the mode of definite priority of introducing above, the embodiment of the invention can also be heightened the distribution principle priority of a certain sub-district by artificial setting, and the order of Physical Cell Identifier can directly be set by hand.
As shown in Figure 2, the embodiment of the invention distributes the method for PSC and SSC call number to comprise the following steps:
Wherein, before carry out step 201, physical district ID planning needs to use sub-district distributed data and Neighboring Cell List data automatically.Therefore before physical district ID planning, need possess following condition:
1, carries out field intensity prediction earlier, generate the view of cells layer;
2, carry out adjacent section planning, configure the Neighboring Cell List of each sub-district.
Concrete, in the step 201, read in the adjacent area of all sub-districts;
Whether each other to check between this sub-district and the adjacent sub-district adjacent area,, then directly revise neighboring BS relationship, make it to become neighboring BS relationship each other if not neighboring BS relationship each other.If in the adjacent sub-district of A B is arranged, and do not have A in the adjacent sub-district of B, A and B then are not adjacent each other cell relations so.
Wherein, step 204 and step 205 do not have inevitable sequential relationship, both can first execution in step 204, in execution in step 205; Also can first execution in step 205, in execution in step 204; Can also while execution in step 204 and step 205.
Based on same inventive concept, a kind of equipment that distributes Physical Cell Identifier also is provided in the embodiment of the invention, because the principle that this equipment is dealt with problems is similar to the method for distributing Physical Cell Identifier, so the enforcement of this equipment can repeat part and repeat no more referring to the enforcement of method.
As shown in Figure 3, the embodiment of the invention distributes the equipment of Physical Cell Identifier to comprise: distribution module 10 and sign determination module 20.
Sign determination module 20 is used for determining the Physical Cell Identifier of this sub-district according to first index sequence of determining number and second index sequence number.
At a base station, distribution module 10 is each cell allocation first index sequence under the base station number at random; Or
At a base station, distribution module 10 is each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
Wherein, distribute the sub-district of Physical Cell Identifier at needs, distribution module 10 number travels through each second index sequence, determines each second index sequence number all satisfied distribution principles; According to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence; Greater than second index sequence of threshold value number, select one second index sequence number from the mark sum of correspondence as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
Distribution principle includes but not limited to one or more in the following principle:
Unequal with the CELL_ID of each adjacent area;
Unequal with CELL_ID mod 6 values of each adjacent area;
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 is unequal;
Unequal with CELL_ID mod (2 * descending RB number) value of each adjacent area.
In force, sign determination module 20 can be determined Physical Cell Identifier according to formula one.
Preferable, distribution module 10 can also be determined the priority of each sub-district according to cell density; According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
Concrete, distribution module 10 with all little differentiations of not little first threshold value of quantity of adjacent area in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
At a set, distribution module 10 according to distance near to order far away, sorted in the adjacent area of each sub-district; Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer; According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the 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 device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Because the embodiment of the invention can be distributed physical district ID automatically, thereby can improve allocative efficiency, reduce labor workload at large-scale LTE network allocation physical district ID.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1. a method of distributing Physical Cell Identifier is characterized in that, this method comprises:
Determine to need distribute first index sequence number of sub-district correspondence of Physical Cell Identifier and second index sequence number;
According to first index sequence of determining number and second index sequence number, determine the Physical Cell Identifier of this sub-district.
2. the method for claim 1 is characterized in that, described first index sequence number is a Primary Synchronisation Code PSC sequence index number, and second index sequence number is a secondary synchronization code SSC sequence index number.
3. the method for claim 1 is characterized in that, determines first index sequence number of sub-district correspondence according to the following step:
At a base station, be each cell allocation first index sequence under the base station number at random; Or
At a base station, be each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
4. as the arbitrary described method of claim 1～3, it is characterized in that, determine second index sequence number of sub-district correspondence according to the following step:
Distribute the sub-district of Physical Cell Identifier at needs, each second index sequence number is traveled through, determine each second index sequence number all satisfied distribution principles;
According to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence;
Greater than second index sequence of threshold value number, select one second index sequence number from the mark sum of correspondence as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
5. method as claimed in claim 4 is characterized in that, described distribution principle comprises one or more in the following principle:
Unequal with the CELL_ID of each adjacent area;
Unequal with CELL_ID mod 6 values of each adjacent area;
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 is unequal;
Unequal with CELL_ID mod (2 * downlink resource piece RB number) value of each adjacent area.
6. the method for claim 1 is characterized in that, describedly determines that first index sequence number and second index sequence number also comprise before:
Determine the priority of each sub-district according to cell density;
According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
7. method as claimed in claim 6 is characterized in that, the priority of described definite each sub-district comprises:
The quantity of adjacent area is not less than all little differentiations of first threshold value in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
8. method as claimed in claim 7 is characterized in that, the priority of described definite each sub-district comprises:
At a set, according to distance near to order far away, sorted in the adjacent area of each sub-district;
Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer;
According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
9. an equipment that distributes Physical Cell Identifier is characterized in that, this equipment comprises:
Distribution module is used for determining first index sequence number of sub-district correspondence of needs distribution Physical Cell Identifier and second index sequence number;
The sign determination module is used for determining the Physical Cell Identifier of this sub-district according to first index sequence of determining number and second index sequence number.
10. equipment as claimed in claim 9 is characterized in that, described distribution module specifically is used for:
At a base station, be each cell allocation first index sequence under the base station number at random; Or
At a base station, be each cell allocation first index sequence number under the base station according to first index sequence number descending or ascending order.
11., it is characterized in that described distribution module specifically is used for as claim 9 or 10 described equipment:
Distribute the sub-district of Physical Cell Identifier at needs, each second index sequence number is traveled through, determine each second index sequence number all satisfied distribution principles; According to the corresponding relation of distribution principle and mark, determine the mark of each distribution principle correspondence that each second index sequence is number satisfied, and determine all mark sums of each second index sequence correspondence; Greater than second index sequence of threshold value number, select one second index sequence number from the mark sum of correspondence as second index sequence of the sub-district correspondence that needs to distribute Physical Cell Identifier number.
12. equipment as claimed in claim 11 is characterized in that, described distribution principle comprises one or more in the following principle:
Unequal with the CELL_ID of each adjacent area;
Unequal with CELL_ID mod 6 values of each adjacent area;
M in the m sequence of second index sequence of the adjacent area number identical number with first index sequence
0Mod 8 value and m
1Mod 8 is unequal;
Unequal with CELL_ID mod (2 * descending RB number) value of each adjacent area.
13. equipment as claimed in claim 9 is characterized in that, described distribution module also is used for:
Determine the priority of each sub-district according to cell density; According to priority order from high to low, determine to need to distribute the sub-district of Physical Cell Identifier.
14. equipment as claimed in claim 13 is characterized in that, described distribution module specifically is used for:
With all little differentiations of not little first threshold value of quantity of adjacent area in first set, with the quantity of adjacent area less than first threshold value and all little differentiations of being not less than second threshold value in second set, with the quantity of adjacent area less than all little differentiations of second threshold value in the 3rd set;
Wherein, first threshold value is greater than second threshold value, and the priority of each sub-district is the highest in first set, and the priority of each sub-district is taken second place in second set, and the priority of each sub-district is minimum in the 3rd set.
15. equipment as claimed in claim 14 is characterized in that, described distribution module specifically is used for:
At a set, according to distance near to order far away, sorted in the adjacent area of each sub-district; Determine each sub-district and top n adjacent area apart from sum, wherein N is a positive integer; According to the big more order of the more little priority of distance sum, determine the priority of each sub-district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010612371.7A CN102026169B (en) | 2010-12-29 | 2010-12-29 | Method and equipment for distributing physical cell ID |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010612371.7A CN102026169B (en) | 2010-12-29 | 2010-12-29 | Method and equipment for distributing physical cell ID |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102026169A true CN102026169A (en) | 2011-04-20 |
| CN102026169B CN102026169B (en) | 2013-05-15 |
Family
ID=43866889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010612371.7A Active CN102026169B (en) | 2010-12-29 | 2010-12-29 | Method and equipment for distributing physical cell ID |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102026169B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103747445A (en) * | 2014-01-27 | 2014-04-23 | 上海大唐移动通信设备有限公司 | Method and device for distributing physical cell identity |
| CN104065600A (en) * | 2014-06-05 | 2014-09-24 | 京信通信***（中国）有限公司 | Method and device for restraining interference between control channels |
| CN104956705A (en) * | 2012-12-04 | 2015-09-30 | 诺基亚通信公司 | Algorithm for physical cell identifier allocation |
| CN106612502A (en) * | 2015-10-22 | 2017-05-03 | 普天信息技术有限公司 | Physical cell identifier PCI acquiring method and system |
| CN107241735A (en) * | 2016-03-29 | 2017-10-10 | 大唐移动通信设备有限公司 | The distribution method and device of a kind of physical area sign |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755388A (en) * | 2007-05-21 | 2010-06-23 | 高通股份有限公司 | Assignment of primary and secondary synchronization code sequences to cells in a wireless communication system |
| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
-
2010
- 2010-12-29 CN CN201010612371.7A patent/CN102026169B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755388A (en) * | 2007-05-21 | 2010-06-23 | 高通股份有限公司 | Assignment of primary and secondary synchronization code sequences to cells in a wireless communication system |
| CN101778395A (en) * | 2010-01-08 | 2010-07-14 | 华为技术有限公司 | Method and device for planning physical cell identities |
Non-Patent Citations (1)
| Title |
|---|
| 3GPP: "Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (Release 8)", 《3GPP TS 36.211 V8.7.0》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104956705A (en) * | 2012-12-04 | 2015-09-30 | 诺基亚通信公司 | Algorithm for physical cell identifier allocation |
| CN104956705B (en) * | 2012-12-04 | 2018-09-07 | 诺基亚通信公司 | Algorithm for physical cell identifier distribution |
| CN103747445A (en) * | 2014-01-27 | 2014-04-23 | 上海大唐移动通信设备有限公司 | Method and device for distributing physical cell identity |
| CN104065600A (en) * | 2014-06-05 | 2014-09-24 | 京信通信***（中国）有限公司 | Method and device for restraining interference between control channels |
| CN104065600B (en) * | 2014-06-05 | 2017-12-26 | 京信通信***（中国）有限公司 | A kind of method and device for suppressing control channel interference |
| CN106612502A (en) * | 2015-10-22 | 2017-05-03 | 普天信息技术有限公司 | Physical cell identifier PCI acquiring method and system |
| CN106612502B (en) * | 2015-10-22 | 2019-11-12 | 普天信息技术有限公司 | A kind of acquisition methods and system of Physical Cell Identifier PCI |
| CN107241735A (en) * | 2016-03-29 | 2017-10-10 | 大唐移动通信设备有限公司 | The distribution method and device of a kind of physical area sign |
| CN107241735B (en) * | 2016-03-29 | 2020-04-14 | 大唐移动通信设备有限公司 | Physical cell mark distribution method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102026169B (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102595417A (en) | Planning method and system for community resources | |
| CN109391426A (en) | Instruction, method of reseptance and the device of resource location | |
| CN102118833A (en) | Cell accessing indication method, cell selection method and device | |
| CN102083153A (en) | Method and device for replacement of main cell | |
| CN102413499B (en) | Simulation method for inter-cell interference coordination, and device therefor | |
| CN102026169A (en) | Method and equipment for distributing physical cell ID | |
| CN105072700A (en) | Random access method, random access device, random access control method and random access control device | |
| CN101964982A (en) | Cognitive radio frequency spectrum sharing method and system | |
| CN102170657B (en) | Method and equipment for determining subframe information | |
| CN104780547A (en) | Method and device for determining working frequency points of cells | |
| CN103068046A (en) | Uplink control information resource distribution method, apparatus and base station thereof | |
| CN102612133A (en) | Method, system and equipment for configuring and synchronizing expanded carriers | |
| CN101765210A (en) | Method, device and base station for utilizing cell edge frequency band resources | |
| CN103716845A (en) | PCI distribution method and device | |
| CN102026168B (en) | Method and equipment for distributing physical cell ID | |
| CN108347769A (en) | The indicating means and device of frequency domain position | |
| CN103607719A (en) | Cell PCI setting method in LTE network and system thereof | |
| CN102026205A (en) | Method and device for planning physical cell ID (Identification) | |
| CN105491675B (en) | Accidental access method and device under asymmetric up-link carrier polymerization | |
| CN102387497A (en) | Base station and allocation method of radio network temporary identities | |
| CN101815300B (en) | Cell frequency assignment method and device in TD-SCDMA (Time Division-Synchronization Code Division Multiple Access) system | |
| CN104065600B (en) | A kind of method and device for suppressing control channel interference | |
| CN102387554B (en) | Method for allocating inter-cell interference coordination (ICIC) resource | |
| CN103634800A (en) | Public information demodulation based mobile communication common-frequency reuse method | |
| CN105764150A (en) | Method and device for allocating resources |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |