CN101692732A - Method and device for distributing scrambling codes - Google Patents
Method and device for distributing scrambling codes Download PDFInfo
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- CN101692732A CN101692732A CN200910207242A CN200910207242A CN101692732A CN 101692732 A CN101692732 A CN 101692732A CN 200910207242 A CN200910207242 A CN 200910207242A CN 200910207242 A CN200910207242 A CN 200910207242A CN 101692732 A CN101692732 A CN 101692732A
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Abstract
The invention discloses a method and a device for distributing scrambling codes. In the method, cell groups requiring scrambling code distribution are divided into N layers of honeycomb groups. The method also comprises the following steps: determining one of the cell groups with most adjacent cells as an original cell, performing the scrambling code distribution to the cells layer by layer from the Nth layer of honeycomb group where the original cell exists until the scrambling code distribution to all the cells in the first layer of honeycomb group is finished, and obtaining the scrambling code structure of the first honeycomb group, wherein N is an integer more than one; multiplexing the scrambling code structure of the first layer of honeycomb group to other first layers of honeycomb groups in other cell groups to obtain the scrambling code structure of the cell groups. The method and the device can improve the efficiency of scrambling code distribution.
Description
Technical field
The present invention relates to moving communicating field, relate in particular to a kind of scrambling code distribution method and device.
Background technology
In mobile communication system, various signals transmit between terminal and base station as information carrier by carrier wave.For certain user's useful signal, other system, other carrier frequency, other users' signal all is an interfere information, and signal especially identical with described useful signal frequency, that code channel is identical is stronger to the interference of this useful signal.Therefore, reasonably the scrambler distribution can make speech quality and network capacity all improve.
But dividing timing at the scrambler that carries out the sub-district at present is to be process object with the base station, carries out the scrambler of sub-district under each base station respectively, and efficiency of scrambling code distribution is low.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is, a kind of scrambling code distribution method and device are provided, and can improve efficiency of scrambling code distribution.
For this reason, the embodiment of the invention adopts following technical scheme:
The embodiment of the invention provides a kind of scrambling code distribution method, and the area group that needs is carried out the scrambler distribution is divided into N layer honeycomb group, and this method also comprises:
Determine that maximum sub-district, adjacent sub-district is an initial cell in the described area group;
From the N layer honeycomb group at described initial cell place, the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place, obtains described ground floor honeycomb group's scrambler structure; N＞1, N is an integer;
Described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, obtains the scrambler structure of area group.
Wherein, described N layer honeycomb group from described initial cell place, the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns and is specially in the ground floor honeycomb group at initial cell place:
From the N layer honeycomb group at initial cell place, according to the order of scrambler in the order of scrambler group and the scrambler group each the cell allocation scrambler among the N layer honeycomb group at initial cell place;
Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group;
So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
Further comprise:
Whether the scrambler of judging each sub-district in the area group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
After described ground floor honeycomb group's scrambler assigns, described multiplexing before, further comprise:
Whether the scrambler of judging each sub-district among the described ground floor honeycomb group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
The described new scrambler of cell allocation that does not meet the scrambler condition for scrambler is specially:
The next scrambler of scrambler ineligible in the scrambler group under the described ineligible scrambler is distributed to the sub-district, as the new scrambler of sub-district.
Whether the described scrambler of judging the sub-district meets the scrambler condition is specially:
Judge whether there be the scrambler identical in the adjacent cells of cells scrambler with the scrambler of described sub-district, and, judge this sub-district and other use the distance between the sub-district of this cell scrambling whether to meet multiplex distance;
When the scrambler of the adjacent sub-district of the scrambler of sub-district and this sub-district all inequality, and, when sub-district and other use distance between the sub-district of this cell scrambling greater than multiplex distance, determine that the scrambler of this sub-district meets the scrambler condition; Otherwise, determine that the scrambler of this sub-district does not meet the scrambler condition.
The embodiment of the invention also provides a kind of scrambler distributor, and the area group that needs is carried out the scrambler distribution is divided into N layer honeycomb group, and this device comprises:
Determining unit is used for determining that maximum sub-district, the adjacent sub-district of described area group is an initial cell;
Allocation units are used for from the N layer honeycomb group at described initial cell place, and the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place, obtains described ground floor honeycomb group's scrambler structure; N＞1, N is an integer;
Multiplexing Unit is used for described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups of area group, obtains the scrambler structure of area group.
Described allocation units specifically are used for: from the N layer honeycomb group at initial cell place, be each the cell allocation scrambler among the N layer honeycomb group at initial cell place according to the order of scrambler in the order of scrambler group and the scrambler group; Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group; So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
Also comprise:
First judging unit is used for judging whether the scrambler of each sub-district of area group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
Also comprise:
Second judging unit, be used for judging whether the scrambler of each sub-district of described ground floor honeycomb group meets the scrambler condition, if not, does not meet the new scrambler of cell allocation of scrambler condition for scrambler, and returning described determining step, the new scrambler until this sub-district meets the scrambler condition.
Technique effect for technique scheme is analyzed as follows:
Area group is divided into N layer honeycomb group, and scrambler is divided into the scrambler group, begin successively to carry out scrambler distributes from the maximum sub-district of adjacent number of cells, ground floor honeycomb group until the initial cell place, afterwards, again the ground floor honeycomb group's that determines scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, thereby has obtained the scrambler structure of area group; Realized that carrying out scrambler according to area group distributes, and has improved efficiency of scrambling code distribution.And, distribute the scrambler structure that obtains more reasonable, the signal that has reduced between the sub-district disturbs.
Description of drawings
Fig. 1 is a kind of scrambling code distribution method schematic flow sheet of the embodiment of the invention;
Fig. 2 is the another kind of scrambling code distribution method schematic flow sheet of the embodiment of the invention;
Fig. 2 a is the 4th layer of honeycomb group of the embodiment of the invention and the 3rd layer of honeycomb group scrambling code distribution method exemplary plot;
Fig. 3 is a kind of scrambler distributor of embodiment of the invention structural representation;
Fig. 4 is the realization schematic diagram of a unit in the embodiment of the invention scrambler distributor.
Embodiment
At present dividing timing at the scrambler that carries out the sub-district is according to each base station, and that carries out cell scrambling under each base station respectively determines that allocative efficiency is low; And, to the cell allocation scrambler under each base station the time, do not consider the distribution condition of cell scrambling under other base stations, do not consider more under other base stations that cell scrambling may be to the influence of cell scrambling under the base station of distributing, for example, when identical scrambler is used in the sub-district under the different base station, if use the distance between the sub-district of identical scrambler enough big, it is strong then may to cause signal between the sub-district to disturb, and influences signal transmission effect, and then influences user experience.
Therefore, the embodiment of the invention provides a kind of scrambling code distribution method and device, and the scrambler that can carry out the area group formed the sub-district under several base stations distributes, and is then as a whole with the group, and is whole multiplexing in network, improves the allocative efficiency of cell scrambling.And then, distribute the scrambler of back area group rational in infrastructure, the signal that has reduced between the sub-district disturbs.
In the WCDMA network, distinguishing different sub-districts mainly is by different scramblers, so the distribution of the scrambler of sub-district is extremely important.At down link, the function of scrambler is to be used to distinguish different sub-districts, has 2
18-1=262,143, but do not use all scramblers, 3GPP standard only to define 8192 scramblers wherein, 8192 scramblers are divided into 512 scrambler groups, and each group comprises 1 main scrambler and corresponding 15 auxilliary scramblers.In order to shorten the time of travelling carriage search cell, the main scrambler of down link is restricted to 512, is divided into 64 groups, represents j scrambler element with j, and then the main scrambler that comprises of i main scrambler group is 8i+j, i=0, and 1 ..., 63.j=0,1 ..., 7.A main scrambler is only distributed in each sub-district.
Scrambler distribution in the following embodiment of the invention is the example that is assigned as with descending scrambler, still also can be applied in actual applications in the environment into the cell allocation uplink scrambling code.
Wherein, will obtain 64 scrambler groups after 512 descending main scrambler groupings in the embodiment of the invention, concrete scrambler group and the scrambler in the scrambler group distribute as shown in table 1.
Table 1
In addition, the principle of scrambler distribution is generally: neighbor cell is not adjacent scrambler as far as possible; Neighbor cell is not with scrambler in the scrambler group as far as possible; The reservation scrambler that some is arranged adds or the use of special area such as border in order to from now on base station; When the quantity of sub-district surpasses 512, but main scrambler of duplicate allocation is given a sub-district, at this moment to guarantee to use the distance between the sub-district of identical main scrambler enough big, make received signal in another one is used the cell coverage area of same main scrambler, be lower than threshold level.
Below, the embodiment of the invention scrambling code distribution method of Fig. 1～shown in Figure 4 and device are also based on above scrambler distribution principle.
In addition, the distribution of scrambler described in the embodiment of the invention is based on the area group of a sub-district composition under several base stations.In embodiments of the present invention, area group is divided into N layer honeycomb group, successively distributes.The quantity of sub-district does not limit here among honeycomb group's number of plies N and the every layer of honeycomb group, can specifically be provided with according to actual application environment by the technical staff.Among the following embodiment, setting N is 4, also, area group is divided into four layers of honeycomb group; Wherein,
The 4th layer of honeycomb group: the honeycomb that all sub-districts under base station constitute, set under a base station in the embodiment of the invention and comprise 3 sub-districts; The 3rd layer of honeycomb group: by several the 4th layer of a plurality of honeycomb that the honeycomb group constitutes according to certain structure; Second layer honeycomb group: by several the 3rd layer of a plurality of honeycomb that the honeycomb group constitutes according to certain structure; Ground floor honeycomb group: a plurality of honeycombs that constitute according to certain structure by several second layer honeycomb groups.In the reality, more common basic honeycomb (the 3rd layer of corresponding above-mentioned honeycomb group) has 4*3 (shown in Fig. 2 a), 3*3, and structures such as 7*3 can independently be set in actual applications.
Below, be described with reference to the accompanying drawings the realization of embodiment of the invention scrambling code distribution method and device.
Fig. 1 is an embodiment of the invention scrambling code distribution method schematic flow sheet, as shown in Figure 1, comprising:
Step 101: determine to carry out that maximum sub-district, adjacent sub-district is an initial cell in the area group that scrambler distributes.
Wherein, carry out after area group that scrambler distributes determines when required, then can corresponding definite area group in each adjacent cells of cells, and then determine each adjacent cells of cells quantity, determine that specifically method repeats no more here.
Step 102: from the N layer honeycomb group at described initial cell place, the scrambler that successively carries out the sub-district distributes, and assigns until the ground floor honeycomb group's at initial cell place scrambler, obtains described ground floor honeycomb group's scrambler structure; N＞1, and N is an integer.
Step 103: described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, obtains the scrambler structure of area group.
In the embodiment of the invention shown in Figure 1, area group is divided into N layer honeycomb group, and scrambler is divided into the scrambler group, begin successively to carry out scrambler distributes from the maximum sub-district of adjacent number of cells, ground floor honeycomb group until the initial cell place, afterwards, again the ground floor honeycomb group's that determines scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, thereby has obtained the scrambler structure of area group; Realized that carrying out scrambler according to area group distributes, and has improved the efficiency of scrambling code distribution of sub-district.And, distribute the cell scrambling structure that obtains more reasonable, the signal that has reduced between the sub-district disturbs.
Fig. 2 is the another kind of scrambling code distribution method schematic flow sheet of the embodiment of the invention, as shown in Figure 2, comprising:
Step 201: determine to carry out that maximum sub-district, adjacent sub-district is an initial cell in the area group that scrambler distributes.
Step 202: from the N layer honeycomb group at described initial cell place, successively carry out scrambler and distribute, assign, obtain described ground floor honeycomb group's scrambler structure until the ground floor honeycomb group's at initial cell place scrambler.
The realization of this step can for:
From the N layer honeycomb group at initial cell place, according to the order of scrambler in the order of scrambler group and the scrambler group each the cell allocation scrambler among the N layer honeycomb group at initial cell place;
Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group;
So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
Wherein, described according to the scrambler group order and the scrambler group in the order of scrambler scrambler when scrambler is distributed to the sub-district allocation order can for: the order according to scrambler in the order of scrambler group and the scrambler group is distributed to each sub-district with the 0th scrambler in each scrambler group earlier successively, afterwards, successively the 0th scrambler in each scrambler group distributed to each sub-district again, so analogize.
Since the 0th element (being j=0) of 0～63 scrambler group, 0～63 order assignment from low to high, this process have comprised that the 4th layer of honeycomb group's scrambler distributes-the three layer of honeycomb group's scrambler distributions-second layer honeycomb group's scrambler distribution.
The 4th layer of honeycomb group: the base station (abbreviation initial base station) with the initial cell place is an object, from initial cell, according to the counter clockwise direction of subdistrict position, is followed successively by 3 cell allocation scramblers.
The 3rd layer of honeycomb group: after the scrambler of sub-district is distributed in the initial base station, select the nearest neighbours base station of neighbours base station middle distance of initial base station among the 3rd layer of honeycomb group, (method can be with reference to the distribution method of initial base station for the cell allocation scrambler under this neighbours base station, position and this neighbours base station of order assignment according to scrambler in the initial base station), be cell allocation scrambler in other neighbours base stations of initial base station by order counterclockwise afterwards, by that analogy, the scrambler with the sub-district of all base stations among the 3rd layer of honeycomb group assigns.
Second layer honeycomb group:, proceed the distribution of cell scrambling among other the 3rd layer of honeycomb group among the second layer honeycomb group according to above-mentioned the 3rd layer of honeycomb group's distribution method.
With following 3 sub-districts, a base station is example, shown in Fig. 2 a, provides sub-district scrambling code distribution method example among the 4th layer of honeycomb group and the 3rd layer of honeycomb group, and the numeral among Fig. 2 a is the base station assigns order.For example: shown in Fig. 2 a, initial cell is sub-district A, initial base station is base station 1, two sub-districts in addition under the base station 1 are sub-district B, sub-district C by counter clockwise direction, then the 0th scrambler 0 in the 0th group of scrambler group distributed to sub-district A, the 0th scrambler 8 in the 1st group of scrambler group distributed to sub-district B, the 0th scrambler 16 in the 2nd the scrambler group distributed to sub-district C.Afterwards, the scrambler that promptly carries out sub-district in the base station 2 distributes, and is concrete, is respectively 24,32,40, by that analogy, can finish the distribution of cell scrambling under all base stations among the 3rd layer of honeycomb group.Afterwards, the cell scrambling that can use above method to carry out other the 3rd layer of honeycomb group among the second layer honeycomb group respectively distributes, and then, can use above-mentioned second layer honeycomb group's cell allocation method to carry out the cell scrambling distribution of other second layer honeycomb groups among the ground floor honeycomb group, for example, can directly be the scrambler of the cell allocation correspondence among other second layer honeycomb groups with reference to the position and the order of cell scrambling among the second layer honeycomb group.Like this, suppose to comprise b base station among the 3rd layer of honeycomb group, comprise m the 3rd layer of honeycomb group among the second layer honeycomb group, then the scrambler that can obtain i sub-district among the second layer honeycomb group according to the allocation order of sub-district is I=8i+k, i=0,1, ..., m* (a*b), here, k is that the 3rd layer of honeycomb group under described i the sub-district carries out the order that cell scrambling distributes in ground floor honeycomb group.
Step 203: whether the scrambler of judging each sub-district among the described ground floor honeycomb group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition; When the scrambler of each sub-district all meets the scrambler condition among the ground floor honeycomb group, execution in step 204.
Step 203 is the process of circulation execution, judges successively whether the scrambler of each sub-district among the ground floor honeycomb group meets the scrambler condition that is:, and the scrambler of last sub-district meets till the scrambler condition in ground floor honeycomb group.Step 203 is the correction or the optimization step of ground floor honeycomb group scrambler structure, is optional step.
Concrete, whether the scrambler of judging any sub-district among the ground floor honeycomb group eligible being specially:
Judge whether there be the scrambler identical in the adjacent cells of cells scrambler with the scrambler of described sub-district, and, judge this sub-district and other use the distance between the sub-district of this cell scrambling whether to meet multiplex distance;
When the scrambler of the scrambler of sub-district and this adjacent cells of cells all inequality, and, when other use distance between the sub-district of this cell scrambling greater than multiplex distance among sub-district and the ground floor honeycomb group, determine that the scrambler of this sub-district meets the scrambler condition; Otherwise, determine that the scrambler of this sub-district does not meet the scrambler condition.
Wherein, described multiplex distance
R wherein
MinRadius of society for area coverage minimum in the area group.K is the sub-district number among the ground floor honeycomb group.Certainly, we can also suitably adjust multiplex distance according to the propagation characteristic of signal during physical planning, need environmental factors such as actual landform landforms during adjustment.
Step 204: the ground floor honeycomb group's that obtains scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, obtains the scrambler structure of area group.
Wherein, multiplexing being meant of honeycomb group scrambler structure in this step: the cell scrambling among other ground floor honeycomb groups distributes according to the ground floor honeycomb group's who obtains scrambler structure fully.
Step 205: whether the scrambler of judging each sub-district in the area group successively meets the scrambler condition, and if not, the cell allocation that does not meet the scrambler condition for scrambler meets the new scrambler of described scrambler condition.
Concrete, whether the scrambler of judging any sub-district among the ground floor honeycomb group eligible being specially:
Judge whether there be the scrambler identical in the adjacent cells of cells scrambler with the scrambler of described sub-district, and, judge in this sub-district and the area group whether the distance between other sub-districts of using this cell scrambling meets multiplex distance;
When the scrambler of the scrambler of sub-district and this adjacent cells of cells all inequality, and, when other use distance between the sub-district of this cell scrambling greater than multiplex distance in sub-district and the area group, determine that the scrambler of this sub-district meets the scrambler condition; Otherwise, determine that the scrambler of this sub-district does not meet the scrambler condition.
Step 205 is the processes of carrying out scrambler correct-by-construction in the area group or optimization, by the execution of step 205, can further reduce and disturb with the signal between the scrambler sub-district so that the scrambler structure of the area group that obtains is more reasonable.Step 205 is an optional step.
Step 206: with the scrambler structure output of the area group that obtains.
Concrete, can use methods such as tabulation, image demonstration directly perceived to carry out the output of area group scrambler structure, do not give unnecessary details here.Step 206 is an optional step.
In the embodiment of the invention shown in Figure 2, further ground floor honeycomb group's the scrambler structure and the scrambler structure of whole area group are optimized, by guaranteeing with the distance between the scrambler sub-district greater than multiplex distance, further optimized the scrambler structure of area group, reduced with the signal between the scrambler sub-district and disturbed.
Based on above scrambling code distribution method, the embodiment of the invention shown in Figure 3 provides a kind of scrambler distributor of correspondence, as shown in Figure 3, comprising:
Determining unit 310 is used for determining that maximum sub-district, the adjacent sub-district of described area group is an initial cell;
Multiplexing Unit 330 is used for described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups of area group, obtains the scrambler structure of area group.
Wherein, described allocation units 320 specifically can be used for: from the N layer honeycomb group at initial cell place, be each the cell allocation scrambler among the N layer honeycomb group at initial cell place according to the order of scrambler in the order of scrambler group and the scrambler group; Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group; So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
Preferably, as shown in Figure 3, this device can also comprise:
First judging unit 340 is used for judging whether the scrambler of each sub-district of area group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition;
And/or, can also comprise:
Wherein, the implementation structure of described first judging unit 340 and second judging unit 350 is similar, as shown in Figure 4, can comprise respectively in first judging unit 340 and second judging unit 350:
Concrete, judgment sub-unit 410 can be used for: judge whether the adjacent cells of cells scrambler exists the scrambler identical with the scrambler of described sub-district, and, judge this sub-district and other use the distance between the sub-district of this cell scrambling whether to meet multiplex distance; When the scrambler of the adjacent sub-district of the scrambler of sub-district and this sub-district all inequality, and, when sub-district and other use distance between the sub-district of this cell scrambling greater than multiplex distance, determine that the scrambler of this sub-district meets the scrambler condition; Otherwise, determine that the scrambler of this sub-district does not meet the scrambler condition.
Distribute subelement 420, be used to scrambler not meet the new scrambler of cell allocation of scrambler condition;
Concrete, distribute subelement 420 to be used for: the next scrambler of the scrambler that will the be described ineligible affiliated scrambler group of scrambler is ineligible is distributed to the sub-district, as the new scrambler of sub-district.
In Fig. 3 and the embodiment of the invention scrambler distributor shown in Figure 4, area group is divided into N layer honeycomb group, and scrambler is divided into the scrambler group, allocation units 320 begin successively to carry out scrambler and distribute from the maximum sub-district of adjacent number of cells, ground floor honeycomb group until the initial cell place, afterwards, Multiplexing Unit 330 is multiplexed into the ground floor honeycomb group's that determines scrambler structure other ground floor honeycomb groups in the area group again, thereby has obtained the scrambler structure of area group; Realized that carrying out scrambler according to area group distributes, and has improved efficiency of scrambling code distribution.And, distribute the cell scrambling structure that obtains more reasonable, reduced between the sub-district, especially disturbed with the signal between the scrambler sub-district.
One of ordinary skill in the art will appreciate that, the process of realization the foregoing description cell scrambling distribution method can be finished by the relevant hardware of program command, described program can be stored in the read/write memory medium, and this program is carried out the corresponding step in the said method when carrying out.Described storage medium can be as ROM/RAM, magnetic disc, CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a scrambling code distribution method is characterized in that, the area group that needs is carried out the scrambler distribution is divided into N layer honeycomb group, and this method also comprises:
Determine that maximum sub-district, adjacent sub-district is an initial cell in the described area group;
From the N layer honeycomb group at described initial cell place, the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place, obtains described ground floor honeycomb group's scrambler structure; N＞1, N is an integer;
Described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups in the area group, obtains the scrambler structure of area group.
2. method according to claim 1, it is characterized in that, described N layer honeycomb group from described initial cell place, the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns and is specially in the ground floor honeycomb group at initial cell place:
From the N layer honeycomb group at initial cell place, according to the order of scrambler in the order of scrambler group and the scrambler group each the cell allocation scrambler among the N layer honeycomb group at initial cell place;
Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group;
So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
3. method according to claim 1 is characterized in that, described multiplexing after, further comprise:
Whether the scrambler of judging each sub-district in the area group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
4. method according to claim 1 is characterized in that, after described ground floor honeycomb group's scrambler assigns, described multiplexing before, further comprise:
Whether the scrambler of judging each sub-district among the described ground floor honeycomb group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
5. according to claim 3 or 4 described methods, it is characterized in that the described new scrambler of cell allocation that does not meet the scrambler condition for scrambler is specially:
The next scrambler of scrambler ineligible in the scrambler group under the described ineligible scrambler is distributed to the sub-district, as the new scrambler of sub-district.
6. according to claim 3 or 4 described methods, it is characterized in that whether the described scrambler of judging the sub-district meets the scrambler condition is specially:
Judge whether there be the scrambler identical in the adjacent cells of cells scrambler with the scrambler of described sub-district, and, judge this sub-district and other use the distance between the sub-district of this cell scrambling whether to meet multiplex distance;
When the scrambler of the adjacent sub-district of the scrambler of sub-district and this sub-district all inequality, and, when sub-district and other use distance between the sub-district of this cell scrambling greater than multiplex distance, determine that the scrambler of this sub-district meets the scrambler condition; Otherwise, determine that the scrambler of this sub-district does not meet the scrambler condition.
7. a scrambler distributor is characterized in that, the area group that needs is carried out the scrambler distribution is divided into N layer honeycomb group, and this device comprises:
Determining unit is used for determining that maximum sub-district, the adjacent sub-district of described area group is an initial cell;
Allocation units are used for from the N layer honeycomb group at described initial cell place, and the scrambler that successively carries out the sub-district distributes, and the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place, obtains described ground floor honeycomb group's scrambler structure; N＞1, N is an integer;
Multiplexing Unit is used for described ground floor honeycomb group's scrambler structure is multiplexed into other ground floor honeycomb groups of area group, obtains the scrambler structure of area group.
8. device according to claim 7, it is characterized in that, described allocation units specifically are used for: from the N layer honeycomb group at initial cell place, be each the cell allocation scrambler among the N layer honeycomb group at initial cell place according to the order of scrambler in the order of scrambler group and the scrambler group; Afterwards, continue order, scrambler is distributed to other N layer honeycomb groups among the N-1 layer honeycomb group at initial cell place according to scrambler in the order of scrambler group and the scrambler group; So analogize, the scrambler of all sub-districts assigns in the ground floor honeycomb group at initial cell place.
9. according to claim 7 or 8 described devices, it is characterized in that, also comprise:
First judging unit is used for judging whether the scrambler of each sub-district of area group meets the scrambler condition, if not, for scrambler does not meet the new scrambler of cell allocation of scrambler condition, and returns described determining step, and the new scrambler until this sub-district meets the scrambler condition.
10. according to claim 7 or 8 described devices, it is characterized in that, also comprise:
Second judging unit, be used for judging whether the scrambler of each sub-district of described ground floor honeycomb group meets the scrambler condition, if not, does not meet the new scrambler of cell allocation of scrambler condition for scrambler, and returning described determining step, the new scrambler until this sub-district meets the scrambler condition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102072427A CN101692732B (en) | 2009-10-22 | 2009-10-22 | Method and device for distributing scrambling codes |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009102072427A CN101692732B (en) | 2009-10-22 | 2009-10-22 | Method and device for distributing scrambling codes |
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| CN101692732A true CN101692732A (en) | 2010-04-07 |
| CN101692732B CN101692732B (en) | 2012-02-08 |
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| CN2009102072427A Expired - Fee Related CN101692732B (en) | 2009-10-22 | 2009-10-22 | Method and device for distributing scrambling codes |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223725A (en) * | 2010-04-19 | 2011-10-19 | 普天信息技术研究院有限公司 | Scrambling code distribution method |
| CN102917361A (en) * | 2011-08-01 | 2013-02-06 | 中国移动通信集团上海有限公司 | Device and method for inspection of scrambling code distribution rationality |
| CN103607719A (en) * | 2013-11-06 | 2014-02-26 | 广东省电信规划设计院有限公司 | Cell PCI setting method in LTE network and system thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7061966B2 (en) * | 2003-02-27 | 2006-06-13 | Motorola, Inc. | Frame synchronization and scrambling code indentification in wireless communications systems and methods therefor |
| CN1281012C (en) * | 2003-05-20 | 2006-10-18 | 中兴通讯股份有限公司 | Up code scrambling distributing method in WCDMA system |
| CN100369401C (en) * | 2005-02-03 | 2008-02-13 | 北京北方烽火科技有限公司 | Method of uplink scrambling code distribution in WCDMA system |
| CN101064551B (en) * | 2006-04-27 | 2010-07-28 | 大唐移动通信设备有限公司 | Scrambling code distribution method for CDMA system |
-
2009
- 2009-10-22 CN CN2009102072427A patent/CN101692732B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223725A (en) * | 2010-04-19 | 2011-10-19 | 普天信息技术研究院有限公司 | Scrambling code distribution method |
| CN102223725B (en) * | 2010-04-19 | 2013-11-20 | 普天信息技术研究院有限公司 | Scrambling code distribution method |
| CN102917361A (en) * | 2011-08-01 | 2013-02-06 | 中国移动通信集团上海有限公司 | Device and method for inspection of scrambling code distribution rationality |
| CN102917361B (en) * | 2011-08-01 | 2015-03-04 | 中国移动通信集团上海有限公司 | Device and method for inspection of scrambling code distribution rationality |
| CN103607719A (en) * | 2013-11-06 | 2014-02-26 | 广东省电信规划设计院有限公司 | Cell PCI setting method in LTE network and system thereof |
| CN103607719B (en) * | 2013-11-06 | 2017-02-08 | 广东省电信规划设计院有限公司 | Cell PCI setting method in LTE network and system thereof |
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| CN101692732B (en) | 2012-02-08 |
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