CN101415254B - Method, apparatus and base station equipment for distributing scrambling code - Google Patents
Method, apparatus and base station equipment for distributing scrambling code Download PDFInfo
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- CN101415254B CN101415254B CN2008102171926A CN200810217192A CN101415254B CN 101415254 B CN101415254 B CN 101415254B CN 2008102171926 A CN2008102171926 A CN 2008102171926A CN 200810217192 A CN200810217192 A CN 200810217192A CN 101415254 B CN101415254 B CN 101415254B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
Abstract
The embodiment of the invention discloses a scrambler distributing method. In the method, a first working scrambler is distributed, first voice service statistic data is collected when the first working scrambler works, and a first performance index is obtained according to the first voice service statistic data; a second working scrambler is distributed, second voice service statistic data are collected when the second working scrambler works, and a second performance index is obtained according to the second talking data; the distributed working scramblers are determined according to the first performance index and the second performance index. The embodiment of the invention also discloses a scrambler distributing device, a base station device and a communication system. According to the scrambler distributing method, the device, the base station device and the communication system provided by the embodiment, the probability that adjacent family base stations distribute the same working scrambler can be lowered, the switching success rate among the base stations of the families can be improved, UE network disconnections can be reduced, and the success rate of cell reselection and the application continuity when UE moves to the covering areas of the family base stations from macro-cell.
Description
Technical field
The present invention relates to the communication technology, particularly method, scrambler distributor and the base station equipment of scrambler distribution.
Background technology
In global scale commercialization, particularly WCDMA (Wideband Code Division Multiple Access (WCDMA)) system, number of users improves constantly 3-G (Generation Three mobile communication system) (3G), and traffic carrying capacity increases month by month.Under the driving of business rapid growth, network welcomes the demand of rapid growth, network capacity, covering and quality are all proposed higher requirement, for the WCDMA technology, this three is closely related, and under the prerequisite that guarantees network capacity and quality, improves the network coverage, can help operator to improve running income, thereby this is an important technique measure.Therefore, various form base station occur in succession, for improve network overlapping effect provide on the equipment may.
From existing actual 3G network coverage condition, indoor covering is the weak link of 3G, and family covers the relatively poor place of indoor especially covering.Generally speaking, the indoor covering of office block, operator relatively payes attention to, and can adopt indoor distributed system to deal with problems, and does not relate to private rights and interests, realizes than being easier to.But for home area, it is private that this zone belongs to, and operator is difficult to control.Simultaneously, from the operation angle, the user gets back to after the family, and is comparatively strong to the amusement demand, and the telephone traffic of home area also is the important source of operator's income.Therefore, " Home eNodeB (Home NodeB) " is born because of the demand existence in market, and the characteristics of this base station are that volume is little, and power is little, plug and play.
Because Home eNodeB is based on personal consumption, enormous amount, need non-maintaining, perhaps need operator to safeguard as few as possible, technical especially access aspect just needs Home eNodeB to support data configuration fully automatically, disturb automatic Detection ﹠ Controling, clock is synchronous automatically, plans automatically and optimization etc.
If the Home eNodeB parameter adopts the mode of manual configuration, promptly as macrocell, utilize instrument to give each Home eNodeB configuration parameter, then workload is huge.Because the Home eNodeB enormous amount, scrambler resource is limited, and artificial parameter configuration almost is unavailable for Home eNodeB, thereby can't adopt the mode of manual configuration to distribute for each base station.
In the prior art, Home eNodeB determines the scrambler of this base station by the situation of using scrambler in the automatic detection surrounding environment.In realizing process of the present invention, the inventor finds that the detection and the distribution of scrambler face specific question in the automatic planning and optimizational function of Home eNodeB.Because the restriction of the installation site of Home eNodeB, but its detection range and coverage may not be identical, just might detect situation less than adjacent Home eNodeB scrambler, according to existing scrambler allocation algorithm, just the situation that adjacent Home eNodeB is assigned with identical scrambler might take place, because the neighbor cell scrambler is identical, can cause 1) UE (subscriber equipment, User Equipment) can't start the measurement neighbor cell signal, can't switch, the edge region call drop is serious, in the scene of supporting to switch between AP, very serious, can influence handover success rate; 2) in adjacent AP overlapping region, disturbing increases, and can influence the UE network selection, and the possibility that UE falls net increases, and paging success rate descends; 3) UE moves to the AP overlay area from macrocell, and has a plurality of AP scramblers identical, and UE selects a sub-district at random, and perhaps this sub-district is not a Target cell, causes sub-district gravity treatment failure.Situation for example shown in Figure 1: Home eNodeB HNB2 utilizes receiver to detect neighbor cell automatically in residing position, is the service of configuration scrambler.Because its residing position can detect the scrambler of HNB1, but detect scrambler less than HNB3.In the scrambler allocation algorithm of HNB2, just might distribute the scrambler identical, as SC2 with HNB3.But the actual coverage of HNB2 and adjacent HNB3 have overlapping covered, when UE is in overlapping covered, will cause disturbing and increase, the management of AP network mobility is influenced, can't finish switching, cause call drop when serious, influence handover success rate, cause Home eNodeB overlay network decreased performance.
Summary of the invention
In view of this, the embodiment of the invention provides method, scrambler distributor, base station equipment and the communication system that scrambler distributes.
The method that a kind of scrambler distributes comprises
Distribute first working scrambler, and collect first working scrambler, the first traffic statistics data in when work, obtain first performance index according to the described first traffic statistics data;
Distribute second working scrambler, and collect second working scrambler, the second traffic statistics data in when work, obtain second performance index according to the described second traffic statistics data;
According to described first performance index and described second performance index, determine the assignment scrambler.
A kind of scrambler distributor comprises
The working scrambler allocation units are used to distribute first working scrambler, and distribute second working scrambler;
Performance obtains the unit, the second traffic statistics data when first traffic statistics data when being used to collect the work of first working scrambler and the work of second working scrambler, and obtain first performance index according to the described first traffic statistics data, obtain second performance index according to the described second traffic statistics data;
The working scrambler determining unit is used for determining the assignment scrambler according to described first performance index and described second performance index.
A kind of base station equipment comprises the scrambler distributor that the embodiment of the invention provides.
A kind of communication system comprises the base station equipment that the embodiment of the invention provides.
The scrambling code distribution method, device, base station equipment and the communication system that provide according to the embodiment of the invention, can reduce the probability that adjacent Home eNodeB distributes identical working scrambler, improve the handover success rate between Home eNodeB, reduce UE and fall net, and can improve UE when macrocell moves to family base station overlay area the sub-district reselection success rate and the continuity of service.
Description of drawings
Fig. 1 is based on the schematic diagram of receiver scrambler assignment problem in the prior art;
Fig. 2 is the method flow diagram that scrambler distributes in the embodiment of the invention one;
Fig. 3 is the method flow diagram that scrambler distributes in the embodiment of the invention two;
Home eNodeB automatic frequency point search principle figure in Fig. 4 embodiment of the invention;
Fig. 5 is the multiplexing schematic diagram that concerns of scrambler in the embodiment of the invention;
Fig. 6 is the schematic diagram of scrambler distributor in the embodiment of the invention three;
Fig. 7 is the schematic diagram of base station equipment in the embodiment of the invention four.
Embodiment
The method that the scrambler that the embodiment of the invention provides distributes, utilize Home eNodeB to detect scrambler automatically, utilize the Key Performance Indicator of Home eNodeB simultaneously, pass through algorithm, whether judge with adjacent Home eNodeB and disposed identical scrambler, if disposed the scrambler identical with adjacent Home eNodeB, the scrambler of then adjusting this Home eNodeB distributes, and realizes the Automatic Optimal that scrambler distributes.Should be understood that this method can be used for CDMA, WCDMA or other systems that has similarly utilized scrambler to communicate, the Home eNodeB in the embodiment of the invention can also be radio reception devices such as access point AP, femto cell.
The method that the embodiment of the invention one provides a kind of scrambler to distribute as shown in Figure 2, comprising:
S101, the scrambler R1 that shares out the work (i.e. first working scrambler);
In embodiments of the present invention, can determine assignable working scrambler group, from assignable working scrambler group, obtain to carry out the assignment scrambler more earlier according to known available scrambler and the used working scrambler of adjacent Home eNodeB.
S102, the traffic statistics data D1 (the first traffic statistics data) when collecting the work of first working scrambler;
Traffic statistics data D1 can be traffic statistics data such as the predefined time T 0 interior traffic statistics data of collecting in first working scrambler work a period of time, collected predetermined amount in the time of also can being the work of first working scrambler such as the traffic statistics data of X0; The traffic statistics data can comprise and obtain various performance index such as cutting off rate, the required data of handover success rate.
S103, the scrambler R2 that shares out the work (i.e. second working scrambler);
After the first traffic statistics data collection was finished, working scrambler of sub-distribution was called the second working scrambler R2 here again; The assignment scrambler can be the working scrambler of selecting in the assignable working scrambler group of determining in S101 once more, also can be after determining assignable working scrambler group according to known available scrambler and the used scrambler of adjacent Home eNodeB again, the working scrambler of from the shared out the work scrambler group that redefines, selecting; Should be understood that the scrambler that shares out the work once more is different with assignment scrambler among the S101.
S104, the traffic statistics data D2 (the second traffic statistics data) when collecting the work of second working scrambler;
Traffic statistics data D2 can be the traffic statistics data of collecting in second working scrambler work a period of time such as the predefined time T 1, and the time T 1 that sets can be identical with the time T 0 that sets, also can be different; Traffic statistics data D2 also can be second working scrambler when work collected predetermined amount such as the traffic statistics data of X1, and the quantity X1 that sets can be identical with the quantity X0 that sets, also can be different.Traffic statistics data D2 can comprise and obtains various performance index such as cutting off rate, the required data of handover success rate.
S105, after the first traffic statistics data collection is finished, obtain performance index (i.e. first performance index) before working scrambler is redistributed according to traffic statistics data D1 collected in the S101 step;
Performance index can be cutting off rate, handover success rate etc. in the embodiment of the invention, also can be other with working scrambler to the performance relevant index that exerts an influence.
S106, after the second traffic statistics data collection is finished, obtain performance index (i.e. second performance index) after working scrambler is redistributed according to traffic statistics data D2 collected in the S104 step.
S107, according to performance index and working scrambler the performance index redistribute after of working scrambler before redistributing, determine working scrambler;
The performance index of working scrambler before and after redistributing are compared, and can be each individual event performance index before and after relatively working scrambler is redistributed respectively such as cutting off rate, handover success rate, and the working scrambler of getting better performances is as working scrambler; Also can be according to combination property index of each individual event performance index definition, the working scrambler of getting the better performances that the combination property index reflected is as working scrambler, perhaps set a threshold k, according to combination property index variation amount and the relation of set threshold k and the performance quality that combination property index reflected of working scrambler before and after redistributing, determine working scrambler.
Should be understood that the collection traffic statistics data among S102 and the S104 also can be carried out always, and when obtaining the performance index of working scrambler before and after redistributing, can set a period of time, collected traffic statistics data are intercepted according to the time that sets.
The method that the scrambler that adopts the embodiment of the invention one to provide distributes, can be by redistributing scrambler (at least once), traffic statistics data after the working scrambler distribution are write down statistics, obtain the performance index relevant with working scrambler, and according to the performance index that obtain, determine working scrambler, to avoid occurring the working scrambler situation identical with adjacent Home eNodeB, thereby the handover success rate of avoiding causing because of adjacent Home eNodeB working scrambler is identical descends the appearance of problems such as adjacent Home eNodeB overlapping region cutting off rate height.
The method that the embodiment of the invention two also provides a kind of scrambler to distribute.Generally speaking, Home eNodeB is operated in " base station mode ", has the transmitting-receiving path of agreement regulation under this pattern, but is difficult to directly realization to the detection of wireless environment.In order to realize the automatic distribution of Home eNodeB scrambler, need Home eNodeB to finish detection to wireless environment.Thereby, do not designing separately under the situation of detection hardware circuit, allow the base station can the transformation pattern, become " receiving mode " by " base station mode ", realize function to wireless environment detection.The flow process that this scrambler distributes comprises as shown in Figure 3:
S201, Home eNodeB transfer " receiving mode " to from " base station mode ";
Home eNodeB be difficult to directly realization to the detection of wireless signal, and after transferring " receiving mode " to, Home eNodeB can receive wireless signal by antenna, and then finish scrambler and distribute required detection automatically under " base station mode ".
S202, Home eNodeB detect wireless signal, solve the scrambler of the adjacent base station of Home eNodeB Location, and by operating frequency, scrambler are analyzed, and determine to distribute first working scrambler after the working frequency points of this family base station and the working scrambler group;
Pass through antenna receiving signal, Home eNodeB (being finished by the frequency synthesizer in the Home eNodeB usually) carries out related operation according to pre-configured frequency point parameters, obtain specifying collection of letters code domain power RSCP and forward pilot signal to noise ratio Ec/Io information under the frequency, select the maximum carrier wave of RSCP maximum and Ec/Io value, as the work carrier wave of Home eNodeB.The schematic diagram of Home eNodeB automatic frequency point search as shown in Figure 4, wherein, f1, f2 represent the frequency that Home eNodeB can be used, in actual the use, frequency points is not limited to 2 frequencies, can be configured according to actual conditions; Home eNodeB detects the detected scrambler under the corresponding carrier frequency; Which (individual) of scrambler that analysis scrambling device analysis scrambler decoding device in the Home eNodeB detects is the scrambler of macrocell, and which (individual) is the scrambler of adjacent Home eNodeB.At last, by analyzing, determine the available frequency of Home eNodeB.
According to available frequency and system's setting, determine working frequency points after, Home eNodeB detects scrambler, and carries out scrambler according to detected scrambler and pre-configured available scrambler and distribute.The existing macrocell of Home eNodeB application scenarios covers, also have Home eNodeB on every side and cover, consider the neighbouring relations that the actual capabilities of Home eNodeB have and do not consume too many grand network scrambler simultaneously, generally speaking, need reserve a part of scrambler for Home eNodeB, as 7-20 scrambler.Home eNodeB detects all scramblers under each working frequency points according to pre-configured available scrambler group, selects signal best, disturbs first working scrambler of minimum scrambler as this family base station.
For example: Home eNodeB can be with the scrambler group:
{SC1，SC2，SC3，SC4，SC5，SC6，SC7}
When Home eNodeB distributes scrambler, consider on the principle that adjacent base station need distribute different scrambling codes, Fig. 5 is an example of the multiplexing relation of scrambler, and wherein, what adjacent Home eNodeB distributed is different scramblers.
S203, when first working scrambler is worked, Home eNodeB is collected the first traffic statistics data; After the first traffic statistics data collection is finished, obtain first performance index according to collected traffic statistics data;
Institute's obtained performance index can be the individual event performance index, also can be the combination property index.The individual event performance index can be handover success rate (R_HO) and cutting off rate (R_DROP), combination property index (P_I) be can concentrated expression Home eNodeB performance index.In embodiments of the present invention, by analyzing, the identical performance index that can influence of the scrambler of neighbor cell comprise: handover success rate (R_HO) and cutting off rate (R_DROP), and according to the influence to the combination property index of handover success rate and cutting off rate, indices P _ I is defined as with combination property:
P_I＝a1×R_HO+a2×(1-R_DROP)
Wherein, a1, a2 are weight coefficient, and a1 determines " handover success rate " influence in the combination property index, and a2 determines " cutting off rate " influence in the combination property index.Generally speaking, the value of a1 and a2 is 50%.It is pointed out that this formula is the result who the performance index that influence the combination property index is considered according to Home eNodeB practical application scene, this formula can be general, and the value of a1 and a2 can be carried out corresponding adjusting.
The collected traffic statistics data of Home eNodeB can comprise the number of calls of handover success rate, cutting off rate and user equipment (UE) by the definition decision of combination property index; In order to guarantee to reflect more accurately the normal operation of Home eNodeB according to the combination property index that performance index such as handover success rate and cutting off rate obtain, performance index preferably should guarantee certain sample size (being the number of calls of UE), and concrete sample size can be provided with according to actual conditions.
S204, Home eNodeB distribute second working scrambler;
Can comprise:
Home eNodeB distributes second working scrambler according to the working scrambler group and first working scrambler determined in the S202 step;
Perhaps, carry out S202 once more, wireless signal is detected, solve the scrambler of the adjacent Home eNodeB of Home eNodeB, and by operating frequency, scrambler are analyzed, determine to distribute second working scrambler after the working frequency points of this family base station and the working scrambler group;
Perhaps, carry out the detection of the working scrambler of adjacent Home eNodeB once more, redefine the working scrambler group, the working scrambler group of determining in this working scrambler group and the S202 step may be different, according to first working scrambler of distributing among this working scrambler group and the S202, distribute second working scrambler;
Wherein, should be understood that second working scrambler of distribution should be different with first working scrambler of having distributed among the S202.
S205, when second working scrambler is worked, Home eNodeB is collected the second traffic statistics data; After the second traffic statistics data collection is finished, obtain second performance index according to collected traffic statistics data;
This step and step S203 are similar, do not do herein and give unnecessary details.
S206, according to first performance index and second performance index of working scrambler before and after redistributing, determine working scrambler;
Can comprise:
According to the individual event performance index of working scrambler before and after redistributing, determine working scrambler;
Performance index can comprise: handover success rate and cutting off rate.By to the comparing respectively of handover success rate and cutting off rate, determine performance index preferably working scrambler as working scrambler; Can also determine a threshold value, when the variation of performance index is in threshold range, can keep working scrambler after working scrambler is redistributed as working scrambler.
Perhaps, according to the combination property index of working scrambler before and after redistributing, determine working scrambler;
The combination property index can obtain according to individual event performance index and related weighing, as
P_I＝a1×R_HO+a2×(1-R_DROP)
Wherein, a1, a2 are weight coefficient, and P_I is the combination property index, and R_HO is a handover success rate, and R_DROP is a cutting off rate.
By the comparison to the combination property index, the working scrambler of determining the reflection better performances is as working scrambler, as determining that the bigger working scrambler of combination property index is as working scrambler.
Can determine a threshold value in addition, when the variation of performance index is in threshold range, can keep working scrambler after working scrambler is redistributed as working scrambler.Such as:
Before supposing that working scrambler is redistributed, the combination property index that is obtained is P_I1 (old), and after working scrambler was redistributed, the combination property index that is obtained was P_I2 (old), and threshold value is 20%.P_I1 (old) and P_I2 (new) are compared, when | P_I1 (old)-P_I2 (new) | in the time of＜20%, before and after can determining that scrambler is redistributed, the combination property index does not have obvious variation, thereby scrambler redistribute before and after employed working scrambler different with adjacent Home eNodeB working scrambler to a great extent, can determine scrambler is redistributed preceding scrambler as working scrambler, and carry out scrambler again and distribute, scrambler after yet can determining scrambler redistributed does not carry out scrambler again and distributes as working scrambler; When | P_I1 (old)-P_I2 (new) |〉20%, and P_I1 (old)〉during P_I2 (new), can determine scrambler redistribute the back Home eNodeB the obvious variation of performance, and the scrambler after scrambler is redistributed is assigned problem, scrambler after redistributing as scrambler is identical with the scrambler of adjacent Home eNodeB, thereby determine scrambler is redistributed preceding scrambler as working scrambler, and carry out scrambler again and distribute; When | P_I1 (old)-P_I2 (new) |〉20%, and P_I2 (new)〉during P_I1 (old), the performance of Home eNodeB obviously improves can to determine to redistribute afterwards by scrambler, and the scrambler before scrambler is redistributed is assigned problem, it is identical with the scrambler of adjacent Home eNodeB to redistribute preceding scrambler as scrambler, thereby the scrambler after determining scrambler redistributed is as working scrambler, and keeps scrambler after this scrambler is redistributed as working scrambler.
Should be understood that, in step S203 and S205, Home eNodeB also can not obtain individual event performance index and/or combination property index, but in step S206, redistribute traffic statistics data, obtained performance index and/or the combination property index that collect front and back according to scrambler.
S207, Home eNodeB return base station mode, and flow process finishes.
The method that the scrambler that adopts the embodiment of the invention two to provide distributes, can reduce the probability that adjacent Home eNodeB distributes identical working scrambler, improve the handover success rate between Home eNodeB, reduce UE and fall net, and can improve UE when macrocell moves to family base station overlay area the sub-district reselection success rate and the continuity of service.
The embodiment of the invention three provides a kind of scrambler distributor, as shown in Figure 6, comprises that working scrambler allocation units 301, performance obtain unit 302 and working scrambler determining unit 303, wherein,
Working scrambler allocation units 301 are used to distribute first working scrambler, and behind the first traffic statistics ED when performance obtains the work of unit 302 collections first working scrambler, distribute second working scrambler;
Performance obtains unit 302, the second traffic statistics data when first traffic statistics data when being used to collect the work of first working scrambler and the work of second working scrambler, and obtain first performance index according to the described first traffic statistics data, obtain second performance index according to the described second traffic statistics data;
Working scrambler determining unit 303 is used for obtaining first performance index and second performance index that unit 302 obtains according to performance, determines working scrambler.
Wherein,
Performance obtains unit 302, can comprise that traffic statistics subelement 3021 and performance index obtain subelement 3022;
Traffic statistics subelement 3021, the second traffic statistics data when first traffic statistics data when being used to collect the work of first working scrambler and the work of second working scrambler;
Performance index obtain subelement 3022, are used for obtaining first performance index according to the described first traffic statistics data, obtain second performance index according to the described second traffic statistics data.
Wherein,
First performance index can be the first individual event performance index and/or the first combination property index, and second performance index can be the second individual event performance index and/or the second combination property index.
Working scrambler determining unit 303 can comprise individual event performance index comparing unit 3031 and/or combination property index comparing unit 3032, wherein,
Individual event performance index comparing unit 3031 is used for that performance is obtained the first individual event performance index and the second individual event performance index that unit 302 obtained and compares, and determines working scrambler, such as definite performance index preferably working scrambler as working scrambler.
Combination property index comparing unit 3032 is used for the first combination property exponential sum, the second combination property index that performance acquisition unit 302 is obtained is compared, and determines working scrambler.As the first combination property exponential sum, the second combination property index is compared, the working scrambler of determining combination property index reflection better performances is as working scrambler, as determining that the bigger working scrambler of combination property index is as working scrambler.
Working scrambler determining unit 303, can also be used for according to the threshold value that sets and the variable quantity of first performance index and second performance index, determine working scrambler, be not more than when setting threshold value such as variable quantity, the performance of determining first working scrambler and second working scrambler is basic identical, can keep second working scrambler as working scrambler.
Wherein, individual event performance index can comprise cutting off rate and/or handover success rate; The definition of combination property index can be identical with the description in the embodiment of the invention one, two; Determine that according to performance index and combination property index working scrambler also can be identical with the description in the embodiment of the invention one, two, do not do and give unnecessary details herein.
The embodiment of the invention four provides a kind of base station equipment, and as shown in Figure 7, this base station equipment can be Home eNodeB, access point AP or femto cell etc.This base station equipment can comprise the scrambler distributor 30 that the embodiment of the invention three provides, and can also comprise that base station mode conversion equipment 40, working scrambler group determine device 41,
Wherein the base station mode conversion equipment 40, be used for transferring the mode of operation of base station to " receiving mode " by " base station mode ", make the base station to receive wireless signal by antenna, and then finish scrambler and distribute required detection automatically, and after working scrambler is determined, transfer mode of operation to " base station mode " by " receiving mode ";
The working scrambler group is determined device 41, is used for determining the working scrambler group of this base station equipment according to the testing result of wireless signal with to the analysis result of operating frequency, scrambler;
Working scrambler allocation units 301 in the scrambler distributor 30 are used for determining the working scrambler set of dispense working scrambler that device 41 is determined according to the working scrambler group.
The embodiment of the invention also provides a kind of communication system, and this communication system comprises the base station equipment that the embodiment of the invention four is provided.
The scrambler distributor, base station equipment and the communication system that adopt the embodiment of the invention four to provide, can reduce the probability that adjacent household base station device distributes identical working scrambler, improve the handover success rate between Home eNodeB, reduce UE and fall net, and can improve UE when macrocell moves to family base station overlay area the sub-district reselection success rate and the continuity of service.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, aforementioned program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
More than disclosed only be several specific embodiment of the present invention, obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention 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 (13)
1. the method that scrambler distributes is characterized in that, comprises
Automatically distribute base station assigns first working scrambler of scrambler, and the first traffic statistics data when collecting the work of first working scrambler, first performance index obtained according to the described first traffic statistics data;
Described base station assigns second working scrambler, and collect second working scrambler, the second traffic statistics data in when work, obtain second performance index according to the described second traffic statistics data;
The assignment scrambler is determined according to described first performance index and described second performance index in described base station.
2. the method that scrambler as claimed in claim 1 distributes is characterized in that described first performance index are the first individual event performance index or the first combination property index, and described second performance index are the second individual event performance index or the second combination property index.
3. the method that scrambler as claimed in claim 2 distributes is characterized in that described individual event performance index comprise handover success rate and/or cutting off rate.
4. the method that scrambler as claimed in claim 3 distributes is characterized in that, and is described according to described first performance index and described second performance index, determines that the assignment scrambler comprises:
Relatively the first individual event performance index and the second individual event performance index determine that the low working scrambler of handover success rate height and cutting off rate is as working scrambler.
5. the method that scrambler as claimed in claim 2 distributes is characterized in that described combination property index is specially
P_I＝a1×R_HO+a2×(1-R_ROP)
Wherein,
P_I is the combination property index; R_HO is a handover success rate; R_DROP is a cutting off rate;
A1 and a2 are weight coefficient.
6. the method that scrambler as claimed in claim 5 distributes is characterized in that, and is described according to described first performance index and described second performance index, determines that the assignment scrambler comprises:
Relatively the first combination property exponential sum, the second combination property index determines that the big working scrambler of combination property index is as the assignment scrambler.
7. the method that scrambler as claimed in claim 1 distributes is characterized in that, and is described according to described first performance index and described second performance index, determines that the assignment scrambler comprises:
Obtain the variable quantity between first performance index and second performance index, when described variable quantity is in the pre-set threshold scope, determine that second working scrambler is as the assignment scrambler.
8. a scrambler distributor is characterized in that, comprising:
The working scrambler allocation units are used to distribute first working scrambler, and distribute second working scrambler;
Performance obtains the unit, the second traffic statistics data when first traffic statistics data when being used to collect the work of first working scrambler and the work of second working scrambler, and obtain first performance index according to the described first traffic statistics data, obtain second performance index according to the described second traffic statistics data;
The working scrambler determining unit is used for determining the assignment scrambler according to described first performance index and described second performance index.
9. scrambler distributor as claimed in claim 8 is characterized in that, described first performance index are the first individual event performance index or the first combination property index, and described second performance index are the second individual event performance index or the second combination property index.
10. scrambler distributor as claimed in claim 9 is characterized in that, described working scrambler determining unit comprises:
Individual event performance index comparing unit is used for the comparison first individual event performance index and the second individual event performance index, determines working scrambler;
And/or
Combination property index comparing unit is used for the comparison first combination property exponential sum second combination property index, determines working scrambler.
11. scrambler distributor as claimed in claim 8 is characterized in that, described working scrambler determining unit also is used for determining the assignment scrambler according to variable quantity and pre-set threshold between first performance index and second performance index.
12. a base station equipment is characterized in that, comprises as any described scrambler distributor of claim 8 to 11.
13. a communication system is characterized in that, comprises base station equipment as claimed in claim 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102171926A CN101415254B (en) | 2008-11-05 | 2008-11-05 | Method, apparatus and base station equipment for distributing scrambling code |
| PCT/CN2009/074498 WO2010051729A1 (en) | 2008-11-05 | 2009-10-19 | Method, device and base station equipment for distributing scrambling code |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102171926A CN101415254B (en) | 2008-11-05 | 2008-11-05 | Method, apparatus and base station equipment for distributing scrambling code |
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| Publication Number | Publication Date |
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| CN101415254A CN101415254A (en) | 2009-04-22 |
| CN101415254B true CN101415254B (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102171926A Active CN101415254B (en) | 2008-11-05 | 2008-11-05 | Method, apparatus and base station equipment for distributing scrambling code |
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| CN (1) | CN101415254B (en) |
| WO (1) | WO2010051729A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101415254B (en) * | 2008-11-05 | 2010-09-08 | 华为技术有限公司 | Method, apparatus and base station equipment for distributing scrambling code |
| CN102056344A (en) * | 2009-11-05 | 2011-05-11 | 国基电子（上海）有限公司 | Home base station and method for setting network access parameters |
| CN101800992B (en) * | 2009-12-30 | 2012-08-08 | 华为技术有限公司 | Frequency point scrambling code collocation method, system and central arbitration node |
| CN101909314A (en) * | 2010-06-28 | 2010-12-08 | 新邮通信设备有限公司 | Method and system for configuring base station parameter |
| WO2014194496A1 (en) * | 2013-06-05 | 2014-12-11 | 华为技术有限公司 | Method and device for sending and receiving information and information transmission system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100555921C (en) * | 2004-07-27 | 2009-10-28 | 大唐移动通信设备有限公司 | The district code word planing method of time-division-synchronization code multi-address division system |
| WO2007115704A1 (en) * | 2006-04-12 | 2007-10-18 | Telefonaktiebolaget L M Ericsson (Publ) | Controlling a power level in a wireless communications system with different scrambling codes |
| CN100571447C (en) * | 2007-04-03 | 2009-12-16 | 中兴通讯股份有限公司 | The sign indicating number resource selection method of switching target small area in a kind of TD-SCDMA system |
| CN101415254B (en) * | 2008-11-05 | 2010-09-08 | 华为技术有限公司 | Method, apparatus and base station equipment for distributing scrambling code |
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| WO2010051729A1 (en) | 2010-05-14 |
| CN101415254A (en) | 2009-04-22 |
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