CN1089990C - Switching control method based on dynamic priority in small region - Google Patents
Switching control method based on dynamic priority in small region Download PDFInfo
- Publication number
- CN1089990C CN1089990C CN 99116197 CN99116197A CN1089990C CN 1089990 C CN1089990 C CN 1089990C CN 99116197 CN99116197 CN 99116197 CN 99116197 A CN99116197 A CN 99116197A CN 1089990 C CN1089990 C CN 1089990C
- Authority
- CN
- China
- Prior art keywords
- sub
- district
- data
- priority
- mean value
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The present invention proposes a dynamic priority conception and a control switching method on the basis of sub-zone dynamic priority, which relates to the field of wireless mobile communication. The method comprises the following steps: (1), data is collected; (2), the average value and the power estimation margin of measurement reports are calculated; (3), the average value is compared with a threshold value; (4), target sub-zones are selected; (5), the target sub-zones are ordered. The method calculating dynamic priority and simultaneously compromising the static priority and the resource utilization situations of sub-zones is reasonable and high-efficiency as compared with methods using the simple static priority conception to control switching, avoids the problem of low system efficiency caused the unbalance of service quantity, sufficiently uses system resources and improves the integral performance of networks.
Description
The present invention relates to the method for handover control of field of wireless communication, particularly relate to the method for handover control that is used for the automatic equalization traffic carrying capacity in a kind of wirelessmobile communication system.
In wireless communication field, prior art has the changing method of the balanced control of a variety of traffic carrying capacitys.It is one of method wherein that the Target cell that switches is resequenced, because it is high more to come the probability that the sub-district of front more is switched.The changing method that has comes Target cell is sorted according to power budget nargin.Because it is a lot of to influence the factor of power budget nargin,, make owing to the distribution of switching the traffic carrying capacity that produces is difficult to hold as the distance of MS and base station, the load in the sub-district, interference of surrounding environment or the like.The method that also has proposes the sort method based on native region priority, be that the high sub-district of priority is preferentially cut by MS, the then rarer MS incision in the sub-district that priority is low, consequently the sub-district that priority is high may be transshipped because the MS incision is constantly arranged, and the low sub-district of priority takes place hungry because of traffic carrying capacity is not enough.Obviously, this method is a kind of unalterable priority notion, and in other words conj.or perhaps based on the notion of the priority of static state, it still can not fundamentally solve the low problem of the unbalanced caused system effectiveness of traffic carrying capacity.
The objective of the invention is to propose a kind of method for handover control based on dynamic priority in small region, making network utilize situation automatically to control to switch according to Internet resources actual rationally distributes traffic carrying capacity, make full use of system resource, thereby improve the overall performance of network.
Technical scheme of the present invention is such, and a kind of method for handover control based on dynamic priority in small region comprises the steps:
(1) image data: promptly every about 480 milliseconds, the data of the measurement report that base station controller BSC reception base transceiver station BTS reports comprise the downlink data of MS measurement and the upstream data that BTS measures.
(2) mean value and the power budget nargin of calculating measurement report: after the measurement report data that keeps is more than the sample number that requires, receive measurement report, new data and the old data that drop in the sliding window are weighted on average at every turn.Wherein the weights of the mean value of the level of average distance and adjacent cell are 1.The computing formula of described power budget nargin is
ΔPBGT(n)＝PBGT(n)-HO_MARGIN(n)。
(3) relatively: when the mean value that keeps during more than the number that requires with mean value and threshold values, participate in and threshold values process relatively, according to the priority of switch reasons, the order of comparison procedure is fixed, when one of them switch reasons was set up, comparison procedure finished.
(4) select target sub-district: because minizone when switching, power budget nargin is greater than 0, and the mean value of descending level goes into to elect as Target cell greater than the adjacent cell that minimum inserts level when switch former.
(5) Target cell ordering: according to the dynamic priority of the resource situation calculation plot of Target cell, the dynamic priority according to the sub-district sorts then, and the sub-district that priority is high comes the front.If the dynamic priority of two Target cells is identical, according to the power budget nargin ordering of these two sub-districts, the sub-district that power budget nargin is high comes the front again.Further specify operation principle of the present invention below in conjunction with accompanying drawing, table.
Fig. 1 is a switching device shifter structured flowchart of using changing method of the present invention; Fig. 2 is the diagram of the dynamic priority that proposes among the present invention; Fig. 3 implements specific embodiment signal of the present invention; Fig. 4 implements another specific embodiment signal of the present invention; Table 1 is a measurement report data; Table 2 is the mean value of data in the table 1; Table 3 is the threshold values in the database; The logarithmic table of table 4 for avoiding complex calculation to provide.
The present invention is based on the automatic balanced switching control method of a kind of portfolio that dynamic priority proposes, its nuclear The heart is the dynamic priority of residential quarter. Dynamic priority be the residential quarter static priority since TCH channel resource decrease Consumption and the result that obtains of downward modulation. The variation of dynamic priority is the process of a self adaptation. Resource when the residential quarter When sufficient, the dynamic priority of residential quarter is near the static priority of residential quarter, and MS cuts easily; Along with MS Continuous incision, the resource of residential quarter constantly consumes, the TCH channel resource of this residential quarter also constantly descends, therefore The dynamic priority of residential quarter descends, and MS just is not easy incision like this; Along with user's on-hook, the TCH of residential quarter The channel resource rises, and the dynamic priority of residential quarter rises again thereupon. Is opening the residential quarter that static priority is high in addition Dynamic priority height during the beginning, it is strong to absorb professional ability, along with the continuous incision of portfolio, dynamic priority Very fast decline. When the dynamic priority between the residential quarter was similar, the residential quarter that static priority is high absorbed professional Ability relatively a little less than because the dynamic priority of these residential quarters is very fast with the velocity ratio that resource descends, at two grades Resource percentage shared between the priority is fewer. Network is the static priority height behind long-time steady operation The portfolio of residential quarter relatively high, but can not transship; And the portfolio of the low residential quarter of static priority is relative Lower, but can be not hungry.
Fig. 1 is the switching device shifter structured flowchart. Link to each other by gateway between the MSC. Between MSC and the BSC be The A interface of standard. Be the ABIS interface between BSC and the BTS, this is the internal interface of base station. MS and The UM that between the BTS is standard does not have line interface. The corresponding residential quarter of a general BTS. Press the MS place Source BSC is different with target BSC's, and one has three kinds of switchings between the residential quarter:
Switch between the residential quarter in the BSC, switch to BTS12 such as MS from BTS11;
Switch between the residential quarter between BSC, switch to BTS22 such as MS from BTS21;
Switch between the residential quarter between the MSC, switch to BTS22 such as MS from BTS11. These three kinds of switchings all need to provide the Target cell tabulation of switching.
Table 1 is to put the data that obtain in order according to the measurement report of the step of described switching control method (1) gained. Wherein the performance number of MS and BS only has one. Upstream data, descending data, Timing Advance and vicinity It is in 32 the circulation formation that the residential quarter measured value is kept at length separately. " counter " cumulative data of formation Number. Can extrapolate " current location " that keeps the last measurement report data according to the number of data. 32 measured values that kept at most 16 contiguous residential quarters. Represent this record with parameter A GE in the record of residential quarter The degree of reliability. During each processing measurement report, if record is refreshed, AGE is 0, otherwise adds 1. When in certain measurement report new contiguous residential quarter being arranged, it will replace the oldest record. This reporter records possibility Being empty record, also may be the old record that has worn out. Utilize this kind mechanism to keep up-to-date and most worthy Contiguous residential quarter data.
Table 2 is the mean value of data in the table 1. In the step (2) of described switching control method, sliding window ginseng Number HREQAV is the sample number of calculating mean value. When the data that keep surpass HREQAV, every HREQAV data obtain a mean value. Computing formula is:WEIGHT wherein is the weights of flag data reliability. The sign of discontinuous transmission in measurement report DTA is 1 o'clock, and the weights of data are 1, otherwise is relative weights greater than 1. BSC is according to the mean value of formula 1 calculating book residential quarter up-downgoing level and the bit error rate. Because Timing Advance TA direct ratio in the distance of MS and base station, has just obtained MS by TA is averaged Average distance with the base station. When the level mean value of the contiguous residential quarter of calculating and range averaging value, weights all are 1 relatively, because this two seed ginseng Number is irrelevant with discontinuousness transmission mode. The formula of the power budget nargin of calculation plot is: Δ PBGT (n)=PBGT (n)-HO_MARGIN (n). Formula Middle PBGT (n) depends on the level mean value of contiguous residential quarter. Power budget nargin is more big, the road of contiguous residential quarter The footpath loss is more little, and the possibility that is switched is more big; Otherwise the path loss of contiguous residential quarter is more big, is switched Possibility more little.
In the step of described switching control method (3), relate to the comparison of mean value and threshold values. Table 3 provides Be threshold values itself in the database. Threshold values is made up of 3 parts: threshold values itself, sample sum N and effective sample Given figure P. The mean value that keeps when a certain data is during more than N, with corresponding threshold values in the mean value of these data and the database Compare and determine whether switch. The basic principle of switching can be described as: have P to surpass in N mean value Go out the scope of threshold values regulation, will trigger switching. Order relatively is: interference level relatively; The up-downgoing bit error rate relatively; The up-downgoing level ratio; Average departure From comparing; Power budget relatively. In case wherein certain once satisfies above-mentioned switching principle, stop comparison at once Process provides the reason of switching. Interference level result relatively is inner the switching, and all the other are for switching between the residential quarter.
In the step of described method for handover control (4), be not inner the switching if trigger the reason of switching, BSC is the select target sub-district from the adjacent cell that keeps.The condition that selected Target cell should satisfy is: the average level of the Target cell of being chosen must insert level greater than the minimum that this Target cell requires, and power budget nargin Δ PBGT (n) must be greater than 0.
In the step of described method for handover control (5), if when meeting more than one of the Target cell of above-mentioned condition, BSC will adopt the mode of estimating dynamic priority to be sorted in the target complete sub-district.The resource situation of query aim sub-district at first calculates the resource percentage of sub-district; Inquire about the static priority of sub-district then, afterwards both are converted to the dynamic priority of sub-district.Sort according to the dynamic priority that calculates this moment in sub-district in the Target cell tabulation, the sub-district that priority is high comes the front.If the dynamic priority of two Target cells is identical, then again according to the power budget nargin ordering of these two sub-districts, the sub-district that power budget nargin is high comes the front.At last switch reasons that obtains and the tabulation of sorted Target cell are offered business process.
Fig. 2 can regard the diagram to dynamic priority as.As mentioned above, dynamic priority depends primarily on the static priority of sub-district and the resource percentage of sub-district.The static priority of sub-district has 0～7 totally 8 grades, and progression is big more, and priority is high more, can be provided with according to the statistical law of traffic carrying capacity.The topmost basis that static priority is set is the geographical position of sub-district.Such as the Microcell in the building, be provided with than higher with this sub-district with the priority of the adjacent cell of one deck, and the priority of the adjacent cell of different layers is provided with lowlyer, guarantees like this to switch to carry out on the first floor face basically, reduce and disturb, improve speech quality.
The resource percentage of sub-district is meant that TCH idle in the sub-district accounts for the percentage of total TCH channel, and scope is 0 to 100.This is that MS only is concerned about by the TCH channel of incision sub-district because when switching.The resource percentage of TCH channel is high more, and the load of this sub-district is light more, just means that also success rate for switching is high more.Be limited to SP_LOW (SP_LOW＞=10) under the regulation resource, when resource was lower than SP_LOW, the load of this sub-district was near saturated, and dynamic priority is 0.The resource percentage SP of sub-district is: TCH_AVAIL in SP=100* (∑ TCH_AVAIL) ÷ TCH_TOTAL formula 2 formulas: the sum of idle TCH channel in the sub-district; TCH_TOTAL: the sum of TCH channel in the sub-district.As seen, suppose that sub-district resource percentage constantly is SP, so regulation:
SP=SP_LOW*A
m Formula 3 truth of a matter A wherein satisfies condition:
100=SP_LOW*A
NFormula 4N is the static priority of sub-district, obtains truth of a matter A by formula 4 to be:
A=(100 ÷ SP_LOW)
INFormula 5 visible A are only relevant with the static priority N of resource lower limit SP_LOW and sub-district.N is big more, and A is more little.Have in conjunction with formula 3 and formula 5:
Fig. 2 can think the diagram of formula 6, wherein supposes the static priority N=4 of this adjacent cell.When m value 0 arrived N, Y-axis obtained N+1 different value division of resources is become N+1 interval, the dynamic priority of each interval corresponding sub-district.Obviously as can be seen, except dynamic priority 0, the interval at other dynamic priority places enlarges from top to bottom successively.Relation between this resource percentage and the dynamic priority is based on such thought: when resource is also well-to-do, the MS that has inserted in the sub-district is fewer, even new MS incision is arranged, influence to the wireless environment of sub-district and network performance is little, therefore the dynamic priority of sub-district reduces slowly, encourages the MS incision; When resource was relatively deficienter, the MS of access was many, and the interference in the sub-district increases, and the performance of system descends to some extent, and at this moment new MS incision is arranged again, and the sub-district is made the matter worse, so dynamic priority reduces than comparatively fast, to slow down new MS incision.The present invention converts the resource percentage of sub-district in the dynamic priority of sub-district by means of exponential Function Model, simulates this elder generation anxious feature in slow back.From Fig. 2 as seen, the resource SP of sub-district reduces to 0 from 100, and corresponding dynamic priority is reduced to 0 from 4.Suppose that SP_LOW is 10, priority 4 occupies about 44% resource, and priority 1 occupies about 17% resource.Obtain according to formula 6:
M rounds numerical value from small to large in set [0, N], in case the M 〉=m that satisfies condition, M is exactly the dynamic priority of resource percentage SP correspondence.Have in conjunction with formula 7: N*ln (SP ÷ SP-LOW)≤M*ln (100 ÷ SP-LOW) formula 8 is complicated loaded down with trivial details logarithm operation in the formula 8, and the present invention has adopted tabledriven way.Formula 8 can be write as again: wherein LN (SP) is from the i.e. inquiry the table 4 of ready-made logarithmic table in advance for N*LN (SP)≤M*LN (100) formula 9, and the mapping relations of resource percentage and logarithmic table are as follows:
Function integer (X) asks on the number axis and the hithermost left side of X integer.Suppose that SP_LOW is 10, when SP is 50, question blank 4, LN (SP) is 161.When SP is 100, obtaining LN (SP) is 228.
Fig. 3 is one embodiment of the present of invention.Suppose that sub-district A has the fairground just, the static priority of each sub-district is provided with by diagram now.When a lot of MS among the A of sub-district rise when exhaling, must there be MS to produce and switches.At this moment the high sub-district of static priority is also high as the dynamic priority of B or D sub-district, and MS begins to switch to the sub-district on the right; After a period of time, the local resource on the right reduces, and the dynamic priority of sub-district descends.When the dynamic priority of minizone was washed substantially, because rising and to exhale at random arranged in the sub-district, the dynamic priority of sub-district, the left side might raise, and MS switches left, has also reduced the dynamic priority of sub-district, the left side simultaneously.If 1 year, suppose that there is the fairground B sub-district.The static priority that the B sub-district is set so is 0, and the static priority of H, I, J sub-district is 7, also can obtain identical effect.
Fig. 4 is another one embodiment of the present invention.Suppose that sub-district A is the GSM900 macrocellular, B is the DCS1800 microcellulor.In order to improve the access success rate of coated region, wish that the business that inserts among the A of sub-district flows to sub-district B.When the network planning, the static priority of sub-district A is set to 3 intentionally, and B is 7.When MS need switch among the A of sub-district, switch to sub-district B naturally like this.After a period of time, sub-district B is because absorb enough business, and dynamic priority descends, and absorbs professional ability and descends naturally, finally paces up and down near balance point.
The present invention is based on dynamic priority in small region and a kind of method for handover control of proposing, because dynamic priority is taken into account the static priority of sub-district and the utilization of resources situation of this sub-district simultaneously, more rationally more efficient than the method for switching with simple static priority notion control, can make full use of the resource of system, improving the overall performance of network, is that the useful of plot planning replenished.
The present invention is narration for convenience; English abbreviation appears in many places, now provides the table of comparisons as follows: the English full name Chinese of (videing infra) sequence number abbreviation full name 1 MS Mobile Station travelling carriage 2 BSC Base Station Controller base station controllers 3 TCH Traffic CHannel Traffic Channels 4 MS1...N Mobile Station 1...N travelling carriage 1...N5 DCS Digital Cellular System Digital Cellular Systems 6 GSM Global Systemcfor Mobile global system for mobile communications 7 MSC Mobile Switching Center mobile switching centres
Stabd-alone Dedicated Control8 SDCCH Separate Dedicated Control Channel
CHannel9 BCCH Broadcast Control CHannel BCCH 10 TDMA Time Division Multiple Access time division multiple acesses insert 11 BTS Base Transceiver Station base transceiver stations, 12 PBGT Power Budget power budgets, 13 TA Time Advance Timing Advance 14 HO_MARGIN (n) power budget thresholdings, 15 Δ PBGT (n) power budget nargin
Claims (8)
1. the method for handover control based on dynamic priority in small region is characterized in that comprising the steps:
(1) image data is promptly every about 480 milliseconds, and the data of the measurement report that base station controller BSC reception base transceiver station BTS reports comprise the downlink data of MS measurement and the upstream data that BTS measures;
(2) mean value of calculating measurement report and power budget nargin are after the measurement data that keeps is more than the sample number that requires, receive measurement report at every turn, new data and the old data that drop in the sliding window are weighted on average, and wherein the weights of the mean value of the level of average distance and adjacent cell are 1; The formula of the power budget nargin Δ PBGT (n) of calculation plot is:
Power budget PBGT (n) depends on the level mean value of adjacent cell in Δ PBGT (n)=PBGT (n)-HO_MARGIN (n) formula, and HO_MARGIN (n) is the power budget thresholding;
(3) with mean value and threshold values relatively when the mean value that keeps during more than the number that requires, participate in and threshold values process relatively, according to the priority of switch reasons, the order of comparison procedure is fixed, when one of them switch reasons is set up, the comparison procedure end;
(4) because minizone when switching, power budget nargin is greater than 0, and the mean value of descending level goes into to elect as Target cell greater than the adjacent cell that minimum inserts level when switch former in the select target sub-district;
(5) the Target cell ordering is according to the dynamic priority of the resource situation calculation plot of Target cell, and the dynamic priority according to the sub-district sorts then, and the sub-district that priority is high comes the front; If the dynamic priority of two Target cells is identical, according to the power budget nargin ordering of these two sub-districts, the sub-district that power budget nargin is high comes the front again.
2. method for handover control as claimed in claim 1 is characterized in that: wherein the performance number of MS and BS has only one; Upstream data, downlink data, it is in 32 the round-robin queue that Timing Advance and measurements of neighboring cells value are kept at length separately; The number of " counter " cumulative data of formation; Can extrapolate " current location " that keeps the last measurement report data according to the number of data; 32 measured values that kept 16 adjacent cells at most; Represent the degree of reliability of this record in the record of sub-district with parameter A GE, when handling measurement report, if record is refreshed, AGE is 0, otherwise adds 1 at every turn.
3. method for handover control as claimed in claim 1 or 2 is characterized in that: the computing formula of mean value is in the described step (2)
WEIGHT wherein is the weights of flag data reliability; The weights of data are 1 when the sign DTA of discontinuous transmission in the measurement report is 1, otherwise are relative weights greater than 1; BSC calculates the mean value of this sub-district up-downgoing level and the error rate according to formula 1; In the formula of the power budget nargin of described calculation plot, PBGT (n) depends on the level mean value of adjacent cell.
4. method for handover control as claimed in claim 1 is characterized in that: the threshold values in the step of described method for handover control (3) is made up of 3 parts: threshold values itself, and total sample number N and effective sample are counted P; The mean value that keeps when a certain data is during more than N, and whether the decision of comparing of corresponding threshold values in the mean value of these data and the database is switched; The basic principle of switching is: P scope that exceeds the threshold values regulation arranged in N mean value, will trigger switching; The order of described comparison is: interference level relatively; The up-downgoing error rate relatively; The up-downgoing level ratio; Average distance relatively; Power budget relatively; In case wherein certain once satisfies above-mentioned switching principle, stop comparison procedure at once, provide the reason of switching; Described switch reasons is divided into two classes: the result who is compared by interference level is inner the switching, and all the other switch for the minizone.
5. method for handover control as claimed in claim 1, it is characterized in that: in the step of described method for handover control (4), if trigger the reason of switching is not inner the switching, BSC is the select target sub-district from the adjacent cell that keeps, the condition that selected Target cell should satisfy is: the average level of the Target cell of being chosen must insert level greater than the minimum that this Target cell requires, and power budget nargin Δ PBGT (n) must be greater than 0.
6. as claim 1,2,4,5 one of any described method for handover control, it is characterized in that: the sort method in the step of described method for handover control (5) is, the resource situation of query aim sub-district at first calculates the resource percentage of sub-district; Inquire about the static priority of sub-district then, afterwards both are converted to the dynamic priority of sub-district; Sort according to the dynamic priority that calculates this moment in sub-district in the Target cell tabulation.
7. method for handover control as claimed in claim 6 is characterized in that: the formula of calculation plot resource percentage SP constantly is:
SP=SP_LOW*A
mFormula 3 truth of a matter A wherein satisfies condition:
100=SP_LOW*A
NFormula 4
8. method for handover control as claimed in claim 6 is characterized in that: when the dynamic priority of two Target cells was identical, then according to the power budget nargin ordering of these two sub-districts, the sub-district that power budget nargin is high came the front.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116197 CN1089990C (en) | 1999-05-21 | 1999-05-21 | Switching control method based on dynamic priority in small region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116197 CN1089990C (en) | 1999-05-21 | 1999-05-21 | Switching control method based on dynamic priority in small region |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1255815A CN1255815A (en) | 2000-06-07 |
| CN1089990C true CN1089990C (en) | 2002-08-28 |
Family
ID=5279036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99116197 Expired - Lifetime CN1089990C (en) | 1999-05-21 | 1999-05-21 | Switching control method based on dynamic priority in small region |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1089990C (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323562C (en) * | 2003-11-13 | 2007-06-27 | 华为技术有限公司 | Method for updating small district switching threshhold value in mobile communication network |
| JP4283644B2 (en) * | 2003-11-19 | 2009-06-24 | 株式会社日立コミュニケーションテクノロジー | Wireless communication system and wireless channel control method |
| CN100352311C (en) * | 2004-05-25 | 2007-11-28 | 中兴通讯股份有限公司 | Method for improving switching rate between mobile telecommunication systems |
| AU2005257619B2 (en) * | 2004-06-23 | 2008-07-17 | Nokia Technologies Oy | Method of configuring and updating connection identifier in a broadband wireless access communication system |
| CN100399858C (en) * | 2004-09-02 | 2008-07-02 | 大唐移动通信设备有限公司 | Selecting method of switching target community in TDD/CDMA system |
| SE0402505L (en) * | 2004-10-14 | 2006-04-15 | Faelt Comm Ab | Device for a mobile telephone system |
| CN100433643C (en) * | 2005-06-29 | 2008-11-12 | 华为技术有限公司 | Parameter information and method for connecting identification renewal during system soft switching |
| CN101022650B (en) * | 2006-02-15 | 2010-06-16 | 中兴通讯股份有限公司 | Switching judgment method and device for wireless communication system |
| CN100466822C (en) * | 2006-11-27 | 2009-03-04 | 华为技术有限公司 | Method and apparatus for selecting target cell |
| WO2009089650A1 (en) * | 2008-01-15 | 2009-07-23 | Zte Corporation | A method and apparatus for reporting a measurement report |
| CN101557627B (en) * | 2008-04-10 | 2011-05-04 | 华为技术有限公司 | Method for reelecting cell, device and communication system |
| CN102131253B (en) * | 2008-04-10 | 2013-09-25 | 华为技术有限公司 | Method and device for cell reselection and communication system |
| CN101854681B (en) * | 2009-03-30 | 2012-12-26 | 电信科学技术研究院 | Method and device for determining number of cells in preparation set |
| CN101588605B (en) * | 2009-06-24 | 2011-05-04 | 华为技术有限公司 | Method for dispatching multi-carrier cells and network device |
| CN101854684B (en) * | 2010-05-17 | 2012-11-14 | 北京邮电大学 | Handover type based method for optimizing handover parameters in wireless celluar communication system |
| CN102843735B (en) * | 2011-06-21 | 2018-03-23 | 中兴通讯股份有限公司 | Cell switching method and system |
| CN102883351B (en) * | 2012-09-06 | 2015-04-22 | 北京拓明科技有限公司 | Method for improving network quality on basis of double-frequency three-layer mode |
-
1999
- 1999-05-21 CN CN 99116197 patent/CN1089990C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1255815A (en) | 2000-06-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1089990C (en) | Switching control method based on dynamic priority in small region | |
| US7142868B1 (en) | Method and system for predicting wireless communication system traffic | |
| CN101313488B (en) | Method and apparatus for regulating emission power of pilot channel | |
| CN111314940A (en) | Wireless network deployment method for 5G NSA networking mode | |
| CN101296477B (en) | Method and device for planning network topological | |
| Bousia et al. | Game theoretic approach for switching off base stations in multi-operator environments | |
| CN100464606C (en) | Method and system for adjusting wireless network resource | |
| EP1688008A1 (en) | Method for evaluating the performances of a mobile telephony network | |
| CN101213853A (en) | Wireless high-speed data network planning tool | |
| JP2003163975A (en) | Method and system for planning and evaluation of cdma radio network | |
| CN102281575B (en) | Method for accessing according to sequence of slot time priority and wireless network controller | |
| CN102281574A (en) | Method for determining cell of carrying out interference coordination and wireless network controller | |
| CN102045734A (en) | TD-SCDMA (time division-synchronization code division multiple access) system parameter method based on automatic scene analysis | |
| CN107241773A (en) | A kind of method, device and the base station equipment of cell switching | |
| CN106233764B (en) | information processing method and device | |
| CN103002495A (en) | Assessment method and device of wireless network structure | |
| CN102196456B (en) | Method for improving frequency spectrum utilization factor of heterogeneous wireless network using CS (circuit switching) | |
| CN103813384B (en) | Method and device for balancing business in wireless network cell set | |
| ATE323388T1 (en) | QUALITY OF SERVICE (QOS) BASED METHOD FOR TRAFFIC LOAD MANAGEMENT IN A MOBILE COMMUNICATION NETWORK USING MULTIPLE RADIO ACCESS TECHNOLOGIES | |
| CN108271160B (en) | Network resource optimization method and device | |
| CN102469521B (en) | A kind of method of dynamic conditioning QoS index | |
| WO2020215282A1 (en) | Method and apparatus for evaluate data traffic depressed by radio issues | |
| CN100391300C (en) | Blind hand off method from wideband code division multiple access system to worldwide mobile communication system | |
| CN110324886A (en) | Ascending power control method and base station | |
| Yang et al. | A heterogeneous wireless network selection algorithm based on non-cooperative game theory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZTE CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHENZHENG CITY ZTE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518057 Department of law, Zhongxing building, South hi tech Industrial Park, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee after: ZTE Corporation Address before: 518057 Zhongxing building, science and technology south road, Nanshan District hi tech Industrial Park, Guangdong, Shenzhen Patentee before: Zhongxing Communication Co., Ltd., Shenzhen City |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20020828 |