CN101335554B - Method for flexibly setting beam width of omni-directionally transmitting channel - Google Patents
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- CN101335554B CN101335554B CN2007101181432A CN200710118143A CN101335554B CN 101335554 B CN101335554 B CN 101335554B CN 2007101181432 A CN2007101181432 A CN 2007101181432A CN 200710118143 A CN200710118143 A CN 200710118143A CN 101335554 B CN101335554 B CN 101335554B
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Abstract
The invention relates to a method for setting omnidirectional emitting channel beam width, which is mainly used for a mobile communication system using multiple array element smart antennas, such as the TD-SCDMA mobile communication system. The invention allows for no replacement of network antenna and carries out consecutive dynamic flexible setting or regulating the beam width of the omnidirectional emitting channel by providing a corresponding test for the system or according to network performance indexes, and using multi-array-element smart antennas, so as to reach the ideal omnidirectional emitting channel beam width compatible to the environment, and fully meet the requirements of network coverage. The invention can significantly improve the adaptability of antenna to network environment without replacing the antenna, and allow for consecutive dynamic regulation of omnidirectional emitting channel beam width in response to the changes in the network environment or communication quality, thus satisfying the requirements of flexible coverage of the network to the community; in addition, the invention can apparently reduce the network maintenance cost, and lower the requirements of specific parameters of the products, thus making the selection of products more flexible and convenient.
Description
Technical field
The present invention relates to be applied to the method that beam width of omni-directionally transmitting channel is set in the GSM; Or rather; The present invention relates to use the method to set up of channel rays width of sub-district theaomni-directional transmission of the GSM of many array element smart antenna; Be specially adapted to TDS-CDMA mobile communication system (Time Division-Synchronous Code Division Multiple Access is hereinafter to be referred as TD-SCDMA).
Background technology
In the cellular mobile communication networks; Usually adopt the antenna of different beams width to realize the sub-district under the different geographical environments is covered; To be implemented under the prerequisite that own sub-district is rationally covered, effectively to reduce interference, thereby reach good the whole network coverage effect neighbor cell.
Because each sub-district covers geographical environment and varies, and the intensive city of skyscraper is arranged, the rare rural area of building is arranged, wide smooth sea area or Plain are arranged, rolling mountain area is arranged.Radio wave propagation characteristic is different in the varying environment, and is also inequality to the degree of expansion that the electric wave wave beam covers.Therefore, the beamwidth of antenna selects to be fit to the characteristics of local topography and geomorphology, as adopting the antenna of width such as 30 °, 65 °, 120 °, 360 ° respectively.Usually this parameter is fixing when antenna product is dispatched from the factory, and can not change, and this just causes the antenna product that must select the different model of a plurality of series in the networking; And when bigger variation takes place network environment, becoming cities and towns like the rural area, skyscraper changes the square into; Or skyscraper increases etc. under the situation; Need cover adjustment to original sub-district, many times need use the antenna product of different beams width to change existing equipment, so not only can cause rolling up of equipment cost; And, can influence network quality to a certain extent because it is longer to change the antenna cycle.
When GSM adopts the smart antenna of many array elements to carry out the reception of signal and launches; Like TD-SCDMA; Different with conventional antenna is; Smart antenna can obtain the wave beam of preset width and direction through each array element in the aerial array being given different width of cloth phase weights through the space superposition of weighted signal.Usually need to form two kinds of wave beams, a kind of is to change wave beam, is mainly used in the communication of each isolated user, and the angle of wave beam is constantly adjusted through following the tracks of user's arrival bearing in the base station, makes main lobe aim at the user in moving all the time.Another kind is static wave beam, is used to send public information and gives all users in the sub-district, adopts the mode of theaomni-directional transmission to cover whole sub-district usually, generally carries with common signal channel, like broadcast channel, PCH, public control and Traffic Channel.The width of this static wave beam is generally fixing, does not dynamically adjust, and when antenna dispatches from the factory, is set to fixed value usually; Perhaps be set to several grades of static fixed angles, be generally the 3-4 kind, can not adjust continuously according to environment by the base station.
The above-mentioned mode that is set to fixed value makes antenna relatively poor to the adaptability of network environment, and the change of environment need be changed antenna, and the cost of network operation is high; Can not the continuously adjustable mode make antenna beamwidth and environmental requirement not to mate completely, increase complete network and reached the difficulty that covers requirement.
Summary of the invention
The object of the invention is exactly the weak point to above-mentioned prior art, provides a kind of at GSM, is provided with or adjusts the method for beam width of omni-directionally transmitting channel flexibly as adopting many array-element antenna among the TD-SCDMA, and the sub-district is covered flexibly.This method need not be changed network antenna; Through system being tested accordingly or according to network performance index; Dynamically be provided with or adjust the beamwidth of each omni-directionally transmitting channel continuously flexibly; Make the base station can confirm the desirable beam width of omni-directionally transmitting channel that matees with environment facies continuously dynamically, thereby reach the requirement of network fully covering.
For realizing above-mentioned purpose; The present invention adopts following technical scheme: the method that a kind of flexibly setting beam width of omni-directionally transmitting channel is provided; It is characterized in that this method adopts the smart antenna of many array elements; Can be provided with flexibly dynamically continuously or the adjustment beam width of omni-directionally transmitting channel, specifically may further comprise the steps:
Step 1, confirm sub-district beam width of omni-directionally transmitting channel initial value A
0
Signal covering quality in step 2, the test actual environment;
Step 3, according to the expection requirement of cell signal covering quality, whether the signal covering quality test result that appraisal procedure 2 obtains arrives the expection requirement, if reach the covering requirement, just exports the result, gets into step 5; If do not reach requirement, get into step 4;
Step 4, the beamwidth of sub-district omni-directionally transmitting channel is adjusted and carried out signal covering quality test,, then export the result, get into step 5 if reach the covering requirement; Adjust number of times as if backlog demand and reach maximum times N
tInferior, then export the result, get into step 5; If backlog demand and adjustment number of times do not reach maximum times N
tInferior, then adjustment once more;
Some cycles T is normally moved in step 5, base station
c, NMS is regularly added up the handover success rate and the handoff failure reason of sub-district, compares with the handover success rate desired value, if there is handover success rate to occur more than or equal to the situation of handover success rate desired value, then adjustment finishes; Otherwise, should analyze the handoff failure reason, and according to both difference; Confirm to switch compensating factor and adjust cell coverage area; Again handover success rate is carried out timing and add up and compare with the handover success rate desired value, if then export the result more than or equal to the handover success rate desired value, adjustment finishes; Otherwise, get into step 6;
Step 6, NMS provide this sub-district operation warning information.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, said step 1 comprises the steps:
Step 101, basis will be built the characteristic of website surrounding environment, confirm the typical environment classification that it is affiliated;
Step 102, NMS are that beam width of omni-directionally transmitting channel initial value A is selected at this station according to environment category and covering requirement
0, and inform the base station;
Step 103, in base station equipment, according to A
0, calculate the weights W that is used for each array element of antenna
i, i=1....n,, n is a bay quantity; The base station is according to A
0, with many array-element antenna transmissions need be in the sub-district channel of theaomni-directional transmission.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, above-mentioned steps 4 specifically may further comprise the steps:
Step 401, calculation plot cover the edge actual signal and do not reach the ratio L that expection requires
L, L
H, according to L
L, L
HConfirm to cover compensating factor C
1
The adjustment step-length R of beam width of omni-directionally transmitting channel is calculated in step 402, base station
0=A
0* C
1, adjustment back beam width of omni-directionally transmitting channel A=A
0+ R
0
Signal covering quality in step 403, the test actual environment;
Step 404 judges whether to reach the covering requirement, if reach the covering requirement, then exports the result, gets into step 5; Adjust number of times as if backlog demand and reach maximum times N
tInferior, then get into step 5; If backlog demand and adjustment number of times do not reach maximum times N
tInferior, then adjustment once more.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, above-mentioned steps 5 may further comprise the steps:
Step 501, NMS are added up this sub-district handover success rate P in the N section time continuously
H, every section time span is made as T, relatively N P
HWith handover success rate desired value P
HT
Step 502, if the N section time at least P
H>=P
HT, switch compensating factor C
H=0, adjustment finishes, otherwise gets into step 503;
Step 503, analysis handoff failure reason, the table tennis switching if most of handoff failure is between cell-of-origin and Target cell causes, according to P
HAnd P
HTDifference, confirm to switch compensating factor C
H<0, otherwise C
H>0;
Step 504, base station adjustment beam width of omni-directionally transmitting channel, adjustment step-length R
H=A * C
H, adjustment back beamwidth A=A+R
H,
Step 505, this sub-district handover success rate P of NMS in the statistics T time
H, if meet the demands, the output result; If backlog demand gets into step 6.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein beamwidth initial value A
0, be rule of thumb to be worth or reference class is obtained like the settings of the sub-district of environment category.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel wherein, before the above-mentioned steps 3, also comprises step 300: delimit cell coverage area and cell edge part, confirm at the signal strength range [S of cell edge in partly
1, S
2].
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, above-mentioned covering compensating factor C
1With switching compensating factor C
HScope be-50%～50%.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, above-mentioned adjustment step-length R
0, R
HBe the angle after rounding.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, above-mentioned iterations N
tWith the continuous measurement times N can be identical also can be different, number of times can be 3～5 times, said blanking time T
cScope be 1～4 the week or 1～6 month, the scope of said every section length of testing speech T is 8～24 hours.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, the sub-district of above-mentioned like environment classification is and adjacent area like its environment facies.
Preferred as the method for above-mentioned a kind of flexibly setting beam width of omni-directionally transmitting channel, wherein, in the above-mentioned steps 401, calculation plot covers the edge actual signal and is weaker than minimum value S
1Ratio be L
L, be better than maximum S
2Ratio L
H, if L
L>=L
H, C
1>0, otherwise C
1<0.
The present invention adopts the beneficial effect of technique scheme to be: because the present invention adopts the smart antenna of many array elements in the TD-SCDMA system; Need not change network antenna; Through system being tested accordingly or according to network performance index; Can be continuously dynamically be provided with or adjust the beamwidth of each omni-directionally transmitting channel flexibly, make the base station can confirm the beamwidth with the desirable omni-directionally transmitting channel of environment facies coupling continuously dynamically, thereby reach the requirement of network fully the flexible covering in sub-district.Compared with prior art, of the present invention producing effect is embodied in:
1. in the prior art, antenna its beamwidth when dispatching from the factory is set to fixed value, and this just makes antenna relatively poor to the adaptability of network environment, and the change of environment need be changed antenna, and the cost of network operation is very high.The present invention then effectively overcomes this shortcoming; It can realize being provided with flexibly or adjusting dynamically continuously the beam angle of each omni-directionally transmitting channel; Thereby significantly improved the adaptability of antenna to network environment; Need not change antenna; Also can be to the change of network environment; Dynamically adjust the beam angle of each omni-directionally transmitting channel continuously, reach network, obviously reduced the cost of network operation the requirement that the sub-district covers flexibly;
2. prior art makes antenna beamwidth and environmental requirement not to mate completely owing to can not adjust the beamwidth of omni-directionally transmitting channel continuously, and it is bigger that complete network satisfies the difficulty that covers requirement.The present invention can be provided with or adjust dynamically the beamwidth of each omni-directionally transmitting channel continuously flexibly; Make the base station can be continuously confirm the beamwidth with the desirable omni-directionally transmitting channel of environment facies coupling dynamically, thereby reach the requirement that network covers the sub-district flexibly fully.
3. the present invention also can make many array-element antenna adapt to the characteristics of different network environments more, thereby has reduced the requirement to the special parameter of product, makes that the selection of product is more flexible.
4. adopt method to set up of the present invention simultaneously, can also avoid longer, influence the shortcoming of network service quality, thereby better improve network service quality owing to changing the antenna cycle in the prior art.
Description of drawings
Fig. 1 is an intelligent antenna beam forming principle sketch map;
Fig. 2 is the beamwidth sketch map of the omni-directionally transmitting channel of conventional smart antenna;
Fig. 3 is that the beamwidth of employing adjustable omni-directionally transmitting channel of the present invention is the sketch map of 30 degree;
Fig. 4 is that employing adjustable beam width of omni-directionally transmitting channel of the present invention is the sketch map of 65 degree;
Fig. 5 is the flow chart of the inventive method.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is done further to introduce in detail, but not as to qualification of the present invention.
Many array-element antenna beam forming principle schematic as shown in Figure 1 comprises aerial array, beam forming network and algorithm controls unit.The algorithm controls unit is according to user's position, and the requirement of the horizontal beam width of downlink wave beam generates the signal weighting vector { W on each array element of antenna
0, W
1, W
2... W
n, these weight vectors multiply each other with transmitting through the beam forming network, form the amplitude-phase various signals after, again through the A/D conversion with send receiving element and deliver to the antenna row that shake and send.The signal of different amplitude-phases is superposition aloft, and signal strength signal intensity can be strengthened on desired orientation, and signal strength signal intensity can weaken even offset on other directions, thereby forms the signal beam of desired width.For the common signal channel of theaomni-directional transmission, conventional way is the horizontal beam width index according to antenna product, and fixing launches.
The flow chart of the inventive method as shown in Figure 5; Networking person can be according to characteristics such as the landform of actual environment, landforms, buildings; Varying environment is reduced several kinds of typical environment, like dense city, common city, suburbs and counties under the jurisdiction of a large city, highway, rural area, mountain area, lake surface and ocean etc.Suitable antenna omnidirectional send channel wave beam main lobe width is selected in every kind of environmental requirement for use.In NMS, should form the antenna omnidirectional send channel wave beam main lobe width data storehouse to different typical environment, be example with common city, adopting lobe width usually is that 65 ° antenna covers (as shown in Figure 4).After the site is confirmed basically, according to the density of surrounding buildings thing, highly, factors such as street width; Investigate the characteristic of local networks signal reflex, refraction and loss; Confirm the typical environment that it is affiliated,, confirm the demand on signal quality in the cell coverage area simultaneously according to the requirement of the network planning.Again corresponding data are input to network management system,, in database, select corresponding omni-directionally transmitting channel wave beam main lobe width by the classification of network management system according to typical environment.As being example with the dense city, possible lobe width is 30 °～45 ° (as shown in Figure 3).Network management system again with this information as one of basic configuration information of base station, through RNC with the NBAP agreement or adopt other communication protocols such as File Transfer Protocol, SNMP, through Iub interface or inner Operation and Maintenance interface informing base station.When adopting the NBAP agreement, can in cell setup message flow, carry main lobe information.After the base station receives arrangement angles, calculate the weight vector of the formation respective angles that is used for each array element of antenna, and exist in the memory, and directly control phase shifter, the wave beam forming of the omni-directionally transmitting channel wave beam being fixed according to the lobe width of above-mentioned setting.
Broadcast singal is launched according to normal power in the base station; In the base station signal overlay area; Through single station coverage test, measure the wireless parameters such as signal strength signal intensity, path loss, signal carrier/interface ratio in each place in this zone, the data map of drawing this regional signal quality.Delimit the cell edge part in the cell coverage area simultaneously, confirm the strength range [S that the signal in the cell edge part should reach
1, S
2].Again with this data map input base station, the prospective quality of measurement data and this regional signal is compared, obtain that signal strength signal intensity is weaker than minimum value S in the sampling point of cell edge part
1Ratio be L
L, be better than the ratio L of maximum S2
H, if L
L>=L
H, set C according to certain proportion
1>0, otherwise C
1<0.The step-length R that the omni-beam width need be adjusted is calculated in the base station
0=A
0* C
1, on the basis of original beamwidth, widen angle R
0Carry out theaomni-directional transmission.Adopt the method for drive test then, the change situation that signal covers in the test actual environment, inspection L
L, L
HWhether reach the reservation requirement.If meet the demands, the result is then exported in the base station, and the informing network management system; If backlog demand, then proceed adjustment, reach maximum times after, stop adjustment, the report of output adjustment.
In the base station equipment normal course of operation, every at a distance from set time T
c, like 1 to 4 week or 1 to 6 months even year interval, NMS is added up this sub-district handover success rate P in the N section time continuously
HWith the handoff failure reason, the times N of continuous measurement and the times N of adjustment
tCan be identical, also can be different, generally be advisable with 3～5 times.Every section time span is made as T, and the length of T was advisable with 8～24 hours.More every section P that time T is interior
HWith handover success rate desired value P
HT, if at least P in the N section time
H>=P
HT, then switch compensating factor C
H=0, adjustment finishes; Otherwise analyze the handoff failure reason, the table tennis switching if most of handoff failure is between cell-of-origin and Target cell causes, then can be according to P
HAnd P
HTDifference and the relation of coverage, confirm to switch compensating factor C
H<0, otherwise C
H>0.
The step-length R that the omni-beam width need be adjusted is calculated in the base station
H=A * C
H(R
HThrough rounding), on the basis of original beamwidth, widen angle R
HCarry out theaomni-directional transmission.This sub-district handover success rate P of NMS in the statistics T time
H, if meet the demands, the output result; If backlog demand, NMS provide this sub-district operation warning information.The base station passes to the NMS storage with adjusted beamwidth, and adjustment finishes.
If because environmental change, as the city develop into dense city, this often runs under existence conditions.This beamwidth that just need suitably reduce theaomni-directional transmission is readjusted antenna direction, lobe width to adapt to radio wave attenuation and the angle spread that refraction causes in the intensive environment.With reference to above-mentioned implementing procedure, again the weights of each bay are adjusted, to realize the omni-directionally transmitting channel wave beam lobe width and the lobe directions of suitable theaomni-directional transmission, to reach the purpose that satisfies matched environment.
The above is merely preferred embodiment of the present invention, only in order to technical scheme of the present invention to be described, is not to be used for limiting practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed among the protection range of claim of the present invention.
Claims (12)
1. the method for a flexibly setting beam width of omni-directionally transmitting channel is characterized in that this method adopts the smart antenna of many array elements, dynamically is provided with continuously or the adjustment beam width of omni-directionally transmitting channel, specifically may further comprise the steps:
Step 1, confirm sub-district beam width of omni-directionally transmitting channel initial value A
0
Signal covering quality in step 2, the test actual environment;
Step 3, according to the expection requirement of cell signal covering quality, whether the signal covering quality test result that appraisal procedure 2 obtains arrives the expection requirement, if reach the covering requirement, just exports the result, gets into step 5; If do not reach requirement, get into step 4;
Step 4, many array element of employing smart antenna are adjusted the beamwidth of sub-district omni-directionally transmitting channel, specifically may further comprise the steps:
Step 401, calculation plot cover the edge actual signal and do not reach the ratio L that expection requires
L, L
H, according to L
L, L
HConfirm to cover compensating factor C
1
The adjustment step-length R of beam width of omni-directionally transmitting channel is calculated in step 402, base station
0=A
0* C
1, adjustment back beam width of omni-directionally transmitting channel A=A
0+ R
0
Signal covering quality in step 403, the test actual environment;
Step 404 judges whether to reach the covering requirement, if reach the covering requirement, then exports the result, gets into step 5; Adjust number of times as if backlog demand and reach maximum times N
tInferior, then export the result, get into step 5; If backlog demand and adjustment number of times do not reach maximum times N
tInferior, then adjustment once more;
Some cycles T is normally moved in step 5, base station
c, NMS is regularly added up the handover success rate and the handoff failure reason of sub-district, compares with the handover success rate desired value, if there is handover success rate to occur more than or equal to the situation of handover success rate desired value, then adjustment finishes; Otherwise, should analyze the handoff failure reason, and, confirm to switch compensating factor C according to both difference
HAnd the adjustment cell coverage area, again handover success rate is carried out timing and add up and compare with the handover success rate desired value, if then export the result more than or equal to the handover success rate desired value, adjustment finishes, otherwise, get into step 6;
Step 6, NMS provide this sub-district operation warning information.
2. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 1 is characterized in that said step 1 may further comprise the steps:
Step 101, basis will be built the characteristic of website surrounding environment, confirm the typical environment classification that it is affiliated;
Step 102, NMS are that beam width of omni-directionally transmitting channel initial value A is selected at this station according to environment category and covering requirement
0, and inform the base station;
Step 103, in base station equipment, according to A
0, calculate the weights W that is used for each array element of antenna
i, i=1....n,, wherein n is a bay quantity; The base station is according to A
0, with many array-element antenna transmissions need be in the sub-district channel of theaomni-directional transmission.
3. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 2 is characterized in that said step 5 may further comprise the steps:
Step 501, NMS are added up this sub-district handover success rate P in the N section time continuously
H, every section time span is made as T, relatively N P
HWith handover success rate desired value P
HT
Step 502, if the N section time at least P
H＞=P
HT, switch compensating factor C
H=0, adjustment finishes, otherwise gets into step 503;
Step 503, analysis handoff failure reason, the table tennis switching if most of handoff failure is between cell-of-origin and Target cell causes, according to P
HAnd P
HTDifference, confirm to switch compensating factor C
H＜0, otherwise C
H＞0;
Step 504, base station adjustment beam width of omni-directionally transmitting channel, adjustment step-length R
H=A * C
H, adjustment back beamwidth A=A+R
H,
Step 505, this sub-district handover success rate P of NMS in the statistics T time
H, if meet the demands, the output result; If backlog demand gets into step 6.
4. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 3 is characterized in that when the initial construction of network, it is characterized in that said step 1 may further comprise the steps:
Step 101, basis will be built the characteristic of website surrounding environment, confirm the typical environment classification that it is affiliated;
Step 102, NMS are that beam width of omni-directionally transmitting channel initial value A is selected at this station according to environment category and covering requirement
0, and inform the base station;
Step 103, in base station equipment, according to A
0, calculate the weights W that is used for each array element of antenna
i, i=1....n,, wherein n is a bay quantity; The base station is according to A
0, with many array-element antenna transmissions need be in the sub-district channel of theaomni-directional transmission.
5. according to the method for each described a kind of flexibly setting beam width of omni-directionally transmitting channel of claim 1 to 4, it is characterized in that said beamwidth initial value A
0, be rule of thumb to be worth or reference class is obtained like the settings of the sub-district of environment category.
6. according to the method for each described a kind of flexibly setting beam width of omni-directionally transmitting channel of claim 1 to 4; It is characterized in that before the said step 3; Also comprise step 300: delimit cell coverage area and cell edge part, confirm the signal strength range [S in the cell edge part
1, S
2].
7. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 3 is characterized in that said covering compensating factor C
1With switching compensating factor C
HScope be-50%～50%.
8. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 3 is characterized in that said adjustment step-length R
0, R
HBe the angle after rounding.
9. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 3 is characterized in that said maximum times N
tIdentical or different with continuous timing statistics section N, number of times is 3～5 times, and the scope of said every section time span T is 8～24 hours.
10. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 1 is characterized in that said some cycles T
cScope be 1～4 the week or 1～6 month.
11., it is characterized in that the sub-district of said like environment classification is and adjacent area like its environment facies according to the method for claim 2 or 4 described a kind of flexibly setting beam width of omni-directionally transmitting channel.
12. the method for a kind of flexibly setting beam width of omni-directionally transmitting channel according to claim 6 is characterized in that in the said step 401, calculation plot covers the edge actual signal and is weaker than minimum value S
1Ratio be L
L, be better than maximum S
2Ratio L
H, if L
L＞=L
H, C
1＞0, otherwise C
1＜0.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724684A (en) * | 2012-07-02 | 2012-10-10 | 中国科学技术大学 | Same-frequency networking method adopting vertical coverage |
| CN104244273B (en) * | 2013-06-09 | 2018-06-08 | 普天信息技术研究院有限公司 | A kind of method of Fast back-projection algorithm broadcast beam of smart antenna |
| WO2015090353A1 (en) * | 2013-12-16 | 2015-06-25 | Huawei Technologies Co., Ltd. | Methods and devices for adjusting beam width in a wireless communication system |
| CN105281818B (en) * | 2015-09-08 | 2018-05-15 | 工业和信息化部电信研究院 | A kind of multi-antenna beam figuration test method |
| CN110048755B (en) * | 2019-04-09 | 2023-03-24 | 深圳大学 | Millimeter wave communication method and communication system |
| CN112020077B (en) * | 2019-05-30 | 2022-06-10 | 华为技术有限公司 | Communication method and device |
| CN113540831B (en) * | 2020-04-17 | 2023-01-13 | 中国移动通信有限公司研究院 | Method for adaptively adjusting beam width and antenna |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599138A (en) * | 2004-07-28 | 2005-03-23 | 西安海天天线科技股份有限公司 | Four-polarization six-sector array omnidirectional antenna |
| CN1866620A (en) * | 2005-05-18 | 2006-11-22 | 普天信息技术研究院 | Method for adaptively regulating intelligent antenna wave beam width |
-
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1599138A (en) * | 2004-07-28 | 2005-03-23 | 西安海天天线科技股份有限公司 | Four-polarization six-sector array omnidirectional antenna |
| CN1866620A (en) * | 2005-05-18 | 2006-11-22 | 普天信息技术研究院 | Method for adaptively regulating intelligent antenna wave beam width |
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| JP特开2004-247922A 2004.09.02 |
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