CN101442751B - Method, apparatus and system for disposing antenna - Google Patents
Method, apparatus and system for disposing antenna Download PDFInfo
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- CN101442751B CN101442751B CN2008102247747A CN200810224774A CN101442751B CN 101442751 B CN101442751 B CN 101442751B CN 2008102247747 A CN2008102247747 A CN 2008102247747A CN 200810224774 A CN200810224774 A CN 200810224774A CN 101442751 B CN101442751 B CN 101442751B
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Abstract
The invention discloses an antenna disposing method, device and system comprising: disposing a first group directional antenna and a second directional antenna on same antenna tower positioned at adjacent area of a first cell and a second cell; the coverage of first directional antenna being at first cell of high speed trunk line, the coverage of second directional antenna being at second cell adjacent to the first cell of high speed trunk line; controlling directional antenna gain of first group directional antenna whose radiation direction points to the first cell larger than gain of directional antenna of the second group whose radiation direction points to the second cell; and controlling gain of directional antenna of the second group whose radiation direction points to the second cell larger than gain of first group directional antenna whose radiation direction points to the second cell. The method, device and system of the invention expand switching area of adjacent cells for covering high speed trunk line.
Description
Technical field
The present invention relates to the mobile communication network planning field in the communications field, relate in particular to a kind of antenna arrangement method and device and system that covers the high-spe-ed trunk line zone.
Background technology
Travelling carriage is when crossing over the sub-district of spatial division in mobile communication system, for the continuous to-be that ensures conversation is carried out handover, the switch area is the overlay region of two sub-districts switching, in the switch area, finish sub-district gravity treatment and switching, therefore, the planning of the switch area between the neighbor cell is most important to the communication quality of whole system, especially for the sub-district that covers high-spe-ed trunk line, because the translational speed of the travelling carriage in this zone is faster, and is therefore higher to the requirement of switch area.
At present, in the high-spe-ed trunk line zone, usually adopt distributing antenna system, promptly adopt along high-spe-ed trunk line and arrange many group antennas for the planning of a sub-district, the overlay area of many group antennas constitutes this sub-district jointly, as shown in Figure 1, arrange three groups of antennas on three antenna tower (quantity of antenna sets can also have other selections according to actual conditions) respectively along high-spe-ed trunk line, every group of antenna comprises two directional antennas, the radiation direction of two directional antennas is respectively along the opposite both direction of high-spe-ed trunk line, and the overlay area of six roots of sensation antenna constitutes first sub-district jointly.As satisfying this condition, also can there be certain correlation in two of every group of antenna separate as far as possible placements of directional antenna under the situation of conditions permit.
Adopt antenna system shown in Figure 1 to plan a plurality of sub-districts along high-spe-ed trunk line, the overlapping region of neighbor cell is the switch area between these two sub-districts, Figure 2 shows that the switch area schematic diagram between the neighbor cell, the zone that zone shown in the figure covers for the adjacent antenna in antenna that covers first sub-district and the antenna that covers second sub-district, the switch area is the overlay region of first sub-district and second sub-district, comprises the switch area that switches to the switch area of second sub-district from first sub-district and switch to first sub-district from second sub-district.Switch area length shown in Fig. 2 is for switching to the length of the switch area of second sub-district along the high-spe-ed trunk line direction from first sub-district, be overlay region half along the length of high-spe-ed trunk line direction, therefore, adopt this switch area planning mode, switch area length maximum is no more than the cascade unit of a direction of a sky alignment.
Development along with high-speed railway, magnetic suspension train etc., the translational speed of travelling carriage that is positioned at the high-spe-ed trunk line zone is more and more faster, because finishing the sub-district switching, travelling carriage needs certain hour, therefore the raising of mobile station speed is to the corresponding raising that requires of the length of the switch area between the neighbor cell, adopt present existing planning mode, the platform that often is moved is not also finished cell switch process, has left the switch area, and then interrupt communication, reduced communication quality.
Summary of the invention
The embodiment of the invention provides a kind of antenna arrangement method and device and system, Zone switched in order between the neighbor cell that enlarge to cover high-spe-ed trunk line, and reduce investment outlay.
The embodiment of the invention provides a kind of antenna arrangement method, comprising:
The first group of directional antenna and the overlay area that the overlay area are positioned at high-spe-ed trunk line first sub-district are positioned at along second group of directional antenna of described high-spe-ed trunk line second sub-district adjacent with described first sub-district, are arranged on the same antenna tower that is positioned at described first sub-district and the described second sub-district neighboring region;
Control radiation direction in described first group of directional antenna and point to the gain of the directional antenna of described first sub-district, make this gain point to the gain of the directional antenna of described first sub-district greater than radiation direction in described second group of directional antenna; And
Control radiation direction in described second group of directional antenna and point to the gain of the directional antenna of described second sub-district, make this gain point to the gain of the directional antenna of described second sub-district greater than radiation direction in described first group of directional antenna.
The invention process also provides a kind of antenna tower, comprising: first group of directional antenna, second group of directional antenna and control unit;
The overlay area of described first group of directional antenna is positioned at high-spe-ed trunk line first sub-district;
The overlay area of described second group of directional antenna is positioned at along described high-spe-ed trunk line second sub-district adjacent with described first sub-district;
Described control unit is used for controlling the gain that described first group of directional antenna radiation direction pointed to the directional antenna of described first sub-district, makes this gain point to the gain of the directional antenna of described first sub-district greater than radiation direction in described second group of directional antenna; And control the gain that radiation direction in described second group of directional antenna is pointed to the directional antenna of described second sub-district, make this gain point to the gain of the directional antenna of described second sub-district greater than radiation direction in described first group of directional antenna.
The embodiment of the invention provides a kind of antenna in cell system again, is applied to the sub-district that the overlay area is a high-spe-ed trunk line, comprises a first kind antenna tower at least;
Described first kind antenna tower be positioned at this sub-district with along the neighboring region of the described high-spe-ed trunk line neighbor cell adjacent with this sub-district; Described first kind antenna tower comprise: first group of directional antenna, second group of directional antenna and control unit;
The overlay area of described first group of directional antenna is positioned at this sub-district;
The overlay area of described second group of directional antenna is positioned at described neighbor cell;
Described control unit is used for controlling the gain that described first group of directional antenna radiation direction pointed to the directional antenna of this sub-district, makes this gain point to the gain of the directional antenna of this sub-district greater than radiation direction in described second group of directional antenna; And control the gain that radiation direction in described second group of directional antenna is pointed to the directional antenna of described neighbor cell, make this gain point to the gain of the directional antenna of described neighbor cell greater than radiation direction in described first group of directional antenna.
Beneficial effect of the present invention comprises:
The method that the embodiment of the invention provides, the first group of directional antenna and the overlay area that the overlay area are positioned at high-spe-ed trunk line first sub-district are positioned at along second group of directional antenna of high-spe-ed trunk line second sub-district adjacent with first sub-district, are arranged on the same antenna tower that is positioned at first sub-district and the second sub-district neighboring region; Control radiation direction in first group of directional antenna and point to the gain of the directional antenna of first sub-district, make this gain point to the gain of the directional antenna of first sub-district greater than radiation direction in second group of directional antenna; And control the gain that radiation direction in second group of directional antenna is pointed to the directional antenna of second sub-district, make this gain point to the gain of the directional antenna of second sub-district greater than radiation direction in first group of directional antenna.Adopt the embodiment of the invention, owing on antenna tower, arranged the antenna that covers two sub-districts respectively, enlarged the overlay region of two sub-districts, promptly enlarged switch area between these two sub-districts along the length of high-spe-ed trunk line direction, can be approximately equal to the cascade unit of an antenna along the high-spe-ed trunk line direction; By the control antenna gain, can satisfy the requirement of the level of relevant sub-district when in the switch area, realizing switching simultaneously; And, on the basis of existing distributing antenna system, do not need to set up in addition antenna tower, only need on antenna tower in two adjacent antenna towers of neighbor cell, increase by one group of antenna, and the overlay area of this group antenna that increases is planned to adjacent sub-district and can realizes, carry out plot planning if redeploy antenna tower, also do not need to enlarge the distance of switch area, reach the purpose of reducing investment outlay by the distance of the antenna tower that further.
Description of drawings
Fig. 1 is a distributing antenna system schematic diagram of the prior art;
Fig. 2 is the switch area schematic diagram between the neighbor cell in the prior art;
A kind of antenna arrangement method flow chart that Fig. 3 provides for the embodiment of the invention;
Switch area schematic diagram in a kind of antenna arrangement method that Fig. 4 provides for the embodiment of the invention between the neighbor cell;
A kind of antenna tower structure schematic diagram that Fig. 5 provides for the embodiment of the invention;
A kind of antenna in cell system configuration schematic diagram that Fig. 6 provides for the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of antenna arrangement method, as shown in Figure 3, comprising:
Step S301, with first group of directional antenna and second group of directional antenna arrangement on same antenna tower.Wherein, the overlay area of first group of directional antenna is positioned at first sub-district, and the overlay area of second group of directional antenna is positioned at second sub-district; First sub-district and second sub-district are along adjacent any two sub-districts of high-spe-ed trunk line.
Radiation direction is pointed to the gain of the antenna of first sub-district in step S302, first group of directional antenna of control, makes this gain point to the gain of the directional antenna of first sub-district greater than radiation direction in second group of directional antenna.
Radiation direction is pointed to the gain of the antenna of second sub-district in step S303, second group of directional antenna of control, makes this gain point to the gain of the directional antenna of second sub-district greater than radiation direction in first group of directional antenna.
Above-mentioned steps S302 and step S303 do not have strict priority execution sequence, can carry out simultaneously yet.
The antenna arrangement method that the embodiment of the invention is provided is described in detail below.
Among the above-mentioned steps S301 with first group of directional antenna and second group of directional antenna arrangement on same antenna tower, illustrate as follows:
Referring to Fig. 4, when plot planning is carried out in the high-spe-ed trunk line zone, arrange at least two group directional antennas on the antenna tower in the neighboring region of two neighbor cells, wherein one group of directional antenna hypothesis comprises directional antenna 401 and directional antenna 402, another group directional antenna hypothesis comprises that directional antenna 404 and 405, two groups of directional antennas of directional antenna cover this two neighbor cells respectively.Be without loss of generality, for convenience of description, directional antenna 401 be set and directional antenna 402 is first group of directional antenna, cover first sub-district, the antenna that covers first sub-district also comprises all the other antennas 403; Directional antenna 404 is set and directional antenna 405 is second group of directional antenna, covers second sub-district, the antenna that covers second sub-district also comprises all the other antennas 406.
Wherein, in first group of directional antenna, the radiation direction of directional antenna 401 is pointed to second sub-district along high-spe-ed trunk line, and the radiation direction of directional antenna 402 is pointed to first sub-district along high-spe-ed trunk line; In second group of directional antenna, the radiation direction of directional antenna 404 is pointed to first sub-district along high-spe-ed trunk line, and the radiation direction of directional antenna 405 is pointed to second sub-district along high-spe-ed trunk line.Among other embodiment, also can every group directional antenna comprise directional antenna more than two.
All the other antennas 403 of directional antenna 401, directional antenna 402 and first sub-district can adopt in the prior art distributing antenna system as shown in Figure 1 to plan in the embodiment of the invention, and the overlay area of each antenna is common to constitute first sub-district.Wherein, all the other antennas 403 of first sub-district can be chosen as directional antenna, also can be chosen as omnidirectional antenna.
All the other antennas 406 of directional antenna 404, directional antenna 405 and second sub-district can adopt in the prior art distributing antenna system as shown in Figure 1 to plan in the embodiment of the invention, and the overlay area of each antenna is common to constitute second sub-district.Wherein, all the other antennas 406 of second sub-district can be chosen as directional antenna, also can be chosen as omnidirectional antenna.
Above-mentioned directional antenna can all can be realized the scheme that the embodiment of the invention provides for directed single-polarized antenna or directed dual polarized antenna.
When travelling carriage was realized switching in the switch area, the level of sub-district need satisfy:
When second sub-district switches to first sub-district, the level of first sub-district should be greater than the level of second sub-district in the switch area; In like manner, when first sub-district switches to second sub-district, the level of second sub-district should be greater than the level of first sub-district in the switch area.
Therefore, in above-mentioned steps S302, radiation direction is pointed to the gain of the antenna of first sub-district in first group of directional antenna of needs control, makes this gain point to the gain of the directional antenna of first sub-district greater than radiation direction in second group of directional antenna.In embodiment illustrated in fig. 4, because directional antenna 402 is antennas that radiation direction is pointed to first sub-district in first group of directional antenna, directional antenna 404 is directional antennas that radiation direction is pointed to first sub-district in second group of directional antenna, therefore needs the gain of the gain of control directional antenna 402 greater than directional antenna 404.
In like manner, in above-mentioned steps S303, radiation direction is pointed to the gain of the antenna of second sub-district in second group of directional antenna of needs control, makes this gain point to the gain of the directional antenna of second sub-district greater than radiation direction in first group of directional antenna.In embodiment illustrated in fig. 4, because directional antenna 405 is antennas that radiation direction is pointed to second sub-district in second group of directional antenna, directional antenna 401 is directional antennas that radiation direction is pointed to second sub-district in first group of directional antenna, therefore needs the gain of the gain of control directional antenna 405 greater than directional antenna 401.
The antenna arrangement method that adopts the above embodiment of the present invention to provide, as shown in Figure 4 as seen, the overlapping region of first sub-district and second sub-district is the overlay area of directional antenna 401 and directional antenna 404, the switch area comprises: switch to the switch area of second sub-district from first sub-district, covered by directional antenna 401; Switch to the switch area of first sub-district from second sub-district, cover by directional antenna 404.With the switch area that switches to second sub-district from first sub-district is example, this switch area is approximately the length of directional antenna 401 radiation scopes along the length of high-spe-ed trunk line, the maximum that can reach along the length of high-spe-ed trunk line for the switch area, compare along the length of high-spe-ed trunk line with switch area as shown in Figure 2, enlarged Zone switched between the neighbor cell.
Simultaneously, be positioned at the gain of the directional antenna 401 of first sub-district because the area of coverage is positioned at the gain of the directional antenna 405 of second sub-district greater than the area of coverage, can satisfy when first sub-district switches to second sub-district, the second sub-district level is higher than the requirement of the first sub-district level.In like manner, because the gain of directional antenna 402 that covers first sub-district greater than the gain of the directional antenna 404 that covers second sub-district, can be satisfied when second sub-district switches to first sub-district, the first sub-district level is higher than the requirement of the second sub-district level.
And, the above-mentioned antenna arrangement method that adopts the embodiment of the invention to provide, in the high-spe-ed trunk line zone, no matter be to transform the existing distributed antenna system, still redeploy antenna tower and carry out plot planning, do not need to set up in addition antenna tower, do not need to enlarge the distance of switch area yet, can reach the purpose of reducing investment outlay by the distance of original antenna tower that further.
Based on same inventive concept, according to the antenna arrangement method that the above embodiment of the present invention provides, correspondingly, another embodiment of the present invention also provides a kind of antenna tower, its structural representation comprises as shown in Figure 5: first group of directional antenna 501, second group of directional antenna 502 and control unit 503; Wherein:
The overlay area of first group of directional antenna 501 is positioned at high-spe-ed trunk line first sub-district;
The overlay area of second group of directional antenna 502 is positioned at along high-spe-ed trunk line second sub-district adjacent with first sub-district;
First group of directional antenna 501 and second group of directional antenna 502 are made up of two directional antennas respectively at least.
Above-mentioned directional antenna is directed single-polarized antenna or directed dual polarized antenna.
Based on same inventive concept, yet another embodiment of the invention also provides a kind of antenna in cell system, is applied to the sub-district that the overlay area is a high-spe-ed trunk line, and the concrete structure schematic diagram of antenna in cell system comprises a first kind antenna tower 601 as shown in Figure 6 at least; These first kind antenna tower 601 be positioned at this sub-district with along the neighboring region of the high-spe-ed trunk line neighbor cell adjacent with this sub-district, the concrete structure of these first kind antenna tower 601 comprises as shown in Figure 5: first group of directional antenna, second group of directional antenna and control unit; Wherein:
The overlay area of first group of directional antenna is positioned at this sub-district;
The overlay area of second group of directional antenna is positioned at neighbor cell;
Control unit is used for controlling the gain that first group of directional antenna radiation direction pointed to the directional antenna of this sub-district, makes this gain point to the gain of the directional antenna of this sub-district greater than radiation direction in second group of directional antenna; And the gain of controlling the directional antenna of radiation direction sensing neighbor cell in second group of directional antenna, make this gain point to the gain of the directional antenna of neighbor cell greater than radiation direction in first group of directional antenna.
Among other embodiment, above-mentioned antenna in cell system also comprises one or more second class antenna tower 602;
The second class antenna tower 602 are positioned at this sub-district; Antenna on the second class antenna tower 602 is directional antenna or omnidirectional antenna.
In sum, the scheme that the embodiment of the invention provides, the first group of directional antenna and the overlay area that the overlay area are positioned at high-spe-ed trunk line first sub-district are positioned at along second group of directional antenna of high-spe-ed trunk line second sub-district adjacent with first sub-district, are arranged on the same antenna tower that is positioned at first sub-district and the second sub-district neighboring region; Control radiation direction in first group of directional antenna and point to the directional antenna of first sub-district is pointed in the gain of the directional antenna of first sub-district greater than radiation direction in second group of directional antenna gain; And control radiation direction in second group of directional antenna and point to the directional antenna of second sub-district is pointed in the gain of the directional antenna of second sub-district greater than radiation direction in first group of directional antenna gain.Enlarged Zone switched between the neighbor cell that covers high-spe-ed trunk line, and reduced investment outlay.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. an antenna arrangement method is characterized in that, comprising:
The first group of directional antenna and the overlay area that the overlay area are positioned at high-spe-ed trunk line first sub-district are positioned at along second group of directional antenna of described high-spe-ed trunk line second sub-district adjacent with described first sub-district, are arranged on the same antenna tower that is positioned at described first sub-district and the described second sub-district neighboring region;
Control radiation direction in described first group of directional antenna and point to the gain of the directional antenna of described first sub-district, make this gain point to the gain of the directional antenna of described first sub-district greater than radiation direction in described second group of directional antenna; And
Control radiation direction in described second group of directional antenna and point to the gain of the directional antenna of described second sub-district, make this gain point to the gain of the directional antenna of described second sub-district greater than radiation direction in described first group of directional antenna.
2. the method for claim 1 is characterized in that, described first group of directional antenna and described second group of directional antenna are made up of two directional antennas respectively at least.
3. method as claimed in claim 2 is characterized in that, described directional antenna is directed single-polarized antenna or directed dual polarized antenna.
4. as the arbitrary described method of claim 1-3, it is characterized in that the overlay area is positioned at all the other antenna arrangement of described first sub-district on the one or more antenna tower that are positioned at described first sub-district; And
The overlay area is positioned at all the other antenna arrangement of described second sub-district on the one or more antenna tower that are positioned at described second sub-district.
5. method as claimed in claim 4 is characterized in that, described all the other antennas are directional antenna or omnidirectional antenna.
6. antenna tower is characterized in that, comprising: first group of directional antenna, second group of directional antenna and control unit;
The overlay area of described first group of directional antenna is positioned at high-spe-ed trunk line first sub-district;
The overlay area of described second group of directional antenna is positioned at along described high-spe-ed trunk line second sub-district adjacent with described first sub-district;
Described control unit is used for controlling the gain that described first group of directional antenna radiation direction pointed to the directional antenna of described first sub-district, makes this gain point to the gain of the directional antenna of described first sub-district greater than radiation direction in described second group of directional antenna; And control the gain that radiation direction in described second group of directional antenna is pointed to the directional antenna of described second sub-district, make this gain point to the gain of the directional antenna of described second sub-district greater than radiation direction in described first group of directional antenna.
7. antenna tower as claimed in claim 6 is characterized in that, described first group of directional antenna and described second group of directional antenna are made up of two directional antennas respectively at least.
8. antenna tower as claimed in claim 7 is characterized in that, described directional antenna is directed single-polarized antenna or directed dual polarized antenna.
9. an antenna in cell system is applied to the sub-district that the overlay area is a high-spe-ed trunk line, it is characterized in that, comprises a first kind antenna tower at least;
Described first kind antenna tower be positioned at this sub-district with along the neighboring region of the described high-spe-ed trunk line neighbor cell adjacent with this sub-district; Described first kind antenna tower comprise: first group of directional antenna, second group of directional antenna and control unit;
The overlay area of described first group of directional antenna is positioned at this sub-district;
The overlay area of described second group of directional antenna is positioned at described neighbor cell;
Described control unit is used for controlling the gain that described first group of directional antenna radiation direction pointed to the directional antenna of this sub-district, makes this gain point to the gain of the directional antenna of this sub-district greater than radiation direction in described second group of directional antenna; And control the gain that radiation direction in described second group of directional antenna is pointed to the directional antenna of described neighbor cell, make this gain point to the gain of the directional antenna of described neighbor cell greater than radiation direction in described first group of directional antenna.
10. system as claimed in claim 9 is characterized in that, also comprises one or more second class antenna tower;
The described second class antenna tower are positioned at this sub-district;
Antenna on the described second class antenna tower is directional antenna or omnidirectional antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102247747A CN101442751B (en) | 2008-12-29 | 2008-12-29 | Method, apparatus and system for disposing antenna |
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| CN2008102247747A CN101442751B (en) | 2008-12-29 | 2008-12-29 | Method, apparatus and system for disposing antenna |
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| CN101442751A CN101442751A (en) | 2009-05-27 |
| CN101442751B true CN101442751B (en) | 2010-12-01 |
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| CN2008102247747A Active CN101442751B (en) | 2008-12-29 | 2008-12-29 | Method, apparatus and system for disposing antenna |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102324958A (en) * | 2011-09-15 | 2012-01-18 | 上海大学 | Wireless communication method used for MIMO (multiple input multiple output) system under high-speed railway environment |
| CN103812584B (en) * | 2012-11-15 | 2015-11-11 | 中国移动通信集团河南有限公司 | A kind of system of selection of the antenna type of antenna feeder community altogether and device |
| US10141996B2 (en) * | 2015-12-13 | 2018-11-27 | Drone Racing League, Inc. | Communication system with distributed receiver architecture |
| DE102016221941A1 (en) * | 2016-10-13 | 2018-04-19 | Continental Teves Ag & Co. Ohg | Communication device for vehicle-to-X communication |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981550A (en) * | 2004-06-30 | 2007-06-13 | 艾利森电话股份有限公司 | Data processing in intra-site handover |
| CN1996786A (en) * | 2006-11-29 | 2007-07-11 | 北京邮电大学 | Novel wireless communication networking method based on the relay technology |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981550A (en) * | 2004-06-30 | 2007-06-13 | 艾利森电话股份有限公司 | Data processing in intra-site handover |
| CN1996786A (en) * | 2006-11-29 | 2007-07-11 | 北京邮电大学 | Novel wireless communication networking method based on the relay technology |
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