CN101562816A - Method and device for frequency reuse - Google Patents
Method and device for frequency reuse Download PDFInfo
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- CN101562816A CN101562816A CNA2009100851578A CN200910085157A CN101562816A CN 101562816 A CN101562816 A CN 101562816A CN A2009100851578 A CNA2009100851578 A CN A2009100851578A CN 200910085157 A CN200910085157 A CN 200910085157A CN 101562816 A CN101562816 A CN 101562816A
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Abstract
The invention discloses a method for frequency reuse. The method comprises the following steps that: all frequency spectrums are divided into six parts which are marked as B1, B2, B3, B4, B5 and B6 respectively; the combination of the B1 and the B4 is marked as A1, the combination of the B2 and the B5 is marked as A2, the combination of the B3 and the B65 is marked as A3, the combination of the B1 and the B2 is marked as C1, the combination of the B3 and the B4 is marked as C2, and the combination of the B51 and the B6 is marked as C3; a cell of a relay cellular network is divided into three sectors; a base station uses frequency ranges from A1 to A3 for the three sectors respectively; and a relay station uses the frequency range C3 in the sector where the base station uses the frequency range A1, the relay station uses the frequency range C2 in the sector where the base station uses the frequency range A2, the relay station uses the frequency range C1 in the sector where the base station uses the frequency range A3. The invention also discloses a device for frequency reuse, which comprises a frequency spectrum division unit and a frequency spectrum distribution unit. By adopting the method and the device, the frequency spectrum efficiency of the system can be improved.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of method and device of channeling.
Background technology
OFDMA (Orthogonal Frequency Division Multiple Access, orthogonal frequency division multiplexing multiple access insert) as the 4th generation cellular system one of key technology, be faced with high data rate, targets such as spectral efficient and ubiquitous covering.But at cell edge, because the channel impairments that abominable communication environments (as path loss, shadow fading and presence of intercell interference) is caused makes that these targets are difficult to realize under traditional cellular network architecture.Studies show that by place via node in cellular network, these channel impairments can use collaborative transmission technology to be eliminated.The relay cellular network framework can provide better capacity, covers and reliability, and does not need too much deployment cost.Yet relaying technique also has the shortcoming of himself, needs extra Radio Resource as repeated link.Therefore, a good frequency reuse plan is most important concerning relay cellular network.
The frequency reuse plan of prior art mainly contains two kinds, first kind is based on the hypothesis that does not have interference in the sub-district: guarantee quadrature in the sub-district by the time slot division or in same time slot delimitation fixed frequency spectrum, the both need do frequency spectrum and plan and evade presence of intercell interference, the advantage of this scheme is effectively to manage presence of intercell interference, do not have to disturb in the sub-district, shortcoming is not utilize the characteristics of junction network, and spectrum efficiency is lower.Second kind is based on the hypothesis of disturbing in the sub-district: manage in the sub-district with the different directions frequency of utilization at different frequency range by relay station and base station and disturb, advantage is to have improved spectrum efficiency, shortcoming is to have sacrificed multi-user diversity, and interference management is effective inadequately in the sub-district.
Summary of the invention
The embodiment of the invention provides a kind of method and device of channeling, to improve the spectrum efficiency of system.
The embodiment of the invention provides a kind of method of channeling, comprising: all frequency spectrums are divided into six parts, are designated as B1-B6, with B1 and B4 combination, be designated as A1, with B2 and B5 combination, be designated as A2,, be designated as A3 B3 and B6 combination, again with B1 and B2 combination, be designated as C1,, be designated as C2 B3 and B4 combination, with B5 and B6 combination, be designated as C3; A relay cellular network is divided into three sectors for a short time, the base station is used frequency range A1-A3 respectively three sectors, relay station in the sector of base station use frequency range A1 uses frequency range C3, relay station in the sector of base station use frequency range A2 uses frequency range C2, and the relay station in the sector of base station use frequency range A3 uses frequency range C1.
The embodiment of the invention provides a kind of device of channeling, comprising: the spectrum division unit is used to carry out spectrum division; The spectrum allocation may unit is used to carry out spectrum allocation may.
The present invention compares with existing scheme, can improve spectrum efficiency.
Description of drawings
Fig. 1 is a spectrum division schematic diagram in the embodiment of the invention;
Fig. 2 is a spectrum allocation may schematic diagram in the embodiment of the invention;
Fig. 3 is a channeling device schematic diagram in the embodiment of the invention.
Embodiment
The embodiment of the invention provides a kind of method of channeling.
As shown in Figure 1, spectrum division mainly comprises:
All frequency spectrums are divided into six parts, are designated as B1-B6,, be designated as A1,, be designated as A2,, be designated as A3, with B1 and B2 combination, be designated as C1 again,, be designated as C2,, be designated as C3 B5 and B6 combination with B3 and B4 combination with B3 and B6 combination with B2 and B5 combination with B1 and B4 combination.
As shown in Figure 2, spectrum allocation may mainly comprises:
A relay cellular network is divided into three sectors for a short time, the base station is used frequency range A1-A3 respectively three sectors, relay station in the sector of base station use frequency range A1 uses frequency range C3, relay station in the sector of base station use frequency range A2 uses frequency range C2, and the relay station in the sector of base station use frequency range A3 uses frequency range C1.
As shown in Figure 3, the channeling device comprises: spectrum division unit 301, spectrum allocation may unit 302.
Spectrum allocation may unit 302 is used to carry out spectrum allocation may.
It should be noted last that: above embodiment is the unrestricted technological thought of the present invention in order to explanation only, does not break away from any modification or partial replacement of spirit of the present invention and method scope, and it all is encompassed in the middle of the claim scope of the present invention.
Claims (4)
1, a kind of method of channeling is characterized in that, comprising:
All frequency spectrums are divided into six parts, are designated as B1-B6,, be designated as A1,, be designated as A2,, be designated as A3, with B1 and B2 combination, be designated as C1 again,, be designated as C2,, be designated as C3 B5 and B6 combination with B3 and B4 combination with B3 and B6 combination with B2 and B5 combination with B1 and B4 combination;
A relay cellular network is divided into three sectors for a short time, the base station is used frequency range A1-A3 respectively three sectors, relay station in the sector of base station use frequency range A1 uses frequency range C3, relay station in the sector of base station use frequency range A2 uses frequency range C2, and the relay station in the sector of base station use frequency range A3 uses frequency range C1.
2, the method for claim 1 is characterized in that, also comprises:
The relay cellular network sub-district is encircled and outer shroud in can being divided in form, and interior ring mainly comprises direct transmission user, and outer shroud then mainly comprises trunk subscriber, ring user's communications in mainly be responsible for the base station, and relay station mainly is responsible for the outer shroud user's communications.
3, the method for claim 1 is characterized in that, also comprises:
Disturb in the sub-district, the relay station that is placed in each sector uses the directive antenna identical with this sector base stations.
4, a kind of device of channeling is characterized in that, comprising:
The spectrum division unit is used to carry out spectrum division;
The spectrum allocation may unit is used to carry out spectrum allocation may.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100851578A CN101562816A (en) | 2009-06-03 | 2009-06-03 | Method and device for frequency reuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100851578A CN101562816A (en) | 2009-06-03 | 2009-06-03 | Method and device for frequency reuse |
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| Publication Number | Publication Date |
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| CN101562816A true CN101562816A (en) | 2009-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100851578A Pending CN101562816A (en) | 2009-06-03 | 2009-06-03 | Method and device for frequency reuse |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011085513A1 (en) * | 2010-01-13 | 2011-07-21 | 上海贝尔股份有限公司 | Soft frequency reuse method and base station using the method |
| CN102300215A (en) * | 2011-08-03 | 2011-12-28 | 北京工业大学 | Multi-hop wireless network relay station frequency multiplexing method |
| CN103220676A (en) * | 2013-04-09 | 2013-07-24 | 京信通信系统（中国）有限公司 | Frequency multiplexing method and system, and equipment |
| US9332558B2 (en) | 2011-01-25 | 2016-05-03 | Huawei Technologies Co., Ltd. | Method for allocating radio resources in relay cell, base station, and system |
-
2009
- 2009-06-03 CN CNA2009100851578A patent/CN101562816A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011085513A1 (en) * | 2010-01-13 | 2011-07-21 | 上海贝尔股份有限公司 | Soft frequency reuse method and base station using the method |
| CN102577469B (en) * | 2010-01-13 | 2015-01-21 | 上海贝尔股份有限公司 | Soft frequency reuse method and base station using the method |
| US9332558B2 (en) | 2011-01-25 | 2016-05-03 | Huawei Technologies Co., Ltd. | Method for allocating radio resources in relay cell, base station, and system |
| CN102300215A (en) * | 2011-08-03 | 2011-12-28 | 北京工业大学 | Multi-hop wireless network relay station frequency multiplexing method |
| CN103220676A (en) * | 2013-04-09 | 2013-07-24 | 京信通信系统（中国）有限公司 | Frequency multiplexing method and system, and equipment |
| CN103220676B (en) * | 2013-04-09 | 2015-08-19 | 京信通信系统（中国）有限公司 | A kind of frequency multiplexing method, equipment and system |
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Open date: 20091021 |