CN102143500A - Method and device for configuring cell bandwidth - Google Patents
Method and device for configuring cell bandwidth Download PDFInfo
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- CN102143500A CN102143500A CN2010191140215A CN201019114021A CN102143500A CN 102143500 A CN102143500 A CN 102143500A CN 2010191140215 A CN2010191140215 A CN 2010191140215A CN 201019114021 A CN201019114021 A CN 201019114021A CN 102143500 A CN102143500 A CN 102143500A
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Abstract
The embodiment of the invention discloses a method and device for configuring the cell bandwidth, which can be used to flexibly plan the system bandwidth of each cell and suitable for frequency spectrum resources with any width. Natural isolation of the resources is utilized to allocate frequency resources, thus each cell can use own exclusive or relatively exclusive frequency resources preferentially.
Description
Technical field
The embodiment of the invention relates to communication technical field, particularly a kind of bandwidth of cell collocation method and equipment.
Background technology
TD-LTE (Time Division-Synchronous Code Division Multiple Access LongTerm Evolution, the Long Term Evolution of TD SDMA) as a kind of advanced person's technology, need system improving peak data rate, cell edge speed, the availability of frequency spectrum, and be conceived to reduce operation and networking cost aspect further improves, for making the user can obtain the experience of " Always Online (always online) ", needs reduce the time delay of control and user plane simultaneously.This system must and existing system (2G/2.5G/3G) coexistence.
For this reason, existing system need be made change aspect a lot:
Wireless access network (Radio Access Network, RAN) side, will by CDMA technology change into can be more effective OFDM (Orthogonal FrequencyDivision Multiplexing, the orthogonal frequency division modulated) technology disturbed of antagonism broadband system multipath.
The OFDM technology comes from the sixties in 20th century, constantly improves thereafter and development, along with the development of signal processing technology, is used widely in fields such as digital broadcasting, DSL and WLAN (wireless local area network) after the nineties.The OFDM technology has anti-multipath and disturbs, realizes supporting simply, flexibly advantages such as different bandwidth, the efficient self-adapted scheduling of the high support of the availability of frequency spectrum, is the following 4G redundancy technique of generally acknowledging.
For further improving spectrum efficiency, MIMO (Multiple-Input Multiple-Out-put, many inputs/many outputs) technology also becomes the essential technology of LTE.
The MIMO technology is utilized the space channel characteristic of multiaerial system, can transmit a plurality of data flow simultaneously, thereby effectively improves data rate and spectrum efficiency.
In order to reduce the time delay of control and user plane, (chain of command postpones less than 100ms to satisfy low time delay, user plane time delay is less than 5ms) requirement, the structure of present NodeB-RNC-CN must obtain simplifying, RNC will not exist as physical entity, and NodeB will have the partial function of RNC, become eNodeB, undertaken netted interconnectedly between eNodeB by X2 interface, be linked among the CN.The variation of this system will have influence on the change of the network architecture, and SAE (evolution of system architecture) is also underway, and 3GPP is also planning for the smooth evolution of RAN/CN simultaneously.
As the demand of LTE, the evolution of the evolution of TDD system and FDD system is carried out synchronously.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
TD-LTE mainly contains following two kinds of typical networking modes when frequency planning:
Prior art 1: as shown in Figure 1, frequency duplex factor as one is N (N is the integer greater than 1).Different frequency ranges is adopted in each sub-district, and presence of intercell interference is very little, and real network planning is simple, but the frequency efficiency of whole network is lower.
Prior art 2: as shown in Figure 2, frequency duplex factor as one is 1.Identical frequency range is adopted in each sub-district, and the overall frequency utilance is higher, but presence of intercell interference is bigger, and particularly edge customer is subjected to serious interference, must suppress to disturb in conjunction with ICIC modes such as (Inter-Cell Interference Coordination), optimizes network.
Summary of the invention
The embodiment of the invention discloses a kind of bandwidth of cell collocation method and equipment, can plan the system bandwidth of each sub-district flexibly, be applicable to the frequency spectrum resource of any width, branch in frequency resource is mixed, can utilize the natural isolation of resource, the frequency resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district.
For achieving the above object, the embodiment of the invention provides a kind of bandwidth of cell collocation method on the one hand, is applied to comprise that described cell cluster comprises a plurality of neighbor cells, it is characterized in that, specifically may further comprise the steps in the communication system of at least one cell cluster:
According to the neighbor cell quantity in the cell cluster, total bandwidth is divided into the bandwidth subclass of respective numbers, there is overlapping bandwidth in each described bandwidth subclass;
The pairing bandwidth of described each bandwidth subclass is distributed to corresponding neighbor cell respectively.
Preferably, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
Preferably, the pairing bandwidth of described each bandwidth subclass is distributed to respectively after the corresponding neighbor cell, is also comprised:
When this cell load is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When this cell load surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
On the other hand, the embodiment of the invention also provides a kind of bandwidth of cell inking device, is applied to comprise that described cell cluster comprises a plurality of neighbor cells, specifically comprises in the communication system of at least one cell cluster:
Divide module, be used for the neighbor cell quantity according to cell cluster, total bandwidth is divided into the bandwidth subclass of respective numbers, there is overlapping bandwidth in each described bandwidth subclass;
Distribution module, the pairing bandwidth of each bandwidth subclass that is used for described division module is divided is distributed to corresponding neighbor cell respectively.
Preferably, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
Preferably, described device also comprises detection module, is used for detecting this cell load state, and judging the relation between this cell load state and the default load threshold after giving corresponding neighbor cell with the pairing allocated bandwidth of described each bandwidth subclass.
Preferably, described device also comprises scheduler module, is used for:
When described detection module detects this cell load and is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When described detection module detects this cell load and surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, can plan the cell frequency programme flexibly, be applicable to the system bandwidth of any width, mix at the branch of frequency resource, can utilize the natural isolation of resource, the band resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the present invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the band width configuration schematic diagram of a kind of TD-LTE of the prior art when frequency planning;
Fig. 2 is the band width configuration schematic diagram of another kind of TD-LTE of the prior art when frequency planning;
Fig. 3 is the schematic flow sheet of a kind of bandwidth of cell collocation method of embodiment of the invention proposition;
Fig. 4 is the schematic diagram of the concrete bandwidth dividing mode of the bandwidth of cell collocation method under a kind of concrete application scenarios of embodiment of the invention proposition;
Fig. 5 is the schematic diagram of the concrete bandwidth dividing mode of the bandwidth of cell collocation method under the another kind of concrete application scenarios of embodiment of the invention proposition;
Fig. 6 is the schematic diagram of the concrete bandwidth dividing mode of the bandwidth of cell collocation method under the another kind of concrete application scenarios of embodiment of the invention proposition;
Fig. 7 is the structural representation of a kind of bandwidth of cell inking device of embodiment of the invention proposition.
Embodiment
In order to solve problems of the prior art, a kind of bandwidth of cell collocation method that the embodiment of the invention proposes, with the sets definition of adjacent sub-district together is a cell cluster, total available bandwidth is divided into a plurality of subclass, wherein, the bandwidth of any two subclass can be overlapped, also can be not overlapping fully, after having assigned, give a plurality of sub-districts in the cell cluster each subset allocation respectively.
This programme of cell frequency flexibly is applicable to the system bandwidth of any width, mixes at the branch of frequency resource, can utilize the natural isolation of resource, and the band resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district; When load was heavier, the bandwidth of getting separately can be used in each sub-district, and may be thought of as this moment needs powerful Cell Edge User to distribute " monopolizing " frequency band to avoid interference.
This mode has had elasticity on the basis of complete orthogonal frequency division multiplexed, all configurations all can be predicted, and network can not change dynamically, and the complexity of dispatching algorithm is also not too large simultaneously, network planning, the configurable frequency proportions of network optimization and edge power, means are also more.
As shown in Figure 3, the schematic flow sheet of a kind of bandwidth of cell collocation method that proposes for the embodiment of the invention, this method is applied to comprise that described cell cluster comprises a plurality of neighbor cells, specifically may further comprise the steps in the communication system of at least one cell cluster:
Step S301, according to the neighbor cell quantity in the cell cluster, total bandwidth is divided into the bandwidth subclass of respective numbers, there is overlapping bandwidth in each described bandwidth subclass.
Wherein, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
Step S302, the pairing bandwidth of described each bandwidth subclass is distributed to corresponding neighbor cell respectively.
In concrete application scenarios, the pairing allocated bandwidth of described each bandwidth subclass to after the corresponding neighbor cell, is also comprised:
Detect the load condition of each sub-district;
When this cell load is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When this cell load surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, can plan the cell frequency programme flexibly, be applicable to the system bandwidth of any width, mix at the branch of frequency resource, can utilize the natural isolation of resource, the band resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district.
Below, further combined with concrete example, the technical scheme of the embodiment of the invention is described.
When supposing that total bandwidth is the 30MHz bandwidth, can carry out the network planning according to following scheme:
The 30M bandwidth is divided into 3 parts according to aforementioned principle, every part of 20MHz, and overlap in twos, give three sectors distribution portion wherein then respectively with the site.
Concrete dividing mode as shown in Figure 4.
If the system bandwidth resource is 40MHz or 50MHz, also can use as a same reason, can divide the mode of frequency such as Fig. 5 and Fig. 6, because the increase of bandwidth, it is evaded interference capability and can get a promotion, dependence to ICIC algorithm and dispatching algorithm can further reduce, thereby obtains more excellent systematic function.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, can plan the cell frequency programme flexibly, be applicable to the system bandwidth of any width, mix at the branch of frequency resource, can utilize the natural isolation of resource, the band resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district.
In order to realize the technical scheme of the embodiment of the invention, the embodiment of the invention has also proposed a kind of bandwidth of cell inking device, is applied to comprise that described cell cluster comprises a plurality of neighbor cells in the communication system of at least one cell cluster, its structural representation specifically comprises as shown in Figure 7:
Wherein, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
In concrete application scenarios, said apparatus also comprises detection module 73, be connected with described division module 71, be used for after giving corresponding neighbor cell the pairing allocated bandwidth of described each bandwidth subclass, detect this cell load state, and judge the relation between this cell load state and the default load threshold.
Further, also comprise scheduler module 74, be used for:
When described detection module 73 detects this cell load and is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When described detection module 73 detects this cell load and surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
Compared with prior art, the embodiment of the invention has the following advantages:
By using the technical scheme that the embodiment of the invention proposed, can plan the cell frequency programme flexibly, be applicable to the system bandwidth of any width, mix at the branch of frequency resource, can utilize the natural isolation of resource, the band resource of oneself monopolizing or monopolizing is relatively preferentially used in each sub-district.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, the technical scheme of the embodiment of the invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the embodiment of the invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the accompanying drawing or flow process might not be that the enforcement embodiment of the invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be the several concrete enforcement scene of the embodiment of the invention, still, the embodiment of the invention is not limited thereto, any those skilled in the art can think variation all should fall into the protection range of the embodiment of the invention.
Claims (7)
1. bandwidth of cell collocation method is applied to comprise that described cell cluster comprises a plurality of neighbor cells, it is characterized in that, specifically may further comprise the steps in the communication system of at least one cell cluster:
According to the neighbor cell quantity in the cell cluster, total bandwidth is divided into the bandwidth subclass of respective numbers, there is overlapping bandwidth in each described bandwidth subclass;
The pairing bandwidth of described each bandwidth subclass is distributed to corresponding neighbor cell respectively.
2. the method for claim 1 is characterized in that, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
3. the method for claim 1 is characterized in that, the pairing bandwidth of described each bandwidth subclass is distributed to respectively after the corresponding neighbor cell, also comprises:
When this cell load is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When this cell load surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
4. bandwidth of cell inking device is applied to comprise that described cell cluster comprises a plurality of neighbor cells, it is characterized in that, specifically comprises in the communication system of at least one cell cluster:
Divide module, be used for the neighbor cell quantity according to cell cluster, total bandwidth is divided into the bandwidth subclass of respective numbers, there is overlapping bandwidth in each described bandwidth subclass;
Distribution module, the pairing bandwidth of each bandwidth subclass that is used for described division module is divided is distributed to corresponding neighbor cell respectively.
5. device as claimed in claim 4 is characterized in that, each described bandwidth subclass is specially:
Each described bandwidth subclass all has the bandwidth of coincidence with other one or several bandwidth subclass; Or,
A plurality of in each described bandwidth subclass have the coincidence bandwidth.
6. device as claimed in claim 4, it is characterized in that, also comprise detection module, be used for after giving corresponding neighbor cell the pairing allocated bandwidth of described each bandwidth subclass, detect this cell load state, and judge the relation between this cell load state and the default load threshold.
7. device as claimed in claim 6 is characterized in that, also comprises being used for scheduler module:
When described detection module detects this cell load and is lower than default load threshold, preferentially use this sub-district and the non-overlapped frequency of other neighbor cells;
When described detection module detects this cell load and surpasses default load threshold, preferentially use the non-overlapped frequency of this sub-district and other neighbor cells to dispatch the high business of qos requirement.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
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| CN2010191140215A CN102143500A (en) | 2010-02-03 | 2010-02-03 | Method and device for configuring cell bandwidth |
| JP2012551476A JP5536235B2 (en) | 2010-02-03 | 2011-01-31 | Frequency reuse networking method and apparatus |
| KR1020127022337A KR101468789B1 (en) | 2010-02-03 | 2011-01-31 | Networking method and device for frequency reuse |
| PCT/CN2011/000186 WO2011095060A1 (en) | 2010-02-03 | 2011-01-31 | Networking method and device for frequency reuse |
| US13/576,715 US20130021999A1 (en) | 2010-02-03 | 2011-01-31 | Networking method and device for frequency reuse |
| EP11739339.7A EP2533557B1 (en) | 2010-02-03 | 2011-01-31 | Networking method and device for frequency reuse |
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| CN2010191140215A CN102143500A (en) | 2010-02-03 | 2010-02-03 | Method and device for configuring cell bandwidth |
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| CN2010191140215A Pending CN102143500A (en) | 2010-02-03 | 2010-02-03 | Method and device for configuring cell bandwidth |
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| CN113475041A (en) * | 2019-03-06 | 2021-10-01 | 罗伯特·博世有限公司 | Method and device for operating a TSN communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109191962A (en) * | 2018-10-11 | 2019-01-11 | 四川生学教育科技有限公司 | A kind of optimization method and system under fixed-bandwidth with frequency frame per second |
| CN113475041A (en) * | 2019-03-06 | 2021-10-01 | 罗伯特·博世有限公司 | Method and device for operating a TSN communication system |
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Application publication date: 20110803 |