CN103313262B - A kind of wireless network covers backup method and device - Google Patents
A kind of wireless network covers backup method and device Download PDFInfo
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- CN103313262B CN103313262B CN201210059592.5A CN201210059592A CN103313262B CN 103313262 B CN103313262 B CN 103313262B CN 201210059592 A CN201210059592 A CN 201210059592A CN 103313262 B CN103313262 B CN 103313262B
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Abstract
The invention provides a kind of wireless network and cover backup method and device, adopt the mode of the mutual backup of RRU between adjacent base station to realize the backup of the network coverage. During due to backup, do not need to encrypt website, interrupting service, do not need the double spectrum requirement of two nets yet, therefore adopt the present invention can effectively overcome prior wireless network and cover the problems that backup method exists.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of wireless network and cover backup method and dressPut.
Background technology
Different from public telecommunication network, enterprise network is mostly directly related with the production and operation of enterprise, even with lifeLife property safety is relevant, higher to the reliability requirement of network, when requiring network element device to break downOn the very little not even impact of the impact of business, therefore need wireless network to cover and carry out redundancy backup.
At present conventional wireless network covers backup method two kinds: single net interweaves and the same pair nets that cover.
Fig. 1 is the schematic diagram that single net interweaves, and as shown in the figure, it is realized principle and is mainly: originally canIn the middle of realizing two websites (covering strictly according to the facts shown in ellipse) that cover continuously, increase a website, coverAs shown in imaginary ellipse line, realize the overlapping covering of network. If there is one of them website to break, its front and back twoIndividual website can reach continuous covering, can not cause service disconnection.
Be exactly to additionally arrange Double-level Reticulated with covering two nets, according to network element backup needs, can carry out RRU, BBUAnd backup or the wherein part network element backup mutually of two nets of core net, as RRU.
In single net interweaves backup scenario, need to encrypt website, like this, will cause existing following problems:Many one times of website, the website of building a station selection is difficult, the expense of building a station is high; Website is close, disturbs more serious; WebsiteClose, to switch more frequently, call drop performance is switched in impact; Under special screne, cover such as leaking cable, to leakingThe breaks of cable increase one times; Station spacing shortens to covering power half, and community is too little, causes communityBetween the bad application of algorithm of the distinguishing cell center and peripheral such as interference coordination (ICIC).
And there are two problems with main in covering two net backup scenarios, the one, network element break down timeTime can cause service disconnection, in have no progeny could gravity treatment to throwing the net on network with another that covers Double-level Reticulated; The 2nd,Two throw the net works simultaneously, for fear of disturbing necessary alien frequencies, needs like this frequency resource of 2 times, such as10MHz work bandwidth, just needs 20MHz frequency spectrum, and this is generally more difficult satisfied.
As can be seen here, existing wireless network covers the problems that backup method exists encryption website to bringOr need the problems such as interrupting service and frequency resource demand are many.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of wireless network to cover backup method and dressPut, can overcome prior wireless network and cover the problems that backup scenario exists.
In order to achieve the above object, the technical scheme that the present invention proposes is:
A kind of wireless network covers backup method, and described method comprises:
A, for the each website in two adjacent sites, a RRU of this website is split into two sonsRRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website,Another sub-RRU of another sub-RRU and its adjacent sites shares the antenna-feedback system of described adjacent sites;The number of vias that each described sub-RRU has is the half of the number of vias of described RRU before splitting;
B, for each described website, the base station side under described website, will share this website antenna-feedback systemAll paths of two sub-RRU merge into Yi Ge community.
A kind of wireless network covers back-up device, and described device comprises:
RRU split cells, for the each website for two adjacent sites, by a RRU of this websiteSplit into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares our stationThe antenna-feedback system of point, another sub-RRU of another sub-RRU and its adjacent sites shares described phase neighboring stationThe antenna-feedback system of point; Number of vias that each described sub-RRU has is the number of vias of described RRU before splittingHalf;
Baseband processing unit, for for each described website, the base station side under described website, will be total toMerge into Yi Ge community with all paths of two sub-RRU of this website antenna-feedback system.
In sum, the wireless network that the present invention proposes covers backup method and device, adopts adjacent base stationBetween RRU mutually the mode of backup realize the backup of the network coverage, during due to backup, do not need to encrypt website,Interrupting service, does not need two double spectrum requirements of netting yet, and has therefore effectively overcome prior wireless network and has coveredThe problems that lid backup method exists.
Brief description of the drawings
Fig. 1 is existing single net backup schematic diagram that interweaves;
Fig. 2 is the method flow diagram of the embodiment of the present invention one;
Fig. 3 is the two adjacent sites connected mode schematic diagrames of the front RRU of backup mutually;
Fig. 4 is that phase neighboring station RRU backs up connection diagram mutually;
Fig. 5 is that the base band that phase neighboring station RRU backs up mutually realizes schematic diagram;
Fig. 6 is the apparatus structure schematic diagram of the embodiment of the present invention one.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing and concreteThe present invention is described in further detail for embodiment.
Core concept of the present invention is to adopt the mode that between adjacent base station, RRU backs up mutually to realize single netThe network coverage backup of mode. Like this, can avoid on the one hand encrypting the problems due to website, anotherOn the one hand owing to being single net backup, in two RRU, can automatically become single RRU covering when single damages,Can not cause business call drop, not have the double spectrum requirement of two nets yet.
Fig. 2 is that the wireless network of the embodiment of the present invention one covers backup method flow chart, as shown in Figure 2,Described method mainly comprises:
Step 201, for the each website in two adjacent sites, a RRU of this website is split intoTwo sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the sky of this websiteFeedback system, another sub-RRU of another sub-RRU and its adjacent sites shares the sky of described adjacent sitesFeedback system; The number of vias that each described sub-RRU has is the half of the number of vias of described RRU before splitting.
In this step, each RRU of adjacent two websites is split respectively, then by a sub-RRUShare the antenna-feedback system of this website with a sub-RRU of its adjacent sites, another sub-RRU is adjacent with itAnother of website RRU shares the antenna-feedback system of described adjacent sites, like this, can utilize after fractionationA sub-RRU carries out the covering backup of neighbors, utilizes a sub-RRU after neighbors splits to carry out basisThe covering backup of website.
Here, a RRU is split into two sub-RRU, and two sub-RRU are shared to a websiteThe concrete grammar of antenna-feedback system by those skilled in the art are grasped, do not repeat them here.
Step 202, for each described website, the base station side under described website, will share this website skyAll paths of two sub-RRU of feedback system are merged into Yi Ge community.
Here, all paths of two sub-RRU that share this website antenna-feedback system are merged into Yi Ge community,Can guarantee that, in the time that a sub-RRU has broken, another sub-RRU normally works, not impact business is carried out,Though slightly reduce in performance, because coverage planning is undertaken by single sub-RRU covering power, gone bad oneIndividual RRU also can meet performance requirement. Concrete how all paths of two sub-RRU are merged into one littleDistrict, by those skilled in the art are grasped, does not repeat them here.
From finding out technical scheme above, if in the time of planning, the number of vias of a RRU is only two,Adopt such scheme while backing up, if a RRU in two adjacent websites is out of order, twoIndividual website all only remains one-sided covering, now may not meet service needed. Like this, preferably, canThe number of vias of RRU before splitting is configured to more than 4, so that in the time that a RRU breaks down, eachCommunity can guarantee that bilateral covers. Thereby can strengthen the reliability of business.
In addition, from above-described embodiment, can find out, the RRU of each site configuration need to support to tear open in the present inventionThe function of dividing, and the sub-RRU that the sub-RRU splitting out can split out with other RRU carries out communityMerge configuration.
Below taking two adjacent base stations respectively with 4 passage RRU as example, to concrete reality of the present inventionNow be described further.
Fig. 3 is the two adjacent sites connected modes of the front RRU of backup mutually. As shown in Figure 3,4 of each RRUIndividual passage (path) connects each 2path antenna or other transmission cable of the left and right sides, community, as leaked cable.
In order to carry out the mutual backup of 2 RRU, 2 RRU only stay 2path (i.e. a sub-RRU) to connectTwo antennas or the cable of Jie Zhe community, all the other 2path (being another sub-RRU) are connected to two of adjacent sitesAntenna or cable, connected mode as shown in Figure 4. Be can visually see by Fig. 4, when a RRU fault, two communities can be served by another intact RRU, and difference is to cover path number will reduce to original half,Illustrated example Shi Cong community 4path reduces to 2path, and one-sided covering is reduced to 1path by 2path.
Carry out after mutual backup, still will keep the cell characteristics of single net, so need to will cover coming of same websiteMerging into Yi Ge community from the path of 2 RRU number, is by 4 from 2 RRU in Fig. 4 examplePath merges into 1 community, and these 4 path are from different RRU, require under BBU and RRU workThe realization of face:
As shown in Figure 5, BBU need to by the path1 of RRU1,2, (port carries out path1-4 from the top downNumbering) and the path1,2 of RRU2 merge into 1 community, cover diagram north side website, by RRU1'sPath3,4 and the path3,4 of RRU2 merge into 1 community and cover diagram southern side website.
Fig. 6 is that the wireless network corresponding with said method covers back-up device structural representation, as shown in Figure 6,Described device mainly comprises:
RRU split cells, for the each website for two adjacent sites, by a RRU of this websiteSplit into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares our stationThe antenna-feedback system of point, another sub-RRU of another sub-RRU and its adjacent sites shares described phase neighboring stationThe antenna-feedback system of point; Number of vias that each described sub-RRU has is the number of vias of described RRU before splittingHalf.
Baseband processing unit, for for each described website, the base station side under described website, will be total toMerge into Yi Ge community with all paths of two sub-RRU of this website antenna-feedback system.
Preferably, to be further used for number of vias be that 4 above RRU enter to described RRU split cellsThe described fractionation of row.
In sum, these are only preferred embodiment of the present invention, be not intended to limit of the present inventionProtection domain. Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, changeEnter etc., within all should being included in protection scope of the present invention.
Claims (4)
1. wireless network covers a backup method, it is characterized in that, described method comprises:
A, for the each website in two adjacent sites, a RRU of this website is split into two sonsRRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website,Another sub-RRU of another sub-RRU and its adjacent sites shares the antenna-feedback system of described adjacent sites;The number of vias that each described sub-RRU has is the half of the number of vias of described RRU before splitting;
B, for each described website, the base station side under described website, will share this website antenna-feedback systemAll paths of two sub-RRU merge into Yi Ge community.
2. method according to claim 1, is characterized in that, the path of the RRU before described fractionationNumber is more than 4.
3. wireless network covers a back-up device, it is characterized in that, described device comprises:
RRU split cells, for the each website for two adjacent sites, by a RRU of this websiteSplit into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares our stationThe antenna-feedback system of point, another sub-RRU of another sub-RRU and its adjacent sites shares described phase neighboring stationThe antenna-feedback system of point; Number of vias that each described sub-RRU has is the number of vias of described RRU before splittingHalf;
Baseband processing unit, for for each described website, the base station side under described website, will be total toMerge into Yi Ge community with all paths of two sub-RRU of this website antenna-feedback system.
4. device according to claim 3, is characterized in that, described RRU split cells is furtherCarry out described fractionation for the RRU more than number of vias is 4.
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| CN201210059592.5A CN103313262B (en) | 2012-03-08 | 2012-03-08 | A kind of wireless network covers backup method and device |
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| CN103313262B true CN103313262B (en) | 2016-05-04 |
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| CN103648118B (en) * | 2013-11-25 | 2017-04-12 | 华为技术服务有限公司 | Method and device for antenna feeder combination |
| CN106507386B (en) * | 2015-09-07 | 2021-08-24 | 中兴通讯股份有限公司 | Super cell generation method, super cell splitting method, super cell generation device, super cell splitting device and communication system |
| CN108156609B (en) * | 2016-12-02 | 2022-08-19 | 中兴通讯股份有限公司 | Cell merging and splitting method, device and base station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709983A1 (en) * | 1994-10-26 | 1996-05-01 | International Business Machines Corporation | Allocation method and apparatus for reusing network resources in a wireless communication system |
| CN2852539Y (en) * | 2005-10-31 | 2006-12-27 | 中兴通讯股份有限公司 | Device for multiple base station sharing aerial feed and base station system |
| CN101854632A (en) * | 2009-03-31 | 2010-10-06 | 中国移动通信集团河北有限公司 | Wireless communication system and frequency allocation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0709983A1 (en) * | 1994-10-26 | 1996-05-01 | International Business Machines Corporation | Allocation method and apparatus for reusing network resources in a wireless communication system |
| CN2852539Y (en) * | 2005-10-31 | 2006-12-27 | 中兴通讯股份有限公司 | Device for multiple base station sharing aerial feed and base station system |
| CN101854632A (en) * | 2009-03-31 | 2010-10-06 | 中国移动通信集团河北有限公司 | Wireless communication system and frequency allocation method thereof |
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