CN103313262A - Wireless network coverage backup method and device - Google Patents
Wireless network coverage backup method and device Download PDFInfo
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- CN103313262A CN103313262A CN2012100595925A CN201210059592A CN103313262A CN 103313262 A CN103313262 A CN 103313262A CN 2012100595925 A CN2012100595925 A CN 2012100595925A CN 201210059592 A CN201210059592 A CN 201210059592A CN 103313262 A CN103313262 A CN 103313262A
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Abstract
The invention provides a wireless network coverage backup method and device which adopts a manner of RRU mutual backup between nearby base stations to realize the network coverage backup. During a backup process, a site does not need to be encrypted, a business does not need to be interrupted and a double frequency spectrum requirement of a double network is not needed. Therefore, a lot of problems in the existing wireless network coverage backup method can be effectively conquered by the present invention of the wireless network coverage backup method and device.
Description
Technical field
The present invention relates to wireless communication technology, particularly relate to a kind of wireless network and cover backup method and device.
Background technology
Different from public telecommunication network, enterprise network is mostly directly related with the production and operation of enterprise, even relevant with the security of the lives and property, reliability requirement to network is higher, on the very little not even impact of the impact of business, therefore need to cover wireless network and carry out redundancy backup when requiring network element device to break down.
Wireless network commonly used covers backup method at present two kinds: single net interweaves and the two nets of same covering.
Fig. 1 is the schematic diagram that single net interweaves, as shown in the figure, it realizes that principle is mainly: originally realizing increasing a website in the middle of two websites (covering strictly according to the facts shown in the ellipse) that cover continuously, cover shown in the imaginary ellipse line, realize the overlapping covering of network.If there is one of them website to break, its former and later two websites 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 mutually backup or the wherein part network element backup of two nets of RRU, BBU and core net, such 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; Website is close, switches more frequently, and the call drop performance is switched in impact; Under the special screne, cover such as leaking cable, the breaks of leaking cable are increased one times; Station spacing shorten to covering power half, the residential quarter is too little, causes the bad application of algorithm of the distinguishing cell center and peripherals such as Inter-Cell Interference Coordination (ICIC).
And mainly in two net backup scenarios have two problems with covering, the one, can cause service disconnection when network element breaks down, in have no progeny could gravity treatment to on another network of throwing the net that covers Double-level Reticulated; Two is two to throw the net and work simultaneously, must alien frequencies for fear of disturbing, need like this 2 times frequency resource, and such as the 10MHz work bandwidth, just need the 20MHz frequency spectrum, this is generally difficult to satisfy.
This shows, existing wireless network covers backup method and exists and encrypt the problems that website brings or need interrupting service and the problem such as the frequency resource demand is 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 device, can overcome prior wireless network and cover the problems that backup scenario exists.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of wireless network covers backup method, and described method comprises:
A, for each website in two adjacent sites, a RRU of this website is split into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website, and 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 half of the number of vias of described RRU before splitting;
B, for each described website, the base station side under described website is merged into a residential quarter with all paths that share two sub-RRU of this website antenna-feedback system.
A kind of wireless network covers back-up device, and described device comprises:
The RRU split cells, be used for each website for two adjacent sites, a RRU of this website is split into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website, and 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 half of the number of vias of described RRU before splitting;
Baseband processing unit is used for for each described website, and the base station side under described website is merged into a residential quarter with all paths that share two sub-RRU of this website antenna-feedback system.
In sum, the wireless network that the present invention proposes covers backup method and device, the mode that RRU backs up mutually between the employing adjacent base station realizes the backup of the network coverage, owing to not needing to encrypt website, interrupting service during backup, therefore the double spectrum requirement that does not also need two nets has effectively overcome prior wireless network and has covered the problems that backup method exists.
Description of drawings
Fig. 1 is existing single net backup schematic diagram that interweaves;
Fig. 2 is the method flow diagram of the embodiment of the invention one;
Fig. 3 is the mutually connected mode schematic diagrames of the front RRU of backup of two adjacent sites;
Fig. 4 is that phase neighboring station RRU backs up connection diagram mutually;
Fig. 5 is the mutually base band realization schematic diagram of backup of phase neighboring station RRU;
Fig. 6 is the apparatus structure schematic diagram of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is that the mode that RRU backs up mutually between the employing adjacent base station realizes the network coverage backup of single net mode.Like this, can avoid on the one hand encrypting the problems due to the website, on the other hand owing to being single net backup, can automatically becoming single RRU during single damages among two RRU and cover, can not cause professional call drop, also not have two double spectrum requirements of netting.
Fig. 2 is that the wireless network of the embodiment of the invention one covers the backup method flow chart, and as shown in Figure 2, described method mainly comprises:
In this step, each RRU to adjacent two websites splits respectively, then a sub-RRU of a sub-RRU and its adjacent sites is shared 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, like this, can utilize a sub-RRU after the fractionation to carry out the covering backup of neighbors, utilize a sub-RRU after neighbors splits to carry out the covering backup of this website.
Here, a RRU is split into two sub-RRU, and the concrete grammar that two sub-RRU share the antenna-feedback system of a website is grasped by those skilled in the art, do not repeat them here.
Here, all paths that share two sub-RRU of this website antenna-feedback system are merged into a residential quarter, can guarantee when a sub-RRU has broken, another sub-RRU normal operation, the business that do not affect is carried out, though slightly reduce on the performance, because coverage planning is undertaken by single sub-RRU covering power, gone bad a RRU and also can satisfy performance requirement.Specifically how all paths of two sub-RRU are merged into a residential quarter, by those skilled in the art are grasped, do not repeat them here.
Find out from top technical scheme, if when planning, the number of vias of a RRU only is two, when then adopting such scheme to back up, if a RRU in two adjacent websites is out of order, then two websites all only remain one-sided covering, and may not satisfy service needed this moment.Like this, preferably, the number of vias of the RRU before splitting is configured to more than 4, so that when a RRU breaks down, each residential quarter can both guarantee that bilateral covers.Thereby can strengthen professional reliability.
In addition, can find out from above-described embodiment, the RRU of each site configuration need to support the function that splits in the present invention, and the sub-RRU that splits out can carry out with the sub-RRU that other RRU split out the residential quarter and merges configuration.
The below is described further specific implementation of the present invention take two adjacent base stations having respectively 4 passage RRU as example.
Fig. 3 is the mutually connected modes of the front RRU of backup of two adjacent sites.As shown in Figure 3,4 passages (path) of each RRU connect each 2path antenna or other transmission cable of the left and right sides, residential quarter, as leaking cable.
In order to carry out the mutual backup of 2 RRU, 2 RRU only stay 2path (i.e. sub-RRU) to connect two antennas or the cable of this residential quarter, all the other 2path (being another sub-RRU) are connected to two antennas or the cable of adjacent sites, and connected mode as shown in Figure 4.Be can visually see by Fig. 4, when a RRU fault, two residential quarters can be by intact another RRU service, and difference is to cover the path number will reduce to original half, illustrated example is to reduce to 2path from residential quarter 4path, and one-sided covering is then reduced to 1path by 2path.
After having carried out mutual backup, the cell characteristics that still will keep single net, so the path number from 2 RRU that covers same website need to be merged into a residential quarter, that 4 path from 2 RRU are merged into 1 residential quarter in Fig. 4 example, and these 4 path require BBU and RRU to do following realization from different RRU:
As shown in Figure 5, BBU need to merge into 1 residential quarter with path1,2 (port carries out the path1-4 numbering from the top down) and the path1,2 of RRU2 of RRU1, cover diagram north side website, with the path3 of RRU1,4 and the path3,4 of RRU2 merge into 1 residential quarter and cover diagram southern side website.
Fig. 6 is that the wireless network corresponding with said method covers the back-up device structural representation, and as shown in Figure 6, described device mainly comprises:
The RRU split cells, be used for each website for two adjacent sites, a RRU of this website is split into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website, and 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 half of the number of vias of described RRU before splitting.
Baseband processing unit is used for for each described website, and the base station side under described website is merged into a residential quarter with all paths that share two sub-RRU of this website antenna-feedback system.
Preferably, to be further used for number of vias be that RRU more than 4 carries out described fractionation to described RRU split cells.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a wireless network covers backup method, it is characterized in that, described method comprises:
A, for each website in two adjacent sites, a RRU of this website is split into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website, and 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 half of the number of vias of described RRU before splitting;
B, for each described website, the base station side under described website is merged into a residential quarter with all paths that share two sub-RRU of this website antenna-feedback system.
2. method according to claim 1 is characterized in that, the number of vias of the RRU before the described fractionation is more than 4.
3. a wireless network covers back-up device, it is characterized in that, described device comprises:
The RRU split cells, be used for each website for two adjacent sites, a RRU of this website is split into two sub-RRU, wherein, a sub-RRU of a sub-RRU and its adjacent sites shares the antenna-feedback system of this website, and 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 half of the number of vias of described RRU before splitting;
Baseband processing unit is used for for each described website, and the base station side under described website is merged into a residential quarter with all paths that share two sub-RRU of this website antenna-feedback system.
4. device according to claim 3 is characterized in that, it is that RRU more than 4 carries out described fractionation that described RRU split cells is further used for number of vias.
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| Application Number | Priority Date | Filing Date | Title |
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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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| CN201210059592.5A CN103313262B (en) | 2012-03-08 | 2012-03-08 | A kind of wireless network covers backup method and device |
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| CN103313262A true CN103313262A (en) | 2013-09-18 |
| CN103313262B CN103313262B (en) | 2016-05-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648118A (en) * | 2013-11-25 | 2014-03-19 | 华为技术服务有限公司 | Method and device for antenna feeder combination |
| CN106507386A (en) * | 2015-09-07 | 2017-03-15 | 中兴通讯股份有限公司 | Super cell generation method, method for splitting, device and communication system |
| CN108156609A (en) * | 2016-12-02 | 2018-06-12 | 中兴通讯股份有限公司 | Cell combining, method for splitting, device and base station |
Citations (3)
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| 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 |
-
2012
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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 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103648118A (en) * | 2013-11-25 | 2014-03-19 | 华为技术服务有限公司 | Method and device for antenna feeder combination |
| 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 |
| CN106507386A (en) * | 2015-09-07 | 2017-03-15 | 中兴通讯股份有限公司 | Super cell generation method, method for splitting, device and communication system |
| WO2017041501A1 (en) * | 2015-09-07 | 2017-03-16 | 中兴通讯股份有限公司 | Super cell generation method, splitting method, generation apparatus, and splitting apparatus, communication system, and computer-readable storage medium |
| CN108156609A (en) * | 2016-12-02 | 2018-06-12 | 中兴通讯股份有限公司 | Cell combining, method for splitting, device and base station |
| 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 |
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| CN103313262B (en) | 2016-05-04 |
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Granted publication date: 20160504 |