CN101083499A - Digital microwave grid communication system and method for realizing the same - Google Patents
Digital microwave grid communication system and method for realizing the same Download PDFInfo
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- CN101083499A CN101083499A CNA2007100291079A CN200710029107A CN101083499A CN 101083499 A CN101083499 A CN 101083499A CN A2007100291079 A CNA2007100291079 A CN A2007100291079A CN 200710029107 A CN200710029107 A CN 200710029107A CN 101083499 A CN101083499 A CN 101083499A
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Abstract
The invention publishes a digital microwave grid communications system. Each grid is composing of the frequency division duplex microwave grid equipment, which is a set of frequency division duplex microwave grid equipment. Using cross connection module demodulates three or more then three groups into the signal needed to connection baseband, and sends out another direction signal to multiplexing modules to carry on the multiple connections, the modulation, and to another direction; in each station except the end can sent the signal to three or more then three directions using identical carrier, and can receive the signal from three or more then three directions. The invention has reasonable structure, low cost, convenient maintenance, and has good function effect, and may substitute the existing product well; the invention has simple process and high efficiency.
Description
Technical field
The present invention relates to the digital microwave telecommunication technology, particularly a kind of digital microwave grid communication system and its implementation.
Background technology
Along with developing rapidly of mobile communication system (2G, 3G) and BWA, digital microwave transmission system is that to turn to town and country medium or short range communication be main to main application fields by traditional long distance line relay communication.Because the needs of ability that latticed (cellular) layout of mobile communication system (2G, 3G) and BWA and telecommunication transport network are anti-to be ruined (nature or artificial), make connection therebetween communications mode demand also gradually by the relay communication mode to latticed development.The conventional digital microwave transmission system of widely applying is made of the point-to-point microwave equipment of Frequency Division Duplexing (FDD) (FDD) now, is not desirable latticed communication system.
In the relay communication system that Frequency Division Duplexing (FDD) (FDD) point-to-point microwave equipment constitutes, every section point-to-point microwave equipment that link all is a pair of FDD, so-called " one jumps " microwave equipment.A microwave relay link (as Fig. 1 and A-a shown in Figure 5) is jumped microwave equipment by one and is constituted, and its reception carrier is operated in the P end of the high section of FDD, and the transmission carrier wave is operated in low section of FDD, and for explaining conveniently, we represent with capitalization when following description; The N end is exactly that reception carrier is operated in the low section of FDD so, and sends the high section that carrier wave is operated in FDD, represents with lowercase when following description.Fig. 1 or A-a microwave relay link shown in Figure 5, its A end station reception carrier is operated in the frequency fah of high section, sends the frequency fal that carrier wave is operated in low section; Its a end station is opposite with A end station, and reception carrier is operated in the frequency fal of low section, receives the fal carrier wave of sending out from A end station; A end station sends the frequency fah that carrier wave is operated in high section, and A end station receives the fah carrier wave of sending out from a end station.Microwave communication transmission system in the FDD frequency range of International Telecommunication Union suggestion is to be made of a plurality of point-to-point links.For example among Fig. 1 (among Fig. 5 too), one is the end station a of A-a link, another is the end station b of B-b link.Wherein, the end equipment that adopt at existing microwave communication transmission system end station as shown in Figure 2, each website in the system all is to be made of three covers end equipment shown in Figure 2 (to need quadruplet for Fig. 5 system, and can be by that analogy), as seen from Figure 2, this end equipment is is mainly connected and composed by baseband interface, time division multiplexing (TDM) multiple connection module, time division multiplexing (TDM) Demultiplexing module, modulation module, demodulation module, outdoor unit (ODU), public affair interface, monitoring module etc.; In the relay stations that utilize this traditional end equipment, the ODU unit modules of two cover end equipment all need to be provided with separately and independent use in the equipment separately, and such version and type of action just make the cost height of its equipment, the annexation complexity; And its implementation is also complicated relatively to the Signal Processing process, and efficient is not ideal enough.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide a kind of rational in infrastructure, cost is lower, signal processing efficient height, installation and maintenance digital microwave relay system simply and easily.
Another object of the present invention is to provide the implementation method of above-mentioned digital microwave relay communication equipment.
Purpose of the present invention is achieved through the following technical solutions: a kind of digital microwave grid communication system, its every grid numeral microwave station point is made of Frequency Division Duplexing (FDD) microwave grid equipment, described Frequency Division Duplexing (FDD) microwave grid equipment comprises baseband interface, time division multiplexing multiple connection module, modulation module, demodulation module, time division multiplexing Demultiplexing module, outdoor unit module, public affair interface, monitoring module and cross-connect module, and the required Frequency Division Duplexing (FDD) microwave telecommunication devices of described every grid numeral microwave station point are a cover Frequency Division Duplexing (FDD) microwave grid equipment.
Described outdoor unit module is connected with cross-connect module by demodulation module, time division multiplexing Demultiplexing module successively.
The number that described demodulation module or time division multiplexing Demultiplexing module are set up in parallel respectively is three at least.
Described Frequency Division Duplexing (FDD) microwave telecommunication devices comprise cross-connect module; Described outdoor unit module is connected with baseband interface by demodulation module, time division multiplexing Demultiplexing module, cross-connect module successively.Interconnection of the present invention is the function that traditional point-to-point relay equipment itself does not have, when traditional point-to-point relay equipment will realize that this requires, the Cross Connect equipment that needs many digital microwave transport equipments of cover and be provided with in addition could realize grid communication, structure and annexation complexity, cost is compared much higher.
Described modulation module, demodulation module cooperate the outdoor unit module that required frequency is set under the control of monitoring module.
The method that a kind of digital microwave relay system is realized, utilize cross-connect module in this Frequency Division Duplexing (FDD) microwave grid equipment to separate signal after the menstruation regulating tap and select and to send the part of interface to send baseband interface, send into time division multiplexing multiple connection module and carry out being sent to the outdoor unit module after multiple connection, the modulation and the signal that needs mail to other direction told with three the road; At each website except end stations all is to send same carrier wave to three or three above directions, and receives a plurality of carrier waves from three or three above directions.
When jumper connection public affair link was handled, three of grid equipment or three above demodulation modules and time division multiplexing Demultiplexing modules were also received public affair after the cross-connect module; Because system of the present invention mails to three or three above directions with same carrier wave, need only like this and on three that mail to or three corresponding fields of above direction, indicate corresponding direction simultaneously and can realize.Make the direction of public affair data of the present invention and voice select to demonstrate remarkable advantages than jumper connection public affair link in the website of traditional point-to-point grid equipment.
When network management data, jumper connection webmaster routing link is that same carrier wave is mail to both direction, and only needing to do corresponding identification when receiving can realize.Utilize the present invention can simplify IP route table, improve the network management data efficiency of transmission.
System works of the present invention is used the FDD resource of frequency range in the FDD of ITU appointment frequency range, with the point-to-point hardware compatibility of FDD; The end equipment of each website is to increase two-way (or more than the two-way in the structure of existing microwave relay unit.After this describe identical) demodulation, tap unit, and cross-connect module is set, utilize the local terminal equipment can shared ODU at each grid station, the interconnection that is increased is to select the part that need send interface and send baseband interface for two-way being separated signal after the menstruation regulating tap, send into TDM multiple connection, modulation and the signal that needs mail to other direction told, to be sent to other direction; The present invention is to send same carrier wave to three or three above directions at each website except end stations and station, edge, and reception is from a plurality of carrier waves of three or three above directions, realize and existing each function that end station employing three is overlapped or three covers could be realized with upper end equipment, but the direction of public affair data of the present invention and voice is selected to demonstrate remarkable advantages than jumper connection public affair link in the website of traditional point-to-point relay equipment; Traditional point-to-point relay equipment jumper connection public affair link will connect between three chain pipeline equipments usually, and what adopt that equipment of the present invention mails to three or three above directions is same set of equipment, does not physically need other connection; And mail to three or three above directions are same carrier waves, only need to indicate direction on corresponding field and get final product.In addition, monitor data of the present invention is transmitted in webmaster Route Selection aspect and demonstrates remarkable advantages than jumper connection in the website of traditional point-to-point relay equipment.Traditional point-to-point relay equipment jumper connection webmaster routing link will connect between three chain pipeline equipments usually, is at same set of equipment and adopt the information that equipment of the present invention mails to three or three above directions, does not physically need other connection.And mail to three or three above directions are same carrier waves, only need to do corresponding identification and get final product when receiving.
The present invention compared with prior art has following advantage and beneficial effect:
(1) rational in infrastructure, cost is lower; The technical program only needs a set of equipment to finish the function that existing three required end equipment of relay could be realized at each website, constitute the digital microwave grid communication equipment, compared with prior art its structure is obviously simplified, microwave grid system for one three direction, when node was abundant, when promptly n was enough big, the quantity of this patent equipment device therefor had only about 1/3 of traditional scheme, so its equipment cost greatly descends, economic benefit is obvious.
(2) convenient for installation and maintenance; This equipment only needs that at each website a set of equipment is installed and gets final product, so fitting operation is fairly simple, and the also corresponding reduction of failure rate, it safeguards relatively easy, convenient.
(3) action effect is good; The direction of public affair data of the present invention and voice selects relative prior art to have remarkable advantages; And monitor data is transmitted in webmaster Route Selection aspect also than jumper connection better effects if in the website of existing equipment, can be applied to substitute existing product preferably and use.
Description of drawings
Fig. 1 is the schematic diagram that traditional point-to-point microwave telecommunication system constitutes three direction networks;
Fig. 2 is the structural representation that Fig. 1 or point-to-point microwave radio-relay communication system shown in Figure 5 adopt equipment;
Fig. 3 is the structural representation that digital microwave grid communication system of the present invention adopts equipment;
Fig. 4 is three direction network diagram of digital microwave grid communication system of the present invention;
Fig. 5 is that traditional point-to-point microwave telecommunication system constitutes the schematic diagram of four directions to network;
Fig. 6 is that the four directions of digital microwave grid communication system of the present invention is to network diagram.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Embodiment
As shown in Figure 3, digital microwave grid communication system of the present invention, its every grid numeral microwave station point is made of Frequency Division Duplexing (FDD) microwave grid equipment, described Frequency Division Duplexing (FDD) microwave grid equipment comprises baseband interface, time division multiplexing multiple connection module, modulation module, demodulation module, time division multiplexing Demultiplexing module, outdoor unit module, public affair interface, monitoring module and cross-connect module etc., and the required Frequency Division Duplexing (FDD) microwave telecommunication devices of every grid numeral microwave station point are a cover Frequency Division Duplexing (FDD) microwave grid equipment; Described outdoor unit module is connected with cross-connect module by demodulation module, time division multiplexing Demultiplexing module successively, and wherein the number of demodulation module, time division multiplexing Demultiplexing module is set up in parallel three at least respectively.Described Frequency Division Duplexing (FDD) microwave telecommunication devices comprise cross-connect module; Described outdoor unit module is connected with baseband interface by demodulation module, time division multiplexing Demultiplexing module, cross-connect module successively; Described modulation module, demodulation module cooperate the outdoor unit module that required frequency is set under the control of monitoring module.
It only is that a cover can realize that the microwave wireless grid transmits effect that this digital microwave grid communication system adopts the end equipment in each mesh stations, its implementation such as Fig. 4 or shown in Figure 6, utilize cross-connect module in the two-way microwave grid equipment of this Frequency Division Duplexing (FDD) that three tunnel (corresponding diagram 6 is four tunnel) are separated signal after the menstruation regulating tap and select and to send the part of interface to send baseband interface, send into that time division multiplexing multiple connection module is carried out multiple connection, modulation is sent to the outdoor unit module and the signal that needs mail to other direction told; At each website except end stations and edge all is that (corresponding diagram 6 is four directions to three directions, send same carrier wave down together), and reception realizes overlapping the function that end equipment (corresponding diagram 6 is quadruplets) could be realized with three of existing each end station employing from three carrier waves (corresponding diagram 6 is four carrier waves of four direction) of three directions.Specifically when the link of jumper connection public affair is handled, same carrier wave is mail to three (corresponding diagram 6 is four) directions, indicating direction simultaneously on corresponding field can realize.Make the direction of public affair data of the present invention and voice select to demonstrate remarkable advantages than jumper connection public affair link in the website of traditional point-to-point grid equipment.Specifically when network management data, jumper connection webmaster routing link is that same carrier wave is mail to three (corresponding diagram 6 is four) directions, and only needing to do corresponding identification when receiving can realize.Utilize the present invention can simplify IP route table, improve the network management data efficiency of transmission.
The present invention can use the FDD resource of frequency range in the FDD of ITU appointment frequency range, and with FDD point-to-point (PtP) system compatible, constitute point to multiple spot (PtMP) microwave cellular communication system.Can reduce system cost, improve the cost performance of system, constitute new microwave telecommunication system.The site type that the present invention introduced is regardless of base station, subscriber station, and each website all can have the outgoing channel of PtMP and interior to channel.Outgoing channel (transmission carrier wave) can be the FDD site type carrier wave of standard, interiorly then can constitute by the FDD site type carrier wave of a plurality of standards to channel (reception carrier), just according to its position at the microwave transmission grid, determine its open several in to carrier wave.
Described embodiment is a preferred implementation of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (8)
1, a kind of digital microwave grid communication system, its every grid numeral microwave station point is made of Frequency Division Duplexing (FDD) microwave grid equipment, described Frequency Division Duplexing (FDD) microwave grid equipment comprises baseband interface, time division multiplexing multiple connection module, modulation module, demodulation module, time division multiplexing Demultiplexing module, outdoor unit module, public affair interface, monitoring module and cross-connect module, it is characterized in that: the required Frequency Division Duplexing (FDD) microwave telecommunication devices of every grid numeral microwave station point are a cover Frequency Division Duplexing (FDD) microwave grid equipment.
2, digital microwave grid communication system according to claim 1 is characterized in that: described outdoor unit module is connected with cross-connect module by demodulation module, time division multiplexing Demultiplexing module successively.
3, digital microwave grid communication system according to claim 2 is characterized in that: the number that described demodulation module or time division multiplexing Demultiplexing module are set up in parallel respectively is three at least.
4, digital microwave grid communication system according to claim 2 is characterized in that: described Frequency Division Duplexing (FDD) microwave telecommunication devices comprise cross-connect module; Described outdoor unit module is connected with baseband interface by demodulation module, time division multiplexing Demultiplexing module, cross-connect module successively.
5, digital microwave relay system according to claim 2 is characterized in that: described modulation module, demodulation module cooperate the outdoor unit module that required frequency is set under the control of monitoring module.
6, a kind of method of utilizing each described digital microwave relay system of claim 1～5 to realize, it is characterized in that: utilize the cross-connect module in this Frequency Division Duplexing (FDD) microwave grid equipment to select and to send the part of interface to send baseband interface, send into that time division multiplexing multiple connection module is carried out multiple connection, modulation is sent to the outdoor unit module and the signal that needs mail to other direction told with separating signal after the menstruation regulating tap more than three the road or three the tunnel; At each website except end stations all is to send same carrier wave to three or three above directions, and receives a plurality of carrier waves from three or three above directions.
7, method according to claim 6, it is characterized in that: when the link of jumper connection public affair is handled, three of grid equipment or three above demodulation modules and time division multiplexing Demultiplexing modules are also received public affair after the cross-connect module, same carrier wave is mail to three or three above directions, on corresponding field, indicate direction simultaneously.
8, method according to claim 6 is characterized in that: when network management data, jumper connection webmaster routing link is that same carrier wave is mail to three or three above directions, only needs to do when receiving corresponding identification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100291079A CN101083499A (en) | 2007-07-10 | 2007-07-10 | Digital microwave grid communication system and method for realizing the same |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100291079A CN101083499A (en) | 2007-07-10 | 2007-07-10 | Digital microwave grid communication system and method for realizing the same |
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| CN101083499A true CN101083499A (en) | 2007-12-05 |
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| CNA2007100291079A Pending CN101083499A (en) | 2007-07-10 | 2007-07-10 | Digital microwave grid communication system and method for realizing the same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465705B (en) * | 2008-06-30 | 2010-10-20 | 华为技术有限公司 | Method and device for processing signal in microwave transmission equipment and microwave transmission equipment |
| CN102098804A (en) * | 2011-01-28 | 2011-06-15 | 广州飞瑞敖电子科技有限公司 | Time-division duplex frequency division multiplexing WiFi signal coverage system, unit and method |
| CN102149224A (en) * | 2010-02-05 | 2011-08-10 | 华为技术有限公司 | Method, device and system for transmitting data |
-
2007
- 2007-07-10 CN CNA2007100291079A patent/CN101083499A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101465705B (en) * | 2008-06-30 | 2010-10-20 | 华为技术有限公司 | Method and device for processing signal in microwave transmission equipment and microwave transmission equipment |
| US8488970B2 (en) | 2008-06-30 | 2013-07-16 | Huawei Tecnologies Co., Ltd. | Microwave transmission apparatus, signal processing method and device in microwave transmission apparatus |
| CN102149224A (en) * | 2010-02-05 | 2011-08-10 | 华为技术有限公司 | Method, device and system for transmitting data |
| WO2011095139A1 (en) * | 2010-02-05 | 2011-08-11 | 华为技术有限公司 | Data transmission method, device and system |
| CN102149224B (en) * | 2010-02-05 | 2014-04-30 | 华为技术有限公司 | Method, device and system for transmitting data |
| US9173049B2 (en) | 2010-02-05 | 2015-10-27 | Huawei Technologies Co., Ltd. | Method, apparatus, and system for data transmission |
| US9609532B2 (en) | 2010-02-05 | 2017-03-28 | Huawei Technologies Co., Ltd. | Method, apparatus, and system for data transmission |
| CN102098804A (en) * | 2011-01-28 | 2011-06-15 | 广州飞瑞敖电子科技有限公司 | Time-division duplex frequency division multiplexing WiFi signal coverage system, unit and method |
| CN102098804B (en) * | 2011-01-28 | 2014-08-13 | 广州飞瑞敖电子科技有限公司 | Time-division duplex frequency division multiplexing WiFi signal coverage system, unit and method |
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Open date: 20071205 |