CN1976253B - Digital microwave relay communication system and realizing method thereof - Google Patents
Digital microwave relay communication system and realizing method thereof Download PDFInfo
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- CN1976253B CN1976253B CN2006101241763A CN200610124176A CN1976253B CN 1976253 B CN1976253 B CN 1976253B CN 2006101241763 A CN2006101241763 A CN 2006101241763A CN 200610124176 A CN200610124176 A CN 200610124176A CN 1976253 B CN1976253 B CN 1976253B
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- module
- microwave relay
- fdd
- time division
- division multiplexing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
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- Computer Networks & Wireless Communication (AREA)
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Abstract
A digital microwave relay communication system is prepared as forming relay station at each section of link by frequency division duplex microwave relay device including base band interface, TDM multiplexing module, TDM tapping module, modulation module, demodulation module, output unit module, service interface and monitoring module. The relaying method applying said system is also disclosed.
Description
Technical field
The present invention relates to the digital microwave telecommunication technology, particularly a kind of digital microwave relay system and its implementation.
Background technology
Traditional digital microwave transmission system is made of the point-to-point microwave equipment of Frequency Division Duplexing (FDD) (FDD), and every section link in its relay communication system all is the point-to-point microwave equipment of a pair of FDD, so-called " one jumps " microwave equipment.A microwave relay link (A-a as shown in Figure 1) 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.An A-a microwave relay link shown in Figure 1, 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 radio-relay communication in the FDD frequency range of International Telecommunication Union suggestion is to be made of a plurality of point-to-point links, and each the relay website that removes the website of end comprises two end equipment.Second website among Fig. 1 for example, 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 relay communication system end of link station as shown in Figure 2, each website in the system all is to be made of two covers end equipment shown in Figure 2, 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.; Because public affair also claims duties, so described public affair interface also claims the duties interface; 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 that the cost of its equipment is higher, the annexation relative complex; 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, 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 relay system, the relay website of its every section link is made of the Frequency Division Duplexing (FDD) microwave relay unit, described Frequency Division Duplexing (FDD) microwave relay unit comprises the baseband interface that is connected, time division multiplexing multiple connection module, the time division multiplexing Demultiplexing module, modulation module, demodulation module, the outdoor unit module, public affair interface and monitoring module etc., it is characterized in that: the Frequency Division Duplexing (FDD) microwave relay unit of each relay website is the two-way microwave relay unit of a cover Frequency Division Duplexing (FDD), and the two-way microwave relay unit of described Frequency Division Duplexing (FDD) comprises cross-connect module; The quantity of described demodulation module and time division multiplexing Demultiplexing module is respectively two, and two time division multiplexing Demultiplexing modules are connected in described cross-connect module and outdoor unit module simultaneously, and described cross-connect module is connected with baseband interface.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 two-way relay communication, structure and annexation complexity, cost is than higher.
The modulation module of the two-way microwave relay unit of this Frequency Division Duplexing (FDD), demodulation module cooperate the outdoor unit module that required frequency is set under the control of monitoring module.
Described two demodulation modules and two time division multiplexing Demultiplexing modules are also received cross-connect module.
A kind of implementation method of digital microwave relay system, it is characterized in that: utilize cross-connect module in the two-way microwave relay unit of this Frequency Division Duplexing (FDD) two demodulation module demodulation of two routes, signal after two time division multiplexing Demultiplexing module taps is selected and need be sent the part of interface to send baseband interface, send into time division multiplexing multiple connection module and carry out multiple connection, modulation and the signal that needs mail to other direction told, to be sent to other direction; At each website except end stations all is to send same carrier wave to both direction, and receives two carrier waves from both direction.
When the link of jumper connection public affair was handled, two demodulation modules and time division multiplexing Demultiplexing modules of Frequency Division Duplexing (FDD) microwave relay unit were also received cross-connect module public affair afterwards; Because system of the present invention mails to both direction with same carrier wave, can realize as long as on the corresponding field of the both direction that mails to, indicate corresponding direction simultaneously like this.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 relay 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.
Action principle of the present invention is: 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 by one tunnel demodulation, tap unit in the structure of existing microwave relay unit, and cross-connect module is set, utilize the local terminal equipment can shared ODU at each relay stations, 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 both direction at each website except end stations, and reception is from two carrier waves of both direction, realize adopting two to overlap the function that the end equipment could be realized, 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 with existing each end station; Traditional point-to-point relay equipment jumper connection public affair link will connect between two chain pipeline equipments usually, and what adopt that equipment of the present invention mails to both direction is same set of equipment, does not physically need other connection; And mail to both direction is same carrier wave, only needs to indicate direction on corresponding field and gets 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 two chain pipeline equipments usually, is at same set of equipment and adopt the information that equipment of the present invention mails to both direction, does not physically need other connection.And mail to both direction is same carrier wave, only needs to do corresponding identification and get final product when receiving.
The present invention has following advantage and effect with respect to prior art: (1) is rational in infrastructure, cost is lower; The technical program only needs a set of equipment to finish the function that the existing required terminal device of relay could realize at each website, constitute digital microwave relay communication equipment, compared with prior art its structure is obviously simplified, for a microwave relay link, the quantity of this patent equipment device therefor has only about the n/2+1 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 link schematic diagram of traditional point-to-point microwave radio-relay communication system.
Fig. 2 is the structural representation of the end equipment of point-to-point microwave radio-relay communication system employing shown in Figure 1.
Fig. 3 is the structural representation of the end equipment of digital microwave relay system employing of the present invention.
Fig. 4 is the link schematic diagram of digital microwave relay system of the present invention.
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
Fig. 3 shows structure of the present invention, as seen from Figure 3, the end equipment of this digital microwave radio-relay communication system employing comprises baseband interface, time division multiplexing multiple connection module, time division multiplexing Demultiplexing module, modulation module, demodulation module, outdoor unit module, public affair interface, the monitoring module that is connected; Also comprise cross-connect module; The quantity of described demodulation module and time division multiplexing Demultiplexing module is respectively two, two demodulation modules and time division multiplexing Demultiplexing module are connected in parallel, its two ends are connected in described outdoor unit and cross-connect module simultaneously, and described cross-connect module is connected with baseband interface.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 be realized microwave wireless refile effect that this digital microwave radio-relay communication system adopts the end equipment at each relay website, its implementation as shown in Figure 4, utilize cross-connect module in the two-way microwave relay unit of this Frequency Division Duplexing (FDD) with two demodulation module demodulation of two routes, signal after two time division multiplexing Demultiplexing module taps is selected and need be sent the part of interface to send baseband interface, send into time division multiplexing multiple connection module and carry out multiple connection, modulation and the signal that needs mail to other direction told, to be sent to other direction; At each website except end stations all is to send same carrier wave to both direction, and receives two carrier waves from both direction, realizes the function that could realize with two cover end equipment of existing each end station employing.Specifically when the link of jumper connection public affair is handled, same carrier wave is mail to both direction, 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 relay equipment.Specifically 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.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; 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 (6)
1. digital microwave relay system, the relay website of its every section link is made of the Frequency Division Duplexing (FDD) microwave relay unit, described Frequency Division Duplexing (FDD) microwave relay unit comprises baseband interface, time division multiplexing multiple connection module, time division multiplexing Demultiplexing module, modulation module, demodulation module, outdoor unit module, public affair interface and the monitoring module that is connected, it is characterized in that: the Frequency Division Duplexing (FDD) microwave relay unit of each relay website is the two-way microwave relay unit of a cover Frequency Division Duplexing (FDD), and the two-way microwave relay unit of described Frequency Division Duplexing (FDD) comprises cross-connect module; The quantity of described demodulation module and time division multiplexing Demultiplexing module is respectively two, and two time division multiplexing Demultiplexing modules are connected in described cross-connect module and outdoor unit module simultaneously, and described cross-connect module is connected with baseband interface.
2. digital microwave relay system according to claim 1 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.
3. digital microwave relay system according to claim 1 is characterized in that: described two demodulation modules and two time division multiplexing Demultiplexing modules are also received cross-connect module.
4. method of utilizing each described digital microwave relay system of claim 1～3 to realize, it is characterized in that: utilize cross-connect module in the two-way microwave relay unit of Frequency Division Duplexing (FDD) two demodulation module demodulation of two routes, signal after two time division multiplexing Demultiplexing module taps is selected and need be sent the part of interface to send baseband interface, send into time division multiplexing multiple connection module and carry out multiple connection, modulation and the signal that needs mail to other direction told, to be sent to other direction; At each website except end stations all is to send same carrier wave to both direction, and receives two carrier waves from both direction.
5. method according to claim 4, it is characterized in that: when the link of jumper connection public affair is handled, two demodulation modules and time division multiplexing Demultiplexing modules of Frequency Division Duplexing (FDD) microwave relay unit are also received cross-connect module public affair afterwards, same carrier wave is mail to both direction, on corresponding field, indicate direction simultaneously.
6. method according to claim 4 is characterized in that: when network management data, jumper connection webmaster routing link is that same carrier wave is mail to both direction, only needs to do when receiving corresponding identification.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101241763A CN1976253B (en) | 2006-12-12 | 2006-12-12 | Digital microwave relay communication system and realizing method thereof |
| PCT/CN2007/003516 WO2008071076A1 (en) | 2006-12-12 | 2007-12-10 | Digital microwave relay system and implementation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006101241763A CN1976253B (en) | 2006-12-12 | 2006-12-12 | Digital microwave relay communication system and realizing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1976253A CN1976253A (en) | 2007-06-06 |
| CN1976253B true CN1976253B (en) | 2010-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101241763A Expired - Fee Related CN1976253B (en) | 2006-12-12 | 2006-12-12 | Digital microwave relay communication system and realizing method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1976253B (en) |
| WO (1) | WO2008071076A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1976253B (en) * | 2006-12-12 | 2010-12-01 | 京信通信技术(广州)有限公司 | Digital microwave relay communication system and realizing method thereof |
| JP5347489B2 (en) * | 2008-12-24 | 2013-11-20 | 日本電気株式会社 | Microwave communication system and apparatus |
| CN102377888B (en) * | 2010-08-16 | 2015-12-16 | 中兴通讯股份有限公司 | Realize the system of the online official telephone of microwave communication, device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896560A (en) * | 1996-04-12 | 1999-04-20 | Transcrypt International/E. F. Johnson Company | Transmit control system using in-band tone signalling |
| CN1405988A (en) * | 2001-09-19 | 2003-03-26 | 张会庭 | Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system |
| CN200994138Y (en) * | 2006-12-12 | 2007-12-19 | 京信通信技术(广州)有限公司 | Digital microwave relay communication device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI112134B (en) * | 1999-03-05 | 2003-10-31 | Nokia Corp | Data transmission method and radio link system |
| CN1706176A (en) * | 2002-10-17 | 2005-12-07 | 安比恩特公司 | Repeaters sharing a common medium for communications |
| NO20033896D0 (en) * | 2003-09-03 | 2003-09-03 | Ericsson Telefon Ab L M | System architecture optimized for scalability |
| CN1976253B (en) * | 2006-12-12 | 2010-12-01 | 京信通信技术(广州)有限公司 | Digital microwave relay communication system and realizing method thereof |
-
2006
- 2006-12-12 CN CN2006101241763A patent/CN1976253B/en not_active Expired - Fee Related
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2007
- 2007-12-10 WO PCT/CN2007/003516 patent/WO2008071076A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5896560A (en) * | 1996-04-12 | 1999-04-20 | Transcrypt International/E. F. Johnson Company | Transmit control system using in-band tone signalling |
| CN1405988A (en) * | 2001-09-19 | 2003-03-26 | 张会庭 | Rural electric circuit synchronous-transmission wide-narrow band digital information switch-in network system |
| CN200994138Y (en) * | 2006-12-12 | 2007-12-19 | 京信通信技术(广州)有限公司 | Digital microwave relay communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2008071076A1 (en) | 2008-06-19 |
| CN1976253A (en) | 2007-06-06 |
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