CN1976253B - Digital microwave relay communication system and realizing method thereof - Google Patents

Digital microwave relay communication system and realizing method thereof Download PDF

Info

Publication number
CN1976253B
CN1976253B CN 200610124176 CN200610124176A CN1976253B CN 1976253 B CN1976253 B CN 1976253B CN 200610124176 CN200610124176 CN 200610124176 CN 200610124176 A CN200610124176 A CN 200610124176A CN 1976253 B CN1976253 B CN 1976253B
Authority
CN
China
Prior art keywords
module
relay
time division
demodulation
tap
Prior art date
Application number
CN 200610124176
Other languages
Chinese (zh)
Other versions
CN1976253A (en
Inventor
朱勤
Original Assignee
京信通信技术(广州)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京信通信技术(广州)有限公司 filed Critical 京信通信技术(广州)有限公司
Priority to CN 200610124176 priority Critical patent/CN1976253B/en
Publication of CN1976253A publication Critical patent/CN1976253A/en
Application granted granted Critical
Publication of CN1976253B publication Critical patent/CN1976253B/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations

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

数字微波接力通信系统及其实现方法 Digital microwave relay communication system and its implementation method

技术领域 FIELD

[0001] 本发明涉及数字微波通信技术,特别涉及一种数字微波接力通信系统及其实现方法。 [0001] The present invention relates to a digital microwave communication technology, and particularly relates to a digital microwave relay communication system and implementation.

背景技术 Background technique

[0002] 传统的数字微波传输系统由频分双工(FDD)的点到点微波设备构成,其接力通信系统中的每段链路都是一对FDD的点到点微波设备,通常称作“一跳”微波设备。 [0002] The conventional digital microwave transmission system from the point microwave equipment constituting a frequency division duplex (FDD), the relay communication system is a pair of links each segment point to point microwave FDD apparatus, commonly referred to as "hop" microwave equipment. 一个微波接力链路(如图1所示的Aa)由一跳微波设备构成,其接收载波工作在FDD高段的P端, 而发送载波工作在FDD的低段,为表述方便,我们在以下描述时用大写字母表示;那么N端就是接收载波工作在FDD低段,而发送载波工作在FDD的高段,在以下描述时用小写字母表示。 (Aa shown in FIG. 1) hop of a radio-relay link by the microwave equipment configuration, which receives the carrier from the P-side of the high stage of the FDD, the transmission carrier work in the low section of the FDD, to facilitate the presentation, we have the following capital letters describing; then the N-terminal is received in the FDD low stage carrier operation, and transmits the carrier work in the high band FDD, lowercase letters in the following description. 一个图1所示的Aa微波接力链路,其A端站接收载波工作在高段的频点fah,发送载波工作在低段的频点fal ;其a端站与A端站相反,接收载波工作在低段的频点fal,接收来自A端站发的fal载波;a端站发送载波工作在高段的频点fah,A端站接收来自a端站发的fah载波。 Aa a radio-relay links shown in Figure 1, end station A received carrier frequency fah high working section, the working transmission carrier frequency of the low stage FAL; which a terminal station A and the opposite end station, the received carrier in the low frequency fal working section, the receiving end station from the a hair fal carrier; end station sends a work carrier from a carrier receiving end station fah made in high frequency fah segment, end station a. 在国际电信联盟(ITU)建议的FDD频段的微波接力通信是由多个点到点链路构成,除末端的站点以外的每个接力站点包括两个端设备。 Microwave relay FDD band in the International Telecommunication Union (ITU) recommendation is constituted by a plurality of point to point link, each end of the relay station other than the station comprises two end devices. 例如图1中的第二个站点,一个是Aa链路的端站a,另一个是Bb链路的端站b。 For example in Figure 1 the second site, Aa is a link end station a, the other end of the link station Bb b. 其中,现有接力通信系统链路端站采用的端设备如图2所示,系统中的每个站点都是由两套图2所示的端设备构成的,由图2可见,这种端设备主要由基带接口、时分多路复用(TDM)复接模块、时分多路复用(TDM)分接模块、调制模块、解调模块、室外单元(0DU)、公务接口、监控模块等连接构成;由于公务也称勤务,所以,所述公务接口也称勤务接口;在利用这种传统端设备的接力站中,两套端设备的ODU单元模块都需单独设置并在各自设备中独立使用的,这样的结构形式及作用方式就使得其设备的成本较高,连接关系相对复杂;而且其实现方法对信号的处理过程亦相对繁复,效率不够理想。 Wherein the client device prior relay systems using link end station As shown, the system is composed of two each site by the end of the two apparatus shown in FIG. 2, seen in Figure 2, such end devices mainly by the baseband interface, time-division multiplexing (TDM) module multiplexing, time division multiplexing (TDM) module tap, modulation module, demodulation module, an outdoor unit (0DU), public interface, a connection module configured to monitor ; also known as public service since, therefore, the interface is also known as public service interfaces; the end of the relay station by using such a conventional apparatus, the ODU unit modules two end devices are required separately and independently provided in the respective device such structure and mode of action makes its high cost equipment, relatively complex connection relationship; and its implementation method is also relatively complicated to process the signal, the efficiency is not ideal.

发明内容 SUMMARY

[0003] 本发明的目的在于克服现有技术的缺点,提供一种结构合理、成本较低、安装维护简单方便的数字微波接力通信系统。 [0003] The object of the present invention to overcome the disadvantages of the prior art, to provide reasonable structure, low cost, easy installation and maintenance of digital microwave relay system.

[0004] 本发明的另一目的在于提供上述数字微波接力通信设备的实现方法。 [0004] Another object of the present invention to provide a method to realize said digital microwave radio relay communication device.

[0005] 本发明的目的通过下述技术方案实现:一种数字微波接力通信系统,其每段链路的接力站点由频分双工微波接力设备构成,所述频分双工微波接力设备包括相连接的基带接口、时分多路复用复接模块、时分多路复用分接模块、调制模块、解调模块、室外单元模块、公务接口和监控模块等,其特征在于:每个接力站点的频分双工微波接力设备为一套频分双工双向微波接力设备,所述频分双工双向微波接力设备包括交叉连接模块;所述解调模块及时分多路复用分接模块的数量分别为两个,两个时分多路复用分接模块同时连接于所述交叉连接模块及室外单元模块,所述交叉连接模块与基带接口相连接。 [0005] The object of the present invention are achieved by the following technical solution: A digital radio relay systems, which link each segment of the relay station by frequency division duplex radio relay device constituting a frequency division duplex radio relay apparatus comprising connected to baseband interface, time-division multiplexing module multiplexing, time division multiplexing tap module, the modulation module, demodulation module, the outdoor unit module, wire interface and monitoring module, wherein: each of the relay station frequency-division duplex radio relay apparatus is a frequency division duplex two-way radio relay apparatus, the frequency division duplex two-way radio relay apparatus includes a cross-connect module; module in time division multiplexing demodulating said tap module number two, respectively, two time-division multiplexing module while the tap is connected to the cross-connect module and the outdoor unit module, the cross-connect module is connected to the baseband interface. 本发明所述交叉连接是传统的点对点接力设备本身不具有的功能,传统的点对点接力设备要实现这一要求时,需要多套数字微波传输设备以及另外设置的交叉连接设备才能实现双向的接力通信,结构及连接关系复杂,成本比较高。 The present invention is a conventional cross-connect device itself does not have the relay point function, the relay peer conventional apparatus to achieve this requirement, the need for multiple sets of digital microwave transmission equipment and the further cross-connect device provided to achieve bidirectional communication relay , structure and connection relationship complex, the cost is relatively high.

[0006] 本频分双工双向微波接力设备的调制模块、解调模块在监控模块的控制下,配合室外单元模块设置所需频率。 [0006] The present bi-directional frequency division duplex radio-relay equipment modulation module, demodulation module under control of the monitoring module, with the outdoor unit modules set the desired frequency.

[0007] 所述两个解调模块及两个时分多路复用分接模块并接到交叉连接模块。 [0007] The two demodulation module and two modules and time division multiplexing tap to cross-connect module.

[0008] 一种数字微波接力通信系统的实现方法,其特征在于:利用本频分双工双向微波接力设备中的交叉连接模块将两路由两个解调模块解调,经两个时分多路复用分接模块分接后的信号选择出需要送接口的部分送基带接口,而将需要发往另一方向的信号分出送入时分多路复用复接模块进行复接、调制,以发向另一方向;在除了末端站以外的每个站点都是向两个方向发送同一个载波,而接收来自两个方向的两个载波。 [0008] The method for implementing a digital microwave relay communication system, characterized by: a frequency division duplex bidirectional utilize the radio-relay apparatus the two cross-connect module demodulation module demodulates two routes over two time division multiplexed multiplexing module tap selection signal is tapped after the part of the interface need to send transmission baseband interface, the signal will be required in the other direction into the drop multiplexing module for time division multiplexing multiplexed, modulated to sent in the other direction; the same carrier is transmitted in both directions at each site in addition to the end station, receiving two carriers from two directions.

[0009] 在跳接公务链接处理时,频分双工微波接力设备的两个解调模块及时分多路复用分接模块并接到交叉连接模块之后的公务;由于本发明的系统是将同一个载波发往两个方向,这样只要在发往的两个方向相应的字段上同时标示出相应的方向即可实现。 [0009] When public jumper link processing, frequency division duplex radio relay device in time division multiplexing two demodulation modules and to the public tap module after the cross-connect module; Because the system of the present invention is a carrier sent to the same two directions, so as long as the mark while the corresponding field in two directions sent to the respective directions can be realized. 使本发明的公务数据和语音的方向选择比传统的点对点接力设备的站点内跳接公务链接显示出明显的优势。 Corporate voice data and a direction of the present invention, the selection ratio of the relay station apparatus traditional point to point links jumper official show a clear advantage.

[0010] 在网络管理数据时,跳接网管路由链接是将同一个载波发往两个方向,仅需在接收时作相应的识别即可实现。 [0010] When the network management data, network routing jumper links are sent to the same carrier in both directions, just as when receiving corresponding identification can be realized. 利用本发明可简化IP路由表,提高网络管理数据传输效率。 With the present invention simplifies the IP routing table, the network management to improve data transmission efficiency.

[0011] 本发明的作用原理是:本发明系统工作在ITU指定的FDD频段,用FDD频段资源, 与FDD点对点设备兼容;每个站点的端设备是在现有的微波接力设备的结构中增加一路解调、分接单元,并设置交叉连接模块,利用本端设备在每个接力站可共用0DU,所增加的交叉连接是为了将两路解调经分接后的信号选择出需要送接口的部分送基带接口,而将需要发往另一方向的信号分出送入TDM复接、调制,以发向另一方向;本发明在除了末端站以外的每个站点都是向两个方向发送同一个载波,而接收来自两个方向的两个载波,实现与现有每个端站采用两套端设备才能实现的功能,但本发明的公务数据和语音的方向选择比传统的点对点接力设备的站点内跳接公务链接显示出明显的优势;传统的点对点接力设备跳接公务链接通常要在两个链路设备之间建立连接,而采用 [0011] Mechanisms of this invention: The present invention system operation specified in ITU FDD band, using FDD frequency resources, compatibility with FDD point equipment; end of each site is to increase the device in the configuration of the conventional radio-relay apparatus demodulating the way, the tap, and cross-connect module is provided by the local device may be shared in each of the relay station 0DU, is increased in order to cross-connect the two signals to demodulate the selected tap interfaces need to send feeding part of the base band interface, and will need to send a signal to the other direction is separated into TDM multiplexing, modulation, sent to the other direction; at each site in addition to the end station of the present invention are the two directions transmitting a same carrier, receiving two carriers from two directions, and to achieve each of the existing end station terminal apparatus uses two functions can be achieved, but the direction of the public voice and data selection invention over traditional point to point Relay jumper inside the device official site link shows a clear advantage; traditional point to point Relay equipment jumper official links usually establish a connection between the two link devices, and the use 发明的设备发往两个方向的是同一套设备,物理上不需要另外连接;而发往两个方向是同一个载波,仅需在相应的字段上标示方向即可。 The invention device to the two directions is the same set of equipment, no additional physical connections; the two directions is sent to the same carrier, only indicated in the corresponding direction can be accessed. 此外,本发明的监控数据传输在网管路由选择方面比传统的点对点接力设备的站点内跳接显示出明显的优势。 Further, the present invention is to monitor data transmission than the inner point of the relay station apparatus conventional jumper show a clear advantage in the choice of the route network. 传统的点对点接力设备跳接网管路由链接通常要在两个链路设备之间建立连接,而采用本发明的设备发往两个方向的信息是在同一套设备,物理上不需要另外连接。 Relay equipment traditional point to point network routing jumper link typically establish a connection between two link device, the present invention device to the two directions of information is further connected to the same set of equipment need not be physically. 而发往两个方向是同一个载波,仅需在接收时作相应的识别即可。 The two directions is sent to the same carrier, only for the corresponding identification to reception.

[0012] 本发明相对于现有技术具有如下的优点及效果:(1)结构合理、成本较低;本技术方案在每个站点仅需要一套设备完成现有接力所需的两端设备才能实现的功能,构成数字微波接力通信设备,与现有技术相比其结构明显简化,对于一个微波接力链路,本专利设备所用设备的数量只有传统方案的n/2+l左右,所以其设备成本大为下降,经济效益明显。 [0012] The prior art relative to the present invention has the following advantages and effects: reasonable (1) structure and low cost; the present technical solution requires a set of equipment needed to complete prior to the relay only two devices at each site achieve the function, constituting the digital microwave relay communication equipment, compared to the prior art which significantly simplified structure, for a number of radio-relay links, the device of the present patent application equipment only conventional scheme of n / 2 + l or so, so that the device costs dropped significantly, significant economic benefits. (2)安装维护方便;本设备在每个站点仅需要安装一套设备即可,所以安装操作比较简单, 故障率亦相应降低,其维护相对容易、方便。 (2) easy installation and maintenance; this device in each site need only to install a device, the mounting operation is relatively simple, the failure rate is also reduced accordingly, their maintenance is relatively easy and convenient. (3)作用效果好;本发明的公务数据和语音的方向选择相对现有技术具有明显的优势;而且监控数据传输在网管路由选择方面亦比现有设备的站点内跳接效果更好,可较好地应用于替代现有的产品使用。 (3) effective action; Corporate direction data and voice selection invention relative to the prior art has obvious advantages; monitoring data transmission and also better results than the jumper site existing routing device in a network management aspects, It is well used alternative to existing products.

4附图说明 BRIEF DESCRIPTION OF 4

[0013] 图1是传统的点对点微波接力通信系统的链路示意图。 [0013] FIG. 1 is a schematic diagram of a conventional point to point microwave link relay communication system.

[0014] 图2是图1所示点对点微波接力通信系统采用的端设备的结构示意图。 [0014] FIG. 2 is a schematic configuration diagram of a terminal apparatus shown in point to point microwave relay communication system uses.

[0015] 图3是本发明数字微波接力通信系统采用的端设备的结构示意图。 [0015] FIG. 3 is a schematic view of the structure of the client device digital microwave relay communication system of the present invention is employed.

[0016] 图4是本发明数字微波接力通信系统的链路示意图。 [0016] FIG. 4 is a schematic diagram of a digital microwave radio relay link communication system according to the present invention.

具体实施方式 Detailed ways

[0017] 下面结合实施例及附图对本发明作进一步详细的描述,但本发明的实施方式不限于此。 [0017] and the following description in conjunction with the accompanying drawings of the embodiments of the present invention will be further detailed embodiment, the embodiment of the present invention is not limited thereto.

[0018] 实施例 [0018] Example

[0019] 图3示出了本发明的结构,由图3可见,本数字微波接力通信系统采用的端设备包括相连接的基带接口、时分多路复用复接模块、时分多路复用分接模块、调制模块、解调模块、室外单元模块、公务接口、监控模块;还包括交叉连接模块;所述解调模块及时分多路复用分接模块的数量分别为两个,两个解调模块及时分多路复用分接模块并联连接,其两端同时连接于所述室外单元及交叉连接模块,所述交叉连接模块与基带接口相连接。 [0019] FIG. 3 shows the structure of the present invention, seen from Figure 3, the end of the present apparatus uses digital microwave relay communication system includes a base band interface, connected to a time division multiplexing multiplexing module, a sub-division multiplex access module, the modulation module, demodulation module, the outdoor unit module, wire interface, the monitoring module; further comprising a cross-connect module; tapped in time division multiplexing demodulation module number of the module, respectively two, two solutions in time division multiplex modulation module tap modules connected in parallel, while both ends thereof are connected to the outdoor unit and a cross-connect module, the cross-connect module is connected to the baseband interface. 调制模块、解调模块在监控模块的控制下,配合室外单元模块设置所需频率。 Modulation module, demodulation module under control of the monitoring module, with the outdoor unit modules set the desired frequency.

[0020] 本数字微波接力通信系统采用在每个接力站点的端设备仅为一套即可实现微波无线接力传送效果,其实现方法如图4所示,利用本频分双工双向微波接力设备中的交叉连接模块将两路由两个解调模块解调,经两个时分多路复用分接模块分接后的信号选择出需要送接口的部分送基带接口,而将需要发往另一方向的信号分出送入时分多路复用复接模块进行复接、调制,以发向另一方向;在除了末端站以外的每个站点都是向两个方向发送同一个载波,而接收来自两个方向的两个载波,实现与现有每个端站采用的两套端设备才能实现的功能。 [0020] This digital microwave relay system can be realized using only a microwave radio relay transfer effect at each end of the relay station apparatus that implements the method shown in Figure 4, with this frequency division duplex bidirectional radio relay apparatus the cross-connect module to route two demodulation module demodulates two over two time division multiplexed signal tapped after the tap module need to send the selected portion of the interface transmission baseband interface, but will need to be sent to another direction signal is fed drop multiplexing module for time division multiplexing multiplexed, modulated to send the other direction; the same carrier is transmitted in both directions at each site in addition to the end station, receiving two carriers from two directions, to achieve each of the functions implemented with the existing equipment to two end station terminal used. 具体在跳接公务链接处理时,将同一个载波发往两个方向,同时在相应的字段上标示方向即可实现。 When jumper official specific linking process, a carrier will be sent to the same two directions, while the direction indicated in the respective fields can be realized. 使本发明的公务数据和语音的方向选择比传统的点对点接力设备的站点内跳接公务链接显示出明显的优势。 Corporate voice data and a direction of the present invention, the selection ratio of the relay station apparatus traditional point to point links jumper official show a clear advantage. 具体在网络管理数据时,跳接网管路由链接是将同一个载波发往两个方向,仅需在接收时作相应的识别即可实现。 In particular when the network management data, network routing jumper links are sent to the same carrier in both directions, just as when receiving corresponding identification can be realized. 利用本发明可简化IP 路由表,提高网络管理数据传输效率。 With the present invention simplifies the IP routing table, the network management to improve data transmission efficiency.

[0021] 上述实施例为本发明较佳的实施方式,但本发明的实施方式并不受上述实施例的限制,其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化, 均应为等效的置换方式,都包含在本发明的保护范围之内。 [0021] The preferred embodiment of the present invention embodiment, but the embodiment of the present invention is not limited to the above embodiments, changes made to any other without departing from the spirit and principle of the present invention, modifications, substitutions , combined, simplified, should be equivalent replacement method, it is included within the scope of the present invention.

Claims (6)

  1. 一种数字微波接力通信系统,其每段链路的接力站点由频分双工微波接力设备构成,所述频分双工微波接力设备包括相连接的基带接口、时分多路复用复接模块、时分多路复用分接模块、调制模块、解调模块、室外单元模块、公务接口和监控模块,其特征在于:每个接力站点的频分双工微波接力设备为一套频分双工双向微波接力设备,所述频分双工双向微波接力设备包括交叉连接模块;所述解调模块及时分多路复用分接模块的数量分别为两个,两个时分多路复用分接模块同时连接于所述交叉连接模块及室外单元模块,所述交叉连接模块与基带接口相连接。 A digital microwave relay system, which links each piece of the relay station by frequency division duplex radio relay device constituting a frequency division duplex radio relay apparatus comprises a baseband interface connected to, time division multiplexing multiplexing module , tap module time division multiplexing, modulation module, demodulation module, the outdoor unit module, wire interface and monitoring module, wherein: a frequency division duplex radio relay station devices each for a Relay frequency division duplex two-way radio relay apparatus, the frequency division duplex two-way radio relay apparatus includes a cross-connect module; the number of demodulation modules and time division multiplexing tap two modules respectively, time division multiplexing two tap module while the module is connected to the cross-connect module and the outdoor unit, the cross-connect module is connected to the baseband interface.
  2. 2.根据权利要求1所述的数字微波接力通信系统,其特征在于:所述调制模块、解调模块在监控模块的控制下,配合室外单元模块设置所需频率。 The digital microwave relay communication system according to claim 1, wherein: said modulation module, demodulation module under control of the monitoring module, with the outdoor unit modules set the desired frequency.
  3. 3.根据权利要求1所述的数字微波接力通信系统,其特征在于:所述两个解调模块及两个时分多路复用分接模块并接到交叉连接模块。 3. The digital microwave relay communication system according to claim 1, wherein: said two demodulation module and two modules and time division multiplexing tap to cross-connect module.
  4. 4. 一种利用权利要求1〜3任一项所述数字微波接力通信系统实现的方法,其特征在于:利用频分双工双向微波接力设备中的交叉连接模块将两路由两个解调模块解调,经两个时分多路复用分接模块分接后的信号选择出需要送接口的部分送基带接口,而将需要发往另一方向的信号分出送入时分多路复用复接模块进行复接、调制,以发向另一方向;在除了末端站以外的每个站点都是向两个方向发送同一个载波,而接收来自两个方向的两个载波。 4. A method according to any of claim 1 ~ 3 using the a digital microwave relay systems implemented, characterized in that: the use of a frequency division duplex two-way radio-relay apparatus the two cross-connect module routing two demodulation modules demodulation over two time division multiplexed signal tapped after the tap module need to send the selected portion of the interface transmission baseband interface, the signal will be required in the other direction into the drop multiplexing time division multiplexed access modules multiplexed, modulated to send the other direction; the same carrier is transmitted in both directions at each site in addition to the end station, receiving two carriers from two directions.
  5. 5.根据权利要求4所述的方法,其特征在于:在跳接公务链接处理时,频分双工微波接力设备的两个解调模块及时分多路复用分接模块并接到交叉连接模块之后< 公务,将同一个载波发往两个方向,同时在相应的字段上标示方向。 The method according to claim 4, wherein: when the public jumper link processing, frequency division duplex radio-relay two demodulation modules and time division multiplexing device, and tap to cross-connect module following block <Corporate, a carrier will be sent to the same two directions, while the direction indicated in the appropriate fields.
  6. 6.根据权利要求4所述的方法,其特征在于:在网络管理数据时,跳接网管路由链接是将同一个载波发往两个方向,仅需在接收时作相应的识别。 6. The method as claimed in claim 4, wherein: when the network management data, network routing jumper links are sent to the same carrier in both directions, just as when receiving corresponding identification.
CN 200610124176 2006-12-12 2006-12-12 Digital microwave relay communication system and realizing method thereof CN1976253B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200610124176 CN1976253B (en) 2006-12-12 2006-12-12 Digital microwave relay communication system and realizing method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 200610124176 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

Publications (2)

Publication Number Publication Date
CN1976253A CN1976253A (en) 2007-06-06
CN1976253B true CN1976253B (en) 2010-12-01

Family

ID=38126081

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200610124176 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
EP1472817B1 (en) Method for operating an ad-hoc network for the wireless data transmission of synchronous and asynchronous messages
US4781427A (en) Active star centered fiber optic local area network
US7634250B1 (en) Signal conditioner and method for communicating over a shared transport medium a combined digital signal for wireless service
EP1916806B1 (en) Wireless communication system
US6167055A (en) Apparatus for provision of broadband signals over installed telephone wiring
US5870134A (en) CATV network and cable modem system having a wireless return path
US20140150038A1 (en) Intelligent device system and method for distribution of digital signals on a wideband signal distribution system
JP2005526411A (en) Access node for multi-protocol video and data services
US20020030870A1 (en) Radio base station system and central control station with unified transmission format
US6195362B1 (en) Resource pooling system and method in communication systems
EP0695092A1 (en) Network apparatus and method for providing two-way broadband communications
US6449071B1 (en) Digital signal processing optical transmitter
US8175649B2 (en) Method and system for real time control of an active antenna over a distributed antenna system
JP3547750B2 (en) Passive optical network for video on demand
US5150247A (en) Fiber optic telecommunication system employing continuous downlink, burst uplink transmission format with preset uplink guard band
US5642348A (en) Access director interface for narrowband/broadband information distribution network
EP1271996A2 (en) Optical transmission apparatus
US6240077B1 (en) Dynamic wireless multiplexing — switching hub for providing two-way communications with subscriber units
DE4120401C2 (en) Switching system with a variety of telephone subscriber connections
KR100924606B1 (en) System and method for implementing a multi-radio wireless network
US5848070A (en) Multiframe structure and handling protocol for a telecommunication network
US6240274B1 (en) High-speed broadband wireless communication system architecture
EP0114678B1 (en) Base-band equipment for earth stations of a time division multiple access satellite transmission system
CN1065383C (en) Frame relay protocol-based multiplex switching scheme for satellite mesh network
JP2777194B2 (en) The optical transmission system

Legal Events

Date Code Title Description
C06 Publication
C10 Request of examination as to substance
C14 Granted