CN103391485A - Digital all-optical distributed system allowing multiple-service access - Google Patents

Digital all-optical distributed system allowing multiple-service access Download PDF

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CN103391485A
CN103391485A CN2013103658259A CN201310365825A CN103391485A CN 103391485 A CN103391485 A CN 103391485A CN 2013103658259 A CN2013103658259 A CN 2013103658259A CN 201310365825 A CN201310365825 A CN 201310365825A CN 103391485 A CN103391485 A CN 103391485A
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signal
processing unit
digital
access
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CN2013103658259A
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徐红波
江鹏
陈俊涛
白天
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武汉虹信通信技术有限责任公司
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Abstract

A digital all-optical distributed system allowing multiple-service access is characterized by comprising an access unit, an expansion unit and a remote unit, wherein the access unit and the expansion unit are connected through optical fiber, and the expansion unit and the remote unit are connected through optical fiber; the access unit or the expansion unit is connected with the network, and the remote unit is connected with the network; and a switching unit can be further arranged and is connected with the access unit which is used for 1+1 backup through a feeder line cable and optical fiber. The access unit in the system couples multiple service radio-frequency signals from a signal source, converts the signals into digital baseband signals and transmits the digital baseband signals to the expansion unit, the expansion unit realizes shunting of digital baseband downlink signals and combining of digital baseband uplink signals and transmits the digital baseband signals to the remote unit through optical fiber. The system can provide services such as wireless access, fixed network broadband, WLAN (wireless local area network) signal transmission and the like, can develop multiple functions on the basis of digital intermediate frequency and can support star, daisy chain and mixed networking.

Description

一种多业务接入的数字全光分布式系统 A multi-service access number of all-optical distributed system

技术领域 FIELD

[0001] 本发明涉及一种的室内和室外数字光纤多业务分布式系统,该系统主要应用于城中村、大型场馆、写字楼、多网共站和多网异站等特殊场景下的多业务信号深度覆盖和组网。 [0001] The present invention relates to indoor and outdoor multiservice distributed digital optical system, which is mainly used in city, multi-service signal in the particular scene large venues, office buildings, multi-network and multi-station network co stations iso depth coverage and network.

背景技术 Background technique

[0002] 数字光纤拉远系统以其组网灵活、系统增益不随光路损耗而变化等优势在最近几年得到了广泛的应用,涵盖了2G、3G等多种运营网络。 [0002] Digital optical zooming system with its flexible networking, system gain does not vary with changes in the optical path loss and other advantages in recent years has been widely used, covering a wide range of operational 2G, 3G and other networks. 由于无线通信正在进行快速发展,从第一代模拟移动通信到2G、3G的商用及LTE(Long Term Evolution,长期演进)的预研前后历程也只有十余年的时间,运营商在网络建设上都存在多种通信网络同时存在的情况,大部分运营商正在运营的通信网络一般都有两种或更多,国内的移动通信厂家如中国移动,就有GSM900、DCS1800、TD-SCDMA2000、WLAN 和固网宽带,中国联合通信有GSM900、DCS1800、WCDMA2100、WLAN和固网宽带,多种网络并存就意味着数字射频拉远系统可以采取将多种制式或频段的网络进行合并后进行光纤传输,这样可以减少网络建设的重复投资及物业协调。 Due to the rapid development of wireless communication is in progress, from the first generation analog mobile communications to 2G, 3G commercial and LTE (Long Term Evolution, Long Term Evolution) before and after the pre-research course also on only ten years, operators in network construction there is the case of a variety of communication networks are present, most operators are operators of communications networks generally have two or more, the domestic mobile communications manufacturers such as China mobile, there is GSM900, DCS1800, TD-SCDMA2000, WLAN and fixed-line broadband, China Unicom has GSM900, DCS1800, WCDMA2100, WLAN and fixed-line broadband, it means the coexistence of a variety of network digital remote radio system can be taken after a variety of standard optical fiber transmission network merger or band, so you can reduce duplication of network construction and property investment coordination.

[0003] 但是由于建筑物对无线信号有着严重的衰减和屏蔽作用,在一些大型是室内场馆、写字楼、地下车库和城中村、存在很多的盲区到时手机用户无法使用。 [0003] However, because the building has a severe attenuation and shielding effect on radio signals, in some large indoor stadiums, office buildings, underground garage and villages, there are a lot of blind spots to the mobile phone users can not use. 同时,随着移动业务的增长,由于2G和3G业务下行速率比较低,难以满足目前智能终端用户对数据业务的体验感知度。 At the same time, with the growth of mobile services, 2G and 3G services due downlink rate is relatively low, it is difficult to meet the current perception of intelligent end-user experience for data services.

[0004] 在安装和组网方面,传统的数字光纤系统都是采用搭建馈线网络实现,通过无源合路器件将多频信号融合到天馈端实现覆盖,天线的辐射问题已引起人们的恐慌,导致运营商在小区和写字楼的很多建网系统遭到投诉而拆除。 [0004] In terms of installation and networking, conventional digital optical systems are built using the feeder network implemented by a passive combiner devices the multi-frequency signal to the antenna-terminal fusion realized coverage, an antenna radiation problem has attracted panic , leading operators subject of complaints in many networking system cell and office and removed.

发明内容 SUMMARY

[0005] 本发明所要解决的技术问题是提供一种多业务接入的数字全光分布式系统,为用户提供2G、3G、4G无线信号接入服务的同时,提供局域网WLAN、固网宽带等服务。 [0005] The present invention solves the technical problem is to provide a multi-service digital all-optical access distributed system, to provide users with 2G, 3G, 4G wireless signal access and services while providing local area network WLAN, fixed broadband service.

[0006] 本发明的技术方案为一种多业务接入的数字全光分布式系统,包括接入单元、拓展单元和拉远单元, [0006] aspect of the present invention is a multi-service digital all-optical access distributed system, including access units, expansion units, and remote units,

接入单元和拓展单元通过光纤连接,拓展单元和拉远单元通过光纤连接;接入单元或拓展单元连接网络,拉远单元连接网络; Access units and expansion units are connected through an optical fiber, and means to expand the remote unit is connected by an optical fiber; or the expansion unit connected to the access network unit, remote units connected to the network;

所述接入单元包括射频处理单元Ul、数字处理单元U2、供电单元U3,变频单元Ul和数字处理单元U2连接组成上下行链路,供电单元U3向射频处理单元Ul和数字处理单元U2分别供电; The access unit comprises a radio frequency processing unit Ul, U2 digital processing unit, the power supply unit U3, Ul conversion unit and a digital processing unit U2 connected to form uplink and downlink, power supply unit supplies power to the RF processing unit U3 and Ul, respectively, the digital processing unit U2 ;

所述拓展单元包括数字处理单元U4、供电单元U5,数字处理单元U4独立组成上下行链路,供电单元U5向数字处理单元U4供电; The expansion means comprises a digital processing unit U4, U5 power supply unit, composed of a digital processing unit U4 independently the uplink and downlink, power supply unit U5 to the digital processing unit U4;

所述拉远单元包括数字处理单元U6、射频处理单元U7、以太网信号处理单元U8、天线单元U9和供电单元U10,数字处理单元U6、射频处理单元U7和天线单元U9依次连接组成上下行链路,以太网信号处理单元U8与数字处理单元U6、射频处理单元U7分别连接,供电单元UlO向数字处理单元U6、射频处理单元U7和以太网信号处理单元U8分别供电。 The remote unit comprises a digital processing unit U6, U7 RF processing unit, an Ethernet signal processing unit U8, U9 antenna unit and a power supply unit U10, the digital processing unit U6, U7 RF processing unit and the antenna unit U9 are sequentially connected to form upper and lower chain lines way, the Ethernet signal processing unit and a digital processing unit U8 U6, U7 are connected to a radio frequency processing unit, a power supply unit UlO to the digital processing unit U6, U7 RF processing unit and the Ethernet signal processing unit U8 are powered.

[0007] 而且,所述网络为局域网WLAN或固网宽带。 [0007] Further, the network is a local area network WLAN or a fixed broadband.

[0008] 而且,接入单元连接网络时, [0008] Further, an access network connection means,

下行链路中,信源发送的2G或3G或4G无线信号进入接入单元后,通过射频处理单元Ul将下行射频信号转换为下行中频信号;数字处理单元U2将下行中频信号处理变换为基带信号,并与输入的以太网信号重新组帧,然后转换为光信号后传输给拓展单元; In downlink, a 2G or 3G or 4G wireless signals transmitted by the source into the access unit, through the RF processing unit Ul downlink RF signals into downlink intermediate frequency signal; a digital processing unit U2 downlink intermediate frequency signal into a baseband signal processing and re-framing the input signal to the Ethernet, and then transmitted to the expansion unit into an optical signal;

上行链路中,由拓展单元进入接入单元的光信号转换为数字信号后进入数字处理单元U2;数字处理单元U2分离出基带信号和以太网信号,其中以太网信号输出,基带信号经数字处理后转换为上行中频信号;射频处理单元Ul将上行中频信号变频为上行射频信号,并采用无线传播的方式传回信源。 The uplink, the expansion unit into the access unit of the optical signal is converted into the digital signal after the digital processing unit U2; digital processing unit U2 separated baseband signal and the Ethernet signal, wherein the Ethernet signal output, the digital baseband signal processing after the intermediate frequency signal is converted to an uplink; uplink RF processing unit Ul IF signal converted to upstream RF signal, and the wireless transmission mode propagating back to the source.

[0009] 扩展单元连接网络时, When the [0009] expansion unit connected to the network,

下行链路中,接入单元输入到扩展单元的光信号转换成下行数字信号后进入数字处理单元U4 ;数字处理单元U4将下行数字信号与输入的下行宽带信号合路并重新组帧,转换为光信号后从各端口传送到拉远单元; After the downlink, the access units into a downlink optical signal is converted into a digital signal processing expansion unit into the digital unit U4; digital processing unit U4 downlink wideband downlink signal combiner and the input digital signal framing and re-converted to transmitting optical signals from each port to the remote unit;

上行链路中,拉远单元输出到扩展单元的光信号转换成上行数字信号后进入数字处理单元U4 ;数字处理单元U4将各端口输入的上行数字信号分解为上行宽带信号和上行无线数字信号,其中上行宽带信号输出,上行无线数字信号进行合路后重新组帧,然后转换为光信号后传送到接入单元; The uplink, the remote unit outputs the converted optical signal to the expansion unit into upstream digital signal into the digital processing unit U4; digital processing unit U4 decomposed upstream digital signal of each input port and an uplink signal is an uplink wideband digital radio signals, wherein the uplink wideband output signal, the uplink radio digital signal combiner re-framing, and then transmitted to the access unit into an optical signal;

扩展单元与拉远单元之间传输时,在拉远单元传输方式如下, When transmission between the extension unit and remote unit, the remote unit transmission as follows,

下行链路中,由拓展单元传输的光信号转换为数字信号后进入数字处理单元U6,;数字处理单元U6分离出基带信号和以太网信号,其中以太网信号传输给以太网信号处理单元U8,基带信号经数字处理后转换为下行中频信号,射频处理单元U7将下行中频信号变频为下行射频信号,并通过天线单元U9辐射到空间中; Downlink, converts the optical signal transmission unit to expand the digital signal into the digital processing unit ,; digital processing unit U6 U6 separated baseband signal and the Ethernet signal, wherein the Ethernet signal to the Ethernet signal processing unit U8, after processing the baseband signal converted by the digital intermediate frequency signal into a downlink, the downlink RF processing unit U7 downlink IF signal converted to RF signals, and radiated into space via the antenna unit U9;

上行链路中,无线信号由天线单元U9接收进入拉远单元后,通过射频处理单元U7将上行射频信号转换为上行中频信号;数字处理单元U6将上行中频信号变换为基带信号,并与以太网信号处理单元U8传输的以太网信号重新组帧,然后转换为光信号后传输给拓展单 After the uplink, the wireless signal received by the antenna unit U9 remote unit enters, through the radio frequency processing unit U7 uplink RF signals into IF uplink signal; a digital processing unit U6 uplink IF signal into a baseband signal, and Ethernet the signal processing unit U8 Ethernet signal re-transmitted group frames, and transfers both to expand into an optical signal after a single

J Li o J Li o

[0010] 而且,以太网信号处理单元U8提供直流电。 [0010] Furthermore, the Ethernet signal processing unit U8 supply DC.

[0011] 而且,接入单元和拓展单元、拓展单元和拉远单元之间基于CPRI标准协议的帧格式进行组帧传输。 [0011] Moreover, the access unit and the expansion unit, remote units and expansion for framing unit between the transmission frame format based on the CPRI standard protocol.

[0012] 而且,通过拓展单元和拉远单元建立星型、链型、环形或混合的组网。 [0012] Furthermore, the unit establishes star, chain, ring, or mixed networks by expanding and remote units.

[0013] 而且,接入单元、拓展单元和拉远单元采用五类线连接网络。 [0013] Further, access unit, remote units and expansion units connected to the network using the five lines.

[0014] 而且,设置两个或以上接入单元,接入单元不共址。 [0014] Further, two or more access units, an access unit is not co-located.

[0015] 而且,设置切换单元和两个接入单元,接入单元和切换单元之间采用射频电缆和光纤连接,切换单元和拓展单元之间采用光纤连接, [0015] Moreover, radio-frequency cables and optical fiber connection is provided between the switching unit and two access units, an access unit and a switching unit, a switching unit connected by optical fibers and the expansion unit,

所述切换单元包括射频处理单元U11、光路单元U12、供电单元U13和监控控制单元U14,射频处理单元Ull平均分配进入切换单元的射频信号,均分后的射频信号分别与两个接入单元连接,监控控制单元U14连接光路单元U12,光路单元U12连接接入单元之一和扩展单元,根据监控控制单元U14信号切换连接另一接入单元;供电单元U13向射频处理单元U11、光路单元U12和监控控制单元U14分别供电。 Said switching unit comprises a radio frequency processing unit U11, U12 optical path means, the power supply unit and the monitoring control unit U13 U14, Ull average RF processing unit dispensed into a radio frequency signal switch unit, the radio frequency signals are respectively connected to the two average access unit , the monitoring control unit connected to the optical path unit U14 U12, U12 one optical path means connected to the access unit and the extension unit, according to the monitoring control unit U14 is connected to another access unit switch signal; a power supply unit to the radio frequency processing unit U13 U11, U12, and the optical path unit U14 power monitoring control unit, respectively.

[0016] 而且,天线单元U9采用微型掩蔽的单极化多频天线。 [0016] Further, the antenna unit U9 unipolar tiny masked multi-frequency antenna.

[0017] 本发明的技术方案多业务接入的数字全光分布式系统各个单元之间全部采用光纤连接,克服五类线传输只有IOOm的距离劣势,可以利用ONU (光节点)驻地网络资源拉远覆盖,同时,系统支持最新的LTE网络,在数据业务上是一大提升,多种业务的接入输出的传输方式,满足运营商多网共建共享的要求,而且设计上采用接入单元不共址接入的设计,组网更灵活,复用不共址基站达到同覆盖的效果。 [0017] between the respective unit of the digital aspect of the present invention, multi-service access distributed system all of the all-optical fiber connections to overcome only five lines transmitting distance IOOm disadvantage may utilize the ONU (optical node) pull-premises network resources distance coverage, the same time, the system supports the latest LTE network, data traffic on a major upgrade, transmission output access multiple services to meet multiple network operators sharing requirements, the design and the use of the access unit design not co-access, network more flexible and not co-sited base stations multiplexed achieve the same coverage. 具体而言,具有以下效果: Specifically, it has the following effects:

I)支持2G、3G、LTE、WLAN、固网宽带等多业务的新型分布系统,用于2G/3G/LTE/WLAN/固网等无线通信信号深度覆盖。 I) a distribution system to support new 2G, 3G, LTE, WLAN, fixed broadband and other services for 2G / 3G / LTE / WLAN / fixed depth of coverage, etc., wireless communication signals.

[0018] 2)接入单元支持热备份,解决因接入单元故障导致的整个分布式系统瘫痪问题。 [0018] 2) the access unit supports hot backup, address the entire distributed system access unit failure problems due to paralysis.

[0019] 3)多业务系统,解决了多网共存问题,有利于运营商共建共享。 [0019] 3) multi-service system to solve the problem of the coexistence of multiple networks will help operators sharing.

[0020] 4)多业务系统,解决了基站不共址,覆盖区又需要多业务覆盖的要求,可以不需要搬迁基站。 [0020] 4) multi-service system to address the base station does not co-located, multi-service coverage area and the need to cover the requirements, it can not require the relocation of the base station.

[0021] 5)接入单元和拓展单元均支持WLAN、固网宽带业务的输入,接入方式多样。 [0021] 5) the access unit and the expansion unit are input to support WLAN, fixed broadband services, access diverse.

[0022] 6)拉远单元集成微型单极化多频天线,不需另建天馈网络系统。 [0022] 6) remote units are integrated miniature single pole multi-band antenna without antenna feeder build another network system.

[0023] 7)拉远单元给WLAN_AP供电满足POE接口协议,解决了WLAN_AP供电烦恼。 [0023] 7) remote units to meet the power WLAN_AP POE interface protocol, to resolve the trouble WLAN_AP power.

[0024] 8)多业务系统,解决了任何组网方式的需求,接入单元支持星型组网,拓展单元支持星型组网和链型级联组网,拉远单元支持链型级联组网。 [0024] 8) multi-service system to address the needs of any networking, network access unit supports star, expanding the unit supports star network and chain cascade networking, remote unit support chain cascade networking.

附图说明 BRIEF DESCRIPTION

[0025] 图1是本发明实施例的多业务数字全光分布式系统主体链路图。 [0025] FIG. 1 is a digital multi-service embodiment of the present invention, all-optical link body distributed system of FIG.

[0026] 图2是本发明实施例的接入单元1+1热备份应用示意图。 [0026] FIG. 2 is an access unit of the embodiment of the present invention is 1 + 1 hot backup application schema.

[0027] 图3是本发明实施例的多业务数字全光分布式系统接入单元不共址的应用示意图。 [0027] FIG. 3 is a schematic diagram of digital multi-service application example of a distributed system all-optical access unit is not co-located embodiment of the present invention.

[0028] 图4是本发明实施例的接入单元内部实现构架图。 [0028] FIG. 4 is an internal access unit embodiment of the present invention is implemented framework embodiment in FIG.

[0029] 图5是本发明实施例的拓展单元内部实现构架图。 [0029] FIG. 5 is an internal expansion unit according to the present embodiment of the invention implemented architecture of FIG.

[0030] 图6是本发明实施例的拉远单元内部实现构架图。 [0030] FIG. 6 is an internal remote unit embodiment of the present invention achieves framework FIG.

[0031] 图7是本发明实施例的切换单元内部实现构架图。 [0031] FIG. 7 is an internal switching unit embodiment of the present invention is implemented architecture of FIG.

[0032] 具体实施方式 [0032] DETAILED DESCRIPTION

以下结合附图和实施例详细说明本发明技术方案。 The following detailed description and the accompanying drawings aspect of the invention embodiments.

[0033] 实施例提供的一种多业务接入的数字全光分布式系统,包括接入单元(AU)、拓展单元(EU)和拉远单元(RU),在需要热备份时还设置切换单元(SU)。 [0033] A multi-service access digital all-optical distributed system according to an embodiment, includes an access unit (AU), expansion units (EU) and a remote unit (RU), will also be required in the hot-standby switching provided unit (SU).

[0034] 如图1所示,主体链路中,接入单元和拓展单元通过光纤连接,拓展单元和拉远单元通过光纤连接,一般采用单模双向光纤连接;如图2所示,接入单元和切换单元之间采用射频电缆和光纤连接,切换单元和拓展单元之间采用光纤连接。 [0034] As shown in FIG. 1, the body link, the access unit and the expansion unit is connected by an optical fiber, and means to expand the remote unit is connected by an optical fiber, typically single mode fiber bidirectional connection; shown in FIG. 2, the access radio frequency cables and fiber optic connections between the unit and the switching unit, a switching unit connected by optical fibers and expansion unit.

[0035] 接入单元、拓展单元和拉远单元可以单独使用光纤连接,也可以利用已有的ONU光纤网络,实现数字基带信号传输。 [0035] The access unit, remote units and expansion units connected to the optical fiber may be used alone, an ONU can use existing fiber optic networks, digital baseband signals. [0036] 所述接入单元具有支持2G、3G、4G、固网宽带和WLAN等多业务功能,同时4G网络LTE支持2进2出的MMO (多入多出)技术。 The [0036] access unit has a supporting 2G, 3G, 4G, such as WLAN and fixed broadband multiservice functionality while supporting LTE 4G network 2 out of 2 MMO (MIMO) technology.

[0037] 所述的接入单元和拓展单元均可以连接局域网WLAN,固网宽带,具体实施时可以由本领域技术人员任意选择,用于传输无线接入业务、局域网业务和宽带业务,同时接入单元和拓展单元之间数据信号满足CPRI (通用公共无线接口)标准协议的帧格式传输。 [0037] The access unit and the expansion unit can be connected to a local area network WLAN, fixed broadband, may be arbitrarily selected by those skilled in the art the specific embodiments, for transmission in a wireless access service, a local area network services and broadband services access simultaneously between the expansion unit and the data signal satisfying CPRI frame format of the transmission unit (common public radio Interface) standard protocol.

[0038] 所述的切换单元在需要接入单元支持1 + 1热备份的场景下使用,通过接入单元传输的监控信息智能判断切换状态。 [0038] The switching unit requires access unit to support scenario 1 + 1 hot backup use, intelligent information by monitoring the switching state determining unit for transmission access.

[0039] 所述的拓展单元和拉远单元可设置光收发接口和用于级联的光拓展接口(一般有8个),在满足深度覆盖的同时,可以实现星型、链型、环形和混合的组网。 Expand and pull the unit [0039] The distal optical transceiver unit may be provided for cascading optical interfaces and expansion interfaces (usually eight), while satisfying the depth of coverage can be achieved star, chain, ring and hybrid networking. 拉远单元与拉远单元之间采用光纤连接即可。 Remote unit connected to the optical fiber between the remote unit and used.

[0040] 所述的全光分布式系统在满足全光组网的同时,拓展单元和拉远单元还支持五类线传输的可选方案。 [0040] The all-optical distributed system while satisfying all-optical networking, remote units and expansion units further supports the alternative transmission five lines. 通过五类线连接到瘦WLAN_AC系统,瘦WLAN_AC系统分为AC和AP两部分组成,在图中分别记为WLAN_AC、WLAN_AP。 Connected by five lines to the thin WLAN_AC system, thin WLAN_AC AC system is divided into two parts and AP, were recorded as WLAN_AC, WLAN_AP in FIG. AC是无线控制器,在无线局域网和外部网之间充当网关功能,可与接入单元或拓展单元连接;AP是无线接入点,是移动计算机用户进入有线网络的接入点,可与拉远单元连接。 AC is the wireless controller, the function acts as a gateway between the wireless LAN and the external network, can be connected to the access unit or expansion unit; the AP is a wireless access point, a mobile computer user enters a wired network access points, with pull remote unit connections.

[0041] 所述的接入单元和拓展单元可以对连接的局域网WLAN,固网宽带透传的同时,各自对信号支持交换功能,接入单元和拓展单元可以对一路以太网输入的信号,通过交换转变成多路数字光纤基带信号输出给拉远单元,拉远单元在同一条链路上的以太网业务也支持交换路由功能,即链型、星型、环形和混合等形式组网连接的每一台RU单元都可以接入固网宽带和瘦WLAN_AP系统,且拉远单元支持瘦WALN_AP业务回传和供电。 [0041] The access unit and the expansion unit can be connected to the local area network WLAN, fixed broadband while transparent transmission, the signal support for each signal switching function, the access unit and the expansion unit may input one Ethernet, by switching into a multi-channel digital baseband signal to output fiber remote unit, remote units on the same Ethernet link traffic routing function supports switching, i.e., chain, star, loop, and other forms of mix network connection each RU units can access the fixed broadband and lean WLAN_AP systems, and remote service unit supports thin WALN_AP supply and return.

[0042] 所述的接入单元可以满足1 + 1备份的功能,当其中一端接入单元故障和光收发异常时,另一个接入单元通过热备份的方式实现备份切换。 [0042] The access unit may fulfill the functions 1 + 1 backup, wherein when an end of the optical transceiver and the access unit failure abnormality, the backup switch to another access unit is implemented by means of hot backup.

[0043] 所述的接入单元可以满足接入单元不供址的功能,解决多网异站不共址的问题,实现复杂多功能组网和大型组网异站同覆盖的要求。 [0043] The access unit does not satisfy the access function for the access units, to solve the problems of multi-network station not co-located isobutyl, realize multi-functional complex networking requirements and large networks with different coverage station.

[0044] 所述的拉远单元RU集成微型掩蔽的单极化多频天线实现覆盖要求。 [0044] the remote units RU integrated micro masked unipolar achieve multiband antenna coverage requirements.

[0045] 本发明的工作原理: [0045] The working principle of the invention:

I)接入信号传输原理 I) the access signal transmission principle

以拓展单元连入局域网WLAN或固网宽带为例,进行说明: To expand the unit connected to the LAN or WLAN fixed-line broadband, for example, explained:

下行过程中接入单元从信源(RRU或微蜂窝基站端等)接入多种业务的下行射频信号,经过射频处理单元Ul后变成下行中频信号,并把下行中频信号变换为数字信号,通过数字处理单元U2将其打包成适合标准接口协议(如CPRI)要求的帧格式后,将相应光信号传送到拓展单元,拓展单元(EU)接收光信号后转换得到下行数字信号,在数字处理单元U4与ONU或者AC输出的下行宽带信号合路,合路后的数字信号打包成适合标准接口协议(如CPRI)要求的帧格式,并通过功分输出到多个光口(例如8个),将各路相应光信号传送到拉远单元。 Access unit downlink process from the access source (RRU or a microcell base station side, etc.) of a variety of business downlink RF signals through the RF post-processing unit Ul intermediate frequency signal into a downlink, and the downlink intermediate frequency signal into a digital signal, after digital processing unit U2 to be packaged into a suitable standard interface protocols (such as CPRI) requires a frame format, transmitting a corresponding optical signal to the expansion unit, expansion unit (EU), after receiving an optical signal converted downlink digital signal, digital processing unit U4 downlink wideband signal combiner ONU or AC output, the digital signal combiner packaged into suitable standard interface protocols (such as CPRI) frame format requirements, and power splitter outputs through a plurality of optical ports (e.g., eight) , transmits an optical signal corresponding to the brightest remote unit. 拉远单元接收光信号并转换基带数字信号送入数字处理单元U6,分离出基带数据,射频处理单元U7将下行中频信号变频为下行射频信号,经设备自带的天线单元U9发射至覆盖区域,达到信号覆盖的目的。 Remote unit receives the optical signal and converts the baseband digital signal into the digital processing unit U6, isolated baseband data, the RF processing unit U7 downlink IF signal frequency as a downlink radio frequency signal transmitted to the coverage area by the device's own antenna unit U9, the purpose of signal coverage. 拉远单元可以提供无线信号的接入,固网宽带和WLAN的功能。 Remote unit may provide wireless signal access, WLAN and fixed broadband function. 具体实施时,各单元具体模块可采用现有技术已有芯片实现。 In specific implementation, each of the unit modules may employ concrete existing prior art chip. 激光传输,光信号/数字信号变换、模拟/数字变换等都为现有技术,采用相应数字光纤收发器、A/D变换器等即可,本发明不予赘述。 Laser transmitter, an optical signal / digital signal conversion, analog / digital conversion and so the prior art, with the corresponding digital fiber optic transceivers, to A / D converter or the like, the present invention is not repeated here.

[0046] 上行过程中,来自手机用户的信号,由拉远单元中天线单元U9接收后,经射频处理单元U7变换为上行中频信号,通过基带信号处理单元将上行中频信号相应数字信号和与由路由器或者AC输出的上行宽带信号合路,合路后的数字信号以一定的帧格式进行重新组帧,再打包成适合标准接口协议(如CPRI)要求的帧格式后,将相应光信号传送到拓展单元。 [0046] The uplink process, the signal from the mobile phone user, upon receiving the remote antenna unit U9 unit via U7 converting the RF processing unit is an uplink IF signal, the baseband signal processing unit the uplink IF corresponding digital signals, and by the router or uplink wideband signal combiner AC output, the digital signal combiner for re-framing at a constant frame format, and then packaged into a suitable standard interface protocols (such as CPRI) after the requested frame format, transmitting the respective optical signals to expansion unit. 拓展单元实现光电转换,数字处理单元U4将每个端口接收的光信号相应上行数字信号分离为上行宽带基带信号和无线基带信号,上行宽带基带信号通过接口传输给ONU和AC,各端口上行无线基带信号通过合路后,相应光信号传送到接入单元。 Expansion unit implements photoelectric conversion, the digital processing unit U4 each port receives an optical signal corresponding upstream digital signal into an uplink wideband baseband signal and the wireless base band signal, an uplink wideband baseband signal to an ONU and AC, each port uplink wireless baseband interface to transfer after the signal through the combiner, the optical signal corresponding to the access unit. 接入单元将接收到的光信号相应基带数字信号送入数字处理单元U2,将其恢复成基带数据,经射频处理单元Ul后,传送回移动通信基站。 Access unit corresponding to the received optical signal is a baseband digital signal into the digital processing unit U2, which restores the data into a baseband by the RF post-processing unit Ul, transmitted back to the mobile communication base station.

[0047] 2)以太网信号传输原理 [0047] 2) Ethernet signal transmission principle

以接入单元接入局域网WLAN或固网宽带为例,进行说明: An access unit to access the fixed broadband local area network WLAN or an example will be described:

由外部接口WLAN_AC或固网宽带交换机进入的局域网信号和固网宽带信号数字化后的基带信号同时进入接入单元的数字处理单元U2,数字处理单元U2按照预定协议对两种信号重新组帧,通过数字光口用光纤传输给拓展单元,拓展单元支持上述业务信号的交换处理功能,通过数字处理单元U4将下行数字信号输出到8个光口,通过光纤传输给拉远单元,拉远单元通过数字处理单元U6解帧处理,通过以太网信号处理单元U8将分离的局域网业务和固网宽带业务传输给WLAN_AP和宽带MODEM。 Entering through the external interface WLAN_AC fixed broadband or LAN switch signal and the fixed broadband digitized baseband signal into the digital signal processing unit simultaneously access unit U2, the digital processing unit U2 re-framing of the two signals according to a predetermined protocol, by digital optical port with an optical fiber transmission to the expansion unit to expand the switching processing function unit support this service signals output by the digital processing unit U4 downlink digital signal to the 8 optical ports, optical fiber transmission to the remote unit, remote units via a digital frame processing solution processing unit U6, U8 Ethernet signal processing unit and the separate LAN service transmitted via a fixed broadband services and broadband WLAN_AP MODEM. 上行过程与之相应。 Up procedure corresponding thereto.

[0048] 3)接入单元不共址实现原理: [0048] 3) the access unit is not co-located implementation principle:

如图3所示,针对2G、3G和4G基站BTS不共址建设,但覆盖区又要满足多业务共同覆盖的情况下,该系统支持不共址的实现,同时接入的二个或二个以上的接入单元分别所连接的拉远单元均满足多业务覆盖的要求。 3, for the case of 2G, 3G and 4G construction of the base station BTS is not co-located, but have to meet multiple service coverage area of ​​common coverage, the system supports implementation does not co-located, simultaneously accessing two or di- more than one remote unit access units are connected to meet the requirements of multiple service coverage.

[0049] 多个接入单元同时在网的情况下,根据时钟同步问题,要设置主接入单元和从接入单元,主接入单元只有一端,从接入单元可以有多端。 [0049] The plurality of access units and even when the network, according to the clock synchronization, to set the main unit and the access from the access unit, only one end of the primary access unit, the access unit can have multiple end. 主接入单元和多个从接入单元彼此之间可选用一个光传输接口通过光纤连接。 A plurality of access units and the main units may be selected from an access each other via an optical fiber transmission interface.

[0050] 例如设置两个接入单元,包括一个主接入单元和一个从接入单元。 [0050] provided, for example two access units, including a master unit and one access from the access unit. 当两个接入单元都正常工作时,从站时钟自动同步上主站,信号正常覆盖。 When the two access units are working properly, automatically synchronizing a slave clock on the master station, normal signal coverage. 当主接入单元故障时,两个接入单元的通信终断,主从站时钟失步。 When the main access unit fails, communication between two access units terminating off, master and slave clock desynchronization. 此刻从接入单元将以自己的时钟作为时钟参考,可以保证从接入单元本身及所拖的拉远单元业务正常运行,有网络信号的覆盖效果,这个时候主接入单元所带的拉远单元将没有覆盖效果。 From the moment the access unit will own clock as a reference, can guarantee the access unit itself and the remote units dragged from the normal operation of the business, there is the effect of network signal coverage, the access time of the main unit remote brought unit will have no coverage. 由于主接入单元已经故障,因此从接入单元的拉远单元就只有一种覆盖业务,该业务即为从接入单元的接入业务。 Since the main access unit has failed, and therefore from the remote unit access unit there is only one covering business, which is the access unit from the access service. 另一方面,主接入单元的监控系统已经失效,由于所有的监控信号都是通过主接入单元上报给一个监控中心,导致了整个分布式系统的监控瘫痪。 On the other hand, the monitoring system has failed primary access unit, since all the signals are reported to a monitoring center via the primary access monitoring unit, resulting in paralysis of the entire distributed monitoring system. 当主接入单元掉电或者故障后,在备用电池供电期内主接入单元会将告警信息上报给监控中心,提供网络业务故障的依据。 When the access unit after the main power failure or malfunction is notified to the access unit in the main control center sends an alerting message during backup battery to provide network services based on fault. 多个从接入单元的情况也类似。 Similar to the case but also a plurality of access units.

[0051] 若主从接入单元时钟同步故障,主从接入单元会智能的以各自的时钟为主,主接入单元以主接入单元做时钟,从接入单元以从接入单元做时钟,他们各自独立不相干扰,物理上将多业务分布式系统分割成两个或多个单业务系统实现拉远覆盖。 [0051] If the main master clock from the access unit to the respective clock synchronization failure, the access from the master unit will be intelligent, primary access unit to access the main unit to make the clock, to make an access from the access unit from the unit clock, they do not interfere with each independently, physically distributed multi-service system is divided into two or more single remote service system to achieve coverage.

[0052] 4)接入单元1+1热备份实现原理如图2所示,从信源RRU、或微蜂窝基站端接入多种业务的射频信号,通过一个切换单元后,再分别接入两个接入单元,切换单元支持多业务信号的传输、光路的切换、监控信号的接收。 [0052] 4) 1 + 1 hot access unit shown in FIG, access a variety of services from the source the RRU, or a femtocell radio frequency signal terminal 2, through a switching unit, respectively, and then access the backup implementation principle two access units, a switching unit supports transmission of multiple traffic signal, switching optical paths, to monitor the received signal. 正常情况下,两个接入单元均从切换单元接收多种业务的射频信号,两个接入单元的光路均跟切换单元连接在一起,且都正常工作,拓展单元的光接口通过光纤跟切换单元连接,这种物理连接的状态下,只有一端接入单元跟拓展单元通信传输业务信号和监控信号,当其中的一路接入单元出现掉电告警或光发故障时,切换单元通过有故障的接入单元反馈的监控信号,实现光口的切换,此时,带故障的接入单元跟切换单元的光口连接断开,另一路接入单元在同一时刻跟拓展单元实现光路的连接,传输数字基带信号给拓展单元,实现接入单元的热切换备份功能。 Normally, the two access units are received from the plurality of traffic radio frequency signal switch unit, the optical path of the two access units are connected together with the switching unit, and are working properly, by expanding an optical fiber interface of the optical unit with the switching lower connecting means, the physical connection state, only one end of the expansion unit communication access units transmit traffic signals and the supervisory signal, wherein when the access unit all the way down alarm occurs or light engine failure, the switching unit by faulty monitoring the feedback signal access unit to achieve an optical switch port, at this time, the optical switching unit port access units with disconnection failure, the other path to achieve access unit connecting the optical paths at the same time with the expansion unit, transmission a digital baseband signal to the expansion unit, the access unit switches to achieve thermal backup. 该过程系统可全部自动完成,解决了因接入单元设备故障、激光器故障或电源故障所带来的需要工程人员实地维护的烦恼,实用于一些偏远的站点和业务量大不允许出现故障的站点。 The system can process all done automatically solve the access unit due to equipment failure, lasers or power failure caused by field engineers need to worry about maintenance, utilities in some remote business sites and large sites do not allow failure . 同时由于多业务接入的数字分布式系统一台接入单元可以支持至少128台拉远单元的业务,为了保证大量的拉远单元不至于在同一时刻出现业务故障,该功能充分解决了这一工程实践使用问题。 And because of the digital multi-service access distributed system with an access unit can support at least 128 service stations remote unit, in order to ensure a large number of remote units to business failure and will not appear at the same time, this function adequately address this the use of engineering practice.

[0053] 5)拉远单元传输给WLAN_AP供电共业务的实现原理 [0053] 5) remote units transmit power to the principles of total service implemented WLAN_AP

拉远单元将接入单元或拓展单元传输过来的WLAN业务通过设备自带的接口,采用五类线或超五类线的四对双绞线方式传输给WLAN_AP单元,并通过铺设的入户网线(五类线或超五类线)为用户提供百兆宽带接入服务。 Remote unit, the expansion unit or access unit transmitted by the WLAN traffic comes via the device interface, using four pairs five lines or five lines in a manner to WLAN_AP transmitting unit, and by laying down the cable households (five lines or five lines) to provide users with access to Fast broadband services. 在传输百兆以太网数据时,仅需要使用I和2、3和6两对双绞线,供电双绞线为4和5,7和8两对双绞线提供,4和5链接形成正极,7和8链接形成负级,由拉远单元提供给WLAN_AP的F1D模块(Power Device,受电端设备)。 Fast Ethernet data in the transmission, and I only need to use two twisted pairs 2, 3 and 6, the power supply to the twisted pair 4 and 5, 7 and 8 provide two twisted pairs, are concatenated to form a positive electrode 4 and 5 7 and 8 are concatenated to form a negative level, to provide a F1D WLAN_AP modules (power device, the receiving end equipment) by the remote unit. 解决了WLAN_AP本地取电或独立的POE供电的烦恼。 Resolved to take power WLAN_AP local or independent POE power supply troubles.

[0054] 为便于实施参考起见,提供实施例中接入单元、拓展单元、拉远单元和切换单元的电路结构说明如下: DESCRIPTION circuit configuration [0054] To facilitate reference, provide access unit embodiment embodiment, expansion unit, remote units and the switching units is as follows:

1、接入单元 1, access unit

如图4,接入单元包括射频处理单元U1、数字处理单元U2、供电单元U3。 4, the radio frequency processing unit access unit U1, the digital processing unit U2, U3 comprises a power supply unit shown in FIG.

[0055] 其连接关系是: [0055] connected relationship:

变频单元Ul和数字处理单元U2连接组成上下行链路; Ul frequency unit and a digital processing unit U2 connected to form uplink and downlink;

供电单元U3分别连接其它单元(变频单元U1、数字处理单元U2),提供能量。 Power supply unit U3 are connected to other units (frequency conversion unit U1, the digital processing unit U2), to provide energy.

[0056] 其工作原理是: [0056] The working principle is:

下行链路中,2G/3G/4G无线信号进入接入单元后,通过射频处理单元Ul将下行射频信号转换为下行中频信号,数字处理单元U2将下行中频信号经过处理后变换为基带信号,并与WLAN_AC或ONU传输进入的以太网信号重新组帧,然后转换为光信号后传输给拓展单元。 Downlink, 2G / 3G / 4G wireless access units into the signal by the RF processing unit Ul downlink RF signals into downlink intermediate frequency signals, the digital processing unit U2 after the downlink IF signal into a baseband signal processing, and re-set or the ONU transmission frame WLAN_AC incoming Ethernet signal, and then transmitted to the expansion unit into an optical signal. WLAN_AC传输以太网信号为无线方式,ONU传输以太网信号为有线方式。 WLAN_AC wireless transmission of Ethernet signals, ONU wired Ethernet signal transmission mode.

[0057] 同理,上行链路中,由拓展单元传输的光信号,转换为数字信号。 [0057] Similarly, in the uplink, a transmission optical signal expansion unit, into a digital signal. 数字处理单元U2分离出基带信号和以太网信号,其中以太网信号传输给WLAN_AC或0NU,基带信号经数字处理后转换为上行中频信号。 The digital processing unit U2 separated baseband signal and the Ethernet signal, wherein the Ethernet signal to WLAN_AC or 0NU, the uplink IF signal is converted into a baseband digital signal processing. 射频处理单元Ul将上行中频信号变频为上行射频信号,并采用无线传播的方式传回基站。 RF processing unit Ul uplink IF signal converted to upstream RF signal, and wireless base station transmitted back propagation.

[0058] 供电单元U3获取外部能量,并分别给变频单元Ul和数字处理单元U2提供能量。 [0058] The power supply unit U3 acquires external energy, respectively, to the inverter unit and a digital processing unit Ul and U2 provide energy.

[0059] 以上为接入单元连接网络时的工作原理,若接入单元不接入局域网WLAN或固网宽带,以太网信号由拓展单元处理,与以上工作过程不同的是,数字处理单元U2只处理基带信号: [0059] The above is the operation principle of the access units connected to the network, if the access unit is not fixed broadband access to local area network WLAN or Ethernet signal processing by the expansion unit, unlike the above working process, the digital processing unit U2 only baseband signal processing:

下行链路中,信源发送的2G/3G/4G无线信号进入接入单元后,通过射频处理单元Ul将下行射频信号转换为下行中频信号;数字处理单元U2将下行中频信号处理变换为基带信号,重新组帧后转换为光信号后传输给拓展单元; In the downlink, the 2G / 3G / 4G wireless signals transmitted from the source into the access unit, through the RF processing unit Ul downlink RF signals into downlink intermediate frequency signal; a digital processing unit U2 downlink intermediate frequency signal into a baseband signal processing after re-framing after transfer into an optical signal to the expansion unit;

上行链路中,由拓展单元进入接入单元的光信号转换为数字信号后进入数字处理单元U2 ;数字处理单元U2提取得到的基带信号经数字处理后转换为上行中频信号;射频处理单元Ul将上行中频信号变频为上行射频信号,并采用无线传播的方式传回信源。 The uplink, the expansion unit into the access unit of the optical signal is converted into the digital signal after the digital processing unit U2; uplink IF signal is converted to a digital processing unit U2 extracted baseband signal obtained by digital processing; Ul the RF processing unit an uplink IF signal converted to upstream RF signal, and transmitted by way of radio transmission back to the source.

[0060] 2、拓展单元 [0060] 2, expansion means

如图5,拓展单元包括数字处理单元U4、供电单元U5。 5, expansion unit U4 includes a digital processing unit, a power supply unit U5.

[0061] 其连接关系是: [0061] connected relationship:

数字处理单元U4独立组成上下行链路; The digital processing unit U4 separate composition for uplink and downlink;

供电单元U5连接数字处理单元U4,提供能量。 Connected to the power supply unit U5 digital processing unit U4, to provide energy.

[0062] 其工作原理是: [0062] The working principle is:

下行链路中,接入单元传输的光信号,转换成下行数字信号后进入数字处理单元U4。 In the downlink, the access unit for transmission of optical signals, after conversion to the downlink digital signal into the digital processing unit U4. 数字处理单元U4将下行数字信号与ONU或者AC输出的下行宽带信号合路,合路后的数字信号以一定的帧格式进行重新组帧,并打包成适合标准接口协议(如CPRI)要求的帧格式后,并分别传输到各个输出接口,再由数字光纤收发器、数字光纤将相应光信号传送到拉远单 The digital processing unit U4 the downlink digital signal and the ONU or the downlink wideband signal combiner AC output, the digital signal combiner for re-framing at a constant frame format, and packaged into a suitable standard interface protocols (such as CPRI) requested frame after the format, and are transmitted to the respective output port, and then by the digital fiber optic transceivers, digital optical signals to corresponding optical transmitting remote single

J Li ο J Li ο

[0063] 同理,上行链路中,拉远单元通过数字光纤传输的光信号转换为上行数字信号,传输到数字处理单元U4。 [0063] Similarly, the uplink, the remote unit via an optical fiber transmission signal into a digital uplink digital signal, transmitted to the digital processing unit U4. 数字处理单元U4将各端口传输的上行数字信号分解为上行宽带信号和上行无线数字信号,其中上行宽带信号通过各接口传输进入OUN或者AC,上行无线数字信号进行合路后,打包成适合标准接口协议(如CPRI)要求的帧格式后,再由数字光纤收发器、数字光纤将相应光信号传送到接入单元。 After digital processing unit U4 the upstream digital signal of each port transmission is decomposed into an uplink wideband signal and an uplink wireless digital signals, wherein the uplink wideband signal of each interface to transfer into the OUN or AC, the uplink radio digital signal combiner, packaged into suitable standard interface after the protocol (such as CPRI) frame format requirements, and then by the digital fiber optic transceivers, digital optical transmitting respective optical signals to the access unit.

[0064] 供电单元U5获取外部能量,并给数字处理单元U4提供能量。 [0064] The power supply unit U5 acquires external energy, and the energy provided to the digital processing unit U4.

[0065] 以上为拓展单元连接网络时的工作原理,若拓展单元不接入局域网WLAN或固网宽带,以太网信号由接入单元处理,与以上工作过程不同的是,数字处理单元U4只需传递下行数字信号或上行数字信号: [0065] The above is the operation principle of expansion units connected to the network, if the expansion unit is not local area network WLAN or a fixed broadband access, Ethernet access by the signal processing unit, unlike the above working process is simply a digital processing unit U4 transmitting a downlink or uplink digital signal digital signal:

下行链路中,接入单元输入到扩展单元的光信号转换成下行数字信号后进入数字处理单元U4 ;数字处理单元U4将下行数字信号重新组帧,转换为光信号后从各端口传送到拉远单元; In the downlink, the access unit inputted to the optical signal into the digital expansion unit is converted into a processing unit U4 downlink digital signal; a digital processing unit U4 downlink re-framing the digital signal, transmitted from each port to convert optical signals to pull remote units;

上行链路中,拉远单元输出到扩展单元的光信号转换成上行数字信号后进入数字处理单元U4 ;数字处理单元U4将各端口输入的上行数字信号进行合路后重新组帧,然后转换为光信号后传送到接入单元。 After the uplink, the remote unit is output to the upstream optical signal into a digital signal processing expansion unit into the digital unit U4; digital processing unit U4 the upstream digital signal of each input port to re-set after a road frame, and then converted to after the optical signal to the access unit.

[0066] 3、拉远单元 [0066] 3, remote units

如图6,拉远单元包括数字处理单元U6、射频处理单元U7、以太网信号处理单元U8、天线单元U9和供电单元U10。 6, remote unit comprises U7, the Ethernet signal processing unit U8, U9 antenna unit and the power supply unit U10 digital processing unit U6, the RF processing unit. 天线单元U9可采用微型掩蔽的单极化多频天线。 Single-polarized antenna element may employ micro U9 masked multi-frequency antenna.

[0067] 其连接关系是: [0067] connected relationship:

数字处理单元U6、射频处理单元U7和天线单元U9依次连接组成上下行链路,以太网信号处理单元U8与数字处理单元U6、射频处理单元U7分别连接; 供电单元Uio分别连接其它单元(数字处理单元U6、射频处理单元U7和以太网信号处理单元U8),提供能量。 Digital processing unit U6, U7 RF processing unit and the antenna unit U9 are sequentially connected to form uplink and downlink, the Ethernet signal processing unit and a digital processing unit U8 U6, U7 are connected to the RF processing unit; Uio supply unit are connected to other units (digital processing unit U6, U7 RF processing unit and the Ethernet signal processing unit U8), it provides energy.

[0068] 其工作原理是: [0068] The working principle is:

下行链路中,由拓展单元传输的光信号,转换为数字信号。 In downlink, to expand the optical signal transmission unit, into a digital signal. 数字处理单元U6分离出基带信号和以太网信号,其中以太网信号传输给以太网信号处理单元U8,基带信号经数字处理后转换为下行中频信号。 Separating the digital processing unit U6 baseband signal and the Ethernet signal, wherein the Ethernet signal to the Ethernet signal processing unit U8, the baseband signal is digitally processed intermediate frequency signal is converted to a downlink. 射频处理单元U7将下行中频信号变频为下行射频信号,并通过天线单元U9辐射到空间中。 RF processing unit U7 downlink IF signal converted to a radio frequency downlink signal, and radiated into space via the antenna unit U9.

[0069] 同理,上行链路中,无线信号由天线单元U9接收进入拉远单元后,通过射频处理单元U7将上行射频信号转换为上行中频信号,数字处理单元U6变换上行中频信号为基带信号,并与以太网信号处理单元U8传输的以太网信号重新组帧,然后转换为光信号后传输给拓展单元。 After [0069] Similarly, the uplink wireless signal received by the antenna unit U9 remote unit enters, through the radio frequency processing unit U7 uplink RF signals into IF uplink signal, converting the digital processing unit U6 uplink IF signal into a baseband signal and re-framing the Ethernet signal processing unit U8 Ethernet signal transmission, and then transmitted to the expansion unit into an optical signal.

[0070] 以太网处理单元U8可通过以太网或无线局域网(WLAN_AP)提供宽带上网,无线路由、直流供电等功能。 [0070] Ethernet processing unit U8 provides broadband Internet access, wireless router, etc. DC power supply through an Ethernet or wireless LAN (WLAN_AP).

[0071] 供电单元UlO获取外部能量,并分别给数字处理单元U6、射频处理单元U7、以太网信号处理单元U8提供能量。 [0071] The power supply unit UlO acquires external energy, and U6, respectively, to the digital processing unit, a radio frequency processing unit U7, U8 Ethernet signal processing unit to provide energy.

[0072] 4、切换单元 [0072] 4, the switching unit

如图7,切换单元包括射频处理单元U11、光路单元U12、供电单元U13和监控控制单元 7, the switching unit comprises a radio frequency processing unit U11, U12 optical path means, the power supply unit and the monitoring control unit U13

U14。 U14.

[0073] 其连接关系是: [0073] connected relationship:

监控控制单元U14连接光路单元U12, The monitoring control unit connected to the optical path unit U14 U12,

供电单元U13分别连接其它单元(光路单元U12和监控控制单元U14),提供能量。 The power supply unit are connected to other units U13 (U12 light path unit and the monitoring control unit U14), provide energy.

[0074] 其工作原理是: [0074] The working principle is:

射频处理单元Ull平均分配进入设备的2G/3G/4G射频信号,均分后的射频信号通过接口分别与两个接入单元连接,图中记为接入单元1、接入单元2。 RF processing 2G / 3G / 4G radio frequency signal into the dispensing unit Ull average device, radio frequency signals via the interface sharing two access units respectively, in FIG. 1 referred to as access unit, access unit 2.

[0075] 光路单元U12分别与两个接入单元和一个扩展单元连接。 [0075] The optical path unit U12 is connected to the two access units and one extension unit. 正常情况下,光路单元U12实现接入单元I和扩展单元之间信息转发。 Normally, the optical path between the information transfer means U12 realized I access unit and the extension unit. 当监控控制单元U14收到接入单元I的告警信息后,控制光路单元U12进行信号切换,实现接入单元2和扩展单元之间的信息转发。 When the monitoring control unit U14 receives alarm information access unit I, the optical path control U12 signal switching unit, to realize the forwarding of information between the access unit and the extension unit 2.

[0076] 供电单元U13获取外部能量,并分别给光路单元U12和监控控制单元U14提供能量。 [0076] U13 acquires external energy supply unit, and each light path to the control unit and the monitoring unit U12 U14 provides energy.

[0077] 各单元具体实现可采用现有技术的已有电路器件。 [0077] Each unit has a circuit device can be embodied in the prior art.

[0078] 本文中所描述的具体实施例仅仅是对本发明精神作举例说明。 Specific Example [0078] described herein is merely illustrative for spirit of the invention. 本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。 Those skilled in the art of the present invention can be made to the specific embodiments described various modifications or additions, or a similar alternative embodiment, but without departing from the spirit of the invention or exceed defined in the appended claims range.

Claims (10)

1.一种多业务接入的数字全光分布式系统,其特征在于:包括接入单元、拓展单元和拉远单元, 接入单元和拓展单元通过光纤连接,拓展单元和拉远单元通过光纤连接;接入单元或拓展单元连接网络,拉远单元连接网络; 所述接入单元包括射频处理单元Ul、数字处理单元U2、供电单元U3,变频单元Ul和数字处理单元U2连接组成上下行链路,供电单元U3向射频处理单元Ul和数字处理单元U2分别供电; 所述拓展单元包括数字处理单元U4、供电单元U5,数字处理单元U4独立组成上下行链路,供电单元U5向数字处理单元U4供电; 所述拉远单元包括数字处理单元U6、射频处理单元U7、以太网信号处理单元U8、天线单元U9和供电单元U10,数字处理单元U6、射频处理单元U7和天线单元U9依次连接组成上下行链路,以太网信号处理单元U8与数字处理单元U6、射频处理单元U7分别连接 A digital all-optical multi-service access distributed system comprising: a access unit, expansion unit and remote units, access units and expansion units are connected through an optical fiber, expanding means through an optical fiber and remote unit connection; access unit or expansion unit connected to the network, remote units connected to the network; the access unit comprises a radio frequency processing unit Ul, the digital processing unit U2, U3 power supply unit, conversion unit and a digital processing unit Ul U2 connected to form a vertical row chain path, a radio frequency power supply unit U3 to the processing unit Ul and U2 respectively supply the digital processing unit; said expanding means comprises a digital processing unit U4, U5 power supply unit, composed of a digital processing unit U4 independently the uplink and downlink, power supply unit U5 to the digital processing unit U4 supply; the remote unit comprises a digital processing unit U6, U7 RF processing unit, an Ethernet signal processing unit U8, U9 antenna unit and a power supply unit U10, the digital processing unit U6, U7 and a radio frequency processing unit are sequentially connected to form the antenna unit U9 the uplink and downlink, the Ethernet signal processing unit and a digital processing unit U8 U6, U7 are connected to the RF processing unit 供电单元UlO向数字处理单元U6、射频处理单元U7和以太网信号处理单元U8分别供电。 The power supply unit UlO to the digital processing unit U6, U7 RF processing unit and the Ethernet signal processing unit U8 are powered.
2.按权利要求1所述的一种多业务接入的数字全光分布式系统,其特征在于:所述网络为局域网WLAN或固网宽带。 Claim 2. A multi-service access number of all-optical distributed system of claim 1, wherein: the network is a local area network WLAN or a fixed broadband.
3.按权利要求2所述的一种多业务接入的数字全光分布式系统,其特征在于: 接入单元连接网络时, 下行链路中,信源发送的2G或3G或4G无线信号进入接入单元后,通过射频处理单元Ul将下行射频信号转换为下行中频信号;数字处理单元U2将下行中频信号处理变换为基带信号,并与输入的以太网信号重新组帧,然后转换为光信号后传输给拓展单元;· 上行链路中,由拓展单元进入接入单元的光信号转换为数字信号后进入数字处理单元U2;数字处理单元U2分离出基带信号和以太网信号,其中以太网信号输出,基带信号经数字处理后转换为上行中频信号;射频处理单元Ul将上行中频信号变频为上行射频信号,并采用无线传播的方式传回信源; 扩展单元连接网络时, 下行链路中,接入单元输入到扩展单元的光信号转换成下行数字信号后进入数字处理单元U4 ;数字处 According to claim 3. A multi-service access number of all-optical distributed system of claim 2, wherein: 2G or 3G or 4G wireless signal when the access units connected to the network, the downlink, the transmission source after entering the access unit, through the RF processing unit Ul downlink RF signals into downlink intermediate frequency signal; a digital processing unit U2 downlink intermediate frequency signal into a baseband signal processing, and re-framing the input signal to the Ethernet, and then converted into light after the signal to the expansion unit; uplink, the expansion unit into the access unit by the optical signal is converted to a digital signal into the digital processing unit U2; digital processing unit U2 separated baseband signal and the Ethernet signal, wherein the Ethernet output signal, the baseband signal converted by the digital signal processing to the uplink IF; RF processing unit Ul uplink IF signal converted to upstream RF signal, and transmitted by way of radio transmission back to the source; when expansion unit connected to the network, the downlink after the access units into a downlink optical signal is converted into a digital signal into the digital expansion unit is a processing unit U4; digit of 单元U4将下行数字信号与输入的下行宽带信号合路并重新组帧,转换为光信号后从各端口传送到拉远单元; 上行链路中,拉远单元输出到扩展单元的光信号转换成上行数字信号后进入数字处理单元U4 ;数字处理单元U4将各端口输入的上行数字信号分解为上行宽带信号和上行无线数字信号,其中上行宽带信号输出,上行无线数字信号进行合路后重新组帧,然后转换为光信号后传送到接入单元; 扩展单元与拉远单元之间传输时,在拉远单元传输方式如下, 下行链路中,由拓展单元传输的光信号转换为数字信号后进入数字处理单元U6,;数字处理单元U6分离出基带信号和以太网信号,其中以太网信号传输给以太网信号处理单元U8,基带信号经数字处理后转换为下行中频信号,射频处理单元U7将下行中频信号变频为下行射频信号,并通过天线单元U9辐射到空 The downlink unit U4 downlink wideband signal combiner and the input digital signal and re-framing the converted optical signal of each remote unit transmits to the slave port; uplink, the remote unit outputs the optical signal into an expansion unit after entering the upstream digital signal from the digital processing unit U4; post-digital processing unit U4 decomposed upstream digital signal of each input port as an uplink wideband signal and an uplink wireless digital signals, wherein the uplink wideband signal output, the uplink radio digital signal combiner re-framing and transmitting the converted optical signal to the access unit; when the extension transmission between the unit and the remote unit, the remote unit transmission follows the downlink, converts the optical signal transmission unit to expand into the digital signal the digital processing unit ,; digital processing unit U6 U6 separated baseband signal and the Ethernet signal, wherein the Ethernet signal to the Ethernet signal processing unit U8, the baseband signal converted by the digital intermediate frequency signal processing to a downlink, the downlink RF processing unit U7 IF signal converted to a radio frequency downlink signal, and radiated to space through the antenna unit U9 中; 上行链路中,无线信号由天线单元U9接收进入拉远单元后,通过射频处理单元U7将上行射频信号转换为上行中频信号;数字处理单元U6将上行中频信号变换为基带信号,并与以太网信号处理单元U8传输的以太网信号重新组帧,然后转换为光信号后传输给拓展单J Li o ; And after the uplink radio signal is received by antenna unit U9 into the remote unit, through the radio frequency processing unit the uplink U7 RF signals into an uplink IF signal; a digital processing unit U6 uplink IF signal into a baseband signal, and with Ethernet signal transmission processing unit U8, re-framing the Ethernet signal, and then transmitted to a single J Li o expand converted into an optical signal
4.按权利要求3所述的一种多业务接入的数字全光分布式系统,其特征在于:以太网信号处理单元U8提供直流电。 Claim 4. A multi-service access number of the all-optical distributed system 3, characterized in that: the Ethernet signal processing unit U8 supply DC.
5.按权利要求3所述的一种多业务接入的数字全光分布式系统,其特征在于:接入单元和拓展单元、拓展单元和拉远单元之间基于CPRI标准协议的帧格式进行组帧传输。 Claim 5. A multi-service access number of the all-optical distributed system 3, characterized in that: based on the CPRI standard frame format protocol between access units and expansion units, expansion units, and remote unit group transmission frame.
6.按权利要求1或2或3或4或5所述的一种多业务接入的数字全光分布式系统,其特征在于:通过拓展单元和拉远单元建立星型、链型、环形或混合的组网。 Claim 6. A multi-service access number of all-optical distributed system 1 or 2 or 3 or 4 or 5, characterized in that: through the expansion unit and a remote unit establishes a star, chain, ring or mixed network.
7.按权利要求1或2或3或4或5所述的一种多业务接入的数字全光分布式系统,其特征在于:接入单元、拓展单元和拉远单元采用五类线连接网络。 According to claim 7. A multi-service access number of all-optical distributed system 1 or 2 or 3 or 4 or 5, characterized in that: the access means, expansion means and remote unit using five lines is connected The internet.
8.按权利要求1或2或3或4或5所述的一种多业务接入的数字全光分布式系统,其特征在于:设置两个或以上接入单元,接入单元不共址。 Claim 8. A multi-service access number 1 or 2 or 3 or 4 or 5 of the all-optical distributed system, comprising: providing two or more access units, an access unit is not co-located .
9.按权利要求1或2或3或4或5所述的一种多业务接入的数字全光分布式系统,其特征在于:设置切换单元和两个接入单元,接入单元和切换单元之间采用射频电缆和光纤连接,切换单元和拓展单元之间采用光纤连接, 所述切换单元包括射频处理单元U11、光路单元U12、供电单元U13和监控控制单元U14,射频处理单元Ull平均分配进入切换单元的射频信号,均分后的射频信号分别与两个接入单元连接,监控控制单元U14连接光路单元U12,光路单元U12连接接入单元之一和扩展单元,根据监控控制单元U14信号切换连接另一接入单元;供电单元U13向射频处理单元Ul1、光路单元U12和监控控`制单元U14分别供电。 As claimed in claim 9. A multi-service access number of all-optical distributed system 1 or 2 or 3 or 4 or 5, wherein: setting the switching unit and two access units, access units and switching between units using radio frequency cables and fiber optic connections, fiber connections between the switching unit and the expansion unit, the switching unit comprises a radio frequency processing unit U11, U12 optical path means, the power supply unit and the monitoring control unit U13 U14, Ull evenly RF processing unit the switching unit into the RF signal, the RF signal sharing the two access units are connected, the monitoring control unit connected to the optical path unit U14 U12, U12 one optical path means connected to the access unit and the extension unit, the monitoring control unit according to a signal U14 switching means connected to the other access; U13 power supply unit to the radio frequency processing unit Ul1, the optical path control and monitoring unit U12 U14 'respectively supply system unit.
10.按权利要求1或2或3或4或5所述的一种多业务接入的数字全光分布式系统,其特征在于:天线单元U9采用微型掩蔽的单极化多频天线。 According to claim 10. A multi-service access number 1 or 2 or 3 or 4 or 5 of the all-optical distributed system, comprising: an antenna unit of the micro-masked U9 monopole multi-band antenna.
CN2013103658259A 2013-08-20 2013-08-20 Digital all-optical distributed system allowing multiple-service access CN103391485A (en)

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CN107167174A (en) * 2017-04-05 2017-09-15 中北大学 Distributed miniature data acquisition system
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CN104936197A (en) * 2014-03-20 2015-09-23 常州隽通电子技术有限公司 Mobile communication micropower digital multipoint indoor coverage system
CN104168582B (en) * 2014-08-08 2017-12-26 京信通信系统(中国)有限公司 A micro cell base station system, data processing method and related equipment
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CN104168582A (en) * 2014-08-08 2014-11-26 京信通信系统(中国)有限公司 Micro cell base station system, related equipment and data processing method
CN105743582A (en) * 2016-01-28 2016-07-06 武汉虹信通信技术有限责任公司 Multi-service access digital-analog hybrid networking all-optical distributed system
CN105813093A (en) * 2016-03-30 2016-07-27 武汉虹信通信技术有限责任公司 Separated antenna coverage system for multi-service signal deep coverage and networking
CN106130647A (en) * 2016-08-05 2016-11-16 三维通信股份有限公司 Multipoint-to-multipoint intelligent indoor signal coverage system
CN106230509A (en) * 2016-08-10 2016-12-14 武汉虹信通信技术有限责任公司 Method and system for transmitting wireless signals by utilizing 10Gbps Ethernet
CN106375015A (en) * 2016-08-31 2017-02-01 武汉虹信通信技术有限责任公司 Digital all-optical distributed FM broadcasting system
CN106375015B (en) * 2016-08-31 2019-03-15 武汉虹信通信技术有限责任公司 A kind of full light distribution formula frequency modulation broadcast system of number
WO2018098696A1 (en) * 2016-11-30 2018-06-07 华为技术有限公司 Integrated access system
CN107167174B (en) * 2017-04-05 2018-03-20 中北大学 Micro Distributed Data Acquisition System
CN107167174A (en) * 2017-04-05 2017-09-15 中北大学 Distributed miniature data acquisition system
CN107395283A (en) * 2017-08-11 2017-11-24 武汉虹信通信技术有限责任公司 Digital optical fiber multi-service distributed base station system

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