WO2012037821A1 - 一种传输以太网信号和移动通信信号的接入系统和方法 - Google Patents

一种传输以太网信号和移动通信信号的接入系统和方法 Download PDF

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Publication number
WO2012037821A1
WO2012037821A1 PCT/CN2011/075791 CN2011075791W WO2012037821A1 WO 2012037821 A1 WO2012037821 A1 WO 2012037821A1 CN 2011075791 W CN2011075791 W CN 2011075791W WO 2012037821 A1 WO2012037821 A1 WO 2012037821A1
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Prior art keywords
unit
signal
mobile communication
downlink
differential
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PCT/CN2011/075791
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English (en)
French (fr)
Inventor
张进才
李汉兵
吴子钢
周祖望
孟祥志
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武汉虹信通信技术有限责任公司
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Priority to US13/502,550 priority Critical patent/US9019892B2/en
Publication of WO2012037821A1 publication Critical patent/WO2012037821A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
    • H04B10/25754—Star network topology

Definitions

  • the present invention relates to a transmission Ethernet signal and a mobile communication signal access system, and more particularly to an access system and method for performing the above two types of signal transmission using a twisted pair. Background technique
  • Twisted pair is a common communication cable that uses a pair of mutually insulated metal wires to twist each other to resist some external electromagnetic interference. By twisting two insulated copper wires together at a certain density, the degree of signal interference can be reduced, and the electric wave radiated by each wire in the transmission is cancelled by the electric wave emitted from the other wire.
  • the name "twisted pair" is also derived from this.
  • the twisted pair cable is generally formed by two 22 ⁇ 26 insulated copper wires intertwined. In actual use, the twisted pair cable is bundled in an insulated cable sleeve by a plurality of pairs of twisted pairs.
  • Category 5 cable is a type of twisted pair cable, this type of cable Increased winding density, jacket with a high quality insulation material, 100MHz transmission, for voice transmission and data transmission with a maximum transmission rate of 10Mbps, mainly used in 100BASE-T and 10BASE-T networks. This is the most commonly used Ethernet cables.
  • the Category 5 cable is also a type of twisted pair cable.
  • the Category 5 cable has low attenuation, low crosstalk, and higher attenuation to crosstalk ratio (ACR) and signal loss ratio (Structural Return Loss). Delay error, performance is greatly improved.
  • the Super Category 5 cable is mainly used for Gigabit Ethernet (1000Mbps).
  • FTTX+LAN that is, fiber access + LAN to provide broadband access services for users.
  • an optical network unit ONU
  • the Category 5 line to the ONU provides users with broadband access services.
  • the 100 Mbps Ethernet cable usually uses Category 5 cable.
  • the technical problem to be solved by the present invention is to provide a low-cost user-side depth coverage scheme.
  • mobile communication signals such as GSM, CDMA, TD-SCDMA, WCDMA and other different types of mobile communication signals and the household Ethernet signals are shared with the five types of lines and transmitted to the user's home.
  • Home/indoor coverage this method does not require re-laying cables, and does not require difficult home coordination. Users only need to replace one terminal to achieve broadband access and mobile communication access.
  • the present invention provides a transmission Ethernet signal and a mobile communication signal access system, including a near-end host unit and N remote user units, and the near-end host unit and the optical network unit are connected to receive and upload an Ethernet signal.
  • the near-end host unit is further connected to the base station to receive and upload a mobile communication signal, and the near-end host unit and the remote user unit transmit an Ethernet signal and a mobile communication signal through a Category 5 or Super Category 5 line connection;
  • the near-end host unit includes a host frequency conversion unit, a host center control unit, a downlink signal distribution unit, an uplink signal distribution unit, N uplink differential-to-single-end units, N downlink single-ended to differential units, and N Network transformer unit;
  • the host frequency conversion unit down-converts the downlink mobile communication signal to the downlink signal distribution unit, and the host frequency conversion unit sets its internal clock.
  • the reference signal is also output to the downlink signal distribution unit, and the downlink signal distribution unit performs the combination of the converted downlink mobile communication signal and the clock reference signal through the combiner, and further performs signal distribution.
  • the downlink is allocated as N signals, and the N downlink single-ended to differential units respectively convert the N signals into single-ended signals to differential signals to match the impedances of the Category 5 or Super Category 5 lines.
  • the central control unit After being converted into a differential signal, the central control unit sends a pair of control signals to each of the differential signals, and after the downlink conversion is completed, the differential signals are loaded to the pair of wires 4 and 5, and the pair of twisted pairs are transmitted.
  • the uplink mobile communication signal from the user terminal passes through the pair of 7 and 8 twisted pairs
  • the differential signal is sent to the near-end host unit.
  • the N uplink differential-to-single-end units convert the uplink mobile communication signals into single-ended signals and provide them to the uplink signal distribution unit.
  • the link signal distribution unit combines the N signals into the intermediate frequency uplink mobile communication signal, and finally sends the uplink mobile communication signal to the radio frequency signal from the intermediate frequency conversion unit to the base station for transmission to the base station;
  • the downlink Ethernet signal from the optical network unit is sent to the host unit, and then loaded to the 1st and 2nd twisted pairs of the Category 5 or Super Category 5 through the corresponding network transformer unit, and the uplink from the client.
  • the Ethernet signal is transmitted to the optical network unit through the corresponding network transformer unit from the pair of wires 5 and 6 of the Category 5 or Category 5 line;
  • the remote subscriber unit comprises a terminal frequency conversion unit, a client terminal central control unit, N single-ended to differential units, N differential to single-ended units, an Ethernet data processing unit, and N network transformer units;
  • the Ethernet signal and the mobile communication signal transmitted from the near-end host unit enter the remote user terminal through the EM1 port, and the two pairs of twisted pairs 1 and 2, 3 and 6 are respectively connected to the corresponding network transformer, and each network transformer Connected to an Ethernet data processing unit, the Ethernet data processing unit provides broadband access services.
  • the central control unit extracts control signals from the pair of twisted pairs 4 and 5, and analyzes the control information transmitted from the near-end host unit, thereby controlling the terminal frequency conversion unit and the Ethernet data processing unit, and simultaneously timing their working states.
  • the differential to single-ended conversion is performed by the differential-to-single-ended unit, and the downlink mobile communication signals and clock reference signals from the pair of 4 and 5 twisted pairs are separated by the high-low-pass filter, and sent Downlink transmission to the remote frequency conversion unit;
  • the uplink mobile communication signal is changed to the intermediate frequency signal through the remote frequency conversion unit, and then the impedance change of the single-ended to differential unit and the single-ended to differential conversion are applied to the pair of twisted pairs 7 and 8 to the near-end host unit.
  • the proximal host unit further includes a host-side power supply unit, and the output thereof is +48V DC, and is fed to the two pairs of twisted pairs 1 and 2, 3, and 6 through the secondary coils of the respective network transformer units, wherein 1 and 2 pairs of twisted pairs are connected to the positive DC +48V, 3 and 6 are connected to the negative DC ground;
  • the remote subscriber unit includes a POE power supply unit, and the POE power supply unit extracts DC power from two pairs of twisted pairs 1 and 2, 3 and 6 and performs DC conversion from +48 V to +5 V, which is a remote user terminal. Each unit provides power.
  • the control signal is a control signal conforming to the RS485 protocol.
  • the present invention also provides a method for transmitting an Ethernet signal and a mobile communication signal, the method comprising:
  • the near-end host unit and the optical network unit are connected to receive and upload an Ethernet signal, and the near-end host unit is further connected to the base station to receive and upload a mobile communication signal, and the near-end host unit and the remote user unit pass the Category 5 or Super Category 5 line. Connecting transmission Ethernet signals and mobile communication signals;
  • the near-end host unit includes a host frequency conversion unit, a host center control unit, a downlink signal distribution unit, an uplink signal distribution unit, N uplink differential-to-single-end units, N downlink single-ended to differential units, and N Network transformer unit;
  • the host frequency conversion unit down-converts the downlink mobile communication signal to the downlink signal distribution unit, and the host frequency conversion unit sets its internal clock.
  • the reference signal is also output to the downlink signal distribution unit, and the downlink signal distribution unit performs the combination of the converted downlink mobile communication signal and the clock reference signal through the combiner, and further performs signal distribution.
  • the downlink is allocated as N signals, and the N downlink single-ended to differential units respectively convert the N signals into single-ended signals to differential signals to match the impedances of the Category 5 or Super Category 5 lines.
  • the central control unit After being converted into a differential signal, the central control unit sends a pair of control signals to each of the differential signals, and after the downlink conversion is completed, the differential signals are loaded to the pair 4 and 5 of the Category 5 twisted pair.
  • the uplink mobile communication signal from the user terminal is sent to the near-end host unit through the pair of twisted pairs 7 and 8, and in the near-end host unit, the N uplink differential-to-single-end units will go up.
  • the link mobile communication signals are respectively converted into single-ended signals to the uplink signal distribution unit, and the uplink signal distribution unit combines the N signals into the intermediate frequency uplink mobile communication signals, and finally to the host frequency conversion unit to perform the uplink mobile communication.
  • the signal is changed from the intermediate frequency back to the radio frequency signal and transmitted to the base station;
  • the downlink Ethernet signal from the optical network unit is sent to the host unit, and then loaded to the 1st and 2nd twisted pairs of the Category 5 or Super Category 5 through the corresponding network transformer unit, and the uplink from the client.
  • the Ethernet signal is transmitted to the optical network unit from the pair of twisted pairs 3 and 6 of the Category 5 or Super Category 5 line through the corresponding network transformer unit;
  • the Ethernet signal and the mobile communication signal transmitted from the near-end host unit enter the remote user terminal through the EM1 port, and the two pairs of twisted pairs 1 and 2, 3 and 6 are respectively connected with the corresponding network transformer, and each network transformer Connected to an Ethernet data processing unit, the Ethernet data processing unit provides broadband access services.
  • the central control unit extracts control signals from the pair of twisted pairs 4 and 5, and analyzes the control information transmitted from the near-end host unit, thereby controlling the terminal frequency conversion unit and the Ethernet data processing unit, and simultaneously timing their working states.
  • the differential to single-ended conversion is performed by the differential-to-single-ended unit, and the downlink mobile communication signals and clock reference signals from the pair of 4 and 5 twisted pairs are separated by the high-low-pass filter, and sent Downlink transmission to the remote frequency conversion unit;
  • the uplink mobile communication signal is changed to the intermediate frequency signal through the remote frequency conversion unit, and then the impedance change of the single-ended to differential unit and the single-ended to differential conversion, and the pair of twisted pairs loaded to 7 and 8 are transmitted to the near-end host unit.
  • the invention does not need to redeploy cables, directly uses the resident network resources and user resources to carry out indoor signal coverage problems, and considers the problem that it is difficult to take power in the user's home, and solves the mobile communication signal of the telecom operator by using the remote supply method.
  • Indoor depth coverage problem Solving the problem that telecom operators' mobile communication signals are difficult to enter and difficult to coordinate.
  • FIG. 2 is a system block diagram of the near-end host unit of the present invention.
  • FIG. 3 is a system block diagram of the remote subscriber unit of the present invention.
  • FIG. 5 is a system block diagram of the host frequency conversion unit of the present invention. detailed description
  • FIG. 1 depicts a system block diagram of the integrated access system of the present invention.
  • the Ethernet signal from the ONU is connected to the near-end host unit through a Category 5 line.
  • One or two mobile communication signals from the base station such as GSM, CDMA, WCDMA, TD-SCDMA, WLAN, etc. enter the host through the RF cable.
  • the unit completes the combination of the Ethernet signal and the mobile communication signal inside the host unit.
  • the signal is sent to the user's home through a Category 5 line, and the user terminal in the user's home provides broadband Internet access, IPTV, VoIP, WLAN, wireless access and other services.
  • a host unit can connect 16 user terminal units, and through expansion, more than 24 user terminal units can be connected.
  • FIG. 2 depicts a system block diagram of the near-end host unit.
  • the near-end host unit comprises a host frequency conversion unit U5, a power supply unit U6, a central control unit U1, a downlink signal distribution unit U2, an uplink signal distribution unit U3, a single-ended to differential unit U7, U8, and a plurality of network transformer units. T1 ⁇ T16.
  • the downlink signal is down-converted by the host frequency conversion unit U5, the frequency of the mobile communication signal is changed to F1, and sent to U2, and the host frequency conversion unit U5 also has its internal clock reference frequency Fr.
  • Output send to U2, complete the combination of F1 and Fr through the combiner in U2, then divide the signal into equal parts, divide the downlink into 16 signals, and then pass the 16 signals through the single End-to-differential unit conversion, where the first path is converted by the U7 unit (others need to be converted from single-ended to differential, not described in detail here) to match the impedance of the Category 5 line, 50 ohms
  • the single-ended signal impedance is converted to a differential impedance of 100 ohms while increasing the line's immunity to common mode interference.
  • the central control unit U1 After being converted into a differential signal, the central control unit U1 sends a pair of RS485 control signals 485A, 485B to the pair of differential signals, and sends the RS485 monitoring signal to the user terminal through the pair of twisted pairs for near-end implementation. The collection of control of the user terminal and related information.
  • the differential signal is transmitted through the pair of twisted pairs 4 and 5.
  • the uplink mobile communication signal F2 from the user terminal is sent to the near-end host unit through the pair of twisted pairs 7 and 8, in the near-end host unit, first through the U8 for differential to single-ended conversion, and then through U3 enters the power distribution unit of the uplink, and finally enters the frequency conversion through F2.
  • the unit U5 changes the signal from the intermediate frequency F2 back to the radio frequency signal through U5 and sends it back to the base station, thereby completing the uplink communication.
  • Ethernet signals E1 ⁇ E16 (1 and 2, 3 and 6 pairs of twisted pairs) from the ONU are sent to the host unit and applied to the 5 and 5 lines of the Category 5 through a network transformer T1 ⁇ T16 respectively. And two pairs of twisted pairs, and then with two pairs of twisted pairs of 4, 5, 7 and 8 carrying mobile communication signals, transmitted to the far end through a Category 5 line.
  • the power supply unit U6 outputs +48V DC, which is fed to the two pairs of twisted pairs 1 and 2, 3 and 6 through the secondary coils of the network transformer unit ⁇ 1 ⁇ 16, and the pair of twisted pairs of 1 and 2 are connected to the positive DC +48V 3 and 6 are connected to the negative DC ground.
  • the near-end host can communicate with the mobile gateway center via SMS; or the near-end host device can be used as a remote end of the ONU device to communicate over Ethernet.
  • FIG. 4 depicts the structure of the terminal frequency conversion unit.
  • the terminal frequency conversion unit U16 includes a downlink and an uplink, and the downlink intermediate frequency signal F1 is amplified by the amplifier 1 and then subjected to the digitally controlled attenuator ATT25, and then amplified by the amplifier 2, and the level is adjusted and passed through the mixer. 26, the intermediate frequency F1 is reduced to a radio frequency signal, filtered by the acoustic meter filter 27, the stray wave is removed, and then amplified by the amplifier 3 and the amplifier 4, the level of the downlink is adjusted to an appropriate level, and the uplink and the downlink are passed.
  • Switching unit U12 (U12 unit, for the frequency division duplex wireless system, which is a duplexer; for the time division duplex wireless system, it is an RF switch, controlled by the central control unit U13, for uplink and downlink communication Switch off), and finally transmit through the antenna.
  • the downlink signal is coupled to the detector DET24 through a coupler to complete the downlink input power detection.
  • the downlink can be completed.
  • Automatic level gain control For time division duplex system, the DET24 detection signal is sent to the central control unit, the central control unit completes the extraction of the time division synchronization signal, and the time division synchronization control signal output controls the RF switch U12 to go up and down. Row Switch.
  • the uplink signal passes through the switch or duplexer U12, enters the amplifier 9 and the amplifier 8, feeds the signal amplifier to the appropriate level, and enters the digitally controlled attenuator 21, through which the gain of the uplink can be controlled. .
  • the uplink IF signal F2 is transmitted through the U17 single-ended to differential conversion through the pair of 7 and 8 twisted pairs.
  • the detection of the uplink output level is completed by DET28.
  • the PLL 29 is used to generate a local oscillator signal, and a local oscillator signal is provided for the mixers 20 and 26.
  • the reference signal of the PLL is a clock reference signal Fr transmitted from the host unit, and is amplified by the amplifier 5 in the terminal inverter unit. PLL29, which provides a phase-locked reference.
  • the U8 is entered to complete the differential to single-ended conversion of the uplink. Then, the uplink signal distribution unit U3 is entered, and the uplink signals of the respective far ends are electrically combined, and then restored to the radio frequency signals by the host frequency conversion unit U6.
  • the invention patent can maximize the utilization of the resident network resources, and does not need to re-lay the five types of lines, only need to add a near-end host unit to the ONU device of the optical network unit, and replace the user terminal at the same time, and does not need to be in the user's home.
  • Power-on the terminal is placed in a flexible position, and is not limited by the power-on position. It can easily provide Ethernet signals and mobile communication signals.
  • a near-end host unit can tow 16 remote ports, and each user can reach a maximum distance of 100m.
  • the application of the technology of the invention can maximize the cost of network construction for the operator, and the investment is less, and the opening is opened. Simple and fast.
  • the solution of the present invention is flexible in application, and can be flexibly configured according to the requirements of the user, and can provide only an Ethernet signal or only a mobile communication signal.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
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Abstract

一种传输以太网信号和移动通信信号的接入系统及其方法，包括一个近端主机单元及多个远端用户单元。通过所述近端主机单元，可以完成以太网信号和移动通信信号（如GSM、CDMA、TDSCDMA、WCDMA等一种或两种）的合路。近端主机单元和远端用户单元之间通过四对双绞线，如五类线、超五类线等进行连接，将合路的以太网信号和移动通信信号送到用户终端，为用户提供宽带接入服务和无线接入服务。本发明可以最大限度的利用驻地网资源，不用重新铺设五类线，投资少，开通服务快捷，只需要在ONU设备边增加一个主机单元，同时将用户终端进行更换即可；同时不需要在用户家中取电，终端放置位置灵活，不受取电位置限制。

Description

一种传输以太网信号和移动通信信号的接入系统和方法
技术领域
本发明涉及一种传输以太网信号和移动通信信号接入系统， 特别是指 利用双绞线进行上述两种信号传输的一种接入系统和方法。 背景技术
中国的 3G牌照发放后， 国内电信巿场存在三家运营商， 各运营商之间 为争夺用户进行着激烈的竟争。 为了提高用户的忠诚度， 留住老用户， 吸 收新用户， 一个关键的因素就是要提供优质的网络覆盖。
数据统计表明， 70%以上的数据业务是在室内进行的。 随着 3G用户的 大幅增长， 数据业务收入所占比重越来越高， 为了更好的吸收室内业务量, 必须提高室内信号覆盖质量， 对有数据业务需求的室内区域要进行深度室 内覆盖， 对贵宾 （VIP )客户所处室内环境进行深度覆盖。
现行的室内数据业务主要通过铺设双绞线缆来进行覆盖。 双绞线是常 见的通信线缆， 其釆用了一对互相绝缘的金属导线互相绞合的方式来抵抗 一部分外界电磁波干扰。 把两根绝缘的铜导线按一定密度互相绞在一起， 可以降低信号干扰的程度， 每一根导线在传输中辐射的电波会被另一根线 上发出的电波抵消。 "双绞线"的名称也是由此而来。双绞线一般由两根 22 ~ 26号绝缘铜导线相互缠绕而成， 实际使用时， 双绞线是由多对双绞线一起 包在一个绝缘电缆套管里的。 现有的五类线和超五类线的双绞线有四对的。 这些我们称之为双绞线电缆。 在双绞线电缆内， 不同线对具有不同的扭绞 长度， 一般地说， 扭绞长度在 38.1cm至 14cm内， 按逆时针方向扭绞。 相 邻线对的扭绞长度在 12.7cm以上， 一般扭线越密其抗干扰能力就越强， 与 其他传输介质相比， 双绞线在传输距离， 信道宽度和数据传输速度等方面 均受到一定限制， 但价格较为低廉。 五类线是双绞线缆的一种， 该类电缆 增加了绕线密度， 外套一种高质量的绝缘材料， 传输率为 100MHz, 用于语 音传输和最高传输速率为 10Mbps 的数据传输， 主要用于 100BASE-T 和 10BASE-T网络。这是最常用的以太网电缆。超五类线也是双绞线缆的一种， 超五类线具有衰减小， 串扰少， 并且具有更高的衰减与串扰的比值 (ACR) 和信噪比 (Structural Return Loss)、 更小的时延误差， 性能得到很大提高。 超 五类线主要用于千兆位以太网 （ 1000Mbps )。
随着公民环保意识、 健康意识的不断提高， 移动通信信号进小区， 架 设室外天线， 物业协调非常困难。 由于 3G制式频率高， 受墙体阻挡严重， 穿透损耗大， 依靠宏站信号或楼道信号泄漏难以达到很好的室内覆盖效果。 对每家每户的布线很不方便， 室内家庭用户的覆盖往往都存在较多的协调 问题， 家庭室内覆盖主要依靠宏站信号或楼道信号渗透。
目前三大运营商大都釆用（FTTX+LAN )即光纤接入 +局域网的方式为 用户提供宽带接入服务， 在靠近用户楼道或弱电井侧， 安装有光网络单元 ( ONU ), 再通过连接到 ONU的五类线为用户提供宽带接入服务。 百兆以 太网线通常使用五类线， 在传输以太网数据时， 其仅仅使用了 1和 2, 3和 6两对双绞线， 4和 5、 7和 8这两对双绞线是处于空闲状态。 由于几乎所 有小区入户均铺有五类线， 可以充分利用空闲的两对双绞线传送移动通信 信号， 将以太网信号和移动通信信号复用进同一根五类线， 传到用户端。 在为家庭提供高速宽带的同时， 又可以提供移动通信信号。 在未来一段时 间， 100Mbps 以太网， 可以满足用户的需求， 因此， 利用空闲的两对双绞 线传输移动通信信号， 从而解决移动通信信号的家庭覆盖问题， 是快捷而 且节省成本的解决方案。不论是 2G移动通信信号，还是 3G移动通信信号， 均可以通过这种方式实现家庭覆盖。 为三大运营商提供了一种解决室内移 动通信信号覆盖的方案。 发明内容
本发明所要解决的技术问题是提供一种低成本的用户端深度覆盖方 案。 利用用户已有的入户五类线， 将移动通信信号比如 GSM、 CDMA, TD-SCDMA、 WCDMA等不同制式的移动通信信号和入户的以太网信号共 用五类线， 传到用户家庭， 实现家庭 /室内覆盖， 这种方式不需要重新铺设 线缆， 不需要困难的入户协调工作， 用户只需要更换一个终端就可以实现 宽带接入和移动通信接入。
为此， 本发明提出一种传输以太网信号和移动通信信号接入系统， 包 括近端主机单元和 N个远端用户单元， 该近端主机单元与光网络单元连接 接收和上传以太网信号， 该近端主机单元还与基站连接接收和上传移动通 信信号， 该近端主机单元与该远端用户单元通过五类线或超五类线连接传 输以太网信号和移动通信信号；
其中， 该近端主机单元包括主机变频单元、 主机中心控制单元、 下行 链路信号分配单元、 上行链路信号分配单元、 N个上行差分转单端单元、 N 个下行单端转差分单元以及 N个网络变压器单元；
来自基站的下行链路移动通信信号进入近端主机单元后， 主机变频单 元将该下行链路移动通信信号进行下变频转换后送到下行链路信号分配单 元， 同时主机变频单元将其内部的时钟参考信号也输出到下行链路信号分 配单元， 所述下行链路信号分配单元通过合路器完成变频后的下行链路移 动通信信号与所述时钟参考信号的合路并进一步进行信号的分配， 将下行 链路分配为 N路信号，所述 N个下行单端转差分单元分别将 N路信号进行 单端信号到差分信号的转换， 以便和五类线或超五类线的阻抗进行匹配， 转换为差分信号后， 中心控制单元将一对控制信号分别送入到这每差分信 号上、 下行链路变换完成后将差分信号加载到五类线的 4和 5这对双绞线 进行传输， 来自用户终端的上行链路移动通信信号通过 7和 8这对双绞线 以差分信号形式送到近端主机单元， 在近端主机单元中， N 个上行差分转 单端单元将上行链路移动通信信号分别转换为单端信号形式提供给上行链 路信号分配单元， 上行链路信号分配单元将 N路信号合并为中频的上行移 动通信信号， 最终到主机变频单元将该上行移动通信信号由中频变回到射 频信号， 向基站传输；
同时， 来自光网络单元的下行以太网信号送入到主机单元后， 分别通 过对应的网络变压器单元加载到五类线或超五类线的 1和 2这段双绞线上， 来自客户端上行以太网信号通过对应的网络变压器单元从五类线或超五类 线的 3和 6这对双绞线上传输到光网络单元；
所述远端用户单元包括终端变频单元， 用户端中心控制单元， N个单 端转差分单元， N个差分转单端单元， 以太网数据处理单元， N个网络变 压器单元；
从近端主机单元传过来的以太网信号和移动通信信号， 经 EM1 口进入 到远端用户终端， 1和 2, 3和 6这两对双绞线分别于对应的网络变压器连 接， 各网络变压器连接到以太网数据处理单元， 由以太网数据处理单元提 供宽带接入服务。 中心控制单元从 4和 5这对双绞线上提取出控制信号， 将近端主机单元传输过来的控制信息进行解析， 从而控制终端变频单元和 以太网数据处理单元， 同时将他们的工作状态定时上传到主机单元的中心 控制单元， 通过差分转单端单元完成差分到单端的变换， 并通过高低通滤 波器分离来自 4和 5这对双绞线上的下行移动通信信号和时钟参考信号， 送到远端变频单元中进行下行链路的传输；
同时， 上行移动通信信号经过远端变频单元变为中频信号， 再通过单 端转差分单元的阻抗变化以及单端到差分转换， 加载到 7和 8这对双绞线 向近端主机单元传输。
其中， 为了实现远端供电， 本发明的技术方案还进一步进行了如下配 置， 所述近端主机单元还包括主机端供电单元， 其输出 +48V直流， 分别通 过各网络变压器单元的次级线圈馈入到 1和 2, 3和 6这两对双绞线上， 其 中 1和 2这对双绞线接正极直流 +48V, 3和 6接负极直流地；
所述远端用户单元包括 POE供电单元， 所述 POE供电单元从 1和 2, 3和 6这两对双绞线上提取直流供电， 经过 +48V到 +5V的直流转换， 为远 端用户终端的各个单元提供电源。
其中， 所述控制信号为符合 RS485协议的控制信号。
与系统对应， 本发明还提出一种传输以太网信号和移动通信信号接入 方法， 所述方法包括：
提供一近端主机单元与远端用户单元；
近端主机单元与光网络单元连接接收和上传以太网信号， 近端主机单 元还与基站连接接收和上传移动通信信号， 近端主机单元与该远端用户单 元通过五类线或超五类线连接传输以太网信号和移动通信信号；
其中， 该近端主机单元包括主机变频单元、 主机中心控制单元、 下行 链路信号分配单元、 上行链路信号分配单元、 N个上行差分转单端单元、 N 个下行单端转差分单元以及 N个网络变压器单元；
来自基站的下行链路移动通信信号进入近端主机单元后， 主机变频单 元将该下行链路移动通信信号进行下变频转换后送到下行链路信号分配单 元， 同时主机变频单元将其内部的时钟参考信号也输出到下行链路信号分 配单元， 所述下行链路信号分配单元通过合路器完成变频后的下行链路移 动通信信号与所述时钟参考信号的合路并进一步进行信号的分配， 将下行 链路分配为 N路信号，所述 N个下行单端转差分单元分别将 N路信号进行 单端信号到差分信号的转换， 以便和五类线或超五类线的阻抗进行匹配， 转换为差分信号后， 中心控制单元将一对控制信号分别送入到这每差分信 号上， 下行链路变换完成后将差分信号加载到五类线的 4和 5这对双绞线 进行传输， 来自用户终端的上行链路移动通信信号通过 7和 8这对双绞线 以差分信号形式送到近端主机单元， 在近端主机单元中， N 个上行差分转 单端单元将上行链路移动通信信号分别转换为单端信号形式提供给上行链 路信号分配单元， 上行链路信号分配单元将 N路信号合并为中频的上行移 动通信信号， 最终到主机变频单元将该上行移动通信信号由中频变回到射 频信号， 向基站传输；
同时， 来自光网络单元的下行以太网信号送入到主机单元后， 分别通 过对应的网络变压器单元加载到五类线或超五类线的 1和 2这段双绞线上， 来自客户端上行以太网信号通过对应的网络变压器单元从五类线或超五类 线的 3和 6这对双绞线传输到光网络单元；
所述远端用户单元包括终端变频单元， 用户端中心控制单元， N个单 端转差分单元， N个差分转单端单元， 以太网数据处理单元， N个网络变 压器单元；
从近端主机单元传过来的以太网信号和移动通信信号， 经 EM1 口进入 到远端用户终端， 1和 2, 3和 6这两对双绞线分别与对应的网络变压器连 接， 各网络变压器连接到以太网数据处理单元， 由以太网数据处理单元提 供宽带接入服务。 中心控制单元从 4和 5这对双绞线上提取出控制信号， 将近端主机单元传输过来的控制信息进行解析， 从而控制终端变频单元和 以太网数据处理单元， 同时将他们的工作状态定时上传到主机单元的中心 控制单元， 通过差分转单端单元完成差分到单端的变换， 并通过高低通滤 波器分离来自 4和 5这对双绞线上的下行移动通信信号和时钟参考信号， 送到远端变频单元中进行下行链路的传输；
同时， 上行移动通信信号经过远端变频单元变为中频信号， 再通过单 端转差分单元的阻抗变化以及单端到差分转换， 加载到 7和 8这对双绞线 向近端主机单元传输。 本发明不用重新部署线缆， 直接利用驻地网资源、 用户资源进行室内 信号覆盖问题， 同时考虑到在用户家中不易取电的问题， 釆用远供的方式， 解决了电信运营商移动通信信号的室内深度覆盖问题； 解决电信运营商移 动通信信号入户难、 物业协调难的问题。 附图说明
图 1是本发明所述接入系统的系统框图；
图 2是本发明所述近端主机单元的系统框图；
图 3是本发明所述远端用户单元的系统框图；
图 4是本发明所述终端变频单元的系统框图；
图 5是本发明所述主机变频单元的系统框图。 具体实施方式
以下结合附图详细说明本发明的具体实施方式。
图 1描述了本发明的综合接入系统的系统框图。来自 ONU的以太网信 号通过一根五类线接入到近端主机单元， 来自基站的 GSM、 CDMA , WCDMA、 TD-SCDMA、 WLAN等制式一种或两种移动通信信号通过射频 电缆进入到主机单元， 在主机单元内部完成以太网信号和移动通信信号的 合路。 合路之后通过一根五类线将信号送到用户家中， 通过用户家中的用 户终端为用户提供宽带上网、 IPTV、 VoIP, WLAN, 无线接入等服务。 一 个主机单元可以连接 16个用户终端单元， 通过扩展， 可以连接超过 24个 用户终端单元。
从基站耦合进来的信号送到图 2(主机单元原理框图）近端变频单元中， 进行移频， 将移动通信信号搬迁到较低的频率上， 以便降低传输损耗， 下 行信号变为 F1 ,上行信号变为 F2,为了保证阻抗的匹配性，减少共模干扰, 特将上下行的移频信号 F1和 F2进行单端到差分转换，下行信号通过 4和 5 这对双绞线传输， 上行信号通过 7和 8这对双绞线传输（为了保证近远端 的同步性， 将近端的参考时钟信号 Fr也通过 4和 5这对双绞线进行传输， 并在远端将其提取出来， 为远端锁相环做参考）， 最后再和 1、 2, 3、 6 两 对双绞线一起通过一根五类线完成以太网信号和移动通信信号的传送， 到 达用户家庭后， 通过用户终端将两种信号进行分开处理， 由以太网信号处 理电路提供宽带接入、 VoIP、 IPTV、 WLAN等服务， 由移动通信信号处理 电路提供手机接入服务。
图 2描述了近端主机单元的系统框图。 该近端主机单元包括主机变频 单元 U5 , 供电单元 U6, 中心控制单元 U1 , 下行链路信号分配单元 U2, 上 行链路信号分配单元 U3, 单端转差分单元 U7、 U8, 多个网络变压器单元 T1~T16。 移动通信信号进入主机后， 通过主机变频单元 U5 将下行链路信 号进行下变频转换， 将移动通信信号的频率变为 F1 , 送到 U2, 同时主机变 频单元 U5将其内部的时钟参考频率 Fr也输出出来， 送入到 U2, 在 U2内 部通过合路器完成 F1和 Fr的合路， 然后再进行信号的等分， 将下行链路 等分为 16路信号， 然后再将 16路信号通过单端到差分单元的转换， 其中 第一路通过 U7单元进行转换（其他每路均需要通过单端到差分的转换， 这 里不作详尽描述）， 以便和五类线的阻抗进行匹配， 将 50欧姆的单端信号 阻抗转换为 100欧姆的差分阻抗， 同时增加线路的抗共模干扰能力。 转换 为差分信号后， 中心控制单元 U1将 RS485的一对控制信号 485A、 485B分 别送入到这对差分信号上， 将 RS485监控信号通过这对双绞线送到用户终 端， 以便通过近端实施对用户终端的控制和相关信息的釆集工作。
下行链路变换完成后将差分信号通过 4和 5这对双绞线进行传输。 同 理， 来自用户终端的上行链路移动通信信号 F2通过 7和 8这对双绞线送到 近端主机单元， 在近端主机单元中， 首先通过 U8进行差分转单端变换， 然 后再通过 U3进入到上行链路的功率分配单元， 并最终通过 F2进入到变频 单元 U5 , 通过 U5将信号由中频 F2变回到射频信号， 送回基站， 从而完成 上行链路的通信。
来自 ONU的以太网信号 E1~E16 ( 1和 2, 3和 6两对双绞线）， 送入 到主机单元后， 分别通过一个网络变压器 T1~T16施加到五类线的 1和 2, 3和 6两对双绞线上， 然后再和承载移动通信信号的 4和 5, 7和 8两对双 绞线一起， 通过一根五类线传输到远端。
为了便于更快捷的部署， 不受制于用户家中的供电方便与否， 在方案 的实施中我们釆用了远供的方式为远端单元供电， 不用通过用户家中取电 就可以工作。 供电单元 U6输出 +48V直流， 通过网络变压器单元 Τ1~Τ16 的次级线圈馈入到 1和 2, 3和 6这两对双绞线上， 1和 2这对双绞线接正 极直流 +48V, 3和 6接负极直流地。
图 3 描述了远端用户单元的系统框图。 远端用户单元包括终端变频单 元 U16, ΡΟΕ供电单元 U14,中心控制单元 U13,单端转差分单元 U17~U18, 以太网数据处理单元 U15, 网络变压器单元 Tl， ~Τ16， 等部件。 从近端主 机单元传过来的以太网信号和移动通信信号， 经 EM1 口进入到远端用户终 端， 1和 2, 3和 6这两对双绞线上传输的以太网信号经过网络变压 Tl， 进 入到以太网数据处理单元 U15进行处理， 由 U15提供宽带接入服务， U15 单元实施方案釆用业内成熟芯片方案。 ΡΟΕ供电单元 U14将从 1和 2, 3 和 6这两对双绞线上提取直流供电， 经过 +48V到 +5V的直流转换， 为远端 用户终端的各个单元提供电源。 中心控制单元 U13从 4和 5这对双绞线上 提取出 RS485通信信号， 将主机单元传输过来的控制信息进行解析， 从而 控制终端变频单元 U16和以太网数据处理单元 U15, 同时将他们的工作状 态定时上传到主机单元的中心控制单元。 U17-U18完成差分到单端的变换， 4和 5这对双绞线上传输的有下行中频信号 F1和时钟参考频率信号 Fr, 通 过高低通滤波器 U10可以将 F1和 Fr分开， 送到终端变频单元 U16中。 来 自上行链路的信号经过远端变频单元 U16变为中频信号 F2,再通过 U18阻 抗变换， 单端到差分转换， 通过 7和 8这对双绞线传输到主机单元。
在上述实施例中为了做到在近端对远端进行监控， 釆用 RS485通信协 议，将 RS485通信信号通过 4和 5这对双绞线进行传输，到远端后将 RS485 信号提取出来， 控制远端单元的工作状态， 包括增益调节、 时隙动态调节、 信号关断等， 如果远端出现各种告警， 也可以通过 RS485通信方式将告警 和故障信息传送到近端。
同时， 釆用 POE方案进行供电， 不需要在用户家中取电， 有非常高的 安全性和可靠性。 V+通过 1和 2这对双绞线， V-通过 3和 6这对双绞线供 电。 同时 1和 2、 3和 6这两对双绞线传输 100Mbps以太网信号。
近端主机可以通过短信方式和移动网关中心进行通信； 也可以将近端 主机设备作为 ONU设备的一个远端， 通过以太网进行通信。
图 4描述了终端变频单元的结构。 终端变频单元 U16, 包含有下行链 路和上行链路， 下行链路的中频信号 F1经过放大器 1放大后， 进行数控衰 减器 ATT25, 再经过放大器 2放大， 将电平调整合适后通过混频器 26, 将 中频 F1还原为射频信号， 通过声表滤波器 27的滤波， 去除杂散波， 再经 过放大器 3和放大器 4的放大， 将下行链路的电平调整到合适水平， 通过 上下链路切换单元 U12 ( U12 单元， 对于频分双工的无线系统， 其为双工 器； 对于时分双工的无线系统， 其为射频开关， 受中心控制单元 U13的控 制， 进行上下行链路的通断切换）， 最后通过天线发射出去。
在放大器 1 的后面， 通过一个耦合器耦合下行链路的信号， 送到检波 器 DET24中， 完成下行链路输入功率检测， 对于频分双工系统， 与检波器 23 一起， 可以完成下行链路的自动电平增益控制； 对于时分双工系统， DET24 的检波信号， 送入的到中心控制单元， 由中心控制单元完成时分同 步信号的提取， 并将时分同步控制信号输出控制射频开关 U12进行上下行 切换。
上行链路的信号通过开关或双工器 U12, 进入到放大器 9和放大器 8, 将信号放大器到合适电平， 进入到数控衰减器 21中， 通过该数控衰减器可 以控制上行链路的增益大小。 进入混频器 20进行变频， 将频率变为 F2, 再 对 F2信号进行放大， 放大到一定电平， 以对抗线路传输的衰减。 上行中频 信号 F2经过 U17单端到差分的转换之后，通过 7和 8这对双绞线进行传输。 通过 DET28完成上行链路输出电平的检波。 PLL29用于产生本振信号， 为 混频器 20和 26提供本振信号， 该 PLL的参考信号是来自于主机单元传输 过来的时钟参考信号 Fr, 在终端变频单元中经过放大器 5 放大后进入到 PLL29, 为其提供锁相参考。
F2信号通过 7和 8这对双绞线进行传送到近端主机后， 进入 U8, 完成 上行链路的差分到单端转换。 再进入上行链路信号分配单元 U3, 将各个远 端的上行信号进行电合路， 之后通过主机变频单元 U6还原为射频信号。
图 5描述了主机变频单元的结构， F2信号经过放大器 10放大，将信号 放大器合适的电平， 经过混频器 14, 将中频 F2信号还原为射频信号， 通过 滤波器 19滤除杂散信号， 再通过放大器 11完成信号的输出电平调整， 再 通过 U10 ( U10 单元， 对于频分双工的无线系统， 其为双工器； 对于时分 双工的无线系统， 其为射频开关， 受中心控制单元 U1的控制， 进行上、 下 行链路的通断切换）进入到基站， 完成上行链路的通信过程。
本发明专利可以最大限度的利用驻地网资源， 不用重新铺设五类线， 只需要在光网络单元 ONU设备边增加一个近端主机单元， 同时将用户终端 进行更换即可， 并且不需要在用户家中取电， 终端放置位置灵活， 不受取 电位置限制， 可以非常方便地提供以太网信号和移动通信信号。 一台近端 主机单元可以拖带 16个远端， 每个用户的最远通信距离可以达到 100m。
本发明技术应用可以最大限度为运营商节省建网成本， 投资少， 开通 简单快捷。 另外本发明方案应用灵活， 根据用户的要求， 可以灵活配置， 可以只提供以太网信号， 也可以只提供移动通信信号。
以上所述仅为本发明的较佳实施例， 并不用于限制本发明， 凡在本发 明精神和原则之内所做的任何修改、 等同替换和改进等， 均包含于本发明 的保护范围之内。

Claims

权利要求书
1、 一种传输以太网信号和移动通信信号接入系统， 其特征在于： 包括 近端主机单元和 N个远端用户单元， 该近端主机单元与光网络单元连接接 收和上传以太网信号， 该近端主机单元还与基站连接接收和上传移动通信 信号， 该近端主机单元与该远端用户单元通过五类线或超五类线连接传输 以太网信号和移动通信信号；
其中， 该近端主机单元包括主机变频单元、 主机中心控制单元、 下行 链路信号分配单元、 上行链路信号分配单元、 N个上行差分转单端单元、 N 个下行单端转差分单元以及 N个网络变压器单元；
来自基站的下行链路移动通信信号进入近端主机单元后， 主机变频单 元将该下行链路移动通信信号进行下变频转换后送到下行链路信号分配单 元， 同时主机变频单元将其内部的时钟参考信号也输出到下行链路信号分 配单元， 所述下行链路信号分配单元通过合路器完成变频后的下行链路移 动通信信号与所述时钟参考信号的合路并进一步进行信号的分配， 将下行 链路分配为 N路信号，所述 N个下行单端转差分单元分别将 N路信号进行 单端信号到差分信号的转换， 以便和五类线或超五类线的阻抗进行匹配， 转换为差分信号后， 中心控制单元将一对控制信号分别送入到这每对差分 信号上、 下行链路变换完成后将差分信号加载到五类线的 4和 5这对双绞 线进行传输， 来自用户终端的上行链路移动通信信号通过 7和 8这对双绞 线以差分信号形式送到近端主机单元， 在近端主机单元中， N 个上行差分 转单端单元将上行链路移动通信信号分别转换为单端信号形式提供给上行 链路信号分配单元， 上行链路信号分配单元将 N路信号合并为中频的上行 移动通信信号， 最终到主机变频单元将该上行移动通信信号由中频变回到 射频信号， 向基站传输；
同时， 来自光网络单元的下行以太网信号送入到主机单元后， 分别通 过对应的网络变压器单元加载到五类线或超五类线的 1和 2这对双绞线上， 来自客户端上行以太网信号通过对应的网络变压器单元从五类线或超五类 线的 3和 6这对双绞线传输到光网络单元；
所述远端用户单元包括终端变频单元， 用户端中心控制单元， N个单 端转差分单元， N个差分转单端单元， 以太网数据处理单元， N个网络变 压器单元；
从近端主机单元传过来的以太网信号和移动通信信号， 经 EM1 口进入 到远端用户终端， 1和 2, 3和 6这两对双绞线分别与对应的网络变压器连 接， 各网络变压器连接到以太网数据处理单元， 由以太网数据处理单元提 供宽带接入服务。 中心控制单元从 4和 5这对双绞线上提取出控制信号， 将近端主机单元传输过来的控制信息进行解析， 从而控制终端变频单元和 以太网数据处理单元， 同时将他们的工作状态定时上传到主机单元的中心 控制单元。 通过差分转单端单元完成差分到单端的变换， 并通过高低通滤 波器分离来自 4和 5这对双绞线上的下行移动通信信号和时钟参考信号， 将分离出来的下行移动通信信号送到远端变频单元中进行下行链路的传 输， 将分离出来的时钟参考信号送入到远端变频单元为其锁相环电路提供 参考；
同时， 上行移动通信信号经过远端变频单元变为中频信号， 再通过单 端转差分单元的阻抗变化以及单端到差分转换， 加载到 7和 8这对双绞线 向近端主机单元传输。
2、 如权利要求 1所述的传输以太网信号和移动通信信号接入系统， 其 特征在于： 所述近端主机单元还包括主机端供电单元， 其输出 +48V直流， 分别通过各网络变压器单元的次级线圈馈入到 1和 2, 3和 6这两对双绞线 上， 其中 1和 2这对双绞线接正极直流 +48V, 3和 6接负极直流地；
所述远端用户单元好包括 POE供电单元，所述 POE供电单元从 1和 2, 3和 6这两对双绞线上提取直流供电， 经过 +48V到 +5V的直流转换， 为远 端用户终端的各个单元提供电源。
3、如权利要求 1所述的系统，其特征在于：所述控制信号为符合 RS485 协议的控制信号。
4、 一种传输以太网信号和移动通信信号接入方法， 所述方法包括： 提供一近端主机单元与 N个远端用户单元；
近端主机单元与光网络单元连接接收和上传以太网信号， 近端主机单 元还与基站连接接收和上传移动通信信号， 近端主机单元与该远端用户单 元通过五类线或超五类线连接传输以太网信号和移动通信信号；
其中， 该近端主机单元包括主机变频单元、 主机中心控制单元、 下行 链路信号分配单元、 上行链路信号分配单元、 N个上行差分转单端单元、 N 个下行单端转差分单元以及 N个网络变压器单元；
来自基站的下行链路移动通信信号进入近端主机单元后， 主机变频单 元将该下行链路移动通信信号进行下变频转换后送到下行链路信号分配单 元， 同时主机变频单元将其内部的时钟参考信号也输出到下行链路信号分 配单元， 所述下行链路信号分配单元通过合路器完成下行链路移动通信信 号与所述时钟参考信号的合路并进一步进行信号的分配， 将下行链路分配 为 N路信号，所述 N个下行单端转差分单元分别将 N路信号进行单端信号 到差分信号的转换， 以便和五类线或超五类线的阻抗进行匹配， 转换为差 分信号后， 中心控制单元将一对控制信号分别送入到这每对差分信号上， 下行链路变换完成后将差分信号加载到五类线的 4和 5这对双绞线进行传 输， 来自用户终端的上行链路移动通信信号通过 7和 8这对双绞线以差分 信号形式送到近端主机单元， 在近端主机单元中， N 个上行差分转单端单 元将上行链路移动通信信号分别转换为单端信号形式提供给上行链路信号 分配单元， 上行链路信号分配单元将 N路信号合并为中频的上行移动通信 信号， 最终到主机变频单元将该上行移动通信信号由中频变回到射频信号， 向基站传输；
同时， 来自光网络单元的下行以太网信号送入到主机单元后， 分别通 过对应的网络变压器单元加载到五类线或超五类线的 1和 2这段双绞线上， 来自客户端上行以太网信号通过对应的网络变压器单元从五类线或超五类 线的 3和 6这对双绞线上传输到光网络单元；
所述远端用户单元包括终端变频单元， 用户端中心控制单元， Ν个单 端转差分单元， Ν个差分转单端单元， 以太网数据处理单元， Ν个网络变 压器单元；
从近端主机单元传过来的以太网信号和移动通信信号， 经 EM1 口进入 到远端用户终端， 1和 2, 3和 6这两对双绞线分别于对应的网络变压器连 接， 各网络变压器连接到以太网数据处理单元， 由以太网数据处理单元提 供宽带接入服务。 中心控制单元从 4和 5这对双绞线上提取出控制信号， 将近端主机单元传输过来的控制信息进行解析， 从而控制终端变频单元和 以太网数据处理单元， 同时将他们的工作状态定时上传到主机单元的中心 控制单元， 通过差分转单端单元完成差分到单端的变换， 并通过高低通滤 波器分离来自 4和 5这对双绞线上的下行移动通信信号和时钟参考信号， 将分离出来的下行移动通信信号送到远端变频单元中进行下行链路的传 输， 将分离出来的时钟参考信号送入到远端变频单元为其锁相环电路提供 参考；
同时， 上行移动通信信号经过远端变频单元变为中频信号， 再通过单 端转差分单元的阻抗变化以及单端到差分转换， 加载到 7和 8这对双绞线 向近端主机单元传输。
5、 如权利要求 4所述的传输以太网信号和移动通信信号接入方法， 其 特征在于： 在所述近端主机单元配置主机端供电单元输出 +48V直流， 电流 分别通过各网络变压器单元的次级线圈馈入到 1和 2, 3和 6这两对双绞线 上， 其中 1和 2这对双绞线接正极直流 +48V, 3和 6接负极直流地；
同时， 在所述远端用户单元配置 POE供电单元， 所述 POE供电单元从 1和 2, 3和 6这两对双绞线上提取直流供电，经过 +48V到 +5V的直流转换， 为远端用户终端的各个单元提供电源。
6、 如权利要求 4所述的传输以太网信号和移动通信信号接入方法， 其 特征在于： 所述控制信号为符合 RS485协议的控制信号。
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