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    • 1. 发明申请
    • Base transceiver station having mobile and fixed wireless service distribution functions
    • 具有移动和固定无线业务分配功能的基站收发台
    • US20060189354A1
    • 2006-08-24
    • US11357650
    • 2006-02-17
    • Gyu-Woong LeeKwan-Soo LeeChang-Sup ShimYun-Je OhYong-Gyoo KimSeong-Taek Hwang
    • Gyu-Woong LeeKwan-Soo LeeChang-Sup ShimYun-Je OhYong-Gyoo KimSeong-Taek Hwang
    • H04B1/38H04M1/00
    • H04W88/10H04W92/20
    • A Base Transceiver Station (BTS) for interworking a Wireless Local Area Network (W-LAN) and a mobile communication network through a Radio-over-Fiber (RoF) link is provided. The BTS having mobile and fixed wireless service distribution functions includes a Wireless Local Area Network Access Point (W-LAN AP), a wireless service function block, a Radio Frequency (RF) converter, and an optical transmitter. The wireless service function block performs transmission/reception to/from a predetermined mobile terminal via a connection for the voice call communication and data communication with an external Base Station Controller (BSC). The RF converter performs a data communication connection with the external BSC, up-converts data from the BSC into W-LAN frequency band data, and down-converts data to the BSC into baseband data. The optical transmitter transmits the up-converted data of the packet data RF converter to the W-LAN AP through a RoF link.
    • 提供了一种用于通过无线光纤(RoF)链路互联无线局域网(W-LAN)和移动通信网络的基站收发台(BTS)。 具有移动和固定无线业务分配功能的BTS包括无线局域网接入点(W-LAN AP),无线业务功能块,射频(RF)转换器和光发射机。 无线服务功能块经由用于语音呼叫通信的连接和与外部基站控制器(BSC)的数据通信的预定移动终端执行发送/接收。 RF转换器执行与外部BSC的数据通信连接,将来自BSC的数据上变频为W-LAN频带数据,并将数据下变频为基带数据。 光发射机通过RoF链路将分组数据RF转换器的上转换数据发送到W-LAN AP。
    • 8. 发明申请
    • Multi-wavelength bidirectional optical transceiver having monitors
    • 具有监视器的多波长双向光收发器
    • US20070206953A1
    • 2007-09-06
    • US11701779
    • 2007-02-02
    • Gyu-Woong LeeChang-Sup ShimYun-Je OhSeong-Taek Hwang
    • Gyu-Woong LeeChang-Sup ShimYun-Je OhSeong-Taek Hwang
    • H04B10/00
    • G02B6/4246G02B6/29362G02B6/4249
    • A multi-wavelength bidirectional optical transceiver includes a plurality of optical transmitters for generating and outputting forward optical signals, a plurality of optical receivers for performing optoelectric conversion on reverse optical signals, a band splitter for outputting the forward optical signals that are input from the plurality of optical transmitters to outside the multi-wavelength bidirectional optical transceiver and for outputting reverse optical signals that are input from outside the multi-wavelength bidirectional optical transceiver to the plurality of optical receivers, a power splitter on an optical path between the plurality of optical transmitters and the band splitter for power-splitting the forward optical signals that are input from the plurality of optical transmitters and for outputting portions of the forward optical signals to the band splitter, and a plurality of monitors for performing optoelectric conversion on the remaining portions of the forward optical signals that are input from the band splitter.
    • 多波长双向光收发器包括用于产生和输出正向光信号的多个光发射机,用于在反光信号上执行光电转换的多个光接收机,用于输出从多个光信号输入的正向光信号的分束器 的光发射机到多波长双向光收发器之外并且用于输出从多波长双向光收发器外部输入到多个光接收器的反向光信号;在多个光发射机之间的光路上的功率分配器 以及分束器,用于对从多个光发射机输入的正向光信号进行功率分配,并将前向光信号的一部分输出到分束器;以及多个监视器,用于对其中的剩余部分进行光电转换 向前 从分束器输入的光信号。
    • 9. 发明授权
    • ROF link apparatus capable of stable TDD wireless service
    • 能够稳定TDD无线服务的ROF链路装置
    • US07733825B2
    • 2010-06-08
    • US11514440
    • 2006-09-01
    • Sang-Ho KimYun-Je OhSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSung-Kee KimHan-Lim LeeJae-Hoon LeeYong-Gyoo KimDae-Eun Choi
    • Sang-Ho KimYun-Je OhSeong-Taek HwangByung-Jik KimGyu-Woong LeeHoon KimSung-Kee KimHan-Lim LeeJae-Hoon LeeYong-Gyoo KimDae-Eun Choi
    • H04W4/00H04L12/56
    • H04W88/085
    • A radio over fiber (ROF) link apparatus capable of a stable TDD wireless service for a time division duplexing (TDD) baseband signal includes a central access platform (CAP) for receiving various kinds of data including the TDD baseband signal from upper layers, multiplexing the data, electro-optically converting the multiplexed data, and transmitting the converted data as downstream data through an optical fiber, and opto-electrically converting upstream data received through the optical fiber, demultiplexing the converted upstream data, and transmitting the demultiplexed upstream data to the respective upper layers, and a remote access unit (RAU) for receiving the downstream data through the optical fiber, opto-electrically converting the received downstream data to the multiplexed data, demultiplexing the multiplexed data, performing a wireless access process of the demultiplexed data, and transmitting the wireless access processed data to a wireless local area network (WLAN) service terminal through an antenna.
    • 能够对TDD时基双工(TDD)基带信号进行稳定的TDD无线业务的无线电光纤(ROF)链路装置包括用于从上层接收包括TDD基带信号的各种数据的中央接入平台(CAP) 数据,电光转换多路复用数据,并通过光纤将转换后的数据作为下行数据发送,并对通过光纤接收的上行数据进行光电转换,对转换的上行数据进行解复用,并将解复用的上行数据发送到 各自的上层以及用于通过光纤接收下游数据的远程访问单元(RAU),将接收到的下游数据光电转换为多路复用数据,解复用多路复用数据,执行解复用数据的无线接入处理 ,并将无线接入处理的数据发送到无线局域网(WLAN)服务 e端子通过天线。