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    • 1. 发明申请
    • METHOD AND APPARATUS FOR TIME SYNCHRONIZATION USING GPS INFORMATION IN COMMUNICATION SYSTEM
    • 在通信系统中使用GPS信息进行时间同步的方法和装置
    • US20090034672A1
    • 2009-02-05
    • US12104662
    • 2008-04-17
    • Jae-Hun CHOByung-Duck CHOYun-Je OHSeong-Taek HWANG
    • Jae-Hun CHOByung-Duck CHOYun-Je OHSeong-Taek HWANG
    • H04L7/06G01S1/00
    • H04J3/0697G04R20/06H04J3/0644H04J3/0664H04J3/0667
    • A method and apparatus for time synchronization (TS) method using GPS information in a communication system synchronizing the time of slave nodes, which do not have a GPS receiver, by using GPS information of a node having a GPS receiver. The method includes the steps of extracting 1PPS, TOD, 1PPS_en, and clocks using GPS signals by a grand master node having a GPS receiver, stabilizing the signals, generating a sync message for TS, and transmitting the sync message to a slave node; receiving the sync message by the slave node and conducting a TS operation using OFCC synchronization technology extracting 1PPS, TOD, and 1PPS_en signals using the modified TOD information by the block and delivering to a stabilization block of the slave node for stabilization; and redelivering to the TS block to update TOD information and generate a sync message for TS of a second slave node.
    • 通过使用具有GPS接收机的节点的GPS信息,在通信系统中使用GPS信息来同步没有GPS接收机的从节点的时间的时间同步(TS)方法和方法。 该方法包括以下步骤:通过具有GPS接收机的大主节点提取1PPS,TOD,1PPS_en和使​​用GPS信号的时钟,稳定信号,产生用于TS的同步消息,并将同步消息发送到从节点; 由所述从节点接收同步消息,并且使用OFCC同步技术进行TS操作,所述同步技术使用所述块的修改的TOD信息提取1PPS,TOD和1PPS_en信号,并将其传送到所述从节点的稳定块以进行稳定; 并且重新发送到TS块以更新TOD信息并且生成用于第二从节点的TS的同步消息。
    • 3. 发明申请
    • BRIDGE-BASED RADIO ACCESS STATION BACKBONE NETWORK SYSTEM AND SIGNAL PROCESSING METHOD THEREFOR
    • 基于BRIDGE的无线接入站背板网络系统及其信号处理方法
    • US20080151914A1
    • 2008-06-26
    • US11958439
    • 2007-12-18
    • Jae-Hun CHOHoon KimSeong-Taek Hwang
    • Jae-Hun CHOHoon KimSeong-Taek Hwang
    • H04L12/28
    • H04W8/04H04W8/26H04W40/36H04W60/00H04W80/04H04W88/08H04W92/02Y02D70/00
    • A signal processing method in a bridge-based RAS backbone network system is provided, in which an MN within a network periodically transmits to an HLR a route-update message for registration updating, if the MN is in active mode and transmits to the HLR a paging-update message having a transmission period longer than that transmission period of the route-update message, for registration updating, if the MN is in idle mode, each of bridges and the HLR stores location information about the MN in a soft state with an age set for the location information in a routing cache according to the route-update message received from the MN, and each of BSBs, SCBs, and an SIB selected from a plurality of SIBs stores location information about the MN in a soft state with an age set for the location information according to the paging-update message received from the MN.
    • 提供了一种基于桥梁的RAS骨干网系统中的信号处理方法,其中,如果MN处于活动模式并且向HLR发送一个网络中的一个MN周期性地向HLR发送用于注册更新的路由更新消息 寻呼更新消息具有比路由更新消息的传输周期长的传输周期,用于注册更新,如果MN处于空闲模式,则每个网桥和HLR将处于软状态的MN的位置信息存储在软状态中,具有 根据从MN接收到的路由更新消息,在路由高速缓存中为位置信息设置的年龄,并且从多个SIB中选择的每个BSB,SCB和SIB存储关于具有软状态的MN的位置信息,其中 根据从MN接收的寻呼更新消息为位置信息设置的年龄。