公开(公告)号：US08059666B2

公开(公告)日：2011-11-15

申请号：US11958439

申请日：2007-12-18

Applicant: Jae-Hun Cho ,  Hoon Kim ,  Seong-Taek Hwang

Inventor： Jae-Hun Cho ,  Hoon Kim ,  Seong-Taek Hwang

IPC: H04L12/28

CPC classification number: H04W8/04 ,  H04W8/26 ,  H04W40/36 ,  H04W60/00 ,  H04W80/04 ,  H04W88/08 ,  H04W92/02 ,  Y02D70/00

Abstract: 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.

Abstract translation: 提供了一种基于桥梁的RAS骨干网络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。

公开(公告)号：US07904106B2

公开(公告)日：2011-03-08

申请号：US11974402

申请日：2007-10-12

Applicant: Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

Inventor： Shuangfeng Han ,  Seong-Taek Hwang ,  Hoon Kim ,  Sang-Ho Kim ,  Jae-Hun Cho ,  Jae-Hoon Lee ,  Ki-Uk Song

IPC: H04B1/04 ,  H04B7/02 ,  H04B7/00 ,  H04B7/185 ,  H04B1/02 ,  H04B17/00 ,  H04B1/66 ,  H04B3/46 ,  H03C7/02 ,  H04M1/00 ,  H04L27/00 ,  H01Q3/00

CPC classification number: H04W52/42 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0691 ,  H04L1/0625 ,  H04L1/0668 ,  H04W52/04

Abstract: Disclosed is an apparatus and method for adaptively allocating transmission power for beamforming combined with orthogonal space-time block codes (OSTBC) in a distributed wireless communication system, the apparatus comprising: a plurality of sub-arrays for beamforming, which are geographically distributed and each of which comprises a plurality of distributed antennas placed in random groups; and a central processing unit for identifying performances of subsets by applying a predetermined power allocation scheme according to subsets which can be obtained by combining the sub-arrays, by means of a Nakagami fading parameter and information about large-scale fading of each of the sub-arrays, fed back from a receiving party, for determining a subset having a best performance as an optimal subset according to the identified performances, and for performing power allocation based on the subset set as the optimal subset.

Abstract translation: 公开了一种用于在分布式无线通信系统中自适应地分配与正交空时块码（OSTBC）组合的波束成形的发射功率的装置和方法，该装置包括：多个用于波束成形的子阵列，其在地理上分布并且每个 其中包括放置在随机组中的多个分布式天线; 以及中央处理单元，用于通过应用根据可以通过组合子阵列获得的子集的预定功率分配方案，通过Nakagami衰落参数和关于每个子级的大规模衰落的信息来应用子集的性能 - 从接收方反馈的用于根据所识别的性能确定具有最佳性能的子集作为最佳子集的子阵列，以及用于基于所述子集作为所述最佳子集执行功率分配。

公开(公告)号：US07630694B2

公开(公告)日：2009-12-08

申请号：US11395806

申请日：2006-03-31

Applicant: Yong-Gyoo Kim ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee

Inventor： Yong-Gyoo Kim ,  Seong-Taek Hwang ,  Byung-Jik Kim ,  Gyu-Woong Lee ,  Hoon Kim ,  Sang-Ho Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Jae-Hoon Lee

IPC: H01Q11/12

CPC classification number: H04L5/26 ,  H04B10/25758 ,  H04W16/26

Abstract: Disclosed is a remote access unit for transmitting and receiving upstream and downstream data in which channels having different transmission scheme are multiplexed, and an optical network for bi-directional wireless communication using same. The remote access unit includes an antenna for receiving the downstream data and wirelessly transmitting same and for receiving the upstream data and providing same to the remote access unit, a switch for outputting downstream time division channels of the downstream data to the antenna and for receiving upstream time division channels of the upstream data from the antenna, and a controller for controlling the switch in order to prevent the upstream and downstream time division channels from overlapping.

Abstract translation: 公开了一种用于发送和接收上行和下行数据的远程访问单元，其中具有不同传输方案的信道被复用，以及用于使用其的双向无线通信的光网络。 远程接入单元包括：天线，用于接收下行数据并进行无线发送，并用于接收上行数据并将其提供给远程接入单元;开关，用于向下游天线输出下游数据的下行时分信道​​，并用于接收上游 来自天线的上行数据的时分信道，以及用于控制交换机的控制器，以防止上游和下游时分信道重叠。

公开(公告)号：US20080159230A1

公开(公告)日：2008-07-03

申请号：US11968682

申请日：2008-01-03

Applicant: Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Hoon Kim

Inventor： Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Hoon Kim

IPC: H04Q7/00 ,  H04Q7/20

CPC classification number: H04W36/0011 ,  H04W8/04 ,  H04W8/087 ,  H04W80/02

Abstract: A bridge-based cellular Ethernet system and a handover processing method therefore are provided. In the bridge-based cellular Ethernet system, an HLR manages configuration information about network entities, and a plurality of Base Station Bridges (BSBs) are connected to a plurality of Base Stations (BSs), each BSB including a layer 2 switch, and a plurality of SCBs connected to part of the BSBs under the SCBs. Each SCB includes a layer 2 switch forming a core network, and SCB monitors the signal power of a Mobile Node (MN) within its service area, determines whether the MN is to move to another site, selects a new SCB to which the MN is to move, sends necessary path information to associated SCBs and the HLR, for setting of the path information in the associated SCBs and the HLR, and commands a handover to the MN.

Abstract translation: 因此，提供了一种基于桥的蜂窝以太网系统和切换处理方法。 在基于桥的蜂窝以太网系统中，HLR管理有关网络实体的配置信息，并且多个基站桥（BSB）连接到多个基站（BS），每个BSB包括层2交换机和 多个SCB连接到SCB下的部分BSB。 每个SCB包括形成核心网的层2交换机，并且SCB监视其服务区域内的移动节点（MN）的信号功率，确定MN是否移动到另一站点，选择MN所在的新SCB 向相关联的SCB和HLR发送必要的路径信息，用于设置相关联的SCB和HLR中的路径信息，并且命令切换到MN。

公开(公告)号：US20080151914A1

公开(公告)日：2008-06-26

申请号：US11958439

申请日：2007-12-18

Applicant: Jae-Hun CHO ,  Hoon Kim ,  Seong-Taek Hwang

Inventor： Jae-Hun CHO ,  Hoon Kim ,  Seong-Taek Hwang

IPC: H04L12/28

CPC classification number: H04W8/04 ,  H04W8/26 ,  H04W40/36 ,  H04W60/00 ,  H04W80/04 ,  H04W88/08 ,  H04W92/02 ,  Y02D70/00

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20080107202A1

公开(公告)日：2008-05-08

申请号：US11906370

申请日：2007-10-02

Applicant: Han-Lim Lee ,  Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hoon Kim

Inventor： Han-Lim Lee ,  Shuangfeng Han ,  Yun-Je Oh ,  Seong-Taek Hwang ,  Hoon Kim

IPC: H04B7/02

CPC classification number: H04L27/18 ,  H04B7/0413 ,  H04B10/2575 ,  H04J13/00

Abstract: A multiple-input multiple-output (MIMO) communication system includes a base station and a relay station that are connected through an optical fiber. The relay station wirelessly transmits through a plurality of antennas a signal received from the base station. The base station includes a plurality of symbol mappers for mapping input bit streams into a plurality of symbol signals; a MIMO multiplexer generating a plurality of exchange signals by exchanging bits of the symbol signals; and a plurality of code spreaders generating a plurality of spread signals by band spreading the exchange signals. The adoption of a wire transmission scheme for connecting the base station with the relay station through a single optical fiber provides benefits in cost reduction and complexity as the number of electrical-to-optical converters is reduced, and the bandwidth is superior to those in wireless transmission scheme

Abstract translation: 多输入多输出（MIMO）通信系统包括通过光纤连接的基站和中继站。 中继站通过多个天线无线地发送从基站接收的信号。 基站包括用于将输入比特流映射成多个符号信号的多个符号映射器; MIMO多路复用器，通过交换所述符号信号的位来产生多个交换信号; 以及多个代码扩展器，通过对交换信号进行频谱扩展来产生多个扩展信号。 采用通过单个光纤将基站与中继站连接的有线传输方案随着电 - 光转换器的数量的减少和复杂度的降低和复杂性的提高，带宽优于无线 传输方案

公开(公告)号：US20080045221A1

公开(公告)日：2008-02-21

申请号：US11893801

申请日：2007-08-17

Applicant: Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Jong-Hee Kim ,  Jong-Ho Yoon

Inventor： Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Jong-Hee Kim ,  Jong-Ho Yoon

IPC: H04Q7/20

CPC classification number: H04W36/12 ,  H04W76/20

Abstract: A method of treating a handover in a bridge-based radio access station backbone network including a plurality of base station bridges each including a two-tiered switch connected with a plurality of radio access stations, a plurality of SCBs (Site Core Bridges) each composed of two-tiered switch for constituting the core network, and an HLR (Home Location Register) for managing the structural information of the network constituents. The SCB stores the terminal information containing the receiving address of the initial terminal registration message and the SCB to delete the terminal information in response to a disconnection message of the terminal caused by handover, to request the SCBs in the terminal end of the old MAC-in-MAC tunnel to delete the tunnel information and the terminal information, and to inform the HLR of initiating the handover to change the registered operational state of the terminal.

Abstract translation: 一种处理基于桥的无线电接入站骨干网中的切换的方法，包括多个基站桥，每个基站桥包括与多个无线电接入站连接的双层交换机，多个SCB（站点核心桥） 用于构成核心网络的双层交换机，以及用于管理网络组成部分的结构信息的HLR（归属位置寄存器）。 SCB存储包含初始终端注册消息的接收地址的终端信息和SCB，以响应于由切换引起的终端的断开消息来删除终端信息，以请求旧的MAC-CSCF的终端中的SCB， 在MAC隧道中删除隧道信息和终端信息，并通知HLR发起切换以改变终端的注册操作状态。

公开(公告)号：US20080002625A1

公开(公告)日：2008-01-03

申请号：US11644575

申请日：2006-12-22

Applicant: Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Yun-Je Oh ,  Hoon Kim ,  Han-Kyun Jung

Inventor： Jae-Hun Cho ,  Seong-Taek Hwang ,  Jong-Ho Yoon ,  Yun-Je Oh ,  Hoon Kim ,  Han-Kyun Jung

IPC: H04Q7/00

CPC classification number: H04W8/26 ,  H04W4/00 ,  H04W8/005 ,  H04W40/246 ,  H04W40/36 ,  H04W80/04 ,  H04W88/08

Abstract: Disclosed is a bridged portable internet system, which includes: a plurality of edge bridges entirely connected as a mesh structure to form a core network, and configured as a layer 2 switch; a plurality of Radio Access Stations (RASs) connected to one of the plurality of edge bridges to provide portable internet services to Mobile Nodes (MNs) within the range of services; and a Neighbor Discovery Server (NDS) for supporting neighbor discovery of components in the network and storing and managing configuration information of the components, wherein each of the plurality of edge bridges maintains an optimal path through a predetermined routing protocol, identifies the destination of a Media Access Control (MAC) frame transmitted by an MN connected to an edge bridge itself through a corresponding RAS by referring to the configuration information from the NDS so as to transmit a corresponding MAC frame to the MAC address of an edge bridge to which a corresponding CN is connected by performing MAC in MAC encapsulation if receiving a MAC in MAC encapsulated frame with its own MAC address as a destination, and performs MAC in MAC encapsulation with the frame to delete an outer MAC address and to transmit an original MAC frame to a corresponding MN.

Abstract translation: 公开了一种桥接便携式互联网系统，其包括：多个边缘网桥，其完全连接为网状结构以形成核心网络，并且被配置为层2交换机; 连接到所述多个边缘网桥之一的多个无线电接入站（RAS），以向所述服务范围内的移动节点（MN）提供便携式因特网服务; 和邻居发现服务器（NDS），用于支持网络中组件的邻居发现，并存储和管理组件的配置信息，其中多个边缘网桥中的每一个维护通过预定路由协议的最佳路径，识别一个 通过参考来自NDS的配置信息，通过相应的RAS连接到边缘网桥本身的MN发送的媒体访问控制（MAC）帧，以便将相应的MAC帧发送到对应的边缘网桥的MAC地址， 如果以MAC自身的MAC地址为目的地的MAC封装帧中接收到MAC，则MAC通过MAC封装进行MAC连接，并且利用该MAC进行MAC封装，以删除外部MAC地址并将原始MAC帧发送到 相应的MN。

公开(公告)号：US20070206513A1

公开(公告)日：2007-09-06

申请号：US11642572

申请日：2006-12-20

Applicant: Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Sihai Wang ,  Jong-Ho Yoon

Inventor： Jae-Hun Cho ,  Seong-Taek Hwang ,  Hoon Kim ,  Sihai Wang ,  Jong-Ho Yoon

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04L12/4625

Abstract: Disclosed is a method, apparatus and computer-readable medium for selecting a root bridge when a spanning tree is configured in an Ethernet network including a plurality of legacy switches and a plurality of synchronous switches. The method comprises the steps of providing in advance identification information in a configuration BPDU message of the synchronous switch, the identification information representing that a corresponding switch is an AV switch, broadcasting configuration BPDU messages by the legacy switches and the synchronous switches; and receiving configuration BPDU messages by the synchronous switch from other switches, confirming bridge priorities according to the synchronous switches through the received configuration BPDU message and the identification information to select a synchronous root bridge, receiving configuration BPDU messages by the legacy switch from other switches, and confirming bridge priorities through the received configuration BPDU messages to select a legacy root bridge.

Abstract translation: 公开了一种在包括多个传统交换机和多个同步交换机的以太网中配置生成树时选择根桥的方法，装置和计算机可读介质。 该方法包括以下步骤：事先提供同步交换机的配置消息中的识别信息，表示对应的交换机是AV交换机的识别信息，传统交换机和同步交换机广播配置消息; 通过同步交换机从其他交换机接收配置消息，通过接收到的配置消息和识别信息根据同步交换机确认桥优先级，选择同步根桥，从其他交换机接收传统交换机的配置消息， 并通过接收到的配置BPDU消息来确认桥优先级，以选择传统根桥。

公开(公告)号：US20070127931A1

公开(公告)日：2007-06-07

申请号：US11607701

申请日：2006-12-01

Applicant: Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

Inventor： Hoon Kim ,  Sung-Kee Kim ,  Han-Lim Lee ,  Seong-Taek Hwang

IPC: H04B10/04 ,  H04B10/12

CPC classification number: H04B10/40

Abstract: Disclosed is an optical transceiver module for modulating a binary signal into an optical signal and outputting the optical signal. In one aspect, the optical transceiver module comprises a tap for dividing a binary signal into first and second binary signals, a laser source for frequency-modulating the first binary signal divided by the tap, and an intensity modulator for modulating the second binary signal divided by the tap and the frequency-modulated signal of the laser source into a phase-inverted optical signal.

Abstract translation: 公开了一种用于将二进制信号调制成光信号并输出​​光信号的光收发模块。 一方面，光收发器模块包括用于将二进制信号分成第一和第二二进制信号的抽头，用于对由分接头划分的第一二进制信号进行频率调制的激光源和用于调制分频的第二二进制信号的强度调制器 通过抽头和激光源的调频信号变为相位反转的光信号。