公开(公告)号：US07515559B2

公开(公告)日：2009-04-07

申请号：US10794988

申请日：2004-03-05

申请人： Chang-Hoi Koo ,  Jung-Je Son ,  So-Hyun Kim

发明人： Chang-Hoi Koo ,  Jung-Je Son ,  So-Hyun Kim

IPC分类号： H04Q7/00

CPC分类号： H04W36/0055 ,  H04L27/2601

摘要： A communication system using an OFDM (Orthogonal Frequency Division Multiplexing) scheme. The communication system receives neighbor BS (Base Station) information of a plurality of neighbor BSs associated with a plurality of cells adjacent to a cell and uplink-associated information needed for transmitting data to the first BS from the first BS, requests synchronization information needed for establishing synchronization acquisition between the SS and the first BS from the first BS, monitors the plurality of neighbor BSs on the basis of the neighbor BS information associated with the neighbor BSs, and establishing a handoff with the second BS, which is one of the neighbor BSs, based on the result of the neighbor BSs.

摘要翻译： 一种使用OFDM（正交频分复用）方案的通信系统。 通信系统接收与小区相邻的多个小区相关联的多个相邻BS的相邻BS（基站）信息，以及从第一BS向第一BS发送数据所需的上行链路关联信息，请求请求同步信息 从第一BS建立SS与第一BS之间的同步采集，基于与相邻BS相关联的相邻BS信息来监视多个相邻BS，并且与第二BS建立切换，第二BS是邻居 BS基于邻居BS的结果。

公开(公告)号：US07440759B2

公开(公告)日：2008-10-21

申请号：US10941707

申请日：2004-09-15

申请人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

发明人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

IPC分类号： H04Q7/20

CPC分类号： H04W72/08 ,  H04W24/00 ,  H04W28/16 ,  H04W72/0413 ,  H04W72/0453 ,  H04W88/02

摘要： A system and method for dynamically allocating channels in a wireless communication system including multiple sub-channels and multiple frame cells, each of the sub-channels being an assembly including a preset number of sub-frequency bands divided from an overall frequency band, the frame cells using each of the sub-channels as a basic transmission unit and having a frequency domain and a time domain occupied by the sub-channels. A mobile station transmits channel quality information of frame cells to an access point. An access router transmits channel allocation information about the multiple frame cells and sub-channels determined according to the received channel quality information to the access point, and the access point receives the channel allocation information about the multiple frame cells and sub-channels, compares the channel allocation information with newest channel quality information, and allocates a sub-channel of a frame cell selected according to the comparison to the mobile station.

摘要翻译： 一种用于在包括多个子信道和多个小区的无线通信系统中动态分配信道的系统和方法，每个子信道是包括从整个频带划分的预设数量的子频带的组合，所述帧 使用每个子信道作为基本传输单元的小区，并且具有由子信道占据的频域和时域。 移动台向接入点发送帧单元的信道质量信息。 接入路由器向接入点发送关于根据接收的信道质量信息确定的多个小区和子信道的信道分配信息，接入点接收关于多个小区和子信道的信道分配信息， 具有最新信道质量信息的信道分配信息，并且将根据比较选择的帧小区的子信道分配给移动台。

公开(公告)号：US07343167B2

公开(公告)日：2008-03-11

申请号：US11409878

申请日：2006-04-24

申请人： Hyon-Goo Kang ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Seung-Il Yoon ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang

发明人： Hyon-Goo Kang ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Seung-Il Yoon ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang

IPC分类号： H04Q7/20

CPC分类号： H04W60/04 ,  H04W48/20 ,  H04W52/0216 ,  H04W52/0254 ,  H04W52/287 ,  H04W60/02 ,  H04W68/00 ,  Y02D70/126 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station is provided. The method includes the steps of: mode-transiting into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode; detecting movement of the mobile subscriber station in the idle mode into another paging zone covering a target base station, which is different from a paging zone covering the serving base station; and mode-transiting into the awake mode and performing location update together with the target base station when the movement of the mobile subscriber station is detected.

摘要翻译： 提供了一种用于在宽带无线接入通信系统中由移动用户台控制媒体接入控制层的操作模式的方法，所述宽带无线接入通信系统包括移动用户台和向移动用户站提供服务的服务基站。 该方法包括以下步骤：当在唤醒模式下的预定的第一时间间隔期间在服务基站与移动用户台之间没有数据传输时，模式转换到空闲模式; 检测处于空闲模式的移动用户站的移动到与覆盖服务基站的寻呼区域不同的覆盖目标基站的另一寻呼区域; 并且当检测到移动用户站的移动时，模式转换到唤醒模式并与目标基站一起执行位置更新。

公开(公告)号：US20060194581A1

公开(公告)日：2006-08-31

申请号：US11409878

申请日：2006-04-24

申请人： Hyon-Goo Kang ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Seung-II Yoon ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang

发明人： Hyon-Goo Kang ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Seung-II Yoon ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Jae-Jeong Shim ,  Hong-Sung Chang ,  Yong Chang

IPC分类号： H04Q7/20

CPC分类号： H04W60/04 ,  H04W48/20 ,  H04W52/0216 ,  H04W52/0254 ,  H04W52/287 ,  H04W60/02 ,  H04W68/00 ,  Y02D70/126 ,  Y02D70/142 ,  Y02D70/146

摘要： A method for controlling operation modes of a medium access control layer by a mobile subscriber station in a broadband wireless access communication system including the mobile subscriber station and a serving base station providing service to the mobile subscriber station is provided. The method includes the steps of: mode-transiting into an idle mode when there is no data transmission between the serving base station and the mobile subscriber station during a predetermined first time interval in an awake mode; detecting movement of the mobile subscriber station in the idle mode into another paging zone covering a target base station, which is different from a paging zone covering the serving base station; and mode-transiting into the awake mode and performing location update together with the target base station when the movement of the mobile subscriber station is detected.

公开(公告)号：US20060009228A1

公开(公告)日：2006-01-12

申请号：US11156510

申请日：2005-06-20

申请人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

发明人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

IPC分类号： H04Q7/20

CPC分类号： H04W36/20 ,  H04W36/08 ,  H04W72/0406 ,  H04W88/08

摘要： A system and method for allocating a safety channel in a broadband wireless access (BWA) communication system including a serving base station (BS) for providing a service to a mobile station (MS) and neighbor BSs. Upon receiving a request for allocation of the safety channel from the MS, the serving BS sends a request for allocation of the safety channel to a target BS having the best channel condition among the neighbor BSs. Upon receiving information indicating possibility of allocating the safety channel from the target BS, the serving BS controls the MS such that the MS performs communication through the allocated safety channel. Upon detecting a need for receiving a safety channel, the MS sends, to the serving BS, information indicating that the MS should be allocated the safety channel, and receives a safety channel allocated according to a control signal from the serving BS.

摘要翻译： 一种用于在宽带无线接入（BWA）通信系统中分配安全信道的系统和方法，所述宽带无线接入（BWA）通信系统包括用于向移动台（MS）和相邻BS提供服务的服务基站（BS）。 在从MS接收到对安全信道的分配请求之后，服务BS向邻居BS中具有最佳信道条件的目标BS发送安全信道分配请求。 在接收到指示从目标BS分配安全信道的可能性的信息时，服务BS控制MS使得MS通过所分配的安全信道进行通信。 在检测到需要接收安全信道时，MS向服务BS发送指示MS应被分配安全信道的信息，并且接收根据来自服务BS的控制信号分配的安全信道。

公开(公告)号：US20050250499A1

公开(公告)日：2005-11-10

申请号：US11124765

申请日：2005-05-09

申请人： Sung-Jin Lee ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Hyun-Jeong Kang ,  So-Hyun Kim ,  Yeong-Moon Son

发明人： Sung-Jin Lee ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Hyun-Jeong Kang ,  So-Hyun Kim ,  Yeong-Moon Son

IPC分类号： H04L12/28 ,  H04W36/08 ,  H04W84/12 ,  H04Q7/20

CPC分类号： H04W36/0055 ,  H04W84/12

摘要： Disclosed is a method and a system for performing a handover capable of minimizing a service delay in a broadband wireless access communication system including a mobile station (MS), a serving base station (BS) providing services to the MS, and a target BS to which the MS hands over. The method comprises the steps of detecting that the handover from the serving BS to the target BS is necessary; and transmitting a request to the serving BS in order to perform portions of a handover process prior to the handover to the target BS.

摘要翻译： 公开了一种用于执行能够使包括移动站（MS），向MS提供服务的服务基站（BS）和移动台（MS））的宽带无线接入通信系统中的服务延迟最小化的切换的方法和系统，以及目标BS MS移交。 该方法包括以下步骤：检测从服务BS到目标BS的切换是必需的; 以及向所述服务BS发送请求，以便在切换到所述目标BS之前执行切换过程的部分。

公开(公告)号：US20050215279A1

公开(公告)日：2005-09-29

申请号：US11073114

申请日：2005-03-04

申请人： Jae-Jeong Shim ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Hyon-Goo Kang ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Seung-Il Yoon ,  Hong-Sung Chang ,  Yong Chang

发明人： Jae-Jeong Shim ,  Bong-Gee Song ,  Kwang-Seop Eom ,  Seung-Eun Hong ,  Yeong-Moon Son ,  So-Hyun Kim ,  Hyon-Goo Kang ,  Tae-Won Kim ,  Geun-Hwi Lim ,  Jung-Shin Park ,  Seung-Il Yoon ,  Hong-Sung Chang ,  Yong Chang

IPC分类号： H04B7/26 ,  H04W8/26 ,  H04W76/02 ,  H04Q7/20

CPC分类号： H04W76/11 ,  H04W8/26

摘要： A method for managing a service flow of a mobile subscriber station (MSS) in a serving base station (BS) for a mobile communication system including the serving BS in communication with the MSS through a wireless access channel, and at least one active BS included in an active BS set of the MSS. Upon receiving a service flow management request from the MSS, the serving BS updates a service flow with the MSS, and transmits the updated service flow to the active BS using a predetermined message. Upon receiving a response message for the updated service flow from the active BS, the serving BS transmits service flow information of each active BS included in the response message to the MSS.

摘要翻译： 一种用于管理用于移动通信系统的服务基站（BS）中的移动用户台（MSS）的服务流的方法，所述移动通信系统包括通过无线接入信道与MSS通信的服务BS，以及包括至少一个活动BS 在MSS的主动BS组中。 在从MSS接收到服务流管理请求时，服务BS使用MSS更新服务流，并使用预定消息将更新后的业务流发送到活动BS。 在从活动BS接收到针对更新的服务流的响应消息时，服务BS向MSS发送响应消息中包括的每个活动BS的业务流信息。

公开(公告)号：US20050201327A1

公开(公告)日：2005-09-15

申请号：US11080027

申请日：2005-03-14

申请人： So-Hyun Kim ,  Seung-Eun Hong ,  Hyon-Goo Kang ,  Hong-Sung Chang ,  Chang-Hoi Koo ,  Jae-Jeong Shim ,  Geun-Hwi Lim ,  Jung-Won Kim ,  Hyun-Jeong Kang ,  Sung-Jin Lee ,  Yeong-Moon Son ,  Jung-Je Son ,  Jung-Shin Park ,  Hyoung-Kyu Lim

发明人： So-Hyun Kim ,  Seung-Eun Hong ,  Hyon-Goo Kang ,  Hong-Sung Chang ,  Chang-Hoi Koo ,  Jae-Jeong Shim ,  Geun-Hwi Lim ,  Jung-Won Kim ,  Hyun-Jeong Kang ,  Sung-Jin Lee ,  Yeong-Moon Son ,  Jung-Je Son ,  Jung-Shin Park ,  Hyoung-Kyu Lim

IPC分类号： H04L1/00 ,  H04L1/08 ,  H04L1/18 ,  H04L5/02 ,  H04L12/28 ,  H04L27/26 ,  H04W72/08 ,  H04Q7/00

CPC分类号： H04W72/085 ,  H04L1/0003 ,  H04L1/0026 ,  H04L1/08 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0039 ,  H04L5/0046 ,  H04L5/0048 ,  H04L5/0094 ,  H04W72/0413

摘要： Disclosed is a method for allocating a safety channel in a wireless communication system which divides a full frequency band into a plurality of subcarrier bands and includes subchannels, each of which is a set of a predetermined number of subbands, each of which is a set of a predetermined number of contiguous subcarriers, where the subchannels include a safety subchannel allocated to particular subscriber stations (SSs), which is unused in a neighbor base station. The method comprises the steps of: transmitting, by the SS, its channel quality information to the base station (BS) when a channel quality of a subchannel allocated to the SS is less than to predetermined reference channel quality; and allocating a safety subchannel to the SS, by the BS upon receiving the channel quality information indicating that the channel quality of the subchannel is less than to the reference channel quality.

摘要翻译： 公开了一种在无线通信系统中分配安全信道的方法，该无线通信系统将全频带划分为多个子载波频带，并且包括子信道，每个子信道是预定数量的子带的集合，每个子带是 预定数量的连续子载波，其中子信道包括分配给相邻基站中未使用的特定用户站（SS）的安全子信道。 该方法包括以下步骤：当分配给SS的子信道的信道质量小于预定参考信道质量时，由SS向基站（BS）发送其信道质量信息; 以及在BS接收到指示子信道的信道质量小于参考信道质量的信道质量信息时，由BS分配安全子信道。

公开(公告)号：US20050197126A1

公开(公告)日：2005-09-08

申请号：US11074203

申请日：2005-03-07

申请人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

发明人： Hyun-Jeong Kang ,  Chang-Hoi Koo ,  Jung-Je Son ,  Hyoung-Kyu Lim ,  Yeong-Moon Son ,  So-Hyun Kim ,  Sung-Jin Lee

IPC分类号： H04B7/26 ,  H04W36/08 ,  H04W72/04 ,  H04Q7/20

CPC分类号： H04W36/08 ,  H04W72/04

摘要： In a BWA communication system, an MSS changes its connection from the serving BS to the target BS, and sends the target BS a report indicating that the MSS will change its connection upon detecting occurrence of a pingpong effect in a process of performing a network re-entry operation with the target BS. The target BS sends the serving BS a notification indicating that the MSS will change its connection. Upon receiving from the MSS a report indicating that it will change its connection to the serving BS, the serving BS allocates a contention-free-based ranging resource to the MSS so that the MSS connects a communication service with the serving BS using the contention-free-based ranging resource, minimizing a service delay.

摘要翻译： 在BWA通信系统中，MSS将其从服务BS的连接改变为目标BS，并且在目标BS发送表示在执行网络重传的过程中检测到乒乓效应的发生时指示MSS将改变其连接的报告 与目标BS进行重试操作。 目标BS向服务BS发送指示MSS将改变其连接的通知。 在从MSS接收到指示其将改变其与服务BS的连接的报告时，服务BS向MSS分配基于无竞争的测距资源，使得MSS使用竞争性连接将服务BS与通信服务连接， 基于自由的测距资源，最小化服务延迟。

公开(公告)号：US20050111429A1

公开(公告)日：2005-05-26

申请号：US10945206

申请日：2004-09-20

申请人： So-Hyun Kim ,  Chang-Hoi Koo ,  Jung-Je Son ,  Yeong-Moon Son ,  Sung-Jin Lee ,  Hyun-Jeong Kang

发明人： So-Hyun Kim ,  Chang-Hoi Koo ,  Jung-Je Son ,  Yeong-Moon Son ,  Sung-Jin Lee ,  Hyun-Jeong Kang

IPC分类号： H04J11/00 ,  H04L5/02 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04W72/0453 ,  H04J13/16 ,  H04L5/023 ,  H04W40/02 ,  H04W72/0413 ,  H04W72/042

摘要： A system and method for dynamically allocating a frame cell (FC) and subchannel (FC/subchannel) is disclosed. An access point receives channel quality information (CQIs) which is fed back from a plurality of access terminals on an FC-by-FC basis, and determines a modulation and coding scheme (MCS) to be applied to each of the access terminals. If access terminals whose FCs/subchannels must be changed are detected from the plurality of the access terminals, the access point sends an FC/subchannel change request for the detected access terminals to an access router. The access router generates weights for all FCs, allocates an FC/subchannel set by selecting a predetermined number of FCs/subchannels considering the weights of the FCs for the access terminals corresponding to the received FC/subchannel change request, and transmits information on the allocated FC/subchannel set to the access point. The access point selects and allocates a particular FC/subchannel from among FCs/subchannels in the FC/subchannel set information received from the access router for the access terminals whose FCs/subchannels must be changed, based on CQIs last received from the access terminals whose FCs/subchannels must be changed.

摘要翻译： 公开了一种用于动态分配帧单元（FC）和子信道（FC /子信道）的系统和方法。 接入点接收在FC-by-FC的基础上从多个接入终端反馈的信道质量信息（CQI），并且确定要应用于每个接入终端的调制和编码方案（MCS）。 如果从多个接入终端检测到其FC /子信道必须被改变的接入终端，则接入点向接入路由器发送检测到的接入终端的FC /子信道改变请求。 接入路由器为所有FC产生权重，考虑到与接收的FC /子信道改变请求对应的接入终端的FC的权重，通过选择预定数量的FC /子信道来分配FC /子信道集，并且发送关于所分配的 FC /子通道设置到接入点。 接入点根据从接入路由器接收的FC /子信道集信息，从FC /子信道接收到的FC /子信道必须改变的FC /子信道集中选择并分配特定的FC /子信道， FC /子通道必须更改。