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    System and method for supporting soft handover in a broadband wireless access communication system
    5.
    发明授权
    System and method for supporting soft handover in a broadband wireless access communication system 有权
    用于在宽带无线接入通信系统中支持软切换的系统和方法

    公开(公告)号：US07593732B2

    公开(公告)日：2009-09-22

    申请号：US11153209

    申请日：2005-06-15

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

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

    IPC分类号： H04W36/00

    CPC分类号： H04W36/18 ,  H04W16/24 ,  H04W36/06

    摘要： A method for supporting handover in a BWA communication system is provided. The system includes an MS, a serving BS, and a plurality of neighbor BSs. The coverage area of each of the BSs is divided into sectors using different subcarrier bands. The MS collects information broadcast from the serving BS on the serving BS and the neighbor BS, measures a signal level for each of the sectors of the serving BS and the neighbor BSs according to the collected information, and sends a handover request based on the measured signal level for each of the sectors. The serving BS broadcasts information on the serving BS and the neighbor BS to the MS, determines if the MS can perform a soft handover from its current sector to another sector upon receiving the handover request from the MS, and permits the MS to perform the soft handover if possible.

    摘要翻译： 提供了一种用于支持BWA通信系统中的切换的方法。 该系统包括MS，服务BS和多个相邻BS。 每个BS的覆盖区域被分成使用不同子载波频带的扇区。 MS从服务BS和相邻BS收到从服务BS广播的信息，根据收集到的信息测量服务BS和相邻BS的每个扇区的信号电平，并根据所测量的信息发送切换请求 每个扇区的信号电平。 服务BS在服务BS和相邻BS向MS广播信息，从MS接收到切换请求时，确定MS是否可以从其当前扇区执行软切换，并允许MS执行软 尽可能切换。

    Handover system and method for minimizing service delay due to pingpong effect in a broadband wireless access communication system
    6.
    发明授权
    Handover system and method for minimizing service delay due to pingpong effect in a broadband wireless access communication system 有权
    用于在宽带无线接入通信系统中由于乒乓效应而使服务延迟最小化的切换系统和方法

    公开(公告)号：US07480509B2

    公开(公告)日：2009-01-20

    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： 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将更改其连接的通知。 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。

    System and method for handover to minimize service delay due to ping pong effect in BWA communication system
    7.
    发明申请
    System and method for handover to minimize service delay due to ping pong effect in BWA communication system 有权
    用于切换的系统和方法，以便在BWA通信系统中由于乒乓效应而使服务延迟最小化

    公开(公告)号：US20070249355A1

    公开(公告)日：2007-10-25

    申请号：US11728582

    申请日：2007-03-26

    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： H04W36/30 ,  H04W36/245

    摘要： Disclosed is a method for recognizing by a Mobile Subscriber Station (MSS) whether a serving Base Station (BS) retains connection information in a mobile communication system including the serving BS for providing a service to the MSS and a target BS adjacent to the serving BS. The method includes the steps of receiving a handover request message from the serving BS, the handover request message including a resource remain type field representing whether the connection information having been set with the serving BS is retained, and a resource retain time field representing a connection information-retaining time by the serving BS, and recognizing that the serving BS retains the connection information during a time determined by a value of the resource retain time field.

    摘要翻译： 公开了一种用于由移动用户站（MSS）识别服务基站（BS）是否在包括用于向MSS提供服务的服务BS的移动通信系统和与服务BS相邻的目标BS保留连接信息的方法 。 该方法包括从服务BS接收切换请求消息的步骤，切换请求消息包括表示是否保留已经设置了服务BS的连接信息的资源保持类型字段，以及表示连接的资源保留时间字段 信息保留时间，并且识别服务BS在由资源保留时间字段的值确定的时间内保留连接信息。

    System and method for allocating safety channels in a broadband wireless access communication system
    8.
    发明申请
    System and method for allocating safety channels in a broadband wireless access communication system 审中-公开
    在宽带无线接入通信系统中分配安全信道的系统和方法

    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。