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    Handover method and system in a broadband wireless access communication system
    1.
    发明授权
    Handover method and system in a broadband wireless access communication system 有权
    宽带无线接入通信系统中的切换方式和系统

    公开(公告)号：US07764649B2

    公开(公告)日：2010-07-27

    申请号：US11273203

    申请日：2005-11-14

    申请人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    发明人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    IPC分类号： H04W4/00

    CPC分类号： H04W72/048 ,  H04W16/10 ,  H04W36/20 ,  H04W72/0453

    摘要： Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user field to non-handover MSs located in a non-handover region, allocating at least one subchannel in the handover field to handover MSs located in a handover region, and performing communication through the allocated at least one subchannel.

    摘要翻译： 公开了一种在宽带无线接入（BWA）通信系统中使用的硬切换方法和系统。 所述方法和系统包括将移动台（MS）的数据传输区划分为切换区和普通用户区，在正常用户区中分配至少一个子信道到位于非切换区域的非切换MS，分配 切换字段中的至少一个子信道切换位于切换区域中的MS，以及通过所分配的至少一个子信道执行通信。

    Handover method and system in a broadband wireless access communication system
    2.
    发明申请
    Handover method and system in a broadband wireless access communication system 有权
    宽带无线接入通信系统中的切换方式和系统

    公开(公告)号：US20060135164A1

    公开(公告)日：2006-06-22

    申请号：US11273203

    申请日：2005-11-14

    申请人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    发明人： Jeong-Heon Kim ,  Young-Ky Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang

    IPC分类号： H04Q7/20

    CPC分类号： H04W72/048 ,  H04W16/10 ,  H04W36/20 ,  H04W72/0453

    摘要： Disclosed is a hard handover method and system for use in a Broadband Wireless Access (BWA) communication system. The method and system includes dividing a data transmission field for mobile stations (MSs) into a handover field and a normal user field, allocating at least one subchannel in the normal user field to non-handover MSs located in a non-handover region, allocating at least one subchannel in the handover field to handover MSs located in a handover region, and performing communication through the allocated at least one subchannel.

    摘要翻译： 公开了一种在宽带无线接入（BWA）通信系统中使用的硬切换方法和系统。 所述方法和系统包括将移动台（MS）的数据传输区划分为切换区和普通用户区，在正常用户区中分配至少一个子信道到位于非切换区域的非切换MS，分配 切换字段中的至少一个子信道切换位于切换区域中的MS，以及通过所分配的至少一个子信道执行通信。

    Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme
    4.
    发明授权
    Apparatus and method for transmitting a sub-channel signal in a communication system using an orthogonal frequency division multiple access scheme 有权
    使用正交频分多址方案在通信系统中发送子信道信号的装置和方法

    公开(公告)号：US07715483B2

    公开(公告)日：2010-05-11

    申请号：US11077858

    申请日：2005-03-11

    申请人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Seung-Joo Maeng

    发明人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Seung-Joo Maeng

    IPC分类号： H04L27/28

    CPC分类号： H04L5/0037 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04W16/12 ,  H04W28/16 ,  H04W74/00

    摘要： A method of allocating sub-channel signal interleaving patterns to BSs forming a wireless communication system that divides a frequency band into a plurality of sub-carriers and including a plurality of sub-channels, which are a set of predetermined adjacent sub-carriers. The method includes: creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having a same length as the basic orthogonal sequence by cyclic-shifting the basic orthogonal sequence a predetermined number of times or performing a modulo operation based on a number of the sub-carriers forming the sub-channel, after adding a predetermined offset to the cyclic-shifted basic orthogonal sequence; selecting a predetermined number of sequences corresponding to a number of the BSs from among the plurality of sequences; and allocating the selected sequences as the sub-channel signal interleaving patterns for the BSs.

    摘要翻译： 将子信道信号交织模式分配给形成无线通信系统的无线通信系统的方法，所述无线通信系统将频带划分成多个子载波，并且包括作为一组预定相邻子载波的多个子信道。 该方法包括：创建具有与形成子信道的子载波的数量相同的长度的基本正交序列; 通过将基本正交序列循环移位预定次数或者基于构成子信道的子载波的数量执行模运算来创建与基本正交序列具有相同长度的多个序列， 对循环移位的基本正交序列的预定偏移; 从所述多个序列中选择与所述BS的数量相对应的预定数量的序列; 并且将所选择的序列分配为用于BS的子信道信号交织模式。

    Apparatus and method for signal processing in a handover in a BWA communication
    5.
    发明申请
    Apparatus and method for signal processing in a handover in a BWA communication 审中-公开
    BWA通信中的切换中的信号处理装置和方法

    公开(公告)号：US20060009212A1

    公开(公告)日：2006-01-12

    申请号：US11167664

    申请日：2005-06-27

    申请人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    发明人： Jeong-Heon Kim ,  Jae-Ho Jeon ,  Seung-Joo Maeng ,  Ji-Ho Jang ,  Myung-Kwang Byun

    IPC分类号： H04Q7/20

    CPC分类号： H04B17/336

    摘要： An apparatus and method for processing received signals in a handover of a MS in a BWA communication system including a plurality of BSs capable of providing a service to the MS. According to the method, the MS receives signals of different BSs and detects preambles for each BS from the received signals. Further, the MS measures channel quality information corresponding to each of the detected preambles and compares the measured channel quality information with a preset threshold value. Further, the MS processes the signals received from the different BSs based on a result obtained by comparing the measured channel quality information with the preset threshold value.

    摘要翻译： 一种用于在包括能够向MS提供服务的多个BS的BWA通信系统中的MS的切换中处理接收信号的装置和方法。 根据该方法，MS接收不同BS的信号，并根据接收到的信号检测每个BS的前同步码。 此外，MS测量与每个检测到的前导码相对应的信道质量信息，并将测量的信道质量信息与预设阈值进行比较。 此外，MS基于通过将测量的信道质量信息与预设阈值进行比较而获得的结果来处理从不同BS接收的信号。

    UPLINK (UL) POWER CONTROL APPARATUS AND METHOD IN BROADBAND WIRELESS COMMUNICATION SYSTEM
    7.
    发明申请
    UPLINK (UL) POWER CONTROL APPARATUS AND METHOD IN BROADBAND WIRELESS COMMUNICATION SYSTEM 有权
    UPLINK（UL）功率控制装置和方法在宽带无线通信系统中

    公开(公告)号：US20100331036A1

    公开(公告)日：2010-12-30

    申请号：US12816937

    申请日：2010-06-16

    申请人： Hwa-Sun YOU ,  Ji-Ho Jang ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    发明人： Hwa-Sun YOU ,  Ji-Ho Jang ,  Jae-Ho Jeon ,  Seung-Joo Maeng

    IPC分类号： H04B7/005

    CPC分类号： H04W52/10 ,  H04W52/08 ,  H04W52/146 ,  H04W52/228

    摘要： An uplink (UL) power control apparatus and method in a broadband wireless communication system are provided. The Mobile Station (MS) includes a power controller for calculating a power compensation value using a last transmit power in a previous closed loop power control when a power control mode is changed to an open loop power control, and determining a transmit power according to the open loop power control using the power compensation value; and a transmitter for adjusting and transmitting the transmit power of a UL signal under control of the power controller.

    摘要翻译： 提供了宽带无线通信系统中的上行（UL）功率控制装置和方法。 移动站（MS）包括功率控制器，用于当功率控制模式改变为开环功率控制时，使用先前闭环功率控制中的最后发射功率来计算功率补偿值，并且根据 开环功率控制采用功率补偿值; 以及发射机，用于在功率控制器的控制下调整和发送UL信号的发射功率。

    Method and apparatus for allocating channels in an orthogonal frequency division multiple access system
    9.
    发明授权
    Method and apparatus for allocating channels in an orthogonal frequency division multiple access system 有权
    用于在正交频分多址系统中分配信道的方法和装置

    公开(公告)号：US07636571B2

    公开(公告)日：2009-12-22

    申请号：US11072181

    申请日：2005-03-04

    申请人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jeong-Tae Oh ,  Ji-Ho Jang

    发明人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jeong-Tae Oh ,  Ji-Ho Jang

    IPC分类号： H04W36/00 ,  H04W72/00 ,  H04W40/00

    CPC分类号： H04W36/0072 ,  H04L5/0062 ,  H04L5/0073 ,  H04L5/0094 ,  H04W24/00 ,  H04W28/26 ,  H04W36/18 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453

    摘要： A method for allocating a frequency to a subscriber station (SS) in handover operation in an Orthogonal Frequency Division Multiple Access (OFDMA) system. In the method, the SS checks safety channel frequencies for a target base station (BS), generates a safety channel frequency request message for requesting allocation of the checked safety channel frequencies, and transmits the safety channel frequency request message. Upon receiving the safety channel frequency request message from the SS, a serving BS allocates frequencies for a requested channel, and transmits an allocation message with the frequency allocation information to the SS. The serving BS transmits a channel allocation request message to the target BS according to the frequency allocation information. Upon receiving the channel allocation request message, the target BS allocates the safety channel frequencies to the SS.

    摘要翻译： 一种在正交频分多址（OFDMA）系统中在切换操作中向用户站（SS）分配频率的方法。 在该方法中，SS检查目标基站（BS）的安全信道频率，生成用于请求分配所检查的安全信道频率的安全信道频率请求消息，并发送安全信道频率请求消息。 在从SS接收到安全信道频率请求消息时，服务BS为所请求的信道分配频率，并向SS发送具有频率分配信息的分配消息。 服务BS根据频率分配信息向目标BS发送信道分配请求消息。 在接收到信道分配请求消息后，目标BS向SS分配安全信道频率。

    Method and apparatus for allocating channels in an orthogonal frequency division multiple access system
    10.
    发明申请
    Method and apparatus for allocating channels in an orthogonal frequency division multiple access system 有权
    用于在正交频分多址系统中分配信道的方法和装置

    公开(公告)号：US20050197132A1

    公开(公告)日：2005-09-08

    申请号：US11072181

    申请日：2005-03-04

    申请人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jeong-Tae Oh ,  Ji-Ho Jang

    发明人： Jae-Hyok Lee ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jeong-Tae Oh ,  Ji-Ho Jang

    IPC分类号： H04B7/26 ,  H04Q7/20

    CPC分类号： H04W36/0072 ,  H04L5/0062 ,  H04L5/0073 ,  H04L5/0094 ,  H04W24/00 ,  H04W28/26 ,  H04W36/18 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0453

    摘要： A method for allocating a frequency to a subscriber station (SS) in handover operation in an Orthogonal Frequency Division Multiple Access (OFDMA) system. In the method, the SS checks safety channel frequencies for a target base station (BS), generates a safety channel frequency request message for requesting allocation of the checked safety channel frequencies, and transmits the safety channel frequency request message. Upon receiving the safety channel frequency request message from the SS, a serving BS allocates frequencies for a requested channel, and transmits an allocation message with the frequency allocation information to the SS. The serving BS transmits a channel allocation request message to the target BS according to the frequency allocation information. Upon receiving the channel allocation request message, the target BS allocates the safety channel frequencies to the SS.

    摘要翻译： 一种在正交频分多址（OFDMA）系统中在切换操作中向用户站（SS）分配频率的方法。 在该方法中，SS检查目标基站（BS）的安全信道频率，生成用于请求分配所检查的安全信道频率的安全信道频率请求消息，并发送安全信道频率请求消息。 在从SS接收到安全信道频率请求消息时，服务BS为所请求的信道分配频率，并向SS发送具有频率分配信息的分配消息。 服务BS根据频率分配信息向目标BS发送信道分配请求消息。 在接收到信道分配请求消息后，目标BS向SS分配安全信道频率。