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    Handoff system and method in communication system with smart antenna
    1.
    发明申请
    Handoff system and method in communication system with smart antenna 审中-公开
    具有智能天线的通信系统中的切换系统和方法

    公开(公告)号：US20070077928A1

    公开(公告)日：2007-04-05

    申请号：US11524710

    申请日：2006-09-21

    申请人： Jong-In Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    发明人： Jong-In Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    IPC分类号： H04Q7/20

    CPC分类号： H04W36/30

    摘要： Disclosed are a handoff system and a handoff method in a communication system with a smart antenna. In a method for performing handoff in a communication system including BSs which have different antenna structures, neighbor BS information including antennas structure information of neighbor BSs is received from a serving BS, a handoff threshold value is set according to the received neighbor BS information, and a difference between pilot strengths of the neighbor BSs and that of the serving BS is compared with the set handoff threshold value to thereby determine whether to perform the handoff.

    摘要翻译： 公开了具有智能天线的通信系统中的切换系统和切换方法。 在包括具有不同天线结构的BS的通信系统中执行切换的方法中，从服务BS接收到包括相邻BS的天线结构信息的相邻BS信息，根据所接收到的相邻BS信息设置越区切换阈值， 将相邻BS的导频强度与服务BS的导频强度之间的差与设置的切换阈值进行比较，从而确定是否执行切换。

    Apparatus and method for adaptively changing uplink power control scheme according to mobile status in a TDD mobile communication system
    2.
    发明授权
    Apparatus and method for adaptively changing uplink power control scheme according to mobile status in a TDD mobile communication system 有权
    根据TDD移动通信系统中的移动状态自适应地改变上行链路功率控制方案的装置和方法

    公开(公告)号：US07558535B2

    公开(公告)日：2009-07-07

    申请号：US11207396

    申请日：2005-08-19

    申请人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

    发明人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

    IPC分类号： H04B7/00

    CPC分类号： H04W52/28 ,  H04W52/08 ,  H04W52/10

    摘要： An apparatus and method for changing an uplink power control scheme according to mobile status in a TDD mobile communication system are provided. A subscriber station transmits to a base station a power control change request message including information about a requested power control scheme. Upon receipt of the power control change request message, the base station selects a power control scheme for the uplink of the subscriber station and transmits to the subscriber station a power control change command message including information about the selected power control scheme. The subscriber station extracts, upon receipt of the power control change command message from the base station, the power control scheme information from the power control change command message and selects a power control scheme according to the extracted information.

    摘要翻译： 提供了一种用于在TDD移动通信系统中根据移动状态改变上行链路功率控制方案的装置和方法。 用户站向基站发送包括关于所请求的功率控制方案的信息的功率控制改变请求消息。 在接收到功率控制改变请求消息时，基站选择用户站的上行链路的功率控制方案，并向用户台发送包括关于所选择的功率控制方案的信息的功率控制改变命令消息。 用户站在从基站接收到功率控制改变命令消息后，从功率控制改变命令消息中提取功率控制方案信息，并根据所提取的信息选择功率控制方案。

    Apparatus and method for improving reception performance in a smart antenna system
    5.
    发明申请
    Apparatus and method for improving reception performance in a smart antenna system 有权
    用于改善智能天线系统中的接收性能的装置和方法

    公开(公告)号：US20070099665A1

    公开(公告)日：2007-05-03

    申请号：US11545240

    申请日：2006-10-10

    申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    IPC分类号： H04B1/38

    CPC分类号： H04B1/1027

    摘要： An apparatus and method for improving the reception performance of a Mobile Station (MS) in a multiple antenna system are provided. In an apparatus of a Base Station (BS) in the multiple antenna system, upon receipt of a request for interference cancellation for a first MS serviced by a neighbor BS, a channel estimator estimates a channel from the first MS and a channel from a second MS serviced by the BS. A beam coefficient generator generates a first beam coefficient based on channel estimates of the first and second MSs and a second beam coefficient based on the channel estimate of the second MS. An interference cancellation decider determines whether to perform interference cancellation for the first MS using the first and second beam coefficients.

    摘要翻译： 提供了一种用于提高多天线系统中的移动站（MS）的接收性能的装置和方法。 在多天线系统中的基站（BS）的装置中，当接收到由相邻BS服务的第一MS的干扰消除请求时，信道估计器估计来自第一MS的信道和来自第二MS的信道 MS由BS服务。 波束系数发生器基于第一和第二MS的信道估计生成第一波束系数，并且基于第二MS的信道估计产生第二波束系数。 干扰消除决定器使用第一和第二波束系数来确定是否对第一MS进行干扰消除。

    Apparatus and method for improving reception performance in a smart antenna system
    6.
    发明授权
    Apparatus and method for improving reception performance in a smart antenna system 有权
    用于改善智能天线系统中的接收性能的装置和方法

    公开(公告)号：US08320306B2

    公开(公告)日：2012-11-27

    申请号：US11545240

    申请日：2006-10-10

    申请人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    发明人： Yong-Seok Kim ,  Young-Hoon Kwon ,  Soon-Young Yoon ,  Sang-Hoon Sung

    IPC分类号： H04W4/00

    CPC分类号： H04B1/1027

    摘要： An apparatus and method for improving the reception performance of a Mobile Station (MS) in a multiple antenna system are provided. In an apparatus of a Base Station (BS) in the multiple antenna system, upon receipt of a request for interference cancellation for a first MS serviced by a neighbor BS, a channel estimator estimates a channel from the first MS and a channel from a second MS serviced by the BS. A beam coefficient generator generates a first beam coefficient based on channel estimates of the first and second MSs and a second beam coefficient based on the channel estimate of the second MS. An interference cancellation decider determines whether to perform interference cancellation for the first MS using the first and second beam coefficients.

    摘要翻译： 提供了一种用于提高多天线系统中的移动站（MS）的接收性能的装置和方法。 在多天线系统中的基站（BS）的装置中，当接收到由相邻BS服务的第一MS的干扰消除请求时，信道估计器估计来自第一MS的信道和来自第二MS的信道 MS由BS服务。 波束系数发生器基于第一和第二MS的信道估计生成第一波束系数，并且基于第二MS的信道估计产生第二波束系数。 干扰消除决定器使用第一和第二波束系数来确定是否对第一MS进行干扰消除。

    APPARATUS AND METHOD FOR ASSIGNING SUBCHANNELS IN AN OFDMA COMMUNICATION SYSTEM
    9.
    发明申请
    APPARATUS AND METHOD FOR ASSIGNING SUBCHANNELS IN AN OFDMA COMMUNICATION SYSTEM 有权
    用于在OFDMA通信系统中分配子信道的装置和方法

    公开(公告)号：US20090141681A1

    公开(公告)日：2009-06-04

    申请号：US12363315

    申请日：2009-01-30

    申请人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

    发明人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

    IPC分类号： H04W72/04

    CPC分类号： H04L5/0041 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0046 ,  H04L5/0064 ,  H04L5/0083 ,  H04W16/10 ,  H04W16/14

    摘要： An apparatus and method for assigning subchannels of a transmitter in a communication system. The method includes dividing an entire frequency band into m subcarrier groups; mapping each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; determining that a first data is needed to transmit in a first timing point; and assigning a first subchannel in the first timing point using a first subcarrier group index sequence. The first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point.

    摘要翻译： 一种用于在通信系统中分配发射机的子信道的装置和方法。 该方法包括将整个频带划分为m个子载波组; 将m个子载波组中的每一个映射到子载波组索引，其中，子信道包括从子载波组索引序列对应的m个子载波组中的每一个中选择的n个子载波; 确定需要第一数据以在第一定时点发送; 以及使用第一子载波组索引序列在第一定时点分配第一子信道。 第一子载波组索引序列与用于在第二定时点中分配第二子信道的第二子载波组索引序列不同。

    Apparatus and method for selective power control for an OFDM mobile communication system
    10.
    发明申请
    Apparatus and method for selective power control for an OFDM mobile communication system 有权
    一种用于OFDM移动通信系统的选择性功率控制的装置和方法

    公开(公告)号：US20050105589A1

    公开(公告)日：2005-05-19

    申请号：US10993274

    申请日：2004-11-19

    申请人： Sang-Hoon Sung ,  Joong-Ho Jeong ,  Yun-Sang Park ,  Soon-Young Yoon ,  Jae-Hwan Chang

    发明人： Sang-Hoon Sung ,  Joong-Ho Jeong ,  Yun-Sang Park ,  Soon-Young Yoon ,  Jae-Hwan Chang

    IPC分类号： H04J11/00 ,  H04B1/69 ,  H04B7/005 ,  H04L5/02 ,  H04L27/26

    CPC分类号： H04W52/24 ,  H04L5/023 ,  H04L27/2608

    摘要： Disclosed is a method for controlling downlink power transmitted from a base station to subscriber stations in a mobile communication system employing an Orthogonal Frequency Division Multiple Access (OFDMA) scheme, in which data is carried from the base station to the subscriber stations by subchannels to each of which a plurality of subcarriers are assigned. The method includes the steps of receiving from the subscriber stations channel condition information of each of the subchannels together with information related to a subcarrier having a channel condition below a threshold from among at least one subcarrier included in each of the subchannels; calculating transmission power for each of the subchannels based on the received information; and transmitting each of the subchannels with the calculated transmission power, excluding the subcarrier having a channel condition below the threshold.

    摘要翻译： 公开了一种在使用正交频分多址（OFDMA）方式的移动通信系统中控制从基站向用户台发送的下行链路功率的方法，其中通过子信道从基站向用户台向每个 其中分配了多个子载波。 该方法包括以下步骤：从包括在每个子信道中的至少一个子载波中，从用户台接收每个子信道的信道条件信息以及与具有低于阈值的信道条件的子载波相关的信息; 基于所接收的信息计算每个子信道的传输功率; 以及除了具有低于阈值的信道条件的子载波之外，以计算的发送功率发送每个子信道。