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    Hierarchical random acces method for wireless communication system having significantly large cell
    1.
    发明授权
    Hierarchical random acces method for wireless communication system having significantly large cell 有权
    无线通信系统的分层随机访问方法具有明显的单元格

    公开(公告)号：US08385311B2

    公开(公告)日：2013-02-26

    申请号：US12548790

    申请日：2009-08-27

    申请人： Tae Chul Hong ,  Hee Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    发明人： Tae Chul Hong ,  Hee Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    IPC分类号： H04W24/02

    CPC分类号： H04B7/2656 ,  H04W74/002

    摘要： Disclosed is a hierarchical random access method for a wireless communication system having a significantly large cell. According to the present invention, a length of a preamble sequence and a length of a reference slot may be designed based on a terminal having greatest capacity of adjusting a timing error arrived at a base station, and a slot length may be designed to be an integer multiple of the length of the reference slot depending on a timing error correction capacity, thereby enabling terminals to use various slot lengths.

    摘要翻译： 公开了一种具有明显大的单元的无线通信系统的分层随机接入方法。 根据本发明，可以基于具有最大容量调整到达基站的定时误差的终端来设计前导序列的长度和参考时隙的长度，并且时隙长度可以被设计为 取决于定时纠错能力的参考时隙的长度的整数倍，从而使终端能够使用各种时隙长度。

    POWER CONTROLLED ADAPTIVE MODULATION AND CODING SCHEME IN SATELLITE COMMUNICATIONS SYSTEM
    2.
    发明申请
    POWER CONTROLLED ADAPTIVE MODULATION AND CODING SCHEME IN SATELLITE COMMUNICATIONS SYSTEM 失效
    卫星通信系统的功率自适应调制和编码方案

    公开(公告)号：US20110149836A1

    公开(公告)日：2011-06-23

    申请号：US12943182

    申请日：2010-11-10

    申请人： Tae-Chul HONG ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    发明人： Tae-Chul HONG ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    IPC分类号： H04B7/185 ,  H04W52/04

    CPC分类号： H04B7/18543 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0028 ,  H04W52/262 ,  H04W52/58

    摘要： A power controlled adaptive modulation and coding (AMC) scheme in a satellite communications system includes: calculating, by a user terminal, a received signal-to-noise ratio (SNR) through a packet received from a base station; removing a power control level applied to a packet received before the received packet from the calculated received SNR, and deciding the value obtained by decreasing the calculated received SNR by the power control level; deciding an AMC mode based on the decided received SNR; determining whether power control is required, and deciding a required power control magnitude depending on a channel state positioned in the AMC mode range; transmitting the decided AMC mode and the decided power control information to the base station through channel quality indicator (CQI) feedback; and applying the AMC mode based on information received, and increasing a power by a power control magnitude decided from the received information.

    摘要翻译： 卫星通信系统中的功率控制自适应调制和编码（AMC）方案包括：由用户终端通过从基站接收到的分组来计算接收信噪比（SNR）; 从所计算的接收到的SNR中去除应用于在接收到的分组之前接收到的分组的功率控制电平，以及通过将所计算的接收SNR减小所获得的值来确定功率控制电平; 基于所确定的接收到的SNR来决定AMC模式; 确定是否需要功率控制，以及根据位于AMC模式范围内的信道状态来确定所需的功率控制幅度; 通过信道质量指示符（CQI）反馈将决定的AMC模式和决定的功率控制信息发送到基站; 以及基于所接收的信息应用AMC模式，并且通过从所接收的信息确定的功率控制量来增加功率。

    Power controlled adaptive modulation and coding scheme in satellite communications system
    3.
    发明授权
    Power controlled adaptive modulation and coding scheme in satellite communications system 失效
    卫星通信系统中的功率控制自适应调制和编码方案

    公开(公告)号：US08411615B2

    公开(公告)日：2013-04-02

    申请号：US12943182

    申请日：2010-11-10

    申请人： Tae-Chul Hong ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    发明人： Tae-Chul Hong ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18543 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0021 ,  H04L1/0026 ,  H04L1/0028 ,  H04W52/262 ,  H04W52/58

    摘要： A power controlled adaptive modulation and coding (AMC) scheme in a satellite communications system includes: calculating, by a user terminal, a received signal-to-noise ratio (SNR) through a packet received from a base station; removing a power control level applied to a packet received before the received packet from the calculated received SNR, and deciding the value obtained by decreasing the calculated received SNR by the power control level; deciding an AMC mode based on the decided received SNR; determining whether power control is required, and deciding a required power control magnitude depending on a channel state positioned in the AMC mode range; transmitting the decided AMC mode and the decided power control information to the base station through channel quality indicator (CQI) feedback; and applying the AMC mode based on information received, and increasing a power by a power control magnitude decided from the received information.

    摘要翻译： 卫星通信系统中的功率控制自适应调制和编码（AMC）方案包括：由用户终端通过从基站接收的分组来计算接收信噪比（SNR）; 从所计算的接收到的SNR中去除应用于在接收到的分组之前接收到的分组的功率控制电平，以及通过将所计算的接收SNR减小所获得的值来确定功率控制电平; 基于所确定的接收到的SNR来决定AMC模式; 确定是否需要功率控制，以及根据位于AMC模式范围内的信道状态来确定所需的功率控制幅度; 通过信道质量指示符（CQI）反馈将决定的AMC模式和决定的功率控制信息发送到基站; 以及基于所接收的信息应用AMC模式，并且通过从所接收的信息确定的功率控制量来增加功率。

    SERVICE PROVIDING SYSTEM AND METHOD IN SATELLITE COMMUNICATION SYSTEM
    5.
    发明申请
    SERVICE PROVIDING SYSTEM AND METHOD IN SATELLITE COMMUNICATION SYSTEM 审中-公开
    卫星通信系统中的服务提供系统和方法

    公开(公告)号：US20110053628A1

    公开(公告)日：2011-03-03

    申请号：US12869186

    申请日：2010-08-26

    申请人： Hee-Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    发明人： Hee-Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho-Jin Lee

    IPC分类号： H04B7/00

    CPC分类号： H04B7/18539 ,  H04B7/2041

    摘要： A service providing method in a satellite communication system includes: confirming positions of terminals when the terminals existing within a service area and intended to receive a service is connected to a satellite base station or a complementary terrestrial component; confirming first terminals, which communicate with the satellite base station, and second terminals, which communicate with the complementary terrestrial component, according to the positions of the terminals; allocating resources usable when communicating with the first terminals and resources usable when communicating with the second terminals; and providing a service to the terminals by using the allocated resources through multi-beams of the satellite base station and multi-beams of the complementary terrestrial component.

    摘要翻译： 卫星通信系统中的服务提供方法包括：当存在于业务区域内并且要接收业务的终端连接到卫星基站或互补地面组件时，确认终端的位置; 确定与卫星基站通信的第一终端，以及根据终端的位置与互补地面组件通信的第二终端; 分配与第一终端通信时可用的资源和与第二终端通信时可用的资源; 以及通过使用经由分配的资源通过卫星基站的多波束和互补地面分量的多波束向终端提供服务。

    Method of establishing uplink in mobile satellite communication system
    8.
    发明授权
    Method of establishing uplink in mobile satellite communication system 有权
    移动卫星通信系统建立上行链路的方法

    公开(公告)号：US08514770B2

    公开(公告)日：2013-08-20

    申请号：US12612311

    申请日：2009-11-04

    申请人： Hee Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    发明人： Hee Wook Kim ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18589 ,  H04B7/18545

    摘要： Provided is a method of establishing an uplink in a mobile satellite communication system, the method including: receiving a random uplink access signal from terminals included in a coverage of a satellite beam; estimating a location of each of the terminals; calculating an uplink transmission point in time when each of the terminals transmits an uplink signal, based on the estimated location of each of the terminals; transmitting, to each of the terminals, the calculated uplink transmission point in time; and receiving the uplink signal from each of the terminals at the calculated uplink transmission point in time.

    摘要翻译： 提供了一种在移动卫星通信系统中建立上行链路的方法，所述方法包括：从包括在卫星波束覆盖范围内的终端接收随机上行接入信号; 估计每个终端的位置; 基于每个终端的估计位置，计算每个终端发送上行链路信号的时间上行链路传输点; 向每个终端发送所计算的上行链路传输点; 并且在所计算的上行链路传输点处接收来自每个终端的上行链路信号。

    METHOD OF ESTABLISHING UPLINK IN MOBILE SATELLITE COMMUNICATION SYSTEM
    10.
    发明申请
    METHOD OF ESTABLISHING UPLINK IN MOBILE SATELLITE COMMUNICATION SYSTEM 有权
    在移动卫星通信系统中建立UPLINK的方法

    公开(公告)号：US20100157880A1

    公开(公告)日：2010-06-24

    申请号：US12612311

    申请日：2009-11-04

    申请人： Hee Wook KIM ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    发明人： Hee Wook KIM ,  Kunseok Kang ,  Do-Seob Ahn ,  Ho Jin Lee

    IPC分类号： H04B7/185

    CPC分类号： H04B7/18589 ,  H04B7/18545

    摘要： Provided is a method of establishing an uplink in a mobile satellite communication system, the method including: receiving a random uplink access signal from terminals included in a coverage of a satellite beam; estimating a location of each of the terminals; calculating an uplink transmission point in time when each of the terminals transmits an uplink signal, based on the estimated location of each of the terminals; transmitting, to each of the terminals, the calculated uplink transmission point in time; and receiving the uplink signal from each of the terminals at the calculated uplink transmission point in time.

    摘要翻译： 提供了一种在移动卫星通信系统中建立上行链路的方法，所述方法包括：从包括在卫星波束覆盖范围内的终端接收随机上行接入信号; 估计每个终端的位置; 基于每个终端的估计位置，计算每个终端发送上行链路信号的时间上行链路传输点; 向每个终端发送所计算的上行链路传输点; 并且在所计算的上行链路传输点处接收来自每个终端的上行链路信号。