公开(公告)号：US08391150B2

公开(公告)日：2013-03-05

申请号：US12823493

申请日：2010-06-25

申请人： Tae Chul Hong

发明人： Tae Chul Hong

IPC分类号： H04J1/16

CPC分类号： H04W28/0278 ,  H04W8/22 ,  H04W8/24 ,  H04W72/1252

摘要： In a satellite communication system having a long round-trip delay time, a user terminal reports initial buffer status information when the communication between the satellite and the use terminal started. When a trigger, a timer or padding requiring buffer status information report is generated, the user terminal checks whether there are data to be re-transmitted due to transmission failure from the previous BSR. When transmission-failed data exists, the user terminal sets buffer status amount, which is reported through BSR, as a value that is obtained by adding the amount of transmission-failed data to the amount of newly added after previous report. When there are no transmission-failed data, the user terminal reports BSR which is set as the amount of newly added data to the buffer after previous report. For discriminating entire buffer status reporting and the increased amount of data reporting, the reserved index of a header file is used.

摘要翻译： 在具有长的往返延迟时间的卫星通信系统中，当卫星和使用终端之间的通信启动时，用户终端报告初始缓冲器状态信息。 当产生触发器，需要缓冲器状态信息报告的定时器或填充时，用户终端检查是否存在由于先前BSR的传输失败而被重传的数据。 当传输失败的数据存在时，用户终端将通过BSR报告的缓冲区状态量设置为通过将传输失败数据量加到先前报告后新添加的数量而获得的值。 当没有传输失败的数据时，用户终端报告在先前报告之后被设置为缓冲器的新添加数据量的BSR。 为了区分整个缓冲区状态报告和增加的数据报告量，使用头文件的保留索引。

公开(公告)号：US20120093014A1

公开(公告)日：2012-04-19

申请号：US13275970

申请日：2011-10-18

申请人： Tae Chul Hong ,  Hee Wook Kim ,  Seung Hyun Nam ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn ,  Sung Moon Yeo ,  Soo Young Kim

发明人： Tae Chul Hong ,  Hee Wook Kim ,  Seung Hyun Nam ,  Kun Seok Kang ,  Bon Jun Ku ,  Do Seob Ahn ,  Sung Moon Yeo ,  Soo Young Kim

IPC分类号： H04L12/26

CPC分类号： H04L1/0071 ,  H03M13/2732 ,  H03M13/6508 ,  H03M13/6525 ,  H04L1/0033 ,  H04L1/0041

摘要： A communication method and apparatus using a symbol interleaver in a long term evolution (LTE)-based satellite communication system are provided. The communication method may include determining whether to use an interleaver based on service information, and interleaving the data using the symbol interleaver designed based on interleaver information. Also, the communication method may include generating random data using a timer and interleaving the random data.

摘要翻译： 提供了一种在基于长期演进（LTE）的卫星通信系统中使用符号交织器的通信方法和装置。 通信方法可以包括基于服务信息确定是否使用交织器，以及使用基于交织器信息设计的符号交织器来交织数据。 此外，通信方法可以包括使用定时器生成随机数据并交织随机数据。

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。

公开(公告)号：US20110143752A1

公开(公告)日：2011-06-16

申请号：US12829888

申请日：2010-07-02

申请人： Tae Chul HONG

发明人： Tae Chul HONG

IPC分类号： H04W40/00 ,  H04W36/00

CPC分类号： H04W48/18 ,  H04W24/10

摘要： Provided are a mobile communication system and a cell reselection method of a mobile communication terminal. The mobile communication system includes two or more communication systems using different transmission modes and a mobile communication terminal connectable to the two or more communication systems. The mobile communication terminal measures received signal strength of a satellite communication cell when being switched to an idle mode, divides priority of a satellite communication system using the measured received signal strength and location information of the mobile communication terminal, and sets a first threshold value necessary for cell reselection of the satellite communication system.

摘要翻译： 提供了移动通信终端的移动通信系统和小区重选方法。 移动通信系统包括使用不同传输模式的两个或多个通信系统和可连接到两个或更多个通信系统的移动通信终端。 移动通信终端当切换到空闲模式时测量卫星通信小区的接收信号强度，使用测量的接收信号强度和移动通信终端的位置信息来划分卫星通信系统的优先级，并设置必要的第一阈值 用于小区重新选择卫星通信系统。

公开(公告)号：US20110064017A1

公开(公告)日：2011-03-17

申请号：US12878367

申请日：2010-09-09

申请人： Tae Chul HONG

发明人： Tae Chul HONG

IPC分类号： H04H20/71

CPC分类号： H04H20/26 ,  H04H20/423 ,  H04H20/72 ,  H04H20/74

摘要： Disclosed is a resource allocation method for an MBMS in an integrated communication system including a satellite communication system, in which a multicast service being provided by the terrestrial communication system is switched to the satellite communication system and the terrestrial communication system stops providing the same multicast service when the number of cells of the terrestrial communication system providing the same multicast service is equal to or larger than a predetermined threshold value and there is a channel available for an additional multicast service in the satellite communication system.

摘要翻译： 公开了一种包括卫星通信系统的集成通信系统中的MBMS的资源分配方法，其中由地面通信系统提供的组播业务切换到卫星通信系统，并且地面通信系统停止提供相同的多播服务 当提供相同多播服务的地面通信系统的小区的数量等于或大于预定阈值时，并且在卫星通信系统中存在可用于附加多播服务的信道。

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。

公开(公告)号：US08291276B2

公开(公告)日：2012-10-16

申请号：US12558793

申请日：2009-09-14

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： G08C25/02 ,  H04L1/08

CPC分类号： H04L1/187 ,  H04L1/1874

摘要： Disclosed is an interaction method between an automatic repeat request (ARQ) and a hybrid automatic repeat request (HARQ) in a system having a long roundtrip delay. A transmission window for the ARQ is operated using inner feedback information from the HARQ, and a waiting window is operated using ARQ status information.

摘要翻译： 公开了具有长往返延迟的系统中的自动重发请求（ARQ）和混合自动重传请求（HARQ）之间的交互方法。 使用来自HARQ的内部反馈信息来操作用于ARQ的传输窗口，并且使用ARQ状态信息来操作等待窗口。

公开(公告)号：US20100182924A1

公开(公告)日：2010-07-22

申请号：US12667433

申请日：2008-05-08

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

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

IPC分类号： H04W24/00 ,  H04H20/71

CPC分类号： H04B7/18591 ,  H04W72/005

摘要： The present invention is directed to a method of changing a transmission mode, a method of requesting a packet retransmission, and a method of retransmitting a packet with respect to a broadcasting or multicast service. According to the invention, a plurality of terminals provided with one broadcasting or multicast service shares one random access channel (RACH) so as to transmit channel information. Accordingly, a base station receives the channel information through one RACH from the terminal or detects a packet collision generated in the RACH to confirm a request for changing the transmission mode or a request for maintaining the transmission mode by the terminal.

摘要翻译： 本发明涉及一种改变传输模式的方法，一种请求分组重传的方法，以及一种关于广播或组播业务重传分组的方法。 根据本发明，具有一个广播或多播服务的多个终端共享一个随机接入信道（RACH），以便发送信道信息。 因此，基站从终端通过一个RACH接收信道信息，或者检测在RACH中产生的分组冲突，以确认终端改变发送模式的请求或维持发送模式的请求。

公开(公告)号：US20100050035A1

公开(公告)日：2010-02-25

申请号：US12441277

申请日：2007-09-13

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

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

IPC分类号： H04L1/08 ,  G06F11/14

CPC分类号： H04L1/1819 ,  H04L1/1809

摘要： Provided is a method for preventing consecutive packet errors in a transmitter by combining a hybrid automatic repeat request (HARQ) type II with a selective automatic repeat request (ARQ), including: transmitting a data packet from the transmitter to a receiver; when a negative acknowledgement (NACK) packet corresponding to the data packet is received from the receiver, checking stored information in the NACK packet wherein the stored information represent whether or not the data packet is stored in a buffer; when the data packet is stored in the buffer, transmitting a packet having parity bits to the receiver and storing the data packet in a retransmission queue; and when the data packet is not stored in the buffer, re-transmitting the data packet and maintaining the data packet stored in a transmission queue.

摘要翻译： 提供了一种通过将II型混合自动重复请求（HARQ）与选择性自动重传请求（ARQ）组合来防止发射机中的连续分组错误的方法，包括：将数据分组从发射机发射到接收机; 当从接收器接收到对应于数据分组的否定确认（NACK）分组时，检查NACK分组中存储的信息，其中所存储的信息表示数据分组是否存储在缓冲器中; 当数据分组存储在缓冲器中时，向接收机发送具有奇偶校验位的分组，并将数据分组存储在重传队列中; 并且当数据分组未存储在缓冲器中时，重新发送数据分组并维护存储在传输队列中的数据分组。

公开(公告)号：US20100015972A1

公开(公告)日：2010-01-21

申请号：US12445559

申请日：2007-10-17

申请人： Tae Chul Hong ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

发明人： Tae Chul Hong ,  Kun Seok Kang ,  Do Seob Ahn ,  Ho Jin Lee

IPC分类号： H04W40/00 ,  H04W36/00

CPC分类号： H04B7/18563 ,  H04W36/30 ,  H04W84/06 ,  Y02D70/142 ,  Y02D70/446

摘要： Provided are a method and mobile communication terminal for handover in a mobile communication network including at least one mobile communication base station and a communication satellite. The handover method includes the steps of: (a) calculating a signal power received from a currently communicating mobile communication base station among the at least one mobile communication base station; (b) calculating a signal power received from each of the communication satellite and the at least one mobile communication base station except the base station of step (a); (c) selecting a mobile communication base station having the highest among the calculated signal powers except the signal power received from the communication satellite and the signal power received from the base station of step (a); and (d) when the signal power calculated in step (a) is below a predetermined minimum handover power, a difference between the signal power of the selected mobile communication base station and the signal power calculated in step (a) is equal to or below a first terrestrial handover sensitivity, and there is no other mobile communication base station capable of communicating with the mobile communication terminal, performing handover to the communication satellite.

摘要翻译： 提供了一种用于在包括至少一个移动通信基站和通信卫星的移动通信网络中切换的方法和移动通信终端。 切换方法包括以下步骤：（a）计算在所述至少一个移动通信基站中从当前通信的移动通信基站接收的信号功率; （b）计算从所述通信卫星和除所述步骤（a）的基站之外的所述至少一个移动通信基站中的每一个接收的信号功率; （c）选择除了从通信卫星接收到的信号功率和从步骤（a）的基站接收的信号功率之外的计算的信号功率中具有最高的移动通信基站; 和（d）当在步骤（a）中计算的信号功率低于预定的最小切换功率时，所选择的移动通信基站的信号功率与在步骤（a）中计算的信号功率之间的差等于或低于 第一地面切换灵敏度，并且没有能够与移动通信终端通信的其他移动通信基站，执行到通信卫星的切换。