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21. 发明申请

US20080279142A1 Method for Adaptive Transmit Power Allocation in Multiuser Ofdm System 审中-公开
标题翻译：多用户系统中自适应发射功率分配的方法
公开(公告)号：US20080279142A1
公开(公告)日：2008-11-13
申请号：US12096205
申请日：2006-11-09
申请人： Byoung-Gi Kim , Kun-Seok Kang , Do-Seob Ahn , Ho-Jin Lee
发明人： Byoung-Gi Kim , Kun-Seok Kang , Do-Seob Ahn , Ho-Jin Lee
IPC分类号： H04Q7/20
CPC分类号： H04W52/42
摘要： Provided is a method for adaptive transmit power allocation in a multiuser OFDM system. The method includes: a) obtaining a channel gain for a predetermined bit period for each user at a predetermined time, and allocating all of available sub carriers to a user farthest separated among a plurality of users having a good channel gain; b) comparing a channel gain of the user allocated with the subcarrier at the step a) with an initial threshold value; c) allocating a transmit power uniformly to each of the sub carries allocated at the step a) using an Equal-power allocation algorithm if the channel gain is larger than the initial threshold value at the step b); and d) allocating a transmit power to each of the sub carriers allocated at the step a) using a water-filling power allocation algorithm if the channel gain is smaller than the initial threshold value at the step b).
摘要翻译：提供了一种用于多用户OFDM系统中的自适应发射功率分配的方法。该方法包括：a）在预定时间内为每个用户获得预定比特周期的信道增益，并将所有可用子载波分配给具有良好信道增益的多个用户中最远分离的用户; b）将步骤a）中分配有子载波的用户的信道增益与初始阈值进行比较; c）如果在步骤b）中信道增益大于初始阈值，则使用等功率分配算法，在步骤a）中分配的每个子载波均匀地分配发射功率; 以及d）如果在步骤b）中信道增益小于初始阈值，则使用灌水功率分配算法，在步骤a）中分配的每个子载波分配发送功率。

22. 发明授权

US07352689B2 Method for optimizing phase factor of sub-block signal in partial transmit sequence orthogonal frequency division multiplexing system 失效
标题翻译：用于优化部分发射序列正交频分复用系统中子块信号相位因子的方法
公开(公告)号：US07352689B2
公开(公告)日：2008-04-01
申请号：US10298086
申请日：2002-11-15
申请人： Kun Seok Kang , Kwonhue Chol , Soo Young Kim , Ho Jin Lee
发明人： Kun Seok Kang , Kwonhue Chol , Soo Young Kim , Ho Jin Lee
IPC分类号： H04J11/00 , H04J3/06
CPC分类号： H04L27/2621
摘要： A method for optimizing phase factors in partial transmit sequence orthogonal frequency division multiplexing system. The method includes initializing sub-block signals by applying an initial phase factor to the sub-block signals in all sub-blocks; setting a reference peak value with a peak value of a signal formed by combining the sub-block signals; selecting a phase value that minimizes the peak value of an output signal as the phase factor of each sub-block by applying a next phase value to each sub-block signal as the phase factor, and repeating this with respect to the remaining available phase values.
摘要翻译：一种用于优化部分发射序列正交频分复用系统中的相位因子的方法。该方法包括通过对所有子块中的子块信号应用初始相位因子来初始化子块信号; 通过组合子块信号形成的信号的峰值来设置参考峰值; 通过对每个子块信号施加下一相位值作为相位因子，选择使输出信号的峰值最小化的相位值作为每个子块的相位因子，并且相对于剩余的可用相位值重复该相位值。

23. 发明申请

US20130215861A1 RANDOM ACCESS METHOD 审中-公开
标题翻译：随机访问方法
公开(公告)号：US20130215861A1
公开(公告)日：2013-08-22
申请号：US13881436
申请日：2011-10-27
申请人： Seung Hyun Nam , Hee Wook Kim , Tae Chul Hong , Kun Seok Kang , Bon Jun Ku , Do Seob Ahn
发明人： Seung Hyun Nam , Hee Wook Kim , Tae Chul Hong , Kun Seok Kang , Bon Jun Ku , Do Seob Ahn
IPC分类号： H04W74/08
CPC分类号： H04W74/0833 , H04W56/0005 , H04W56/0085
摘要： According to the present invention, a random access method between a terminal and a base station comprises: a system information transmission step in which the base station transmits, to the terminal, system information including route values sequentially selected from among a set of routes; a random access preamble transmission step in which the terminal generates a random access preamble on the basis of the system information and transmits the generated random access preamble to the base station; a period setup step in which the base station sets a period available for an arrival of the random access preamble; and a random access preamble detection step in which the base station detects the random access preamble in said available period.
摘要翻译：根据本发明，终端和基站之间的随机接入方法包括：系统信息发送步骤，其中基站向终端发送包括从一组路由中顺序选择的路由值的系统信息; 随机接入前导码发送步骤，其中所述终端基于所述系统信息生成随机接入前导，并将所生成的随机接入前导码发送到所述基站; 周期设置步骤，其中所述基站设置可用于所述随机接入前同步码的到达的时段; 以及随机接入前导码检测步骤，其中所述基站在所述可用时段中检测所述随机接入前导码。

24. 发明授权

US08396411B2 Communication method in mobile communication system 有权
标题翻译：移动通信系统中的通信方式
公开(公告)号：US08396411B2
公开(公告)日：2013-03-12
申请号：US12744840
申请日：2008-08-04
申请人： Hee Wook Kim , Kun Seok Kang , Do-Seob Ahn , Ho Jin Lee
发明人： Hee Wook Kim , Kun Seok Kang , Do-Seob Ahn , Ho Jin Lee
IPC分类号： H04W4/20 , H04H20/71
CPC分类号： H04L5/14 , H04H20/08 , H04H20/72 , H04H20/74 , H04W72/04
摘要： The present invention relates to a communication method in a mobile communication system. An exemplary embodiment of the present invention provides a mobile satellite communication system having a complementary terrestrial component among various mobile communication systems. The mobile satellite communication system can simultaneously provide a communication service and a broadcasting service to a terminal according to integration between communication and broadcasting. Different signal transmission methods are used between the complementary terrestrial component and a satellite. Specifically, a time division duplex method and a frequency division duplex method are used together and resources are allocated. As a result, system throughput can be increased, and local broadcasting contents can be effectively transmitted to the terminal.
摘要翻译：本发明涉及移动通信系统中的通信方法。本发明的示例性实施例提供了一种在各种移动通信系统中具有互补地面分量的移动卫星通信系统。根据通信和广播之间的整合，移动卫星通信系统可以同时向终端提供通信服务和广播业务。互补地面部件与卫星之间采用不同的信号传输方式。具体地说，分时双工方式和频分双工方式一起使用，分配资源。结果，可以提高系统吞吐量，并且本地广播内容可以有效地传送到终端。

25. 发明授权

US08089937B2 Method and apparatus for handover in mobile communication network including satellite network 有权
标题翻译：包括卫星网络在内的移动通信网络切换的方法和装置
公开(公告)号：US08089937B2
公开(公告)日：2012-01-03
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： H04W4/00 , H04Q7/22
CPC分类号： H04B7/18563 , H04W36/30 , H04W84/06 , Y02D70/142 , Y02D70/446
摘要： 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：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）计算从每个通信卫星接收的信号功率和除了步骤（a）的基站之外的至少一个移动通信基站，（c）选择除了从通信卫星接收到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从步骤（a）的基站和（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）等于或低于第一地面切换灵敏度，并且没有能够与其通信的其他移动通信基站移动通信终端，执行到通信卫星的切换。

26. 发明申请

US20090241005A1 METHOD FOR PACKET SCHEDULING IN SELECTIVE HYBRID ARQ 审中-公开
标题翻译：选择性混合ARQ中分组调度的方法
公开(公告)号：US20090241005A1
公开(公告)日：2009-09-24
申请号：US12442020
申请日：2007-09-21
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： H04L1/18 , G06F11/14
CPC分类号： H04L1/1887 , H04L1/1819 , H04L1/1835
摘要： There is provided a method for packet scheduling in a selective hybrid automatic repeat request (HARQ) including the steps of: increasing a priority of a receiver buffer after a packet is transmitted to the receiver; receiving a feedback packet for the transmitted packet and determining whether the feedback packet is an ACK packet or a NACK packet; lowering the priority of the receiver buffer if the feedback packet is an ACK packet; determining whether the feedback packet is a NACK packet for initial transmission or the feedback packet is a NACK packet for retransmission if the feedback packet is the NACK packet, increasing the priority of the receiver buffer if the feedback packet is the NACK packet for the initial transmission, and lowering the priority of the receiver buffer if the feedback packet is the NACK packet for retransmission; and scheduling packets after calculating a priority of each receiver buffer by performing the priority increasing step to the determining step for all of receivers.
摘要翻译：提供了一种用于选择性混合自动重复请求（HARQ）中的分组调度的方法，包括以下步骤：在分组被发送到接收机之后增加接收机缓冲器的优先级; 接收所发送的分组的反馈分组，并确定反馈分组是ACK分组还是NACK分组; 如果反馈分组是ACK分组，则降低接收机缓冲器的优先级; 确定反馈分组是否是用于初始传输的NACK分组，或者如果反馈分组是NACK分组，则反馈分组是用于重传的NACK分组，如果反馈分组是用于初始传输的NACK分组，则增加接收机缓冲器的优先级并且如果反馈分组是用于重发的NACK分组，则降低接收机缓冲器的优先级; 以及通过对所有接收机执行到确定步骤的优先级增加步骤来计算每个接收器缓冲器的优先级之后调度分组。

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