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1. 发明授权

US08588248B2 Packet routing apparatus and method 有权
标题翻译：分组路由设备和方法
公开(公告)号：US08588248B2
公开(公告)日：2013-11-19
申请号：US13152087
申请日：2011-06-02
申请人： Tae Rim Park , Tae Seok Kim , Jong Ae Park , Yoon Chae Cheong
发明人： Tae Rim Park , Tae Seok Kim , Jong Ae Park , Yoon Chae Cheong
IPC分类号： H04L12/43 , H04J3/02
CPC分类号： H04L45/00 , H04L67/12 , H04W4/38 , H04W40/00 , H04W40/04 , H04W40/08 , H04W40/20 , H04W74/08 , H04W84/18 , Y02D70/142 , Y02D70/164 , Y02D70/32 , Y02D70/324 , Y02D70/38
摘要： A packet routing apparatus and method are provided. The packet routing apparatus may participate in a sensor network. In certain aspects the packet routing apparatus may snatch a request to send (RTS) signal that is transmitted from a first node to a second node in the sensor network and may intervene on the relay path of the snatched data packet. In certain aspects, the packet routing apparatus may sniff a data packet that is transmitted from a first node to a second node and may intervene on the relay path of the sniffed data packet.
摘要翻译：提供了一种分组路由设备和方法。分组路由设备可以参与传感器网络。在某些方面，分组路由设备可以抓取从传感器网络中从第一节点发送到第二节点的发送请求（RTS）信号，并且可以介入捕获的数据分组的中继路径上。在某些方面，分组路由装置可以将从第一节点发送的数据分组嗅探到第二节点，并且可以在嗅探数据分组的中继路径上进行干预。

2. 发明申请

US20120087297A1 PACKET ROUTING APPARATUS AND METHOD 有权
标题翻译：分组路由设备和方法
公开(公告)号：US20120087297A1
公开(公告)日：2012-04-12
申请号：US13152087
申请日：2011-06-02
申请人： Tae Rim Park , Tae Seok Kim , Jong Ae Park , Yoon Chae Cheong
发明人： Tae Rim Park , Tae Seok Kim , Jong Ae Park , Yoon Chae Cheong
IPC分类号： H04B7/14 , H04W4/00 , H04W88/04
CPC分类号： H04L45/00 , H04L67/12 , H04W4/38 , H04W40/00 , H04W40/04 , H04W40/08 , H04W40/20 , H04W74/08 , H04W84/18 , Y02D70/142 , Y02D70/164 , Y02D70/32 , Y02D70/324 , Y02D70/38
摘要： A packet routing apparatus and method are provided. The packet routing apparatus may participate in a sensor network. In certain aspects the packet routing apparatus may snatch a request to send (RTS) signal that is transmitted from a first node to a second node in the sensor network and may intervene on the relay path of the snatched data packet. In certain aspects, the packet routing apparatus may sniff a data packet that is transmitted from a first node to a second node and may intervene on the relay path of the sniffed data packet.
摘要翻译：提供了一种分组路由设备和方法。分组路由设备可以参与传感器网络。在某些方面，分组路由设备可以抓取从传感器网络中从第一节点发送到第二节点的发送请求（RTS）信号，并且可以介入捕获的数据分组的中继路径上。在某些方面，分组路由装置可以将从第一节点发送的数据分组嗅探到第二节点，并且可以在嗅探数据分组的中继路径上进行干预。

3. 发明授权

US08655410B2 Beam wobbling for increased downlink coverage and capacity 有权
标题翻译：波束摆动增加下行链路的覆盖和容量
公开(公告)号：US08655410B2
公开(公告)日：2014-02-18
申请号：US13288551
申请日：2011-11-03
申请人： Nimal Gamini Senarath , Yoon Chae Cheong , Shalini Periyalwar , Robert Matyas
发明人： Nimal Gamini Senarath , Yoon Chae Cheong , Shalini Periyalwar , Robert Matyas
IPC分类号： H04M1/00
CPC分类号： H04W16/28 , H04B7/0604 , H04B7/0695 , H04W16/02 , H04W16/12
摘要： A method and apparatus for reducing signal interference within a cellular radio system to increase both coverage and capacity. The method and apparatus include altering the direction of beams within cell sectors is among discrete angular positions according to a predetermined, cyclic pattern. The predetermined, cyclic pattern varies in a group of adjacent cell sectors such that inter-cell interference is significantly reduced or eliminated by rotating at a different cycle the beams in adjacent cells. This discrete, angular movement of beams provides for downlink transmissions to be timed in such a way (i.e., scheduled) such that transmission to a user will occur in accordance with the beam and time slot having the best carrier to interference (C/I) ratio for that user.
摘要翻译：一种用于减少蜂窝无线电系统内的信号干扰以增加覆盖和容量的方法和装置。所述方法和装置包括根据预定的循环模式改变小区扇区内的波束的方向在离散角位置之间。预定的循环模式在一组相邻小区扇区中变化，使得通过在相邻小区中的波束的不同周期旋转来显着减少或消除小区间干扰。波束的这种离散角度运动使得下行链路传输以这种方式（即，调度的）被定时，使得根据具有最佳载波干扰（C / I）的波束和时隙将发生给用户，该用户的比例。

4. 发明授权

US07756520B2 Packet communication system with dual candidate sets for independent management of uplink and downlink transmissions 有权
标题翻译：具有双候选集的分组通信系统，用于独立管理上行链路和下行链路传输
公开(公告)号：US07756520B2
公开(公告)日：2010-07-13
申请号：US09977991
申请日：2001-10-17
申请人： Bassam M. Hashem , Shalini S. Periyalwar , Yoon Chae Cheong
发明人： Bassam M. Hashem , Shalini S. Periyalwar , Yoon Chae Cheong
IPC分类号： H04W72/00
CPC分类号： H04W48/20 , H04B7/022 , H04B7/086 , H04W36/08
摘要： A method and apparatus are provided for selecting an optimum base station for communicating with a terminal in a wireless communication system. A base station controller stores two candidate sets for each terminal within communication range of the base stations controlled by the base station controller. One candidate set lists base stations for which the channel quality of the uplink channel between the base station and the terminal is acceptable for communication. The other candidate set lists base stations for which the channel quality of the downlink channel between is acceptable for communication. This allows the base station controller to take into account the predominant direction of traffic when assigning base stations for communication with the terminal.
摘要翻译：提供一种用于选择用于在无线通信系统中与终端通信的最佳基站的方法和装置。基站控制器在由基站控制器控制的基站的通信范围内为每个终端存储两个候选集。一个候选集列出了基站和终端之间的上行链路信道的信道质量可接受用于通信的基站。另一候选集合列出下行链路信道的信道质量对于通信是可接受的基站。这允许基站控制器在分配用于与终端通信的基站时考虑业务的主要方向。

5. 发明授权

US07301950B1 Adaptive state transition control 有权
标题翻译：自适应状态转换控制
公开(公告)号：US07301950B1
公开(公告)日：2007-11-27
申请号：US10075436
申请日：2002-02-14
申请人： Yoon Chae Cheong , Gamini Senarath , Hang Zhang
发明人： Yoon Chae Cheong , Gamini Senarath , Hang Zhang
IPC分类号： H04L12/28 , H04L12/56 , H04L1/00 , H04L12/26 , H04B7/00
CPC分类号： H04W52/0216 , H04W24/00 , H04W52/0219 , H04W76/20 , H04W88/08 , Y02D70/00
摘要： The present invention provides an access point, such as a base station, facilitating wireless communications with a plurality of mobile terminals, which are capable of operating in an active or standby mode. The access point provides active-to-standby transition timers for controlling when to instruct active mobile terminals to enter a standby mode after the end of a communication session. The active-to-standby transition timers have variable values based on one or more Quality of Service (QoS) parameters. Different mobile terminals may be associated with different QoS levels. The values for the active-to-standby transition timers may vary based on their respective QoS levels. The initial values for the active-to-standby transition timers may differ depending on the QoS level for the associated mobile terminal. As the QoS parameters indicate conditions adversely affecting QoS, the active-to-standby timer values may decrease in proportion to the QoS parameters.
摘要翻译：本发明提供了一种接入点，诸如基站，便于与多个移动终端进行无线通信，这些移动终端能够以主动或待机模式运行。接入点提供主动到待机的转换定时器，用于在通信会话结束之后控制何时指示活动移动终端进入待机模式。主动到待机转换定时器具有基于一个或多个服务质量（QoS）参数的可变值。不同的移动终端可能与不同的QoS级别相关联。主动到待机转换定时器的值可能会根据各自的QoS级别而变化。主动到待机转换定时器的初始值可能会因相关移动终端的QoS级别而异。由于QoS参数表示对QoS有不利影响的情况，主动到待机定时器值可能与QoS参数成比例地减小。

6. 发明授权

US07289427B2 Enhanced ARQ with OFDM modulation symbols 有权
标题翻译：具有OFDM调制符号的增强型ARQ
公开(公告)号：US07289427B2
公开(公告)日：2007-10-30
申请号：US11515840
申请日：2006-09-06
申请人： David G. Steer , Shalini S. Periyalwar , Koon Hoo Teo , Yoon Chae Cheong , Bassam M. Hashem
发明人： David G. Steer , Shalini S. Periyalwar , Koon Hoo Teo , Yoon Chae Cheong , Bassam M. Hashem
IPC分类号： H04J11/00
CPC分类号： H04L1/1812 , H04L1/1845 , H04L1/1867 , H04L27/2602
摘要： A method and apparatus are provided for error correction in a communication system employing Orthogonal Frequency Division Multiplexing. When a remote unit receives an OFDM symbol, a retransmission indicator bit is examined to determine whether the symbol is an original symbol or a retransmitted symbol. If it is a retransmitted symbol and the remote unit has a corresponding symbol stored in memory, then the received symbol is soft-combined with the stored symbol. Each packet in the symbol, either the received symbol if original or the soft-combined symbol if retransmitted, is examined by the remote unit. If the remote unit determines that a particular packet is intended for the remote unit, but can not determine the contents of the payload of the packet, the remote unit sends a retransmission request to the base station for retransmission of the symbol. The base station determines whether the entire symbol or merely the packet should be retransmitted, based on such considerations as the size of the packet or whether there are additional requests for the symbol. The invention allows both soft-symbol combining and Automatic Repeat Request to be used as error correction techniques.
摘要翻译：在采用正交频分复用的通信系统中提供了用于纠错的方法和装置。当远程单元接收到OFDM符号时，检查重传指示符位以确定符号是原始符号还是重传符号。如果是重传符号，并且远程单元具有存储在存储器中的对应符号，则接收的符号与存储的符号软组合。符号中的每个数据包，如果是原始的接收到的符号，或者如果被重新发送，则由软组合符号被远程单元检查。如果远程单元确定特定分组旨在用于远程单元，但是不能确定分组的有效载荷的内容，则远程单元向基站发送重传请求以重传该符号。基站基于诸如分组的大小或者是否存在对该符号的附加请求的考虑来确定是否应该重传整个符号或仅重新分组。本发明允许将软符号组合和自动重复请求用作纠错技术。

7. 发明授权

US06885679B1 System and method for layer 2 frame delineation recovery 有权
标题翻译：系统和方法为第2层框架划定恢复
公开(公告)号：US06885679B1
公开(公告)日：2005-04-26
申请号：US09672705
申请日：2000-09-29
申请人： Yoon Chae Cheong , Bassam M. Hashem , Shalini S. Periyalwar
发明人： Yoon Chae Cheong , Bassam M. Hashem , Shalini S. Periyalwar
IPC分类号： H04L27/26 , H04L29/08 , H04L29/14 , H04J3/16
CPC分类号： H04L27/2613 , H04L5/0048 , H04L27/2656 , H04L69/324 , H04L69/40
摘要： Methods, receivers and transmitters all adapted to assist in the performance of layer 2 frame delineation are provided which are applicable in the context of OFDM, and also applicable to any layer 1 design facilitating high data rate transmission. Advantageously, the invention allows the identification of where a layer 2 frame begins notwithstanding the fact that the previous layer 2 header, which would normally be used to identify the location of the next layer 2 frame, has been received in error. As a consequence, rather than discarding considerable quantities of data after an erroneous header, for example all data until a super-frame boundary, layer 2 frames can be correctly received staring with the next header received in a non-erroneous layer 1 frame.
摘要翻译：提供了适用于第2层帧描述的方法，接收机和发射机，其适用于OFDM的上下文，并且也适用于促进高数据速率传输的任何第1层设计。有利地，本发明允许识别层2帧开始的位置，尽管事实上已经错误地接收了通常用于标识下一层2帧的位置的先前的层2报头。因此，不是在错误的报头之后丢弃相当大量的数据，例如在超帧边界之前的所有数据，可以使用在非错误层1帧中接收的下一个标题来正确接收第2层的帧。

8. 发明授权

US08554210B2 Apparatus and method for storing hand over information 有权
标题翻译：用于存储移交信息的装置和方法
公开(公告)号：US08554210B2
公开(公告)日：2013-10-08
申请号：US11869194
申请日：2007-10-09
申请人： Hyun Ho Choi , In Sun Lee , Hyo Sun Hwang , Yoon Chae Cheong , Tae In Hyon , Kyung Hun Jang , Young Soo Kim
发明人： Hyun Ho Choi , In Sun Lee , Hyo Sun Hwang , Yoon Chae Cheong , Tae In Hyon , Kyung Hun Jang , Young Soo Kim
IPC分类号： H04W4/00
CPC分类号： H01L29/86 , H01L23/5228 , H01L2924/0002 , H04W36/08 , H04W88/08 , H04W88/18 , H01L2924/00
摘要： An apparatus for storing handover information in a mobile communication system is provided. The apparatus includes an estimation unit configured to estimate a direction of arrival (DOA) of a received signal with respect to a first base station based on the received signal, the received signal being received from a terminal belonging to the first base station, and a storage unit to store the estimated DOA as handover information associated with a second base station when the terminal is handed over to the second base station.
摘要翻译：提供一种用于在移动通信系统中存储切换信息的装置。该装置包括：估计单元，被配置为基于接收到的信号估计接收信号相对于第一基站的接收信号的方向（DOA），接收信号是从属于第一基站的终端接收的，以及存储单元，当终端被切换到第二基站时，将估计的DOA存储为与第二基站相关联的切换信息。

9. 发明授权

US07383057B1 Cyclic transmit power adjustment scheme 有权
标题翻译：循环发射功率调整方案
公开(公告)号：US07383057B1
公开(公告)日：2008-06-03
申请号：US10848438
申请日：2004-05-18
申请人： Gamini Senarath , Yoon Chae Cheong , Shalini Periyalwar
发明人： Gamini Senarath , Yoon Chae Cheong , Shalini Periyalwar
IPC分类号： H04B7/00 , H04Q7/20
CPC分类号： H04L1/0026 , H04B17/24 , H04B17/309 , H04B17/345 , H04L5/0007 , H04L5/0023 , H04L5/0032 , H04L5/0037 , H04L5/006 , H04L5/0064 , H04L5/0094 , H04W52/367 , H04W72/1226
摘要： The present invention provides cyclic power changing patterns for transmissions in different sectors of a cellular system. The cyclic power changing patterns define unique patterns in which transmission power levels change over a period of time slots or within a group of sub-carriers. Each sector has a unique pattern, so that interference information monitored by the user elements, which are supported by base stations, are indicative of the interference contributions from adjacent sectors. Based on these interference contributions and the cyclic power changing patterns associated with these sectors, the base stations can schedule transmissions to the user elements during time slots or in sub-carriers to minimize the impact of interference from the adjacent sectors and to efficiently support dynamic needs of the individual user data packets according to QoS requirements.
摘要翻译：本发明提供了用于蜂窝系统的不同扇区中的传输的循环功率变化模式。循环功率变化模式定义了发射功率电平在一段时间段或一组子载波内变化的独特模式。每个扇区具有唯一的模式，使得由基站支持的用户元素所监视的干扰信息表示来自相邻扇区的干扰贡献。基于这些干扰贡献和与这些扇区相关联的循环功率变化模式，基站可以在时隙或子载波期间调度到用户单元的传输，以最小化来自相邻扇区的干扰的影响并且有效地支持动态需求的个人用户数据包根据QoS要求。

10. 发明授权

US07110351B2 Enhanced ARQ with OFDM modulation symbols 有权
公开(公告)号：US07110351B2
公开(公告)日：2006-09-19
申请号：US09739367
申请日：2000-12-19
申请人： David G. Steer , Shalini S. Periyalwar , Koon Hoo Teo , Yoon Chae Cheong , Bassam M. Hashem
发明人： David G. Steer , Shalini S. Periyalwar , Koon Hoo Teo , Yoon Chae Cheong , Bassam M. Hashem
IPC分类号： H04J11/00
CPC分类号： H04L1/1812 , H04L1/1845 , H04L1/1867 , H04L27/2602
摘要： A method and apparatus are provided for error correction in a communication system employing Orthogonal Frequency Division Multiplexing. When a remote unit receives an OFDM symbol, a retransmission indicator bit is examined to determine whether the symbol is an original symbol or a retransmitted symbol. If it is a retransmitted symbol and the remote unit has a corresponding symbol stored in memory, then the received symbol is soft-combined with the stored symbol. Each packet in the symbol, either the received symbol if original or the soft-combined symbol if retransmitted, is examined by the remote unit. If the remote unit determines that a particular packet is intended for the remote unit, but can not determine the contents of the payload of the packet, the remote unit sends a retransmission request to the base station for retransmission of the symbol. The base station determines whether the entire symbol or merely the packet should be retransmitted, based on such considerations as the size of the packet or whether there are additional requests for the symbol. The invention allows both soft-symbol combining and Automatic Repeat Request to be used as error correction techniques.

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