公开(公告)号：US20090286546A1

公开(公告)日：2009-11-19

申请号：US12378885

申请日：2009-02-20

申请人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Chi-Hyun Park ,  Sang-Boh Yun ,  Seung-Hee Han

发明人： Sung-Soo Hwang ,  Jin-Ghoo Choi ,  Chi-Hyun Park ,  Sang-Boh Yun ,  Seung-Hee Han

IPC分类号： H04W72/08

CPC分类号： H04B7/15542 ,  H04B1/1027

摘要： An apparatus and method for avoiding interference between a base station and a relay station when using full duplex relay in a multi-hop relay wireless communication system are provided. An operation of a mobile station includes measuring an strength of a receive signal from a base station and an strength of a receive signal from an relay station, calculating a receive signal strength ratio of base station to relay station by dividing the strength of the receive signal from the base station by the strength of the receive signal from the relay station, determining if interference occurs using the receive signal strength ratio, and transmitting a control message representing if interference occurs.

摘要翻译： 提供了一种用于在多跳中继无线通信系统中使用全双工中继时避免基站与中继站之间的干扰的装置和方法。 移动站的操作包括测量来自基站的接收信号的强度和来自中继站的接收信号的强度，通过除去接收信号的强度来计算基站到中继站的接收信号强度比 从基站通过来自中继站的接收信号的强度，使用接收信号强度比确定是否发生干扰，以及发送表示是否发生干扰的控制消息。

公开(公告)号：US20090286494A1

公开(公告)日：2009-11-19

申请号：US12454272

申请日：2009-05-14

申请人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

发明人： Joo-Hyun Lee ,  Sung-Soo Hwang ,  Sang-Boh Yun ,  Jong-Ho Lee ,  Sung-Yoon Jung ,  Joonhyuk Kang ,  Kyung-Ho Park ,  Jong-Sub Cha ,  Namseok Chang ,  Keon-Kook Lee

IPC分类号： H04B1/04

CPC分类号： H04L25/03203 ,  H04L25/03191 ,  H04L25/0328 ,  H04L25/03343 ,  H04L2025/03426

摘要： An iterative tree search-based preceding method for a multi-user Multi-Input Multi-Output (MIMO) communication system includes determining a reference value of a cumulative branch metric of a candidate symbol, eliminating candidates having values that exceed the determined reference value of the cumulative branch metric of the candidate symbol, and registering values, which do not exceed the determined reference value of the cumulative branch metric of the candidate symbol, as entries, and selecting the least value from the values registered as the entries. Thereby, the method has low complexity and similar performance compared to an existing Sphere Encoding (SE) technique.

摘要翻译： 用于多用户多输入多输出（MIMO）通信系统的基于迭代树搜索的先前方法包括确定候选符号的累积分支度量的参考值，消除具有超过确定的参考值的值的候选者 候选符号的累积分支度量，以及将不超过所确定的候选符号的累积分支度量的参考值的值登记为条目，并从登记为条目的值中选择最小值。 因此，与现有的球体编码（SE）技术相比，该方法具有低复杂性和相似的性能。

公开(公告)号：US07542442B2

公开(公告)日：2009-06-02

申请号：US11205594

申请日：2005-08-17

申请人： Ho-Won Lee ,  Dong-Ho Cho ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Ki-Ho Lee ,  Tae-Soo Kwon ,  Ju-Yeop Kim ,  Sik Choi

发明人： Ho-Won Lee ,  Dong-Ho Cho ,  Sang-Boh Yun ,  Sung-Hyun Cho ,  Won-Hyoung Park ,  Ki-Ho Lee ,  Tae-Soo Kwon ,  Ju-Yeop Kim ,  Sik Choi

IPC分类号： H04Q7/24

CPC分类号： H04W72/1284 ,  H04W28/22 ,  H04W72/0413 ,  H04W72/087 ,  H04W72/1268 ,  H04W72/1289 ,  H04W80/04

摘要： A method of scheduling uplink resources in a wireless communication system supporting VoIP service is provided. A BS allocates an identical amount of the resource continuously until an uplink data rate is changed by an SS's request for a data rate change. When the data rate is changed, the SS reports this event to the BS so that the BS allocates an amount of resource corresponding to the requested data rate.

摘要翻译： 提供了一种在支持VoIP业务的无线通信系统中调度上行链路资源的方法。 BS连续分配相同数量的资源，直到SS对数据速率改变的请求改变上行链路数据速率。 当数据速率改变时，SS将该事件报告给BS，使得BS分配与所请求的数据速率相对应的资源量。

公开(公告)号：US20080137769A1

公开(公告)日：2008-06-12

申请号：US12001264

申请日：2007-12-11

申请人： Suk-Seung Hwang ,  Sang-Boh Yun ,  Young-Hoon Kwon

发明人： Suk-Seung Hwang ,  Sang-Boh Yun ,  Young-Hoon Kwon

IPC分类号： H04B7/02

CPC分类号： H04L25/03006 ,  H04L1/0618 ,  H04L5/00

摘要： A signal reception apparatus of an orthogonal frequency division multiplexing (OFDM) communication system using a multiple input, multiple output (MIMO) scheme. The signal reception apparatus, when it uses the NR receive antennas, receives a time-domain preamble signal transmitted by a signal transmission apparatus corresponding thereto via each of the NR receive antennas, and estimates a channel according to a channel estimation scheme using the time-domain preamble signal received via each of the NR receive antennas. When the signal transmission apparatus uses NT transmit antennas, the time-domain preamble signal is a signal transmitted by the signal transmission apparatus via each of the NT transmit antennas for a second time period which is set according to a corresponding transmit antenna within a first time period.

摘要翻译： 一种使用多输入多输出（MIMO）方式的正交频分复用（OFDM）通信系统的信号接收装置。 信号接收装置在使用N＆lt; R＆gt;接收天线时，接收由与其对应的信号发送装置发送的时域前导信号 天线，并且使用经由每个N个N个接收天线接收的时域前导信号，根据信道估计方案来估计信道。 当信号发送装置使用N T T个发送天线时，时域前导码信号是信号发送装置经由N T个发送天线中的每一个发送的信号， 第二时间段，其在第一时间段内根据相应的发射天线设置。

公开(公告)号：US20080119145A1

公开(公告)日：2008-05-22

申请号：US11986449

申请日：2007-11-21

申请人： Joo-Hyun Lee ,  Jae-Kon Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Oh-Soon Shin

发明人： Joo-Hyun Lee ,  Jae-Kon Lee ,  Sang-Boh Yun ,  Young-Hoon Kwon ,  Oh-Soon Shin

IPC分类号： H04B1/02

CPC分类号： H04B1/406 ,  H04B1/0071

摘要： Hybrid Duplex (DUAL MODE) apparatus and method for supporting a low-complexity terminal in a wireless communication system are provided. The apparatus includes a frequency generator and controller for selecting a frequency for one of the dual mode according to a scheduling and generating a control signal for a Duplexer/Switch switching to the selected mode; and a reconfigurable radio frequency (RF) filter/mixer for up-converting an input intermediate frequency (IF) signal to an RF signal using the selected frequency. Accordingly, the DUAL MODE service of the low-complexity terminal can be supported effectively.

摘要翻译： 提供了一种用于在无线通信系统中支持低复杂度终端的混合双工（DUAL MODE）装置和方法。 该装置包括频率发生器和控制器，用于根据调度选择双模式之一的频率，并产生用于双工器/交换机切换到选择模式的控制信号; 以及用于使用所选择的频率将输入中频（IF）信号上变频到RF信号的可重配置射频（RF）滤波器/混频器。 因此，可以有效地支持低复杂度终端的DUAL MODE业务。

公开(公告)号：US20080080405A1

公开(公告)日：2008-04-03

申请号：US11864092

申请日：2007-09-28

申请人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Ghoo Choi

发明人： Oh-Soon Shin ,  Sang-Boh Yun ,  Jin-Ghoo Choi

IPC分类号： H04J3/00 ,  H04Q7/00

CPC分类号： H04B7/265

摘要： An apparatus for bidirectional communication using one or more auxiliary bands in a wireless communication system is provided. A primary band transmitter transmits data over one or more primary bands in a frame. A primary band receiver receives data over the one or more primary bands in the frame. An auxiliary band transmitter transmits data over one or more first auxiliary bands in the frame. An auxiliary band receiver receives data over the one or more first auxiliary bands or over the one or more first auxiliary bands and one or more second auxiliary bands in the frame. Therefore, it is possible to facilitate a low-delay service and to cope with a rapid channel change due to high-speed movement.

摘要翻译： 提供了一种在无线通信系统中使用一个或多个辅助频带的双向通信的装置。 主频带发射机在帧中的一个或多个主频带上发送数据。 主频带接收机通过帧中的一个或多个主频带接收数据。 辅助频带发射机在帧中的一个或多个第一辅助频带上发射数据。 辅助频带接收机通过一个或多个第一辅助频带或者在该帧中的一个或多个第一辅助频带和一个或多个第二辅助频带上接收数据。 因此，可以促进低延迟服务并且能够应对由于高速运动引起的快速频道改变。

公开(公告)号：US20070133416A1

公开(公告)日：2007-06-14

申请号：US11638783

申请日：2006-12-14

申请人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

发明人： Tae-In Hyon ,  Sang-Boh Yun ,  Hoon Kim

IPC分类号： H04J1/16 ,  H04J3/16

CPC分类号： H04L47/12 ,  H04L1/1607 ,  H04L1/1867 ,  H04L47/10 ,  H04L47/14 ,  H04L47/193 ,  H04L47/2466 ,  H04W28/10 ,  H04W80/06

摘要： A transport control method in a transmitter of a wireless communication system, which includes a transport layer having a congestion control function of transmitting data in a segment basis and retransmitting a segment if an RTO timer expires before receipt of an ACK segment is received in response to transmission of the segment and a MAC layer for detecting receipt of an ACK segment through a wireless link and transporting the detected ACK segment to the transport layer, includes temporarily storing received ACK segments in the MAC layer; detecting an average transmission rate of data segments; and transporting the stored ACK segments to the transport layer at the average transmission rate. Accordingly, by controlling an upward transport rate of a received ACK message by referring to an RTO value of a TCP in a MAC layer, unnecessary retransmission can be prevented by a congestion control function.

摘要翻译： 一种无线通信系统的发送器中的传输控制方法，其包括具有如下的传输层：具有在接收到ACK段之前RTO定时器到期时以段为单位发送数据的拥塞控制功能的传输层;响应于 该段的传输和用于检测通过无线链路接收ACK段的MAC层，并将检测到的ACK段传送到传输层，包括临时存储接收的ACK段在MAC层中; 检测数据段的平均传输速率; 并以平均传输速率将存储的ACK片段传送到传输层。 因此，通过参照MAC层中的TCP的RTO值来控制接收到的ACK消息的向上传输速率，可以通过拥塞控制功能来防止不必要的重传。

公开(公告)号：US20070121531A1

公开(公告)日：2007-05-31

申请号：US11517784

申请日：2006-09-08

申请人： Yeon-Woo Lee ,  Sang-Boh Yun ,  Harald Haas ,  Khaled Hassan ,  Stephen McLaughlin

发明人： Yeon-Woo Lee ,  Sang-Boh Yun ,  Harald Haas ,  Khaled Hassan ,  Stephen McLaughlin

IPC分类号： H04J3/00

CPC分类号： H04B7/2615 ,  H04L1/0018 ,  H04L2001/0097 ,  H04W72/00 ,  H04W84/042 ,  H04W84/12 ,  H04W88/04 ,  H04W88/10

摘要： Disclosed is a hybrid wireless communication system and a communication method in the system. The system supports time and frequency division duplexing modes and includes a base station having a cellular communication range based on a cellular mode and mobile stations within the cellular communication range. The base station divides each available frequency resource into frames for communication, and each frame switches between a real-time service mode and a non-real-time service mode at a switching time within the frame. Communication is performed with the mobile stations within the cellular communication range via at least one of an uplink and a downlink in the real-time service mode of each frame according to the frequency division duplexing mode. Communication is performed with the mobile stations via the uplink and the downlink in the non-real-time service mode of each frame according to an ad hoc mode based on the time division duplexing mode.

摘要翻译： 公开了一种混合无线通信系统和系统中的通信方法。 该系统支持时分双工模式，包括基于蜂窝模式的蜂窝通信范围的基站和蜂窝通信范围内的移动台。 基站将每个可用的频率资源划分成用于通信的帧，并且每帧在帧内的切换时间在实时业务模式和非实时业务模式之间切换。 根据频分双工模式，通过每帧的实时服务模式中的上行链路和下行链路中的至少一个，在蜂窝通信范围内与移动站进行通信。 根据时分双工模式，根据自组织模式，通过上行链路和下行链路在每帧的非实时业务模式下与移动站进行通信。

公开(公告)号：US20060007888A1

公开(公告)日：2006-01-12

申请号：US11156507

申请日：2005-06-20

申请人： Sang-Hoon Lee ,  Sung-Hyun Cho ,  Sang-Boh Yun

发明人： Sang-Hoon Lee ,  Sung-Hyun Cho ,  Sang-Boh Yun

IPC分类号： H04Q7/00

CPC分类号： H04W36/18 ,  H04L5/023 ,  H04W16/12 ,  H04W36/08 ,  H04W48/20

摘要： An OFDM mobile communication system includes a system controller for dividing an OFDM symbol into a control channel and a data channel, multiplexing the control channel to control subchannels, and allocating the multiplexed control subchannels to base stations. The base stations simultaneously transmit control signals on the control allocated subchannels and data on the data channel. Mobile nodes receive an OFDM symbols with the multiplexed control channels for them and a data channel for selecting a base station according to information in the control subchannels. The mobile node simultaneously processes control subchannels received from two base stations using one physical layer module.

摘要翻译： OFDM移动通信系统包括：系统控制器，用于将OFDM符号划分为控制信道和数据信道，将控制信道复用到控制子信道，并将多路复用的控制子信道分配给基站。 基站同时发送控制分配子信道上的控制信号和数据信道上的数据。 移动节点接收具有用于它们的多路复用控制信道的OFDM符号和用于根据控制子信道中的信息来选择基站的数据信道。 移动节点使用一个物理层模块同时处理从两个基站接收的控制子信道。

公开(公告)号：US20050169229A1

公开(公告)日：2005-08-04

申请号：US11020414

申请日：2004-12-23

申请人： Sung-Hyun Cho ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Young-Nam Han ,  Hoon Kim ,  Ja-Yong Koo

发明人： Sung-Hyun Cho ,  Sang-Boh Yun ,  Won-Hyoung Park ,  Young-Nam Han ,  Hoon Kim ,  Ja-Yong Koo

IPC分类号： H04L27/26 ,  H04W16/02 ,  H04W16/12 ,  H04J11/00

CPC分类号： H04W72/0413 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0094 ,  H04W16/02 ,  H04W28/16 ,  H04W72/0433

摘要： An apparatus and method for adaptively allocating subchannels according to frequency reuse rates in an OFDMA system are provided. To allocate one or more subchannels to one or more MSs, information related to an optimum FRF and a modulation scheme is received from the plurality of MSs, the number of subchannels required for each FRF is calculated according to the received information, subchannels are allocated to the BS for each FRF, based on the calculated subchannel numbers from the BS and neighboring BSs, and the allocated subchannels are allocated to the MSs.

摘要翻译： 提供了一种在OFDMA系统中根据频率复用率自适应地分配子信道的装置和方法。 为了将一个或多个子信道分配给一个或多个MS，从多个MS接收与最佳FRF和调制方案有关的信息，根据接收的信息计算每个FRF所需的子信道数，将子信道分配给 基于来自BS和相邻BS的计算的子信道号以及所分配的子信道的每个FRF的BS被分配给MS。