公开(公告)号：US20060098749A1

公开(公告)日：2006-05-11

申请号：US11249065

申请日：2005-10-12

申请人： Sang-Hoon Sung ,  In-Seok Hwang ,  Soon-Young Yoon ,  Chung-Ryul Chang ,  Jae-Hee Cho ,  Hoon Huh

发明人： Sang-Hoon Sung ,  In-Seok Hwang ,  Soon-Young Yoon ,  Chung-Ryul Chang ,  Jae-Hee Cho ,  Hoon Huh

IPC分类号： H04K1/10

CPC分类号： H04L27/2655 ,  H04L5/023

摘要： An apparatus and method for receiving a ranging signal in an OFDMA mobile communication system are provided. The ranging signal receiving apparatus including, a ranging subchannel extractor for extracting subcarrier values with a ranging signal from a (FFT) signal; a plurality of multipliers for code-demodulating the sub-carrier values by multiplying them by a plurality of ranging codes; each of a plurality of correlators for calculating a plurality of differential correlations in a code-demodulated signal received from a corresponding multiplier; each of a plurality of inverse fast Fourier transform (IFFT) processors for IFFT-processing differential correlations received from a corresponding correlator by mapping the differential correlations to predetermined subcarriers and each of a plurality of maximum value detectors for detecting a maximum value in an IFFT signal received from a corresponding IFFT processor and calculating a timing offset using an IFFT output index having the maximum value.

公开(公告)号：US20060046789A1

公开(公告)日：2006-03-02

申请号：US11204801

申请日：2005-08-16

申请人： Hoon Huh ,  Jae-Hee Cho ,  In-Seok Hwang ,  Eun-Sun Choi ,  Soon-Young Yoon ,  Sang-Hoon Sung

发明人： Hoon Huh ,  Jae-Hee Cho ,  In-Seok Hwang ,  Eun-Sun Choi ,  Soon-Young Yoon ,  Sang-Hoon Sung

IPC分类号： H04B1/38

CPC分类号： H04W52/10 ,  H04W52/08 ,  H04W52/20 ,  H04W52/245

摘要： An apparatus and a method for controlling uplink power utilizing an open-loop scheme in a mobile communication system using a TDD scheme. According to the apparatus and the method, an AT determines initial uplink transmit power and transmits uplink signals to an AP using the determined initial uplink transmit power, receives downlink signals from the AP, detects a power compensation value compensating for the uplink transmit power, which are determined according to whether an error has occurred in the uplink signals, measures receive power of the downlink signals, and adjusts the uplink transmit power according to the receive power and the power compensation value.

摘要翻译： 一种使用TDD方案的移动通信系统中利用开环方案来控制上行链路功率的装置和方法。 根据该装置和方法，AT确定初始上行发射功率，并使用所确定的初始上行链路发射功率向AP发送上行链路信号，从AP接收下行链路信号，检测补偿上行链路发射功率的功率补偿值， 根据上行链路信号是否发生错误来确定，测量下行链路信号的接收功率，并根据接收功率和功率补偿值调整上行链路发送功率。

公开(公告)号：US20050195791A1

公开(公告)日：2005-09-08

申请号：US11074153

申请日：2005-03-07

申请人： Sang-Hoon Sung ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jae-Hee Cho ,  Hoon Huh ,  In-Seok Hwang ,  Jae-Hyok Lee

发明人： Sang-Hoon Sung ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Seung-Joo Maeng ,  Jae-Hee Cho ,  Hoon Huh ,  In-Seok Hwang ,  Jae-Hyok Lee

IPC分类号： H04J11/00 ,  H04J3/06 ,  H04L5/02 ,  H04L27/26 ,  H04W28/06 ,  H04W64/00 ,  H04W72/04 ,  H04W72/08 ,  H04W84/12 ,  H04B7/216

CPC分类号： H04J3/0682 ,  G01S13/825 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0039 ,  H04L5/0048 ,  H04L5/0094 ,  H04L5/023 ,  H04L27/2613 ,  H04L27/2655 ,  H04W28/06 ,  H04W64/00 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/082 ,  H04W84/12

摘要： The present invention relates to a mobile communication system utilizing an OFDM scheme. In a broadband wireless access communication system utilizing an OFDM/OFDMA scheme, in which uplink time sync between a BS and a SS and the intensity of a BS reception signal are set, and a ranging signal is transmitted from the SS to the BS in order that the SS gives a bandwidth request to the BS. Described herein are a method for constructing a ranging channel, a method for a BS's operating a ranging channel to be used by a SS, a method for receiving ranging codes transmitted SS by SS from the BS to the SS through the ranging channel.

摘要翻译： 本发明涉及利用OFDM方案的移动通信系统。 在利用OFDM / OFDMA方案的宽带无线接入通信系统中，其中BS和SS之间的上行链路时间同步和BS接收信号的强度被设置，并且测距信号按顺序从SS发送到BS SS向BS提供带宽请求。 这里描述了一种用于构建测距信道的方法，用于BS操作要由SS使用的测距信道的方法，用于通过测距信道从BS向SS发送SS的SS的测量码的方法。

公开(公告)号：US07558535B2

公开(公告)日：2009-07-07

申请号：US11207396

申请日：2005-08-19

申请人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

发明人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

IPC分类号： H04B7/00

CPC分类号： H04W52/28 ,  H04W52/08 ,  H04W52/10

摘要： An apparatus and method for changing an uplink power control scheme according to mobile status in a TDD mobile communication system are provided. A subscriber station transmits to a base station a power control change request message including information about a requested power control scheme. Upon receipt of the power control change request message, the base station selects a power control scheme for the uplink of the subscriber station and transmits to the subscriber station a power control change command message including information about the selected power control scheme. The subscriber station extracts, upon receipt of the power control change command message from the base station, the power control scheme information from the power control change command message and selects a power control scheme according to the extracted information.

摘要翻译： 提供了一种用于在TDD移动通信系统中根据移动状态改变上行链路功率控制方案的装置和方法。 用户站向基站发送包括关于所请求的功率控制方案的信息的功率控制改变请求消息。 在接收到功率控制改变请求消息时，基站选择用户站的上行链路的功率控制方案，并向用户台发送包括关于所选择的功率控制方案的信息的功率控制改变命令消息。 用户站在从基站接收到功率控制改变命令消息后，从功率控制改变命令消息中提取功率控制方案信息，并根据所提取的信息选择功率控制方案。

公开(公告)号：US20090141681A1

公开(公告)日：2009-06-04

申请号：US12363315

申请日：2009-01-30

申请人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

发明人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

IPC分类号： H04W72/04

CPC分类号： H04L5/0041 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0046 ,  H04L5/0064 ,  H04L5/0083 ,  H04W16/10 ,  H04W16/14

摘要： An apparatus and method for assigning subchannels of a transmitter in a communication system. The method includes dividing an entire frequency band into m subcarrier groups; mapping each of the m subcarrier groups to a subcarrier group index, wherein a subchannel includes n subcarriers selected from each of the m subcarrier groups corresponding to a subcarrier group index sequence; determining that a first data is needed to transmit in a first timing point; and assigning a first subchannel in the first timing point using a first subcarrier group index sequence. The first subcarrier group index sequence is different from a second subcarrier group index sequence used for assigning a second subchannel in a second timing point.

摘要翻译： 一种用于在通信系统中分配发射机的子信道的装置和方法。 该方法包括将整个频带划分为m个子载波组; 将m个子载波组中的每一个映射到子载波组索引，其中，子信道包括从子载波组索引序列对应的m个子载波组中的每一个中选择的n个子载波; 确定需要第一数据以在第一定时点发送; 以及使用第一子载波组索引序列在第一定时点分配第一子信道。 第一子载波组索引序列与用于在第二定时点中分配第二子信道的第二子载波组索引序列不同。

公开(公告)号：US20060040619A1

公开(公告)日：2006-02-23

申请号：US11207396

申请日：2005-08-19

申请人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

发明人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

IPC分类号： H04B7/00 ,  H04Q7/20 ,  H04B1/00

CPC分类号： H04W52/28 ,  H04W52/08 ,  H04W52/10

摘要： An apparatus and method for changing an uplink power control scheme according to mobile status in a TDD mobile communication system are provided. A subscriber station transmits to a base station a power control change request message including information about a requested power control scheme. Upon receipt of the power control change request message, the base station selects a power control scheme for the uplink of the subscriber station and transmits to the subscriber station a power control change command message including information about the selected power control scheme. The subscriber station extracts, upon receipt of the power control change command message from the base station, the power control scheme information from the power control change command message and selects a power control scheme according to the extracted information.

公开(公告)号：US07991062B2

公开(公告)日：2011-08-02

申请号：US12049706

申请日：2008-03-17

申请人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Soung-Joo Maeng

发明人： Jae-Hee Cho ,  Jae-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Soung-Joo Maeng

IPC分类号： H04K1/10

CPC分类号： H04L5/0037 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04W16/12 ,  H04W28/16 ,  H04W74/00

摘要： A method of allocating sub-channel signal interleaving patterns to BSs forming a wireless communication system that divides a frequency band into a plurality of sub-carriers and including a plurality of sub-channels, which are a set of predetermined adjacent sub-carriers. The method includes: creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having a same length as the basic orthogonal sequence by cyclic-shifting the basic orthogonal sequence a predetermined number of times or performing a modulo operation based on a number of the sub-carriers forming the sub-channel, after adding a predetermined offset to the cyclic-shifted basic orthogonal sequence; selecting a predetermined number of sequences corresponding to a number of the BSs from among the plurality of sequences; and allocating the selected sequences as the sub-channel signal interleaving patterns for the BSs.

摘要翻译： 将子信道信号交织模式分配给形成无线通信系统的无线通信系统的方法，所述无线通信系统将频带划分成多个子载波，并且包括作为一组预定相邻子载波的多个子信道。 该方法包括：创建具有与形成子信道的子载波的数量相同的长度的基本正交序列; 通过将基本正交序列循环移位预定次数或者基于构成子信道的子载波的数量执行模运算来创建与基本正交序列具有相同长度的多个序列， 对循环移位的基本正交序列的预定偏移; 从所述多个序列中选择与所述BS的数量相对应的预定数量的序列; 并且将所选择的序列分配为用于BS的子信道信号交织模式。

公开(公告)号：US07907915B2

公开(公告)日：2011-03-15

申请号：US12491774

申请日：2009-06-25

申请人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

发明人： Jae-Hee Cho ,  In-Seok Hwang ,  Jang-Hoon Yang ,  Hoon Huh ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Young-Hoon Kwon

IPC分类号： H04B7/00

CPC分类号： H04W52/28 ,  H04W52/08 ,  H04W52/10

摘要： An apparatus and method for changing an uplink power control scheme according to mobile status in a TDD mobile communication system are provided. The communication system comprises a Subscriber Station (SS) for transmitting a power control change request message to a Base Station (BS) to change the power control scheme, and the BS for deciding to change the power control scheme between the open loop power control and closed loop power control, and transmitting a power control change response message the SS including the decided power control scheme.

摘要翻译： 提供了一种用于在TDD移动通信系统中根据移动状态改变上行链路功率控制方案的装置和方法。 通信系统包括用于向基站（BS）发送功率控制改变请求消息以改变功率控制方案的用户站（SS），以及用于决定改变开环功率控制和 闭环功率控制，以及发送功率控制变化响应消息，SS包括决定的功率控制方案。

公开(公告)号：US20080159436A1

公开(公告)日：2008-07-03

申请号：US12049706

申请日：2008-03-17

申请人： Jae-Hee CHO ,  Jee-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Soung-Joo Maeng

发明人： Jae-Hee CHO ,  Jee-Ho Jeon ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Ji-Ho Jang ,  In-Seok Hwang ,  Hoon Huh ,  Jeong-Heon Kim ,  Soung-Joo Maeng

IPC分类号： H04L27/00

CPC分类号： H04L5/0037 ,  H04L1/0061 ,  H04L1/0071 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0044 ,  H04W16/12 ,  H04W28/16 ,  H04W74/00

摘要： A method of allocating sub-channel signal interleaving patterns to BSs forming a wireless communication system that divides a frequency band into a plurality of sub-carriers and including a plurality of sub-channels, which are a set of predetermined adjacent sub-carriers. The method includes: creating a basic orthogonal sequence having a length identical to a number of the sub-carriers forming the sub-channel; creating a plurality of sequences having a same length as the basic orthogonal sequence by cyclic-shifting the basic orthogonal sequence a predetermined number of times or performing a modulo operation based on a number of the sub-carriers forming the sub-channel, after adding a predetermined offset to the cyclic-shifted basic orthogonal sequence; selecting a predetermined number of sequences corresponding to a number of the BSs from among the plurality of sequences; and allocating the selected sequences as the sub-channel signal interleaving patterns for the BSs.

摘要翻译： 将子信道信号交织模式分配给形成无线通信系统的无线通信系统的方法，所述无线通信系统将频带划分成多个子载波，并且包括作为一组预定相邻子载波的多个子信道。 该方法包括：创建具有与形成子信道的子载波的数量相同的长度的基本正交序列; 通过将基本正交序列循环移位预定次数或者基于构成子信道的子载波的数量执行模运算来创建与基本正交序列具有相同长度的多个序列， 对循环移位的基本正交序列的预定偏移; 从所述多个序列中选择与所述BS的数量相对应的预定数量的序列; 并且将所选择的序列分配为用于BS的子信道信号交织模式。

公开(公告)号：US20050094597A1

公开(公告)日：2005-05-05

申请号：US10978670

申请日：2004-11-01

申请人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

发明人： In-Seok Hwang ,  Soon-Young Yoon ,  Sang-Hoon Sung ,  Jae-Hee Cho ,  Hoon Huh

IPC分类号： H04J1/00 ,  H04J11/00 ,  H04L5/02 ,  H04L27/26 ,  H04W16/10 ,  H04W16/14 ,  H04Q7/00 ,  H04B7/212

CPC分类号： H04L5/0041 ,  H04L5/0007 ,  H04L5/0032 ,  H04L5/0046 ,  H04L5/0064 ,  H04L5/0083 ,  H04W16/10 ,  H04W16/14

摘要： A wireless communication system that divides an entire frequency band into a plurality of subcarrier bands and includes a plurality of subchannels, each of which includes a number of subcarrier bands. The number of subcarrier groups is equal to the number of the base stations included in the system and are generated by classifying the subcarrier bands in a period. For a particular base station, corresponding subcarrier bands are detected from each of the groups according to a sequence. The subcarrier bands detected from each of the groups are assigned as a subchannel for the particular base station. Further, the indexes of the subcarrier groups to which each of subcarriers constituting a subchannel belongs are changed whenever the subchannel is assigned, so as to acquire the desired diversity gain.

摘要翻译： 一种无线通信系统，其将整个频带划分为多个子载波频带，并且包括多个子信道，每个子信道包括多个子载波频带。 子载波组的数量等于系统中包括的基站的数量，并且通过在一个周期中对副载波频带进行分类而产生。 对于特定基站，根据序列从每个组检测相应的子载波频带。 将从每个组检测到的子载波频带分配为用于特定基站的子信道。 此外，每当分配子信道时，改变构成子信道的每个子载波所属的子载波组的索引，以便获得期望的分集增益。