公开(公告)号：WO2007114638A2

公开(公告)日：2007-10-11

申请号：PCT/KR2007001627

申请日：2007-04-03

Applicant: KOREA ELECTRONICS TELECOMM ,  KIM IL-GYU ,  PARK HYEONG-GEUN ,  CHANG KAP-SEOK ,  KO YOUNG-JO ,  YI HYO-SEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN ,  HWANG SEUNG-KU

Inventor： KIM IL-GYU ,  PARK HYEONG-GEUN ,  CHANG KAP-SEOK ,  KO YOUNG-JO ,  YI HYO-SEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN ,  HWANG SEUNG-KU

CPC classification number: H04L5/0053 ,  H04J11/0069 ,  H04L5/0016 ,  H04L27/2647 ,  H04W8/005 ,  H04W48/08 ,  H04W48/16 ,  H04W84/042 ,  H04W88/08

Abstract: A cell searching method in a time-division multiplexing (TDM)-based Orthogonal Frequency-Division Multiplexing (OFDM) cellular system having a primary synchronization channel and secondary synchronization channel, and a frame transmission method and system thereof are provided. In the cell searching method in an OFDM cellular system including a plurality of cells allocated with scrambling codes unique to the cells, wherein each base station transmits a frame of each cell and a terminal searches for a target cell by using the frame received from the base station, the cell searching method includes: acquiring Sync-block synchronization corresponding to a period of a primary synchronization channel symbol included in the frame received by the terminal and a primary synchronization channel sequence number by using the primary synchronization channel symbol; and acquiring a frame boundary of the frame and the target cell of the terminal based on the Sync-block synchronization and the primary synchronization channel sequence number by using a secondary synchronization channel symbol included in the frame received by the terminal. Accordingly, the synchronization can be acquired with low complexity.

Abstract translation: 提供了具有主同步信道和辅同步信道的基于时分复用（TDM）的正交频分复用（OFDM）蜂窝系统中的小区搜索方法及其帧传输方法和系统。 在包括分配有该小区唯一的扰码的多个小区的OFDM蜂窝系统的小区搜索方法中，每个基站发送每个小区的帧，终端通过使用从基站接收到的帧来搜索目标小区 小区搜索方法包括：通过使用主同步信道符号获取与由终端接收的帧中包括的主同步信道符号的周期相对应的同步块同步和主同步信道序列号; 以及通过使用由所述终端接收到的帧中包括的辅同步信道符号，基于所述同步块同步和所述主同步信道序列号，获取所述帧和所述终端的目标小区的帧边界。 因此，可以以低复杂度获取同步。

公开(公告)号：WO2007069830A3

公开(公告)日：2008-09-25

申请号：PCT/KR2006005197

申请日：2006-12-05

Applicant: KOREA ELECTRONICS TELECOMM ,  IND ACADEMIC COOP ,  KIM KWANG-SOON ,  RHEE DU-HO ,  KO YOUNG-JO ,  AHN JAE-YOUNG

Inventor： KIM KWANG-SOON ,  RHEE DU-HO ,  KO YOUNG-JO ,  AHN JAE-YOUNG

IPC: H04J11/00

CPC classification number: H04W52/247 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0029 ,  H04L1/20 ,  H04L5/023 ,  H04L2001/0093

Abstract: A receiving apparatus of a UE transmits at least one channel information among a plurality of channel information to a transmitting apparatus of a base station according to an adaptive transmission method set for a received signal. In addition, the receiving apparatus transmits channel state information generated on the basis of the plurality of channel information to the transmitting apparatus with a relatively long interval. The transmitting apparatus transmits traffic data to the transmitting apparatus by using the received channel state information and at least one of channel information and one of a plurality of adaptive transmission methods. Accordingly, the amount of channel information transmitted to the transmitting apparatus can be modified in accordance with an adaptive transmission method set for a received signal, thereby minimizing the amount of channel information fed back from the receiving apparatus and increasing system capacity.

Abstract translation: UE的接收装置根据对接收到的信号设定的自适应发送方法，将多个信道信息中的至少一个信道信息发送给基站的发送装置。 此外，接收装置以相对长的间隔向发送装置发送基于多个信道信息生成的信道状态信息。 发送装置通过使用接收到的信道状态信息和信道信息以及多个自适应发送方法中的至少一个来向业务数据发送业务数据。 因此，可以根据为接收信号设置的自适应发送方法来修改发送到发送装置的信道信息量，从而使从接收装置反馈的信道信息的量最小化并提高系统容量。

公开(公告)号：CA2642017A1

公开(公告)日：2008-01-31

申请号：CA2642017

申请日：2007-07-25

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM IL-GYU ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN ,  KO YOUNG-JO ,  PARK HYEONG-GEUN

IPC: H04L7/10

Abstract: In a cellular system in which OFDM is used, a forward link synchronization channel, a common pilot channel structure, an initial cell searching method of a mobile station, and an adjacent cell searching method for handover are required. A method of transmitting a forward synchronization signal in a wireless communication system according to the present invention includes generating a frame comprised of a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame comprises primary synchronization channel sequences which provide timing information of the sync blocks and a plurality of secondary synchronization channel sequences which provide timing information of the frame, wherein a cell identifier is specified by a combination of the primary synchronization channel sequence and a hopping code word specified by the plurality of the secondary synchronization channel sequences Therefore, the cell searching time can be efficiently reduced in an OFDM system.

公开(公告)号：WO2009020376A2

公开(公告)日：2009-02-12

申请号：PCT/KR2008004645

申请日：2008-08-08

Applicant: KOREA ELECTRONICS TELECOMM ,  KO YOUNG-JO ,  PARK HYEONG-GEUN ,  KIM IL-GYU ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN

Inventor： KO YOUNG-JO ,  PARK HYEONG-GEUN ,  KIM IL-GYU ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN

IPC: H04L29/06

CPC classification number: H04J11/003 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04L27/2607 ,  H04W72/00

Abstract: Provided is method of forming a signal in a wireless communication system in which a plurality of terminals commonly use a resource in the time domain and the frequency domain. The method includes multiplying a signal to be transmitted by a frequency domain orthogonal code symbol corresponding to a first cyclic shift index in a first slot to be transmitted to a base station, wherein the multiplying is performed by a first terminal and a second terminal; and multiplying information to be transmitted by a frequency domain orthogonal code symbol corresponding to a second cyclic index that is different from the first cyclic index of the first slot to be transmitted to the base station, in a second slot, wherein the multiplying is performed by the first terminal and the second terminal.

Abstract translation: 提供了一种在无线通信系统中形成信号的方法，其中多个终端共同使用时域和频域中的资源。 该方法包括：将要发送的信号乘以与第一时隙中的第一循环移位索引对应的频域正交码符号以发送给基站，其中所述乘法由第一终端和第二终端执行; 以及在第二时隙中乘以由要与所述第一时隙的第一循环索引不同的第二循环索引对应的频域正交码符号发送到所述基站的信息，其中所述乘法是通过 第一终端和第二终端。

公开(公告)号：WO2007066846A3

公开(公告)日：2008-08-21

申请号：PCT/KR2005004377

申请日：2005-12-19

Applicant: KOREA ELECTRONICS TELECOMM ,  IND ACADEMIC COOP ,  KO YOUNG-JO ,  AHN JAE-YOUNG ,  KIM KWANG-SOON ,  KWON JUNG-HYOUNG ,  WHANG KEUM-CHAN

Inventor： KO YOUNG-JO ,  AHN JAE-YOUNG ,  KIM KWANG-SOON ,  KWON JUNG-HYOUNG ,  WHANG KEUM-CHAN

IPC: H04L5/02 ,  H04L27/26 ,  H04Q7/38

CPC classification number: H04W72/0453 ,  H04L5/006 ,  H04L5/023 ,  H04L25/0204 ,  H04L27/2608 ,  H04W72/085

Abstract: The present invention relates to an adaptive transmitting device using limited feedback information in a mobile communication system, and a method thereof. According to an exemplary embodiment of the present invention, when the base station transmits a pilot signal to the terminal, the terminal generates channel information by using the pilot signal, generates additional channel information from the channel information, and transmits the channel information and the additional channel information to the base station. The base station determines band allocation, power allocation, and modulation methods for each use by using received feedback information, and transmits modulated traffic data to the terminal according to the determined methods.

Abstract translation: 本发明涉及一种在移动通信系统中使用有限反馈信息的自适应发送装置及其方法。 根据本发明的示例性实施例，当基站向终端发送导频信号时，终端通过使用导频信号生成信道信息，从信道信息生成附加信道信息，并发送信道信息和附加信道 信道信息到基站。 基站通过使用接收到的反馈信息来确定每个使用的频带分配，功率分配和调制方法，并且根据确定的方法向终端发送调制的业务数据。

公开(公告)号：BRPI0823509A2

公开(公告)日：2015-06-09

申请号：BRPI0823509

申请日：2008-06-23

Applicant: KOREA ELECTRONICS TELECOMM ,  KT CORP

Inventor： KO YOUNG-JO ,  PARK HYEONG-GEUN ,  KIM IL-GYU ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN

IPC: H04L1/12

Abstract: Métodos e equipamento terminal para transmitir informações de controle de uplink e recebê-las em estação de base terminal. Quando uma pluralidade de terminais compartilha os mesmos recursos num sistema de comunicações sem fio e quando controlam informações tais como informações de recebimento/confirmação negativa (ack/nak) ou são transmitidas informações de programação, é exigido realizar eficientemente um método de multiplexação de divisão de código (cdm) para distinguir a pluralidade determinais. Em particular, é necessário desenvolver um método pelo qual possa ser selecionada e usada uma seqúéneia de códigos de cdm de acordo com cada condição de célula. É proporcionado um método deformação de um sinal num sistema de comunicações sem fio em que uma pluralidade de terminais comumente compartilha recursos de frequência e de tempo. O método inclui as operações de recebimento de informações de condição numa célula; selecionar uma de uma pluralidade de seqúências ortogonais de domínio de tempo tendo comprimentos diferentes, de acordo com as informações de condição; e alocar a seqüência ortogonal de domínio de tempo selecionada para um bloco de símbolos de sinal de controle.

公开(公告)号：BRPI0812566A2

公开(公告)日：2012-12-25

申请号：BRPI0812566

申请日：2008-06-23

Applicant: KOREA ELECTRONICS TELECOMM ,  KT CORP

Inventor： KO YOUNG-JO ,  PARK HYEONG-GEUN ,  KIM IL-GYU ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN

IPC: H04L1/12

Abstract: When a plurality of terminals share the same resources in a wireless communication system, and when control information such as acknowledgement/negative acknowledgement (ACK/NAK) information or scheduling information is transmitted, a method of efficiently performing code division multiplexing (CDM) is required to distinguish the plurality of terminals. In particular, it is necessary to develop a method by which a code sequence of CDM can be selected and used according to each cell condition. Provided is a method of forming a signal in a wireless communication system in which a plurality of terminals commonly share frequency and time resources. The method includes the operations of receiving condition information in a cell; selecting one of a plurality of time domain orthogonal sequences having different lengths, according to the condition information; and allocating the selected time domain orthogonal sequence to a control signal symbol block.

公开(公告)号：CA2642017C

公开(公告)日：2012-09-18

申请号：CA2642017

申请日：2007-07-25

Applicant: KOREA ELECTRONICS TELECOMM

Inventor： KIM IL-GYU ,  PARK HYEONG-GEUN ,  KO YOUNG-JO ,  CHANG KAPSEOK ,  YI HYOSEOK ,  KIM YOUNG-HOON ,  BANG SEUNG-CHAN

IPC: H04L7/10

Abstract: In a cellular system in which OFDM is used, a forward link synchronization channel, a common pilot channel structure, an initial cell searching method of a mobile station, and an adjacent cell searching method for handover are required. A method of transmitting a forward synchronization signal in a wireless communication system according to the present invention includes generating a frame comprised of a plurality of sync blocks; and transmitting the frame through a forward link, wherein the frame comprises primary synchronization channel sequences which provide timing information of the sync blocks and a plurality of secondary synchronization channel sequences which provide timing information of the frame, wherein a cell identifier is specified by a combination of the primary synchronization channel sequence and a hopping code word specified by the plurality of the secondary synchronization channel sequences Therefore, the cell searching time can be efficiently reduced in an OFDM system.

公开(公告)号：WO2012108716A3

公开(公告)日：2012-10-04

申请号：PCT/KR2012001001

申请日：2012-02-10

Applicant: KOREA ELECTRONICS TELECOMM ,  KO YOUNG-JO ,  NOH TAE-GYUN ,  LEE HEE-SOO ,  SEO BANG-WON ,  AHN JAE-YOUNG

Inventor： KO YOUNG-JO ,  NOH TAE-GYUN ,  LEE HEE-SOO ,  SEO BANG-WON ,  AHN JAE-YOUNG

IPC: H04B7/04 ,  H04J11/00

CPC classification number: H04W72/082 ,  H04B7/024 ,  H04J11/0079 ,  H04L5/0035 ,  H04L5/005 ,  H04L5/0051 ,  H04W16/24 ,  H04W16/32 ,  H04W72/0406

Abstract: Disclosed is a wireless communication system using multiple transmission and reception points. In a wireless communication system having a first transmission and reception point and at least one second transmission and reception point belonging to the same cell, the first transmission and reception point has a wider transmission area than the at least one second transmission and reception point, and the first transmission and reception point and the at least one second transmission and reception point generate downlink transmission signals by using the same physical layer cell ID or virtual cell IDs allocated to each terminal, and then the terminals generate uplink transmission signals by using the allocated virtual cell IDs.

Abstract translation: 公开了一种使用多个发送和接收点的无线通信系统。 在具有第一发送和接收点以及属于同一小区的至少一个第二发送和接收点的无线通信系统中，第一发送和接收点具有比至少一个第二发送和接收点更宽的发送区域，并且 第一发送和接收点以及至少一个第二发送和接收点通过使用分配给每个终端的相同物理层小区ID或虚拟小区ID来生成下行链路发送信号，然后终端通过使用所分配的虚拟 小区ID。

公开(公告)号：WO2010050785A3

公开(公告)日：2011-08-04

申请号：PCT/KR2009006362

申请日：2009-10-30

Applicant: KOREA ELECTRONICS TELECOMM ,  NAM JUNYOUNG ,  LEE HEESOO ,  KO YOUNG-JO ,  AHN JAE-YOUNG

Inventor： NAM JUNYOUNG ,  LEE HEESOO ,  KO YOUNG-JO ,  AHN JAE-YOUNG

IPC: H04B7/02 ,  H04B7/155 ,  H04L25/14 ,  H04W48/10

CPC classification number: H04B7/022 ,  H04B7/026 ,  H04B7/15592

Abstract: A data transmission and reception method in a cooperative communication system is provided. The data transmission method of a base station in a cooperative communication system includes: generating a first code word for cooperative transmission and a second code word for direct transmission to a mobile station (105); and transmitting a signal including one or more of the first and second code words to a relay equipment (103) for cooperative transmission and the mobile station (105). The first and second words are independent from each other.

Abstract translation: 提供了一种协作通信系统中的数据发送和接收方法。 协作通信系统中的基站的数据发送方法包括：生成用于协作发送的第一码字和用于直接发送到移动台的第二码字（105）; 以及将包括所述第一和第二代码字中的一个或多个的信号发送到用于协作传输的中继设备（103）和所述移动台（105）。 第一个和第二个词彼此独立。