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公开(公告)号：JP2001211144A
公开(公告)日：2001-08-03
申请号：JP2000367738
申请日：2000-12-01
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： KIM TAE-JOONG , KIM JUNG-IM , KIM JAE-HEUNG , BANG SEUNG-CHAN
Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for repetitive transmission and reception for physical layer channel coding which transmit a channel-coded signal at a position where maximum time diversity can be secured when a signal after non-memory error correction channel coding is repeatedly transmitted. SOLUTION: This repetitive transmission and reception device for non- memory error correction channel coding performs non-memory error correction channel coding for information to be sent, repeats a channel-coded signal, positions the repeated signal at a position where maximum time diversity can be secured, and then sends the positioned signal. This invention is usable for the repetitive transmission and reception of a signal after non-memory error correction channel coding.
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公开(公告)号：WO2007024095A3
公开(公告)日：2007-12-13
申请号：PCT/KR2006003309
申请日：2006-08-23
Applicant: KOREA ELECTRONICS TELECOMM , KIM JAE-HEUNG , RYU BYUNG-HAN , BANG SEUNG-CHAN
Inventor： KIM JAE-HEUNG , RYU BYUNG-HAN , BANG SEUNG-CHAN
CPC classification number: H04W52/0216 , H04W68/00 , Y02D70/00 , Y02D70/1242 , Y02D70/24
Abstract: In a cellar system providing various packet services, sleep mode operation of a terminal in an idle state is controlled. The cellular system determines a discontinuous receiving (DRX) period according to a QoS of a packet service provided to the terminal, and runs the sleep mode according to the determined DRX period. The cellular system runs the sleep mode divided into shallow sleep duration and deep sleep duration. With this manner, a paging delay to the terminal and a power consumption of the terminal may be reduced.
Abstract translation: 在提供各种分组业务的地窖系统中，控制处于空闲状态的终端的睡眠模式操作。 蜂窝系统根据提供给终端的分组业务的QoS确定不连续接收（DRX）周期，并根据所确定的DRX周期运行睡眠模式。 蜂窝系统运行睡眠模式，分为浅睡眠持续时间和深睡眠持续时间。 通过这种方式，可以减少终端的寻呼延迟和终端的功耗。
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3.发明申请
公开(公告)号：WO2009020376A8
公开(公告)日：2010-03-25
申请号：PCT/KR2008004645
申请日：2008-08-08
Applicant: KOREA ELECTRONICS TELECOMM , SAMSUNG ELECTRONICS CO LTD , 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: 提供了在多个终端在时域和频域中共同使用资源的无线通信系统中形成信号的方法。 该方法包括将待发送的信号乘以与要发送到基站的第一时隙中的对应于第一循环移位索引的频域正交码符号，其中乘法由第一终端和第二终端执行; 以及在第二时隙中将要发送的频率乘以与要发送的第一时隙的第一循环索引不同的第二循环索引的频域正交码符号发送到第二时隙，其中，乘法由 第一终端和第二终端。
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4.发明申请
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。
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5.发明申请DOWNLINK RECEPTION INDICATION METHOD IN PACKET BASED MOBILE COMMUNICATION SYSTEM 审中-公开基于分组的移动通信系统中的下行接收指示方法
公开(公告)号：WO2008153365A3
公开(公告)日：2009-02-19
申请号：PCT/KR2008003370
申请日：2008-06-16
Applicant: KOREA ELECTRONICS TELECOMM , KIM JAE-HEUNG , LEE KYOUNG-SEOK , KIM JUNG-IM , RYU BYUNG-HAN , BANG SEUNG-CHAN
Inventor： KIM JAE-HEUNG , LEE KYOUNG-SEOK , KIM JUNG-IM , RYU BYUNG-HAN , BANG SEUNG-CHAN
CPC classification number: H04W76/048 , H04W56/0005 , H04W74/00
Abstract: Provided is a method for indicating a mobile station maintaining radio resource control (RRC) connection but not maintaining uplink physical layer synchronization to receive downlink signals when packet data to be transmitted to the mobile station are generated to thereby make the mobile station start uplink signal transmission. The method includes: (a) allocating a random access preamble index and generating a downlink signal reception indication message including the allocated random access preamble index in a base station; (b) transmitting the generated downlink signal reception indication message to the mobile station; (c) forming a response message to random access, when a preamble signal designated by the random access preamble index is transmitted from the mobile station in response to the downlink signal reception indication message; and (d) transmitting the response message to random access to the mobile station to thereby control uplink physical layer synchronization.
Abstract translation: 提供了一种用于指示移动台维持无线电资源控制（RRC）连接但不保持上行链路物理层同步以在发送到移动台的分组数据被生成以接收下行链路信号的方法，从而使得移动站启动上行链路信号传输 。 该方法包括：（a）分配随机接入前导索引，并在基站中产生包括所分配的随机接入前导码索引的下行链路信号接收指示消息; （b）向移动台发送所生成的下行链路信号接收指示消息; （c）响应于所述下行链路信号接收指示消息从所述移动台发送由所述随机接入前导码索引指定的前导信号时，形成随机接入的响应消息; 和（d）将所述响应消息发送到对所述移动站的随机接入，从而控制上行链路物理层同步。
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Patent Agency Ranking
公开(公告)号：WO2007081173A3
公开(公告)日：2008-09-25
申请号：PCT/KR2007000218
申请日：2007-01-12
Applicant: KOREA ELECTRONICS TELECOMM , KIM NAM-IL , KIM IL-GYU , JWA HYE-KYUNG , KIM YOUNG-HOON , BANG SEUNG-CHAN
Inventor： KIM NAM-IL , KIM IL-GYU , JWA HYE-KYUNG , KIM YOUNG-HOON , BANG SEUNG-CHAN
IPC: H04J11/00
CPC classification number: H04L27/2621
Abstract: The present invention provides an OFDM symbol generating apparatus. The OFDM symbol generating apparatus generates a plurality of weight-applied symbol groups by applying a plurality of weights to a digital modulation symbol group, and generates a plurality of IFFT symbol groups by performing an IFFT operation on the plurality of weight-applied symbol groups. Subsequently, an IFFT symbol group having the minimum PAPR is selected from among the plurality of IFFT symbol groups such that a characteristic of a PAPR can be improved without reducing data transmission speed.
Abstract translation: 本发明提供一种OFDM符号生成装置。 OFDM符号生成装置通过对数字调制符号组应用多个权重来生成多个加权的符号组，并通过对多个加权符号组进行IFFT运算来生成多个IFFT符号组。 随后，从多个IFFT符号组中选择具有最小PAPR的IFFT符号组，使得可以在不降低数据传输速度的情况下提高PAPR的特性。
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7.发明申请TDM BASED CELL SEARCH METHOD IN OFDM CELLULAR SYSTEM, FRAME TRANSMISSION METHOD THEREOF AND SYSTEM THEREOF 审中-公开OFDM蜂窝系统中的基于TDM的小区搜索方法，其帧传输方法及其系统
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。
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公开(公告)号：WO2007066982A3
公开(公告)日：2007-09-27
申请号：PCT/KR2006005254
申请日：2006-12-06
Applicant: KOREA ELECTRONICS TELECOMM , KIM JUNG-IM , RYU BYUNG-HAN , BANG SEUNG-CHAN
Inventor： KIM JUNG-IM , RYU BYUNG-HAN , BANG SEUNG-CHAN
CPC classification number: H04W74/0841 , H04J13/00 , H04W74/0866
Abstract: The present invention relates to a wireless communication system that counts UEs using an MBMS, and a method thereof. The wireless communication system is connected with a UE through a radio link, and includes a Node B and a controlling radio network controller (CRNC). The Node B receives sequence setting information on a sequence included in a preamble transmitted from the UE from a network manager. The CRNC controls the Node B, detects a sequence according to whether to use an MBMS based on the sequence setting information, and performs a counting process for counting UEs based on whether the UE uses the MBMS. According to the present invention, counting of UEs using an MBMS can be efficiently performed by using a predetermined sequence. Particularly, the counting process can be simplified by reducing complexity in access probability management of a network manager, thereby increasing efficiency in data transmission by reducing signaling for random access probability and omitting a random access probability calculation process.
Abstract translation: 本发明涉及一种使用MBMS对UE进行计数的无线通信系统及其方法。 无线通信系统通过无线链路与UE连接，包括Node B和控制无线网络控制器（CRNC）。 节点B从网络管理器接收关于从UE发送的前导码中包括的序列的序列设置信息。 CRNC控制节点B，基于序列设置信息根据是否使用MBMS来检测序列，并且基于UE是否使用MBMS来执行用于对UE进行计数的计数处理。 根据本发明，通过使用预定序列可以高效地执行使用MBMS的UE的计数。 特别是，通过降低网络管理器的接入概率管理的复杂度，可以简化计数过程，从而通过减少随机接入概率的信令并省略随机接入概率计算过程来提高数据传输的效率。
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公开(公告)号：ES2371719T3
公开(公告)日：2012-01-09
申请号：ES06835368
申请日：2006-12-22
Applicant: KOREA ELECTRONICS TELECOMM , SK TELECOM CO LTD , KT FREETEL CO LTD
Inventor： KIM JAE-HEUNG , RYU BYUNG-HAN , BANG SEUNG-CHAN
Abstract: Método para una operación de recepción discontinua de un terminal (9) en un sistema de comunicación inalámbrica, que comprende: recibir en el terminal (9), en un estado (3) en el que el terminal (9) ha establecido un canal de datos para transmitir/recibir datos desde/hasta una estación (7) base, parámetros para realizar la operación de recepción discontinua desde la estación (7) base; y realizar en el terminal (9) la operación de recepción discontinua basada en los parámetros recibidos, en el que los mensajes procedentes de la estación (7) base se monitorizan de manera discontinua según un ciclo de recepción discontinua.
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公开(公告)号：GB2379143A
公开(公告)日：2003-02-26
申请号：GB0128266
申请日：2001-11-26
Applicant: KOREA ELECTRONICS TELECOMM
Inventor： HWANG KYU-JONG , BANG SEUNG-CHAN
Abstract: In a method for calculating the soft bit values for decoding bits in a communication system for encoding the bits and using gray coding to perform M-ary modulations, the soft bit values of a received signal are calculated based on the shortest distance between the received signal, a phase distortion of which having been compensated, and a boundary line for distinguishing '0' and '1' decision regions. According to the present invention, the computation volume for calculating the soft bit values is greatly reduced and the cost for implementing corresponding hardware is decreased. Also, when a plurality of boundary lines is provided, the soft bit values are calculated by symmetric movements, and the corresponding calculation complexity is greatly reduced.
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