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    • 52. 发明授权
    • Apparatus and method for gating data on a control channel in a CDMA communication system
    • 用于在CDMA通信系统中的控制信道上门控数据的装置和方法
    • US07006482B1
    • 2006-02-28
    • US09677342
    • 2000-10-02
    • Ho-Kyu ChoiChang-Soo ParkSung-Oh HwangHyun-Woo LeeJae-Min AhnYoun-Sun KimHi-Chan MoonSeong-ill Park
    • Ho-Kyu ChoiChang-Soo ParkSung-Oh HwangHyun-Woo LeeJae-Min AhnYoun-Sun KimHi-Chan MoonSeong-ill Park
    • H04B7/216
    • H04W52/56H04B2201/70709H04J13/00H04W52/16H04W52/44H04W52/58
    • A method for transmitting control data on a downlink and/or uplink channel in a base station and/or mobile station in a mobile communication system. In one embodiment, the base station determines whether there is downlink channel data to transmit to a mobile station. If there is no data to be transmitted over the downlink channel for a predetermined time period, the base station drives a random gating position selector to determine a random gating slot position, gates on the control data at the determined slot position, and gates off the control data at other slot positions. The random position selector determines the gating slot position by calculating a value x by multiplying a system frame number (SFN) of a received signal by a specific integer; selecting n bits starting from a position which is at an x-chip distance from the start point of a scrambling code, which has a period equal to one frame, before a plurality of gating durations used in generating a downlink signal; and determining a gating slot position of a corresponding gating slot group by performing a modulo operation on the selected n bits, where the module operation is by the number of slots in a gating slot group.
    • 一种用于在移动通信系统中的基站和/或移动台中的下行链路和/或上行链路信道上发送控制数据的方法。 在一个实施例中,基站确定是否存在要向移动台发送的下行链路信道数据。 如果在预定时间段内没有要通过下行链路信道发送的数据,则基站驱动随机门控位置选择器以确定随机门控时隙位置,在所确定的时隙位置对控制数据进行门控,并关闭 在其他插槽位置控制数据。 随机位置选择器通过将接收信号的系统帧号(SFN)乘以特定整数来计算值x来确定选通时隙位置; 在用于生成下行链路信号的多个选通持续时间之前,从具有周期等于一帧的扰码开始点处的x码片距离的位置开始选择n个比特; 以及通过对所选择的n位执行模运算来确定对应的门控时隙组的门控时隙位置,其中模块操作是通过门控时隙组中的时隙数量。
    • 53. 发明授权
    • Apparatus and method for gated transmission in a CDMA communication system
    • CDMA通信系统中门控传输的装置和方法
    • US06747963B1
    • 2004-06-08
    • US09547886
    • 2000-04-12
    • Chang-Soo ParkJae-Min AhnHyun-Woo Lee
    • Chang-Soo ParkJae-Min AhnHyun-Woo Lee
    • H04B7216
    • H04W52/58H04B1/707H04W28/06H04W52/42H04W52/44H04W52/60H04W72/1273
    • A method and device for gating the transmission of dedicated control channels in a CDMA communication system is disclosed. In the device and method, if a base station (mobile station) determines whether there is no data to transmit to a mobile station (base station) for predetermined period of time, the base station (mobile station) gates transmission of control information according to a predetermined pattern on a dedicated control channel, which channel is used for transmitting control information to the mobile station (base station). Control information transmitted from the base station to the mobile station includes Transport Format Combination Indicator (TFCI), Transmit Power Control (TPC), and a pilot symbol. Control information transmitted from the mobile station to the base station includes TFCI, TPC, a pilot symbol, and FeedBack Information (FBI) for information about a transmit diversity antenna system. In a downlink DPCCH, transmission of the TFCI, TPC and pilot symbol is transmitted discontinuously at every predetermined nth slot out of the total slots of a frame during gated transmission. Alternatively, transmission of the pilot symbol can be transmitted discontinuously at every predetermined nth slot and the TFCI and the TPC at every (n+1)th slot. In an uplink DPCCH, the TFCI, TPC, FBI and pilot symbol are transmitted discontinuously at a specific slot during gated transmission. In addition, the TPC for power control can be continuously transmitted for full rate power control when there is traffic data for transmission.
    • 公开了一种在CDMA通信系统中选通专用控制信道的传输的方法和装置。 在该装置和方法中,如果基站(移动台)在预定时间段内确定是否没有向移动台(基站)发送的数据,则基站(移动台)根据 在专用控制信道上的预定模式,该信道用于向移动台(基站)发送控制信息。 从基站发送到移动台的控制信息包括传输格式组合指示符(TFCI),发射功率控制(TPC)和导频符号。 从移动站发送到基站的控制信息包括用于关于发射分集天线系统的信息的TFCI,TPC,导频符号和反馈信息(FBB)。 在下行链路DPCCH中,在门控传输期间,在帧的总时隙中的每个预定第n个时隙,TFCI,TPC和导频符号的传输是不连续的。 或者,导频符号的传输可以在每个预定的第n个时隙不连续地发送,并且可以在第(n + 1)个时隙发送TFCI和TPC。 在上行链路DPCCH中,在门控发送期间,TFCI,TPC,FBI和导频符号在特定时隙不连续地发送。 另外,当存在用于传输的业务数据时,用于功率控制的TPC可以被连续发送用于全速率功率控制。
    • 57. 发明授权
    • Device and method for generating short PN code in a mobile communication system
    • 在移动通信系统中生成短PN码的装置和方法
    • US06456612B1
    • 2002-09-24
    • US09432866
    • 1999-11-02
    • Jae-Yoel KimHi Chan MoonJae-Min Ahn
    • Jae-Yoel KimHi Chan MoonJae-Min Ahn
    • H04B1500
    • H04J13/0022H03K3/84H04B1/707H04J13/10
    • A short PN code generating device in a mobile communication network having a N× CDMA communication system performing spreading at an N× chip rate using a short PN code of chip length N×2k and a 1× CDMA communication system performing spreading at a 1× chip rate using a short PN code of chip length 2k. The device generates a short PN code such that the N× CDMA communication system can distinguish at least the same number of base stations as the 1× CDMA communication system can distinguish. The device includes a sequence generator for generating an m-sequence having a chip length longer than the chip length N×2k to output an I-component short PN code; and a short PN code generator for switching the generated m-sequence at predetermined chip periods to alternately output the m-sequence as an I-component short PN code and a Q-component short PN code.
    • 一种移动通信网络中的短PN码产生装置,其具有N×CDMA通信系统,其使用码片长度Nx2k的短PN码和1x CDMA通信系统以N×码片速率执行扩频,并且以1x码片速率使用短PN执行扩频 芯片长度2k的代码。 该设备产生一个短的PN码,使得N×CDMA通信系统可以区分至少相同数量的基站,如1x CDMA通信系统可以区分的。 该装置包括用于产生具有比芯片长度Nx2k长的芯片长度的m序列以输出I分量短PN码的序列发生器; 以及短PN码发生器,用于在预定的码片周期切换生成的m序列,以交替地输出m序列作为I分量短PN码和Q分量短PN码。
    • 59. 发明授权
    • Channel estimation apparatus and method
    • 信道估计装置及方法
    • US07158557B2
    • 2007-01-02
    • US10132800
    • 2002-04-25
    • Young-Yong LeeKwang-Seog BaeJae-Min AhnMin-Joong RimHyung-Jin Choi
    • Young-Yong LeeKwang-Seog BaeJae-Min AhnMin-Joong RimHyung-Jin Choi
    • H04B1/707
    • H04W52/228H04B1/707H04B2201/70701H04L25/0232H04W52/08H04W52/223H04W52/225H04W52/58
    • There is provided a channel estimation apparatus for estimating a radio channel environment by multiplying a currently received bit signal of a pilot signal and previously received bit signals by weights, and summing the weighted currently received bit signal and the weighted previously received bit signals in a CDMA mobile communication system receiving the pilot signal comprised of a stream of bits having given bit values, and a power control signal comprised of power control bits. In the channel estimation, a predictor predicts a next bit signal succeeding the currently received bit signal, multiplies the predicted next bit signal by a weight, and generates a weighted next bit signal. A summer sums the weighted next bit signal from the predictor, the weighted currently received bit signal and the previously received bit signals.
    • 提供了一种信道估计装置,用于通过将导频信号的当前接收的比特信号和先前接收的比特信号乘以加权来估计无线电信道环境,并将加权的当前接收的比特信号和加权的先前接收的比特信号相加在CDMA 接收由具有给定位值的比特流组成的导频信号的移动通信系统以及由功率控制比特组成的功率控制信号。 在信道估计中,预测器预测当前接收到的比特信号之后的下一比特信号,将预测的下一比特信号乘以加权,并产生加权的下一比特信号。 加法器将来自预测器的加权的下一位信号,加权的当前接收的位信号和先前接收的位信号相加。
    • 60. 发明授权
    • Apparatus and method for access communication in CDMA communication system
    • CDMA通信系统接入通信的装置及方法
    • US06967935B1
    • 2005-11-22
    • US09641173
    • 2000-08-17
    • Jin-Soo ParkHi-Chan MoonJae-Min Ahn
    • Jin-Soo ParkHi-Chan MoonJae-Min Ahn
    • H04B7/155H04B7/216H04B7/26
    • H04B7/2656
    • A method for performing communication between a base station and a mobile station through a designated channel is disclosed. The method comprises transmitting an access parameter message including fields indicating preamble duration and slot duration having a length of a multiple of given slot duration from the base station to the mobile station, the base station previously knowing each start time point of the slots having the multiple slot duration; transmitting a control message including fields indicating a designated channel number and a data rate from the base station to the mobile station over a common channel; receiving, in the mobile station, the control message and transmitting to the base station an access probe including a preamble having the preamble duration and a succeeding response message beginning at one of the start time points of the slots having the multiple slot duration at the data rate through a designated channel associated with the designated channel number in the control message; and determining in the base station whether the preamble of the access probe is received, beginning at each start time point of the slots having the multiple slot duration.
    • 公开了一种通过指定频道进行基站与移动台之间的通信的方法。 该方法包括:发送包括指示前导持续时间的字段的接入参数消息和具有从基站到移动台的给定时隙持续时间的倍数的时隙持续时间的基站,该基站先前知道具有多个时隙的时隙的每个开始时间点 槽持续时间; 通过公共信道从基站向移动台发送包括表示指定频道号码和数据速率的字段的控制消息; 在所述移动站中接收所述控制消息并向所述基站发送接入探测器,所述接入探测器包括具有所述前同步码持续时间的前同步码和从所述数据具有所述多个时隙持续时间的所述时隙的开始时间点之一开始的后续响应消息 通过与控制消息中的指定频道号相关联的指定频道进行速率; 以及在具有所述多个时隙持续时间的所述时隙的每个起始时间点开始,确定在所述基站中是否接收到所述接入探测器的前导码。