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    • 12. 发明授权
    • Method and device for transmitting packet data in mobile communication system
    • 用于在移动通信系统中发送分组数据的方法和装置
    • US07366272B2
    • 2008-04-29
    • US09986210
    • 2001-10-22
    • Min-Goo KimSang-Hyuck Ha
    • Min-Goo KimSang-Hyuck Ha
    • H04L23/00H04L27/00H03M13/03
    • H04L1/0083H04L1/0069H04L1/0071H04L1/1819H04L1/1845H04L1/1867
    • There is provided a device and method for transmitting packet data in a mobile communication system. A sub-code generator generates a plurality of sub-codes with the same or different code rates for the input of a PLP (Physical Layer Packet) information bit stream. A controller determines a minimum data rate by which the number of the modulation symbols of a sub-code generated by a predetermined modulation method is equal to or greater than the number of transmittable modulation symbols for each time period. A symbol pruner prunes part of the modulation symbols of the sub-code to make the number of the modulation symbols of the sub-code equal to the number of transmittable modulation symbols for the time period, if the number of the modulation symbols of the sub-code is greater than the number of transmittable modulation symbols for the time period.
    • 提供了一种用于在移动通信系统中发送分组数据的设备和方法。 子代码生成器产生用于输入PLP(物理层分组)信息比特流的相同或不同代码率的多个子代码。 控制器确定通过预定调制方法生成的子码的调制符号的数量等于或大于每个时间段的可发送调制符号的数量的最小数据速率。 符号修剪器修剪子代码的调制符号的一部分,以使子码的调制符号的数量等于该时间段的可发送调制符号的数量,如果子信道的调制符号的数目 -code大于该时间段的可传输调制符号的数量。
    • 16. 发明授权
    • Method and apparatus for controlling turbo decoder input
    • 用于控制turbo解码器输入的方法和装置
    • US07505535B2
    • 2009-03-17
    • US10718816
    • 2003-11-24
    • Sang-Hyuck HaNam-Yul YuMin-Goo Kim
    • Sang-Hyuck HaNam-Yul YuMin-Goo Kim
    • H03D1/00
    • H04L1/0059H03M13/2771H03M13/2957H03M13/6566H04L1/0066H04L1/0071
    • A method and apparatus for effectively controlling data input to a turbo decoder for decoding forward packet data traffic in a 1xEV-DV mobile station (MS) are disclosed. After received code symbols are stored in one of several memories and read in deinterleaving order, read addresses and chip select signals are generated for the memories based on encoder packet size in synchronization to a decoder clock signal. The decoding starts by inputting a predetermined number of code symbols to the turbo decoder in an appropriate order. The decoder input apparatus reads demodulated forward packet data from decoder input buffers in an appropriate order using the read addresses and chip select signals to generate turbo decoder input data in an appropriate form. Thus, a small-size, low-cost, low-power consumption MS is achieved by processing channel-interleaved data at high speed and with reduced process delay and providing them to a decoder.
    • 公开了一种用于有效地控制输入到turbo解码器的数据的方法和装置,用于解码1xEV-DV移动台(MS)中的前向分组数据业务。 在接收到的代码符号被存储在几个存储器中的一个并以解交错顺序读取时,基于与解码器时钟信号同步的编码器分组大小,为存储器生成读取地址和片选信号。 通过以适当的顺序向turbo解码器输入预定数量的码符号开始解码。 解码器输入装置使用读取的地址和芯片选择信号以适当的顺序从解码器输入缓冲器读取解调的前向分组数据,以适当的形式产生turbo解码器输入数据。 因此,通过以高速和减少的处理延迟处理信道交错数据并将其提供给解码器来实现小尺寸,低成本,低功耗的MS。
    • 17. 发明授权
    • Method and apparatus for determining modulation scheme for retransmission in a communication system
    • 用于确定通信系统中重传的调制方案的方法和装置
    • US07133462B2
    • 2006-11-07
    • US10300476
    • 2002-11-20
    • Sang-Hyuck HaMin-Goo Kim
    • Sang-Hyuck HaMin-Goo Kim
    • H04L27/04H04L27/12H04L27/20H04L27/36H03K7/10H04B7/14H04B1/02
    • H04L1/1867H04L1/0003
    • A method and apparatus for determining an optimum modulation scheme for a retransmission in a communication system supporting HARQ. When two modulation schemes are available, at an initial transmission, information is modulated in the lower-order modulation scheme if a first MPR is less than a first threshold, and in the higher-order modulation scheme if the first MPR is greater than or equal to the first threshold. Here, an MPR is determined by an EP size, the number of available Walsh codes, and the number of slots per sub-packet that are used for a transmission. To select one of the modulation schemes for a retransmission, a second MPR is calculated using an EP size, the number of available Walsh codes, and the number of slots per sub-packet that are used for the retransmission. If the first MPR is equal to or less than a second threshold greater than the first threshold, the lower-order modulation scheme is selected. If the second MPR is greater than the second threshold, the higher-order modulation scheme is selected.
    • 一种在支持HARQ的通信系统中确定用于重传的最佳调制方案的方法和装置。 当两个调制方案可用时,在初始传输时,如果第一MPR小于第一阈值,则在低阶调制方案中调制信息,如果第一MPR大于或等于 到第一个阈值。 这里,MPR由EP大小,可用沃尔什码的数量和用于传输的每个子分组的时隙数确定。 为了选择用于重传的调制方案之一,使用EP大小,可用沃尔什码的数量和用于重传的每个子分组的时隙数来计算第二MPR。 如果第一MPR等于或小于大于第一阈值的第二阈值,则选择低阶调制方案。 如果第二MPR大于第二阈值,则选择较高阶调制方案。
    • 19. 发明授权
    • Demodulation apparatus and method in a communication system employing 8-ary PSK modulation
    • 采用8进制PSK调制的通信系统中的解调装置和方法
    • US07072426B2
    • 2006-07-04
    • US10218918
    • 2002-08-14
    • Sang-Hyuck HaMin-Goo Kim
    • Sang-Hyuck HaMin-Goo Kim
    • H04L27/22
    • H04L25/067H04L27/22
    • An 8-ary PSK demodulation apparatus for receiving an input signal Rk(Xk, Yk) comprised of a kth quadrature-phase component Yk and a kth in-phase component Xk, and for generating soft decision values Λ(sk,0), Λ(sk,1), and Λ(sk,2) for the input signal Rk(Xk, Yk) by a soft decision means. A calculator calculates Zk by subtracting a level |Yk| of the quadrature-phase signal component Yk from a level |Xk| of the in-phase signal component Xk, and outputs the Zk as a first soft decision value. A first selector selects the Zk or reverse −Zk, according to an MSB of the quadrature-phase signal component Yk. A second selector selects the Zk or the reverse −Zk according to an MSB of the in-phase signal component Xk. A third selector selects an output of the second selector or a value “0” according to an MSB of the Zk. A first adder adds √{square root over (2)}Yk to an output of the third selector, and outputs the result value as a third soft decision value. A fourth selector selects an output of the second selector or a value “0” according to the MSB of the Zk. A second adder adds √{square root over (2)}Xk to an output of the fourth selector, and outputs the result value as a second soft decision value.
    • 一种用于接收包含ak第二个输入信号的输入信号R k(X k,Y k k)的8元PSK解调装置, / SUP>正交相位分量Y k和/或同相分量X k k的同步分量,并且用于产生软判决值λ(s < SUB(k,0),Lambda(s,k,1)和Lambda(s,k,2),用于输入信号R k 通过软判定装置来执行(X&lt; k&gt;,Y&lt; k&gt;)。 一个计算器通过减去一个水平| Y | k N |来计算Z N 的从正交相位信号分量Y N k的正交相位信号分量Y 的同相信号分量X N k,并且将Z N k作为第一软判决值输出。 第一选择器根据正交相位信号分量Y N k的MSB来选择Z 或反向-Z 。 第二选择器根据同相信号分量X SUB的MSB来选择Z SUB或反向-Z SUB k。 第三选择器根据Z 的MSB选择第二选择器的输出或值“0”。 第一加法器将√(平方根)加到第二选择器的输出上,并输出结果值作为第三软判决值,第四选择器选择第二选择器的输出或 第二加法器将第二加法器向第四选择器的输出添加√{平方根(2X> k ),并输出 结果值作为第二软判决值。
    • 20. 发明授权
    • Apparatus and method for calculating soft decision value input to channel decoder in a data communication system
    • 用于计算软判决值输入到数据通信系统中的信道解码器的装置和方法
    • US07042954B2
    • 2006-05-09
    • US10244598
    • 2002-09-17
    • Sang-Hyuck HaMin-Goo Kim
    • Sang-Hyuck HaMin-Goo Kim
    • H04L5/12H04L23/02
    • H04L27/38H04L25/067
    • A 64-ary QAM (Quadrature Amplitude Modulation) demodulation apparatus and method for receiving an input signal Rk(Xk,Yk) comprised of a kth quadrature-phase signal Yk and a kth in-phase signal Xk, and generating soft decision values Λ(sk,5), Λ(sk,4), Λ(sk,3), Λ(sk,2), Λ(sk,1) and Λ(sk,0) for the input signal Rk(Xk, Yk) are disclosed. A first soft decision value generator receives the quadrature-phase signal Yk of the received signal Rk and a distance value 2a between six demodulated symbols on the same axis, and generates soft decision values Λ(sk,5), Λ(sk,4) and Λ(sk,3) for sixth, fifth, and fourth demodulated symbols. A second soft decision value generator receives the in-phase signal Xk of the received signal Rk and the distance value 2a between the six demodulated symbols on the same axis, and generates soft decision values Λ(sk,2), Λ(sk,1) and Λ(sk,0) for third, second and first demodulated symbol.
    • 包括一个64进制QAM(正交幅度调制)解调装置和方法,用于接收输入信号R SUB(X SUB,Y),k) 的正交相位信号Y k1和ak 同相信号X N k,并产生软的 决策值Lambda(s,k,5),λ(s,k,4),λ(s,k,3),λ(s (k,2),Lambda(s,k,1)和Lambda(s,k,0)对于输入信号R k 公开了(X> k,Y> k)。 第一软判决值生成器接收相同轴上的六个解调符号之间的接收信号R SUB k的正交相位信号Yα和距离值2a, 第六个软判决值Lambda(s,k,5),λ(s,k,4)和λ(s,k,3) 第五和第四解调符号。 第二软判决值生成器接收同一信号R SUB的同相信号X SUB和相同轴上六个解调符号之间的距离值2a,以及 生成第三个软判决值Lambda(s,k,2),Lambda(s,k,1)和λ(s,k,0) ,第二和第一解调符号。