Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system
    3.
    发明授权
    Interleaving apparatus and method for symbol mapping in an HSDPA mobile communication system 有权
    用于HSDPA移动通信系统中符号映射的交织装置和方法

    公开(公告)号:US07200792B2

    公开(公告)日:2007-04-03

    申请号:US10324215

    申请日:2002-12-20

    IPC分类号: H03M13/00 H03M13/03

    摘要: In an apparatus for data transmission in a communication system, a turbo encoder encodes data bits to generate systematic bits and parity bits, and a rate matcher matches the systematic bits and parity bits. A first interleaver writes the rate-matched systematic bits on a row by row basis, and performs inter-column permutation. A second interleaver writes the rate-matched parity bits on a row-by-row basis, and performs inter-column permutation. A modulator alternatively collects the permutated bits on a column by column basis from the first and second interleavers, and maps collected bits from the first and second interleavers onto one modulation symbol, wherein a size of the first interleaver is equal to a size of the second interleaver.

    摘要翻译: 在通信系统中用于数据传输的装置中,turbo编码器对数据位进行编码以产生系统位和奇偶位,并且速率匹配器与系统位和奇偶校验位匹配。 第一交织器逐行地写入速率匹配的系统比特,并执行列间排列。 第二交织器逐行地写入速率匹配的奇偶校验位,并执行列间排列。 调制器从第一和第二交织器交替地收集逐列的置换比特,并将收集的比特从第一和第二交织器映射到一个调制符号,其中第一交织器的大小等于第二交织器的大小 交织器。

    Apparatus and method for transmitting and receiving data in a CDMA mobile communication system
    4.
    发明授权
    Apparatus and method for transmitting and receiving data in a CDMA mobile communication system 有权
    用于在CDMA移动通信系统中发送和接收数据的装置和方法

    公开(公告)号:US07496079B2

    公开(公告)日:2009-02-24

    申请号:US10183824

    申请日:2002-06-27

    IPC分类号: H04B7/216

    摘要: Disclosed is a data transmission/reception apparatus and method for minimizing decoding errors during high-speed packet transmission in a CDMA mobile communication system. When retransmitting data in the Hybrid Automatic Repeat Request (“H-ARQ”) technique, the data transmission/reception apparatus and method performs symbol mapping on coded bits to be retransmitted by allocating different reliabilities to the coded bits according to the number of retransmissions, thus resulting in an improvement of system performance.

    摘要翻译: 公开了一种用于在CDMA移动通信系统中在高速分组传输期间最小化解码错误的数据发送/接收装置和方法。 当在混合自动重复请求(“H-ARQ”)技术中重传数据时,数据发送/接收装置和方法通过根据重发次数向编码比特分配不同的可靠性来对待重传的编码比特执行符号映射, 从而导致系统性能的提高。

    Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system
    6.
    发明授权
    Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system 有权
    用于移动通信系统中的分组重发的发送/接收装置和方法

    公开(公告)号:US07362733B2

    公开(公告)日:2008-04-22

    申请号:US10281719

    申请日:2002-10-28

    IPC分类号: H04B7/216

    摘要: A transmitting/receiving apparatus and method for packet retransmission in a mobile communication system. Upon request for a retransmission from a receiver, a transmitter generates first coded bits by inverting initially transmitted coded bits, generates second coded bits by separating the initially transmitted coded bits into a first bit group having a relatively high priority and a second bit group having a relatively low priority and exchanging the first bit group with the second bit group, and generates third coded bits by inverting the exchanged coded bits. The transmitter selects one of the first coded bits, the second coded bits according to the sequence number of a retransmission request received from the receiver, and the third coded bits and maps the selected coded bits to modulation symbols. The transmitter then transmits the modulation symbols to the receiver.

    摘要翻译: 一种用于移动通信系统中的分组重发的发送/接收装置和方法。 当从接收机请求重传时,发射机通过反转最初发送的编码比特来产生第一编码比特,通过将最初发送的编码比特分离成具有较高优先级的第一比特组,并产生第二编码比特,产生第二编码比特 相对较低的优先级并且与第二比特组交换第一比特组,并且通过反转交换的编码比特来生成第三编码比特。 发射机根据从接收机接收的重传请求的序列号和第三编码比特选择第一编码比特中的第一编码比特,并将所选择的编码比特映射到调制符号。 然后,发射机将调制符号发送到接收机。

    Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system
    7.
    发明授权
    Transmitting/receiving apparatus and method for packet retransmission in a mobile communication system 有权
    用于移动通信系统中的分组重发的发送/接收装置和方法

    公开(公告)号:US07573852B2

    公开(公告)日:2009-08-11

    申请号:US10271277

    申请日:2002-10-15

    IPC分类号: H04B7/216 H04J11/00

    摘要: A transmitting/receiving apparatus and method for packet retransmission in a mobile communication system. Upon request for a retransmission from a receiver, a transmitter inverts initially transmitted coded bits if the retransmission is odd-numbered for the same data, modulates the inverted bits, and transmits the modulated bits to the receiver. Then the receiver recovers the coded bits by demodulation. If the coded bits are retransmitted an odd number of times, the receiver decodes the coded bits after inversion. Thus the error probabilities of initial transmission bits and retransmission bits are averaged in effect and decoding performance is improved.

    摘要翻译: 一种用于移动通信系统中的分组重发的发送/接收装置和方法。 如果对于相同的数据重传是奇数编号的,则在从接收机请求重传时,发射机反转最初发送的编码比特,调制反向比特,并将调制比特发送给接收机。 然后接收机通过解调恢复编码位。 如果编码比特重发奇数次,则接收机在反转后解码编码比特。 因此,初始传输比特和重传比特的误差概率有效地被平均化,并且提高了解码性能。

    Apparatus and method for performing adaptive channel estimation in a mobile communication system
    8.
    发明授权
    Apparatus and method for performing adaptive channel estimation in a mobile communication system 有权
    一种用于在移动通信系统中执行自适应信道估计的装置和方法

    公开(公告)号:US07376210B2

    公开(公告)日:2008-05-20

    申请号:US10614078

    申请日:2003-07-08

    IPC分类号: H04B1/10

    摘要: Disclosed is an adaptive channel estimator for improving a performance of a general channel estimator in a mobile communication system, and a method for controlling the same. The adaptive channel estimator further detects a noise level of a channel and a channel speed, and implements an optimum noise elimination filter on the basis of the detected noise level and channel speed. A comparison between mapping degrees predetermined by the detected noise level and channel speed allows an optimum noise elimination filter to be implemented, If such a channel estimator is implemented, then optimum packet data transmission is available for not only a low-speed channel but also a high-speed channel. A channel compensation caused by a difference between a spreading factor (SF) of a pilot channel and a spreading factor (SF) of a data channel can be compensated on the condition that a slope compensator executed by a SF ratio is controlled by a filter coefficient controller.

    摘要翻译: 公开了一种用于改善移动通信系统中的通用信道估计器的性能的自适应信道估计器及其控制方法。 自适应信道估计器还检测信道的噪声电平和信道速度,并且基于检测到的噪声电平和信道速度来实现最佳噪声消除滤波器。 通过检测到的噪声电平和通道速度预定的映射度之间的比较允许实现最佳噪声消除滤波器。如果实现了这种信道估计器,则最佳分组数据传输不仅可用于低速信道,而且可用于低速信道 高速通道。 由导频信道的扩展因子(SF)与数据信道的扩展因子(SF)之间的差导致的信道补偿可以在由SF比执行的斜率补偿器由滤波器系数 控制器。

    Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system
    9.
    发明授权
    Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system 有权
    用于检测移动通信系统中的业务信道和导频信道之间的功率比的装置和方法

    公开(公告)号:US07339983B2

    公开(公告)日:2008-03-04

    申请号:US10630842

    申请日:2003-07-31

    IPC分类号: H04B3/46 H04B17/00 H04B1/707

    CPC分类号: H04W52/16 H04W52/262

    摘要: An apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system. The apparatus is operable to generate a second signal by performing channel estimation using a second channel signal, and generate a first signal by channel-compensating the first channel signal using the second signal. The apparatus is further operable to generate absolute values of symbols constituting the first signal, select absolute values in a predetermined length after sorting the absolute values in magnitude order, calculate an average value of the selected absolute values, calculate a square of an absolute value of the second signal, and generate the power ratio using a ratio of the average value to the square of the absolute value of the second signal.

    摘要翻译: 一种在移动通信系统中检测业务信道与导频信道之间的功率比的装置和方法。 该装置可操作以通过使用第二信道信号执行信道估计来产生第二信号,并且通过使用第二信号对信道补偿第一信道信号产生第一信号。 该装置进一步可操作地产生构成第一信号的符号的绝对值,在按照大小顺序对绝对值进行排序之后选择预定长度的绝对值,计算所选绝对值的平均值,计算绝对值的平方值 第二信号,并且使用平均值与第二信号的绝对值的平方值的比率来产生功率比。