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    • 8. 发明专利
    • Method for setting cyclic shift in consideration of frequency offset
    • 用于设置考虑频率偏移的循环移位的方法
    • JP2013102497A
    • 2013-05-23
    • JP2013001208
    • 2013-01-08
    • Lg Electronics Incエルジー エレクトロニクス インコーポレイティド
    • HAN SEUNG HEENOH MIN SEOKKWON YEONG HYEONLEE HYUNG-WOOKIM DONG CHEOLKWAK JIN SAMDRAGAN VUJCIC
    • H04J13/18
    • H04L27/2607H04J13/0062H04J13/0074H04J13/22H04L27/2613H04L27/2657
    • PROBLEM TO BE SOLVED: To provide a method for setting a cyclic shift sequence to a frequency offset.SOLUTION: One embodiment of the present invention includes processes of calculating distance between alias channel response positions of sequences to be generated by the channel response positions of the sequences and frequency offsets, calculating the number of cyclic shifts for every group constituting the sequences by sections of the calculated distance, and setting cyclic shift application sections. Even when an input signal is shifted by channel delay diffusion and radiowave delay, the cyclic shift application sections are set by a simple method at positions which do not overlap each other in consideration of channel responses of reception sequences and positions of aliases of the reception sequences to sharply reduce detection errors and erroneous alarm ratio by the frequency offsets. When the sequences to which the cyclic shifts are applied are allocated to cells whose frequency offsets are at a predetermined level or higher, influences of the frequency offsets are minimized in high mobility cells.
    • 要解决的问题:提供一种将循环移位序列设置为频率偏移的方法。 解决方案:本发明的一个实施例包括计算由序列的信道响应位置和频率偏移产生的序列的别名信道响应位置之间的距离的处理,计算构成序列的每个组的循环移位次数 按计算距离的各部分,以及设置循环移位应用部分。 即使当输入信号被信道延迟扩散和无线电波延迟移位时,考虑到接收序列的信道响应和接收序列的别名的位置,在不相互重叠的位置处,通过简单的方法来设置循环移位应用部分 通过频率偏移大幅降低检测误差和误报率。 当将应用了循环移位的序列分配给频率偏移处于预定电平以上的小区时,高移动性小区中的频率偏移的影响被最小化。 版权所有(C)2013,JPO&INPIT
    • 9. 发明专利
    • Method for setting cyclic shift considering frequency offset
    • 设定考虑频率偏移的循环移位的方法
    • JP2013070435A
    • 2013-04-18
    • JP2013001215
    • 2013-01-08
    • Lg Electronics Incエルジー エレクトロニクス インコーポレイティド
    • HAN SEUNG HEENOH MIN SEOKKWON YEONG HYEONLEE HYUNG-WOOKIM DONG CHEOLKWAK JIN SAMDRAGAN VUJCIC
    • H04J13/14
    • H04L27/2607H04J13/0062H04J13/0074H04J13/22H04L27/2613H04L27/2657
    • PROBLEM TO BE SOLVED: To provide a method for setting a cyclic shift sequence to a frequency offset.SOLUTION: One embodiment of the present invention includes the processes of calculating a distance between a channel response position of a sequence and an alias channel response position of the sequence caused by a frequency offset, calculating the number of cyclic shifts per group constituting the sequence according to an interval of the calculated distance, and setting a cyclic shift applying interval. Even when a reception signal is shifted by channel delay spreading or radio wave delay, the cyclic shift applying interval is set by an easy method at a position not overlapping with each other in consideration of a channel response of a reception sequence and an alias position of the reception sequence, so that detection errors and a false alarm rate due to the frequency offset are greatly reduced. When a sequence to apply the cyclic shift is allocated to a cell having the frequency offset at or above a prescribed level, influence of the frequency offset on a high-mobility cell can be minimized.
    • 要解决的问题:提供一种将循环移位序列设置为频率偏移的方法。 解决方案:本发明的一个实施例包括计算序列的信道响应位置和由频率偏移引起的序列的别名信道响应位置之间的距离的处理,计算每组的循环移位数 根据计算出的距离的间隔的顺序,并设定循环移位施加间隔。 即使当通过信道延迟扩展或无线电波延迟来移动接收信号时,考虑到接收序列的信道响应和接收序列的别名位置,通过简单的方法在不重叠的位置处设置循环移位应用间隔 接收序列,使得由于频率偏移引起的检测误差和误报率大大降低。 当将应用循环移位的序列分配给具有等于或高于规定水平的频率偏移的单元时,频率偏移对高迁移率单元的影响可以最小化。 版权所有(C)2013,JPO&INPIT