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    • 1. 发明授权
    • Apparatus, methods, and computer program products providing limited use of Zadoff-Chu sequences in pilot or preamble signals
    • 提供Zadoff-Chu序列在导频或前导信号中的有限使用的装置,方法和计算机程序产品
    • US08681750B2
    • 2014-03-25
    • US12083870
    • 2007-12-28
    • Kari HooliJuha S. KorhonenKari PajukoskiEsa Tiirola
    • Kari HooliJuha S. KorhonenKari PajukoskiEsa Tiirola
    • H04B7/216H04J3/00H04W4/00
    • H04L7/041
    • In one, non-limiting exemplary embodiment, a method includes: obtaining a timing uncertainty window parameter; and selecting, using the obtained timing uncertainty window parameter, a preamble sequence including a cyclic shift of a Zadoff-Chu root sequence, wherein the cyclic shift is an allowed cyclic shift from a group of allowed cyclic shifts, wherein the allowed cyclic shifts have timing uncertainty windows with timing uncertainty window elements, wherein the timing uncertainty windows of the allowed cyclic shifts do not overlap with one other or with frequency cyclic shifts of +1 or −1 of the timing uncertainty window elements, and wherein the frequency cyclic shift of −1 of the timing uncertainty window elements of the allowed cyclic shifts does not overlap with the frequency cyclic shift of +1 of the timing uncertainty window elements of other allowed cyclic shifts.
    • 在一个非限制性示例性实施例中,一种方法包括:获得定时不确定性窗参数; 以及使用所获得的定时不确定度窗参数选择包括Zadoff-Chu根序列的循环移位的前导码序列,其中所述循环移位是从允许的循环移位组允许的循环移位,其中所述允许的循环移位具有定时 具有定时不确定性窗口元素的不确定窗口,其中允许的循环移位的定时不确定性窗口不与定时不确定窗口元素的+1或-1的彼此重叠或频率循环移位重叠,并且其中, 允许的循环移位的定时不确定窗口元素中的1个与其他允许的循环移位的定时不确定窗口元素的+1的频率循环移位不重叠。
    • 2. 发明申请
    • Apparatus, Methods, and Computer Program Products Providing Limited Use of Zadoff-Chu Sequences in Pilot or Preamble Signals
    • 提供有限使用Zadoff-Chu序列在先导或前导信号中的装置,方法和计算机程序产品
    • US20100220664A1
    • 2010-09-02
    • US12083870
    • 2007-12-28
    • Kari HooliJuha S. KorhonenKari PajukoskiEsa Tiirola
    • Kari HooliJuha S. KorhonenKari PajukoskiEsa Tiirola
    • H04W72/00
    • H04L7/041
    • In one, non-limiting exemplary embodiment, a method includes: obtaining a timing uncertainty window parameter; and selecting, using the obtained timing uncertainty window parameter, a preamble sequence including a cyclic shift of a Zadoff-Chu root sequence, wherein the cyclic shift is an allowed cyclic shift from a group of allowed cyclic shifts, wherein the allowed cyclic shifts have timing uncertainty windows with timing uncertainty window elements, wherein the timing uncertainty windows of the allowed cyclic shifts do not overlap with one other or with frequency cyclic shifts of +1 or −1 of the timing uncertainty window elements, and wherein the frequency cyclic shift of −1 of the timing uncertainty window elements of the allowed cyclic shifts does not overlap with the frequency cyclic shift of +1 of the timing uncertainty window elements of other allowed cyclic shifts.
    • 在一个非限制性示例性实施例中,一种方法包括:获得定时不确定性窗参数; 以及使用所获得的定时不确定度窗参数选择包括Zadoff-Chu根序列的循环移位的前导码序列,其中所述循环移位是从允许的循环移位组允许的循环移位,其中所述允许的循环移位具有定时 具有定时不确定性窗口元素的不确定窗口,其中允许的循环移位的定时不确定性窗口不与定时不确定窗口元素的+1或-1的彼此重叠或频率循环移位重叠,并且其中, 允许的循环移位的定时不确定窗口元素中的1个与其他允许的循环移位的定时不确定窗口元素的+1的频率循环移位不重叠。
    • 7. 发明申请
    • Coordinated cyclic shift and sequence hopping for Zadoff-Chu, modified Zadoff-Chu, and block-wise spreading sequences
    • Zadoff-Chu,修改Zadoff-Chu和块式扩频序列的协调循环移位和序列跳频
    • US20080298433A1
    • 2008-12-04
    • US12150807
    • 2008-04-30
    • Esa TiirolaKari HooliKari PajukoskiKlaus Hugl
    • Esa TiirolaKari HooliKari PajukoskiKlaus Hugl
    • H04B1/00
    • H04J13/0062H04B7/0413H04J13/0074H04L5/0026H04L5/0051H04L25/0226H04L27/2613H04W72/042
    • A cyclic shift of a reference signal is quantized as a combination of a cell specific cyclic shift with an outcome of a pseudo-random hopping, and an indication of the cell specific cyclic shift is broadcast in the cell. In one embodiment the cyclic shift is quantized as a modulo operation on a sum of the cell specific cyclic shift, the outcome of the pseudo-random hopping, and a user specific cyclic shift, in which case an indication of the user specific cyclic shift is sent in an uplink resource allocation and a user sends its cyclically shifted reference signal in the uplink resource allocated by the uplink resource allocation. The cyclic shift may also be quantized according to length of the reference signal as cyclic_shift_symbol=(cyclic_shift_value*length of the reference signal)/12; where cyclic_shift_value is between zero and eleven and cyclic_shift_symbol is the amount of cyclic shift given in reference signal symbols.
    • 参考信号的循环移位被量化为小区特定循环移位与伪随机跳变的结果的组合,并且在小区中广播小区特定循环移位的指示。 在一个实施例中,循环移位被量化为对小区特定循环移位,伪随机跳跃的结果和用户特定循环移位之和的模运算,在这种情况下,用户特定循环移位的指示是 在上行链路资源分配中发送,并且用户在由上行链路资源分配分配的上行链路资源中发送其循环移位的参考信号。 循环移位也可以根据参考信号的长度量化为cyclic_shift_symbol =(cyclic_shift_value *参考信号的长度)/ 12; 其中,cyclic_shift_value在零和十一之间,而cyclic_shift_symbol是参考信号符号中给出的循环移位量。