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    • 1. 发明申请
    • APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT FOR DETECTING NON-SYNCHRONIZED RANDOM ACCESS CHANNEL PREAMBLE
    • 用于检测非同步随机访问信道的装置,方法和计算机程序产品序言
    • WO2008084381A1
    • 2008-07-17
    • PCT/IB2008/000037
    • 2008-01-09
    • NOKIA CORPORATIONNOKIA, INC.HOOLI, KariKORHONEN, Juha S.PAJUKOSKI, KariTIIROLA, Esa
    • HOOLI, KariKORHONEN, Juha S.PAJUKOSKI, KariTIIROLA, Esa
    • H04B1/707
    • H04B1/708H04B1/70753H04B1/70755H04L7/042
    • A detect decision is made by non-coherently combining results from correlating a preamble (CAZAC) sequence with base/root sequences used in the cell and setting a detection threshold based on those combined results. Another threshold can be set based on coherently combining results from correlating the preamble sequence, in which case the detect decision is based on satisfying either one of the thresholds. Where the sequence repeats in the same preamble, the results that are combined are from correlating the first instance of the CAZAC sequence and from correlating the second instance of the CAZAC sequence. Where the sequence does not repeat, different segments of the CAZAC sequence, each less than the whole and not necessarily of the same length, are correlated for a partial correlation on each segment, then the segments are combined and used to set the detection threshold. Detection may be done in stages, adjusting the threshold after the first stage based on comparing the results of non-coherent and coherent combining.
    • 通过将前导码(CAZAC)序列与在该小区中使用的基本/根序列进行相关的结果非相干地组合并根据这些组合结果设置检测阈值来进行检测判定。 可以基于相关地组合前导序列的相关结果来设置另一个阈值,在这种情况下,检测决策基于满足任一个阈值。 在序列在同一个前导码中重复的地方,结合的结果来自CAZAC序列的第一个实例和CAZAC序列的第二个实例的相关。 在序列不重复的情况下,CAZAC序列的不同片段(每个片段小于整个片段并且不一定具有相同长度)在每个片段上相互关联用于部分相关,然后片段被组合并用于设置检测阈值。 可以分阶段完成检测,基于比较非相干和相干组合的结果在第一阶段之后调整阈值。
    • 8. 发明申请
    • APPARATUS, METHOD AND COMPUTER PROGRAM PRODUCT PROVIDING A TRANSPORT FORMAT THAT IS COMPATIBLE WITH ANOTHER TRANSPORT FORMAT THAT USES SPREADING CODES
    • 提供运输格式的装置,方法和计算机程序产品,与使用扩展代码的另一种运输格式相容
    • WO2007091157A2
    • 2007-08-16
    • PCT/IB2007/000299
    • 2007-02-08
    • NOKIA CORPORATIONNOKIA, INC.TIIROLA, EsaPAJUKOSKI, Kari
    • TIIROLA, EsaPAJUKOSKI, Kari
    • H04B1/707
    • H04B1/707H04B1/69H04J13/00H04J13/0048
    • Either a first transport format or a second transport format is selected to transmit information corresponding to an input symbol sequence. The transport formats fit information into a timeslot having a predetermined duration. Based upon the selected transport format, either the information is created from the input symbol sequence using the first transport format or is created from the input symbol sequence using the second transport format. Creating the information for transmission using the first transport format applies a spreading code to the input symbol sequence. The information for transmission is transmitted in a selected timeslot having the predetermined duration. Creating and transmitting the information using the first transport format causes the transmitted information to occupy a first frequency band. Creating and transmitting the information using the second transport format causes the transmitted information to occupy a second frequency band that partially overlaps the first frequency band.
    • 选择第一传输格式或第二传输格式以发送对应于输入符号序列的信息。 传输格式将信息合并到具有预定持续时间的时隙中。 基于所选择的传输格式,使用第一传输格式从输入符号序列创建信息,或者使用第二传输格式从输入符号序列创建信息。 使用第一传输格式创建要传输的信息将扩展码应用于输入符号序列。 用于发送的信息在具有预定持续时间的选定时隙中发送。 使用第一传输格式创建和发送信息使得发送的信息占据第一频带。 使用第二传输格式创建和发送信息使得发送的信息占据与第一频带部分重叠的第二频带。