Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2005-12-27
2005-12-27
Hudspeth, David (Department: 2681)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S452100, C370S320000
Reexamination Certificate
active
06980807
ABSTRACT:
A path timing detecting method and a base station are provided which can improve the accuracy of detecting the path timings and check an increase in the processing load in the random access in a mobile communications system. First, the method identifies the effective path timing range using a preamble, followed by detecting effective path timings in the identified path timing range at reception of a message, enabling the method to carry out detection of the path timings at accuracy higher than a conventional method that detects the paths using only the preamble. Besides, identifying the searching range at the reception of the preamble makes it possible to reduce the processing load as compared with a method that detects the path timings from the entire searching range corresponding to a cell radius.
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Ishii Minami
Nakamura Takehiro
Hudspeth David
NTT DoCoMo Inc.
Smith Sheila
Workman Nydegger
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