Title:
移動通信システムのパスタイミング検出方法および基地局装置
Document Type and Number:
Japanese Patent JP3554240
Kind Code:
B2
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 (A), followed by detecting effective path timings in the identified path timing range at reception of a message (C), 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 (A) 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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Inventors:
Minami Ishii
Takehiro Nakamura
Takehiro Nakamura
Application Number:
JP37574199A
Publication Date:
August 18, 2004
Filing Date:
December 28, 1999
Export Citation:
Assignee:
NTT DoCoMo, Inc.
International Classes:
H04B1/707; H04B1/7117; H04B7/26; H04B7/14; H04W28/00; H04W56/00; H04W74/08; (IPC1-7): H04B1/707; H04B7/26; H04Q7/38
Domestic Patent References:
| JP11251993A |
Foreign References:
| WO1999065157A1 |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Denichi Hashimoto
Kazuo Abe
Denichi Hashimoto