Aligning radio base station node transmission timing on...

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Reexamination Certificate

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Details

C455S103000, C370S328000

Reexamination Certificate

active

07729727

ABSTRACT:
A radio base station node (20) of a telecommunications network comprises a baseband transmitter (22) and plural radio frequency (RF) paths (24) between the baseband transmitter (22) and an antenna system (30). A measurement entity (32) is provided, preferably near the antenna system (30), for making a measurement or comparison of a time of detecting of a power modulation for each of plural RF transmission paths (24), e.g., a time of detecting of a power modulation for a first of the plural RF transmission paths and a time of detection of a power modulation for a second of the plural RF transmission paths. A transmission timing adjustment unit (34) uses the power modulation measurement or comparison for adjusting timing of transmission of signals for the plural RF transmission paths for obtaining a desired time alignment for the plural RF transmission paths.

REFERENCES:
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patent: 7127222 (2006-10-01), Kim et al.
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International Search Report mailed Nov. 1, 2005 in corresponding PCT Application No. PCT/Se05/01067.
International Preliminary Report on Patentability mailed Oct. 18, 2006 in corresponding PCT Application No. PCT/SE05/01067.

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