EP0556010A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Diversity reception arrangement
Assignee: Nokia Oyj
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Filing: 1993-02-08
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Granted: —
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Expires: 2013-02-08
Abstract
Abstract In the booster (20) of a cellular radio telephone (20) the diversity reception is arranged so that the quality, e.g. the level, of the received and amplified (Rx1, Rx2) signal is detected (A1, A2), the better signal is selected by a logic (DP), and the selected better signal is connected (SWb) to the connection (C1) of the cellular radio telephone's antenna cable (AC). The arrangement includes a circuit (TF, DP) for receiving timing information from the cellular radio telephone in order to synchronize the operation of the cellular radio telephone and the booster.
Inventors
- 👤 Timo Ali-Vehmas
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 05:25
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/02; H04L1/06; H04B; H04B1/00; H04B1/38; H04B1/3827; H04B1/3877; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0817; H04B7/082
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
87 words
A diversity reception arrangement for a cellular radio telephone booster having two antennas wherein the arrangement comprises means for determining the quality of individual signals received by each antenna, means for selecting the better of the received signals, and means for transmitting the selected signal to a cellular radio telephone through an antenna cable, characterized in that the arrangement comprises means for receiving signal frame timing information supplied from the cellular radio telephone in order to synchronize the operation of the cellular radio telephone and the booster.
Claim 2
Dependent Claim
22 words
An arrangement according to claim 1, which operates in a digital system, in which the signals are transmitted as digital data bursts.
Claim 3
Dependent Claim
26 words
An arrangement according to claim 1, wherein the frame synchronization information is received from the antenna cable signal by filtering the timing from the transmission burst.
Claim 4
Dependent Claim
28 words
An arrangement according to claim 1, wherein the frame synchronization information is received from the antenna cable by filtering from the signal a low frequency component superimposed thereon.
Claim 5
Dependent Claim
25 words
An arrangement according to claim 2, 3 or 4, wherein that said signal quality is detected at the beginning of each received radio signal burst.
Claim 6
Dependent Claim
16 words
The use of an arrangement according to any previous claim in a cellular radio telephone network.
References Cited (Backward Citations)
EP0118357A1
Cited
US5065449A
Cited
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