EP0418103A2
Expired / Lapsed
EP
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Mobile radio communication system
Assignee: PCN ONE Ltd
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Filing: 1990-09-14
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Granted: —
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Expires: 2010-09-14
Abstract
Abstract A mobile radio comprises a base station BS arranged to communicate with a mobile subscriber unit SU by means of a relay station R2. The provision of the relay R2 enabling the subscriber unit to transmit on a lower power than would be required to make direct contact with the base station BS.
Inventors
- 👤 Dennis Smith
- 👤 Walter Harold William Dr. Tuttlebee
- 👤 Patrick Hugh Waters
- 👤 Barry West
- 👤 Andrew Mark Graham Westcott
- 👤 Stephen Dr. Rotheram
- 👤 John Davis
- 👤 Neale Hightower
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 17:55
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/24; H04B7/26; H04B7/2603; H04B7/2606; H04W; H04W16/00; H04W16/24; H04W16/26
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A mobile radio communication system, comprising a base station serving a geographical area; moveable subscriber units in the area and radio relay stations via which the subscriber units and the base station can communicate; each relay station having automatic gain control and being designed to suppress input signals below a predetermined power level in the direction through the relay station from subscriber unit to base station, wherein the system is designed to send a message between the base station and a mobile subscriber unit substantially simultaneously via more than one relay station.
Claim 2
Dependent Claim
92 words
A mobile radio communication system, comprising a base station serving a geographical area; moveable subscriber units in the area and radio relay stations via which the subscriber units and the base station can communicate; each relay station having automatic gain control and being designed to suppress input signals below a predetermined power level in the direction through the relay station from subscriber unit to base station, wherein the system is designed to send a message between the base station and a mobile subscriber unit substantially simultaneously via more than one relay station.
Claim 3
Dependent Claim
61 words
A mobile radio communication system comprising a base station serving a geographical area; mobile subscriber units in the area; and radio relay stations; the subscriber units and the base station being designed to communicate only via the relay stations, and to send a message between the base station and a mobile subscriber unit substantially simultaneously via more than one relay station.
Claim 4
Dependent Claim
61 words
A mobile radio communication system comprising a base station serving a geographical area; mobile subscriber units in the area; and radio relay stations; the subscriber units and the base station being designed to communicate only via the relay stations, and to send a message between the base station and a mobile subscriber unit substantially simultaneously via more than one relay station.
Claim 5
Dependent Claim
55 words
A system according to claim 1 or 2 in which each relay station comprises means for measuring the level of a signal received from a subscriber unit, coding such information and transmitting it to the base station and in which the base station comprises means for instructing the subscriber unit to adjusts its power level.
Claim 6
Dependent Claim
52 words
A system according to claim 1, or any claim dependant thereon in which the automatic gain control is arranged to provide information in the relayed signal indicative of the level of the input signal and in which the base station comprises means for instructing the subscriber unit to adjust the power level.
Claim 7
Independent Claim
35 words
A system according to any preceding claim in which each relay station is designed to demodulate signals received from subscriber units and to provide at least one modulated signal for transmission to the base station.
Claim 8
Independent Claim
28 words
A system according to any preceding claim in which each relay station transmits signals to the base station at a frequency different from signals received from subscriber units.
Claim 9
Independent Claim
31 words
A system according to any preceding claim in which each relay station has two antennas, one for communication with subscriber units and the other being for communication with the base station.
References Cited (Backward Citations)
No citation records indexed.
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