EP0201254A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Terrestrial communications system base station
Assignee: AT&T Inc
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Filing: 1986-04-28
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Granted: —
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Expires: 2006-04-28
Abstract
Abstract A terrestrial radio system (100) which utilizes spot beams (41, 42, 43) time division multiple access and frequency re-use to provide communications services from a base station (10) to remote customers (11) within a system service region (12). The base station advantageously is arranged with multistage switching (515, 517, 519) so as to permit the respective sharing of radio transmitters (518) and receivers (516) over larger number of antenna transmitting and receiving ports.
Inventors
- 👤 Anthony Acampora
- 👤 Ta-Shing Chu
- 👤 Corrado Dragone
- 👤 Michael James Gans
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 21:42
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/24; H04W16/28; H04B; H04B7/00; H04B7/24; H04W16/02; H04W16/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
183 words
A base station for a terrestrial communications system, said base station being CHARACTERISED BY a plurality of signal receving ports (510), each receiving port being disposed at a terrestrial location to receive energy at a predetermined frequency from one of a plurality of regions forming a system service region, said predetermined frequency being the same for more than one of said plurality of signal receiving ports receiving energy from different ones of said regions, a plurality of signal transmitting ports (520), each transmitting port being disposed at said terrestrial location to transmit energy at said predetermined frequency to said one of said plurality of regions forming said system service region; said predetermined frequency being the same for more than one of said plurality of signal transmitting ports transmitting energy to different ones of said regions, at least one transmitter (518), at least one receiver (516), and means (550,515,517) for respectively interconnecting said transmitter and receiver to a selected one of said signal transmitting and signal receiving ports during a time slot in a sequence of time slots forming a time division multiplexed frame.
Claim 2
Dependent Claim
183 words
A base station for a terrestrial communications system, said base station being CHARACTERISED BY a plurality of signal receving ports (510), each receiving port being disposed at a terrestrial location to receive energy at a predetermined frequency from one of a plurality of regions forming a system service region, said predetermined frequency being the same for more than one of said plurality of signal receiving ports receiving energy from different ones of said regions, a plurality of signal transmitting ports (520), each transmitting port being disposed at said terrestrial location to transmit energy at said predetermined frequency to said one of said plurality of regions forming said system service region; said predetermined frequency being the same for more than one of said plurality of signal transmitting ports transmitting energy to different ones of said regions, at least one transmitter (518), at least one receiver (516), and means (550,515,517) for respectively interconnecting said transmitter and receiver to a selected one of said signal transmitting and signal receiving ports during a time slot in a sequence of time slots forming a time division multiplexed frame.
Claim 3
Dependent Claim
18 words
A station as claimed in claim 1 wherein said regions receiving energy at the same frequency are nonadjacent.
Claim 4
Dependent Claim
19 words
A station as claimed in claim 2 wherein said regions transmitting energy at the same predetermined frequency are nonadjacent.
Claim 5
Dependent Claim
21 words
A station as claimed in claim 1 wherein each of said regions transmits and receives energy having one of two frequencies.
Claim 6
Dependent Claim
18 words
A station as claimed in claim 4 wherein each of said two frequencies has one of two polarizations.
Claim 7
Dependent Claim
16 words
A station as claimed in claim 1 wherein said interconnecting means comprises a matrix switch (515,517).
References Cited (Backward Citations)
No citation records indexed.
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