Radiocommunication system
First Claim
1. A radiocommunication system comprising:
- a repeater for providing a radiocommunication service over a predetermined service area; and
a radiocommunication terminal for communicating with said repeater, wherein said repeater comprises;
first communicating means for providing a radio channel by a wide beam covering the whole of said service area; and
second communicating means for providing a radio channel by spot beams covering subareas within said service area, and wherein said radiocommunication terminal can be directly communicated with said first communicating means and said second communicating means.
1 Assignment
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Accused Products
Abstract
An ATM-based radiocommunication system adapted for multimedia communication comprises a repeater for providing communication services over a predetermined service area, first radio terminals for communicating with the repeater by using ATM cells, and a second terminal for communicating with the repeater by using ATM cells and communicating with a backbone network. The repeater comprises spot beam transmission and reception antennas for providing radio channels within a predetermined service area by means of spot beams, a wide-area beam transmission and reception antenna for providing a radio channel within the predetermined service area by means of a wide-area beam, first transmitters/receivers connected to the spot beam transmission and reception antennas for transmitting and receiving ATM cells, a second transmitter/receiver connected to the wide-area beam transmission and reception antenna for transmitting and receiving ATM cells, and an ATM switching device having input terminals connected to receive ATM cells from the first and second receivers and output terminals connected to the first and second transmitters for directing incoming ATM cells to their respective proper output terminals.
102 Citations
36 Claims
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1. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area; and a radiocommunication terminal for communicating with said repeater, wherein said repeater comprises; first communicating means for providing a radio channel by a wide beam covering the whole of said service area; and second communicating means for providing a radio channel by spot beams covering subareas within said service area, and wherein said radiocommunication terminal can be directly communicated with said first communicating means and said second communicating means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area; a first radiocommunication terminal for communicating with said repeater using an ATM cell; and a second radiocommunication terminal for communicating with said repeater using an ATM cell and for communicating with a backbone network via a wire channel, said repeater comprising; spot beam transmission antennas and spot beam reception antennas for providing radio channels within said service area by spot beams; a wide beam transmission antenna and a wide beam reception antenna for providing a radio channel within said service area by a wide beam; first transmitters and first receivers connected to said spot beam transmission antennas and said spot beam reception antennas for transmitting and receiving ATM cells; a second transmitter and second receiver connected to said wide beam transmission antenna and wide beam reception antenna for transmitting and receiving ATM cells; and ATM switching means, having input terminals connected to receive ATM cells from said first and second receivers and output terminals connected to said first and second transmitters, for directing incoming ATM cells to their respective proper output terminals. - View Dependent Claims (20, 21, 22, 23, 24)
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25. A radiocommunication system comprising:
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first and second repeaters for providing communication services over different predetermined service areas; a radio transmitter/receiver for providing a communication service over a service area other than said predetermined service areas and communicating with a backbone network via a wire channel; first radiocommunication terminals for communicating with said first and second repeaters using an ATM cell and communicating with said radio transmitter/receiver; and second radiocommunication terminals for communicating with said first and second repeaters using an ATM cell and communicating with a backbone network, each of said first and second repeaters comprising; spot beam transmission antennas and spot beam reception antennas for providing radio channels within said service area by spot beams; a wide beam transmission antenna and a wide beam reception antenna for providing a radio channel within said service area by a wide beam; first transmitters and first receivers connected to said spot beam transmission antennas and said spot beam reception antennas for transmitting and receiving ATM cells; a second transmitter and second receiver connected to said wide beam transmission antenna and said wide beam reception antenna for transmitting and receiving ATM cells; and ATM switching means, having input terminals connected to receive ATM cells from said first and second receivers and output terminals connected to said first and second transmitters, for directing incoming ATM cells to their respective proper output terminals. - View Dependent Claims (26, 27)
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28. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area including means for varying an assignment of radiocommunication resources in accordance with a required information transmission rate; and a radiocommunication terminal for communicating with said repeater using an ATM cell, said repeater comprising; communicating means for providing a radio channel by a wide beam covering said service area and spot beams covering subareas within said service area; and ATM switching means connected to said communicating means.
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29. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area including a first communicating means for providing a radio channel by a wide beam covering said service area;
a second communicating means for providing a radio channel by spot beams covering subareas within said service area; and
means for selecting one of said first communicating means and said second communicating means for an up-link and the other one for a down-link; anda radiocommunication terminal for communicating with said repeater using an ATM cell; and ATM switching means connected to said communicating means.
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30. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area including a first communicating means for providing a radio channel by a wide beam covering said service area;
a second communicating means for providing a radio channel by spot beams covering subareas within said service area; and
means for selecting one of said first communicating means and said second communicating means in accordance with a required information transmission rate; anda radiocommunication terminal for communicating with said repeater using an ATM cell, ATM switching means connected to said communicating means.
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31. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area; and a radiocommunication terminal for communicating with said repeater, said repeater comprising; communicating means for providing a radio channel by a wide beam covering the whole of said service area and spot beams covering subareas within said service area; and means for varying an assignment of radiocommunication resources in accordance with a required information transmission rate. - View Dependent Claims (32, 33, 34)
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35. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area including first communicating means for providing a radio channel by a wide beam covering the whole of said service area;
second communicating means for providing a radio channel by spot beams covering subareas within said service area; and
means for activating said first communicating means for uplinks and said second communicating means for downlinks; anda radiocommunication terminal for communicating with said repeater using an ATM cell; and ATM switching means connected to said communicating means.
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36. A radiocommunication system comprising:
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a repeater for providing a radiocommunication service over a predetermined service area including means for varying directivity of the beams in accordance with a required information transmission rate; and a radiocommunication terminal for communicating with said repeater using an ATM cell, said repeater comprising; communicating means for providing a radio channel by a wide beam covering said service area and spot beams covering subareas within said service area; and ATM switching means connected to said communicating means.
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Specification