Wireless local area network time division duplex relay system with high speed automatic up-link and down-link detection
First Claim
1. A time division duplex repeater system, comprising:
- two antennas serving first and second coverage areas, the second coverage area being an extension of the first coverage area;
a switched directional amplifier coupled between the two antennas, wherein said switched directional amplifier is controlled to only provide amplification of a signal associated with one of said first and second coverage areas at any particular point in time; and
control circuitry coupled to the switched directional amplifier and to the two antennas, the control circuitry being adapted to receive transmissions from the first and second coverage areas and apply control signals to the switched directional amplifier to control a signal path direction for said amplification by said switched directional amplifier.
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Accused Products
Abstract
A time division duplex repeater system includes two antennas, a switched directional amplifier and control circuitry. The antennas serve first and second coverage areas where the second coverage area is an extension of the first coverage area. The switched directional amplifier is coupled between the two antennas and has a single amplifier. The control circuitry is coupled to the switched directional amplifier and to receive inputs of the antennas. The control circuitry receives transmissions from the coverage areas and applies control signals to the switched directional amplifier to control the direction of transmission. The control circuitry may control the amplifier gain and direction of transmission based on the input signal power level.
183 Citations
59 Claims
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1. A time division duplex repeater system, comprising:
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two antennas serving first and second coverage areas, the second coverage area being an extension of the first coverage area;
a switched directional amplifier coupled between the two antennas, wherein said switched directional amplifier is controlled to only provide amplification of a signal associated with one of said first and second coverage areas at any particular point in time; and
control circuitry coupled to the switched directional amplifier and to the two antennas, the control circuitry being adapted to receive transmissions from the first and second coverage areas and apply control signals to the switched directional amplifier to control a signal path direction for said amplification by said switched directional amplifier. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for extending a coverage area, comprising:
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means for receiving a first signal associated with a first coverage area;
means for receiving a second signal associated with a second coverage area;
means for determining a direction of re-transmission based on a signal attribute associated with the first and second received signals; and
means for configuring an amplifier circuit for amplifying a selected one of the first and second received signals associated with the determined direction of re-transmission. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A method for extending a coverage area, comprising:
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determining a direction of re-transmission by a repeater system based upon a monitored signal attribute; and
configuring an amplifier circuit for amplifying a selected one of the first and second received signals associated with the determined direction of re-transmission. - View Dependent Claims (25, 26, 27, 28, 29)
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30. A method of extending a coverage area, comprising:
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receiving first and second input signals over opposing directional antennas, the directional antennas serving respective first and second coverage areas;
determining a direction of transmission based on a signal attribute associated with the first and second received signals;
amplifying a selected one of the first and second received signals based on the determined direction of transmission, wherein the selected received signal is associated with a first opposing directional antenna of said opposing directional antennas; and
outputting the amplified received signal via a second opposing directional antenna of said opposing directional antennas. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A time division duplex repeater system, comprising:
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two antennas serving first and second coverage areas respectively, the second coverage area being an extension of the first coverage area;
a switched directional amplifier having a pair of cross coupled, tri-state amplifiers coupled between the two antennas; and
control circuitry coupled to the amplifiers and to receive outputs of the antennas, the control circuitry being adapted to receive transmissions from the coverage areas and apply control signals to the amplifiers so one amplifier of the pair is active at a time to control the direction of transmission. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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Specification