Adaptive frame durations for time-hopped impulse radio systems
First Claim
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1. A method for determining a duration of a frame in an impulse radio system, comprising:
- determining a frame duration of a radio signal according to channel state information;
transmitting frames according to the frame duration from a transmitter to a receiver as pulses; and
estimating a time of arrival of the pulses in the receiver to determine a distance between the transmitter and the receiver.
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Abstract
A method determines a duration of a frame in an impulse radio system for radio ranging. Channel state information of a channel between two transceivers is estimated periodically. A signal to noise and interference ratio is also estimated periodically. The frame duration of the frame is then determined according to the channel state information and the signal to noise and interference ratio.
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Citations
13 Claims
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1. A method for determining a duration of a frame in an impulse radio system, comprising:
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determining a frame duration of a radio signal according to channel state information;
transmitting frames according to the frame duration from a transmitter to a receiver as pulses; and
estimating a time of arrival of the pulses in the receiver to determine a distance between the transmitter and the receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. The method of claim 1, in which the receiver periodically estimates the channel state information of a channel.
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12-1. A method for determining a duration of a frame in an impulse radio system, comprising:
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determining a frame duration of a radio signal according to channel state information and a structure of a receiver;
transmitting frames according to the frame duration from a transmitter to the receiver as pulses; and
estimating a time of arrival of the pulses in the receiver to determine a distance between the transmitter and the receiver.
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13. A method for determining a duration of a frame in an impulse radio system, comprising:
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determining a frame duration of a radio signal according to a structure of a receiver;
transmitting frames according to the frame duration from a transmitter to the receiver as pulses; and
estimating a time of arrival of the pulses in the receiver to determine a distance between the transmitter and the receiver.
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Specification