IMPULSE ULTRA-WIDEBAND RADIO COMMUNICATION SYSTEM
First Claim
1. A method of transmitting and receiving information bits in an ultra-wideband (UWB) radio communication system, comprising:
- encoding a reference bit and at least one information bit using shifting codes;
modulating a series of ultra-wideband UWB pulses with modulation amplitudes determined from the encoded reference bit and the at least one encoded information bit;
transmitting the modulated series of UWB pulses as a signal;
receiving the signal; and
decoding the received signal using detection codes.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus are provided for implementing an impulse ultra-wideband communications system which combines the technique of transmitted reference (TR) with a code-sifted reference scheme that separates the reference and the data pulses with a sequence of codes such as a subset of Walsh codes. The combination of the two techniques in ultra-wideband (UWB) radio systems removes the wideband delay elements required by conventional TR UWB systems. The invention provides a system with no analog carriers and lower complexities than other UWB systems, and which has better performances, higher tolerance to nonlinearity, and larger capacities
-
Citations
20 Claims
-
1. A method of transmitting and receiving information bits in an ultra-wideband (UWB) radio communication system, comprising:
-
encoding a reference bit and at least one information bit using shifting codes; modulating a series of ultra-wideband UWB pulses with modulation amplitudes determined from the encoded reference bit and the at least one encoded information bit; transmitting the modulated series of UWB pulses as a signal; receiving the signal; and decoding the received signal using detection codes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An ultra-wideband (UWB) radio communication system comprising:
-
means for generating a series of UWB pulses containing an encoded reference bit and at least one encoded information bit; a transmitter having an antenna for transmitting the UWB pulses as a signal; a receiver having an antenna for receiving the signal; and means for decoding the signal to recover the at least one information bit. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification