Ultra-wideband high data-rate communication apparatus and associated methods

• US 7,206,334 B2
• Filed: 05/13/2003
• Issued: 04/17/2007
• Est. Priority Date: 07/26/2002
• Status: Expired due to Fees

• Current Assignee: Alereon Incorporated (PNG Telecommunications, Inc.)
• Original Assignee: Alereon Incorporated (PNG Telecommunications, Inc.)
• Inventors: Siwiak, Kazimierz
• Primary Examiner(s): Corrielus, Jean B.
• Assistant Examiner(s): Bolourchi, Nader
• Application Number:
  US10/436,646
• Publication Number:
  US 20040017841A1
• Time in Patent Office: 1,435 Days
• Field of Search: 375/259, 375/261, 375/271, 375/279, 375/280, 375/281, 375/219, 375/223, 375/295, 375/298, 375/300, 375/302, 375/308, 455/91, 455/73
• US Class Current: 375/146
• CPC Class Codes: H04B 1/692 Hybrid techniques using combinations of two or more spread spectrum techniques
• CPC Class Codes: H04B 1/707 using direct sequence modulation
• CPC Class Codes: H04B 1/7163 using impulse radio
• CPC Class Codes: H04B 1/7174 Pulse generation in general H04L25/03834
• CPC Class Codes: H04B 1/7176 Data mapping, e.g. modulation
• CPC Class Codes: H04B 1/719 Interference-related aspects
• CPC Class Codes: H04J 13/0022 PN, e.g. Kronecker
• CPC Class Codes: H04J 13/10 Code generation
• CPC Class Codes: H04L 2027/002 using feedback from a remote receiver
• CPC Class Codes: H04L 2027/0055 single phase
• CPC Class Codes: H04L 2027/0087 Out-of-band signals, (e.g. pilots)
• CPC Class Codes: H04L 25/03828 Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties partial response systems H04L25/497
• CPC Class Codes: H04L 27/0014 Carrier regulation of chaotic carriers H04L27/001; for multicarrier receivers H04L27/2657

Abstract

An RF transmitter includes a reference signal generator, a signal generator, and a mixer. The reference signal generator provides a reference signal that has a prescribed or desired frequency. The signal generator provides an operating signal in response to a selection signal. The operating signal has a frequency that equals the frequency of the reference signal multiplied by a number. The mixer mixes the operating signal with another signal to generate a transmission signal. An RF receiver includes a first mixer, a second mixer, an integrator/sampler, and a signal generator. The first mixer receives as its inputs an input RF signal and a second input signal, and mixes its input signals to generate a mixed signal. The integrator/sampler receives the mixed signal and processes it to provide an output signal. The signal generator provides an operating signal in response to a selection signal. The operating signal has a frequency equal to the frequency of a reference signal, multiplied by a number. The second mixer mixes the operating signal with a template signal to generate the second input signal of the first mixer.

Claims

1. A radio-frequency (RF) transmitter, comprising:

a reference signal generator, the reference signal generator configured to provide a reference signal having a frequency;

a signal generator coupled to the reference signal generator and operable to receive the reference signal, the signal generator configured to provide an operating signal based on a selection signal, wherein said selection signal varies according to a predetermined channel frequency and timing plan, wherein the operating signal has a frequency equal to the frequency of the reference signal multiplied by a number; and

a first mixer operable to receive the operating signal, the first mixer configured to mix the operating signal with a first signal comprising data to generate a transmission signal, wherein the predetermined channel frequency and timing plan is configured to cause the transmission of the transmission signal on each of a plurality of predetermined harmonic frequencies in a predetermined order, the transmission time duration on any one of the plurality of harmonic frequencies lasting for a predetermined time duration.

2. The transmitter according to claim 1, further comprising a second mixer, the second mixer configured to mix an input data signal with a second signal to generate the first signal.

3. The transmitter according to claim 2, further comprising a signal shaping circuitry, the signal shaping circuitry configured to generate the second signal by shaping the reference signal.

4. The transmitter according to claim 3, wherein the input data signal comprises a modulated data signal.

5. The transmitter according to claim 4, wherein the input data signal comprises a binary phase shift keyed (BPSK) signal.

6. The transmitter according to claim 4, wherein the input data signal comprises a quadrature amplitude modulated (QAM) signal.

7. The transmitter according to claim 4, wherein the input data signal comprises a quadrature phase shift keyed (QPSK) signal.

8. The transmitter according to claim 3, wherein the signal shaping circuitry is configured to full-wave rectify the reference signal to generate the second signal.

9. The transmitter according to claim 8, wherein the reference signal comprises a sinewave signal.

10. The transmitter according to claim 3, wherein the signal shaping circuitry is configured to generate a Gaussian-shaped signal as the second signal.

11. The transmitter according to claim 3, wherein the signal shaping circuitry comprises a filter.

12. The transmitter according to claim 1, further comprising a filter, the filter configured to receive the transmission signal, the filter further configured to generate a filtered transmission signal.