Multicarrier transmission system with low power sleep mode and rapid-on capability

• US 20040160906A1
• Filed: 02/17/2004
• Published: 08/19/2004
• Est. Priority Date: 06/21/2002
• Status: Abandoned Application

• Current Assignee: Aware Incorporated (Crowley Holdings Preferred LLC)
• Original Assignee: Aware Incorporated (Crowley Holdings Preferred LLC)
• Inventors: Tzannes, Michael A., Greszczuk, John A., Gross, Richard W., Padir, Halil
• Application Number:
  US10/778,083
• Publication Number:
  US 20040160906A1
• Time in Patent Office: Days
• US Class Current: 370/311
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04L 12/12 Arrangements for remote connection or disconnection of substations or of equipment thereof
• CPC Class Codes: H04L 12/40006 Architecture of a communication node current supply arrangements H04L12/10; intermediate storage or scheduling H04L49/90
• CPC Class Codes: H04L 12/40169 Flexible bus arrangements arrangements for maintenance or administration involving management of faults; events, alarms H04L41/06; automatic restoration of network faults H04L41/0654
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04M 11/06 Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 52/0241 where no transmission is received, e.g. out of range of the transmitter
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A muticarrier transceiver is provided with a sleep mode in which it idles with reduced power consumption when it is not needed to transmit or receive data. The full transmission and reception capabilities of the transceiver are quickly restored when needed, without requiring the full (and time-consuming) initialization commonly needed to restore such transceivers to operation after inactivity.

Claims

1. A multicarrier transceiver having a sleep mode capability, comprising

A. means responsive to a sleep mode command for:

(1) storing selected state parameters characteristic of the communications channel over which the transceiver is operating; and

(2) reducing power to selected portions of transceiver circuitry; and

B. means responsive to a wake-up command for;

(1) restoring power to said transceiver;

(2) restoring the state of said transceiver from said sleep mode; and

C. means for maintaining a common, synchronized data frame count between said transceiver and a remote transceiver with which it communicates, to thereby facilitate restoration of communications without reinitialization of said transceiver.

2. A multicarrier transceiver comprising:

a sleep mode controller responsive to a sleep mode command and adapted to;

store selected state parameters characteristic of the communications channel over which the transceiver is operating; and

reduce power to selected portions of the transceiver; and

a wake-up controller responsive to a wake-up command and adapted to;

restore power to the transceiver; and

restore the state of the transceiver from the sleep mode; and

a frame controller that maintains a common, synchronized data frame count between the transceiver and a remote transceiver with which it communicates, to thereby facilitate restoration of communications without reinitialization of the transceiver.