Delay compensation in a discrete multitone spread spectrum commu

Details Delay compensation in a discrete multitone spread spectrum commu Delay compensation in a discrete multitone spread spectrum commu

1997-02-24

1999-02-23

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375200, 375201, 375203, 375354, 375358, 375362, 370280, 370294, 370498, 370500, 370503, 370516, 370517, 370519, H04B 1500, H04K 100, H04L 2730, H04J 300

Patent

active

058752080

ABSTRACT:
In a discrete multitone spread spectrum system, a base station receives a transmission burst from a remote unit being installed that includes delay compensation pilot tones that are uniformly spread throughout the transmission bandwidth. The arrival time transmission burst is not synchronized with the other remote units transmitting to the base station. The base station measures the phase delay of each tone and calculates the delay of the remote unit from the slope of the line of phase angle versus tone frequency. The base station transmits a signal to the remote unit that includes the magnitude and direction of the delay, which allows the remote unit to adapt the timing of its transmission to be synchronized with the other remote units.

REFERENCES:
patent: 3633107 (1972-01-01), MacPherson Brady
patent: 3745464 (1973-07-01), Lee
patent: 4412350 (1983-10-01), Miedema
patent: 4807253 (1989-02-01), Hagenauer et al.
patent: 4835517 (1989-05-01), van der Gracht et al.
patent: 5029185 (1991-07-01), Wei
patent: 5056112 (1991-10-01), Wei
patent: 5084869 (1992-01-01), Russell
patent: 5088113 (1992-02-01), Wei
patent: 5295152 (1994-03-01), Gudmundson et al.
patent: 5305353 (1994-04-01), Weerackody
patent: 5410538 (1995-04-01), Roche et al.
patent: 5732068 (1998-03-01), Takahashi et al.
patent: 5732113 (1998-03-01), Schmidl et al.
patent: 5799000 (1998-08-01), Hoole

Affiliated with

Also associated with

Rating

Delay compensation in a discrete multitone spread spectrum commu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Delay compensation in a discrete multitone spread spectrum commu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Delay compensation in a discrete multitone spread spectrum commu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-313295