TDMA radio protocol with adaptive vocoder selection

Details TDMA radio protocol with adaptive vocoder selection TDMA radio protocol with adaptive vocoder selection

1997-02-13

2000-01-11

Pham, Chi H.

Multiplex communications

Communication over free space

Combining or distributing information via time channels

370330, 370437, H04J 400

Patent

active

060143754

ABSTRACT:
A new air interface protocol compliant with narrowband (12.5 kHz) channels being mandated for use in North America provides a narrowband (i.e., 18 kbps-19.2 kbps), two-slot scaled version of the European TETRA time division signaling that can accommodate different vocoder frame formats. Any vocoder having a frame size that is a submultiple of a certain frame rate can be used. The new air interface is fully compatible with prior frequency division signaling control channels. Adaptive vocoder selection can allow a radio to dynamically select between different vocoding standards and indicate its selection through over-the-air signaling.

REFERENCES:
patent: 5414796 (1995-05-01), Jacob et al.
patent: 5528579 (1996-06-01), Wadman et al.
patent: 5537410 (1996-07-01), Li
patent: 5574788 (1996-11-01), Childress et al.
patent: 5729226 (1998-03-01), Betts et al.
patent: 5790527 (1998-08-01), Janky et al.
patent: 5822314 (1998-10-01), Chater-Lea

Affiliated with

Also associated with

Rating

TDMA radio protocol with adaptive vocoder selection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with TDMA radio protocol with adaptive vocoder selection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TDMA radio protocol with adaptive vocoder selection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1467582