Apparatus and method for demodulating a modulated signal

Details Apparatus and method for demodulating a modulated signal Apparatus and method for demodulating a modulated signal

H - Electricity

03

D

H03D 3/00 (2006.01) H04B 1/707 (2006.01) H04L 1/00 (2006.01) H04L 27/22 (2006.01) H04L 27/227 (2006.01) H04L 27/233 (2006.01)

Patent

CA 2238329

A receiver includes both a coherent and noncoherent demodulator (222). When the confidence that estimates of the channel is high, the coherent demodulator (408, 409, 425, 412) is implemented (400, 418). When the confidence that estimates of the channel is low, the noncoherent demodulator (422, 421) is implemented. A controlling microprocessor controls the selection process and also provides a signal to enable the noncoherent demodulator in instances when noncoherent demodulation would most likely be better than coherent demodulation. As an example, such an instance would be immediately after handoff of a mobile station from a source base-station to a target base- station.

L'invention concerne un récepteur comportant un démodulateur (222) cohérent et un démodulateur (222) non cohérent. Lorsqu'il y a une forte certitude d'estimation de voie, le démodulateur cohérent (408, 409, 425, 412) est mis en application (400, 418). Lorsqu'il y a une faible certitude d'estimation de voie, le démodulateur non cohérent (422, 421) est mis en application. Un microprocesseur commande le procédé de sélection et émet également un signal permettant de mettre en application le démodulateur non cohérent dans les cas où une démodulation non cohérente pourrait être plus appropriée qu'une démodulation cohérente. Par exemple, un tel cas pourrait se présenter immédiatement après le transfert d'une station mobile, d'une station de base source à une station de base cible.

Affiliated with

Also associated with

Rating

Apparatus and method for demodulating a modulated signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for demodulating a modulated signal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for demodulating a modulated signal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1672428