Mobile station assisted timing synchronization in a cdma...

Details Mobile station assisted timing synchronization in a cdma... Mobile station assisted timing synchronization in a cdma...

H - Electricity

04

W

H04W 56/00 (2009.01)

Patent

CA 2316260

In the present invention, the slave base station (64) attains synchronization with the reference base station (62) through messages (504) transmitted from and received by a mobile station (60) either in the soft handoff region between the reference base station (62) and the slave base station (64) or within a range which allows the mobile station (60) to communicate with the slave base station (64). When the mobile station (62) is not in communication with both the reference base station and the slave base station (62), then the round trip delay between the mobile station and the reference base station is measured by the reference base station (62). The reference base station (62) communicates the PN code used by the mobile station over the reverse link to the slave base station. The slave base station (64) acquires the signal (504) from the mobile station (60) and determines when the signal from the mobile station arrives. The slave base station (64) then makes and estimates as to the length of the delay between transmission of a signal from the mobile station (60) to the slave base station (64). Based upon these measurements and estimates, the slave base station (64) determines the error which is present in the slave base station system time.

Dans cette invention, la station (64) de base asservie devient synchrone avec la station (62) de base de référence par l'intermédiaire de messages (504) envoyés et reçus par une station mobile (60) soit dans la région de transfert progressif existant entre la station (62) de base de référence et la station (64) de base asservie soit dans la plage qui permet à la station mobile (60) de communiquer avec la station (64) de base asservie. Lorsque la station mobile (60) n'est pas en communication avec la station de base de référence et avec la station (62) de base asservie, l'attente nécessaire au voyage aller-et-retour entre la station mobile et la station de base de référence est mesurée par la station (62) de base de référence. La station (62) de base de référence communique à la station de base asservie le code PN (bruit pseudoaléatoire) utilisé par la station mobile sur la liaison de retour. La station (64) de base asservie récupère le signal (504) envoyé par la station mobile (60) et détermine le moment d'arrivée du signal provenant de la station mobile. La station (64) de base asservie estime ensuite la longueur de l'attente entre la transmission d'un signal envoyé par la station mobile (60) à la station (64) de base asservie. Sur la base de ces mesures et de ces estimations, la station (64) de base asservie détermine l'erreur qui existe dans l'heure du système de la station de base asservie.

Affiliated with

Also associated with

Rating

Mobile station assisted timing synchronization in a cdma... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mobile station assisted timing synchronization in a cdma..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile station assisted timing synchronization in a cdma... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1658543