Code division multiple access mobile communication system

Details Code division multiple access mobile communication system Code division multiple access mobile communication system

H - Electricity

04

J

H04J 13/00 (2006.01) H04B 7/26 (2006.01) H04Q 7/22 (2006.01)

Patent

CA 2126237

- 36 - In a mobile communication system which uses a code division multiple access (CDMA) scheme for communications between a base station and a plurality of mobile stations, the base station has a transmitting device in which a plurality of information sequences S1 through Sn are respectively spread by multipliers 11 through 1n with a common spreading code from a spreading code generator circuit 10, the spread codes are provided to transmitting timing control circuits 21 through 2n and then added by an adder 30 to perform transmitting timing offset multiplexing and then the spread signals are transmitted to the mobile stations at different transmitting timing. The mobile stations each have a receiving device which receives that one of the transmitted signals which was transmitted at timing predetermined for the mobile station and despreads the received signal with the same spreading code as that used in the transmitting device, thereby reconstructing the original information sequence concerned.

Dans un système de communication mobile utilisant l'accès multiple par répartition de code (AMRC) pour les communications entre une station de base et un certain nombre de stations mobiles, la station de base comprend un dispositif émetteur dans lequel un certain nombre de séquences d'information S1 à Sn sont respectivement étalées par des multiplicateurs 11 à 1n au moyen d'un code d'étalement commun provenant d'un circuit générateur de code d'étalement 10, les codes d'étalement sont transmis aux circuits de synchronisation de transmission 21 à 2n, puis additionnés par un circuit d'addition 30 afin d'exécuter le multiplexage à décalage de synchronisation de transmission, puis les signaux d'étalement sont transmis aux stations mobiles selon des synchronisations de transmission différentes. Les stations mobiles ont chacune un dispositif récepteur qui reçoit celui des signaux transmis qui a été transmis selon une synchronisation prédéterminée pour la station mobile et désétale le signal reçu au moyen du code d'étalement utilisé dans le dispositif émetteur, de manière à rétablir la séquence d'information d'origine.

Affiliated with

Also associated with

Rating

Code division multiple access mobile communication system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Code division multiple access mobile communication system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Code division multiple access mobile communication system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1696383