Controlled superposition coding in multi-user communication...

H - Electricity – 04 – W

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H04W 72/08 (2009.01) H04W 52/26 (2009.01) H04L 27/34 (2006.01)

Patent

CA 2516382

Methods of using superposition coding in a communications systems, e.g., a multi-user communications system. Superpostion coding in accordance with the invention occurs in the case of an uplink (1212, 1216) by transmissions of different wireless terminals (1204, 1206) transmitting using the same communications resource, e.g., simultaneously transmitting using the same frequencies. The signals combine in the communications channel resulting in one transmission being superimposed on the other transmission. The device, e.g., base station (1207), receiving the superimposed signals uses superposition decoding techniques to recover both signals. To obtain the benefit of the superposition, assignments of channel segments to multiple wireless terminals is controlled by the base station and/or transmission power levels are controlled by on or more wireless terminals sharing the same uplink communications resource, e.g., time slot, to make sure that the received signals from the different devices will have different received power levels making superposition decoding possible.

L'invention concerne des procédés d'utilisation du codage par superposition dans des systèmes de communication, des systèmes de communication à utilisateurs multiples, par exemple. Le codage par superposition selon l'invention est réalisé lorsqu'il existe une liaison montante effectuant les transmissions de différents terminaux sans fil émettant en se servant des mêmes ressources de communication, en émettant simultanément au moyen des mêmes fréquences par exemple. Les signaux se rejoignent dans le canal de communication, ce qui crée une émission superposée sur l'autre émission. Le dispositif recevant les signaux superposés, la station de base par exemple, met en oeuvre des techniques de décodage de superposition pour récupérer les deux signaux. Pour tirer profit de la superposition, les attributions de segments de canaux vers des terminaux sans fil multiples sont commandées par la station de base et/ou les niveaux de puissance d'émission sont commandés par au moins un terminal sans fil partageant les mêmes ressources de communication de liaison montante, les créneaux temporels par exemple, afin de garantir que les signaux reçus des différents dispositifs auront des niveaux de puissance reçue différents, ce qui rendra possible le décodage par superposition.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Controlled superposition coding in multi-user communication... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled superposition coding in multi-user communication..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled superposition coding in multi-user communication... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-2082280

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.