Apparatus and method for transmitting and receiving common...

Details Apparatus and method for transmitting and receiving common... Apparatus and method for transmitting and receiving common...

H - Electricity

04

B

H04B 7/26 (2006.01)

Patent

CA 2540846

A method for transmitting common control information from a base station to a plurality of subscriber stations in a wireless communication. The common control information includes first information transmitted in common to all of the subscriber stations and second information separately transmitted to the subscriber stations according to channel states of the subscriber stations. The first information is transmitted using an MCS (Modulation and Coding Scheme) level having a modulation scheme with a lowest order and a coding scheme with a lowest coding rate among all MCS levels available in the base station. The second information is transmitted using MCS levels that are adjusted by a predetermined level against MCS levels corresponding to channel states of the subscriber stations.

Cette invention concerne un procédé d'émission d'information à commande commune depuis une station de base vers une pluralité de postes d'abonnées au sein d'un système de communication sans fil. Les informations à commande commune comprennent des premières informations émises en commun à l'intention de tous les postes d'abonné et des secondes informations émises séparément vers tous les postes d'abonné selon l'état des canaux desdits postes. Les premières informations sont émises au moyen niveau MCS (Modulation and Coding Scheme/système de modulation et de codage) avec système de modulation d'ordre le plus bas et système de codage le plus bas parmi tous les niveaux MCS disponibles dans la station de base. Les secondes informations sont émises au moyen de niveau MCS qui sont ajusté selon un niveau prédéterminé par rapport aux niveaux MCS correspondant aux états de canaux des postes d'abonné.

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