Method and system for overhead reduction in a wireless...

H - Electricity – 04 – W

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H04W 72/12 (2009.01) H04W 24/00 (2009.01) H04L 27/18 (2006.01)

Patent

CA 2727181

Methods and apparatus are provided for increasing throughput m a wireless communication system by reducing the amount of overhead transmitted to certain user terminals. Overhead due to control information may be reduced for these certain user terminals by selecting a low repetition factor. Overhead may be further reduced for these certain user terminals by selecting a modulation/coding scheme with a higher data rate for transmitting the control information. The selection may be based on channel conditions associated with the user terminals, such as signal-to-interference-plus-noise ratios (SINRs).

L'invention concerne des procédés et un appareil pour augmenter le débit dans un système de communication sans fil par la réduction de la quantité de surdébit transmise à certains terminaux d'utilisateurs. Le surdébit dû aux informations de commande peut être réduit pour ces certains terminaux d'utilisateurs par la sélection d'un facteur de répétition faible. Le surdébit peut être réduit davantage pour ces certains terminaux d'utilisateurs par la sélection d'un plan de modulation/codage avec un débit de données supérieur pour transmettre les informations de commande. La sélection peut être basée sur les conditions de canaux associées aux terminaux d'utilisateurs, telles que des rapports de signaux sur interférence plus bruit (SNIR).

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