Random access communication opportunity method

Details Random access communication opportunity method Random access communication opportunity method

H - Electricity

04

W

H04W 74/08 (2009.01) H04L 12/56 (2006.01)

Patent

CA 2535424

During a random access communication opportunity (12), user equipment (20) utilizes either or both of an adaptive modulation and coding-based communication protocol (26) and an HARQ-based communication protocol (27) to achieve improved performance. This can avoid the need to establish dedicated channels (13) to support the required communications. In one embodiment, a plurality of adaptive modulation and coding-based communication protocols are provided with a given protocol being selected as a function of one or more governing criteria. For example, the protocol can be selected as a function of a quality condition of the communication path, as a function of a memory buffer, and so forth.

Dans le procédé décrit, l'équipement (20) d'abonné utilise un protocole (26) de communication à modulation adaptative et codage et/ou un protocole (27) de communication basé sur le système HARQ au cours d'un créneau (12) de transmission à accès aléatoire, afin d'améliorer la performance de transmission. Ce procédé permet d'éviter l'établissement de canaux (13) spécialisés pour la prise en charge des communications requises. Dans une forme de mise en oeuvre particulière, une pluralité de protocoles de transmission à modulation adaptative et codage sont fournis, et un protocole donné est choisi en fonction d'un ou de plusieurs critères déterminants. Le protocole peut être sélectionné par exemple en fonction du niveau de qualité, du trajet de transmission, d'une mémoire tampon etc.

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