Methods and apparatus for measuring, communicating and/or...

Details Methods and apparatus for measuring, communicating and/or... Methods and apparatus for measuring, communicating and/or...

H - Electricity

04

L

H04L 1/00 (2006.01) H04B 7/005 (2006.01)

Patent

CA 2653605

Wireless communications methods and apparatus are described. A communications apparatus, e.g., a base station, measures interference information, e.g., other sector interference information. The communications apparatus generates a preamble which includes a plurality of pilot symbols and at least one of the pilot symbols includes interference information. In some embodiments, the preamble is part of a superframe structure, e.g., a recurring superframe strucuture, including the preamble and a plurality of frames, at least some of the frames used to convey traffic data. The communications apparatus transmits the preamble, thus broadcasting the interference information to access terminals in the vicinity. An access terminal receives the preamble including a plurality of pilot signals, at least one of the pilot signals including interference information. The access terminal recovers the interference information from the received preamble and controls signal transmission based on the recovered interference information.

L'invention concerne des procédés et un appareil de communication sans fil. Un appareil de communication, tel qu'une station de base, mesure des informations de brouillage, et notamment des informations de brouillage d'autres secteurs. L'appareil de communication génère un préambule comprenant une pluralité de symboles pilotes, l'un au moins des symboles pilotes comprenant des informations de brouillage. Dans certains modes de réalisation, le préambule fait partie d'une structure de supertrame, telle qu'une structure de supertrame récurrente, comprenant le préambule et une pluralité de trames, certaines au moins des trames étant utilisées pour véhiculer les données de trafic. L'appareil de communication transmet le préambule, ce qui permet de diffuser les informations de brouillage à des terminaux d'accès dans le voisinage. Un terminal d'accès reçoit le préambule comprenant une pluralité de signaux pilotes, l'un au moins des signaux pilotes comprenant des informations de brouillage. Le terminal d'accès récupère les informations de brouillage à partir du préambule reçu et contrôle la transmission de signaux sur la base des informations de brouillage récupérées.

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