Ofdm/ofdma frame structure for communication systems

Details Ofdm/ofdma frame structure for communication systems Ofdm/ofdma frame structure for communication systems

H - Electricity

04

L

H04L 27/26 (2006.01)

Patent

CA 2702444

An OFDM/OFDMA frame structure technology for communication systems is disclosed. The OFDM/OFDMA frame structure technology comprises a variable length sub-frame structure with efficiently sized cyclic prefixes and efficient transition gap durations operable to effectively utilize OFDM/OFDMA bandwidth. Furthermore, the frame structure provides compatibility with multiple wireless communication systems. An uplink frame structure and a downlink frame structure are provided.

La présente invention concerne une technologie de structure de trame OFDM/OFDMA pour des systèmes de communication. La technologie de structure de trame OFDM/OFDMA comprend une structure de sous-trame de longueur variable avec des préfixes cycliques ayant une taille suffisante et des durées d'intervalle de transition efficaces qui peuvent servir à utiliser de manière efficace une largeur de bande OFDM/OFDMA. En outre, la structure de trame offre une compatibilité avec de multiples systèmes de communication sans fil. Une structure de trame de liaison montante et une structure de trame de liaison descendante sont proposées.

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