Using a single fast hadamard transform to decode access...

H - Electricity – 04 – W

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H04W 36/08 (2009.01) H04W 48/16 (2009.01)

Patent

CA 2674918

Aspects describe a Fast Hadamard Transform that is common to multiple mobile devices. A scrambled sequence produced by the Fast Hadamard Transform can be utilized to decode access-based handoff probes from multiple terminals within a wireless communications system. A Walsh Sequence can be scrambled with a common random sequence to produce a scrambled sequence. At least a portion of the scrambled sequence is included in an access probe.

La présente invention concerne une FHT (transformée d'Hadamard rapide) commune à plusieurs dispositifs mobiles. Une séquence brouillée produite par la transformée d'Hadamard rapide peut être utilisée pour décoder des sondes de transfert sur la base de l'accès à partir de plusieurs terminaux au sein d'un système de communication sans fil. Une séquence de Walsh peut être brouillée avec une séquence aléatoire commune pour produire une séquence brouillée. Au moins une partie de la séquence brouillée est incluse dans une sonde d'accès.

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