H - Electricity – 04 – J
Patent
H - Electricity
04
J
H04J 11/00 (2006.01) H04B 1/707 (2006.01)
Patent
CA 2703864
Provided is a radio communication device which can improve the NACK error rate characteristic. The device includes: a scrambling unit (214) which multiplies a response signal after modulated, by a scrambling code "1" or "-1" so as to inverse a constellation for each of response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a ZAC sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209).
Dispositif de communication radio permettant d'améliorer la caractéristique de taux d'erreur NACK. Le dispositif comprend les éléments suivants: unité de brouillage (24) multipliant un signal de réponse après modulation par un code de brouillage "1" ou "-1"de manière à inverser la constellation de chacun des signaux de réponse sur un axe de décalage cyclique; unité d'étalement (215) effectuant un étalement primaire du signal de réponse au moyen d'une séquence ZAC fixée par une unité de commande (209); et unité de désétalement (218) effectuant un étalement secondaire du signal de réponse après étalement primaire au moyen d'une séquence de code à étalement par bloc fixée par l'unité de commande (209)
Imamura Daichi
Nakao Seigo
Osler Hoskin & Harcourt Llp
Panasonic Corporation
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