Channelization code allocation for radio communication systems

Details Channelization code allocation for radio communication systems Channelization code allocation for radio communication systems

H - Electricity

04

J

H04J 13/04 (2006.01) H04B 7/26 (2006.01) H04J 11/00 (2006.01)

Patent

CA 2295813

Variable spreading factors and multi-code transmissions are flexibly accomodated by assigning spreading codes in accordance with the described techniques. Spreading codes are assigned so that the control channel is orthogonal to all physical channels in the composite spread spectrum signal. Power balance between in-phase (I)and quadrature (Q) branches in the transmitter is also provided by assigning physical channels to appropriate branches and splitting physical channels, where necessary.

Des facteurs d'étalement variables et des transmissions multi-code sont adaptés de façon flexible par l'affectation de codes d'étalement conformément aux techniques décrites. Les codes d'étalement sont affectés de telle façon que le canal de commande soit perpendiculaire à tous les canaux physiques du signal composite à étalement de spectre. L'équilibre des puissances entre la branche en phase (I) et la branche en quadrature (Q) de l'émetteur est également obtenu par affectation de canaux physiques aux branches considérées et, si besoin, par découpage des canaux physiques.

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