Channelization code allocation for radio communication systems

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

1997-07-11

2000-08-22

Vo, Don N.

Pulse or digital communications

Spread spectrum

Direct sequence

H04B 1500, H04K 100, H04L 2730

Patent

active

061083690

ABSTRACT:
Variable spreading factors and multi-code transmissions are flexibly accommodated 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.

REFERENCES:
patent: 5544156 (1996-08-01), Teder et al.
patent: 5559788 (1996-09-01), Zscheile, Jr. et al.
patent: 5619526 (1997-04-01), Kim et al.
patent: 5751761 (1998-05-01), Gilhousen
patent: 5920552 (1999-07-01), Allpress et al.

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