1
Kitagawa Keiichi, Uesugi Mitsuru: Cdma radio communication system and method. Matsushita Electric, December 15, 2000: JP2000-349689 (36 worldwide citation)

PROBLEM TO BE SOLVED: To provide a system which has comparatively high resistance to the fading, shadowing, etc., can improve its quality and also can shorten the guard time and increase the cell radius in a TDD(time division duplex) system by performing the chip interleaving processing to the sprea ...


2
Kitagawa Keiichi, Uesugi Mitsuru: Cdma radio communication system and method. Matsushita Electronics, January 26, 2000: EP0975118-A2 (1 worldwide citation)

In a CDMA transmission, a quality of each symbol of a frame is held constant by interleaving spread chip, while overhead and interference amounts in other cells are reduced by easing a rate of transmission power control. Further, transmission power is decreased by discontinuing transmission at the t ...


3
Kitagawa Keiichi, Uesugi Mitsuru: Cdma radio communication system and method. Matsushita Electric, August 29, 2007: EP1826938-A1

In a CDMA transmission, a spreading system divides one symbol to a plurality of N chips equal to a number of a plurality of N slots contained in one frame, by spreading the symbol by a spreading factor N equal to the number of the plurality of N slots contained in the frame. Further, a chip interlea ...