Patent ID: 8411860

Claim:
A wireless communication system comprising first and second apparatuses, wherein said first apparatus comprises; a scramble data generation portion configured to generate, based on first information, a plurality of sets of pseudorandom scramble data; a first scramble module configured to scramble second data using third data, wherein the third data includes a portion of the scramble data corresponding to one or more sub-channels assigned for communication between the first and second apparatuses; and a first transmission portion configured to transmit fourth data to the second apparatus, wherein the fourth data is based on an output of the first scramble module, said second apparatus comprises: a first receiving portion configured to receive the fourth data from the first apparatus; a descramble data generation portion configured to generate, based on the first information received beforehand from the first apparatus, a copy of the scramble data; and a first descramble module configured to descramble fifth data using the third data, wherein the fifth data is based on the fourth data.