Patent ID: 8379761
Filing Date: 2013-02-19
Classification: H04L

Abstract:
1. A transmitter configured to transmit modulated signals over a communication link, the transmitter comprising: a channel encoder configured to encode data bits to create encoded data bits; a modulator configured to modulate the encoded data bits, wherein the modulator selects as a selected modulation scheme one of a first modulation scheme or a second modulation scheme for each respective time slot of a plurality of time slots; wherein, for each respective time slot, the channel encoder: wherein, for each respective time slot, the modulator: wherein, for consecutive time slots of the plurality of time slots, the modulator: applies a window function to the prefix and the suffix of the consecutive time slots when the selected modulation scheme differs between the consecutive time slots, the window function being configured to smoothly ramp up the prefix and smoothly ramp down the suffix of the consecutive time slots to minimize discontinuity between the consecutive time slots.