Filtered multi-carrier communications
AssigneeHuawei Technologies Duesseldorf GmbH
InventorsRonald BOEHNKE, Malte SCHELLMANN, Zhao ZHAO
Life of this patent
Estimating the term…
Abstract
An apparatus for processing data symbols in a multi-carrier transmitter, includes a transmit pulse shaper and a transmit sub-band filter. The transmit pulse shaper is adapted to filter a plurality of data pulses with respective transmit pulse shaping filters. Each of the data pulses is associated with a respective carrier of the multi-carrier communication system. The transmit sub-band filter is adapted to perform sub-band filtering of the pulse-shaped data pulses. The sub-band filter and at least one of the transmit pulse shaping filters are correlated. This correlation may be achieved by jointly designing the sub-band filter and the pulse shaping filter(s).
Claims20
An apparatus for processing data symbols in a multi-carrier transmitter, comprising:
- a transmit pulse shaper, configured to filter a plurality of data pulses with respective transmit pulse shaping filters, each of said data pulses being associated with a respective carrier;
- and
- a transmit sub-band filter associated with the transmit pulse shaper, configured to perform sub-band filtering of the pulse-shaped data pulses,
- wherein the sub-band filter and at least one of the transmit pulse shaping filters are correlated.
An apparatus for processing a data signal in a multi-carrier receiver, comprising:
- a receive sub-band filter, configured to sub-band filter a received signal;
- and
- a receive pulse shaper associated with said receive sub-band filter, configured to pulse-shape carriers in the sub-band filtered signal with respective receive pulse shaping filters,
- wherein the sub-band filter and at least one of the receive pulse shaping filters are correlated.
A method of filter design for a multi-carrier communication system, comprising:
- using an electronic design automation system;
- specifying a required sub-band bandwidth, a required sub-band filter length and a required pulse shaping filter length;
- and
- jointly designing a sub-band filter having the required sub-band bandwidth and the required sub-band filter length and a receive and transmit pulse shaping filter pair, at least one of the receive pulse shaping filter and the transmit pulse shaping filter having the required pulse shaping filter length.
A non-transitory computer readable storage medium, comprising a computer readable program instruction, wherein when the computer readable program instruction is executed by a processor, the processor is configured for:
- using an electronic design automation system:
- specifying a required sub-band bandwidth, a required sub-band filter length and a required pulse shaping filter length;
- and
- jointly designing a sub-band filter having the required sub-band bandwidth and the required sub-band filter length and a receive and transmit pulse shaping filter pair, at least one of the receive pulse shaping filter and the transmit pulse shaping filter having the required pulse shaping filter length.
A computer program product, comprising a computer readable program instruction, wherein when the computer readable program instruction is executed by a processor, the processor is configured for:
- using an electronic design automation system;
- specifying a required sub-band bandwidth, a required sub-band filter length and a required pulse shaping filter length;
- and
- jointly designing a sub-band filter having the required sub-band bandwidth and the required sub-band filter length and a receive and transmit pulse shaping filter pair, at least one of the receive pulse shaping filter and the transmit pulse shaping filter having the required pulse shaping filter length.
Dependencies are inferred from the claim text.