Ultra-high data rate digital mm-wave transmitter with energy efficient spectral filtering
AssigneeIntel Corporation
InventorsBryan Casper, James Jaussi, Chintan Thakkar, Stefan Shopov
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Abstract
A digital transmitter architecture is disclosed to transmit (TX) multi-gigabit per second data signals on single carriers (SC) or orthogonal frequency division multiplexing (OFDM) carriers at millimeter wave frequencies in either one of a high-resolution modulation mode or a spectral shaping mode. The architecture includes a number of digital power amplifier (DPA) and modulation reconfigurable circuit segments to process individual bits of a data bit stream in parallel according to a specific circuit configuration corresponding to the selected TX mode using a multiplexer to switch between configurations.
Claims20
A digital transmitter circuit adapted to transmit a multi-gigabit per second data signal at millimeter wave frequencies, the digital transmitter comprising:
- digital power amplifier (DPA) and modulation circuitry comprising:
- a plurality of bit-segmented modulation driver circuits arranged in parallel and configured to modulate a digital data signal on an RF carrier to form a transmit (TX) signal in separate amplitude modulation (AM) and phase modulation (PM) paths, the DPA and modulation circuitry containing selectable circuits to form the transmit signal in one of a spectral shaping TX mode or a high resolution modulation TX mode.
A device for a transmitter having digital transmit (TX) circuitry to transmit a multi-gigabit per second data signal at millimeter wave frequencies, the device comprising a memory storing machine executable instructions;
- and
- a processing circuit including at least one processor to retrieve and execute the machine executable instructions and cause the at least one processor to:
- identify a mode of transmission to transmit between a spectral shaping TX mode or high resolution TX mode;
- and
- signal the transmitter and cause the digital TX circuitry to:
- amplify and modulate a digital data signal on an RF carrier to form a transmit signal using a plurality of separate and parallel bit-segmented amplitude modulation (AM) and phase modulation (PM) reconfigurable driver circuits;
- and
- select a configuration of the reconfigurable driver circuits to form the transmit signal based on the identified mode of transmission.
A user equipment (UE) comprising:
- a digital transmitter including transmit circuitry configured to transmit a multi-gigabit per second data signal modulated on an RF carrier at millimeter wave frequencies and reconfigurable to form a transmit (TX) signal in either one of a high-resolution modulation TX mode and a spectral shaping TX mode;
- and a transmit mode control circuit communicatively coupled with the digital transmitter and configured to signal the digital transmitter to select which TX mode to use, the transmit circuitry comprising a number of digital power amplifier (DPA) and modulation reconfigurable circuit segments to process the data signal on a per bit basis in parallel, to form the TX signal according to the selected TX mode.
Dependencies are inferred from the claim text.