Patent classifications
H04B1/7183
IMPULSE WIRELESS COMMUNICATION SYSTEM
An impulse wireless communication system includes an oscillation signal generator that generates a plurality of oscillation signals having a delay interval with each other and having the same phase and amplitude or different phases and amplitudes, an envelope signal generator that extracts a sync signal and a data signal making up communication signal data and generates an envelope signal for the sync signal and an envelope signal for the data signal, a signal synthesizer that synthesizes the plurality of oscillation signals with the envelope signals, an envelope signal extractor that extracts a plurality of modulation envelope signals from the impulse signal, an amplitude phase determiner that determines the phase and the amplitude in the plurality of modulation envelope signals based on the plurality of oscillation signals, and a calculator that extracts the envelope signals from the plurality of modulation envelope signals based on the phase and the amplitude.
IMPULSE WIRELESS COMMUNICATION SYSTEM
An impulse wireless communication system includes an oscillation signal generator that generates a plurality of oscillation signals having a delay interval with each other and having the same phase and amplitude or different phases and amplitudes, an envelope signal generator that extracts a sync signal and a data signal making up communication signal data and generates an envelope signal for the sync signal and an envelope signal for the data signal, a signal synthesizer that synthesizes the plurality of oscillation signals with the envelope signals, an envelope signal extractor that extracts a plurality of modulation envelope signals from the impulse signal, an amplitude phase determiner that determines the phase and the amplitude in the plurality of modulation envelope signals based on the plurality of oscillation signals, and a calculator that extracts the envelope signals from the plurality of modulation envelope signals based on the phase and the amplitude.
ULTRA-WIDEBAND DEVICE FOR TRANSMITTING/RECEIVING MULTIPLE PACKETS AND METHOD FOR OPERATING SAME
A method for operating a first ultra-wideband (UWB) device according to an embodiment of the disclosure may include: transmitting, in a first slot within a ranging round, a ranging control message for UWB communication; receiving a first packet transmitted by a second UWB device in a second slot within the ranging round based on the ranging control message; and receiving a second packet transmitted by a third UWB device in the second slot within the ranging round based on the ranging control message.
ULTRA-WIDEBAND DEVICE FOR TRANSMITTING/RECEIVING MULTIPLE PACKETS AND METHOD FOR OPERATING SAME
A method for operating a first ultra-wideband (UWB) device according to an embodiment of the disclosure may include: transmitting, in a first slot within a ranging round, a ranging control message for UWB communication; receiving a first packet transmitted by a second UWB device in a second slot within the ranging round based on the ranging control message; and receiving a second packet transmitted by a third UWB device in the second slot within the ranging round based on the ranging control message.
Systems and methods for ultra wideband impulse radio transceivers
Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.
Systems and methods for ultra wideband impulse radio transceivers
Ultra-Wideband (UWB) technology exploits modulated coded impulses over a wide frequency spectrum with very low power over a short distance for digital data transmission. Today's leading edge modulated sinusoidal wave wireless communication standards and systems achieve power efficiencies of 50 nJ/bit employing narrowband signaling schemes and traditional RF transceiver architectures. However, such designs severely limit the achievable energy efficiency, especially at lower data rates such as below 1 Mbps. Further, it is important that peak power consumption is supportable by common battery or energy harvesting technologies and long term power consumption neither leads to limited battery lifetimes or an inability for alternate energy sources to sustain them. Accordingly, it would be beneficial for next generation applications to exploit inventive transceiver structures and communication schemes in order to achieve the sub nJ per bit energy efficiencies required by next generation applications.
Varying device identities
A communication device comprises a memory for storing a device identity; a data transmitter for supporting communication links with other devices; and a communication controller, wherein the controller is configured to periodically vary the stored device identity and to cause the data transmitter to periodically transmit the stored device identity so that the device can be identified.
COMMUNICATION DEVICE AND OPERATING METHOD
In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) transceiver configured to communicate with an external communication device; a processing unit configured to switch the UWB transceiver between different transceiver modes of operation while the UWB transceiver receives or transmits a data frame; wherein the different transceiver modes of operation include a ranging mode, an angle-of-arrival (AoA) mode and/or a radar mode. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
COMMUNICATION DEVICE AND OPERATING METHOD
In accordance with a first aspect of the present disclosure, a communication device is provided, comprising: an ultra-wideband (UWB) transceiver configured to communicate with an external communication device; a processing unit configured to switch the UWB transceiver between different transceiver modes of operation while the UWB transceiver receives or transmits a data frame; wherein the different transceiver modes of operation include a ranging mode, an angle-of-arrival (AoA) mode and/or a radar mode. In accordance with a second aspect of the present disclosure, a corresponding method of operating a communication device is conceived. In accordance with a third aspect of the present disclosure, a corresponding computer program is provided.
Intermittent UWB receiver
A UWB impulse receiver including an RF stage followed by a baseband processing stage. The baseband processing stage includes a Rake filter including a plurality of time fingers, each finger including an integrator of the baseband signal during an acquisition window, a control module, and a detection module estimating the received symbols from the integration results. During a synchronization phase, the control module drives respective positions of the acquisition windows associated with the different fingers, to scan at a reception interval, the RF stage only operating, in a course of the synchronization phase, during the plurality of acquisition windows.