US 12,255,712 B2
Communication device and method of operation
Filippo Casamassima, Thal (AT); David Veit, Graz (AT); Dorian Haslinger, Nestelbach bei Graz (AT); and Wolfgang Eber, Graz (AT)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Mar. 21, 2023, as Appl. No. 18/124,295.
Claims priority of application No. 22167808 (EP), filed on Apr. 12, 2022.
Prior Publication US 2023/0327720 A1, Oct. 12, 2023
Int. Cl. H04B 7/06 (2006.01); H04B 1/7163 (2011.01)
CPC H04B 7/0608 (2013.01) [H04B 1/7163 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A communication device, comprising:
an ultra-wideband (UWB) communication unit configured to carry out UWB communication with an external communication device that is movable relative to the UWB communication unit;
a plurality of antennas operatively coupled to said UWB communication unit;
at least one inertial sensor; and
an antenna selection unit configured to cause the UWB communication unit to perform a ranging operation with respect to the external communication device using the plurality of antennas, the antenna selection unit configured to determine a channel impulse response from one or more of the plurality of antennas and select a specific antenna of said plurality of antennas for carrying out the UWB communication based on the channel impulse response, the antenna selection unit is configured to determine a change in one or more of an orientation or a position based on an output of the inertial sensor and, when the change is greater than or equal to a predefined threshold, cause the UWB communication unit to perform a second ranging operation with respect to the external communication device using the plurality of antennas and optionally to select a different antenna of the plurality of antennas for subsequent UWB communications.