US 11,695,447 B2
Communication device and method of operating the same
Srivathsa Masthi Parthasarathi, Bangalore (IN); Brian Charles Cassidy, Graz (AT); Atmaram Kota Rajaram, Bengaluru (IN); Ghiath Al-kadi, Graz (AT); and Hendrik Ahlendorf, Munich (DE)
Assigned to NXP B.V., Eindhoven (NL)
Filed by NXP B.V., Eindhoven (NL)
Filed on Jun. 3, 2021, as Appl. No. 17/303,625.
Claims priority of application No. 20180455 (EP), filed on Jun. 17, 2020.
Prior Publication US 2021/0399761 A1, Dec. 23, 2021
Int. Cl. H04B 1/7163 (2011.01); H04B 7/06 (2006.01); H04W 84/12 (2009.01)
CPC H04B 1/7163 (2013.01) [H04B 7/0602 (2013.01); H04W 84/12 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A communication device, comprising:
an ultra-wideband, UWB, communication device configured to set up a UWB communication channel with a first external communication device;
a further communication device configured to set up a further communication channel with a second external communication device; and
an antenna configured to be selectively used by the UWB communication device and the further communication device;
wherein the UWB communication device is operatively coupled to the further communication device, wherein the further communication device is configured to grant the UWB communication device access to said antenna in response to receiving a critical grant request from the UWB communication device,
wherein the UWB communication device is configured to transmit the critical grant request to the further communication device after a predetermined number of consecutive failed normal priority communication attempts, wherein the critical grant request is not denied after the failed normal priority communication attempts, and
wherein the critical grant request is made using a critical grant request message transmitted from the UWB communication unit to the further communication unit requests access to the antenna by the UWB communication device has an advance grant duration parameter bit field that specifies a time that will elapse between a time of the request and a time at which the UWB communication device receives access to the antenna, and an active grant duration parameter bit field that specifies an amount of time that the UWB communication device needs for completing a ranging round including a plurality of ranging operations with a plurality of external responder nodes.