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公开(公告)号：US20170265191A1
公开(公告)日：2017-09-14
申请号：US15067380
申请日：2016-03-11
Applicant: Nokia Technologies Oy
Inventor： Wessam Afifi Ahmed , Enrico-Henrik Rantala , Eric Torkildson , Sayantan Choudhury , Esa Juhani Tuomaala
CPC classification number: H04W72/0453 , H04W72/10 , H04W74/0808 , H04W74/0875
Abstract: A wireless network having one or more access points and one or more stations may improve spectrum efficiency for uplink transmissions by assigning a plurality of stations to a channel (or subchannel), each with a different priority. A channel may be assigned to a first station with the first priority, a second station with a second priority, and so on (e.g., instead of assigning the channel to just one station). An access point may transmit information indicative of the channel assignments, priorities, and other information used by stations to perform uplink transmissions. If a station with the highest priority receives the data from the access point, it may start transmission. A station with a lower priority may listen, during a listening period, to the same channel and determine whether the higher priority station started transmission during the listening period. If the higher priority station did not start transmission during the listening period, the lower priority station may transmit uplink data to the access point.
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公开(公告)号：US11660008B2
公开(公告)日：2023-05-30
申请号：US15869587
申请日：2018-01-12
Applicant: Nokia Technologies Oy
Inventor： Durgaprasad Shamain , Klaus Doppler , Swetha Muniraju , Eric Torkildson
IPC: A61B5/021 , A61B5/0285 , A61B5/00 , A61B5/0507 , A61B5/02 , A61B5/024
CPC classification number: A61B5/02125 , A61B5/0059 , A61B5/024 , A61B5/02007 , A61B5/0285 , A61B5/02108 , A61B5/0507 , A61B5/725 , A61B5/7253
Abstract: A method and a system for determining an in vivo transit distance and a corresponding transit time for an arterial pulse. An example system comprises a radar receiver connected to a processor to perform time-resolved measurements of reflections of wave pulses and to spectrally filter the reflections to select spectral components associated with the arterial pulse. The resulting signal samples are then organized into groups corresponding to different wave pulses, and the groups are processed to identify samples corresponding to a first arterial pulse point and a second arterial pulse point on the body of a subject, and the identified samples are further processed to determine the in vivo transit distance and the corresponding transit time for the arterial pulse. In some embodiments, a collection of arterial pulse points detected by the measurements may be mapped onto a reference constellation for a more-accurate determination of the in vivo transit distance.
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公开(公告)号：US11019621B2
公开(公告)日：2021-05-25
申请号：US15067380
申请日：2016-03-11
Applicant: Nokia Technologies Oy
Inventor： Wessam Afifi Ahmed , Enrico-Henrik Rantala , Eric Torkildson , Sayantan Choudhury , Esa Juhani Tuomaala
Abstract: A wireless network having one or more access points and one or more stations may improve spectrum efficiency for uplink transmissions by assigning a plurality of stations to a channel (or subchannel), each with a different priority. A channel may be assigned to a first station with the first priority, a second station with a second priority, and so on (e.g., instead of assigning the channel to just one station). An access point may transmit information indicative of the channel assignments, priorities, and other information used by stations to perform uplink transmissions. If a station with the highest priority receives the data from the access point, it may start transmission. A station with a lower priority may listen, during a listening period, to the same channel and determine whether the higher priority station started transmission during the listening period. If the higher priority station did not start transmission during the listening period, the lower priority station may transmit uplink data to the access point.
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