公开(公告)号：US10746545B2

公开(公告)日：2020-08-18

申请号：US15609981

申请日：2017-05-31

申请人： Intel Corporation

发明人： Peter Fleming

IPC分类号： G01C5/06 ,  H04W4/35 ,  H04W4/33 ,  H04W4/02 ,  G01C21/20 ,  G01L13/06 ,  G01S19/45

摘要： Altitude determining circuitry for use in a User Equipment (UE) of a wireless communication network is provided. The circuitry comprises a receiver to receive at least one pressure parameter representative of a plurality of indoors pressure measurements from a respective plurality of indoors pressure measurement units located inside a building at different altitudes. The altitude determining circuitry also has processing circuitry to receive from a pressure sensor in the User Equipment a local pressure measurement at the UE and the processor determines an indoors altitude of the UE using the at least one pressure parameter and the UE local pressure. An integrated circuit for a Global Navigate Satellite System comprising the altitude determining circuitry and an indoors pressure measurement unit having a sensor for making a pressure measurement and a transmitter for transmitting the pressure measurement to the UE or to a further indoors pressure measurement unit are also provided.

公开(公告)号：US09778369B2

公开(公告)日：2017-10-03

申请号：US14309985

申请日：2014-06-20

申请人： Intel Corporation

发明人： Peter Fleming ,  Geraint Ffoulkes-Jones ,  Gerald Whitworth

IPC分类号： G01S19/42 ,  G01S5/02 ,  G01S19/22 ,  G01S19/26 ,  G01S19/28 ,  G01S19/52 ,  G01S19/46 ,  G01S19/47

CPC分类号： G01S19/428 ,  G01S5/0273 ,  G01S19/22 ,  G01S19/26 ,  G01S19/28 ,  G01S19/46 ,  G01S19/47 ,  G01S19/52

摘要： A positioning system operates by first determining that a user is pedestrian, and then estimating a speed of the user. Having tracked a first signal from one radio transmitter whose position is known, the system attempts to detect additional signals from the one transmitter, in a search space such that the first signal and the or each additional signal are consistent with the estimated speed of the user and with one or more of the signals having been reflected off a reflector in the vicinity of the user. One or more detected additional signals from the one transmitter are then tracked, and candidate measurements, derived from the first signal and the one or more detected additional signals, are provided for use when estimating the position and/or velocity of the user.