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Title:
MOVEMENT SENSOR USES IN COMMUNICATION SYSTEMS
Document Type and Number:
Japanese Patent JP2014090475
Kind Code:
A
Abstract:

To provide mobile devices utilizing motion and/or position sensors for improving operating performance and/or power efficiency.

A method in a mobile device includes: receiving movement information; establishing movement data on the basis of the movement information; determining if the mobile device is stationary using the movement data; and reducing the frequency of searching for a base station when the mobile device is stationary. In another example, a mobile device which reduces power consumption on the basis of movement data includes: an RF front end; a receiver coupled to the RF front end; a data demodulator coupled to the receiver; a searcher, coupled to the RF front end and the receiver, which searches for base stations; and a processing unit, coupled to the searcher, which controls the searcher on the basis of the stationarity of the mobile device.


Inventors:
CHRISTINA A SEIBERT
DOUGLAS NAEL ROWITCH
PARVATHANATHAN SUBRAHMANYA
SHEYNBLAT LEONID
Application Number:
JP2013264410A
Publication Date:
May 15, 2014
Filing Date:
December 20, 2013
Export Citation:
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Assignee:
QUALCOMM INC
International Classes:
H04W52/02; G01S19/52; H04W48/16
Domestic Patent References:
JP2005521361A2005-07-14
JPH04373288A1992-12-25
JPH1198071A1999-04-09
JP2004159284A2004-06-03
JP2006526966A2006-11-24
JP2001127692A2001-05-11
JPH05232210A1993-09-07
JP2006229692A2006-08-31
JPH07212299A1995-08-11
JP2006203613A2006-08-03
JP2006518167A2006-08-03
JP2004364124A2004-12-24
JP2000261358A2000-09-22
JP2005521361A2005-07-14
JPH04373288A1992-12-25
JPH1198071A1999-04-09
JP2004159284A2004-06-03
JP2006526966A2006-11-24
Attorney, Agent or Firm:
Kurata Masatoshi
Yoshihiro Fukuhara
Nobuhisa Nogawa
Ryuji Mine
Naoki Kono
Katsu Sunagawa
Morisezo Iseki
Takao Ako
Tadashi Inoue
Tatsushi Sato
Takashi Okada
Mihoko Horiuchi