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1. WO2013103690 - SAR CONTROL USING CAPACITIVE SENSOR AND TRANSMISSION DUTY CYCLE CONTROL IN A WIRELESS DEVICE

Publication Number WO/2013/103690
Publication Date 11.07.2013
International Application No. PCT/US2013/020105
International Filing Date 03.01.2013
IPC
H04B 1/38 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H04W 52/28 2009.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
04Transmission power control
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
CPC
H04B 1/3838
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
3827Portable transceivers
3833Hand-held transceivers
3838Arrangements for reducing RF exposure to the user, e.g. by changing the shape of the transceiver while in use
H04W 52/28
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
H04W 52/283
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
283Power depending on the position of the mobile
H04W 52/288
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
18TPC being performed according to specific parameters
28using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
288taking into account the usage mode, e.g. hands-free, data transmission, telephone
H04W 52/367
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
04TPC
30using constraints in the total amount of available transmission power
36with a discrete range or set of values, e.g. step size, ramping or offsets
367Power values between minimum and maximum limits, e.g. dynamic range
H04W 88/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
88Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
02Terminal devices
Applicants
  • HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
  • SHI, Ping [CN]/[US] (US)
Inventors
  • SHI, Ping
Agents
  • CONLEY ROSE P.C.
Priority Data
13/343,28104.01.2012US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SAR CONTROL USING CAPACITIVE SENSOR AND TRANSMISSION DUTY CYCLE CONTROL IN A WIRELESS DEVICE
(FR) DISPOSITIF SANS FIL DE CONTRÔLE DU DÉBIT D'ABSORPTION SPÉCIFIQUE À L'AIDE D'UN CAPTEUR DE CAPACITÉ ET DE CONTRÔLE DU CYCLE DE FONCTIONNEMENT LIMITÉ
Abstract
(EN) A wireless device for providing specific absorption rate (SAR) control comprising a wireless transmitter, a capacitance sensor, and a processor coupled to the wireless transmitter and the capacitance sensor, wherein the processor is configured to receive a first capacitance measurement from the capacitance sensor, estimate a relative proximity of a human body to the apparatus based on the measurement, determine a target transmission time for the wireless transmitter within a time period based on the estimate, and switch off the wireless transmitter for a portion of the time period if a transmission time of the wireless transmitter during the time period exceeds the target transmission time.
(FR) La présente invention porte sur un dispositif sans fil de contrôle du débit d'absorption spécifique (SAR) comprenant un émetteur sans fil, un capteur de capacité et un processeur couplé à l'émetteur sans fil et au capteur de capacité, le processeur étant configuré de manière à recevoir une première mesure de capacité du capteur de capacité, à estimer une distance relative entre un corps humain et l'appareil en fonction de la mesure, à déterminer un temps de transmission cible pour l'émetteur sans fil dans une période de temps déterminée en fonction de l'estimation, et à mettre hors tension l'émetteur sans fil pendant une partie de la période de temps si le temps de transmission de l'émetteur sans fil pendant la période de temps dépasse le temps de transmission cible.
Latest bibliographic data on file with the International Bureau