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1. WO2012061414 - ADAPTIVE ANTENNA DIVERSITY SYSTEM

Publication Number WO/2012/061414
Publication Date 10.05.2012
International Application No. PCT/US2011/058821
International Filing Date 01.11.2011
IPC
H04W 52/02 2009.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management
02Power saving arrangements
H04B 7/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
CPC
H04B 7/0825
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0802using antenna selection
0825with main and with auxiliary or diversity antennas
H04B 7/0874
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0868Hybrid systems, i.e. switching and combining
0874using subgroups of receive antennas
H04W 52/0245
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
WWIRELESS COMMUNICATION NETWORKS
52Power management, e.g. TPC [Transmission Power Control], power saving or power classes
02Power saving arrangements
0209in terminal devices
0225using monitoring of external events, e.g. the presence of a signal
0245according to signal strength
Y02D 30/70
Applicants
  • APPLE INC. [US]/[US] (AllExceptUS)
  • MAHE, Isabel, G. [CA]/[US] (UsOnly)
  • SHI, Jianxiong [CN]/[US] (UsOnly)
  • SONG, Kee-Bong [KR]/[US] (UsOnly)
  • HU, Ming [CN]/[US] (UsOnly)
  • BURCHILL, William, S. [CA]/[US] (UsOnly)
  • MUJTABA, Syed, A. [US]/[US] (UsOnly)
  • SEBENI, Johanson, O. [CA]/[US] (UsOnly)
  • ZHANG, Haining [CA]/[US] (UsOnly)
Inventors
  • MAHE, Isabel, G.
  • SHI, Jianxiong
  • SONG, Kee-Bong
  • HU, Ming
  • BURCHILL, William, S.
  • MUJTABA, Syed, A.
  • SEBENI, Johanson, O.
  • ZHANG, Haining
Agents
  • HOOD, Jeffrey C.
Priority Data
12/941,00805.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ADAPTIVE ANTENNA DIVERSITY SYSTEM
(FR) SYSTÈME DE DIVERSITÉ D'ANTENNES ADAPTATIF
Abstract
(EN)
Electronic devices may be provided that contain wireless communications circuitry. The wireless communications circuitry may include radio-frequency transceiver circuitry with first and second ports that are coupled by switching circuitry to first and second antennas. A first receiver in the transceiver circuitry may be associated with the first port and a second receiver in the transceiver circuitry may be associated with the second port. An electronic device may be operated in a single receiver mode in which only one of the receivers is active to conserve power or a dual receiver mode in which signals from both antennas may be received in parallel to compare antenna performance. Based on antenna performance metrics, the electronic device may adjust the switching circuitry to ensure that an optimal antenna is being used.
(FR)
La présente invention concerne des dispositifs électroniques qui contiennent un circuit de communication sans fil. Le circuit de communication sans fil peut comprendre un circuit émetteur-récepteur radiofréquence avec un premier et un second port qui sont couplés par un circuit de commutation à des première et seconde antennes. Un premier récepteur dans le circuit émetteur-récepteur peut être associé au premier port et un second récepteur dans le circuit émetteur-récepteur peut être associé au second port. Un dispositif électronique peut fonctionner dans un mode mono-récepteur, dans lequel seulement l'un des récepteurs est actif afin d'économiser la puissance, ou dans un mode à deux récepteurs, dans lequel des signaux provenant des deux antennes peuvent être reçus en parallèle afin de comparer le rendement des antennes. Sur la base de mesures de performance des antennes, le dispositif électronique peut régler le circuit de commutation afin de garantir l'utilisation de l'antenne optimale.
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