US 7,353,012 B2Granted

Wireless communication equipment and wireless communication method

AssigneeMatsushita Electric Indutrial Co., Ltd.

InventorsKentaro Miyano, Junji Sato

Life of this patent

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Abstract

If it is judged by a signal from a first signal processing unit that a signal of a first communication system is not received and it is judged by a signal from a second signal processing unit that a signal of a second communication system is received, wireless communication is performed by the second communication system. If it is judged that the signals of the first and the second communication systems are received, a system judging unit judges which communication system is to be used for the wireless communication, based on the signals from the first signal processing unit and the second signal processing unit. If the wireless communication is to be performed by the first communication system, diversity reception or transmission is performed by first and second antenna elements.

Claims16

Dependent claims

A wireless communication equipment, comprising:

a first antenna element and a second antenna element for receiving wireless signals;
a first signal processing unit for performing reception processing of a first wireless signal in a first communication system received by at least one of the first antenna element and the second antenna element;
a second signal processing unit for performing reception processing of a second wireless signal in a second communication system received by one antenna element of the first antenna element and the second antenna element other than the antenna element receiving the first wireless signal;
and
a system judging unit for comparing a receiving status of the first wireless signal in the first communication system with a receiving status of the second wireless signal in the second communication system and judging which of the first communication system or the second communication system is used for communication based on respective output signals from the first signal processing unit and the second signal processing unit, and
wherein when receiving a notification of selecting the first communication system from the system judging unit, a diversity by the first antenna element and the second antenna element is performed, and when receiving a notification of selecting the second communication system, wireless communication by the first antenna element or the second antenna element is performed.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/570,859Filed 8 Mar 2005
Priority: JP 2004-07045112 Mar 2004
Published: US 2007/0026827 A11 Feb 2007
Granted: 1 Apr 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04B 7/0802
At the receiving station: using antenna selection
H04B 1/0064
Adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges: with separate antennas for the…
H04B 7/0602
At the transmitting station: using antenna switching
H04W 88/06
Terminal devices: adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals