Radio terminal unit and radio communication system

Details Radio terminal unit and radio communication system Radio terminal unit and radio communication system

2008-04-22

2008-04-22

Gary, Erika A. (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C370S514000, C455S509000

Reexamination Certificate

active

10784871

ABSTRACT:
A radio terminal unit and a radio communication system, enabling power savings, the improvement of the quality of real-time communication, and the reduction of transmission delays. An operation mode determination section determines whether real-time processing is necessary or unnecessary based on parameters of all active communication applications set by a communication application section. When real-time processing is necessary, a communication control section transmits a PS-Poll as a control packet for requesting delivery of packets to a radio base station, and turns on the power of a radio interface section so as to receive packets buffered by the radio base station. When real-time processing is unnecessary, the communication control section turns off the power of the radio interface section, and carries out intermittent receiving operation based on beacons transmitted from the radio base station.

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Hideaki Maruyama et al., “Proposal of Communication Control Technique for Power Saving on Wireless Environment”, IPSJ Symposium Series, Information Porcessing Society of Japan, vol. 2001, No. 16, Nov. 19, 2001, pp. 25-32.

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