Radio communication system using a frequency hopping method and

Details Radio communication system using a frequency hopping method and Radio communication system using a frequency hopping method and

1997-03-27

2000-11-07

Pham, Chi H.

Pulse or digital communications

Spread spectrum

Frequency hopping

370329, A61F 206, H04L 2730

Patent

active

061446939

ABSTRACT:
In a radio communication system with a radio control apparatus in radio communication with radio communication apparatus, a frequency hopping method is used in which the frequencies of a hopping pattern are determined by the radio control apparatus. When the frequencies of the hopping pattern are redetermined, the radio communication apparatus is intstructed to end intermittent reception and is notified of the reconfigured hopping pattern. In response to the instruction, the radio communication apparatus ends intermittent reception and shifts to a state of receiving the notification of the hopping pattern from the radio control apparatus. The frequency for performing intermittent reception is based on the relationship between the period of the notified hopping pattern and the time interval of intermittent reception. These arrangements result in reduction of the time required until the radio communication apparatus can perform frequency hopping communication and electric power consumption of the radio communication apparatuses.

REFERENCES:
patent: 5339331 (1994-08-01), Beauchamp et al.
patent: 5528622 (1996-06-01), Cadd et al.
patent: 5537434 (1996-07-01), Persson et al.
patent: 5701584 (1997-12-01), Dupuy
patent: 5870391 (1999-02-01), Nago

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