Method and apparatus for wireless communication of digital data
AssigneePocketMail Inc.
InventorsWilliam A. Dunn, Eric C. Whittaker
Life of this patent
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Abstract
A method and apparatus for establishing a connection between a server and a remote device over a communication network. Data transmission is attempted at a first carrier frequency and bit rate. If transmission is unsuccessful, the bit rate is lowered. If transmission remains unsuccessful, the carrier frequency is changed to a second carrier frequency. As data transmission continues, the bit rate may be interactively increased or decreased in order to maximize data transfer throughput.
Claims20
A method for establishing a connection between a server and a remote device over a communication network comprising:
- sending a first setup information item by said remote device to said server using a first carrier frequency with a first narrow bandwidth;
- if no acknowledgment is received by said wireless remote device for said first setup information item, sending a second setup information item by said wireless remote device using a second carrier frequency with a second narrow bandwidth;
- and
- when an acknowledgment is received, sending data by said wireless remote device to said server using a selected carrier frequency, wherein the selected carrier frequency is responsive to which setup information item is acknowledged.
A method for establishing a connection between a server and a wireless remote device over a communication network comprising:
- sending a first setup information item by said wireless remote device to said server using a first modulation type and a first carrier frequency;
- if no acknowledgment is received by said wireless remote device for said first setup information item, sending a second setup information item by said wireless remote device using a second modulation type and a first carrier frequency;
- and
- when an acknowledgment is received, sending data by said wireless remote device to said server using a selected modulation type and a selected carrier frequency, wherein said selected modulation type and said selected carrier frequency are responsive to which setup information item is acknowledged.
A method for transferring data between a server and a wireless remote device over a communication network comprising:
- sending a first data item by said wireless remote device to said server using a first modulation type;
- if K non-acknowledgments are received by said wireless remote device for said first data item, sending said first data item by said wireless remote device to said server using a second modulation type, wherein K is an integer;
- and
- when an acknowledgment is received, sending a second data item by said wireless remote device to said server using a selected modulation type, wherein said selected modulation type is responsive to which modulation type is used when said first data item is acknowledged.
Dependencies are inferred from the claim text.