Wireless data communication system
First Claim
Patent Images
1. A communication system comprising:
- timer means for waiting response from a recipient; and
higher order layer protocol control means for extending said timer means, in accordance with data outputted from a lower order layer protocol controller depending upon resynchronization in a wireless data transfer protocol.
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Abstract
When a CRC error is detected by a PIAFS protocol controller during data transferring, the PIAFS protocol controller starts a resynchronization sequence and informs a TCP/IP protocol controller of starting of resynchronization. In the TCP/IP protocol controller, when the starting of resynchronization is informed after a retransmission timer is started, the retransmission timer is stopped temporarily, and, in a condition that the retransmission timer is stopped temporarily, completion of resynchronization is informed from the PIAFS protocol controller, the retransmission timer which was stopped temporarily is re-started.
20 Citations
13 Claims
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1. A communication system comprising:
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timer means for waiting response from a recipient; and higher order layer protocol control means for extending said timer means, in accordance with data outputted from a lower order layer protocol controller depending upon resynchronization in a wireless data transfer protocol. - View Dependent Claims (2, 3, 4, 5)
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6. A communication system comprising:
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timer means for waiting response from a recipient; and higher order layer protocol control means for stopping said timer means, in accordance with data outputted from a lower order layer protocol controller depending upon resynchronization in a wireless data transfer protocol.
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7. A communication system comprising:
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lower order layer protocol control means for controller a wireless data transfer protocol; and higher order layer protocol control means for extending a time period for waiting response from a recipients in accordance with data outputted from a lower order layer protocol control means depending upon resynchronization in a wireless data transfer protocol.
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8. A method for controlling a higher order layer protocol, comprising the steps of:
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waiting response from a recipient; and extending a time period for waiting the response from the recipient, in accordance with data outputted from a lower order layer protocol controller depending upon resynchronization in a wireless data transfer protocol. - View Dependent Claims (9, 10, 11, 12)
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13. A control program recorded on a computer-readable medium for controlling a higher order layer protocol, comprising the steps of:
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waiting response from a recipient; and extending a time period for waiting the response from the recipients, in accordance with data outputted from a lower order layer protocol controller depending upon resynchronization in a wireless data transfer protocol.
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Specification