Method and system for detecting mobility of a wireless-capable modem to minimize data transfer rate renegotiations
First Claim
1. In a data communication system employing a wireless-capable modem transceiving data at a determined data transfer rate via a wireless transceiver, a method for revising and minimizing renegotiations of said data transfer rate when variations to the mobility of said wireless-capable modem are detected, said method comprising the steps of:
- a) executing a mobility detection process to determine variations to a signal-to-noise ratio (SNR) of said data received by said wireless-capable modem;
b) when said variations to said SNR exceed a mobility threshold, revising said data transfer rate from a stationary maximum data transfer rate to a mobile default data transfer rate to provide a sustained SNR during mobility of said wireless-capable modem; and
c) when variations to said SNR do not exceed said mobility threshold, revising said data transfer rate to said stationary maximum data transfer rate capable by said wireless-capable modem.
6 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for revising and minimizing renegotiations of a data transfer rate for wireless-capable modems transceiving data over a wireless communication channel via a wireless transceiver. When a wireless-capable modem presents a favorable signal-to-noise ratio resulting from a stationary or near stationary position, higher data transfer rates are employed for data exchange. When varying signal-to-noise ratios are detected designating mobility of the wireless-capable modem, then a reduced mobility data transfer rate is employed to provide a sustained data transfer rate for the duration of the mobility without oscillating between differing data transfer rates thereby incurring the significant renegotiation down-time due to fluctuating signal quality. The mobility detection and reduction in the data transfer rate to a more reliable level during mobility is performed automatically without user intervention.
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Citations
17 Claims
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1. In a data communication system employing a wireless-capable modem transceiving data at a determined data transfer rate via a wireless transceiver, a method for revising and minimizing renegotiations of said data transfer rate when variations to the mobility of said wireless-capable modem are detected, said method comprising the steps of:
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a) executing a mobility detection process to determine variations to a signal-to-noise ratio (SNR) of said data received by said wireless-capable modem; b) when said variations to said SNR exceed a mobility threshold, revising said data transfer rate from a stationary maximum data transfer rate to a mobile default data transfer rate to provide a sustained SNR during mobility of said wireless-capable modem; and c) when variations to said SNR do not exceed said mobility threshold, revising said data transfer rate to said stationary maximum data transfer rate capable by said wireless-capable modem. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless-capable modem for transceiving data via a wireless transceiver and capable of revising and minimizing renegotiations of a data transfer rate in response to variations in the mobility of said wireless-capable modem, comprising:
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a) a mobility detection process to determine variations to a signal-to-noise ratio (SNR) of said data received by said wireless-capable modem; and b) a data transfer rate negotiation process for revising said data transfer rate from a stationary maximum data transfer rate to a mobile default data transfer rate to provide a sustained SNR during mobility of said wireless-capable modem when said variations to said SNR exceed a mobility threshold, and when variations to said SNR do not exceed said mobility threshold, said data transfer rate negotiation process for revising said data transfer rate to said stationary maximum data transfer rate capable by said wireless-capable modem. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. In a data communication system employing a wireless-capable modem transceiving data at a determined data transfer rate via a wireless transceiver, a method for continuously detecting variations to the mobility of said wireless-capable modem, said method comprising the steps of:
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(a) continuously monitoring variations to a signal-to-noise ratio (SNR) value of a data signal being received by the wireless-capable modem; (b) identifying at least one mobility threshold boundary that indicates that a wireless-capable modem is in a mobile state; (c) comparing the monitored variations to the SNR value to the mobility threshold boundary; and (d) if the monitored variations to the SNR value exceeds the SNR threshold, determining that the wireless-capable modem is in a mobile state.
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Specification