Systems and methods for establishing a diagnostic transmission mode and communicating over the same
First Claim
1. A system for communicating data between modems using multicarrier modulation comprising:
- an initiate diagnostic mode trigger that instructs a transmitting modem to forward an initiate diagnostic mode message to a receiving modem;
a message determination device that determines a diagnostic link message; and
a receiving modem diagnostic device that receives the diagnostic link message and determines the accuracy of the diagnostic link message, wherein the diagnostic link message is re-transmitted a predetermined number of times.
2 Assignments
0 Petitions
Accused Products
Abstract
Upon detection of a trigger, such as the exceeding of an error threshold or the direction of a user, a diagnostic link system enters a diagnostic information transmission mode. This diagnostic information transmission mode allows for two modems to exchange diagnostic and/or test information that may not otherwise be exchangeable during normal communication. The diagnostic information transmission mode is initiated by transmitting an initiate diagnostic link mode message to a receiving modem accompanied by a cyclic redundancy check (CRC). The receiving modem determines, based on the CRC, if a robust communications channel is present. If a robust communications channel is present, the two modems can initiate exchange of the diagnostic and/or test information. Otherwise, the transmission power of the transmitting modem is increased and the initiate diagnostic link mode message re-transmitted to the receiving modem until the CRC is determined to be correct.
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Citations
18 Claims
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1. A system for communicating data between modems using multicarrier modulation comprising:
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an initiate diagnostic mode trigger that instructs a transmitting modem to forward an initiate diagnostic mode message to a receiving modem; a message determination device that determines a diagnostic link message; and a receiving modem diagnostic device that receives the diagnostic link message and determines the accuracy of the diagnostic link message, wherein the diagnostic link message is re-transmitted a predetermined number of times. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A modem for communicating data using multicarrier modulation comprising:
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transmitting, by a transmitter portion of the modem, an initiate diagnostic mode message; and receiving, by a receiver portion of the modem, a diagnostic link message and determining the accuracy of the diagnostic link message, wherein the diagnostic link message is re-transmitted a predetermined number of times. - View Dependent Claims (14)
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15. A modem for communicating data using multicarrier modulation comprising:
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a receiver portion of the modem that receives an initiate diagnostic mode message; a message determination module in the modem that determines a diagnostic link message; and a transmitter portion of the modem that transmits a diagnostic link message, wherein the diagnostic link message is re-transmitted a predetermined number of times.
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16. A method for communicating data using multicarrier modulation comprising:
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transmitting, by a transmitter portion of a modem, an initiate diagnostic mode message; receiving, by a receiving portion of the modem, a diagnostic link message and determining the accuracy of the diagnostic link message, wherein the diagnostic link message has been re-transmitted a predetermined number of times. - View Dependent Claims (17)
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18. A method for communicating data using multicarrier modulation comprising:
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receiving, by a receiver portion of a modem, an initiate diagnostic mode message; determining, by a message determination module in the modem, a diagnostic link message; and transmitting, by a transmitter portion of the modem, a diagnostic link message, wherein the diagnostic link message is re-transmitted a predetermined number of times.
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Specification