Messaging communication protocol

A method of communicating messages between a messaging server and a remote device comprising:

• establishing a connection between the remote device and the messaging server by the remote device transmitting a preamble frame;
• exchanging a data frame between the remote device and the messaging server;
• detecting an error in the data frame;
• correcting the error in the data frame, if the error is correctable;
• re-transmitting the data frame, if the error is uncorrectable;
• wherein correcting the error in the data frame comprises:
• extracting a code word from the data frame comprising an encoded data packet;
• computing a syndrome of the codeword;
• looking up the syndrome in a error location look-up table to determine a bit position of a erroneous bit;
• and
• correcting the erroneous bit, if correctable.

A method of communicating messages between a messaging server and a remote device comprising:

• establishing a connection between the remote device and the messaging server by the remote device transmitting a preamble frame;
• exchanging a data frame between the remote device and the messaging server;
• detecting an error in the data frame;
• correcting the error in the data frame, if the error is correctable;
• re-transmitting the data frame, if the error is uncorrectable;
• wherein correcting the error in the data frame comprises, performing erasure correction of a retransmitted data frame, if both original and retransmitted data frames have uncorrectable errors.

A method of communicating messages between a messaging server and a remote device comprising:

• establishing a connection between the remote device and the messaging server by the remote device transmitting a preamble frame;
• exchanging a data frame between the remote device and the messaging server;
• detecting an error in the data frame;
• correcting the error in the data frame, if the error is correctable;
• re-transmitting the data frame, if the error is uncorrectable;
• wherein correcting the error in the data frame comprises:
• extracting a decoded data packet from the data frame;
• performing a CRC check on the decoded data packet, wherein the decoded data packet has correctable errors and has parity bits removed;
• and
• indicating that an uncorrectable error has occurred, if CRC check bits are not all zero.

A method of communicating messages between a messaging server and a remote device comprising:

• establishing a connection between the remote device and the messaging server by the remote device transmitting a preamble frame;
• detecting an error in the preamble frame;
• correcting the error in the preamble frame, if the error is correctable;
• re-transmitting the preamble frame, if the error is uncorrectable;
• exchanging a data frame between the remote device and the messaging server;
• detecting an error in the data frame;
• correcting the error in the data frame, if the error is correctable;
• and
• re-transmitting the data frame, if the error is uncorrectable.

A method for error detection and correction during a data exchange between a messaging server and a remote device comprising:

• analyzing a data packet type for errors;
• decoding an encoded data packet wherein the decoding is BCH decoding;
• performing erasure correction, if an original and retransmitted decoded data packets have uncorrectable errors;
• performing majority bit combining and BCH decoding, if there are at least two retransmissions and the original and both retransmitted decoded data packets have uncorrectable errors;
• analyzing CRC check bits on the result packets wherein parity bits have been removed;
• and
• sending ACK, if the errors can be corrected.

A method of communicating messages over a telephone network between a messaging server and a remote device comprising:

• establishing a connection between the remote device and the messaging server, wherein the establishing comprises:
• transmitting a preamble frame from the remote device to the messaging server, wherein the preamble frame comprises multiple copies of a preamble body;
• analyzing the preamble frame for preamble errors, wherein the preamble errors are preamble forward error detected and corrected;
• retransmitting the preamble frame, if the preamble errors are uncorrectable;
• and
• transmitting a preamble acknowledgment frame, if the preamble frame has no uncorrectable preamble errors;
• transmitting a series of remote device data frames from the remote device to the messaging server;
• analyzing the series of remote device data frames for remote device data errors, wherein the errors are data forward error detected and corrected, and the remote device data frames are retransmitted, if the errors are uncorrectable;
• transmitting to the remote device a series of remote device acknowledgment frames, if the remote device frames have no uncorrectable remote device data errors;
• transmitting from the remote device to the messaging server a ready frame indicating that the remote device is ready to receive data;
• transmitting a series of messaging server data frames from the messaging server to the remote device;
• analyzing the messaging server data frames for server data errors, wherein the server data errors are data forward error detected and corrected, and retransmitting the messaging server data frames, if the server data errors are uncorrectable;
• and
• transmitting to the messaging server a series of messaging server acknowledgment frames, if the messaging server data frames have no uncorrectable server data errors.

A computer program product for communicating messages over a telephone network between a messaging server and a remote device comprising:

• code for establishing a connection between the remote device and the messaging server, wherein the establishing comprises:
• code for transmitting a preamble frame from remote device to the messaging server, wherein the preamble frame comprises multiple copies of the preamble body;
• code for analyzing the preamble frame for errors, wherein the errors are preamble forward error detected and corrected;
• code for retransmitting the preamble frame, if the errors are uncorrectable;
• and
• code for transmitting a preamble acknowledgment frame, if the preamble frame has no uncorrectable errors;
• code for transmitting a series of remote device data frames from the remote device to the messaging server;
• code for analyzing the remote device data frames for errors, wherein the errors are data forward error detected and corrected, and the remote device data frames are retransmitted, if the errors are uncorrectable;
• code for transmitting to the remote device a series of remote device acknowledgment frames, if the remote device frames have no uncorrectable errors;
• code for transmitting from the remote device to the messaging server a ready frame indicating that the remote device is ready to receive data;
• code for transmitting a series of messaging server data frames from the messaging server to the remote device;
• code for analyzing the messaging server data frames for errors, wherein the errors are data forward error detected and corrected, and the messaging server data frames are retransmitted, if the errors are uncorrectable;
• code for transmitting to the messaging server a series of messaging server acknowledgment frames, if the messaging server data frames have no uncorrectable errors;
• and
• a computer readable storage medium for holding the codes.