Method for transmitting useful information between two terminals and method for generating an association table used in the context of the transmission
AssigneeSigfox
InventorsMarc Vertes, Cedric Artigue, Nicolas Chalbos
Life of this patent
Estimating the term…
Abstract
A method for transmitting useful information between a transmitting terminal and a receiving terminal connected via a transmission channel. The transmitting terminal defines control information for the useful information, and searches in an association table, which is accessible from the transmitting terminal, for a frame-synchronization word associated with the control information. The transmitting terminal generates a frame of data from the useful information, and transmits, over the transmission channel, a data stream that includes the frame-synchronization word and the frame of data.
Claims5
A method for generating an association table between frame synchronization words and control information items, comprising the steps of:
- defining all possible control information items;
- defining a set of frame synchronization words according to a number of possible control information items by:
- defining a length L of the frame synchronization word according to the number of possible control information items such that the length L is sufficient to distinguish all the possible control information items;
- listing a set of permutations of a word of the length L to obtain a set of raw words;
- and
- filtering the set of raw words to obtain the set of frame synchronization words;
- and
- associating, with each possible control information item, a frame synchronization word in the set of frame synchronization words.
Dependencies are inferred from the claim text.