Methods and apparatuses for detecting transmission collision and/or alleviating transmission collision

A method for detecting a transmission collision between a first wireless communication terminal and a second wireless communication terminal, comprising:

• setting transmission timing of the second wireless communication terminal by different values including at least a first value and a second value;
• when the transmission timing of the second wireless communication terminal is set by the first value, obtaining a first count value by counting a number of retry packets include in first packets transmitted from the first wireless communication terminal;
• when the transmission timing of the second wireless communication terminal is set by the second value, obtaining a second count value by counting a number of retry packets included in second packets transmitted from the first wireless communication terminal;
• and
• detecting the transmission collision between the first wireless communication terminal and the second wireless communication terminal according to at least the first count value and the second count value.

A transmission collision detecting apparatus for detecting a transmission collision between a first wireless communication terminal and a second wireless communication terminal, comprising:

• a checking circuit, arranged for checking if at least one transmission collision condition is met and accordingly generating a checking result when one retry packet transmitted from the first wireless communication terminal is received by the second wireless communication terminal;
• a computing circuit, coupled to the checking circuit and arranged for deriving statistic data from a plurality of checking results generated in response to a plurality of retry packets transmitted from the first wireless communication terminal;
• and
• a detecting circuit, coupled to the computing circuit and arranged for detecting the transmission collision between the first wireless communication terminal and the second wireless communication terminal according to the statistic data.

A transmission collision detecting apparatus for detecting a transmission collision between a first wireless communication terminal and a second wireless communication terminal, comprising:

• a setting circuit, arranged for setting transmission timing of the second wireless communication terminal by different values including at least a first value and a second value;
• a counting circuit, arranged for obtaining a first count value by counting a number of retry packets include in first packets transmitted from the first wireless communication terminal when the transmission timing of the second wireless communication terminal is set by the first value;
• and obtaining a second count value by counting a number of retry packets included in second packets transmitted from the first wireless communication terminal when the transmission timing of the second wireless communication terminal is set by the second value;
• and
• a detecting circuit, coupled to the counting circuit and arranged for detecting the transmission collision between the first wireless communication terminal and the second wireless communication terminal according to at least the first count value and the second count value.