Patent ID: 7634285

Claim:
A channel access method based on a contention approach, which allocates plural sets of time slots in a predetermined contention interval, each set of time slots including plural adjacent overlapped time slots, the channel access method comprising the steps of: (A) a channel requester counting down a predetermined time; (B) when the predetermined time is reached, the channel requester transmitting a contention message having a header to a channel allocator at a time slot in accordance with an interleave method, which is provided to make the most significant bit of the odd time slot in each set of time slot be first transmitted and the least significant bit of the even time slot in each set of time slot be first transmitted, thereby making positions of the headers of the contention messages in the adjacent time slots of each set of time slot be different; (C) if the contention message transmitted by the channel requester collides with the contention message of the adjacent time slot, the channel allocator parsing the headers of the collided contention messages; and (D) the channel allocator respectively allocating plural special channel times for communicating with the channel requesters.