Multi-channel user access method

The invention discloses a multi-channel user access method, and relates to the technical field of wireless access networks, and the method comprises the following steps: 1, a base station side receives network access requests of all users to access the network, estimates the current channel quality of each user according to a network access request message, and calculates a signal-to-noise ratio; 2, the base station judges whether the sum of the number of channels required by each user to be accessed is smaller than the number of current available channels or not; if yes, executing the step 3; otherwise, executing the step 4; step 3, allocating channel resources to all users to be accessed according to the number of channels required by the users, and executing step 7; step 4, calculating transmission rates of all users; 5, solving the problem P1 to obtain an optimal solution; step 6, selecting accessible users according to the result in the step 5, and distributing required channel resources for the users; a