present invention is directed to a method for opportunistically aligning advertisement delivery with base station overloads such alignment improves the overall perception of network availability for users since users do not perceive complete network unavailability at all u2014 whenever network u201c needs to be unavailable u201d to a user an advertisement is served the inventive technique considers two groups of users regular users that receive their reserved traffic share and targeted users that receive advertisements during basestation 109 overloads the invention initially maps all users to the regular group and employs proportional fair resource allocation using the modulation and coding scheme i e mcs feedback periodically from the base station across the users the invention employs per user queues and monitors the service rate and the queue length for each user if a user 39 s queue builds up beyond a threshold and the service rate for the user is below a threshold some active users with minimum value of dissatisfaction are migrated to the targeted group such that the remaining flows receive adequate service rate see algorithm 1 in fig5 dissatisfaction is maintained as the number of times a user is moved into the target group in a given time period more specifically now referring to fig1 5 the inventive opportunistic alignment of advertising delivery with cellular basestation overloads is instantiated as a gateway level solution in the cellular operator 39 s access network external to.