used to denote fast active scanning the depicted use of b 8 in fig1 is purely an example furthermore more than one reserved bit could be used to indicate the specific scanning capability information on caps can be collected and delivered to the mobile station s in any of various fashions one such method is offline collection by an operator in which network providers or operators can collect information by examining coverage of each ap offline this method of collection of information may be extracted implemented during the original planning for all aps another method is real time collection by all aps using reassociation messaging in which mobile stations that make a handshake between two aps are recommended to send a reassociation frame containing information of prior aps to subsequent aps subsequent aps are then required to send a move notify message containing information about themselves to prior aps through such message exchanges aps can themselves collect information on caps another real time collection method for information on caps would be scan reporting in which mobile stations that have finished scanning can be requested by the current ap to send a scanning results report of the previous scan to the current ap because information collected by the two above noted methods reassociation messaging and scan reporting may be constrained within the boundaries of direct neighbor aps a corresponding real time method for collecting cap information is information exchange among existing aps this method could be incorporated with either or both of reassociation messaging and scan reporting to exchange information among all aps in a network fig1 depicts how exchanging information among all aps results in a neighborhood graph of the.