98f5731435
Currently, Driver has below configuration: 1. The default value of Neighbor scan channel max time = 30 msec 2. Probe deferral time = 15 msec and 3. The gap between each Probe Request (Probe repeat time) = 20 msec As per above roam scan params, after 15 msec of deferral time STA sends the first probe irrespective of OCE or non-OCE environment. So after the first probe, STA never sends the second probe because 15 msec + 20 msec = 35 msec which is beyond dwell time( 30 msec). Because of lower dwell time, many a time STA is not getting enough time to send the second probe request during a roam scan on the currently associated channel. In case when STA sends only one probe req, there is a lesser chance to receive Probe Response in a semi congested or congested environment. This results in not finding a candidate during a roaming scan. STA should have enough time to send 2 Probe Requests under any condition ( clean or noisy) irrespective of the OCE/non-OCE environment. Fix is to increase the default value of dwell time "gNeighborScanChannelMaxTime" to 40 msec for STA. Change-Id: I1bd52f5efe448ccb4ed4585e98aaf519379dd661 CRs-Fixed: 2467703