A forward rescue procedure (FRP) for preventing loss of signal and dropped
connections between a mobile station and the infrastructure in a wireless
telecommunications network is disclosed. The FRP allows wireless systems
to recover from forward link failures at the mobile station that would
otherwise result in dropped connections. Examples of failure scenarios
that can be overcome using the FRP include forward link Layer 2
acknowledgement failures and loss of forward link signal due to a fade
that causes loss of signal for a period of time exceeding a threshold
value. In response to a potential connection drop situation, a mobile
station will autonomously add base station pilot channels to the active
set of its rake receiver in order to rescue the connection in danger of
dropping. Concurrently, the wireless network infrastructure will initiate
transmission on alternative forward link channels that are likely to be
monitored by the mobile station during an FRP. If the same channels are
monitored by the MS and transmitted on by the infrastructure, the
connection in danger of dropping can be rescued.