In a communication system, a subscriber unit includes a storage device storing
an application program to determine for transmission a current reserved bandwidth
and a transmission parameter based on a quality of based on a quality of service
profile, and an adapter to communicate data over a wireless network (e.g., a general
packet radio service network) that supports a service, satisfying a reliability
requirement for the service. The adapter may dynamically adjust the transmission
parameter for the transmission before retransmitting one or more packets of data,
e.g., at a rate and retransmission times commensurate with the current reserved
bandwidth, and the reliability requirement in addition to the a current quality
of service profile, ensuring a service level which otherwise cannot be provided
by an infrastructure negotiated quality of service, especially in relatively shorter
flows of data.
