Using the reverse activity bit (RAB) to dynamically configure parameters of the EV-DO data rate control (DRC) channel

摘要

Methods and systems are provided for using the EV-DO Reverse Activity Bit (RAB) to dynamically configure parameters of the EV-DO DRC channel. In an embodiment, an access terminal maintains at least two different DRCLength values in data storage. The access terminal periodically transmits DRC data to an access network on the DRC channel. The DRC data comprises a DRC cover and a DRC value. The access terminal uses the DRC cover to select a serving sector, and the access terminal uses the DRC value to request a forward-link data rate. The access terminal periodically receives from an access node in the access network a RAB having a state that is either set or cleared. The access terminal selects one of the maintained DRCLength values based at least in part on the state of the RAB, and subsequently transmits DRC data according to the selected DRCLength value.