How to control the congestion / overload of the reverse link in a wireless high-speed data applications

摘要

Equal number of RAB (Reverse Activity Bit) determines the reverse link in a wireless communication system, whether a congestion / overload state because of overload of the reverse link RF of each frame to "1" CO used to be a (Congestion Overload) indicators. CO index value exceeds a first predetermined threshold indicating congestion / overload situation, the system enters the block state, the block state, new connection requests are all blocked. Enters a blocking state once, and continues to increase the value of the CO index is not reduced, and if it exceeds the higher second threshold value, the system enters the mute state. In the mute state, a large percentage of a given active calls that are present are mute. Specifically, a message instructing the particular AT to still maintaining active connections while their zero to lower the transmission rate of own is transmitted in the downlink to a particular AT them.