Controlling operating states of a mobile station in a packet radio system
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United States of America Patent
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-
Jun 5, 2001
Grant Date -
N/A
app pub date -
Oct 30, 1998
filing date -
Apr 1, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a packet radio network, a mobile station (MS) has an active state and a standby state. In the active state, the mobile station performs data transmission and updates its location more often than in the standby state. The mobile station changes from the active state to the standby state if there is no data transmission during a predetermined period. The packet radio network (SGSN) may also direct, if required, the mobile station (MS) from the active state to the standby state. The mobile station (MS) transmits to the packet radio network a short pseudo data packet either before the timer expires or in response to a command transmitted by the packet network to change the state (GO STANDBY) when the mobile station wants to stay in the active state.
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