a19997104
2012-06-02, 12:30 PM
hello experts, i need help with these parameters:
downswitchTimer: Time after which a connection with low throughput is downswitched from dedicated channel to FACH/RACH.
Once the throughput on both the uplink and downlink has fallen below the value of downswitchThreshold, a downswitch to FACH/RACH is normally requested after this length of time. However, the downswitch is not requested if the throughput has subsequently increased above the value of downswitchTimerThreshold.
If CELL_FACH state is not available, the connection is switched down to IDLE state.
Special values:
0 is used to disable traffic-volume-initiated channel switching from dedicated channel to FACH/RACH.
hsdschInactivityTimer: Time after which a connection with low throughput is downswitched from HS-DSCH to CELL_FACH.
Once the throughput on both the uplink and downlink has fallen below the value of downswitchThreshold, a downswitch to FACH/RACH is normally requested after this length of time. However, the downswitch is not requested if the throughput has subsequently increased above the value of downswitchTimerThreshold. If CELL_FACH state is not available, the connection is switched down to IDLE state. Applicable only for radio connections without CPC.
basically whats the difference? i have found that in my network the PS calls make transition just after the RAB assigment, and the cause is "hs-dsch inactivity timer expire", its set to 2seconds (default E/// value)
downswitchTimer: Time after which a connection with low throughput is downswitched from dedicated channel to FACH/RACH.
Once the throughput on both the uplink and downlink has fallen below the value of downswitchThreshold, a downswitch to FACH/RACH is normally requested after this length of time. However, the downswitch is not requested if the throughput has subsequently increased above the value of downswitchTimerThreshold.
If CELL_FACH state is not available, the connection is switched down to IDLE state.
Special values:
0 is used to disable traffic-volume-initiated channel switching from dedicated channel to FACH/RACH.
hsdschInactivityTimer: Time after which a connection with low throughput is downswitched from HS-DSCH to CELL_FACH.
Once the throughput on both the uplink and downlink has fallen below the value of downswitchThreshold, a downswitch to FACH/RACH is normally requested after this length of time. However, the downswitch is not requested if the throughput has subsequently increased above the value of downswitchTimerThreshold. If CELL_FACH state is not available, the connection is switched down to IDLE state. Applicable only for radio connections without CPC.
basically whats the difference? i have found that in my network the PS calls make transition just after the RAB assigment, and the cause is "hs-dsch inactivity timer expire", its set to 2seconds (default E/// value)