Case Study Fach Ps

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The parameter about FACH Parameter hsDschInactivityTimer = 2 Time after which a connection with low throughput is downswitched from HS-DSCH to CELL_FACH. inactivityTimer = 30 When both the downlink and uplink throughput have been 0 kbps (no data has been transmitted) for this length of time, a downswitch from CELL_FACH to IDLE state is requested.

description

WCDMA Case study for Fach improvement

Transcript of Case Study Fach Ps

Page 1: Case Study Fach Ps

The parameter about FACH

ParameterhsDschInactivityTimer = 2

Time after which a connection with low throughput is downswitched from HS-DSCH to CELL_FACH.

inactivityTimer = 30When both the downlink and uplink throughput have been 0 kbps (no data has been transmitted) for this

length of time, a downswitch from CELL_FACH to IDLE state is requested.

Page 2: Case Study Fach Ps

The Analysis Of Data

• The timer was modified from 30s to 5s.

• The adjustment was done in TM01R on 5th June.

• According to the chart, the PS DCR made improvement obviously, especially Fach DCR.

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The Analysis Of Data• The FACH and PS Drop Rate: