Parameter Name |
Max. Duration of DRX(s) |
|---|---|
Description |
This parameter specifies the maximum duration of the non-DRX mode. DRX (discontinuous reception) is a parameter carried by the cell broadcast message. The MS stays in the DRX mode for a certain period when changing from the packet transfer mode to the packet idle mode. After the TBF is released, the MS monitors all the CCCH blocks during the non-DRX mode period and the BSC6000 reserves the MS context. The reservation time depends on the smaller value between DRX_Timer_Max and NON_DRX_TIMER. NON_DRX_TIMER is negotiated with the SGSN during the GPRS attachment of the MS and its value is usually high. Therefore, the reservation time actually depends on DRX_TIMER_MAX. Value 0 indicates that the MS enters the DRX mode immediately. Value 1 indicates that the MS enters the DRX mode one second later. Value n indicates that the MS enters the DRX mode n seconds later. |
GUI Value Range |
[0,1,2,4,8,16,32,64] |
Default Value |
4 |
Unit |
Seconds |
Step |
- |
Modification Rules |
None |
Configuration Policy |
It takes a shorter time to send the Immediate Assignment message on all PCHs and AGCHs in non-DRX mode than in DRX mode. During the period of non-DRX mode, the TBF establishment time decreases, but the power consumption of the MS increases. In DRX mode, the MS monitors paging messages only on the home paging group, and then receives the Immediate Assignment message on all the paging blocks and AGCH reservation blocks. The TBF establishment time increases, but the power consumption of the MS decreases. If this parameter is set to a modest value, the TBF establishment time increases but the power consumption of the MS decreases. If this parameter is set to an excessive value, the TBF establishment time decreases but the power consumption of the MS increases. |
Recommended Value |
4 |
Parameter Relationship |
None |
BSC Feature |
GPRS&EGPRS |
Parameter Class |
Parameters About Radio Resources |
Caution |
None |