T200 SACCH SDCCH(10ms)

Parameter Name

T200 SACCH SDCCH(10ms)

Description

This parameter specifies the expiry value of timer T200 used for the SACCH on the SDCCH.

For the function of timer T200 and the effect of the parameter, see the descriptions of the T200 SDCCH (5 ms) parameter.

GUI Value Range

[1,255]

Default Value

60

Unit

Milliseconds

Step

10 ms

Modification Rules

None

Configuration Policy

If timer T200 is set to a too small value, the transmit end may mistakenly regard that the link is faulty and the data transmission fails before the transmit end receives a response from the peer end. If timer N200 is set to a too small value, the number of data retransmissions is reduced and the success rate of transmission is reduced.If T200 and N200 are set to too great values, the channels are seized all along when the link is faulty. Thus, resources are wasted.

Recommended Value

60

Parameter Relationship

Timer N200:

N200 of establish, N200 of release, N200 of SACCH, N200 of SDCCH, N200 of FACCH/TCHH, and N200 of FACCH/TCHF

BSC Feature

None

Parameter Class

Parameters About Radio Resources

Caution

None


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