AMR ACS(F)(Kbit/s)

AMR ACS(F)(Kbit/s)

This parameter specifies the set of active coding rates. The active coding set (ACS) is a set of coding rates currently available for calls. Use a BIT map to present the speech coding rates contained in the ACS, wherein a BIT corresponds to a coding rate. If a bit is 1, the coding rate is included in the ACS. Otherwise, the ACS does not include the coding rate. The value of this parameter has eight bits.

[12.2,10.2,7.95,7.40,6.70,5.90,5.15,4.75]

10100101

Kbit/s

-

None

Each bit indicates whether a coding rate is contained in the ACS. The eight bits represent the coding rates from 12.2 kbit/s to 4.75 kbit/s (from left to right). Bit 1 means that the coding rate is contained in the ACS and bit 0 means that the coding rate is not contained in the ACS. One to four coding rates can be selected simultaneously.

If only one coding full rate is specified by this parameter, then AMR Starting Mode (F) must be set to 0. All the AMR coding rate adjustment thresholds and hysteresis are meaningless.

If two coding rates are specified by this parameter, then AMR Starting Mode (F) can be set to 0 or 1. The parameters AMR UL Coding Rate adj.th1 (F), AMR UL Coding Rate adj.hyst1 (F), AMR DL Coding Rate adj.th1(F), and AMR DL Coding Rate adj.hyst1 (F) are meaningful. Other AMR coding rate adjustment thresholds and hysteresis are meaningless.

If three coding rates are specified by this parameter, then AMR Starting Mode (F) can be set to 0, 1, or 2. The parameters AMR UL Coding Rate adj.th1 (F), AMR UL Coding Rate adj.hyst1 (F), AMR DL Coding Rate adj.th1(F), and AMR DL Coding Rate adj.hyst1 (F) are meaningful. Other AMR coding rate adjustment thresholds and hysteresis are meaningless.

If four coding rates are specified by this parameter, then AMR Starting Mode (F) can be set to 0, 1, 2, or 3. All the AMR coding rate adjustment thresholds and hysteresis are meaningful.

10100101

None

AMR

Parameters About Radio Resources

None