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Sounding Reference (Advanced LTE FDD Uplink)

Additional Uplink parameters are described in Cell Parameters (Advanced LTE FDD Uplink), PUSCH Common (Advanced LTE FDD Uplink), and PUCCH Common (Advanced LTE FDD Uplink).

4. Sounding Reference

State

Power

Auto-Subframe Configuration

Subframe Configuration

Cell specific SRS Subframes

Cyclic Shift (nSRS_CS)

SRS Bandwidth Configuration (C_SRS)

SRS Bandwidth (B_SRS)

Transmission Comb (kTC)

SRS Hopping Bandwidth (b_hop)

Frequency Domain Position (nRRC)

Configuration Index (I_SRS)

UE specific SRS Periodicity and Subframe Offset

Frequency Hopping

State

Choice: Off | On

Default: Off

Double-click or use the drop-down menu to turn the sounding reference signal on or off.

Power

Range: -60 to 20 dB

Default: 0.000 dB

Set the power of the sounding reference signal in dB.

Auto-Subframe Configuration

Choice: Off | On

Default: On

Double-click or use the drop-down menu to turn the auto-subframe configuration on or off.

Subframe Configuration

Range: 0 to 14

Default: 0

Enter a value for the sounding reference signal subframe configuration (see 3GPP TS 36.211). Auto-Subframe Configuration must be set to on for this parameter to be active.

Cell specific SRS Subframes

Enter the number of individual subframes separated by commas (example: 0,1,2,3) or a range of subframes (example: 0-3) to assign the sounding reference signal to specific subframes. Auto-Subframe Configuration must be set to off for this parameter to be active.

Cyclic Shift (nSRS_CS)

Range: 0 to 7

Default: 0

Enter a real number value for the sounding reference signal cyclic shift (nSRS_CS). See 3GPP TS 36.211.

SRS Bandwidth Configuration (C_SRS)

Range: 0 to 7

Default: 7

Enter a value for the sounding reference signal bandwidth configuration (C_SRS). See 3GPP TS 36.211.

SRS Bandwidth (B_SRS)

Range: 0 to 3

Default: 0

Enter a value for the sounding reference signal bandwidth (B_SRS). See 3GPP TS 36.211.

SRS Bandwidth (B_SRS), SRS Hopping Bandwidth (b_hop), and Frequency Hopping are related as follows:

Frequency Hopping On: SRS Hopping Bandwidth (b_hop) < SRS Bandwidth (B_SRS)

Frequency Hopping Off: SRS Hopping Bandwidth (b_hop) >= SRS Bandwidth (B_SRS)

Transmission Comb (kTC)

Range: 0 to 1

Default: 0

Enter a value for the sounding reference signal transmission comb (kTC). See 3GPP TS 36.211.

SRS Hopping Bandwidth (b_hop)

Range: 0 to 3

Default: 0

Enter a value for the sounding reference signal hopping bandwidth (b_hop). See 3GPP TS 36.211.

SRS Bandwidth (B_SRS), SRS Hopping Bandwidth (b_hop), and Frequency Hopping are related as follows:

Frequency Hopping On: SRS Hopping Bandwidth (b_hop) < SRS Bandwidth (B_SRS)

Frequency Hopping Off: SRS Hopping Bandwidth (b_hop) >= SRS Bandwidth (B_SRS)

Frequency Domain Position (nRRC)

Range: 0 to 23

Default: 0

Enter a value for the sounding reference signal frequency domain position (nRRC). See 3GPP TS 36.211.

Configuration Index (I_SRS)

Range: 0 to 636

Default: 0

Enter a value for the sounding reference signal configuration index (I_SRS). See 3GPP TS 36.211.

UE specific SRS Periodicity and Subframe Offset

Displays the SRS periodicity and subframe offset. These values are set by the software and are in accordance with 3GPP TS 36.213 V8.5.0 Table 8.2-1.

Frequency Hopping

Displays the frequency hopping state (read only), which is automatically set by below rule. See 3GPP TS 36.211.

SRS Bandwidth (B_SRS), SRS Hopping Bandwidth (b_hop), and Frequency Hopping are related as follows:

Frequency Hopping On: SRS Hopping Bandwidth (b_hop) < SRS Bandwidth (B_SRS)

Frequency Hopping Off: SRS Hopping Bandwidth (b_hop) >= SRS Bandwidth (B_SRS)