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8960 1xEV-DO Online User's Guide
E1966A, E1976A, E6706B
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4.3.8 Code Domain Power

Last updated: May 24, 2006

The code domain power is a measure of the power in each code channel of a CDMA Channel. The time reference used in the code domain power test is derived from the Reverse Channel overall waveform and is used as the reference for demodulation of all the code channels. For details on the reverse code channels, see Reverse Channel Overview .

4.3.8.1 DRC Channel Output Power

Definition

The DRC Channel is transmitted at a power level DRCChannelGain relative to the Pilot/RRI Channel power level. This test verifies the output power of the DRC Channel relative to that of the Pilot Channel.

Method of Measurement

  1. Connect the access network emulator to the AT.
  2. Set DRCChannelGain to 0 dB.
  3. Set up a Test Application session and open an RTAP (for Subtype 0 or 1 Physical Layer) or an RETAP (for Subtype 2 Physical Layer) connection.
  4. Configure the Test Application FTAP (for Subtype 0 or 1 Physical Layer) or FETAP (for Subtype 2 Physical Layer) so that the ACK Channel is transmitted at all the slots. (In order for the R-ACK Channel to be active in all slots, you must set ACK Channel Bit Fixed Mode Attribute to on.)
  5. Set Î or to -75 dBm/1.23 MHz.
  6. Measure the power of the Pilot and DRC Channels.
  7. Repeat for DRCChannelGain set to 3 dB.

Minimum Standard

10 log 10 (Power DRC /Power Pilot ) shall be within DRCChannelGain (dB) +/- 0.25 dB.

4.3.8.2 ACK Channel Output Power

Definition

When transmitted, the ACK Channel is transmitted at a power level ACKChannelGain relative to the Pilot/RRI Channel power level. This test verifies the output power of the ACK Channel relative to that of the Pilot Channel.

Method of Measurement

  1. Connect the access network emulator to the AT.
  2. Set ACKChannelGain to 0 dB.
  3. Set up a Test Application session and open an RTAP (for Subtype 0 or 1 Physical Layer) or an RETAP (for Subtype 2 Physical Layer) connection.
  4. Configure the Test Application FTAP (for Subtype 0 or 1 Physical Layer) or FETAP (for Subtype 2 Physical Layer) so that the ACK Channel is transmitted at all the slots. (In order for the R-ACK Channel to be active in all slots, you must set ACK Channel Bit Fixed Mode Attribute to on.)
  5. Set Î or to -75 dBm/1.23 MHz.
  6. Measure the power of the Pilot and ACK Channels.
  7. Repeat for ACKChannelGain set to 3 dB.

Minimum Standard

10 log 10 (Power ACK /Power Pilot ) shall be within ACKChannelGain (dB) +/- 0.25 dB.

4.3.8.3 Data Channel Output Power

Definition

For Subtypes 0 and 1 Physical Layer, the Data Channel, when transmitted, is transmitted on the Q-phase at a power level DataChannelGain relative to the Pilot/RRI Channel power level. For Subtype 2 Physical Layer, the Data Channel, when transmitted, is transmitted on the Q-phase (and also I-phase for the higher payloads) at a power level Traffic-to-Pilot power ratio (T2P) relative to the Pilot Channel power level. The value of DataChannelGain or T2P varies with Reverse Data Channel rate (and TerminationTarget for Subtype 2 Physical Layer) and is set as part of the configuration of the Reverse Traffic Channel MAC Protocol.

This test verifies the output power of the Data Channel (and Auxiliary Pilot Channel where applicable) relative to that of the Pilot Channel.

Method of Measurement

  1. Connect the access network emulator to the AT.
  2. Set up the Test Application and open an RTAP session (for Subtype 0 or 1 Physical Layer) or an RETAP session (for Subtype 2 Physical Layer).
  3. Configure the Test Application FTAP (for Subtype 0 or 1 Physical Layer) or FETAP (for Subtype 2 Physical Layer) so that the ACK Channel is transmitted at all the slots. (In order for the R-ACK Channel to be active in all slots, you must set ACK Channel Bit Fixed Mode Attribute to on.)
  4. Set Î or to -75 dBm/1.23 MHz.
  5. If the access terminal supports Subtype 0 or 1 Physical Layer, perform tests 1-5. If the access terminal supports Subtype 2 Physical Layer, perform tests 1-10.
  6. Tests 1-4: Open an RTAP (for Subtype 0 or 1 Physical Layer) or an RETAP (for Subtype 2 Physical Layer) connection. For Subtype 0 or 1 Physical Layer, configure the Test Application RTAP with a Reverse Data Channel rates of 9.6, 19.2, 38.4, 76.8 kbps. For Subtype 2 Physical Layer, configure the Test Application RETAP with the Reverse Data Channel payload size of 256, 512, 1024, 2048 bits with Termination Target of 16 slots. Measure the power of the R-Pilot and R-Data Channels.
  7. Test 5: Open an RTAP (for Subtype 0 or 1 Physical Layer) or an RETAP (for Subtype 2 Physical Layer) connection. For Subtype 0 or 1 Physical Layer, configure the Test Application RTAP with a Reverse Data Channel rates of 153.6 kbps. For Subtype 2 Physical Layer, configure the Test Application RETAP with the Reverse Data Channel payload size of 4096 bits with Termination Target of 16 slots. Measure the power of the R-Pilot and R-Data Channels. Also measure the power of individual walsh channels (Q2 SF=4 and I2 SF=4 ) constituting the R-Data, as well as all of I channel Walsh codes and all of Q channel Walsh codes.
  8. Tests 6 -7: For Subtype 1 or 2 Physical Layer, configure the Test Application RETAP with a Access Channel Data Channel rate of 9.6, 38.4 kbps. Page the access terminal and measure the power of the R-Pilot and R-Data over the capsule portion of each Access Channel probe.
  9. Tests 8-10: Open an RETAP (for Subtype 2 Physical Layer) connection. Configure the Test Application RETAP with the Reverse Data Channel payload size of 3072 bits, 6144 bits, 12288 bits, with Termination Target of 16 slots for each test. Measure the power of the R-Pilot, R-Aux Pilot and R-Data Channels, as well as the power of individual walsh channels constituting the R-Data. (In order for the R-Aux Pilot Channel to be active for the test, you must set Auxiliary Pilot Channel Min Payload no greater than the Reverse Data Channel payload size.)

Minimum Standard

Tests 1-5:

  • For Subtypes 0 and 1 Physical Layer, 10 log 10 (power Data /power Pilot ) shall be within DataChannelGain (dB) +/- 0.25 dB. The default DataChannelGain values are as follows:
    DataChannelGain (Default Values) vs. Rate (Subtype 0 and 1 Physical Layer)

    Rate (kbps)

    DataChannelGain (dB)

    9.6

    3.75

    19.2

    6.75

    38.4

    9.75

    76.8

    13.25

    153.6

    18.5
  • For Subtypes 2 Physical Layer, 10 log 10 (Power Data /Power Pilot ) shall be within T2P gain (dB) +/- 0.25 dB. For Test 5, the power of individual walsh channels constituting the R-Data, 10 log 10 (Power of Data[I:2 SF4 ]/Power of Pilot) and 10 log 10 (Power of Data[Q:2 SF4 ]/Power of Pilot) shall be within T2P gain (dB) +/- 0.25 dB. (R-Data occupies two walsh channels [I:2 SF4 ] and [Q:2 SF4 ]) The default T2P gain values are as follows:
    T2P and AuxiliaryPilotGain vs. Payload size (Subtype 2 Physical Layer)

    Payload Size
    (bits)

    T2P (dB) (on Walsh code or total)

    AuxiliaryPilotGain (dB) *
    I:2 SF4

    Q:2 SF4

    		I:1 SF2

    Q:1 SF2

    Total

    256

    		 N/A N/A N/A N/A 3.75 N/A
    512 N/A N/A N/A N/A 7 N/A

    1024

    		 N/A N/A N/A N/A

    10

    		 N/A

    2048

    9.99

    9.99

    		 N/A N/A

    13

    		 N/A

    3072

    		 N/A N/A 11.24

    11.24

    14.25

    2.25

    6144

    9.22

    		 9.22 12.23 12.23

    17

    5

    12288

    		 13.47 13.47

    16.48

    		 16.48

    21.25

    9.25
    * The value of AuxPilotChannelGain in Subtype 3 Reverse Traffic Channel MAC Protocol is defined relative to the T2P in C.S0024-A. The values listed here are relative to the Pilot Channel transmit power level taking into account the T2P in each case.
  • In test 5, the code domain power in each inactive channel shall be 23 dB or more below the total transmit power. When either component of a code channel is active, the whole code channel is considered active, and this requirement shall not apply. That is, the test for inactive code channels will apply only if the channel is inactive on both the I and Q components.

    Note: For Subtype 0 and 1 Physical layer, the code channels R-Pilot (I:0 SF16 ), R-DRC (Q:8 SF16 ), R-ACK (I:4 SF8 ), and R-Data (Q:2 SF4 ) constitute the only measurements with active channels. For Subtype 2 Physical layer, the code channels R-Pilot (I:0 SF16 ), R-DRC (Q:8 SF16 ), R-DSC (I:12 SF32 ), R-RRI (I:4 SF16 ), R-ACK (I:12 SF32 ), R-AuxPilot (I:28 SF32 ) (if transmitted), R-Data (I:1 SF2 ) and R-Data (Q:1 SF2 ) constitute the only measurements with active channels.

Test 6:

  • 10 log 10 (Power Data /Power Pilot ) shall be within DataChannelGain (dB) +/- 0.25 dB (the default DataChannelGain is 3.75 dB because the capsule portion of Access Channel data rate is 9.6 kbps).

Test 7:

  • 10 log 10 (Power Data /Power Pilot ) shall be within DataChannelGain (dB) +/- 0.25 dB (the default DataChannelGain is 9.75 dB because the capsule portion of Access Channel data rate is 38.4 kbps).

Tests 8-10: (Table T2P and AuxiliaryPilotGain vs. Payload size (Subtype 2 Physical Layer) gives the default values of T2P gain and Auxiliary Pilot gain for comparison)

  • 10 log 10 (Power Data /Power Pilot ) shall be within T2P gain (dB) +/- 0.25 dB.
  • The power of each walsh channel constituting the R-Data, such as the 10 log 10 (Power of R-Data[I:2 SF4 ]/Power of Pilot), 10 log 10 (Power of R-Data[Q:2 SF4 ]/Power of Pilot), 10 log 10 (Power of R-Data[I:1 SF2 ]/Power of Pilot), and 10 log 10 (Power of R-Data[Q:1 SF2 ]/Power of Pilot) shall be within +/- 0.25 dB of their corresponding component T2P (as shown in the table T2P and AuxiliaryPilotGain vs. Payload size (Subtype 2 Physical Layer) ).
  • 10 log 10 (Power AuxPilot /Power Pilot ) shall be within AuxiliaryPilotGain (dB) +/- 0.25 dB. (The value of AuxPilotChannelGain as defined in the C.S0024-A Subtype 3 Reverse Traffic Channel MAC Protocol is defined relative to the T2P. The AuxPilotChannelGain in the table T2P and AuxiliaryPilotGain vs. Payload size (Subtype 2 Physical Layer) taking into account the T2P, are relative to the Pilot Channel transmit power level.)

4.3.8.4 DSC Channel Output Power

This test is applicable only to access terminals that support Subtype 2 Physical Layer.

Definition

The DSC Channel is transmitted at a power level of DSCChannelGain relative to the Pilot Channel power level. This test verifies the output power of the DSC Channel relative to that of the Pilot Channel.

Method of Measurement

  1. Connect the access network emulator to the AT.
  2. Set DSCChannelGain to -9 dB.
  3. Set up a Test Application session and open an RETAP connection (for Subtype 2 Physical Layer).
  4. Configure the Test Application FETAP (for Subtype 2 Physical Layer) so that the ACK Channel is transmitted at all the slots. (In order for the R-ACK Channel to be active in all slots, you must set ACK Channel Bit Fixed Mode Attribute to on.)
  5. Configure the Test Application RETAP with Reverse Data Channel rate corresponds to 9.6 kbps (256-bit payload with HighCapacity Transmission Mode and a HiCapTerminationTarget256 of 0x3 (16 slots).
  6. Set Î or to -75 dBm/1.23 MHz.
  7. Measure the power of the Pilot and DSC Channels.
  8. Repeat for DSCChannelGain set to -12 dB.

Minimum Standard

10 log 10 (Power DSC /Power Pilot ) shall be within DSCChannelGain (dB) +/- 0.25 dB.

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