3.1.4.1 Downlink Data Reception Based on Payload and Data Rate

The following figures illustrate the downlink data reception based on the combination of payload size and data rate.

Note: Consider using the unconfirmed packet type as the results are the same for confirmed and unconfirmed packet types.

The following table displays the settings and payload sizes to profile the payload and data rate-based downlink data reception scenarios.

Table 3-23. Downlink Data Reception Scenarios

Attribute

Value

TX power(1)

1 (default)

RX1 receive window data rate

DR0 and DR5

RX2 receive window data rate

DR0

Default payload

11 bytes (temperature sensor data)

Max payload

DR0 = 43 bytes and DR5 = 234 bytes

Note:
  1. The TX power from the preceding table resembles the offset value from the TX power table as per the RP2-1.0.2 LoRaWAN® Regional Parameters. Calculate the actual TX power value at the radio level for the above offset value using the following equation.
    Equation 3-4. Actual TX Power
    Actual TX⁢ Power⁢ = MAX⁢ EIRP⁢−2⁢ dB=16−2=14⁢ dBm
Figure 3-58. Downlink Data (Default Payload Size) Reception in RX1 at DR0 “With Period of Operation” Zoom in Plot
Figure 3-59. Downlink Data (Default Payload Size) Reception in RX1 at DR5 “With Period of Operation” Zoom in Plot
Figure 3-60. Downlink Data (Default Payload Size) Reception in RX2 at DR0 “With Period of Operation” Zoom in Plot
Figure 3-61. Downlink Data (Max Payload Size) Reception in RX1 at DR0 “With Period of Operation” Zoom in Plot
Figure 3-62. Downlink Data (Max Payload Size) Reception in RX1 at DR5 “With Period of Operation” Zoom In Plot
Figure 3-63. Downlink Data (Max Payload Size) Reception in RX2 at DR0 “With Period of Operation” Zoom in Plot
Figure 3-64. Downlink Data (Default Payload Size) Reception in RX1 at DR0 “Without Period of Operation” Zoom in Plot
Figure 3-65. Downlink Data (Default Payload Size) Reception in RX1 At DR5 “Without Period of Operation” Zoom in Plot
Figure 3-66. Downlink Data (Default Payload Size) Reception in RX2 At DR0 “Without Period of Operation” Zoom in Plot
Figure 3-67. Downlink Data (Max Payload Size) Reception in RX1 At DR0 “Without Period of Operation” Zoom in Plot
Figure 3-68. Downlink Data (Max Payload Size) Reception in RX1 At DR5 “Without Period of Operation” Zoom in Plot
Figure 3-69. Downlink Data (Max Payload Size) Reception in RX2 At DR0 “Without Period of Operation” Zoom in Plot

The following table provides the consumption values during the downlink data reception in various scenarios captured in the above plots.

Table 3-24. Downlink Data Reception in Various Scenarios

Attribute

Downlink Data Reception in RX1

Downlink Data Reception in RX2

Units

DR0

DR5

DR0

Default Payload Size

(12 bytes)

Max Payload Size

(43 bytes)

Default Payload Size

(12 bytes)

Max Payload Size

(234 bytes)

Default Payload Size (12 bytes)

Max Payload Size (43 bytes)

Total duration

1545

2537

126.3

457.6

1546

2529

ms

Average current

13.89

13.80

13.5

13.70

13.90

13.80

mA

Peak current

14.35

14.70

14.20

17.80

14.30

15.60

mA

Total charge

21460.05

35010.6

1705.05

6269.12

21489.4

34900.2

mA×ms