5.8 End-device transmission parameters (TxParamSetupReq,

1. TxParamSetupAns)
2. This MAC command only needs to be implemented for compliance in certain regulatory
3. regions. Please refer to the LoRaWAN Regional Parameters [PARAMS] document.

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1. The TxParamSetupReq command can be used to notify the end-device of the maximum
2. allowed dwell time, i.e. the maximum continuous transmission time of a packet over the air,
3. as well as the maximum allowed end-device Effective Isotropic Radiated Power (EIRP).

©2016 LoRa™ Alliance Page 30 of 70

The authors reserve the right to change specifications without notice.

LoRaWAN Specification

1

1. Bits [0…3] of TxParamSetupReq command are used to encode the Max EIRP value, as per
2. the following table. The EIRP values in this table are chosen in a way that covers a wide
3. range of max EIRP limits imposed by the different regional regulations.

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1. The maximum EIRP corresponds to an upper bound on the device‘s radio transmit power.
2. The device is not required to transmit at that power , but shall never radiate more that this
3. specified EIRP.
4. Bits 4 and 5 define the maximum Uplink and downlink dwell time respectively, which is
5. encoded as per the following table:

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12 When this MAC command is implemented (region specific), the end-device acknowledges 13 the TxParamSetupReq command by sending a TxParamSetupAns command. This

1. TxParamSetupAns command doesn‘t contain any payload.
2. When this MAC command is used in a region where it is not required, the device does not
3. process it and shall not transmit an acknowledgement.

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©2016 LoRa™ Alliance Page 31 of 70

The authors reserve the right to change specifications without notice.