Issue link: https://read.uberflip.com/i/1428395
LoRaWAN ® L2 1.0.4 Specification © 2020 LoRa Alliance ® Page 65 of 90 The authors reserve the right to change specifications without notice. 1989 1990 The Frequency coding is identical to the NewChannelReq MAC command defined for 1991 Class A. A value of 0 instructs the end-device that it SHALL use the default frequency plan. 1992 The DR octet contains the following fields: 1993 1994 Bits 7:4 3:0 DR RFU DataRate Table 69: DR field format 1995 1996 The DataRate subfield is the index of the data rate used for the ping-slot downlinks. The 1997 relationship between the index and the physical data rate is defined in [RP002] for each region. 1998 Upon receiving this command, the end-device SHALL answer with a frame containing the 1999 PingSlotChannelAns command. The PingSlotChannelAns command SHALL be added in 2000 the FOpts field (if FPort is either missing or >0) or in the FRMPayload field (if FPort=0) 2001 of all uplinks until a Class A downlink is received by the end-device. 2002 2003 Note: To limit the unavailability of ping slots, the end-device will answer 2004 as soon as possible to this MAC command. 2005 2006 2007 Size (octets) 1 PingSlotChannelAns payload Status Table 70: PingSlotChannelAns payload format 2008 2009 2010 The Status bits have the following meaning: 2011 2012 Bits 7:2 1 0 Status RFU Data rate ok Channel frequency ok Table 71: Status field format 2013 2014 2015 Bit=0 Bit=1 Data rate ok The designated data rate is not defined for this end- device, the previous data rate is kept The data rate is compatible with the possibilities of the end-device Channel frequency ok The end-device cannot receive on this frequency This frequency can be used by the end-device Table 72: Status field bits signification 2016 2017 2018