Enabling Class B devices on Kona Gateways
Enabling Class-B Beacon Frames:
- The Mega/Macro/Enterprise gateways
can be configured to transmit class-B beacon frames.
- To do this, modify the
following entries in the gateway_conf object in the
/etc/default/config.json file:
"//beacon": "Below are
beaconing parameters",
"//period": "To enable
beacon, change the beacon_period to 128",
"beacon_period": 128,
"beacon_freq_hz": 923400000,
"beacon_freq_nb": 0,
"beacon_freq_step": 0,
#"datarate": "From
legacy Semtech, this is actually spreading factor",
"beacon_datarate": 9,
"beacon_bw_hz": 125000,
"beacon_power": 16,
"beacon_infodesc": 0,
- In the case of gateways running
older BSP versions, these entries have to be added. Also, check with
region parameters in the LoraWAN specification to use the correct entries.
- For new BSP versions, only the “beacon_period” field is required to be changed to 128.
Note that beacon frames are only sent when GPS is locked. If the GPS lock is lost, no beacon frames are sent even if beacons are enabled.
Enabling UTC Timestamp:
- The UTC timestamp (reported
as “time” in the rxpkt json string), by default, is disabled.
- To enable the UTC timestamp,
add the following into the gateway_conf object in the
/etc/default/config.json file:
1"use_utc_timestamp": 1,
- To disable the UTC
timestamp, simply remove the entry or by changing the value to 0.
Note that the UTC timestamp is only reported when GPS is locked. When GPS is lost, the UTC timestamp won’t be reported even though the timestamp is enabled.
Disabling GPS Timestamp:
- By default, the GPS
timestamp (reported as “tmms” in the rxpk packet in the pkt_fwd.log) is enabled.
- To disable the GPS
timestamp, add the following into the gateway_conf object in the
/etc/default/configj.json file:
"use_gps_timestamp": 0,
- To enable the GPS timestamp,
simply remove the entry or by changing the value to 1.
Note that the GPS timestamp is only reported when GPS is locked. When GPS is lost, the GPS timestamp won’t be reported even though the timestamp is enabled.
Configurations
Specific to Kona Mega Gateway:
Enabling Antenna Scheduling for Multicarrier
Transmission:
- In
general, the gateway assumes that packets are scheduled by the network
server on which the antenna to transmit is enabled. Hence, by default, antenna
scheduling on the gateway is disabled.
- However,
if one wants to enable antenna scheduling on the gateway for multi-carrier
transmission purposes, the following entries need to be added to the gateway_conf object
in the /etc/default/config.json file:
#schedule": "To
allow the gateway to schedule antenna for tx, change the following to 1",
"antenna_sched": 1,
- To disable antenna
scheduling, simply remove the entry or by changing the value to 0.
Note that antenna scheduling
is only supported on Mega North America gateways currently.
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