I’m suggesting that passive rfid is possible with transmitters, and there are 5g towers in lots of places, enough to track a person if a government was inclined. I see them every block in many city business centers.
Aa key trait of RFID is that it’s passive and only has a range of inches to maybe 5 feet. Even mmWave towers are typically out of that range, plus it needs active power. Tracking someone using their (actively powered) phones cell signal is incredibly easy, even with 4g. It’s shifting through all the data that’s hard and time consuming.
Identifying someone using 5g’s radio frequencies would technically quality as Radio Frequency IDentification. When people talk about RFID they’re typically referring to those passively powered key cards. Those key cards barely work when they’re an inch away from the object, let alone 5 feet away plus 0.5 cm of RF absorbing skin.
UHF RFID and the passive RFID injected into people’s skin are quite different technology. The credit card sized antenna combined with a directed radio signal (and a license plate scanner for backup) can do several meters, but a tag in your body won’t be readable beyond a few centimeters. Unless you use an active radio, of course, but then you need to power that radio somehow.
OP is asking if it’s possible to track someone.
I’m suggesting that passive rfid is possible with transmitters, and there are 5g towers in lots of places, enough to track a person if a government was inclined. I see them every block in many city business centers.
Aa key trait of RFID is that it’s passive and only has a range of inches to maybe 5 feet. Even mmWave towers are typically out of that range, plus it needs active power. Tracking someone using their (actively powered) phones cell signal is incredibly easy, even with 4g. It’s shifting through all the data that’s hard and time consuming.
Identifying someone using 5g’s radio frequencies would technically quality as Radio Frequency IDentification. When people talk about RFID they’re typically referring to those passively powered key cards. Those key cards barely work when they’re an inch away from the object, let alone 5 feet away plus 0.5 cm of RF absorbing skin.
As I stated previously, toll booth rfid work at 20+feet and 80+.
UHF RFID and the passive RFID injected into people’s skin are quite different technology. The credit card sized antenna combined with a directed radio signal (and a license plate scanner for backup) can do several meters, but a tag in your body won’t be readable beyond a few centimeters. Unless you use an active radio, of course, but then you need to power that radio somehow.