Method Tokens
Geopriv Location Object Registries
2004-11-03
2022-09-15
Method Tokens
First Come First Served
These tokens are associated with the PIDF-LO object.
A-GNSS
Assisted Global Navigation Satellite Systems
A-GPS
GPS with assistance
AOA
Angle of Arrival
best-guess
The LIS cannot provide an accurate location. The value is its best guess, but may be very inaccurate.
Cell
Location of the cellular radio antenna
DBH
Device-Based Hybrid
DBH2
A Device-Based Hybrid system (typically on a
mobile device) produces a compound location that
includes a full or partial Civic Address in addition
to the Geodetic Location normally expected from
a DBH system. Distinct from RevGeo because,
even if the DBH system uses reverse-geocoding to
determine the Civic Location, the DBH system
determines and delivers the Civic Location, not a
downstream entity.
NENA-REQ-003.1-2022
DBH_HELO
Device-Based Hybrid using Apple Hybridized Emergency Location
Derived
This value is intended to represent a location
object determined by geocoding or reverse geocoding
a location determined by some other method.
Derived-RevGeo
A full or partial Civic Location, which is not
validated against an LVF, is derived by reversegeocoding a Geodetic Location. The original
Geodetic Location MUST also be delivered with
the derived Civic Location. Used when a
downstream entity other than the calling device
reverse-geocodes a Geodetic Location it received
from an upstream entity, such as location
services/DBH.
NENA-REQ-003.1-2022
DerivedRevGeo-LVF
A full or partial Civic Location, which is validated
against an LVF, is derived by reverse-geocoding a
Geodetic Location.
NENA-REQ-003.1-2022
Device-Assisted_A-GPS
Device provides psuedo-ranges to a network element
that computes the location
Device-Assisted_EOTD
Enhanced Observed Time Difference, device provides
measurements, network element computes location
Device-Based_A-GPS
Network provides psuedo-ranges to the device and
the device computes its location
Device-Based_EOTD
Enhanced Observed Time Difference, network element
provides measurements and device computes location
DHCP
Provided by DHCP (used for wireline access
networks, see 802.11 below)
E-CID
Enhanced Cell Identifier
ELS-BLE
Civic Address representing the associated location of the
UE based upon the Bluetooth beacon from ELS
ATIS-0700028.v002
ELS-WiFi
Civic Address representing the associated location of the
UE based upon the referenced Wi-Fi Access Point from ELS
ATIS-0700028.v002
GNSS
Global Navigation Satellite Systems
GPS
Global Positioning System
Handset_AFLT
Advanced Forward Link Trilateration
Handset_BLE
Bluetooth based X,Y position, using beacon proximity
with varying power and coverage levels
NENA-STA-010.3-2021
Handset_EFLT
Enhanced Forward Link Trilateration
Handset_WiFi
WLAN based X,Y position, using beacon proximity or
ranging methods
NENA-STA-010.3-2021
Hybrid_A-GPS
Device provides psuedo-rangesto a network element
that computes the location in combination with
network measurements
hybridAGPS_AFLT
Hybrid of Assisted GPS and Advanced Forward Link Trilateration
hybridCellSector_AFLT
Positioning based on combining information from multiple cells or sectors
NENA-STA-010.3-2021
hybridCellSector_AGPS
Hybrid of Cell/Sector based and Assisted GPS
hybridOTDOA_A-GNSS
Positioning based on the combination of OTDOA and multiple constellations (GPS, GLONASS, Galileo, etc.)
NENA-STA-034.1-2021
hybridOTDOA_AGPS
Positioning based on the combination of OTDOA and AGPS measurements
NENA-STA-034.1-2021
hybridRFPatternMatch_AGPS
Network-centric positioning method based on a combination of radio link
measurements collected from the network and/or the device and AGPS
NENA-STA-010.3-2021
hybridTDOA_A-GNSS
Positioning based on the combination of TDOA and multiple constellations
(GPS, GLONASS, Galileo, etc.)
NENA-STA-010.3-2021
hybridTDOA_AOA
Hybrid of Time Difference of Arrival and Angle of Arrival
hybridTDOA_AGPS
Hybrid of Time Difference of Arrival and AGPS
hybridTDOA_AGPS_AOA
Hybrid of Time Difference of Arrival, Assisted GPS and Angle of Arrival
hybridWiFi_AGPS
Positioning in the network based on the combination of Wi-Fi and
AGPS measurements
NENA-STA-010.3-2021
IPDL
Idle Period Down Link
LLDP-MED
Provided by Link Layer Discovery Protocol - Media
Endpoint Discovery (LLDP-MED)
Telecommunications Industry Association, "Link Layer Discovery
Protocol for Media Endpoint Devices", ANSI/TIA-1057, April 2006.
Manual
Entered manually by an operator or user, e.g.,
based on subscriber billing or service location
information
Manual-FIXED
A Civic Location is derived by knowledge that the
calling device is connecting via a semi-static
small-cell device that is at a known, validated,
address, such as a pico/femtocell or that the
calling device is a fixed cellular device.
NENA-REQ-003.1-2022
Manual-RESD
A Civic Location is provided using knowledge that
the calling device is a static device at a known,
validated, residential address.
NENA-REQ-003.1-2022
MBS
Metropolitan Beacon System
MPL
Measured Path Loss
NEAD-BLE
Civic Address representing the provisioned location of a
Bluetooth beacon to support the dispatching of emergency services.
ATIS-0700028
NEAD-WiFi
Civic Address representing the provisioned location of a
Wi-Fi Access Point to support the dispatching of emergency services.
ATIS-0700028
networkRFFingerprinting
Network Based RF Fingerprinting
networkTDOA
Network Based Time Difference of Arrival
networkTOA
Network Based Time of Arrival
NMR
Network Measurement Reports
OTDOA
Observed Time Difference of Arrival
Proximity
A Civic Location is provided using knowledge that
the caller is at or near a specific registered
address for that person’s identity and/or their
device, such as determining by analyzing the
caller’s Geodetic Location that they are at their
registered home address or that they are placing
a call from their home Wi-Fi.
NENA-REQ-003.1-2022
RFID
Proximity to a Radio Frequency Identification
beacon
RSSI
Received Signal Strength Indicator
RSSI-RTT
Combination of Received Signal Strength Indicator
and Round Trip Time used to determine the location
of the Target
RTT
Round Trip Time
TA
Timing Advance
TA-NMR
Timing Advance and Network Measurement Reports
Triangulation
Triangulated from time-of-arrival, signal strength
or similar measurements
UTDOA
Uplink Time Difference of Arrival
Wiremap
Location determined using wiremap correlations to
ciruit identifiers
802.11
802.11 access point (used for DHCP-based
provisioning over wireless access networks)
Apple, Inc.
mailto:helo&group.apple.com
2019-03-21
Brian Rosen
mailto:br&brianrosen.net
2022-05-12
James Winterbottom
mailto:james.winterbottom&andrew.com
2007-10-18
NextNav
mailto:info&NextNav.com
2017-05-25
Peter Blatherwick
mailto:peter_blatherwick&mitel.com
2006-07-19
Roger Marshall
mailto:roger.marshall&comtechtel.com
2019-04-22
Tom Hsu
mailto:tom.hsu&nokia.com
2022-09-15