Carrier segment feature class (Carrier_Segment)

The Carrier_Segments feature class indicates the general cellular signal information of the road. The feature class includes a high, median, and low strength value of availability, as well as optimal signal strength values without defining the carrier of the relevant signal measurement.

For a description of the attributes OBJECTID, Shape, GlobalID, and Shape_Length, see .

Field name Data type Description
LINK_ID Integer (4) The unique identifier for a topology segment associated with a CORE MAP link
PERCENT_TOPOLOGY_SEGMENT_START Double (8) The percent of the segment where the attribute starts, from the reference node. For example, 1
PERCENT_TOPOLOGY_SEGMENT_END Double (8) The percent of the segment where the attribute ends, from the reference node. For example, -61
ISO_COUNTRY_CODE Char(3) Three letter ISO code indicating the country containing the segment. For example, FRA for France
TIMESTAMP Date (8) Date of source file creation, formatted as (dd/mm/yyyy)
CARRIER Char (10) A unique identifier for the network carrier, as indicated by the MCC and MNC values. For example, 505002
MCC Char(3) The Mobile Country Code, which indicates the country associated with the Mobile Network Code that uniquely identifies a cellular carrier
MNC Char (3) The Mobile Network Code, which indicates the network associated with the Mobile Country Code that uniquely identifies a cellular carrier
LACTAC Integer (4) A geographic division indicator of the mobile network. For example, 215524420
OPTIMAL_STRENGTH Char(15) The signal strength as indicated by the highest quality RSSI value available per segment.
  • Excellent
  • Good
  • Fair
  • Poor
  • No observation
  • No coverage
  • Observed (which is only valid if the interface is CDMA)
STRENGTH_HIGH Integer (4) The highest of the observed RSSI values on the segment. For example, -68
STRENGTH_LOW Integer (4) The lowest of the observed RSSI values on the segment. For example, 103
STRENGTH_MEDIAN Integer (4) The median of the observed RSSI values on the segment. For example, -98.5
INTERFACE Text(15) This identifies which access modes are available.
  • GERAN: 2G
  • UTRAFDD: 3G
  • UTRATDD: 3G
  • EUTRA: 4G
  • Uu: 5G
  • NG-C: 5G
  • NG-U: 5G
  • CDMA: 2G/3G
SID Char(5) The System ID, which indicates a cellular carrier using a CDMA interface
NID Char (5) A Network Identity number, which indicates that a cellular carrier is using a CDMA interface and SID numbering
CONFIDENCE Char (10) This indicates confidence, based on a HERE proprietary algorithm. Available values are:
  • Excellent
  • Good
  • Fair
  • Low
  • Very low
  • Unknown
BRAND Char (50) The brand name corresponding to the CARRIER value
COUNTRY Char (45) Name of the country containing the area under examination
OPERATOR Char (80) The full name of the operating business