A02. PWS Attachment 3 - NGT Numbering System.pdf

NGT Numbering System April 5 2019

Attachment 3

Introduction

A serialized numbering system for Next Generation Transponders (NGTs) is described here.

The NGT is defined as a transponder using cellular, satellite, or hybrid (cellular and satellite) technology to send messages. This numbering system provides a globally unique identifier per transponder and allows identification of the transponder manufacturer and transponder type (NGT versus ISO 18000-7 RFID). The NGT transponder IDs must not collide with current or future ISO 18000-7 compliant active RFID transponders’ ID space for active transponders reporting to the RF ITV server in support of DoD In Transit Visibility. The motivation behind this is to provide a formatted transponder ID similar to what is currently used with ISO 18000-7 compliant active RFID transponders, such that current automated information systems do not need to be modified to associate NGT transponders IDs to shipments.

Background:

ISO/IEC 15963:2009 Second edition, “Information technology – Radio frequency identification for item management – Unique identification for RF tags,” which is the latest published version at this time, defines the recommended numbering system for permanent globally unique identifiers used for RF tags (also known as transponders), including ISO 18000-7 RFID active transponders. Using ISO/IEC 15963 nomenclature, this is described as a TID or Tag Identifier.

For ISO 18000-7 active transponders, the TID includes three fields:

1. Allocation class (assigned by INCITS 256 or its delegated Registration Authority)

2. RF tag issuer registration number (manufacturer’s ID)

3. Serial number (managed by original equipment manufacturer)

The details of the TID three part structure is as shown in Table 1 below:

Table 1, Structure of the permanent unique identifier (TID)

Allocation Class TID Issuer Registration No. Serial Number Size is fixed Size defined by AC value Size defined by AC and TID issuer value

000X XXXX space allocated for INCITS 256 Class 0001 0001 is used for ISO 18000-7 transponders

Per ANS INCITS 256 & 371 (for ISO 18000-7 tags) This is the manufacturer ID

Per ANS INCITS 256 & 371 (for ISO 18000-7 tags)

Always = 8 bits for ISO 18000-7 = 8 bits for ISO 18000-7 = 32 bits

NGT Numbering System to Uniquely Identify Transponders:

AMIS will use the same ISO/IEC 15963 recommended structure for NGTs. The 8-bit Allocation Class code will be assigned by PL AMIS as “0001 0010” to distinguish NGTs from ISO 18000-7 compliant transponders, which have been assigned the Allocation Class of “0001 0001.” As of 12 March 2009, the only other INCITS TID Allocation Class assigned was “0000 0000,” with the rest of the space 000XXXXX unassigned (“00” to “1F” hexadecimal).

Table 3 below shows the fields for the NGT numbering system, using the “0001 0010” Allocation Class. Note: AMIS may wish to formally request “0001 0010” be the assigned Allocation Class code for NGT products; however, the registration authority for INCITS 256, defined in the 15963:2009 published standard as autoid.org, is no longer available online to support this. It is anticipated that a new authority will be identified in an upcoming release of 15963, and registration of a new Allocation Class code may be pursued at that time.

Table 2, NGT Numbering System, Example

8-Bit Allocation Class

(NGT)

8-Bit NGT Manufacturer ID (Assigned)

32-bit OEM Managed Serial No.

Range: 0 to 4,294,967,295

0001 0010 NGT Awardee – 0000 0100 OEM company managed Min value: 120400000000 Hex 19808389169152 Decimal Max value: 1204FFFFFFFF Hex 19812684136447 Decimal

0001 0010 Reserved – 0000 0101 OEM company managed Min value: 120500000000 Hex 19812684136448 Decimal Max value: 1205FFFFFFFF Hex 19816979103743 Decimal

0001 0010 Reserved – 0000 0110 OEM company managed Min value: 120600000000 Hex 19816979103744 Decimal Max value: 1206FFFFFFFF Hex 19821274071039 Decimal

0001 0010 Reserved – 0000 0111 OEM company D managed Min value: 120700000000 Hex 19821274071040 Decimal Max value: 1207FFFFFFFF Hex 19825569038335 Decimal

The 8-bit TID Issuer Registration No. field is the assigned Manufacturer’s ID. AMIS will require NGT original equipment manufacturers to apply for a registered INCITS TID manufacturer code with the INCITS TID registration authority (preferred if available); alternately, AMIS will assign and track these NGT manufacturer codes. This method will be determined at the time of award.

The remaining 32-bit serial number will be left to the NGT OEM to manage. The NGT OEM issues the 32-bit serial number and has the responsibility to ensure its uniqueness within their family of products. It shall be unique in the sense that the issuer does not re-issue a number until a sufficient period of time has passed so that the first number has ceased to be of significance to any user.

NGTs will be required to be labelled with a human readable barcode, using the 14 numeric character decimal interpretation of the complete 48 bit TID, with Allocation Class being the most significant byte, the Manufacturer’s ID being the second most significant byte, and the 32 bit

OEM-managed serial number being the least significant 4 bytes (32 bits). This system will place the 14 numeric character TID value for NGTs in a higher numeric value range than the possible values of any current or future ISO 18000-7 RFID transponders, thus ensuring there are no TID duplications with existing or future active RFID transponders. See Table 4 below for the numeric range of TIDs for transponder type and manufacturer ID space assigned.

Table 3, Numeric Range of TIDs by Transponder Type

Transponder Type Minimum Numeric Value Maximum Numeric Value ISO 18000-7 Active RFID (using all possible Manuf. IDs) 00 Hex to FF Hex

18,691,697,672,192 Dec.

11 00 00000000 Hex

19,791,209,299,967 Dec.

11 FF FFFFFFFF Hex

ISO 18000-7 Active RFID (using assigned Manuf. IDs) 04 Hex to 07 Hex, four OEMs)

18,708,877,541,376 Dec.

11 04 00000000 Hex

18,726,057,410,559 Dec.

11 07 FFFFFFFF Hex

NGT

(using all possible Manuf. IDs) 00 Hex to FF Hex

19,791,209,299,968 Dec.

12 00 00000000 Hex

20,890,720,927,743 Dec.

12 FF FFFFFFFF Hex

NGT

(using range of 04 Hex to 07 Hex Manuf. ID space, one awardee plus three reserved for future OEMs as an example)

19,808,389,169,152 Dec.

12 04 00000000 Hex

19,825,569,038,335 Dec.

12 07 FFFFFFFF Hex