BS ISO IEC 15963:2009 pdf free download

BS ISO IEC 15963:2009 pdf free download Information technology — Radio frequency identification for item management — Unique identification for RF tags
5 Unique identifiers
There are several types of identifiers associated with an RF tag. The most basic form is a chip ID (CID), which is assigned by the integrated circuit (I.C.) manufacturer to a specific semiconductor device at the time of manufacture in a manner that prevents it from being changed. Multiple semiconductor devices may be associated with a single RF tag, though one I.C. per tag is common. In such a case, the identity of the RF tag (TID) might simply assume the CID as its identity or it may assign an identifier distinct from the I.C. In many cases, and as a recommendation of this standard, the TID is assigned at the time of RF tag manufacture in a manner that prevents the TID from being changed.
The RF tag is then attached to some item. In some implementations the TID might then become the unique item identifier (UII). In others, such as ISO/IEC 1 8000-6, Type C and ISO/IEC 1 8000-3, Mode 3 the UII is held in a separate part of memory and is written subsequent to being attached or associated with a specific item. The UII may either be locked or available for reprogramming.
Global uniqueness requires a central body (registration authority) to either assign manufacturer identities or to assign unique identities to various agencies that in turn assign manufacturer identities. Manufacturers then assign unique identification to the chip, tag, or item. This standard serves as the central body for assignment of unique identifiers to RF tags. This standard assigns various Allocation Classes to various agencies that issue manufacturer codes.
Some tags only have identity down to a specific lot, batch, or mask identifier. Other tags, and as recommended by this standard, are serialized so that all RF tags are globally unique from all other RF tags.
The combination of globally unique serialized tag (TID) programmed and locked at the time of manufacturer, with the unique item identifier (UII) programmed when attached or associated with a specific item and trusted trading partner communications are the cornerstones of several anti-counterfeiting techniques used within the supply chain.
For anti-collision, inventorying, reading from, and writing to an RF tag, techniques exist to utilize the TID, UII, or a randomly generated number. Neither the UII nor the randomly generated number provide life-cycle traceability for the RF tag. A TID does provide for such traceability