Standards Implications
RFID standardization can be divided into three sections: air interface protocol, tag encoding format, and the information services infrastructure. The air interface and tag encoding formats are the main focus of SAC. The information services infrastructure is still evolving with limited deployment. Air interface specification is around the permissible frequency and communication protocol between RFID tags and readers. Additional features including writing and locking tag data, encryption, and interference resolution fall under this category. Similar to Europe, the operating frequency of long range passive UHF tags are in conflict with the GSM mobile networks in China.
Competing international standards between the ISO and EPCGlobal are also a cause for concern. Contrary to common belief, whether China follows an existing standards specification or develops its own air interface, the decision itself is not a barrier for global adoption. The intricacies of the air interface protocol can be hidden from the application by using multi-protocol readers. Reader manufacturers including AWID, Matrics, Samsys, and Tyco have all developed readers that are capable of reading different tags.
It is imperative that standards have a common tag encoding format as it determines what bytes can be encoded on the tag and thus recognized across the supply chain. If a box of tissue paper is coded using the suppliers own Stock Keeping Unit (SKU) numbers it can not be recognized by the retailer who is using Global Trade Identifiers (GTIN) to receive products. In fact, the case of tissue paper may be mistaken for a bottle of shampoo.
Current Progress
RFID adoption in China by both commercial and academic institutions is already underway. Top Wal-Mart suppliers Hewlett Packard and Hasboro have operations in China and are investigating source tagging. Hewlett Packard has licensed a temporary frequency band for RFID implementation from the Chinese government. Multinational companies including Sun Microsystems, Phillips, Texas Instruments, SAP, and Oracle have all announced their RFID
Initiatives in China.
Several institutions within China are also leading the way in the development of RFID technology. Fudan University in Shanghai hosts the Auto-ID Lab in China, one of six universities around the world responsible for fundamental RFID research. The China EPC Working Group in Beijing was formed in March to investigate the industrialization and commercialization of RFID/EPC technology. The group was formed under the request of China Association of Standardization, an advisory committee of the SAC.
Summary
Recently, the China’s RFID standards group announced that it is in the process of developing its own air interface specification but at the same time they emphasized that the specifications will be interoperable with international standards. One unnamed official noted that the purpose of the standardization is not to setup a competitive barrier against global efforts but rather for ensuring that quality requirements and performance benchmarks are met by the growing market. As with any standardization process, the specifications will evolve as the technology becomes more mature. Regardless of the intent, it is clear however that to maintain its manufacturing leadership, China must make sure that its standards are interoperable beyond its national borders and across the global supply chain.