Posts tagged Standard

NFC protocols

3 years ago
by admin in

NFC, or Near Field Communication, is a short-range wireless technology which enables the communication between devices over a short distance. It is also called "contactless" because there need not be a real contact between the communicating devices, though the distance between them should be very short (about 10cm).

The most common contactless protocols are the following:

  • ISO 14443 Type A

  • Mifare – Is based on ISO 14443 Type A but includes NXP proprietary encryption & authentication

  • ISO 14443 Type B – This protocol uses the same Block Transmission Protocol as Type A (ISO 14443-4) but the physical layer and initialization procedure (anticollision and selection) are different from Type A

  • ISO 14443 Type B’ or Innovatron – This protocol use the same physical layer as Type B but the layers above are proprietary

  • Felica from Sony (Proprietary) also called type C   

  • ISO 15693 – This protocol is used for RFID Tags

The above protocols share some common behaviour depending on the device role:

Contactless Reader/validator

  • When switched-on, the contactless reader generates a Radio Frequency (RF) field

  • It starts polling for a contactless device by sending requests (REQA,REQB,…) periodically

  • If a correct answer is received, it executes an anticollision loop in order to detect all devices in the field. Then it selects one of them and starts data communication

Contactless cards

  • The power is provided by the RF field

  • An RF antenna is connected to the card to retrieve this power

Contactless mobile phones

  • Specifications of the NFC Forum to address use cases related to a contactless mobile phone environment

  • Antenna in on the mobile connected to a NFC chip, this NFC chip forwards contactless data to the SIM card

All the standards you need to start …

3 years ago
by admin in

From this site is possible to download the following white papers:

GSM Association Press Releases 2007

4 years ago
by admin in

GSMA Publishes Near Field Communications (NFC) Technical Guidelines White Paper

London, UK: The GSM Association (GSMA) has today published the first in a series of ‘Technical Guidelines’ white papers on mobile NFC (Near Field Communication) services, providing the consolidated views of mobile operators as input to support the standardisation of NFC technology. More than twenty mobile operators, including many of the largest in the world, have been working together in the GSMA’s initiative to develop a common vision for Mobile NFC services. The initiative aims to support the development of a stable and efficient NFC ecosystem and promote interoperability, leading to standardisation on a global scale.

The Mobile Operators involved in the NFC initiative serve more than 800 million mobile users. They are: Bouygues Telecom; China Mobile; AT&T (formerly Cingular Wireless); Elisa; KPN; KTF; Mobilkom Austria; NTT DoCoMo Inc.; Orange; Rogers Wireless; SFR; SKTelecom; Telefónica; Telenor; TeliaSonera; Telecom Italia; TMN; Turkcell; Vodafone and ’3′.

The ‘Technical Guidelines’ white paper follows the publication of the NFC ecosystem and related business requirements paper, published in February 2007. It provides a technical analysis of the UICC (the Universal Integrated Circuit Card which is situated inside the handset containing users’ unique profiles and information) to the NFC Chip interface, the Mobile to reader interface and the multi-application UICC framework. Future versions of the white paper will include technical guidelines covering Host Controller Interface (HCI) to Single Wire Protocol (SWP) interface, the UICC run-time environment and Over-The-Air (OTA) provisioning.

The GSMA aims to communicate the key findings of the white paper to the broader industry to facilitate the development of NFC technology and services with the key standardisation bodies such as ETSI and the NFC Forum to further provide input to the standardisation process.

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