MOBILE RFID DEVICE AND DATA COMMUNICATION METHOD THEREOF

• US 20110074555A1
• Filed: 08/20/2010
• Published: 03/31/2011
• Est. Priority Date: 09/29/2009
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Park, Chan-Won, Lee, Donghan, Kim, Jeong seok, Bae, Ji-Hoon, Choi, Won Kyu, Quan, Cheng-Hao, Park, Man Sik, Cho, Kwang-Soo, Chae, Jong-Suk, Choi, Gil Young
• Application Number:
  US12/859,799
• Publication Number:
  US 20110074555A1
• Time in Patent Office: Days
• US Class Current: 340/10.4
• CPC Class Codes: G06K 7/0008 General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
• CPC Class Codes: G06K 7/10297 arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092 cryptographic protocols H04L9/00; network security protocols H04L63/00; real-time communication protocols in data switching networks H04L65/00; network protocols for data switching network services H04L67/00

Abstract

Provided are a mobile Radio Frequency Identification (RFID) device and a data communication method thereof. In the method, a mobile communication terminal unit provides a command to an mRFID reader unit and receives a response to the command from the mRFID reader unit. It is checked whether there is an error in a protocol message of the command or the response, and the command to the mRFID reader unit according to a check result is re-transmitted.

Claims

1. A data communication method of a mobile Radio Frequency Identification (RFID) device, comprising:

providing, by a mobile communication terminal unit, a command to an mRFID reader unit and receiving a response to the command from the mRFID reader unit; and

checking whether there is an error in a protocol message of the command or the response, and re-transmitting the command to the mRFID reader unit according to a check result.

2. The method of claim 1, wherein the command and the response comprise a Cyclic Redundancy Check (CRC) field to check the error of the protocol message, respectively.

3. The method of claim 2, wherein the CRC field follows an end mark field of the protocol message.

4. The method of claim 1, wherein the re-transmission number of the command is limited to K (K is a natural number).

5. A mobile Radio Frequency Identification (RFID) device comprising:

a mobile communication terminal unit providing a command; and

an mRFID reader unit providing a response to the command to the mobile communication terminal unit,

wherein the communication terminal unit and the mRFID reader unit comprise a Cyclic Redundancy Check (CRC) circuit to check whether there is an error in a protocol message of the command or the response, respectively, and

the communication terminal unit re-transmits the command to the mRFID reader unit according to a result of the error check.

6. The mobile RFID device of claim 5, wherein the command and the response comprise a CRC field to check the error of the protocol message, respectively.

7. The mobile RFID device of claim 6, wherein the command is a set security key command, and the set security key command comprises information on an Electronic Serial Number (ESN), a phone number, and a user assignment key.

8. The mobile RFID device of claim 6, wherein the command is a set frequency mode command, and the set frequency mode command comprises information on a frequency hopping mode, a Listen before Talk (LbT) mode, or a specific frequency use.

9. The mobile RFID device of claim 6, wherein the command is a set Medium Access Control (MAC) control command, and the set MAC control command comprises information on whether a MAC is used.

10. The mobile RFID device of claim 6, wherein the command is a start automatic read command, and the start automatic read command comprises information on a maximum number of tags, a tagging maximum duration, and a repeat cycle.