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Near field communication host controller interface

A technology of short-range communication and communication interface, which is applied in various digital computer combinations, transmission systems, electrical components, etc., and can solve problems such as inability to guarantee compatibility or versatility, and inability to guarantee compatibility or versatility.

Inactive Publication Date: 2008-11-12
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the interfaces between the host and chipsets or devices are different from each other, and mutual compatibility or commonality cannot be guaranteed
[0005] figure 2 Illustrates disadvantages that may arise where mutual compatibility or commonality cannot be guaranteed in the interface between the host and the chipset or device
When an interface suitable for NFCC 210 is established for a predetermined NFCH 100, other NFCCs 220 and 230 cannot connect to the host 100 on the basis of different drivers 123 and 133

Method used

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Embodiment Construction

[0043] image 3 The Host Controller Interface (HCI) concept according to the present invention is explained. NFCH and NFC chipsets or NFC devices conform to the format and processing according to the invention. According to the present invention, any NFCH 100 has a common interface driver 120 with respect to the interfaces 112, 122, and 132 corresponding to various drivers, and any NFC chipset (hereinafter including NFC devices) communicates via a communication line (such as the serial bus) to a common device driver that includes HCI. And, an extension interface 125 for public device drivers is further provided to provide scalability. Therefore, a driver area 135 that can be freely defined and used by manufacturers is further provided.

[0044] refer to image 3, by making the device conform to the format and processing determined in association with the interface between the NFCH and the NFC chipset, the mutual compatibility and commonality of a series of control operatio...

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Abstract

Provided is a communication interface between an NFCH and an NFC device and a method for controlling an NFC HCI. In the method, a command message is transmitted from the host to the device. The command message includes one of recording data, reading data of the device, requesting the device to transmit predetermined data, and setting the device. A response message informing a performance result of a relevant command is transmitted from the device to the host in response to the command message. After that, an event message is transmitted from the device to the host when needed.

Description

technical field [0001] The present invention relates to a communication interface between a Near Field Communication (NFC) host and an NFC device. Background technique [0002] In terms of the communication interface between the NFC host and the NFC device or with the NFC chipset, versatility and compatibility are required. Special attention should be paid to the interface between a host (such as the MSM chip in a mobile phone and the microcontroller unit (MCU) in a mobile device) and the device or chipset connected to the host. [0003] figure 1 Interfaces between various NFC hosts (NFCH) and various NFC devices or NFC chipsets (NFCC) are illustrated. The interface between NFCH A 110 and NFCC A 210 is connected to upper layer 111 on the basis of an associated driver interface 112 implemented as driver A 113 suitable for connection to NFCCA 210 via a serial bus. The interface between the other NFCH B 120 and the other NFCC B 220 is connected to the upper layer 121 on the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/10G06F15/16
Inventor 柳承协闵相喆李炳旭金辰台
Owner LG ELECTRONICS INC
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