LLCP vs NFCIP

[reformer]

What are the differences and similarities of NFC P2P protocols LLCP and NFCIP ?

[nayan_trivedi]

It is layer protocol defined in the nfc forum http://www.nfc-forum.org/.
Hope you will get your answer.

[reformer]

Hi Nayan,

Thanks for your reply.

I have used NFCIP-1 protocol before and communicated between a configured target and an initiator phone.
Now i am in need to communicate with that NFCIP target using LLCP protocol.
To do this first i need to know the differences and similarities of these two protocols.

If you have any further idea regarding these protocols, please do share it.

[nayan_trivedi]

Hi friend if you have ieee account than this ieee paper may be enhance your knowledge it is published in 2009 which is
"Analysis and Test Results of Tunneling IP over NFCIP-1" in this paper concept for the test system that can establish an IP connection over NFC.

NFCIP-1 using inductive coupled devices operating at the centre frequency of 13,56 MHz for interconnection of computer peripherals. It also defines both the Active and the Passive communication modes of NFCIP-1 to realize a communication network using Near Field Communication devices for networked products and also for consumer equipment.

This International Standard specifies, in particular, modulation schemes, codings, transfer speeds and frame format of the RF interface, as well as initialization schemes and conditions required for data collision control during initialization. Furthermore, this International Standard defines a transport protocol including protocol activation and data exchange methods.

Information interchange between systems also requires, at a minimum, agreement between the interchange parties upon the interchange codes and the data structure.

nfcip peer to peer communication is possible this mostly work with layer1 0r 3 approach in osi layer model which is network layer and for mainly concern in tcp/ip network within ip network layer or at physical layer.
whereas llcp is mainly point to point communication protocol at layer 2 data link layer for actual implementation of network stack.
Some nfcip1 related thread available with this link
http://www.ecma-international.org/pu...s/Ecma-340.htm

One article regarding work with nfcip-1 "NXP_MEINDL_NFCIP1SecurityStandardProtectsNearFieldCommunication"
is also good.

Hope I will give you some smile.

[mroland]

Hallo nayan trivedi,

the original poster was actually talking about LLCP (NFC Logical Link Control Protocol) vs. NFCIP-1 (NFC Interface and Protocol -1). NFCIP-1 has nothing to do with tunneling IP (internet protocol) over an NFC link. Therefore, also the paper by Grünberger et al. will not be of much help here.

br,
Michael

[mroland]

Hallo Reformer,

you should take a look at NFC Forum's LLCP specification (get it here). You can't talk about differences and similarities between the two protocols (NFCIP-1 and LLCP). In fact, the NFC LLCP will typically be used on top of the NFCIP-1 peer-to-peer protocol.

So, the typical protocol stack would look like this:

+----------------------+
|     Applications     |
+----------------------+
|          Transport   |
|       ---------------|
| LLCP   Link Control  |
|       ---------------|
|         MAC Mapping  |
+----------------------+
| NFCIP-1 Peer-to-Peer |
+----------------------+

br,
Michael

[nayan_trivedi]

HEllo MRoland
I write that information in my 5th paragraph.
I just added that some inforamation in it....
Pls check that sir.
And link given by you already I informed him.
Pls check...