LTE Interfaces and Protocols
The main interfaces in LTE are Uu,
S1-MME, X2, S1-U, S11 and S5.
LTE Uu: -
This is the air interface between UE
and eNB. LTE layer 1 is dealt with later. RRC is the protocol that is used for
communication between UE and eNB. Above RRC there is a NAS layer in UE. This
NAS layer terminates at MME and eNB shall silently pass the NAS messages to
MME.
LTE S1-MME: -
eNB and MME communicate using this IP
interface. S1-AP is application layer interface. The transport protocols used
here is SCTP. (Stream control transmission protocol)
LTE X2: -
This
interface is used by a eNB to communicate to other eNB. This again is a IP
interface with SCTP as transport. X2-AP is the application protocol used by
eNB’s to communicate.
LTE S11: -
An IP
interface between MME and SGW! GTPv2 is the protocols used at the application
layer. GTPv2 runs on UDP transport. This interface must and should run GTPv2.
LTE S5: -
This is the
interface between SGW and PGW. This again is an IP interface and has two
variants. S5 can be a GTP interface or PMIP interface. PMIP variant is used to
support non-trusted 3GPP network access.
LTE S1-U: -
User plane
interface between eNB and SGW! GTP-U v1 is the application protocol that
encapsulates the UE payload. GTP-U runs on UDP.
All the above IP interfaces can be of IPv4 or
IPv6. Few interfaces can be of IPv4 and few can be of IPv6. From the
specification side there are no restrictions.
Comments
It looks like some of the written text in your posts are
running off the screen. Can somebody else please comment and
let me know if this is happening to them as well?
This might be a issue with my web browser because I've had this happen before.
Thanks
quick shout out and tell you I truly enjoy reading through your blog posts.
Can you recommend any other blogs/websites/forums that deal with the same topics?
Thanks!
Exploring in Yahoo I at last stumbled upon this web site.
Reading this info So i am happy to show that I have an incredibly just right uncanny
feeling I came upon just what I needed. I so much for sure will make certain to do not omit this web site and provides it a
glance regularly.
I did however expertise some technical issues using this web site, since I experienced to reload the website a lot
of times previous to I could get it to load properly.
I had been wondering if your hosting is OK?
Not that I'm complaining, but sluggish loading instances times will sometimes affect your placement in google and can damage your high-quality score if ads and marketing with Adwords.
Well I am adding this RSS to my email and can look out for
much more of your respective interesting
content. Make sure you update this again soon.
and I am shocked why this accident didn't came about earlier!
I bookmarked it.
your situation; we have developed some nice methods and
we are looking to trade methods with other folks, why not shoot me an email if interested.
Does operating a well-establіѕhed website like yours reqսire a massіve amount wοrk?
I am complｅtely new to writing a bloց however I do write
in my diary every day. I'd like to start a bⅼog so I can easily share my experience and thoսghts online.
Ⲣlease let mｅ know if you hаve any кіnd of idеas or
tips for new aspiring bloggегs. Appreciate it!
What may you recommend about your post that you made a few days in the past?
Any sure?
clicked on the -Notify me when new comments are added- checkbox and now each time a comment is added I get 4 emails with the same comment.
There has to bbe an easy method you are able to removve me from that service?
Kudos!
unintentionally, and I'm stunned why this coincidence did not
came about in advance! I bookmarked it.
here to go back the desire?.I'm trying to in finding things
to enhance my web site!I suppose its adequate to make use of a few
of your ideas!!
I have bookmarked it for later!
team of volunteers and starting a new initiative
in a community in the same niche. Your blog provided us
useful information to work on. You have done a wonderful job!
indicates is that if you happen to miss out on among your preferred programs.
You can see it completely with the need feature. You easily seek out the program that you intend to see in the database of the channels as well as find whatever program that
you missed out on and intend to view. You will certainly no longer have to worry about using your Tivo program or pay your regular monthly service fees from your cord firm.
If you found this post on "why individuals favor to enjoy on the internet tv" practical;
visit our site below. You will be provided instant accessibility to among the top Satellite TV for PC carriers.
In just 5 minutes you can start surfing as much as 3000 networks or even more!
I needs to spend some time learning more or working out more.
Thanks for excellent information I was on the lookout for this
info for my mission.
knowledge.
I needs to spend some time learning more or understanding more.
Thanks for wonderful info I was looking for this information for my mission.
or if I have something to add to the conversation. Usually
it is caused by the fire communicated in the post I read.
And after this article "LTE Interfaces and Protocols".
I was actually moved enough to post a thought :
-P I actually do have some questions for you if it's okay.
Could it be simply me or does it give the impression like a few of the responses
look like coming from brain dead people? :-P And, if you are posting at
other sites, I would like to keep up with you. Could you
make a list all of your community pages like your linkedin profile, Facebook page or twitter
feed?