Study Item for cellular communication at above 6GHz spectrum

3GPP - is not just 3G now..

Lot of activities and expectation from the  next generation 5G technology are in full swing among different forums and academics groups. 3GPP the standardization body has also started studying the components which are likely to be the building blocks of 5G technology. Some of the key technologies that are expected to be the center of 5G systems are Massive MIMO and mmWave. 

Some of the leading companies like Samsung, NSN, Ericsson, ZTE, Huawei have been contributing to the study of new schemes for Release 13 of LTE. During the recent 3GPP RAN1 meeting (#81, Fukuoka, Japan) the study of FD-MIMO was completed, where the group demonstrated (through simulation) and concluded that significant gains can be achieved by using Active Antenna Systems (AAS) with controllable electronic beams rather than the conventional sector antenna. 

With demanding spectrum, the next generation networks are gazing at higher bands above 6GHz to satisfy high data rate as well as more connected devices. During the RAN Plenary meeting (#68 at Sweden), Samsung submitted a study proposal to study the channel models at 28GHz, where 500+MHz bandwidth are available and suitable for cellular communication for cell of size ~200m. 

Contribution available here 

Proposed target date to develop channel model is Q1 2016 (Coincides with 3GPP RAN1#84bis at Seoul). The objective is to extend the 3GPP 3D-channel model for the higher bands.

Additional Study Item proposal by CMCC -  Study on Scenarios and Requirements for Next Generation Access Technologies (5G) [ppt]

Understanding Reflect Package in Golang

A sample code written in #golang to understand the reflect package and the interfaces. You can try running the code on http://play.golang.org

Go Lang - Quick Setup

I had almost written this post two weeks back using the wordpress mobile client on my #samsung note stylus (handwriting mode) during a train travel. Though the client indicated that the post is saved as draft on the mobile client, it never uploaded to the server and I lost all my content. Coming back to the post, the intention of this post is for someone who has decent knowledge of C/C++ programming and wants to give a try to #golang.

Gmail Account hacked mails

New email hack on gmail accounts..

Have received emails from frienda with the following content. Please change your gmail passwords. Also check authorized apps which are misusing the permissions.

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Hi,

Did you receive the documents which I have sent earlier?

If not, I have re-uploaded them on my Google drive.

Click Here, I will upload rest of the documents soon.

Regards,
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KDE Plasma Wallpaper (Devel)

It started with inability to control the wallpaper on KDE 4.10 desktop. Though there are few plasma add-ons for wallpaper included in kdeplasma-addons. Though you have interactive Map/Globe and Mandelbrot plugins. I found the basic Image type wallpaper lacks some functionality. Few settings the Image-Type is shown here