Sunday, May 26, 2013

The DEVICE side of it

In this challenging month, we discussed about the data challenge from the network side, now lets move to the device side of it.

I could not find much resources about the device side of the data challenge, so I am going to write whatever I feel are the ways out.

1. Modulation techniques : Implementing higher modulation techniques can be a solution for the increasing data demands 

2. Beamforming : Advanced beamforming techniques can also serve as a solution.

3. Smart Antennas : Antennas capable of implementing MIMO or multi user MIMO.

4. DSP : A better or improved data processing and algorithms.

Next month I am going to talk about VoLTE and Network deployment!

Sunday, May 12, 2013

This month, lets discuss about the Data challenge..Everyone is talking
(worrying) about the increasing number of connected devices, increasing data usage, mobile data offloading, hotspots etc etc..So lets discuss the mobile tsunami this month..
The solution needs to come from both sides, device as well as network side.




From the network side , to tackle the increasing number of users and higher data demands the networks people have come up with may different ideas. So here we are. There are three major solutions to tackle the increasing mobile data demands. Lets discuss them one by one.

1. Data offloading: The words are explanatory. In this case, the data is offloaded or transferred to the other possible options or existing networks. This is the reason we find "hotspots" everywhere these days. (And get happy that I'm not wasting my data). WiFi and femtocell are most popular ways for data offloading.

2. Using more spectrum: The concept of ASA (Authorized Shared Access) concept was explained in one of the Qualcomm webinars. I think it was proposed by Nokia and Qualcomm. In their words, ASA is defined as "To Enable Timely Availability and Licensed Use of Harmonized Spectrum for Mobile with Predictable Quality of Service." 
{source: http://ipsc.jrc.ec.europa.eu/fileadmin/repository/sta/corsa/docs/SDR_ASA.pdf}

Let me explain this concept in detail, In ASA , the bands which have been already assigned to defense/satellite/broadcasting etc can be shared for mobile broadband as these are not used 24*7 all days. Secondly this is licensed  so QoS can be provided.

3. Increasing Capacity: This one comes from the textbook :):)..So what all can be done to increase the capacity. The approaches of cell splitting and sectoring have already been implemented. Now macrocells, picocells and even femto cells are being planned and implemented.


Next time, Lets talk about the data challenge from the Device side.