 Since mobile Ymax 2.0 is based on IEEE 802.16E and then M for the physical and the data link layer. So, similar to LTEA that was based on certain really advanced features, here also there are certain interesting wireless or the radio advanced features which are the highlights of Ymax. So, let's look at these one by one. Similar to LTEA carrier aggregation is the most important feature of mobile Ymax that helps the users achieve very high data rates adaptively. Since we've already covered it, so we would not like to discuss it any further. The other highlight is the femtocells which are similar to home in ODEA, the self-organizing networks we've already covered it in the context of LTEA and then relays. So, you see more or less all these features are quite similar to the ones provided by LTEA and that is why when we were discussing their comparison we said in NGN vision there is a possibility that these technologies can be interoperable hence integrable into a unified architecture. Let's get back to our advanced features. So, after carrier aggregation we have femtocells. Femtocells are basically base stations with very high transmit power over shorter distance. That is, these femtocells are wireless networks based on small scale home in ODEA like devices which are installed in the customer premises. Similar to home in ODEA, the primary purpose is to provide connectivity and high data rates. Since similar to home in ODEA, the distance is only restricted to few meters that is up to tens of meters, very high data rates can be achieved. The femtocells are also responsible to implement the quality of service features and the radio resource control on the user equipment, which is a mobile phone, a tablet or anything else. Essentially, the quality of service guidelines, how exactly it would be implemented, the class of quality of service, the breakdown of quality of service into network resource parameters such as bandwidth, latency, etc. are translated into femtocell based parameters which are actually determined by the core network. So, the core network servers are going to determine what quality of service is to be provisioned. Since this quality of service is to be enabled or provisioned in the wireless side, so there is a strong connection requirement that has to be established between the core network and the access side network that is our base station in femtocell. This connectivity is usually provided through well-known broadband technologies in the fixed domain as well as in the wireless domain like DSL, passive optical network, the cable broadband, etc. Then we have the self-organizing networks, not needing much introduction. We've discussed it in detail. The SON is implemented in mobile YMAX 2.0 for similar requirements as it was for LTEA like for neighbor discovery in case handoff is required between the base stations in mobile YMAX 2.0 environment to mitigate interference, provide load balancing if a certain base station is overloaded then its neighbor can be discovered and part of the load can be shed off there. Then certain frequencies need to be reallocated or reappropriated from one base station to the other and transmit power has to be automatically adjusted to handle the radio conditions like signal to noise ratio, S-I-S-I-N-R-C-I-N-R, etc. So SON essentially is implemented in more or less same manner as it has been proposed for LTEA. Then we have relay nodes or the repeater nodes. Relay nodes actually provide coverage by extending or increasing the transmit power in areas which are known as the blind areas whenever high noise is experienced there. So relays actually are passive devices which perform the well-known triple R operation. The design of relay is quite similar to that of base station because it has to be a wireless, all wireless device but it has limited capabilities. In addition to relaying from the base station towards the user equipment, a relay can forward the traffic or repeat the traffic to another relay and to another relay and to another relay. So this is actually known as the multi hop relaying. Multi hop relaying is a very advanced feature that allows the coverage in certain inaccessible areas which have very large distance between the user equipment and the base station. Thank you.