| To start with, you will have to know the | | | | modulation but allows multiple access to users. |
| description of each word of this topic. Ultra here | | | | The Frequency division duplex (FDD) scheme is |
| refers to the speed in delivering of the | | | | employed here. The network architectures |
| technological services like audios, videos and so | | | | supported by this are wide, vast and a lots of |
| on, simply defined as the speed of data | | | | mixed, distributed and flat architectures, also |
| transmission. Mobile refers to the wireless | | | | possessing IP network architecture. The OFDM |
| services; say like Wi-Max, Wi-Fi. Broadband is the | | | | and OFDMA systems are used and hence they |
| speed capabilities which is as high as some | | | | are well suited for wide, large scale bandwidths |
| hundred megabits per second. The ultra mobile | | | | between 1.25 - 20 MHz. |
| broadband technology, also called shortly as UMB | | | | UMB is a very high bandwidth technology that is |
| is an evolving technology in telecommunication | | | | clear with the range of bandwidth it provides. It |
| systems. It is the cellular technology that is | | | | allows for an impossible application by using TCP |
| designed to cope up and compete with the newer | | | | IP network. It provides a very high quality service |
| and advanced technologies in the corresponding | | | | with a better capacity and increased efficiency, as |
| field. It is a so called fourth generation technology, | | | | it offers a high range of bandwidth. |
| as it makes the things that were previously | | | | UMB uses an air interface of OFDM, along with it |
| determined as impossible as to be done. One such | | | | also employs the use of MIMO, Multiple Input |
| feature of the fourth generation technology is the | | | | Multiple output and SDMA, Space division multiple |
| mobile online gaming and mobile video streaming | | | | access. They both are advanced techniques that |
| with high definition. This ultra mobile broadband is | | | | are applied to the antenna, thereby holding a |
| the enhanced version of CDMA mobile standards | | | | cause to provide a good overall coverage and |
| along with some more applications and features. | | | | greater capacity and the use of multiple antennas |
| The features of the ultra mobile broadband are | | | | improve the quality of deployments. The channel |
| so vast than can be summarized as the follows. | | | | capacity too is enhanced than the single path |
| The UMB provides a high defined user data rated | | | | channel as the multiple paths is used in a radio |
| that range over 275 Mbps in the downlink and | | | | path. |
| over 75 Mbps in the uplink of data. The interface | | | | Along with MIMO and SDMA, the UMB also utilizes |
| used in this technology is of OFDM / OFDMA air | | | | some sophisticated control mechanisms to |
| interface, where OFDM is Orthogonal Frequency | | | | optimize as per the available conditions and the |
| Division Multiplex, a transmission with less | | | | user requirements. It allows the transmission in |
| modulated using a large number of close spaced | | | | the end to end system capabilities, of variable |
| carriers. And OFDMA is orthogonal frequency | | | | length of packets as well as in the quality of |
| division multiple access, that uses OFDM | | | | service (QoS). |