Also, here are some templates to help you prepare your own slides on product overview and product roadmap. This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. If you disable this cookie, we will not be able to save your preferences. This means that every time you visit this website you will need to enable or disable cookies again. Mobile Networks Made Easy. Here are some helpful downloads Thank you for reading this post, I hope it helped you in developing a better understanding of cellular networks. Privacy Overview This website uses cookies so that we can provide you with the best user experience possible.
Strictly Necessary Cookies Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. Enable or Disable Cookies. Enable All Save Settings.
The data of other users appears as noise in this decoding process. Using a wide frequency band makes the system inherently resistant to many of the aspects of radio communication which plague narrow band systems, such as bursty noise, multipath reflections, and other interfering transmissions.
Maximum commonality between FDD and TDD variants is assured by a single set of higher layer protocols and shared physical layer parameters, as far as possible. A flexible radio protocol allows multiplexing of several services speech, video, data Real-time and non-real-time services are catered for by configurable quality of service parameters delay, bit error probability, frame error ratio.
The architecture allows for point-to-point and also point-to-multipoint services broadcast, multicast. Starting with the first generation analogues systems, new 2G digital systems were introduced and these have moved on so that 5G technology is now being developed.
Read more about Mobile Phone History. It employs a 5 MHz channel bandwidth. Using this bandwidth it has the capacity to carry over simultaneous voice calls, or it is able to carry data at speeds up to 2 Mbps in its original format. However with the later enhancements of HSDPA and HSUPA described in other articles accessible from the cellular telecommunications menu page included in later releases of the standard the data transmission speeds have been increased to In this way the investment required is kept to a minimum.
The first modes to be employed are FDD modes where the uplink and downlink are on different frequencies. The spacing between them is MHz for Band 1 networks being currently used and rolled out. This provided the basic access elements as well as circuit switched voice.
The additional of packet data with GPRS required additional network entities to be added. It was the combination of these two network elements that provided the basis for the 3G UMTS network architecture. The radio access network changed considerably as a completely new radio interface was used based around the use of CDMA.
Also the handset name was changed to user equipment indicating a change in its use from just a voice phone to a data set which could have been a phone, PDA or laptop, with many laptops requiring a 3G dongle to plug into a USB port. The core network is then the overall entity that interfaces to external networks including the public phone network and other cellular telecommunications networks. It forms the final interface with the user. In view of the far greater number of applications and facilities that it can perform, the decision was made to call it a user equipment rather than a mobile.
However it is essentially the handset in the broadest terminology , although having access to much higher speed data communications, it can be much more versatile, containing many more applications. It consists of a variety of different elements including RF circuitry, processing, antenna, battery, etc. The UE can take a variety of forms, although the most common format is still a version of a "mobile phone" although having many data capabilities.
Other broadband dongles are also being widely used. The overall radio access network, i.
0コメント