File Name: 3g networks architecture protocols and procedures .zip
What is 5G? What will 5G enable? When will 5G be ready? What will be the first applications for 5G? What will 5G devices offer? When will 5G devices be available?
Cellular Communication has become an important part of our daily life. Besides using cell phones for voice communication, we are now able to access the Internet, conduct monetary transactions, send text messages etc. However, the wireless medium has certain limitations over the wired medium such as open access, limited bandwidth and systems complexity. These limitations make it difficult although possible to provide security features such as authentication, integrity and confidentiality. The current generation of 3G networks have a packet switched core which is connected to external networks such as the Internet making it vulnerable to new types of attacks such as denial of service, viruses, worms etc. Cellular Networks have been around since the s and each year their subscribers increase at a very fast rate. First generation 1G networks were the first cellular networks introduced in the s.
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This review paper presents within a common framework the mobile station positioning methods applied in 2G, 3G, and 4G cellular networks, as well as the structure of the related 3GPP technical specifications. The evolution path through the generations is explored in three steps at each level: first, the new network elements supporting localization features are introduced; then, the standard localization methods are described; finally, the protocols providing specific support to mobile station positioning are studied. To allow a better understanding, this paper also brings a brief review of the cellular networks evolution paths. At first, the main drive behind the development of positioning techniques to support location services LCS in cellular networks was the need to locate any mobile station MS originating emergency calls.
Additionally, the evolved 3GPP system introduced a hybrid mobile network architecture supporting radio access technologies and several mobility mechanisms. We begin this chapter by introducing the LTE network reference model and define its various functional entities and its interconnection possibilities.
The Network Architecture needs to provide for various types of functionality and at the same time be able to deploy that functionality in different physical locations. The Future Network Architecture needs to provide for a lot of various types of functionality and at the same time it is required to be able to deploy that functionality in different physical locations. Therefore, the architecture is separated into functional domains and topological domains.
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