Download Design, Deployment and Performance of 4G-LTE Networks by Ayman ElNashar, Mohamed El-saidny, Mahmoud Sherif PDF

By Ayman ElNashar, Mohamed El-saidny, Mahmoud Sherif

Layout, Deployment and function of 4G-LTE Networks addresses the most important useful facets and top perform of 4G networks layout, functionality, and deployment. additionally, the e-book specializes in the end-to-end elements of the LTE community structure and assorted deployment eventualities of business LTE networks. It describes the air interface of LTE concentrating on the entry stratum protocol layers: PDCP, RLC, MAC, and actual Layer. The air interface defined during this booklet covers the innovations of LTE body constitution, downlink and uplink scheduling, and specified illustrations of the information stream around the protocol layers. It describes the main points of the optimization procedure together with functionality measurements and troubleshooting mechanisms as well as demonstrating universal matters and case experiences in response to genuine box effects. The booklet presents precise functionality research of key features/enhancements reminiscent of C-DRX for Smartphones battery saving, CSFB option to help voice calls with LTE, and MIMO innovations.

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6 Design, Deployment and Performance of 4G-LTE Networks On the HSPA+ side, Release 9 and beyond continued to build on the top of previous HSPA+ enhancements by introducing DC-HSUPA, MIMO + DC-HSDPA, and multi-carrier high speed downlink packet access (MC-HSDPA). The downlink of HSPA+ in this release is expected to reach 84 Mbps, while the uplink can reach up to 42 Mbps. Release 10 includes the standardization of LTE Advanced, the 3GPP’s 4G offering. It includes modification to the LTE system to facilitate 4G services.

2 Time Division Multiple Access (TDMA) In TDMA systems the channel bandwidth is shared in the time domain. It assigns a relatively narrow spectrum allocation to each user, but in this case the bandwidth is shared between a set of users. Channelization of users in the same band is achieved by a separation in both LTE Network Architecture and Protocols 7 frequency and time. The number of timeslots in a TDMA frame is dependent on the system. For example, GSM utilizes eight timeslots. TDMA systems are digital and therefore offer security features such as ciphering and integrity.

In this case the packet domain, that is, the GGSN/PGW, takes part in these functions. 24. This signaling interface supports the transfer of policy control and charging rules information (QoS) between the PCEF in the P-GW and a PCRF server. The Gx application has an own vendor specific Diameter application [20]. With regard to the Diameter protocol defined over the Gx interface, the PCRF acts as a Diameter server, in the sense that it is the network element that handles PCC rule requests for a particular area.

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