By Martin Sauter

ISBN-10: 1118341481

ISBN-13: 9781118341483

Extensively up-to-date assessment of present and destiny community applied sciences, applications and devices 

This publication follows on from its winning predecessor with an advent to subsequent iteration community applied sciences, cellular units, voice and multimedia prone and the cellular net 2.0.  Giving a legitimate technical creation to 3GPP instant structures, this publication explains the choices taken in the course of standardization of the most well-liked instant community criteria this present day, LTE, LTE-Advanced and HSPA+.  It discusses how those parts strongly impression one another and the way community functions, on hand bandwidth, cellular machine services and new program suggestions will form the best way we speak within the future.  This moment variation offers a finished and broad-reaching exam of a fast-moving know-how to be able to be a welcome replace for researchers and execs alike. 

Key features:

  • Fully up-to-date and elevated to incorporate new sections together with VoLTE, the evolution to 4G, cellular web entry, LTE-Advanced, wireless safeguard and backhaul for instant networks
  • Describes the profitable commercialization of internet 2.0 companies reminiscent of fb, and the emergence of app shops, capsules and smartphones
  • Examines the evolution of cellular units and working structures, together with ARM and x86 structure and their software to voice-optimized and multimedia devices

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Additional resources for 3G, 4G and Beyond: Bringing Networks, Devices and the Web Together

Example text

Devices with better signal conditions can be preferred by the scheduler, while devices that are in temporary deep fading situations receive fewer packets. This helps to reduce transmission errors and improves overall throughput of the cell as, on average, Beyond 3G Network Architectures 31 frames are transmitted with more efficient modulation and coding schemes. Studies in [10, 11] have shown that an efficient scheduler can increase overall cell capacity by up to 30% compared with a simple scheduler that assigns timeslots in a round robin fashion.

6 Continuous Packet Connectivity Continuous Packet Connectivity (CPC) is a package of features introduced in the 3GPP standards to improve handling of mobile subscribers while they have a packet connection established, that is, while they have an IP address assigned. Taken together, they aim at reducing the number of state changes to minimize delay and signaling overhead by introducing enhancements to keep a device on the high-speed channels (in HSPA CellDCH state) for as long as possible, even while no data transfer is ongoing.

In Release 7 and 8, the 3GPP standards were thus extended to also use the high-speed downlink shared channels for these states, as described in [18, 19]. In practice this is done as follows: • Enhanced Cell-FACH — in the standard Cell-FACH state the mobile device listens to the S-CCPCH in the downlink as described earlier for incoming RRC messages from the RNC and for user data (IP packets). With the Enhanced Cell-FACH feature, the network can instruct a mobile device to observe a high-speed downlink control channel or the shared data channel directly for incoming RRC messages from the RNC and for user data.

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3G, 4G and Beyond: Bringing Networks, Devices and the Web Together by Martin Sauter


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