July 2010
Intermediate to advanced
648 pages
19h 58m
English
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Chapter 8. WCDMA Evolution - HSPA and MBMS
The first step in the evolution of WCDMA radio access is the introduction of High-Speed Downlink Packet Access (HSDPA) in Release 5 of the 3GPP/WCDMA specifications. Although packet-data communication is supported already in the first release of the WCDMA standard, HSDPA brings further enhancements to the provisioning of packet-data services in WCDMA, both in terms of system and end-user performance. The downlink packet-data enhancements of HSDPA are complemented by Enhanced Uplink, introduced in Release 6 of the 3GPP/WCDMA specifications. HSDPA and Enhanced Uplink are often jointly referred to as High-Speed Packet Access (HSPA).
As discussed in Chapter 2, important requirements for cellular systems ...
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