Written by leading experts in the field, the first edition of WCDMA for UMTS quickly became established as the best-selling and most highly respected book on the air interface of 3G cellular systems. Fully revised and updated, the fourth edition now covers the key features of 3GPP Release '7 ensuring its position as the leading principal resource in this constantly progressing area. Follows on from three highly successful new editions and one revised edition which have sold in excess of 36,500 copies in their six year lifespan This latest edition contains three new chapters and approx. 70 pages of new material covering the key features of 3GPP Release 7, and introducing the principles of Long Term Evolution (LTE) of 3GPP Release 8. High speed uplink packet access (HSUPA) of 3GPP Release 6 Multimedia broadcast multicast system (MBMS) of 3GPP Release 6 Basic principles of Long Term Evolution (LTE) of 3GPP Release 8 Three new chapters have been added, enabling this reference to remain as the leading text in the area: Highlights: Covers WCDMA, High speed downlink packet access (HSDPA), High speed uplink packet access (HSUPA) and Multimedia Broadcast and Multicast System (MBMS) solutions Analyses HSDPA simulations and field measurements Introduces details of HSUPA concept and expected data rates Presents HSPA evolution in Release 7 including delay optimization and VoIP support Covers MBMS architecture and performance