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xviii Preface
The book is structured as follows. Chapters 1–4 provide an introduction to the technology and
its standardization. Chapters 5–7 give a detailed presentation of the WCDMA standard, while
Chapters 8–11 cover the utilization of the standard and its performance. Chapters 12–16 present
HSPA and its evolution. TD-SCDMA is described in Chapter 18. The home base stations, also called
femtocells, are explained in Chapter 19. Chapter 20 covers terminal RF design challenges.
Chapter 1 briefly introduces the background, development, status and future of WCDMA/HSPA
radio. Chapter 2 presents examples of the current UMTS applications and the main uses cases.
Chapter 3 introduces the principles of the WCDMA air interface, including spreading, Rake
receiver, power control and handovers. Chapter 4 presents the background to WCDMA, the
global harmonization process and the standardization. Chapter 5 describes the architecture of
the radio access network, interfaces within the radio access network between base stations and
radio network controllers (RNC), and the interface between the radio access network and the
core network. Chapter 6 covers the physical layer (Layer 1), including spreading, modulation,
user data and signalling transmission, and the main physical layer procedures of power control,
paging, transmission diversity and handover measurements. Chapter 7 introduces the radio interface
protocols, consisting of the data link layer (Layer 2) and the network layer (Layer 3). Chapter 8
presents the guidelines for radio network dimensioning, gives an example of detailed capacity and
coverage planning, and covers GSM co-planning. Chapter 9 covers the radio resource management
algorithms that guarantee the efficient utilization of the air interface resources and the quality
of service. These algorithms are power control, handovers, admission and load control. Chapter
10 depicts packet access and presents the performance of packet protocols of WCDMA. Chapter
11 analyses the coverage and capacity of the WCDMA air interface. Chapter 12 presents the
significant Release 5 feature, High Speed Downlink Packet Access, HSDPA, and Chapter 13
the corresponding uplink counterpart High Speed Uplink Packet Access, HSUPA in Release 6.
Chapter 14 presents Multimedia Broadcast Multicast System, MBMS. Chapter 15 introduces HSPA
evolution in Releases 7, 8 and 9. Chapter 16 describes HSPA multicarrier evolution up to four
carriers. Long Term Evolution (LTE) in Releases 8 and 9 is presented in Chapter 17. The time
division duplex (TDD) based TD-SCDMA (Time Division Synchronous Code Division Multiple
Access) is illustrated in Chapter 18. The femtocells are presented in Chapter 19 and the challenges
in the terminal RF design in Chapter 20.
The 2nd edition contained coverage of the recently introduced key features of 3GPP Release 5
specifications, such as High Speed Downlink Packet Access, HSDPA and IP Multimedia Subsystem
(IMS). The 3rd edition of the book continued to deepen the coverage of several existing topics
both based on the field experiences and based on more detailed simulation studies. The 3rd edition
covered the main updates in 3GPP standard Release 6. The 4th edition added in detail 3GPP Release
6 features including High Speed Uplink Packet Access (HSUPA) Multimedia Broadcast Multicast
System (MBMS), HSPA evolution and terminal RF design challenges.
The 5th edition of the book introduces new material in the areas of HSPA evolution including
Releases 8 and 9, HSPA multicarrier solutions, GSM band refarming for HSPA, Integrated Mobile
Broadcast (IMB), TD-SCDMA description, femtocells, terminal power consumption estimates, services
and LTE.
This book is aimed at operators, network and terminal manufacturers, service providers, university
students and frequency regulators. A deep understanding of the WCDMA/HSPA air interface, its
capabilities and its optimal usage is the key to success in the UMTS business.
This book represents the views and opinions of the authors, and does not necessarily represent the
views of their employers.