By Erik Dahlman
Reflecting the hot crowning glory of LTE’s specification, the hot version of this bestseller has been absolutely up to date to supply an entire photograph of the LTE method. the most recent LTE criteria are integrated at the radio interface structure, the actual layer, entry approaches, MBMS, including 3 fresh chapters on LTE Transmission approaches, versatile Bandwidth in LTE and LTE evolution into IMT-Advanced.
Key applied sciences awarded contain multi-carrier transmission, complex single-carrier transmission, complicated receivers, OFDM, MIMO and adaptive antenna ideas, complicated radio source administration and protocols, and varied radio community architectures. Their function and use within the context of cellular broadband entry quite often is defined. either a high-level assessment and extra precise step by step motives of HSPA and LTE implementation are given. an summary of different comparable platforms reminiscent of TD SCDMA, CDMA2000, and WiMAX is usually provided.
The new version has updated insurance of the lately released LTE unencumber eight radio-access average, giving the reader perception into the continuing and destiny technique of LTE and LTE-Advanced standardisation.
Coverage on LTE during this variation contains ( overall of 270 pages on LTE):
- Easy-to-access review of the LTE protocol layers
- Complete description of LTE actual layer together with reference signs, regulate signalling, multi-antenna transmission schemes
- Covers either FDD and TDD, their basic distinction and their impression at the LTE design
- Detailed description of entry systems together with cellphone seek, random entry, broadcast of approach information
- Transmission techniques, together with retransmission protocols, scheduling, uplink strength control
- Evolution in the direction of IMT-Advanced ("4G")
"Reading a specification calls for a few attempt. After examining the spec, you are going to be aware of WHAT to transmit, yet no longer WHY and the way. this is often the place our e-book turns into vital. not just does it supply an easy-to-read description of the signs, systems, and mechanisms in LTE, it additionally tells you WHY a undeniable sign, channel or technique is current and the way it's used. After examining the booklet, you might have an exceptional realizing on how LTE works and why it's designed how it is." - the authors
The authors of the e-book all paintings at Ericsson study and are deeply fascinated with 3G improvement and standardisation because the early days of 3G examine. they're top specialists within the box and are this day nonetheless actively contributing to the standardisation of either HSPA and LTE inside 3GPP. This contains information of the factors and applied sciences (160 new pages): LTE radio interface structure, LTE actual layer and LTE entry procedures.
Read or Download 3G Evolution: HSPA and LTE for Mobile Broadband PDF
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Extra info for 3G Evolution: HSPA and LTE for Mobile Broadband
Chapter 13 will go through the requirements in more detail. Most notable are the requirements on high data rate at the cell edge and the importance of low delay, in addition to the normal capacity and peak data rate requirements. Furthermore, spectrum flexibility and maximum commonality between FDD and TDD solutions are pronounced. During the fall 2005, 3GPP TSG RAN WG1 made extensive studies of different basic physical layer technologies and in December the TSG RAN plenary decided that the LTE radio access should be based on OFDM in the downlink and single carrier FDMA in the uplink.
1 The standardization process Setting a standard for mobile communication is not a one-time job, it is an ongoing process. The standardization forums are constantly evolving their standards trying to meet new demands for services and features. 1: 1. 2. 3. 4. Requirements, where it is decided what is to be achieved by the standard. Architecture, where the main building blocks and interfaces are decided. Detailed specifications, where every interface is specified in detail. Testing and verification, where the interface specifications are proven to work with real-life equipment.
Thus, 3GPP is working on two approaches for 3G evolution: the LTE and the HSPA Evolution. Both approaches have their merits. LTE can operate in new and more complex spectrum arrangements (although in the same spectrum bands as WCDMA and other 3G technologies) with the possibility for new designs that do not need to cater for terminals of earlier releases. HSPA Evolution can leverage on the installed base of equipment in the 5 MHz spectrum but needs to respect the backward compatibility of earlier terminals.