By Erik Dahlman, Stefan Parkvall, Johan Skold
The upcoming 5G necessities from 3GPP, to be on hand in 2018, will contain LTE-Advanced seasoned in addition to a brand new 5G radio-access expertise. This sensible and intensely winning ebook, written by way of engineers operating heavily with 3GPP, supplies perception into the latest applied sciences and criteria followed through 3GPP, with designated causes of the categorical suggestions selected and their implementation in LTE, LTE-Advanced, and LTE-Advanced seasoned, in addition to offering a close description of the trail to 5G and the linked underlying applied sciences.
This variation has been completely revised and up to date to mirror the big extensions to LTE as brought in 3GPP Releases 12 and thirteen and the function of LTE within the upcoming 5G period. New to this variation contains up to date content material on:
- 4G and 5G Radio entry
- Spectrum for 4G and 5G
- Machine-Type communique
- Device-to-Device communique
- License-assisted entry
- Full-dimension MIMO
- Small-cell improvements, eIMTA, FDD+TDD aggregation, twin connectivity
- Requirements on and basic constitution of 5G instant entry, addressing the prevailing and new utilization situations for 5G
- Technical options for the recent 5G radio-access technology
The authors of this publication all paintings at Ericsson learn and feature been deeply fascinated by 3G and 4G improvement and standardization. they're top specialists within the box and are at the present time actively contributing to the standardization of 4G and 5G inside 3GPP.
- The major booklet on 3GPP standards for LTE, LTE-Advanced, and LTE-Advanced seasoned masking as much as and together with liberate thirteen, written by means of Ericsson engineers who're seriously considering the improvement of 3GPP specifications
- Ten new chapters and insurance of all significant gains brought with liberate 12 and 13
- Two thoroughly new chapters on 5G instant entry together with an in depth description of the most important know-how parts below improvement through 3GPP
Read Online or Download 4G LTE-Advanced Pro and The Road to 5G PDF
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Extra info for 4G LTE-Advanced Pro and The Road to 5G
The scheduler controls, for each time instant, to which users the different parts of the shared resource should be assigned and the data rate to be used for each transmission. , trying to dynamically adjust the data rate to match the instantaneous channel conditions) can be seen as a part of the scheduling functionality. However, even if the rate adaptation successfully selects an appropriate data rate, there is a certain likelihood of transmission errors. To handle transmission errors, fast hybrid-ARQ with soft combining is used in LTE to allow the device to rapidly request retransmissions of erroneously received data blocks and to provide a tool for implicit rate adaptation.
This is followed by a detailed description of the LTE physical-layer functionality for downlink and uplink transmission in Chapters 6 and 7, respectively. Chapter 8 contains a description of LTE retransmission mechanisms, followed by a discussion on the mechanisms available in LTE to support advanced scheduling and link adaptation in Chapter 9. Channel-state reporting to support scheduling, including handling of large antenna arrays, is covered in Chapter 10. Access procedures, necessary for a device (or a terminal, in 3GPP known as a user equipment, UE) to connect to the network, are the topic of Chapter 11.
The required flexibility and resulting requirements to support LTE operation in different paired and unpaired frequency arrangements are further discussed in Chapter 22. Operation in both paired and unpaired spectrum has been supported by 3GPP radioaccess technologies even before the introduction of LTE by means of FDD-based WCDMA/HSPA in combination with TDD-based TD-SCDMA radio. However, this was then achieved by means of, at least in the details, relatively different radio-access technologies leading to additional effort and complexity when developing and implementing dual-mode devices capable of both FDD and TDD operation.