http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
5G NR and Enhancements: From R15 to R16 introduces 5G standards, along with the 5G standardization procedure. The pros and cons of this technical option are reviewed, with the reason why the solution selected explained. The book's authors are 3GPP delegates who have been working on 4G/5G standardization for over 10 years. Their experience with the 5G standardization process will help readers understand the technology. Thousands of 3GPP papers and dozens of meeting minutes are also included to help explain how the 5G stand came into form.
Front Cover -- 5G NR and Enhancements -- Copyright Page -- Contents -- List of contributors -- Preface -- 1 Overview -- 1.1 Introduction -- 1.2 Enhanced evolution of new radio over LTE -- 1.2.1 New radio supports a higher band range -- 1.2.2 New radio supports wide bandwidth -- 1.2.3 New radio supports more flexible frame structure -- 1.2.4 New radio supports flexible numerology -- 1.2.5 Low-latency enhancements of air interface by new radio -- 1.2.6 Enhancement of reference signals in new radio -- 1.2.7 Multiple input multiple output capability enhancement by new radio -- 1.2.8 Enhancement of terminal power saving by new radio -- 1.2.9 Mobility enhancement by new radio -- 1.2.10 Enhancement of quality of service guarantee by new radio -- 1.2.11 Enhancement of core network architecture evolution by new radio -- 1.3 New radio's choice of new technology -- 1.3.1 New radio's choice on new numerology -- 1.3.2 New radio's choice on new waveform -- 1.3.3 New radio's choice on new coding -- 1.3.4 New radio's choice on new multiple access -- 1.4 Maturity of 5G technology, devices, and equipment -- 1.4.1 The development and maturity of digital devices and chips have well supported the research and development needs of 5... -- 1.4.2 5G active large-scale antenna equipment can meet the engineering and commercial requirements -- 1.4.3 Millimeter wave technology-devices and equipment are becoming more and more mature -- 1.5 R16 enhancement technology -- 1.5.1 Multiple input multiple output enhancement -- 1.5.1.1 eType II codebook -- 1.5.1.2 Multitransmission and reception points enhancement -- 1.5.1.3 Multibeam transmission enhancement -- 1.5.1.4 Uplink full-power Tx -- 1.5.2 Ultrareliable and low latency communications enhancement-physical layer -- 1.5.3 Ultrareliable and low latency communications enhancement high layer.
1.5.3.1 Supporting time-sensitive communication -- 1.5.3.2 Data replication and multiconnection enhancement -- 1.5.3.3 Intrauser priority/reuse enhancement -- 1.5.4 UE power-saving enhancement -- 1.5.5 Two-step RACH -- 1.5.6 Uplink band switching transmission -- 1.5.7 Mobility enhancement -- 1.5.7.1 Dual active protocol stack enhancement -- 1.5.7.2 Conditional handover -- 1.5.8 Multi-RAT dual connectivity enhancement -- 1.5.9 New radio-vehicle to everything -- 1.5.10 New radio-unlicensed -- 1.6 Summary -- References -- 2 Requirements and scenarios of 5G system -- 2.1 Current needs and requirements in the 5G era -- 2.1.1 Requirements of high data rate -- 2.1.1.1 Enhanced multimedia service -- 2.1.1.2 Immersive interactive multimedia services -- 2.1.1.3 Hotspot services -- 2.1.2 Requirements from vertical industries -- 2.1.2.1 Low-latency communication -- 2.1.2.2 Reliable communication -- 2.1.2.3 Internet of Things communication -- 2.1.2.4 High-speed communication -- 2.1.2.5 High-precision positioning communication -- 2.2 Typical scenarios -- 2.2.1 Enhanced mobile broadband -- 2.2.2 Ultrareliable and low latency communications -- 2.2.3 Massive machine type communications -- 2.3 Key indicators of 5G systems -- 2.4 Summary -- References -- 3 5G system architecture -- 3.1 5G system architecture -- 3.1.1 5G system architecture requirements -- 3.1.2 5G system architecture and functional entities -- 3.1.2.1 Loose coupling and service-oriented network element functions -- 3.1.2.2 Open and secure network interface -- 3.1.2.3 Unified network function management -- 3.1.2.4 Enable continuous integration/continuous deployment time to market microservices -- 3.1.3 5G end-to-end architecture and protocol stack based on 3rd Generation Partnership Project access -- 3.1.3.1 End-to-end protocol stack of 5G control plane based on 3rd Generation Partnership Project access.
3.1.3.2 End-to-end protocol stack of 5G User Plane based on 3rd Generation Partnership Project access -- 3.1.4 5G end-to-end architecture and protocol stack based on non-3rd Generation Partnership Project access -- 3.1.5 5G system identifiers -- 3.2 The 5G RAN architecture and deployment options -- 3.2.1 Description of EN-DC and SA arechitecture -- 3.3 Summary -- References -- Further reading -- 4 Bandwidth part -- 4.1 Basic concept of bandwidth part -- 4.1.1 Motivation from resource allocations with multiple subcarrier spacings -- 4.1.2 Motivations from UE capability and power saving -- 4.1.3 Basic bandwidth part concept -- 4.1.4 Use cases of bandwidth part -- 4.1.5 What if bandwidth part contains synchronization signal/physical broadcast channel block? -- 4.1.6 Number of simultaneously active bandwidth parts -- 4.1.7 Relation between bandwidth part and carrier aggregation -- 4.2 Bandwidth part configuration -- 4.2.1 Introduction of common RB -- 4.2.2 Granularity of common RB -- 4.2.3 Reference point-point A -- 4.2.4 The starting point of common RB-RB 0 -- 4.2.5 Indication method of carrier starting point -- 4.2.6 Bandwidth part indication method -- 4.2.7 Summary of the basic bandwidth part configuration method -- 4.2.8 Number of configurable bandwidth parts -- 4.2.9 Bandwidth part configuration in the TDD system -- 4.3 Bandwidth part switching -- 4.3.1 Dynamic switching versus semistatic switching -- 4.3.2 Introduction of bandwidth part activation method based on DCI -- 4.3.3 DCI design for triggering bandwidth part switching-DCI format -- 4.3.4 DCI design for triggering bandwidth part switching-"explicitly trigger" versus "implicitly trigger" -- 4.3.5 DCI design for triggering bandwidth part switching-bandwidth part indicator -- 4.3.6 Introduction of timer-based bandwidth part fallback.
4.3.7 Whether to reuse discontinuous reception timer to implement bandwidth part fallback? -- 4.3.7.1 Review of discontinuous reception timer -- 4.3.7.2 Whether to reuse discontinuous reception timer for bandwidth part fallback timer? -- 4.3.8 Bandwidth part inactivity timer design -- 4.3.8.1 Configuration of bwp-InactivityTimer -- 4.3.8.2 Condition to start/restart bwp-InactivityTimer -- 4.3.8.3 Condition to stop bwp-InactivityTimer -- 4.3.9 Timer-based uplink bandwidth part switching -- 4.3.10 Time-pattern-based bandwidth part switching -- 4.3.10.1 The principle of time-pattern-based bandwidth part switching -- 4.3.10.2 The competition between time-pattern-based bandwidth part switching and timer-based bandwidth part switching -- 4.3.10.3 The reason why time-pattern-based bandwidth part switching was not adopted -- 4.3.11 Automatic bandwidth part switching -- 4.3.11.1 Paired switching of DL bandwidth part and UL bandwidth part in TDD -- 4.3.11.2 DL BWP switching caused by random access -- 4.3.12 Bandwidth part switching delay -- 4.4 Bandwidth part in initial access -- 4.4.1 Introduction of initial DL bandwidth part -- 4.4.2 Introduction of initial UL bandwidth part -- 4.4.3 Initial DL bandwidth part configuration -- 4.4.4 Relationship between the initial DL bandwidth part and default DL bandwidth part -- 4.4.5 Initial bandwidth part in carrier aggregation -- 4.5 Impact of bandwidth part on other physical layer designs -- 4.5.1 Impact of bandwidth part switching delay -- 4.5.2 Bandwidth part-dedicated and bandwidth part-common parameter configuration -- 4.6 Summary -- References -- 5 5G flexible scheduling -- 5.1 Principle of flexible scheduling -- 5.1.1 Limitation of LTE system scheduling design -- 5.1.2 Scheduling flexibility in the frequency domain -- 5.1.2.1 Resource allocation based on bandwidth part.
5.1.2.2 Increase granularity of frequency-domain resource allocation -- 5.1.2.3 Adopt more dynamic resource indication signaling -- 5.1.3 Scheduling flexibility in the time domain -- 5.1.3.1 Low-latency transmission -- 5.1.3.2 Multibeam transmission -- 5.1.3.3 Flexible multiplexing between channels -- 5.1.3.4 Effectively support unlicensed spectrum operation -- 5.2 5G resource allocation -- 5.2.1 Optimization of resource allocation types in the frequency domain -- 5.2.2 Granularity of resource allocation in the frequency domain -- 5.2.3 Frequency-domain resource indication during BWP switching -- 5.2.4 Determination of frequency-hopping resources in BWP -- 5.2.5 Introduction to symbol-level scheduling -- 5.2.6 Reference time for indication of starting symbol -- 5.2.7 Reference SCS for indication of K0 or K2 -- 5.2.8 Resource mapping type: type A and type B -- 5.2.9 Time-domain resource allocation -- 5.2.10 Multislot transmission -- 5.3 Code Block Group -- 5.3.1 Introduction of Code Block Group transmission -- 5.3.2 CBG construction -- 5.3.3 CBG retransmission -- 5.3.4 DL control signaling for CBG-based transmission -- 5.3.5 UL control signaling for CBG-based transmission -- 5.4 Design of NR PDCCH -- 5.4.1 Considerations of NR PDCCH design -- 5.4.1.1 Changing from cell-specific PDCCH resources to UE-specific PDCCH resources -- 5.4.1.2 PDCCH "floating" in the time domain -- 5.4.1.3 Reduced complexity of DCI detection -- 5.4.2 Control Resource Set -- 5.4.2.1 External structure of CORESET -- 5.4.2.2 Internal structure of CORESET -- 5.4.3 Search-space set -- 5.4.4 DCI design -- 5.4.4.1 The choice of two-stage DCI -- 5.4.4.2 Introduction of group-common DCI -- 5.5 Design of NR PUCCH -- 5.5.1 Introduction of short-PUCCH and long-PUCCH -- 5.5.2 Design of short-PUCCH -- 5.5.3 Design of long-PUCCH -- 5.5.4 PUCCH resource allocation.