Content for TR 21.915 Word version: 15.0.0
6 Critical Communications
7 Machine-Type of Communications (MTC) and Internet of Things (IoT)
8 Vehicle-to-Everything Communications (V2X) Improvements
9 Improvements of Mission Critical (MC)
10 Features related to WLAN and unlicensed spectrum
11 Other new features
12 System enhancements
13 LTE improvements
14 OAM improvements
15 Work Items for which no summary is needed
A Structure of 5GS Rel-15 3GPP work
B Process to get further information
$ Change history
6 Critical Communications p. 45
6.1 EPC support for E-UTRAN Ultra Reliable Low Latency Communication p. 45
6.2 Highly Reliable Low Latency Communication for LTE p. 45
7 Machine-Type of Communications (MTC) and Internet of Things (IoT) p. 49
7.1 Improvements of Machine-Type of Communications (MTC) and Internet of Things (IoT) p. 49
7.2 Further enhancements for Extended Coverage GSM for support of Cellular Internet of Things p. 51
7.2.1 Introduction p. 51
7.2.2 Energy Efficient Paging Reception with EC Paging Indication channel p. 51
7.2.3 Deferred System Information Acquisition in EC operation and for PEO p. 52
7.3 Even further enhanced MTC for LTE p. 53
7.3.1 Support for new use cases p. 53
7.3.2 Reduced latency p. 53
7.3.3 Reduced UE power consumption p. 54
7.3.4 Increased spectral efficiency p. 54
7.3.5 Improved access control p. 55
7.4 Other MTC related work p. 55
8 Vehicle-to-Everything Communications (V2X) Improvements p. 57
8.1 Enhancement of 3GPP support for V2X scenarios p. 57
8.2 Enhancements on LTE-based V2X Services p. 57
9 Improvements of Mission Critical (MC) p. 59
9.1 Enhancements to MCPTT p. 59
9.2 Enhancements to MC Data p. 60
9.3 Enhancements to MC Video p. 62
9.4 Other Mission Critical Enhancements p. 62
10 Features related to WLAN and unlicensed spectrum p. 64
10.1 WLAN direct discovery p. 64
10.2 Voice services over WLAN p. 65
10.3 Unlicensed Spectrum Offloading System p. 65
10.4 Enhancements to LTE operation in unlicensed spectrum p. 66
10.5 Other functionalities related to WLAN and unlicensed spectrum p. 67
11 Other new features p. 68
12 System enhancements p. 72
12.1 Control plane - user plane separation p. 72
12.1.1 Separation of CP and UP for Split Option 2 of NR p. 72
12.1.2 Management Enhancement for EPC Control and User Plane Separation (CUPS) p. 73
12.2 Quality of Experience (QoE) related Features p. 74
12.3 Security-related improvements p. 75
12.4 Virtual Reality (VR), TV, Codec and multimedia-related improvements p. 75
12.4.1 Test Methodologies for the Evaluation of Perceived Listening Quality in Immersive Audio Systems p. 75
12.4.2 Addition of HDR to TV Video Profiles p. 76
12.4.3 Virtual Reality Profiles for Streaming Media p. 76
12.4.4 FEC and ROHC Activation for GCSE over MBMS p. 78
12.4.5 Media Handling Aspects of 5G Conversational Services p. 78
12.5 Codec and multimedia-related improvements p. 79
12.5.1 Receive acoustic output test in the presence of background noise p. 79
12.5.2 Server and Network Assisted DASH for 3GPP Multimedia Services p. 79
12.5.3 SAND for MBMS p. 80
12.5.4 Framework for Live Uplink Streaming p. 81
12.5.5 Further video enhancements for LTE p. 82
12.5.6 Speech quality with ambient noise p. 82
12.6 Active Antenna System (AAS) p. 83
12.7 OAM improvements p. 85
12.8 Other enhancements p. 87
12.8.1 Simplified HS-SCCH for UMTS p. 87
12.8.2 Increased number of E-UTRAN data bearers p. 89
12.8.3 Increasing the number of EPS bearers p. 90
12.8.4 Enhancement of background data transfer p. 90
12.8.5 Enhanced VoLTE performance p. 90
12.8.6 DL interference mitigation for UMTS p. 91
12.8.7 Enhanced Calling Name Service p. 92
12.8.8 PS Data Off Phase 2 p. 93
13 LTE improvements p. 94
13.1 Further enhancements to Coordinated Multi-Point (CoMP) Operation for LTE p. 94
13.2 Enhancements for high capacity stationary wireless link and introduction of 1024 QAM for LTE DL p. 95
13.3 UE requirements for network-based CRS interference mitigation for LTE p. 96
13.4 Bluetooth®/WLAN measurement collection in LTE Minimization of Drive Tests (MDT) p. 97
13.5 UL data compression in LTE p. 98
13.6 UE Positioning Accuracy Enhancements for LTE p. 98
13.7 UE requirements for LTE DL 8Rx antenna ports p. 99
13.8 Shortened TTI and processing time for LTE p. 100
13.8.1 Short processing time for 1 ms TTI p. 100
13.8.2 Short TTI p. 101
13.9 Enhanced LTE Support for Aerial Vehicles p. 105
13.10 Enhancing LTE CA Utilization p. 106
14 OAM improvements p. 106
14.1 Other 5G System Charging aspects p. 106
14.1.1 Service Based Interface for 5G Charging p. 106
14.1.2 Charging for IMS over 5G System Architecture Phase 1 p. 107
14.1.3 SMS Charging in 5G System Architecture Phase 1 p. 107
14.2 Management and virtualization aspects of 5G networks and network slicing p. 108
15 Work Items for which no summary is needed p. 110
A Structure of 5GS Rel-15 3GPP work p. 112
B Process to get further information p. 114
$ Change history p. 118
