Content for TR 36.746 Word version: 15.1.1
2 References
3 Definitions, symbols and abbreviations
4 Scenarios and requirements
5 Technical support for LTE device to device, UE-to- Network relays for IoT and wearables
6 Evaluation results
7 Conclusions
A Evaluation methodology
$ Change History
2 References p. 5
3 Definitions, symbols and abbreviations p. 6
4 Scenarios and requirements p. 6
4.1 Assumptions p. 6
4.2 Requirements p. 7
4.2.1 Relaying solution requirements p. 7
4.2.1.1 Requirement 1 - Visibility and reachability p. 7
4.2.1.2 Requirement 2 - Traffic differentiation p. 7
4.2.1.3 Requirement 3 - Power consumption p. 7
4.2.1.4 Requirement 4 - Device complexity p. 7
4.2.1.5 Requirement 5 - Efficient signalling p. 7
4.2.1.6 Requirement 6 - Traffic types p. 8
4.2.1.7 Requirement 7 - Co-existence with Rel-12/13 Public Safety UEs p. 8
4.2.1.8 Requirement 8 - Service continuity p. 8
4.2.1.9 Requirement 9 - Data security p. 8
4.2.1.10 Requirement 10 - Common relay architecture p. 8
4.2.1.11 Requirement 11 - QoS support p. 8
4.3 Scenarios p. 8
5 Technical support for LTE device to device, UE-to- Network relays for IoT and wearables p. 10
5.1 Layer 2 evolved UE-to-Network relay solution p. 10
5.1.1 Architecture p. 10
5.1.2 Protocol enhancements p. 12
5.1.2.1 Discovery and connection establishment procedure p. 12
5.1.2.2 Paging for evolved ProSe Remote UE p. 12
5.1.2.3 System information reception for evolved ProSe Remote UE p. 15
5.1.2.4 Group mobility of evolved ProSe UE-to-Network Relay UE and evolved ProSe Remote UEs p. 16
5.1.2.4.1 Group handover command p. 16
5.1.2.4.2 Group handover response p. 17
5.1.2.4.3 Group handover in-network p. 17
5.1.2.4.4 Combined approaches p. 20
5.1.2.5 Path switch p. 20
5.1.2.5.1 Path switch scenarios p. 20
5.1.2.5.2 Solutions for Scenario 1 p. 21
5.1.2.5.3 Solutions for Scenario 2 p. 23
5.1.2.6 Access control p. 26
5.2 LTE sidelink enhancements p. 26
6 Evaluation results p. 33
6.1 Common Evaluation Assumptions p. 34
6.2 Discovery Analysis p. 34
6.2.1 Scenario 1 - Wearable Centric p. 34
6.2.2 Scenario 2 - IoT Centric p. 36
6.2.3 Observations on Discovery Evaluations p. 38
6.3 Communication Analysis p. 38
6.3.1 Scenario 1 - Wearable Centric p. 38
6.3.1.1 DL Direction, M = 2 p. 40
6.3.1.2 UL Direction, M = 2 p. 41
6.3.1.3 DL Direction, M = 8 p. 42
6.3.1.4 UL Direction, M = 8 p. 42
6.3.2 Scenario 2 - IoT Centric p. 43
6.3.2.1 DL Direction, N = 20 p. 45
6.3.2.2 UL Direction, N = 20 p. 46
6.3.2.3 DL Direction, N = 40 p. 47
6.3.2.4 UL Direction, N = 40 p. 47
6.3.3 Analysis of 1 PRB Bandwidth Limited UEs p. 48
6.3.4 Observations on Sidelink Communication Evaluations p. 50
7 Conclusions p. 51
A Evaluation methodology p. 52
A.1 Evaluation assumptions p. 52
$ Change History p. 55
