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Content for TR 36.855 Word version: 13.0.0

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2 References p. 6

3 Definitions, symbols and abbreviations p. 8

3.1 Definitions p. 8

3.2 Symbols p. 9

3.3 Abbreviations p. 9

4 General p. 10

4.1 Study item objective p. 10

5 Feasibility on measurement performance enhancement under Wide-band/Narrow-band p. 11

5.1 General p. 11

5.2 Scenarios p. 11

5.3 RSTD measurement performance for OTDOA p. 11

5.3.1 Simulation assumptions p. 11

5.3.2 Performance characterization p. 12

5.3.2.1 Link level simulation results p. 12

5.3.2.2 Summary p. 23

5.4 UE Rx-Tx time difference measurement performance for E-CID p. 23

5.4.1 Simulation assumptions p. 23

5.4.2 Performance characterization p. 24

5.4.2.1 Link level simulation results p. 24

5.4.2.2 Summary p. 24

6 Feasibility on downlink Tx diversity for PRS p. 25

6.1 General p. 25

6.2 Scenarios p. 25

6.3 Performance of possible PRS Tx diversity schemes p. 25

6.3.1 Simulation assumptions p. 25

6.3.2 RSTD Estimation with Diversity p. 27

6.3.3 Performance characterization p. 27

6.3.3.1 Link level simulation results p. 27

6.3.3.1.1 Comparison of TOA Estimation Schemes p. 29

6.3.3.2 Conclusions from interested companies p. 31

7 Feasibility on enhancement for OTDOA and E-CID with identical cell ID RRHs p. 31

7.1 Network Scenarios p. 31

7.2 Possible enhancements on OTDOA p. 31

7.2.1 Simulation assumptions p. 31

7.2.2 Performance characterization p. 33

7.2.3 Possible enhancement options p. 37

7.2.3.1 Possible enhancement options from interested companies p. 37

7.2.3.2 Summary and comparison of different solutions for OTDOA enhancements p. 39

7.3 Possible enhancements on E-CID p. 42

7.3.1 Simulation assumptions p. 42

7.3.2 Performance characterization p. 43

7.3.2.1 Simulation results for CoMP (with no CA) with non-collocated serving cells on the same frequency p. 43

7.3.3 Possible enhancement options p. 45

7.3.3.1 Summary and comparison of different solutions for E-CID enhancements p. 45

8 Feasibility study on enhancement for UE Rx-Tx measurement over multiple serving cells p. 48

8.1 Network Scenarios p. 48

8.2 Possible enhancement for UE Rx-Tx measurement with multiple serving cells p. 49

8.2.1 Possible enhancement options p. 49

8.2.2 Summary p. 50

9 Conclusions p. 51

$ Change History p. 52