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Content for TR 37.868 Word version: 11.0.0

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2 References p. 6

3 Definitions, symbols and abbreviations p. 6

3.1 Definitions p. 6

3.2 Symbols p. 7

3.3 Abbreviations p. 7

4 Example use cases p. 7

4.1 Metering p. 7

4.2 Road Security p. 7

4.3 Consumer electronic and devices p. 8

5 Description of envisioned RAN Improvements for Machine Type Communication p. 8

5.1 RAN overload control p. 8

5.1.1 Access Class Barring schemes p. 8

5.1.1.1 UE individual Access Class Barring Scaling p. 8

5.1.1.2 Extended Access Barring p. 9

5.1.2 Separate RACH resources for MTC p. 9

5.1.2.1 Solution for LTE p. 9

5.1.2.2 Solution for UMTS p. 9

5.1.3 Dynamic allocation of RACH resources p. 9

5.1.4 MTC Specific Backoff scheme p. 9

5.1.5 Slotted access p. 9

5.1.6 Pull based scheme p. 9

5.2 [ Other improvement areas ] p. 10

5.2.1 Solution for LTE p. 10

5.2.2 Solution for UMTS p. 10

6 Simulation assumptions and results p. 10

6.1 Traffic model p. 10

6.1.1 Time limited Beta distribution p. 10

6.2 Methodology p. 11

6.2.1 Simulator methodology p. 11

6.2.1.1 Protocol level simulator methodology p. 11

6.2.1.2 Impacts on/from H2H traffic p. 11

6.2.1.3 Statistics collection p. 11

6.2.2 Simulation assumptions p. 11

6.2.2.1 Simulation parameters for RACH capacity evaluation p. 11

6.2.2.2 Handling of collision p. 13

6.2.2.3 Processing latency p. 13

6.3 Output for analysis p. 13

6.3.1 Measures for RACH capacity evaluation p. 13

6.4 Simulation results p. 14

6.4.1 Simulation results for RACH capacity p. 14

6.4.1.1 LTE FDD p. 14

6.4.1.2 LTE TDD p. 15

6.4.1.3 UMTS FDD p. 15

6.4.1.4 UMTS 1.28Mcps TDD p. 16

7 Conclusion p. 16

A Traffic model for Machine-Type Communications p. 17

B Load Analysis for MTC p. 18

B.1 Example RACH Load Analysis for Smart Electric Metering Application p. 18

B.2 Example RACH Load Analysis for Fleet Management Application p. 21

B.3 Example RACH Load Analysis for Earthquake Monitoring Application p. 22

B.4 Preliminary RACH Load Analysis for HSPA and LTE p. 23

$ Change history p. 28