Tech-invite 3GPPspace IETFspace

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Content for TR 36.816 Word version: 11.2.0

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2 References p. 6

3 Definitions, symbols and abbreviations p. 7

3.1 Definitions p. 7

3.2 Symbols p. 7

3.3 Abbreviations p. 7

4 Scenarios p. 8

4.1 Coexistence interference scenarios p. 8

4.2 Usage scenarios p. 10

5 Potential solutions for interference avoidance p. 12

5.1 Introduction p. 12

5.1.1 Modes of interference avoidance p. 12

5.1.1.1 Uncoordinated mode p. 12

5.1.1.2 Coordinated within UE only p. 12

5.1.1.3 Coordinated within UE and with network p. 13

5.1.2 Potential solution directions p. 13

5.1.2.1 Move LTE Signal away from ISM Band p. 13

5.1.2.2 Move ISM Radio Signal away from LTE Frequency Band p. 14

5.1.2.3 Time Division Multiplexing (TDM) p. 14

5.1.2.4 LTE Power Control (LTE PC) p. 15

5.1.2.5 ISM Power Control (ISM PC) p. 15

5.2 Description of interference avoidance solutions p. 16

5.2.1 LTE network-controlled UE-assisted solutions p. 16

5.2.1.1A General p. 16

5.2.1.1 Frequency Division Multiplexing (FDM) solution p. 16

5.2.1.2 TDM solutions p. 17

5.2.1.2.1 DRX based solution p. 17

5.2.1.2.2 HARQ process reservation based solution p. 18

5.2.1.2.3 Uplink scheduling restriction based solution p. 20

5.2.1.3 LTE power control solutions p. 20

5.2.2 UE autonomous solutions p. 20

5.2.2.1 TDM solutions p. 20

5.2.2.1.1 LTE denials for infrequent short-term events p. 20

5.2.2.1.2 LTE denials for ISM data packets p. 21

5.2.2.1.3 ISM denials for LTE important reception p. 21

5.3 Applicability of interference avoidance solutions p. 21

6 Conclusion p. 22

A Interference analysis on in-device coexistence between LTE and ISM p. 22

A.1 Assumptions p. 23

A.1.1 Filtering assumptions p. 23

A.1.2 Antenna isolation p. 24

A.1.3 Interference mechanisms p. 24

A.1.4 Signal Bandwidth p. 24

A.1.5 Transmitter output power p. 25

A.1.6 Performance metrics p. 25

A.2 Results p. 25

A.2.1 Analysis 1 Results p. 25

A.2.2 Analysis 2 Results p. 28

A.2.3 Analysis 3 Results p. 29

A.2.4 Analysis 4 Results p. 30

B Timeline analysis of in-device coexistence between LTE and Bluetooth p. 34

B.1 Assumptions p. 34

B.1.1 Bluetooth p. 34

B.1.2 LTE p. 35

B.2 Results p. 35

B.2.1A Coexistence between LTE and BT eSCO EV3 without TDM solutions for BT master p. 35

B.2.1 Void

B.2.2 Coexistence between LTE and BT eSCO EV3 with TDM solutions for BT master p. 38

B.2.3 Coexistence between LTE and BT eSCO EV3 with TDM solutions for BT slave p. 41

$ Change history p. 44