TR 36.933
Study on Context Aware Service Delivery
in RAN for LTE

V19.0.0 (PDF) 2025/09 20 p.

V18.0.0 2024/03 20 p.

V17.0.0 2022/03 20 p.

V16.0.0 2020/06 20 p.

V15.0.0 2018/06 20 p.

V14.0.0 2017/03 20 p.

full Table of Contents for TR 36.933 Word version: 19.0.0

Introduction p. 4

Scope p. 5

References p. 5

Definitions, symbols and abbreviations p. 5

3.1	Definitions p. 5
3.2	Abbreviations p. 6

Definitions and problems description p. 6

4.1	Issue 1: Backhaul long latency p. 6
4.2	Issue 2: TCP E2E delay with throughput decreasing p. 6
4.3	Issue 3: Video transmission issue cases p. 6
4.4	Issue 4: UL Video transmission critical data discard p. 7

Solutions p. 7

5.1

General Principles p. 7

5.2

Solutions for issue 1 p. 7

5.2.1	Solution 1: UE assisted local cache solution p. 7
5.2.2	Conclusion for Issue 1 p. 9

5.3

Solutions for issue 2 p. 9

5.3.1	TCP Performance Enhancing Proxy (TCP PEP) p. 9
5.3.2	Network based Radio-Aware TCP p. 10
5.3.3	UE Based Radio-Aware TCP Solution p. 10
5.3.4	eNB generates TCP ACK on behalf of the UE p. 10
5.3.5	Conclusion for Issue 2 p. 11

5.4

Solutions for issue 3 p. 11

5.4.1

Solutions for case 1 p. 11

5.4.1.1	Solution 1: UE request a higher QoS profile p. 11
5.4.1.2	Solution 2: Video Context Aware Solution p. 11

5.4.2

Solutions for case 2 p. 12

5.4.2.1	Solution 1: PCC-based Solution p. 12
5.4.2.2	Solution 2: Solution of DASH optimisation p. 13
5.4.2.3	Solution 3: Solution of DASH optimisation via local breakout p. 14

5.4.3

Solutions for case 3 p. 15

5.4.3.1

Solution 1 p. 15

5.4.4

Conclusion for Issue 3 p. 16

5.5

Solutions for issue 4 p. 16

5.5.1	Solution 1: Dynamic adaptation of LTE radio resource allocation during the call p. 16
5.5.2	Solution 2: Static acceptance or rejection of adaptation of LTE radio resource allocation for the call p. 16

Video playout buffer aware scheduling p. 17

Change History p. 18