TR 25.853
Delay budget within the access stratum

V4.0.0 (Wzip) 2001/04 23 p.

V3.1.0 2001/04 23 p.

full Table of Contents for TR 25.853 Word version: 4.0.0

Scope p. 5

References p. 5

Definitions, symbols and abbreviations p. 6

External requirements on UTRAN p. 7

4.1

General p. 7

4.2

Performance Expectations p. 9

4.2.1

Real Time Services p. 9

UTRAN Delay Components p. 9

5.1

General p. 9

5.2

UTRAN Network Components p. 10

5.2.1	Macro-diversity Combining Delay p. 10
5.2.2	Interleaving for Convolutional and Turbo Coding (U3) p. 10
5.2.3	MAC Scheduling Delay (U4) p. 10
5.2.4	Re-transmission Delay (U5) p. 11
5.2.5	Radio Interface Propagation Delay (U6) p. 11
5.2.6	Processing Delays (U2) p. 11

5.3

Transport Network p. 12

5.3.1	General p. 12
5.3.2	Multiplexing and De-multiplexing Delay (TN1) p. 14
5.3.3	Play-out Buffer Delay (U1) p. 15
5.3.4	Transmission Delay p. 15
5.3.5	Media Delay (TN2) p. 15
5.3.6	Switching/and Cross-Connecting Delay (TN3) p. 16

UTRAN Delay Estimation p. 16

6.1	UTRAN Reference Configuration p. 16
6.2	Network Assumptions p. 17
6.3	Traffic Assumptions p. 17
6.4	Delay Budget Evaluation p. 18

p. 21

A.1

Non Access Stratum Delay Components p. 21

A.1.1	Transcoding for Speech Services p. 21
A.1.2	Core Network p. 21
A.1.3	User Equipment p. 21

Open Issues relating to this specification p. 22

Change history p. 23