WAP
TM
WSP
WAP-230-WSP
Approved Version 5-July-2001
Wireless Application Protocol
Wireless Session Protocol Specification
A list of errata and updates to this document is available from the WAP Forum™ Web site, http://www.wapforum.org/,
in the form of SIN documents, which are subject to revision or removal without notice.
© Copyright Wireless Application Protocol Forum, Ltd. 2001
All rights reserved.
WAP-230-WSP-20010705-a, Approved Version 5 July 2001
Page
2(131)
© Copyright Wireless Application Protocol Forum, Ltd. 2001
All rights reserved.
© 2001, Wireless Application Forum, Ltd. All rights reserved.
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Document History
WAP-203-WSP-20000504-a Approved
WAP-203_001-WSP-20000620-a SIN
WAP-203_003-WSP-20001218-a SIN
WAP-230-WSP-20010118-p Proposed
WAP-230_002-WSP-20010702-a SCD
WAP-230-WSP-20010705-p Proposed
WAP-230-WSP-20010705-a, Approved Version 5 July 2001
Page
3(131)
© Copyright Wireless Application Protocol Forum, Ltd. 2001
All rights reserved.
Contents
1 SCOPE...........................................................................................................................................................................6
2 DOCUMENT STATUS................................................................................................................................................7
2.1 C
OPYRIGHT
N
OTICE
.................................................................................................................................................7
2.2 E
RRATA
...................................................................................................................................................................7
2.3 C
OMMENTS
..............................................................................................................................................................7
3 REFERENCES .............................................................................................................................................................8
3.1 N
ORMATIVE
R
EFERENCES
.......................................................................................................................................8
3.2 I
NFORMATIVE
R
EFERENCES
.....................................................................................................................................9
4 DEFINITIONS AND ABBREVIATIONS................................................................................................................10
4.1 D
EFINITIONS
..........................................................................................................................................................10
4.2 A
BBREVIATIONS
....................................................................................................................................................11
4.3 D
OCUMENTATION
C
ONVENTIONS
..........................................................................................................................12
5 WSP ARCHITECTURAL OVERVIEW..................................................................................................................13
5.1 R
EFERENCE
M
ODEL
...............................................................................................................................................13
5.2 WSP F
EATURES
....................................................................................................................................................14
5.2.1 Basic Functionality.......................................................................................................................................14
5.2.2 Extended Functionality.................................................................................................................................15
6 WSP ELEMENTS OF LAYER-TO-LAYER COMMUNICATION .....................................................................16
6.1 N
OTATIONS
U
SED
..................................................................................................................................................16
6.1.1 Definition of Service Primitives and Parameters..........................................................................................16
6.1.2 Time Sequence Charts ..................................................................................................................................16
6.1.3 Primitives Types............................................................................................................................................17
6.1.4 Primitive Parameter Tables..........................................................................................................................17
6.2 S
ERVICE
P
ARAMETER
T
YPES
.................................................................................................................................18
6.2.1 Address ......................................................................................................................................................... 18
6.2.2 Body and Headers ........................................................................................................................................ 18
6.2.3 Capabilities...................................................................................................................................................18
6.2.4 Push Identifier (Push Id)...............................................................................................................................18
6.2.5 Reason ..........................................................................................................................................................18
6.2.6 Request URI..................................................................................................................................................19
6.2.7 Status ............................................................................................................................................................19
6.2.8 Transaction Identifier (Transaction Id)........................................................................................................ 19
6.3 C
ONNECTION
-
MODE
S
ESSION
S
ERVICE
..................................................................................................................19
6.3.1 Overview.......................................................................................................................................................19
6.3.2 Capabilities...................................................................................................................................................20
6.3.3 Service Primitives.........................................................................................................................................23
6.3.4 Constraints on Using the Service Primitives ................................................................................................36
6.3.5 Error Handling.............................................................................................................................................40
6.4 C
ONNECTIONLESS
S
ESSION
S
ERVICE
.....................................................................................................................40
6.4.1 Overview.......................................................................................................................................................40
6.4.2 Service Primitives.........................................................................................................................................40
6.4.3 Constraints on Using the Service Primitives ................................................................................................42
6.4.4 Error Handling.............................................................................................................................................43
7 WSP PROTOCOL OPERATIONS...........................................................................................................................44
7.1 C
ONNECTION
-M
ODE
WSP..................................................................................................................................... 44
WAP-230-WSP-20010705-a, Approved Version 5 July 2001
Page
4(131)
© Copyright Wireless Application Protocol Forum, Ltd. 2001
All rights reserved.
7.1.1 Utilisation of WTP........................................................................................................................................44
7.1.2 Protocol Description ....................................................................................................................................44
7.1.3 Protocol Parameters.....................................................................................................................................49
7.1.4 Variables.......................................................................................................................................................49
7.1.5 Event Processing ..........................................................................................................................................50
7.1.6 State Tables...................................................................................................................................................51
7.2 C
ONNECTIONLESS
WSP......................................................................................................................................... 66
8 WSP DATA UNIT STRUCTURE AND ENCODING.............................................................................................67
8.1 D
ATA
F
ORMATS
.....................................................................................................................................................67
8.1.1 Primitive Data Types....................................................................................................................................67
8.1.2 Variable Length Unsigned Integers..............................................................................................................67
8.2 P
ROTOCOL
D
ATA
U
NIT
S
TRUCTURE
......................................................................................................................68
8.2.1 PDU Common Fields....................................................................................................................................68
8.2.2 Session Management Facility....................................................................................................................... 69
8.2.3 Method Invocation Facility...........................................................................................................................71
8.2.4 Push and Confirmed Push Facilities ............................................................................................................75
8.2.5 Session Resume Facility................................................................................................................................75
8.3 C
APABILITY
E
NCODING
.........................................................................................................................................76
8.3.1 Capability Structure......................................................................................................................................76
8.3.2 Capability Definitions...................................................................................................................................77
8.3.3 Capability Defaults.......................................................................................................................................81
8.4 H
EADER
E
NCODING
...............................................................................................................................................81
8.4.1 General......................................................................................................................................................... 81
8.4.2 Header syntax...............................................................................................................................................83
8.4.3 Textual Header Syntax.................................................................................................................................. 98
8.4.4 End-to-end and Hop-by-hop Headers ..........................................................................................................99
8.5 M
ULTIPART
D
ATA
.................................................................................................................................................99
8.5.1 Application/vnd.wap.multipart Format ........................................................................................................99
8.5.2 Multipart Header.......................................................................................................................................... 99
8.5.3 Multipart Entry...........................................................................................................................................100
APPENDIX A ASSIGNED NUMBERS..........................................................................................................................101
APPENDIX B HEADER ENCODING EXAMPLES ....................................................................................................112
B.1 H
EADER VALUES
.................................................................................................................................................112
B.1.1 Encoding of primitive value........................................................................................................................112
B.1.2 Encoding of structured value......................................................................................................................112
B.1.3 Encoding of well-known list value..............................................................................................................112
B.1.4 Encoding of date value ............................................................................................................................... 112
B.1.5 Encoding of Content range.........................................................................................................................113
B.1.6 Encoding of a new unassigned token..........................................................................................................113
B.1.7 Encoding of a new unassigned header field name......................................................................................113
B.1.8 Encoding of a new unassigned list-valued header......................................................................................113
B.2 S
HIFT HEADER CODE PAGES
.................................................................................................................................113
B.2.1 Shift sequence .............................................................................................................................................113
B.2.2 Short cut......................................................................................................................................................113
APPENDIX C IMPLEMENTATION NOTES ..............................................................................................................114
C.1 C
ONFIRMED
P
USH AND
D
ELAYED
A
CKNOWLEDGEMENTS
...................................................................................114
C.2 H
ANDLING OF
R
ACE
C
ONDITIONS
........................................................................................................................114
C.3 O
PTIMISING
S
ESSION
D
ISCONNECTION AND
S
USPENSION
.....................................................................................115
C.4 D
ECODING THE
H
EADER
E
NCODINGS
..................................................................................................................115
C.5 A
DDING
W
ELL
-
KNOWN
P
ARAMETERS AND
T
OKENS
............................................................................................115
C.6 U
SE OF
C
USTOM
H
EADER
F
IELDS
........................................................................................................................115
WAP-230-WSP-20010705-a, Approved Version 5 July 2001
Page
5(131)
© Copyright Wireless Application Protocol Forum, Ltd. 2001
All rights reserved.
APPENDIX D STATIC CONFORMANCE REQUIREMENT ...................................................................................117
D.1 C
LIENT
/S
ERVER
M
ODE
........................................................................................................................................117
D.2 C
ONNECTION
-O
RIENTED
C
LIENT
.........................................................................................................................118
D.3 C
ONNECTIONLESS
C
LIENT
...................................................................................................................................123
D.4 C
ONNECTION
-O
RIENTED
S
ERVER
........................................................................................................................125
D.5 C
ONNECTIONLESS
S
ERVER
..................................................................................................................................129
APPENDIX E HISTORY AND CONTACT .................................................................................................................. 131
