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TR 23.703SA2
Study on
Architecture enhancements
to support Proximity-based Services (ProSe)

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V12.0.0 (Wzip)  2014/03  324 p.

WI Acronym:  ProSe-SA2TR
Rapporteur:  Mr. Zisimopoulos, HarisZTE Corporation

The present document is limited to the Stage 2 study and evaluation of possible 3GPP technical system solutions for architectural enhancements needed to support Proximity-based Services (ProSe) based on the relevant Stage 1 requirements as defined in TS 22.278 and TS 22.115.

short Table of Contents for  TR 23.703  Word version:   12.0.0

each title links to the equivalent title in the full ToC
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1  ScopeWord-p. 14
2  ReferencesWord-p. 14
3  Definitions and abbreviationsWord-p. 15
4  Assumptions and architectural requirementsWord-p. 16
5  Key IssuesWord-p. 22
6  SolutionsWord-p. 30
6.1  ProSe discoveryWord-p. 30
6.1.1  Solution D1: LTE based solution for direct discoveryWord-p. 30
6.1.2  Solution D2: Solution for direct discoveryWord-p. 37
6.1.3  Solution D3: Targeted ProSe discoveryWord-p. 40
6.1.4  Solution D4: EPC-level ProSe discoveryWord-p. 42
6.1.5  Solution D5: IMS based ProSe architectureWord-p. 50
6.1.6  Solution D6: Targeted Discovery based on application-defined ProSe Application ID and system provided ProSe UE IDWord-p. 62
6.1.7  Solution D7: Non targeted Discovery based on application-defined ProSe Application Identity and system provided ProSe UE IDWord-p. 65
6.1.8  Solution D8: Network based solution for ProSe discoveryWord-p. 67
6.1.9  Solution D9: Proximity service Architecture using PDCFWord-p. 71
6.1.10  Solution D10: ProSe System Architecture using ProSe ServerUpWord-p. 79
6.1.11  Solution D11: ProSe discovery using the architecture of solution 13Word-p. 83
6.1.12  Solution D12: Network assisted ProSe discoveryWord-p. 87
6.1.13  Solution D13: Network controlled ProSe discovery serviceWord-p. 89
6.1.14  Solution D14: EPC assisted direct discoveryWord-p. 101
6.1.15  Solution D15: EPC-level ProSe discoveryWord-p. 106
6.1.16  Solution D16 (consolidation of D3/D6/D7): ProSe Discovery through Communication (DtC)UpWord-p. 121
6.1.17  Solution D17: Targeted ProSe discoveryUpWord-p. 129
6.2  ProSe CommunicationWord-p. 130
6.2.1  Solution C1: ProSe communications in Group Owner modeWord-p. 130
6.2.2  Solution C2: Direct communications point to point with authorization based on application-defined Group ID and system provided ProSe IDWord-p. 134
6.2.3  Solution C3: Network independent LTE direct communication (one-to-one)UpWord-p. 139
6.2.4  Solution C4: Network-authorized LTE direct communication (one-to-one)Word-p. 143
6.2.5  Solution C5: ProSe communications in Ad-Hoc modeWord-p. 151
6.2.6  Solution C6: LTE direct communication (one-to-many)Word-p. 154
6.2.7  Solution C7: A hybrid mode for one-to-many communicationWord-p. 157
6.2.8  Solution C8: One to many communicationWord-p. 164
6.2.9  Solution C9: Authorization of direct communications One-to-Many based on application-defined ProSe application ID and system provided ProSe UE IDWord-p. 168
6.3  ProSe RelaysWord-p. 170
6.3.1  Solution R1: Relay enabling and configuration for Public SafetyWord-p. 170
6.3.2  Solution R2: UE-UE Relay using IP Routing and ForwardingWord-p. 172
6.3.3  Solution R3: UE-Network Relay using Layer 3 Routing based on EPS Bearer (lend me a EPS bearer)Word-p. 174
6.3.4  Solution R4: UE-to-UE Relay operating at the application layerWord-p. 176
6.3.5  Solution R5: Solution for Public Safety UE-to-UE RelaysWord-p. 180
6.3.6  Solution R6: ProSe Relay as v4/v6 IP router with application level gateway functionsUpWord-p. 182
6.3.7  Solution R7: GCSE architecture with UE-to-Network RelayWord-p. 186
6.3.8  Solution R8: Application layer based ProSe RelayWord-p. 191
6.3.9  Solution R9: Reuse of Architecture A1 from TR 36.806Word-p. 193
6.3.10  Solution R10: L2 ProSe UE-to-Network Relay with Bearer sharingWord-p. 198
6.3.11  Solution R11: ProSe UE-to-Network Relay as IP routerWord-p. 203
6.3.12  Solution R12: UE-to-Network relay with network authorizationWord-p. 208
6.3.13  Solution R13: ProSe Relay selectionWord-p. 212
6.4  ProSe IdentitiesWord-p. 213
6.4.1  Solution I1: Solution for ProSe Identifiers for Public Safety Mission Critical Applications using direct discoveryWord-p. 213
6.4.2  Solution I2: ProSe IdentitiesWord-p. 215
6.4.3  Solution I3: Retrieval of ProSe IdentityWord-p. 222
6.4.4  Solution I4: ProSe Identities for ProSe serviceWord-p. 226
6.4.5  Solution I5: Solution with ProSe UE Identifiers targeted towards Public Safety applicationsWord-p. 228
6.4.6  Solution I6: ProSe Application Identities allocated using application layer mechanismsWord-p. 229
6.4.7  Solution I7: Random and Temporary ProSe IdentityWord-p. 230
6.4.8  Solution I8: Application-defined ProSe Application ID and system provided ProSe UE IDWord-p. 234
6.4.9  Solution I9: Registration for ProSe services by using a 3GPP assigned ProSe IdentityWord-p. 238
6.5  EPC Support for WLAN Direct CommunicationsWord-p. 241
6.5.1  Solution W1: EPC support for WLAN Direct communicationUpWord-p. 241
6.5.2  Solution W2: ProSe assisted WLAN Direct communicationWord-p. 241
6.5.3  Solution W3: Network-assisted WLAN Direct communicationWord-p. 244
6.6  ProSe Configuration and capabilities handlingWord-p. 247
6.6.1  Solution P1: Configuration of ProSe feature support of network in UEWord-p. 247
6.6.2  Solution P2: HSS based configurationWord-p. 248
7  EvaluationWord-p. 250
8  ConclusionsWord-p. 255
A  Interactions with GCSE_LTE for Public SafetyWord-p. 259
B  Security Considerations for solution I1Word-p. 264
C  ProSe Identities Temporary AssumptionsWord-p. 265
D  Format of ProSe Identifier for Solution I5Word-p. 266
E  Functional Split for ProSeWord-p. 267
F  Procedures for allocation of ProSe Application Identities in the context of solution I6Word-p. 269
G  Taxonomy of direct discovery solutionsWord-p. 270
H  EPC support for WLAN direct discovery and communicationWord-p. 271
I  EPC-level ProSe discoveryWord-p. 274
J  ProSe direct communication one-to-many (decentralised mode)Word-p. 286
K  ProSe UE-to-Network RelaysWord-p. 298
L  ProSe direct discoveryWord-p. 306
M  Change historyWord-p. 324

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