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Content for  TS 48.018  Word version:  16.0.0

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1  ScopeWord‑p. 15

The present document specifies or references procedures used on the Base Station System (BSS) to Serving GPRS Support Node (SGSN) interface for control of GSM packet data services.
The functional split between BSS and SGSN is defined in TS 23.060 which states that a BSS is responsible for local radio resource allocation. The required procedures between BSS and SGSN are defined in detail in the present document.

2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
TR 21.905: "Vocabulary for 3GPP Specifications".
[2]  (void).
[3]  (void).
[4]  (void).
[5]  (void).
[6]  (void).
TS 23.060: "General Packet Radio Service (GPRS); Service Description; Stage 2".
[8]  (void).
[9]  (void).
TS 43.064: "Overall description of the GPRS radio interface; Stage 2".
TS 24.008: "Mobile radio interface Layer 3 specification; Core network protocols; Stage 3".
TS 44.064: "Mobile Station - Serving GPRS Support Node (MS-SGSN) Logical Link Control (LLC) Layer Specification".
[13]  (void).
TS 48.008: "Mobile Switching Centre - Base Station System (MSC-BSS) interface; Layer 3 specification".
[15]  (void).
TS 48.016: "General Packet Radio Service (GPRS); Base Station System (BSS) - Serving GPRS Support Node (SGSN) interface; Network Service"
TS 29.018: "General Packet Radio Service (GPRS); Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR); Gs Interface Layer 3 specification".
TS 32.008: "Subscriber and equipment trace".
→ to date, withdrawn by 3GPP
ITU-T Recommendation X.200 (White Book): "Information technology - Open Systems Interconnection - Basic Reference Model: The basic model".
TS 23.107: "Quality of Service (QoS) concept and architecture".
[21]  (void).
TS 44.060: "General Packet Radio Service (GPRS); Mobile Station (MS) - Base Station System (BSS) interface; Radio Link Control/Medium Access Control (RLC/MAC) protocol".
TS 43.059: "Functional Stage 2 Description of Location Services (LCS) in GERAN".
TS 49.031: "Location Services (LCS); Base Station System Application Part LCS Extension (BSSAP-LE)".
TS 44.018: "Mobile radio interface layer 3 specification; Radio Resource Control Protocol".
TR 44.901: "External Network Assisted Cell Change (NACC)".
TS 23.236: "Intra-domain connection of Radio Access Network (RAN) nodes to multiple Core Network (CN) nodes".
GSM TS 12.20: "Base Station System (BSS) Management Information".
TS 43.246: "Multimedia Broadcast Multicast Service (MBMS) in the GERAN Stage 2".
TS 26.346: "Multimedia Broadcast Multicast Service Protocols and Codecs".
TS 29.061: "Interworking between the Public Land Mobile Network (PLMN) supporting packet based services and Packet Data Networks (PDN)".
TS 23.246: "Multimedia Broadcast/Multicast Service (MBMS) Architecture and Functional Description".
RFC 3588:  "Diameter Base Protocol".
TS 43.129: "Packet-switched handover for GERAN A/Gb mode; Stage 2".
TS 36.331: "Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification".
TS 36.413: "Evolved Universal Terrestrial Radio Access (E-UTRA); S1 Application Protocol (S1AP)".
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage3".
TS 25.413: "UTRAN Iu interface Radio Access Network Application Part (RANAP) signalling".
TS 22.220: "Service Requirements for Home NodeBs and Home eNodeBs".
TS 23.003: "Numbering, addressing and identification".
TS 29.060: "GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface".
TS 25.331: "Technical Specification Group Radio Access Network; Radio Resource Control (RRC)".
TS 23.251: "Network sharing - Architecture and functional description".
TS 45.008: "Radio subsystem link control".
TS 36.300: "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Overall description; Stage 2".
TS 29.281: "General Packet Radio System (GPRS) Tunnelling Protocol User Plane (GTPv1-U)"
3GPP2 C.S0024-B: "cdma2000 High Rate Packet Data Air Interface Specification".
TS 45.002: "Technical Specification Group GSM/EDGE Radio Access Network; Multiplexing and multiple access on the radio path"
TS 24.301: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".

3  AbbreviationsWord‑p. 17

For the purposes of the present document, the abbreviations given in TR 21.905 and in TS 48.016 and the following apply:
Aggregate BSS QoS Profile
Current Bucket Level
Cell Change Notification
Circuit switched
Closed Subscriber Group
Dedicated Core Network
Dedicated Core Network ID
evolved Access Network
Extended Discontinuous Reception
enhanced High Rate Packet Data
Evolved UTRA
Evolved UTRAN
GateWay Core Network
Location Services
Multimedia Broadcast Multicast Service
Mobility Management Entity
Multi Operator Core Network
Network Assisted Cell Change
Network Resource Identifier
Network Service Entity
Packet Flow Context
Packet Flow Identifier
Packet Flow Management
Packet Flow Timer
Packet switched
Radio Access Network
RAN Information Management
Radio Resource LCS Protocol
RIM Sequence Number
Service Identification for improved Radio Utilization for GERAN
Self-Organizing Networks
Subscriber Profile ID for RAT/Frequency priority
Tracking Area Identity
Temporary Mobile Group Identity
Tunneling of Messages
RAN Information Management

3.1  Vocabulary |R11|

  • Coverage Class: See definition in TS 43.064.
  • CS/PS coordination enhancements: refers to an improved CS/PS domain registration coordination function when rerouting is performed in a MOCN or in a GWCN configuration for network sharing. The improved CS/PS domain registration coordination is achieved by extended signalling between the BSS and the CN nodes (see TS 23.251).
  • Dedicated Core Networks: Dedicated Core Networks is an optional feature that enables an operator to deploy multiple dedicated core networks within a PLMN where each dedicated core network node may be dedicated to serve specific type (s) of subscribers. The selection of the Dedicated Core Network is based on "UE Usage Type" obtained from the HSS/HLR and operator specific configuration in the SGSN (see TS 23.401).
  • EC operation: See definition in TS 43.064.
  • Extended DRX (eDRX): see TR 21.905.
  • MS assisted Dedicated Core Network selection: MS assisted Dedicated Core Network selection is an optional feature wherein the selection of the Dedicated Core Network to which a BSS routes LLC PDUs, in addition to the selected PLMN, is based on the "DCN-ID" value provided by the MS (see TS 23.401).
  • Network sharing: network sharing is an optional feature that allows different core network operators to connect to the same shared radio access network in a MOCN configuration, and to the same shared radio access network and core network nodes in a GWCN configuration (see TS 23.251). When network sharing is in use within a given cell, the network broadcasts within system information the PLMN identities of the PLMNs sharing the cell. A mobile station supporting network sharing uses this information for its PLMN (re)selection processes and indicates the selected PLMN to the BSS.
  • Null-NRI: Has the same format as the NRI and is used to identify the group of SGSNs that belong to a DCN within a PLMN. A 'null-NRI' indicates to a radio node (BSC/RNC) that the NAS Node Selection Function shall be used for selecting a CN node to receive a message (see TS 23.236).
  • SGSN Group ID: A SGSN Group ID identifies a Dedicated Core Network (DCN) within the PLMN, i.e. the group of SGSNs that belong to a DCN within a PLMN, see TS 23.401.

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