Content for TS 36.304 Word version: 18.2.0
1 Scope
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Symbols
3.3 Abbreviations
...
...
1 Scope p. 6
The present document specifies the Access Stratum (AS) part of the Idle Mode procedures applicable to a UE. The non-access stratum (NAS) part of Idle mode procedures and processes is specified in TS 23.122.
The present document specifies the model for the functional division between the NAS and AS in a UE.
The present document applies to all UEs that support at least E-UTRA, including multi-RAT UEs as described in 3GPP specifications, in the following cases:
- When the UE is camped on an E-UTRA cell;
- When the UE is searching for a cell to camp on;
2 References p. 6
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.
[1]
[2]
TS 36.300: "E-UTRA and E-UTRAN Overall Description; Stage 2".
[3]
TS 36.331: "E-UTRA; Radio Resource Control (RRC) - Protocol Specification".
[4]
TS 22.011: "Service accessibility".
[5]
TS 23.122: "NAS functions related to Mobile Station (MS) in idle mode".
[6]
TS 36.213: "E-UTRA; Physical layer procedures".
[7]
TS 36.214: "E-UTRA; Physical layer; Measurements".
[8]
TS 25.304: "User Equipment (UE) procedures in idle mode and procedures for cell reselection in connected mode"
[9]
TS 43.022: "Functions related to Mobile Station in idle mode and group receive mode".
[10]
TS 36.133: "Requirements for Support of Radio Resource Management".
[11] Void
[12] Void
[13] Void
[14] Void
[15] Void
[16]
TS 24.301: "Non-Access-Stratum (NAS) protocol for Evolved Packet System (EPS); Stage 3"
[17]
3GPP2 C.S0024-C v2.0: "cdma2000 High Rate Packet Data Air Interface Specification".
[18]
3GPP2 C.S0005-F v1.0: "Upper Layer (Layer 3) Signalling Standard for cdma2000 Spread Spectrum Systems".
[19]
TS 25.304: "User Equipment (UE) procedures in idle mode and procedures for cell reselection in connected mode".
[20]
TS 24.008: "Mobile Radio Interface Layer 3 specification; Core Network Protocols; Stage 3"
[21]
TS 37.320: "Universal Terrestrial Radio Access (UTRA) and Evolved Universal Terrestrial Radio Access (E-UTRA); Radio measurement collection for Minimization of Drive Tests (MDT); Overall description; Stage 2".
[22]
TS 26.346: "Multimedia Broadcast/Multicast Service (MBMS); Protocols and codecs".
[23]
TS 23.401: "Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[24]
TS 23.682: "Architecture enhancements to facilitate communications with packet data networks and applications".
[25]
TS 23.402: "Architecture enhancements for non-3GPP accesses".
[26]
IEEE 802.11, Part 11: "Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications, IEEE Std.".
[27]
Wi-Fi Alliance Technical Committee, Hotspot 2.0 Technical Task Group: "Hotspot 2.0 (Release 2) Technical Specification".
[28]
TS 24.302: "Access to the 3GPP Evolved Packet Core (EPC) via non-3GPP access networks".
[29]
TS 23.303: "Proximity-based services (ProSe); Stage 2".
[30]
TS 36.321: "E-UTRA; Medium Access Control (MAC) protocol specification".
[31]
TS 24.105: "Application specific Congestion control for Data Communication (ACDC) Management Object (MO)".
[32]
TS 31.102: "Characteristics of the Universal Subscriber Identity Module (USIM) application".
[33]
TS 36.101: "Evolved Universal Terrestrial Radio Access (E-UTRA); User Equipment (UE) radio transmission and reception".
[34] Void
[35]
TS 23.003: "Numbering, addressing and identification".
[36]
TS 23.285: "Technical Specification Group Services and System Aspects; Architecture enhancements for V2X services".
[37]
TS 38.331: "NR; Radio Resource Control (RRC); Protocol specification".
[38]
TS 38.304: "New Generation Radio Access Network; User Equipment (UE) procedures in Idle mode and RRC Inactive state".
[39]
TS 23.501: "System Architecture for the 5G System; Stage 2".
[40]
TS 23.287: "Architecture enhancements for 5G System (5GS) to support Vehicle-to-Everything (V2X) services".
[41]
TS 22.261: "Service requirements for the 5G system".
[42]
TS 38.300: "NR; NR and NG-RAN Overall Description; Stage 2".
3 Definitions and abbreviations p. 8
3.1 Definitions p. 8
For the purposes of the present document, the following terms and definitions apply:
Accepted IMSI Offset value:
An offset value allocated by core network used for calculating the Alternative IMSI value as specified in TS 23.401.
Acceptable Cell:
A cell that satisfies certain conditions as specified in 4.3. A UE can always attempt emergency calls on an acceptable cell, but restriction as in 5.3.3 apply.
Alternative cell reselection priority:
Cell reselection priority broadcast in the system information via altCellReselectionPriority and altCellReselectionSubPriority.
Alternative IMSI value:
A temporary substitute IMSI value used for deriving the paging occasion for Multi-USIM UE to avoid paging occasion collision as specified in TS 23.401.
Available PLMN(s):
One or more PLMN(s) for which the UE has found at least one cell and read its PLMN identity(ies).
Barred Cell:
A cell a UE is not allowed to camp on.
Camped on a cell:
UE has completed the cell selection/reselection process and has chosen a cell. The UE monitors system information and (in most cases) paging information.
Camped on any cell:
UE is in idle mode and has completed the cell selection/reselection process and has chosen a cell irrespective of PLMN identity.
Closed Subscriber Group (CSG):
A Closed Subscriber Group identifies subscribers of an operator who are permitted to access one or more cells of the PLMN but which have restricted access (CSG cells).
CN type:
The type of core network connectivity supported by an E-UTRA cell, either EPC or 5GC.
Commercial Mobile Alert System:
Public Warning System that delivers Warning Notifications provided by Warning Notification Providers to CMAS capable UEs.
CSG cell:
A cell broadcasting a CSG indication that is set to TRUE and a specific CSG identity.
CSG identity:
An identifier broadcast by a CSG or hybrid cell/cells and used by the UE to facilitate access for authorised members of the associated Closed Subscriber Group.
CSG member cell:
a cell broadcasting the identity of the selected PLMN, registered PLMN or equivalent PLMN and for which the Permitted CSG list of the UE includes an entry comprising cell's CSG ID and the respective PLMN identity.
DRX cycle:
Individual time interval between monitoring Paging Occasion for a specific UE.
Earth fixed cell:
An NTN cell fixed with respect to a certain geographic area on the earth. This can be provisioned by beam covering one geographic area (e.g., the case of GSO satellites generating without steerable beams).
Earth moving cell:
An NTN cell moving on the ground. This can be provisioned by beam(s) whose coverage area slides over the Earth surface (e.g., the case of NGSO satellites generating fixed or non-steerable beams).
eDRX cycle:
Time interval between the first Paging Occasions occurring after successive extended DRX periods.
eCall Only Mode:
A UE configuration option that allows the UE to attach at EPS and register in IMS to perform only eCall Over IMS, and a non-emergency IMS call for test and/or terminal reconfiguration services.
EHPLMN:
Any of the PLMN entries contained in the Equivalent HPLMN list TS 23.122.
Equivalent PLMN list:
List of PLMNs considered as equivalent by the UE for cell selection, cell reselection, and handover according to the information provided by the NAS.
EU-Alert:
Public Warning System that delivers Warning Notifications provided by Warning Notification Providers using the same AS mechanisms as defined for CMAS.
Home PLMN:
A PLMN where the Mobile Country Code (MCC) and Mobile Network Code (MNC) of the PLMN identity are the same as the MCC and MNC of the IMSI.
HNB Name:
The Home eNodeB Name is a broadcast string in free text format that provides a human readable name for the Home eNodeB CSG identity and any broadcasted PLMN identity.
HSDN cell:
A cell that has higher priority than other cells for cell reselection for HSDN capable UE in a High-mobility state.
Hybrid cell:
A cell broadcasting a CSG Indicator that is set to FALSE and a specific CSG identity.
Hyper SFN:
Index broadcast in System Information that increments at every SFN wrap around (i.e every 10.24s).
Korean Public Alert System (KPAS):
Public Warning System that delivers Warning Notifications provided by Warning Notification Providers using the same AS mechanisms as defined for CMAS.
Location Registration (LR):
UE registers its presence in a registration area, for instance regularly or when entering a new tracking area.
MBMS-dedicated cell:
cell dedicated to MBMS transmission.
MBMS/Unicast-mixed cell:
cell supporting both unicast and MBMS transmissions.
FeMBMS/Unicast-mixed cell:
cell supporting MBMS transmission and unicast transmission as SCell.
NB-IoT:
NB-IoT allows access to network services via E-UTRA with a channel bandwidth limited to 200 kHz.
Non-Terrestrial Network:
An E-UTRAN consisting of eNBs, which provide non-terrestrial LTE access to UEs by means of an NTN payload embarked on a space-borne NTN vehicle and an NTN Gateway.
NR sidelink communication:
AS functionality enabling at least V2X Communication as defined in TS 23.287, between two or more nearby UEs, using NR technology but not traversing any network node.
NR mobile-IAB cell:
An NR cell as defined in TS 38.300.
Paging Time Window:
The period configured for a UE in extended DRX, during which the UE monitors Paging Occasions following DRX cycle.
Permitted CSG list:
A list provided by NAS containing all the CSG identities and their associated PLMN IDs of the CSGs to which the subscriber belongs.
Power saving mode:
Mode allowing the UE to reduce its power consumption, as defined in TS 24.301, TS 23.401, TS 23.682.
Process:
A local action in the UE invoked by a RRC procedure or an Idle Mode or RRC_INACTIVE state procedure.
Quasi-Earth fixed cell:
An NTN cell fixed with respect to a certain geographic area on the earth during a certain time duration. This can be provisioned by beam(s) covering one geographic area for a limited period and a different geographic area during another period (e.g., the case of NGSO satellites generating steerable beams).
Radio Access Technology:
Type of technology used for radio access, for instance E-UTRA, UTRA, GSM, CDMA2000 1xEV-DO (HRPD) or CDMA2000 1x (1xRTT).
Registered PLMN:
This is the PLMN on which certain Location Registration outcomes have occurred TS 23.122.
Registration Area:
(NAS) registration area is an area in which the UE may roam without a need to perform location registration, which is a NAS procedure.
Reserved Cell:
A cell on which camping is not allowed, except for particular UEs, if so indicated in the system information.
Restricted Cell:
A cell on which camping is allowed, but access attempts are disallowed for UEs whose access classes are indicated as barred.
Selected PLMN:
This is the PLMN that has been selected by the NAS, either manually or automatically.
Serving cell:
The cell on which the UE is camped.
Sidelink:
UE to UE interface for sidelink communication, V2X sidelink communication and sidelink discovery. The Sidelink corresponds to the PC5 interface as defined in TS 23.303.
Sidelink communication:
AS functionality enabling ProSe Direct Communication as defined in TS 23.303, between two or more nearby UEs, using E-UTRA technology but not traversing any network node. The terminology "sidelink communication" without "V2X" prefix only concerns PS unless specifically stated otherwise.
Sidelink discovery:
AS functionality enabling ProSe Direct Discovery as defined in TS 23.303, using E-UTRA technology but not traversing any network node.
Strongest cell:
The cell on a particular carrier that is considered strongest according to the layer 1 cell search procedure TS 36.213, TS 36.214.
Suitable Cell:
This is a cell on which an UE may camp. For a E-UTRA cell, the criteria are defined in clause 4.3, for a UTRA cell in TS 25.304, for a GSM cell in TS 43.022, and for a NR cell in TS 38.304.
V2X sidelink communication:
AS functionality enabling V2X Communication as defined in TS 23.285, between nearby UEs, using E-UTRA technology but not traversing any network node.
3.2 Symbols p. 10
For the purposes of the present document, the following symbols apply:
3.3 Abbreviations p. 10
For the purposes of the present document, the following abbreviations apply:
1xRTT
CDMA2000 1x Radio Transmission Technology
AS
Access Stratum
AC
Access Class (of the USIM)
ACDC
Application specific Congestion control for Data Communication
BCCH
Broadcast Control Channel
BL
Bandwidth reduced Low complexity
BR-BCCH
Bandwidth Reduced Broadcast Control Channel
BSS
Basic Service Set
CMAS
Commercial Mobile Altert System
CSG
Closed Subscriber Group
DRX
Discontinuous Reception
DL-SCH
Downlink Shared Channel
EHPLMN
Equivalent Home PLMN
EPC
Evolved Packet Core
EPS
Evolved Packet System
ETWS
Earthquake and Tsunami Warning System
E-UTRA
Evolved UMTS Terrestrial Radio Access
E-UTRAN
Evolved UMTS Terrestrial Radio Access Network
FDD
Frequency Division Duplex
GERAN
GSM/EDGE Radio Access Network
GWUS
Group Wake Up Signal
HPLMN
Home PLMN
HSDN
High Speed Dedicated Network
H-SFN
Hyper System Frame Number
HRPD
High Rate Packet Data
IAB
Integrated Access and Backhaul
IMSI
International Mobile Subscriber Identity
MBMS
Multimedia Broadcast-Multicast Service
MBSFN
Multimedia Broadcast multicast service Single Frequency Network
MCC
Mobile Country Code
MCCH
Multicast Control Channel
MDT
Minimization of Drive Tests
MM
Mobility Management
MNC
Mobile Network Code
MPDCCH
MTC Physical Downlink Control Channel
MTCH
Multicast Traffic Channel
NAS
Non-Access Stratum
NB-IoT
NarrowBand Internet of Things
NR
NR Radio Access
NRS
Narrowband Reference Signal
NTN
Non-Terrestrial Network
PLMN
Public Land Mobile Network
ProSe
Proximity-based Services
PSM
Power Saving Mode
PTW
Paging Time Window
PWS
Public Warning System
RAT
Radio Access Technology
RNA
RAN-based Notification Area
RNAU
RAN-based Notification Area Update
RRC
Radio Resource Control
SAP
Service Access Point
SIBX
SystemInformationBlockTypeX
TDD
Time Division Duplex
UAC
Unified Access Control
UE
User Equipment
UMTS
Universal Mobile Telecommunications System
USIM
Universal Subscriber Identity Module
UTRA
UMTS Terrestrial Radio Access
UTRAN
UMTS Terrestrial Radio Access Network
V2X
Vehicle-to-Everything
WUS
Wake Up Signal
