5G paging协议

nmgdy0718

NG口协议38.413
PAGING

This messageis sent by the AMF and is used to page a UE in one or several tracking areas.

Direction: AMF ® gNB

IE/Group Name	Presence	Range	IE type and reference	Semantics description	Criticality	Assigned Criticality
Message Type	M		9.3.1.1		YES	ignore
UE Identity Index Value	M		9.3.3.23		YES	ignore
UE Paging Identity	M		9.3.3.18		YES	ignore
Paging DRX	O		9.3.1.90		YES	ignore
TAI List for  Paging		1			YES	ignore
>TAI List for Paging Item		1..<maxnoofTAIforPaging>			-
>>TAI	M		9.3.3.11		-
Paging Priority	O		9.3.1.78		YES	ignore
UE Radio Capability for Paging	O		9.3.1.68		YES	ignore
Assistance Data for Paging	O		9.3.1.69		YES	ignore
Paging Origin	O		9.3.3.22		YES	ignore

9.3.3.18          UE Paging Identity

This IErepresents the Identity with which the UE is paged.

IE/Group Name	Presence	Range	IE type and reference	Semantics description
CHOICE UE Paging Identity	M
>5G-S-TMSI
>>5G-S-TMSI	M		9.3.3.20

9.3.3.23          UEIdentity Index Value

This IE is used by the NG-RAN node to calculate the Paging Frame asspecified in TS 38.304 [12].

IE/Group Name	Presence	Range	IE type and  reference	Semantics  description
CHOICE UE  Identity Index Value
>Index Length 10
>>Index Length 10	M		BIT STRING (SIZE(10))	Coded as specified in TS 38.304 [12].

9.3.1.90          Paging DRXThis IE indicates thePaging DRX as defined in TS 38.304 [12].

IE/Group Name	Presence	Range	IE type and reference	Semantics description
Paging DRX	M		ENUMERATED  (32, 64, 128, 256, …)

9.3.1.78          PagingPriority

This element indicates the paging priority for paging a UE.

IE/Group Name	Presence	Range	IE type and  reference	Semantics  description
Paging Priority	M		ENUMERATED (PrioLevel1,  PrioLevel2, PrioLevel3, PrioLevel4, PrioLevel5, PrioLevel6, PrioLevel7,  PrioLevel8, …)	Lower value  codepoint indicates higher priority.

9.3.1.68          UE Radio Capability for Paging

This IE contains paging specific UE RadioCapability information.

IE/Group Name	Presence	Range	IE type and reference	Semantics description
UE Radio Capability for Paging	M		OCTET STRING	RRC Container, as defined in TS 38.331 [18].

9.3.1.69          Assistance Data for PagingThis IE provides assistance information for pagingoptimisation.

IE/Group Name	Presence	Range	IE type and reference	Semantics description
Assistance Data for Recommended Cells	O		9.3.1.70
Paging Attempt Information	O		9.3.1.72

9.3.1.70          Assistance Data for Recommended CellsThis IE provides assistance information for paging inrecommended cells.

IE/Group Name	Presence	Range	IE type and reference	Semantics description
Recommended Cells for Paging	M		9.3.1.71

9.3.1.71          Recommended Cells for Paging

This IE contains the recommended cells forpaging.

This IE is transparent to the 5GC.

IE/Group Name	Presence	Range	IE type and reference	Semantics description
Recommended Cell  List		1
>Recommended  Cell Item		1..<maxnoofRecommendedCells>		Includes visited and non-visited cells, where visited cells are listed in  the order the UE visited them with the most recent cell being the first in  the list. Non-visited cells are included immediately after the visited cell  they are associated with.
>>NG-RAN  CGI	M		9.3.1.73
>>Time  Stayed in Cell	O		INTEGER (0..4095)	This is included for visited cells and indicates the time a UE stayed in  a cell in seconds. If the UE stays in  a cell more than 4095 seconds, this IE is set to 4095.

Range bound	Explanation
maxnoofRecommendedCells	Maximum no. of recommended Cells. Value is 16.