tsg-a wg3 title: irat son in 3gpp source: yuanfang yu, xiaowu zhao, ting lu, yonggang fang abstract:...

TSG-A WG3

Title: iRAT SON in 3GPPSource: Yuanfang Yu, Xiaowu Zhao, Ting Lu, Yonggang Fang

Abstract:

This contribution provides some information about the solution for SON between LTE and UTRAN/GEREN defined in 3GPP.

Date: February 6, 2012

Recommendation:

FYI.

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SON between E-UTRAN and UTRAN/GERAN

SGSNBSS

MMEeNodeB

E-UTRAN

GERAN

Gb/Iu

RIM Signaling

Relaying RIM Signaling S3/Gn

S1

RIM Signaling

3GPP has used RIM(RAN Information Message) messages to support the SON features (e.g. MLB, MRO) between E-UTRAN and UTRAN/GEREN. The related standardized work for iRAT MLB between E-UTRAN and UTRAN/GEREN has been completed in 3GPP R10 which influences TS36.413/ TS36.423/ TS48.018, the related standardized work for iRAT MRO between E-UTRAN and UTRAN/GEREN will be completed in 3GPP R11. SON between E-UTRAN and eHRPD which has been included in 3GPP2 SON WI-00299 cannot be supported by 3GPP specifications now.

RIM in 3GPP -0

• The information from TS 36.413 (S1AP)– 9.1.14 eNB DIRECT INFORMATION TRANSFER (Direction: eNB MME)This message is sent by the eNB in order to transfer specific information.– 9.1.15 MME DIRECT INFORMATION TRANSFER (Direction: MME eNB)

IE/Group Name Presence Range IE type and reference

Semantics description

Criticality Assigned Criticality

Message Type M 9.2.1.1 YES ignoreInter-system Information Transfer Type

M 9.2.1.55 YES ignore

9.2.1.55 Inter-system Information Transfer TypeIE/Group Name Presence Range IE type and

referenceSemantics description

CHOICE Inter-system Information Transfer Type

>RIM>>RIM Transfer 9.2.3.23



RIM Transfer>RIM Information M 9.2.3.24>RIM Routing Address

O 9.2.3.25

9.2.3.23 RIM Transfer

– 9.2.3.24 RIM Information



Criticality

Assigned Criticality

CHOICE RIM Routing Address

>GERAN-Cell-ID ->>LAI M .1 ->>RAC M 9.2.3.2 ->>CI M OCTET

STRING (2)-

>Target RNC-ID ->>LAI M 9.2.3.1 ->>RAC O 9.2.3.2 ->>RNC-ID M INTEGER

(0..4095)If the Extended RNC-ID IE is included in the Target ID IE, the RNC-ID IE shall be ignored.

-

>>Extended RNC-ID

O 9.2.1.14 The Extended RNC-ID IE shall be used if the RNC identity has a value larger than 4095.

-

9.2.3.25 RIM Routing Address



RIM Information>RIM Information M OCTET STRING Contains the BSSGP RIM

PDU as defined in ref TS 48.018 [18].

RIM in 3GPP -1

• The information from TS 48.018 (BSSGP)– 8c.1.3 RIM PDUs description

• 8c.1.3.1 RAN-INFORMATION-REQUEST PDU• 8c.1.3.2 RAN-INFORMATION PDU• 8c.1.3.3 RAN-INFORMATION-ACK PDU• 8c.1.3.4 RAN-INFORMATION-ERROR PDU• 8c.1.3.5 RAN-INFORMATION-APPLICATION-ERROR PDU

– 10.6 PDU functional definitions and contents at RIM SAP

Information elements Type / Reference Presence Format Length

PDU type PDU type/11.3.26 M V 1

Destination Cell Identifier RIM Routing Information/11.3.70 M TLV 3-?

Source Cell Identifier RIM Routing Information/11.3.70 M TLV 3-?

RIM Container RAN-INFORMATION-REQUEST/ RAN-INFORMATION/ -ACK/ -ERROR/ -APPLICATION-ERROR RIM Container/11.3.62a.1/-.2/ -.3/ -.4/ -.5

M TLV 3-?

– 11.3.62a RIM Container• 11.3.62a.1 RAN-INFORMATION-REQUEST RIM Container• 11.3.62a.2 RAN-INFORMATION RIM Container

8 7 6 5 4 3 2 1Octet 1 IEI

Octet 2, 2a Length IndicatorOctet 3-? RAN-INFORMATION RIM Container Contents coded as defined in

table 11.3.62a.2b

Information Elements Type / Reference Presence Format LengthRIM Application Identity RIM Application Identity /11.3.61 M TLV 3RIM Sequence Number RIM Sequence Number /11.3.62 M TLV 6

RIM PDU Indications RIM PDU Indications /11.3.65. M TLV 3RIM Protocol Version Number RIM Protocol Version Number/11.3.67 O TLV 3

Application Container (NOTE 1) RAN-INFORMATION Application Container /11.3.63.2

C (Note 1) TLV 4-?

Application Error Container (NOTE 1) Application Error Container/11.3.64 C (Note 1) TLV nSON Transfer Application Identity (note

2)SON Transfer Application Identity/11.3.108 C TLV 3-m

NOTE 1: The presence of application information depends on the value of the RIM Application Identity IE. If application information is mandatory either the Application Error Container IE or the Application Container IE is present.

NOTE 2: The SON Transfer Application Identity IE shall be present if and only if the RIM Application Identity IE is set to "SON Transfer".

Table 11.3.62a.2.b: RAN-INFORMATION RIM Container Contents

Table 11.3.62a.2.a: RAN-INFORMATION RIM Container IE

– 11.3.63.2 RAN-INFORMATION Application Container Unit• 11.3.63.2.4 RAN-INFORMATION Application Container for the SON Transfer Application ： SON Transfer

Response Container （ RAT discriminator只定义了 E-UTRAN, UTRAN, GEREN）

Table 11.3.63.2.4: RAN-INFORMATION Application Container coding for SON Transfer

8 7 6 5 4 3 2 1

Octet 1 IEI

Octet 2, 2a Length Indicator

Octet 3 Spare RAT discriminator

Octet 4-m Reporting Cell Identifier

Octet (m+1)-n

SON Transfer Response Container

RIM in 3GPP -2• The information from TS 36.413 (S1AP)

– B.1.3 SON Transfer Response Container： Cell Load Reporting Response– B.1.5 Cell Load Reporting Response (used for E-UTRAN, UTRAN, GERAN)– B.1.6 E-UTRAN Cell Load Reporting Response： Composite Available Capacity Group



CHOICE SON Transfer Application M>Cell Load Reporting

>>Cell Load Reporting Response M B.1.5>Multi-Cell Load Reporting

>>Multi-Cell Load Reporting Response

M B.1.9

>Event-Triggered Cell Load Reporting

>>Event-triggered Cell Load Reporting Response

M B.1.12

>HO Reporting NULL

IE/Group Name Presence Range IE type and reference Semantics description

CHOICE Reporting RAT M>E-UTRAN

>>E-UTRAN Response M E-UTRAN Cell Load Reporting Response B.1.6

>UTRAN>>UTRAN Response M OCTET STRING

>GERAN>>GERAN Response M OCTET STRING

B.1.3

B.1.5

RIM in 3GPP -3

• The information from TS 36.423 (X2AP)， LTE loading information indication for iRAT scenario:

– 9.2.44 Composite Available Capacity Group: Composite Available Capacity Downlink/Uplink– 9.2.45 Composite Available Capacity: Cell Capacity Class Value(1-100, 1 indicates minimum

capacity)/ Capacity Value(0~100)


Semantics description Criticality Assigned Criticality

Composite Available Capacity Downlink

M Composite Available Capacity 9.2.45

For the Downlink - -

Composite Available Capacity Uplink

M Composite Available Capacity 9.2.45

For the Uplink - -



Criticality Assigned Criticality

Cell Capacity Class Value O 9.2.46 - -Capacity Value M 9.2.47 ‘0’ indicates no

resource is available, Measured on a linear scale.

- -

9.2.44

9.2.45

RIM in 3GPP -4

• The information from TS 29.274 (S3 between SGSN and MME)– 7.3.19 RAN Information Relay

Information elements P Condition / Comment IE Type Ins.

BSS Container M All information elements from the RIM messages, starting from and including the BSSGP "PDU type", shall be contained within the BSS Container and forwarded to the destination MME/SGSN in the RAN Information Relay message.

F-Container 0

RIM Routing Address C This IE shall be included if the RIM Routing Address information is included in the message sent from the source RAN node.This IE identifies the destination RAN node where the RAN Information needs to be relayed to. It contains: -the destination RNC Identity when the target is GERAN Iu mode or UTRAN; or

-the destination Cell Identity when the target is GERAN; or

-the Target eNodeB ID when the target is E-UTRAN.

Target Identification 0

Private Extension O None Private Extension VS

tsg-a wg3 title: irat son in 3gpp source: yuanfang yu, xiaowu zhao, ting lu, yonggang fang abstract:...

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