LTE ENB Parameters-SVU 22022010 Rd Corr

1 © Nokia Siemens Networks Presentation / Author / DateFor internal use

LTE eNB Parametersoverview

Tomas Novosad


Contact information / download location

• If you have any questions, please contact presenter:

Presenter‘s Name

[email protected]

phone: +1 469 855 0738

GS MS NPO Capability Development

• Slides will be available in IMS/Sharenet– https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/

416123716


Table of Contents

• What are the LTE eNB parameters

• Where to find LTE eNB parameters

• Additional information sources regarding LTE eNB parameters

• LTE eNB parameters overview


What are the eNB ParametersLTE Radio Parameters RL09


LTE eNB Parameters – What are They?

S1-MME

S1-U

S11

SGi

HSS

User planeControl plane

Gateway

S6a

eNodeB

PDN

eNodeB MME

Radio Resource Manager is set of algorithms handling radio resources = how to handle resources (example better cell algorithm, A3 case)

• Algorithms are parametrized by different constant and thresholds, what to do specifically (example do handover towards better cell if the new cell is better than a3Offset=5dB for at least a3TimeToTrigger=1280ms.

ServingLTE

OperatorServices

Internet

CorporateServices

S1-U

X2


Where to Find ParametersLTE Radio Parameters RL09


Parameter Dictionary Database

Link: http://esodts051.emea.nsn-net.net:8080/pddb/


Additional Information Sources of eNB PrametersLTE Radio Parameters RL09


Parameter Explain & Additional Sources of Info

Course material LTE PAR

https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/416088647

It is course about LTE RL09 release eNB parameters.

Parameters are grouped according RRM functions

See TOC on next slide.


LTE Radio Parameters [RL09] (RA4121-09A) Pilot training were in Munich (2 Feb 2010 – 5 Feb 2010)

1. Introduction, Welcome Tue 0900 - 0930

2. LTE Functionalities and Overview Tue 0930 - 1200

3. Channel Configuration Tue 1300 - 1500

4. System Information Broadcast Tue 1500 - 1700

5. Radio Admission Control (RAC) Wed 0900 - 1000

6. LTE Mobility Management (I) Wed 1000 - 1200

7. LTE Mobility Management (II) Wed 1300 - 1430

8. MIMO Mode Control (MIMO-MC) Wed 1430 - 1700

9. UL/DL Scheduler Thu 0900 - 1200

10. Random Access Thu 1300 - 1500

11. Radio Bearer Control & DRX /DTX Thu 1500 - 1700

12. Power Control Fri 0900 - 1100

13. Inter Cell Interference Coordination Fri 1100 - 1200

14. MME Fri 1300 - 1415

15. Wrap-up, Discussion Fri 1415 - 1700


Parameter Explain & Additional Sources of Info

•LTE P3 Enabling Material from Network Engineeringhttps://sharenet-ims.inside.nokiasiemensnetworks.com/Open/415401605Power point with RL10 features, dimensioning issues, partly about parameters.

•3GPP Specifications (36.xxx series) – quite a lot of parameters are coming from there. Specific standards are referred by parameter dictionary and by other documents in case the parameter is coming from standard. The standard however is not systematic reading about parameters.

•System Feature Specifications in DOORSReference documentation of Radio Access - algorithms and features including parameters. Word or pdf documents. Rather not for first reading about parameters.Basic info about DOORS on link:https://inside.nokiasiemensnetworks.com/global/MyServices/IT/Applications/Nokia_cross-usage_applications/NokiaProductProcess/doorsapplication/Pages/DOORS.aspx


eNB Parameter OverviewLTE Radio Parameters RL09


Parameter Increments and LTE Releases

•Different sets of LTE eNB parameters exist due to different SW increments

•Which parameter increment is for which LTE Release?

•Increment 18 corresponds RL09

•When specification is done for Inc 21 also parameters coming to Inc 21 which is for RL10.

•But there is plan to made so called output release for RL09 and RL10 based on mentioned releases.

•If one want to see/have all parameters for specific SW version/increment, best way is to export parameter in excel format out.


Organization around parameters

•Parameters are generated/created as per increments.

•Parameter database contains different increments – example inc 18 (RL09)


PDDB – parameters structure and reports






Parameter list and parameter manipulation

Excel with parameters as created and downloaded from PDB -> SW increment 18, status 18022010

Parameter manipulation –> Parameter to be accessible by NetAct OSS (in commercial versions). Manipulation of parameter during trials depends on how are arranged by PL, mostly means edit & upload xml files.

Example of eNB data fill – inc18

Microsoft Excel Worksheet

XML Document


Sumary of parameters in LTE eNB

• 454 Parameters are currently defined in PDDB Tool (February 2010)

– Increment 18 (release RL09)

– Parameter have still comments like draft, proposal, quite a minimum is approved.

•Parameter breakdown according– Related function in RRM

– Handling changes on the network – do we need restart?


How about parameter manipulation?

• Not modifiable (144)

• On line (64)

• eNB restart needed (246)


LTE Parameters according related function in RRM

(Inc 18)• Admission Control (8)• Aperiodic CQI Configuration (1)• E-RAB Control (10)• Handover Control (20)• Packet Scheduler (105)• Packet Scheduler, Aperiodic CQI Configuration (1)• Packet Scheduler, Downlink MIMO Configuration (1)• Packet Scheduler, Power Control (1)• Packet Scheduler, Random Access (1)• Packet Scheduler, Uplink PHY (2)• Periodic CQI Configuration (7)• Power Control (17)• Random Access (5)• S1/X2 Common Signaling (36)• Scheduling Request Configuration (1)• Sounding Reference Symbol Configuration (6)• System Information Broadcast (41)• Uplink PHY (3)• Rest of parameter is non categorized (188)


Open issues & conclusion remarks

•Follow parameters evolution to update parameter material with the output releases and keep in mind still feasible differences of SFS, data fill and PDB.

•LTE eNB parameter data fill definitely need consultancy and support from PL in case of trials.

• LTE is becoming more practical and there is no control of what everything is happening. It would be good if everybody would keep us informed or upload that kind of information within the Project uploads folder •https://sharenet-ims.inside.nokiasiemensnetworks.com/Open/384615001

•But that is not very often case. Thus, it is good practice to send questions and queries on the LTE Forum:•https://sharenet-ims.inside.nokiasiemensnetworks.com/livelink/livelink?func=ll&objId=383269311&objAction=view&sort=ordering&viewType=1


• Project uploads are an essential input for community members and the best way to share learning

• Interesting project documents (guides, test/trial results, customer presentation) should be uploaded and shared

• Every community member has upload rights to IMS

Document Library – Project uploads

Specify contact person and if

applicable product information (release and software level)


Document descriptors for uploads

In description field

• Description of the contents of the document

• GERAN/UTRAN/LTE release and vendor

In Metadata field

• Author

• Keywords


Presentation / Author / Date

END & QUESTIONS

Documents

LTE ENB Parameters-SVU 22022010 Rd Corr