RAN1643 HSDPA 64QAM Training Material

7/29/2019 RAN1643 HSDPA 64QAM Training Material

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1 © Nokia Siemens Networks DRAFT DN70656678 Issue 1-0

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Nokia Siemens Networks WCDMA RAN System,rel. RU20, operating documentation, issue 0,

pre-release

RAN1643: HSDPA 64QAM

Feature Introduction



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The information in this document is subject to change without notice and describes only the product defined inthe introduction of this documentation. This document is not an official customer document and NokiaSiemens Networks does not take responsibility for any errors or omissions in this document. This document isintended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted. No part of this documentation may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. Thedocumentation has been prepared to be used by professional and properly trained personnel, and the

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Version history<This slide to be removed from the customer version>

Version Date By Comments

0.0.1 02.02.09 Ioannis Maniatis First draft

0.1.0 23.02.09 Ioannis Maniatis /Michael Heilig

Material ready for conversion.

0.2.0 17.03.09 Przemysław Szczuc Material ready for publishing.



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Instructions<This slide to be removed from the customer version>

1. This template can be found in PI folder: Projects/WCDMA RAN/System Programs/RU20 System Program/Customer Documentation/Quality, Processes and Tools/

2. Creating the materials: – The purpose of this template is to harmonise the contents of this customer delivery

and to provide you guidance as to which information is typically requested by thecustomers on features. You can use it as it best fits the feature in question, with thefollowing restrictions:▪ Try not to change the order of the slides.

▪ Slide 1: Add just the feature name in the brackets (capitalised initial letters).▪ Slide 2: Is our Disclaimer i.e. legat text. Please do not touch .

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2. Versioning of the materials (see the previous slide)

4. Storage for the materials:

– Store the training material slide set in Projects/WCDMA RAN/System Programs/RU20System Program/Customer Documentation/Customer documents/Pre-release 1/< the categoryfolder> in PI. Once your slide set is ready for conversion (-> publishing), please markclearly in the PI version description field ” Version 0.1.0; ready for conversion”.

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Note: Please, keep in mind that this material will be delivered to the customers;

be careful not to include any internal information in this set.



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Introduction to RAN1643

• Introduction to the feature RAN1643: HSDPA 64QAM

– 64QAM modulation increases the HSDPA peak rate up to 21.1 Mbps.

– Practical throughput is limited by radio interface condition such assignal strength and interference.

– UE categories 13, 14, 17, and 18 support 64QAM modulation.



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RAN1643 Benefits for the operator

• How does this feature benefit the customer?

– HSDPA 64QAM feature enables higher HSDPA bit rates as compared

to existing QPSK and 16QAM schemes, and it offers possibilities for subscription differentiation and additional data service revenue.In addition to a single user peak rate enhancement, the average cellthroughput is also increased, which improves both end-user experience and overall network efficiency.



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RAN1643 Functional description

• 3GPP Rel7 introduces 64QAM modulation for HSDPA, which increasesthe HSDPA peak data rate up to 21.1 Mbps. New HSDPA terminalcategories 13, 14, 17 & 18 support 64QAM. Practical throughput that canbe achieved with this feature is limited by radio reception.

• Maximum theoretical throughput 21.1 Mbps of category 14 and category18 terminals would require the use of coding rate close to one, that is,error-free reception without error correction coding. Targeting error-freereception reduces the system efficiency and capacity. In all practicalconditions the throughput will be decreased if used coding rates are close

to one.• Quality of radio reception depends on aspects such as received signal

strength, radio channel and interference. 64QAM is even more sensitive tothe quality of radio reception than 16QAM. The link adaptation algorithm inthe BTS (MAC-ehs) selects 64QAM when the channel quality is sufficientand the UE is 64QAM capable.

• 64QAM provides 3 -15 % higher average HSDPA cell and user throughput, depending on the radio conditions and UE receiver.

• 64QAM is an optional feature for the UE. 64QAM capability is signaled toRNC in RRC connection setup.



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RAN1643 Implementation in RAN

• How will the feature be implemented in RAN?

– The feature is controlled by an on/off-type license. The license controlis in RNC. If RNC allows usage of HSDPA 64QAM, then BTS decideswhether the feature is used or not.



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RAN1643 Activation and operation

• How to activate? – On/off license

• How to verify/monitor? – Feature HDPSA 64 QAM requires monitoring the effect of 64QAM

modulation for the HSDPA downlink, for example

▪ How many PDUs have been transmitted with 64QAM?

▪ How many UEs with CAT 13 or 14, 17 or 18 (64QAM capability)requested a connection?

– 3 new counters are implemented ,see slide 9

• How to deactivate? – On/off license



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RAN1643 Interdependencies between features

• Dependencies/effects/connections to other features

– This feature requires the following features:

▪ RAN1638 Flexible RLC (DL)

▪ RAN312 Dynamic Resource Allocation

▪ RAN1258 HSDPA 14 Mbps per User (includes also RAN852 HSDPA 15Codes )

▪ RAN764 HSDPA 16 QAM

▪ RAN826 HSUPA



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RAN1643 Management data

• Parameters

– Cell level parameter HSDPA64QAMAllowed shall be set to “enabled”in order to allow use of HSDPA 64QAM in the cell.

• Counters

– New counters will be added

▪ UE SUPPORT FOR HSDSCH CLASS 13 OR 14▪ UE SUPPORT FOR HSDSCH CLASS 15 OR 16

▪ UE SUPPORT FOR HSDSCH CLASS 17 OR 18



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RAN1643 HW/SW requirements

• SW requirements

• HW requirements

– This feature requires RAN1016/1848: Flexi BTS Multimode System Module or RAN1671: Enhanced UltraSite Base Band (EUBB).

– In the RNC RAN1226: HSPA Peak Rate Upgrade for RNC196 and RNC450 isrequired.

RAS RNCBTSUltra

BTSFlexi

BTSPico

BTSNBxxx

AXC NetAct MSC SGSN MGW UE

Release RU20 RN5.0WBTS6.0

WBTS6.0

- - C6.0 - - SG7.0 -3GPPRel-7

RAN1643 HSDPA 64QAM Training Material

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