Nokia Siemens Networks WCDMA RAN System, Rel. RU10, Pre-Release DocumentationConfidental
Rel. RU10, Pre-release Documentation
Feature Introduction
* © Nokia Siemens Networks DRAFT <dnxxxxxxx> Issue <y-y>
The information in this document is subject to change without notice and describes only the product defined in the introduction of this documentation. This document is intended for the use of Nokia Siemens Networks customers only for the purposes of the agreement under which the document is submitted, and no part of it may be used, reproduced, modified or transmitted in any form or means without the prior written permission of Nokia Siemens Networks. The document has been prepared to be used by professional and properly trained personnel, and the customer assumes full responsibility when using it. Nokia Siemens Networks welcomes customer comments as part of the process of continuous development and improvement of the documentation.
The information or statements given in this document concerning the suitability, capacity, or performance of the mentioned hardware or software products are given “as is” and all liability arising in connection with such hardware or software products shall be defined conclusively in a separate agreement between Nokia Siemens Networks and the customer. However, Nokia Siemens Networks has made all reasonable efforts to ensure that the instructions contained in the document are adequate and free of material errors and omissions. Nokia Siemens Networks will, if deemed necessary by Nokia Siemens Networks, explain issues which may not be covered by the document.
Nokia Siemens Networks will correct errors in the document as soon as possible. IN NO EVENT WILL NOKIA SIEMENS NETWORKS BE LIABLE FOR ERRORS IN THIS DOCUMENT OR FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, DIRECT, INDIRECT, INCIDENTAL OR CONSEQUENTIAL OR ANY MONETARY LOSSES,SUCH AS BUT NOT LIMITED TO LOSS OF PROFIT, REVENUE, BUSINESS INTERRUPTION, BUSINESS OPPORTUNITY OR DATA,THAT MAY ARISE FROM THE USE OF THIS DOCUMENT OR THE INFORMATION IN IT
This document and the product it describes are considered protected by copyrights and other intellectual property rights according to the applicable laws.
Wave logo is a trademark of Nokia Siemens Networks Oy. Nokia is a registered trademark of Nokia Corporation. Siemens is a registered trademark of Siemens AG. 
Other product names mentioned in this document may be trademarks of their respective owners, and they are mentioned for identification purposes only.
Copyright © Nokia Siemens Networks 2007. All rights reserved.
Confidental
Version history
Version
Date
By
Comments
0.0.1
04.09.07
0.0.n
dd.mm.yy
Author
Draft…
0.1.0
dd.mm.yy
Author/Approver
Material ready for conversion. Note: Add text ”Version 0.1.0; ready for conversion” in the PI Version description field when checking document in PI.
0.2.0
dd.mm.yy
Collaborator
Instructions
This template can be found in PI folder:
Projects/WCDMA RAN/System Programs/RU10 System Program/Customer Documentation/Customer Documentation Masters/ RU10 pre-release 1
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 the customers on features. You can use it as it best fits the feature in question, with the following 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 .
As the materials will be converted to PDF for customer delivery, try to avoid inserting any (.ppt, .doc, .xls) attachments into the slide set. The links will disappear in the conversion.
Versioning of the materials (see the previous slide)
Storage for the materials:
Store the training material slide set in the category folder in PI. The category folders are in the RU10 pre-release 1 folder mentioned above.
Once your slide set is ready for conversion (-> publishing), please mark clearly in the PI version description field ” Version 0.1.0; ready for conversion”.
Inform Teija Wunsch by e-mail that the material is ready for conversion.
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.
Confidental
Introduction
This feature belongs to operating software.
System Information Block type 11bis (SIB11bis) provides extension segments for SIB11. SIB11bis solves an inconsistency problem in 3GPP TS 25.331, which has prevented the usage of complete neighbouring cell lists for idle mode UEs.
3GPP R6 introduces SIB11bis, which allows operator to define 32 intra-frequency, 32 inter-frequency and 32 inter-system neighbouring cells for idle mode UEs. All these neighbours were originally intended to be included in SIB11, but in the specifications the physical size of SIB11 data has capacity only for 47 cells.
In demanding environments, the existing size of SIB11 may not be enough. As the intra-frequency neighbours are typically given the highest priority, the inter-frequency and inter-system neighbour cell lists may remain incomplete. When relevant neighbours are missing from the SIB11, the UE cannot make optimal cell selection, which may lower the performance in call success rates.
SIB11bis is a backward compatible solution to correct the problem in SIB11.
Confidental
Benefits for the operator
Complete neighbouring cell lists can be provided to guarantee the optimal cell re-selection and end-user QoS.
Confidental
Functional description
When the amount of defined neighbouring cells (intra-frequency, inter-frequency and/or inter-system) becomes greater than can be encoded to SIB11, SIB11bis is taken to use. The amount of neighbouring cells that can fit to SIB11 depends on the parameter values of neighbouring cells. SIB11 is guaranteed to be able to contain 47 as maximum number of neighbors with any configuration (35 if HCS is used).
The remaining neighbouring cells are encoded to SIB11bis and MIB, SB1 and SIB18 are updated accordingly and transmission schedule is calculated.
Then the encoded RRC SYSTEM INFORMATION message and the transmission schedule is transmitted to BTS using NBAP: SYSTEM INFORMATION UPDATE REQUEST message.
BTS then decodes the NBAP message and starts to transmit RRC SYSTEM INFORMATION messages according the given schedule.
UE then receives and decodes the contents the RRC SYSTEM INFORMATION message. After the decoding UE has full knowledge of all defined neighbouring cells
Confidental
Implementation in RAN
New SIB type is introduced to NBAP and RRC protocols
The neighbouring cells that do not fit into SIB11 are packed to SIB11bis
When SIB11bis is used corresponding updates required by the 3GPP TS 25.331 are done to contents of MIB, SB1 and SIB18
Update to MIB and SIB1 is the support of the new SIB type extension IE
Update to SIB18 is the support of listing the PLMN identities for the cells present in SIB11bis
Confidental
Signaling flows
Message flow has not been changed or updated due to this feature.
BTS
RNC
UE
HW/SW requirements
SW requirements
HW requirements
RAS
RNC
Activation and operation
How to activate?
No activation, this feature is supported by default in RU10
How to verify/monitor?
Message monitoring on Iub interface should show SIB11bis present in NBAP: SYSTEM INFORMATION UPDATE REQUEST message
Message monitoring on Uu interface should show SIB11bis present in RRC SYSTEM INFORMATION message
How to deactivate?
No deactivation, this feature is supported by default in RU10
Confidental
Interdependencies between features
Confidental
Management data
Counters
Confidental
Related customer documents
According to current plans, the following documents in later customer documentation deliveries will include further information on this feature
???? (is there any?)
Confidental
BTSRNC