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TR 44.901RAN6
GSM/EDGE External
Network Assisted Cell Change (NACC)

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V14.0.0  2017/03  24 p.
V13.0.0  2016/01  24 p.
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Rapporteur:  Mr. Backlund, Ingemar

This TR provides background information, motivations, concepts and requirements regarding an extended Network Assisted Cell Change (NACC) feature for external cell change support. Cell change between GERAN and UTRAN cells is outside the scope of this report, although consideration has been taken in order to allow an easier extensibility to that case. The extension is based on the Release 4 version of the NACC feature where the mobile station is only supported by the NACC when performing internal cell re-selection, i.e. within a BSC. The extension of the feature is for GERAN just affecting BSS and for the core network the SGSN and signalling links between these network nodes. To support cell changes between GERAN and UTRAN, also the Um and the Uu interfaces are affected.

full Table of Contents for  TR 44.901  Word version:   15.0.0

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviations
4  Introduction and Motivation
5  Requirements
6  Generic mechanism for exchange of RAN information
7  Exchange of RAN information for external NACC
8  Interface load
9  Phased approach for the implementationWord-p. 20
10  Open Issues
11  Specification Impact and Associated Change Requests
A  Change HistoryWord-p. 22

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