RU40 BB Dimensioning Rules for SM Rel.2

RU40 Baseband dimensioning for System Module rel.2 Krzysztof Mertas Network Engineering 26.11.2012

General Information

This slide set shall not  be considered as an official feature description nor HSPA performance document. All references to those details in this document are for your convenience only and shall be double-checked from respective customer documents before any quotations. This document is not a RAN Dimensioning Guide. All capacity values and performance figures in this document shall be verified from WCDMA RAN documentation.

RU40 Baseband dimensioning for System Module rel.2

RU40 Baseband Dimensioning System Module rel.2 There are the following new baseband dimensioning rules in RU40 (comparing to RU30 release): •  HSUPA Processing Set definition and HSUPA resources allocation •  CCCH Processing Set license for CCCH processing •  MC-HSDPA cells mapping to scheduler (RU40 feature) •  HS_Cell-FACH UL (RU40 feature)

HSUPA baseband resources allocation in RU30 HSUPA Processing Set in RU30 •

HSUPA license is called HSUPA BTS Processing Set

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The HSUPA BTS Processing Set is a HSUPA BB resources reservation inside the Flexi System Module Rel.2, that allows for a certain number of HSUPA users and HSUPA throughput.

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HSUPA baseband resources allocation is performed in steps – so called HSUPA resource steps. One step is equal to 0,25 subunit

Users/throughput

Unlicen HSUPA Unlicensed BB HSUPA licensed capacity sed BB licensed capacity capacity capacity

HSUPA BTS Processing set

HSUPA licensed HSUPA thr., users capacity

HSDPA thr., users, HSDPA cells

HSUPA BTS Processing set

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1 HSUPA Processing Set corresponds to 1,5 subunit

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1 HSUPA Processing Set allows to reach 5.8Mbps or 24 users

HSDPA thr., users, HSDPA cells

HSUPA baseband resources allocation in RU40 HSUPA Processing Set in RU40 •

In RU40 HSUPA Processing Set license allows to reach up to 5.8Mbps and 24 users simultaneously

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The HW reservation inside System Module is not ref lecting the number of HSUPA PS licenses

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1 HSUPA Processing Set 1,5 Subunit

•  Appropriate amount of HSUPA resource steps is reserved to fulfill the throughput and users requirements from available number of HSUPA PS licenses •

BB reservation granularity is 1 resource step (0,25 s ubunit (System Module rel.2) / 0,125 subunit (System Module rel.3)) 1 Subunit

BB capacity

HSUPA licensed HSUPA Subunit HSUPA thr., users HSUPA thr., users capacity

HSUPA BTS Processing sets

HSDPA thr., users, HSDPA cells

HSDPA thr., users, HSDPA cells

CCCH Processing Set license

CCCH Processing Set license RU40 System Module rel.2 Each System Module rel.2 content includes resources for CCCH processing for basic configurations (e.g. 6cell/10km or 3cell/20km)

DL

1 x P-SCH 1 x S-SCH

However in certain cases (e.g. higher configuration or higher cell radius) more resources needs to be licensed for CCCH processing. In RU40 for pure System Module rel.2 (e.g. FSMD or FSME + FSME) Rel.99 CE might be required while with mixed HW case - System Module rel.3 and System Module rel.2 BTS (e.g. FSMF + FSMD) – CCCH Processing Set license is introduced. One CCCH Processing Set corresponds to 1 subunit (System Module rel.2) / 0,5 subunit (System Module rel.3) baseband capacity

1 x P-CCPCH 1 x P-CPICH 1 x PICH 1 x AICH 3 x SSCCPCH

UL PRACH

Common Control Channels (CCCH) CCCH Processing Set license • Number of cells with the certain cell radius & RxDiv mode that can be served with one CCCH Processing Set license can be verified with the formula: # _ of  _ cells

 (Cell  Rangei * # of  Signature si * Rx)  480 i 1 i   -

# of cells (1-6) Cell range – user cell radius in km rounded up to next 5km # of signatures – max number of preamble signatures 1=< z =