7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 1/11

1 © Nokia Siemens Networks

Company Confidential

RU10 Dimensioning TTT WorkshopFeatures Impacting Air Interface and BB Dimensioning

Part 2

Aniela Szulc

Network Engineering

COO RA MRD SA NEWroclaw, 27-29.02.2008

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 2/11

2 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RU10 Feature CollectionFeatures impacting Air Interface Dimensioning

RAN1545 : High power RRH 60W with OBSAI and CPRIinterface

RAN580 : Load Based AMR Codec Mode Selection

RAN285 : HSPA Multi NRT RABs

RAN1323 : Extension of SIB11 (SIB11bis)

RAN1258 : HSDPA 14 Mbps per User

RAN1244 : Spectral Efficient Link Adaptation for HSDPARAN1486 : C-Iub: NBxxx Support for RNC RB Combinations

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 3/11

3 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN1545 : High power RRH 60W with OBSAI andCPRI interfaceMotivation: 

For improvement of HSDPA performance in indoor and outdoor scenarios.

For improvement of coverage in rural areas / together with 4Rx in UL

For high capacity sites with up to 4 carriers

For RAN sharing scenarios

Functionality:

New RRH type suitable for both product lines (NB/RS -> CIPRI; Flexi  –> OBSAI)

Up to 60W Tx Power

Up to 4 carriers supported

MORAN suitableNetwork Design Impact:

Traffic Model: no

 Air Interface: new FR part considered in the link budget calculations

BTS:

New BTS configurations

BB: no

Iub Interface: no

Iu-PS: no RNC: no

Tools:

Radio Dimensioning tools:

Link Budget Tool: new RF type is required

UTRAN Dim Tool: new NodeB/BTS configurations to be considered

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 4/11

4 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN580: Load Based AMR Codec Mode Selection

Motivation: 

With load based AMR codec selection feature more voice users can be served and more capacity is saved for data services

users in loaded networks

Functionality:

Load of Air Interface, spreading code usage and Iub/Iur loads thresholds can be used to optimize the selected AMR codecfrom (12.2), (12.2, 7.95, 5.90) and (5.90, 4.75) sets 

For incoming calls thresholds are used to determine the codec to be selected

For ongoing calls two thresholds (high and low) form hysteresis according to which AMR codec is adjusted

Supported only for NB AMR

Network Design Impact: Traffic Model: no

 Air Interface: yes

number of required carriers and load calculation is influenced by the feature

lower code rates allows higher cell range in UL and DL

BTS: no

Iub Interface: could be considered  loop back to Air Int. Dim. required

Iu-PS: no

RNC: no

Tools:

Radio Dimensioning tools:

Link Budget Tool: no

UTRAN Dimensionig Tool: optimized codec selection impact on number of carriers and load calculation

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 5/11

5 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN285: HSPA Multi NRT RABs

Motivation: 

HSPA Multi NRT RABs enables multiple new RAB combinations  – 2 or 3 NRT RABs with HSDPA / HSPA

also with combinations with AMR or PS Streaming RABsFunctionality:

Supported RAB combinations

RAB Combinations

1 2 NRT RABs, UL DCH/DL HSDPA, SRB on DCH (UL rates: 16/64/128/384kbps)

2 3 NRT RABs, UL DCH/DL HSDPA, SRB on DCH (UL rates: 16/64/128/384kbps)

3 AMR 12.2 + 2 NRT RABs, UL DCH/DL HSDPA, SRB on DCH (UL rates: 16/64kbps)4 AMR NB multirate + 2 NRT RABs, UL DCH/DL HSDPA, SRB on DCCH (UL rates: 16/64kbps)

5 AMR WB multirate + 2 NRT RABs, UL DCH/DL HSDPA, SRB on DCCH (UL rates: 16/64kbps)

6 AMR 12.2 + 3 NRT RABs, UL DCH/DL HSDPA, SRB on DCCH (UL rates: 16/64kbps)

7 AMR NB multirate + 3 NRT RABs, UL DCH/DL HSDPA, SRB on DCCH (UL rates: 16/64kbps)

8 AMR WB multirate + 3 NRT RABs, UL DCH/DL HSDPA, SRB on DCCH (UL rates: 16/64kbps)

9 2 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH

10 2 NRT RABs, UL E-DCH/DL HSDPA, SRB on UL: E-DCH/DL: 3.4kbps on DCCH

11 3 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH12 3 NRT RABs, UL E-DCH/DL HSDPA, SRB on UL: E-DCH/DL: 3.4kbps on DCCH

13 AMR 12.2 + 2 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH

14 AMR 12.2 + 3 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH

15 AMR NB multirate + 3 NRT RABs, UL E-DCH/DL HSDPA, SRB on UL/DL: 3.4kbps on DCCH

16 AMR NB multirate + 2 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH

17 AMR WB multirate + 2 NRT RABs, UL E-DCH/DL HSDPA, SRB on UL/DL: 3.4kbps on DCCH

18 AMR WB multirate + 3 NRT RABs, UL E-DCH/DL HSDPA, SRB UL/DL: 3.4kbps on DCCH

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 6/11

6 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN285: HSPA Multi NRT RABs

Functionality:

Restriction in case of UL DCH is used -> only one of the NRT RABs can be active at a time (other NRT RABs are inactive ->

0kbps)

UE reconfiguration due to handover to cells of different configuration (e.g. from DCH in non-HSDPA cell to HSUPA/HSDPA

in HSPA configured cells)

RNC handles each of the NRT RABs separately with regard to inactivity detection (downgrade to minimum rate or

reconfiguration to inactive)

Only when all RABs are inactive UE moves to Cell_FACH or Cell_PCH or Idle mode

Each NRT RB has its own MAC-d flow over Iub. Multiplexing and demultiplexing are performed in the Node B and UE

Network Design Impact:

Traffic Model: possible change of default traffic model

 Air Interface: new RABs to be considered in planning (new Link and System Level simulations required)

BTS: new RABs considered in the BB dimensionig

Iub Interface: no

Iu-PS: no

RNC: no

Tools:

Radio Dimensioning tools: New RABs to be considered in both Link Budget and UTRAN Dim Tool

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 7/117 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN1323: Extension of SIB11 (SIB11bis)

Motivation: 

SIB11bis solves the problem of too small SIB11 size (not enough space to handle all possible neighbours

in idle mode)

Functionality:

SIB11bis provides an extension block to SIB11

 All of possible 32 intra-frequency, 32 inter-frequency and 32 inter-system neighboring cells can be defined

per cell and are send to UE in idle mode with SIB11 and SIB11bis

Network Design Impact:

Traffic Model: no

 Air Interface: no

BTS: no

Iu-PS: no

RNC: no

Tools:

Radio Dimensioning tools: no

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 8/118 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN1258 : HSDPA 14 Mbps per User

Motivation: 

Current peak cell level throughput is 14.4 Mbps and the peak bit rate for single user is 10 Mbps.

Currently HSDPA category 10 UE can not be fully utilized

New peak rate per user is 14.4 Mbps

Functionality:

HSDPA 15 Codes is needed for this feature.

Coding rate close to 1  the high throughput requires error free transition and reception

New scheduler that is supported by Flexi Rel2 HW

Cell dedicated scheduler - WSPC/cell

Network Design Impact:

Traffic Model: no

 Air Interface: yes (new LL / SL simulations are required)

BTS: no

Iu-PS: no

RNC: no

Tools:

Radio Dimensioning tools: yes  – parameter change

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 9/119 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN1244 : Spectral Efficient Link Adaptation forHSDPAMotivation: 

In the current implementation, all remaining transmission power not used for R99 or HSUPA downlink channels is used forHSDPA.

This feature reduces the HS-PDSCH transmission power of the low data rate users and users who are in good radioconditions (report high CQI)

The feature gives capacity gain in highly loaded network when the interference to neighbour cells is decreased due to thepower reduction

Improves the spectral efficiency, network stability and end-user performance when R99 and HSDPA channels are used onthe same carrier

Functionality:

BTS packet scheduler calculates the power reduction based on a function of compensated CQI, TB size, number of HS-

PDSCH codes and modulation.

HS-PDSCH codes and power resources are shared more efficiently (unevenly split in case of code multiplexing possible) by

taking into account current buffer occupancy and channel conditions of the users in a single cell code multiplexing case.

Network Design Impact:

Traffic Model: no

 Air Interface: yes (new LL / SL simulations are required)

BTS: no

Iu-PS: no

RNC: no

Tools:

Radio Dimensioning tools: yes  – parameter change

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 10/1110 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

RAN1486: C-Iub: NBxxx Support for RNC RBCombinations

Motivation: 

Support of the same RBFunctionality:

The following RB combinations are supported in S-NB:

 AMR codec sets (12.2, 7.95, 5.9, 4.75) and (5.9, 4.75)

 All sets of N-RNC PS I/B DCH combinations with and without AMR

 All sets of N-RNC PS I/B UL DCH combinations with HS-DSCH

3 concurrent PS RBs

 All PS streaming DCH bit rates and combinations

PS streaming with AMR

Network Design Impact:

Traffic Model: no

 Air Interface: no (small impact, old simulation results can be reused)

BTS: no

Iu-PS: no

RNC: no 

Tools:

Radio Dimensioning tools: no

 Access Dimensioning tools: no

7/27/2019 Radio+Features+Part+2+

http://slidepdf.com/reader/full/radiofeaturespart2 11/1111 © Nokia Siemens Networks RU10 Air IF / BB Features/ COO RA MRD SA NE / Aniela Szulc

Company Confidential

Impact on Dimensioning

RAN1545 : High power RRH 60W with OBSAI and CPRI interface

RAN580 : Load Based AMR Codec Mode Selection

RAN285 : HSPA Multi NRT RABs

RAN1323 : Extension of SIB11 (SIB11bis)

RAN1258 : HSDPA 14 Mbps per User

RAN1244 : Spectral Efficient Link Adaptation for HSDPA

RAN1486: C-Iub: NBxxx Support for RNC RB Combinations