LTE Huawei

Security Level:

LTE for Claro www.huawei.com

Jan Berglund Wireless Marketing Director HUAWEI TECHNOLOGIES CO., LTD.

Contents Spectrum usage for Claro LTE in a SRAN perspective Interworking

HUAWEI TECHNOLOGIES CO., LTD.

Page 2

Proposed Claro spectrum layout LTE Data Overlay

LTE Capacity Layer

AWS B4: 20MHz – Urban LTE Capacity

LTE AWS

LTE APT700

APT700 : X MHz – LTE Coverage

Smartphone Capacity

Legacy voice capacity layer and new data capacity G1900 GU1900 1900MHz: 17.5MHz GSM -> 5+5U + 7.5G

Smartphone Coverage

3G Coverage Layer

850MHz: 5 +5 MHz UMTS

Voice Capacity

U850 Indoor coverage layer

850MHz: 2.5MHz GSM

2013 HUAWEI TECHNOLOGIES CO., LTD.

Voice Coverage

G850

2014

2015

2015 Page 3Page

3

Contents Spectrum usage for Claro LTE in a SRAN perspective Interworking

HUAWEI TECHNOLOGIES CO., LTD.

Page 4

SingleRAN Broad Hardware Pipe Solution

HUAWEI TECHNOLOGIES CO., LTD.

Page 5

BBU

RF

Cabinet

Controller

SingleBBU and CloudBB Evolution SRAN8.0 Concurrent MPT

Before Separated MPT

SRAN8.0

Near Future Concurrent BBP

BBU Stack 

General Hardware

Coming

Centralized maintenance

Near Future

BBU Pooling 

Cloud BB

Pool for capacity gain and sharing 

UBBP(GUL)

CloudBB





UMPT(GUL) WBBP



Open API

30%+ capacity improving 30%+ OPEX saving QOE enhancing

LBBP

UMPT( GUL) WBBP GTMU

UMPT( U)

LBBP UMPT( L)

SingleBBU, not Just Co-BBU

Evolve to CloudBB Step by Step

• 5B3M in One BBU • From MPT Concurrent to BBP Concurrent

• BBU Capability Double Every Year • BBU Architecture Evolution Matching BBU Growth

HUAWEI TECHNOLOGIES CO., LTD.

Page 6

SingleBBU Architecture from SRAN8.0 SRAN 6.0/SRAN7.0

SingleRAN

G

G

GTMU

U

U

LMPT

WBBP

LBBP

SingleRAN

Controller

SingleOM in OSS

Separate OAM interface

Single OAM interface

GUL Dedicated HW for each RAT

UMPT GBBP

WBBP

LBBP

UMPT GUL Concurrent , Making Separated G/U/L OM to SingleOM HUAWEI TECHNOLOGIES CO., LTD.

Cabinet

GUL

L

WMPT

RF

SRAN8.0 SingleRAN in OSS

L

BBU

Page 7

Common HW for each RAT

SingleRAN Common BBU Benifits Single Operation From One Team to One Knowledge

6

Common Hardware test instance

-80%

4

GSM

UMTS

LTE

2 0 UMTS

LTE

Common part (iRAT part)

Common Hardware

GSM Common part (Single RAT)

MML Commands (x1000)

1

-40%

0.8

SingleRAN 3 brains(~2013)

SingleRAN(With SingleOM) RAT related

0.6 0.4

GSM

UMTS

LTE

0.2 0 NodeB 4

Common Hardware

eNodeB

GBTS

SingleRAN( with SingleOM)

Integration Parameters (x1000)

-40%

3 2

SingleRAN 1 brain (2013~)

1 0 NodeB

HUAWEI TECHNOLOGIES CO., LTD.

eNodeB

GBTS

SingleRAN(with SingleOM) Page 8

BBU

RF

Cabinet

Controller

UMPT Evolution and Specification UMPT Specification & Capacity

UMPT Evolution

4E1/T1 2FE/GE

 GUL 

Same Hardware for UMTS and LTE





Concurrent

Dynamically

Signaling Sharing

In-house Chipset

Hardware Ready for GUL Concurrent evolution

Before • • •

SRAN7.0

HUAWEI TECHNOLOGIES CO., LTD.

SRAN8.0

G: 60 TRX(IP) U: 170 CNBAP/s L: 30 CAPs

Now G: 72 TRX; U: 1500 CNBAPs • L: 120 CAPs • GUL(Typical Concurrent ): 18 TRX+1000CNBAPS+30CAPS •

Page 9

BBU

RF

Cabinet

Controller

Blade RRU, Designed for Multi-band and Multi-RAT Scalability

Scenario 1:  Band X  Sector 1

Scenario 2:  Band X + Y Or Sector 1 + 2

Scenario 3:  Band X + Y + Z Or Sector 1 + 2 + 3

Blade RRU Unique Seamless Assembly One Box Multi-band, Multi-RAT and Multi-sector Scalability

HUAWEI TECHNOLOGIES CO., LTD.

Smallest & Fastest 12L/14KG

Industry’s most lightweight macro RRU, three modules installed under 5 minutes

Best-in-class RF Performance Up to10W/L Power Density Up to 60MHz IBW 30% Less Power Consumption

Page 10

Software Defined Equipment

Blade RRU Flexible Installation Blade RRU Clean Site

6 Boxes

36L

2 Boxes

66% Box saved per site 50% Workload saved for cable 50% Wind resistance reduction

Dielectric duplexer

50% Highest Power Efficiency

One Chip for All Digital Functions Decrease 30% Power Consumption

4 Cables

12 Cables

Blade RRU Flexible Expansion

24L

12L

Band X + Y or Sector 1 + 2 or 4 x 4 MIMO

HUAWEI TECHNOLOGIES CO., LTD.

36L Band X + Y + Z or Sector 1 + 2 + 3

Super Slim Fin Die-Casting for ultra high efficiency heat sink

Chimney channel Fresh Air Compensation

12L/14KG

ONE

Industry Highest Integration

Box Assembly

Page 11

Software Defined Equipment

Best-in-class RF Performance PA Efficiency 370W 45%

320W

13.5%

50% DPD+A DHT/ Y-Power

40%

10% PA efficiency Improved, 13.5% Power saved

DPD+A DHT DPD+Doherty

Blade RRU

Instantaneous Bandwidth

Power Density 10W/L

60M

Blade RRU 25M

IBW

RRU3838 HUAWEI TECHNOLOGIES CO., LTD.

Up to 60M full bandwidth, One RRU support RAN Sharing

5W/L

2×60W@24L

Blade RRU

2×60W@12L Page 12

Up to 10W/L , Power integration doubled

BBU

Blade RRU Portfolio 2012

Cabinet

Controller

2013 3268 2T2R 3260 2x40W 2T4R 2x40W

2.6G

Blade RRU (2.1G) available for rollout in Q3, 2012 Blade RRU portfolio will cover all mainstream bands by 2013

3832 2T4R 2x60W

AWS

2.1G

RF

3838 2T2R 3832 2x40W 2T4R 2x60W

3824 1T2R 3826 1x60W 1T2R 1x80W

3936 1T2R 1x80W

900M/ 1800M

More bands will be supported by Blade RRU according the market needs beyond 2013

3938 2T2R 2x40W

3268 2T2R 2x40W

APT700 2012 Q3

2012 Q4

HUAWEI TECHNOLOGIES CO., LTD.

2013 Q1

2013 Q2

2013 Q3

Note: 850/1900 under planning

2013 Q4 Page 13

BBU

RF

Cabinet

Controller

Uplink 4Rx achieve 60% capacity gain  UL 4-Antenna Receive Diversity

60% Increase

With 4 antennas per

2Rx

sector for receiving

4Rx

Cell Average Throughput

2Rx -> 4Rx HUAWEI TECHNOLOGIES CO., LTD.

In operator X Commercial trial network,2012 Page 14

Uplink Shared Channel IRC Shared Channel IRC vs. MRC PUSCH IRC

Scenario: Urban area, small ISD (Inter Site Distance) sites

 

UEs Interfering on PUSCH

Victim cell

Interfering cell

2.4~3.7dB gain in 2Rx 5.3~5.7dB gain in 4Rx

Parameter

Assumption

Cellular Layout

Hex grid, 19 cell sites, 3 cells per site

Distance Dependant path-loss

L = I + 37.6log10R (R in km) I = 128.1 – 2GHz

Lognormal Shadowing

Similar to UMTS 30.03, B1.4.1.4

Shadowing Standard Deviation

8dB

Correlation distance of Shadowing

50m

Shadowing Correlation

Between cells

0.5

Between sectors

1.0

Antenna pattern (Horizontal) 3-sector cell sites with fixed antenna pattern

Uplink Shared Channel (PUSCH) IRC  9.55% increase UL Cell average Throughput (1X2 MMSE-IRC compared with MMSE-MRC )  Support of adaptive switch between MRC and IRC HUAWEI TECHNOLOGIES CO., LTD.

   2   , Am  A    min 12    1dB   1dB  70 deg, Am  20dB

Channel Model

SCME

Total BS TX power (Ptotal)

43 dBm – 1.25 / 5MHz carrier 46dBm - 10MHz carrier

Antenna configuration

2 or 4 for Rx, 1, 2 or 4 for Tx 4Tx: x-pol, 0.5λ 4Rx: x-pol, 0.5λ 5dB noise figure 14dBi BS antenna gain plus cable loss

UE power class

24dBm (250mW)

UE Antennas

2 or 4 Rx antennas, 1 Tx antenna 0dBi antenna gain 9dB noise figure

Inter-Cell Interference modelling

Modelling the strongest interfering sectors (B=8 sectors for DL, B=10 users for UL) as spatially correlated processes whose covariance is determined by their channel matrices Model the remaining sectors as AWGN interferences

Minimum distance between UE and cell

≥ 35m

Thermal noise spectral density

-174dBm/Hz

Page 15 Users dropped evenly across the cell

Uplink Control Channel IRC Scenario: Urban area’ small ISD (Inter Site Distance) sites

Control Channel IRC vs. MRC

PUCCH IRC

UEs Interfering on PRACH and PUCCH

   

Format1x 1dB gain in 2Rx Format2x 0.5dB gain in 2Rx Format1x 2dB gain in 4Rx Format2x 0.7dB gain in 4Rx

PRACH IRC Victim cell

Interfering cell

 

4~4.8dB gain in 2Rx 7.2~8.8dB gain in 4Rx

Uplink Control Channel (PUCCH/PRACH) IRC  20-40% increase in UL control channel coverage  Improve network access success rate  Support of adaptive switch between MRC and IRC HUAWEI TECHNOLOGIES CO., LTD.

Page 16

LTE Feature

No-Edge of UL Intra-eNodeB CoMP: Improve 10% Cell Edge UL Throughput UL CoMP w/t Co-demodulation & Interference

Benefits*

Rejection No CoMP

Intra-eNB CoMP

Intra-eNB CoMP Legend

• •

Gain for UE1: Co-demodulated. Gain for UE2: Interference (UE1) Rejection.

Throughput (Mbps)

Without CoMP

7% Increase

With CoMP

10% Increase

Cell Average Throughput.

Cell Edge Throughput

* Simulation assumption: 10MHz, 2-Sector CoMP

UL Intra-eNB, Improve User throughput with software upgrade only HUAWEI TECHNOLOGIES CO., LTD.

Page 17

LTE Feature

Carrier Aggregation(CA) 2.6G CC1

LTE-A UE

LTE-A UE

2.6G CC2

2.6G CC2

Inter-band CA

Intra-band CA

up to 300Mbps@2*2MIMO CC2

LTE-A UE

CC1

800M CC1

Scenario: • Intra-band CA (2CC) : 2.6G, 1.8G • Inter-band CA(2CC): 2.6G+1.8G, 2.6G+800M, 1.8G+800M, 700M+AWS • Up to 40MHz total bandwidth Benefit: • Up to 300Mbps per UE CAT6 (DL 300 / UL 50Mbps @ 2x2 MIMO) • Fast load balance between the two LTE carriers Dependency: • R10 UE need to support CA. • Require LBBPc/LBBPd + LBBPd to support 2CC • Intra-band CA requires that the time deviation between the RF channels of different CC less than 130 ns.

LTE UE

HUAWEI TECHNOLOGIES CO., LTD.

Page 18

Contents Spectrum usage for Claro LTE in a SRAN perspective Interworking

HUAWEI TECHNOLOGIES CO., LTD.

Page 21

Interworking Solution Interworking Strategy

Interworking Detail Features

RAT Priority Definition

Standard Interworking Function

Camping Strategy

Camping

Handover Strategy

Customized Priority Definition based on SPID Connected Mobility Handover Process CSFB

HUAWEI TECHNOLOGIES CO., LTD.

Page 22

GUL Interworking Priority Strategy – Claro Peru MLB based HO 4

LTE 2100 (20Mx2)

3

UMTS 1900

2

UMTS 850 GU same as before

Low

0/1 Priority Order

Camping Strategy When Idle Better spectral efficiency (LTE - UMTS - GSM ), higher priority

GSM 850/1900

Coverage based HO

High

Strategy When Connected Load balancing between LTE AWS and 700 Load balancing between LTE and UMTS

Higher frequency point, Higher priority

HUAWEI TECHNOLOGIES CO., LTD.

Page 23

Idle Mobile Distribution Strategy Cell Priority

Suggested strategies, UE Individual Priority



System Priority 

Coverage 

Coverage (Better Cell) 



GSM/UMTS

FDD/GSM/UMTS FDD/GSM/UMTS Multi Mode UE UL sensitive UE

GSM/UMTS Handset

Voice centric Multi Mode UE

FDD/GSM/UMTS Multi Mode UE

To provide better service experience for subscriber.

LTE/GSM/UMTS Multi Mode UE Out of LTE coverage

eNodeB/BTS

HUAWEI TECHNOLOGIES CO., LTD.

To let UE stay in the service area

UE Individual Priority based on SPID 

LTE FDD

To better serve 4G-preferred UE and offload traffic from 3G

Page 24

Handover categories Load balance

Coverage

Based on the radio link quality

UL Quality

√ X

Based on the RB utilization Service

Based on the service

Based on UL Quality

Distance Coverage based is recommended by default at initial stage Load based is useful when LTE traffic significantly increased Service based is for better utilization of each radio technologies

Distance and UL quality is to manage sub optimal cases

Based on the distance

Flexible Mobility Strategy Satisfies Different Scenarios HUAWEI TECHNOLOGIES CO., LTD.

Page 25

Interworking Solution Interworking Strategy

Interworking Detail Features

RAT Priority Definition

Standard Interworking Function

Camping Strategy

Camping

Handover Strategy

Customized Priority Definition based on SPID Connected Mobility Handover Process CSFB

HUAWEI TECHNOLOGIES CO., LTD.

Page 26

LTE TDD/FDD/GSM/UMTS Interworking Standard Function Cell Selection RRC_IDLE

Cell Reselection PS HO CCO/NACC

Data Service Continuity

Redirection

RRC_CONNECTED CS FallBack

Voice Service Continuity

SRVCC Dual Radio UE

Huawei Support All feature of Interworking HUAWEI TECHNOLOGIES CO., LTD.

Page 27

UE Switch ON — PLMN/Cell Initial Selection PLMN Select When UE Switch On Last RPLMN

Stored in UE

HPLMN or EHPLMN select

Set in SIM

HPLMN & EHPLMN

Set in UE

Set in SIM Suggested PLMN List in SIM card: PLMN + E-UTRAN PLMN + UTRAN PLMN + GSM

User Controlled PLMN Selector with Access Technology” Operator Controlled PLMN Selector with Access Technology”

The Timer of HPLMN Reselection is Saved in SIM Card (no less 6 min)

The PLMN of Better Wireless Quality

Other PLMN Base On Wireless Quality

Customized PLMN/Frequency List in SIM card, UE Prefers to Camp on LTE Network HUAWEI TECHNOLOGIES CO., LTD.

Page 28

Camping — Reselection to Higher Priority Cell GSM, UMTS, FDD cells broadcast same priority list in SIB

 LTE FDD (Higher) SI B

UE reads SIB and get neighbor list, priority, and cell reselection parameters

 GSM/UMTS (Low) SI B

Suggested RAT Priority:  LTE FDD (Higher)  GSM/UMTS (Low)

UE measures signal strength of higher priority neighbor cells

Reselection happens when RF condition is fulfilled. UE camps on LTE FDD

HUAWEI TECHNOLOGIES CO., LTD.

Page 29

LBFD-00201803 Cell Selection and Rese

Idle Mobility — Reselection to Better Cell Cell Reselection Principal S-eNB is worse than Thresh_serving.low & T-BTS is better than Thresh_x.low

FDD 1800

Cell Reselection

FDD 800

High Prio. eNodeB

T-eNB is better than Thresh_x.high

Low Prio. eNodeB/BTS

UMTS/GSM Low Prio. -> High Prio. Happens when UE enters Higher Priority Cell High Prio. -> Low Prio. Happens when UE moves out of Higher Priority Cell

UEs camp on Cell which providing best service

HUAWEI TECHNOLOGIES CO., LTD.

Cell Reselection From High -> Low

Cell Reselection From Low > High Page 30

LOFD-00105401 Camp & Handover Based on

Customized: UE Individual Priority based on SPID S6a （SPID) HSS Subscriber Profile ID

HSS: Set User SPID info & tell eNodeB via MME eNodeB send UE Individual priority

MME S1-MME （SPID)

on SPID

Cell reselection Info

Cell reselection Info

GSM Priority 5

in RRCConnectionRelease based

FDD Priority 5 TDD Priority 4

eNodeB

UMTS Priority 4

UMTS Priority 3

TDD Priority 3

GSM Priority 2

Cell reselection Info

TDD Priority 5 FDD Priority 4

FDD Priority 2

UMTS Priority 3 GSM Priority 2

Voice centric dual-Mode UE

UL sensitive UE

Data centric dual-Mode UE

Data centric UE: eNB not send individual priority to UE, common priority in SIB works, then UE prefer camping on LTE TDD Voice centric UE: eNB send UE individual priority message which gives GSM higher priority than LTE, then individual cell reselection priority overwrite common priority, UE prefer camping on GSM UL sensitive UE: eNB send UE individual priority message which gives LTE FDD higher priority than LTE TDD, then individual cell reselection priority will overwrite common priority and UE prefers camping on LTE FDD

Voice Centric UE Prefers GSM/UMTS & Data Centric UE Prefers LTE TDD/FDD HUAWEI TECHNOLOGIES CO., LTD.

Page 31

Connected Mobility Scheme: Redirection/PS Handover/CCO/NACC To GSM： PS HO > CCO/NACC > Redirection

LOFD-001019 PS Inter-RAT Mobility between E-UTRAN and LOFD-001020 PS Inter-RAT Mobility between E-UTRAN and

To UMTS: PS HO > Redirection

eNodeB

GSM

LTE FDD

UMTS

Proper Interworking Policy is Chosen based on UE Capability HUAWEI TECHNOLOGIES CO., LTD.

Page 32

LBFD-00201801 Coverage Based Intra-frequency Handover LBFD-00201802 Coverage Based Inter-frequency Handover LOFD-001019 PS Inter-RAT Mobility between E-UTRAN and WRFD-020126 Mobility Between UMTS and LTE

Coverage-based Handover Moves to neighbor LTE FDD cell

Threshold of trigger Interfreq HO (IF A2) is higher

Moves out of LTE coverage LTE FDD

than threshold of trigger

Inter-RAT HO (IR A2),

LTE FDD 700

AWS

which means that interfreq HO is triggered earlier

Inter-RAT

than inter-RAT HO.

Inter-Frequency UMTS

Moves to LTE coverage

If UE under UMTS move to LTE coverage, there are two options: 1. Service is still provided by UMTS. When service ends, UE will camp on LTE network by cell reselection 2. UMTS triggers Inter-RAT handover to LTE

Using different event threshold to decide handover target Handover Priority: Intra-frequency > inter-frequency , Intra-RAT > inter-RAT

HUAWEI TECHNOLOGIES CO., LTD.

Page 33

Load Balancing based Handover Huawei provide the seamless synergy among multiple layer of the network

LOFD-001032 Intra-LTE Load Balancing LOFD-001044 Inter-RAT Load Sharing to UTRAN LOFD-001045 Inter-RAT Load Sharing to GERAN WRFD-020306 Inter-RAT Handover Based on Load WRFD-070004 Load Based GSM and UMTS Handover Enhancement Based on Iur-g WRFD-070006 GSM and UMTS Load Balancing Based on Iur-g

High

Trigger redirection directly Trigger inter-RAT HO Trigger inter-freq HO

Offload within FDD (intra-freq HO)

Trigger intra-freq HO According to cell load (PRB utilization ratio)

LTE FDD AWS

Offload between FDD/UMTS (inter-RAT HO)

Exchange load info via RIM Procedure

UMTS 850/1900

Offload between UMTS/GSM (inter-RAT HO) GSM 850/1900

HUAWEI TECHNOLOGIES CO., LTD.

Iur-g

Low

Load

Load balance is optimal when traffic significantly increasing Steering the newly-access subscriber to low-load network. Leverage the load among LTE/UMTS network. Make full use of LTE/UMTS network resource.

Page 34

LBFD-00201802 Coverage Based Inter-frequency Ha

UL Quality based Handover

√ X

Scenario: DL quality is good, but UL quality is limited, which result to poor service experience Principle: When UL IBLER is higher than threshold, trigger handover to a better neighbor cell

HO

Improve Edge User Experience in Interference or UL-Limited Scenario HUAWEI TECHNOLOGIES CO., LTD.

Page 35

Win Together

HUAWEI TECHNOLOGIES CO., LTD.

Page 36