lte-huawei claro

www.huawei.com

35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Security Level:

HUAWEI TECHNOLOGIES CO., LTD.

LTE for Claro

Jan Berglund

Wireless Marketing Director


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Contents

Spectrum usage for Claro

LTE in a SRAN perspective

Interworking


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Proposed Claro spectrum layout

LTE Data Overlay

Smartphone

Capacity

Voice Coverage

850MHz: 5 +5 MHz UMTS

2013 2014 2015

U850

Smartphone

Coverage

Voice Capacity

Page 3

2015

1900MHz: 17.5MHz GSM -> 5+5U + 7.5G

850MHz: 2.5MHz GSM G850

Indoor coverage layer

3G Coverage Layer

Legacy voice capacity layer and new data capacity

AWS B4: 20MHz – Urban LTE Capacity

LTE Capacity Layer

LTE AWS

G1900 GU1900

APT700 : X MHz – LTE Coverage LTE

APT700


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Contents



Interworking


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

SingleRAN Broad Hardware Pipe

Solution


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Concurrent

BBP

SingleBBU and CloudBB Evolution

WBBP LBBP

GTMU UMPT( U) UMPT( L)

WBBP LBBP

UMPT( GUL)

UBBP(GUL)

UMPT(GUL)

General Hardware

• 5B3M in One BBU

• From MPT Concurrent to BBP Concurrent

SingleBBU, not Just Co-BBU

SRAN8.0 Near Future Before

Concurrent

MPT

Separated

MPT

Evolve to CloudBB Step by Step

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

Centralized maintenance

Pool for capacity gain and sharing

Open API

CloudBB

Cloud BB

Coming Near Future SRAN8.0

BBU Pooling BBU Stack

• BBU Capability Double Every Year

• BBU Architecture Evolution Matching BBU Growth

BBU RF Cabinet Controller


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

L U G

SingleBBU Architecture from SRAN8.0

WBBP LBBP GTMU

WMPT LMPT

SingleRAN

Dedicated

HW for each

RAT

Separate

OAM

interface

SingleRAN

in OSS

UMPT GUL Concurrent , Making Separated G/U/L OM to SingleOM

GUL

WBBP LBBP GBBP

UMPT Common

HW for

each RAT

Single OAM

interface

SingleOM

in OSS

GUL

SingleRAN


SRAN8.0 SRAN 6.0/SRAN7.0

G U L


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

SingleRAN Common BBU Benifits Single Operation

SingleRAN 3 brains(~2013)

SingleRAN 1 brain (2013~)

LTE UMTS GSM

Common Hardware

LTE UMTS GSM

Common Hardware

From One Team to One Knowledge

0

2

4

6

UMTS LTE GSM SingleRAN(With SingleOM)

Common part (iRAT part) Common part (Single RAT) RAT related

0

0.2

0.4

0.6

0.8

1

NodeB eNodeB GBTS SingleRAN( with SingleOM)

-40%

0

1

2

3

4

NodeB eNodeB GBTS SingleRAN(with SingleOM)

-40% Integration Parameters (x1000)

MML Commands (x1000)

-80%

Common Hardware test instance


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

UMPT Evolution and Specification

UMPT Specification & Capacity

Before Now

• G: 60 TRX(IP)

• U: 170 CNBAP/s

• L: 30 CAPs

• G: 72 TRX; U: 1500 CNBAPs

• L: 120 CAPs

• GUL(Typical Concurrent ):

18 TRX+1000CNBAPS+30CAPS

In-house Chipset

4E1/T1 2FE/GE

UMPT Evolution

SRAN7.0 SRAN8.0

Same Hardware for UMTS and LTE

Hardware Ready for

GUL Concurrent

evolution

GUL Concurrent

Dynamically

Signaling Sharing



35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Blade RRU

Unique Seamless Assembly Smallest & Fastest Best-in-class RF Performance

One Box Multi-band, Multi-RAT and

Multi-sector Scalability

12L/14KG Industry’s most lightweight macro RRU, three modules installed under 5 minutes

Up to10W/L Power Density

Up to 60MHz IBW

30% Less Power Consumption

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

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

Scenario 1: Band X Sector 1

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



35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

50% Highest Power Efficiency

Dielectric duplexer

One Chip for

All Digital Functions

Decrease 30% Power Consumption

ONE Box Assembly

12L/14KG Industry Highest Integration

Super Slim Fin

Die-Casting for ultra

high efficiency heat sink

Chimney channel

Fresh Air

Compensation

Blade RRU Flexible Installation

36L

66% Box saved per site

50% Workload saved for cable

50% Wind resistance reduction

12 Cables

2 Boxes

4 Cables

6 Boxes

Blade RRU Flexible Expansion

Band X + Y

or

Sector 1 + 2

or

4 x 4 MIMO

Band X + Y + Z

or

Sector 1 + 2 + 3

12L 24L 36L

Blade RRU Clean Site

Software Defined Equipment


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Best-in-class RF Performance

DPD+Doherty DPD+A DHT

DPD+A DHT/

Y-Power 40%

45%

50%

Blade RRU

Up to 10W/L , Power integration doubled

10% PA efficiency Improved, 13.5% Power saved

IBW

25M

60M

RRU3838

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

2×60W@24L 2×60W@12L

10W/L

5W/L Blade RRU Blade RRU

370W 320W 13.5%

Instantaneous Bandwidth Power Density

PA Efficiency

Software Defined Equipment


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Blade RRU Portfolio

3824 1T2R

1x60W

3838 2T2R

2x40W 3826 1T2R

1x80W

3832 2T4R

2x60W

3832 2T4R

2x60W

3938 2T2R

2x40W

3268 2T2R

2x40W

900M/ 1800M

2.1G

2.6G

APT700

AWS

2012 Q3 2012 Q4 2013 Q1 2013 Q2 2013 Q3 2013 Q4

2012 2013

3936 1T2R

1x80W

Note: 850/1900 under planning

Blade RRU (2.1G) available for rollout in Q3, 2012

Blade RRU portfolio will cover all mainstream bands by 2013

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


3260 2T4R

2x40W

3268 2T2R

2x40W


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Uplink 4Rx achieve 60% capacity gain

With 4 antennas per

sector for receiving

UL 4-Antenna Receive Diversity

Cell Average Throughput

2Rx

4Rx

60%

Increase

2Rx 4Rx -> In operator X Commercial trial network,2012



35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Uplink Shared Channel IRC Shared Channel IRC vs. MRC

PUSCH IRC

2.4~3.7dB gain in 2Rx


9.55% increase UL Cell average Throughput (1X2

MMSE-IRC compared with MMSE-MRC )

Support of adaptive switch between MRC and IRC

Uplink Shared Channel (PUSCH) IRC

Interfering cell Victim cell

UEs Interfering on PUSCH

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

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

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

Users dropped evenly across the cell

dBA

AA

mdB

m

dB

20deg,70

,12min

1

2

1


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Uplink Control Channel IRC

20-40% increase in UL control channel coverage

Improve network access success rate

Support of adaptive switch between MRC and IRC

Uplink Control Channel (PUCCH/PRACH) IRC

Interfering cell Victim cell

UEs Interfering on PRACH and PUCCH

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

Control Channel IRC vs. MRC

PUCCH IRC

Format1x 1dB gain in 2Rx

Format2x 0.5dB gain in 2Rx

Format1x 2dB gain in 4Rx

Format2x 0.7dB gain in 4Rx

PRACH IRC

4~4.8dB gain in 2Rx



35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

No-Edge of UL Intra-eNodeB CoMP: Improve 10% Cell Edge UL Throughput

* Simulation assumption: 10MHz, 2-Sector CoMP

T

hro

ugh

pu

t (M

bp

s)

Cell Average

Throughput.

Cell Edge

Throughput

7% Increase With CoMP

Without CoMP

10% Increase

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

UL CoMP w/t Co-demodulation & Interference

Rejection

Benefits*

UL Intra-eNB, Improve User throughput with software upgrade only

No CoMP

Intra-eNB CoMP

Intra-eNB CoMP Legend

LTE Feature


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Carrier Aggregation(CA)

LTE-A UE

LTE UE

CC1

up to 300Mbps@2*2MIMO

CC2

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.

2.6G CC1

2.6G CC2 LTE-A UE

Intra-band CA

800M CC1 2.6G CC2

LTE-A UE

Inter-band CA

LTE Feature


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Contents



Interworking


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Interworking Solution

Interworking Strategy Interworking Detail Features

RAT Priority Definition

Camping Strategy

Handover Strategy

Standard Interworking Function

Camping

Customized Priority Definition based

on SPID

Connected Mobility

Handover Process

CSFB


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

GUL Interworking Priority Strategy – Claro Peru

Better spectral efficiency (LTE - UMTS - GSM ),

higher priority

Higher frequency point, Higher priority

Camping Strategy When Idle

Strategy When Connected

Load balancing between LTE AWS and 700

Load balancing between LTE and UMTS

GSM 850/1900

UMTS 850

UMTS 1900

LTE 2100 (20Mx2)

Co

ve

rag

e b

as

ed

HO

MLB based HO High

Priority Order

Low 0/1

2

3

4

GU same as before


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Idle Mobile Distribution Strategy

eNodeB/BTS

FDD/GSM/UMTS

Multi Mode UE

FDD/GSM/UMTS

Multi Mode UE

GSM/UMTS Handset LTE/GSM/UMTS Multi Mode UE

Out of LTE coverage

FDD/GSM/UMTS

UL sensitive UE

Voice centric

Multi Mode UE

LTE FDD

GSM/UMTS

Cell

Priority

UE

Individual

Priority Coverage

Suggested strategies,

System Priority

To better serve 4G-preferred UE

and offload traffic from 3G

Coverage (Better Cell)

To let UE stay in the service area

UE Individual Priority based on SPID

To provide better service

experience for subscriber.


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Handover categories

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

Flexible Mobility Strategy Satisfies Different Scenarios

Based on the radio link quality

Load balance

Based on the RB utilization

Service

Based on the service Based on UL Quality

√

X

UL Quality

Coverage

Distance

Based on the distance


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Interworking Solution

Interworking Strategy

RAT Priority Definition

Camping Strategy

Handover Strategy

Standard Interworking Function

Camping

Customized Priority Definition based

on SPID

Connected Mobility

Handover Process

CSFB

Interworking Detail Features


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

LTE TDD/FDD/GSM/UMTS Interworking Standard Function

RRC_IDLE

RRC_CONNECTED

Cell Selection

Cell Reselection

Data Service Continuity

Voice Service Continuity

CS FallBack

Dual Radio UE

Redirection

Huawei Support All feature of Interworking

CCO/NACC

SRVCC

PS HO


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

UE Switch ON — PLMN/Cell Initial Selection

Last RPLMN

HPLMN & EHPLMN

User Controlled PLMN Selector

with Access Technology”

Operator Controlled PLMN Selector

with Access Technology”

The PLMN of Better Wireless Quality

Other PLMN Base On Wireless Quality

PLMN Select When UE Switch On

HPLMN or EHPLMN select

Stored in UE

Set in SIM

Set in SIM

Set in UE

Suggested PLMN List in SIM card:

PLMN + E-UTRAN

PLMN + UTRAN

PLMN + GSM

Customized PLMN/Frequency List in SIM card, UE Prefers to Camp on LTE Network

The Timer of HPLMN

Reselection is Saved in SIM

Card (no less 6 min)


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Camping — Reselection to Higher Priority Cell

GSM/UMTS (Low)

LTE FDD (Higher)

SI

B

SI

B

Suggested RAT Priority:

LTE FDD (Higher)

GSM/UMTS (Low)

GSM, UMTS, FDD cells

broadcast same priority list

in SIB

UE reads SIB and get

neighbor list, priority, and

cell reselection parameters

UE measures signal

strength of higher priority

neighbor cells

Reselection happens when

RF condition is fulfilled. UE

camps on LTE FDD


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Low Prio.

eNodeB/BTS

High Prio.

eNodeB

S-eNB is worse than Thresh_serving.low & T-BTS is

better than Thresh_x.low

T-eNB is better than Thresh_x.high

Cell Reselection From High -> Low Cell Reselection From Low > High

Cell Reselection

Idle Mobility — Reselection to Better Cell

Cell Reselection Principal

FDD 1800

FDD 800

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

LBFD-00201803 Cell Selection and Reselection


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Customized: UE Individual Priority based on SPID

MME

eNodeB

S1-MME

（SPID)

GSM Priority 5

UMTS Priority 4

TDD Priority 3

FDD Priority 2

FDD Priority 5

TDD Priority 4

UMTS Priority 3

GSM Priority 2

Voice centric dual-Mode UE

Cell reselection

Info Cell reselection

Info

HSS

Data centric dual-Mode UE

eNodeB send UE Individual priority

in RRCConnectionRelease based

on SPID

S6a

（SPID)

TDD Priority 5

FDD Priority 4

UMTS Priority 3

GSM Priority 2

Cell reselection

Info

UL sensitive UE

HSS: Set User SPID info & tell eNodeB via

MME

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

Subscriber

Profile ID

Voice Centric UE Prefers GSM/UMTS & Data Centric UE Prefers LTE TDD/FDD

LOFD-00105401 Camp & Handover Based on SPID


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Connected Mobility Scheme:

Redirection/PS Handover/CCO/NACC

Proper Interworking Policy is Chosen based on UE Capability

LTE FDD

To UMTS:

PS HO > Redirection

eNodeB

To GSM：

PS HO > CCO/NACC > Redirection

GSM UMTS

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

LOFD-001020 PS Inter-RAT Mobility between E-UTRAN and GERAN


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Coverage-based Handover

Moves to neighbor

LTE FDD cell

Inter-Frequency

Using different event threshold to decide handover target

Handover Priority: Intra-frequency > inter-frequency , Intra-RAT > inter-RAT

Inter-RAT

LTE FDD

AWS

UMTS

Threshold of trigger Inter-

freq HO (IF A2) is higher

than threshold of trigger

Inter-RAT HO (IR A2),

which means that inter-

freq HO is triggered earlier

than inter-RAT HO.

Moves out of 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

Moves to LTE

coverage

LBFD-00201801 Coverage Based Intra-frequency Handover

LBFD-00201802 Coverage Based Inter-frequency Handover

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

WRFD-020126 Mobility Between UMTS and LTE

LTE FDD

700


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Load Balancing based Handover

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.

LTE FDD AWS

Offload within FDD

(intra-freq HO)

Exchange load info via

RIM Procedure

GSM 850/1900

Iur-g

UMTS 850/1900

Offload between FDD/UMTS

(inter-RAT HO)

Huawei provide the seamless

synergy among multiple layer of

the network

Load

Trigger intra-freq HO

Trigger inter-freq HO

Trigger inter-RAT HO

Trigger redirection

directly

Low

High

According to cell load

(PRB utilization ratio)

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

Offload between UMTS/GSM

(inter-RAT HO)


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

UL Quality based Handover

X

HO

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

√

Improve Edge User Experience in Interference or UL-Limited Scenario

LBFD-00201802 Coverage Based Inter-frequency Handover


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

黑体

22pt

) :18pt

黑色

:

LT Regular

: Arial

20pt

):18pt

黑色

细黑体

Win Together

lte-huawei claro

Engineering

huawei technologies

claro lte

lte coverage lte apt700

lte hardware ready

oss umpt gul concurrent

mpt concurrent

capacity gain

cobbu sran8