LTE-Huawei

www.huawei.com

35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

6FHQDULR8UEDQDUHDVPDOO,6 ,QWHU 6LWHLVWDQFHVLWHV

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

7.2~8.8dB gain in 4Rx


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

* Simulation assumption: 10MHz, 2-Sector CoMP

Th

rough

put (M

bps)

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

Contents

Spectrum usage for Claro

LTE in a SRAN perspective

Interworking


35pt

: R153 G0 B0

:

LT Medium

: Arial

32pt

: R153 G0 B0

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

GUL Interworking Priority Strategy n 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)

Cove

rage ba

sed 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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

UE Switch ON o PLMN/Cell Initial Selection

Last RPLMN

HPLMN & EHPLMN

User Controlled PLMN Selector with Access 7HFKQRORJ\

Operator Controlled PLMN Selector with Access 7HFKQRORJ\

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

Camping o Reselection to Higher Priority Cell

GSM/UMTS (Low )

LTE FDD (Higher )

SIB

SIB

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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 o 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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

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

22pt

) :18pt

:

LT Regular

: Arial

20pt

):18pt

Win Together

Documents

LTE-Huawei