DC-HSDPA V0.5

DC-HSDPA solution for Entel

Entel ZTE

DC-HSDPA Introduction

ZTE DC-HSDPA Solution

DC-HSDPA Test Plan

Agenda

HSPA+ Evolution Paths for Downlink

Current networkEasy to updatepropose to do

The future pathThe future path

MCMIMO

DBHSDPA

DC64QAM

64QAM

R10

R9

R8

R7

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Title:Type: Arial Size： 30-32ptColor： The theme blue

Text (1-5 Level):Type： ArialSize： 28~12ptColor： Black

© ZTE Corporation. All rights reserved.

DC-HSDPA Evolution

Two Adjacent Carriers on the Same Band

F1 F2

5MHz 5MHz

Two Carriers on Two Bands

B1-F1 B2-F2

5MHz 5MHz

… …

R8 R9*&R10*

R7

16QAM & 64QAM Dual-Cell HSDPADual-Band Dual-Cell HSDPA

MC HSDPA

16QAM & 64QAM were introduced in 3GPP R5 & R7 which enables HSDPA peak rate up to 14 & 21 Mbps respectively.

Downlink theoretical peak rate up to 28 Mbps with DC + 16QAM;

Downlink theoretical peak rate up to 42 Mbps with DC + 64QAM.

DB DC HSDPA Phase I(R9) (band combination)

I+V I +VIII II + IV

DB DC HSDPA New Band(R10*) Band combination, the same

as DB DC HSDPA

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UE Category: 21 22 23 24


DPD

CH\D

PCCH

F-D

PCCH

HS-

PDSC

H

HS-

SCCH

HS-

SCCH

HS-

PDSC

H

DPD

CH/D

PCCH

HS-D

PCCH

E-DPD

CH/E-D

PCCH

UL Carrier

DLAnchor Carrier

DLSupplementary Carrier

PrimaryHS-DSCH Serving Cell

SecondaryHS-DSCH Serving Cell

DC-HSDPA, deploy the second carrier to make efficient use of spectrum by operating HSPA on two adjacent 5MHz carriers in a coordinated way.

Due to scheduling gains, higher data rates are achievable for users experiencing low and moderate SNR.

Downlink Channel

HS-PDSCH carry user data on both of carriers if DC is activated.

Activation of DC via HS-SCCH only on primary carrier, deactivation via HS-SCCH on either carrier.

Uplink Channel

Common HS-DPCCH is only on primary carrier.

CQI, ACK&NACK of both anchor and supplementary carrier are transmitted on the same HS-DPCCH.

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Items DA-HSDPA

Bandwidth Requirement Adjacent 10MHz

RF Requirement Single PA

Upgrade Software only

Impact on Legacy UE No

Conclusion 1, DC-HSDPA bring higher throughput on user level with enables better customer experiences;2, DC-HSDPA with 64QAM will be proposed to operators who own 2 or more than 2 adjacent carriers.

DC-HSDPA Technical Features

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Other Multiple Carriers HSPA Technologies

3GPP R9, UE can transmit HSUPA data on two carriers, Maximum throughput is 23Mbps. The two carriers should be adjacent. At least DL two carriers to be configured simultaneously

3GPP R9, primary & secondary carrier can be in different band, Maximum throughput is 42 MbpsRestriction of band combination

HSPA technology enhancement, will be freezing in 3GPP R10 DL HSDPA：

Max. 3~4 carriers Can belong to two band (band combination

specified) Carriers in one band should be adjacent Carriers should belong to one Node B MIMO can be used/not used on each carrier

UL HSUPA: up to two carriers

1800M Frequency 1

1800M Frequency 2

2.1G Frequency 1

2.1G Frequency 2

An example configuration

DC HSUPA

DB HSPA

Multi-Carriers HSPA



DC-HSDPA Test Plan

Agenda

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Flexible Dual Cell cluster deployment Based on traffic, operational strategy

Mobility Management

Primary Serve Cell Selection Strategy

Dual cell cluster

Dual cell cluster Cell 1Cell 1

Cell 2Cell 2Primary Serve Cell

Secondary Serve Cell

“HSDPA preferred cell” as Primary Cell

• Dual-cell pair by static configuration• Default primary cell selection on “HSDPA preferred cell”• Load balance. If HSDPA cell overloaded, then DC UE will select the other cell

as primary cell• Among DC-enabled cells• DC-enabled cells & legacy cells• UE only transmit measurement report in

primary cell

1 2

3

Cell 1Cell 2Cell 2



Cell 4Cell 4



Cell 6

Cell 7DC Disabled Cell

DC Disabled Cell

handoverhandover handover

stop BandwidthRe-assigned

Dual-Cell HSDPA Network Deployment

DC UE Legacy UE (SC)

Only HS-PDSCH & HS-SCCH

As Normal Cell

As Normal Cell As Normal Cell

F2

F1

No Impact on Legacy UE 4

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Smooth Upgrade to DC-HSDPA

HSPA+ 64QAM HSPA+ (64QAM)+DC

SW upgrade only to support DC-HSDPA

No change for Core, but should be R7 or above to support MBR 42MBps.

Required Feature: DC-HSDPA (New purchase according to cell quantity);

Associated feature: DL L2 enhancement (Already owned)

HSDPA Introduction Package (Already owned)

HSUPA Introduction Package (Already owned)

SW Upgrade Only

Low TCO, High Performance

BS8700

R8860E

B8200 B8200

R8860E

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DC-HSDPA Impact Analysis

Air interface resource scheduling: for DC user, applying joint schedule ; for SC user, keeping the same schedule strategy as HSPA.

Transmission dimensioning principle keep the same as HSPDA.For sites need to provide DL peak rate experience, suggest to extend the bandwidth to 50M on Iub.

No impact on CE consuming for DC-HSDPA

No impact on RNC hardware dimension principle.

Air Interface

Base Band RNC Hardware

Transmission

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ZTE HSPA+ Terminals Status

Other data card suppliers for HSPA+ :Sierra wireless, ST-Ericsson, BandRich, Picochip, Flycard, Huawei



DC-HSDPA Test Plan

Agenda

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Tran

smis

sion

band

wid

thfrequency

UE

Software&license

RNC&NodeB

DC-HSDPA Basic Condition

DCAt least 50M 100M is better

Adjacent 10MSupport R8, Category: 21 22 23 24

SDR, OK

update softwarePurchase license

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Basic Technology

Uplink cell

Primary Serve cell

secondary cell

HSDP

A ch

anne

l onl

y

Full capability cell

Rel-8

Adjacent frequency

Time synchronization

DC UE1

Rel-8

DC UE2

SC UE1SC UE2

Primary Serve cell

secondary cell

service cell service cell

HSDPA channel onlyFu

ll cap

abilit

y cel

lUp

link

cell

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DC Test Procedure

Step 4

Step 3

Step 2

Step 1 • Confirming UE support DC

• Confirming NodeB support DC

• Confirming DC service is active

• Speeding reach the target value

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Step 1 - Confirming UE support DCRrcconnectionrequest message:accessStratumReleaseIndicator = rel_8 or above

rrcconnectionrequest message: multiCellSupport = true

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Step 2 - Confirming NodeB support DC

multi_Cell_Capability = TNBAP_multi_Cell_CapableSecondary_Serving_Cell_List.elem[0].local_Cell_ID = XXX

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Step 3 - Confirming DC service is active

IUB -> RadioLink ReconfigurationPrepareFDDMsg:additional_HS_Cell_Information_RL_Reconf_Prep Present = 1

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Step 4 - Speed reach the target value(LAB)

35Mbps

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DC network construction strategy

Constructing one Experimental DC cell in LaboratoryConstructing one Experimental DC cell in Laboratory

Constructing one commercial DC siteConstructing one commercial DC site

Constructing commercial DC sites based on ZTE UMTS sites3

1

2


Thanks!

DC-HSDPA V0.5

Documents

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