CJK-IMT28-027
Studies on Indoor/Hotspot
Mobile Data Solutions
Qin Fei
(qinfei@catt.cn)
CJK IMT #28
Xi’an, China
June, 2nd-3rd , 2011
1
Content
Background
Activities
Solutions and Plan
2
Background-Requirement
 1000x of mobile broadband data traffic in 10 years, 80% indoor/hotspot.
 Economical, High throughput and bit rate, Good user experience.
 Mobile(for Outdoor) + Local/Nomadic(for Indoor/Hotspot) solutions, in one
SDO and industry alliance.
3
Background-Future RAT
4G+
Higher SE
wider bandwidth
• Mobile
• Local/Nomadic Access
4G
Economical solution
high performance-price ratio
3G
2G
High mobility
Specific
scenario
Specific
service
Indoor
scenario
IP based data
Various QoS
Large coverage
4
Future network will be organic integration of cellular
mobile network and hotspot coverage
4
Background-Indoor/Hotspot Scenarios
•
Low mobility/nomadic
High bit rates/Large volume
IP data dominate
Short coverage/high density
Stable/rich scattering
•
Requirement
•
Low cost

Local/Nomadic Access

Optimized
RF/PHY/MAC
High performance

Extended band

PHY/MAC
enhancement for
indoor
Good UE experience

Tight Interworking with
mobile

Service Continuity

Long battery life
5
Content
Background
Activities
Solutions and Plan
6
Activates

Initiated by MIIT since 2010.06

Technical discussion and studies began in 2010.12


tens of face to face meeting,

Leading by CATR,

CATT, CMCC, Huawei, ZTE, INNOFIDEI, China Unicom, China Telecom
Extended in IMT-Advanced Promotion Group

16 entities included: Government academy, Operators, Manufactures, Colleges.

Will be studied in the Requirement, Technologies and Standard group.
7
Activates

Government Project Planning



CATR, CATT(Datang), CMCC, Huawei, ZTE, INNOFIDEI, Peking University, BUPT
Workshop with ERICSSON and Common Understanding





“Enhancement Technologies for Indoor/Hotspot based on LTE-A”, 2012-2013 National
Science and Technology Major Project Lead by MOST and MIIT.
It is important to ensure that radio-access technologies in 3GPP can operate efficiently
in local-area/low-mobility scenarios
LTE evolution for the low-mobility/local-area scenario
The operation on licensed spectrum with operators is necessary and has first priority .
As low priority, consider it can work on unlicensed spectrum as complement.
For deployment or usage scenario, focus on operator deployment.
Workshop with Nokia/NSN and Common Understanding

Common understanding with the scenarios and requirement.

Standard development in 3GPP
8
Content
Background
Activities
Solutions and Plan
9
Solutions and Plan

Extended Spectrum Bands

1000 times of traffic can not be reached only be technical enhancement

Spectrum suitable for mobile is limited(<3GHz)

Indoor/Hotspot dominate the 80% of 1000

Short coverage/Low mobility requirement


Wide bandwidth/High throughput requirement
Avoid outdoor-indoor interference, easy to deployment and good performance
Extended band from cellular network to high spectrum band(>3GHz)
10
Solutions and Plan

LTE/LTE-A Based Local Area Access
OAM
Internet
Wx/D’/Gr/Dw
Swa
Gateway
HSS/HLR
(CDMA2000,WCDMA,TD)
AAA Server
Wo/Wf
Il
LTE-LAN AP
Online/Offline CS
LTE-LAN UE
11
Solutions and Plan

LTE/LTE-A Femto Enhancement
Operator's
IP service
HSS/HLR
MME
P-GW
S-GW
LIPA
LTE LAN AP
Internet
Signalling
LTE LAN AP
User data
LTE LAN
UE
LTE LAN
UE
LTE LAN
UE
12
Solutions and Plan

Others

New/Optimized PHY/MAC design for Indoor/Hotspot scenarios

Simplified RF design for cost efficient

Wide bandwidth for high speed

QoS enhancement for high speed data

L2 Optimize for data services

…
13
Solutions and Plan
M.1036
3.4-3.6GHz
IMT.Update
WRC-12 WI
New bands >3GHz
WRC-15/16
14
Solutions and Plan
PCG
System
requirement
SA2
SA
SA1
‐Scenario
‐requirement
Requirement
Definition
（2011.8~ 2012.Q3）
RAN1
PHY
RAN2
Protocol
RAN3
Interface
RAN4
RF
RAN
Setup Item
System
architecture
R12
……
System
Design
（SI&WI）
（2012.Q3 ~ ）
15
Thank You!
16