5G Technology Development in ITRI– Foxconn inFocus Handset (Qualcomm LTE Chipset) – ALU Handset...

5G Technology Development in ITRI

Pang-An Ting Division for Emerging Wireless Application Technology ICL/ITRI 2017/01/22

Copyright 2017 ITRI 工業技術研究院 3

Our Views on 5G R&D


Small cell

S-GW

P-GW

HSS (EPC)

MME

NFV-based iMEC GW

Internet

5G eMBB UDN system 5G mMTC system

Small cell GW

Local services

xHaul Manager

Our Views on 5G R&D Program

3 Key 5G systems

(1) eMBB UDN

(2) mMTC

(3) mmWAVE

Key sub-systems、elements、modules

– Small cell / SON/ UDN

– NB-IoT and its evolutions

– Intelligent Mobile Edge Computing (iMEC)

– Network Function Virtualization Infrastructure (NFVI)

– RF components / modules (sub-6GHz / above 6GHz)

5G mmWAVE system


EU-TW (Phase-II)

Enterprise

UDN prototype

5G R&D and Prototyping

2013 2015 2017 2020 2025

Rel 12 Rel 13 Rel 14 (5G SI)

Rel 16 (5G Enhanced)

Rel 15 (5G SI/WI)

2016 2014 2018 2019

Rel 17 (5G Enhanced)

5G Solution

Commercialization Pre-5G R&D R&D

Testing

TAIWAN

Timeline

…

1st Stage 2

nd Stage 3rd Stage

5G 發展時程與規劃

3GPP SEP B4G SEP Pre-5G / 5G SEP

Collaboration

EU-TW (Phase-I)

ICT-14 & METIS-II

Local SDO TAICS (Taiwan Information and Communication Standard)

Future Forum

E2E

PoC

Trial

system

A+ projects Commercialization

Phase-II : 5G Key tech + standardization (2017 ~ 2020)

Phase-I : Pre-5G Key tech (2014 ~ 2017)


ITRI Small Cell Technology Development

ITRI Develop Pre-Commercial Small Cell − ITRI L1 soft modem on DSP

− ITRI develop L2, L3 and system software on ARM

– IOT with

• Commercial EPCs

– NSN (CHT Lab)

– Cisco (ITRI Field Trial)

• Commercial Handsets

– iPhone 5 Handset (Qualcomm LTE Chipset)

– Foxconn inFocus Handset (Qualcomm LTE Chipset)

– ALU Handset (MTK LTE Chipset)

– HTC Handset (Qualcomm LTE Chipset)

• Commercial Dongles

– BandRich LTE Dongle (Qualcomm LTE Chipset)

Specification − Support 16-UE per TTI

− Support 5/10/15/20 MHz

− Support 2*20MHz CA, IRC, ICIC, eICIC

− Maximum Throughput : 212M/20M

− Output power : 24 dBm

− 4T4R, SU-MIMO, MU-MIMO

− SPS/DRX/HARQ

− Support LWA, LAA

− Operation Bands: B40, B42, B46

LTE-A Small Cell (1/4)

Small Cell Hardware

ITRI Small Cell Housing



Taiwan First 2*20MHz Carrier Aggregation Small Cell System Upgrade TD-LTE Throughput from 100 Mbps to 200 Mbps

2*20MHz CA and 64

Concurrent Active UEs

High Efficient Cross Carrier

Scheduling

2*20MHz carrier component

concurrently support primary cell

and secondary cell

64 active UEs can simultaneously

using carrier aggregation function

to upgrade the throughput of each

connection

Load balancing between two

carrier component

Max. System Throughput (TDD

Mode): 214 Mbps

2個20MHz Carrier Aggregation , Throughput 200 Mbps ITRI Small Cell與 HTC手機互通測試畫面

64個UEs連線服務ITRI Small Cell與 TM500手機模擬器互通測試畫面


ITRI LWA Small Cell Technology

ITRI/MTK Join Developing LTE/Wi-Fi

Aggregation(LWA) Technology

Joint development of ITRI and MTK

ITRI --- Small Cell

MTK --- Smart Phone

In parallel with 3GPP R13 LWA

standards development

Among Global Leading Group

Dynamic data rate adaptation for the

variation of channel quality

Performance

Up to 500 Mbps

LTE : Wi-Fi = 100 : 400 Mbps

Upgrade the throughput of LTE system from original 100 Mbps to 500 Mbps

eNB

UE

PDCP

Wi-Fi AP

RLC

MAC

PHY

MAC

PHY

Wi-Fi

Commercial Wi-Fi AP •802.11ac @ 5 GHz band •No SW/HW change

LWA Small Cell •LTE: TDD Band 40

LTE

PDCP

RLC

MAC

PHY New Control Messages - UE capability report with Wi-Fi MAC address

- LWA activation/deactivation - WLAN status report

- WLAN measurement report - PDCP packet count report

PDCP PDU encapsulated directly in Ethernet frame

(L2 bridging)

Cisco Gigabit Switch

LTE EPC Emulator & Downlink Traffic Generator

LWA UE (MT6795)

ITRI LWA

Small Cell

MTK LWA

Smart Phone

China Telecom Press Release 9/24 : Cooperation with MediaTek and ITRI to show 3GPP R13 LWA

Pioneer Technology technology



LAA Prototyping

10

LTE-A Small Cell (4/4) 與TM500對測，在Clean Channel狀

況下，DL Total Throughput 可達 222 Mbps


Dynamic smart antenna beam selection for capacity and

coverage optimization

Meeting Room

Corridor

Office

Hallway

Corridor Corridor

Meeting Room Office

Hallway

ITRI’s SON Server

Small Cell with Smart Antenna 104m

26m

Small Cell+SON Field Trial (1/3) Smart Antenna CCO測試場域建置：

• 51館5F建置6台具備Smart Antenna的UDCell Small Cell

Smart Antenna

Capacity and Coverage Optimization


Small Cell+SON Field Trial (2/3)

Smart Antenna CCO測試場域測試結果：

Before After

Average SINR (dB) -5.48109 12.701

Coverage 0.5548 1

Per cell average capacity (Mbps)

Theory value

45.7634 153.484

KPI：40% 平均SINR + 30%覆蓋率 + 30%平均系統容量

使用前使用後

(手動設定：六台UDcell，發射功率-30dBm + 五個方向全開)


Small Cell+SON Field Trial (3/3) Smart Antenna CCO測試場域測試結果：

Smart Antenna

Omni Smart Antenna

Average SINR (dB) 8.66767 12.701

Coverage 1 1

Per cell average capacity (Mbps)

Theory value

130.388 153.484

Omni

KPI：40% 平均SINR + 30%覆蓋率 + 30%平均系統容量

使用全向性天線 vs. 使用Smart Antenna佈建比較


Smart Antenna Based CCO 利用Smart Antenna的961種不同場型補強通訊涵蓋範圍內訊號不足之處, 搭配基地台發射功率

的調整可優化網路訊號品質與覆蓋率提升整體系統容量

把基因演算法應用在CCO機制上

− 基因演算法收斂速度快, 可在短間內找到接近最佳化的參數設定

− 因為有基因交配與突變之能力, 定期執行CCO可使整個網路具有時間越久效果越好之特性。

CCO啟用前: -5.4dB

1 2 3 4 BS

參數組合基因a

參數組合基因b

(Tx Power, Antenna Beam)

Omni Antenna CCO啟用後: 8.6dB

Smart Antenna CCO啟用後: 12.7dB


5G NR Splitting Between Central and Distributed Units

PDCPLow-

RLC

High-

MAC

Low-

MAC

High-

PHYLow-PHY

PDCPLow-

RLC

High-

MAC

Low-

MAC

High-

PHYLow-PHY

Option 5Option 4 Option 6 Option 7Option 2Option 1

RRC

RRC

RF

RF

Option 8

Data

Data

High-

RLC

High-

RLC

Option 3

3GPP TR 38.801-040

(2016.08)

3GPP is expected to study different functional splits between central and distributed units. (CU and DU)

Based on LTE protocols stacks. Pros & cons and benefit are capture in TR 38.801. By November RAN2 should update RAN3 on NR protocols stacks (possible joint

session) RP-161346 (RAN plenary, 2016.09)

15


Network MIMO Prototype System • 開發Network MIMO關鍵技術

– 支援 Virtualized Small Cell架構

– 16×8 Joint Transmission / Precoding技術

– 克服多基站時間、頻率、相位同步與通道時變等相關技術問題

◊ 基站間 CFO < 1ppb; 多用戶預編碼; 用戶間干擾 < -25dB

– System performance驗證目標設定

◊ 8 eNBs、8 UEs下，頻譜效率增加近8倍

• 已規劃於2017 MWC 進行Pre-5G Network MIMO系統展示

– LTE-A Virtualized Small Cell 架構

– Pre-5G Network MIMO system

◊ 8 ITRI Small Cells、8 commercial LTE UEs

◊ Joint Transmission / Precoding技術

◊ 8倍System Throughput Improvement

Network MIMO system


5G NR Parameters

Item Value

Channel Bandwidth 80MHz

Resource Bandwidth 72MHz

Subframe duration 1ms

Frame duration 10ms

CP length(overhead) Normal :7.03% (144/2048) Extended: FFS/25%(512/2048)

Sampling rate 122.88MHz(60k*2048)

Subcarrier spacing(kHz) 15 30 60 120 240 480

oversampling 32 16 8 4 2 1

FFT size 8192 4096 2048 1024 512 256

Symbol duration w/o

CP(samples) 65536 32768 16384 8192 4096 2048

CP duration (samples)

<sym0~6, sym0 in

0.5ms>

4608 2304 1152 576 288 144

5120 2816 1664 1088 800 656

# of used subcarriers 4800 2400 1200 600 300 144

# of PRBs 400 200 100 50 25 12


Data and Control Channel Coding of 5G NR

Agreement in RAN1#87: • UL eMBB data channels:

– Working Assumption to adopt flexible LDPC as the single channel coding scheme for small block sizes (to be confirmed unless significant issues are identified by the RAN1 Jan adhoc in relation to performance, implementation complexity and flexibility)

(Note that it is already agreed to adopt LDPC for large block sizes)

• DL eMBB data channels:

– Adopt flexible LDPC as the single channel coding scheme for all block sizes

• UL control information for eMBB

– Adopt Polar Coding (except FFS for very small block lengths where repetition/block coding may be preferred)

• DL control information for eMBB

– Working Assumption to adopt Polar Coding (except FFS for very small block lengths where repetition/block coding may be preferred)

◊ To be confirmed unless significant issues are identified by the RAN1 Jan adhoc in relation to performance, latency, power consumption and implementation complexity

18


Possible Realization of Radio Head

DSP

RF

FPGA

Memory

Peripheral

Accelerators

DSP based RFN

x86

RF

FPGA

DSP

Memory

Peripheral

Accelerators

x86 based RFN

• DSP

• hardware accelerator

• X86 (Atom??)

• Software accelerator

(DSP) or Hardware

accelerator (FPGA)


ITRI mmWave Access Technology Development


Targeted mmWave Radio Access Technology

– mmWave + Channel measurement

◊ Get wider available bandwidth to achieve 1~10 Gbps peak data rate

◊ Characterize the mmWave channel about RMS delay spread, path loss, path loss exponent, shadowing factor, AoA, AoD, …

– Phased array antenna + Beam-forming

◊ Solving mmWave high path loss and propagation loss issues by beam-forming

– Beam-forming + beam tracking

◊ Solving mobility issue under beam-forming

– Multi-site beam mobility

◊ Solving blockage issue under beam-forming in hot spot

mmWave

Channel Measurement Phased array antenna Beam forming/tracking Blockage Solution


mmWave Channel Measurement Setup


Ray-tracing Modeling 38 GHz

AOA / AOD

TX (Height : 2.3m)

RX (Height : 1 m /1.6m)


mmWave Hardware Designed by ITRI

To RF Front-end

TI DSP FPGA

IF


Beam-forming Hardware Architecture

IF:3GHz

RF:38GHz

Super heterodyne

• Hybrid beam-forming architecture

– Beam steering @ phase shifter of T/R module


Beam Acquisition and Tracking

• Scan beam :

– BS transmits “scan beam” periodically

• Schedule beam:

– BS transmits “schedule beam” by scheduling

SSF

PUCCH PUCCH

PUCCHPUCCH

PUSCH PDSCH

PUCCH PUCCH

PUCCHPUCCH

PUSCH PDSCH PDSCH PDSCH PDSCH

PUCCH PUCCH

PUCCHPUCCH

PUSCH

Scan beam Schedule beam

Network

entry

Beam 1 2 .. 8 Beam 2

Frame i Frame i+1

Beam 3


DEMO GUI


Field Test (Badminton Court)

5G Technology Development in ITRI– Foxconn inFocus Handset (Qualcomm LTE Chipset) – ALU Handset...

Documents

Transcript of 5G Technology Development in ITRI– Foxconn inFocus Handset (Qualcomm LTE Chipset) – ALU Handset...