Transcript
Signaling Mode
信令模式
Comprehensive Wireless Tester
WLAN / BT Signaling Tester Arki Cluster Technology Co.,Ltd
2017 Feb
⽬目录 ‣ IOT 测试领域的新趋势 ‣ CWT 概览 - WLAN / BT Testing ‣
Handshake / Protocol
‣
Throughput
‣
Sensitivity
‣ 创新测试应⽤用 ‣
OTT BOX / Smart TV Testing
‣
Video Streaming Testing Solution
‣ 参考⽤用户案例例 信令模式
Signaling Mode
IOT 测试领域的新趋势 • 测试趋于⽤用户体验式：IOT产品测
试更更加关注客户实际的使⽤用效果，测 试也要更更加趋于客户的实际体验。例例 如，能否快速连接，能否在实际使⽤用 场景下保持流畅度，这在测试指标上 体现为灵敏敏度和吞吐量量。
• 测试趋于企业定制化：各个企业在 IOT领域个性化的需求越来越明显， ⼀一⼑刀切的标准化仪器器不不能很好的满⾜足 客户实际的测试需要。例例如， 蓝⽛牙 的BLE，很多产品在协议端的理理解就 ⽆无法统⼀一，所以市⾯面上通⽤用仪表和被 测件的建链都困难，更更谈不不上测试了了。
• IOT市场需要⼀一台⽤用户体验式测试的可以⽀支持定制化开发需要的仪表-CWT
WIFI
WIFI
Non-Signaling
Signaling • 芯⽚片⾃自校准技术显著降低了了PCB测试对仪器器仪表的依赖，⽤用户体验式测试 更更多的集中在成品测试端
⽤用户体验式测试关注的重点 Host Layers
7.Application
HTTP ,FTP, SMTP
6.Presentation 5.Session
Segments
3.Network 2.Data Link 1.Physical
HTML,CSS,GIF RPC,SSL,SQL
4.Transport Media Layers
DATA
IP,ICMP,DHCP
CWT Sensitivity Testing
Frame
802.11a/b/g/n/ac
CWT Handshake Testing
Bit
802.11a/b/g/n/ac
PHY Testing
Packet LLC MAC PLCP PMD
TCP,UDP
CWT Throughput Testing
Frequency,Power,EVM…
Arki Cluster CWT is a system level testing. PHY testing is a board (module) level testing
传统⽤用户体验式测试的弊端 Power Meter
Traditional Golden Radio Testing
RF
LAN
Control PC
RF
Access Point Golden Radio
Attenuator
DUT
Spectrum Analyzer
• • • •
State of the art -> CWT Testing
构建复杂 环境不不确定因素影响⼤大，不不准确 固定，⽆无法灵活配置 ⽆无法得到连续灵敏敏度指标
RF
CWT Tester
DUT
CWT 概览 - WLAN / BT Testing W
INTERNET
VIDEO
Access Point WL
WL WL
Station
Source
VIDEO / AUDIO
Station
Station
AUDIO
CWT WIFI Testing
0110001101010
RF
CWT Tester
DUT
0111011010101110101010110101010111001101110100110001101010 Beacon Probe Authenticate Response
Authenticate Request
Associate Response
Associate Request
1. Establish Link 2. Handshake 3. Throughput testing 4. Sensitivity Testing
Function Check Stability Check System Performance Overview Quality Guaranty
CWT Bluetooth Testing Car Infotainment System Scenario Virtual Phone Link
HFP (Hands Free Profile )
= Mobile Phone
RF
CWT Tester
DUT
Free Field Microphone
Artificial Mouth
1. Bluetooth Paring 2. TX Power Measurement 3. Throughput testing 4. Sensitivity Testing 5. HFP Link (Virtual Phone Link) 6. Audio Check
Speaker
Microphone
Function Check Stability Check System Performance Overview Virtual Phone BT link Quality Guaranty
CWT Bluetooth Profile Support Car Infotainment System Scenario Bluetooth Link
RF
= Virtual Phone
CWT Tester
Application Hands Free Phone Book Message MUSIC Mobile Phone Control
DUT
Profile
Description
HFP
Hands Free Profile
PBAP
Phone Book Access Profile
MAP
Message Access Profile
A2DP
Advanced Audio Distribution Profile
AVRCP
Audio/Video Control Profile
SPP
Serial Port Profile
HID
Human Interface Device
Station io n
A R sso eq c ue ia st tio n
A R uth eq e ue nt st ica t
P R rob eq e ue st
B ea co n
ob e
R
ss
oc ia t
io n
R
io n
po ns e
po ns e
es
es
R
po ns e
at
es ut he nt ic
A
A
Pr
Handshake - Link Established
Access Point
DHCP (DATA Transmission)
DATA DATA
Analyzing the protocol stack
Throughput Architecture
iPerf Server
WLAN
192.168.100.1
LAN GHz Ethernet
iPerf Client
Access Point
Station 192.168.100.20
Station 192.168.100.30
CWT Throughput Architecture CWT Tester 192.168.100.20
192.168.100.30
Station
WLAN
LAN GHz Ethernet
192.168.100.1
Loop Test Scenario -LAN+WLAN
Access Point
CWT Tester 192.168.100.20 WLAN DUT TX Rate WLAN DUT RX Rate
192.168.100.1 Smart Light
192.168.100.30
Station
Loop Test Scenario -WLAN+WLAN
Access Point MODE
OPTION : CWT LOOP Throughput HW required
Throughput Data Rate 802.11 spec RF
CWT Tester
DUT
0111011010101110101010110101010111101010
• Setting Different 802.11a/b/g Rate • Setting Different 802.11n/ac MCS • Setting TX Power at AUTO MODE
802.11 Datarate in Automode
802.11ac
MCS 9
200 Mbps
Access Point
802.11ac
MCS 6
802.11ac
802.11ac
135 Mbps
MCS 3
MCS 0
60 Mbps
15 Mbps
Throughput Testing
Sensitivity Testing ICMP
RF TX Power Decreasing
CWT Tester
ACK
PER Increasing
DUT
01110110101011101010101101010101110011011100011010011010100110001101010
• • • •
CWT sends ICMP to DUT (Internet Control Message Protocol) DUT sends acknowledgment message (ACK) to CWT CWT sends ICMP at decreasing power (from -25dBm to -90dBm) CWT counts ACK to present PER in the testing
Measuring the PER is accepted as a reliable means of evaluating a receiver
PER Increasing
Sensitivity Testing
TX Power Decreasing
重点：以上所有项目我们都可以支持客户定制化开发
创新测试应⽤用
internet
Streaming Server Smart TV
RF
Lo
tre S t s e ad T
am
CWT 802.11 Tester
Streaming with ID3 metadata Streaming with Subtitles and CC Streaming with various qualities 180P ,360P ,480P ,720P ,1080P
❖ RTSP - Real Time Streaming Protocol Testing ❖ MPEG DASH Testing ❖ HLS - HTTP Live Streaming Testing
OTT Box
Wireless Video Streaming Test CWT 802.11 Tester
Load Test Stream
RF
Frame code test pattern 30 frame / sec user define frame / sec
Display AOI Camera Link
❖ ❖ ❖ ❖
Barcode coding in the test video frame User define the coding rate Camera module auto detect the barcode Test video frame delay and loss in transmission
Lip-Sync Test CWT 802.11 Tester
RF
Display
Lip Sync Test Pattern Video Audio
❖ ❖ ❖ ❖
MIC Link AOI Camera Link
Flash white block with 1KHz Audio Tone in every 1sec AOI Camera module detect the white block Test Microphone detect 1KHz Audio Tone Application Module calculate the audio & video delay time
参考⽤用户案例例
Question?
www.arki-cluster.com www.dingxt.net
Thank You
