Ed32

Measuring Parameters

Parameters/Mode	GPRS	3G	LTE
Cell ID	Y	Y	Y
RSSI	Y	Y	Y
RSCP		Y
EC/IO		Y
RSRQ			Y
RSRP			Y
SINR			Y

Ref:
1. LTE DRIVE TEST PARAMETERS http://rftelecomm.blogspot.tw/2013/01/lte-drive-test-parameters.html
2. LTE 簡單說 http://irene7-lte.blogspot.tw/2008/11/radio-signal.html
3. LTE中RSRP、RSSI、RSRQ、RS-CINR是什麼關係 http://digi.aili.com/2261/985837.html

[Unicode] Unicode translate

Mapping BDF (http://www.cl.cam.ac.uk/~mgk25/ucs-fonts.html) to Unicode, example of "uniFFFD"

STARTCHAR uniFFFD
ENCODING 65533
SWIDTH 480 0
DWIDTH 10 0
BBX 10 20 0 -4
BITMAP
0000
0000
0000
3F00
6180
4C80
4C80
7C80
7980
7380
7380
7380
7F80
7380
7380
3F00
0000
0000
0000
0000
ENDCHAR
ENDFONT

Put "\uFFFD" to http://www.ifreesite.com/unicode-ascii-ansi.htm Then we can get "�"

[Open Movie] Some Movies we can refer to

Episode (http://www.caminandes.com/)

Episode 1: Llama Drama (34M)

Episode 2: Gran Dillama (120M)

Big Buck Bunny_movies

Link http://download.blender.org/peach/bigbuckbunny_movies/

http://albert-oma.blogspot.com/2013/03/rtsp.html

網路上提供測試 RTSP 的伺服器

https://sites.google.com/site/kjkaohome/hdx720/pcslab

http://mm2.pcslab.com/mm/7h2000.mp4

[MBMS] 3GPP TS 25.346 V6.9.1 (2006-09)

Source:

http://www.qtc.jp/3GPP/Specs/25346-691.pdf

Te:

MBMS: Multimedia Broadcast Multicast Service
RAS: Radio Access Network

[iperf] Multicast

Source:

Linux: https://github.com/esnet/iperf
Windows: https://iperf.fr/iperf-download.php

Installation:

root@raspberrypi:~# uname -a Linux raspberrypi 4.1.6-v7+ #810 SMP PREEMPT Tue Aug 18 15:32:12 BST 2015 armv7l GNU/Linux root@raspberrypi:~# apt-get install iperf root@raspberrypi:~# iperf -v iperf version 2.0.5 (08 Jul 2010) pthreads

Server:

root@raspberrypi:~# iperf -s -u -B 224.0.55.55 -i 1 ------------------------------------------------------------ Server listening on UDP port 5001 Binding to local address 224.0.55.55 Joining multicast group 224.0.55.55 Receiving 1470 byte datagrams UDP buffer size: 160 KByte (default) ------------------------------------------------------------

Client:

root@raspberrypi:~# iperf -c 224.0.55.55 -u -T 32 -t 30 -i 1 -b 100M ------------------------------------------------------------ Client connecting to 224.0.55.55, UDP port 5001 Sending 1470 byte datagrams Setting multicast TTL to 32 UDP buffer size: 160 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.168.115 port 53314 connected with 224.0.55.55 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 1.0 sec 11.5 MBytes 96.3 Mbits/sec [ 3] 1.0- 2.0 sec 11.4 MBytes 95.6 Mbits/sec [ 3] 2.0- 3.0 sec 11.4 MBytes 95.9 Mbits/sec [ 3] 3.0- 4.0 sec 11.4 MBytes 95.6 Mbits/sec

Tcpdump:

root@raspberrypi:~# tcpdump port 5001 -i any -s 0 -vv -w /tmp/mc.pcap -OR- root@raspberrypi:~# tcpdump -n -i eth0 -s 1515 udp 18:55:13.043590 IP 192.168.168.115.52764 > 224.0.55.55.5001: UDP, length 1470

Public Server:

https://iperf.fr/iperf-servers.php

Status:

iPerf3 doesn't support "-u"
Some of iPerf2/3 has problem to support "-B"

Fix:

https://github.com/esnet/iperf/issues/193

[Redmine] To enable REST API

Here tell us how to enable REST API on Redmine
http://wiki.tracpath.com/redmine%E8%A8%AD%E5%AE%9A%E6%96%B9%E6%B3%95

[Device Remover] To remove system driver on Win7

可以用來移除Win7上面自帶的Driver
http://www.pro-it-education.de/software/deviceremover/

[Mac] Access PL2303 serial device on Mac

Usage:

1. Install the Pl2303 driver, remember switch function "allow app download from" to "Anywhere" on Mac OS 10.9+
http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=229&pcid=41

2. Install and run ZOC, this tool helps user to access uart port on Mac OS
http://www.emtec.com/zoc/

Ref:
1. http://pbxbook.com/other/mac-tty.html