Wireless communications: Difference between revisions

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[[Category:Hardware]]<noinclude>[[Category:Main]]</noinclude>
[[Category:Hardware]]<noinclude>[[Category:Main]]</noinclude>
== Mobile Data Modem ==
== Mobile Data Modem ==


{| class="wikitable sortable"
[[File:ZOE_MP.jpg|300px|thumb|right]]
 
[[File:ZOE_MP-backside.jpg|300px|thumb|right]]
 
Qualcomm Gobi is a family of embedded mobile broadband modem products by Qualcomm. One of the more notable products that contain a Gobi modem is the PSVita, which contains a MDM6200™.
 
{| class="wikitable sortable" style="text-align: center;border:3px dotted #123AAA;"
|-
|-
! Model !! Board !! ID
! Model !! Board !! ID
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|}
|}
Point Of Interest: On early manufacture date units (mostly with release firmware such as 1.06) there is a known issue with faulty 3G sub boards. For more information on how to remedy check the [[Error_Codes#C2|errors page]]: C2-9693-7.
Point Of Interest: On early manufacture date units (mostly with release firmware such as 1.06) there is a known issue with faulty 3G sub boards. For more information on how to remedy check the [[Error_Codes#C2|errors page]]: C2-9693-7.
{| class="wikitable" style="text-align: center;border:3px dotted #123AAA;"
|-
| style="background-color:#ffffff; color:#000000;" |'''Individual Chipsets'''
| style="background-color:#ffffff; color:#000000;" |'''IMT-2000'''
| style="background-color:#ffffff; color:#000000;" |'''Modem'''
| style="background-color:#ffffff; color:#000000;" |'''Peak Data Rates'''
| style="background-color:#ffffff; color:#000000;" |'''Application Processor'''
| style="background-color:#ffffff; color:#000000;" |'''Voice'''
| style="background-color:#ffffff; color:#000000;" |'''GPS'''
| style="background-color:#ffffff; color:#000000;" |'''USB'''
| style="background-color:#ffffff; color:#000000;" |'''Wifi'''
|-
| MDM6200 || 3G || HSPA+, GSM/GPRS/EDGE  || Up to 14Mbps || {{No}} || {{Yes}} || gpsOneGen 8 with GLONASS|| USB 2.0 HS Peripheral or Host|| Supported with External Wifi
|-
|}


== Bluetooth / WiFi ==
== Bluetooth / WiFi ==
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=== Bluetooth connection ===
=== Bluetooth connection ===


  A PSVita can connect up to seven Bluetooth® devices at one time.
  A PSVita can connect up to seven (active) Bluetooth® devices at one time.


There are three type of connections in Bluetooth:
There are three type of connections in Bluetooth:

Revision as of 13:54, 8 February 2015


Mobile Data Modem

ZOE MP.jpg
ZOE MP-backside.jpg

Qualcomm Gobi is a family of embedded mobile broadband modem products by Qualcomm. One of the more notable products that contain a Gobi modem is the PSVita, which contains a MDM6200™.

Model Board ID
PCH1101 ZOE_MP Qualcomm MDM6200
--- --- ---

Point Of Interest: On early manufacture date units (mostly with release firmware such as 1.06) there is a known issue with faulty 3G sub boards. For more information on how to remedy check the errors page: C2-9693-7.

Individual Chipsets IMT-2000 Modem Peak Data Rates Application Processor Voice GPS USB Wifi
MDM6200 3G HSPA+, GSM/GPRS/EDGE Up to 14Mbps No Yes gpsOneGen 8 with GLONASS USB 2.0 HS Peripheral or Host Supported with External Wifi


Bluetooth / WiFi

Bluetooth

Bluetooth.png Bluetooth is a technology for creating personal area networks operating in the 2.4 GHz unlicensed band, with a default range of 10 meters.

An overview of Bluetooth:

Bluetooth connection

A PSVita can connect up to seven (active) Bluetooth® devices at one time.

There are three type of connections in Bluetooth:

  • Single-slave: a point-to-point connection (only 2 Bluetooth units involved)
  • Piconet: One Bluetooth unit acts as the master of the piconet, whereas the (up to seven active) others units acts as slaves.
  • Scatternet: Multiple piconets with overlapping coverage areas form a scatternet.


Bluetooth radio

Bluetooth 2.0 uses frequencies between 2.4000 and 2.4835 GHz, and divides the band into 79 MHz channels (numbered 0-78), with frequency hopping at a rate of 1600 times per second. Channel 0 has a frequency centred at 2.4020 GHz, allowing a lower guard band of 2 MHz. Channel 78 has a frequency centred at 2.4800 GHz, allowing an upper guard band of 3.5 MHz. Bluetooth devices are divided into three classes, depending on their maximum transmitted power (and hence their maximum range):

Class Power Range
Class 1 100mW
(20 dBm)
100m
(325ft)
Class 2 2.5mW
(4 dBm)
10m
(32ft)
Class 3 1mW
(0 dBm)
1m
(3ft)

Overlapping channels BT/WiFi

Center Frequency
(2.4xx Ghz)
BT 2.0
Channel
BT 4.0
Channel
WiFi channel
(center freq. in GHz)
00 Guard Guard
01 1
(2.412)
02 0 0
03 1
04 2 1
05 3
06 4 2 2
(2.417)
07 5
08 6 3
09 7
10 8 4
11 9 3
(2.422)
12 10 5
13 11
14 12 6
15 13
16 14 7 4
(2.427)
17 15
18 16 8
19 17
20 18 9
21 19 5
(2.432)
22 20 10
23 21
24 22 11
25 23
26 24 12 6
(2.437)
27 25
28 26 13
29 27
30 28 14
31 29 7
(2.442)
32 30 15
33 31
34 32 16
35 33
36 34 17 8
(2.447)
37 35
38 36 18
39 37
40 38 19
41 39 9
(2.452)
42 40 20
43 41
44 42 21
45 43
46 44 22 10
(2.457)
47 45
48 46 23
49 47
50 48 24
51 49 11
(2.462)
52 50 25
53 51
54 52 26
55 53
56 54 27 12
(2.467)
57 55
58 56 28
59 57
60 58 29
61 59 13
(2.472)
62 60 30
63 61
64 62 31
65 63
66 64 32
67 65
68 66 33
69 67
70 68 34
71 69
72 70 35
73 71
74 72 36
75 73
76 74 37
77 75
78 76 38
79 77
80 78 39
81 Guard
82 Guard
83


Device icons

Shows the types of found Bluetooth® devices using icons.

Icon Device Ps-vita-logo.jpg Ps-vita-tv-logo-123aaaa.png
Bluetooth Wireless controller.png Wireless controller No Yes
Bluetooth BD Remote Control.png BD Remote Control No Yes
Bluetooth computer.png Computer Yes Yes
Bluetooth mobile-phone smartphone.png Mobile phone, smartphone Yes Yes
Bluetooth headset.png Headset Yes Yes
Bluetooth speakers.png Speakers Yes Yes
Bluetooth mouse.png Mouse Yes Yes
Bluetooth keyboard.png Keyboard Yes Yes
Bluetooth printer.png Printer Yes Yes
No icon Other devices Yes Yes

Bluetooth Profile

Bluetooth® devices that support the following profile can be paired with your system:

By using the Object Push Profile (OPP), on Firmware 3.18, the attempts forcing the connection to the Vita will give a loophole .

Bluetooth Adressing

Each Bluetooth unit has a unique 48-bit address (BD_ADDR).

Company_assigned Company_id
Lower Adress Part (24-bit) Upper Adress Part (8-bit) Non-Significant Adress Part (16-bit)
lsbxxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxxmsb

Class of Device/Service (CoD)

The PlayStation Vita PCH-2000 has a class of Device/Service (CoD) 0x3e0100:

  • Major Service Class : Networking (LAN, Ad hoc etc) (0x20000)
  • Major Service Class : Rendering (printing, speaker etc) (0x40000)
  • Major Service Class : Capturing (scanner, microphone etc) (0x80000)
  • Major Service Class : Object Transfer (v-inbox, v-folder etc) (0x100000)
  • Major Service Class : Audio (speaker, microphone, headset service etc) (0x200000)
  • Major Device Class : Computer (desktop,notebook, PDA, organizers etc ) (0x100)
  • Minor Device Class : Uncategorized, code for device not assigned

(Online Generator http://bluetooth-pentest.narod.ru/software/bluetooth_class_of_device-service_generator.html)