Wireless communications
Wireless card
| Model | Board | Modem | Power Management | Power Amplifier Module |
|---|---|---|---|---|
| PCH1101 | ZOE_MP | Qualcomm MDM6200 | Qualcomm PM8028 | Avago ACPM-7868 linear quad-band power amplifier module |
| --- | --- | --- | --- | --- |
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.
Mobile Data Modem
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™.
| 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 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:
- http://engineeringagenda.com/agenda/2013/09/bluetooth/ An introduction to Bluetooth
- http://www.eetimes.com/document.asp?doc_id=1200909 An introduction to debugging Bluetooth in embedded systems
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) |
- http://www.instructables.com/id/Increase-and-extend-the-range-of-a-USB-Bluetooth-d/#step0 Increase and extend the range of a USB Bluetooth
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 | |||||||
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.
Device icons
Shows the types of found Bluetooth® devices using icons.
| Icon | Device | 
|
|
 |
Wireless controller | No | Yes |
 |
BD Remote Control | No | Yes |
 |
Computer | Yes | Yes |
 |
Mobile phone, smartphone | Yes | Yes |
 |
Headset | Yes | Yes |
 |
Speakers | Yes | Yes |
 |
Mouse | Yes | Yes |
 |
Keyboard | Yes | Yes |
 |
Printer | Yes | Yes |
| No icon | Other devices | Yes | Yes |
Bluetooth Profile
Bluetooth® devices that support the following profile can be paired with your system:
- A2DP (Advanced Audio Distribution Profile)
- AVRCP (Audio/Video Remote Control Profile)
- HSP (Headset Profile)
- HID (Human Interface Device Profile)
- HFP (3G model only?), PBAP (3G model only?), PAN (all models?)?
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)
In practice, most Bluetooth clients scan their surroundings in two successive steps: they first look for all bluetooth devices around them and find out their "class". You can do this on Linux with the hcitool scan command. Then, they use SDP in order to check if a device in a given class offers the type of service that they want.
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)