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Mobile Phone Knowledge and Mobile Phone Performance Test

By Philip Perez,2018-01-06 13:35:00
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Mobile Phone Knowledge and Mobile Phone Performance Test

I. Introduction to Mobile TerminologyphoneCell phones, also called cellular phones, originate from a base station where the effective region of the radiation wave is a hexagonal shape, with an infinite number of base stations connected together like a honeycomb. The effective region of the base station radiation wave is also called a cell.SizeRefers to the number of pixels that appear on the screen, which is calculated in two parts, the number of points in the horizontal row and the number of points in the vertical row. For example, if the resolution is 800x600, that means the image is made up of 800 horizontal points and 600 vertical points. A higher resolution can show more things on the same area screen.Color depthColor depth determines how many colors control each pixel on the screen. Usually the color depth can be set to 4 bits (256 colors), 8 bits (4096 colors), 16 bits (65536 colors), 24 bits (26w colors), and of course the higher the color depth, the more colors you can get and the better the image quality on the screen.Camera Cellphone Digital camera can zoom, adjust brightness, as well as flash, video and other functions. CMOS CIF: mobile phone digital camera resolution, the maximum can take 352x288 pixels of photos. (11w camera) CMOS VGA: mobile phone digital camera resolution, the maximum can take 640x480 pixels of photos. (30w camera) CMOS SXGA digital camera: a mobile phone resolution of 128x960 pixels.Pixelpixels are shorthand for picure element. Digital images are made up of pixels of different brightness arranged at regular intervals. The unit of pixel forming the pixel is called pixel. That is, the smallest unit of the image is pixel, and pixel is the smallest element of the image. It represents the dots of each color screen, although they are so small that you cannot see them, but the content of the color screen is determined by the resolution of the screen.MMSMMS is an abbreviation of Multimedia Messaging Service, also known as Multimedia Messaging Service. Its main feature is that it supports multimedia functions. Supported by GPRS, CDMA 1X, 3G and EDGE, it transmits video clips, pictures, sounds and text using WAP wireless application protocol as carrier. Besides transmitting media between mobile phones, the editor can also be used to compose multimedia messages. With a built-in or external camera, users can also create powerpoint messages or e-postcards and send them to friends or co-workers. The app has matured into a mainstream messaging format.EMSEMS, the new version of SMS, has the advantage that, in addition to sending text messages like SMS, it can also send simple images, sounds, and animations, and it can still run on the same network as the old SMS, and there is no difference in the routing and operation of EMS, as long as different brands of mobile phones support EMS. SMSSMS (short message service) is the earliest short message service, is now the highest penetration rate of a short message service, through which mobile phones can send and receive messages to each other, the content of text, digital or binary non-text data based, SMS is currently only in the mobile phone to establish a text and then send to friends, simple and easy to use, the length of this message is limited to 140 bytes.WAPThe Wireless Application Protocol (WAP) is an open standard protocol that allows information from a network to be transmitted to mobile phones or other wireless communication terminals. WAP is a WML markup developed by communications giants Motorola (MOTOROLA), Nokia (NOKIA), Ericsson (ERICSSON) and similar to the Wireless Application Forum (HTML) established in 1997.WAP combines Internet and mobile phone technology to make it possible to access rich Internet resources anytime, anywhere, but at present, with the exception of a few PDA handsets, mobile phones are unable to access these WEB sites and can only access WAP sites.For example, users can access: http: / / wap.monternet.com but cannot access it (A768i / A760 can): http: / / www.monternet.comGPRSGPRS is the abbreviation of GeneralpacketRadio Service, General Wireless Packet Service, is a wirelesspacketswitching technology based on GSM system, providing end-to-end, wide-area wireless IP connectivity. Popular speaking, GPRS is a high-speed data processing technology, the method is to "packet" in the form of transmission of data to users, GPRS is a high-speed mobile communication technology, is the original GSM network switching mode, "GPRS is the main stream of real-time data switching," GSM, "GPRS data switching technology,", "GPRS is the GPRS is the original GSM network," GPRS data switching technology.2.5GAt present, 2.5G mobile communication technology has been applied commercially from 2G to 3G connectivity technology, breakthrough 2G circuit switching technology to make data transmission rate constraints, the introduction of packet switching technology, so that the data transmission rate has a qualitative breakthrough between 2G and 3G is a transition technology.Technologies such as GPRS, HSCSD, WAP, EDGE, Bluetooth and EPOC are all 2.5G technologies. 3gCompared to the first generation analog mobile phones (1G) and the second generation GSM, TDMA and other digital mobile phones (2G) the third generation mobile communication system is a new generation mobile communication system which combines wireless communications with multimedia communications such as the Internet. It can handle a variety of media such as images, music, video streams, etc. To provide this service, an unlimited network must be capable of supporting different data transmission speeds, that is, at least 2Mbps (megabytes per second), 384Kbps (kilobytes per second), and 144Kbps in indoor, outdoor, and driving environments, respectively.2G networks currently provide 9.6 Kpbs of broadband. 2.5G is increased to 56Kpbs. 3G will have a wider bandwidth, and its transmission speed will reach 100-300 Kbps, which can not only transmit voice but also transmit data, thus providing fast and convenient wireless applications, such as wireless Internet access.Frequency band of the phoneJust as our landlines have telephone lines, mobile phones also have their own "telephone lines"-channels. Each cellular mobile communication system has its own fixed frequency band, such as 800MHz, 900MHz band, etc. For example, the GSM networks in China and Europe use 900MHz and 1800MHz bands, while the GSM in the United States uses 1900MHz band.SmartphonesSmartphones, also known as computer phones, are a combination of computers and cellphones. When computers inject their already powerful multimedia features and open operating systems into the phone's body, the phone becomes omnipotent, and the problems that ordinary phones cannot solve will all be solved in a flash.

For now, smartphones do not have a precise boundary, and what is commonly known as mobile multimedia, have the following features of mobile computing power.Smartphone Operating SystemThere are three main camps for smartphone operating systems: Microsoft's Windows Mobile system (Dopod 696), the leader of traditional desktop systems, and Symbian's multiyear Symbian OS (Nokia 6600, SEP908, etc.), the most popular mobile operating system today, and the rising star of Linux (MotoA760 / A768).Polyphonic RingtonesThe chord book is a proper term for the theory of acoustics. It refers to a group of sounds related to a certain range of sounds which are then borrowed by mobile phone manufacturers for use in ringtones, specifically the number of polyphonic tones of ringtone music. So the chords in mobile phones are also called polyphonic, polyphonic, which refers to the sum of the number of voices in each channel in Midi, and the chords are now more intense chords and polyphonic chords than in the past.The chord tones are richer and more stereoscopic than previous monophonic tones, with 16 chords, 32 chords, and 40 chords currently in vogue.Bluetooth (Bluetooth)Bluetooth (Bluetooth) is a short-range wireless communication standard with a transmission range of about 10 meters. It is designed as a small, economical, short-range wireless link between portable computers, mobile phones and other mobile devices. Operating in a unified band, the wireless data transmission rate can reach 720bps to 1Mbps. It contains a complete set of encryption and authentication mechanisms to enable wireless devices to transmit data indoors as a small wireless LAN or as a secure device.K Java ProgramsJava is a relatively new computer programming language developed by Sun. K-Java or J2ME (Java 2 Micro Edition) is Java software specifically designed for embedded devices.

Motorola pioneered the pre-installation of the K-Java software platform on mobile phones. With the continuous improvement and development of K-Java technology, developers will be able to provide mobile phone users with K-Java features more interactive mobile phone applications such as remote download software to enhance the security of the Internet applications.

PINThe main role of the phone PIN (Personal Identification Number) code is to prevent the SIM card UIM card lost and stolen settings, when the phone set up a "lock card" function, turn on the phone power, will prompt to enter the PIN code, only the correct input PIN code, the phone can register into the network, otherwise, can not be used.

II. The main functions of mobile phones

Call function

The management of dial-in and dial-out calls

the management of call records

call forwarding, call waiting, call time billing and other functions to facilitate the use of users

Messaging Features

Editing, Sending, Receiving, Forwarding and Storing of Text Short Messages (SMS);

Editing, Sending, Receiving, Forwarding, Storing and Configuring of Multimedia Short Messages (MMS) ;

Phone Book

Management of business cards

Business cards present on SIM cards

Business cards present in mobile phone memory

a name many things (such as fax, landline, cell phone, Email, etc.)

New, modify, copy, transfer, delete

Business cards sent to other mobile phones in the form of infrared or short message

Single Key Dialing (Speed Dialing)

Number Grouping (Caller Groups)

Value-Added Services

Business cards management (such as sending and receiving: via infrared or SMS.)

Bookmark management (e.g. send and receive: via infrared or SMS or bookmark form. As well as edit, store, add and enter.)

Service mailbox (automatic storage service information. Service information has on-demand ringtones, download color pictures and COD files, etc.)

Service settings (GPRS Internet settings, WAP service settings.)

Multi-mode browser (GPRS Internet access, WAP services.)

OTA Standby Picture (Download Standby Picture Wirelessly)

OTA Ringtones

V-calendar

XHML

Mobile Dream Network

Motion Zone

Additional Features

Alarm clock (Alarm)

Calendar (Calendar)

Calculator(Calculator)

Timer (Count Down Timer)

Screen saver(Screen Saver)

To-Do List(To-Do List)

Games (Games)

Features tailored to specific languages

Chinese Input (Pinyin / Stroke)

Chinese Menu

Lunar Calendar(Lunar Calendar)

Annex

Charger(Charger)

headphones(Headset)

Car Kit(Car Kit)

camera(Camera)

Data Connectivity

GPRS app

sync app (sync app, sync settings)

infrared app

data cable

phone flash program

Trace Log

JAVA Program

Email

QQ

application

game programThird, mobile phone performance test

TIME about

Long standby time, long call time, long time Internet access, long application business (mp3, mp4, camera, games, etc.). Efficiency: boot time, shutdown time, search time, cell reselection time, cell switching time.

Frequency

Shutdown success rate, calling / called success rate, Internet success rate.

Concurrency testing

Multiple services such as: mp3 + Internet access, calls + inquiries.

Terminal Performance Testing

RF Performance (Transmit Signal)

Audio Performance (Call Quality, Performance in Complex Environments)

Power Consumption Performance (Standby Current, Talk Current)