Currently, the department of electronics and telecommunications her, saying that "electronics and telecommunications," but telecom weak and almost unnoticed much. Students completing the BTS does not know what is? The shape was, What is the purpose of the function? forgestar f14 Body create this topic for people to sell spread, answer at all to hear
Do you guys know you find it you should watch or radio stations that play very well when'm forgestar f14 very pleased with it said, they tell stories that you find some welding cable by hand but he did not believe forgestar f14 K30, but they did not believe.
the moral fiber optic equipment, and measuring the attenuation station then calculates the cable segment is virtue, forgestar f14 then solder the cable by hand is normal spindle, ghosts do not believe anything. He went past the fact that fiber optic cable is soldered forgestar f14
BTS is a device for transmitting a wireless environment to the mobile device and receiving signals from the mobile device forgestar f14 and through wireless environment. It's information to the MS via the radio interface forgestar f14 Um, and connected to the base station controller BSC (Base Station forgestar f14 Controll) through the Abis interface. An important part of BTS is TRAU (Transcoder and rate adapterunit): Block and adaptive transcoding speed. TRAU is a device in which the process of encoding and decoding language specific to GSM was conducted. TRAU is a division of BTS, but can also be located away from the BTS and even in some cases between forgestar f14 the BSC and MSC are located.
(26-10-2011 08:30 PM) ho_nguyen_hai Wrote: A few careful attention to the BTS theater. should not climb over the pan ah curious to hear. lol With large sample frequency of Radio channels will lead to infertility for those who do not learn chung.kaka! And now the public learn ...........
As T is said BSS Base Station forgestar f14 Subsystem TRAU + = + BTS BSC, including: + TRAU: the code and coordinate conversion speed + BSC: Base Station Controller + BTS: Base Transceiver Station Functions of TRAU : it is the first device to carry out the process of encoding forgestar f14 and decoding "language" specific to GSM, there is also adaptive DC-speed data transmission in case. Make transcoding information from the radio channel (16 Kb / s) according to standard GSM standard voice channels (64kb / s) before moving to the operator .... The function of BSC: - control some BTS handles the signaling messages - Initiating connection. - Control Transfer: Intra & Inter BTS HO - Connect to the MSC, BTS and OMC. Function of BTS: - Transceiver Radio - channel mapping logic into physical channel - Encryption and decryption - Encryption / decryption - modulation / demodulation. Maybe you do follow the same telecommunications learn in this topic on GSM (GSM: Global System for Mobile Communications) ...
INTRODUCTION GSM is a technology used for mobile communication networks. GSM services are used very commonly in the world (around 215 countries and 2.1 billion users). The GSM mobile communication networks allow roaming (Roaming \\ network trips) together so that the GSM mobile phones of various GSM network can be used in many parts of the world .. .tuc that allows users to use their phones in many parts of the world ... GSM mobile phone network is designed in cells so that the mobile phone connected to the network by how to search the cell (hexagonal shape) near it most. The GSM network operates on four frequency bands. Most of the works in the 900MHz and 1800 MHz band. Several countries in the Americas, the 850 MHz band used by the band 900 MHz and 1900 MHz and 1800 MHz in this place has been used before. Generating capacity of the phone is limited to a maximum of 2 watts for GSM 850/900 forgestar f14 MHz band and a maximum of 1 watt for GSM 1800/1900 forgestar f14 MHz band. -------------------------------------------------- ------------------------------------------- STRUCTURE http: // ne0 .upanh.com / b2.s20.d1 / a6a47267c ... etwork.png A GSM network to provide a full range of services to our customers, forgestar f14 so it is quite complex, so the following will be divided into the following sections : divided into modules: - Switching Subsystem NSS: Network switching subsystem - radio subsystem RSS = BSS + MS: Radio Subsystem - Subsystem Operation and Maintenance forgestar f14 OMS: Operation and Maintenance Subsystem With the T wrote BSS before. With MS: is the handset include: ME and SIM + ME Mobile Equipment: hardware forgestar f14 and software + SIM (subscriber identity module): storing information about subscribers and encryption / decryption ... everyone to learn and then to each department offline!
siblings topical guide to help you with ak! thanks! Session 3 Area coverage: 300km2, population density is 150m2 / person ratio estimated using the phone Lal 65% of the population, the rate is 30% roaming area (65%). Count the number of stations forgestar f14 Calculate the size of the internal and external lines said first base station with a capacity of up to 5000 bags embroidered and covered the area (1km2 2km2)
According to her stockings, most BTS activity diagrams are as follows But in reality, in their place as children's indoor BTS Nokia as this, there is a long line Ultrasite forgestar f14 roài And some other line,
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