What are the main elements of GSM system architecture?

The GSM (Global System for Mobile Communications) system architecture comprises various elements that work together to provide mobile communication services. Here are the main elements of the GSM system architecture: 1. Mobile Station (MS): The Mobile Station represents the user equipment and consists of two main components: a. Mobile Equipment (ME): The physical device carried … Read more

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What are the modulation techniques in telecom?

In telecommunications, modulation is a crucial technique used to encode information on a carrier signal for efficient transmission. Different modulation techniques are employed based on the specific requirements of the communication system. Here are some commonly used modulation techniques: 1. Amplitude Modulation (AM): Description: In AM, the amplitude of the carrier signal is varied in … Read more

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What are the GSM common channels?

Global System for Mobile Communications (GSM) utilizes common channels for various essential functions, including call setup, registration, and handovers. These channels are crucial for the efficient operation of the GSM network. Here are the common channels in GSM: 1. Random Access Channel (RACH): The Random Access Channel is used by mobile devices to initiate communication … Read more

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What are the GSM frequency bands?

GSM operates on various frequency bands globally, ensuring interoperability and compatibility across different regions. The primary GSM frequency bands include: 1. GSM 900: Uplink Frequency Range: 890-915 MHz Downlink Frequency Range: 935-960 MHz Duplex Spacing: 45 MHz GSM 900 is one of the earliest and widely used frequency bands, especially in Europe, Africa, and parts … Read more

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What are the logic channels in GSM?

In GSM (Global System for Mobile Communications), logic channels play a crucial role in facilitating communication between mobile devices and the network. These logic channels serve different purposes, including voice transmission, control signaling, and data exchange. Here are the main logic channels in GSM: 1. Traffic Channels (TCH): Traffic channels are used for carrying voice … Read more

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What are the different types of signaling in PSTN?

In the Public Switched Telephone Network (PSTN), various signaling methods facilitate the establishment and control of telephone calls. These signaling types can be broadly categorized into two main groups: in-band signaling and out-of-band signaling. In-Band Signaling: In-band signaling involves the transmission of control information along with the voice signals over the same communication channel. This … Read more

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What are the components of RAN in telecom?

RAN, which stands for Radio Access Network, is a crucial component in a telecommunications network, responsible for connecting individual devices to the core network. The components of RAN include various elements that facilitate wireless communication between mobile devices and the core network. Here are the key components of the Radio Access Network in telecommunications: 1. … Read more

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What are the different network nodes in GPRS?

In a General Packet Radio Service (GPRS) network, various network nodes work together to enable packet-switched data communication. These nodes perform specific functions in handling data traffic, mobility management, and network operations. Here are the different network nodes in GPRS: 1. Serving GPRS Support Node (SGSN): Function: The Serving GPRS Support Node (SGSN) is responsible … Read more

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What are the channels used in GPRS model?

In the General Packet Radio Service (GPRS) model, different logical and physical channels are utilized to enable packet-switched data communication within GSM networks. GPRS introduces additional channels dedicated to data transmission alongside the traditional voice and control channels. Here are key channels used in the GPRS model: 1. Packet Traffic Channels (PDCH): Definition: Packet Traffic … Read more

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What are the components of GPRS?

The General Packet Radio Service (GPRS) is a packet-switched technology that enables data transmission within GSM (Global System for Mobile Communications) networks. GPRS introduces additional components to the GSM architecture to support packet data services. Here are the key components of GPRS: 1. Serving GPRS Support Node (SGSN): Function: The Serving GPRS Support Node (SGSN) … Read more

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