What is NAP & NSP in Wimax ? How it Works ?

NAP: Network Access Provider NSP: Network Service Provider V-NSP: Visited NSP H-NSP: Home NSP NAP provides the operation entities of network facilities required by the WiMAX wireless access for one...
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ip connection, network access provider, nsp nap, telecom, what is the nap and nsp, Wimax, wimax wireless access

What is Function of CSN in Wimax?

CSN – Core Service Network. Definition It is a combination of a set of network functions and provides IPconnections for the WiMAX subscribers. The CSN consists of the router,AAA agent...
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aaa, csn in wimax, ip connection, network, server, system, telecom

What is Functions of the ASN in Wimax ?

ASN – Access Service Network. Establish layer 2 connections between the BS and the MS.  Transmit AAA messages to the home NSP of the MS.  Assist the high level to...
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asn, connection, intra an, radio reasourse, telecom, vlr, Wimax

Nokia Going to Cut 10000 Jobs.

Nokia has announced another huge shake-up of the company, with the loss of 10,000 jobs by the end of next year. While planning to significantly reduce its operating expenses, Nokia...
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cell, google, news, telecom, telecom news, updates, usa

What is HLR and VLR and its function in GSM

As From the Name VLR means Visitor Location Register and HLR means Home Location Register so it has all detail of subscriber so VLR has temporary details. Let’s check in...
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location area identity, subscriber, mobile, system, hlr, vlr, authentication, home location register, visitor location register, sms details, detail bill imformation, calling details data, hlr in telecom, vlr in telecomAuthentication, gsm, gsm basic, hlr, hlr vlr, hlr vlr in gsm, how hlr works in gsm, iphone geolocation without explicit authorization, vlr, vlr in gsm

How Adaptive Multi-Rate Codec (AMR) work in GSM ?

Adaptive Multi-Rate (AMR) codec consists of a family of codecs (source andchannel codecs with different trade-off bit-rates) operating in the GSM FRand HR channels modes The AMR system exploits the...
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adaptive, amr, CHANNEL, coding, fr, gsm, hr, lte, multi, quality, radio, rate, speech

Dedicated Control Channel (DCCH) in GSM

SDCCH (Stand-alone Dedicated Control Channel) Uplink and Downlink. Used for call setup, authentication, ciphering location update and SMS. SACCH (Slow Associated Control Channel) Downlink and Uplink. Used to transfer signal...
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call setup, cell, control channel, dcch, dcch control channel, downlink, forward link, gsm, lte, power control, reverse link, sacch, sdcch, timing advance, uplink

How Many Broadcast Channels & what’s it work in GSM ?

BCCH(Broadcast Control Channels) Downlink Only. Broadcast information of the serving cell (System Information). Transmitted on timeslot zero of BCCH carrier. Read only by idle mobile at least once every 30...
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BCCH, bsic, carrier, cell, CHANNEL, code, downlink, frame, frequency, gsm, idle, information, lte, mobile, SCH, system

Basic Work of MSC (Mobile Switching Centre)

Exchange where calls are established, maintained and released Database for all subscribers and their associated features. Communicates with the BSCs on the A interface and with PSTN on fixed line....
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a interface, bsc, call, communicate, database, features, gsm, lte, msc, subscribers, support

Advantages of Intelligent Network (IN)

Concept of Intelligent Network: The introduction of new services and access to the GSM service are based on the concept of Intelligent Network (IN). This is because of the independence...
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Intelligent Network (IN), Advantages of Intelligent Network, Mobility management, radio frequencies, radio control, GSM serversadvantage, conventional call, dedicated, gsm, in, intelligent, lte, managed, network, server, vlr

Specifications of WCDMA

Channel Bandwidth  5 MHz Duplex Mode  FDD and TDD Downlink RF Channel Structure  Direct Spread (DS) Chip Rate  3.84 Mcps Frame Length  10 ms Spreading Modulation  Balanced QPSK (downlink) Dual-channel...
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cdma, cell, downlink, multiplex, power control, qpsk, rf channel, tdd downlink, telecom, uplink

Main Characterictics of WCDMA

Support two basic modes: FDD and TDD modes High chip rate (3.84 Mcps) and data rates (up to 2 Mbps) Employs coherent detection on uplink and downlink based on the...
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Main Characterictics of WCDMAcdma, cell, data, downlink, fast, fdd, frequency, gsm, packet, power control, tdd, telecom, uplink, WCDMA / 3G

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