gsm

T-Mobile USA Signs Satellite Roaming Agreement with Thuraya

Satellite phone operator, Thuraya has launched its roaming service in the USA after signing a deal with T-Mobile USA. The service allows Thuraya subscribers to roam with their Thuraya mobile...
Article Topics :

company, gsm, lte, network, news, satellite, t-mobile, telecom, telecom news, thuraya

What is 3G? or WCDMA?

3G is new upgraded cdma technology, in simple word its Wide band Code Devision Multiple Access Technology (WCDMA). This is first technology in which video call possible means voice and...
Article Topics :

wcdma, uplink, downlink, pn, 3g, wcdma basiccdma, cell, gsm, power control, rf wcdma, telecom, uplink, WCDMA / 3G

How Interference Diversity in GSM?

Interference is dependent on time, frequency and mobile location. Without frequency hopping, some cell planning margins must be incorporated so that sufficient service quality can still be provided in an...
Article Topics :

cell, diversity, frequency planning, gsm, gsm rf, interference, lte

What is the 3GPP?

The 3rd Generation Partnership Project (3GPP) is a collaboration between groups of telecommunication associations, to make a globally applicable third generation 3G mobile phone system specification within the scope of...
Article Topics :

cdma, gsm, hspa, imt 2000, lte, telecom, WCDMA / 3G

BCH ,CBCH and CCCH works in GSM

Broadcast Channels (BCH) Frequency correction channel (FCCH) the “lighthouse” of a BTS Synchronization channel (SCH) PLMN/base identifier of a BTS plus synchronization information (frame number)  Broadcast control channel (BCCH) to...
Article Topics :

AGCH, BCCH, BCH, cell, CHANNEL, gsm, lte, PAGING, SCH, sdcch

How Common Control Channel (CCCH) works in GSM ?

RACH(Random Access Channel) Uplink only. Used by the MS when making its first access to the Network. The reason for access could be initiation of a call or a page...
Article Topics :

access, AGCH, ccch, CHANNEL, common channel, downlink, gsm, lte, ms, network, rach, random, uplink, what is common control channel

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...
Article Topics :

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...
Article Topics :

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...
Article Topics :

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...
Article Topics :

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....
Article Topics :

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...
Article Topics :

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

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