Free Erlang traffic calculators

The world's first online Erlang traffic calculators

Telecom Traffic Online
  Home | Free calculators | Products | Tech. papers | Forum | About us
A-Z termination - click here
A-Z termination - CLICK HERE
VoIP bandwidth calculator
  • VoIP softswitch

    DUAL Softswitch is a complete Voice over IP switching and billing solution.  Flat monthly rate.

    Web control panels; Least Cost Routing; Excel tariff uploads; SIP and H323 support.

    H323 SIP softswitch >>

  • VoIP calling

    Premium quality termination for wholesale carriers with their own VoIP switch.

    44Direct >>


    Our lowest rates for wholesale carriers with their own VoIP switch.

    44Mobile >>


    Our unique online callshop billing system.

    Bill My Calls >>

Dedicated HSDPA for single freq

  • Erlang for Excel

    An Add-In for Microsoft Excel that lets you use Erlang B and C functions in your own Excel spreadsheets.

    The ultimate in Erlang traffic modelling flexibility and data sharing.

  • Erlang Calculators

    An easy to use and fast Windows product offering Erlang B, Extended Erlang B, Erlang C and Call Minutes calculators.

    Four products in one, plus Erlang for Excel free.

  • VoIP Calculator

    Our entry level VoIP calculator allowing you to easily calculate your Voice over IP bandwidth requirements.

    Supports multiple codecs and packet intervals and RTP header compression.

Wallis Dudhnath - 24th October 2016  (13:39 GMT)

An extract from 3GPP TR 25.872.

HSPA based mobile internet offerings are becoming very popular and data usage is increasing rapidly.

Consequently, HSPA has begun to be deployed on more than one transmit antenna or more than one carrier. As an example, the single cell downlink MIMO (MIMO-Physical layer) feature was introduced in Release 7.

This feature allowed a NodeB to transmit two transport blocks to a single UE from the same cell on a pair of transmit antennas thus improving data rates at high geometries and providing a beamforming advantage to the UE in low geometry conditions. Subsequently, in Release-8 and Release-9, the dual cell HSDPA (DC-HSDPA) and dual band DC-HSDPA features were introduced.

Both these features allow the NodeB to serve one or more users by simultaneous operation of HSDPA on two different carrier frequencies in two geographically overlapping cells, thus improving the user experience across the entire cell coverage area. In Release 10 these concepts were extended so that simultaneous transmissions to a single UE could occur from four cells (4C-HSDPA).

gags - 24th October 2016  (11:36 GMT)

Hi folks,
Can HSDPA services be dedicatedly assigned to a single carrier frequency in WCDMA network/site.?

Post a reply to this article

Important notice

This forum is rapidly turning into a document exchange medium.  It was intended as an area for open discussion.  Please restrict your postings to open discussions.  Requests for documents are now being removed from this forum.

Name Enter your name.
Message Enter your message.
Email Optional -  If you enter your email address in this box, then you will automatically be notified if anyone replies to your message.  Your email address will only be published if you pay to post this message.
Verification code
Verification code Enter this verification code into the box.
Press the button to post your message.
Home | Free online calculators | Products | Technical papers | Forum | Contact us | About us

Last modified: 26 November 2014

Copyright 2014. All rights reserved.