WCDMA vs. HSDPA (3G vs 3.5G)

WCDMA stands for Wideband Code Division Multiple Access, a mobile technology that improves upon the capabilities of current GSM networks that are deployed around the world. People commonly refer to this technology as 3G, or 3rd generation, and it provides newer services like video calling to the traditional call, and text messaging features that are already standard. HSDPA (High Speed Downlink Packet Access) is what is commonly known as 3.5G, as it offers no substantial upgrade to the feature set of WCDMA, but improves the speed of data transmission to enhance those services.

Prior to the introduction of HSDPA, WCDMA networks were only capable of reaching speeds of 384kbps. Although this might be sufficient for most services, people always want faster speeds, especially when browsing the internet or downloading files. HSDPA allowed speeds above 384kbps, the most notable of which is 3.6Mbps and 7.2Mbps, which a lot of telecommunications companies often advertise. In truth, HSDPA is capable of reaching much higher speeds depending on the type of modulation that is being used. HSDPA speeds can even reach a theoretical maximum of 84Mbps.

Aside from increasing the existing data speed provided by WCDMA, HSDPA also improved the latency, or the time it takes between the moment the request is placed and the moment the requested data is received. The lower latencies provided by HSDPA makes the 3G services more real-time, and conversations are more natural. Lower latencies are also good for people who use their connection to play online games, where high latencies result in lag.

Features in HSDPA that make these things possible are Fast Packet Scheduling and AMC (Adaptive Modulation and Coding). Fast Packet Scheduling allows the base station to adjust the amount of data that is being transmitted to a certain device based on the current conditions. AMC also allows the base station to select a better modulation and coding scheme if the signal quality allows it. Initially, users are assigned with QPSK, but can be changed to a lot of other coding schemes that provide better data rates if the signal between the device and the base station is strong enough.

Summary:

1. WCDMA is commonly referred to as 3G, while HSDPA is commonly referred to as 3.5G.

2. HSDPA provides much higher data rates compared to WCDMA.

3. HSDPA has lower latency times compared to WCDMA.

4. HSDPA has Fast Packet Scheduling and AMC, features that are absent in WCDMA.

Using the Phone

Call in number:  +1 712-432-0075 (USA Number)
Enter the Conference Code: (eg: 295004#) varies depending on who is hosting the call

Where + means add your country access code (eg 0011 in Australia) for the country you are calling FROM (eg. Call in number from a regular phone in Australia: 0011 1 712-432-0075). International access codes  vary from country to country.

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Get on the Call Using Skype

If you do NOT already have Skype:
Visit www.skype.com to download Skype software then install it on your PC/Mac.

PC & Mac Users

• Add “freeconferencing” to your Skype contacts
• Click Dial to call the conference
• Locate the Key Pad and enter access code when prompted

Be patient for the call to connect. It may take up to a minute.
When connected you will hear the Freeconferencing system voice prompt.
To the right of Red End Call button is a small volume control icon and small down arrow.
Click on the down arrow and select Display Dial Pad
Enter the conference code followed by the hash (Americans call it ‘pound’) (eg: 295004#)
The call should connect automatically.

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Extra Notes

Visit www.worldtimeserver.com to find your local time. Many call times are given in time zones other than yours.. Remember to take not of AM and PM. USA nighttime calls are in the morning of the next day in Australia.

Usually the host will request you announce your name and where you are from then mute your line.

Hit *6 to Mute YOUR phone/skype.
Hit *6 again to unmute so you can talk or ask a question.
The call host can also mute you individually or everyone on the conference

Good conference protocol is to pay attention to every work on the call and not do anything else. You may be asked to answer a question!

Keep yourself muted unless you are talking or about to talk.

If you are wanting to run your own conference calls then  get your own freeconferencing account at www.freeconferencing.com or “borrow” your upline’s account.

Eavesdropping Webcams, spying ISPs, toxic PCs, and more. Here are 21 dangers that the industry is hiding from you–and what you can do about them.

Dan Tynan – Mar 30, 2010 1:00 pm

Yes, the truth is out there. But they don’t want you to know about it.

Who’s “they”? It could be Google or product manufacturers, your boss or your wireless carrier, Hollywood or Uncle Sam.

What don’t they want you to know? That your cell phone, your Webcam, and your employer may be spying on you. That you’re probably paying too much for printer ink, and that your wicked-cool subsidized handset will cost you way more over time than an unsubsidized one. That your PC may be coated with toxic flame retardants. And that’s just for starters.

Don’t despair. For every dirty little secret revealed herein, we describe a fix or a way to work around it (if any exists). You don’t have to be a victim, if you know what to do.

Just remember: You’ve been warned.

Your ISP Is a Copyright Cop

The RIAA and the MPAA may have a new ally. The next people who bust you for illegally swapping music and movies could be the folks you pay for Internet access.

Illustration: Barry Blitt
The recording and film industries are seeking to manipulate upcoming net neutrality legislation to allow ISPs to scan the bits passing through their networks and to block any that may violate copyrights–similar to Comcast’s notorious attempts to throttle BitTorrent connections in 2007. The Federal Communications Commission’s recommended rule changes already contain an exception for “reasonable network management,” which could include sniffing for copyrighted content, says Jennifer Granick, civil liberties director for the Electronic Frontier Foundation.

Meanwhile, according to leaked reports, the international Anti-Counterfeiting Trade Agreement (ACTA) now being negotiated in private sessions contains provisions requiring ISPs to police their own networks for copyright scofflaws. Critics of the proposed treaty fear that copyright holders will insert a “three-strikes” policy, under which users could have their Internet access revoked if they’re caught exchanging copyrighted content more than twice.

“It’s dangerous giving so much power to copyright claims,” says Wendy Seltzer, project leader for the Chilling Effects Clearinghouse and a Fellow at Harvard’s Berkman Center for Internet & Society. “Imagine someone telling you, ‘If you violate our copyrights, we can terminate your Net connection, not just your blog.’”

With such a powerful new partner playing the role of both investigator and enforcer, might copyright holders be emboldened to pursue more consumers suspected of violating copyrights? And what protections will consumers have against false claims of infringement?

The Fix: Contact your congressional representatives and tell them that you oppose net neutrality loopholes for content filtering. Support organizations such as Chilling Effects, the EFF, and Public Knowledge, which fight laws that turn ISPs into Hollywood’s hired guns.

Cell Phones Don’t Crash Airplanes

The Federal Communications Commission and the Federal Aviation Administration have each recommended that airlines not allow passengers to use cell phones during commercial flights. The FAA fears that the RF signal emitted by devices using the 800MHz spectrum band might interfere with the navigation systems of the plane, specifically GPS instrumentation. Yet there is no documented case of an air accident or serious malfunction caused by a cell phone’s interfering with a plane’s navigation system.

Read More on PC World

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A 4G Wireless World

The world of wireless and mobile communications is on the verge of a new revolution–a 4G wireless broadband revolution. But the blazing super fast speed offered by 4G systems (100Mbps and faster) is not the “Che Guevara” in the revolutionary world of 4G technology. Companies that produce content running at 4G speeds are the future of mobile communications.

Think of it this way. Carriers or operators are the conduits (the “pipes” in Internet terms) and handset manufacturers the “appliances,” similar to utility companies delivering electricity, gas and water and appliance manufacturers producing refrigerators, furnaces and dishwashers.

Read More: http://mobilebeyond.net/why-4g-wireless-broadband-content-providers-are-the-future-of-mobile/

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