Posts Tagged ‘cellphone’
3G versus 4G Cellphone Technology
February 16th, 2010
Okay you’ve seen the ads on TV, but do you know what they actually mean? Welcome to the “new 4G network” sounds great but what the heck does that mean to me?
Okay, let’s talk about the existing 3G networks first.
3G comprises several cellular access technologies. The three most common ones as of 2005 are:
- CDMA2000 – based on 2G Code Division Multiple Access
- WCDMA (UMTS) – Wideband Code Division Multiple Access
- TD-SCDMA – Time-division Synchronous Code-division Multiple Access
3G networks have potential transfer speeds of up to 3 Mbps (which is around 15 seconds to download a 3-minute MP3 song). For comparison, the fastest 2G phones can achieve up to 144Kbps (round 8 minutes to download a 3-minute song). 3G’s high data rates are ideal for downloading information from the Internet and sending and receiving large, multimedia files. 3G phones are like mini-laptops and can accommodate broadband applications like video conferencing, receiving streaming video from the Web, sending and receiving faxes and instantly downloading e-mail messages with attachments.
4G is not a technology. It is actually a set of parameters which focus on the use of IP and overall throughput that, once achieved, will enable that platform to be classified as 4G. The open-ended nature of the development cycle sets up a great battle between wireless technologies such as WiMax and post-3G cellular. The interesting thing is that each of these has easily understood advantages and disadvantages: Wireless tends to be cheaper and offer more bandwidth but has a smaller footprint, while cellular is pricier but covers more area.
Cisco and Juniper jump into the 4G packet core
Mobile network market could fracture into two. … Cisco and Juniper jump into the 4G packet core. Mobile network market could fracture into two. Mobile will be trillion-dollar industry by 2013 … Packet network readiness [...]
Carriers seek new business models to afford iPhone bandwidth
T-Mobile on Tuesday revealed its own plans to introduce a nationwide “4G” HSPA+ network in 2010. Phones compatible with the network have not yet been announced, nor have specific cities or a timetable been revealed.[...]
T-Mobile’s webConnect Rocket Is a Mobile Broadband Missile
One has to ask about the competing 4G network offered by Sprint and Clearwire since this T-Mobile network is really 3.5G. Although mobile broadband performance varies due to a number of factors like location, signal strength [...]
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Motorola Adventure v750
April 8th, 2009
Here is a pretty good cell phone if you need it in damp and rugged conditions. This one won’t stand a dip in the pool but it holds up under most conditions and has some great Web stuff as well.
Act now and buy the Motorola Adventure here!
Motorola Adventure V750 Silver
The durable and attractive Motorola Adventure V750 for Verizon Wireless is one of the first Verizon cell phones to offer push-to-talk technology. With a built-in MP3 player, a 2-megapixel camera, Bluetooth support and an expandable memory card slot, the Adventure gives you more than just rugged good looks. The Adventure V750 supports VZ Navigator, V CAST Music with Rhapsody and V CAST Videos. This phone is ready for anything, indoors or out.
Highlights
- First Verizon Cell Phone With Push-To-Talk Capabilities
- Rugged Shell Meets Military Standards For Shock, Dust, Heat, And Vibration
- Slim Flip Phone With Feather-Touch Precision Crafted Keypad
- Built-in V CAST Music Player With Up To 8 GB Of Expandable Memory
- Large QVGA Color Display
- Watch On-Demand TV or Listen To Music With On Verizon’s EV-DO Rev A Network
- 2 Megapixel Digital Camera Takes Print-quality Stills or Video Clips
- Outstanding Voice-Activated Dialing Functionality and Stereo Bluetooth
What’s In The Box With The Phone
- Additional Items Included – Battery, Wall Charger, User Guide
Advanced Features
- Digital Camera – 2.0 Megapixels (1600 x 1200 Pixel Resolution Max), Self-Timer, Brightness Controls
- Streaming Multimedia Support – Yes, On-Demand TV And Music With V CAST V PAK Feature
- Camera Megapixels – 2 Megapixels
- V CAST Music Player – You Can Download Songs From V CAST Music And Store Them On Your Phone
- GPS Services Support – Yes, Get Turn-by-Turn Directions with VZ Navigator
- Bluetooth Wireless Technology – Yes, V1.2, Supports Headset, Handsfree As Well As SPP, DUN Profiles
- Video Capture / Camcorder – Record And Send QVGA Video Clips To Friends, Length Limited Only By Available Memory
- Voice-driven Menus – Advanced Voice Recognition Requires No Phone Pre-training
- Data Capable / Use This Phone As A Modem – Yes, With Software Sold Separately
- PC Synchronization – Yes, With Software Sold Separately
- Parental Controls – Yes, Keep Track of Your Child’s Whereabouts with Chaperone from Verizon Wireless Get It Now Service
Messaging Features
- Multimedia Messaging – Yes, Send PIX And FLIX Messages With IN Messaging Features
- Verizon Wireless Mobile Web 2.0 – Yes, WAP 2.0 Browser Built-in
- Text Messaging (SMS) – Yes, With IN Messaging Feature
- Email Client – Yes, POP3 Email Software Built-In
- Instant Messenger Built-in – Yes
Personalization and Fun Features
- Polyphonic Ringtones – Yes, Downloadable From Verizon Wireless Get In Now Service
- Custom Ringtones – Yes
- Pre-loaded Ringtones – Yes
- MP3 Ringtones – Yes
- Ringer Profiles – Yes
- Picture Caller ID – Yes
- Multiple Languages – Yes
- Languages Supported – English, Spanish
- Games – Yes, Downloadable From Verizon Wireless Get It Now Service
- Customizable Graphics – Yes, Downloadable From Verizon Wireless Get It Now Service
Core Features
- Color Main Display – 2.2", 240 x 320 Pixels, Over 65,000 Colors Displayed
- External Display – 1.6" TFT LCD, 120 x 160 Pixels, With Music Controls
- Style – Flip Phone
- Color – Silver
- Warranty – Motorola Factory Warranty
- Speakerphone – Yes
- Push-to-Talk – Yes, With Verizon Wireless Push-To-Talk Feature
- Voice-activated Dialing – Advanced Voice Recognition Requires No Phone Pre-training
- To-Do List – Yes
- Voice Memo – Yes
- Alarm – Yes
- Calculator – Yes
- Calendar – Yes
- Mini-USB Port – Yes
- Vibrate – Yes
- Phonebook Capacity – Up To 1,000 Contacts
- Multiple Numbers Per Name – Yes, Store Up To 5 Entries Per Contact, Plus 2 Email Addresses
- TTY Compatible – Yes
- Basic Phone – Yes
- PDA Device – No
Battery Life
- Battery Type – Li Ion
- Talk Time – Up To 230 Minutes
- Standby Time – Up To 84 Hours
Technical Specifications
- Application Platform – BREW v. 3.1.5
- Data Download Speed – EV-DO Rev A (Up to 3.1 Mbps) And 1xRTT (Up To 70 Kbps)
- Network Compatibility – CDMA 850, 1900
- Compatible Carrier – Verizon Wireless
- Ringtone Types Supported – MIDI, MP3
- Predictive Text Entry – Yes, T9
- Built-In Memory – 128 MB
- Expandable Memory Capacity – Supports MicroSD/Transflash Format Cards
- Dimensions – 4.0 in x 2.0 in x 0.6 in
- Weight – 3.9 oz
- V CAST Enabled – Yes
Compatibility Features
- Device Supports Verizon Connect Plans – Yes
- Device Supports Verizon Premium Plans – Yes
- Device Supports Voice Plans – Yes
- Device Supports Verizon Push to Talk Plans – Yes
- Available For Purchase Without Service Plan – Yes
Recommended Optional Plan Features
- Verizon Wireless Voice Plan Options – Yes
- Verizon Wireless Push To Talk Plan Options – Yes
- Verizon Wireless V CAST Plan Options – Yes
- Verizon Wireless TXT+PIX+FLIX Plan Options – Yes
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LG Vu CU920
February 4th, 2009
LG Vu CU920
Buy your LG Vu phone here right now!
The LG Vu is a great phone for those who want all of the features of a touchscreen phone and full multi-media.
The LG Vu CU920 for AT&T is a gorgeous new touch-screen cell phone capable of delivering one of the most robust multimedia entertainment experiences we’ve seen. The Vu supports AT&T’s MEdiaFLO Live TV service, and has a gigantic 3" touchscreen that rivals that of the iPhone or Verizon’s Voyager. In addition, the Vu offers a microSD slot for expandable memory, a full-featured music player, and supports quad-band GSM/UMTS connectivity. Note: AT&T Live TV is only available in certain markets.
Highlights
- View Beautiful Multimedia From Your Own Collection, or Via AT&T’s MediaFLO Service
- Gorgeous Touch-Screen Is Huge And Easy To Navigate
- Be One Of The First To Experience AT&T’s Mobile TV Service – Watch Live TV Wherever You Go!
- Full HTML Web Experience
- 2.0 Megapixel Camera/Camcorder Leads To Dazzling Photos and Videos
- Full Email and Messaging Experience With Virtual QWERTY Keyboard
- Bluetooth 2.0 Wireless Technology Supports Great Connectivity
- Incredibly Thin Form Factor – Slimmer Than The Competitors
What’s In The Box With The Phone
Advanced Features
Messaging Features
Personalization and Fun Features
Core Features
Battery Life
Technical Specifications
Compatibility Features
Recommended Optional Plan Features
Review of the LG CU920 Vu TV Touch Screen Phone While the LG CU920 Vu TV for AT&T is able to call itself a touch screen phone even though it’s not a smartphone, it can’t compete with the likes of the iPhone 3G and Samsung Instinct. Crystal Clear Screen Protection Film for LG Vu
I bought this screen protector for my LG VU, it was easy to put on (literally took 2mins) it fit the phone perfectly and protects against annoying fingerprints. It also comes with a cloth to wipe the screen clean.
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Posted in Cell Phone Reviews | 
Tags: cell phone, cellphone, cu290, lg vu, mobile, touch screen | 
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Convert Your Mobile Phone To A Modem For Accessing The Internet
December 25th, 2008
Using A Mobile Phone As A Modem For Accessing The Internet
What features and functionality should you understand in order to fully take advantage of accessing the internet via a mobile phone? Although this can appear complicated and involved … a little information goes a long way to "keep it simple".
For the sake of discussion …. let’s say you have a mobile handset with the following specifications:
Networks…
2G Network-GSM 900/1800/1900
3G Network-UMTS 2100
Data…
GPRS- Clause 10(4Ư/3ư slots),32-48 Kbps
3G-384 Kbps
You have configured the software application given with the phone on your laptop …. and once you connect the phone to the laptop using the USB connection you can access Internet. The settings used in the software application includes "call type=GPRS". The connection speed (downlink) is around 375 Kbps when checked through a freely available tool on the Internet …. and the phone’s modem speed is shown as 460.8 Kbps all the time( on the network connection). Since your speed is less than 384 Kbps (3G speed is given as the phone’s spec), you’re likely using 3G. Since GPRS is also supported, when the 3G coverage is not available, you’re probably able switch to GSM/GPRS.
Your service provider says they support EDGE,GPRS,3G and HSDPA/HSUPA.
Here’s some questions you may ask …..
* What are the theoretical maximum speeds of EDGE,GPRS, 3G?
* What is actually meant by 3G here?
* What is the underlaying technology used by my phone?
* Which method is better to connect the phone to the laptop; Bluetooth or USB?
* Your phone spec says Bluetooth v1.2 and USB2.0 and you’ve heard that USB2.0 (480Mbps) is faster than Blootooth v1.2 (1 Mbps). Is this correct? Will it make any difference, since your connection from phone to the Internet is 375 Kbps?
Here’s some feedback to help you work through such a scenario …. and the associated questions above:
For sure, the speed with USB 2.0 should be much better than that through Bluetooth (of any class).
3G is a network technology that should offer some extended data services in addition to the regular GSM features. However, I would recommend that you check with your service providers since they should have the exact specifications that you asked for.
Theoretical speeds for EDGE are up to 10 times those of GPRS. But again, since these depend on network configuration you need to check with the service provider.
Since your speed is less than 1 mb/s, frankly, it doesn’t matter if you use bluetooth or USB – the speeds cited are correct. I would use what is most convenient for you.
In any case, the edge/hsdpa connection speeds are still slower than either Bluetooth or USB, so they will not bottleneck your speed. So as long as your battery isn’t about to run out, you can connect however you choose to.
3G HSUPA is Third Generation High-Speed Uplink Packet Access – a 3G mobile telephony protocol, which offers increased data transfer speeds and capacity of up to 3.6 Mbps on the downlink and up to 1 Mbps on the uplink, under ideal conditions.
3G HSDPA 3.6 is a 3G High-Speed Downlink Packet Access mobile telephony protocol, which offers increased data transfer speeds and capacity of up to 3.6 Mbps on the downlink and up to 348Kbps on the uplink, under ideal conditions.
3G – Third Generation High-Speed Downlink Packet Access – offers increased data transfer speeds and ables customers to access the Internet and email from their cellphones.capacity of up to 1.8 Mbps on the downlink and up to 348Kbps on the uplink
EDGE (Enhanced Data rates for GSM Evolution) or EGPRS provides data transfer rates significantly faster than GPRS or HSCSD. EDGE increases the speed of each timeslot to 48 kbps and allows the use of up to 8 timeslots, giving a maximum data transfer rate of 384 kbps.
HSCSD (High Speed Circuit Switched Data) enables data to be transferred more rapidly than the standard GSM (Circuit Switched Data) system by using multiple channels. The maximum number of timeslots that can be used is four, giving a maximum data transfer rate of 57.6 kbps (or 38.4 kbps on a GSM 900 network). HSCSD is more expensive to use than GPRS, because all four slots are used simultaneously – it does not transmit data in packets. Because of this, HSCSD is not as popular as GPRS and is being replaced by EDGE.
GPRS – General Packet Radio Service is a mobile data service available to customers with GSM cellphones. With a GPRS connection, the phone is "always on" and can transfer data immediately, and at higher speeds: typically 32 – 48 kbps. An additional benefit is that data can be transferred at the same time as making a voice call.
I would recommend using USB as it is faster then Bluetooth. You will not have a bottleneck created by the bluetooth link.
Regarding the underlying technology …
When you phone is connected to a 3G network it will be using W-CDMA (Wideband Code Division Multiple Access) W-CDMA is the higher speed transmission protocol as used in the UMTS system, it is a third generation follow-on to the 2G GSM networks deployed worldwide.
When you phone is on 2G GSM it is using a form of TDMA (time division multiple access).
Again …. the main message is this: Wherever possible, simplify and make it convenient for you!
By: Michael Lemm
Article Directory: http://www.articledashboard.com
Michael is the owner of FreedomFire Communications….including Small Business Resources Cafe. Michael also authors Broadband Nation where you’re always welcome to drop in and catch up on the latest BroadBand news, tips, insights, and ramblings for the masses.
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Posted in Mobile Technology |
Tags: 3g.bluetooth, cellphone, edge, gprs, internet, laptop, mobile |
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GSM Cell Phones
December 25th, 2008
GSM Cellular Phone – 6 Powerful Must Have Benefits GSM Cellular Phones have been around since the early 1990’s. It is only recently that consumers have reaped the benefits of this new technology. Read on to learn more.
By design, the method of transmission for a GSM Cellular Phone is through Global System for Mobile (GSM) communication. Although this system was recognized in the past, it had been first employed on a commercial basis only back in 1991. Nowadays, most of the cell phones throughout the world use the GSM.
Because GSM utilizes the TDMA digital technology, the possibility exists to have up to three voices in one slot in contrast to the analog cell phones where only one voice had the ability to go into one slot. The GSM technology can do so because it utilizes digital compression along with its in-built encryption characteristic. Therefore, even in the event that the space used is the same, there will be more usage capacity.
There are numerous benefits in employing the GSM Cellular Phone for which it owes its amazing global popularity. Some of the most prominent advantages are itemized below:
1. You have the ability to use it as a SIM card – You can get a lot of freedom with the Subscriber Identification Module or the SIM card. You can gather all kinds of information on this chip and then utilize it in whatever other mobile set as and when you change it. The other kinds of sets do not offer this type of freedom to you.
2. Surpassing quality of sound – because the GSM Cellular Phone utilizes technology that is digital in nature, it allows the filtering out of every unnecessary background noises, thus leaving a loud and clear voice transmission for outstanding communication.
3. High Security – There is integrated security for the GSM Cellular Phone that no seperate telephone system has available without specifically requesting it. Therefore, you have the complete assurance that your two way conversation is both safe as well as secure at all time, and at anyplace without costing you any extra money.
International Options
4. It makes available international roaming capabilities – the GSM Cellular Phone can quite easily link up and associate to other international digital providers and thus furnish you with the independence of utilizing your cell phone even when you travel internationally abroad. Although the calls are somewhat costly, customers are happy to utilize this facility because it is hard to communicate to everyone of their new numbers as and while they travel.
5. Extended talk time – the digital technology provides a great deal longer talk time because the battery is utilized in the best practical way. This is additionally increased by the fact one can administer more than one call at any given time.
6. GSM Cellular Phone Extra Options – this kind of cell phone has the ability to incorporate Camera, MP3, FM radio etc., which makes this phone an outstanding entertainment gadget in addition to the useful accessory that it is.
Listen to Korbin Newlyn as he shares his insights as an expert author and an avid writer in the field of electronics. If you would like to learn more go to Cellular Phone Service advice and at Alltel Cellular Phone tips.
| By Korbin Newlyn Published: 11/8/2007 |
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Posted in Mobile Technology |
Tags: cell phone, cellphone, gsm, Mobile Technology, sim card, tdma |
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