Waging the War on Power in 3G Mobiles

Posted on Feb 6, 2014

Consumers of mobile wireless devices expect a workable, real-world balance of performance and battery life. This is particularly applicable in third-generation (3G) wireless designs, due to the fact that these devices will house more powerful and feature rich multimedia capabilities. With processor performance (Moore`s law) doubling every 18 month

Click here to download the full size of the above Circuit.

s and communications system performance (Shannon`s Law) doubling every 8. 5 months, battery energy density has not kept up —it doubles every ten years. This highlights a significant technology gap. To bridge this supply/demand power gap, system engineers need to implement an arsenal of technologies ranging from process, software, and circuit innovations to meet the power requirements of 3G phones. Let`s look at some of the tools in this arsenal in more detail. To meet the demands of 3G mobiles, many OEMs are looking at a dual- or triple-processor architecture to handle baseband processing tasks. However, when examining architectures, a single chip, which combines cores for baseband and application processing, has obvious advantages over multi-processor designs. Having separate and independent processing resources requires a sophisticated inter-processor communication network to perform data exchange and control. The complexity of this approach increases with each processor added to a baseband design. Thus, inter-processor communication can become a formidable design challenge to software and hardware designers. The complexity of inter-processor communication networking overhead reduces the processing performance available for end-user applications and increases power consumption, which results in reduced battery life and usage time for the end user. In addition, monitoring for the presence of wireless networks requires...

Visit page

Leave Comment

characters left:

Related Circuits

Color sensor

Color sensor. Colour sensor is an interesting project for hobbyists. The cir- cuit can sense eight colours, i.e. blue, green and red (primary colours); magenta, yellow.

Dew sensor

Dew sensor. Dew (condensed moisture) ad- versely affects the normal per- formance of sensitive electronic devices. A low-cost circuit described here can be used to.

Audio Visual Ringer

Audio Visual Ringer. Many a times one needs an extra telephone ringer in an ad-joining room to know if there is an incoming call. For example, if the telephone is installed in.

Multipurpose Circuit for telephone

Multipurpose Circuit for telephone. This add-on device for telephones can be connected in parallel to the telephone instrument. The circuit provides audio-visual indication of on-hook,.

Off line Telephone tester

Off line Telephone tester. Here is a circuit of an off-line telephone tester which does not require any telephone line for testing a telephone instrument. The circuit is so simple that.

Telephone Headgear

Telephone Headgear. Acompact, inexpensive and low component count telecom head- set can be constructed using two readily available transistors and a few other electronic.

Telephone line based audio muting and light on circuit

Telephone line based audio muting and light on circuit. Very often when enjoying music or watching TV at high audio level, we may not be able to hear a telephone ring and thus miss an important...

Telephone Ringer using 556 dual timers

Telephone Ringer using 556 dual timers. Using modulated rectangular waves of different time periods, The circuit presented here produces ringing tones similar to those produced by a telephone. The.

New Circuits

Zero consumption Anti-theft High power Code Switch for E-Bike Batteries

This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
Ultrasonic distance finder circuit

The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Simple Metal detector circuit with CD4030

Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Fully automatic watering circuit for flower pots

Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
Simple deep searching metal detector circuit

The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
Sub-Harmonic Bass Converter for Electric Guitars

The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
Echo Depth Sounding Sonar for Boats

In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
100W HiFi Audio Amplifier Circuit

This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
Plant-Pot Water Level Indicator Circuit

A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....

Create NOW your QR MENU for your Restaurant / Hotel / Bar / Caffe,

Comprehensive ordering/paying features. fully personalized to suit your Business.

Update Anytime! Easy and Simple!

Popular Circuits

2N2222 Crystal Oscillator

This crystal oscillator is designed to operate with fundamental crystals with less than 1 mW...

Plug-in speed control for tools or appliances

Most standard household appliances and portable hand tools can be adapted to variable -speed...

Wireless Color Sensor

Close to human perception and stable color sensing is an ubiquitous problem found in numerous...

Custom Fan Controller

This is the circuit diagram for each individual channel; Note: I replaced the 0. 1 uF timing...

INA321 322 a low-cost medium accuracy ECG machine ECG amplifier

As shown by INA321/322 constitute a low-cost, medium accuracy ECG machine ECG amplifier circuit...

Induction Balance Gold Metal Detector Circuit

This circuit really is the simplest inducer balancing metal detector (IB, Inductlon Balance) that...