Mediatek Navigation Update

[Germain Aguilera]

July21, 2011 - MediaTek Inc., a leading fabless semiconductor company for wireless communications and digital multimedia solutions, today announced its most advanced wireless combo chip designed to enrich multimedia experience with small footprint and long battery life for smartphones, tablets and portable devices. The MediaTek MT6620 integrates 802.11n Wi-Fi, Bluetooth 4.0+HS, GPS, and FM transmitter/receiver on a single chip with superior size and power benefits, making it the best solution for smartphones, tablets, and portable devices.

Since 1997, MediaTek has been a pioneering fabless semiconductor company and a market leader in cutting-edge systems-on-chip (SoC) for mobile devices, wireless networking, HDTV, DVD and Blu-ray. Our tightly-integrated, innovative chip designs help manufacturers optimize supply chains, reduce the development time of new products, and extend a competitive edge in crowded markets. Through MediaTek Labs, the company is also building a developer hub that will support device creation, application development, and services for the Internet of Things era. By building technologies that help connect individuals to the world around them, MediaTek is enabling people to expand their horizons and more easily achieve their goals. We believe anyone can achieve something amazing. And we believe they can do it every single day. We call this idea Everyday Genius and it drives everything we do. Visit mediatek.com for more information.

With the rapid development of the Internet of Vehicles, MediaTek's unique wireless communication technology portfolio that includes 5G, Wi-Fi, Bluetooth, GNSS navigation, and the capability for NTN (Non-Terrestrial Network) satellite communication gives it an industry advantage in the future of always-connected vehicles. Using a combination of high-speed telematics and top-performance Wi-Fi networking, Dimensity Auto Connect will help drivers stay consistently connected with the world around them.

Component diversity is essential to assure supply for the Dimensity Auto platform. With continuous investment in the automotive market, MediaTek is introducing Dimensity Auto Components to actively engage in innovative R&D to provide reliable automotive-grade chipsets and components for new generations of connected, intelligent vehicles.

A new partnership between Purdue University and Taiwanese semiconductor giant MediaTek suggests Indiana is on the right track as it begins a push to make the state a global magnet for semiconductor research and manufacturing.

MediaTek announced in late June that it will partner with Purdue University to create a new semiconductor design center in the Convergence Center for Innovation and Collaboration within the Purdue University Discovery Park District.

MediaTek, which provides chips for wireless communications, high-definition televisions, handheld mobile devices, navigation systems and consumer multi-media products, will work with Purdue on a chip design focused on engineering education. It will alsoconduct joint research with Purdue in next generation computing and communications chip design.

Founded in 1997 and operating in the U.S. since 2001, MediaTek employs more than 19,000 associates worldwide, including 500 employees in eight different locations along the U.S. coasts. MediaTek will begin hiring in West Lafayette for electrical engineeringand chip design positions soon, in addition to searching for an industry-leading technologist to lead the new center. MediaTek plans to create at least 30 high-paying positions to staff the center.

Indiana is home to more than 1,090 foreign-owned business establishments representing more than 40 countries and territories, including nine from Taiwan. In 2021, 47 foreign-owned businesses committed to locating or growing in Indiana.

The LS20031 is a high performance, reliable, and inexpensive GPS module. It is a great choice, since it has a 5Hz update rate, a backup power source for quick locks (time to first fix), and a small form factor. The only downside is that it doesn't come with a connector. There is some minor assembly required, but it is very simple.

The LS20031 uses the MediaTek MT3339, which can acquire up to 66 satellites at a time. The GPS module has a fast time to first fix (TTFF) and high sensitivity for applications that require navigation and tracking in dense foliage and urban canyons environments.

There is a red status LED that blinks when there is a fix. A fix means there are enough satellites in view to accurately calculate your position. Once there is a lock in continuous power mode, it will flash once per second when the position is fixed. Otherwise, this LED will remain off.

The input voltage is 3.3V. The Rx and Tx pins are 3.3V TTL tolerant. This means you will need a logic level conversion if you are using this with a 5V Arduino. The pinout is shown below for the bottom and top views. When using right angle headers and connecting the GPS receiver to a breadboard, the pins are mirrored. Make sure to connect to the correct pins when viewing from either side!

Commands can be sent to the module to configure settings. There is a handy program called Mini GPS that will help you configure your module. More information about configuration can be found on a blog post by DIY Drones: Using the 5Hz Locosys GPS with Arduino/ArduPilot. Configurable 10Hz update rate means you can get valid position, time, etc. data 10 times a second. Default setting is 1Hz.

The successful A-BeiDou verification of the MediaTek device under test (DUT) using the Rohde & Schwarz test system marks an important milestone in the GNSS evolution of positioning and navigation. It was the first time that the setup could be used to validate and verify a device for A-BeiDou location based services, according to the company.

The R&S TS-LBS is a test system for testing GNSS and network-based LBS. It consists of an R&S CMW500 as the base station simulator and an R&S SMBV100A GNSS simulator. The R&S CMW500 provides assistance data to the DUT and the R&S SMBV100A simulates the BeiDou satellites. The R&S TS-LBS test system can be used to obtain GCF and PTCRB certification as well as network operator specific certification for chip sets and mobile devices.

SKYLAB GPS modules are mostly developed based on mediatek MTK chip. MTK GPS module series are characterized by small size, low power consumption and ultra high sensitivity. mtk GPS modules are capable of fast and accurate positioning in urban canyons, under elevated areas with weak signals, etc.

We all love the great value of money and performance Mediatek powered phones offer, but we do wish they would offer better GPS! Thankfully we have a fix for that, keep reading to see how to fix poor GPS on Mediatek phones.

If you have a Mediatek mobile phone (MT6589, MT6589T etc) and you feel that the GPS is not working well or sometimes it takes a to long to lock on to a satellite, maybe this quick fix can do the trick for you! I have already posted this how-to in Spanish on Gizchina.es but here it is again in English.

I have tested this fix on the JiaYu G4 Advanced that we received last weekend, it worked for me and hope you will have similar success with other MTK powered phones (it is supposed to work with all the Mediatek chipset), I wait your feedback ?

And all the time that the EPO server cannot be reached , so you have to download by FTP the two files and copy and past them.

Better is pointing out to the manufactors of the phones to use a better anttenna

really? is this really needed for any Mtk phone or just the 6589 series?

I really have absolutely *no* complaints about GPS operation on my MTK6577 Zopo (ZP900). Works perfectly for me. Never had to tweak anything.

Hi Eduardo i have the basic Jiayu g4 with 1.2 ghz chip and i can say this fix definitely does make the phone lock on quicker 20 seconds I managed but with sygic sat nav which I tested it on it fails to keep a lock so is pretty useless for serious navigation any other ideas regards

download (on rooted phone) fasterGPS ( =org.fastergps) and let it re-write /system/etc/gps.conf according to your geographic location (or look at the bottom of this document for sample file) . it will change the NTP servers which help to sync the GPS.

download the EPO.dat file to /data/misc folder. Trying to download the file from MobileUncle Tools menu will 99% fail. will show progress 0. so either download it directly from MediaTek FTP : ftp epo.mediatek.com user: epo_alps pass: same as username (that FTP server is also down 90% of the time) or use the a nice App that bundles that chip EPO file: =com.chxdev.mtgps

open MobileUncle Tools and enter engineering mode (MTK), tab navigate to location , press Location Based services. make sure APGS tab has enabled A-GPS. switch to EPO tab: make it autodownload and also press explicit download (EPO idle button) in most cases EPO download file will fail as I explained later.

(credit to -phone-gps-software-fix-,MrG-kIRDEJ0 )

make sure you got a 3G/WiFi internet connection, go outside to the garden and open MobileUncle Tools and enter engineering mode (MTK) and enter YGPS menu . switch to Information tab press in this order: hot,full,A-GPS restart .now switch to satellite and you should start a sat fix. you should see after a minute like 8 satellite in the circles screen. sit and wait 8 minutes. you should see gradually the GPS picking up the signal.

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