science

Qualcomm Gobi

Qualcomm Gobi is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Qualcomm Gobi rather than just read about it. In short: Qualcomm Gobi is a family of embedded mobile broadband modem products by Qualcomm. Gobi technology 2 was designed to allow for any product with the embedded solution to connect to the internet anywhere a wireless carrier provides data coverage.

Key takeaways

Qualcomm Gobi belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Qualcomm Gobi to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Qualcomm Gobi from memory before moving on to harder problems.

Reference excerpt

Qualcomm Gobi is a family of embedded mobile broadband modem products by Qualcomm. Gobi technology 2 was designed to allow for any product with the embedded solution to connect to the internet anywhere a wireless carrier provides data coverage. One of the more notable products that contain a Gobi modem is the iPhone 4 for Verizon, which contains a MDM6600, however it does not take advantage of the support for HSPA+.

History On October 23, 2007, Qualcomm announced the first set of Gobi-enabled chipsets to be commercially available in the second quarter of 2008. The first chip produced by Qualcomm, the MDM1000, gained support from PC manufacturer HP as well as wireless carriers Vodafone and Verizon. Two years later, on February 11, 2009, Qualcomm announced the second generation of Gobi-enabled chipsets, the MDM2000. The MDM2000 added support for additional frequencies which are prevalent in Japan and rural Europe, improved uplink capabilities and other software upgrades. The third, and most recent, generation of Gobi-enabled chipsets was announced on March 23, 2010 however this generation consists of a total of 6 different chips which support different ranges of wireless standards and data rates. The reasoning behind the multiple chips was to address additional markets such as USB modems, e-readers, gaming devices and machine to machine commercial applications. Qualcomm also introduced software enhancements for select Mobile Data Modem (MDM) chipsets that enabled “a common Gobi software interface (API) across multiple hardware platforms.”

Products

The main feature of the Gobi modems is their support of multiple wireless standards such as GSM and CDMA. Newer modems also have support for 4G wireless standards such as HSPA+ and LTE, with a notable omission of WiMax. The extensive support of wireless standards allows consumers to choose between multiple carriers based on the modem present in their device. What standard the modem supports and at what rates depends on the chip being used. Below is a list of Gobi-enabled modem chipsets released by Qualcomm and their features: MDM1000:

Multi-mode modem EV-DO Rev. A support (CDMA) 800, 1900 MHz HSPA support with full backward compatibility with GSM, GPRS and EDGE 850, 1900, 2100 MHz for HSPA 850, 900, 1800, 1900 MHz for GSM/GPRS/EDGE Simultaneous GPS functionality MDM2000:

All the features of the MDM1000 Support for HSPA at 800 and 900 MHz Improved upload speeds for HSPA Improved GPS functionality, including support for Assisted GPS MDM6200:

Single-mode modem Only supports HSPA+ with data rates of up to 14.4 Mbit/s GPS functionality, including support for Assisted GPS MDM6600:

Multi-mode modem HSPA+ with data rates of up to 14.4 Mbit/s CDMA2000 1xEV-DO Rev. A/Rev. B support GPS functionality, including support for Assisted GPS MDM8200A:

Single-mode modem Only supports HSPA+ with data rates of up to 28 Mbit/s GPS functionality, including support for Assisted GPS MDM8220:

Single-mode modem Only supports Dual-Carrier HSPA+ with data rates of up to 42 Mbit/s GPS functionality, including support for Assisted GPS MDM9200:

Single-mode modem 4G(LTE) data rates of up to 100 Mbit/s with full backward compatibility to Dual-Carrier HSPA+ GPS functionality, including support for Assisted GPS MDM9600:

Multi-mode modem 4G (LTE) data rates of up to 100 Mbit/s with full backward compatibility to Dual-Carrier HSPA+ EV-DO Rev. A/Rev. B support GPS functionality, including support for Assisted GPS

Model Names and Real World Names

Awards Mobile Innovation Awards - Mobile Computing – LAPTOP Magazine.

See also Comparison of wireless data standards Qualcomm Snapdragon Qualcomm Snapdragon LTE modem

References

External links Gobi Homepage - [1] Archived 2011-02-07 at the Wayback Machine

Illustrations

Worked examples

Example 1 — a first encounter with Qualcomm Gobi

Start with the simplest possible case. Write down what Qualcomm Gobi claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Qualcomm Gobi before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Qualcomm Gobi ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Qualcomm Gobi

In research: Qualcomm Gobi appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Qualcomm Gobi in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Qualcomm Gobi is common in secondary-school and first-year university syllabi. It links to neighbouring topics Mobile web, Modems, Qualcomm, so understanding it makes those chapters shorter.
In everyday life: Look for Qualcomm Gobi outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Qualcomm Gobi in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Qualcomm Gobi means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Qualcomm Gobi out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Qualcomm Gobi in simple terms?

Why does Qualcomm Gobi matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Qualcomm Gobi?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Qualcomm Gobi.