Question: Wireless and mobile communication QUESTION ONE [Total: 20 Marks] a. What do you understand by call roaming in mobile telephony? Explain the condition that will

Wireless and mobile communication

QUESTION ONE [Total: 20 Marks] a. What do you understand by call roaming in mobile telephony? Explain the condition that will occasion this feature and also explain the security feature on the mobile switch that handles this facility. U [7Marks] b. Explain briefly the operation of GPS. U [5 Marks] c. You are presented with the cellular topology as shown in figure 1; explain the interconnections between the various mobile generations. Data (IP) Network Voice (PSTN) Network P-GW EPC Core Network GGSN SGSN MSC S-GW MME RNC BSC Access Network RNS BSS ()) Node B (oh) (3) BTS eNodeb ho Air Interface 2G 2.5G UE UE MS 3G 4G Fig 1 U (8Marks]

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Wireless and mobile communication QUESTION FIVE [Total: 20 Marks] a. The GSM architecture shown in figure 4 is meant for 2G. Study this figure carefully, indicate the following abbreviation and...

14 a worldwide satellite-based tracking system that enables users to determine their position anywhere on the earth. A. Global systems Positioning B. Global positioning system C. Global placement...

I want answers to the case study below CASE STUDY The Rise, Fall, and Resurrection of Iridium: A Project Management Perspective The Iridium Project was designed to create a worldwide wireless...

The Rise, Fall, and Resurrection of Iridium: A Project Management Perspective The Iridium Project was designed to create a worldwide wireless handheld mobile phone system with the ability to...

please provide answers from 5 to 18 The Rise, Fall, and Resurrection of Iridium: A Project Management Perspective The Iridium Project was designed to create a worldwide wireless handheld mobile phone...

Hi- Please take a look at the attached Word document for detailed requirements on an 8-page evaluation. Let me know what you think, and we can discuss price, plus a healthy tip. Task: (1) The...

Crossing Borders: MTC's Journey through Africa You have two choices as a human being: to be a subject of history or a maker of history. We have chosen to belong to the second category. Dr. Saad...

Financial Statement Analysis Obtain a copy of the 2009 annual report for a publicly held firm. Try to obtain an annual report for a retail or manufacturing firm. Be sure that the financial statement...

How would you value AdMob at the end of 2009: (i) as a stand-alone firm, and (ii) as an acquisition target. ijcsm INTERNATIONAL Volume 11 JOURNAL OF CASE STUDIES Issue 1 IN MANAGEMENT April 2013...

Requirements for PART I Do you see any potential areas of risk that the partners in the Briarwood City office should consider regarding RCC? In your response, consider business risk to JKN, en-...

Select the member of group 4A that best fits each description: (a) Has the lowest first ionization energy (b) Is found in oxidation states ranging from -4 to +4 (c) Is most abundant in Earth's crust.

Certain wavelengths in the light from a galaxy in the constellation Virgo are observed to be 0.4% longer than the corresponding light from Earth sources. (a) What is the radial speed of this galaxy...

6 . Suppose a European Put has an Exercise Price of $ 1 1 0 . The Put expires in 4 5 days. Suppose the appropriate discount rate on T - Bills maturing in 4 4 days is 7 . 7 1 5 % . What is the maximum...

As manager of Precision Properties, you are considering the purchase of an apartment complex. The following assumptions are made: The purchase price is $2,000,000. Potential gross income (PGI) for...

Why do HCMSs exist? Do they change over time?

Suppose the price of oil falls sharply (as it did in 1986 and again in 1998). a. Show the impact of such a change in both the aggregate-demand/aggregate-supply diagram and in the Phillips-curve...

When did the shift from Text-based Business Application Software to GUI-based Applications begin?