This Allows Efficient Use Of The Limited Radio Spectrum Allocated To Mobile Services, And Lets Thousands Of Subscribers Converse At The Same Time Within A Given Geographic Area.
Once These Few Channels Were In Use By Customers, No Further Customers Could Be Served Until Another User Vacated A Channel. It Would Be Impractical To Give Every Customer.
A display which echoes the user's typing, and displays text messages, contacts, and more. The display is typically either a liquid-crystal display (LCD) or organic light-emitting diode (OLED) display.
A battery, providing the power source for the phone functions. A modern handset typically uses a lithium-ion battery (LIB), whereas older handsets used nickel–metal hydride batteries.
A central processing unit (CPU), the processor of phones. The CPU is a microprocessor fabricated on a metal–oxide–semiconductor (MOS) integrated circuit (IC) chip.
Additionally, Short-range Wi-fi Infrastructure Is Often Used By Smartphones As Much As Possible As It Offloads Traffic From Cell Networks On To Local Area Networks.
Cell Phone Companies Will Bring A Truck With Equipment To Host The Abnormally High Traffic.Capacity Was Further Increased When Phone Companies Implemented Digital Networks.
The Critical Advantage That Modern Cellular Networks Have Over Predecessor Systems Is The Concept Of Frequency Reuse Allowing Many Simultaneous Telephone Conversations In A Given Service Area.
Former Systems Would Cover A Service Area With One Or Two Powerful Base Stations With A Range Of Up To Tens Of Kilometres (Miles), Using Only A Few Sets Of Radio Channels Frequencies.
These Systems Have Dozens Or Hundreds Of Possible Channels Allocated To Them. When A Subscriber Is Using A Given Channel For A Telephone Connection, That Frequency Is Unavailable For Other Customers.
In The Local Cell And In The Adjacent Cells. However, Cells Further Away Can Re-use That Channel Without Interference As The Subscriber's Handset Is Too Far Away To Be Detected.
In Order To Handle The High Traffic, Multiple Towers Can Be Set Up In The Same Area (Using Different Frequencies). This Can Be Done Permanently Or Temporarily Such As At Special Events.
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