Flashcards
Wireless Tech Other than 802.11
Cards in this deck (31)
- 1Cellular uses what transmission Mode?FULL-Duplex
(Forward/Reverse) - 2802.11 uses what transmission Mode?Half-Duplex
- 3In GSM, who determines the base station to which it connects (Based on signal Strength)?The Phone
(mobile Subscriber) - 4T or F: In GSM the phone decides which tower to connect to (Signal strength).True
- 5GSM uses what... to enable a phone to share a single frequency for the reverse channel.TDMA
Time Division Multiple Access - 6TDMA divides the reverse channel into timeslots, each phone is allowed one time slot. This allows for how man speech channels per radio freq.8 Full rate
or
16 Half rate - 7Which 2G tech uses SIM card to empower the user?GSM
- 8IN GSM, What does the base station send to the mobile subscribers to know when exactly to transmit in order for signals to arrive at the base station in the correct time slot?Timing Advance Signals
- 9This 2 tech is a channel access method used over the air interface by various radio comms tech.CDMA
Code Division Multiple Access - 10CDMA employs what tech/modulation?DSSS
Direct Sequence Spread Spectrum - 11In CDMA, who told your phone which tower to connect to?The Base Station/Tower
- 12What is the (wizardry) 2 important things behind DSSS technology in CDMA?1) processes weak signals
2) allows every mobile subscriber to transmit on the same channel at the exact same time without interfering with each other - 13T or F: CDMA and GSM can cross streams.NO Sir
- 14Shit to know..Name that G: -1st handheld cellular phone -analog/voice only = ???1G
- 15Shit to know..Name that G: -Digital Voice/SMS2G
- 16Shit to know..Name that G: -Internet2.5G
- 17Shit to know..Name that G: -Faster Data Rates/no significant improvements3G
- 18Shit to know..Name that G: -All IP on Air Interfaces (phone to Tower)4G
(Phone to Tower) - 19In 3G, what is was the upgrade to GSM?UMTS
Universal Mobile Telecomms System - 20In 3G, What was the upgrade for CDMA?CDMA2000
- 21This type of cellular network, includes a significant increase in throughput, and mandate both voice and data transmit exclusively over packet-switched links4G
- 22What its the Transmission Mode for LTE?Full-Duplex
- 23What is the key thing to know about LTE? Long-Term EvolutionIt is exclusively IP-Based
- 24Bluetooth operates in what frequency and Modulation?2.4 GHz ISM, FHSS
Freq Hop Spread Spectrum - 25How does FHSS work in Bluetooth? Freq Hop Spread Spectrumchops up data being sent and transmits chunks of it while hopping in a pseudo-random pattern 1,600 times per second across 79 frequencies,
- 26This mode of Bluetooth, allows Bluetooth devices to be seen by other devices.Discoverable Mode
- 27This mode of Bluetooth, Bluetooth devices are hidden from conventional Bluetooth location methods.(cannot be seen)Non-Discoverable Mode
- 28T or F: ZigBee can operate in one of several frequencies, including the 2.4 GHz ISM BandTrue
- 29the term for the portion of a cellular network over which a mobile subscriber communicates across RF to a base station is called?Air Interface
- 30A base station sends control info to a mobile subscriber on a ______ channelforward
- 31A mobile subscriber sends control info to the base station/cellular network on a ______ channelReverse
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- college Wireless (Wireless Tech Other than 802.11) Flashcards on Wireless Tech Other than 802.11, created by jeriel.juarbe2031 on 06/10/2014.
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- jeriel.juarbe2031
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