156.25 bits / 576.92 μsec : 1 Time Slot of GSM


1 Time Slot = 1 Burst
8 Time Slots = 1 TDMA Frame

Tail Bits-Encrypted Data Bits-Stealing Flag Bit-Tng. Sequence(Midamble)-Stealing Flag Bit-Encrypted Data Bits-Tail Bits-Guard Period
Image result for gsm frame




156.25 bits / 576.92 μsec : 1 Time Slot of GSM (Burst)
or 156.25 bits per 0.57692 millisec
or 156.25 bits per 0.00057692 sec


3 hrs. 28 min. 53.76 sec or 12533.76 sec

156.25*8*26*51*2048 = = 3394560000 bits

=> 3394560000/


or

3.4 Gigabits of data in almost 3.5 hrs.

 270.83478 Kilobits of data in one second
or

GSM burst rate: 270 kbps

 1 burst lasts for around half milli-second.

  576.92 μsec -----------------> 1 Burst
1000.00 μsec ----------------> ? Bursts

? = 1000.00/576.92
? = 1.73334258 Bursts or

less than 2 bursts per second
or
less than quarter-to-two bursts per second (<1.75 bursts/sec)

Around 2 bursts per second

 1 bit duration around 3.7μsec

 GSM physical and logical channel concept


Image result for gsm frame


Image result for gsm frame


Image result for gsm frame

Image result for gsm frame

Image result for gsm frame

Image result for gsm frame



Image result for gsm frame


Image result for gsm frame







http://www.rfwireless-world.com/Tutorials/gsm-frame-structure.html

----------------------------------------------------------------------------------------------------------------------------------

http://e-jis.ncsi.iisc.ernet.in/

E-JIS: E-Journal Information Service
NCSI: National Centre for Science Information
IISC: Indian Institute of SCience
ERNET: Education and Research Network

Comments

  1. royaltaxipk25 August 2022 at 22:35

    Thanks for sharing such a great informative article. I really enjoyed while reading this article.
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    ReplyDelete

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