TransferJet Physical Layer block diagram : Features and Operation
The physical layer of the TransferJet protocol is responsible for enabling the direct wireless connection between devices. It determines the speed and reliability of data transmission by managing the frequency, modulation, and encoding techniques. In this tutorial, we’ll examine how the physical layer operates and what makes it crucial for TransferJet’s ultra-fast and secure data transfers using its transmitter block diagram.
Physical layer works as per TransferJet frame structure defined as per its standard specifications. The TransferJet frame typically consists of preamble, sync and payload.
The following are the functions performed at TransferJet physical (PHY) layer.
• Insertion of preamble used for synchronization.
• Insertion of header(SYNC) used to provide useful data payload information such as length.
• It does forward error correction.
• It does spreading using direct sequence spread spectrum technique.
• It does scrambling operation.
• It does modulation of the scrambled data.
PHY parameter | TransferJet Support |
---|---|
Chip Rate (Rc) | 560 MCPS |
Chip Duration(Tc = 1/Rc) | 1.786 nsec |
Symbol rate (Rs) | 280 MSPS |
RF carrier frequency | 4.48 GHz |
Modulation techniques | π/2 BPSK , DSSS |
FEC technique | 1/2 Convolutional Encoding , Reed Solomon Encoding |
Table-1: TransferJet PHY parameters
TransferJet physical layer (PHY) Transmitter

As shown in the figure-1, TransferJet physical layer consists of various modules as mentioned above. The data from upper layer(CNL layer) is broken into 224 byte blocks before being provided as input to the TransferJet PHY.
Conclusion
The TransferJet Physical Layer is integral to achieving the system’s high data transfer speeds and reliable communication. Its design ensures that devices can communicate efficiently even within a small radius. Understanding its functionality provides insight into how TransferJet maintains its competitive edge in the wireless communication landscape.
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