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TransferJet PHYSICAL Layer(PHY) basics

This tutorial section on TransferJet basics covers following sub topics:
features and frame   physical layer   Protocol Stack  

This page on TransferJet physical layer(PHY) covers basic features of TransferJet physical layer and mention TransferJet PHY transmitter block diagram.

Physical layer works as per TransferJet frame structure defined in the specifications. The frame typically consists of preamble, sync and payload.

The following are the functions performed at TransferJet physical layer(TransferJet PHY).

• 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

TransferJet physical layer,TransferJet PHY

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.

TransferJet basic resources

TransferJet basic tutorial
TransferJet physical layer-PHY
TransferJet Protocol Stack


Other Physical Layers

•  Wireless physical layer overview
•  11b physical layer
•  11a physical layer
•  11n physical layer
•  GSM Physical layer
•  Zigbee Physical layer
•  Bluetooth Physical layer
•  WLAN 802.11ac Physical layer
•  WLAN 802.11ad Physical layer

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