What is meant by uplink and downlink frequency?

Uplink frequency is the frequency at which, the first earth station is communicating with satellite. The satellite transponder converts this signal into another frequency and sends it down to the second earth station. This frequency is called as Downlink frequency.

Why downlink is higher than uplink?

Since a mobile station (cellphone) cannot afford to transmit at high power to compensate for this loss, it must transmit on a lower frequency as a lower frequency presents lesser free space path loss. Therefore, mobile-to-base station (uplink) frequencies are lower than base station-to-mobile(downlink) frequencies.

What is downlink in LTE?

In the downlink, the subcarriers are split into resource blocks. This enables the system to be able to compartmentalise the data across standard numbers of subcarriers. Resource blocks comprise 12 subcarriers, regardless of the overall LTE signal bandwidth. They also cover one slot in the time frame.

What do you mean by uplink?

Definition of uplink 1 : a communications channel for transmissions to a spacecraft or satellite also : the transmissions themselves. 2 : a facility on earth for transmitting to a spacecraft or satellite. Other Words from uplink Example Sentences Learn More About uplink.

Why uplink frequency is less than downlink in mobile communication?

What is uplink transmission?

Pertaining to radiocommunication service, an uplink (UL or U/L) is the portion of a feeder link used for the transmission of signals from an earth station to a space radio station, space radio system or high altitude platform station.

Why uplink and downlink frequencies are different in mobile communication?

What is uplink data?

In satellite communication, uplink means that data are being passed from any earthbound terminal or device up towards the satellite. The opposite of this is a downlink, where the communication is coming from the satellite towards any earthbound device.

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