What is difference between uplink and downlink?
In satellite telecommunication, a downlink is the link from a satellite down to one or more ground stations or receivers, and an uplink is the link from a ground station up to a satellite. Some companies sell uplink and downlink services to television stations, corporations, and to other telecommunication carriers.
Why downlink is higher than uplink in GSM?
It say basically the power at ground stations is more as compared to power available at satellites.So generally frequency for uplink is kept higher than the downlink. There is greater attenuation due to rain when the signal frequency is high.so downlink is also kept at lower frequency.
What is the difference between uplink and downlink frequencies?
The uplink frequency is the frequency which is used for transmission of signals from earth station transmitter to the satellite. The downlink frequency is the frequency which is used for transmission of signals from the satellite to the earth station receiver.
What is uplink in cellular communication?
In cellular networking, an uplink is seen from the user perspective as it pertains to the communication link of any cellular device sending data towards the cellular base station. For example when sending a text message, the phone creates an uplink with the base station in order to send the text message.
Why downlink data rate is higher than uplink?
The allowable pathloss for Downlink is more compared to that of the Uplink. (Because UE TX power is limited and NodeB power is much higher). Hence the data rate in the downlink is higher compared to that in the uplink.
Why uplink and downlink frequencies are not same in satellite?
Uplink frequency is different from downlink frequency for following reason: The satellite transmitter generates a signal that would jam its own receiver; if both uplink and downlink shared the same frequency.
What is uplink and downlink in switch?
Posting. An uplink port generally means a port used that connects toward the core of the network. A downlink port generally mean the converse. In this particular usage, the switch’s downlink ports are dual speed copper ports. The uplink ports are gig and copper/fiber capable.
What is UPLINK and downlink in GSM?
In GSM network, the packet transmission from MS to BTS is known as uplink where as from BTS to MS is known as downlink. In GSM frequency range from 890 MHz to 915 MHz is used as uplink frequency where as 935 MHz to 960 MHz is used as downlink frequency. Refer GSM system tutorial>>. What is Downlink?
What factors affect uplink and downlink speeds?
However, there’re certain factors that can (and commonly do) interfere with signal transmission, thus disrupting uplink and downlink speeds. These factors may include the following: The Distance from Your Cell Tower: It is very difficult for your cell phone to communicate with a cell tower when you’re too far away.
What is the difference between uplink and downlink in VSAT?
Refer VSAT System Overview>> . In GSM network, the packet transmission from MS to BTS is known as uplink where as from BTS to MS is known as downlink. In GSM frequency range from 890 MHz to 915 MHz is used as uplink frequency where as 935 MHz to 960 MHz is used as downlink frequency.
What is the downlink frequency range of GSM?
As mentioned above in C band satellite network, 3700 to 4200 MHz is used as downlink frequency band. In GSM, frequency range from 935 MHz to 960 MHz is used as downlink frequency range. The RF unit called upconverter is used to convert baseband frequency to RF frequency for transmissions in the uplink side.
https://www.youtube.com/watch?v=ChX3Q2avQZM