3.3.3
- Created by: Rachael Jenkins
- Created on: 22-04-14 13:04
View mindmap
- 3.3.3
- Mobile phone networks
- Cellular
- A base station links the mobile phone to the rest of the mobile and fixed phone network
- Telephone cables
- Cellular
- A base station links the mobile phone to the rest of the mobile and fixed phone network
- Telephone cables
- Radio links between antenna at base station and another at main telephone network
- 3 factors: Local terrain, Frequency band, capacity needed for given area
- Telephone cables
- A base station links the mobile phone to the rest of the mobile and fixed phone network
- Cellular
- Radio links between antenna at base station and another at main telephone network
- 3 factors: Local terrain, Frequency band, capacity needed for given area
- Telephone cables
- A base station links the mobile phone to the rest of the mobile and fixed phone network
- Satellite
- A mobile that connects to satellite - calls, texts, internet (slow) and video confrencing
- Geosynchronous
- Satellite
- A mobile that connects to satellite - calls, texts, internet (slow) and video confrencing
- Geosynchronous
- Fixed over the same point of earth, line of sight is needed between the phone and the satellite
- Low earth orbit
- Not fixed, circles the earth. signal is better as it reaches more areas due to movement
- Geosynchronous
- A mobile that connects to satellite - calls, texts, internet (slow) and video confrencing
- Fixed over the same point of earth, line of sight is needed between the phone and the satellite
- Satellite
- Low earth orbit
- Not fixed, circles the earth. signal is better as it reaches more areas due to movement
- Geosynchronous
- A mobile that connects to satellite - calls, texts, internet (slow) and video confrencing
- Phone use can be seen as antisocail as it discourages face to face communication
- Credit is needed which can seem expensive, battery life, and signal is needed
- It provides security as there is help just a call away
- Cellular
- Broadband connections
- Asymmetric digital subscriber line
- Uses copper cable, can be used for data and voice at the same time. Uses existing phone network so minimal disruption.
- Upstream - Uploading Downstream - Downloading
- Full duplex - messages can be sent and received at same time. Half duplex - sent or received
- Upstream - Uploading Downstream - Downloading
- Uses copper cable, can be used for data and voice at the same time. Uses existing phone network so minimal disruption.
- Cable
- Asymmetric digital subscriber line
- Mobile phone networks
Similar ICT resources:
Teacher recommended
Teacher recommended
Comments
No comments have yet been made