Debugging: Same Phones With Different Signal Levels?
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The document discusses why two identical phones can exhibit different signal levels despite being from the same brand and model. Factors include variations in chipset, software versions, internal damage, different network towers and frequencies, as well as differences in SIM provision and settings. It highlights the complexities in mobile connectivity and encourages further exploration on their website.
Debugging: Same Phones With Different Signal Levels?
- 1. Same Phones With Different Signal Levels? @3g4gUK
- 2. Same phones, different signal levels? A question that is often asked: 2 phones, same brand and make, same operator, on 4G, kept next to each other, has different signal level. How is this possible? ©3G4G
- 3. ©3G4G There can be many reasons, lets start looking at them one by one
- 4. Same phone, different model ©3G4G Different models of iPhone 6 This model supports TD-LTE while others don’t
- 5. Same phone, chipsets and variations ©3G4G • Phones can have different chipsets • For example iPhone 7 uses Qualcomm chipsets in some markets and Intel in others • The components can have +-1% variation but on an average this should not affect the total performance much • The phone can have internal damage that may not be externally visible
- 6. Software Versions ©3G4G Phone manufacturers often fix bugs that can affect performance
- 7. Phone cases can reduce your signal levels ©3G4G
- 8. Interference from other Radios in the Smartphone ©3G4G
- 9. You may be connected to different towers ©3G4G Connected to tower BConnected to tower A A B Same Frequency
- 10. f3 You may be connected to different frequencies ©3G4G f1 f2 Four Reasons: • One phone supports more bands • One phone has additional SIM services as part of subscription • SIM’s provisioned differently • One phone may have different settings
- 11. Some frequencies require VoLTE support in phone / SIM ©3G4G
- 12. Example of iPhone VoLTE setting ©3G4G 4G for Data VoLTE for Voice 4G for Data 2G/3G CSFB for voice
- 13. Thank You To learn more, visit: 3G4G Website – http://www.3g4g.co.uk/ 3G4G Blog – http://blog.3g4g.co.uk/ 3G4G Small Cells Blog – http://smallcells.3g4g.co.uk/ Follow us on Twitter: https://twitter.com/3g4gUK Follow us on Linkedin: https://www.linkedin.com/company/3g4g ©3G4G