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It's quite hilarious seeing bunch of skilled and intelligent hackers being excited regrading process known as "Handover" :) It is well known, and well documente
by hansor 5y ago
It's quite hilarious seeing bunch of skilled and intelligent hackers being excited regrading process known as "Handover" :) It is well known, and well documented in every single book in subject...
Worth to mention that there are 3 types of handovers:
- Intra-relations: user can be switched between various cells at same tower.
- Intra-relations but with handover to lower technology (let's say when 4g is not available[too much traffic], so you will be dropped to let's say 3g or even 2g cell)
- External-relations: relations between cells on different towers.
As for towers:
- Not all operators allows for local roaming between various operators.
- Most towers have 3-5 sectors (pizza slices), but it's not that unusual to see OMNI antennas(single sector for 360 degrees).
- capableweb 5y agoIt's quite hilarious seeing a supposedly "skilled and intelligent hacker" (since we're on Hacker News after all) being so excited to recite the article.
- OOPMan 5y agoIt's quite hilarious seeing the term "skilled and intelligent hacker" being used to describe HN users
- drvdevd 5y agoThe most interesting part of this article IMO is how the author built handover visualizations with unprivileged code and explained what was exposed in the API on Android vs iOS that was needed to do this. And they're quite good.
- vbsteven 5y agoHandovers can exist on a higher level as well. 10 years ago there were calling apps that could handover a WiFi VoIP call to the gsm network (not using voip but actual gsm) when the WiFi goes bad and later switch the same call back to WiFi.