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I'm honestly struggling to come up with a use case for a single iPhone to need more than 300 megabytes per second (2.4Gbps) of bandwidth at any given time. (Not

I'm honestly struggling to come up with a use case for a single iPhone to need more than 300 megabytes per second (2.4Gbps) of bandwidth at any given time. (Noting that 8K video, in fairly un-optimized scenarios, appears to need about 96Mbps—just 12 megabytes per second, or 4% of that "low" bandwidth.) What are you doing, streaming raw, uncompressed video from multiple sources to a single iPhone? If you've got that many devices you need to stream from...it seems to me that it makes sense to invest in some dedicated hardware to handle that, rather than expect to do everything with just an iPhone.

pzo 3y ago
for iPhones maybe not but for drones or AR devices if you want to stream 4k at 60fps or 120fps then there is a lot of data to send. You could use iPhone as Drone payload for doing some site/construction inspection etc. Same with drones - they can fly very fast so would be nice to stream at 4k@120fps. Drones or iphones can/have many camera including lidar, depthmap (trudepth)
- ilyt 3y ago
  That is only the case if you wanted to stream uncompressed data (which for drones is defeinitely not needed), so VR/AR maybe, anything else it would be a waste.
- ilyt 3y ago
  That is only the case if you wanted to stream uncompressed data (which for drones is definitely not needed), so VR/AR maybe, anything else it would be a waste.
  - pzo 3y ago
    compressing big video frames (4k) takes time. If your application is latency critical (and drones moving at 100km/h is) and you are streaming at 120fps you have only 8ms for video frame processing. Sometimes you also want uncompressed data (lidar, depthmap) not for human but for machine computer vision / processing.
    - deleted 3y ago
      [deleted]
- danaris 3y ago
  ...Then what was the point of specifically calling out the 2x2 MIMO antennae of the iPhone?
  - pzo 3y ago
    that 9.6Gbps speed mentioned in the article doesn't apply for most consumer devices because they have only 2 antennas. Only expensive routers have many antennas to reach such speed. Not sure if we can have 8 antennas in smartphones
supertrope 3y ago
Faster link speed allows the Wi-Fi radio to finish transmission faster and go to sleep prolonging battery life. TCP throughput is about half of the link rate. iPhones before the 15 Pro maxed out at 1200 Mbps link rate because they are 2x2 MIMO with 80 MHz max channel banwdidth.
- rubatuga 3y ago
  There may be diminishing returns on watts per bit, something that 10gbe Ethernet is not great at.
redox99 3y ago
Downloading big games (apple showcased Resident Evil village I believe)
- danaris 3y ago
  According to a quick DuckDuckGo search, RE Village's download size varies between about 26GB and 29GB depending on what platform it's for—let's just round to 30GB for convenience. At that size, and the speed I mentioned above, it would take less than 2 minutes (100 seconds, to be precise) to download the entirety of the game. I don't know about you, but I think expecting that a game like that download in less time than that—an operation you only have to do once, when you first install it—seems pretty excessive.

pzo 3y ago

for iPhones maybe not but for drones or AR devices if you want to stream 4k at 60fps or 120fps then there is a lot of data to send. You could use iPhone as Drone payload for doing some site/construction inspection etc. Same with drones - they can fly very fast so would be nice to stream at 4k@120fps. Drones or iphones can/have many camera including lidar, depthmap (trudepth)

ilyt 3y ago
That is only the case if you wanted to stream uncompressed data (which for drones is defeinitely not needed), so VR/AR maybe, anything else it would be a waste.
ilyt 3y ago
That is only the case if you wanted to stream uncompressed data (which for drones is definitely not needed), so VR/AR maybe, anything else it would be a waste.
- pzo 3y ago
  compressing big video frames (4k) takes time. If your application is latency critical (and drones moving at 100km/h is) and you are streaming at 120fps you have only 8ms for video frame processing. Sometimes you also want uncompressed data (lidar, depthmap) not for human but for machine computer vision / processing.
  - deleted 3y ago
    [deleted]
danaris 3y ago
...Then what was the point of specifically calling out the 2x2 MIMO antennae of the iPhone?
- pzo 3y ago
  that 9.6Gbps speed mentioned in the article doesn't apply for most consumer devices because they have only 2 antennas. Only expensive routers have many antennas to reach such speed. Not sure if we can have 8 antennas in smartphones

supertrope 3y ago

Faster link speed allows the Wi-Fi radio to finish transmission faster and go to sleep prolonging battery life. TCP throughput is about half of the link rate. iPhones before the 15 Pro maxed out at 1200 Mbps link rate because they are 2x2 MIMO with 80 MHz max channel banwdidth.

rubatuga 3y ago
There may be diminishing returns on watts per bit, something that 10gbe Ethernet is not great at.

redox99 3y ago

Downloading big games (apple showcased Resident Evil village I believe)

danaris 3y ago
According to a quick DuckDuckGo search, RE Village's download size varies between about 26GB and 29GB depending on what platform it's for—let's just round to 30GB for convenience. At that size, and the speed I mentioned above, it would take less than 2 minutes (100 seconds, to be precise) to download the entirety of the game. I don't know about you, but I think expecting that a game like that download in less time than that—an operation you only have to do once, when you first install it—seems pretty excessive.