There has exist different TILE usage in marketing already especially for individual TILE
module, for NB the onboard TILE is more useful due to individual TILE is easy to remove.
However, individual TILE using its own battery and easy to replace but NB rely on system
power, even we build in an individual coin battery for onboard TILE it still hard to replace
that battery for user, therefore the system power still the best option for onboard TILE
To support TILE in each power state is required but the challenge is how we can save the
system power especially in MS support system since it consume much more power than
S4/S5. Same case for TILE ring function support, it need a device can output beep sound,
using buzzer have additional cost and might not able to put into slim unit but using
onboard audio codec will consume more power in MS mode, means in MS mode not only
BT/WLAN radios need to active but also audio path (codec/AMP…etc.) need to workable
also consume more power.
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INC, HP, "LESS POWER CONSUMPTION TO SUPPORT iTILE RING IN MS MODE", Technical Disclosure Commons, (June 18, 2021)