For bluetooth and Wi-Fi the frequency is 2.4GHZ

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Priyanka Cody

Thank you Sir

Narendra Kumar Shukla

Bluetooth, Wi-Fi, Zigbee, and LTE-U use unlicensed band for data transfer, which was primarily meant for Industrial, Scientific or Medical use (ISM). It is either 2.4 GHz or 5 GHz. Your 2.4 GHz microwave oven used to be biggest potential interferer for Wi-Fi due to high power.

All these protocol co-exist in ISM band due to their rugged Medium Access Protocol (MAC), however; performance does degrade if multiple technologies are sharing same frequency spectrum in vicinity. e.g. CSMA/CA of Wi-Fi shall result in more waiting time in presence of LTE-U. Please refr to the following document for more details:

http://www.lteuforum.org/uploads/3/5/6/8/3568127/lte-u_forum_lte-u_sdl_coexistence_specifications_v1.3.pdf