Issue link: https://read.uberflip.com/i/1423190
LoRa Alliance ® Whitepaper Page 14 of 49 LoRaWAN ® Gateways Radio Coexistence Issues and Solutions Copyright ©2021 LoRa Alliance, Inc. All rights reserved. www.lora-alliance.org Figure 11: Isolation between LTE and 6dBi LoRa antenna vs distance separation vs horizontal and vertical plane. Vertical isolation is therefore the best solution for LTE coexistence. A 3-meter separation allows 59dB isolation in this case. 3.3 OUT-OF-BAND SPURIOUS EMISSIONS GENERATED BY CELLULAR BASE STATIONS Out-of-band spurious emissions calculations detailed in this section are extracted from the European Telecommunications Standards Institute (ETSI) TS 136 104 V15.8.0 (see [5]) detailing LTE base station radio transmission and reception specifications. The output RF spectrum emissions for the LTE transmitter consist of three components: the occupied bandwidth (channel bandwidth), the out-of-band (OOB) emissions, and the far-out spurious emission domain (see Figure 12): • Channel bandwidth: range occupied by the LTE channel