Abstract—With the introduction of low-power internet of things (IoT) and device to device (D2D) communications in the long time evolution (LTE) system protocol, the in-band interference from other user equipment (UE) with higher power requires special attention. These higher power devices (e.g., smartphones) may cause in-band interference against the lower power devices. To examine this possibility, we examine the inband spectra of an LTE UE with four different resource block configurations. The results show that as the number of allocated resource blocks decrease, the amount of ripple or "mirroring" increases within the channel's frequency band. This mirrored signal may raise the noise floor as observed by lower power devices. In turn, these devices may have to radiate more power to overcome this extra noise. Future work includes a study on the effects of this type of interference on: power, latency of victim UE as well as how the impact varies with network traffic (e.g., voice, real-time streaming, etc.).
2017 URSI the national Academics of Sciences-Engineering-Medicine
On the Impacts of In-Band LTE Emissions, 2017 URSI the national Academics of Sciences-Engineering-Medicine, Boulder, CO, US, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=924587
(Accessed December 4, 2023)