Coexistence for 3GPP LTE with other Mobile Systems

To ensure LTE system can coexist with other mobile systems operating in the same geographical area or LTE Base Station (BS) can be collocated with other mobile system BS, coexistence studies for LTE with other systems have been carried out in 3GPP. In this paper, we provide an overview of the coexistence studies that have been done. First we list the terminologies that are commonly used for coexistence studies, and explain how deterministic analysis can be done for the BS to BS interference scenario. Then we provide the system simulation methodology and assumptions used in the coexistence studies, and show some simulation results for the possible impacts with different system parameters. At last we provide the references to the 3GPP standards where the LTE BS and UE radio transmission and reception requirements are specified to facilitate LTE coexistence with other mobile systems.