Techniques are provided for performing channel stitching for cellular based radio frequency (RF) sensing. An example method of determining range information using joint communication and sensing includes receiving assistance data for joint communication and sensing operations, wherein the assistance data includes mixed numerology information indicating at least a first subcarrier spacing and a second subcarrier spacing, performing joint communication and sensing operations utilizing the first subcarrier spacing to receive communication symbols and the second subcarrier spacing to receive radio frequency sensing symbols, performing one or more channel stitching operations based on the received radio frequency sensing symbols, and determining range information based at least in part on the one or more channel stitching operations.