Aspects of the disclosure relate to mechanisms for sidelink communication across frequency bands. In some examples, a wireless communication device may be configured to communicate over a first frequency band (e.g., a “sub-6 GHz band”) and a second frequency band (e.g., a “millimeter wave band”) with one or more other wireless communication devices. The wireless communication device may further be configured to perform cross-link scheduling of a transmission in which sidelink control information (SCI) is transmitted within a physical sidelink control channel (PSCCH) on the first frequency band and data corresponding to the SCI is transmitted within a physical sidelink shared channel (PSSCH) on the second frequency band.