Embodiments of the disclosure generally relate to configuring a measurement gap. A network device obtains information about a first frequency region and a second frequency region. The first frequency region is being used for transmitting a first synchronization signal from a serving cell managed by the network device, and the second frequency region is used for transmitting a second synchronization signal from a neighbor cell of the serving cell. Then, the network device determines a configuration for a measurement gap based on the first and second frequency regions, and transmits the configuration for the measurement gap to the terminal device.