Method and device for side-to-side communication between side terminals of power distribution network

The embodiment of the invention provides a side-to-side communication method and device between side terminals of a power distribution network, and belongs to the field of power distribution and the Internet of Things. The side communication method comprises the following steps: determining a link signal-to-noise ratio of direct communication between a main side terminal and a target side terminal; comparing the determined link signal-to-noise ratio with a preset link signal-to-noise ratio threshold; judging whether the main side terminal can directly communicate with the target side terminal or not according to a comparison result; under the condition that the main side terminal can directly communicate with the target side terminal, establishing a direct communication link between the main side terminal and the target side terminal so as to perform side-to-side communication; and under the condition that the main side terminal cannot directly communicate with the target side terminal, determining a relay si