Methods and devices for scrambling and descrambling signal, and storage medium

An apparatus for scrambling a signal, applied to a first transmission node and comprising a processor and a memory for storing execution instructions that when executed by the processor cause the processor to perform steps in following modules:

• a determination module, which is configured to determine first parameters for scrambling a signal to be transmitted or a signal group to be transmitted;
• a first scrambling module, which is configured to scramble the signal or the signal group according to the first parameters;
• and
• a first sending module, which is configured to send the scrambled signal or the scrambled signal group to a second transmission node, and notify part or all of the first parameters to the second transmission node through first signaling.