Power saving techniques are described for paging operation. An example wireless communication method includes receiving, by a communication node, a signal-based wake up signal (WUS) that includes L symbols in time domain or a channel-based WUS that is included in a channel, where the signal-based WUS or the channel-based WUS is associated with the communication node or with a group to which the communication node belongs, and where the signal-based WUS or the channel-based WUS includes an indication information that indicates whether the communication node is triggered to monitor a paging occasion, and determining, by the communication node, whether to perform a paging related operation based on the indication information.