A communication method applied to a first user equipment, the method comprising: causing, a first task to be executed by using a second user equipment to obtain a first result, wherein the first result is used for communication with a network device, and wherein the first result comprises at least one piece of the following information: paging information, information about a cell to be camped on or a serving cell, a serving cell measurement result, a neighboring cell measurement result, system information or updated system information of a cell to be camped on or a serving cell, information about a cell to be camped on or a serving cell that is obtained after cell selection or cell reselection, uplink transmit power information or uplink transmit power adjustment information used in a serving cell, or uplink timing advance information or uplink advance adjustment information used in a serving cell; and receiving, the first result from the second user equipment; and communicating, with the network device by using the first result; the method further comprising: executing, only a second task, wherein the second task comprises tasks other than the first task in the following tasks: cell search, cell measurement, cell selection, cell reselection, cell system information change listening, cell system information reception, cell paging message listening, cell paging message reception, determining uplink transmit power information or uplink transmit power adjustment information used in a serving cell, determining uplink timing advance information or uplink advance adjustment information used in a serving cell, determining a tracking area, and determining to update a tracking area; characterized in that before executing the first task by using the second user equipment, the method further comprises: receiving, first indication information from the second user equipment, wherein the first indication information is used to instruct the first user equipment to execute the second task. causing, a first task to be executed by using a second user equipment to obtain a first result, wherein the first result is used for communication with a network device, and wherein the first result comprises at least one piece of the following information: paging information, information about a cell to be camped on or a serving cell, a serving cell measurement result, a neighboring cell measurement result, system information or updated system information of a cell to be camped on or a serving cell, information about a cell to be camped on or a serving cell that is obtained after cell selection or cell reselection, uplink transmit power information or uplink transmit power adjustment information used in a serving cell, or uplink timing advance information or uplink advance adjustment information used in a serving cell; and receiving, the first result from the second user equipment; and communicating, with the network device by using the first result; the method further comprising: executing, only a second task, wherein the second task comprises tasks other than the first task in the following tasks: cell search, cell measurement, cell selection, cell reselection, cell system information change listening, cell system information reception, cell paging message listening, cell paging message reception, determining uplink transmit power information or uplink transmit power adjustment information used in a serving cell, determining uplink timing advance information or uplink advance adjustment information used in a serving cell, determining a tracking area, and determining to update a tracking area; characterized in that before executing the first task by using the second user equipment, the method further comprises: receiving, first indication information from the second user equipment, wherein the first indication information is used to instruct the first user equipment to execute the second task. executing, only a second task, wherein the second task comprises tasks other than the first task in the following tasks: cell search, cell measurement, cell selection, cell reselection, cell system information change listening, cell system information reception, cell paging message listening, cell paging message reception, determining uplink transmit power information or uplink transmit power adjustment information used in a serving cell, determining uplink timing advance information or uplink advance adjustment information used in a serving cell, determining a tracking area, and determining to update a tracking area; characterized in that before executing the first task by using the second user equipment, the method further comprises: receiving, first indication information from the second user equipment, wherein the first indication information is used to instruct the first user equipment to execute the second task.