A method for increasing a paging response speed of a user equipment, UE, comprising: camping, by the UE, on a first cell of a first network; requesting, by the UE, to establish a Radio Resource Control RRC connection to the first network; entering, by the UE, a Radio Resource Control RRC connected state after the UE establishes the RRC connection to the first network; in response to an indication for an RRC inactive state that is received from an access network device, entering, by the UE, the RRC inactive state and storing a UE context of the UE in the RRC inactive state; and when a preset condition is met, camping, by the UE, on a second cell of the first network, wherein the UE is in the RRC inactive state, and the first cell and the second cell are the same or different; wherein the camping, by the UE, on a second cell of the first network when a preset condition is met, wherein the UE is in the RRC inactive state, comprises: when the preset condition is met, camping, by the UE, first on a third cell of a second network and then on the second cell of the first network, wherein when the UE reselects the third cell of the second network, the UE does not delete the stored UE context, enters the RRC idle state of the second network, and after the UE reselects the second cell of the first network, the UE enters the RRC inactive state from the RRC idle state based on the stored UE context. camping, by the UE, on a first cell of a first network; requesting, by the UE, to establish a Radio Resource Control RRC connection to the first network; entering, by the UE, a Radio Resource Control RRC connected state after the UE establishes the RRC connection to the first network; in response to an indication for an RRC inactive state that is received from an access network device, entering, by the UE, the RRC inactive state and storing a UE context of the UE in the RRC inactive state; and when a preset condition is met, camping, by the UE, on a second cell of the first network, wherein the UE is in the RRC inactive state, and the first cell and the second cell are the same or different; wherein the camping, by the UE, on a second cell of the first network when a preset condition is met, wherein the UE is in the RRC inactive state, comprises: when the preset condition is met, camping, by the UE, first on a third cell of a second network and then on the second cell of the first network, wherein when the UE reselects the third cell of the second network, the UE does not delete the stored UE context, enters the RRC idle state of the second network, and after the UE reselects the second cell of the first network, the UE enters the RRC inactive state from the RRC idle state based on the stored UE context. when the preset condition is met, camping, by the UE, first on a third cell of a second network and then on the second cell of the first network, wherein when the UE reselects the third cell of the second network, the UE does not delete the stored UE context, enters the RRC idle state of the second network, and after the UE reselects the second cell of the first network, the UE enters the RRC inactive state from the RRC idle state based on the stored UE context.