A policy and charging rules function (PCRF) device includes a memory storage comprising instructions, at least one network interface, and at least one processor coupled to the memory and to the at least one network interface. The instructions are executed by the at least one processor to receive a policy request of a first user sent by a gateway device; determine, according to the policy request, that the first user needs to use a counter of a second user; acquire a current status of the counter of the second user using a session of the second user established between the PCRF device and a charging system; and generate a control policy of the first user according to the current status of the counter of the second user and send the control policy to the gateway device.