It can be understood that the processor in the embodiments of the present invention may be a central processing unit (CPU), a general purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or another programmable logic device, a transistor logic device, a hardware component, or any combination thereof. The processor may implement or execute various example logical blocks, modules, and circuits described with reference to content disclosed in the present invention. Alternatively, the processor may be a combination of processors implementing a computing function, for example, a combination including one or more microprocessors, or a combination of a DSP and a microprocessor.

Steps of the methods or algorithms described in the embodiments of the present invention may be directly embedded into hardware, a software module executed by a processing unit, or a combination thereof. The software module may be stored in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a removable magnetic disk, a CD-ROM, or a storage medium of any other form in the art. For example, the storage medium may be connected to a processing unit, so that the processing unit can read information from the storage medium, and store and write information into the storage medium. Optionally, the storage medium may be alternatively integrated into a processing unit. The processing unit and the storage medium may be disposed in an ASIC, and the ASIC may be disposed in a user terminal device. Optionally, the processing unit and the storage medium may be alternatively disposed in different components of a user terminal device.