It is the high power cell phone blocker scrambler

BP part of the operating system must be real-time operating system (RTOS), such as VxWorks, Nucleus, and ThreadX and so on. Task scheduling real-time operating system for each Layer all the functional modules, such as the far right of the vertical yellow box shown in Figure 12.4. Summarize, the BP part of the smart phone is actually a Modem. It only is the difference between feature phones, In addition to the SIM / USIM peripherals are retained, other peripherals and man-machine interface have all been removed and replaced to the AP side of the control interface, similar to the MTK system RMI reference to the Series Chapter 7, MTK mobile phone software system. The BP part of the smart phone into the vertical distribution of the Layers, corresponding to a different network transport protocols. It is the high power cell phone blocker scrambler.
The same time, horizontal split two Plane tab of the control and user, respectively, responsible for managing the information channel, and is responsible for the transmission of information entities. The BP part of the smart phone has a stand-alone real-time operating system, task scheduling, memory management, etc. The most basic operating system kernel module contains all the features of each Layer each Plane. CPU smartphone BP part of the structure is quite complex, corresponding to the different types of network, different regions of band segmentation, are difficult to general-purpose software and hardware. The SmartPhone AP part of the software system in Chapter 9, we mentioned that, from a functional perspective for smart phones is a rough generalization, smart phones == PC + mobile cards. Others can not find the use and existence of GPS  cell phone jammer .
Or, more precisely, the hardware structure of the smart phone into the application processor AP, and the baseband processor BP in two parts. Implies two issues, the BP portion of the AP part of the integration. (2) the traditional feature phones equipped with factory-installed software applications, and does not allow the user to download and install third-party application software, smart phones exceeded this limit, the AP part of the smart phone, there must be corresponding open mechanism to facilitate third-party software development and installation, to minimize third-party software to cause malicious damage to the entire system, including other software. Further, the opening mechanism of the smart phone. This kind of GPS cell phone jammer  is the ideal tool or assistant for the customer.
Not only for third-party software, but also for mobile phone manufacturers, which allows mobile phone manufacturers to replace part of the hardware of the phone system, or addition of other peripheral hardware devices, so that a common platform can be shipped more than one phone model to help mobile phone manufacturers minimize mobile phone R & D costs. The first question, part of BP and AP part of integration, the idea of the solution is very simple. Open the textbooks of any one operating system, you can see the hierarchical structure of the standard, application software >> operating system >> drive >> hardware. May wish to the integration of BP and AP, compared with the composition of the operating system's file system. The file system usually consists of the Virtual File System Virtual File System (VFS) and the actual storage device (Storage Device) in two parts. It is better not to place cell phone jammer in high voltage and high magnetism locations.
The actual storage devices including flash memory or hard disk storage hardware, and the corresponding drive. The virtual file system storage hardware, the drive to manipulate files and folders creation and deletion, file read and write, and so function on this basis. Virtual file system known as the virtual, is a function of software applications through standard interfaces (APIs), to call the virtual file system, files and folders, and the actual storage devices, whether the use of which vendor products hardware and the drive has nothing to do [1]. If the file system storage system analogy to the BP part of the smart phone, then the virtual file system that corresponds to the AP part of the Telephony Stack. Nowadays,  cell phone jammer always continuously sends the high-power radio frequency interference signal out during working.