A wireless communication quality visualizing device includes a display data generating unit which generates display data for displaying the communication quality from data on the communication quality collected by the multiple measurement devices in accordance with a measurement condition which can specify information for measuring the communication quality, a position determining unit which determines whether or not the measurement device has moved and for estimating a position of the measurement device after the movement, and a condition setting unit which changes the measurement condition when the position determining-unit determines that the measurement device has moved.

Various examples are provided for OOB interference and/or PAPR reduction in OFDM systems. In one example, a method includes generating a suppressing signal using channel state information (CSI) of a communication channel, where the length of the suppressing signal equals that of the OFDM symbol including a cyclic prefix (CP) and data portion; combining the OFDM symbol and the suppressing signal to generate a transmission signal, where the length of the suppressing signal is aligned with the length of the OFDM symbol; and communicating the transmission signal via the communication channel, which reduces and substantially aligns the length of the suppressing signal with a length of the CP at a receiving device. The CP and suppressing signal can be removed from the transmitted signal at the receiver using a CP removal matrix. In another example, a transmitting device includes OFDM encoding, signal suppression, combining circuitry to generate the transmission signal.

A method for estimating communication quality of a wireless network applied to an estimation device having a storage device and a processor is provided. The method includes the steps of: providing coordinate information of a plurality of nodes and at least two kinds of map data; associating the coordinate information of the nodes with the map data to map the nodes to the corresponding positions of the maps; extracting spatial feature data between any two nodes from the associated map data, wherein the spatial feature data include spatial distribution data and spatial attribute data; selecting one of a plurality of path loss models according to the spatial feature data between the two nodes and estimating a pass loss using the selected path loss model, thereby estimating the communication quality between the two nodes.

Methods, systems, and computer readable media for testing wireless devices is disclosed. In some examples, a system for testing wireless devices in wireless environments comprises a test server and a wireless device tester implemented on the test server. The test server includes at least one processor and memory storing, for each wireless device of different types of wireless devices, a wireless emulation waveform received from the wireless device during operation of the wireless device. The wireless device tester is configured for receiving emulation requests specifying wireless devices and wireless environments for testing. The wireless device tester is configured for transmitting, for each request, a responsive wireless emulation waveform to a wireless device emulator physically located in the specified wireless environment and determining a performance metric for the wireless device within the specified wireless environment.

A wireless device driving method includes hiding a header emulated with a second protocol in a payload of a packet defined with a first protocol and transmitting the emulated header at a transmission side, receiving the emulated header and an ambient signal at a reception side, and decoding the ambient signal according to the second protocol to obtain a bit sequence.

A cross-platform application is disclosed for shared spectrum operations and CPI management. The application and platform provide an exchange of information usable for CPIs to improve collection of the information required for reporting to the SAS. Some embodiments provide methods to map a floor plan by ray tracing to provide some of the information. In another embodiment, a method includes generating contour information of a floor(s) from two-dimensional and three dimensional models.

A measuring device 1 performs control to perform a reception sensitivity test of measuring a throughput of a signal under measurement, and repeating the measurement while changing an output level of a test signal at each measurement position corresponding to a plurality of orientations. The integrated control device 10 that performs the control includes a measurement situation display control unit 18d that displays a measurement progress display screen having a first display area for displaying a result of the reception sensitivity test up to the measurement position where the reception sensitivity test is completed, and a second display area for displaying a progress situation of the measurement of the reception sensitivity test at the measurement position at which the reception sensitivity test is started.

A wireless network operating system for communication between a plurality of nodes of a network is provided. The operating system can enable an operator to define a centralized network control problem at a high level, decompose automatically the network control problem into a set of distributed subproblems, each subproblem characterizing a local behavior of a single session or a subset of sessions or a single node or a subset of nodes or a single protocol layer or a subset of protocol layers, to generate in an automated manner a set of solution algorithms, and send the set of solution algorithms to each node for execution at an associated node controller to optimize the parameters of a programmable protocol stack based on local state information at each node. A network device for use at a node in a wireless network, a method of wirelessly communicating between a plurality of nodes in a network, and a method of providing a wireless network operating system are also provided.

A unique method/device for isolating the over-the-air segment within a mobile communications network is provided. A coordinated set of tests is run to isolate problems in an end-to-end network including over-the-air segment, wired, and core network segments. Test results are compared to identify which segment or components within a segment is failing. The testing device executes the same test in two differentiated modes. In one mode, the device acts as a mobile client device identified by subscriber identification data that communicates with the network base station over-the-air using the standard control and data protocols of the mobile network. In another mode, the testing device, identified by the same subscriber identification data, acts like the combination of the same Mobile Client Device(s) and a Network Base Station using a wired interface that is equivalent to the wired interface that connects the network base station to the rest of the wired network.

A passive intermodulation detection system is provided to remotely identify passive intermodulation at a base station site and diagnose the type of intermodulation and location of the non-linearity that is the source of the passive intermodulation. The passive intermodulation detection system can generate a test signal in a first band that is transmitted by an antenna. Another antenna can receive a signal in another band, and the passive intermodulation detection system can analyze the received signal to determine whether an intermodulation product due to a non-linearity is present. Based on the type of intermodulation product, period, order, frequency, and etc, the type and location of the non-linearity can be identified and canceled via a passive intermodulation canceling mechanism.