A method of determining performance of a Radio Access Network (RAN) of a telecommunications network is disclosed in which the RAN covers an area that is divided into a plurality of unit cells. The method includes receiving a measured performance value of the RAN within at least one unit cell of the plurality of unit cells; receiving a simulated performance value of the RAN within each of the plurality of unit cells; identifying a unit cell that is associated with both a measured performance value and a simulated performance value; calculating, for the identified unit cell, a difference function between the simulated performance value and the measured performance value; and applying the difference function to the simulated performance value of at least one adjacent unit cell to the identified unit cell to determine a modified simulated performance value for the at least one adjacent unit cell.

The present disclosure discloses a four-dimensional over the air performance test method for a dynamic scene channel. By constructing a time-domain non-stationary dynamic scene channel model, and selecting over the air (OTA) probes of appropriate number, positions and power weight in a four-dimensional multi-probe anechoic chamber (4D-MPAC) test system through a probe selection algorithm, finally a 4D-MPAC dynamic channel test system for a target channel in a DUT test area is constructed, which makes a contribution to solve the current problem of OTA performance test for a time-domain non-stationary channel. The present disclosure aims to provide a four-dimensional multi-probe anechoic chamber (4D-MPAC) for the dynamic scene channel, which can effectively and accurately reproduce a target dynamic scene channel model in an anechoic chamber on the basis of reducing the cost of the test system as much as possible by constructing the dynamic scene channel model, and provide an index for judging the accuracy of constructing the dynamic scene channel model.

A user equipment (UE) may simulate transmissions received from a BS to perform on-device testing of the UE. For example, the UE may be configured to loopback uplink data from the UL data path and input the uplink data as simulated downlink data for processing in the DL data path. The uplink data may include data related to a video call or network diagnostics. The user application data generated by the application and proceeding through the UL data path may be used to validate the DL data path. Downlink control information (DCI) may be determined by the UE and provided to the DL data path to accompany the uplink data. The DCI may include simulated uplink grants and/or simulated downlink scheduling assignments. The simulated downlink scheduling assignments may be determined based on availability of the uplink data in the UE's memory.

A method, apparatus and computer program product are provided to accelerate the estimation of a radio model of a beamforming access point within a radio environment, such as a beamforming access point that has been newly added to or relocated. In a method, the presence of a first beamforming access point in a radio environment is determined and information is obtained regarding one or more of a plurality of beams that are transmitted by the first access point. The method then estimates the radio model of the first access point based at least upon: (i) at least some of the information regarding the one or more of the beams transmitted by the first access point and (ii) signal propagation characteristics of one or more existing access points in the radio environment as represented by respective radio models of the one or more existing access points.

A system, for managing wireless devices within a restricted area is disclosed, wherein the system constructs models, containing attributes/characteristics and at least prior history data information associated with wireless devices, wherein the information is used to determine whether the wireless devices are allowed to operate within the area by the device responding to a plurality of inquiries that require the device and/or the user to provide information which is compared to the modeled data.

A method and a closed-loop antenna impedance tuning (CL-AIT) system are provided. An input reflection coefficient is determined. The input reflection coefficient and a threshold value are compared to determine whether the input reflection coefficient is greater than the threshold value. In response to determining that the input reflection coefficient is greater than the threshold value, an optimal tuner code is determined based on a tuner code search algorithm. The optimal tuner code is applied to configure the CL-AIT system.

A technique capable of realizing improvement of utilization efficiency of resources such as frequency with respect to MIMO, beam forming, and the like is provided. A transmission/reception method according to an embodiment is a transmission/reception method of transmitting and receiving data between a transmission device 1 with a plurality of transmitting antennas and a reception device 2 with a receiving antenna, and includes: a generating step of generating, by the transmission device 1 or the reception device 2, characteristics of a plurality of pseudo propagation channels on a basis of characteristics of a plurality of actual propagation channels between the plurality of transmitting antennas and the receiving antenna, the characteristics of the plurality of pseudo propagation channels being characteristics similar to frequency characteristics to an extent that the frequency characteristic can be approximated with respect to the characteristics of the plurality of actual propagation channels; a transmitting step of creating, by the transmission device 1, one or more data to be transmitted by reflecting the characteristics of the plurality of pseudo propagation channels to a plurality of parallel and independent data, and transmitting the one or more data from the plurality of transmitting antennas as radio waves; and a receiving step of extracting, by the reception device 2, the plurality of parallel and independent data from one or more received data received as the radio waves by the receiving antenna on a basis of the characteristics of the plurality of pseudo propagation channels.

Discussed herein are devices, systems, and methods for decentralized device management. A method can include receiving a first message from a second device, implementing a first machine learning (ML) model that operates on the received first message and an observation to determine a next objective to be completed by the first device, and training a simulator to produce the first message based on the observation.

Systems and methods for a scalable test model for a cellular communications system having multiple different bandwidth and subcarrier combinations are disclosed. Embodiments of a method performed by a test node and corresponding embodiments of a test node are disclosed. In some embodiments, a method performed by a test node comprises generating a test signal for a particular bandwidth and subcarrier spacing combination, the test signal being in accordance with a test model that is scalable for a plurality of different bandwidth and subcarrier spacing combinations. By using the scalable test model, the test model can be flexibly used to test for different bandwidth and subcarrier spacing combinations.

A technique detects when a computer simulation controller such as a computer game controller is idle and, thus, that the simulation (game) should be paused immediately without waiting for an “AwayFromKeyboard” timer to time out by detecting whether the user has laid the controller down and gone away or simply is not responding.