A first wireless device and a second device may negotiate a configuration of an RF chain calibration process with each other. The configuration of the RF chain calibration process may include a number of calibration rounds. The second wireless device may exchange, in each calibration round in the number of calibration rounds, at least one RS and at least one feedback message with the first wireless device. The second wireless device may identify one or more calibration adjustment parameters for the second wireless device based on the RF chain calibration process. The second wireless device may communicate with another wireless device based on the one or more calibration adjustment parameters.

Methods, systems, and devices for wireless communications are described. The techniques described herein relate to user equipment (UE) reporting for a rake receiver configuration and setting transmission parameters. The UE receives, from a network entity, a request to provide a report indicative of one or more capability parameters associated with a rake receiver of the UE. The UE transmits, to the network entity, the report based on the one or more capability parameters. The UE receives from the network entity, signaling indicating a configuration to be applied to the rake receiver based at least in part on the report.

Disclosed are an OTA test method for a vehicle antenna system, a device and a storage medium. According to the method, the radio frequency performance of a physical layer of a whole vehicle antenna system can be tested, and the problem in the prior art that the test result of parts cannot accurately reflect the performance of the whole vehicle antenna system can be solved.

Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.

A disclosed method may include (i) initiating a cellular field testing tool that tests a condition of cellular network connectivity of a device under test, (ii) collecting logs of raw data from the cellular field testing tool based on the cellular field testing tool testing the condition of cellular network connectivity of the device under test, and (iii) applying autonomously, by the cellular field testing tool, an intelligent testing policy for a specific network condition test to the logs of raw data to output a binary decision of whether the specific network condition test passed or failed. Related systems and computer-readable mediums are further disclosed.

The present invention relates to a measurement instrument comprising: at least a first and a second input paths, wherein each input path is configured to receive a corresponding measurement signal from a device under test, wherein each measurement signal comprises a number of states; a calculation device connected to the at least first and second input paths, configured to calculate an error vector corresponding to each state of each measurement signal, and to produce an average error vector for each state based on the error vectors of each measurement signal corresponding to the same state; and a display device, adapted to create a constellation diagram based on the produced average error vector for each state.

This application discloses an information transmission method and apparatus, and a communication device. The information transmission method in embodiments of this application includes: A first device measures a first signal to obtain a first result corresponding to each receiving unit. The receiving unit includes a receiving antenna or a receiving channel. The first signal includes at least one of a reference signal, a synchronization signal, a data signal, and a special signal. The first device sends a first message. The first message includes at least one first result satisfying a first condition or at least one second result satisfying a second condition. Each second result is obtained by performing target operation processing on first results corresponding to two receiving units. A target operation is a division operation or a conjugate multiplication operation.

Systems, methods and apparatus are disclosed for automatic signal detection in an RF environment. An apparatus comprises at least one receiver and at least one processor coupled with at least one memory. The apparatus is at the edge of a communication network. The apparatus sweeps and learns the RF environment in a predetermined period based on statistical learning techniques, thereby creating learning data. The apparatus forms a knowledge map based on the learning data, scrubs a real-time spectral sweep against the knowledge map, and creates impressions on the RF environment based on a machine learning algorithm. The apparatus is operable to detect at least one signal in the RF environment.

A first wireless device and a second device may negotiate a configuration of an RF chain calibration process with each other. The configuration of the RF chain calibration process may include a number of calibration rounds. The second wireless device may exchange, in each calibration round in the number of calibration rounds, at least one RS and at least one feedback message with the first wireless device. The second wireless device may identify one or more calibration adjustment parameters for the second wireless device based on the RF chain calibration process. The second wireless device may communicate with another wireless device based on the one or more calibration adjustment parameters.

A method for performing antenna control in a wireless communications system with aid of joint decision of antenna selection and tuning for antenna performance optimization and associated apparatus are provided. The method may include: during a runtime stage among multiple stages, dynamically determining any action of a state change among multiple actions according to a set of runtime measurements and a pre-defined database in a storage device within the wireless transceiver device; and during the runtime stage, performing the any action to selectively adjust a hybrid state of the wireless transceiver device, the hybrid state being a combination of a switch state of a switch circuit for antenna selection within the communication control circuit and at least one tuner state of at least one antenna tuner for antenna tuning within the communication control circuit, for performing at least one adjustment among a switch state adjustment and a tuner state adjustment.