CPC Class G01S

Systems, methods, and non-transitory media are provided for localizing and mapping smart devices. An example method can include receiving, by an extended reality (XR) device, an identification output from a connected device that is coupled directly or indirectly to the XR device, the identification output including an audio pattern, a display pattern, and/or a light pattern; detecting the identification output from the connected device; and based on the identification output from the connected device, mapping the connected device in a coordinate system of the XR device.

A method for monitoring an RF receiver includes generating of a digital test signal based on a signal, wherein the digital test signal includes a stream of digital test samples having a digital test sample; generating a monitoring signal based on the digital test signal; and coupling of the monitoring signal into a receiver path. The monitoring signal is processed in the receiver path to generate a processed monitoring signal and a stream of digital monitoring samples representing the processed monitoring signal. Information is determined indicating at least one property related to the receiver path based on a processing of a set of digital monitoring samples of the stream of digital monitoring samples. The set of digital monitoring samples includes a digital monitoring sample. The method further includes controlling the RF receiver such that the digital monitoring sample is generated a predetermined time duration after generating the digital test sample.

Embodiments relate to systems for generating identity records (e.g., authentication certificates) at a server for validating broadcast messages. The server may receive a request to generate an identity record, where the request may include a public key of a named entity device that is configured to broadcast messages. The server may generate the identity record using the private key of the server and transmit the generated certificate to a namespace server for storage. A policy consuming device configured to receive a broadcast message, which may be signed using the private key of the named entity device, subsequently accesses the namespace server for the identity record including the public key of the named entity device. The policy consuming device validates the authentication certificate using the server's public key and validates the broadcast message using the named entity device's public key.

A method for determining a reliability of a wireless device to estimate its location under a simulated environmental condition includes simulating an environmental condition inside a test chamber by controlling a physical parameter. The test chamber contains the wireless user device configured to estimate a location of the wireless user device based on reference signals received from a signal source. The method includes communicating a pattern of reference signals having varying signal propagation characteristics in the test chamber. The method includes receiving an indication of an estimated location calculated by the wireless user device based on the pattern of reference signals. The reliability of the wireless device to estimate its location under the simulated environmental condition is determined based on a comparison of the estimated location with the simulated location.