In an aspect, a UE (e.g., PUE or VUE) performs one or more sidelink positioning measurements on a first sidelink positioning signal between PUE and a VUE. The UE transmits measurement data based on the one or more sidelink positioning measurements to a RSU. The RSU receives the measurement data and determines a positioning estimate for the PUE. The RSU transmits the positioning estimate to the PUE, at least one VUE, or a combination thereof.

A position-determining apparatus, such as a GPS receiver, determines the position of the mobile device based on the time of flight of a transmitted probe signal using a method in which sections of the received signal is classified into two or more categories and accumulated according to categories before being used to compute the correlations familiar in the context of a matched filter. Using the method of the present invention to compute the correlations, and optionally applying additional time-saving techniques described herein, a position determination is achieved using arithmetic operations that are significantly reduced from that required in prior art methods to compute the correlations. The reduced number of arithmetic operations can reduce significantly the power consumption required of a device carrying out a method of the present invention, and thereby realizing a significant advantage.

Systems and methods for managing location-based messaging are provided. The location-based messaging may occur between users within a particular venue. A location-based messaging system may facilitate messaging between event attendees and service personnel at the venue, such as during times of emergency or other times when the location of one user is to be sent to and used by another user.

A method, a device, and a non-transitory storage medium are described in which a radio and core integrated layers service is provided. The service provides a direct mapping of a quality of service flow between a packet data unit layer and a service data adaptation layer associated with a user plane function and a central unit-user plane function without an intermediary mapping of a tunneling protocol in the user plane.

Methods and systems for transmitting location updates include determining a deviation distance, based on an extrapolated travel direction and an actual travel direction from a last updated location. It is determined that the deviation distance exceeds a deviation threshold. A location update is transmitted to a tracking server, responsive to the determination that the deviation distance exceeds the deviation threshold.

Embodiments described herein provide for system and methods to enable the secure streaming of real-time location data between electronic devices. One embodiment provides for a non-transitory machine-readable medium storing instructions to perform operations comprising creating record to specify a location streaming relationship between a first device registered with a first user account and a second device registered with a second online account, the record including a secret key. The record is stored to an online datastore and shared between the first user account and the second online account. The location data stream can be encrypted using the secret key stored in the record.

Embodiments described herein provide for system and methods to enable the secure streaming of real-time location data between electronic devices. One embodiment provides for a non-transitory machine-readable medium storing instructions to perform operations comprising creating record to specify a location streaming relationship between a first device registered with a first user account and a second device registered with a second online account, the record including a secret key. The record is stored to an online datastore and shared between the first user account and the second online account. The location data stream can be encrypted using the secret key stored in the record.

A radio frequency (RF) device includes a spatial orientation sensor and logic circuit configured to determine spatial orientation of the RF device relative to a reference position or relative to a RF transmitter. In particular, the RF device determines a distance between the RF receiver and the RF transmitter based on a received signal strength of the signal and a determined spatial orientation of the RF device, by determining an orientation compensation value from a stored orientation compensation profile and determining a resulting compensated received signal strength. The RF device is thereby able to determine distance in an orientationally-invariant manner.

In one embodiment, a method includes storing, by a tracking server, a hash value for each of one or more tracking devices associated with the tracking server. The method includes receiving, at the tracking server from a user device, a hash value associated with a tracking device, the hash value computed based on a static value uniquely associated with the tracking device and a dynamic value maintained by the tracking device. The method includes identifying, by the tracking server, the tracking device based on a comparison between one of the stored hash values and the received hash value. The method includes updating, by the tracking server, one or more records associated with the identified tracking device based on the receiving the hash value.

In one embodiment, a method includes storing, by a tracking server, a hash value for each of one or more tracking devices associated with the tracking server. The method includes receiving, at the tracking server from a user device, a hash value associated with a tracking device, the hash value computed based on a static value uniquely associated with the tracking device and a dynamic value maintained by the tracking device. The method includes identifying, by the tracking server, the tracking device based on a comparison between one of the stored hash values and the received hash value. The method includes updating, by the tracking server, one or more records associated with the identified tracking device based on the receiving the hash value.