An elevator system having a controller configured for: receiving a communication from the mobile device for a passenger, the communication including first data, wherein the first data is position data obtained by the mobile device executing a multilateration (MLAT) process with one or more proximately located telecommunication devices, rendering a first determination, from the first data, that the mobile device is proximate a first distance from the lobby, rendering a second determination, from the first determination, arrive at the lobby proximate a first time, and transmitting a communication to an elevator instructing the elevator to arrive at the lobby proximate the first time to provide elevator service.

Embodiments are disclosed for a feature-based simultaneous localization and mapping (SLAM) system and method that generates radio maps for environments that are not accessible for surveying. More accurate radio maps are generated for an unsurveyed environment by determining a best estimate of a mobile device state from harvested traced data that maximizes a posterior probability of the mobile device state given measurements, landmarks and loop constraints.

It is provided a method for detecting when a user equipment, UE, is airborne. The method is performed in a UE status detector and comprises the steps of: obtaining an indicator of variation of signal strengths for signals received in the UE, wherein the signals are transmitted for at least three different cells; and determining, based on the indicator of variation, when the UE is airborne.

It is provided a method for detecting when a user equipment, UE, is airborne. The method is performed in a UE status detector and comprises the steps of: obtaining an indicator of variation of signal strengths for signals received in the UE, wherein the signals are transmitted for at least three different cells; and determining, based on the indicator of variation, when the UE is airborne.

Method and device in a node used for wireless communications. A first node receives first configuration information; transmits a first positioning reference signal on a first time-frequency resource block, transmits a second positioning reference signal on a second time-frequency resource block, and transmits a first information set; the first configuration information is used for indicating a first reference set, and any two time-frequency resource blocks in the first resource set employ a same positioning-related parameter; the first time-frequency resource block is earlier than the second time-frequency resource block in time domain; the first information set comprises a first distance, and the first distance refers to a distance from a first geographical position and a second geographical position, wherein the first geographical position is where the first node is located when transmitting the first positioning reference signal. The present disclosure provides an effective solution to the issue of sidelink positioning.

Method and device in a node used for wireless communications. A first node receives first configuration information; transmits a first positioning reference signal on a first time-frequency resource block, transmits a second positioning reference signal on a second time-frequency resource block, and transmits a first information set; the first configuration information is used for indicating a first reference set, and any two time-frequency resource blocks in the first resource set employ a same positioning-related parameter; the first time-frequency resource block is earlier than the second time-frequency resource block in time domain; the first information set comprises a first distance, and the first distance refers to a distance from a first geographical position and a second geographical position, wherein the first geographical position is where the first node is located when transmitting the first positioning reference signal. The present disclosure provides an effective solution to the issue of sidelink positioning.

An apparatus for determining a passing time of a passive RFID sports timing transponder includes a housing for protecting the apparatus; an RFID reader unit connected to an RFID antenna for remotely determining an identity and a passing time of the transponder; a location unit for determining a location of the apparatus; a mobile communication unit connected to a mobile communication antenna for transmitting the identity and the passing time of the transponder and the location of the apparatus to a processing unit; and a communication unit for communicating with another similar apparatus in an immediate spatial vicinity to synchronize operation of the RFID reader unit and an RFID reader unit of the similar apparatus to avoid interference. The RFID reader unit, the RFID antenna, the location unit, the mobile communication unit and the neighbor communication unit are integrated in a common printed circuit board that is mounted within the housing.

An apparatus for determining a passing time of a passive RFID sports timing transponder includes a housing for protecting the apparatus; an RFID reader unit connected to an RFID antenna for remotely determining an identity and a passing time of the transponder; a location unit for determining a location of the apparatus; a mobile communication unit connected to a mobile communication antenna for transmitting the identity and the passing time of the transponder and the location of the apparatus to a processing unit; and a communication unit for communicating with another similar apparatus in an immediate spatial vicinity to synchronize operation of the RFID reader unit and an RFID reader unit of the similar apparatus to avoid interference. The RFID reader unit, the RFID antenna, the location unit, the mobile communication unit and the neighbor communication unit are integrated in a common printed circuit board that is mounted within the housing.

A control method implemented by a communication device. The control method includes: acquiring a current location and current capacities of a drone; selecting a destination point that can be reached by the drone according to the location and capacities thereof, the destination point being located in the coverage area of a point of access to a mobile communication network; and providing the drone with instructions specifying the destination point towards which the drone is to travel and communication operations to be carried out in connection with the mobile communication network. Once the instructions are obtained, the drone moves towards the destination point and performs the communication operation as soon as it reaches the destination point or as soon as the connection quality reaches a satisfying level.

A control method implemented by a communication device. The control method includes: acquiring a current location and current capacities of a drone; selecting a destination point that can be reached by the drone according to the location and capacities thereof, the destination point being located in the coverage area of a point of access to a mobile communication network; and providing the drone with instructions specifying the destination point towards which the drone is to travel and communication operations to be carried out in connection with the mobile communication network. Once the instructions are obtained, the drone moves towards the destination point and performs the communication operation as soon as it reaches the destination point or as soon as the connection quality reaches a satisfying level.