Abstract:
Various methods, apparatuses and/or articles of manufacture are provided which may be implemented using one or more fixed electronic devices to generate a reference data report corresponding to a particular environment. Various methods, apparatuses and/or articles of manufacture are provided which may be implemented using one or more mobile electronic devices to generate an environment report corresponding to a particular environment.
Abstract:
A location server, such as a Serving Mobile Location Center (SMLC) or E-SMLC and mobile terminal selectively implement the reliable transport mechanism used in, e.g., LPP or LPPe protocols, thereby decreasing unnecessary delays. The reliable transport mechanism may be selectively implemented by not requiring an acknowledgement for specific messages, such as an unsolicited assistance data message. When assistance data is solicited, however, the responsive assistance data message includes an acknowledgement request as per the reliable transport mechanism.
Abstract:
Techniques for supporting location services with a streamlined location service layer are described. In one design, a terminal may receive a location service request from an application that is internal or external to the terminal. The terminal may exchange at least one message with a location server to establish an extended location session of a particular duration via the streamlined location service layer. The terminal can thereafter obtain location service from the location server at any time within the particular duration of the extended location session, e.g., whenever a location request is received from the application. The terminal may obtain location service any number of times and at any time during the extended location session. The terminal or application may emulate a more complex location service based on location information received from all of the times in which location service is obtained by the terminal.
Abstract:
Methods and apparatuses are presented for obtaining authorized access from a terminal to a discovered location server. The methods may include switching from a first network that does not support authenticated access from the terminal to a home location server to a second network that does support authenticated access from the terminal to the home location server. Authenticated access to the home location server may be obtained using the second network. Authorization for the discovered location server may then be obtained from the home location server. The terminal may then switch from the second network back to the first network. The terminal may then access the discovered location server using the first network based on the obtained authorization from the home location server.
Abstract:
Techniques are provided for handling uplink based positioning during demodulated reference signal (DMRS) bundling. An example method for transmitting positioning reference signals and demodulated reference signal bundles includes determining a first transmit power for transmitting an uplink positioning reference signal, determining a second transmit power for transmitting a demodulated reference signal bundle, determining a common transmit power based at least in part on the first transmit power and the second transmit power, wherein the common transmit power is configured to maintain phase continuity in the demodulated reference signal bundle, and transmitting the uplink positioning reference signal and the demodulated reference signal bundle with the common transmit power.
Abstract:
A UE may include IoT NTN device, and the UE may acquire the GNSS location to perform the time/frequency pre-compensation. A NAS layer of the UE may initiate a connection request procedure based on the GNSS fix procedure at one or more lower layer of the UE. A network may transmit a paging request to the UE, and manage a paging response timer based on the GNSS fix procedure at the UE.
Abstract:
Satellite access to a PLMN with a Fifth Generation (5G) core network (5GCN) is supported by a serving satellite NodeB (gNB). The gNB determines or verifies the country in which a user equipment (UE) is located to ensure that the UE is located in the same country as the PLMN. The gNB may determine the country of the UE based on UE measurements from broadcast satellite signals and a positioning ID (PID) broadcast for each radio cell. The PID frequently changes to prevent spoofing. The gNB may use multiple UE measurements from a moving radio cell over a period of time to generate a more accurate location for the UE. The gNB may indicate to a 5GCN whether the country of the UE has been verified. The 5GCN will determine the location and country of the UE if the gNB indicates that the country is not fully verified.
Abstract:
Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) transmits a first request assistance data message to a location server, the first request assistance data message comprising a request for first positioning assistance, receives a provide assistance data message from the location server, the provide assistance data message indicating that the location server is not currently able to provide the first positioning assistance, and transmits a second request assistance data message to the location server after expiration of a reattempt time from reception of the provide assistance data message, the second request assistance data message indicating a request for second positioning assistance, wherein the first positioning assistance is not received by the UE prior to the reattempt time.
Abstract:
Certain aspects of the present disclosure provide techniques for a UE to select a public land mobile network (PLMN). In general, the present disclosure provides methods for PLMN scanning and selection of a PLMN with discontinuous coverage. In certain aspects, a UE may perform a PLMN scan according to a first schedule when a preferred PLMN of the UE is associated with discontinuous coverage (DC) and perform the PLMN scan according to a second schedule when the preferred PLMN of the UE is not associated with DC.
Abstract:
In some implementations, a first mobile device may communicate with a plurality of mobile devices to form a positioning group, where the communicating comprises exchanging positioning capability information with the plurality of mobile devices, and where the positioning group comprises: a leader device configured to determine an initial position estimate, a validator device configured to determine a validated position estimate, and one or more other devices different than the leader device and the validator device. The first mobile device may send an estimated position of the first mobile device to a monitoring device, where the estimated position of the first mobile device is based at least in part on the initial position estimate, the validated position estimate, or both.