Abstract:
Systems, apparatus and methods for reducing a long list of access points (APs) to a short list of access points are presented. Advantageously, a mobile device only need to search for access points on the short list thereby more quickly discovering access points, saving battery power, determining a position fix based on the discovered access points, and reducing a time to fix. Embodiments enable a mobile device to determine which access points should be detectable at a new location of the mobile device. Various embodiments comprise: (1) a linked database; (2) a grouped database; (3) an associated database; and (4) database feedback.
Abstract:
A method of providing Observed Time Difference of Arrival (OTDOA) assistance information to a mobile station is disclosed. In some embodiments, the OTDOA assistance information may comprise Positioning Reference Signal (PRS) assistance information including antenna switching assistance information for at least one cell. In one embodiment, the method may be implemented on a location server for the cell.
Abstract:
The aspects described herein enable an apparatus (e.g., an autonomous user equipment (UE), such as an unmanned aerial vehicles (UAV), an autonomous vehicle (AV), and an autonomous consumer Internet of things (CIoT) device, for example) to receive a notification message indicating a transmission of a high-priority message for one or more autonomous UEs, receive the high-priority message, wherein the high-priority message indicates at least one command associated with the one or more autonomous UEs, and perform the at least one command based on the high-priority message. In some examples, the high-priority message may be a new system information block (SIB) for autonomous UEs.
Abstract:
Techniques are provided for transmitting Positioning Reference Signals (PRSs) in cells supporting two different Radio Access Technologies (RATs), where the two RATs (e.g. 4G LTE and 5G NR) employ dynamic spectrum sharing. To avoid interference between the PRSs and between the two RATs, the PRSs may be time aligned to the same set of PRS positioning occasions, and may be assigned orthogonal characteristics such as different muting patterns, orthogonal code sequences, different frequency shifts or different frequency hopping. UEs supporting both RATs may be enabled to measure PRSs for both RATs. UEs supporting only one RAT (e.g. 4G LTE) may be enabled to measure PRSs for just this RAT. A location server such as an LMF, E-SMLC or SLP may provide assistance data to UEs, and request measurements from UEs, for PRSs in one or both RATs.
Abstract:
Techniques are described to enable a user equipment (UE) to communicate with remote endpoints by accessing a space vehicle (SV) in a store and forward (S&F) mode when the SV does not have a feeder link to a ground based network. The SV can include on board radio access network and core network capability which can enable the UE to communicate with an on board proxy for the remote endpoints. The proxy stores mobile originated (MO) voice and data sent by the UE and returns mobile terminated (MT) voice and data sent by the remote endpoints. When the SV has a feeder link, the proxy forwards MO data to a second proxy in an S&F center for forwarding to the remote endpoints and can receive MT data from the second proxy for the UE. UEs can access SVs without restriction and are registered only while accessing an SV.
Abstract:
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) decodes a first system information block (SIB) transmitted by a first cell to determine whether the first cell transmits a second SIB, decodes the second SIB based on a determination that the first cell transmits the second SIB, and reports, to a crowdsourcing server, a first set of parameters related to the second SIB transmitted by the first cell.
Abstract:
A method of wireless communication by a user equipment (UE) includes receiving a logging measurement message comprising a logged measurement configuration from a network device. The method also includes initiating a minimization of drive test (MDT) session in response to receiving the logging measurement message. The method further includes generating an MDT log based on measurements collected at the UE, the MDT log including non-terrestrial network (NTN) cell information. The method also includes transmitting, to the network device, the MDT log after completing the MDT session. A method of wireless communication by a network device, includes transmitting, to a user equipment (UE), a logging measurement message comprising a logged measurement configuration. The method also includes receiving a minimization of drive test (MDT) log based on measurements collected at the UE and the logged measurement configuration. The MDT log includes non-terrestrial network (NTN) cell information.
Abstract:
A communication system including a UE, a base station, and a PLMN is disclosed. The UE may access a radio cell supported by a communication satellite. The UE may select a preferred PLMN for each of multiple potential geographic locations of the UE. The UE may transmit, to the base station via the radio cell and the communication satellite, an indication of the preferred PLMN for each of the multiple potential geographic locations of the UE. The base station may attempt to determine a current geographic location of the UE. The base station may determine a serving PLMN as the preferred PLMN for the current geographic location of the UE and may later determine a second PLMN if the current geographic location changes. The base station determination may not be visible to the UE which may reduce UE signaling and resource usage.
Abstract:
In some implementations, a user equipment (UE) may exchange a plurality of sidelink (SL) positioning protocol (SLPP) messages with other UEs in a plurality of UEs, where the plurality of SLPP messages are exchanged via direct wireless SL communications. At least one message of the plurality of SLPP messages may comprise a Request Capabilities message, a Provide Capabilities message, a Request Assistance Data message, a Provide Assistance Data message, a Request Location Information message, or a Provide Location Information message. The UE may perform the positioning based, at least in part, on the plurality of SLPP messages. The UE may further exchange SLPP messages with a location server (e.g. LMF) which may assist the UE to perform the positioning and may enable the location server to obtain location results for the plurality of UEs. SLPP procedures may be defined to manage the SL positioning.
Abstract:
Disclosed are techniques for communication. In an aspect, a location server transmits a first request to at least a first network node, the first request including at least a first set of parameters indicating one or more first time instances during which the first network node is expected to perform and report one or more first positioning measurements of periodic positioning reference signals transmitted by a second network node during a plurality of periodic time instances, the plurality of periodic time instances including the one or more first time instances, and receives a first measurement report from the first network node, the first measurement report including the one or more first positioning measurements of the periodic positioning reference signals transmitted by the second network node during the one or more first time instances.