Qualcomm Incorporated

Mukesh Kumar

Alexandros Manolakos

Guttorm Ringstad Opshaug

Srinivas Yerramalli

Siddhant

Xiaoxia Zhang

Rajat Prakash

Suresh Sanka

Pulkit Rajgadiya

Marwen Zorgui

Ie-Hong Lin

Sven Fischer

Jordan C Cookman

Vishnu Namboodiri Karakkad Kesavan Namboodiri

Priyangshu Ghosh

Junyi Li

Seyedkianoush Hosseini

Alberto Rico Alvarino

Piyush Gupta

Yih-Hao Lin

Anand Rajurkar

Lorenzo Ferrari

Mohammad Tarek Fahim

Chinmaya Padhy

Yousong Mei

Ravi Kishore Paruchuru

Arun Agarwal

Kamalpreet Singh Padam

Fnu Siddhant

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a set of antenna parameters for a plurality of antenna ports of a transmission-reception point (TRP), obtains positioning measurements of a plurality of positioning reference signal (PRS) resources transmitted on the plurality of antenna ports, reconstructs an underlying physical channel between the TRP and the UE based on the positioning measurements of the plurality of PRS resources, and determines a downlink angle of arrival (DL-AoD) measurement from the TRP to the UE based on the reconstructed underlying physical channel.

Multi-port positioning reference signal (PRS) for downlink angle-of-departure (AOD) estimation

In an aspect, a network component (e.g., BS, LMF, etc.) determines a configuration of a first search window associated with a downlink positioning reference signal (DL-PRS) resource from a transmission reception point (TRP) to a user equipment (UE) and a second search window associated with the DL-PRS resource from the TRP to the UE. The network component transmits the configuration to the UE. The UE performs one or more positioning measurements of the DL-PRS resources based on the first and second search windows.

Multiple search windows associated with measurement of a downlink positioning reference signal

A signal measuring method includes: receiving, at a user equipment, first positioning assistance data having a first area of applicability and a first positioning assistance data profile; storing the first positioning assistance data at the user equipment; determining, at the user equipment, that second positioning assistance data correspond to the first positioning assistance data based on the first area of applicability including a second area of applicability, of the second positioning assistance data, and based on a second positioning assistance data profile of the second positioning assistance data corresponding to the first positioning assistance data profile; and measuring, at the user equipment, a positioning signal corresponding to the second area of applicability using the first positioning assistance data in response to determining that the second positioning assistance data correspond to the first positioning assistance data.

Regional positioning assistance data

In an embodiment, a wireless node (e.g., UE or BS) receives from a network component (e.g., BS or core network component) a request for a positioning estimate of a UE associated with a specified time. The wireless node performs positioning measurements at a plurality of times, and determines (e.g., via interpolation or extrapolation) the positioning estimate associated with the specified time based on the positioning measurements. The wireless node transmits, to the network component, a report comprising the determined positioning estimate.

User equipment positioning estimate for specified time

A user equipment (UE) receives scheduling information for Sounding Reference Signal (SRS) for positioning that includes multiple reserved occasions to transmit the SRS. The multiple reserved occasions may be used on all or on only a subset of configured SRS resources. The UE transmits the positioning SRS on a reserved occasion that is first available for transmission, e.g., without collision or other restrictions of transmission of the SRS. The UE does not transmit the positioning SRS on any earlier reserved occasions that is not available or any subsequent reserved occasions. The base station may attempt to decode the SRS on each reserved occasion until the positioning SRS is transmitted. The base station may reassign unused reserved occasions to other UEs or to other channels. The base station may report positioning measurements with associated time stamps for the reserved occasion on which the positioning SRS was received.

Supporting scheduling of sounding reference signals

Methods, systems, computer-readable media, and apparatuses for UE positioning are described. In some embodiments, a UE is configured to perform positioning measurements according to capabilities of the UE. Over time, the capabilities may change. Based on a change, the UE reports, to a location server, an indication that the capabilities have changed. This indication can include updated capabilities information or an error related to previously reported capabilities information and/or availability of the updated capabilities information. In turn, the location server may indicate, to the UE, updated assistance data and/or a request for updated location information, such that next position measurements performed by the UE may be based on the updated assistance data and/or the request.

Updating user equipment's positioning capabilities during positioning session

Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) performs a plurality of positioning measurements of a corresponding plurality of positioning reference signal (PRS) resources within a measurement window, wherein the measurement window spans at least one system frame number (SFN) rollover, and transmits, to a location server, at least one measurement report associated with the measurement window, the at least one measurement report including a plurality of timestamp information elements corresponding to the plurality of positioning measurements, wherein at least one timestamp information element of the plurality of timestamp information elements indicates the at least one SFN rollover.

Measurement reporting enhancements in batch mode reporting

Systems and techniques are provided for performing Quasi-Zenith Satellite System (QZSS) signal acquisition. For example, an example of a method for performing QZSS signal acquisition includes obtaining a modulated message signal using a frequency band and generating, based on an estimated set of signal acquisition parameters associated with an acquired signal, an energy grid of correlation codes. A series of extracted data bytes can be generated for each respective hypothesis of a plurality of hypotheses, based on a location of a peak energy within the energy grid of correlation codes. A correct hypothesis out of the plurality of hypotheses can be determined, wherein the correct hypothesis is associated with a generated series of extracted data bytes that includes a pre-determined header preamble pattern. The modulated message signal can be decoded using an initial code phase associated with the correct hypothesis.

Systems and techniques for quasi-zenith satellite system (QZSS) signal acquisition

Aspects presented herein may improve the efficiency, accuracy, and/or latency of a UE positioning procedure by enabling mobility analytics associated with a UE or a set of UEs to be exchanged between a location server and an NWDAF, either directly or via another network entity. In one aspect, a first network entity transmits a request for mobility data associated with a set of UEs, where the request for the mobility data is transmitted for a second network entity associated with mobility data analytics. The first network entity receives, based on the request, an indication of the mobility data associated with the set of UEs. The first network performs at least one location function for at least one UE in the set of UEs based on the indication of the mobility data.

Mobility analytics exchange between network entities

Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) may determine a plurality of measurement gap (MG) configurations, each MG configuration defining one or more MGs. The UE may send, to a serving base station, a request to use a first MG configuration from the plurality of MG configurations, and may receive a response to the first request. The UE then measures positioning signals using an MG configuration indicated by the response. Based on measurements of the first set of positioning signals, the UE may select a second MG configuration, send a second request to use the second MG configuration, and receive a response to the second request. The UE then measures a second set of positioning signals using an MG configuration indicated by the response to the second request.

Dynamic configuration of measurement gaps

A user equipment (UE) reports its own position using reference location information messages and relative location information messages. An example method performed by a first UE includes determining a first location of the first UE based on positioning measurements, transmitting a reference location information message indicating the first location, determining one or more subsequent locations of the first UE based on subsequent positioning measurements, and transmitting one or more relative location information messages, each of the one or more relative location information messages indicating a subsequent location for the UE based on relative information with respect to the first location.

Relative location reporting for UE based positioning

Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a network entity, a positioning reference signal (PRS) configuration indicating one or more PRS resources. The UE determines that one or more transmission properties of the one or more resources should be modified and transmits PRS modification information to the network entity based on the one or more transmission properties of one or more PRS resources to be modified. The network entity may be a location server or location management function. The PRS modification information may include a request to modify the PRS configuration and information indicating a start time, a stop time, a duration, or a combination thereof, associated with modifying the PRS configuration.

Selective cancellation of on-demand positioning reference signal (PRS) occasions

Aspect 19 is the apparatus of any of aspects 14-18, further includes that the value of the response time and a value of the first time slot are based on an actual slot of the transmission of the first SL-PRS.

Dynamic switch between SS-TWR and DS-TWR for sidelink positioning

Techniques are provided for combining positioning reference signal (PRS) measurements coherently or non-coherently. An example method for combining positioning reference signal resources includes receiving a plurality of positioning reference signals associated with a positioning reference signal resource set or a transmission/reception point, coherently combining resource elements for two or more of the plurality of positioning reference signals received within a period of time, and non-coherently combining resource elements for two or more of the plurality of positioning reference signals received outside of the period of time.

Opportunistic coherent and non-coherent combining of positioning reference signal resources

A mobile device supports positioning with positioning reference signals (PRS) on multiple beam by dividing the PRS processing into two separate modes, an acquisition mode and a tracking mode. In acquisition mode, the mobile device performs a fast scan of all of the beams from a base station transmitting PRS using less than the full set of resources for the PRS, i.e., less than the full bandwidth and/or less than the full number of repetitions of the PRS. The mobile device may select the best beams to use for positioning, e.g., based on signal strength metric. In tracking mode, the mobile device tracks the PRS from only the selected beams using the full set of resources for the PRS. The mobile device may return to acquisition mode after a predetermined number of positioning occasions or if the selected beams are no longer valid due to movement or change in conditions.

Growing community of inventors

Hyderabad Telangana, India

Mukesh Kumar