Disclosed are techniques for positioning. A receiver measures a time of arrival (ToA) of a positioning reference signal (PRS) transmission of a first PRS sequence transmitted by a first transmitter, measures a ToA of a PRS transmission of a second PRS sequence transmitted by a second transmitter, and determines an observed time difference of arrival (OTDOA) as a difference between the ToA of the PRS transmission of the first PRS sequence and the ToA of the PRS transmission of the second PRS sequence, wherein the OTDOA is less than half a maximum differential delay expected between the PRS transmission of the first PRS sequence and the PRS transmission of the second PRS sequence, and wherein a repetition duration of the first PRS sequence and the second PRS sequence is greater than 10 milliseconds (ms) and at least twice the maximum differential delay.

A method for transmitting a power headroom, a terminal device, and a network device are provided. The method includes: sending a power headroom PH value of a serving cell to a network device, where the PH value is a first PH value of a first sounding reference signal SRS and/or a second PH value of a second SRS; and the first PH value is obtained based on first configuration information of the first SRS, the first SRS is an SRS used for positioning, and the second SRS is an SRS used for measurement.

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) may belong to a group of UEs that includes at least a second UE and a third UE. The first UE may perform a channel access procedure and, when the channel access procedure is successful, may transmit a first positioning reference signal (PRS) over a sidelink communication link to the second and third UEs. The first UE may transmit the first PRS during a first time interval of a transmission window. Based on receiving the first PRS, the second UE may perform a channel access procedure and may transmit a second PRS to the first UE during a second time interval of the transmission window. The second PRS may be multiplexed (e.g., using frequency division multiplexing (FDM) or code division multiplexing (CDM)) with at least a third PRS transmitted by the third UE.

A method (700, 800), system (3210) and apparatus (900, 1000) are disclosed. According to one aspect, a method (700) for determining positioning is performed by a wireless device (1000). The method (700) comprising: receiving (720) a reference signal and performing a positioning measurement based on the received reference signal; receiving (730) positioning information based on the received reference signal, wherein the received positioning information comprises a positioning measurement reported by a neighbouring wireless device performed on the reference signal; and determining (740) further positioning information based on the positioning measurement and the received positioning information.

A method of measuring positioning signals at a user equipment (UE) includes: obtaining, at the UE, one or more transmission characteristics corresponding to each of a plurality of positioning signals; obtaining, at the UE, topographic information regarding physical features of a region associated with the UE and the plurality of positioning signals; determining, at the UE, one or more selected positioning signals, of the plurality of positioning signals, to measure based on the one or more transmission characteristics and the topographic information; and measuring, at the UE, the one or more selected positioning signals to produce one or more measurements.

In an aspect, a UE receives a set of tracking reference signal (TRS) configurations associated with a respective set of cells, and performs a set of spatial measurements associated with a set of TRSs on resources configured by the respective set of TRS configurations. In a further aspect, a cell (e.g., a serving cell of the UE or a non-serving cell of the UE) determines a TRS configuration, and transmits, to the UE in association with a spatial measurement procedure, a TRS on at least one resource configured by the TRS configuration.

According to certain embodiments, a wireless device includes an interface and processing circuitry operably coupled to the interface. The interface is configured to receive assistance information from a first node. The assistance information includes data associated with a first reference TP. The first reference TP may be located in a cell having two or more TPs. The processing circuitry is configured to calculate a first reference signal time difference (RSTD) measurement using the data associated with a first reference TP.

Positioning of a target user equipment (UE) using a mobile anchor node is supported by providing motion information for the mobile anchor node and/or measurement restrictions. The target UE receives motion information for the mobile anchor node, which may be an ordered list of points or, e.g., a motion path. The target UE may generate positioning measurements using the motion information for the mobile anchor node to determine the position of the mobile anchor node when it transmits positioning reference signals (PRS). The target UE may receive an indication of position measurement restriction if the mobile anchor node is moving. The target UE may receive PRS over a plurality of PRS occasions. The target UE may restrict measurement to only one PRS occasion, may generate and separately report measurements for each PRS occasions or may combine a plurality of measurements using filter coefficients provided by a location server.

Methods and systems for wireless communication are provided. In one example, a mobile device is configured to: obtain beam support information of a plurality of cells; perform measurements of one or more signals at the mobile device based on the beam support information of the plurality of cells to support a location determination operation for the mobile device; and transmit results of the measurements of the one or more signals to at least one of a location server or to a base station to support the location determination operation. The beam support information may include: a number of beams supported at each cell of the plurality of cells, information to identify each beam of the number of beams supported at the each cell, beam width information of the each beam, and/or Positioning reference Signals (PRS) codebook information which encapsulates the beams which are enabled along various elevation and azimuth angles.

A positioning method for a user equipment (UE) and an associated electronic device, the method including after a UE initiates a positioning request, receiving, by the UE, first supplementary information sent by a Location Management Function (LMF), where the first supplementary information comprises Synchronization Signal Block beam polling information of a designated cell reported to the LMF by a Next Generation Radio Access Network, measuring, by the UE, the designated cell to acquire first measurement information, and determining, by the UE, a position of the UE according to the first measurement information and the first supplementary information.