Abstract: Methods and apparatus are provided for determining timing error groups. In one embodiment a method of operating an entity in a communications network is provided. The communications network includes a network node. The method comprising determining at least one potential margin from a predetermined plurality of potential margins. Each potential margin of the plurality of potential margins being a potential maximum margin of timing error difference between two measurements based on positioning related reference signals or transmissions of positioning related reference signals. The method further comprising transmitting an indication of the at least one potential margin to the network node. The method includes determining a margin from the at least one potential margin and performing an action. The method further comprising determining a timing error group, TEG, associated with the action based on the margin.

Abstract: A method, network node and wireless device are disclosed. According to one aspect, a method in a network node configure to communicate with a wireless device (WD) includes determining a first code division multiplexing (CDM) group corresponding to super orthogonal antenna ports for which only the first WD is co-scheduled. The method also includes transmitting an indication of a codepoint of an antenna port field, the codepoint indicating an allocation of demodulation reference signal (DMRS) ports to the determined first CDM group, the indication indicating at least 5 physical downlink shared channel (PDSCH) layers.

Abstract: Methods and apparatuses provide a mechanism to account for timing errors of a wireless device in positioning measurements. In one example, a wireless device performs reference-signal transmissions or measurements and sends information to a network node that is involved in positioning of the wireless device. The information indicates associations of the reference-signal transmissions or measurements with respective timing groups of the wireless device. Each timing group represents a related set of transmission or reception timing errors within the wireless device. Based on the information, the network node accounts for the different timing-group associations when performing positioning calculations that are based on the reference-signal transmissions or measurements performed by the wireless device.

Abstract: A method, network node and wireless device (WD) for demodulation reference signal (DMRS) co-scheduling assumptions are disclosed. According to one aspect, a method in a WD includes receiving an indication of DMRS ports for which a sub-length orthogonality property of a frequency domain orthogonal cover code (FD-OCC) can be used to separate DMRS ports. The method also includes separating DMRS ports based on a co-scheduling assumption that other co-scheduled WDs are scheduled with DMRS ports that are sub-length orthogonal to the indicated DMRS ports.

Abstract: A communication device in a communications network receives (1710) first configuration information from a network node in the communications network. The first configuration can include an indication of a downlink, DL, positioning reference signal, PRS, resource of a plurality of DL PRS resources. The communication device can further perform (1720) at least one DL angle of departure, AOD, measurement based on the first configuration information. The communication device can further receive (1730) second configuration information from the network node. The second configuration information can include an indication of a subset of the plurality of DL PRS resources. The communication device can further report (1750) one or more DL AOD measurements.

Abstract: A method, wireless device and network node are disclosed. According to one aspect, a method for a wireless device includes receiving a configuration of a reference signal resource set from the network node, the reference signal resource set being a set of single-symbol and single antenna port reference signal resources in at least one slot; and based on at least one parameter of the received configuration, determining whether the UE can assume a same antenna port for all reference signal resources of the reference signal resource set.

Abstract: Embodiments described herein relate to methods and apparatus in networks, and particularly methods, Location Management Functions, base stations and wireless devices for configuring and sending uplink sounding reference signals (UL SRS). An example method performed by a Location Management Function (LMF) comprises receiving radio resource information relating to radio resources that can be applied for UL SRS by a wireless device; and providing a notification relating to triggering aperiodic uplink SRS to a base station serving the wireless device.

Abstract: A method, wireless device and network node are disclosed. According to one aspect, a method for a wireless device includes receiving a configuration of a reference signal resource set from the network node, the reference signal resource set being a set of single-symbol and single antenna port reference signal resources in at least one slot; and based on at least one parameter of the received configuration, determining whether the UE can assume a same antenna port for all reference signal resources of the reference signal resource set.

Abstract: Methods and apparatuses provide a mechanism to account for timing errors of a wireless device (12) in positioning measurements. In one example, a wireless device (12) performs reference-signal transmissions or measurements and sends information to a network node (20) that is involved in positioning of the wireless device (12). The information indicates associations of the reference-signal transmissions or measurements with respective timing groups of the wireless device (12). Each timing group represents a related set of transmission or reception timing errors within the wireless device (12). Based on the information, the network node (20) accounts for the different timing-group associations when performing positioning calculations that are based on the reference-signal transmissions or measurements performed by the wireless device (12).

Abstract: A method, system and apparatus for tracking reference signal (TRS)-based Doppler estimation are disclosed. According to some aspects, a method in a network node includes configuring the WD with an autocorrelation configuration, the autocorrelation configuration including an indication of M different time delays. M being an integer. The method includes receiving from the WD an amplitude of an autocorrelation estimate for a channel between the WD and the network node for each of the M different time delays.

Abstract: A method in a network node and a network is provided to determine line of sight, LOS, base stations for a user equipment (UE) is provided. A request is provided to at least one of the UE and a plurality of base stations to measure and report LOS detection measurements, wherein the plurality of base stations includes base stations of a serving cell of the UE. The LOS detection measurements are received from the at least one of the UE and the plurality of base stations. LOS base stations for the UE are determined based on the LOS detection measurements. An indication of the LOS base stations is transmitted to the UE.

Abstract: Embodiments described herein relate to methods and apparatus in networks, and particularly methods, Location Management Functions, base stations and wireless devices for configuring and sending uplink sounding reference signals (UL SRS). An example method performed by a Location Management Function (LMF) comprises receiving radio resource information relating to radio resources that can be applied for UL SRS by a wireless device; and providing a notification relating to triggering aperiodic uplink SRS to a base station serving the wireless device.

Abstract: A communication device (12) transmits signaling (20) indicating that the communication device (12) is capable of demodulating a data channel (16) using a demodulation reference signal (18) scheduled without a scheduling restriction on a number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped, e.g., the scheduling restriction restricts the number of resource elements, resource blocks, or resource block groups to which the demodulation reference signal (18) is mapped to being a multiple of a length of a frequency-domain orthogonal cover code applied to the demodulation reference signal (18). Depending on whether the communication device (12) is so capable, the demodulation reference signal (18) is scheduled with or without applying the scheduling restriction.

Abstract: Systems and methods are disclosed that provide Time Domain Orthogonal Cover Codes (TD-OCC) over nonconsecutive Demodulation Reference Signal (DMRS) symbols. In one embodiment, a method performed by a radio node comprises estimating channel characteristics or receiving channel characteristics through signaling and, depending on the channel characteristics, performing DMRS Orthogonal Cover Code (OCC) decoding based on either: (a) sub-length orthogonal Frequency Domain OCC (FD-OCC) combined with sub-length orthogonal TD-OCC over one or more additional DMRS symbols or (b) FD-OCC. In this manner, more orthogonal DMRS ports can be supported.

Abstract: There is disclosed a method of operating a network node in a radio access network, the method including transmitting reference signaling based on a reference signaling configuration, the reference signaling configuration corresponding to a comb-n structure for a symbol group of a slot, wherein the reference signaling configuration corresponds to a staggered and/or re-ordered comb-n structure for one or more other symbol groups of the slot. The disclosure also pertains to related devices and methods.

Abstract: Systems and methods for configuring and performing compensation for UE clock drifts and/or UE timing adjustments for RTT estimations. A wireless device can receive, from a network node, configuration information associated with estimating and reporting transmission timing compensation. The wireless device can estimate a transmission timing compensation for a time interval and report it to the network node. The network node can estimate a round trip time and/or a position of the wireless device based at least in part on the estimated transmission timing compensation.

Abstract: A method performed by a user equipment, UE includes obtaining a Sounding Reference Signal, SRS, configuration from a network node and determining an SRS waveform and transmitting the SRS waveform. The SRS waveform is adapted for positioning based on the SRS configuration to have a full bandwidth within a bandwidth applicable for the SRS waveform.

Abstract: Systems and methods for generating and configuring reserved resources associated with positioning measurements and calculations are provided herein. A wireless device can be configured to receive downlink data and perform positioning reference signal (PRS) measurements in one or more reserved resources without a configured measurement gap. Configuration information can indicate that PRS measurement is prioritized in a reserved resource.

Abstract: Systems and methods for generating and configuring periodization of PRS measurements. An access node receives a configuration request to configure a positioning reference signal (PRS) measurement window and determines whether to configure the measurement window in accordance with a priority associated with the PRS measurement. The access node can acknowledge the success or failure of configuring the PRS measurement window.

Abstract: A method, system and apparatus are disclosed. In one or more embodiments, a method in a wireless device is provided. The wireless device is configured to communicate with a network node. The wireless device receives an extended signal transmitted by the network node. The extended signal includes a base signal and at least one additional signal. The wireless device estimates a time of arrival, TOA, based on the extended signal.