Abstract: A wireless communication device having a receiving module, a transmitting module, and a processor which includes a determining module, and a processing module, wherein the wireless communication device is arranged to perform a method for power savings in a wireless communication system. Transmissions of a first set of reference symbols, RSs, and a second set of RSs are provided in the wireless communication system. The method includes obtaining information on the transmission of the second set of RSs, and determining which RS to use for idle mode tasks based on the obtained information on the transmission of the second set of RSs. The first set of RSs are provided periodically, and the second set of RSs are provided any of periodic, semi-persistent or aperiodic transmissions.

Abstract: A method, system and apparatus are disclosed related to aspects of wake-up signal (WUS) transmission. In one embodiment, a network node is configured to transmit a wake-up signal (WUS), the WUS indicating a presence of a paging physical downlink control channel (PDCCH) in at least one paging occasion; and the WUS being at least one of a 5 physical downlink control channel (PDCCH) signal, a reference signal (RS) a sequence-based signal, a synchronization signal, a secondary synchronization signal (SSS), a primary synchronization signal (PSS), a channel state information reference signal (CSI-RS) and a tracking reference signal (TRS). In one embodiment, a wireless device (WD) configured to monitor for a wake-up signal (WUS), the WUS indicating a presence of a aging physical 0 downlink control channel (PDCCH) in at least one paging occasion.

Abstract: An example method for transmitting a random access preamble comprises selecting (502) a random access preamble configuration from a plurality of predetermined random access preamble configurations. The method further includes determining (504) a time interval in which to transmit the random access preamble. The method further comprises transmitting (506) the random access preamble according to the selected random access preamble configuration. Each of the plurality of random access preamble configurations comprises a combination of (a) a single root sequence from a predetermined set of one or more root sequences, (b) a single cyclic shift of a predetermined plurality of cyclic shifts for the root sequence, and (c) a single starting position of two or more predetermined starting positions within time intervals allocated for random access preamble transmission.

Abstract: A method of beamforming calibration is disclosed for a multi-antenna transceiver configured to communicate with one or more other transceivers. The multi-antenna transceiver has a plurality of transceiver chains connectable to respective antenna elements of the multi-antenna transceiver. Each transceiver chain comprises a transmitter path and a receiver path. The method comprises (for each transceiver chain) feeding an analog signal from the transmitter path to the receiver path via connection circuitry between the transmitter path and the receiver path to provide a digital calibration signal, and determining a beamforming calibration factor for the transceiver chain based on the digital calibration signal. Corresponding apparatus, multi-antenna transceiver, wireless communication node, and computer program product are also disclosed.

Abstract: Embodiments include methods for discontinuous reception (DRX) performed by a wireless device. Such methods include receiving, from an access node while operating in idle mode, a first set of beams during operative instants of at least one DRX cycle according to a first DRX cycle pattern. Such methods include determining reception quality metrics for respective beams of the first set and determining a second DRX cycle pattern based on the reception quality metrics. Such methods include receiving, from the access node while operating in idle mode, a second set of beams during operative instants of a subsequent DRX cycle according to the second DRX cycle pattern. Other embodiments include wireless devices configured to perform such methods and computer-readable media storing program code that embody such methods.

Abstract: A method is disclosed of paging a user equipment (UE) by a network node. The network node is configured for beam-formed transmission of a plurality of beams, wherein each beam is associated with a corresponding synchronization signal block (SSB), and wherein a physical downlink control channel (PDCCH) paging monitoring occasion (PMO) is associated with a preceding SSB. The method comprises determining (while the UE is in a non-connected mode) a subset of the plurality of beams related to one or more beams previously associated with the UE, transmitting the corresponding SSB for each beam of the plurality of beams, and paging the UE only in PDCCH PMO:s associated with the corresponding SSB:s of the beams of the subset. Corresponding apparatus, network node and computer program product are also disclosed.

Abstract: Embodiments include methods, performed by a user equipment (UE), for uplink (UL) transmission in a wireless network. Such methods include receiving a configuration associated with an UL transmission to a network node in the wireless network. Such methods include, for each of a plurality of combinations of the UE's available antennas and transmitters, determining metrics based on the UE performing the UL transmission using the particular combination. The metrics include a quality metric associated with reception of the UL transmission by the network node, and a UE energy consumption metric. Such methods include selecting one of the plurality of combinations of the available antennas and transmitters based on the respective quality metrics and the respective UE power consumption metrics, and performing the UL transmission according to the configuration and using the selected combination of available antennas and transmitters. Other embodiments include UEs configured to perform such methods.

Abstract: There is provided a method (500) performed by a wireless device (WD) for communicating with a network node in a wireless communication network. The method comprises configuring (401) the WD with a Discontinuous Reception (DRX) configuration having an ON-duration configuration and a long/short DRX cycle configuration, the DRX configuration defining a timing and a length of an ON-duration for the WD based on a message from the network node. The method further comprises configuring (402) the WD with a Power Saving Signal (PSS) configuration based on a message from the network node, wherein the PSS configuration comprises a PSS offset and a PSS range, and where the PSS offset and the PSS range define a starting point and length of a PSS Monitoring Window (MW) within which at least one PSS Monitoring Occasion (MO) occurs. Further, the method comprises monitoring (403) a signal or channel at one or more PSS MOs within the PSS MW.

Abstract: A base station or other network node configures a network transmission in dependence on a directional scanning reception ability of a wireless communication device targeted by the transmission. An example transmission configuration is selecting or restricting which Transmission/Reception Point to use for the transmission or selecting or restricting the beamforming configuration to use for the transmission. The device complements operations in the wireless communication network by indicating its directional scanning reception ability in initial signaling, such as used for random access, or in Radio Resource Control signaling, or both.

Abstract: Methods and apparatuses are disclosed for minimum scheduling offset interpretation. In one embodiment, the network node is configured receive an indication of a first preferred value for a minimum scheduling offset for a first bandwidth part, BWP, having a first subcarrier spacing, SCS, and a second preferred value for a minimum scheduling offset for a second bandwidth part, BWP, having a second subcarrier spacing, SCS; determine a minimum scheduling offset parameter for at least one of the first BWP having the first SCS and the second BWP having the second SCS based at least in part on at least one of the first preferred value and the second preferred value; and configure the wireless device with the determined minimum scheduling offset parameter. In another embodiment, a wireless device is configured to indicate the first and second preferred values.

Abstract: According to certain embodiments, a method in a network node comprises determining (1306) whether an additional synchronization signal should be transmitted to one or more wireless devices. The method further comprises transmitting (1308) an indication whether the additional synchronization signal is available for use. For example, in response to determining that the additional synchronization signal should be transmitted, the indication signals a presence of the additional synchronization signal to the one or more wireless devices.

Abstract: According to certain embodiments, a wireless device is configured to operate in a regular-power mode and a low-power mode, and a method of detecting wireless device movement includes: performing a link characterization measurement in the low-power mode using a low-power radio; determining, based on the low-power radio link characterization measurement, that the wireless device is not stationary; and performing radio resource measurements in the regular-power mode. In particular embodiments, performing the link characterization measurement using the low-power radio includes measuring a stationary reference signal (e.g., secondary synchronization signal (SSS)). Measuring the stationary reference signal uses a time-domain correlation receiver on the stationary reference signal.

Abstract: A wireless device, such as a user equipment, UE, determines (410) a first sleep opportunity for the wireless device and evaluates (420) one or more energy-related parameters for each of a plurality of possible sleep modes for the wireless device. The plurality of possible sleep modes correspond to varying degrees of reduced energy consumption by the wireless device, relative to a non-sleep mode. The wireless device selects (430) a first one of the plurality of possible sleep modes for the wireless device, based on this evaluating, and activates (440) the selected sleep mode during the first sleep opportunity.

Abstract: Methods and apparatuses are disclosed radio resource management (RRM) measurement. In one embodiment, a network node is configured to obtain neighbor relation information associated with a wireless device (WD) and/or a location of the WD; and determine whether to configure the WD in a limited search mode based on the obtained neighbor relation information. In another embodiment, the WD is configured to receive a configuration for a limited search mode; and perform measurements associated with neighboring cells based on the received configuration.

Abstract: The present disclosure relates to methods and arrangements for configuring radio link measurement reporting in a wireless communication system supporting a plurality of radio link reporting mechanisms. Performed in an access node, the method comprises obtaining (S21) a plurality of radio link reporting configurations, each radio link reporting configuration specifying one or more of the supported radio link reporting mechanisms and wherein at least one of the plurality of radio link reporting configurations specifies a combination of a first and a second radio link reporting mechanism being mutually different. The method further comprises selecting (S22) one radio link reporting configuration from the plurality of obtained configurations; and transmitting (S23) information about the selected radio link reporting configuration to a wireless device.

Abstract: Embodiments of the present disclosure relate to methods and network nodes and user equipment for measurement reporting. In example embodiments, a method implemented in a user equipment is provided. According to the method, the user equipment detects a plurality of beams from one or more of the UE's neighboring nodes, forms one measurement result of a group based on beam grouping information, and then send measurement report to the UE's serving node, including the measurement result of the group is included in the measurement report. According to the present disclosure, more neighboring nodes can be reported by the UE in a measurement report.

Abstract: A method is disclosed for a control node of a wireless communication system. The wireless communication system comprises two or more transmission arrangements and a receiver arrangement. Each transmission arrangement is associated with a respective set of available beams for beam measurements. The method comprises determining, for at least one transmission arrangement of the two or more transmission arrangements, a respective collection of linear combinations of available beams. At least one of the linear combinations comprises available beams from at least two sets of available beams associated with different transmission arrangements of the two or more transmission arrangements. The method also comprises causing transmission, by the transmission arrangements, of at least one of the linear combinations of available beams for beam measurements by the receiver arrangement. Corresponding apparatus, control node and computer program product are also disclosed.

Abstract: Various embodiments of the present disclosure provide a method for random access. The method which may be performed by a terminal device comprises performing a first transmission of a message from the terminal device to a network node in a random access procedure, according to first configuration information. The first transmission of the message comprises a transmission of a first preamble and a transmission of a payload on a shared channel. The method further comprises performing a second transmission of the message from the terminal device to the network node in the random access procedure, according to second configuration information. The second transmission of the message comprises at least one of: a transmission of a second preamble and a retransmission of the payload on the shared channel.

Abstract: Methods and apparatuses are disclosed for wireless device (WD)-autonomous physical downlink shared channel (PDSCH) receiver (RX) antenna adaptation. In one embodiment, a method implemented in a WD includes one or more of: estimating an expected number of multiple-input multiple-output (MIMO) layers based at least in part on channel state information (CSI) and/or a sounding reference signal (SRS) configuration; determining a set of antennas of a plurality of antennas to use based at least in part on the estimated expected number of MIMO layers; and/or receiving a MIMO signal using the determined set of antennas. In one embodiment, a method implemented in a network node include receiving a channel state information (CSI) report from the WD; and/or scheduling and/or transmiffing a downlink (DL) channel to the WD using a number of multiple-input multiple-output (M11\40) layers, the number of MIMO layers used based at least in part on the received CSI report.

Abstract: A multi-user multiple-input multiple-output (MU-MIMO) scheduling method is disclosed for scheduling transmission from a plurality of transmission instances to a plurality of receivers. The method comprises acquiring, for each pair of a transmission instance and a receiver, a communication quality metric and forming a first group of receivers from the plurality of receivers. The first group of receivers is formed by selecting a first receiver as a first group member and associating a first transmission instance to the first receiver and—when a plurality of communication quality metrics of the first transmission instance and not yet selected receivers fulfill a first criterion for sufficient communication quality—selecting a second receiver from the not yet selected receivers as a second group member and associating a second transmission instance to the second receiver.