Abstract: Base station and UE and methods therein for broadcast in a wireless communication network. The method in the base station comprises determining a set of transmission resources, out of a number of sets of transmission resources, based on a property associated with a synchronization signal of the base station, and further transmitting the synchronization signal and/or system information, such as a MIB, in the determined set of transmission resources.

Abstract: Systems and methods relating to 6-port and/or greater than 8-port Channel State Information Reference Signal (CSI-RS) configurations are disclosed. In some embodiments, a method of operation of a radio access node in a cellular communications network comprises configuring a plurality of CSI-RS ports for a wireless device, where the plurality of CSI-RS ports is six CSI-RS ports, ten CSI-RS ports, twelve CSI-RS ports, fourteen CSI-RS ports, or sixteen CSI-RS ports, depending on the embodiment. The method further comprises transmitting CSI-RS on at least a subset of the plurality of CSI-RS ports configured for the wireless device. In this manner, support for, e.g., an increased number of antenna ports and/or support for two-dimensional (2D) antenna arrays is provided.

Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first synchronisation signaling having one or more first pairs of allocation units carrying broadcast signaling, and transmitting second synchronisation signaling having one or more second pairs of allocation units carrying broadcast signaling, wherein broadcast signaling carried on the first and second pairs of allocation units are cross-wise associated. The disclosure also pertains to related devices and methods.

Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.

Abstract: According to certain embodiments, a method performed by a wireless device comprises determining a configuration for sounding reference signal (SRS) transmission. The configuration is determined at least in part based on information received from a network node. The method further comprises performing the SRS transmission according to the configuration.

Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.

Abstract: A method performed by a wireless device of configuring uplink sounding transmissions is provided. The method includes receiving, from a network node, receiving, from a network node, different sets of configuration parameters for sounding signal transmissions for the wireless device. Each of the different sets of configuration parameters includes a time-domain parameter and different frequency allocations. The method further includes receiving, from the network node, downlink control information, DCI, comprising information that indicates which of the configured frequency allocations that should be applied for the SRS transmission. Furthermore, the method includes generating a sounding reference signal based on the received DCI.

Abstract: Methods, base stations and wireless devices for dynamic indication of channel state information (CSI) resources are provided. According to one aspect, a method for a wireless device for determining a channel state information reference symbol, CSI-RS, resource set indicated by a base station is provided. The method includes determining a CSI-RS resource set based on an indication of a CSI report setting. The CSI report setting has a one-to-one correspondence to a CSI-RS resource set.

Abstract: A method for operating a wireless communication network, wherein a first member of the network transmits a scheduling message to a secondary member of the network and the secondary member receives the scheduling message. The secondary member schedules sounding signal transmissions and/or a corresponding schedule based on the scheduling message, wherein the scheduling message and/or the sounding signal schedule refers to a schedule for sounding signals based on a status of beam forming performed in the network and/or wherein the sounding signal schedule and/or the schedule message refers to a compact schedule of sounding signals.

Abstract: A method for a UE in a multiple transmission points communication system, mTRP, scheme, is provided. The method includes receiving downlink control information, DCI, indicating at least two transmission points scheme for a scheduled data transmission on physical resource blocks, PRBs. The PRBs includes at least a first subsets of PRBs, associated with a first transmission point, and a second subset of PRBs, associated with a second transmission point. The method further includes determining a first PT-RS frequency density for the first set of PRBs based on the number of PRBs in the first set of PRBs and a second PT-RS frequency density based on the number of PRBs in the second set of PRBs. A UE, methods for a base station and a base station are also provided.

Abstract: A method performed by a radio device 6 for Channel State Information (CSI) feedback in a communication system 1 comprising a Radio Access Network (RAN) node 3 comprises receiving, from the RAN node, information about a CSI Reference Signal (RS) resource, a first CSI type and a second CSI type for feedback. The method also comprises receiving, from the RAN node, a CSI feedback request for CSI measurement and feedback of the first CSI type or the second CSI type. The method also comprises measuring CSI of the indicated type based on signals received on the CSI-RS resource. The method also comprises sending, to the RAN node, a CSI report of the requested CSI type. A corresponding method in a RAN node is furthermore presented herein.

Abstract: A user equipment (UE) determines a receive (RX) spatial filter for receiving both a first measurement resource and a second measurement resource. The RX spatial filter is determined based on a first spatial quasi-co-located (QCL) reference associated with the first measurement resource and a second spatial QCL reference associated with the second, measurement resource. The UE measures the first and second measurement resources with the determined Rx filter configuration.

Abstract: System and method for flexible channel state information-reference signal transmission A method by a wireless device is provided for restricting channel state information (CSI) measurement. The method includes receiving, from a network node, information identifying a first subset of channel state information-reference signal (CSI-RS) resources to be used in performing CSI measurements. The first subset of CSI-RS resources are associated with a first portion of a frequency band that is less than all of the frequency band. CSI measurements are performed in the first subset of CSI-RS resources that are associated with the first portion of the frequency band.

Abstract: According to some embodiments, a method for use in a network node of transmitting channel state information reference signals (CSI-RS) comprises transmitting a number M of CSI-RS ports to one or more wireless devices. A fraction of the M ports are transmitted over a first physical resource block (PRB) and a remaining fraction of the M ports are transmitted over a second PRB. Some embodiments further comprise mapping the number M of CSI-RS ports to resource elements of a radio subframe. A fraction of the M ports are mapped to a first PRB of the subframe and a remaining fraction of the M ports are mapped to a second PRB of the subframe.

Abstract: A method, in a radio network node, comprises identifying, among a predetermined codebook of precoding matrix codewords, a subset of precoding matrix codewords that are not to be reported by the wireless device in channel-state-information, CSI, feedback, and transmitting, to the wireless device, a bitmap identifying the subset of precoding matrix codewords that are not to be reported by the wireless device; where each bit in the bitmap corresponds to only one combination of a first dimension index l?1 and a second dimension index l?2 out of the possible combinations of the first dimension index l?1 and the second dimension index l?2, and where the first dimension index l?1 and the second dimension index l?2 identify a two-dimensional beam, the two-dimensional beam being defined by a vector of complex numbers comprised within at least one column of a precoding matrix codeword in the codebook.

Abstract: Methods and apparatus for configuring, in a network node of a wireless communication network, a reference signal resource. An example method comprises obtaining a combination of one or more components to be used for a reference signal resource, the one or more components being contained in one or more physical resource blocks of a slot; and indicating, to the one or more wireless devices, the combination of the one or more components in the one or more physical resource blocks that are to be used for the reference signal resource.

Abstract: Methods, wireless devices and network nodes for avoiding collision between a downlink control channel and a aperiodic channel state information reference signal, aperiodic CSI-RS, are provided. According to some aspects, a method is provided that includes receiving an aperiodic channel state information reference signal, aperiodic CSI-RS, based on an assumption that the aperiodic CSI-RS is not present in physical layer resources corresponding to a downlink control channel set.

Abstract: A user equipment, base station and method for transmitting semi-persistent channel state information (SP-CSI) on a physical uplink shared channel (PUSCH) are provided. The user equipment includes processing circuitry configured to receive a control signaling message the control signaling message configuring the user equipment with at least one SP CSI report configuration on the PUSCH, and the message identifying a SP CSI reporting periodicity. The user equipment also receives physical layer control signaling identifying and activating the at least one SP CSI report configuration. Transmitter circuitry is configured to transmit a plurality of SP CSI reports, the reports being transmitted with the periodicity and according to the physical layer control signaling and the control signaling message.

Abstract: Systems and methods relating to accurate Channel State Information (CSI) measurements for a License Assisted Secondary Cell (LA SCell) are disclosed herein. An exemplary user equipment enabled includes a transceiver, at least one processor, and memory containing instructions executable by the at least one processor whereby the user equipment operates to detect whether a downlink control information (DCI) message indicating that a Channel State Information Reference Symbol (CSI-RS) transmission from an LA SCell of the user equipment is present in a subframe. When the user equipment detects that the DCI message indicates that a CSI-RS transmission from the LA SCell is present in the subframe, it processes a CSI-RS measurement. When the user equipment detects that the DCI message does not indicate that a CSI-RS transmission from the LA SCell is present in the subframe, it refrains from processing the CSI-RS measurement.

Abstract: Embodiments herein relate to a method performed by a radio network node for handling transmission of data from a wireless device in a wireless communication network. The radio network node determines a delay value for a transmission of data from the wireless device based on a transmission type of data from the wireless device or a capability of the wireless device. The capability is related to a processing time for processing received data from the radio network node, or for processing data for transmission to the radio network node. The radio network node further transmits an indication, to the wireless device, which indication indicates the determined delay value.