Abstract: According to some embodiments, a method in a wireless device comprises: receiving a control channel (e.g., physical downlink control channel (PDCCH)) that includes control information that indicates a set of time and frequency resources allocated for the wireless device to receive a data transmission; determining that the set of time and frequency resources allocated for data transmission overlaps with a control resource region (e.g., control resource set (CORESET)); and receiving the data transmission in the set of time and frequency resources allocated for data transmission. The control information may include a bitmap that indicates at one or more groups of time and frequency resources excluded/included for the data transmission region.

Abstract: A method in a communication device for managing uplink transmissions from the communication device to a network node. The method includes obtaining a timing advance value, the timing advance value indicating a time period in which the communication device shall advance a first uplink subframe transmission to the network node, obtaining information about a location of a gap within the first uplink subframe, the gap having a predefined duration, the location of the gap occurring after the time period indicated in the timing advance value, and performing the first uplink subframe transmission after the predefined duration.

Abstract: According to certain embodiments, a method performed by a wireless device comprises determining a subset of a set of control channel elements (CCEs) to monitor within one or more frequency domain monitoring occasions. The subset of CCEs excludes any CCEs of the set of CCEs that partially or fully overlap one or more guard physical resource blocks (PRBs). The method comprises monitoring the determined subset of CCEs for one or more control channel candidates within the frequency domain monitoring occasion(s).

Abstract: A wireless device receives downlink control information (DCI) from a network node, determines a physical downlink shared channel (PDSCH) group based on information in the received DCI, and transmits a hybrid automatic repeat request acknowledgement (HARQ-ACK) report to the network node based on the determined PDSCH group.

Abstract: Methods and apparatuses are disclosed for energy detection in unlicensed spectrum. In one embodiment, a method implemented in a radio node includes determining a maximum channel occupancy time (MCOT) value; and listen-before-talk (LBT) parameter settings, the MCOT value and/or the LBT parameter settings for one or more LBT parameters depending on an energy detection (ED) threshold value used to access a channel in an unlicensed spectrum; and performing a LBT procedure to gain access to the channel and a transmission on the channel according to the LBT parameter settings and the MCOT value. In one embodiment, a method in a network node includes configuring a wireless device with a MCOT value and LBT parameter settings, the MCOT value and/or LBT parameter settings depending on an ED threshold value used at the wireless device to access the channel.

Abstract: Abstract: According to certain embodiments, a method performed by a wireless device comprises monitoring a first search space set for a control channel candidate, receiving an indication to switch the search space set from a network node, and switching the search space set based on receiving the indication to switch the search space set. Switching the search space set comprises stopping the monitoring of the first search space set and starting monitoring a second search space set for the control channel candidate.

Abstract: Embodiments herein relate to a method performed by a first communication node operating in a wireless communications network. The first communication node adjusts a value of a Contention Window, CW, from a first value to a second value, the second value being a higher value than the first value, wherein adjusting the value is based on: one or more feedback timers having expired at a time of performing a sensing procedure in the absence of: a) a received uplink, UL, grant from a second communication node, or b) a downlink feedback from the second communication node for an Autonomous Uplink, AUL, transmission from the first communication node. Following adjusting the value, the first communication node initiates a sensing procedure performed prior to a transmission of an UL burst to the second communication node, wherein the sensing procedure uses the adjusted value of the CW.

Abstract: According to some embodiments, a method for use in a user equipment (UE) of managing a listen-before-talk (LBT) contention window size comprises transmitting a first burst of uplink subframes after a first LBT procedure performed using an LBT contention window size, and determining a reference subframe based on the first burst. The reference subframe is associated with a reference hybrid automatic repeat request (HARQ) process identifier. The method further comprises receiving scheduling for a second burst of uplink subframes. The scheduling comprises an associated HARQ process identifier and an associated new data indicator (NDI) for each subframe. When the UE determines the HARQ process identifier associated with at least one of the subframes of the second burst matches the reference HARQ process identifier, then if the associated NDI indicates new data, the method resets the LBT contention window size, else the method increments the LBT contention window size.

Abstract: Systems and methods for reducing cross-link interference in a wireless system are disclosed. In some embodiments, a method of operation of a wireless device in a wireless system comprises receiving, from a serving Access Point (AP), wireless device specific Sounding Reference Signal (SRS) or Demodulation Reference Signal (DMRS) configuration information for one or more potential aggressor wireless devices. The method further comprises performing one or more measurements on at least one of the one or more potential aggressor wireless devices using the wireless device specific SRS or DMRS configuration information for the at least one of the one or more potential aggressor wireless devices and reporting at least one of the one or more measurements to the serving AP. In this manner, cross-link interference measurement and reporting is enabled.

Abstract: According to some embodiments, a method for use in a user equipment (UE) of transmitting uplink data in unlicensed spectrum comprises receiving, from a network node, an uplink grant comprising an indication of one or more subframes to use for transmitting uplink data. Each subframe comprises a plurality of symbols. The method further comprises obtaining an indication of a listen-before-talk (LBT) type. The LBT type indicates a type of LBT procedure that the UE should perform before transmitting uplink data. The method further comprises determining, using the obtained LBT type, at least one of a starting symbol and a stopping symbol for transmitting uplink data, and transmitting uplink data according to at least one of the determined starting symbol and the determined stopping symbol.

Abstract: A method, network node and wireless device for fractional reuse of resources with flexible energy detection in unlicensed spectrum are disclosed. According to one aspect, a method in a network node includes associating each of a plurality of sets of resources within a cell with a different energy detection (ED) threshold, the resources in each set of the plurality of sets of resources being at least one of time resources and frequency resources. The method also includes assigning each set of resources of the plurality of sets of resources to a different set of a plurality of sets of wireless devices (WDs).

Abstract: A method in a wireless device (110) comprises obtaining (1004) information related to a signal transmission configuration for autonomous uplink transmission by the wireless device, the information comprising: a set of pre-allocated resources for use by the wireless device in performing autonomous uplink transmission on at least one secondary cell established between the wireless device and a network node (115); and a periodicity associated with the set of pre-allocated resources. The method comprises performing (1008) autonomous uplink transmission according to the obtained information related to the signal transmission configuration.

Abstract: A method, network node and wireless device for flexible configuration of channel occupancy measurements in New Radio (NR) are disclosed. According to one aspect, a wireless device configured to communicate with a network node is provided. The wireless device includes processing circuitry configured to: determine a time-domain configuration for a channel occupancy measurement based on at least one configuration parameter where the time-domain configuration is independent of subcarrier spacing of at least one carrier on which the channel occupancy measurement is performed; and optionally perform the channel occupancy measurement based at least on the determined time-domain configuration.

Abstract: A wireless device (110) receives a frequency resource configuration (200) from an access node (120), the access node generates downlink control information DCI (201) and transmits a control message (202) including at least one slot format indicator, SFI, field and a frequency resource indicator field. Based on the frequency resource indicator, the wireless device determines whether a particular frequency resource is available for operation (203) and whether the wireless device can receive or transmit data on said frequency resource (204, 205).

Abstract: A method performed in a system comprising a joint traffic direction scheduler configured to coordinate time-division-duplexing (TDD) transmissions for multiple cells comprises obtaining TDD operation information from each of the cells, determining, based on the obtained TDD operation information, a transmission direction to be used by each of the cells during one or more transmission time intervals (TTIs), and indicating to the cells the determined transmission direction.

Abstract: A base station is configured to transmit user data to a wireless device upon a first carrier. The base station identifies, from a set of transmission resources that is nominally allocated for transmission of user data upon the first carrier, a subset of transmission resources that is also nominally allocated for transmission of a reference or control signal either by the base station upon a second carrier or by a neighboring base station upon the first carrier. The base station selectively transmits user data to the wireless device upon the first carrier exclusive of this identified subset of transmission resources. The device in some embodiments obtains information indicating that the base station is selectively transmitting user data upon the first carrier exclusive of the subset in this way. Based on this information, the device recovers user data received upon the first carrier exclusive of the subset of transmission resources.

Abstract: Systems and methods relating to transmit power control are disclosed. In some embodiments, a method of operation of a radio access node for providing transmit power control commands to a wireless device for uplink (UL) transmission on a cell that operates in an unlicensed frequency spectrum is provided. The method comprises indicating, for the cell that operates in the unlicensed frequency spectrum, a dynamic Transmit Power Control (TPC) command using a downlink (DL) control channel which indicates a DL-UL allocation of upcoming subframes in the cell that operates in the unlicensed frequency spectrum. In some embodiments, the DL control channel is a common DL control channel. In some other embodiments, the DL channel is a common Physical Downlink Control Channel (PDCCH).

Abstract: Embodiments herein relate to a method performed by a first communication node operating in a wireless communications network. The first communication node adjusts a value of a Contention Window, CW, from a first value to a second value, the second value being a higher value than the first value, wherein adjusting the value is based on: one or more feedback timers having expired at a time of performing a sensing procedure in the absence of: a) a received uplink, UL, grant from a second communication node, or b) a downlink feedback from the second communication node for an Autonomous Uplink, AUL, transmission from the first communication node. Following adjusting the value, the first communication node initiates a sensing procedure performed prior to a transmission of an UL burst to the second communication node, wherein the sensing procedure uses the adjusted value of the CW.

Abstract: Methods of operation of a wireless device are provided. In particular, Media Access Control (MAC) protocol aspects are disclosed relating to Licensed Assisted Access (LAA) cells and, more generally, to cells of a cellular communications network operating in an unlicensed frequency spectrum. According to one aspect, a method of operation of a wireless device comprises transmitting an Uplink (UL) transmission on a cell for a corresponding UL Hybrid Automatic Repeat Request (HARQ) process, the cell operating in an unlicensed frequency spectrum, and setting a locally maintained status for the UL HARQ process to Acknowledgement (ACK) based on an assumption that the UL transmission was successful.

Abstract: There is disclosed a method of operating a radio node in a wireless communication network, the radio node being adapted for accessing a carrier for transmission based on a Clear Channel Assessment procedure, the method including transmitting Short Control Signaling on the carrier without a CCA procedure and/or with limited CCA procedure based on the fulfillment of one or more SCS criteria. The disclosure also pertains to related devices and methods.