Abstract: Systems and methods for changing Listen Before Talk (LBT) for unlicensed networks are provided. In some embodiments, a method performed by a wireless device includes: receiving signaling from a base station that indicates when the wireless device uses LBT for transmissions; determining, based on the received signaling, whether or not to use LBT for transmissions; and transmitting based on the determination whether or not to use LBT for transmissions. Some embodiments provide a low complexity (in term of signaling overhead and specification impact) approach of adaptively using LBT mechanism by defining two simple modes for LBT operation (LBT and No LBT modes). Some embodiments reduce the probability of simultaneous transmissions that cause collisions, by using LBT mode, in environments and circumstances where network performance suffers from collision and/or interferences.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes communicating utilising data signaling based on a received control information message, the control information message scheduling multiple occurrences of data signaling, wherein communicating is based on extracting a code block group (CBG) setup for communicating based on the received control information message and/or a CBG configuration. The disclosure also pertains to related devices and methods.

Abstract: Systems and methods of the present disclosure are directed to a method performed by a wireless communication device for providing Hybrid Automatic Repeat Request (HARQ) feedback. The method includes dropping a first transmission that was to comprise a HARQ-Acknowledgement (HARQ-ACK) codebook that comprises HARQ-ACK feedback information for one or more first Physical Downlink Shared Channel (PDSCH) transmissions. The method includes transmitting a second transmission in which at least a portion of the dropped HARQ-ACK codebook is combined with other HARQ-ACK feedback information for one or more second PDSCH transmissions.

Abstract: A method for use in a User Equipment configured to operate according to the New Radio (5G) standard, said method comprising: monitoring a control region for mini-slots for a transmission; detecting a start of the transmission; monitoring a control region of said transmission for regular slots; detecting that the transmission has ended; and in response thereto monitoring the control region for mini-slots again.

Abstract: A host operable to provide an over-the-top (OTT) service is disclosed. The host is configured to provide and initiate transmission of user data to a network node for transmission to a user equipment (UE). To transmit the user data, the network node determines a PDSCH-to-HARQ timing for an upcoming downlink transmission of the user data to the UE. The network node also determines that HARQ feedback for the upcoming transmission should be delayed by the UE until further notification from the network node; transmits, to the UE, a first DCI associated with the upcoming transmission, the first DCI including a first PDSCH-to-HARQ timing-indicator value for indicating to the UE that the HARQ feedback for the upcoming transmission should be delayed until further notification from the network node; and transmit the user data from the host to the UE in the upcoming transmission to provide the OTT service.

Abstract: According to some embodiments, a method performed by a wireless device for transmitting a Type-3 hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprises receiving downlink control information (DCI) requesting a Type-3 HARQ-ACK codebook, wherein the DCI request is of a DCI format other than DCI format 1_1 for a physical downlink shared channel (PDSCH) transmission, and based on the DCI request, transmitting the Type-3 HARQ-ACK codebook to a network node.

Abstract: According to some embodiments, a method performed by a wireless device for transmitting a Type-3 hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook comprises receiving downlink control information (DCI) requesting a Type-3 HARQ-ACK codebook and an indication of a priority associated with the Type-3 HARQ-ACK codebook, and based on the DCI request and priority indication, transmitting the Type-3 HARQ-ACK codebook to a network node.

Abstract: A technique for using radio resources in fixed frame periods, FFPs, (500) on a channel for radio communication in a radio network comprising a first node (100) and a second node (200) is described. Each of the FFPs (500) comprises an idle time, IT, (502) for clear channel assessment, CCA, (506) of the channel and a maximum channel occupancy time, M-COT, (504) for occupying the channel depending on the CCA (506). As to a method aspect of the technique performed by the first node (100), a method (300) comprises the step of selectively monitoring (302) the radio resources in the FFPs (500) on the channel. The selective monitoring (302) comprises refraining from monitoring a first set (602) of the radio resources, which is allocated to a first message of the second node (200) and which is partially or completely in the IT (502). Alternatively or in addition, the method (300) comprises the step of selectively transmitting (304) on the radio resources in the FFPs (500) on the channel.

Abstract: An example method is performed by a wireless device in a wireless communication network. The method comprises receiving, from a base station, a control message allocating resources in a bandwidth part for a downlink transmission, the bandwidth part including unlicensed spectrum and being divided into a plurality of bandwidth pieces corresponding to bandwidth units over which listen-before-talk (LBT) is performed. The radio resources used for the downlink transmissions exclude (e.g., by puncturing or rate-matching around) one or more guard bands of a bandwidth piece that is sensed as free for transmission.

Abstract: A method by a wireless device configured for providing Hybrid Automatic Repeat Request (HARQ) feedback with a HARQ codebook includes receiving a scheduling command that schedules a Physical Downlink Shared Channel (PDSCH) corresponding to a HARQ process associated with a HARQ process identifier that is enabled. Based on the scheduling command, the wireless device disables HARQ feedback for the PDSCH corresponding to the HARQ process associated with a HARQ process identifier that is enabled.

Abstract: A method by a wireless device includes receiving, from a network node, configuration information that enables Hybrid Automatic Repeat Request Acknowledgment (HARQ ACK) and/or Negative Acknowledgment (HARQ NACK) feedback for a first set of HARQ processes and disables HARQ ACK and/or HARQ NACK for a second set of HARQ processes. The wireless device constructs a first HARQ codebook of a first type based on the first set of HARQ process numbers for first set of HARQ processes for which HARQ ACK and/or HARQ NACK feedback is enabled and sends, to the network node, the HARQ ACK and/or HARQ NACK feedback based on the first HARQ codebook.

Abstract: A method of operating a wireless communication device comprises identifying a first start position for performing uplink (UL) transmission in unlicensed spectrum during a first transmission time interval, performing UL transmission in the first transmission time interval (TTI) according to the first start position, identifying a second start position for performing UL transmission in unlicensed spectrum during a second TTI, wherein the first and second start positions correspond to different symbol offsets within the respective first and second TTIs, and performing UL transmission in the second TTI according to the second start position.

Abstract: A network node is arranged to provide communication at least in an unlicensed band where clear channel assessment, CCA, is required before transmissions. The unlicensed band comprises a plurality of carriers, or sets of carriers, defining channels.

Abstract: Embodiments of systems and methods for operating wireless communication devices (e.g., User Equipments (UEs)) as initiating and responding devices in a Frame-Based Equipment (FBE) New Radio (NR) Unlicensed (NR-U) network are disclosed. The proposed methods allow operating the NR-U network as an FBE system in a flexible manner that supports a wide range of deployments not limited to the UE operating as a responding device. In some embodiments, methods to operate UEs as initiating and responding devices in a FBE-based NR-U network are disclosed.

Abstract: A method and communication device for reporting HARQ-ACK code books of fixed sizes in a communication network is provided. The method includes responsive to operating in a first mode, reporting the HARQ-ACK codebook for each scheduled transmission to a network node. The method further includes responsive to operating in a second mode, reporting the HARQ-ACK codebook to the network node if at least one of the HARQ-ACK information in the codebook is ACK, wherein no NACK is transmitted in the codebook when operating in the second mode. The method further includes responsive to operating in a third mode, reporting the HARQ-ACK codebook to the network node if at least one of the HARQ-ACK information in the codebook is NACK, wherein no ACK is transmitted in the codebook when operating in the second mode.

Abstract: Systems and methods are disclosed herein that relate to multiple candidate starting points for a transmit burst in unlicensed spectrum. In some embodiments, a method of operation of a radio access node for performing a transmit burst in an unlicensed spectrum comprises transmitting a transmit burst in an unlicensed spectrum, wherein the transmit burst spans multiple subframes/slots and the transmitting of the transmit burst starts at one of a plurality of candidate starting points defined in at least a first subframe/slot of the transmit burst that occurs after successful completion of a Listen-Before-Talk (LBT) procedure for the transmit burst. In this manner, a radio access node (e.g., an enhanced or evolved Node B (eNB) in Long Term Evolution (LTE)) has flexibility to transmit a downlink transmit burst starting at different starting positions based on LBT outcome.

Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes communicating utilising data signaling based on a received control information message, the control information message scheduling multiple occurrences of data signaling, wherein communicating is based on extracting a code block group (CBG) setup for communicating based on the received control information message and/or a CBG configuration. The disclosure also pertains to related devices and methods.

Abstract: Methods, systems and apparatuses are disclosed for configuring a network node that communicates with a wireless device (WD) to use at least one of a single physical uplink shared channel or physical downlink shared channel (PXSCH) for a single transport block (TB) transmission that exceeds a single slot. The network node and WD may be further configured to transmit a single TB over multiple PXSCHs with one PXSCH for each slot. Initial transmission of one or more code blocks (CBs) or code block groups (CBG) of a TB may be indicated by the network node of WD with a start length indicator (SLIV). CBs transmitted in one or more PXSCHs may be grouped into one or more CBG groups by the network node or WD and repetition, multi-PUSCH scheduling and single TB transmission over multiple PUSCHs may also be used.

Abstract: A method, network node and wireless device (WD) for adapting periodic configurations based on spatial relations are disclosed. According to one aspect, a method includes configuring multiple transmission resources or multiple sets of transmission occasions for a radio resource control configured periodic uplink transmission. The method further includes associating each configured uplink transmission received from the WD by the network node with a downlink reference signal, the downlink reference signal provided as a direct or indirect spatial relation reference for the uplink transmission.

Abstract: A method, system and apparatus are disclosed. In one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: determine adapted configured grant, CG, control information based at least on CG control information, and signal the adapted CG control information for configuring transmission on at least one CG resource.