Abstract: The technology described in this case facilitates random access by a user terminal with a radio base station. A user terminal determines one of a first type of uplink scrambling sequences and generates a random access message using the determined one of the first type of uplink scrambling sequences. The random access message is transmitted to the base station. The user terminal receives from the base station a second, different type of uplink scrambling sequence and uses it for subsequent communication with the radio base station. For example, the first uplink scrambling sequences may he specifically associated with the radio base station's cell area or a random access radio channel associated with the radio base station, but they arc not specifically assigned to any user terminal, and the second uplink scrambling sequence may be selected from a second set of uplink scrambling sequences specifically assignable to individual user terminals.

Abstract: According to some embodiments, a method for use in a wireless transmitter of a wireless communication network comprises providing control information relating to a slot. The control information includes an indication of whether the slot is of a first type or a second type. A slot of the first type starts at a slot interval boundary, and a slot of the second type either starts between slot interval boundaries and has arbitrary length or starts at a slot interval boundary and has reduced length. The control information includes an implicit or explicit reference signal timing indication if the slot is of the second type. The method further comprises transmitting the control information to a wireless receiver.

Abstract: There is disclosed a user equipment, UE, for a Radio Access Network, the UE being adapted for sidelink communication on a sidelink, the UE further being adapted for transmitting acknowledgement signaling pertaining to sidelink data. The sidelink data includes one or more data elements and the acknowledgement signaling has a signaling format comprising one or more acknowledgement substructures. Each of the substructures carries acknowledgement information pertaining to one of the data elements. Further, each of the acknowledgment substructures is mapped to a different one of the data elements based on at least one acknowledgement position indication provided in control signaling received by the UE. The disclosure also pertains to related devices and methods.

Abstract: A method and apparatus are disclosed for LTE-NR spectrum sharing. In one embodiment, a method for a wireless device (WD) includes obtaining a configuration of at least one reference signal of a first radio access technology that overlaps in time with a Multimedia Broadcast Multicast Service Single Frequency Network, MBSFN, subframe of a second radio access technology. In another embodiment, a method for a network node includes configuring at least one reference signal of a first radio access technology to overlap in time with a MBSFN subframe of a second radio access technology.

Abstract: The disclosure relates to a method of operating a wireless device. The method comprises receiving (10), from a network node, control information indicating a timing of a scheduled transmission or reception. The method further comprises determining (20) at least one slot or symbol for the scheduled transmission or reception based on the control information indicating the timing, wherein the determining is dependent on whether the wireless device is configured with a semi-static time division duplex, TDD, uplink-downlink allocation or not. The method also comprises performing (30) the scheduled transmission or reception in the determined at least one slot or symbol.

Abstract: According to some embodiments, a wireless device is configured to receive resource allocation information from a network node. The wireless device comprises a radio interface and processing circuitry configured to receive radio resource allocation information for a wireless transmission. The radio resource allocation information comprises one or more time-domain resources for the wireless transmission and a mapping type for the wireless transmission. The mapping type refers to a reference signal placement within the wireless transmission (e.g., demodulation reference signal (DMRS) mapping Type A or Type B). The radio interface and processing circuitry are further configured to interpret the received radio resource allocation information to determine a mapping type for the wireless transmission.

Abstract: The present disclosure introduces methods and apparatus for configuring or preconfiguring random access procedures when there are multiple configurable numerologies for one carrier. In some embodiments, the random access numerology of the wireless device is configured using the system information block. In other embodiments, the random access numerology used by the wireless device is determined implicitly based on the detection of one or more synchronization signals.

Abstract: The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.

Abstract: According to certain embodiments, a method is disclosed for use in a wireless device being affected by pre-emption. The method comprises receiving information from a network node and performing one or more operations based on the received information. The information indicates a portion of a buffer that is affected by pre-emption. Examples of operations that can be performed based on the received information include flushing the portion of the buffer affected by pre-emption or separately handling the portion of the buffer affected by pre-emption.

Abstract: The disclosure pertains to a method of operating a user equipment in a Radio Access Network. The method includes transmitting signaling in a first transmission timing structure starting at a starting symbol, the starting symbol being determined based on a received transmission timing structure indication, the transmission timing structure indication indicating the first transmission timing structure. The disclosure also pertains to related methods and devices.

Abstract: There is disclosed a method of operating a communication device in a wireless communication network. The method includes communicating utilising data signaling based on a code block size and/or code block length, the code block size and/or code block length being based on at least a first indication associated to a received control information message. The disclosure also pertains to related devices and methods.

Abstract: Methods, network device and terminal device are disclosed time advance adjustment. A method comprises receiving a time advance, TA, command from a network device; determining a TA granularity or range; and determining a TA value based at least partly on the TA command and the TA granularity or range, wherein different numerologies are configured for at least two carriers and/or at least two bandwidth parts (BWPs) in one carrier, wherein the at least two carriers and/or the at least two BWPs serve the terminal device and/or the terminal device supports at least one numerology.

Abstract: The disclosure relates to a method (50), implemented at a radio network node, of determining a starting symbol for a scheduled uplink transmission by User Equipment, UE. The method comprises selecting (52) a starting symbol within an uplink slot for a scheduled uplink transmission by a UE; and identifying (54) the starting symbol to the UE.

Abstract: Embodiments herein disclose e.g. a method performed by a wireless device (10) for handling communication for the wireless device in a second wireless communication network. The second wireless communication network coexists with a first wireless communication network on a same bandwidth in frequency, wherein the first wireless communication network applies a first shift in frequency in uplink transmissions. The wireless device receives from a radio network node (12,13), an indication indicating application of a second shift in frequency to uplink transmissions in case the second wireless communication network uses Frequency Division Duplex (FDD). The wireless device further applies the second shift in frequency to uplink transmissions, wherein the second shift defines a shift in frequency to a subcarrier relative to a subcarrier grid of the second wireless communication network or a shift in frequency to the subcarrier grid of the second wireless communication network.

Abstract: A method, network node and wireless device for waveform selection are provided. A method includes selecting a waveform based on one of a modulation and coding scheme, MCS, a resource allocation, and transport block size, TBS, and transmitting using the selected waveform.

Abstract: A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message (3) transmission from the one or more wireless devices.

Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting feedback signaling utilizing a feedback resource range, the feedback resource range being determined based on a received feedback size indication and a received scheduling assignment indication. The feedback resource range being a part of a signaling resource range configured to the user equipment for transmission.

Abstract: Systems and methods are disclosed for transmission and reception of an uplink grant during a gap created in radio resources assigned by a previous multiple Transmit Time Interval (multi-TTI) uplink grant in a system operating according to a Time Division Duplexing (TDD) scheme. In one embodiment, a method of operation of a wireless device operating according to a TDD scheme in a cellular communications network includes: receiving a first uplink grant from a radio network node that assigns first radio resources for a first multiple transmit time interval uplink transmission, the first radio resources comprising a set of consecutive subframes; and interrupting an uplink transmission on the first radio resources during a gap in the first radio resources assigned for the first multiple transmit time interval uplink transmission, the gap comprising a time domain gap within the set of consecutive subframes.

Abstract: A user equipment is configured with at least two collections of uplink resources to be used for transmitting control information to a communication network. The UE receives an assignment of radio resources to be used for receiving a downlink transmission from a base station of the communication network. The UE receives an acknowledgement resource indication, ARI, indicating one of the configured collections of uplink resources to be used for transmitting control information associated with the DL transmission. Further, the UE transmits the control information to the base station on at least a subset of the indicated collection of UL resources. In example embodiments, the indicated collection of uplink resources comprises a plurality of selectable uplink resource sets. The control information is transmitted on one of the uplink resource sets which corresponds to an operational state of the communication network.

Abstract: A wireless device monitors search spaces by receiving an orthogonal frequency-division multiplexing, OFDM, symbol in a downlink slot. The OFDM symbol is included in a control-resource set, CORESET, of resource elements configured to carry control information. The CORESET is associated with at least one property. The wireless device identifies at least one first property of the at least one property of the CORESET. Then, the wireless device monitors at least one particular search space for a control message related to the wireless device based on the identified at least one first property of the CORESET.