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: A random access procedure may be provided by a network node for use with a user equipment, UE, of a wireless communication system. A demodulation reference signal, DMRS, configuration may be selected from among a set of DMRS configurations based on obtained information. A DMRS transmission may be controlled during the random access procedure based on the selected DMRS configuration. The UE may receive an indication of the DMRS configuration from the network node, may select the DMRS configuration from among a set of DMRS configurations based on the received indication, and may control DMRS transmission during the random access procedure based on the selected DMRS configuration.

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: A method, system and apparatus for reducing a number of bits of a physical broadcast channel (PBCH) used to broadcast a configuration of a remaining minimum system information (RMSI) data set as compared with other arrangements are disclosed. According to one aspect, a method in a network node includes determining a remaining minimum system information (RMSI) configuration based on a table of assumptions used to determine a number of bits to represent the RMSI configuration and broadcasting the RMSI configuration using the determined number of bits via a physical broadcast channel (PBCH).

Abstract: Systems and methods are described herein for scheduling multiple short Transmission Time Internal (sTTI) transmissions. In some embodiments, a method of operation of a network node of a wireless communication network for scheduling multiple sTTI transmissions comprises transmitting a control information message to a wireless device for two or more sTTI transmissions, wherein the control information message comprises scheduling information indicating two or more scheduled sTTIs for the two or more sTTI transmissions, respectively, and/or an indication of a timing for the two or more scheduled sTTIs for the two or more sTTI transmissions and/or an indication of a Demodulation Reference Signal (DMRS) configuration for the two or more scheduled sTTIs for the two or more sTTI transmissions. By using multi-sTTI scheduling, control signaling overhead is reduced.

Abstract: A system and method of Random-Access Response, RAR, messaging when a base station employs narrow beamforming. Multiple RAR messages are successively transmitted from the base station to a User Equipment, UE, before any response to a RAR message is received from the UE. Thus, despite any calibration mismatch between Uplink, UL, and Downlink, DL, beams in the beamformed system, a RAR message is not only received by the UE, but is received over the most-suitable DL beam for that UE. Each RAR message may contain a message-specific scheduling-delay indicator in the UL grant carried in the RAR message to provide an adjustable time delay for the UE's uplink transmission scheduled by the UL grant. Multiple RAR transmissions can schedule a single UL transmission at a specific time instance or different UL transmissions at different time intervals. The UE may report to the base station the best DL RAR transmission detected by the UE.

Abstract: Certain embodiments disclose a method in a wireless device. The wireless device receives a location of a time and/or frequency resource of a first Physical Random Access Channel (PRACH) from a network node. The wireless device receives a location of a time and/or frequency resource of a second PRACH. Furthermore, the wireless device transmits a first random access attempt via the first PRACH and transmits a second random access attempt via the second PRACH. The first PRACH and the second PRACH each have an associated preamble, and wherein the second PRACH preamble has a different length than the first PRACH preamble.

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: A wireless communication device transmits beam sweeping information that indicates a beam sweeping property of the device, and a network node in an associated wireless communication network configures transmission or reception beamforming with respect to the device at one or more Transmission/Reception in the network, based on the beamforming property. Among the various advantages flowing from configuring network-side beamforming for the device in view of the beamforming property, the network need not configure its beamforming operations according to worst-case or minimum-capability assumptions for the device, and, instead tailors its transmission or reception beamforming in dependence on the beamforming property of the device.

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: Systems and methods are described herein for scheduling multiple short Transmission Time Internal (sTTI) transmissions. In some embodiments, a method of operation of a network node of a wireless communication network for scheduling multiple sTTI transmissions comprises transmitting a control information message to a wireless device for two or more sTTI transmissions, wherein the control information message comprises scheduling information indicating two or more scheduled sTTIs for the two or more sTTI transmissions, respectively, and/or an indication of a timing for the two or more scheduled sTTIs for the two or more sTTI transmissions and/or an indication of a Demodulation Reference Signal (DMRS) configuration for the two or more scheduled sTTIs for the two or more sTTI transmissions. By using multi-sTTI scheduling, control signaling overhead is reduced.

Abstract: A user equipment (910) is provided for use in a cellular network. The user equipment includes a transceiver (1010), a processor (1020), and a memory (1030). The user equipment (910) is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.

Abstract: According to some embodiments, a method for use in a wireless communication network includes a wireless device receiving, from a network, a configuration corresponding to a Physical Random Access Channel (PRACH). The wireless device receives, from the network via Radio Resource Control (RRC) signaling, a bitmap that provides an indication of time locations corresponding to synchronization signal (SS) blocks. The wireless device determines, based on the configuration and the bitmap, a time slot that does not overlap with the time locations to perform a PRACH transmission during the determined time slot.

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: The present invention describes a radio base station and a method for integrated access and backhaul by using backhaul capacity requests. The radio base station is configured to allocate a first part of its capacity to access traffic and a second part of its capacity to backhaul traffic. It is further configured to form a self-backhauled network with a plurality of other radio base stations and select a backhaul route through the self-backhauled network for uplink and downlink backhaul traffic.

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: According to certain embodiments, a method for use in a wireless device is disclosed. The method comprises determining whether to restrict transmission of a random access preamble during at least a portion of a synchronization signal (SS) burst set. The SS burst set comprises at least one SS block indicated as being transmitted. In certain embodiments, the method/wireless device/computer program code further comprises transmitting the random access preamble during a time that transmission of the random access preamble is not restricted.

Abstract: Methods, network nodes, and terminal devices are disclosed along with associated host computers and communication systems for providing over-the-top services. A method comprises receiving a time advance, TA, command from a network node; 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: There is disclosed a User Equipment for a MulteFire wireless communication network. The User Equipment comprises processing circuitry and a transmitter, the User Equipment being adapted for utilizing the processing circuitry and the transmitter for performing a Listen-Before-Talk (LBT) procedure for one or more transmission bandwidths; transmitting Physical Uplink Shared CHannel (PUSCH) signaling in a PUSCH subframe on one or more interlaces within the one or more transmission bandwidths; and transmitting Sounding Reference Signaling on the one or more interlaces in the PUSCH subframe.

Abstract: Systems and methods for determining and utilizing downlink Hybrid Automatic Repeat Request (HARQ) timing when using short Transmit Time Intervals (sTTIs) are disclosed. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises determining a downlink HARQ timing k for transmission of downlink HARQ feedback for a downlink transmission received in a downlink sTTI nDL based on a Time Division Duplexing (TDD) uplink/downlink configuration and transmitting, in an uplink sTTI nDL+k, downlink HARQ feedback for the downlink transmission received in the downlink sTTI nDL. In this manner, downlink HARQ timing is determined and utilized when using sTTIs.