Abstract: Embodiments include exemplary methods for CLI mitigation. The methods comprise receiving (1310), from at least one sending network node, a TDD configuration of the at least one sending network node, the TDD configuration identifying at least one slot of the TDD configuration as either a fixed uplink slot or a fixed downlink slot, and at least one slot of the TDD configuration as a flexible slot for which at least one symbol has an undefined transmission direction and the remaining symbols of the slot, if any, have a defined transmission direction. The methods also comprise adapting (1320) operations in a cell based on the received TDD configuration for mitigating CLI with the at least one sending network node. Embodiments also include network nodes configured to perform the exemplary methods and/or procedures.

Abstract: Embodiments include methods, performed by a network node, for configuring a physical random-access channel (PRACH) of a cell in a time-division-duplexed (TDD) radio access network (RAN). The methods include determining an increase in a level of remote interference in the cell and, in response to determining the increase, selecting a first PRACH configuration from a first subset of available PRACH configurations. The first subset of available PRACH configurations can be more robust against remote interference than a second subset of the available PRACH configurations, and the first subset can be exclusive of the second subset. The methods also include transmitting, to one or more user equipment (UEs) first information indicating that the first PRACH configuration should be used for accessing the cell via the PRACH. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.

Abstract: According to some embodiments, a network node in a frequency division duplex (FDD) wireless communication network is operable to schedule a first downlink transmission with a first transmission processing time on a first frequency carrier. The scheduling comprises a first downlink assignment index (DAI). The first DAI comprises a first total DAI and a first accumulative DAI. The network node is operable to schedule a second downlink transmission with a second transmission processing time different than the first on a second frequency carrier. The scheduling comprises a second DAI. The second DAI comprises a second total DAI and a second accumulative DAI. The network node expects hybrid automatic repeat request (HARQ) feedback for the first downlink transmission and the second downlink transmission in a single uplink transmission. The network node is further to transmit the scheduling for the first and second downlink transmission to a wireless device.

Abstract: Systems and methods are disclosed herein for mapping Synchronization Signal Blocks (SSBs) to transmit beam directions taking into account remote interference. In this regard, embodiments of a method performed by a base station in a cellular communications network are disclosed. In some embodiments, a method performed by a base station in a cellular communications network comprises determining a beam direction to SSB index mapping, taking into consideration remote interference. The method further comprises using the beam direction to SSB index mapping. Because the SSBs have corresponding Physical Random Access Channel (PRACH) occasions, determining the beam direction to SSB index mapping taking into account remote interference improves PRACH preamble robustness.

Abstract: A computer implemented method in a transmitter for transmitting information carried by a signal over a channel to a receiver, wherein signal processing by the transmitter and by the receiver is degraded by one or more hardware impairments, the method comprising receiving feedback data indicating contextual information of the hardware impairments, selecting a signal format for use in generating the signal based on a mapping between the contextual information of the hardware impairments and a pre-determined set of signal formats, generating the signal based on the information and on the selected signal format, and transmitting the signal to the receiver.

Abstract: A computer implemented method for detecting data (y) comprised in a part (x) of a received signal (w) of a communication system (100), wherein the received signal (w) is associated with a population and where the part (x) of the received signal (w) is associated with a sub-population of the population, the method comprising: configuring (S1) a first function (ƒ1) to determine a context (c) of the received signal (w), wherein the context (c) is indicative of a state of the received signal (w), configuring (S2) a second function (ƒ2) to detect the data (y) based on the part (x) of the received signal, wherein the second function (ƒ2) is arranged to be parameterized by the context (c), and detecting (S3) the data (y) by the first (ƒ1) and second (ƒ2) functions.

Abstract: A method by a communication device for supporting a random access procedure in a wireless communication network. The communication device provides an indicator for indicating a presence of an initial access request by the communication device. The initial access request is part of the random access procedure. The indicator comprises a pre-defined synchronization sequence, wherein one of: the indicator comprises a first access burst extending over one time slot, wherein the first access burst comprises the pre-defined synchronization sequence, which is longer than 41 bits, and the indicator comprises a second access burst extending over two time slots, the second access burst comprising the pre-defined synchronization sequence, which is longer than 88 bits. The communication device transmits the indicator on a random access channel in uplink to a network node. The indicator indicates the presence to the network node of the initial access request.

Abstract: According to the present disclosure, behaviors of a Base Station (BS) and a User Equipment (UE) pertinent to Reference Signal (RS) transmissions are discussed. BS may configure RS corresponding to a set of antenna ports in two or more groups of Orthogonal Frequency Division Multiplexing (OFDM) symbols on a short Physical Downlink Sharing CHannel (sPDSCH), where subcarrier indices used for RS transmission are different between at least two groups of OFDM symbols. Then, BS may transmit the RS to UE. UE will receive RS and perform channel estimation based on the received RS.

Abstract: Embodiments include methods, performed by a network node, for configuring a physical random-access channel (PRACH) of a cell in a time-division-duplexed (TDD) radio access network (RAN). The methods include determining an increase in a level of remote interference in the cell and, in response to determining the increase, selecting a first PRACH configuration from a first subset of available PRACH configurations. The first subset of available PRACH configurations can be more robust against remote interference than a second subset of the available PRACH configurations, and the first subset can be exclusive of the second subset. The methods also include transmitting, to one or more user equipment (UEs) first information indicating that the first PRACH configuration should be used for accessing the cell via the PRACH. Embodiments also include complementary methods performed by UEs, as well as network nodes and UEs configured to perform such methods.

Abstract: A method in a wireless device (810) is disclosed. The wireless device receives (1404) an uplink grant from a network node (815), the uplink grant scheduling one or more uplink transmissions by the wireless device. The wireless device selects (1408) an ON/OFF time mask to use for transmitting the one or more uplink transmissions. The wireless device determines (1412), based on the received uplink grant, an allowed placement of a transient period of the selected ON/OFF time mask and a duration of the transient period to use for the one or more uplink transmissions.

Abstract: According to some embodiments, a method is performed by a wireless device for transmitting uplink data. The method comprises determining a predetermined configuration according to which to transmit uplink data and one or more repetitions of the uplink data. The method further comprises determining a cyclic shift for one or more reference signals transmitted with the uplink data and the one or more repetitions of the uplink data. The method further comprises transmitting the uplink data, the one or more repetitions, and the one or more references signals to a network node. The uplink data and the one or more repetitions are transmitted according to the predetermined configuration. The one or more references signals are transmitted according to the cyclic shift.

Abstract: Embodiments include methods for a user equipment (UE) to transmit control information in association with a plurality of data packet repetitions. Such methods include selecting, from a plurality of configured starting transmit positions, a starting transmit position for an initial repetition of the plurality. Such methods include selecting a sequence of cyclic shift (CS) values from a plurality of configured CS values. The plurality of configured CS values are less than the plurality of repetitions and/or the plurality of configured starting transmit positions. The sequence is selected based on the plurality of repetitions, and on an identifier associated with the data packet and/or the selected starting transmit position.

Abstract: A method in a wireless device is disclosed. The wireless device receives an uplink grant from a network node, the uplink grant scheduling one or more uplink transmissions by the wireless device. The wireless device selects an ON/OFF time mask to use for transmitting the one or more uplink transmissions. The wireless device determines, based on the received uplink grant, an allowed placement of a transient period of the selected ON/OFF time mask and a duration of the transient period to use for the one or more uplink transmissions.

Abstract: A method of operating a first communication node includes receiving a communication at the first communication node from a second communication node, wherein the communication includes information bits in a plurality of information bit positions, determining, by the first communication node, a subset of the information bit positions of the communication that are punctured wherein the determining is performed based on detected or decoded control information, and responsive to determining the subset, reducing, by the first communication node, magnitudes of information bits in the subset of the information bit positions that are punctured.

Abstract: A network node is provided. The network node includes circuitry configured to determine a Transmission Time Interval, TTI, configuration, the TTI configuration including a first TTI for operating a first signal between a first cell on a first carrier and a wireless device, and a second TTI for operating a second signal between the first cell on the first carrier and the wireless device, the TTI configuration including one of: the first TTI adjacent to the second TTI which do not overlap with each other in time; and the first TTI adjacent to the second TTI which at least partly overlap with each other in time, and configured to receive the first signal in the first TTI and the second signal in the second TTI, the first TTI and second TTI having been transmitted based on a maximum output power parameter that is based on the TTI configuration.

Abstract: Embodiments of the disclosed techniques include methods for remote interference management (RIM) implemented in a network device in charge of management in a wireless network. In one embodiment, a method includes receiving messages from a set of base stations, wherein each message from abase station of the set of base stations indicates that the base station is interfered. The method further includes grouping the set of base stations into a set of reference signal groups based on the messages, each reference signal group being mapped to a reference signal group identifier; and the method continues with sending a respectively mapped reference signal group identifier to each of the set of base stations. Embodiments of the invention also include methods to group base stations causing the interference.

Abstract: A user equipment (UE) transmits an SR to a network node using a first transmission duration a particular number of times. The UE then determines a longer transmission duration for transmitting a further SR based on determining that no response has been received from the network node in response to any of the particular number of times the SR was transmitted. The UE transmits a further SR to the network node using the longer transmission duration.

Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.

Abstract: According to certain embodiments, a method in a wireless device includes generating a signal comprising repeating segments for transmission in a subslot duration transmission time interval (TTI) to a network node. The signal comprising the repeating segments is transmitted to the network node in the subslot duration TTI.

Abstract: Techniques for improved scheduling request (SR) operation using one or more short transmission time intervals (sTTIs) (908) are presented to ensure both short latency and improved wireless coverage for user equipment (UE) (102). In particular, a method (1000) performed by a UE (102) for managing SR transmissions to a network node (106) is presented. The method can include determining (1002) a value indicative of network coverage conditions, and based on the value indicative of network coverage conditions, determining (1004) a transmission duration (908) for transmitting one or more SRs (118). In addition, the example method can include transmitting (1006) the one or more SRs (118) to the network node (106) using the determined transmission duration (908). Related devices, computer programs, processor/memory combinations, and systems are likewise described.