Abstract: A transmitting node (110) transmits a message (210) instructing a radio node (105) that data will be transmitted to the radio node (105) according to the same Downlink Control Information (DCI) each period (250). The message (210) includes a duration of the period (250). The transmitting node (110) further transmits the DCI to the radio node (105) for the periodic transmission (260). The radio node (105) receives the message (210) and the DCI from the transmitting node (110), and decodes each of a plurality of transmissions of the periodic transmission (260) according to the DCI.

Abstract: The disclosure relates to a method performed in an entity for transmitting in a communications system. The method comprises assessing a channel to be available for transmission by establishing an on-going transmission to have a received signal strength such as to allow simultaneous transmission in view of a first clear channel assessment threshold; establishing type of transmission of the on-going transmission; and determining, based on the established type of transmission, whether to transmit or to defer transmitting. A corresponding entity, computer programs and computer program products are also provided.

Abstract: In a method for soft buffer handling in a user equipment in a wireless communication system, performing the steps of receiving (S100) a transmission, identifying (S101) overlapping positions for non-zero soft values in a soft buffer and received transmission soft values, copying and storing (S102) identified overlapping non-zero soft values or received transmission soft values, and combining (S103) soft buffer with received transmission.

Abstract: The disclosure relates to signalling of transmissions with shortened TTI. The disclosure further relates to an RBS and a method performed at the RBS of scheduling resources for a wireless communication device. The disclosure still further relates to a wireless communication device and a method performed at the wireless communication device of being granted data transmission or data reception. In a first aspect of the disclosure, a method performed at an RBS is provided for scheduling resources for a wireless communication device including indicating a grant of a resource for the wireless communication device to transmit or receive data based on DCI and a position of the DCI within a data frame of a downlink control channel.

Abstract: A scheduling node transmits, to a radio node configured for sub-subframe operation, a semi-persistent scheduling (SPS) configuration message configuring the radio node for sub-subframe-based SPS. The SPS configuration message comprises an identifier of the radio node and indicates a pattern of sub-subframes in which a resource allocation for the radio node repeats. The radio node receives the SPS configuration message and configures the radio node for sub-subframe-based SPS according to the SPS configuration message.

Abstract: There is provided mechanisms for granting resources to a wireless device. A method is performed by a network node. The method comprises obtaining an indication for granting the resources to the wireless device. The method comprises transmitting, to the wireless device, a grant for the resources in a transmission time interval (sTTI) frequency band. The grant comprises an index, and the index identifies a position of the resources within the sTTI frequency band.

Abstract: According to certain embodiments, a method performed by a wireless device comprises receiving an indication corresponding to a communication service and identifying a modulation and coding scheme (MCS) table and/or channel quality indicator (CQI) table from a plurality of defined MCS and/or CQI tables based on the received indication. According to certain embodiments, a method performed by a network node comprises determining a communication service associated to a wireless device and sending the wireless device an indication corresponding to the communication service. The indication enables the wireless device to identify an MCS and/or CQI table from a plurality of defined MCS and/or CQI tables.

Abstract: Embodiments of a method of operation of a wireless device for providing Downlink Control Information (DCI) format size alignment between a first DCI format a second DCI format and corresponding embodiments of a wireless device are disclosed herein. In some embodiments, the method of operation of the wireless device comprises determining one or more Resource Block Group (RBG) parameters for interpreting a frequency-domain resource allocation for the first DCI format. The RBG parameter(s) are either a RBG scaling factor(s) or a RBG size(s). The RBG parameter(s) adjust a granularity of the frequency-domain resource allocation for the first DCI format such that a size of the first DCI format is aligned with a size of the second DCI format. The method further comprises receiving DCI having the first DCI format and interpreting the frequency-domain resource allocation of the DCI in accordance with the one or more RBG parameters.

Abstract: The disclosure relates to signalling of transmissions with shortened TTI. The disclosure further relates to an RBS and a method performed at the RBS of scheduling resources for a wireless communication device. The disclosure still further relates to a wireless communication device and a method performed at the wireless communication device of being granted data transmission or data reception. In a first aspect of the disclosure, a method performed at an RBS is provided of scheduling resources for a wireless communication device including indicating a grant of a resource for the wireless communication device to transmit or receive data based on DCI and a position of the DCI within a data frame of a downlink control channel.

Abstract: A scheduling node (110) transmits, to a radio node (105) configured for sub-subframe operation, a semi-persistent scheduling (SPS) configuration message (210) configuring the radio node (105) for sub-subframe-based SPS. The SPS configuration message (210) comprises an identifier of the radio node (105) and indicates a pattern of sub-subframes (82) in which a resource allocation for the radio node (105) repeats. The radio node (105) receives the SPS configuration message (210) and configures the radio node (105) for sub-subframe-based SPS according to the SPS configuration message (210).

Abstract: Systems and methods for determining and utilizing an uplink scheduling timing when using short Transmission Time Intervals (sTTIs) are disclosed. In some embodiments, a method of operation of a wireless device in a cellular communications network comprises receiving an uplink grant in sTTI n; determining, based on a configured uplink/downlink configuration, an uplink scheduling timing I; and transmitting, in a sTTI n+I, an uplink transmission in accordance with the uplink grant received in the sTTI n. In this manner, an uplink timing is determined and utilized when using sTTIs.

Abstract: A technique for transferring data in a radio communication is described. As to one method aspect of the technique, the data is received in at least two hybrid automatic repeat request (HARQ) processes (580, 582). For each of the at least two HARQ processes (580, 582), an error detection scheme is performed for the received data. For each of the at least two HARQ processes (580, 582), a feedback (596, 598) is sent based on a logical combination (589) of results (585, 587) of the error detection scheme for the at least two HARQ processes (580, 582).

Abstract: According to some embodiments, a method performed by a wireless device operating in reliable mode comprises obtaining an indication of a subset of all possible control format indicator (CFI) and physical downlink control channel (PDCCH) combinations for the 5 wireless device to search to locate a PDCCH and locating the PDCCH by searching one or more of the subset of possible CFI and PDCCH combinations. Obtaining the indication may comprise receiving radio resource control (RRC) signaling that includes a CFI value. The RRC signaling may include an indication of whether a radio frame pattern is slot or subframe pattern, and the CFI value may be dependent on the radio frame pattern.

Abstract: A method performed by a communication device comprises identifying a long transmission time interval (TTI) transport block size from a set of long TTI transport block sizes used for transport block transmission within a long TTI. The method further comprises determining a short TTI transport block size, used for transport block transmission within a short TTI, by downscaling the long TTI transport block size based on a relation between a number of symbols in the short TTI and a number of symbols in the long TTI that is greater than the number of symbols in the short TTI.

Abstract: Systems, methods, and apparatus for communicating transport block repetitions are disclosed. An example method performed by a wireless device includes receiving an assignment of radio resources corresponding to two or more transmissions with first start and length pairs, each transmission comprising a transport block repetition, where at least one of the first start and length pairs violates a time-domain allocation restriction. The wireless device determines second start and length pairs for the two or more transmissions such that the time-domain allocation restriction is not violated. The wireless device transmits the two or more transmissions according to the determined second start and length pairs.

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: A method, apparatus and computer-readable mediums relating to the transmission of data packets in a wireless communication network. The method, performed by a node of a wireless communication network, for selecting a feedback scheme associated with transmission of data packets over one or more radio bearers to one or more wireless devices. The method comprises: upon receiving a data packet for transmission to a wireless device, starting a timer associated with the data packet, the timer being set to expire after a period of time which varies as a function of a latency requirement for the data packet; and, in dependence on a remaining time value for the timer, selecting one of a plurality of feedback schemes for transmission of the data packet.

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: Methods and apparatus for generating a scheduling grant for a wireless device of a communication system are provided. The communication system supports variable TTI lengths to be transmitted in one TTI. It is presented how to determine a TTI length for a scheduled TTI, where the TTI length is determined in number of symbols. It is further presented how to determine at least one reference signal parameter for the scheduled TTI, where the at least one reference symbol parameter is selected from a reference symbol position and a reference symbol cyclic shift. Finally, encoding the TTI length and the at least one reference symbol parameter into a TTI index is presented.

Abstract: Methods and apparatuses are disclosed for setting a processing time for a wireless device, WD, to respond to a radio resource control, RRC, connection resume message are disclosed. According to one aspect, a method in a base station includes determining when short processing time conditions exist in relation to the establishment or reconfiguration of the RRC connection for the WD; when short processing time conditions exist, sending to the WD a message indicating a short processing time; and when short processing time conditions do not exist, sending to the WD a message indicating a legacy processing time.