Abstract: There is provided mechanisms for providing configuration for uplink transmission to a wireless device. A method is performed by a network node. The method comprises transmitting a message comprising configuration for uplink transmission with short TTI operation. The method comprises transmitting a fast grant comprising scheduling of an uplink short TTI for the wireless device.

Abstract: According to one aspect of the teachings herein, a base station (20) schedules the transmission of uplink reference signals by a wireless device (16) separately from scheduling uplink data transmissions by the device (16). The separate scheduling may be done at specific times, under specific conditions, and with respect to specific devices (16) or groups of devices (16). Separate scheduling allows, for example, the base station (20) to use smaller scheduling intervals that are possible when uplink reference signals are integrally included in any scheduled uplink data transmission. As a further advantage, the density or number of uplink reference signal transmissions by a given device (16) can be adapted, e.g., based on channel conditions, data transmission formats, etc.

Abstract: In one aspect, a wireless device receives a first data transmission from a base station during a predetermined subframe interval and within a duration that is less than a maximum data transmission duration that is possible within the predetermined subframe interval, and determines a transmission time for transmitting HARQ feedback to the base station such that the determined transmission time depends on which subset of symbols within the predetermined subframe interval was used for the first data transmission. The wireless device transmits HARQ feedback for the first data transmission at the determined transmission time. In another aspect, a base station transmits the first data transmission and determines a reception time for receiving HARQ feedback such that the determined transmission time depends on which subset of symbols within the predetermined subframe interval was used. The base station receives HARQ feedback for the first data transmission at the determined transmission time.

Abstract: A method (110) in a user equipment (105;505) for transmitting a demodulation reference signal in a communications network (100). The method comprises determining (111) multiplexing information for the demodulation reference signal, and transmitting (113) the demodulation reference signal using the multiplexing information in a same time allocation as a demodulation reference signal of another user equipment. The method further comprises transmitting (115) data symbols associated with the demodulation reference signal in a separate time allocation of physical resources, and on a same physical frequency resource, to a time allocation of data symbols of the said another user equipment.

Abstract: A controller arrangement comprising a transceiver capable of communication via a wireless communication network, a controller arranged to control a physical entity at which the controller arrangement is arranged, and an interface between the transceiver and the controller is disclosed. The transceiver is arranged to provide information via the interface about present or imminent interrupts in the communication via the wireless network. The controller is arranged to operate in at least a first state when the information indicates that no interrupts are present or imminent, wherein the first state includes closed loop control from a remote entity via the wireless communication network, and a second state when the information indicates that interrupts are present or imminent, wherein the second state includes autonomous control operations by the controller. A method and computer program are also disclosed.

Abstract: Methods of operating a network node in a RAN may include transmitting control information for a subframe from the network node to a wireless terminal. The control information may include a Time Domain Split (TDS) indication defining a sub-subframe of the subframe, and a duration of the sub-subframe may be less than a duration of the subframe. Moreover, communication of data may be provided between the network node and the wireless terminal during the sub-subframe of the subframe. Methods of operating the wireless terminal may include receiving the control information for the subframe at the wireless terminal from the network node. The control information may include the TDS indication, and communication of the data may be provided between the wireless terminal and the network node during the sub-subframe of the subframe. Related network nodes and wireless terminals are also discussed.

Abstract: A method is proposed for adjusting transmission properties associated with data transfer in time slots of predetermined length, the method comprises transmitting a first transport block S101 using a set of transport transmission properties to a receiving node. A probing block S102 is transmitted to the receiving node using a set of probing transmission properties comprising a reduced robustness in relation to the set of transport transmission properties. The set of transport transmission properties is reconfigured for further transport blocks based on information communicated by the receiving node indicative of success of decoding of the probing block by the receiving node.

Abstract: The present disclosure relates to a method performed in a radio device 4 connected to a communication network 1 comprising a core network (CN) and a Radio Access Network (RAN), where there is a communication bearer between the radio device and the CN via the RAN comprising a radio bearer between the radio device and a RAN node of the RAN, for adapting a Quality of Service (QoS) of the communication bearer. The method comprises, to the CN, sending a request for a first QoS to be associated with the communication bearer. The method also comprises exchanging data over the radio bearer in accordance with the first QoS of the communication bearer. The method also comprises, to the RAN, sending an indication that a second QoS, lower than the first QoS, should be used for the radio bearer. The method also comprises exchanging data over the radio bearer in accordance with the second QoS.

Abstract: A controller arrangement comprising a transceiver capable of communication via a wireless communication network, a controller arranged to control a physical entity at which the controller arrangement is arranged, and an interface between the transceiver and the controller is disclosed. The transceiver is arranged to provide information via the interface about present or imminent interrupts in the communication via the wireless network. The controller is arranged to operate in at least a first state when the information indicates that no interrupts are present or imminent, wherein the first state includes closed loop control from a remote entity via the wireless communication network, and a second state when the information indicates that interrupts are present or imminent, wherein the second state includes autonomous control operations by the controller. A method and computer program are also disclosed.

Abstract: Methods may be provided to operate a network node of a radio access network. Such methods may include transmitting first control information to a wireless terminal, and the first control information may define a frequency resource available for data communication with the wireless terminal over a subframe. After transmitting the first control information, second control information may be transmitted to the wireless terminal. The second control information may define a time resource for a sub-subframe of the subframe. Communication of data may be provided between the network node and the wireless terminal during the sub-subframe of the subframe defined by the frequency resource of the first control information and the time resource of the second control information. Related network nodes and wireless terminals are also discussed.

Abstract: Antenna nodes are controlled to maintain a respective radio cell, each cell having one and the same physical cell identity. The antenna nodes are further controlled to maintain the respective radio cell in a single direction substantially along a path such that each wireless communication device, during movement in a movement direction along the path, can connect either to consecutive antenna nodes towards which the wireless communication device is moving or connect to consecutive antenna nodes away from which the wireless communication device is moving.

Abstract: There is provided a method of estimating channel spread at a receiver of a user equipment, UE, for one antenna port of a network node. The method is performed in the UE. The method comprises acquiring channel estimates for one antenna port of a network node. The method further comprises determining a variation of acquired channel estimates representing subframes associated with a common precoder, the subframes comprising resource blocks scheduled to the UE. The method further comprises estimating the channel spread by using a pre-determined mapping from the determined variation to a channel spread value. A user equipment and a computer program are also provided.

Abstract: The present application relates to a method of a wireless device for interference cancellation (IC) in a cellular radio network system comprising a serving network node serving said wireless device. The method comprises using a first IC method for at least partly removing a time aligned symbol of an interfering radio signal from at least a first symbol of a time slot received from the serving network node. The method also comprises using a second IC method, different from the first IC method, for at least partly removing a non-time aligned symbol of an interfering radio signal from at least a second symbol of said time slot received from the serving network node.

Abstract: There is provided mechanisms for transmitting payload in a subframe. A method is performed by a first network device. The method comprises obtaining a transport block size (TBS) value by accessing an array storing a plurality of TBS values. The TBS value is proportional to number of user data symbols in a subframe of a given subframe length. One and the same array is accessed regardless of the given subframe length. The method comprises transmitting a physical channel carrying payload in the subframe to a second network device. The amount of data in the payload is determined by the TBS value.

Abstract: Methods may be provided to operate a network node in a radio access network, RAN. For example, a first sub-subframe of a subframe may be transmitted wherein the first sub-subframe includes reference signals for a wireless terminal. After transmitting the first sub-subframe, a second sub-subframe of the subframe may be transmitted, wherein the second sub-subframe includes downlink data for the wireless terminal, and wherein the second sub-subframe is free of reference signals. Related wireless terminal methods, network nodes, and wireless terminals are also disclosed.

Abstract: Methods may be provided to operate a network node of a radio access network. Such methods may include transmitting first control information to a wireless terminal, and the first control information may define a frequency resource available for data communication with the wireless terminal over a subframe. After transmitting the first control information, second control information may be transmitted to the wireless terminal. The second control information may define a time resource for a sub-subframe of the subframe. Communication of data may be provided between the network node and the wireless terminal during the sub-subframe of the subframe defined by the frequency resource of the first control information and the time resource of the second control information. Related network nodes and wireless terminals are also discussed.

Abstract: The present disclosure relates to methods of transmitting and receiving transmission feedback in a radio network node. More particularly the disclosure pertains to transmitting and receiving messages acknowledging reception and successful decoding of a transport block in a radio network node. The disclosure also relates to a wireless device providing transmission feedback and to a radio network node receiving the transmission feedback. The disclosure proposes a method, performed in a radio network node, of receiving transmission feedback. The method comprises transmitting, using a set of transmission properties, a transport block to a receiving wireless device and receiving, from the receiving wireless device, an acknowledgement (ACK) confirming reception and successful decoding of the transport block in the receiving wireless device, wherein the ACK defines a decoding margin of the decoding.

Abstract: There is provided mechanisms for transmitting a downlink (DL) grant and DL data to a wireless device. A method is performed by a network node. The method comprises obtaining an indication for providing the DL data to the wireless device. The method comprises transmitting, in a transmission time interval (sTTI) frequency band, the DL grant for the wireless device and the DL data for the wireless device. A position of the DL grant in the sTTI frequency band identifies a position of the DL data in the sTTI frequency band. There is also provided a network node configured to perform such a method. There is further provided mechanisms for receiving a DL grant and DL data from a network node, as performed by a wireless device.

Abstract: The present disclosure relates to a method of a first radio device using a first radio access technology, RAT, for communication with a second radio device. The method comprises listening for any transmission in a frequency channel of an unlicensed radio frequency band. The method also comprises determining whether the channel is idle. The method also comprises transmitting a first radio message on the channel in accordance with a second RAT, different than the first RAT. The method also comprises determining transmission properties for a message to be transmitted on the channel in accordance with the first RAT, based on the determining of whether the channel is idle. The method also comprises transmitting a second radio message on the channel, to the second radio device and in accordance with the first RAT using the determined transmission properties.

Abstract: A controller arrangement comprising a transceiver capable of communication via a wireless communication network, a controller arranged to control a physical entity at which the controller arrangement is arranged, and an interface between the transceiver and the controller is disclosed. The transceiver is arranged to provide information via the interface about present or imminent interrupts in the communication via the wireless network. The controller is arranged to operate in at least a first state when the information indicates that no interrupts are present or imminent, wherein the first state includes closed loop control from a remote entity via the wireless communication network, and a second state when the information indicates that interrupts are present or imminent, wherein the second state includes autonomous control operations by the controller. A method and computer program are also disclosed.