Abstract: It is provided a method, comprising checking if an option grant for an uplink transmission is received, wherein the option grant comprises, for a subframe, a first allocation option to start the uplink transmission and a second allocation option to start the uplink transmission, wherein the first allocation option is earlier in the subframe than the second allocation option; deciding if the uplink transmission is allowed at the first allocation option; starting the uplink transmission at the first allocation option if the option grant is received and the uplink transmission is allowed at the first allocation option; deciding if the uplink transmission is allowed at the second allocation option; starting the uplink transmission at the second allocation option if the option grant is received, the uplink transmission is not allowed at the first allocation option, and the uplink transmission is allowed at the second allocation option.

Abstract: A user equipment (UE) is disclosed. The UE includes a receiver and a processor that receive a radio resource control (RRC) signal including uplink (UL) sounding reference signal (SRS) configuration information. The UE also receives a semi-persistent scheduling (SPS) message to activate transmission of UL SRSs The UE may then transmit UL SRSs in a time and frequency pattern based on at least the UL SRS configuration information. A UE method and an eNode-B are also disclosed.

Abstract: According to an example aspect of the present invention, there is provided a method for a cellular wireless device, including, obtaining, from a cellular base station, a first opportunity for an uplink data transmission on an unlicensed frequency band, wherein the first opportunity is within a first period reserved for first transmission opportunities on a frequency channel, upon detecting that the frequency channel is occupied at a beginning of the first opportunity, determining a second opportunistic resource for the uplink data transmission or a downlink transmission and receiving or transmitting using the second opportunistic resource.

Abstract: A user equipment (UE) may determine channel state information (CSI) reports with each CSI report being related to a component carrier. The UE may send a subframe with CSI report(s) on a physical uplink control channel (PUCCH). When a collision occurs in the subframe having the CSI report(s) on the PUCCH a lower priority CSI report may be dropped from the transmission.

Abstract: Various communication systems may benefit from a reduction in latency. For example, communication systems may benefit from an improved transmission of an uplink reference signal in an uplink channel. A method, in certain embodiments, includes determining by a user equipment a candidate location of a transmission of an uplink reference signal in a channel. The method also includes determining by the user equipment a triggering window associated with the candidate location of the transmission of the uplink reference signal in the channel. In addition, the method includes receiving an uplink grant for a data transmission from a base station. Further, the method includes transmitting the uplink reference signal based on the uplink grant being at least partially within the triggering window.

Abstract: According to an aspect, there is provided an access node for configuring relaying using one or more terminal devices. The access node is configured to select the one or more terminal devices connected to the access node for relaying a signal from the source terminal device to the access node based on radio link measurements. Further, the access node is configured to configure each of the one or more terminal devices to decode each received primary uplink resource and if the decoding is successful, to cause transmitting a transport block corresponding to the decoded primary uplink resource on a secondary uplink resource using a pre-defined starting position to a target network node. The access node is also configured to receive at least one transport block transmitted from the source terminal device via one or more terminal devices on one or more secondary uplink resources.

Abstract: It is provided a method, comprising estimating a future instantaneously required processing effort required by a terminal to process symbols received in at least one first transmission time interval and at least one second transmission time interval; checking if the estimated future instantaneously required processing effort exceeds a capability of the terminal to process the symbols; modifying a future scheduling of the symbols for the terminal if the future instantaneously required processing effort exceeds the capability; wherein the first transmission time intervals and the second transmission time intervals are of different types.

Abstract: A method includes determining, by a terminal device, at least one transmission power target level for an intended transmission on at least one sub-band. The method also includes performing a listen before talk procedure and measuring interference, and determining at least one power offset for transmission as outcome of the listen before talk procedure and the measured interference. The method further includes transmitting at least one message on at least one listen before talk allowed sub-band, using a transmission power determined based at least in part on the at least one transmission power target level for the intended transmission on the at least one sub-band, and the at least one power offset.

Abstract: A method including receiving one or more data packets wirelessly in one or more downlink transmission opportunities on one or more radio carriers, receiving scheduling information including an indication of uplink control information to be transmitted related to at least one of the one or more data packets, and causing wireless transmission of the uplink control information in an uplink transmission opportunity.

Abstract: There is provided a method comprising controlling receiving, at a node, subframe type configuration information, said subframe type configuration information defining at least one subframe type of a group of subframes to be used in a secondary cell, said secondary cell configured to provide at least one of licensed-assisted access, licensed shared access and co-primary sharing access and using said subframe type configuration information to cause the node to operate in accordance with that configuration in the secondary cell.

Abstract: An apparatus comprising means for: receiving a first bandwidth part configuration caused to support dynamic adaptation of transmission bandwidth part in listen before talk communication systems, the first bandwidth part configuration comprising at least two bandwidth parts: a first bandwidth part and at least one associated temporal bandwidth part; determining which of the at least two bandwidth parts is used for a transmission burst; determining for the transmission burst a second, temporal, bandwidth part configuration caused to determine the transmission parameters for the transmission burst based on the at least one associated temporal bandwidth part and the determining which of the at least two bandwidth parts is used for the transmission burst.

Abstract: A user equipment (UE) is disclosed. The UE includes a receiver and a processor that receive a radio resource control (RRC) signal including uplink (UL) sounding reference signal (SRS) configuration information. The UE also receives a semi-persistent scheduling (SPS) message to activate transmission of UL SRSs The UE may then transmit UL SRSs in a time and frequency pattern based on at least the UL SRS configuration information. A UE method and an eNode-B are also disclosed.

Abstract: There is provided a method comprising determining, at a first access point, whether a carrier from a plurality of carriers is a primary listen-before-talk carrier or a secondary listen-before-talk carrier and providing information using the carrier, said information comprising an indication of whether the respective carrier is a primary listen-before-talk carrier or a secondary listen-before-talk carrier.

Abstract: A user equipment (UE) may determine channel state information (CSI) reports with each CSI report being related to a component carrier. The UE may send a subframe with CSI report(s) on a physical uplink control channel (PUCCH). When a collision occurs in the subframe having the CSI report(s) on the PUCCH a lower priority CSI report may be dropped from the transmission.

Abstract: There is provided a method comprising controlling receiving, at a node, subframe type configuration information, said subframe type configuration information defining at least one subframe type of a group of subframes to be used in a secondary cell, said secondary cell configured to provide at least one of licensed-assisted access, licensed shared access and co-primary sharing access and using said subframe type configuration information to cause the node to operate in accordance with that configuration in the secondary cell.

Abstract: A method including determining whether an apparatus is to operate in a first, second or third mode of operation; wherein said first mode of operation includes a first level of activity, said second mode of operation includes a second level of activity that is lower than said first level of activity, and said third mode of operation includes a third level of activity that is lower than said second level of activity; applying a first reference signal transmission regime when in said second mode of operation; and applying a second reference signal transmission regime when in said third mode of operation.

Abstract: The disclosure relates operation where information of at least one selected resource from a pool of resources for control signals in uplink is signalled in downlink. At least one resource is selected from a pool of resources for control signals in the uplink, where after information of the selected at least one resource is signalled in the downlink. Communication of control signals in the uplink by at least one device is facilitated such that at least one non-selected resource from the pool of resources is used in sending of control signals in the uplink. The at least one resource is implicitly derived in accordance with a predefined rule.

Abstract: Systems, methods, apparatuses, and computer program products for dynamic transmit diversity fallback are provided. One method may include configuring a user equipment with a maximum number of multiple-input multiple-output (MIMO) layers used for transmission mode 9 or transmission mode 10 scheduling, and performing, by a network node, at least one of transmission mode 9 or transmission mode 10 scheduling. The configuring may include indicating to the user equipment to use a modified mapping table providing transmit diversity fallback for the at least one of transmission mode 9 or transmission mode 10 scheduling.

Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising at least one processing core, at least one memory including computer program code, the at least one memory and the computer program code being configured to, with the at least one processing core, cause the apparatus at least to participate in a cooperative wireless transmission of a data block with peer apparatuses, wherein the cooperative transmission comprises an early transmit opportunity and a late transmit opportunity starting after the early transmit opportunity starts, wherein the cooperative transmission may comprise at least one further late transmission opportunity starting after the late transmit opportunity, perform a listen-before-talk test to check, if first radio resources are available, and responsive to the listen-before-talk test indicating the first resources are available, initiate a transmission of a data block on the first radio resources during the early transmit opportunity.

Abstract: A method comprises receiving in a first subframe of a burst from a base station a downlink transport block for which an acknowledgement is required. A first uplink channel in which an acknowledgement of said transport block to be provided is prepared. The first uplink channel is independent of transmission information. The first prepared uplink channel is transmitted with the acknowledgement in a later burst.