Abstract: A radio network node (RNN) (202) and a method therein, for handling of changing primary cell from a first cell (204) to a second cell (206) during re-selection of primary cell of a user equipment (UE) (208). The RNN is configured to serve the first cell, the UE is located within the first cell and is served by the RNN, and RNN and the UE are comprised in a communications system (200). The RNN transmits an RRCConnectionReconfiguration signal to the UE, which signal comprises an indication that the UE does not need to perform a random access procedure for the second cell when changing primary cell from the first cell to the second cell.

Abstract: A method in a user equipment for deciding whether to send an uplink transmission to a radio access network node is provided. The user equipment and radio access network node are comprised in a communications network. The user equipment is configured with Discontinuous Reception (DRX), wherein the user equipment is in active time or not in active time. The user equipment decides whether to send the uplink transmission at a transmission time t, based on the DRX status of the user equipment at a predefined earlier time instance relative to the transmission time t.

Abstract: According to some embodiments, a method performed by a user equipment for indicating uplink data comprises determining a data volume indicator (DVI) representing an amount of uplink data for transmission by the user equipment and encoding the DVI in a media access control (MAC) protocol data unit (PDU). Encoding the DVI in the MAC PDU comprises encoding the DVI with a common control channel (CCCH) MAC service data unit (SDU), and encoding a logical channel identifier (LCID) value in a MAC subheader of the MAC PDU that indicates that the MAC PDU includes the CCCH MAC SDU and the DVI. The method further comprises transmitting the MAC PDU to a network node. Particular embodiments include a method in a network node for decoding the DVI in the MAC PDU.

Abstract: The proposed technology relates to methods and radio network nodes for Explicit Congestion Notification, ECN, marking of user traffic in wireless communication networks. For example, a method performed by a sending radio network node (10) comprises the step of monitoring (S10) a congestion metric on a data radio bearer, and the step of transmitting (S20) control information indicating traffic congestion on the same data radio bearer, based on the monitored congestion metric, to a receiving radio network node (20).Further, a method performed by a receiving radio network node (20) comprises the step of receiving (S100) control information indicating traffic congestion on a data radio bearer, based on a congestion metric, from a sending radio network node (10), and the step of marking (S200) next ECN-capable user packet of the user traffic on the same data radio bearer with ECN marking, based on the received control information.

Abstract: Systems and methods avoid the need to coordinate preambles between UEs performing random access on their PCells and SCells. According to an embodiment, a method for random access in a radio communication system includes: transmitting, by a network node, a random access response including a Radio Network Temporary Identifier (RNTI) which has a first value if the random access is associated with a first cell and a second value if the random access is associated with a second cell, the first value being different than the second value and the first cell being different from the second cell.

Abstract: A method in a user equipment for deciding whether or not to send an uplink transmission (ie. Channel State Information, CSI, and/or Sounding Reference Signal, SRS) to a radio access network node (Node B) is provided. The user equipment and radio access network node (Node B) are comprised in a communications network. The user equipment is configured with Discontinuous Reception, DRX, to be in active time or not be in active time. The user equipment decides (201) whether or not to send the uplink transmission at a transmission time t, based on whether the user equipment was in active time or not at a predefined earlier time instance relative to the transmission time t.

Abstract: Mobile devices exchange indications of their supported access stratum (AS) versions with each other during device-to-device communication, to determine a common AS version for subsequent communication. In an example method, a first wireless device receives a first incoming version indicator from a second wireless device, the first incoming version indicator identifying an AS version supported by the second wireless device, and transmits a device version indicator in one or more outgoing messages, in response to determining that the first incoming version indicator is unknown to the first wireless device or that the first incoming version indicator corresponds to an AS version that is not supported by the first wireless device. The transmitted device version indicator corresponds to the most recent AS version of two or more AS versions supported by the first wireless device.

Abstract: Techniques for avoiding or reducing unnecessary CSI and/or SRS transmissions in a wireless communications system. In an example method, a user terminal periodically transmits (620) CSI and/or SRS according to corresponding periodic CSI transmission opportunities or periodic SRS transmission opportunities, or both, during a first period in which the UE is operating according to a short DRX cycle. In a second period immediately following the first period and during which the user terminal is operating according to a long DRX cycle, the user terminal reduces or suppresses (630) periodic transmissions of CSI and/or SRS. This may be done, for example, by suppressing periodic transmission of CSI and/or SRS, after a first delay time or first delay times or by reducing the rate of transmission of CSI and/or SRS, after a second delay time or second delay times. A combination of these and other disclosed approaches may be used.

Abstract: Methods and operations in mobile terminals and base stations are disclosed which control uplink signaling. A method in a mobile terminal controls uplink signaling to a base station, and includes receiving a MAC CE from the base station. The MAC CE indicates whether at least one of SRS or CQI reports should be transmitted for one or more serving cells configured for the mobile terminal. Transmission of at least one of the SRS or the CQI reports for the one or more serving cells from the mobile terminal to the base station is selectively activated and deactivated responsive to the MAC CE. Related methods and operations by base stations and mobile terminals are disclosed.

Abstract: The present disclosure relates to a method in a network node for controlling DRX to be applied by a user equipment, UE, connected to said network node. Said network node can order the UE to enter a first DRX cycle by means of a specific control element. The method comprises the step of ordering the user equipment to enter a second DRX cycle by means of a modified usage of said specific control element. The disclosure furthermore relates to a network node, a method in a user equipment and a user equipment.

Abstract: Embodiments relate to a method and mobile node in a wireless communication system for determining when to transmit a signal. The mobile node operates in the wireless communication system comprising a first cell and a second cell where the mobile node is synchronized to the first cell. The method comprises determining a timing reference based on a reception of a downlink transmission in the first cell. The method further comprises transmitting the signal, to be received in the second cell, at a point in time based on the timing reference and a timing advance value of the first cell.

Abstract: In one aspect, the teachings herein provide a new mechanism for signaling in a manner that makes advantageous use of preexisting identifiers that are defined for a communication network by an applicable communication standard or protocol according to a “standard” use, by temporarily repurposing one or more such identifiers for an alternate use differing from the standard use. For example, a network base station or other node knows or learns that a given wireless device operating in the network is compatible with the alternate use, selects a given one of the identifiers and temporarily repurposes its for an alternate use, e.g., where the alternate use provides a new signaling mechanism between the network and the compatible device. These operations include limiting the repurposing to occasions involving compatible devices and avoiding avoid conflicts with standard usage involving non-compatible devices.

Abstract: A UE (30) configured in multi-carrier with at least one secondary cell (SCell) may send feedback signaling to the network when measurement gaps are active, which prevent the UE (30) from communicating on the primary cell (PCell). Criteria, signaling means, and pre-defined rules are described for selecting feedback signaling and for selecting the alternative cell (e.g., suitable SCell) for transmitting the selected feedback signaling to the network node during the measurement gaps. Similarly, a SCell may be used to receive scheduling information during measurement gaps.

Abstract: Mobile devices exchange indications of their supported access stratum (AS) versions with each other during device-to-device communication, to determine a common AS version for subsequent communication. In an example method, a first wireless device receives a first incoming version indicator from a second wireless device, the first incoming version indicator identifying an AS version supported by the second wireless device, and transmits a device version indicator in one or more outgoing messages, in response to determining that the first incoming version indicator is unknown to the first wireless device or that the first incoming version indicator corresponds to an AS version that is not supported by the first wireless device. The transmitted device version indicator corresponds to the most recent AS version of two or more AS versions supported by the first wireless device.

Abstract: A method performed in a network node for scheduling a communication that includes transmitting to the communication device, a configuration message relating to semi-persistent scheduling. The configuration message includes an information element indicating a periodicity of the semi-persistent scheduling, wherein the information element has a value that corresponds to a periodicity of every 1 subframe, every 2 subframes, every 3 subframes, every 4 subframes, every 5 subframes, every 6 subframes, every 7 subframes, every 8 subframes or every 9 subframes.

Abstract: Methods, devices, and computer program products for status reporting in a network are provided. In some embodiments, mechanisms to delay responding to a received request for status information (“a polling request”) or the triggering or transmission of a status message caused by a reception of a polling request, or to delay the triggering or transmission of the polling request itself are provided, such that redundant transmissions maybe minimized and power consumption may be optimized.

Abstract: Embodiments herein relate to a wireless device (10) for handling access to a radio base station (12) in a wireless communication network (1), the wireless device (10) being configured to: initiate a random access procedure in the wireless communication network (1); determine that a problem with the random access procedure has occurred when a certain condition is fulfilled; and perform at least one of the following, when determined that a problem with the random access procedure has occurred: delay a next random access preamble transmission attempt; abort from a higher layer the random access procedure immediately; and stop the random access procedure at a lower layer.

Abstract: A method in a User Equipment, UE, for managing an extended Discontinuous Reception, DRX, cycle mode. The UE is operating in a network and is in a Radio Resource Control, RRC, connected state. The UE enters (401) the extended DRX cycle mode when a first criterion is satisfied. The first criterion relates to anyone or more out of that the UE has not been scheduled by the network during a specific time duration, that the UE has completed a predefined or configured number of long DRX cycles when being in a long DRX cycle mode, that the UE has received an order from the network to enter to the extended DRX cycle mode.

Abstract: Methods and operations in mobile terminals and base stations are disclosed which control uplink signaling. A method in a mobile terminal controls uplink signaling to a base station, and includes receiving a MAC CE from the base station. The MAC CE indicates whether at least one of SRS or CQI reports should be transmitted for one or more serving cells configured for the mobile terminal. Transmission of at least one of the SRS or the CQI reports for the one or more serving cells from the mobile terminal to the base station is selectively activated and deactivated responsive to the MAC CE. Related methods and operations by base stations and mobile terminals are disclosed.

Abstract: A radio network node (RNN) (202) and a method therein, for handling of changing primary cell from a first cell (204) to a second cell (206) during re-selection of primary cell of a user equipment (UE) (208). The RNN is configured to serve the first cell, the UE is located within the first cell and is served by the RNN, and RNN and the UE are comprised in a communications system (200). The RNN transmits an RRCConnectionReconfiguration signal to the UE, which signal comprises an indication that the UE does not need to perform a random access procedure for the second cell when changing primary cell from the first cell to the second cell.