Abstract: Embodiments herein disclose e.g. a method performed by a communication terminal for handling signal measurements in a wireless communication network (1). The communication terminal may adapt a measurement procedure to construct a measurement sample of a reference signal from a cell operated by a radio network node (12); or adjust a filter algorithm of the measurement procedure based on one or more previous valid measurement samples of a previous reference signal from the cell, when measuring on the cell where reference signals are not available for the communication terminal at every designated reference signal occasion.

Abstract: Systems and methods relating to reconfiguration of a Carrier Aggregation (CA) enabled wireless device using a measurement gap are disclosed. In some embodiments, a method of operation of a CA enabled wireless device in a cellular communications network comprises reconfiguring the wireless device during a measurement gap such that the wireless device is enabled to receive a first set of one or more carriers after the measurement gap that are different than a second set of one or more carriers that the wireless device was receiving before the measurement gap. In some embodiments, the reconfiguration of the wireless device during the measurement gap enables reconfiguration of the wireless device for measurements on a Secondary Component Carrier (SCC) of a configured and deactivated Secondary Cell (SCell) of the wireless device without serving cell interruption.

Abstract: A method of selecting operation antennas in a multiple input receiver having a plurality of antennas connected to respective antenna ports of the receiver may be provided to save energy and/or other resources. The method comprises determining pairwise correlation of propagation channels among the plurality of antenna ports, respectively, determining a candidate first number of antenna ports to use for operation, selecting the first number of antenna ports among the plurality of antenna ports, wherein the selecting comprises selecting antenna ports based on mutual correlation among the plurality of antennas, and operating the multiple input receiver using the selected first number of antenna ports if there is no significant performance gain from using all of the plurality of antenna ports. A receiver, communication device and computer program for the same, as well as method, computer program and equipment for testing such a receiver are also disclosed.

Abstract: Methods of operating a wireless terminal may be provided. A high-speed indication may be received for a cell of a network node indicating that the cell is adapted to operate in a high-speed environment, and operation of the wireless terminal may be adapted to communicate through the cell of the network node in the high-speed environment responsive to receiving the high-speed indication. Methods of operating a node of a wireless communication network may also be provided. Communication service may be provided through a cell to a plurality of wireless terminals in a high-speed environment, and a high-speed indication may be transmitted through the cell to one of the plurality of wireless terminals, with the high-speed indication indicating that the cell is adapted to operate in a high-speed environment.

Abstract: Embodiments herein relate to a method performed by a radio network node (12) for configuring a wireless device (10), being served by the radio network node (12), for performing radio measurements. The radio network node (12) determines at least two groups, a first and a second group, of carriers out of a number of carriers, wherein the first group comprises at least one carrier to perform radio measurements on by the wireless device (10) when the wireless device (10) being configured with a DRX cycle above a threshold. The radio network node (12) furthermore transmits a message comprising an indication of the at least one carrier of the first group and informing the wireless device (10) which carrier or carriers to perform radio measurements on when the wireless device (10) is configured with the DRX cycle above the threshold.

Abstract: A method, apparatus and computer program product are provided in order to enhance network notification of secondary cell activation. In a first embodiment, the method includes receiving a secondary cell activation command, activating a secondary cell, and transmitting a PHR indicating activation of the secondary cell. In a second embodiment, the method includes receiving a secondary cell activation command, activating a secondary cell, and transmitting a signal indicating an expected time period until activation of the secondary cell. In a third embodiment, the method may optimize implicit SCell deactivation by receiving a secondary cell activation command, activating a secondary cell, receiving a PDCCH order for an uplink grant or a downlink assignment, and starting a secondary cell deactivation timer associated with the secondary cell in response to receiving the PDCCH order. A corresponding apparatus and computer program product are also provided.

Abstract: According to certain embodiments, a method for activating and deactivating multiple secondary cells (150A-B) includes receiving a first message requesting activation or deactivation of a first secondary cell (first SCell) (150A) for a first carrier. In response to the first message, a first procedure is initiated to activate or deactivate the first SCell (150A). The wireless device (110A) may have a first delay period (Tactivate_basic) within which to complete the first procedure. While performing the first procedure to activate or deactivate the first SCell (150A), a second message to activate, deactivate, configure or denconfigure a second SCell (150B) for a second carrier is received.

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: According to certain embodiments, a method for activating and deactivating multiple secondary cells (150A-B) includes receiving a first message requesting activation or deactivation of a first secondary cell (first SCell) (150A) for a first carrier. In response to the first message, a first procedure is initiated to activate or deactivate the first SCell (150A). The wireless device (110A) may have a first delay period (Tactivate_basic) within which to complete the first procedure. While performing the first procedure to activate or deactivate the first SCell (150A), a second message to activate, deactivate, configure or deconfigure a second SCell (150B) for a second carrier is received.

Abstract: A handover procedure is described where a user equipment, UE, is pre-configured by a network node of a source cell with one or more target cells and associated conditions to be fulfilled for the UE to autonomously decide when to execute the handover. The UE may be pre-configured while in good radio conditions, being connected to the source cell, and hence the UE does not risk going out of source cell coverage before being handed over to a target cell.

Abstract: In some embodiments, a method of multi-connectivity operation of a wireless device in Discontinuous Reception (DRX) comprises determining whether a first DRX ON duration in a first DRX cycle configured for use by the wireless device in a first Cell Group (CG) for multi-connectivity operation and a second DRX ON duration in a second DRX cycle configured for use by the wireless device in a second CG for multi-connectivity operation partially overlap in time with one another. The method further comprises, upon determining that the first DRX ON duration and the second DRX ON duration partially overlap, taking one or more actions that mitigate the partial overlap between the first DRX ON duration in the first DRX cycle and the second ON duration in the second DRX cycle. By avoiding partial overlap, interruptions at the wireless device as a result of transitioning between DRX states can be mitigated or avoided.

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: It is presented a method for Global System for Mobile communications, GSM, cell searches. The method is performed in a wireless terminal of a cellular network when the wireless terminal is active in a non-GSM radio access technology and comprising the steps of: scheduling reception of a part of a frame burst of a GSM frequency in said cellular network for said wireless terminal; searching digital samples received on said GSM frequency for a predefined logical channel pattern. A corresponding wireless terminal, computer program and computer program product are also presented.

Abstract: A wireless device and a method for a wireless device served by a first network node on a primary cell (PCell) is provided. The wireless device is capable of using at least two secondary serving cells (SCells). A first request to perform a measurement on at least one cell on a first secondary component carrier (SCC) with a deactivated first SCell using at least a first measurement cycle is received. A second request to perform a measurement on at least one cell on a second SCC with a deactivated second SCell using at least a second measurement cycle is received. An effective serving cell interruption probability (Peff) of missed at least one of Acknowledgement and Negative-Acknowledgement signaling in an uplink direction is determined based on at least the first measurement cycle and the second measurement cycle. A serving cell interruption probability is ensured to not exceed the determined Peff.

Abstract: A method for a user equipment (UE) to manage measurement event trigger criteria including determining a first pathloss for a serving cell and a second pathloss for at least one neighbor cell; adjusting the measurement event trigger criteria based on at least one of the determined first pathloss, the determined second pathloss and a weight factor X received from the serving cell; and triggering a measurement event based on the adjusted measurement event trigger criteria.

Abstract: A wireless device and a method for a wireless device served by a first network node on a primary cell (PCell) is provided. The wireless device is capable of using at least two secondary serving cells (SCells). A first request to perform a measurement on at least one cell on a first secondary component carrier (SCC) with a deactivated first SCell using at least a first measurement cycle is received. A second request to perform a measurement on at least one cell on a second SCC with a deactivated second SCell using at least a second measurement cycle is received. An effective serving cell interruption probability (Peff) of missed at least one of Acknowledgement and Negative-Acknowledgement signaling in an uplink direction is determined based on at least the first measurement cycle and the second measurement cycle. A serving cell interruption probability is ensured to not exceed the determined Peff.

Abstract: According to one embodiment, an apparatus may include a memory and a processor. The memory may store control information. The processor may determine, based at least in part upon the control information, an expected packet loss rate associated with performing a radio operation. The processor may then communicate the expected packet loss rate to a network node.

Abstract: A method in a network node comprises determining (610) whether at least a first D2D capable UE is or will be performing a D2D operation, and determining whether the at least the first D2D capable UE is or will be performing cellular operation. The method comprises adapting (620) activity and/or inactivity state configurations for the at least the first D2D UE based on the determining.

Abstract: A wireless device obtains information associated with N layers, which may be used for cell reselection. The information comprises which M layers out of the N layers are to be used for monitoring according to detection and measurement requirements for absolute priority reselection. The wireless device monitors layers, of any priority, only out of the M layers, when one or more first signal measurements on a serving cell are below or equal to a first threshold, or when one or more second signal measurements on the serving cell are below or equal to a second threshold. The wireless device monitors layers with a priority higher than a priority of the serving layer out of the N layers when the one or more first signal measurements are above the first threshold, and when the one or more second signal measurements are above the signal threshold.

Abstract: The present disclosure concerns radio communication. More particularly, the present disclosure introduces a method and apparatuses (610) for adaptive control of UE measurements in dependence of UE data activity level (e.g., high activity vs. low activity).