Abstract: In accordance with the example embodiments of the invention there is at least a method and an apparatus to perform determining, by the network node, an occurrence of collisions in a communication associated with the network device of the communication network, where the determining is using a sensing threshold; and based on the determined occurrence of collisions, updating an outer-loop link adaptation offset of the communication.

Abstract: Methods and apparatus, including computer program products, are provided for small cell searching. In one aspect there is provided a method. The method may include searching, in a first mode, for a first cell including a first base station based on a first event; changing, based on a second event, to a second mode having a search rate different than the first mode, wherein the second mode searches for the first cell including the first base station; and establishing a connection from a user equipment to the first base station serving the first cell. Related apparatus, systems, methods, and articles are also described.

Abstract: The exemplary embodiments of the invention relate to at least a method, computer program, and apparatus to transmit a beacon from a first access node to a first user terminal associated with the first access node and also to a second user terminal associated with a second access node, where the beacon includes information indicating a priority of the first access node with respect to a radio resource allocation, and receive feedback from the first user equipment associated with the first access node, where the feedback includes information indicating a priority of the second access node.

Abstract: Handover failure modes are identified by logging information associated with at least one of a handover failure or a radio link failure. The information identifies whether or not a user equipment was engaged in an exchange of at least one of data traffic or control traffic with a network at the time that the handover failure or radio link failure occurred. The information is stored in a non-transitory computer-readable medium, and the information is reported to the network. The information is reported using a radio link failure or connection failure information signaling message. The severity of the handover failure or radio link failure is evaluated based upon the information.

Abstract: Methods, apparatuses, and computer program products for discontinuous reception (DRX) are provided. One method may include configuring a user equipment with a first inactivity timer and a second inactivity timer. The user equipment may be further configured, after decoding a physical downlink control channel (PDCCH) indicating a new data transmission, to start the first inactivity timer for a first N times of active time, and to start the second inactivity timer for times subsequent to the first N times. If a short DRX cycle is configured, expiry of the first inactivity timer does not start a short discontinuous reception (DRX) cycle, while expiry of the second inactivity timer starts the short discontinuous reception (DRX) cycle.

Abstract: The invention is related to a method comprising: receiving a beacon signal from at least one transmitter; measuring total received interference power; determining strength of the received at least one beacon signal; determining at least one offset value by using the information the at least one beacon signal comprises; generating estimates of received interference power values transmitter-wise by using the determined at least one offset value and the determined strength of the received at least one beacon signal; combining the transmitter-wise estimated received interference power values for obtaining an estimated total received interference power; and subtracting the estimated total received interference power from the measured total received interference power for obtaining a residual interference power, the residual interference power originating from uncooperative devices.

Abstract: Methods and apparatus, including computer program products, are provided resource sharing. In some example embodiments, there may be provided a method, which may include receiving information including location information for at least one cell of a primary resource group, and further including a primary resource being used by the at least one cell; and determining at least one secondary resource group based on the received information. Related apparatus, systems, methods, and articles are also described.

Abstract: Disclosed is a User Equipment UE, which establishes connection with a macro eNB (or master eNB) and a small cell eNB (or secondary eNB), measures channel quality (CQI) of a signal received from the small cell eNB, derives a second channel quality based on the measured channel quality of the signal received from the small cell eNB, transmits information associated with the measured channel quality of the signal to the small cell eNB and transmits information associated with the second channel quality to the macro eNB.

Abstract: Various communication systems may benefit from optimized transmissions. A method can include receiving data to be forwarded to a first wireless device. The method can also include determining the data as delay tolerant data. Moreover, the method can include defining a role of at least one second wireless device for forwarding the delay tolerant data. Also, the method can include transmitting the delay tolerant data to the second wireless device to be forwarded to the first wireless device.

Abstract: Improved systems and techniques for communication in an environment in which muting of resources is used to avoid interference between cells. If a cell, represented by a macro eNB for example, is muting resources, those resources can be made available, under appropriate conditions, to user devices, such as UEs, engaging in device to device communication. Allocation of muted resources to D2D UEs can be based on meeting of conditions, such as that the D2D UEs be outside of a specified proximity to a cell, such as a small cell, using the resources, or that the D2D UEs transmit at less than a specified power. The UEs may take measurements to determine if the conditions are met and report the measurements to their base stations, which then determine whether to allocate the muted resources and configure the UEs with resource allocation information.

Abstract: Methods and apparatus, including computer program products, are provided for dual connectivity. In one aspect there is provided a method. The method may include switching, by a user equipment, between a first carrier associated with a first base station and a second carrier associated with a second base station, wherein the switching is performed based on at least a configuration defining when to perform the switching; and indicate an extension of a time allocated by the configuration at the first base station. Related apparatus, systems, methods, and articles are also described.

Abstract: The application relates to managing interference at the user equipment caused by femtocell base stations, such as home base stations, home E-UTRAN Node B base stations, and the like, configured with closed subscriber groups by allowing the user equipment to access a femtocell base station which would normally not allow access to the user equipment because the user equipment is not a member of the CSG being served by the femtocell base station. When a user equipment is within range of HeNB serving a CSG cell to which the user equipment is allowed access, referred to as the “allowed HeNB”, the user equipment may encounter severe interference from another, adjacent HeNB serving another CSG cell, which the user equipment may not be allowed access to, referred to as the “not allowed HeNB”, and which may have a stronger signal in terms of power than the HeNB including the CSG to which access is allowed.

Abstract: Methods, apparatuses, a non-transitory computer-readable medium and system are provided for adaptation of mobility parameters based on user equipment measurement. A method may include determining at least one of measurement rate or measurement availability (413); and adapting at least one of an event triggering or a measurement filtering, depending on at least one of the measurement rate or the measurement availability (415). A method may further include adapting one or more mobility parameters based on measurement availability or measurement rate (415); and communicating the rules or adaptations to the rules to a user equipment (420). In some example embodiments, the methods are used for making handover decision or causing a report to be sent from a user equipment.

Abstract: Methods and apparatus, including computer program products, are provided resource sharing. In some example embodiments, there may be provided a method, which may include receiving information including location information for at least one cell of a primary resource group, and further including a primary resource being used by the at least one cell; and determining at least one secondary resource group based on the received information. Related apparatus, systems, methods, and articles are also described.

Abstract: A method includes, when operating in a connected state in a first cell such as a macro cell, reporting a presence of a second cell such as a small cell to the macro cell; receiving a first offloading command; storing connected state context information associated with the macro cell; establishing a connected state with the small cell; storing connected state context information associated with the small cell; performing at least one data offloading operation with the small cell and, upon a termination of data offloading operation, reestablishing the connected state with the macro cell using the stored connected state context information associated with the macro cell.

Abstract: Methods and apparatus, including computer program products, are provided for reversible handovers. In one aspect there is provided a method. The method may include starting a timeout period in response to an event associated with a handover of a user equipment from a source cell to a target cell; and waiting, until an expiration of the timeout period, to detach from the source cell to enable the user equipment to perform a reverse handover back to the source cell. Related apparatus, systems, methods, and articles are also described.

Abstract: Methods, apparatuses, and computer program products for discontinuous reception (DRX) are provided. One method may include configuring a user equipment with a first inactivity timer and a second inactivity timer. The user equipment may be further configured, after decoding a physical downlink control channel (PDCCH) indicating a new data transmission, to start the first inactivity timer for a first N times of active time, and to start the second inactivity timer for times subsequent to the first N times. If a short DRX cycle is configured, expiry of the first inactivity timer does not start a short discontinuous reception (DRX) cycle, while expiry of the second inactivity timer starts the short discontinuous reception (DRX) cycle.

Abstract: A user equipment UE selects between a first scanning mode and a second scanning mode using at least inputs of signal quality of a link with an access node and at least one of UE speed and network type of the access node. It then determines a scanning rate using the selected scanning mode and the UE speed, and detects and measures inter-frequency neighbor cells according to the determined scanning rate. In one example both modes the increase scanning rate for increased UE speeds, except that for the first mode speeds above Vt1 yield a zero scanning rate regardless of UE speed and for the second mode speeds above Vt2 yield a constant maximum scanning rate regardless of UE speed. In an embodiment the second mode is selected when the UE speed is >Vt1, and the signal quality is less than a predetermined minimum. Various other examples are detailed.

Abstract: Methods, apparatuses, a non-transitory computer-readable medium and system are provided for adaptation of mobility parameters based on user equipment measurement. A method may include determining at least one of measurement rate or measurement availability (413); and adapting at least one of an event triggering or a measurement filtering, depending on at least one of the measurement rate or the measurement availability (415). A method may further include adapting one or more mobility parameters based on measurement availability or measurement rate (415); and communicating the rules or adaptations to the rules Parameters to a user equipment (420). In some example embodiments, the methods are used for making handover decision or causing a report to be sent from a user equipment.

Abstract: Various communication systems may benefit from mobility state estimation (MSE) enhancement for small cell and heterogeneous network (HetNet) deployments of the same. For example, a first user equipment (UE) and a second user equipment traveling through a HetNet may pass through a varying number of cells causing a poor MSE for each. A method may comprise performing a MSE. The method may include determining whether at least one cell change results in UE staying less than a predetermined time in a cell and filtering out from the MSE the at least one cell change, when the UE stays less than the predetermined time in the cell. The method may also comprise including the at least one cell change in the MSE when the UE stays at least the predetermined time in the cell.