Abstract: The disclosure relates to a method performed in a first network node for enabling dual connectivity for a communication device with the first network node and a second network node, wherein the communication device has at least one radio bearer set up with the first network node. The method comprises providing, to the second network node, a radio resource configuration request for the communication device and limits within which the second network node is to configure radio resources for the communication device, and receiving, from the second network node, a suggested radio resource configuration for the communication device. The disclosure also relates to network nodes, method in second network node and second network node, computer programs and computer program products.

Abstract: The present invention relates to a method and an arrangement for reducing a state transition time from a power saving state for a user equipment (18) in a communication network. The state transition time is reduced by retaining in the user equipment (18) one or more information parameter, such as the radio network temporary identifier for a high speed downlink shared channel (H-RNTI), when performing a state transition to said power saving state so as to enable a time reduction when said user equipment switches back from said power saving state.

Abstract: Methods and apparatus for improving the reporting of mobility information are disclosed. An example method, suitable for implementation in a mobile terminal such as an LTE UE, begins with the detecting of a transition from idle state to connected state. The mobile terminal subsequently transmits mobility information to the network in response to or in connection with the transition. The mobility information sent to the network includes one or more of several information elements or information types, including a list of recently visited cells, including information specifying a time-of-stay in each cell, or timestamp information that can be used to derive the mobile terminal's time in each cell. GPS-based speed information or other generic speed information may be included. Complementary methods for implementation in a base station and corresponding apparatus are also disclosed.

Abstract: The present solution relates to a method in a user equipment (310) for setting up an activation time of a cell change of the user equipment (310) from a serving cell (305) to a target cell (308) in a wireless communications network (300). The user equipment (310) receives (501) a timing offset from a network controller (315), calculates (502) a cell change activation time based on the timing offset and transmits (503) the calculated activation time to the network controller (315). Then, the user equipment (310) receives (504) an approval of the cell change from the network controller (315) and moves (505) from the serving cell (306) to the target cell (308) at the activation time if the approval has been received.

Abstract: This disclosure relates to radio link monitoring. More particularly, it relates to monitoring radio link failure between a user equipment (UE), which is configured for an extended (i.e. long) discontinuous reception (DRX) time period, and a radio network. A method performed by the UE may comprise retrieving 510 configuration data. Upon detection 520 of connectivity problems towards a radio cell, a parameter configuration of the retrieved configuration data may be applied 530 for monitoring the radio link failure between the UE and the radio network.

Abstract: A device receives information regarding allocation of an enhanced dedicated channel radio network temporary identifier (E-RNTI) to user equipment in a cell forward access channel (Cell_FACH) state, and receives information regarding a state change associated with the user equipment. The device determines that the E-RNTI can be released based on the state change, and provides, to another device, a request to release the E-RNTI in response to the state change and so that the E-RNTI can be used by other user equipment.

Abstract: Methods, nodes, computer programs, computer program products and a mobile network for adapting a mobile network are described. In such a method for adapting a mobile network (800), a terminal (802) is connected to a first access node (804) of the mobile network (800) via a first connection and to a second access node (808) via a second connection. The first access node (804) controls a data transmission for the terminal (802) and the second access node (808) assists in the data transmission for the terminal (802). The method comprises determining (7) whether a quality of at least one of the first connection and the second connection is degraded, acquiring (7) quality degradation information about the degradation of the quality of at least one of the first connection and the second connection based on the step of determining, and adapting (896, 8, 898, 899, 10, 11) the mobile network (800) based on the step of acquiring.

Abstract: A radio base station, a relay node and a respective method therein are provided for communicating data to a user equipment, the relay node being associated with the base station, wherein a downlink transmission to the user equipment is scheduled on subframe(s) available for the base station. The method in the radio base station comprises detecting that at least a part of the available subframes are not needed for downlink transmission to the relay node; and un-reserving at least one of the not needed subframes. The method further comprises transmitting, to the relay node, a release notification message notifying the relay node of the unreserved subframes for enabling the relay node to use the unreserved subframes for downlink transmission.

Abstract: A UE, a MeNB, a SeNB and respective methods performed thereby are provided. The UE, the MeNB, and the SeNB are operable in a wireless communication system, the wireless communication system being adapted to provide for dual connectivity between the SeNB and a UE, and between the UE and a MeNB. The method is performed for providing system information of the wireless communication system to the UE and for the UE to acquire the system information. The method performed by the UE comprises receiving (110), from the SeNB, a MIB of a cell of the SeNB; and acquiring (120) a System Frame Number, SFN, from the MIB.

Abstract: In a method for improving the transmission efficiency in a communication system with a layered protocol stack, data packets are processed on an upper protocol layer. Data packets are forwarded to a lower protocol layer for transmission and the transmission is performed with variable channel access delays. The upper protocol layer is notified by the lower protocol layer when a transmission is started to allow a synchronization of timers in the upper protocol layer. If a layer performs a scheduling of data packets for the transmission, a rescheduling is performed alternatively or in addition during a channel access delay. Devices and software programs embodying the invention are also described.

Abstract: The present invention relates to base stations, methods in a base station, terminals and methods in a terminal for supporting a handover. The invention further relates to computer programs for implementing, in the respective nodes of a wireless network, functionality for supporting a handover. According to one embodiment, a method in a source base station for supporting a handover of a terminal from the source base station to a target base station is provided. The method includes sending to an assisting base station a request for assisting the handover, and communicating handover control information between the terminal and the source base station via the assisting base station.

Abstract: According to the invention data in a number of logical downlink intended for one or more mobile terminals are received in a first mapping unit, where at least a first High Speed Radio Network Temporary identity is allocated to these logical downlink channels addressing a group of mobile terminals for allowing transmission of channel data for reception by mobile terminals. A mobile terminal then reads, from a Broadcast Control Channel, necessary information including a High Speed Radio Network Temporary identity allocated to at least one logical downlink channel, where at least said first identity exists among possible identities. It then listens to a high speed shared control channel for the read identity. In case it detects the identity, the terminal follows a scheduling command, receives data on a high-speed downlink shared channel and processes said data.

Abstract: Embodiments herein relate to a method performed in a wireless terminal (10) for managing or handling uplink, UL, data transmissions in a radio communications network (1), wherein the wireless terminal (10) is served by a first radio base station (12) and a second radio base station (13) providing dual connectivity to the wireless terminal (10) in the radio communications network (1). The wireless terminal (10) transmits a buffer status report, BSR, to the first and/or second radio base station when a trigger is being fulfilled as configured at the wireless terminal (10).

Abstract: Method and arrangement in a source radio network node for reducing the amount of user equipment related data forwarded to a target radio network node, when performing a handover of a user equipment. The method comprises determining that the user equipment is to perform a handover from the source radio network node to the target radio network node, increasing the polling frequency of polls sent to the user equipment, transmitting a poll to the user equipment, receiving a status message from the user equipment, as a response to the transmitted poll, dropping the data which, according to the received status message have been acknowledged by the user equipment, and forwarding the data which have not been acknowledged by the user equipment according to the received status message, to the target radio network node.

Abstract: A method in a network node is disclosed. The method comprises sending one or more packet data convergence protocol (PDCP) packet data units (PDUs) to a second network node on an internode interface, each of the one or more PDUs having an associated PDCP sequence number and an associated internode interface specific sequence number, the internode interface specific sequence numbers assigned by the network node. The method further comprises receiving feedback from the second network node.

Abstract: Method and arrangement in a user equipment for transmitting scheduling requests to a base station. The base station is adapted to serve the user equipment. The user equipment is configured to transmit scheduling requests to the base station only at certain predetermined scheduling request opportunities. The method comprises triggering a scheduling request transmission, transmitting a scheduling request to the base station at the next occurring scheduling request opportunity, starting a scheduling request prohibiting timer and prohibiting any further scheduling request retransmission at future scheduling request opportunities while the scheduling request prohibiting timer is running. Also, a corresponding method and arrangement in a base station is described.

Abstract: The present solution relates to a method in a user equipment (310) for setting up an activation time of a cell change of the user equipment (310) from a serving cell (305) to a target cell (308) in a wireless communications network (300). The user equipment (310) receives (501) a timing offset from a network controller (315), calculates (502) a cell change activation time based on the timing offset and transmits (503) the calculated activation time to the network controller (315). Then, the user equipment (310) receives (504) an approval of the cell change from the network controller (315) and moves (505) from the serving cell (306) to the target cell (308) at the activation time if the approval has been received.

Abstract: Methods and apparatus for improving the reporting of mobility information are disclosed. An example method, suitable for implementation in a mobile terminal such as an LTE UE, begins with the detecting (410) of a transition from idle state to connected state. The mobile terminal subsequently transmits (420) mobility information to the network in response to or in connection with the transition. The mobility information sent to the network includes one or more of several information elements or information types, including a list of recently visited cells, including information specifying a time-of-stay in each cell, or timestamp information that can be used to derive the UE's time in each cell. GPS-based speed information or other generic speed information may be included. Complementary methods for implementation in a base station and corresponding apparatus are also disclosed.

Abstract: Method and arrangement in a user equipment for transmitting scheduling requests to a base station. The base station is adapted to serve the user equipment. The user equipment is configured to transmit scheduling requests to the base station only at certain predetermined scheduling request opportunities. The method comprises triggering a scheduling request transmission, transmitting a scheduling request to the base station at the next occurring scheduling request opportunity, starting a scheduling request prohibiting timer and prohibiting any further scheduling request retransmission at future scheduling request opportunities while the scheduling request prohibiting timer is running. Also, a corresponding method and arrangement in a base station is described.

Abstract: Method and arrangement in a user equipment for transmitting scheduling requests to a base station. The base station is adapted to serve the user equipment. The user equipment is configured to transmit scheduling requests to the base station only at certain predetermined scheduling request opportunities. The method comprises triggering a scheduling request transmission, transmitting a scheduling request to the base station at the next occurring scheduling request opportunity, starting a scheduling request prohibiting timer and prohibiting any further scheduling request retransmission at future scheduling request opportunities while the scheduling request prohibiting timer is running. Also, a corresponding method and arrangement in a base station are described.