Abstract: In one embodiment, a method in a network node is provided. The network node is configured to use a first power level for transmitting data in subframes of a first type, and to use a second power level for transmitting data in subframes of a second type. The method comprises signaling (520) first and second information to a network entity. From the first information, a power offset for subframes of the first type is derivable. The first power offset represents a relation between a power level for transmitting reference signals and the first power level. From the second information, a power offset for subframes of the second type is derivable. The second power offset represents a relation between the power level for transmitting reference signals, and the second power level.

Abstract: A first User Equipment (UE), a second UE, a first Radio Network Node (RNN), and methods therein for controlling interference between transmissions in a first system and transmissions in a second system. The first system comprises the first UE and the first RNN serving the first UE. The second system comprises the second UE and a second RNN serving the second UE. The first system has a first priority in a first part of a shared spectrum and the second system has a second priority in the first part of the shared spectrum, wherein the first priority is higher than the second priority. The method in the first UE comprises transmitting a signal to a second RNN that is to perform a downlink transmission to the second UE, which signal is configured to control the transmission of the second RNN.

Abstract: Method and arrangement in a serving base station for determining a binary value of information data received from a user equipment, by using a supportive likelihood value received from a supporting base station. The user equipment transmits information data to be received both by the serving base station and the supporting base station base station. The method comprises: decoding information data bits received from the user equipment into a first likelihood value, without determining a binary value for each bit of the information data, a supportive likelihood value of the information data bits transmitted from the user equipment is received from the supporting base station, which supportive likelihood value is based on a decoding of the information data bits performed in the supporting base station. The first likelihood value of the decoded information bits is combined with the received supportive likelihood value of the decoded information bits.

Abstract: In one aspect of the disclosed teachings, associating a plurality of contention-based uplink grants with a range of uplink resource blocks allows one contention-based uplink grant message to signal the entire plurality of grants. As an example in the LTE context, the signaling load on the PDCCH is reduced by using a single contention-based uplink grant message to signal a plurality of contention-based uplink grants. The message indicates an allocated set of uplink resource blocks and the number of separate uplink resource grants represented by the set is known or signaled, such that user terminals recognize that separate subsets of uplink resource blocks within the set each correspond to a separate contention-based uplink grant. Information included in the contention-based uplink grant message, or otherwise signaled can be used to control the probability at which the user terminals attempt contention-based uplink transmissions and/or to control the MCS used for such transmissions.

Abstract: A method for uplink power control at a mobile station which is served by a base station of a communications network comprising a plurality of base stations is provided where the power spectrum density of the mobile station is adaptable based on the bandwidth scheduled to the mobile station. The suggested power spectrum adaptation is obtained by providing for a switch to an alternative power control mode which enables for transmit power boosting at the mobile station. The decision whether to apply the suggested power spectrum adaptation can be made at the base station which is serving the mobile station, or at a selected mobile station.

Abstract: A first and a second radio communication device and a respective method performed thereby for communicating between the first and the second radio communication device are provided. The method in the first radio communication device comprises transmitting (210), on an unlicensed frequency band, to at least the second radio communication device, an indication of a duration of a guard period, wherein an upcoming data transmission is to be performed to the second radio communication device after the expiration of the guard period. The method further comprises during the guard period, sending and/or receiving (220) information to/from at least one other radio communication device, the other communication device being the second radio communication device or a third communication device.

Abstract: In a multi-access system, an access selection principle is achieved by selecting a signal strength threshold level (130-133) based on a determined load level (ULOCAL) in a first access network. A new user in an area commonly covered by more than one access network attempts to allocate to the first access network if an experienced signal strength exceeds the signal strength threshold level (130-133). Communication utility can preferably be maximized or at least be taken into account by using suitable load level dependencies. By increasing the threshold when the load level approaches the capacity limit, a completely filled first access network is avoided. This gives an opportunity to let particularly well-suited users still have access to the first access network. At the same time, since the preferred access is decided before the actual access attempt, control signalling can be significantly reduced, even at very high traffic loads.

Abstract: Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.

Abstract: Systems and methods are disclosed for controlling ON/OFF operation of a Secondary Cell (SCell) in a cellular communications network. In some embodiments, the SCell is a License Assisted Access (LAA) SCell that operates in an unlicensed frequency band. In some embodiments, a method of operation of a network node in the cellular communications network to dynamically control ON/OFF operation of a SCell of the cellular communications network comprises measuring activity of other wireless systems on a channel utilized by a SCell while the SCell is in an OFF state, determining whether to transition the SCell to an ON state based on the activity of the other wireless systems measured on the channel, turning the SCell ON upon determining that the SCell is to be transitioned to the ON state, and keeping the SCell in the OFF state upon determining that the SCell is not to be transitioned to the ON state.

Abstract: Transmit power control methods and apparatus are disclosed. In several embodiments, a mobile terminal is configured to effectively ignore “UP” transmit power control commands in the event that the mobile terminal is operating in a power-limited state. In an exemplary method for controlling transmit power at a mobile terminal, a plurality of transmit power control commands are received. An accumulated power control value is adjusted in response to each transmit power control command that directs a negative adjustment in transmit power. However, the accumulated power control value is adjusted in response to a transmit power control command that directs a positive adjustment in transmit power only if the mobile terminal is not in a power-limited state. Transmit power settings for each transmission are calculated based on the accumulated power control value and the one or more radio link parameters.

Abstract: The present invention relates to a method and apparatus for requesting scheduling of resources to be used for uplink communication of data in a communications system. If the repeated transmission by a user equipment of scheduling requests on an uplink control channel is determined to be unsuccessful, a random access transmission on a random access channel is initiated as a fallback procedure.

Abstract: A method for controlling transmit power in a wireless communication system are disclosed. The method comprises determining a first transmit power of at least a first type of subframe which is higher than a maximum allowed average output power of the radio base station, and a second transmit power of at least a second type of subframe which is lower than the maximum allowed average output power. An average transmit power by which the radio base station transmitted an amount of subframes during a preceding time period is determined. Moreover, a maximum allowed power for a subsequent subframe based on the determined average transmit power and the maximum allowed average output power is determined. Finally, at least one type of subframe to be allowed for the subsequent subframe based on the determined maximum allowed power for the subsequent subframe and at least the first and second transmit power is determined.

Abstract: Methods and apparatuses are provided for mitigating interference in a Wireless Local Access Network or WLAN that may be caused by a radio node. Signal measurements are monitored at frequencies corresponding to one or more WLAN channels in one or more frequency bands. It is determined, based on the signal measurements at the frequencies, whether there are any channels among possible primary and secondary channel pairings of the WLAN channels that are being used by the WLAN as secondary channels. Spectrum usage by the radio node is controlled in dependence on the determination.

Abstract: A method and an arrangement in a first radio network node for determining a channel quality offset for a radio channel for sending data from the first radio network node to a user equipment are provided. The first radio network node receives from the user equipment channel quality information for the radio channel. The first radio network node estimates resource utilization and signal-to-noise-ratio for the user equipment. The first radio network node determines the channel quality offset based on the received channel quality information, the estimated resource utilization and the estimated signal-to-noise-ratio.

Abstract: According to one aspect of the present disclosure, a method is disclosed in a user equipment (UE) for performing downlink measurements on a plurality of cells according to a received measurement configuration. The UE receives measurement configuration information from a radio base station supporting a serving cell of a wireless communications network, the measurement configuration information including an indication of a variably sized measurement bandwidth over which measurements are to be performed on the serving cell and one or more neighbor cells. The UE performs measurements on each of the serving cell and the one or more neighbor cells over the measurement bandwidth, and reports the measurements to the network.

Abstract: The proposed technology involves a mechanism for selecting, for a user, access points for coordinated multipoint (COMP) uplink reception. The method comprises obtaining, for each of a number of candidate access points, at least one uplink measurement result. The method also involves combining candidate access points to form at least two different sets of access points from the candidate access points. The method comprises estimating, for each one of the at least two different sets of access points, an uplink quality measure based on the uplink measurement results of the considered set of access points, and determining, for each one of the at least two different sets of access points, a measure representative of the number of transmission opportunities available to the user for the considered set of access points over a given period of time.

Abstract: The present disclosure relates to methods and arrangements in a telecommunication system for network-controlled bandwidth for neighbor cell measurements. An appropriate network unit in the serving cell signals measurement bandwidth values to the UE which uses the signal values to perform one or more downlink measurements on the serving as well as the neighbor cells.

Abstract: A method for controlling transmit power in a wireless communication system are disclosed. The method comprises determining a first transmit power of at least a first type of subframe which is higher than a maximum allowed average output power of the radio base station, and a second transmit power of at least a second type of subframe which is lower than the maximum allowed average output power. An average transmit power by which the radio base station transmitted an amount of subframes during a preceding time period is determined. Moreover, a maximum allowed power for a subsequent subframe based on the determined average transmit power and the maximum allowed average output power is determined. Finally, at least one type of subframe to be allowed for the subsequent subframe based on the determined maximum allowed power for the subsequent subframe and at least the first and second transmit power is determined.

Abstract: A method in a wireless network containing a first node and an adjacent second node for determining an uplink received power target value of the second node to be used by a user equipment which is to be served by the second node includes establishing the uplink received power target value of the first node. The method also includes obtaining the downlink power capacity of the first node and obtaining the downlink power capacity of the second node. Additionally, the method includes calculating the difference in downlink power capacity between the first node and the second node and determining the uplink received power target value of the second node based on the calculated difference in downlink power capacity between the nodes and the established uplink received power target value of the first node.

Abstract: Methods and arrangements in a telecommunication network for intercell interference coordination. The telecommunication network comprises a first base station, acting as serving base station for a mobile station, and a second base station. The method comprises determining that transmission interference to the mobile station is to be limited. The method also comprises triggering the mobile station to send a signal on a radio resource, which signal is to be received by the second base station, enabling the second base station to select a transmission parameter that limits interference for the mobile station.