Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.

Abstract: In a multi-standard base station (BS) site, a first (BS) module operates in multi-antenna transmission mode according to a first radio access technology (RAT) by means of multiple transmitter branches. The first BS module determines phase/time compensation information based on UE feedback information representative of precoding matrix index, PMI. The multi-standard BS site performs, for operation according to the first RAT, a first compensation for a relative phase/time error between at least two of the transmitter branches based on the phase/time compensation information. A second BS module operates for transmission according to a second RAT by means of at least two of the multiple transmitter branches. The multi-standard BS site performs, for operation according to the second RAT, a second compensation for a relative phase/time error between at least two of the transmitter branches based on the phase/time compensation information from the first BS module.

Abstract: An transmitter arrangement and a method therein are provided for linearization of an active antenna array. The active antenna array comprises a plurality of antenna elements, which are associated with a plurality of power amplifiers. The active antenna array is further associated with a precoder having a number of input and output ports. The method comprises obtaining a first signal provided to the antenna array via a first input port of the precoder. The method further comprises adapting a pre-distorting linearizer connected to the first input port based on the first signal and on feedback from the plurality of antenna elements, resulting from the propagation of the first signal via the precoder, and via the plurality of power amplifiers. Embodiments are also provided for adapting a pre-distorting linearizer based on a plurality of input signals and feedback from the plurality of antenna elements.

Abstract: Method and an apparatus for application of distortion shaping when using Peak-to-Average Ratio (PAR) reduction. The apparatus obtains an input signal. The apparatus applies, on the input signal, the PAR reduction and the distortion shaping to form an output signal. A bandwidth associated with the distortion shaping covers multiple channel bandwidths comprised in the input signal, which multiple channel bandwidths are associated with one or more Radio Access Technologies (RATs). Embodiments herein facilitate the distortion shaping and applicability of PAR reduction, in particular in case one of the RATs is Global System for Mobile Communications (GSM) or similar and/or the input signal is associated with radio communications systems that support multiple RATs.

Abstract: Disclosed are methods as well as wireless devices and radio network nodes for radio resource management (RRM) in inter-operator time-sharing of a frequency spectrum Fs. In one example embodiment, the same frequency spectrum Fs is allocated to each of a plurality of operators during different time periods such that the same frequency spectrum is shared among all of the plurality of operators.

Abstract: The present invention relates to a method implemented by a wireless device in a wireless communication system, for adjusting a maximum output power level of the wireless device. The method comprises obtaining an indication indicating a current level of criticality in the system in which a network node serving the wireless device is operating, and adjusting the maximum output power level based on the current level of criticality indicated by the obtained indication.

Abstract: In a multi-standard base station site, a first base station module is configured to operate in multi-antenna transmission mode according to a first radio access technology by means of multiple transmitter branches. The first base station module is also configured to determine phase/time compensation information based on UE feedback information representative of precoding matrix index, PMI. The multi-standard base station site is configured to perform, for operation according to the first radio access technology, a first compensation for a relative phase/time error between at least two of the transmitter branches based on the phase/time compensation information. A second base station module is configured to operate for transmission according to a second radio access technology by means of at least two of the multiple transmitter branches.

Abstract: The invention provides a method for processing signals in a radio transmission apparatus (60) and a radio transmission apparatus (60) comprising a plurality of radio transmitters (61, 62), wherein clipping is applied to a signal in at least one of the plurality of radio transmitters, wherein the amount of clipping or/and a clipping threshold is adjusted individually for each of the plurality of radio transmitters.

Abstract: A method for selecting carrier aggregation (CA) configurations includes determining whether a first wireless device is operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band. If the first wireless device is not operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band, a first CA configuration is selected for a second wireless device. If the first wireless device is operating or expected to operate using a single carrier configuration on a cell associated with a first frequency band, a second CA configuration that is more restrictive than the first CA configuration is selected for the second wireless device. An identifier of the selected one of the first CA configuration or the second configuration is transmitted to the second wireless device.

Abstract: The present invention relates to a method implemented by a wireless device in a wireless communication system, for adjusting a maximum output power level of the wireless device. The method comprises obtaining an indication indicating a current level of criticality in the system in which a network node serving the wireless device is operating, and adjusting the maximum output power level based on the current level of criticality indicated by the obtained indication.

Abstract: Method and an apparatus for application of distortion shaping when using Peak-to-Average Ratio (PAR) reduction, The apparatus obtains an input signal. The apparatus applies, on the input signal, the PAR reduction and the distortion shaping to form an output signal. A bandwidth associated with the distortion shaping covers multiple channel bandwidths comprised in the input signal, which multiple channel bandwidths are associated with one or more Radio Access Technologies (RATs). Embodiments herein facilitate the distortion shaping and applicability of PAR reduction, in particular in case one of the RATs is Global System for Mobile Communications (GSM) or similar and/or the input signal is associated with radio communications systems that support multiple RATs.

Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.

Abstract: The present invention relates to a method implemented by a wireless device in a wireless communication system, for adjusting a maximum output power level of the wireless device. The method comprises obtaining (310) an indication indicating a current level of criticality in the system in which a network node serving the wireless device is operating, and adjusting (320) the maximum output power level based on the current level of criticality indicated by the obtained indication.

Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.

Abstract: The present invention relates to a method and apparatus for testing mobile terminals in an OFDMA system, in which all or part of available downlink radio resources in a cell are transmitted. A processing unit in a test apparatus splits a set of contiguous resource blocks into separate contiguous portions. A first contiguous portion of the set of resource blocks is allocated to users of a first type, and a second contiguous portion of the set of resource blocks is allocated to users of a second type. A transmitter in the test apparatus transmits test signals to the users of the first type and the second type using the at least one contiguous set of resource blocks.

Abstract: A method in a Multi-Standard Radio (MSR) network node, a MSR network node, a method in a network node, and a network node facilitate handling of MSR network node information in a wireless communications system/network. Mechanisms for network operation of a wireless communications system/network include one or more MSR Base Stations (BSs). The MSR network node is configured to handle multiple Radio Access Technologies (RATs), generate a message comprising an MSR identifier identifying the MSR network node and/or MSR network node configuration data, and send the generated message to another network node for use in network operation. The generated message may be generated and sent upon detecting an initiating event.

Abstract: A method in a second network node (13,23) (eNodeB,BTS) for transmitting signals to and receiving signals from a user equipment (10) in a cellular radio system. The second network node (2nd eNodeB, BTS) signals (sends, transmits) an indicator to a first network node, i.e. RNC or first EnodeB or BTS (12,22, 15) in the cellular radio system, which indicator indicates an impact of an intermodulation (passive intermodulation, PIM, product) caused by a transmission from a transmitter in the second network node (second eNodeB or BTS) (13,23) on a receiver in the second network node (second EnodeB or BTS) (13,23).

Abstract: The invention provides a method for processing signals in a radio transmission apparatus (60) and a radio transmission apparatus (60) comprising a plurality of radio transmitters (61, 62), wherein clipping is applied to a signal in at least one of the plurality of radio transmitters, wherein the amount of clipping or/and a clipping threshold is adjusted individually for each of the plurality of radio transmitters.

Abstract: The invention provides a method for processing signals in a radio transmission apparatus (60) and a radio transmission apparatus (60) comprising a plurality of radio transmitters (61, 62), wherein clipping is applied to a signal in at least one of the plurality of radio transmitters, wherein the amount of clipping or/and a clipping threshold is adjusted individually for each of the plurality of radio transmitters.

Abstract: Disclosed are methods as well as wireless devices and radio network nodes for radio resource management (RRM) in inter-operator time-sharing of a frequency spectrum Fs. In one example embodiment, the same frequency spectrum Fs is allocated to each of a plurality of operators during different time periods such that the same frequency spectrum is shared among all of the plurality of operators.