Abstract: A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams. The method comprises initiating a mobility procedure, identifying interfering signals transmitted by one or more interfering beams, decreasing a transmit power level of the identified interfering signals, and executing at least part of the mobility procedure while the identified interfering signals use the decreased transmit power level.

Abstract: A method (800) comprises obtaining (703, 804) a measurement configuration, the measurement configuration defining one or more beam groups (405A-C) and a report triggering configuration, wherein: each of the one or more beam groups (405) comprises one or more beams; and the report triggering configuration defines one or more conditions that trigger a measurement report by the wireless device. The method comprises performing (808) one or more measurements on the associated reference signal of each beam of the one or more beams included in each of the one or more beam groups, and filtering (812) the performed one or more measurements to obtain a filtered measurement value for each of the one or more beam groups. The method comprises determining (816), based on at least one filtered measurement value, whether at least one of the one or more conditions that trigger a measurement report by the wireless device are satisfied.

Abstract: Embodiments of the present disclosure relate to methods and network nodes and user equipment for measurement reporting. In example embodiments, a method implemented in a user equipment is provided. According to the method, the user equipment detects a plurality of beams from one or more of the UE's neighboring nodes, forms one measurement result of a group based on beam grouping information, and then send measurement report to the UE's serving node, including the measurement result of the group is included in the measurement report. According to the present disclosure, more neighboring nodes can be reported by the UE in a measurement report.

Abstract: According to a first aspect of embodiments herein, the object is achieved by a method performed by a User Equipment (UE) for monitoring a beam transmitted by a base station in a radio communications network. The base station is serving the UE. The UE monitors (1202) a reference signal related to the beam, from the base station. Each time a quality of the reference signal is below a first threshold, the UE generates (1203) an Out-Of-Synchronization (OOS) event When the number of OOS events reaches an OOS Beam Failure Detection (BFD) threshold, the UE triggers (1205) a beam recovery preparation procedure, and when the number of OOS events reaches an OOS Radio Link Monitoring (RLM), threshold, the UE starts (1206a) an RLF timer.

Abstract: A method is performed by a wireless node in a wireless communication network for receiving a reference signal. The method includes collecting a first set of samples of the received signal in time domain, transforming the first set of samples into frequency domain, forming a plurality of hypotheses including a set of hypotheses for time offset of the received signal and/or a set of hypotheses for frequency offset of the received signal, correlating the frequency domain samples of the received signal with at least a subset of the plurality of hypotheses, and selecting a hypothesis based on the correlation, wherein the selected hypothesis corresponds to a synchronisation of the received signal such that the synchronisation is achieved. A wireless communication device, a network node, and computer programs for implementing the method are also described.

Abstract: Disclosed is methods, devices and computer programs for controlling an uplink measurement procedure. There is in particular disclosed a method performed by a source access network node (1) in a wireless communication network for controlling an uplink measurement procedure for signals transmitted from a User Equipment (2), UE (2), to at least one candidate access network node (3). The method comprises providing (S1) a representation of first uplink resource to the UE (2) and the at least one candidate access network node (3), the first uplink resource to be used for transmission of a signal by the UE (2) for the at least one candidate access network node (3) to perform measurements on. The method also comprises the step of providing (S2), based on an indication that no measurement was performed by a specific candidate access network node (3) on a signal transmitted using the uplink resource, a representation of a second uplink resource to the UE (2) and to the specific candidate access network node (3).

Abstract: A user equipment, UE, performs measurements based on a plurality of RLM sources received in beam-formed downlink signals, where the measurements indicate a quality of a given cell or beam. The plurality of sources comprises two or more of: first reference signals (RSs), second RSs of a different type than the first RSs, and one or more physical channel quality indicators obtained from non-reference-signal data in the beam-formed downlink signals. For each of the plurality of sources used to perform measurements, the UE determines whether a measurement for the respective source indicates an out-of-sync event in response to the measurement being below a first threshold. The UE then performs an RLM action based on determined occurrences of out-of-sync events.

Abstract: A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams. The method comprises identifying one or more candidate beams, causing transmission of a reference signal on each of the candidate beams, causing reservation of an uplink resource of at least one of the candidate beams (wherein the uplink resources are for conveying a report from the wireless communication device, and wherein the report is indicative of a result of measurements of the reference signals), and causing the communication with the wireless communication device to use a target beam (wherein one of the candidate beams is selected as the target beam based on the conveyed report).

Abstract: Method and apparatus in a wireless communication network (100) for establishing active mode beam to idle mode cells neighbour relations are disclosed. A first network node (111) and other network nodes, a second and a third network nodes (112, 113) operate in the wireless communication network (100). The first network node (111) is a serving network node for the user equipment (130) with the active mode beam, and the idle mode cells are synchronization signal broadcast areas provided by the other network nodes (112, 113). The first network node (111) obtains information on synchronization signals transmitted from the other network nodes and stores information on active mode beam to idle mode cell relations, wherein the active mode beam is the beam serving the user equipment (130) when a new synchronization signal is detected, and the idle mode cell is the cell with the synchronization signal broadcast area provided by the network node transmitting the detected synchronization signal.

Abstract: An access node configures a user equipment, UE, to perform mobility management measurements using at least a first subset of beam-formed reference signals and to perform radio link monitoring, RLM, using at least some of the first subset of beam-formed reference signals used for the mobility management measurements. The access node transmits, in a first downlink signal having a series of subframes, a beam-formed reference signal in each of a plurality of subframes, where the beam-formed reference signals are transmitted in fewer than all of the subframes of the downlink signal. The UE receives, in the beam-formed downlink signal, the beam-formed reference signal in each of the plurality of subframes. The UE performs mobility management measurements using at least a first subset of the received beam-formed reference signals and performs RLM using at least some of the first subset of beam-formed reference signals used for the mobility management measurements.

Abstract: There is provided a signal distribution network for an antenna arrangement comprising signal interfaces and antenna elements. The signal distribution network comprises a first signal processing module operatively connected between antenna elements and K of the signal interfaces. The signal distribution network comprises a second signal processing module operatively connected between antenna elements and M signal interfaces other than those operatively connected to the first signal processing module. Components of the second signal processing module have lower sampling rate than components of the first signal processing module. The signal distribution network is configured for simultaneous signalling between the antenna elements and the first signal processing module and between the antenna elements and the second signal processing module.

Abstract: A method for a network node of a cellular communication network is disclosed. The network node and at least some other network nodes of the cellular communication network are each adapted to support a plurality of beams of a signal beam-forming scheme and to communicate with a wireless communication device using at least one of the plurality of beams. The method comprises initiating a mobility procedure, identifying interfering signals transmitted by one or more interfering beams, decreasing a transmit power level of the identified interfering signals, and executing at least part of the mobility procedure while the identified interfering signals use the decreased transmit power level.

Abstract: According to an aspect, an access node transmits, in a downlink signal having a series of subframes, a beam-formed reference signal in each of a plurality of subframes, where the beam-formed reference signals are received in fewer than all of the subframes of the downlink signal and are for use by one or more user equipments, UEs, in performing mobility management. The access node also transmits, for a wireless device, a UE-specific RS, which may be different than the beam-formed reference signals, for use by a UE in performing RLM. The UE receives the beam-formed reference signals and the UE-specific RS. The UE then performs mobility management measurements using the beam-formed reference signals and performs RLM using the UE-specific RS.

Abstract: The present disclosure provides a method in an access device for facilitating Discontinuous Reception (DRX) at a terminal device. The method comprises: transmitting a signal to the terminal device before or within an on-duration of DRX, for front-end and/or synchronization adjustment at the terminal device.

Abstract: Embodiments herein relate to a method performed by a radio network node (12) for facilitating beam selection for wireless devices in a wireless communications network. The radio network node obtains a first parameter indicating a mapping between an uplink signal, US, sequence and a beam-formed reference signal, RS, which mapping is for two or more wireless devices that are configured to perform measurements on beam-formed reference signals and to use US sequences to report selected beams, and a second parameter distinguishing the US sequence being reported from one wireless device from the US sequence being reported from one or more other wireless devices. The radio network node further receives an indication of the US sequence transmitted from one of the two or more wireless devices (10); and identifies the beam for the wireless device based on the received indication and the first and second parameters.

Abstract: The disclosure relates to methods, devices, and computer programs in mobile communications. More specifically, the proposed technique relates to measuring link quality using signals transmitted by the network for use by wireless devices. In particular the disclosure relates to enabling efficient measurements of such link quality measurement signals. This object is achieved by a method for handling link quality measurements, the method being performed by a wireless device in a wireless communication network. The method comprises receiving, from a network node in the wireless communication network, measurement parameters defining a triggering link quality measurement signal, detecting the triggering link quality measurement signal, and performing, in response to the detection of the triggering link quality measurement signal, measurements on other link quality measurement signals.

Abstract: There is provided a method for handling mobility synchronization measurements. The method is performed by a wireless device. The method comprises receiving an indication to perform mobility measurements on a set of transmission beams associated with a unique identity. The method comprises checking if the unique identity has previously been stored by the wireless device. The method comprises, if the unique identity has not previously been stored by the wireless device, performing mobility measurements on the set of transmission beams to determine synchronization information of the set of transmission beams. The method comprises storing the unique identity and the synchronization information of the mobility measurements.

Abstract: Embodiments herein relate to a method performed by a second network node for handling neighbour relationships between radio network nodes in a wireless communication network. The second network node initiates a neighbour relationship establishment process in the wireless communication network by transmitting an indication to a second radio network node or a first network node. The indication indicates the second radio network node to transmit an identifier of a reference signal handler associated with a reference signal of the second radio network node along with a transmission of the reference signal.

Abstract: A UE (22) in handover consideration transmits an uplink measurement signal comprising repetitions of a predetermined identity code. Network access nodes (18, 20) that are candidate handover target nodes receive the signal and use it for channel quality and timing offset measurements. To ensure that a predetermined minimum number of symbols are received without interference from user traffic, an uplink measurement signal reception window is defined for each candidate node (18, 20). The timing of the reception window is based on a total timing misalignment between the UE (22) and the candidate node. In some embodiments, the duration of the reception window is based on an uncertainty in the timing misalignment estimate. Reception of user data is precluded during the uplink measurement signal reception window (on the allocated subband, if the full uplink carrier is not used). The UE transmits the uplink measurement signal in an uplink measurement signal transmission window.

Abstract: A method for random access for beam failure recovery. In the method, specific random access configuration for the beam failure recovery is received. In the event of a beam failure, a random access procedure is performed according to the specific random access configuration.