Abstract: A power converter including a transformer (Tr) with a primary and a secondary, and a capacitor (Cr) and an inductor (Lr) serially connected with the primary of the transformer. The capacitor, the inductor and a magnetizing inductor (Lm) of the transformer form an LLC resonant circuit. The power converter further including a first current sensor (CT1) and a second current sensor (CT2). The first current sensor including the inductor and is configured to sense, via the inductor, a current passing through the primary of the transformer. The second current sensor including the primary and is configured to sense, via the primary, a current passing through the magnetizing inductor of the transformer. A current passing through the secondary is determined from a difference obtained based on the sensed current passing through the primary of the transformer and the sensed current passing through the magnetizing inductor.

Abstract: A network sync signal with unknown frequency location is detected by sampling the received signal over a band of interest in frequency, and over the repetition period of the sync signal in time. The signal is converted to the frequency domain. Sub-bands of the frequency-domain signal, corresponding to different possible sync locations and frequency offsets, are extracted and converted to the time domain, where the sync signal is searched over the reception window length using time-domain matched filtering.

Abstract: A node (100, 200) of a cellular network obtains reports of measurements for a given cell (20) of the cellular network. The measurements are performed by one or more communication devices (10) associated with a surrounding cell (21) of the given cell. Each measurement indicates a received signal strength of a signal (RS) from the given cell (20). On the basis of the received signal strengths, the node (100) determines a level of interference generated by the given cell (20) with respect to the surrounding cell (21).

Abstract: Handling of a paging extension in a wireless communication network. A terminal device in the wireless communication network receives, from a base station in the wireless communication network, a message including an indication of a paging extension for the terminal device. The terminal device is associated with a first coverage class. Based on the message, the terminal device determines a second coverage class of a downlink transmission from the base station to a further terminal device. Then, the terminal device determines a target paging group for the paging extension based on the first coverage class and the second coverage class.

Abstract: In one aspect, a wireless device receives a first data transmission from a base station in a first subframe interval and transmits HARQ feedback and/or CSI to the base station in a subsequent subframe interval, within a duration that is less than a maximum transmission duration that is possible within the subsequent subframe interval. In another aspect, a base station transmits a first data transmission to a wireless device in a first subframe interval and receives HARQ feedback and/or CSI from the wireless device in a subsequent subframe interval, within a duration that is less than a maximum transmission duration that is possible within the subsequent subframe interval.

Abstract: Teachings herein improve the choice of carrier placement in a wireless communication network by de-coupling the carrier raster from the subcarrier grid. Recognizing that the placement of a carrier by its center frequency is an artificial construct, it is re-defined and the carrier placement is instead defined by the carrier position, which is on a carrier raster (e.g., 100 kHz), but in general does not have to be the center of the carrier. Second, a subcarrier grid is defined that is common for all RF carriers and spanning a range of frequencies, at least within an operating band, and provides orthogonality for subcarriers within all RF carriers regardless of carrier position. Third, a unique mapping from the carrier position on the RF carrier raster to a subcarrier reference position, e.g., the DC subcarrier, is defined, which in turn identifies the exact position of the RF carrier on the subcarrier grid.

Abstract: A method for managing channel state information in a wireless communication system comprises obtaining a base set of channel state information of a channel between a first node and a second node based on at least one transmission signal. A dedicated reference signal, specific for a limited set of nodes comprising the second node is transmitted within a channel subspace selected in dependence of the obtained base set of channel state information. At least one common channel state information reference signal specific for an intended coverage area of the first node is transmitted. The common channel state information reference signal allows for obtaining a fall-back set of channel state information of a channel between the first node and the second node. The fall-back set of channel state information represents coarser granularity, in spatial dimensions, than the base set of channel state information.

Abstract: Independent power-control procedures per beam-pair link (BPL). In one embodiment, such a power-control procedure comprises: 1) an open-loop part based on the estimated DL path loss for the active and back-up (or “non-active”) BPLs in the UE and 2) a closed-loop part where the UL power-control adjustment commands are transmitted from the network and accumulated in the UE independently per active BPL. The UL transmit power is determined from the power-control procedure associated with the active BPL scheduled for transmission.

Abstract: A method (20) performed by a device (1) for protecting data is provided. The method (20) comprises inputting (21), to a Physically Unclonable Function, PUF, (3), of the device (1), a challenge; obtaining (22), from the PUF (3), a response; and protecting (23) the data by using the response. A device (1), a method in an encryption unit, computer program and computer program product are also provided.

Abstract: A method and device for two-step random accessing. The method includes transmitting a random access preamble and a data block on a time-frequency resource to a network device; and receiving a response message for the random accessing from the network device. The data block is encoded with an orthogonal cover code and/or a cyclic shift, and the data block comprises data information and a reference signal associated with the data information. Therefore, resource efficiency is improved significantly for an associated data message following a random access preamble with endurable minor performance degradation.

Abstract: A method for operating a User Equipment (UE) is disclosed, wherein the UE is served by a source first network function in a first network and requires to register with a target second network function in a second network. The method comprises generating a registration request with integrity protection for at least a part of the registration request (1200), and sending an integrity protected part of the registration request to the source first network function via the target second network function (1202). Also disclosed are methods of operating first and second network functions.

Abstract: It is herein e.g. disclosed a method performed by a radio network node for handling communication of a wireless device in a wireless communication network. The radio network node determines to release the wireless device from a first state, wherein the wireless device is with an active connection for communicating data, to a second state. The radio network node further transmits to the wireless device, a release message to suspend or release the wireless device from the first state to the second state, and along with the release message, an indication of one or more resources for UL transmissions for the wireless device.

Abstract: A method of a network node adapted to transmit a wake-up signal for waking up one or more wireless communication receivers is disclosed, as well as a method for the wireless communication receiver, such network node and wireless communication receiver, and computer programs for implementing the methods. Each wireless communication receiver is comprised in a wireless communication device and is associated with a wake-up radio adapted to wake up the wireless communication receiver in response to detecting the wake-up signal. An indication of a maximum frequency error of the wake-up radio associated with the wireless communication receiver is acquired such that a non-data transmission bandwidth for exclusive use by the wake-up signal can be determined. The wake-up signal is transmitted over a wake-up signal transmission frequency interval having a wake-up signal transmission bandwidth, wherein the wake-up signal transmission bandwidth is less than, or equal to, the non-data transmission bandwidth.

Abstract: A BM-SC, and a method therein for transmitting data file by broadcast session to at least one UE, in a radio communication system; and a UE and a method therein for receiving a broadcast session of transmission of a data file from a BM-SC are provided. The method in the BM-SC comprises determining to transmit the data file to the at least one UE, and determining a FEC redundancy level to use for the transmission. The method also comprises transmitting, to the at least one UE, the data file using the determined FEC redundancy level and an indication of the determined FEC redundancy level.

Abstract: A method performed by a first wireless node for enabling relaying by a relaying wireless node of data intended for reception by a second wireless node. The first wireless node, second wireless node and relaying wireless node each operate in a wireless communications network. The first wireless node transmits a first payload data to the relaying wireless node. The first payload data comprises a second payload data intended for the second wireless node. The first payload data further comprises an indicator, which indicator indicates to the relaying wireless node how to relay the second payload data. The indicator comprises parameters related to radio transmission of the second payload data.

Abstract: Embodiments herein relate to a method performed by a first transmission point (12) out of at least two transmission points for estimating a channel quality gain of a wireless device (10) served by the first transmission point (12) in a wireless communication network (1). The first transmission point (12) coordinates transmissions with a second transmission point (13) out of the at least two transmission points in the wireless communication network (1). The first transmission point estimates the channel quality gain based on whether a first cell specific reference signal, CRS, configuration of the first transmission point (12) is using radio resources for a first CRS that are colliding or not with radio resources used for a second CRS of a second CRS configuration of the second transmission point (13) in the wireless communication network (1), and a utilization of frequency resources by the second transmission point (13).

Abstract: A method (10) of bi-directional optical communication, the method comprising: generating (12) a first optical communication signal for transmission in one direction through an optical fibre, generating the first optical communication signal comprising: receiving information for transmission and generating (14) a baseband signal comprising a representation of the information; performing digital upconversion (16) of the baseband signal to form an upconverted baseband signal; performing optical modulation (18) of an optical carrier signal with the upconverted baseband signal; and restricting an optical spectrum of the first optical communication signal to a first portion of an optical channel frequency slot by performing one of digital filtering (16) in addition to digital upconversion and optical filtering (36) after optical modulation; and receiving (20) a second optical communication signal transmitted in an opposite direction through the optical fibre, the second optical communication signal having an optica

Abstract: A client provides a hash value that provides for a time-stamp for data upon verification, by deriving a one-time signing key, OTSK, of a OTSK hash chain by applying a time fraction hash tree splitting a time slot corresponding to an index into time fractions such that the time slot is divided into fractions according to the number of leafs of the time fraction hash tree, forming a signing request by applying the OTSK for the fraction for the data to calculate hash values, and transmitting the signing request comprising the hash values to a server of a signing authority. The server receives the signing request from the client, derives a time stamp for the data including a hash path of the time fraction hash tree as a sub-tree of hash tree of the OTSK, and transmits the time stamp for the data.

Abstract: There are described methods, devices and systems for bundling of HARQ feedback for a carrier aggregation. Bundling is performed based on one of: Frequency domain bundling; Differentiated bundling for different frequency bands (e.g. differentiated bundling for licensed and unlicensed carriers); differentiated bundling for primary carrier and secondary carriers; and DL CC group specific bundling configuration.

Abstract: A method performed by a transmitting communication device for handling communication for a wireless device in a communication network. The communication network comprises one or more networks comprising partitioned sets of functionalities wherein a first set of functionalities belongs to a first network slice supporting the wireless device, and which first set of functionalities is separated from another set of functionalities out of a total set of functionalities in the one or more networks. The transmitting communication device transmits a Non Access Stratum Protocol Data Unit (NAS PDU) and an indication over a signalling connection carrying NAS PDUs, to a receiving communication device, which indication indicates that the NAS PDU is associated with the first network slice.