Abstract: Systems and methods are disclosed for triggering a long range extension mode of operation for a wireless device in a cellular communications network. In one preferred embodiment, the wireless device is a Machine Type Communication (MTC) device. In one embodiment, a node in the cellular communications network determines that the wireless device is to operate in the long range extension mode if there is difficulty in establishing communication between the wireless device and the cellular communications network. If the wireless device is to operate in the long range extension mode, the node activates one or more long range extension mechanisms with respect to the wireless device such that the wireless device operates in the long range extension mode. In this manner, the long range extension mode is selectively triggered for the wireless device.

Abstract: The present disclosure relates to a method used in a User Equipment (UE) for reporting Hybrid Automatic Repeat Request (HARQ) acknowledgement (ACK)/non-acknowledgement (NACK) for Physical Downlink Shared Channels (PDSCHs) in dynamic time division duplex (TDD) configurations. In the method, a plurality of PDSCHs are received in DownLink (DL) subframes associated with an UpLink (UL) subframe and indicated by a DL reference TDD configuration. The DL subframes are divided into a first subset of DL subframes and a second subset of DL subframes. The first subset of DL subframes is also indicated by an UL reference TDD configuration. A first set of Physical Uplink Control Channel (PUCCH) resource indices are assigned based on resources used in transmission of Physical Downlink Control Channels (PDCCHs) corresponding to the PDSCHs received in the DL subframes of the first subset of DL subframes.

Abstract: There is provided mechanisms for for providing location information in a communications network. A method is performed by a first device. The first device supports positioning of other devices in the communications network. The method comprises acquiring positioning reference signal configuration from a radio network node in the communications network. The method comprises acquiring location information from a local positioning entity. The method comprises providing the location information to at least one of a radio network node and a second device in the communications network. The method comprises transmitting a positioning reference signal according to the positioning reference signal configuration.

Abstract: It is provided a method for reducing bit rate requirement over an uplink fronthaul link. The method is performed in a fronthaul transmitter of a radio network node and comprises the steps of: determining a group of frequency-domain resource elements having been received over a wireless channel (40); estimating channel information (42); reducing a number of bits for representing the respective frequency-domain resource element, to thereby obtain a modified resource element (44); transmitting the modified resource elements of the group over the fronthaul link to a fronthaul receiver (46); and transmitting compression metadata (48), indicating how the reduction was performed, over the fronthaul link to the fronthaul receiver which performs the steps of receiving the modified resource elements (50), receiving the compression metadata (52) and expanding the resource elements to increase the number of bits for representing the frequency-domain resource elements (54).

Abstract: There is provided provision of timing information of a first timing information source using timing information of a second timing information source to a wireless device. A network node determines that second timing information from the second timing information source is available and that timing information from the first timing information source is derivable from the second timing information. The network node instructs the wireless device to use the second timing information as a source for deriving first timing information of the first timing information source.

Abstract: An electromagnetic brake system for a metal-making process. The electromagnetic brake system includes a two-level magnetic structure, in particular an upper magnetic core structure configured to be mounted to an upper portion of a mold and a lower magnetic core structure configured to be mounted to a lower portion of a mold. Lateral coils on the upper magnetic structure are configured to be controlled to generate a first magnetic field in a first field direction and inner coils are configured to be controlled to generate a second magnetic field in a second field direction, simultaneously with the first magnetic field. The lower magnetic core structure has lower coils which are configured to be controlled to generate a third magnetic field in the first direction simultaneously as the lateral coils and the inner coils generate their fields.

Abstract: Systems and methods are disclosed for estimating one or more channel properties of a downlink from a cellular communications network based on quasi co-located antenna ports with respect to the one or more channel properties. In one embodiment, a user equipment receives a downlink subframe including a downlink control channel from the cellular communications network. The user equipment estimates one or more large-scale channel properties for an antenna port of interest in the downlink control channel based on a subset of reference signals that correspond to antenna ports in the cellular communications network that are quasi co-located with the antenna port of interest with respect to the one or more large-scale channel properties. As a result of using the quasi co-located antenna ports, estimation of the one or more large-scale channel properties is substantially improved.

Abstract: A receiver apparatus receives a terminal-specific demodulation reference signal having a rank k and estimates an effective multi-layer channel response, using the received terminal-specific demodulation reference signal. The receiver demodulates first data symbols from first time-frequency resource elements, using the estimate of the effective multi-layer channel response and using a first symbols-to-virtual-antenna mapping matrix M to obtain nc modulation symbols from each of the first time-frequency resource elements, wherein nc>1 and wherein the first symbol-to-transmit-layer mapping matrix M has dimensions k by nc. The first data symbols are decoded to obtain downlink control information assigning second time-frequency resource elements to the receiver.

Abstract: Methods, network nodes (300, 304) of a radio network and a wireless device (302), for controlling operation of the wireless device (302) accessing the radio network. A signalling network node (300) obtains (3:2) an access parameter configuration. The access parameter configuration is one out of a compressed set of prodefined access parameter configurations where different synchronization signals are associated with different access parameter configurations according to a predefined mapping such that a range of different synchronization signals are jointly mapped to an access parameter in the compressed set of predefined access parameter configurations. The signalling network node (300) further obtains (3:2) and signals (3:3) to the wireless device (302) a synchronization signal that is associated with the access parameter configuration according to said prodefined mapping.

Abstract: A cellular network supports radio communication based on a first configuration which organizes a time-frequency space in first resource elements and radio communication based on a second configuration which organizes the time-frequency space in second resource elements and assigns at least one of the second resource elements to a utilization which is in conflict with the radio communication based on the first configuration. A node of the cellular network sends an indication to a communication device. The indication comprises time domain and/or frequency domain information for defining a pattern comprising at least one of the first resource elements which is to be disregarded by the communication device when performing radio communication with the cellular network based on the first configuration and/or the second configuration.

Abstract: The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterised in that at least a part of the second overhead stream is withdrawn as a purge stream.

Abstract: A process for producing a polymer composition comprising the steps (A) to (M) as recited herein, involving the polymerization, in a polymerization reactor of a first polymer, a first stream thereof being passed into a first separator wherein a first liquid phase comprising the polymer and a first vapor phase coexist; withdrawing a first vapor stream and a first concentrated solution stream comprising the polymer from the first separator, passing at least a part of the first vapor stream to a first fractionator; withdrawing a first overhead stream and a first bottom stream from the first fractionator; recovering at least a part of the first overhead stream as a first recycle stream and passing it to the polymerization reactor; passing the first concentrated solution stream from the first separator to a second separator, wherein a second liquid phase comprising the polymer and a second vapor phase coexist; passing at least a part of the second vapor stream to a second fractionator; withdrawing a second overhead

Abstract: A wireless device is configured with a plurality of channel-sensing resources, each channel-sensing resource being associated with at least one corresponding transmission resource. The wireless device evaluates (810), in response to a determination that first data is ready to be transmitted by the wireless device, whether one or more of the plurality of channel-sensing resources are occupied, and transmits (820) at least a part of the first data on at least one transmission resource associated with at least one channel-sensing resource, in response to detecting that the at least one of the plurality of channel-sensing resources is not occupied. The wireless device further receives (830) a grant for a scheduled transmission at least partly overlapping with at least one of said plurality of channel-sensing resources; and transmits (840) second data in accordance with the received grant.

Abstract: A method is disclosed performed by a base unit, of a base station system of a wireless communication network. The base station system further comprises a remote unit connected via a wired transmission line to the base unit, the remote unit being arranged for transmitting signals wirelessly to a wireless communication device. The method comprises modulating received Media Access Control, MAC, data packets onto a plurality of sub-frequency bands of a frequency band of the transmission line, and transmitting, to the remote unit, the modulated MAC data packets over the transmission line. Further, a corresponding method performed by a remote unit is disclosed.

Abstract: Systems and methods are disclosed for triggering a long range extension mode of operation for a wireless device in a cellular communications network. In one preferred embodiment, the wireless device is a Machine Type Communication (MTC) device. In one embodiment, a node in the cellular communications network determines that the wireless device is to operate in the long range extension mode if there is difficulty in establishing communication between the wireless device and the cellular communications network. If the wireless device is to operate in the long range extension mode, the node activates one or more long range extension mechanisms with respect to the wireless device such that the wireless device operates in the long range extension mode. In this manner, the long range extension mode is selectively triggered for the wireless device.

Abstract: There is provided provision of timing information of a first timing information source using timing information of a second timing information source to a wireless device. A network node determines that second timing information from the second timing information source is available and that timing information from the first timing information source is derivable from the second timing information. The network node instructs the wireless device to use the second timing information as a source for deriving first timing information of the first timing information source.

Abstract: A method and a network node (130) for managing a geo-fence for use by a source radio network node (120) are disclosed. The network node (130) receives (A010) indications about signal quality at respective positions of user equipments (110), wherein the user equipments (110) have been subject to hand-overs from the source radio network node (120) at the respective positions, wherein the hand-overs are based on signal quality measured for the user equipments (110). The network node (130) defines (A040) the geo-fence based on the respective positions and the indications about signal quality, wherein the geo-fence defines a geographical area. The network node (130) supports (A050) a hand-over of a user equipment (110) from the source radio network node (120) to a target radio network node (121) while using the geo-fence, wherein the hand-over is performed without measurements, by the user equipment (110), of signal quality towards the target radio network node (121) for the user equipment (110).

Abstract: A method and transition device for enabling communication of data between a remote radio unit and a central baseband unit in a wireless network. When detecting a first interface configuration used by the remote radio unit and a second interface configuration used by the baseband unit, the transition device configures interface functions, based on the first and second interface configurations. The interface functions are selected from a set of predefined interface functions associated with different interface configurations. The transition device then establishes a data flow between the remote radio unit and the central baseband unit over the transition device, and performs conversion between the first interface configuration and the second interface configuration for data communicated in the data flow, using the selected interface functions.

Abstract: The present disclosure relates to a method, a device and a computer program for configuring a guard period in Half Duplex Frequency Division Duplex, HD-FDD, operation. According to some aspects, the disclosure relates to a method, performed in a wireless device, of configuring a guard period in HD-FDD operation. The method comprises obtaining a timing advance between the wireless device and an access point; and determining a guard period in the wireless device based on the obtained timing advance and a radio access capability of the wireless device. The disclosure also relates to a wireless device and to a computer program for executing the methods.

Abstract: Systems and methods are disclosed for adjusting Radio Link Monitoring (RLM), Radio Link Failure (RLF) detection, RLF recovery, and/or connection establishment failure detection for wireless devices (16) in a cellular communications network (10) depending on mode of operation. In one embodiment, a node (14, 16) in the cellular communications network (10) determines whether a wireless device (16) (e.g., a Machine Type Communication (MTC) device) is to operate in a long range extension mode of operation or a normal mode of operation. The node (14, 16) then applies different values for at least one parameter depending on whether the wireless device (16) is to operate in the long range extension mode or the normal mode. The at least one parameter includes one or more RLM parameters, one or more RLF detection parameters, and/or one or more RLF recovery parameters.