Abstract: A method in an access network (200) including a radio access network (100) and a packet data network gateway (P-GW) includes receiving (702), at a network node (510) in the access network, a service setup request (615) from an external service via a packet switched data communication network (580), wherein the service setup request is to set up a packet switched connection between the external service and a wireless terminal (10) served by the radio access network, negotiating (704) a quality of service, QoS, level with the external service for the packet switched connection, wherein the QoS level includes a plurality of QoS parameters including a minimum QoS duration, and causing (706) the packet data network gateway to establish a bearer (410) between the packet data network gateway and the wireless terminal, the bearer having the QoS level.

Abstract: According to some embodiments, a method in a wireless device of reducing collisions between device-to-device (D2D) communication resources and D2D discovery resources comprises obtaining a first plurality of transmission resources available for transmitting D2D discovery messages, and obtaining a second plurality of transmission resources comprising a subset of the first plurality. The subset comprises transmission resources potentially unavailable for transmitting D2D discovery messages. The method includes associating a first weighted value with each transmission resource of the first plurality not included in the second plurality, and associating a second weighted value with each transmission resource of the second plurality. The method includes selecting a transmission resource from the first plurality of transmission resources using the first and second weighted values, and determining whether the selected transmission resource is available to transmit a discovery message.

Abstract: A wireless device configured for transmission using a transmission scheme other than a multi-antenna transmission scheme is provided. The wireless device includes at least one receiver configured to receive a transmission of a multi-antenna transmission scheme, and processing circuitry configured to perform at least one of a channel estimation function and measurement function using the received transmission of the multi-antenna transmission scheme, the multi-antenna transmission scheme remaining transparent to the wireless device.

Abstract: A method and a device configured for selecting a transmission parameter in a wireless communication network are disclosed. According to one aspect, at least one transmission parameter is selected based at least upon an estimated level of synchronization for the first wireless device.

Abstract: Embodiments of the present disclosure provide a method, apparatus and computer program product for sidelink transmission control. The method implemented at a first user equipment which supports a first radio access technology comprises: determining a sidelink transmission mode for transmitting, wherein the sidelink transmission mode is one of a first mode corresponding to the first radio access technology and a second mode corresponding to a second radio access technology; and transmitting a sidelink signal according to the sidelink transmission mode using a sidelink resource configured by a network node which serves the first user equipment.

Abstract: Some embodiments provide a method for channel estimation in a wireless device. According to the method, the wireless device obtains (1010) an indication that a set of antenna ports, or antenna port types, share at least one channel property. The wireless device then estimates (1020) one or more of the shared channel properties based at least on a first reference signal received from a first antenna port included in the set, or having a type corresponding to one of the types in the set. Furthermore, the wireless device performs (1030) channel estimation based on a second reference signal received from a second antenna port included in the set, or having a type corresponding to one of the types in the set, wherein the channel estimation is performed using at least the estimated channel properties.

Abstract: According to certain embodiments, a method by a wireless device is provided for resource sensing. The method includes acquiring, from a network node, an indication of resources associated with a first resource pool. The first resource pool is for use in an exceptional communication with another device. A triggering event associated with signalling from the network node is identified. Based on the triggering event, a need for the exceptional communication with the other device is determined. At least one resource is selected from the first resource pool, and a message is transmitted using the at least one resource selected from the first resource pool.

Abstract: There is disclosed a method for operating a wireless device in a wireless communication network. The method comprises configuring, by the wireless device, a reporting time window for transmitting a report to the wireless communication network and determining, by the wireless device, whether data transmission from the wireless device to the wireless communication network is scheduled for a transmission time within the reporting time window, as well as transmitting the report together with the scheduled data transmission if it is determined that such is scheduled for a transmission time within the reporting time window. There are also disclosed corresponding methods and devices.

Abstract: Steel weld metal compositions can include from 10.75 to 12.00 wt % chromium, from 0.09 to 0.13 wt % carbon, from 0.2 to 0.5 wt % manganese, from 0.1 to 0.3 wt % silicon, from 0.2 to 0.7 wt % nickel, from 0.1 to 0.5 wt % molybdenum, from 0.8 to 1.2 wt % cobalt, from 0.03 to 0.08 wt % niobium, from 0.8 to 1.2 wt % tungsten, from 0.3 to 0.8 wt % copper, from 0.10 to 0.15 wt % vanadium, from 0.01 to 0.05 wt % titanium, from 0.005 to 0.010 wt % boron, from 0.005 to 0.015 wt % nitrogen; wherein the balance of the steel weld metal composition is iron and unavoidable impurities. Methods of depositing the steel weld metal compositions on a workpiece by an electric arc welding process are also described. Consumable electric arc welding electrodes producing high chromium creep resistant steel weld metal compositions are also described.

Abstract: Steel weld metal compositions can include from 9.00 to 12.00 wt % chromium, from 0.02 to 0.06 wt % carbon, from 0.3 to 0.7 wt % manganese, from 0.1 to 0.3 wt % silicon, from 0.5 to 1.2 wt % nickel, from 0.1 to 0.5 wt % molybdenum, from 1.0 to 1.5 wt % cobalt, from 0.03 to 0.08 wt % niobium, from 0.2 to 0.8 wt % tungsten, from 0.3 to 0.8 wt % copper, from 0.005 to 0.010 wt % boron, and from 0.005 to 0.025 wt % nitrogen; wherein the balance of the steel weld metal composition is iron and unavoidable impurities. Methods of depositing the steel weld metal compositions on a workpiece by an electric arc welding process are also described without the use of a post weld heat treatment. Consumable electric arc welding electrodes producing high chromium creep resistant steel weld metal compositions are also described.

Abstract: The embodiments herein related to a method in a network node, a network node, a method in a user equipment and a user equipment for handling base sequences in a communications network. The network node is configured to communicate with a first user equipment. The network node comprises information about a default base sequence and an alternative base sequence. The network node determines, for the first user equipment, that the alternative base sequence should replace the default base sequence. The network node sends information about the determined alternative base sequence to the first user equipment.

Abstract: The present disclosure relates to methods and to a wireless device for enabling device-to-device communication. In particular the present disclosure relates to a method, performed in a radio node, of assigning resources for direct control signalling. The method comprises receiving from at least one further radio node sets of resources for direct control signalling in a respective cell or cluster. The method further comprises assigning resources for direct control signalling transmission within an area controlled by the radio node based at least on the received sets of resources, and transmitting to wireless devices controlled by the radio node, a message indicating resources assigned for direct control signalling. The disclosure also relates to the corresponding method in a wireless device and to a radio and to a wireless device implementing the methods, as well as to corresponding computer programs.

Abstract: A transmitting UE schedules radio frequency resources for use in a data transmission. The transmitting UE determines the transmission bandwidth, subject to certain restrictions, such as allowed DFT sizes for the UE for a data transmission. The determination may be performed through autonomous resource selection operations and/or may be performed using information received through signaling received from the network node as part of a scheduling grant. The UE further determines the ALLOCATED BANDWIDTH. The ALLOCATED BANDWIDTH can be determined based on the TRANSMISSION BANDWIDTH, which has been determined, using a defined rule. Furthermore, the UE generates and transmits toward a receiving UE a scheduling assignment (SA) that indicates the number or the set of subchannels that are within, and conform to, the ALLOCATED BANDWIDTH which was determined. The UE can then perform the data transmission using the SA indicated number or set of subchannels.

Abstract: Methods, apparatus and computer program products for improving multi-cast communication. A method implemented at a server comprises determining at least one cluster; determining a mapping between one of the at least one cluster and at least one bearer; indicating the determined mapping to a radio access network (RAN); and multicasting a message using a first bearer via the RAN, the first bearer being selected from the at least one bearer based on the mapping. With the disclosure, multi-cast services can be provided with more flexibly and higher efficiency.

Abstract: Some embodiments provide a method for channel estimation in a wireless device. According to the method, the wireless device obtains (1010) an indication that a set of antenna ports, or antenna port types, share at least one channel property. The wireless device then estimates (1020) one or more of the shared channel properties based at least on a first reference signal received from a first antenna port included in the set, or having a type corresponding to one of the types in the set. Furthermore, the wireless device performs (1030) channel estimation based on a second reference signal received from a second antenna port included in the set, or having a type corresponding to one of the types in the set, wherein the channel estimation is performed using at least the estimated channel properties.

Abstract: Systems and methods for signaling a pattern of cyclic shifts and orthogonal cover codes for use by a wireless device in multi-layer transmissions are presented. In one exemplary embodiment, a method includes receiving a signal that includes B bits for identifying a reference signal. Each of several available reference signals are defined by a cyclic shift and an orthogonal cover code. Further, the method includes using the B bits to identify the cyclic shift and orthogonal cover code according to pre-determined tables that map each value of the B bits to a pattern of cyclic shift and orthogonal cover code combinations for a multi-layer transmission scheme. The patterns for the multi-layer transmission scheme include first and second patterns based on the same cyclic shifts, but where some, but not all, of the cyclic shifts in the first pattern are associated with the same corresponding orthogonal cover codes in the second pattern.

Abstract: In one aspect, a wireless device receives, from a wireless network node, two or more semi-persistent scheduling, SPS, configurations, each of the SPS configurations defining a plurality of periodic transmission opportunities for the wireless device, at least two of the two or more SPS configurations having different periods for the periodic transmission opportunities. The wireless device then transmits data corresponding to a first traffic type or a first radio bearer according to a first one of the two or more SPS configurations and transmitting data corresponding to a second traffic type or a second radio bearer according to a second one of the two or more SPS configurations.

Abstract: According to some embodiments of inventive concepts, a method may be provided to operate a UE providing sidelink communications with other wireless devices. The method may include scheduling a first transmission from the UE, wherein the first transmission has a first priority. The method may also include scheduling a second transmission from the UE, wherein the second transmission has a second priority, wherein the first priority is greater than the second priority, and wherein the first and second transmissions are scheduled for transmission during a time interval. The method may further include transmitting the first transmission during the time interval, and responsive to determining a violation of a timing limit corresponding to scheduling the first and second transmissions during the time interval and responsive to the first priority being greater than the second priority, dropping transmitting the second transmission during the time interval.

Abstract: The methods and apparatus disclosed herein processes reference signals in an antenna diversity system, e.g., where both the transmitting and receiving devices use multiple antennas. The solution presented herein process reference signals at the transmitting device in such a way to enable the receiving device to efficiently and accurately estimate the covariance matrix associated with data transmitted using transmitter diversity. This is achieved by processing the reference signals used for the covariance estimation and the data signals in the same way, e.g., by precoding data and reference signal portions of one or more signals using the same coding scheme.

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.