Abstract: A polarization controller (10;40) is configured to control polarization of an optical signal. The polarization controller comprises a first polarization rotator (18) and a second polarization rotator (28) controllable by control settings. The polarization controller comprises a monitor unit (34) configured to generate a monitoring value indicating a performance of the polarization controller. The polarization controller is configured to determine from the monitoring value if the polarization controller is operating in a selected one of a plurality of optimal performance states (52). If operation is not in an optimal performance state, the polarization controller is further configured to select different control settings to select an alternate one of the plurality of optimal performance states for the polarization controller.

Abstract: An opto-electronic oscillator (10) comprising: an optical source (12) to generate an optical carrier signal having a carrier wavelength; an optical phase modulator (14) to apply a sinusoidal phase modulation to the optical carrier signal to generate two first order sidebands having a ? phase difference between them; an optical phase shifter (16) comprising an optical resonator configured to apply a substantially ? phase-shift to one of the first order sidebands at a preselected wavelength within an optical spectrum of said first order sideband; and a photodetector (18) configured to perform optical heterodyne detection of the optical carrier signal with both: said one of the first order sidebands substantially it phase shifted by the optical resonator; and the other of the first order sidebands, to generate an electrical carrier signal (20), and wherein a first part of the electrical carrier signal (20a) is delivered to an electrical output (22) and a second part of the electrical carrier signal (20b) is deli

Abstract: Embodiments herein relate to a first station (STA1) and a method performed by a first station (STA1) for handling Request-to-Send/Clear-to-Send, RTS/CTS, transmissions in a wireless communications network (100). The first station (STA1) is served by a first access point (AP1) in a first Basic Service Set (BSS1). The first station (STA1) receives a RTS/CTS transmission relating to a second Basic Service Set (BSS2). Then, the first station (STA1) determine whether or not to set a Network Allocation Vector, NAV, according to the RTS/CTS transmission based on whether the RTS/CTS transmission was sent from a second station (STA2) or from a second access point (AP2) in the second Basic Service Set (BSS2). Embodiments herein also relate to a first access point (AP1) and a method performed by a first access point (AP1) for handling RTS/CTS transmissions in a wireless communications network (100).

Abstract: It is presented a method for control of Transmission Time Interval (TTI) combinations in multicarrier High Speed Uplink Packet Access (HSUPA). The method is performed in a serving node of a communication network and comprises sending a single High Speed Signalling Control Channel (HS-SCCH) order for TTI switching of a primary Uplink (UL) frequency and for TTI switching of a secondary uplink frequency to a user equipment. It is also presented a serving node, a user equipment, a computer program and a computer program product thereof.

Abstract: A system and method for providing multisession 360° immersive video services in a network portion having a dedicated bandwidth capacity. In one embodiment, a bandwidth optimization method is operative to determine respective bandwidth allocations for the video sessions responsive to receiving an indication of the dedicated bandwidth capacity, a plurality of weights corresponding to the video sessions and a plurality of bitrate caps configured for the video sessions. Respective bandwidth allocations may be provided to a tile selection process configured to select tiles for a corresponding video session on a frame-by-frame basis from a plurality of tile-encoded bitrate representations of a media input stream associated with the video session, wherein each tile-encoded bitrate representation is provided with a separate video quality.

Abstract: There are provided mechanisms for handling network performance degradation in a communications system. A method is performed by a wireless device. The method comprises detecting occurrence of a KPI event associated with a first radio access network node. The method comprises reporting the KPI event to an OSS entity via a second radio access network node.

Abstract: A method for configuring an RE of an access node, performed by an REC of the access node. The REC has an REC-RE interface to the RE. The method comprises determining scheduling and allocation of radio resources. The radio resources are to be used by the RE when communicating over a radio interface in a scheduled TTI. The method comprises configuring, in advance of the scheduled TTI, the RE to, in the scheduled TTI, operate according to the determined allocation of radio resources and communicate with the REC according to the determined scheduling. The method comprises communicating data with the RE in the scheduled TTI according to the determined scheduling.

Abstract: Embodiments of the disclosure generally relate to transmission of TA information in a non-paging procedure. A network device receives, from a source node, a first message that is a non-paging message. The source node is one of a terminal device and a control device in a core network. Then, the network device obtains TA information about the terminal device from the first message and transmits, to a destination node, a second message generated based on the first message. The destination node is the other of the terminal device and the control device.

Abstract: A method of a priority trainer of a many core processing system comprising a plurality of cores is disclosed.

Abstract: A method in a user equipment (121) for determining a transport block size is provided. The transport block size is used by the user equipment (121) in receiving downlink data transmissions from a network node (110) on an enhanced Control CHannel, eCCH. The user equipment (121) and the network node (110) are comprised in a telecommunications system (100). The user equipment (121) has access to a table of predetermined transport block sizes. The user equipment (121) may calculate an indicator NPRB based on the total number of PRBs allocated to the downlink data transmission NPRB, and based on an PRB offset value OPRB or a PRB adjustment factor APRB. Then, the user equipment (121) may determine the transport block size from the table of predetermined transport block sizes based on at least the calculated indicator NPRB. A user equipment, a method in network node and a network node are also provided.

Abstract: A first network node 104 and a method therein for establishing a neighbour relation with a second network node 106,106?. The first network node 104 and the second network node are operating in a wireless communications network 100, The first network node receives an uplink synchronisation signal from a communications device 110 operating in the wireless communications network. For neighbour node determination, the first network node transmits, to a third network node 108 operating in the wireless communications network, a first information, which first information relates to the identity of the received signal and to a first reception time of the signal. The first network node establishes a neighbour relation with at least one of a second network node and one or more of one or more further second network nodes based on a neighbour node determination performed by the third network node based on the first information.

Abstract: A data center network node (13) comprising a first data connection (22) for connecting at least one server to a conventional subnetwork comprising at least one of a switch or a router, an optical transceiver (14) comprising a transmitter (16) and a receiver (17), a second data connection (23) for connecting the at least one server to the optical transceiver, a switching arrangement (21) for linking the optical transceiver (14) to an offload subnetwork (10), the switching arrangement configurable between a first configuration (24) in which the offload subnetwork bypasses the optical transceiver and a second configuration (28) in which the optical transceiver is optically linked to the offload subnetwork.

Abstract: A method in an IP multimedia subsystem, IMS, of a telecommunications network. The loss of a secure association between a P-CSCF of the IMS and a user equipment, UE, served by the P-CSCF is detected, or a UE is relocated from a further P-CSCF to the first mentioned P-CSCF. The first mentioned P-CSCF sends a reregistration request to the UE; receives a SIP REGISTER message from the UE; and performs P-CSCF registration with the UE including establishing a new secure association with the UE.

Abstract: A method and apparatus is executed by a network device in a source packet in routing (SPRING) network. The method is to establish a multipoint to multipoint multicast distribution tree where the network device is selected as a rendezvous point for the multipoint to multipoint multicast distribution tree. The method includes advertising the rendezvous point with a multicast group identifier and multicast segment identifier via a control plane protocol, receiving at least one interest registration from receivers of the multicast group via the control plane protocol, and constructing the multipoint to multipoint multicast distribution tree with the rendezvous point as a root and each of the receivers as leaves using unicast tunnels and replication points.

Abstract: A small form-factor pluggable (SFP) module and related method are provided to perform additional packet processing in a communication network. The SFP module is generally configured to at least partially process data packets as they transit from a first networking equipment toward a second networking equipment in order to modify or otherwise update header information of the packets as a function of the content of their data payload. Modifying header information of data packets as they transit between interconnected networking equipments allows interconnected networking equipments to perform packet processing on the modified header information.

Abstract: A system, apparatus, and method for controlling data usage at a customer premises. A gateway configured as a single point of entry receives all data entering the premises. All data usage by client devices within the premises is monitored. A DataCap Management Unit adjusts a premises bandwidth cap throughout a billing cycle to prevent the data usage from exceeding a data cap before the billing cycle ends.

Abstract: A substrate integrated waveguide, SIW, antenna comprises a modified design of prior art SIW antennas that comprises an addition of electrically conducting means, e.g. vias, also along the substrate extending from the antenna aperture. By doing so, the SIW antenna of the present disclosure enables a reduction of mutual coupling between neighboring SIW antennas when arranged adjacent each other, e.g. in an array. Moreover, a reduction of back radiation in the SIW antenna can also be observed.

Abstract: A technique for processing messages in a message-based communication scenario is described. In the communication scenario, messages are received from an input message stream, multiplied and forwarded to multiple message consumers, and persisted together with at least one of a time stamp and a message identifier in a persistent storage for later replay to the message consumers. A method aspect of this technique comprises detecting a replay triggering event associated with a message consumer. The method aspect further comprises, in response to detecting the replay triggering event, creating a replay function for the message consumer. The replay function is configured to receive persisted messages from the persistent storage and to send the persisted messages to the message consumer.

Abstract: A network node (110) samples data packets of network traffic. For each sampled data packet, the network node (110) compares a packet header of the sampled data packet to a set of one or more packet header patterns. Depending on the comparison, the network node (110) determines a length of a packet header portion to be extracted from the sampled data packet. Then the network node (110) extracts the packet header portion of the determined length from the sampled data packet and generates a datagram comprising the extracted packet header portions of the sampled data packets.

Abstract: There is provided mechanisms for shaping transmission beams in a wireless communications network. A method is performed by a network node. The method comprises acquiring channel measurements for wireless devices served by radio access network nodes using current beam forming parameters and being controlled by the network node. The method comprises determining, based on the channel measurements, desired beam forming parameters for shaping the transmission beams for at least one of the radio access network nodes. The method comprises initiating a gradual change of the current beam forming parameters to the desired beam forming parameters for shaping the transmission beams for the at least one of the radio access network nodes. The gradual change causes a need for network controlled handover to occur for at least some of the wireless devices served by the radio access network nodes.