Telefonaktiebolaget Lm Ericsson (Publ)

Mats Johansson

Ahmedul Quadir

Francesco Testa

Tomas Lagerqvist

Wei-Ping Huang

Stefano Stracca

Stephane Lessard

David Better

Peter M Petersson

Alessandra Bigongiari

Harish Venkatraman Bhat

Anders Forslund

Peter Johansson

Hans Von Goes

Govardhan Madhugiri

Stefan Tjärnlund

Tom Rehnström

Sudha Lohani

Markus Norden

Enar Sundell

Lars Engblom

Peter Scott

A method, system and apparatus are disclosed. In one or more embodiments, a network node is provided. The network node includes processing circuitry configured to: determine an indication of a rate of change of radio resource control, RRC, connected wireless devices; and determine whether to modify a physical uplink control channel, PUCCH, physical resource block, PRB, allocation based at least on the rate of change of RRC connected wireless devices.

Traffic arrival based dynamic PUCCH

Embodiments herein relate to a method performed by a network node (), for handling baseband resources in a wireless communications network (). The network node () estimates an uplink resource need f( . . . ) and a downlink resource need g( . . . ) for a future Transmission Time Interval i based on resource metrics from one or more previous Transmission Time Intervals. The network node () determines a resource division between uplink and downlink based on the estimated uplink and downlink resource needs. The network node () further schedules the uplink and downlink resources based on the determined resource division.

Network node and method performed therein for handling baseband resources

To perform wireless communication scheduling, a network node () calculates a corresponding layer limit for each of a plurality of scheduling intervals of a cell () served to a plurality of user equipment via multi-user multiple-input multiple-output (MU-MIMO). The network node () schedules time-frequency resource utilization such that, for each of the scheduling intervals, no time-frequency resource is scheduled for use by more of the UEs () than the layer limit corresponding to the scheduling interval.

Dynamic MU-MIMO layer limit control

The embodiments herein relate to a method performed by a network node, for scheduling of a UE in UL. The network node is configured to schedule the UE using Frequency Selective Scheduling or resource fair scheduling. The network node estimates a PRBs for individual UEs, which are scheduled in the same cell and TTI. The network node determines whether the estimated number of PRBs fulfil one or more predetermined conditions. The network node determines to schedule the UEs using FSS when at least one of the one or more conditions are fulfilled, and determining to schedule the UEs using resource fair scheduling when none of the one or more predetermined conditions are fulfilled.

Network node and method performed therein for scheduling user equipment in uplink

An Optical Link Management Function 'OLMF' for obtaining an optical power level for an optical link between a first and a second optical transformation modules. The OLMF sends a first message instructing a first unit to feed a set of optical transmissions representing at least one bit pattern. The OLMF sends a second message instructing the first optical transformation module to transmit the set of optical transmissions at optical power levels in a range. The OLMF sends a third message instructing a second unit to register successful or unsuccessful decoding of the set of optical transmissions based on the bit pattern. The OLMF receives a set of indications representing successful or unsuccessful decoding of the set of optical transmissions at the optical power levels. The OLMF finds a lowest optical power level for which an optical transmission of the set on the optical link is successfully decoded.

Method and optical link management function for obtaining optical power level for an optical link

A silicon photonic device () comprising: a silicon core () having a core refractive index; and a structure formed in the silicon core, comprising: a first refractive index variation pattern () across the core in a first direction (x) and having a first modulation depth (H); and a second refractive index variation pattern () across the core in a second, orthogonal, direction (y) and having a second modulation depth (H), less than the first modulation depth. The first refractive index variation pattern overlays the second refractive index variation pattern, forming a three-dimensional structure. The first refractive index variation pattern only supports propagation of light having a TM mode between the first direction and a third direction (z) and the second refractive index variation pattern only supports propagation of light having a TE mode between the second direction and the third direction. An optical waveguide coupler is also disclosed. The optical waveguide coupler comprises a plurality of planar waveguides, each supporting propagation of one of a TE and a TM mode, and a plurality of silicon diffractive gratings each comprising a planar silicon core and a grating structure formed by a periodic refractive index variation extending across the core in a first direction and having a grating period and a modulation depth, these selected to cause the grating to support propagation of the light between the first direction and a third direction substantially orthogonal to the planar silicon core. Additionally the optical waveguide coupler comprises a plurality of tapered planar waveguides.

Silicon photonic device, optical polarisation beam coupler and optical waveguide coupler

Methods by a radio unit and related radio units are disclosed which control capacity of baseband processing resources allocated to a radio communication cell. The method includes determining a deadline margin for a prior transmission time interval (TTI) based on a difference between a time when baseband processing of data for transmission completed and a defined deadline time for completion of the baseband processing. The method further includes determining a desired capacity of baseband processing resources to allocate to the radio communication cell for a present TTI, and controlling capacity of baseband processing resources allocated to the radio communication cell for the present TTI based on the deadline margin and the desired capacity.

Allocating baseband resource capacity to cells based on baseband processing deadline margins

Power modules and related methods are providing configured to supply power from a power source to a power consuming unit. The power module configured to disconnect power in the power module in case of excess currents through the circuit breakers.

Methods and arrangements including circuit breaking means in a power supply system

The present invention relates to a method and a printed board assembly for use in a MicroTCA system, wherein backplane pin connectors of the printed board assembly are arranged to be received in receiving connectors of a backplane interconnect, characterized in that it comprises at least one switch unit which is arranged with physical output/input ports that have physical port numbers that can be overridden by logical port numbers, an optimal routing of a number of sets of conductive threads in the printed board assembly arranged so that none of the conductive threads cross over each other while connecting physical output/input ports of the switch units with the backplane pin connectors, and printed circuit board layers arranged to shield signals travelling in the conductive threads in conductive layers of the printed circuit board layers from any significant crosstalk.

Printed board assembly

The present invention eliminates the need for an anti-aliasing filter in a receiver that employs an analog-to-digital converter. By maintaining a predetermined relationship between a local oscillator frequency and the sampling frequency of the analog-to-digital converter, aliasing that would normally occur in the desired pass band is avoided. More specifically, the frequency of the periodic signal provided to the mixer is an integer multiple of half the sampling rate of the analog-to-digital converter. In a preferred, non-limiting example embodiment, the sampling rate of the analog-to-digital converter Fand the frequency of the local oscillator Fare related by the following: F=n*F/2, where n is any positive integer.

Growing community of inventors

Älvsjö, Sweden

Mats Johansson