Telefonaktiebolaget Lm Ericsson (publ)

Optis Cellular Technology, LLC

Anders Derneryd

Andreas Nilsson

Lars Manholm

Martin Johansson

Anders Stjernman

Ulrika Engström

Sven Oscar Petersson

Henrik Asplund

Jonas Medbo

Jonas Fridén

Fredrik Harrysson

Jan-Erik Berg

Björn Johannisson

Bj&ouml;rn Gunnar Johannisson

Bo Göransson

Arne Simonsson

Spartak Gevorgian

Lars G Josefsson

Mats H Andersson

Lars Robert Loostr&ouml;m

Zvonimir Sipus

Lars Loostrom

Oscar Petersson

Mats Andersson

Lars Josefsson

The invention relates to a wireless communication devicehaving an upper partand a bottom part, the upper partcomprising one or more transmission antenna device(s). The upper partand the bottom partare arranged movably in relation to each other, so that the bottom part, in use mode, is closer to the user than the upper part. The bottom partcomprises one or more reception antenna device(s)

Wireless communication device

The present invention relates to a node in a wireless communication network. The node comprises an antenna arrangement which in turn comprises an array antenna. The array antenna comprises a first set of antenna elements forming a first antenna aperture, and a second set of antenna elements forming a second antenna aperture. The antenna arrangement further comprises a switching arrangement that is adapted to switch between a first mode of operation and a second mode of operation. In the first mode of operation, the first antenna aperture is arranged to generate a first antenna beam. In the second mode of operation, the first antenna aperture and the second antenna aperture are combined and arranged to generate a second antenna beam, the first antenna beam having a wider antenna beamwidth than the second antenna beam. The present invention also relates to a corresponding method.

Device and a method for antenna alignment

The present invention relates to a method for alignment of a first node with at least one secondary node in a wireless communication network. The first node includes first node antenna beams with corresponding designated pointing angles. For each such beam, the method comprises the steps of, for each secondary node: directing a first node antenna beam in its designated pointing angle; using a secondary node antenna beam where objects can generate signal reflections/diffractions; and detecting at least one signal property of reflected/diffracted signals. The method further comprises the steps: exchanging information between the nodes, regarding beam angles resulting in said signal property exceeding a corresponding threshold level; and selecting a first node beam angle and a secondary node beam angle from the beam angles for communication between the first node and each secondary node.

Method for alignment of multi-beam antennas in a non line-of-sight scenario

A method for alignment of a first node with a second node in a wireless communication network. The method comprises directing a first node first antenna beam at a first pointing angle, using a second node antenna beam for scanning a first volume with objects being able to generate signal reflections/diffraction, detecting a first signal property of reflected/diffracted signals; and saving scan angles resulting in said first signal property exceeding a first threshold level. The method further comprises directing the second node antenna beam at said saved angles, and, for each such angle: using a first node second antenna beam for scanning; and detecting at least a second signal property of reflected/diffracted signals; exchanging information between the nodes comprising first node second antenna beam pointing direction angles resulting in said second signal property exceeding a second threshold level and said saved angles; and selecting angles for communication.

Method for antenna alignment in a non line-of-sight scenario

The present invention relates to a wireless communication arrangement comprising a node and a leaky cable running between a first and second converter arrangement. The first converter arrangement connects a first downlink signal and a second downlink signal to the cable, and converts the second downlink signal from a first frequency to a second frequency. The cable's other end is connected to the second converter arrangement which converts the second downlink signal from the second frequency to the first frequency. The second converter arrangement also converts a first uplink signal from a third frequency to a fourth frequency. The first converter arrangement receives the converted first uplink signal from the second converter arrangement and converts it from the fourth frequency to the third frequency. The first frequency is separated from the second frequency, and the third frequency is separated from the fourth frequency.

Leaky cable communication

Systems and methods of a node in a wireless communication system with switchable antenna functions are provided. In one exemplary embodiment, a method by a controller for configuring a switching network may include configuring the switching network for a first mode of operation associated with multiple-input, multiple-output (MIMO) communications. Further, the method may include configuring the switching network for a second mode of operation associated with beamforming communications.

Node in a communication system with switchable antenna functions

A node in a wireless communication system comprising at least a first cell region and a second cell region, where cell borders delimit between different cell regions. The node comprises at least a first antenna function with a first antenna radiation lobe and a second antenna function with a second antenna radiation lobe, the radiation lobes being arranged to cover the first cell region at the same time. For each cell region, only one of the antenna radiation lobes is intended for communication at each cell border. Furthermore, the first antenna radiation lobe is arranged for signals at a first frequency band, and the second antenna radiation lobe is arranged for signals at least a second frequency band.

Communication system node with improved interference situation

An antenna arrangement comprising at least a first and a second elongated structure, e.g., a coaxial cable, for guiding an electromagnetic wave is provided. Each of said structures comprises a plurality of radiation elements. The structures are positioned alongside each other in their longitudinal direction of extension forming a bundle. The elongated structures are arranged within the bundle such that the radial positions of said structures are alternated in the longitudinal direction of extension.

Antenna arrangement

Antenna arrangement with an elongated structure for guiding an electromagnetic wave

A wireless communication system comprising at least one base station in a communication cell, wherein the base station is equipped with at least one array antenna comprising at least two antenna ports which are connected to respective at least two corresponding antenna elements, wherein at least two of the at least two antenna elements have essentially the same polarization. The array antenna is arranged for communication via at least two antenna radiation lobes, each antenna radiation lobe communicating an information stream to at least one user equipment (UE) in the cell, wherein each antenna radiation lobe is individually controllable both in azimuth and elevation, whereby the communication of the information streams is optimized.

Array antenna arrangement

The present invention relates to a node () in a wireless communication system, the node () comprising at least a first and second antenna function (), and a first and second radio chain (). At least at the start of a first mode of operation, each antenna function () is connected to a corresponding radio chain (). The node further comprises a switching network () and a beamforming network (), which switching network (), at least at the start of a second mode of operation, is arranged to disconnect at least one antenna function () from its corresponding radio chain () and connect it to another of the radio chains () via at least a part of the beamforming network (), such that at least two antenna functions () are connected to the same radio chain (). The node () is arranged to perform beamforming for said at least two antenna functions () by means of said beamforming network (), the switching network () being arranged to switch between the first mode and the second mode.

An antenna () comprising first () and second () structures for guiding electromagnetic waves, each comprising groups () of radiation elements. For adjacent sections in 5 the structures, at least one applies: ?Groups of radiation elements are distributed along the two structures such that a group () in the first structure overlaps a group () in the second structure partially or not at all. ?Radiation elements within said groups () exhibit a common 10 main direction of extension within the group, and differs between the first and the second groups by an angle of at least 10 degrees. ?The radiation elements of the groups () are distributed along the structures () on sides of the structures which face different directions.

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Göteborg, Sweden

Anders Derneryd