Patents by Inventor Mats H. Andersson

Mats H. Andersson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9107082
    Abstract: 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.
    Type: Grant
    Filed: January 13, 2014
    Date of Patent: August 11, 2015
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mats H. Andersson, Martin Johansson, Bo Göransson, Ulrika Engström, Anders Derneryd, Sven Petersson
  • Publication number: 20140120923
    Abstract: 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.
    Type: Application
    Filed: January 13, 2014
    Publication date: May 1, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Mats H. Andersson, Martin Johansson, Bo Göransson, Ulrika Engström, Anders Derneryd, Sven Petersson
  • Patent number: 8666451
    Abstract: 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.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: March 4, 2014
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Anna Barbro Ulrika Engström, Bo Göransson, Martin Nils Johansson, Mats H Andersson, Sven Oscar Petersson, Sven Anders Gösta Derneryd
  • Patent number: 8384597
    Abstract: The present invention relates to a system for changing the radiation pattern shape of an antenna array during electrical tilting. The antenna array has multiple antenna elements, and the system comprises a phase-shifting device provided with a primary port configured to receive a transmit signal, and multiple secondary ports configured to provide phase shifted output signals to each antenna element. The system further comprises a phase-taper device that changes phase taper over the antenna elements, and thus the beam shape, with tilt angle ?. The invention is adapted for use in down-link as well as up-link within a wireless communication system.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: February 26, 2013
    Assignee: Telefonaktiebolaget LM Ericsson (Publ)
    Inventors: Lars Manholm, Mats H Andersson, Martin Johansson, Sven Oscar Petersson
  • Patent number: 8385926
    Abstract: A sub-node, such as a repeater station or relay station, equipped with a multi-beam sub-node link antenna. The beams of the sub-node link antenna allow communication between the sub-node and at least two nodes (access points/base stations) 11A-B; 11A-E. The sub-node is further provided with at least one transmitting and receiving coverage antenna to generate coverage in at least one geographical secondary coverage area a; a-c, and a control mechanism that selects one of the nodes to extend the geographical primary coverage area A-B; A-E of the node 11A-B; 11A-E to include the geographical secondary coverage area a; a-c of the sub-node. The invention is also related to a cellular communication network, and a method for generating coverage in a cellular communication network.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: February 26, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Martin Johansson, Mats H Andersson, Ingemar Folke Karlsson
  • Patent number: 8320825
    Abstract: The invention relates to communication in a wireless communications network in which a cell comprises areas with different topographies, for example between indoor and outdoor areas. The communication is optimized by means of a repeater for use in a fixed wireless broadband communications system, comprising receiving means for receiving a downlink signal from a base station, signal processing means for processing the downlink signal to produce an output signal, and transmitting means for transmitting the output signal, said repeater being characterized in that it comprises means for creating diversity in the output signal.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: November 27, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Bo Göransson, Mats H. Andersson
  • Publication number: 20120063525
    Abstract: 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.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 15, 2012
    Inventors: Anna Barbro Ulrika Engström, Bo Göransson, Martin Nils Johansson, Mats H. Andersson, Sven Oscar Petersson, Sven Anders Gösta Derneryd
  • Patent number: 8032080
    Abstract: The present invention relates to a wireless communication system (C) comprising at least one base station (1) in a communication cell (2), from which base station (1) at least two essentially uncorrelated antenna radiation lobes (7, 8, 9, 10) are formed. Each antenna radiation lobe (7, 8, 9, 10) communicates a MIMO (Multiple Input Multiple Output) communication stream. The system (C) further comprises at least one repeating transmitter/receiver (repeater) (18, 19, 20, 21), which is arranged for communicating one of the MIMO communication streams to and/or from at least one UE (user equipment) (12). The present invention also relates to a repeater that is a part of the system (C), and a method for communicating at least two MIMO communication streams to and/or from at least one UE (user equipment) (12), using at least one repeater (18, 19, 20, 21).
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: October 4, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Mats H Andersson, Bo Göransson
  • Publication number: 20110097992
    Abstract: The invention relates to communication in a wireless communications network in which a cell comprises areas with different topographies, for example between indoor and outdoor areas. The communication is optimized by means of a repeater for use in a fixed wireless broadband communications system, comprising receiving means for receiving a downlink signal from a base station, signal processing means for processing the downlink signal to produce an output signal, and transmitting means for transmitting the output signal, said repeater being characterized in that it comprises means for creating diversity in the output signal.
    Type: Application
    Filed: October 31, 2005
    Publication date: April 28, 2011
    Inventors: Bo Göransson, Mats H. Andersson
  • Publication number: 20100329222
    Abstract: A wireless telecommunications system having a plurality of radio base stations, the base stations in the system are arranged for communication with at least one user terminal in accordance with a first principle of wireless telecommunication. The system has at least a first sub-set of the plurality of radio base stations arranged for communication with at least one user terminal in the system in accordance with said first principle but also as MIMO-stations in cooperation with each other. Preferably, said first principle of wireless telecommunication is a principle within cellular telephony.
    Type: Application
    Filed: January 11, 2005
    Publication date: December 30, 2010
    Inventors: Paul Hallbjörner, Mats H. Andersson
  • Publication number: 20100075683
    Abstract: A sub-node, such as a repeater station or relay station, equipped with a multi-beam sub-node link antenna. The beams of the sub-node link antenna allow communication between the sub-node and at least two nodes (access points/base stations) 11A-B; 11A-E. The sub-node is further provided with at least one transmitting and receiving coverage antenna to generate coverage in at least one geographical secondary coverage area a; a-c, and a control mechanism that selects one of the nodes to extend the geographical primary coverage area A-B; A-E of the node 11A-B; 11A-E to include the geographical secondary coverage area a; a-c of the sub-node. The invention is also related to a cellular communication network, and a method for generating coverage in a cellular communication network.
    Type: Application
    Filed: December 11, 2006
    Publication date: March 25, 2010
    Inventors: Martin Johansson, Mats H. Andersson, Ingemar Folke Karlsson
  • Publication number: 20100053024
    Abstract: An antenna device for a telecommunications system, comprising a first antenna with a first radiation pattern and a second antenna with a second radiation pattern. The radiation patterns give the two antennas different coverage in the vertical plane of the antenna device, and the first and the second antennas are used for diversity purposes. The difference in vertical coverage between the first and the second antenna is such that at least the first null points in the vertical plane of the two radiation patterns do not coincide with each other.
    Type: Application
    Filed: November 14, 2006
    Publication date: March 4, 2010
    Inventors: Mats H. Andersson, Lars Manholm, Martin Nils Johansson, Stefan Johansson
  • Patent number: 7639191
    Abstract: The invention discloses an electronics device for personal use, comprising at least a first main surface, and at least a first antenna for communication via electromagnetic waves between the device and a second party. The antenna is an array antenna comprising at least a first and a second antenna element, and is arranged on said first main surface. Suitably, the electronics device is a portable computer comprising a lid which may be opened or closed, said first main surface being the lid, so that the antenna is arranged in the lid of the portable computer.
    Type: Grant
    Filed: July 4, 2005
    Date of Patent: December 29, 2009
    Assignee: Telefonaktiebolaget L M Ericsson (PUBL)
    Inventors: Mats H. Andersson, Paul Hallbjörner, Anders Rydberg
  • Publication number: 20090298421
    Abstract: The invention discloses a repeater antenna for use in point-to-point applications in telecommunications systems in the microwave range, intended for connecting transmissions from a first radio unit at a first site to a second radio unit at a second site. The repeater antenna is essentially plane, and is designed as a traveling wave antenna with at least a first and a second antenna beam, so that the first beam can be used for transmissions to and from said first radio unit, and the second beam can be used for transmissions to and from said second radio unit.
    Type: Application
    Filed: July 4, 2005
    Publication date: December 3, 2009
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mats H. Andersson, Paul Hallbjörner, Anders Rydberg
  • Publication number: 20090010356
    Abstract: The present invention relates to a wireless communication system, comprising at least one base station in a communication cell. The base station is equipped with at least one array antenna comprising at least two antenna ports which are coupled to respective at least two corresponding antenna Q elements, where at leas 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 UE (user equipment) in the cell. According to a certain aspect of the present invention, in a first mode 0 operation, the array antenna is arranged for communication via one antenna radiation lobe. The present invention also relates to a method for performing said communication.
    Type: Application
    Filed: January 4, 2006
    Publication date: January 8, 2009
    Inventors: Anna Barbro Engstrom, Bo Goransson, Martin Nils Johansson, Mats H. Andersson, Sven Oscar Petersson, Sven Anders Derneryd
  • Publication number: 20080293358
    Abstract: The present invention relates to a wireless communication system (C) comprising at least one base station (1) in a communication cell (2), from which base station (1) at least two essentially uncorrelated antenna radiation lobes (7, 8, 9, 10) are formed. Each antenna radiation lobe (7, 8, 9, 10) communicates a MIMO (Multiple Input Multiple Output) communication stream. The system (C) further comprises at least one repeating transmitter/receiver (repeater) (18, 19, 20, 21), which is arranged for communicating one of the MIMO communication streams to and/or from at least one UE (user equipment) (12). The present invention also relates to a repeater that is a part of the system (C), and a method for communicating at least two MIMO communication streams to and/or from at least one UE (user equipment) (12), using at least one repeater (18, 19, 20, 21).
    Type: Application
    Filed: December 8, 2005
    Publication date: November 27, 2008
    Inventors: Mats H Andersson, Bo Goransson
  • Publication number: 20080227387
    Abstract: The invention discloses a point-to-point telecommunications system comprising a first transmitter which transmits information to a first receiver via electromagnetic waves. The first transmitter transmits on a number of antenna using a first frequency on at least a first and a second of said beams, and the first and second beams contain different information. The point-to-point connection between the transmitter and the receiver is achieved by means of at least a first repeater located between the transmitter and the receiver, said first repeater being used for said first beam.
    Type: Application
    Filed: July 4, 2005
    Publication date: September 18, 2008
    Inventor: Mats H. Andersson
  • Patent number: 5553911
    Abstract: An apparatus for supporting a cab of a conventional over-the-highway truck or tractor vehicle relative to a vehicle frame which includes a pair of longitudinally extending rails and a transverse member interconnecting the rails. A pair of mounting assemblies are located near the front of the cab to resiliently and pivotally connect the cab to the rails. A pair of spaced apart spring members are located near the rear of the cab to support the cab for limited movement relative to the frame. A spaced pair of dampers extends between the cab and the frame to damp movement of the cab. The spaced dampers are located between the spring members. A centering damper is mounted between the cab and the frame to damp transverse movement of the cab. The centering damper is located between the spaced dampers.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: September 10, 1996
    Assignee: Volvo GM Heavy Truck Corporation
    Inventors: Jan-Olof Bodin, Steve L. Barnhardt, Nils B. Nilsson, Mats H. Andersson