Patents by Inventor Mikael Lagerman

Mikael Lagerman 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: 9883356
    Abstract: Example embodiments described herein are directed towards a PTC node and wireless terminal, and corresponding methods therein, for extended PMR based services. According to some of the example embodiment, through use of a PTC node, a wireless terminal may be simultaneously registered with the public radio access based network and the PMR based network. Thus, a wireless terminal which is not directly connected (or is unable to connect to) a PMR based network may still receive messages originating from the PMR based network.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 30, 2018
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20160150382
    Abstract: Example embodiments described herein are directed towards a PTC node and wireless terminal, and corresponding methods therein, for extended PMR based services. According to some of the example embodiments, through use of a PTC node, a wireless terminal may be simultaneously registered with the public radio access based network and the PMR based network. Thus, a wireless terminal which is not directly connected (or is unable to connect to) a PMR based network may still receive messages originating from the PMR based network.
    Type: Application
    Filed: July 12, 2013
    Publication date: May 26, 2016
    Inventor: Mikael Lagerman
  • Patent number: 9167503
    Abstract: A method for letting a temporary radio base station (RBS, 140) gain and maintain control of the traffic of a targeted RBS (120) in a system (100), where RBS's transmit an identity signal and a list of candidate frequencies for use by user terminals when switching RBS. The temporary RBS (140) is positioned in or adjacent to the targeted RBS (120), and transmits on a frequency in the candidate list of the targeted RBS (120). The transmissions are at such a power level that the traffic of the targeted RBS (120) is transferred to the temporary RBS (140). The temporary RBS transmits the identity signal the RBS whose frequency the temporary RBS transmits on, and transmits a list of candidate frequencies such that user terminals whose traffic has been transferred to the temporary RBS cannot find signals with sufficient strength on any of the candidate frequencies.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: October 20, 2015
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Mikael Lagerman
  • Patent number: 8862123
    Abstract: The invention refers to a base station (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment (UE) onboard an aircraft, when at a predetermined altitude, and a terrestrial network. The invention is characterised in that the BTS is arranged to be an airborne onboard BTS comprising a screening device generating a first signal (S1) matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS also comprises a signal generator generating a third signal (S3) stronger than both the first signal (S1) and the second signal (S2), the onboard BTS arranged to establish a communication link with the UE via the third signal (S3).
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: October 14, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Mikael Lagerman
  • Publication number: 20130288669
    Abstract: The invention refers to a base station (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment (UE) onboard an aircraft, when at a predetermined altitude, and a terrestrial network. The invention is characterised in that the BTS is arranged to be an airborne onboard BTS comprising a screening device generating a first signal (S1) matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS also comprises a signal generator generating a third signal (S3) stronger than both the first signal (S1) and the second signal (S2), the onboard BTS arranged to establish a communication link with the UE via the third signal (S3).
    Type: Application
    Filed: July 1, 2013
    Publication date: October 31, 2013
    Inventor: Mikael Lagerman
  • Patent number: 8478192
    Abstract: The invention concerns a temporary radio base station, temporary RBS (140), which can gain and maintain control of the traffic to and from a targeted radio base station (120) in a wireless cellular telecommunications system (100), and a dedicated user terminal (530) for use the system. The dedicated user terminal (530) comprises an identification device being arranged to identify the temporary RBS (140) by use of unique information being at least embedded in a transmitted signal from the temporary RBS (140). The dedicated user terminal (530) is arranged to disregard the temporary RBS (140) when detected, and to choose the targeted RBS (120), or an RBS arranged to operate in a neighboring cell, in the same manner as if the temporary RBS (140) would not exist. The invention also relates to a method for the devices and a system comprising the devices.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: July 2, 2013
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20120322443
    Abstract: The invention refers to a base station (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment (UE) onboard an aircraft, when at a predetermined altitude, and a terrestrial network. The invention is characterised in that the BTS is arranged to be an airborne onboard BTS comprising a screening device generating a first signal (S1) matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS also comprises a signal generator generating a third signal (S3) stronger than both the first signal (S1) and the second signal (S2), the onboard BTS arranged to establish a communication link with the UE via the third signal (S3).
    Type: Application
    Filed: August 30, 2012
    Publication date: December 20, 2012
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20120314644
    Abstract: The invention refers to a method in a wireless data communication network (1) comprising a mobile first user equipment (UE1) and a broadcast server (BCS). The first user via equipment (UE1) communicates with a radio base station (RBS) via a first port (P1) on a first channel (CH1) for in- and outgoing broadcast traffic provided by a service provider (3) and communicates with the broadcast server (BCS) via a first client application (UCA1) comprised in the first user equipment. Based on information from the first client application (UCA1) and other client applications, the broadcast server (BCS) makes a decision whether to allow several user equipments to chare a common channel or not.
    Type: Application
    Filed: March 1, 2010
    Publication date: December 13, 2012
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Mikael Lagerman
  • Patent number: 8280372
    Abstract: The invention refers to a base station, BTS, (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment, UE, (UE) onboard an aircraft (1) being at a predetermined altitude and a terrestrial network. The invention is characterized in that the base station (BTS) is arranged to be an airborne onboard BTS (BTS) comprising a screening device (2) generating a first signal (S1) being matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS (BTS) also comprises a signal generator (3) generating a third signal (S3) being stronger than both the first signal (S1) and the second signal (S2), the onboard BTS (BTS) being arranged to establish a communication link with the UE (UE) via the third signal (S3).
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: October 2, 2012
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventor: Mikael Lagerman
  • Patent number: 8055185
    Abstract: The invention refers to a method for a screening device and a screening device (1), for a cellular communication system comprising a user equipment, UE, (UE) in a cellular network The invention is characterized in the screening device (1) is arranged to generate a pulsed first signal (S1) being matched to screen a control channel (S, F, B) in a second signal (S2) generated in the cellular network.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: November 8, 2011
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20110164603
    Abstract: A method for letting a temporary radio base station (RBS, 140) gain and maintain control of the traffic of a targeted RBS (120) in a system (100), where RBS's transmit an identity signal and a list of candidate frequencies for use by user terminals when switching RBS. The temporary RBS (140) is positioned in or adjacent to the targeted RBS (120), and transmits on a frequency in the candidate list of the targeted RBS (120). The transmissions are at such a power level that the traffic of the targeted RBS (120) is transferred to the temporary RBS (140). The temporary RBS transmits the identity signal the RBS whose frequency the temporary RBS transmits on, and transmits a list of candidate frequencies such that user terminals whose traffic has been transferred to the temporary RBS cannot find signals with sufficient strength on any of the candidate frequencies.
    Type: Application
    Filed: May 22, 2006
    Publication date: July 7, 2011
    Applicant: Telefonaktiebolaget L.M. Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20100159924
    Abstract: The invention relates to an International Mobile Subscriber Identity, IMSI, handling system (1) for a cellular telephone network. An MS (MS) comprises a first switching device (2) arranged to switch IMSI from said IMSI in use to a 5 new IMSI. The system comprises an HLR (HLR) associated with a second switching device (3) arranged to switch IMSI in the HLR (HLR) correspondingly. The first and second switching devices (2, 3) are arranged to switch IMSI at selected points in time. The second switching device (3) comprises an identifying means (4) arranged to identify the new IMSI in the 10 HLR (HLR) as the subscriber. The invention also refers to a method for an IMSI handling system.
    Type: Application
    Filed: December 21, 2006
    Publication date: June 24, 2010
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Mikael Lagerman, Hassan Alaoui, Jan Arwald, Anders Bäckman, Tony Antonius Saers
  • Publication number: 20090186618
    Abstract: The invention concerns a temporary radio base station, temporary RBS (140), which can gain and maintain control of the traffic to and from a targeted radio base station (120) in a wireless cellular telecommunications system (100), and a dedicated user terminal (530) for use the system. The dedicated user terminal (530) comprises an identification device being arranged to identify the temporary RBS (140) by use of unique information being at least embedded in a transmitted signal from the temporary RBS (140). The dedicated user terminal (530) is arranged to disregard the temporary RBS (140) when detected, and to choose the targeted RBS (120), or an RBS arranged to operate in a neighbouring cell, in the same manner as if the temporary RBS (140) would not exist. The invention also relates to a method for the devices and a system comprising the devices.
    Type: Application
    Filed: December 22, 2006
    Publication date: July 23, 2009
    Inventor: Mikael Lagerman
  • Publication number: 20090047897
    Abstract: The invention refers to a method for a screening device and a screening device (1), for a cellular communication system comprising a user equipment, UE, (UE) in a cellular network The invention is characterized in the screening device (1) is arranged to generate a pulsed first signal (S1) being matched to screen a control channel (S, F, B) in a second signal (S2) generated in the cellular network.
    Type: Application
    Filed: December 22, 2005
    Publication date: February 19, 2009
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Mikael Lagerman
  • Publication number: 20080299965
    Abstract: The invention refers to a base station, BTS, (BTS) and a method for a BTS, for a cellular communication system comprising a user equipment, UE, (UE) onboard an aircraft (1) being at a predetermined altitude and a terrestrial network. The invention is characterised in that the base station (BTS) is arranged to be an airborne onboard BTS (BTS) comprising a screening device (2) generating a first signal (S1) being matched to screen a second signal (S2) from the terrestrial network at a predetermined altitude. The onboard BTS (BTS) also comprises a signal generator (3) generating a third signal (S3) being stronger than both the first signal (S1) and the second signal (S2), the onboard BTS (BTS) being arranged to establish a communication link with the UE (UE) via the third signal (S3).
    Type: Application
    Filed: December 22, 2005
    Publication date: December 4, 2008
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventor: Mikael Lagerman
  • Publication number: 20080285503
    Abstract: The present invention relates to a device (4, 5, 6, 7, 8) adapted for transmission and reception via a satellite link (2) in a satellite communication system (3). The device (4, 5, 6, 7, 8) is further a part of a group (9, 21) of similar devices (4, 5, 6, 7, 8), where the device (4, 5, 6, 7, 8) comprises a first address (14), unique for the device (4, 5, 6, 7, 8). The device (4, 5, 6, 7, 8) further comprises at least a second address (15, 19) that is common for the group (9, 21), enabling a message (22a, 22b, 22c) sent to the group (9, 21) to be addressed to the group (9, 21). This means that a single transmission is sufficient to reach all members (4, 5, 6, 7, 8) in the group (9, 21). The present invention also relates to a satellite communications system comprising devices according to the above. The present invention also relates to a method for transmission and reception via a satellite link.
    Type: Application
    Filed: November 11, 2005
    Publication date: November 20, 2008
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Mikael Lagerman
  • Publication number: 20070265015
    Abstract: The invention refers to traffic controller in a cellular radio system comprising at least one radio base station (BTS) associated with a plurality of traffic channels (T) for serving a cell (C1), and a plurality of mobile stations (MS) within the cell. The traffic controller is arranged to delicate one of the downlink traffic channels (TCHdl1) for a selected group of mobile stations (MS) and is also arranged to delicate one of the uplink traffic channels (TCHul1) for the selected group of mobile stations (MS). Each of the mobile stations (MS1-MS3) in the selected group of mobile stations comprises communication means for inter group communication via the delicated downlink channel (TCHdl1) and the delicated uplink channel (TCHul1) only.
    Type: Application
    Filed: October 6, 2004
    Publication date: November 15, 2007
    Applicant: Telefonaktiebolaget LM Ericsson
    Inventor: Mikael Lagerman
  • Publication number: 20030105761
    Abstract: A method of managing network configuration data in a database includes storing current configuration data representing a current configuration of the network in a database as a collection of managed objects. Historical configuration data representing past configurations of the network is stored in the database as a collection of changed objects. Change parameters associated with the changes to the configuration data may additionally be stored. The database may be restored to a prior version, representing a prior configuration of the network, by restoring at least one changed object. The database may be altered to other configurations by restoring one or more changed objects. The changed objects to be restored may be selected by change parameters, such as a timestamp, operator identification, or group code. Proposed changes to the network may be modeled by substituting proposed configuration data for the current configuration data in the database.
    Type: Application
    Filed: November 21, 2001
    Publication date: June 5, 2003
    Inventor: Mikael Lagerman