Patents by Inventor Harald Kallin

Harald Kallin 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: 8041353
    Abstract: The present application discloses systems and methods for automatically adding a unique identifier associated with a cell to a neighbor cell list associated with another cell. In some embodiments, the method includes: selecting a particular mobile terminal from a set of mobile terminals; instructing the particular mobile terminal to obtain and report the unique identifier; receiving from the particular mobile terminal the unique identifier; and adding the unique identifier to the neighbor cell list, wherein the step of selecting the particular mobile terminal from the set of mobile terminals comprises determining which of the mobile terminals in the set appears to have a relatively high probability of obtaining the unique identifier within a certain window of time and selecting that mobile terminal.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: October 18, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Muhammad Kazmi, Walter Müller, Vera Vukajlovic, Bengt Lindoff, Martin Israelsson, Harald Kallin
  • Publication number: 20110188473
    Abstract: The present invention relates to a cellular communications network and in particular to the problem of identifying cells for neighbor lists, or handover candidates when the cells are identified by a limited number of non-unique identities. The present invention includes a method for a radio base station, wherein the base station receives reports from one or more terminals in neighbor cells quality and non-unique identities. The match is sought in a neighbor cell list non-unique identity with a unique cell identity. If the match cannot be made without ambiguity, the base station causes the terminal to detect the unique cell identity. If the reason for the ambiguity is the particular cell is not included in the neighbor cell list it is included when its unique identity has been established. The uniquely identified cell is used if it is determined to perform a handover.
    Type: Application
    Filed: April 12, 2011
    Publication date: August 4, 2011
    Inventors: Johan Moe, Harald Kallin
  • Patent number: 7957743
    Abstract: The present invention relates to a cellular communications network and in particular to the problem of identifying cells for neighbor lists, or handover candidates when the cells are identified by a limited number of non-unique identities. The present invention includes a method for a radio base station, wherein the base station receives reports from one or more terminals in neighbor cells quality and non-unique identities. The match is sought in a neighbor cell list non-unique identity with a unique cell identity. If the match cannot be made without ambiguity, the base station causes the terminal to detect the unique cell identity. If the reason for the ambiguity is the particular cell is not included in the neighbor cell list it is included when its unique identity has been established. The uniquely identified cell is used if it is determined to perform a handover.
    Type: Grant
    Filed: July 5, 2007
    Date of Patent: June 7, 2011
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Johan Moe, Harald Kallin
  • Publication number: 20110128862
    Abstract: A device detects an overload in a serving cell of a wireless network based on information associated with the serving cell, and determines, when the overload in the serving cell is detected, user equipment in the serving cell that are candidates to move to a target cell of the wireless network based on calculated user throughputs of user equipment in the serving cell. The device also selects one or more of the candidate user equipment to move to the target cell, and moves the selected user equipment to the target cell.
    Type: Application
    Filed: November 30, 2009
    Publication date: June 2, 2011
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON
    Inventors: Harald KALLIN, Birgitta OLIN
  • Publication number: 20100331025
    Abstract: In a Long Term Evolution (LTE) cellular radio system method of selecting a physical cell id (PCI) of a LTE cell is obtained by reporting PCIs of neighbors and also a parameter indicating each neighboring cell's relevance also termed visibility to the cell. A new cell added in a cellular radio, system can then make an improved selection of a PCI already at the very first neighbor relation establishment; even if all available PCIs are already used in the vicinity.
    Type: Application
    Filed: March 19, 2009
    Publication date: December 30, 2010
    Inventors: Harald Kallin, Johan Moe
  • Publication number: 20100216453
    Abstract: A device receives information associated with multiple cells, and determines a priority for each of the multiple cells based on the received information. The device also assigns each of the determined priorities to a corresponding one of the multiple cells, detects an outage associated with one of the multiple cells, and provides a temporary service to the one of the multiple cells from one or more adjacent cells with priorities less than or equal to the priority assigned to the one of the multiple cells.
    Type: Application
    Filed: February 20, 2009
    Publication date: August 26, 2010
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON
    Inventors: Harald KALLIN, Johan Moe
  • Publication number: 20100146274
    Abstract: A module (2) for integrity protection of messages transmitted from a mobile software defined radio (SDR) terminal (1), the module provided with a confined cryptographic key K and arranged to receive loaded SDR-code. The module derives an integrity protecting key Rk from at least said cryptographic key K, and provides a periodic integrity protection on-line of generated messages using said key integrity protecting key Rk, and the integrity of said messages is verified by an integrity checking node (10) of the access network.
    Type: Application
    Filed: June 18, 2007
    Publication date: June 10, 2010
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Mats Naslund, Magnus Almgren, Harald Kallin, Goran Selander
  • Publication number: 20100069071
    Abstract: An object of the present invention is to provide a mechanism for handling a handover in a more efficient way. The invention relates to a method in a mobility controller (180) in a radio access network for preparing a handover.
    Type: Application
    Filed: July 3, 2006
    Publication date: March 18, 2010
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Arne Simonsson, Anders Furuskar, Harald Kallin, Magnus Lindstrom, Walter Muller
  • Publication number: 20100009686
    Abstract: The present invention relates to a method and an arrangement for handling neighbouring cell lists when a new radio base station (15e) is introduced into a communication network, said neighbouring cell lists being used for facilitating handover of one or more user equipments moving between cells (A, B, C, E), each being served by a radio base station (15a-c) in said communication network, and performing measurements upon which said neighbouring cell lists are based. The new radio base station (15e) is initially turned on on a low output power, whereby said user equipments are given an opportunity to detect said new radio base station (15e) and update neighbouring cell lists of radio base stations (15a-c) surrounding said new radio base station (15e) and also to create a neighbouring cell lists for said new radio base station (15e), without having to make a handover to said new radio base station (15e).
    Type: Application
    Filed: February 9, 2007
    Publication date: January 14, 2010
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Harald Kallin
  • Publication number: 20090191862
    Abstract: In one of its aspects the technology concerns a method of operating a telecommunications system comprising a serving radio base station and a candidate radio base station. The serving radio base station comprises a radio base station to which a wireless mobile station provides measurement reports. The serving radio base station and the candidate radio base station are different with respect to at least one of frequency and radio access technology. The method comprises the serving radio base station allowing the mobile station to obtain information broadcasted by the candidate radio base station. The information is either information for locating Cell Global Identity (CGI) of the candidate radio base station or the Cell Global Identity (CGI) itself of the radio base station. The mobile station obtains the information from the candidate radio base station during at least one reading gap.
    Type: Application
    Filed: December 10, 2008
    Publication date: July 30, 2009
    Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Mehdi AMIRIJOO, PAL FRENGER, Fredrik GUNNARSSON, Harald KALLIN, Johan MOE, Kristina ZETTERBERG
  • Publication number: 20090176490
    Abstract: The present application discloses systems and methods for automatically adding a unique identifier associated with a cell to a neighbor cell list associated with another cell. In some embodiments, the method includes: selecting a particular mobile terminal from a set of mobile terminals; instructing the particular mobile terminal to obtain and report the unique identifier; receiving from the particular mobile terminal the unique identifier; and adding the unique identifier to the neighbor cell list, wherein the step of selecting the particular mobile terminal from the set of mobile terminals comprises determining which of the mobile terminals in the set appears to have a relatively high probability of obtaining the unique identifier within a certain window of time and selecting that mobile terminal.
    Type: Application
    Filed: January 6, 2009
    Publication date: July 9, 2009
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Muhammad KAZMI, Walter MULLER, Vera VUKAJLOVIC, Bengt LINDOFF, Martin ISRAELSSON, Harald KALLIN
  • Publication number: 20080207207
    Abstract: The present invention relates to a cellular communications network and in particular to the problem of identifying cells for neighbor lists, or handover candidates when the cells are identified by a limited number of non-unique identities. The present invention includes a method for a radio base station, wherein the base station receives reports from one or more terminals in neighbor cells quality and non-unique identities. The match is sought in a neighbor cell list non-unique identity with a unique cell identity. If the match cannot be made without ambiguity, the base station causes the terminal to detect the unique cell identity. If the reason for the ambiguity is the particular cell is not included in the neighbor cell list it is included when its unique identity has been established. The uniquely identified cell is used if it is determined to perform a handover.
    Type: Application
    Filed: July 5, 2007
    Publication date: August 28, 2008
    Inventors: Johan Moe, Harald Kallin
  • Publication number: 20070297399
    Abstract: In a multi-access system, an access selection principle is achieved by selecting a signal strength threshold level based on a determined load level (ULOCAL) in a first access network. A new user in an area commonly covered by more than one access network attempts to allocate to the first access network if an experienced signal strength exceeds the signal strength threshold level. Communication utility can preferably be maximised or at least be taken into account by using suitable load level dependencies. By increasing the threshold when the load level approaches the capacity limit, a completely filled first access network is avoided. This gives an opportunity to let particularly well-suited users still have access to the first access network. At the same time, since the preferred access is decided before the actual access attempt, control signalling can be significantly reduced, even at very high traffic loads.
    Type: Application
    Filed: January 13, 2005
    Publication date: December 27, 2007
    Applicant: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Mikael Prytz, Anders Furuskar, Jonas Pettersson, Arne Simonsson, Harald Kallin
  • Patent number: 6466797
    Abstract: In a mobile telecommunication system the transmission quality is dependent on a wide range of radio conditions. A method for extracting a useful estimation of the radio environment of a mobile station in communication in order to predict how the radio conditions will change in the near future for a considered mobile station in the near future. A measurement report is sent from the mobile station to the base station. The quality measure in the measurement report is filtered over the area by a smoothing filter (220), and then processed through an updating filter (230) resulting in a time varying map (240). Several maps are classified (260). Classified data are grouped (270) resulting in the final map, which is stored in a database (280). The final map may be used to enhance the performance of radio network algorithms.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: October 15, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Magnus Frodigh, Magnus Almgren, Christer Johansson, Mats Halvarsson, Harald Kallin
  • Patent number: 6405036
    Abstract: A method of compiling transmitter-to-receiver relationships in a radio system is disclosed. The radio system includes at least two receivers (B48, B42) and at least one transmitter (MS1) located in at least one radio coverage area (C42) of the receivers (B42). The method for a single transmitter (MS1) includes the steps of: first, sending a signal (ARM) having known power (Put) on a transmission channel allocated to the transmitter (MS1). Next, in at least one of the receivers (B48, B42), the power received (S48, S42) from the transmitted signal (2, ACCESS) is measured. The transmitted signal is guaranteed to be a solitary signal upon reception. The amplification (g{circumflex over ( )}48, g{circumflex over ( )}42) of the signal (ARM) received in the receiver is then calculated. Finally, the calculated amplification (g{circumflex over ( )}48, g{circumflex over ( )}42) is stored in a storage location in the radio system.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: June 11, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: K. Magnus Almgren, Harald Kallin
  • Patent number: 6112082
    Abstract: The present invention relates to a method of compiling transmitter-to-receiver relationships in a radio system. The radio system includes at least two receivers (B48, B42) and at least one transmitter (MS1) located in at least one radio coverage area (C42) of the receivers (B42). The method for a single transmitter (MS1) comprises the steps of:sending a signal (ARM) having known power (Put) on a transmission channel allocated to said transmitter (MS1);measuring in at least one of the receivers (B48, B42) the power received (S48, S42) from the transmitted signal (2, ACCESS), it being guaranteed that the signal will be a solitary signal upon reception;calculating the amplification (g48, g42) of the signal (ARM) received in the receiver; andstoring the calculated amplification (g48, g42) in a storage location in the radio system.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: August 29, 2000
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: K. Magnus Almgren, Harald Kallin, Szerker Magnusson
  • Patent number: 6058308
    Abstract: Apparatus, and an associated method, for adaptively selecting a paging area throughout which to page a mobile terminal. A record is maintained, indicative of the position where a mobile terminal was located when last-accessing the network infrastructure of a communication system in which the mobile terminal is operable. When a page is to be broadcast to the mobile terminal, the record is accessed, and the paging area throughout which the page is broadcast is adaptively selected responsive thereto.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: May 2, 2000
    Assignee: Telefonaktiebolaget L M Ericsson
    Inventors: Harald Kallin, Walter Ghisler
  • Patent number: 5875399
    Abstract: An analogue mobile telesystem has traffic channel cells (C1), each of which includes a base station (A-G). These base stations handle combined control channels (PAC) for paging a mobile station (MS), and also access channels (AC) for establishing connections to or from the mobile station (MS). The mobile station has information concerning the frequencies of all of the access channels and the connections are established on duplex traffic channels (TC). The geographical area covered by respective traffic channel cells (C1) is determined by virtue of enabling all traffic channels (TC) within this area to be used for predetermined, common purposes. Each of the traffic channel cells (C1) has at least two access channels (PAC, AC) spaced apart at a desired frequency distance and having the same radio coverage as the traffic channels (TC). When desiring access, the mobile station (MS) scans the strength or power of all access channels on two separate occasions at a mutual spacing of 20 milliseconds.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: February 23, 1999
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Harald Kallin, Anneli Hamill-Keays, Francine Laurendeau, John Hayes
  • Patent number: 5745860
    Abstract: A method and system of transmitting and receiving data in a mobile telecommunications system which reduces power consumption in mobile stations operating within the system. Mobile stations are divided into a plurality of sleep groups and a sleep message, which is transmitted in the control channel Overhead Message Train (OMT) as a Global Action Overhead Message (GAOM) is introduced. The bits of the sleep message contain data fields which indicate to mobile stations in each of the sleep groups when to monitor the control channel on which the sleep message was transmitted.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: April 28, 1998
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventor: Harald Kallin
  • Patent number: 5701592
    Abstract: A method and system for controlling overhead information transmission in a radicommunication system is described. By desynchronizing information trasmitted in two streams on a control channel, loads on the reverse control channel are more evenly distributed to minimize overload situations. Similarly, blocked calls can be prevented by judicious transmission timing of control filler messages relative to the overhead message trains. The relative timing of various registration parameters is also described to reduce extraneous registrations.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: December 23, 1997
    Assignee: Telefonaktiebolaget LM Ericsson
    Inventors: Harald Kallin, Roland Bodin