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).
-
Publication number: 20120164955Abstract: In a method and an apparatus for determining when a cell of a cellular radio system can enter a discontinuous transmission mode is provided. By evaluating qualities from both the cell and neighboring cells for a number of positions and calculating a statistically expected quality distribution of the evaluated qualities conditioned on that certain cells are in discontinuous transmission mode it is possible to generate a distribution which can be compared with at least one requirement thresholds. Based on the comparison it is possible to determine if first cell can use discontinuous transmission mode and still fulfill the requirements.Type: ApplicationFiled: September 10, 2009Publication date: June 28, 2012Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mehdi Amirijoo, Pål Frenger, Harald Kallin, Johan Moe, Kristina Zetterberg
-
Publication number: 20120064897Abstract: A telecommunications system comprises a serving radio base station and a candidate radio base station which are different with respect to at least one of frequency and radio access technology. The serving radio base station comprises a radio base station to which a wireless mobile station provides measurement reports. A 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. The reading gap is a time period in which the mobile station does not receive information from the serving radio base station.Type: ApplicationFiled: October 26, 2011Publication date: March 15, 2012Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mehdi Amirijoo, Pål Frenger, Fredrik Gunnarsson, Harald Kallin, Johan Moe, Kristina Zetterberg
-
Patent number: 8107950Abstract: 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: GrantFiled: December 10, 2008Date of Patent: January 31, 2012Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Mehdi Amirijoo, Pål Frenger, Fredrik Gunnarsson, Harald Kallin, Johan Moe, Kristina Zetterberg
-
Patent number: 8041353Abstract: 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: GrantFiled: January 6, 2009Date of Patent: October 18, 2011Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Muhammad Kazmi, Walter Müller, Vera Vukajlovic, Bengt Lindoff, Martin Israelsson, Harald Kallin
-
Publication number: 20110188473Abstract: 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: ApplicationFiled: April 12, 2011Publication date: August 4, 2011Inventors: Johan Moe, Harald Kallin
-
Patent number: 7957743Abstract: 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: GrantFiled: July 5, 2007Date of Patent: June 7, 2011Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Johan Moe, Harald Kallin
-
Publication number: 20110128862Abstract: 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: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Applicant: TELEFONAKTIEBOLAGET L M ERICSSONInventors: Harald KALLIN, Birgitta OLIN
-
Publication number: 20100331025Abstract: 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: ApplicationFiled: March 19, 2009Publication date: December 30, 2010Inventors: Harald Kallin, Johan Moe
-
Publication number: 20100216453Abstract: 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: ApplicationFiled: February 20, 2009Publication date: August 26, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSONInventors: Harald KALLIN, Johan Moe
-
Publication number: 20100146274Abstract: 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: ApplicationFiled: June 18, 2007Publication date: June 10, 2010Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Mats Naslund, Magnus Almgren, Harald Kallin, Goran Selander
-
Publication number: 20100069071Abstract: 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: ApplicationFiled: July 3, 2006Publication date: March 18, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Arne Simonsson, Anders Furuskar, Harald Kallin, Magnus Lindstrom, Walter Muller
-
Publication number: 20100009686Abstract: 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: ApplicationFiled: February 9, 2007Publication date: January 14, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Harald Kallin
-
Publication number: 20090191862Abstract: 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: ApplicationFiled: December 10, 2008Publication date: July 30, 2009Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mehdi AMIRIJOO, PAL FRENGER, Fredrik GUNNARSSON, Harald KALLIN, Johan MOE, Kristina ZETTERBERG
-
Publication number: 20090176490Abstract: 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: ApplicationFiled: January 6, 2009Publication date: July 9, 2009Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Muhammad KAZMI, Walter MULLER, Vera VUKAJLOVIC, Bengt LINDOFF, Martin ISRAELSSON, Harald KALLIN
-
Publication number: 20080207207Abstract: 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: ApplicationFiled: July 5, 2007Publication date: August 28, 2008Inventors: Johan Moe, Harald Kallin
-
Publication number: 20070297399Abstract: 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: ApplicationFiled: January 13, 2005Publication date: December 27, 2007Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Mikael Prytz, Anders Furuskar, Jonas Pettersson, Arne Simonsson, Harald Kallin
-
Patent number: 6466797Abstract: 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: GrantFiled: November 16, 1999Date of Patent: October 15, 2002Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Magnus Frodigh, Magnus Almgren, Christer Johansson, Mats Halvarsson, Harald Kallin
-
Patent number: 6405036Abstract: 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: GrantFiled: September 29, 1997Date of Patent: June 11, 2002Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: K. Magnus Almgren, Harald Kallin
-
Patent number: 6112082Abstract: 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: GrantFiled: September 29, 1998Date of Patent: August 29, 2000Assignee: Telefonaktiebolaget LM EricssonInventors: K. Magnus Almgren, Harald Kallin, Szerker Magnusson
-
Patent number: 6058308Abstract: 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: GrantFiled: February 18, 1997Date of Patent: May 2, 2000Assignee: Telefonaktiebolaget L M EricssonInventors: Harald Kallin, Walter Ghisler