Patents by Inventor Göran Klang
Göran Klang 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).
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Patent number: 11265126Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D). In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: January 24, 2020Date of Patent: March 1, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Johan Nyström, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Publication number: 20200162218Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Inventors: Johan Nystrom, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Patent number: 10560236Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: April 2, 2018Date of Patent: February 11, 2020Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Nyström, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Publication number: 20180227097Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Inventors: Johan Nystrom, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Patent number: 9935749Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviors that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: August 21, 2014Date of Patent: April 3, 2018Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Nyström, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Patent number: 9847861Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviors that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: August 21, 2014Date of Patent: December 19, 2017Assignee: Telefonaktiebolaged LM Ericsson (publ)Inventors: Johan Nyström, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Publication number: 20140362805Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: ApplicationFiled: August 21, 2014Publication date: December 11, 2014Inventors: Johan NYSTRÖM, Pàl FRENGER, Erik DAHLMAN, Svante SIGNELL, Göran KLANG
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Patent number: 8843144Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviors that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: November 23, 2010Date of Patent: September 23, 2014Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Johan Nyström, Pál Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Publication number: 20110136496Abstract: Radio resources are allocated to communication between a mobile station and a base station. The available set of radio resources may comprise radio resources primarily assigned to a neighboring cell if the 5 mobile station experience an instantaneous low level of co-channel interference from such neighboring cells. The existence of interference is preferably deduced from signal quality measurements of pilot signals. The allocation may concern uplink and/or downlink communication. Devices for performing the measurements are located in the mobile station, while devices for performing the evaluation, selection and actual allocation can be placed in different parts of the communications system-in the mobile station, in a base station or in a core network node, or as a distributed means.Type: ApplicationFiled: February 14, 2011Publication date: June 9, 2011Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Göran KLANG, Pål Frenger, Stefan Parkvall, Johan Nyström
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Publication number: 20110075625Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: ApplicationFiled: November 23, 2010Publication date: March 31, 2011Inventors: Johan Nyström, Pàl Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Patent number: 7912475Abstract: Radio resources are allocated to communication between a mobile station and a base station. The available set of radio resources may comprise radio resources primarily assigned to a neighboring cell if the 5 mobile station experience an instantaneous low level of co-channel interference from such neighboring cells. The existence of interference is preferably deduced from signal quality measurements of pilot signals. The allocation may concern uplink and/or downlink communication. Devices for performing the measurements are located in the mobile station, while devices for performing the evaluation, selection and actual allocation can be placed in different parts of the communications system—in the mobile station, in a base station or in a core network node, or as a distributed means.Type: GrantFiled: March 29, 2005Date of Patent: March 22, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Göran Klang, Pål Frenger, Stefan Parkvall, Johan Nyström
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Patent number: 7904093Abstract: A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are estimated. Each user is then assigned an area (108A-E) in resource space for its communication, which has a suitable pilot configuration. In one embodiment, the entire resource space is provided with different pilot structures in different parts (110A-D) In advance and allocation of resources to the users are then performed in order to match estimated radio conditions to the provided pilot structure. In another embodiment, allocation is performed first, and then the actual pilot structure is adapted within the allocated resource space area to suit the environmental conditions.Type: GrantFiled: December 1, 2004Date of Patent: March 8, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Nyström, Pål Frenger, Erik Dahlman, Svante Signell, Göran Klang
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Patent number: 7881260Abstract: A method for use in a cellular, FFT based multi-carrier communications system comprising N subcarriers, for allocating a set P of sub-carriers to be reserved for potential use as carriers of specific information. A number M indicating the number of sub-carriers to be allocated to a set P of sub-carriers, such that L=N/M is an integer. At least two subcarriers of the set P={(n0+m*L) mod N : 0?m<M} for the specific information, n0 being the offset of the lowest numbered subcarrier in P, the elements of P being indices, each referring to the number of a sub-carrier to be allocated. An apparatus for carrying out the method is also disclosed. The sub-channels are maximally spread in frequency, which gives maximum diversity and also enables the use of low-complexity terminals.Type: GrantFiled: December 19, 2003Date of Patent: February 1, 2011Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Johan Nyström, Göran Klang, Pal Frenger
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Patent number: 6370397Abstract: The present invention provides a search window delay tracking procedure for use in a multipath search processor of a CDMA radio receiver. A channel impulse responses is estimated for a received signal containing plural paths, each path having a corresponding path delay. A search window defines a delay profile that contains the plural paths of the received signal. A mean or average delay is calculated for the estimated channel impulse response (CIR), and an error is determined between the mean CIR delay and a desired delay position corresponding to the center of the CIR search window. An adjustment is made to reduce that error so that the center of the search window and the mean CIR delay are aligned. The error may be processed either linearly (in one embodiment) or non-linearly (in another embodiment) to minimize the error and to reduce an influence of noise.Type: GrantFiled: May 1, 1998Date of Patent: April 9, 2002Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Branislav M. Popović, Frank Georg, Matthlas Schulist, Göran Klang
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Patent number: 6363106Abstract: Incoming signals in a receiver for Direct Sequence Code Division Multiple Access systems are despread using Offset-QPSK spreading as the transmitting spreading format combined with arbitrary data modulation formats, such as BPSK and QPSK. The receiver has a pseudonoise (PN) generator for generating a unique PN sequence signal. The PN sequence signal is divided into a real and an imaginary component. The complex input signal is divided into inphase and quadrature components. The inphase and the quadrature components of the input signal are downsampled to provide either two complex samples per chip period or one complex sample per chip period. In the latter case, the downsampling instants are delayed by a quarter of a chip period. Each downsampled complex signal is correlated with the corresponding segment of the complex PN sequence signal of the receiver.Type: GrantFiled: March 16, 1998Date of Patent: March 26, 2002Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Branislav M. Popović, Göran Klang
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Patent number: 6229842Abstract: A system and method for detecting and selecting peaks in a delay power profile (DPP) signal. An adaptive threshold is used to determine valid paths in the DPP signal. The adaptive threshold is determined by measuring the signal-to-noise ratio of the DPP signal, and setting the threshold to minimize non-detections and false alarms in path estimation. To determine the signal-to-noise ratio, the system uses an iterative process wherein a raw estimate and an improved estimate are made of the noise.Type: GrantFiled: July 16, 1998Date of Patent: May 8, 2001Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Matthias Schulist, Göran Klang, Ning He