Patents by Inventor Timo E. Roman
Timo E. Roman 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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Change of rate matching modes in presence of channel state information reference signal transmission
Patent number: 10716118Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: GrantFiled: August 28, 2018Date of Patent: July 14, 2020Assignee: Nokia Technologies OyInventors: Mieszko Chmiel, Timo E. Roman -
Change of Rate Matching Modes in Presence of Channel State Information Reference Signal Transmission
Publication number: 20190014572Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: ApplicationFiled: August 28, 2018Publication date: January 10, 2019Inventors: Mieszko CHMIEL, Timo E. ROMAN -
Change of rate matching modes in presence of channel state information reference signal transmission
Patent number: 10098124Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: GrantFiled: April 28, 2016Date of Patent: October 9, 2018Assignee: Nokia Solutions and Networks OyInventors: Mieszko Chmiel, Timo E. Roman -
Change of Rate Matching Modes in Presence of Channel State Information Reference Signal Transmission
Publication number: 20160242164Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: ApplicationFiled: April 28, 2016Publication date: August 18, 2016Inventors: Mieszko Chmiel, Timo E. ROMAN -
Change of rate matching modes in presence of channel state information reference signal transmission
Patent number: 9392605Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: GrantFiled: June 17, 2015Date of Patent: July 12, 2016Assignee: Nokia Solutions and Networks OyInventors: Mieszko Chmiel, Timo E. Roman -
Change of Rate Matching Modes in Presence of Channel State Information Reference Signal Transmission
Publication number: 20150341920Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: ApplicationFiled: June 17, 2015Publication date: November 26, 2015Inventors: Mieszko Chmiel, Timo E. Roman -
Change of rate matching modes in presence of channel state information reference signal transmission
Patent number: 9094978Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: GrantFiled: January 22, 2014Date of Patent: July 28, 2015Assignee: Nokia Solutions and Networks OyInventors: Mieszko Chmiel, Timo E. Roman -
Change of Rate Matching Modes in Presence of Channel State Information Reference Signal Transmission
Publication number: 20140161066Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: ApplicationFiled: January 22, 2014Publication date: June 12, 2014Applicant: Nokia Solutions and Networks OyInventors: Mieszko CHMIEL, Timo E. ROMAN -
Change of rate matching modes in presence of channel state information reference signal transmission
Patent number: 8743799Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: GrantFiled: June 24, 2010Date of Patent: June 3, 2014Assignee: Nokia Siemens Networks OyInventors: Mieszko Chmiel, Timo E. Roman -
Patent number: 8731001Abstract: Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions. The processor is configured to cause the apparatus to receive information relating to a propagation delay variation between at least a first transmission and a second transmission received at a user equipment. The first transmission is received from a first transmission point and the second transmission is received from a second transmission. The information relating to the propagation delay variation is evaluated and, based on the result of the evaluation, a determination is made as to whether the second transmission point is acceptable as a participant in a cooperative multi-point joint processing transmission to the user equipment.Type: GrantFiled: May 31, 2011Date of Patent: May 20, 2014Assignee: Broadcom CorporationInventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
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Patent number: 8665692Abstract: A method includes receiving signaling from a base station, where the signaling includes information descriptive of a muted resource element pattern configuration when operating in a cell that is associated with at least one multi-cell cooperation area. The method further includes making at least one measurement according to the received information for at least one of the cooperation areas for making an interference estimate and transmitting measurement results to the base station. Another method includes transmitting signaling that contains information descriptive of a muted resource element pattern configuration to a user equipment operating in a cell that is associated with at least one multi-cell cooperation area.Type: GrantFiled: December 16, 2010Date of Patent: March 4, 2014Assignee: Nokia CorporationInventors: Tommi T. Koivisto, Mihai Enescu, Timo E. Roman, Timo E. Lunttila
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Patent number: 8638867Abstract: Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions, configured. The processor is configured to cause the apparatus to determine a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmit the phase variation information for at least the first and the second transmissions.Type: GrantFiled: April 27, 2011Date of Patent: January 28, 2014Assignee: Broadcom CorporationInventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
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Publication number: 20130195275Abstract: A resource allocation for a specific user equipment (UE) is encoded using an encoding scheme that identifies a specific antenna port from among a plurality of antenna ports; and the encoded resource allocation is output to the specific antenna port for transmission to the specific UE. The UE blindly detects its control channel and determines its resource allocation by decoding the control channel using a decoding scheme that identifies a specific antenna port from among the plurality of transmit antenna ports. In various embodiments, the scheme is in scrambling or masking (using an ID of the antenna port or UE); by the order of bits when encoding, port specific mapping constellations, and adding bits that give the port index.Type: ApplicationFiled: March 27, 2012Publication date: August 1, 2013Inventors: Tommi T. KOIVISTO, Tero Kuosmanen, Timo E. Roman
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Publication number: 20130121312Abstract: Signalling information relating to Multiple Input Multiple Output MIMO channel state information characteristics that a user equipment UE determines to be highest priority for a downlink is transmitted uplink from a the UE to a node of a cellular wireless network. The UE receives an indicator from the node indicating a preferred basis of the highest priority signalling information. The UE compiles the highest priority signalling information according to the preferred basis, and sends the compiled signalling information to the node. If the UE determines that the number of MIMO layers preferred for use for the downlink is one, then signalling information is sent in different messages indicating a first and second codeword respectively, the first codeword being selected to be a closest codeword to an intended MIMO channel state information characteristic, and the second characteristic is selected to be a less close codeword.Type: ApplicationFiled: November 18, 2011Publication date: May 16, 2013Inventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
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Publication number: 20120307704Abstract: Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions. The processor is configured to cause the apparatus to receive information relating to a propagation delay variation between at least a first transmission and a second transmission received at a user equipment. The first transmission is received from a first transmission point and the second transmission is received from a second transmission. The information relating to the propagation delay variation is evaluated and, based on the result of the evaluation, a determination is made as to whether the second transmission point is acceptable as a participant in a cooperative multi-point joint processing transmission to the user equipment.Type: ApplicationFiled: May 31, 2011Publication date: December 6, 2012Inventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
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Publication number: 20120275507Abstract: Systems and techniques for communication using coordinated multi-point transmission. In one embodiment, an apparatus comprises at least one processor and a memory storing a set of computer instructions, configured. The processor is configured to cause the apparatus to determine a linear phase variation between at least first and second transmissions from first and second transmission points based at least in part on a propagation delay difference between the first and second transmissions, and transmit the phase variation information for at least the first and the second transmissions.Type: ApplicationFiled: April 27, 2011Publication date: November 1, 2012Inventors: Timo E. Roman, Tommi T. Koivisto, Mihai Enescu, Karol Schober
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Publication number: 20120155291Abstract: A method includes receiving signaling from a base station, where the signaling includes information descriptive of a muted resource element pattern configuration when operating in a cell that is associated with at least one multi-cell cooperation area. The method further includes making at least one measurement according to the received information for at least one of the cooperation areas for making an interference estimate and transmitting measurement results to the base station. Another method includes transmitting signaling that contains information descriptive of a muted resource element pattern configuration to a user equipment operating in a cell that is associated with at least one multi-cell cooperation area.Type: ApplicationFiled: December 16, 2010Publication date: June 21, 2012Inventors: Tommi T. Koivisto, Mihai Enescu, Timo E. Roman, Timo E. Lunttila
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Change of rate matching modes in presence of channel state information reference signal transmission
Publication number: 20110317657Abstract: In one aspect thereof the exemplary embodiments of this invention provide a method that includes, prior to confirmation that a network access node has correctly acquired capabilities of a user equipment, operating a user equipment with the network access node in accordance with a first rate matching mode and, only after confirmation to the user equipment that the network access node has correctly acquired capabilities of the user equipment, changing the rate matching mode to a second rate matching mode. In an embodiment the first rate matching mode comprises puncturing a downlink shared channel transmission with a set of resource elements, which may be at least one of reference symbols and muted resource elements, and the second rate matching mode comprises rate matching the downlink shared channel around those resource elements that are members of the set of resource elements. Also described are apparatus and computer readable storage medium storing program code that operate in accordance with the method.Type: ApplicationFiled: June 24, 2010Publication date: December 29, 2011Inventors: Mieszko Chmiel, Timo E. Roman -
Publication number: 20110170427Abstract: From one perspective, a fixed rank r (r>1 is an integer) is determined from received signaling; at least one codeword of rank r is selected from a codebook of antenna weights for controlling inter-cell interference between a serving cell and a neighboring cell; and the selected at least one codeword of rank-r is reported to the serving cell. From a different perspective, the fixed rank r is derived and signaled to user equipments UEs operating in a serving cell; there is received from a UE in the serving cell a report indicating the at least one rank-r codeword; and an indication of the at least one rank-r codeword is forwarded to the neighboring cell. Methods, apparatus and computer programs are detailed as well as embodiments in which different ranks are used for different neighboring cells and narrowband/wideband PMI reporting which can also be different for different neighboring cells.Type: ApplicationFiled: January 11, 2010Publication date: July 14, 2011Inventors: Tommi T. Koivisto, Mihai Enescu, Timo E. Roman, Timo E. Lunttila, Karol Schober
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Publication number: 20110085519Abstract: A method includes allocating length-2n spreading codes to reference signals contained on first and second groups of resource elements in a first physical resource block and to copies of the reference signals contained on a selected group from the first or second groups and a third group of resource elements in a second physical resource block. Each length-2n spreading code is determined using a first length-n spreading code allocated to the first group and a second length-n code allocated to the second group, or using whichever one of the first or second length-n spreading codes is allocated to the selected group and a third length-n spreading code allocated to the third group. Symbols for the reference signals and their copies are spread and transmitted on the first and second physical resource blocks.Type: ApplicationFiled: October 9, 2009Publication date: April 14, 2011Inventors: Tommi T. Koivisto, Marko Karl Juhani Lampinen, Mihai Enescu, Timo E. Roman