Patents by Inventor Choo Chiap CHIAU
Choo Chiap CHIAU 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: 9036727Abstract: A precoding codebook matrix/vector of length 2L is generated by the selection of two matrices/vectors, each from one of a predetermined set of L×L matrices and multiplying each column of one of the matrices/vectors by a complex coefficient.Type: GrantFiled: February 11, 2011Date of Patent: May 19, 2015Assignee: Koninklijke Philips N.V.Inventors: Milos Tesanovic, Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20150065118Abstract: A method for communicating in a mobile communications network including a primary station communicating with at least one secondary station comprising communication means for communicating with a primary station, the method comprising the step (a) of the secondary station signaling at least one preferred operating profile out of a plurality of available operating profiles in response to an event.Type: ApplicationFiled: November 11, 2014Publication date: March 5, 2015Inventors: Robert James DAVIES, TImothy James MOULSLEY, Choo Chiap CHIAU
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Patent number: 8885746Abstract: The present invention relates to a method for operating a primary station comprising a transceiver for communicating with a plurality of secondary stations, the transceiver including at least two antennas, the method comprising the primary station transmitting to a secondary station for a single spatial channel at least one first set of reference symbols with a first antenna and at least one second set of reference symbols with a second antenna, the second set of reference symbols being orthogonal to the first set of reference symbols.Type: GrantFiled: October 1, 2010Date of Patent: November 11, 2014Assignees: Koninklijke Philips N.V., Sharp Kabushiki KaishaInventors: Timothy James Moulsley, Choo Chiap Chiau, Robert James Davies
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Patent number: 8886173Abstract: The invention relates to a method for operating a secondary station (110a, 110b), said secondary station (110a, 110b) comprising communication means for communicating with a primary station (100), the method comprising the step (a) of the secondary station (110a, 110b) signaling at least one preferred operating profile (S205) out of a plurality of available operating profiles in response to an event (S204).Type: GrantFiled: April 28, 2011Date of Patent: November 11, 2014Assignee: Koninklijke Philips N.V.Inventors: Robert James Davies, Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20140241291Abstract: In a method for operating a secondary station in a network, the secondary station: controlling a transceiver configured for simultaneously receiving transmissions from a first primary station controlling a first cell and at least one second primary station controlling a second cell; selecting a first precoding matrix for the first cell out of a first set of precoding matrices for the first cell; selecting, depending on the first precoding matrix, in accordance with a precoding scheme, a subset out of a second set of precoding matrices for the second cell, the subset comprising at least one precoding matrix for the second cell; selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices; transmitting a first and second indicator representative of the respective first and second precoding matrix; wherein the second precoding matrix is based on the value of the first indicator, so that the amount of data used for transmitting the second indicator is lessType: ApplicationFiled: May 7, 2014Publication date: August 28, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20140044209Abstract: The present invention relates to a method for operating a secondary station in a network, the secondary station comprising a transceiver adapted for simultaneously receiving transmissions from a primary station controlling a first cell and at least one primary station controlling a second cell, the method comprising the secondary station (a) selecting a first precoding matrix for the first cell out a primary set of precoding matrices for the first cell, (b) selecting a subset of at least one precoding matrix for the at least one second cell in dependence on the first precoding matrix, out of a set of subsets of precoding matrices for the second cell, (c) selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices for the second cell, (d) transmitting a first indicator representative of the first precoding matrix.Type: ApplicationFiled: October 15, 2013Publication date: February 13, 2014Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Timothy James Moulsley, Choo Chiap Chiau
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Patent number: 8634779Abstract: The present invention relates to a method for operating a secondary station in a network, the secondary station comprising a transceiver adapted for simultaneously receiving transmissions from a primary station controlling a first cell and at least one primary station controlling a second cell, the method comprising the secondary station (a) selecting a first precoding matrix for the first cell out of a primary set of precoding matrices for the first cell, (b) selecting a subset of at least one precoding matrix for the at least one second cell in dependence on the first precoding matrix, out of a set of subsets of precoding matrices for the second cell, (c) selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices for the second cell, (d) transmitting a first indicator representative of the first precoding matrix.Type: GrantFiled: October 1, 2010Date of Patent: January 21, 2014Assignees: Koninklijke Philips N.V., Sharp Kabushiki KaishaInventors: Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20130102342Abstract: The present invention relates to a method for operating a communication system, said communication system comprising a primary and at least one secondary station, wherein the primary station selects a transmission mode from a set of at least two transmission modes for communicating with the secondary station and wherein the secondary station infers the selected transmission mode based on at least one control channel characteristic.Type: ApplicationFiled: January 6, 2011Publication date: April 25, 2013Applicants: SHARP KABUSHIKI KAISHA, KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Milos Tesanovic, Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20130053044Abstract: The invention relates to a method for operating a secondary station (110a, 110b), said secondary station (110a, 110b) comprising communication means for communicating with a primary station (100), the method comprising the step (a) of the secondary station (110a, 110b) signaling at least one preferred operating profile (S205) out of a plurality of available operating profiles in response to an event (S204).Type: ApplicationFiled: April 28, 2011Publication date: February 28, 2013Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Robert James Davies, Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20120314792Abstract: A precoding codebook matrix/vector of length 2L is generated by the selection of two matrices/vectors, each from one of a predetermined set of L×L matrices and multiplying each column of one of the matrices/vectors by a complex coefficient.Type: ApplicationFiled: February 11, 2011Publication date: December 13, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Milos Tesanovic, Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20120113936Abstract: The present invention relates to a method or communicating between a primary station and a plurality of secondary stations, comprising the primary station providing a plurality of resource sets, the primary station configuring a secondary station to search for a control channel on at least one of a plurality of search spaces each corresponding to a resource set, wherein at least part of one of the search spaces is used to transmit a control message to a secondary station, the control message being indicative of a resource allocated to the secondary station for transmitting to the primary station or receiving from the primary station data, and wherein the secondary station deduces from the part of the search space used for transmitting the control message an indication of the resource set from the plurality of resource sets within which the allocated resource is located.Type: ApplicationFiled: June 15, 2010Publication date: May 10, 2012Applicants: SHARP KABUSHIKI KAISHA, KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Timothy Moulsley, Choo Chiap Chiau, Milos Tesanovic
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Publication number: 20120099674Abstract: The present invention relates to a method for communicating in a network, the network comprising at least a first cell and a second cell including respectively a first primary station having a first antenna array dedicated to the first cell and a second primary station having a second antenna array dedicated to the second cell, for communicating with a plurality of secondary stations, the method comprising the step of (a) providing with a co-operative beamforming transmission from the first and second primary stations to at least one first secondary station, wherein step (a) includes (a1) the first secondary station signaling at least one channel matrix to at least one of the first and second primary stations, and (a2) the first and second primary stations applying a precoding matrix across both the first antenna array and the second antenna array, and wherein the precoding matrix comprises a first vector for the first cell and a second vector for the second cell, the precoding matrix being based on the at leType: ApplicationFiled: June 14, 2010Publication date: April 26, 2012Applicants: SHARP KABUSHIKI KAISHA, KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Timothy Moulsley, Choo Chiap Chiau
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Publication number: 20110085587Abstract: The present invention relates to a method for operating a primary station comprising a transceiver for communicating with a plurality of secondary stations, said transceiver including at least two antennas, the method comprising the primary station transmitting to a secondary station for a single spatial channel at least one first set of reference symbols with a first antenna and at least one second set of reference symbols with a second antenna, the second set of reference symbols being orthogonal to the first set of reference symbols.Type: ApplicationFiled: October 1, 2010Publication date: April 14, 2011Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V., SHARP KABUSHIKI KAISHAInventors: Timothy James Moulsley, Choo Chiap Chiau, Robert James Davies
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Publication number: 20110081901Abstract: The present invention relates to a method for operating a secondary station in a network, the secondary station comprising a transceiver adapted for simultaneously receiving transmissions from a primary station controlling a first cell and at least one primary station controlling a second cell, the method comprising the secondary station (a) selecting a first precoding matrix for the first cell out a primary set of precoding matrices for the first cell, (b) selecting a subset of at least one precoding matrix for the at least one second cell in dependence on the first precoding matrix, out of a set of subsets of precoding matrices for the second cell, (c) selecting a second precoding matrix for the at least one second cell out of the selected subset of precoding matrices for the second cell, (d) transmitting a first indicator representative of the first precoding matrix.Type: ApplicationFiled: October 1, 2010Publication date: April 7, 2011Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V., SHARP KABUSHIKI KAISHAInventors: Timothy James Moulsley, Choo Chiap Chiau
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Publication number: 20110045859Abstract: The present invention relates to a secondary station comprising means for communicating with at least one primary station, the secondary station comprising means for receiving from the primary station a subset of reference symbols selected out a set of possible reference symbols, the reference symbols of the subset being associated with a spatial channel, wherein a transmission characteristic of the subset of reference symbols depends on the spatial channel.Type: ApplicationFiled: August 18, 2010Publication date: February 24, 2011Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V., SHARP KABUSHIKI KAISHAInventors: Timothy James MOULSLEY, Milos TESANOVIC, Choo Chiap CHIAU, Robert James DAVIES
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Publication number: 20110044187Abstract: The present invention relates to a method for operating a secondary station comprising means for communicating with a primary station, the method comprising receiving from the primary station an interference status report, said interference status report comprising an spatial indication being representative of a spatial characteristic of the interference, measuring channel characteristics on reference symbols, and interpreting the measured channel characteristics with help of the interference status report.Type: ApplicationFiled: August 18, 2010Publication date: February 24, 2011Applicants: KONINKLIJKE PHILIPS ELECTRONICS N.V., SHARP KABUSHIKI KAISHAInventors: Timothy James MOULSLEY, Milos TESANOVIC, Choo Chiap CHIAU, Robert James DAVIES