Patents by Inventor Roee Cohen
Roee Cohen 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: 9558062Abstract: The present disclosure presents a method and an apparatus for reducing cyclic redundancy check (CRC) false detections at a user equipment (UE). For example, the method may include receiving a data packet at the UE, determining whether a state metric value for each of a plurality of vector elements of a last path metric vector of the data packet is less than or equal to a first threshold, incrementing a counter when the state metric value of a vector element of the plurality of vector elements is less than or equal to the first threshold, determining whether the counter is lower than a second threshold, and providing the data packet to an upper layer protocol entity of the UE when a CRC pass for the data packet is determined and the counter is lower than the second threshold. As such, reduced CRC false detections at a UE may be achieved.Type: GrantFiled: July 27, 2015Date of Patent: January 31, 2017Assignee: QUALCOMM IncorporatedInventors: Roee Cohen, Alexander Kleinerman
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Patent number: 9526099Abstract: Apparatus and methods include receiving one or more first signals at a user equipment (UE) during a first portion of a transmission time interval (TTI), wherein the one or more first signals are transmitted by a network to the UE using a transport format; determining the transport format upon receiving the one or more first signals and prior to a second portion of the TTI subsequent to the first portion of the TTI; and receiving one or more second signals at the UE during a second portion of the TTI.Type: GrantFiled: January 29, 2014Date of Patent: December 20, 2016Assignee: QUALCOMM IncorporatedInventors: Shashank Vishwanatha Maiya, Nate Chizgi, Roee Cohen, Harish Venkatachari, Sharif Ahsanul Matin
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Patent number: 9405616Abstract: A reliability metric is used for determining whether to prune a decoding hypothesis. For example, a reliability metric can be generated for each possible hypothesis generated during blind decoding operations. The reliability metric can then be used in a pruning process whereby a determination to prune a given hypothesis is based on whether the corresponding reliability metric is above or below a reliability metric threshold. In some aspects, the reliability metric is based on the correlation between the symbols of a hypothesis and re-encoded symbols that are based on the hypothesis, whereby the correlation is normalized using an estimated power parameter that is independent of the hypothesis. Through the use of the reliability metric, decoding may be achieved with a low probability of false passes (in the case of noise) and a low probability of missed detection (in the case of a real signal).Type: GrantFiled: May 9, 2014Date of Patent: August 2, 2016Assignee: QUALCOMM IncorporatedInventor: Roee Cohen
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Publication number: 20160026523Abstract: The present disclosure presents a method and an apparatus for reducing cyclic redundancy check (CRC) false detections at a user equipment (UE). For example, the method may include receiving a data packet at the UE, determining whether a state metric value for each of a plurality of vector elements of a last path metric vector of the data packet is less than or equal to a first threshold, incrementing a counter when the state metric value of a vector element of the plurality of vector elements is less than or equal to the first threshold, determining whether the counter is lower than a second threshold, and providing the data packet to an upper layer protocol entity of the UE when a CRC pass for the data packet is determined and the counter is lower than the second threshold. As such, reduced CRC false detections at a UE may be achieved.Type: ApplicationFiled: July 27, 2015Publication date: January 28, 2016Inventors: Roee COHEN, Alexander KLEINERMAN
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Patent number: 9167536Abstract: Methods and apparatus for improving amplitude estimation of a received signal in a wireless communication system is provided. Aspects of the methods and apparatus relate to investigating estimation of signal-to-noise (SNR) of the signal. To estimate SNR of the signal, a user equipment (UE) combines previous pilot amplitude measurements and the present pilot amplitude measurement along with received transmit power control (TPC) commands.Type: GrantFiled: October 17, 2013Date of Patent: October 20, 2015Assignee: QUALCOMM IncorporatedInventor: Roee Cohen
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Publication number: 20150149874Abstract: A reliability metric is used for determining whether to prune a decoding hypothesis. For example, a reliability metric can be generated for each possible hypothesis generated during blind decoding operations. The reliability metric can then be used in a pruning process whereby a determination to prune a given hypothesis is based on whether the corresponding reliability metric is above or below a reliability metric threshold. In some aspects, the reliability metric is based on the correlation between the symbols of a hypothesis and re-encoded symbols that are based on the hypothesis, whereby the correlation is normalized using an estimated power parameter that is independent of the hypothesis. Through the use of the reliability metric, decoding may be achieved with a low probability of false passes (in the case of noise) and a low probability of missed detection (in the case of a real signal).Type: ApplicationFiled: May 9, 2014Publication date: May 28, 2015Applicant: QUALCOMM IncorporatedInventor: Roee Cohen
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Publication number: 20150131621Abstract: A signal-to-interference target is adjusted multiple times within a transmission time interval. For example, the signal-to-interference target may be adjusted at the slot level. According to some aspects of the disclosure, the signal-to-interference target may be adjusted based on early detection of the transport format being transmitted by the network. For example, the signal-to-interference target may be quickly adjusted at each slot upon detection of the kind of transport format present during that slot. Advantageously, such an approach may reduce the transient time that it takes for the signal-to-interference target to be updated to a new transport format.Type: ApplicationFiled: April 15, 2014Publication date: May 14, 2015Applicant: QUALCOMM IncorporatedInventors: Shashank Vishwanatha Maiya, Roee Cohen, Nate Chizgi, Sharif Ahsanul Matin
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Patent number: 8995516Abstract: Access terminals are adapted to facilitate estimation of signal-to-noise ratios for received wireless transmissions. According to at least one example, a wireless communication device can receive a plurality of data symbols. The wireless communication device can determine a first estimate of a signal-to-noise ratio based on first estimates of a signal power and a noise power associated with the plurality of received data symbols. When the first estimate of the signal-to-noise ratio is below a predetermined threshold, a second estimate of the signal-to-noise ratio can be determined based on second estimates of the signal power and the noise power for the received data symbols. Other aspects, embodiments, and features are also included.Type: GrantFiled: October 8, 2013Date of Patent: March 31, 2015Assignee: QUALCOMM IncorporatedInventor: Roee Cohen
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Publication number: 20150009965Abstract: Apparatus and methods include receiving one or more first signals at a user equipment (UE) during a first portion of a transmission time interval (TTI), wherein the one or more first signals are transmitted by a network to the UE using a transport format; determining the transport format upon receiving the one or more first signals and prior to a second portion of the TTI subsequent to the first portion of the TTI; and receiving one or more second signals at the UE during a second portion of the TTI.Type: ApplicationFiled: January 29, 2014Publication date: January 8, 2015Applicant: QUALCOMM IncorporatedInventors: Shashank Vishwanatha MAIYA, Nate Chizgi, Roee Cohen, Harish Venkatachari, Sharif Ahsanul Matin
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Publication number: 20140307566Abstract: Methods and apparatus for improving amplitude estimation of a received signal in a wireless communication system is provided. Aspects of the methods and apparatus relate to investigating estimation of signal-to-noise (SNR) of the signal. To estimate SNR of the signal, a user equipment (UE) combines previous pilot amplitude measurements and the present pilot amplitude measurement along with received transmit power control (TPC) commands.Type: ApplicationFiled: October 17, 2013Publication date: October 16, 2014Applicant: Qualcomm IncorporatedInventor: Roee COHEN
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Publication number: 20140169503Abstract: Access terminals are adapted to facilitate estimation of signal-to-noise ratios for received wireless transmissions. According to at least one example, a wireless communication device can receive a plurality of data symbols. The wireless communication device can determine a first estimate of a signal-to-noise ratio based on first estimates of a signal power and a noise power associated with the plurality of received data symbols. When the first estimate of the signal-to-noise ratio is below a predetermined threshold, a second estimate of the signal-to-noise ratio can be determined based on second estimates of the signal power and the noise power for the received data symbols. Other aspects, embodiments, and features are also included.Type: ApplicationFiled: October 8, 2013Publication date: June 19, 2014Applicant: QUALCOMM IncorporatedInventor: Roee Cohen