Patents by Inventor Yun H. Kim
Yun H. Kim 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: 9344986Abstract: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.Type: GrantFiled: March 17, 2014Date of Patent: May 17, 2016Assignee: Intel CorporationInventors: Yun H. Kim, Christopher P. Larosa, Bryan S. Nollett
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Patent number: 9344984Abstract: A method and user device are for communicating data from the user device by transmitting a synchronizing preamble having no timing advance, the synchronizing preamble comprising a base sequence that has been cyclically shifted by N shift index durations. The user device receives from a network station a response that indicates that a preamble was received from the user device having the base sequence cyclically shifted by N?1 shift index durations. The user device determines, based at least partially on the response, that corrective action is appropriate. The user device performs one of transmitting a modified form of synchronizing preamble, transmitting the data as a data message having a timing advance, and barring further attempts to transmit the data to the network station for a defined duration.Type: GrantFiled: March 5, 2013Date of Patent: May 17, 2016Assignee: Google Technology Holdings LLCInventors: Stephane Torres, Gregory M. Agami, Christophe Durand, Yun H. Kim, Pierre Muratory
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Publication number: 20140198757Abstract: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.Type: ApplicationFiled: March 17, 2014Publication date: July 17, 2014Inventors: Yun H. Kim, Christopher P. Larosa, Bryan S. Nollett
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Patent number: 8737551Abstract: A method and system synchronizes transmission of receive data over an asynchronous digital radio frequency interface in a wireless communication device. A timing accurate strobe (TAS) re-sampler generates, using a first timing strobe synchronized to a baseband modem clock, a second timing strobe synchronized to a radio frequency integrated circuit (RFIC) clock. The TAS re-sampler forwards the second timing strobe to the RFIC to trigger a collection of data samples and initiates a count of RFIC clock cycles. The RFIC sends the data samples to a baseband First In First Out (FIFO) buffer over the asynchronous interface. In response to the count reaching a pre-determined number of RFIC clock cycles corresponding to a fixed delay, the TAS re-sampler triggers a reading of data from the FIFO buffer. The baseband modem receives data corresponding to the collection of data samples after a fixed delay from generation of the first timing strobe.Type: GrantFiled: November 6, 2012Date of Patent: May 27, 2014Assignee: Motorola Mobility LLCInventors: Gregory M. Agami, Michael J. Carney, Yun H. Kim, Chris T. Quanbeck, Ludovic Tancerel
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Publication number: 20140126615Abstract: A method and system synchronizes transmission of receive data over an asynchronous digital radio frequency interface in a wireless communication device. A timing accurate strobe (TAS) re-sampler generates, using a first timing strobe synchronized to a baseband modem clock, a second timing strobe synchronized to a radio frequency integrated circuit (RFIC) clock. The TAS re-sampler forwards the second timing strobe to the RFIC to trigger a collection of data samples and initiates a count of RFIC clock cycles. The RFIC sends the data samples to a baseband First In First Out (FIFO) buffer over the asynchronous interface. In response to the count reaching a pre-determined number of RFIC clock cycles corresponding to a fixed delay, the TAS re-sampler triggers a reading of data from the FIFO buffer. The baseband modem receives data corresponding to the collection of data samples after a fixed delay from generation of the first timing strobe.Type: ApplicationFiled: November 6, 2012Publication date: May 8, 2014Applicant: MOTOROLA MOBILITY LLCInventors: Gregory M. Agami, Michael J. Carney, Yun H. Kim, Chris T. Quanbeck, Ludovic Tancerel
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Patent number: 8718102Abstract: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.Type: GrantFiled: December 15, 2011Date of Patent: May 6, 2014Assignee: Intel CorporationInventors: Yun H. Kim, Christopher P. Larosa, Bryan S. Nollett
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Patent number: 8693601Abstract: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-ideType: GrantFiled: January 3, 2012Date of Patent: April 8, 2014Assignee: Intel CorporationInventors: Victor Adut, Gregory M. Agami, Yun H. Kim, Wei Chuan Ma
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Publication number: 20130235797Abstract: A method and user device are for communicating data from the user device by transmitting a synchronizing preamble having no timing advance, the synchronizing preamble comprising a base sequence that has been cyclically shifted by N shift index durations. The user device receives from a network station a response that indicates that a preamble was received from the user device having the base sequence cyclically shifted by N?1 shift index durations. The user device determines, based at least partially on the response, that corrective action is appropriate. The user device performs one of transmitting a modified form of synchronizing preamble, transmitting the data as a data message having a timing advance, and barring further attempts to transmit the data to the network station for a defined duration.Type: ApplicationFiled: March 5, 2013Publication date: September 12, 2013Applicant: MOTOROLA MOBILITY LLCInventors: Stephane Torres, Gregory M. Agami, Christophe Durand, Yun H. Kim, Pierre Muratory
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Publication number: 20130170531Abstract: A system includes a polyphase multirate filter and a controller which, responsive to detecting a data stream: measures a current phase relationship between a current resampling filter input clock signal and a current multirate output clock signal; identifies, based on a mapping of the measured phase relationship within a pre-generated quantized mapping table, an initial polyphase filter coefficient index corresponding to the measured phase relationship; selects, based on the initial polyphase filter coefficient index identified, a corresponding polyphase filter component from within the multirate filter; configures the multirate filter to pass data from the data stream through the corresponding polyphase filter component to generate an initial output data sample; updates the initial polyphase filter coefficient index to a calculated next polyphase filter coefficient index value, in response to a request for generation of a next output data sample; and self-corrects the multirate filter responsive to a pre-ideType: ApplicationFiled: January 3, 2012Publication date: July 4, 2013Applicant: MOTOROLA MOBILITY, INC.Inventors: Victor Adut, Gregory M. Agami, Yun H. Kim, Wei Chuan Ma
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Publication number: 20130156018Abstract: A method that implements a timing advance for an uplink communication from a user equipment (UE) comprises: selecting at least one subframe; reducing a duration of at least one selected symbol of each of the at least one subframe to generate at least one reduced duration subframe; replacing a remaining portion of payload data of each of the at least one selected symbol with a pre-selected replacement value; by-passing each of the at least one selected symbol during pre-transmission processing of the at least one reduced duration subframe; processing any remaining symbols of the at least one reduced duration subframe, such that a processing time of the remaining symbols of the at least one reduced duration subframe is reduced by at least the value of the timing advance; and transmitting the at least one reduced duration subframe via the uplink communication to the base station.Type: ApplicationFiled: December 15, 2011Publication date: June 20, 2013Applicant: MOTOROLA MOBILITY, INC.Inventors: Yun H. Kim, Christopher P. Larosa, Bryan S. Nollett