Patents by Inventor Yongling Wu
Yongling Wu 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: 10912002Abstract: Wireless communications systems and methods related to improving user equipment (UE) mobility performance are provided. A wireless communication device camps on a first cell operating on a first carrier frequency. The wireless communication device receives, from the first cell, cell selection priority information indicating a priority for each of a plurality of carrier frequencies. The wireless communication device evaluates each of two or more candidate cells over an evaluation time duration associated with each candidate cell, wherein an end time of the evaluation time duration of a candidate cell associated with a lower priority carrier frequency is configured to be after an end time of the evaluation time duration of a candidate cell associated with a higher priority carrier frequency. The first wireless communication device selects a second cell from the two or more candidate cells for camping based at least in part on the evaluation of the second cell.Type: GrantFiled: April 3, 2019Date of Patent: February 2, 2021Assignee: QUALCOMM IncorporatedInventors: Shanshan Wang, Aziz Gholmieh, Yongle Wu, Reza Shahidi, Gopinath Murali Chinnathambi, Raghu Narayan Challa
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Publication number: 20210014785Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of base stations that are part of a synchronization group, where at least two of the base stations in the set of base stations operate on different frequencies. In some cases, the UE may identify the set of base stations based on an indication transmitted by a serving base station for the UE. Additionally, once the synchronization group is identified, the UE may schedule synchronization signals together from the set of base stations. For example, after identifying the set of base stations, the UE may identify a measurement timing window associated with the synchronization group and measure a respective synchronization signal for each base station within the measurement timing window. Accordingly, the UE may then transmit a measurement report to the serving base station that includes the synchronization signal measurements.Type: ApplicationFiled: July 11, 2019Publication date: January 14, 2021Inventors: Chinmay Shankar Vaze, Arvind Vardarajan Santhanam, Yongle Wu, Raghu Narayan Challa
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Publication number: 20200322863Abstract: Wireless communications systems and methods related to improving user equipment (UE) mobility performance are provided. A wireless communication device camps on a first cell operating on a first carrier frequency. The wireless communication device receives, from the first cell, cell selection priority information indicating a priority for each of a plurality of carrier frequencies. The wireless communication device evaluates each of two or more candidate cells over an evaluation time duration associated with each candidate cell, wherein an end time of the evaluation time duration of a candidate cell associated with a lower priority carrier frequency is configured to be after an end time of the evaluation time duration of a candidate cell associated with a higher priority carrier frequency. The first wireless communication device selects a second cell from the two or more candidate cells for camping based at least in part on the evaluation of the second cell.Type: ApplicationFiled: April 3, 2019Publication date: October 8, 2020Inventors: Shanshan Wang, Aziz Gholmieh, Yongle Wu, Reza Shahidi, Gopinath Murali Chinnathambi, Raghu Narayan Challa
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Publication number: 20200322856Abstract: Wireless communications systems and methods related to user equipment (UE) idle mode mobility in a wireless communication network are provided. A wireless communication device establishes a network session with a wireless communication network. The wireless communication device reselects a first cell for camping, wherein the first cell is associated with the wireless communication network. The wireless communication device monitors for first system information from the first cell. The wireless communication device reselects a second cell for camping in response to a failure to receive the first system information. The second cell is associated with the wireless communication network and different from the first cell. The wireless communication device maintains the network session during the reselecting the first cell for camping and the reselecting the second cell for camping.Type: ApplicationFiled: April 3, 2019Publication date: October 8, 2020Inventors: Shanshan Wang, Yongle Wu, Gopinath Murali Chinnathambi, Daniel Amerga, Huan Xu, Karthik Venkatram, Reza Shahidi, Aziz Gholmieh, Andrew Walter Janiszewski
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Publication number: 20200314861Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block associated with a first channel number as part of a scan, wherein the synchronization signal block indicates a second channel number corresponding to a cell-defining synchronization signal block. The UE may attempt acquisition for the cell-defining synchronization signal block at an elevated priority level based at least in part on the synchronization signal block indicating the second channel number. Numerous other aspects are provided.Type: ApplicationFiled: March 29, 2019Publication date: October 1, 2020Inventors: Satashu GOEL, Arvind Vardarajan SANTHANAM, Yongle WU, Daniel AMERGA, Sindhu SATYAN, Danyang CONG, Sunitha SUNDARAM
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Publication number: 20200281005Abstract: Dynamic User Equipment (UE) beam switching for millimeter wave (mmWave) measurements in asynchronous networks is discussed in which a UE configured with a plurality of UE beams receives timing information of detected cells in an asynchronous network, and calculates, based on the timing information, a maximum offset for the detected cells indicating a timing difference between a pair of cells of the detected cells that is larger than a timing difference between any other pair of the detected cells. A UE beam switch from a UE beam to another UE beam of the plurality of beams is scheduled based on the maximum offset, which includes using the maximum offset to determine how often the UE beam switch can be performed. Other aspects and features are also claimed and described.Type: ApplicationFiled: February 28, 2019Publication date: September 3, 2020Inventors: Ting Kong, Chun-Hao Hsu, Yongle Wu, Yong Li, Jun Zhu, Raghu Narayan Challa
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Publication number: 20200187185Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may use a measurement procedure for beam detection within an existing cell. The UE perform a search procedure for a first synchronization signal block (SSB) to detect a first beam of a base station. The UE may determine a first timing offset for the first SSB based on the search procedure. The UE may estimate a second timing offset for a second SSB from the base station based on the first timing offset. The UE may perform a measurement procedure for the second SSB to detect a second beam of the base station based on the second timing offset. The UE may prune fake beams based on synchronization signals used for the measurement procedure.Type: ApplicationFiled: December 3, 2019Publication date: June 11, 2020Inventors: Jun Zhu, Yong Li, Raghu Narayan Challa, Andrea Garavaglia, Yongle Wu, Ting Kong, Alexei Yurievitch Gorokhov
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Patent number: 10624024Abstract: Methods, systems, and devices for wireless communications are described. An exemplary method includes receiving a signal corresponding to a frequency band, scanning for communications activity within the frequency band, wherein scanning for communications activity within the frequency band comprises performing a correlation calculation on samples of the signal, and determining whether to attempt a connection establishment within the frequency band based at least in part on the correlation calculation on samples of the signal. When the scanning identifies an indication of activity, a scanning device may attempt to establish a connection with a base station within the frequency band. When the scanning identifies an indication of no activity, a scanning device may refrain from attempting to establish a connection with a base station within the frequency band, and may perform the correlation-enhanced frequency scanning on a different frequency band.Type: GrantFiled: October 24, 2017Date of Patent: April 14, 2020Assignee: QUALCOMM IncorporatedInventors: Mustafa Emin Sahin, Raghu Challa, Pengkai Zhao, Parisa Cheraghi, Supratik Bhattacharjee, Yongle Wu
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Patent number: 10499255Abstract: Aspects of the present disclosure provide a plurality of discovery reference signal (DRS) search modes implemented by the user equipment (UE) during contention-based communication in an unlicensed spectrum. The plurality of DRS search modes may include a first DRS search mode (“Full search mode”), second DRS search mode (“Comb search mode”), and a third DRS search mode (“Thin search mode”). The DRS search modes may be selected by the UE based on the system requirements (e.g., tradeoffs between robustness and complexity against cycle cost). Features of the present disclosure further provide techniques for dynamically switching between the plurality of DRS search modes in order to minimize power consumption while reducing the number of cycles required to locate the DRS.Type: GrantFiled: March 27, 2018Date of Patent: December 3, 2019Assignee: QUALCOMM IncorporatedInventors: Wenshu Zhang, Chengjin Zhang, Alexei Yurievitch Gorokhov, Amir Aminzadeh Gohari, Yongle Wu, Supratik Bhattacharjee
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Patent number: 10454716Abstract: Certain aspects of the present disclosure relate to techniques for estimating a channel using soft-windowing. A user equipment (UE) may determine, based on a cyclic prefix (CP) length of a channel, a timing window for sampling reference signals transmitted on the channel, determine a set of weights to apply to samples obtained within the determined timing window, wherein each weight corresponds to a sample obtained within the determined window, and estimate the channel by applying the weights to the samples.Type: GrantFiled: December 14, 2017Date of Patent: October 22, 2019Assignee: QUALCOMM IncorporatedInventors: Yongle Wu, Pengkai Zhao, Supratik Bhattacharjee, Amir Farajidana, Wenshu Zhang, Michael Lee McCloud
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Publication number: 20190124586Abstract: Methods, systems, and devices for wireless communications are described. An exemplary method includes receiving a signal corresponding to a frequency band, scanning for communications activity within the frequency band, wherein scanning for communications activity within the frequency band comprises performing a correlation calculation on samples of the signal, and determining whether to attempt a connection establishment within the frequency band based at least in part on the correlation calculation on samples of the signal. When the scanning identifies an indication of activity, a scanning device may attempt to establish a connection with a base station within the frequency band. When the scanning identifies an indication of no activity, a scanning device may refrain from attempting to establish a connection with a base station within the frequency band, and may perform the correlation-enhanced frequency scanning on a different frequency band.Type: ApplicationFiled: October 24, 2017Publication date: April 25, 2019Inventors: Mustafa Emin Sahin, Raghu Challa, Pengkai Zhao, Parisa Cheraghi, Supratik Bhattacharjee, Yongle Wu
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Patent number: 10237801Abstract: Cell reselection for transitioning a user device from a macro cell to a small cell may be performed by comparing a first reselection candidate small cell and a second reselection candidate small cell based on reselection criteria, and selecting a final reselection candidate based on the comparison.Type: GrantFiled: January 8, 2014Date of Patent: March 19, 2019Assignee: QUALCOMM IncorporatedInventors: Yi Su, Sundaresan Tambaram Kailasam, Feilu Liu, Yongle Wu, Joshua Tennyson MacDonald, Satish Pavan Kumar Nichanametla, Uzma Khan Qazi, Aziz Gholmieh, Scott Allan Hoover, Feng Lu
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Patent number: 10178561Abstract: Examples described herein relate to enhancing data communication performance in a wireless communication network including a first subscription associated with a first radio access technology (RAT) and a second subscription associated with a second RAT, where the wireless communication device uses a same radio frequency (RF) resource to communicate over both the first RAT and the second RAT. The first RAT is used, in part, for data operations while the second RAT is used, in part, for voice operations. During idle state voice operations, the RF resource is reallocated from performing data operations to performing idle state voice operations, causing interruptions in the data operations. The wireless communication device adjusts at least one or a duration and an occurrence of the idle state voice operations to reduce the impact on the data operations.Type: GrantFiled: February 24, 2017Date of Patent: January 8, 2019Assignee: QUALCOMM IncorporationInventors: Jun Hu, Qingxin Chen, Reza Shahidi, Yongsheng Shi, Jafar Mohseni, Yongle Wu, Yong Li, Shashank Maiya, Harish Venkatachari, Shriram Swaminathan, Scott Hoover, Sumit Kumar Singh, Kiran Patil, Zhong Fan, Uzma Khan Qazi, Sundaresan Tambaram Kailasam, Sunil Kumar Gurram
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Patent number: 10122409Abstract: There is provided a communication system including a transmitting section and a receiving section which includes a plurality of receivers. The transmitting section includes a communication unit which receives a plurality of signals respectively from the plurality of receivers, and stores a plurality of time-reversed signals corresponding to the received plurality of signals with respect to the plurality of receivers, and a first conversion unit which converts, by a first factor, a plurality of information sequences to be respectively transmitted to the plurality of receivers and forward the plurality of converted information sequences to the communication unit. The communication unit generates, based on the plurality of converted information sequences, a plurality of output signals to be respectively transmitted to the plurality of receivers, each of the plurality of the output signals including a location-specific signature unique to the corresponding receiver.Type: GrantFiled: December 3, 2013Date of Patent: November 6, 2018Assignee: UNIVERSITY OF MARYLAND AT COLLEGE PARKInventors: Feng Han, Yu-Han Yang, Beibei Wang, Yongle Wu, K. J. Ray Liu
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Publication number: 20180317045Abstract: The disclosure generally relates to positioning techniques that can be used in a wireless communications network. For example, assistance data that includes predicted contents associated with messages that multiple neighboring nodes are configured to transmit at a synchronized time may be encoded and correlated with a signal received at one or more receive antennas on a user device. The correlation may be used to estimate a channel response from one or more transmit antennas at a current node that transmitted the signal to the one or more receive antennas on the user device, whereby an estimated time of arrival from the current node can be computed based at least in part on the estimated channel response.Type: ApplicationFiled: April 28, 2017Publication date: November 1, 2018Inventors: Jordan Cookman, Jie Wu, Brian Banister, Yongle Wu
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Publication number: 20180288624Abstract: Aspects of the present disclosure provide a plurality of discovery reference signal (DRS) search modes implemented by the user equipment (UE) during contention-based communication in an unlicensed spectrum. The plurality of DRS search modes may include a first DRS search mode (“Full search mode”), second DRS search mode (“Comb search mode”), and a third DRS search mode (“Thin search mode”). The DRS search modes may be selected by the UE based on the system requirements (e.g., tradeoffs between robustness and complexity against cycle cost). Features of the present disclosure further provide techniques for dynamically switching between the plurality of DRS search modes in order to minimize power consumption while reducing the number of cycles required to locate the DRS.Type: ApplicationFiled: March 27, 2018Publication date: October 4, 2018Inventors: Wenshu ZHANG, Chengjin ZHANG, Alexei Yurievitch GOROKHOV, Amir AMINZADEH GOHARI, Yongle WU, Supratik BHATTACHARJEE
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Publication number: 20180249349Abstract: Examples described herein relate to enhancing data communication performance in a wireless communication network including a first subscription associated with a first radio access technology (RAT) and a second subscription associated with a second RAT, where the wireless communication device uses a same radio frequency (RF) resource to communicate over both the first RAT and the second RAT. The first RAT is used, in part, for data operations while the second RAT is used, in part, for voice operations. During idle state voice operations, the RF resource is reallocated from performing data operations to performing idle state voice operations, causing interruptions in the data operations. The wireless communication device adjusts at least one or a duration and an occurrence of the idle state voice operations to reduce the impact on the data operations.Type: ApplicationFiled: February 24, 2017Publication date: August 30, 2018Inventors: Jun Hu, Qingxin Chen, Reza Shahidi, Yongsheng Shi, Jafar Mohseni, Yongle Wu, Yong Li, Shashank Maiya, Harish Venkatachari, Shriram Swaminathan, Scott Hoover, Sumit Kumar Singh, Kiran Patil, Zhong Fan, Uzma Khan Qazi, Sundaresan Tambaram Kailasam, Sunil Kumar Gurram
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Publication number: 20180176040Abstract: Certain aspects of the present disclosure relate to techniques for estimating a channel using soft-windowing. A user equipment (UE) may determine, based on a cyclic prefix (CP) length of a channel, a timing window for sampling reference signals transmitted on the channel, determine a set of weights to apply to samples obtained within the determined timing window, wherein each weight corresponds to a sample obtained within the determined window, and estimate the channel by applying the weights to the samples.Type: ApplicationFiled: December 14, 2017Publication date: June 21, 2018Inventors: Yongle WU, Pengkai ZHAO, Supratik BHATTACHARJEE, Amir FARAJIDANA, Wenshu ZHANG, Michael Lee MCCLOUD
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Patent number: 9986473Abstract: Certain aspects of the present disclosure relate to methods and apparatus for wireless communication, and more particularly, to methods and apparatus that utilize one or more user equipment (UE) panic states under connected discontinuous reception (C-DRX) mode in long term evolution (LTE).Type: GrantFiled: May 6, 2014Date of Patent: May 29, 2018Assignee: QUALCOMM IncorporatedInventors: Yongle Wu, Shivratna Giri Srinivasan, Won-Joon Choi, Raghu Narayan Challa, Amir Aminzadeh Gohari, Mariam Motamed, Thomas James Christol, Amit Mahajan
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Patent number: 9860804Abstract: Methods, systems, apparatuses, and devices are described for transmitting a measurement report during wireless communications. When, for example, a low-power period (e.g., CDRX OFF period) is scheduled to begin during a time defined by a measurement event timer (TTT timer), a UE may modify the low-power period. The low-power period may be modified based, at least in part on determining the low-power period of the UE will begin during a time defined by a measurement event timer, a duration of the measurement event timer, and a duration of the low-power period. Modifying the low-power period may include delaying the start of the low-power state until after transmission of the MR associated with the measurement event timer or skipping the low-power period altogether. The UE may transmit the MR based, at least in part, on the modification.Type: GrantFiled: November 10, 2014Date of Patent: January 2, 2018Assignee: QUALCOMM IncorporatedInventors: Yongle Wu, Vishu Kumar, Amit Mahajan, Udayan Murli Bhawnani, Won-Joon Choi, Shivratna Giri Srinivasan, Osama Nafeth Saleem Alrabadi, Dominique Francois Bressanelli, Marian Madan, Mohamed Khalifa, Florina Andreea Prisecaru