Patents by Inventor An-Swol Clement Hu
An-Swol Clement Hu 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).
-
Patent number: 9918305Abstract: Methods and apparatus for decoding system information include determining a maximum repetition rate duration based at least in part on a master information block (MIB). The methods and apparatus further include generating a distributed system information block (SIB) decoding scheme for allocating radio frequency resources between a first subscriber identity module (SIM) and a second SIM. In some aspects, the distributed SIB decoding scheme includes a partitioned SIB decoding schedule for the maximum repetition rate duration and based at least in part on a continuous SIB decoding period. Additionally, the methods and apparatus include attempting to decode one or more SIBs during the maximum repetition rate duration according to the distributed SIB decoding scheme.Type: GrantFiled: July 21, 2014Date of Patent: March 13, 2018Assignee: QUALCOMM IncorporatedInventors: An-Swol Clement Hu, Jittra Jootar
-
Patent number: 9749946Abstract: The present disclosure presents a method and apparatus for improved reselection during mode transitions at a user equipment (UE). For example, the disclosure presents a method for identifying that a user equipment (UE) has started switching from a first priority scheduling mode to a second priority scheduling mode while making measurements for reselection. In addition, such an example method, may include initiating a mode transition timer in response to the identification and triggering a search for one or more frequencies of the second priority scheduling mode upon expiration of the mode transition timer. As such, an improved reselection during mode transitions at UE may be achieved.Type: GrantFiled: October 8, 2013Date of Patent: August 29, 2017Assignee: Qualcomm IncorporatedInventors: Fan Wang, Sundaresan Tambaram Kailasam, An-Swol Clement Hu, Uzma Khan Qazi
-
Patent number: 9432918Abstract: Apparatus and methods of receive diversity (RxD) full cell search by a user equipment (UE) in a wireless communication system are described. In an aspect, a first set of received energies of a first signal received at a first antenna and a second set of received energies of a second signal received at a second antenna may be separately determined. Based thereon, a set of peak energies and corresponding antenna indices, along with a slot timing of at least one cell corresponding to the set of peak energies and corresponding antenna indices, may be determined. A frame timing and a scrambling code for the at least one cell then may be determined using a respective one of the first antenna and the second antenna corresponding to each of the set of peak energies and the corresponding antenna indices, along with the respective slot timing of the at least one cell.Type: GrantFiled: July 25, 2013Date of Patent: August 30, 2016Assignee: QUALCOMM IncorporatedInventors: Yi Su, Sharif Ahsanul Matin, Ahmad Bilal Hasan, Ramesh Chandra Chirala, Atin Kumar, An-Swol Clement Hu
-
Patent number: 9426713Abstract: Apparatus and method for wireless communication in a wireless communication network include operating a wireless device on a first wireless communication technology and detecting a first cell in first frequency of a second wireless communication technology. The aspects also include determining the detected cell of the second wireless communication technology satisfies a first reselection criterion based on a first measurement and identifying a second frequency of the second wireless communication technology as an undetected frequency based on monitoring the second frequency without detecting a second cell. Aspects also include expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected cell of the second wireless communication technology satisfying the first reselection criterion and determining to reselect to the detected cell of the second wireless communication technology.Type: GrantFiled: February 11, 2013Date of Patent: August 23, 2016Assignee: QUALCOMM IncorporatedInventors: Fan Wang, Uzma Khan, Sundaresan Tambaram Kailasam, Krishna Rao Mandadapu, An-Swol Clement Hu
-
Publication number: 20160134317Abstract: Methods and devices for implementing dynamic receive mode management to improve data throughput and paging performance on a multi-subscriber identification module (SIM) wireless communication device may include detecting, on a protocol stack associated with a first SIM, an active communication in a first network, detecting, on a protocol stack associated with a second SIM, an idle mode paging cycle in a second network, prompting entry into a selected dual receive mode on the shared RF resource, and monitoring at least one performance metric for the idle mode paging cycle associated with the second SIM while in the dual receive mode. Based on the monitored performance metric while in the dual receive mode, the wireless communication device may determine whether paging performance is degraded for the second SIM, and if so, trigger entry into a fallback mode on the shared RF resource.Type: ApplicationFiled: March 30, 2015Publication date: May 12, 2016Inventors: An-swol Clement HU, Reza Shahidi, Chintan Shirish Shah, Jun Hu, Stanley Suyi Tsai, Parth AshwinKumar Pandya, Shanshan Wang, Qingxin Chen, Hari Sankar, Qiang Shen, Thawatt Gopal, Divaydeep Sikri
-
Publication number: 20160126992Abstract: Various embodiments provide methods, devices, and non-transitory processor-readable storage media for mitigating local oscillator (LO) spur interference between radio access technologies (RATs) operating on a multi-active communication device. The various embodiments provide methods, devices, and non-transitory processor-readable storage media to determine residual frequency error for a multi-active communication device and generate LO spur handling tables that may enable the multi-active communication device to compensate for the residual frequency error. A multi-active communication device may mitigate LO spurs by applying mitigation techniques to one or more RATs according to the LO spur handling tables. A multi-active communication device may mitigate LO spurs by turning off a LOs for one or more RATs according to the LO spur handling tables.Type: ApplicationFiled: April 7, 2015Publication date: May 5, 2016Inventors: An-swol Clement Hu, Ashish Gaonekar, Narendra Varma Gottimukkala, Amirreza Khajehnasiri, Patrick Lim, Sridhar Bandaru, Erdogan Dede, Reza Shahidi
-
Patent number: 9125126Abstract: Methods and apparatus of monitoring cells in a wireless communication system may include determining existence of a condition for performing a cell search on a frequency. In addition, the methods and apparatus may include calculating an undetected energy-related value for a hypothetical undetected cell based on a measured energy-related value of each detected cell on the frequency in response to determining the condition for performing the cell search. The methods and apparatus may further include determining whether to perform the cell search based on the undetected energy-related value and a reselection criteria.Type: GrantFiled: January 14, 2013Date of Patent: September 1, 2015Assignee: QUALCOMM IncorporatedInventors: Vansh Pal Singh Makh, Harish Venkatachari, Jittra Jootar, An-Swol Clement Hu, Chih-Ping Hsu
-
Publication number: 20150099528Abstract: Methods and apparatus for decoding system information include determining a maximum repetition rate duration based at least in part on a master information block (MIB). The methods and apparatus further include generating a distributed system information block (SIB) decoding scheme for allocating radio frequency resources between a first subscriber identity module (SIM) and a second SIM. In some aspects, the distributed SIB decoding scheme includes a partitioned SIB decoding schedule for the maximum repetition rate duration and based at least in part on a continuous SIB decoding period. Additionally, the methods and apparatus include attempting to decode one or more SIBs during the maximum repetition rate duration according to the distributed SIB decoding scheme.Type: ApplicationFiled: July 21, 2014Publication date: April 9, 2015Inventors: An-Swol Clement HU, Jittra Jootar
-
Patent number: 8923171Abstract: Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary.Type: GrantFiled: January 29, 2013Date of Patent: December 30, 2014Assignee: QUALCOMM IncorporatedInventors: Atul Arvind Salvekar, Sharad Deepak Sambhwani, Prashant Udupa Sripathi, Nate Chizgi, Christopher Cooper Riddle, An-Swol Clement Hu, Harish Venkatachari
-
Publication number: 20140274050Abstract: Techniques for performing cell reselection to obtain good performance are disclosed. In an aspect of the present disclosure, a user equipment (UE) performs cell reselection to a cell by applying one or more performance-based suitability criteria defined to provide good performance. In one design, the UE obtains a measured value for a cell (e.g., a femto cell) and also determines a threshold value for the cell. The threshold value is not broadcast by a wireless system. The UE determines the threshold value based on a target performance for a physical channel (e.g., a page indicator channel) from the cell. The UE determines a suitability criterion for the cell based on the measured value and the threshold value for the cell. The UE determines whether the cell is a suitable cell and also determines whether to perform cell reselection to the cell based at least on the suitability criterion.Type: ApplicationFiled: March 14, 2013Publication date: September 18, 2014Applicant: QUALCOMM INCORPORATEDInventors: Fan WANG, An-Swol Clement HU, Wei ZHANG, Vansh Pal Singh MAKH
-
Publication number: 20140256327Abstract: The present disclosure presents a method and apparatus for improved reselection during mode transitions at a user equipment (UE). For example, the disclosure presents a method for identifying that a user equipment (UE) has started switching from a first priority scheduling mode to a second priority scheduling mode while making measurements for reselection. In addition, such an example method, may include initiating a mode transition timer in response to the identification and triggering a search for one or more frequencies of the second priority scheduling mode upon expiration of the mode transition timer. As such, an improved reselection during mode transitions at UE may be achieved.Type: ApplicationFiled: October 8, 2013Publication date: September 11, 2014Applicant: QUALCOMM IncorporatedInventors: Fan WANG, Sundaresan TAMBARAM KAILASAM, An-Swol Clement HU, Uzma KHAN
-
Publication number: 20140135016Abstract: Apparatus and methods of maintaining a cell database for wireless communications include discovering a second cell to which a user equipment may reselect. In an aspect, the user equipment may be currently served by a first cell and the second cell is a closed subscriber group cell. Further, aspects include querying a fingerprinting database to determine whether the second cell was previously recorded in the fingerprinting database. Upon determining that the second cell was not previously recorded, further aspects include adding the second cell to the fingerprinting database. Adding the second cell may comprise indicating an association between the first cell and the second cell in the fingerprinting database.Type: ApplicationFiled: March 11, 2013Publication date: May 15, 2014Applicant: QUALCOMM INCORPORATEDInventors: Aziz Gholmieh, Fan Wang, Damanjit Singh, An-Swol Clement Hu, Vikas Gulati, Sundaresan Tambaram Kailasam, Uzma Khan, Vitaly Drapkin, Thomas Klingenbrunn, Sathish Krishnamoorthy, Sumit Kumar Singh, Preyas Desai, Chetan G. Chakravarthy
-
Publication number: 20140133472Abstract: Apparatus and methods of receive diversity (RxD) full cell search by a user equipment (UE) in a wireless communication system are described. In an aspect, a first set of received energies of a first signal received at a first antenna and a second set of received energies of a second signal received at a second antenna may be separately determined. Based thereon, a set of peak energies and corresponding antenna indices, along with a slot timing of at least one cell corresponding to the set of peak energies and corresponding antenna indices, may be determined A frame timing and a scrambling code for the at least one cell then may be determined using a respective one of the first antenna and the second antenna corresponding to each of the set of peak energies and the corresponding antenna indices, along with the respective slot timing of the at least one cell.Type: ApplicationFiled: July 25, 2013Publication date: May 15, 2014Applicant: QUALCOMM IncorporatedInventors: Yi Su, Sharif Ahsanul Matin, Ahmad Bilal Hasan, Ramesh Chandra Chirala, Atin Kumar, An-Swol Clement Hu
-
Patent number: 8687604Abstract: A method and apparatus for improved initial cell acquisition with reduced frequency error impact. The method determines the slot timing of a transmission, identifies the primary scrambling code and frame timing using the common pilot channel, and provides a path profile using a pseudorandom noise (PN) search. An apparatus using a cell searcher that performs the method is also described.Type: GrantFiled: March 13, 2009Date of Patent: April 1, 2014Assignee: QUALCOMM IncorporatedInventors: An-Swol Clement Hu, Jittra Jootar, Parvathanathan Subrahmanya
-
Publication number: 20140078946Abstract: Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary.Type: ApplicationFiled: January 29, 2013Publication date: March 20, 2014Applicant: QUALCOMM INCORPORATEDInventors: Atul Arvind Salvekar, Sharad Deepak Sambhwani, Prashant Udupa Sripathi, Nate Chizgi, Christopher Cooper Riddle, An-Swol Clement Hu, Harish Venkatachari
-
Publication number: 20130242774Abstract: Apparatus and method for wireless communication in a wireless communication network include operating a wireless device on a first wireless communication technology and detecting a first cell in first frequency of a second wireless communication technology. The aspects also include determining the detected cell of the second wireless communication technology satisfies a first reselection criterion based on a first measurement and identifying a second frequency of the second wireless communication technology as an undetected frequency based on monitoring the second frequency without detecting a second cell. Aspects also include expediting a determination of whether to perform cell reselection to the second wireless communication technology based on the undetected frequency and the detected cell of the second wireless communication technology satisfying the first reselection criterion and determining to reselect to the detected cell of the second wireless communication technology.Type: ApplicationFiled: February 11, 2013Publication date: September 19, 2013Applicant: QUALCOMM INCORPORATEDInventors: Fan Wang, Uzma Khan, Sundaresan Tambaram Kailasam, Krishna Rao Mandadapu, An-Swol Clement Hu
-
Publication number: 20130244647Abstract: Methods and apparatus of monitoring cells in a wireless communication system may include determining existence of a condition for performing a cell search on a frequency. In addition, the methods and apparatus may include calculating an undetected energy-related value for a hypothetical undetected cell based on a measured energy-related value of each detected cell on the frequency in response to determining the condition for performing the cell search. The methods and apparatus may further include determining whether to perform the cell search based on the undetected energy-related value and a reselection criteria.Type: ApplicationFiled: January 14, 2013Publication date: September 19, 2013Applicant: QUALCOMM INCORPORATEDInventors: Vansh Pal Singh Makh, Harish Venkatachari, Jittra Jootar, An-Swol Clement Hu, Chih-Ping Hsu
-
Publication number: 20100232397Abstract: A method and apparatus for improved initial cell acquisition with reduced frequency error impact. The method determines the slot timing of a transmission, identifies the primary scrambling code and frame timing using the common pilot channel, and provides a path profile using a pseudorandom noise (PN) search. An apparatus using a cell searcher that performs the method is also described.Type: ApplicationFiled: March 13, 2009Publication date: September 16, 2010Inventors: An-Swol Clement Hu, Jittra Jootar, Parvathanathan Subrahmanya