Patents by Inventor Manikandan Chandrasekar
Manikandan Chandrasekar 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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Publication number: 20240056238Abstract: This disclosure provides methods, devices and systems for communicating over a 60 GHz band and reusing legacy hardware for communication over sub-6 bands. Certain aspects are directed to outputting, for transmission to a second wireless device, a first packet, wherein the first packet is output via a radio frequency (RF) front end defined by a first clock accuracy requirement having an acceptable error rate that is lower than a legacy clock accuracy requirement, and wherein the first packet is output for transmission via a first band. Certain aspects are directed to obtaining, from the second wireless device, a second packet via the first band.Type: ApplicationFiled: August 9, 2022Publication date: February 15, 2024Inventors: Manikandan CHANDRASEKAR, Raj Kumar KRISHNA KUMAR, Venkatesh BHAT
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Patent number: 11811690Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: GrantFiled: October 1, 2021Date of Patent: November 7, 2023Assignee: QUALCOMM IncorporatedInventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Patent number: 11658784Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: GrantFiled: August 17, 2021Date of Patent: May 23, 2023Assignee: QUALCOMM IncorporatedInventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Patent number: 11452094Abstract: A method, computer-readable medium, and apparatus are provided. In addition, the apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.Type: GrantFiled: December 3, 2019Date of Patent: September 20, 2022Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao Feng Wang, Manikandan Chandrasekar
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Patent number: 11245503Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: GrantFiled: January 27, 2020Date of Patent: February 8, 2022Assignee: QUALCOMM IncorporatedInventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Publication number: 20220021501Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: ApplicationFiled: October 1, 2021Publication date: January 20, 2022Inventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Publication number: 20210376983Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: ApplicationFiled: August 17, 2021Publication date: December 2, 2021Inventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Patent number: 11050483Abstract: A UE may determine a frame structure for narrowband communications, the frame structure corresponding to one frame structure from a group of TDD frame structures of different downlink and uplink subframe configurations. The UE receives configuration information indicating a first carrier to monitor for a BCH and/or a SIB1. Then, the UE receives a PSS, an SSS, and the BCH and/or the SIB1 using the frame structure determined for the narrowband communications. The first carrier that is used to receive the BCH and/or the SIB1 may be different from a second carrier used to receive one or more of the PSS or the SSS.Type: GrantFiled: June 26, 2019Date of Patent: June 29, 2021Assignee: QUALCOMM IncorporatedInventors: Arvind Sridharan, Kapil Bhattad, Manikandan Chandrasekar, Gowrisankar Somichetty, Alberto Rico Alvarino, Xiao Feng Wang
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Patent number: 10958337Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband communication frame structure comprising a FDD mode or a TDD mode and a particular TDD frame structure for narrowband communications from a group of narrowband TDD frame structures. The apparatus may determine a periodicity, subframe number, and transmission sequence associated with a SSS based at least in part on the narrowband TDD frame structure. The apparatus may transmit the SSS using the narrowband TDD frame structure determined for the narrowband communications. In one aspect, the SSS may be transmitted in a same subframe within a frame and at a periodicity of 2 or more frames.Type: GrantFiled: September 18, 2017Date of Patent: March 23, 2021Assignee: QUALCOMM IncorporatedInventors: Arvind Sridharan, Kapil Bhattad, Manikandan Chandrasekar, Gowrisankar Somichetty, Alberto Rico Alvarino, Xiao feng Wang
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Patent number: 10945265Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.Type: GrantFiled: November 12, 2019Date of Patent: March 9, 2021Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao Feng Wang, Manikandan Chandrasekar
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Patent number: 10939432Abstract: There is a need to support TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine to receive a narrowband physical downlink channel in a first subframe in a TDD frame structure of a plurality of TDD frame structures for narrowband communications. The TDD frame structures may include one or more special subframes, and the first subframe may be a downlink subframe. The apparatus may receive the narrowband physical downlink channel in a special subframe of the narrowband TDD frame structure, if the number of downlink OFDM symbols in the special subframe is greater than a predetermined threshold.Type: GrantFiled: May 17, 2019Date of Patent: March 2, 2021Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao Feng Wang, Manikandan Chandrasekar
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Patent number: 10932260Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD frame structure of a group of TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.Type: GrantFiled: July 2, 2019Date of Patent: February 23, 2021Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao Feng Wang, Manikandan Chandrasekar
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Publication number: 20200169367Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: ApplicationFiled: January 27, 2020Publication date: May 28, 2020Inventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Publication number: 20200112955Abstract: A method, computer-readable medium, and apparatus are provided. In addition, the apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.Type: ApplicationFiled: December 3, 2019Publication date: April 9, 2020Inventors: Gowrisankar SOMICHETTY, Kapil BHATTAD, Alberto RICO ALVARINO, Xiao Feng WANG, Manikandan CHANDRASEKAR
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Publication number: 20200084770Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.Type: ApplicationFiled: November 12, 2019Publication date: March 12, 2020Inventors: Gowrisankar SOMICHETTY, Kapil Bhattad, Alberto Rico Alvarino, Xiao Feng Wang, Manikandan Chandrasekar
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Patent number: 10547421Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.Type: GrantFiled: September 28, 2017Date of Patent: January 28, 2020Assignee: QUALCOMM IncorporatedInventors: Arul Durai Murugan Palanivelu, Kapil Bhattad, Manikandan Chandrasekar, Alberto Rico Alvarino
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Patent number: 10542538Abstract: A method, computer-readable medium, and apparatus are provided. The apparatus may determine a first set of subframes in the narrowband TDD frame structure used for transmitting a downlink control channel to a UE. In one aspect, a last subframe in the first set of subframes may be subframe n. Further, the apparatus may determine a second set of subframes in the narrowband TDD frame structure used for transmitting a downlink data channel to the UE. In certain aspects, a first subframe in the second set of subframes may be delayed based on k0 number of subframes after the subframe n. In certain other aspects, a last subframe in the second set of subframes may be subframe n+k0+x. Additionally, the apparatus may signal first information associated with the k0 number of subframes to the UE in a first delay field in a DCI transmission.Type: GrantFiled: October 3, 2017Date of Patent: January 21, 2020Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao feng Wang, Manikandan Chandrasekar
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Patent number: 10524258Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure of a group of narrowband TDD frame structures for narrowband communications. The apparatus may transmit a series of repetitions of a narrowband physical downlink channel using the narrowband TDD frame structure. In one aspect, a first portion of repetitions from the series of repetitions may be transmitted in one or more first sets of downlink subframes using a first scrambling sequence. In one aspect, a second portion of repetitions from the series of repetitions may be transmitted in one or more second sets of downlink subframes using a second scrambling sequence.Type: GrantFiled: October 3, 2017Date of Patent: December 31, 2019Assignee: QUALCOMM IncorporatedInventors: Gowrisankar Somichetty, Kapil Bhattad, Alberto Rico Alvarino, Xiao feng Wang, Manikandan Chandrasekar
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Patent number: 10498435Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a narrowband TDD frame structure for narrowband communications from a group of narrowband TDD frame structures. In one aspect, the narrowband TDD frame structure may include a set of downlink subframes and more than one special subframe. The apparatus may determine a set of narrowband carriers and a minimum set of subframes on the set of narrowband carriers based at least in part on the set of downlink subframes and more than one special subframe on which a NRS should be transmitted. The apparatus may transmit the NRS using the narrowband TDD frame structure determined for the narrowband communications.Type: GrantFiled: September 18, 2017Date of Patent: December 3, 2019Assignee: QUALCOMM IncorporatedInventors: Arvind Sridharan, Kapil Bhattad, Manikandan Chandrasekar, Gowrisankar Somichetty, Alberto Rico Alvarino, Xiao feng Wang
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Patent number: 10469159Abstract: There is a need to support narrowband TDD frame structure for narrowband communications. The present disclosure provides a solution by supporting one or more narrowband TDD frame structure(s) for narrowband communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may determine a TDD mode for narrowband communications. The apparatus may determine a TDD frame structure for the narrowband communications from a group of narrowband TDD frame structures. In one aspect, at least one common subframe in each narrowband TDD frame structure in the group of narrowband TDD frame structures may be configured as a downlink subframe. The apparatus may transmit a PSS using the at least one common subframe in the narrowband TDD frame structure determined for the narrowband communications.Type: GrantFiled: September 18, 2017Date of Patent: November 5, 2019Assignee: QUALCOMM IncorporatedInventors: Arvind Sridharan, Kapil Bhattad, Manikandan Chandrasekar, Gowrisankar Somichetty, Alberto Rico Alvarino, Xiao feng Wang