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公开(公告)号：US10404360B2
公开(公告)日：2019-09-03
申请号：US15707774
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind Sridharan , Kapil Bhattad , Manikandan Chandrasekar , Gowrisankar Somichetty , Alberto Rico Alvarino , Xiao feng Wang
IPC: H04L5/24 , H04B7/26 , H04J3/06 , H04L5/14 , H04L5/02 , H04W72/04 , H04L1/08 , H04L5/00 , H04W4/70 , H04L1/04 , H04W56/00
Abstract: 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 frame structure or a TDD frame structure and a narrowband TDD frame structure configuration for narrowband communications from a group of narrowband TDD frame structures configurations. The apparatus may determine one or more narrowband carriers and subframes within the one or more narrowband carriers to transmit at least one of a BCH or a SIB1 based on the narrowband communication frame structure or the TDD frame structure configuration. The apparatus may transmit a PSS, an SSS, and at least one of a BCH or an SIB1 using the narrowband TDD frame structure determined for the narrowband communications. In one aspect, a carrier used for transmitting the BCH and/or the SIB may be different than a carrier used to transmit one or more of the PSS or the SSS. In another aspect, a narrowband carrier used for transmitting the BCH may be different than a narrowband carrier used to transmit one or more of the PSS or the SSS.
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公开(公告)号：US20180062897A1
公开(公告)日：2018-03-01
申请号：US15249736
申请日：2016-08-29
Applicant: QUALCOMM Incorporated
Inventor： Kiran Kiran , Manikandan Chandrasekar , Swaroop Venkatesh
IPC: H04L27/26 , H04L12/26 , H04L7/033 , H04B17/336
CPC classification number: H04L27/361 , H03C5/00 , H04L27/364
Abstract: Methods, systems, and devices for wireless communication at a polar transmitter are described including: clipping at least a portion of an orthogonal frequency division multiplexing (OFDM) signal that exceeds a first predetermined threshold in a first sample; transferring the clipped portion of the OFDM signal to at least a second sample; and transmitting, by the polar transmitter, the OFDM signal.
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13.发明授权公开(公告)号：US11658784B2
公开(公告)日：2023-05-23
申请号：US17405006
申请日：2021-08-17
Applicant: QUALCOMM INCORPORATED
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Manikandan Chandrasekar , Alberto Rico Alvarino
CPC classification number: H04L5/0048 , H04L5/0005 , H04L5/0053 , H04W4/70 , H04W56/001 , H04W64/00 , H04W72/042 , H04W72/044 , H04W72/0466 , H04L67/12
Abstract: 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.
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公开(公告)号：US11452094B2
公开(公告)日：2022-09-20
申请号：US16702500
申请日：2019-12-03
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar Somichetty , Kapil Bhattad , Alberto Rico Alvarino , Xiao Feng Wang , Manikandan Chandrasekar
Abstract: 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.
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公开(公告)号：US10945265B2
公开(公告)日：2021-03-09
申请号：US16681389
申请日：2019-11-12
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar Somichetty , Kapil Bhattad , Alberto Rico Alvarino , Xiao Feng Wang , Manikandan Chandrasekar
IPC: H04W72/00 , H04W72/04 , H04L1/18 , H04L5/00 , H04L5/14 , H04L1/00 , H04W72/14 , H04W88/08 , H04W88/02
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US10939432B2
公开(公告)日：2021-03-02
申请号：US16415963
申请日：2019-05-17
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar Somichetty , Kapil Bhattad , Alberto Rico Alvarino , Xiao Feng Wang , Manikandan Chandrasekar
Abstract: 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.
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公开(公告)号：US10932260B2
公开(公告)日：2021-02-23
申请号：US16460739
申请日：2019-07-02
Applicant: QUALCOMM Incorporated
Inventor： Gowrisankar Somichetty , Kapil Bhattad , Alberto Rico Alvarino , Xiao Feng Wang , Manikandan Chandrasekar
Abstract: 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.
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公开(公告)号：US10469159B2
公开(公告)日：2019-11-05
申请号：US15706966
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind Sridharan , Kapil Bhattad , Manikandan Chandrasekar , Gowrisankar Somichetty , Alberto Rico Alvarino , Xiao feng Wang
IPC: H04B7/26 , H04J3/06 , H04L5/14 , H04L5/02 , H04L5/24 , H04W72/04 , H04L5/00 , H04W4/70 , H04L1/04 , H04W56/00
Abstract: 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.
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19.发明授权公开(公告)号：US11245503B2
公开(公告)日：2022-02-08
申请号：US16773546
申请日：2020-01-27
Applicant: QUALCOMM INCORPORATED
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Manikandan Chandrasekar , Alberto Rico Alvarino
Abstract: 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.
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20.发明申请公开(公告)号：US20210376983A1
公开(公告)日：2021-12-02
申请号：US17405006
申请日：2021-08-17
Applicant: QUALCOMM INCORPORATED
Inventor： Arul Durai Murugan Palanivelu , Kapil Bhattad , Manikandan Chandrasekar , Alberto Rico Alvarino
Abstract: 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.
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