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公开(公告)号：US20180234169A1
公开(公告)日：2018-08-16
申请号：US15706934
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao feng WANG
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 bandwidth for narrowband communications. The apparatus may determine a narrowband TDD frame structure for the narrowband communications. In one aspect, the narrowband TDD frame structure may include at least one of two or more contiguous downlink subframes, or one or more flexible subframes that can be configured as either a downlink subframe or an uplink subframe. The apparatus may communicate with a UE using the narrowband TDD frame structure determined for the narrowband communications.
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12.发明申请公开(公告)号：US20180097596A1
公开(公告)日：2018-04-05
申请号：US15718447
申请日：2017-09-28
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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Patent Agency Ranking
公开(公告)号：US20190274141A1
公开(公告)日：2019-09-05
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：US20180234229A1
公开(公告)日：2018-08-16
申请号：US15724127
申请日：2017-10-03
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 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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公开(公告)号：US20180234219A1
公开(公告)日：2018-08-16
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
CPC classification number: H04B7/2606 , H04B7/2656 , H04B7/2668 , H04J3/0682 , H04L1/04 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/005 , H04L5/0053 , H04L5/006 , H04L5/0091 , H04L5/0094 , H04L5/023 , H04L5/14 , H04L5/143 , H04L5/1469 , H04L5/24 , H04W4/70 , H04W56/0005 , H04W56/008 , H04W72/0446 , H04W72/0453
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：US20180234173A1
公开(公告)日：2018-08-16
申请号：US15707789
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao feng WANG
CPC classification number: H04B7/2606 , H04B7/2656 , H04B7/2668 , H04J3/0682 , H04L1/04 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/005 , H04L5/0053 , H04L5/006 , H04L5/0091 , H04L5/0094 , H04L5/023 , H04L5/14 , H04L5/143 , H04L5/1469 , H04L5/24 , H04W4/70 , H04W56/0005 , H04W56/008 , H04W72/0446 , H04W72/0453
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 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.
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公开(公告)号：US20180234171A1
公开(公告)日：2018-08-16
申请号：US15707003
申请日：2017-09-18
Applicant: QUALCOMM Incorporated
Inventor： Arvind SRIDHARAN , Kapil BHATTAD , Manikandan CHANDRASEKAR , Gowrisankar SOMICHETTY , Alberto RICO ALVARINO , Xiao feng WANG
CPC classification number: H04B7/2606 , H04B7/2656 , H04B7/2668 , H04J3/0682 , H04L1/04 , H04L5/0007 , H04L5/001 , H04L5/0023 , H04L5/005 , H04L5/0053 , H04L5/006 , H04L5/0091 , H04L5/0094 , H04L5/023 , H04L5/14 , H04L5/143 , H04L5/1469 , H04L5/24 , H04W4/70 , H04W56/0005 , H04W56/008 , H04W72/0446 , H04W72/0453
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 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
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