-
公开(公告)号：US11743872B2
公开(公告)日：2023-08-29
申请号：US17392230
申请日：2021-08-02
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Alberto Rico Alvarino , Peter Gaal , Wanshi Chen , Yongbin Wei , Juan Montojo , Renqiu Wang , Hao Xu , Xiaofeng Wang
IPC: H04W72/0446 , H04L5/00 , H04L27/20
CPC classification number: H04W72/0446 , H04L5/0046 , H04L5/0048 , H04L27/2078
Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.
-
公开(公告)号：US11570597B2
公开(公告)日：2023-01-31
申请号：US15397934
申请日：2017-01-04
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Peter Gaal , Alberto Rico Alvarino , Xiaofeng Wang , Wanshi Chen , Renqiu Wang , Hao Xu
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for pilot design for Narrow-Band Internet of Things (NB-IoT). In certain aspects, the method generally includes determining at least one binary code sequence to use as a demodulation reference signal (DMRS) for a channel transmitted across one or more subframes using one or more tones within a resource block (RB) allocated to the UE for narrowband communication, and transmitting the channel including the DMRS using the one or more tones and the determined binary code sequence. In certain aspects, the binary code sequence may be determined based on a binary random sequence, such as pseudo noise (PN) or Gold sequence.
-
公开(公告)号：US11272468B2
公开(公告)日：2022-03-08
申请号：US16781544
申请日：2020-02-04
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Hao Xu , Peter Gaal , Xiaofeng Wang , Wanshi Chen , Yongbin Wei , Juan Montojo , Alberto Rico Alvarino
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.
-
4.发明授权公开(公告)号：US11212141B2
公开(公告)日：2021-12-28
申请号：US15376490
申请日：2016-12-12
Applicant: QUALCOMM Incorporated
Inventor： Peter Gaal , Hao Xu , Wanshi Chen , Xiaofeng Wang , Alberto Rico Alvarino
Abstract: Certain aspects of the present disclosure relate to methods and apparatus for implementing a data transmission scheme for Narrow-Band Internet of Things (NB-IoT). A User Equipment (UE) combines pairs of antenna ports to generate at least first and second combined antennas ports. The UE receives reference signals transmitted in a narrow band region of a larger system bandwidth, and for each combined port, adds the references signals received on resource elements (REs) of each of the combined pair of antenna ports. The UE determines channel estimates for each combined antenna port based on the added reference signals for the combined port.
-
公开(公告)号：US11089593B2
公开(公告)日：2021-08-10
申请号：US16356813
申请日：2019-03-18
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Peter Gaal , Xiaofeng Wang , Wanshi Chen , Seyed Ali Akbar Fakoorian , Hao Xu , Renqiu Wang , Jing Lei
Abstract: Aspects of the present disclosure provide techniques for design of channel raster for narrowband operation. One example method, performed by a base station, generally includes determining, based on one or more conditions, an exact frequency location of one channel of one or more channels to perform narrowband communications with a user equipment. The method also includes transmitting an indication of the one or more conditions to the user equipment. The method further includes communicating with the UE, based at least in part on the exact frequency location of the one channel.
-
Patent Agency Ranking
公开(公告)号：US10285174B2
公开(公告)日：2019-05-07
申请号：US15371885
申请日：2016-12-07
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Alberto Rico Alvarino , Peter Gaal , Wanshi Chen , Yongbin Wei , Juan Montojo , Renqiu Wang , Hao Xu , Xiaofeng Wang
Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.
-
公开(公告)号：US10285144B2
公开(公告)日：2019-05-07
申请号：US15245498
申请日：2016-08-24
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Hao Xu , Peter Gaal , Xiaofeng Wang , Wanshi Chen , Yongbin Wei , Juan Montojo , Alberto Rico Alvarino
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation and other clean-slate, OFDM based systems such as enhanced component carrier (eCC) systems. An example method is provided for operations which may be performed by a BS to generate and transmit a dual-layer PSS, and correspondingly, techniques for a UE to detect the dual-layer PSS. The PSS may be generated utilizing a binary code cover and at least one sequence applied to a number of symbols within one or more subframes of a frame.
-
公开(公告)号：US11115977B2
公开(公告)日：2021-09-07
申请号：US16369308
申请日：2019-03-29
Applicant: QUALCOMM Incorporated
Inventor： Seyed Ali Akbar Fakoorian , Alberto Rico Alvarino , Peter Gaal , Wanshi Chen , Yongbin Wei , Juan Montojo , Renqiu Wang , Hao Xu , Xiaofeng Wang
Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.
-
公开(公告)号：US10833826B2
公开(公告)日：2020-11-10
申请号：US16272407
申请日：2019-02-11
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Peter Gaal , Hao Xu , Wanshi Chen , Yongbin Wei , Xiaofeng Wang , Renqiu Wang , Seyed Ali Akbar Fakoorian , Madhavan Srinivasan Vajapeyam , Alberto Rico Alvarino , Juan Montojo
Abstract: Aspects of the present disclosure provide techniques for design of synchronization signals for narrowband operation, which can be used for stand-alone/in-band/guard-band deployment. An example method is provided for operations which may be performed by a base station (BS). The example method generally includes generating a primary synchronization signal (PSS) utilizing a first code sequence and a cover code applied to the first code sequence over a first number of symbols within one or more subframes, generating a secondary synchronization signal (SSS) based on a second code sequence over a second number of symbols within one or more subframes, and transmitting the PSS and the SSS in the first and second subframes to a first type of a user equipment (UE) that communicates on one or more narrowband regions of wider system bandwidth.
-
公开(公告)号：US10278180B2
公开(公告)日：2019-04-30
申请号：US15387970
申请日：2016-12-22
Applicant: QUALCOMM Incorporated
Inventor： Alberto Rico Alvarino , Peter Gaal , Xiaofeng Wang , Wanshi Chen , Seyed Ali Akbar Fakoorian , Hao Xu , Renqiu Wang , Jing Lei
Abstract: Aspects of the present disclosure provide techniques for design of channel raster for narrowband operation. One example method, performed by a base station, generally includes determining, based on one or more conditions, an exact frequency location of one channel of one or more channels to perform narrowband communications with a user equipment. The method also includes transmitting an indication of the one or more conditions to the user equipment. The method further includes communicating with the UE, based at least in part on the exact frequency location of the one channel.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.019 seconds)
