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公开(公告)号:US20200099393A1
公开(公告)日:2020-03-26
申请号:US16494621
申请日:2018-01-11
Applicant: Changlong XU , Jian LI , Liangming WU , Joseph Binamira SORIAGA , Jilei HOU , Qualcomm Incorporated
Inventor: Changlong Xu , Jian Li , Liangming Wu , Joseph Binamira Soriaga , Jilei Hou
Abstract: Methods, systems, and devices for wireless communication are described. A transmitter may generate a first segmentation based on a first subset of control information and a second segmentation based on jointly encoding the first subset and a second subset of the control information. The transmitter may polar encode the first segmentation to generate a first codeword and the second segmentation to generate a second codeword, and transmit the first and second codewords. A receiver may determine a first bit sequence corresponding to the first subset based on decoding a first codeword and determine an error detection code (EDC) and a second bit sequence corresponding to the second subset based on decoding a second codeword. The receiver may perform error detection on the first and second bit sequences based on the determined EDC, and output the first bit sequence and the second bit sequence or a decoding error.
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公开(公告)号:US10256887B2
公开(公告)日:2019-04-09
申请号:US15928326
申请日:2018-03-22
Applicant: QUALCOMM Incorporated
Inventor: Liangming Wu , Yu Zhang
IPC: H04B7/06 , H04B7/0456
Abstract: Techniques and apparatus for differential channel state information (CSI) reporting for high resolution CSI are provided. One technique includes receiving a CSI reference signal (CSI-RS). First feedback components associated with first CSI feedback for a first CSI feedback stage are determined based on the CSI-RS, and the first feedback components are reported to a base station. Second feedback components associated with at least one second CSI feedback for at least one second CSI feedback stage are determined based in part on the first feedback components, and the second feedback components are reported to the base station. A precoding for multiple input multiple output (MIMO) communications is determined based on the first feedback components and the second feedback components.
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公开(公告)号:US09634814B2
公开(公告)日:2017-04-25
申请号:US15093648
申请日:2016-04-07
Applicant: QUALCOMM Incorporated
Inventor: Sony Akkarakaran , Sharad Deepak Sambhwani , Liangming Wu , Peyman Razaghi
CPC classification number: H04L5/0053 , H04L1/0038 , H04L5/0016 , H04L27/0012 , H04L27/2602 , H04W28/06 , H04W72/042 , H04W72/1273
Abstract: An apparatus and method for communication including determining an assignment for one of a plurality of symbol durations in a format combination; determining if at least one bit from one or more first upper channels is available if the assignment is associated with the one or more first upper channels and occupying the one of the plurality of symbol durations with the at least one bit, or if unavailable, occupying the one of the plurality of symbol durations with at least one bit from one or more second upper channels or another first upper channel, wherein the first upper channels and the second upper channels are different; and disabling transmission of format information; or including enabling a BTFD hypothesis testing mode; receiving one or more symbol durations on a physical channel; and attempting to decode the received symbol duration with a first hypothesis that a DCCH channel is not transmitted.
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公开(公告)号:US20150381389A1
公开(公告)日:2015-12-31
申请号:US14768625
申请日:2013-04-02
Applicant: QUALCOMM Incorporated
Inventor: Jianqiang Zhang , Jilei Hou , Neng Wang , Xiaohui Liu , Liangming Wu
CPC classification number: H04L25/0204 , H04L5/143 , H04L25/0222 , H04L25/0228
Abstract: Methods, systems, and apparatuses are described for channel estimation in wireless communications. The method, systems, and apparatuses operate in a time-division duplex (TDD) scheme. A first transmission may be received in a first sub-frame of a channel according to the TDD scheme. A time auto-correlation function may be applied to the first transmission to obtain a first auto-correlation sample. At least one characteristic of the channel may be estimated based at least in part on the first auto-correlation sample.
Abstract translation: 描述了用于无线通信中的信道估计的方法,系统和装置。 方法,系统和装置以时分双工(TDD)方案工作。 可以根据TDD方案在信道的第一子帧中接收第一传输。 可以将时间自相关函数应用于第一传输以获得第一自相关样本。 可以至少部分地基于第一自相关样本来估计信道的至少一个特性。
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公开(公告)号:US12256388B2
公开(公告)日:2025-03-18
申请号:US17275573
申请日:2019-09-19
Applicant: QUALCOMM Incorporated
Inventor: Qiaoyu Li , Yu Zhang , Chenxi Hao , Liangming Wu , Hao Xu , Wanshi Chen
IPC: H04W72/21 , H04L5/00 , H04W72/0446
Abstract: Certain aspects of the present disclosure provide techniques for scheduling hybrid automatic repeat request (HARQ) feedback and controlling the transmit power of the HARQ feedback. An example method generally includes generating a configuration for physical uplink control channel (PUCCH) resource sets assigned to at least one user equipment (UE), wherein each of the PUCCH resources sets comprises PUCCH resources, transmitting the configuration for the PUCCH resource sets to the at least one UE, generating an uplink control reporting indication indicating the PUCCH resources associated with downlink demodulation reference signal (DMRS) port groups, transmitting the uplink control reporting indication, to the at least one UE, for use in reporting uplink control information (UCI), and receiving at least a part of the UCI associated with at least one of the downlink DMRS port groups from the at least one UE via the PUCCH resources indicated in the uplink control reporting indication.
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公开(公告)号:US12107647B2
公开(公告)日:2024-10-01
申请号:US16649097
申请日:2017-09-22
Applicant: QUALCOMM Incorporated
Inventor: Chenxi Hao , Yu Zhang , Chao Wei , Liangming Wu , Wanshi Chen
IPC: H04B7/06 , H04B7/0456
CPC classification number: H04B7/0626 , H04B7/0486 , H04B7/0639 , H04B7/0665
Abstract: Certain aspects of the present disclosure provide techniques and apparatus for signaling precoder(s) for non-PMI based CSI feedback.
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公开(公告)号:US12096374B2
公开(公告)日:2024-09-17
申请号:US17593112
申请日:2019-04-06
Applicant: QUALCOMM Incorporated
Inventor: Min Huang , Chao Wei , Yuwei Ren , Yu Zhang , Qiaoyu Li , Chenxi Hao , Liangming Wu , Hao Xu
CPC classification number: H04W52/146 , H04W52/08 , H04W52/10 , H04W52/242
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive an indication of a first transmit power configuration and a second transmit power configuration for a physical uplink shared channel (PUSCH) communication. The wireless communication device may transmit, using a first transmit power that is based at least in part on the first transmit power configuration, a first portion of the PUSCH communication in a full-duplex portion of a time-frequency resource. The wireless communication device may transmit, using a second transmit power that is based at least in part on the second transmit power configuration, a second portion of the PUSCH communication in a non-full-duplex portion of the time-frequency resource. Numerous other aspects are provided.
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公开(公告)号:US12088379B2
公开(公告)日:2024-09-10
申请号:US17594856
申请日:2019-05-31
Applicant: QUALCOMM Incorporated
Inventor: Liangming Wu , Chao Wei , Yu Zhang , Chenxi Hao , Qiaoyu Li , Min Huang , Wanshi Chen
IPC: H04B7/06 , H04B7/0456 , H04L5/00
CPC classification number: H04B7/0626 , H04B7/0486 , H04B7/0632 , H04B7/0639 , H04L5/0051
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sounding reference signal (SRS) that indicates that the UE is configured with a quantity of receive elements that is greater relative to a quantity of transmit elements with which the UE is configured. The UE may receive, based at least in part on transmitting the SRS, a first channel state information (CSI) reference signal (CSI-RS) set and a second CSI-RS set. The UE may transmit a CSI report that is based at least in part on the first CSI-RS set and the second CSI-RS set. Numerous other aspects are provided.
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公开(公告)号:US12088377B2
公开(公告)日:2024-09-10
申请号:US17429065
申请日:2019-02-15
Applicant: Qualcomm Incorporated
Inventor: Liangming Wu , Chao Wei , Qiaoyu Li , Chenxi Hao , Hao Xu
IPC: H04B7/06
CPC classification number: H04B7/0626 , H04B7/0634
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform channel state information measurements on reference signal transmissions from a base station. The UE may identify a set of cross layer coefficients associated with a set of spatial layers based on the channel state information measurements. The UE may additionally identify a set of precoding coefficients associated with a spatial layer from the set of spatial layers. In some implementations, the set of precoding coefficients may be based on the set of cross layer coefficients. In some examples, the UE may transmit the set of cross layer coefficients and the set of precoding coefficients to the base station.
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公开(公告)号:US12088376B2
公开(公告)日:2024-09-10
申请号:US17274412
申请日:2018-09-21
Applicant: QUALCOMM Incorporated
Inventor: Chenxi Hao , Yu Zhang , Liangming Wu , Qiaoyu Li , Wanshi Chen , Peter Gaal
IPC: H04B7/06 , H04B7/0456 , H04L5/00
CPC classification number: H04B7/0626 , H04B7/0486 , H04B7/0632 , H04B7/0639 , H04L5/0051
Abstract: Certain aspects of the present disclosure provide techniques for a channel state information (CSI) report configuration for a multiple transmission reception point (TRP) transmission, such as a non-coherent joint transmission (NCJT). A method by a base station (BS) includes providing a user equipment (UE) with a CSI report configuration. The CSI report configuration is associated with one or more CSI reference signal (RS) resources. Each CSI-RS resource comprising a set of ports or port groups. The BS signals the UE to enable the UE to send a CSI report including CSI for more than one CSI-RS resource or for a CSI-RS resource comprising more than one port group and receives a CSI report from the UE.
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