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公开(公告)号:US20180124753A1
公开(公告)日:2018-05-03
申请号:US15593237
申请日:2017-05-11
Applicant: QUALCOMM Incorporated
Inventor: Jing Sun , Jing Jiang , Wanshi Chen , Peter Pui Lok Ang , Tao Luo , Yang Yang , Jamie Menjay Lin
IPC: H04W72/04
Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide piggyback downlink control information within the physical downlink shared channel (PDSCH). A first downlink control information portion may be transmitted within the physical downlink control channel (PDCCH) and may include information indicating a size of a second downlink control information portion transmitted within the PDSCH.
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公开(公告)号:US20180115382A1
公开(公告)日:2018-04-26
申请号:US15791319
申请日:2017-10-23
Applicant: QUALCOMM Incorporated
Inventor: Alexandros Manolakos , Yang Yang , June Namgoong , Jing Jiang
CPC classification number: H04J11/0073 , H04B7/066 , H04J11/0023 , H04J13/00 , H04J13/004 , H04L5/0019 , H04L5/0051 , H04L27/2613 , H04W56/0015
Abstract: Wireless communication devices are adapted to facilitate multiplexing of reference signals. According to one example, a wireless communication device can multiplex a first reference signal and a second reference signal utilizing code division multiplexing for transmission across a first resource element and a second resource element. The first resource element may utilize a first subcarrier in a first OFDM symbol employing a first numerology. The second resource element may utilize a second subcarrier in a second OFDM symbol employing a second numerology that is different from the first numerology, where the second subcarrier overlaps in frequency at least a portion of the first subcarrier. The first and second OFDM including the multiplexed first and second reference signals may subsequently be transmitted. Other aspects, embodiments, and features are also included.
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公开(公告)号:US20180048334A1
公开(公告)日:2018-02-15
申请号:US15616792
申请日:2017-06-07
Applicant: QUALCOMM Incorporated
Inventor: Gabi Sarkis , Yang Yang , Jing Jiang , Jamie Menjay Lin , John Edward Smee
CPC classification number: H03M13/3761 , H03M13/13 , H03M13/611 , H03M13/6525 , H04L1/0041 , H04L1/0057 , H04L1/0058
Abstract: Methods, systems, and devices for outputting of codeword bits for transmission prior to loading all input bits. An example encoder may have multiple encoding branches. The encoder may divide the encoding branches into first and second encoding branch subsets, outputs of the first encoding branch subset being independent of inputs to the second encoding branch subset. The encoder may generate first and second subsets of output bits of a codeword in first and second encoding operations, the generating comprising inputting information bits of an information bit-vector and at least one frozen bit into respective encoding branches of the plurality of encoding branches and generating the first subset of output bits using the first encoding branch subset prior to generating the second subset of output bits using the second encoding branch subset. The encoder may output the first subset of output bits prior to outputting the second subset of output bits.
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公开(公告)号:US09894701B2
公开(公告)日:2018-02-13
申请号:US15048662
申请日:2016-02-19
Applicant: QUALCOMM Incorporated
Inventor: Peter Pui Lok Ang , Jing Jiang , Tingfang Ji , John Edward Smee , Joseph Binamira Soriaga , Naga Bhushan
IPC: H04W76/02 , H04B17/364 , H04W28/02 , H04L12/815 , H04L12/801 , H04L12/807 , H04L12/841
CPC classification number: H04W76/15 , H04B17/364 , H04L47/12 , H04L47/22 , H04L47/27 , H04L47/283 , H04W28/0205 , H04W28/0215 , H04W28/0273
Abstract: Various aspects of the disclosure provide for apparatus, methods, and software, for enabling inter-node coordination between scheduling entities and subordinate entities for managing a modem processing pipeline. Pipelining is a proven technique for improving the utilization of hardware processing blocks without substantially increasing chip area. Accordingly, various aspects of the present disclosure provide for efficient processing pipelining at the modem of a wireless communication device, with a general aim to reduce communication latency even in a wide bandwidth network. In various examples, modem processing pipeline efficiency may be augmented by utilizing certain coordination signaling between the sender and the receiver of downlink transmissions, to make the sender aware of the receiver and the pipelining enhancement to be undertaken at the receiver. By virtue of this coordination, the best tradeoff for pipeline efficiency may be targeted, while still meeting a generally tight ACK turnaround requirement.
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公开(公告)号:US20180042035A1
公开(公告)日:2018-02-08
申请号:US15784036
申请日:2017-10-13
Applicant: QUALCOMM Incorporated
Inventor: Jing Jiang , Peter Pui Lok Ang , Tingfang Ji , John Edward Smee , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli
CPC classification number: H04W72/1205 , H04L1/00 , H04L1/1607 , H04L5/0007 , H04L5/0044 , H04L5/0055 , H04L5/1469
Abstract: In an aspect of the disclosure, a method, a computer program product, and an apparatus are provided. The method may be performed by a scheduling entity. The scheduling entity transmits control information in a control portion of the subframe, the control information corresponding to data information within the subframe, transmits the data information in a data portion of the subframe, receives a pilot signal from the set of subordinate entities in a pilot portion of the subframe, and receives an ACK/NACK signal from the set of subordinate entities in an ACK portion of the subframe. The ACK portion is subsequent to the pilot portion of the subframe. The ACK/NACK signal includes acknowledgment information corresponding to the data information. The control portion, the data portion, the pilot portion, and the ACK portion are contained in the same subframe.
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公开(公告)号:US20180035422A1
公开(公告)日:2018-02-01
申请号:US15440947
申请日:2017-02-23
Applicant: QUALCOMM Incorporated
Inventor: Renqiu Wang , Hao Xu , Wei Zeng , Jing Jiang , Tingfang Ji
Abstract: Methods, systems, and devices for wireless communication are described that provide for uplink channel multiplexing and waveform selection. Uplink channels to be transmitted from one or more user equipment (UEs) to a base station are multiplexed together or separately into an uplink subframe. Each UE is capable of using different waveforms to transmit different channels. Reference signals are communicated according to an RS pattern, which is symmetric across uplink and downlink channels.
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公开(公告)号:US20180019766A1
公开(公告)日:2018-01-18
申请号:US15414548
申请日:2017-01-24
Applicant: QUALCOMM Incorporated
Inventor: Yang Yang , Jing Jiang , Jamie Menjay Lin , Hari Sankar , Joseph Binamira Soriaga
CPC classification number: H03M13/13
Abstract: Aspects of the present disclosure relate to pipelining two or more decoding stages during successive-cancellation polar code list decoding of a polar coded information transmission. During each cycle, the path metrics of candidate decoding paths of each of the pipelined decoding stages are compared and one of the candidate decoding paths from each pipelined decoding stage is selected for the next respective decoding stage.
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公开(公告)号:US20170359146A1
公开(公告)日:2017-12-14
申请号:US15592519
申请日:2017-05-11
Applicant: QUALCOMM Incorporated
Inventor: Yang Yang , Jing Jiang , Jamie Menjay Lin , Hari Sankar , Joseph Binamira Soriaga
IPC: H04L1/00
CPC classification number: H04L1/0054 , H03M13/4115 , H04L1/005
Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support enhanced efficiency in list Viterbi algorithm (LVA) decoding using iterative comparison trellis construction. Iterative comparison may involve comparison and selection from ordered accumulated path metrics associated with feeding transitions by selecting, for each successive rank of an ordered path metrics list for the current stage, the best unselected accumulated path metric of the feeding transitions. The iterative comparison may be performed sequentially for each stage before processing the next stage. Alternatively, the iterative comparison may be pipelined across stages, and different ranks of the ordered path metrics lists for different stages may be concurrently computed in a single trellis search cycle using multiple comparators. Iterative comparison may be used in an inner decoder to generate an ordered path metrics list for processing according to an error checking function using an outer decoder.
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公开(公告)号:US20170331662A1
公开(公告)日:2017-11-16
申请号:US15426883
申请日:2017-02-07
Applicant: QUALCOMM Incorporated
Inventor: Jing Sun , Wanshi Chen , Peter Gaal , Jing Jiang
CPC classification number: H04L27/3411 , H04J11/004 , H04L5/0073 , H04L27/20 , H04L27/3488 , H04L27/362
Abstract: A combined symbol constellation may be selected from a uniform symbol constellation that is supported by a de-mapper to provide additional power split options while reducing modifications to the de-mapper. In some examples, a signal may be constructed according to a combined symbol constellation selected from a larger uniform symbol constellation based on a desired power-ratio. The signal may include a base-layer, used to communicate a first set of data, and an enhancement-layer, used to communicate a second set of data, in accordance with the selected combined symbol constellation. The signal may be received and de-mapped according to the combined symbol constellation at a de-mapper that supports a uniform symbol constellation that is larger than the combined symbol constellation.
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250.
公开(公告)号:US20170325250A1
公开(公告)日:2017-11-09
申请号:US15458863
申请日:2017-03-14
Applicant: QUALCOMM Incorporated
Inventor: Alexandros Manolakos , Jing Jiang , Joseph Binamira Soriaga , Krishna Kiran Mukkavilli , Peter Pui Lok Ang , Tingfang Ji , Peter Gaal
CPC classification number: H04W72/1205 , H04L5/0007 , H04L27/2602 , H04W76/10
Abstract: Aspects of the present disclosure provide various wireless communication numerology designs that can maintain symbol boundary alignment while multiplexing different numerologies in wireless communication. The symbols may be scaled for different tone or subcarrier spacings while maintaining the symbol boundary alignment between different numerologies. Maintaining the symbol-boundary alignment between different numerologies enables symbol-level numerology multiplexing. The disclosed numerology designs enable low latency communication and improved interference management, and provide non-ambiguous symbol boundary timing reference for multiplexing different numerologies.
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