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公开(公告)号：US10420088B2
公开(公告)日：2019-09-17
申请号：US15613014
申请日：2017-06-02
Applicant: QUALCOMM Incorporated
Inventor： Peter Pui Lok Ang , Tao Luo , Krishna Kiran Mukkavilli , June Namgoong , Yang Yang , Tingfang Ji
IPC: H04W72/04 , H04B7/0413 , H04L5/00 , H04W72/12
Abstract: Aspects of the disclosure provide a slot structure (e.g., the arrangement of channels and pilot signals within a slot) that can relax the processing timeline for a wireless communication device. For example, in the first or initial symbol of a slot, control information may be frequency division multiplexed (FDM) with a demodulation reference signal (DMRS) or with user data. In some cases, delayed-processing data may be sampled, and the samples may be buffered at the receiving device, for processing later, after control information needed to process the data has been received and processed. Further aspects provide for payload pre-tapering. That is, when a device delays the processing of data bits, this can cause a processing bottleneck after that buffering delay. By virtue of various pre-tapering techniques described herein, the processing load needed to process the delayed-processing data can be reduced. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US20190245560A1
公开(公告)日：2019-08-08
申请号：US16267007
申请日：2019-02-04
Applicant: QUALCOMM Incorporated
Inventor： Wei Yang , Ying Wang , Jing Jiang , Yang Yang , Gabi Sarkis
CPC classification number: H03M13/13 , H03M13/005 , H03M13/033 , H03M13/1125 , H03M13/1137 , H03M13/6362 , H04L1/0057 , H04L1/0068
Abstract: Methods, systems, and devices for wireless communications are described. An encoder of a wireless device may receive a number of information bits and a block size for transmission. If the block size is not a power of two, the encoder may round the block size up to the nearest power of 2, generate a larger codeword, and puncture the excess bits. The punctured bits may affect a rate of polarization when generating a polar code, and sub-blocks with a high number of punctured bits may produce too few sufficiently polarized channels. The encoder may implement a capacity backoff when polar coding to identify a greater number of polarized channels. The encoder may assign information bits to sufficiently polarized channels of the greater number of polarized channels.
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公开(公告)号：US10314065B2
公开(公告)日：2019-06-04
申请号：US15474503
申请日：2017-03-30
Applicant: QUALCOMM Incorporated
Inventor： Yang Yang , Jing Jiang , Peter Ang , Tingfang Ji
Abstract: The disclosure relates in some aspects to multiplexing different types of traffic. Techniques are disclosed to facilitate puncturing one type of traffic with another type of traffic (e.g., traffic having more stringent latency and/or reliability requirements). In some aspects, these techniques mitigate potential loss of control information for the punctured traffic. In some aspects, the disclosed techniques are applicable to mobile broadband traffic and mission critical traffic.
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134.发明授权公开(公告)号：US10313057B2
公开(公告)日：2019-06-04
申请号：US15607161
申请日：2017-05-26
Applicant: QUALCOMM Incorporated
Inventor： Jamie Menjay Lin , Yang Yang , Joseph Binamira Soriaga
Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for increasing decoding performance and/or reducing decoding complexity. An exemplary method generally includes obtaining a payload to be transmitted, partitioning the payload into a plurality of payload sections, deriving redundancy check information for each respective payload section of the plurality of payload sections, merging the redundancy check information for each payload section with the plurality of payload sections to form a sequence of bits, and generating a codeword by encoding the sequence of bits using an encoder. Other aspects, embodiments, and features are also claimed and described.
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公开(公告)号：US20190159206A1
公开(公告)日：2019-05-23
申请号：US16190762
申请日：2018-11-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Peter Pui Lok Ang , Yang Yang , Yi Huang , Joseph Binamira Soriaga , Peter Gaal
CPC classification number: H04W72/0453 , H04L1/1664 , H04L1/1861 , H04L1/1896 , H04L5/001 , H04L5/0053 , H04L5/0055 , H04L5/0094 , H04W72/0413 , H04W72/042 , H04W72/048 , H04W72/14
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an uplink grant that includes multiple total downlink assignment indexes (DAIs) corresponding to multiple DAI groups associated with the UE, wherein each of the multiple DAI groups is associated with a different set of component carriers used by the UE for carrier aggregation; and transmit (ACK/NACK) feedback for the multiple DAI groups based at least in part on the multiple total DAIs included in the uplink grant. In some aspects, a base station may determine multiple total DAIs corresponding to multiple DAI groups associated with a UE, wherein each of the multiple DAI groups is associated with a different set of component carriers used by the UE for carrier aggregation; and transmit the multiple total DAIs to the UE in an uplink grant. Numerous other aspects are provided.
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Patent Agency Ranking
公开(公告)号：US10147017B2
公开(公告)日：2018-12-04
申请号：US14585759
申请日：2014-12-30
Applicant: QUALCOMM Incorporated
Inventor： Magdi Abuelgasim Mohamed , Xin Zhong , Yang Yang
Abstract: A method for obtaining structural information from a digital image by an electronic device is described. The method includes obtaining a digital image. The method also includes determining a gradient vector for each pixel in a region of interest of the digital image. The method further includes transforming each pixel in the region of interest in accordance with a transform. Transforming each pixel includes determining, for each pixel, a first set of pixels. The first set of pixels includes any pixel along a line that is collinear with or perpendicular to the gradient vector and passes through a pixel location. Transforming each pixel includes incrementing with signed integer values, for each pixel, a first set of values in a transform space corresponding to any of the first set of pixels that are in a first direction of the line.
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公开(公告)号：US20180270017A1
公开(公告)日：2018-09-20
申请号：US15920276
申请日：2018-03-13
Applicant: QUALCOMM Incorporated
Inventor： Jamie Menjay Lin , Yang Yang , Gabi Sarkis
Abstract: A wireless device may decode a polar coded codeword using a successive cancellation list (SCL) decoder. The decoder may implement a distributed feedback architecture, where the decoder stores one or more state maps and a set of bit arrays in memory for each layer of decoding. For different phases of decoding in a layer, the decoder may update the state maps and sets of bit arrays to limit the resources used. Additionally, when performing bit updating following the decoding of a bit of the codeword, the decoder may not update each layer of the decoding process. Instead, each sub-decoder may send a state map up to the calling layer for bit updating when the sub-decoder has completed its invocation, and may not return any intermediate state maps prior to completing invocation. Thus, each decoder and sub-decoder may perform bit updating just twice, reducing the complexity and latency of decoding.
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138.发明授权公开(公告)号：US10075194B2
公开(公告)日：2018-09-11
申请号：US15358960
申请日：2016-11-22
Applicant: QUALCOMM Incorporated
Inventor： Jamie Menjay Lin , Yang Yang , Joseph Binamira Soriaga , Jing Jiang , Tingfang Ji
IPC: H03M13/41 , H04B7/0413 , H04L1/00
CPC classification number: H03M13/4115 , H03M13/413 , H03M13/4169 , H03M13/6502 , H04B7/0413 , H04L1/0054
Abstract: Certain aspects of the present disclosure relate to techniques and apparatus for enhanced decoding, for example, by providing a multi-phase tail biting convolutional code (TBCC) decoding algorithm. An exemplary method generally includes obtaining, via a wireless medium, a codeword encoded with a TBCC encoding scheme, generating metrics for candidate paths through trellis stages of a decoder, propagating information from at least one of the trellis stages to a later trellis stage, while generating the metrics, selecting a set of the candidate paths based on the propagated information, and decoding the encoded codeword by evaluating the selected set of candidate paths based, at least in part, on the generated metrics. Other aspects, embodiments, and features are claimed and described.
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公开(公告)号：US20180227074A1
公开(公告)日：2018-08-09
申请号：US15887821
申请日：2018-02-02
Applicant: QUALCOMM Incorporated
Inventor： Jing Sun , Wanshi Chen , Peter Gaal , Yang Yang , Heechoon Lee
Abstract: Methods, systems, and devices for wireless communication are described a search space configuration. A set of physical resource blocks (PRBs) or resource element groups (REGs) may be configured over two or more modulation symbols. A control channel element (CCE), or fixed set of REGs, may be formed using REGs in one modulation symbol. A search space, or set of decoding candidates, may be configured for one user equipment (UE) or multiple UEs. Search spaces for different UEs may share some CCEs. A decoding candidate for a UE may occupy a set of CCEs; the UE may make decoding to attempts on the set of CCEs. A base station may transmit in a subset of decoding candidates configured for the UE. A demodulation reference signal (DMRS) may be transmitted when a decoding candidate is used, and DMRS may not be transmitted when a decoding candidate is not used.
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公开(公告)号：US20180198564A1
公开(公告)日：2018-07-12
申请号：US15849034
申请日：2017-12-20
Applicant: QUALCOMM Incorporated
Inventor： Yang Yang , Jing Jiang , Gabi Sarkis , Huang Lou , Hari Sankar
Abstract: Decoding and encoding methods, systems, and devices for wireless communication are described. One method may include receiving a codeword over a wireless channel, the codeword being encoded using a polar code, identifying a set of repeated bit locations in the received codeword, and identifying a set of bit locations of the polar code used for information bits for the encoding. The set of bit locations may be determined based at least in part on recursively partitioning bit-channels of the polar code for each stage of polarization and assigning portions of a number of the information bits to bit-channel partitions of each stage of polarization based on a mutual information transfer function of respective aggregate capacities of the bit-channel partitions. The method may also include decoding the received codeword according to the polar code to obtain an information bit vector at the set of bit locations, and other aspects and features.
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