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公开(公告)号：US10411833B2
公开(公告)日：2019-09-10
申请号：US15662012
申请日：2017-07-27
摘要： Methods, systems, and devices for wireless communication are described. A wireless device may initiate a successive decoding process for an encoded code block received at the wireless device, and generate, using a successive decoder, one or more candidate paths for a first portion of the code block, where the first portion of the code block includes a first data portion and a first data check portion. The wireless device may then perform a checking function on respective first data portions for the one or more candidate paths using respective first data check portions, and determine whether to terminate the successive decoding process prior to completing decoding of the encoded code block based at least in part on determining whether the checking function for each of the one or more candidate paths for the first data portion has failed the checking function.
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公开(公告)号：US20180139758A1
公开(公告)日：2018-05-17
申请号：US15808637
申请日：2017-11-09
发明人： Hari Sankar , Alexei Yurievitch Gorokhov , Paolo Minero , Hobin Kim , Raghu Challa , Jing Jiang , Joseph Binamira Soriaga
CPC分类号： H04W72/0466 , H04L1/0023 , H04L1/005 , H04L1/0075 , H04W24/02 , H04W24/08 , H04W72/085
摘要： Systems, methods and apparatus select a code book based on channel conditions and performance of a demodulator or demapper in a wireless receiver. The method may include determining that the receiver in a first wireless communication apparatus is configured for iteratively processing signals received from a channel, selecting a code book for use in communicating over the channel based on conditions affecting transmission of the signals through the channel and performance information associated with a demapper in the receiver, and identifying the selected code book in one or more control channels transmitted to a second wireless communication apparatus.
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53.发明申请METHOD AND APPARATUS FOR ENHANCED CHANNEL ESTIMATION USING MATCHING PURSUIT AND ADAPTIVE CLUSTER TRACKING 审中-公开使用匹配滤波和自适应串联跟踪的增强信道估计的方法和装置公开(公告)号：US20150139367A1
公开(公告)日：2015-05-21
申请号：US14082877
申请日：2013-11-18
发明人： Farrokh ABRISHAMKAR , Venkata Gautham Chavali , Insung Kang , Carlos Ruben Cabrera-Mercader , Hari Sankar , Aamod Dinkar Khandekar
IPC分类号： H04L25/02
CPC分类号： H04L25/0256 , H04B1/71072 , H04L25/0204 , H04L25/025
摘要： Apparatus and methods for channel estimation include determining two streams corresponding to odd and even samples of a received signal that is sampled at a first chip rate, performing least squares successive interference cancellation on each of the two streams to obtain odd and even raw channel estimates, interlacing the odd and even raw channel estimates to obtain interlaced channel estimates, interpolating additional samples in the interlaced channel estimates to create higher chip rate channel estimates, identifying a first set of tap positions based on the higher chip rate channel estimates, applying matching pursuit to the first set of tap positions to identify a second set of tap positions, wherein the second set of tap positions includes fewer tap positions than the first set of tap positions, and determining a third set of tap positions by clustering each tap position included in the second set of tap positions.
摘要翻译： 用于信道估计的装置和方法包括确定对应于以第一码片速率采样的接收信号的奇数和偶数采样的两个流，对两个流中的每个流执行最小二乘法连续干扰消除以获得奇数和偶数原始信道估计， 将奇数和偶数原始信道估计交错以获得隔行信道估计，在隔行信道估计中内插附加采样以产生更高的码片速率信道估计，基于较高码片速率信道估计来识别第一组抽头位置，将匹配追踪应用于 所述第一抽头位置集合以识别第二组抽头位置，其中所述第二抽头位置集合包括比所述第一抽头位置集合更少的抽头位置，以及通过将包括在所述抽头位置中的每个抽头位置聚类来确定第三抽头位置集合 第二组抽头位置。
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公开(公告)号：US11382118B2
公开(公告)日：2022-07-05
申请号：US16584833
申请日：2019-09-26
IPC分类号： H04L12/28 , H04W72/12 , H04W72/04 , H04W80/02 , H04L5/00 , H04L25/02 , H04L1/00 , H04W76/27 , H04J1/16
摘要： Certain aspects of the present disclosure generally relate to methods and apparatus for minimum scheduling delay signaling.
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公开(公告)号：US11296823B2
公开(公告)日：2022-04-05
申请号：US15963474
申请日：2018-04-26
发明人： Hobin Kim , Hari Sankar , Alexei Yurievitch Gorokhov , Michael Lee McCloud , Joseph Binamira Soriaga
摘要： A new radio (NR) bit prioritization procedure that may be executed by a UE and a base station is disclosed, resulting in transmission and reception of modulation symbols having prioritized bits. For example, a transmitter may encode a code block using low-density parity-check code to generate a stream of encoded bits. The transmitter may arrange the encoded bits in one or more modulation symbols according to a relative priority of the encoded bits. The highest priority bits may be located in the most significant bits of the modulation symbol, and therefore be less likely to experience errors. A receiver may receive the modulation symbols and reorder the encoded bits according to the coding scheme based on the relative priority prior to decoding the encoded bits. The prioritization of the bits within the modulation symbols may provide improved block error rates over sequential mapping of encoded bits to symbols.
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公开(公告)号：US20220078710A1
公开(公告)日：2022-03-10
申请号：US17400547
申请日：2021-08-12
发明人： Huilin Xu , Peter Gaal , Peter Pui Lok Ang , Alexei Yurievitch Gorokhov , Le Liu , Wooseok Nam , Heechoon Lee , Hari Sankar , Changhwan Park , Yuchul Kim
摘要： Aspects of the present disclosure relate to wireless communications, and more particularly, to reference signal (RS) designs that allow for tracking loop updates and paging of UEs using various RSs. One example method includes identifying reference signal (RS) monitoring occasions for a user equipment (UE) in an idle or inactive mode; and transmitting, to the UE, reference signals in the identified RS monitoring occasions, the RS monitoring occasions being associated with RS for tracking purposes and RS for an indication the UE is to wake up to process additional signaling.
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公开(公告)号：US11246107B2
公开(公告)日：2022-02-08
申请号：US16671007
申请日：2019-10-31
IPC分类号： H04W56/00 , H04W24/10 , H04L12/26 , H04B7/06 , H04W72/04 , H04W72/08 , H04L1/00 , H04L5/00 , H04W76/27 , H04B17/336
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of carriers configured for communications between the UE and one or more transmission reception points (e.g., a set of transmission points). The UE may receive multiple communications over different carriers and determine a time difference or delay between two of the carriers (e.g., a first carrier and a second carrier). Based on the time difference and a time difference threshold, the UE may perform a throughput degradation procedure such as transmitting a report indicating the time difference, transmitting a feedback report with channel quality information determined based on the time difference, etc.
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58.发明授权公开(公告)号：US11196512B2
公开(公告)日：2021-12-07
申请号：US16454979
申请日：2019-06-27
摘要： Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to decode or refrain from decoding a transport block (TB) transmitted from a base station based on a decodability condition. The decodability condition may include whether an effective UE throughput for decoding the TB is greater than a predetermined decoding throughput threshold or not. If the effective UE throughput is greater than the predetermined decoding throughput threshold, the UE may refrain from decoding the TB. In some cases, the TB may be a subsequent transmission from the base station based on an initial transmission not being correctly decoded, and the UE may refrain from decoding the subsequent transmission.
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公开(公告)号：US11018804B2
公开(公告)日：2021-05-25
申请号：US16467463
申请日：2017-12-07
发明人： Jing Jiang , Gabi Sarkis , Yang Yang , Shrinivas Kudekar , Joseph Binamira Soriaga , Hari Sankar , Changlong Xu , Chao Wei
摘要： Methods, systems, and devices for encoding and decoding are described. To encode a vector, an encoder allocates information bits of the vector to channel instances of a channel that are separated into groups. The groups may vary in size and allocation of the information bits is based on a base sequence of a given length. During decoding, a decoder assigns different bit types to channels instances by dividing a codeword into a plurality of groups and assigning bit types to channel instances of the plurality of groups using the base sequence.
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公开(公告)号：US20210152191A1
公开(公告)日：2021-05-20
申请号：US16605911
申请日：2017-05-15
发明人： Gabi Sarkis , Hari Sankar , Gaojin Wu , Changlong Xu , Jing Jiang , Huang Lou
摘要： Techniques are described herein to terminate a list decoding operation before its completion based on performing one or more error check processes. A transmitted codeword encoded using a polar code may include one or more error check vectors interspersed with one or more information vectors. Upon receiving the codeword, a decoder may perform a list decoding operation on the received codeword. Upon decoding one of the error check vectors, the decoder may determine whether at least one candidate path used in the successive cancellation list decoding operation passes an error check process based on the error check vector. If no candidate paths satisfy the error check process, the decoder may terminate the list decoding operation. In some examples, the decoder may recheck whether candidate paths satisfy the error check operation at intermediate positions between error check vectors. Such rechecking may occur while decoding information vectors.
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