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11. 发明授权

US11171739B2 Reduced overhead error detection code design for decoding a codeword 有权
公开(公告)号：US11171739B2
公开(公告)日：2021-11-09
申请号：US16763304
申请日：2018-10-26
申请人： Qualcomm Incorporated , Changlong Xu , Liangming Wu , Jian Li , Kai Chen , Jing Jiang , Gabi Sarkis , Hao Xu
发明人： Changlong Xu , Liangming Wu , Jian Li , Kai Chen , Jing Jiang , Gabi Sarkis , Hao Xu
IPC分类号： H04L1/00 , H04L1/18
摘要： Methods, systems, and devices for wireless communications are described. An encoder of a wireless device may receive a transport block (TB) for transmission and segment the transport block into a set of multiple, smaller data segments that respectively In correspond to a plurality of code blocks of the TB. The encoder may generate a code block level (CB-level) error detection code (EDC) for a subset of the data segments. The encoder may generate a transport block-level (TB-level) EDC for the TB using the data segments. Each of the code blocks (CBs) may be of the same size and may include one of the data segments. A subset of the CBs may include a data segment from the subset of the data segments and one of the CB-level EDCs. The remaining CBs that are not part of the subset may include a remaining data segments and the TB-level EDC.

12. 发明授权

US11038624B2 User-specific scrambling for polar codes 有权
公开(公告)号：US11038624B2
公开(公告)日：2021-06-15
申请号：US16764957
申请日：2017-11-17
申请人： Qualcomm Incorporated , Kai Chen , Changlong Xu , Jing Jiang , Gabi Sarkis , Hao Xu
发明人： Kai Chen , Changlong Xu , Jing Jiang , Gabi Sarkis , Hao Xu
IPC分类号： H04L1/00
摘要： A transmitting device may identify a set of bit locations of a polar code for encoding an input vector based at least in part on a reliability order of the bit locations, where the input vector includes a set of payload bits. The transmitting device may map bits of the input vector to respective bit locations of the identified set of bit locations and may apply a masking operation to a subset of bits of the input vector that is mapped to a most reliable subset of the set of bit locations. The transmitting device may perform an encoding operation according to the mapped input vector to generate a codeword for transmission. A receiving device may perform complementary operations to obtain the payload bits of the input vector. Based on the described techniques, a false alarm rate for the receiving device may be suppressed.

13. 发明申请

US20210050865A1 SELF-DECODABLE REDUNDANCY VERSIONS FOR POLAR CODES 有权
公开(公告)号：US20210050865A1
公开(公告)日：2021-02-18
申请号：US16968920
申请日：2019-02-14
申请人： Jian LI , Changlong XU , Liangming WU , Kai CHEN , Hao XU , Jing JIANG , Joseph Binamira SORIAGA , Qualcomm Incorporated
发明人： Jian Li , Changlong Xu , Liangming Wu , Kai Chen , Hao Xu , Jing Jiang , Joseph Binamira Soriaga
IPC分类号： H03M13/13 , H04L1/08 , H04L1/00
摘要： Methods, systems, and devices for wireless communications are described. A transmitting device, such as a base station or a user equipment (UE), may generate a first set of encoded bits using a polar code. The transmitting device may transmit the first set of encoded bits to a receiving device, but the receiving device may unsuccessfully receive the transmission. The transmitting device may prepare a retransmission by generating a second set of encoded bits. In some cases, the transmitting device may copy information bits from the first transmission to polarized channels when generating the polar code for the retransmission. The transmitting device may copy information bits based on how the information bits were assigned for the first transmission as well as the block length. The transmitting device may copy information bits such that the retransmission is self-decodable.

14. 发明申请

US20200313802A1 DYNAMIC TERMINATION OF HYBRID AUTOMATIC REPEAT REQUEST RETRANSMISSIONS 审中-公开
公开(公告)号：US20200313802A1
公开(公告)日：2020-10-01
申请号：US16765557
申请日：2017-11-20
申请人： Changlong XU , Hao XU , Jing JIANG , Qualcomm Incorporated
发明人： Changlong Xu , Hao Xu , Jing Jiang
IPC分类号： H04L1/18 , H04L1/20 , H04W76/27 , H04W72/08
摘要： Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support hybrid automatic repeat request (HARQ) schemes to improve the likelihood that information is received correctly over a wireless communications link. In HARQ, when a transmitting device determines that a receiving device failed to successfully decode a transmission of information, the transmitting device may retransmit the information to the receiving device. In some cases, HARQ techniques may be used for communications associated with different types of services. In such cases, to keep the latency of communications within a latency budget for a particular type of service, wireless devices may utilize the techniques described herein to dynamically terminate HARQ retransmissions. For instance, a transmitting device may avoid retransmitting information when an amount of time that has elapsed since an original transmission of the information has exceeded the latency budget.

15. 发明授权

US10193678B2 Muting schemes for channel state information reference signal and signaling thereof 有权
公开(公告)号：US10193678B2
公开(公告)日：2019-01-29
申请号：US13077835
申请日：2011-03-31
申请人： Kapil Bhattad , Wanshi Chen , Peter Gaal , Hao Xu
发明人： Kapil Bhattad , Wanshi Chen , Peter Gaal , Hao Xu
IPC分类号： H04L5/00
摘要： A method of wireless communication is provided which includes establishing a time-frequency muting pattern including at least one data resource element (RE) and transmitting information indicating the time-frequency muting pattern to a user equipment. In some designs, the muting pattern is established by grouping a plurality of resource elements into muting groups such that the time-frequency muting pattern includes the muting groups.

16. 发明申请

US20180278397A1 VIRTUAL TIME-DOMAIN MULTIPLEXING FOR REFERENCE SIGNALS AND DATA WITH MODIFIED CYCLIC PREFIX 有权
公开(公告)号：US20180278397A1
公开(公告)日：2018-09-27
申请号：US15920339
申请日：2018-03-13
申请人： Seyong Park , Jing Sun , Xiao Feng Wang , Hao Xu , Tao Luo , Yi Huang , Renqiu Wang
发明人： Seyong Park , Jing Sun , Xiao Feng Wang , Hao Xu , Tao Luo , Yi Huang , Renqiu Wang
IPC分类号： H04L5/00 , H04J3/00
摘要： Aspects of the disclosure relate to methods and apparatus of time-domain multiplexing (TDM) for reference signals (RS) and data using a modified cyclic prefix. A reference signal (RS) and data are multiplexed either in a single symbol or in two time consecutive symbols that respectively including the RS and data. The cyclic prefix (CP) is added to the single symbol using a portion of the RS or to a first symbol of the two time consecutive symbols using a portion of the RS. The CP may be copied from the RS or the end of the symbol, but not the data, in a manner that affords a virtual Time Division Multiplexing (TDM) of the RS and data before discrete Fourier transform (DFT) spreading is performed in a transceiver to provide lower peak to average power ratios and no Inter-symbol interference.

17. 发明授权

US09635624B2 Discovery reference signal design for coordinated multipoint operations in heterogeneous networks 有权
公开(公告)号：US09635624B2
公开(公告)日：2017-04-25
申请号：US13401660
申请日：2012-02-21
申请人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
发明人： Hao Xu , Xiliang Luo , Peter Gaal , Tingfang Ji , Kapil Bhattad
IPC分类号： H04W52/40 , H04B7/024 , H04W52/50 , H04W52/24 , H04L5/00
CPC分类号： H04W52/40 , H04B7/024 , H04L5/0048 , H04W52/242 , H04W52/244 , H04W52/50
摘要： Certain aspects of the present disclosure relate to techniques that may be used to discover transmission points in heterogeneous networks (HetNet) that involves coordinated multi-point (CoMP) transmission and reception. Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE). The method generally includes receiving a configuration indicating distinct resources used by each of a plurality of different transmission points involved in coordinated multipoint (CoMP) operations with the UE for transmitting discovery reference signals (RSs), receiving distinct discovery RSs transmitted from the plurality of different transmission points, and calculating at least one of path loss or reference signal received power (RSRP) estimations for each of the transmission points based on the distinct discovery RSs.

18. 发明授权

US09559820B2 Feedback reporting based on channel state information reference signal (CSI-RS) groups 有权
标题翻译：基于信道状态信息参考信号（CSI-RS）组的反馈报告
公开(公告)号：US09559820B2
公开(公告)日：2017-01-31
申请号：US13359154
申请日：2012-01-26
申请人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
发明人： Stefan Geirhofer , Tao Luo , Wanshi Chen , Peter Gaal , Hao Xu , Kapil Bhattad , Tingfang Ji
IPC分类号： H04L12/22 , H04L5/00
CPC分类号： H04L5/0048
摘要： In macro/RRH setups, channel state information reference signals (CSI-RS) and demodulation reference signals (DM-RS) may be used to decouple control and data transmission. Data transmission (e.g. for LTE Rel 10 and beyond) may be based on CSI-RS and DM-RS, while control may be received from a different set of cells or TxPs via CRS. Certain aspects of the present disclosure introduce a reporting framework, in which configuration of data-serving cells/TxPs may be carried out based on CSI-RS. In certain aspects, a new concept of CSI-RS groups, i.e., a set of CSI-RS ports that a UE considers as one group for precoding matrix indicator (PMI)/channel quality indicator (CQI)/rank indicator (RI) reporting, may be defined.
摘要翻译：在宏/ RRH设置中，可以使用信道状态信息参考信号（CSI-RS）和解调参考信号（DM-RS）来去耦合控制和数据传输。数据传输（例如，对于LTE Rel 10及其以外）可以基于CSI-RS和DM-RS，而可以经由CRS从不同的小区集合或TxP接收控制。本公开的某些方面引入了报告框架，其中可以基于CSI-RS来执行数据服务小区/ TxP的配置。在某些方面，CSI-RS组的新概念，即UE认为一组用于预编码矩阵指示符（PMI）/信道质量指示符（CQI）/秩指示符（RI）报告）的一组CSI-RS端口，可以被定义。

19. 发明授权

US09519639B2 Community translation of user-generated content 有权
标题翻译：用户生成内容的社区翻译
公开(公告)号：US09519639B2
公开(公告)日：2016-12-13
申请号：US13492621
申请日：2012-06-08
申请人： James M. Leszczenski , Hao Xu , Javier Olivan Lopez
发明人： James M. Leszczenski , Hao Xu , Javier Olivan Lopez
IPC分类号： G06F17/28 , G06F17/00 , G06Q10/06
CPC分类号： G06F17/289 , G06F17/275 , G06F17/2836 , G06F17/2854 , G06Q10/06 , G06Q50/01
摘要： Translations for items of user-generated content are received from one or more users associated with a social networking system and/or one or more machine-generated translations. Each translation may translate a content item from a source or original language to a target language. Votes regarding the suitability of the translations are received from one or more users. In one aspect, the option to provide translations and/or vote on translations is provided to those users that are determined to be competent in the source language of the item of user-generated content. Determination of whether a user is competent in the source language can be based on the user profile of the user, the user-generated content of the user, the language competencies of the user's connections, and/or other social signals.
摘要翻译：从与社交网络系统相关联的一个或多个用户和/或一个或多个机器生成的翻译接收到用户生成内容的项目的翻译。每个翻译可以将内容项目从源语言或原始语言翻译成目标语言。从一个或多个用户收到关于翻译的适用性的投票。在一方面，向确定为具有用户生成内容项目的源语言的能力的用户提供了提供翻译和/或投票的选项。确定用户是否具有源语言的能力可以基于用户的用户简档，用户生成的用户内容，用户的连接的语言能力和/或其他社交信号。

20. 发明授权

US09337962B2 Continuous mode operation for wireless communications systems 有权
标题翻译：无线通信系统的连续模式操作
公开(公告)号：US09337962B2
公开(公告)日：2016-05-10
申请号：US13029072
申请日：2011-02-16
申请人： Hao Xu , Madhavan S. Vajapeyam , Naga Bhushan , Wanshi Chen , Durga Prasad Malladi
发明人： Hao Xu , Madhavan S. Vajapeyam , Naga Bhushan , Wanshi Chen , Durga Prasad Malladi
IPC分类号： H04L1/16 , H04L1/18
CPC分类号： H04L1/1657 , H04L1/1854 , H04L1/1887
摘要： Certain aspects of the present disclosure propose techniques for a continuous communications mode in a wireless communications system. The technique may involve processing bundles of transmission time interval (TTI) transmissions having transmission times that are mapped to voice-over-internet-protocol (VOIP) arrival times, wherein the bundled TTI transmissions are processed without acknowledgements to indicate the bundled TTI transmissions have been successfully received.
摘要翻译：本公开的某些方面提出了用于无线通信系统中的连续通信模式的技术。该技术可以涉及处理具有映射到互联网协议（VOIP）到达时间的传输时间的传输时间间隔（TTI）传输束，其中，经过捆绑的TTI传输被处理而没有确认以指示捆绑的TTI传输具有已成功收到。

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