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61. 发明申请

WO2017166940A1 CHANNEL COVARIANCE FEEDBACK FOR ENHANCED FD-MIMO 审中-公开
公开(公告)号：WO2017166940A1
公开(公告)日：2017-10-05
申请号：PCT/CN2017/073872
申请日：2017-02-17
申请人： QUALCOMM INCORPORATED , CHEN, Bo , WEI, Chao , WU, Liangming , WANG, Neng
发明人： CHEN, Bo , WEI, Chao , WU, Liangming , WANG, Neng
IPC分类号： H04B7/06 , H04B7/26
摘要： Channel covariance feedback is disclosed for enhanced full-dimension multiple input, multiple output (eFD-MIMO) systems. Channel state information (CSI) reference signal (CSI-RS) feedback operations are implemented using spatial covariance feedback of a covariance estimate. After obtaining a set of orthogonal basis vectors, a user equipment (UE) measures the CSI-RS from a base station and determines the spatial covariance matrix from the signal. The UE may then compress the spatial covariance matrix into a lower-dimension covariance estimate matrix using the orthogonal basis vectors. The lower-dimension matrix along with element-wise quantization allows for feedback of spatial covariance for eFD-MIMO systems without excessive feedback overhead.

62. 发明申请

WO2017166288A1 CSI-RS DESIGN FOR LARGER NUMBER OF ANTENNA PORTS FOR EFD-MIMO 审中-公开
标题翻译：针对EFD-MIMO的CSI-RS设计可提供更多的天线端口
公开(公告)号：WO2017166288A1
公开(公告)日：2017-10-05
申请号：PCT/CN2016/078313
申请日：2016-04-01
申请人： QUALCOMM INCORPORATED , WEI, Chao , WU, Liangming , CHEN, Bo
发明人： WEI, Chao , WU, Liangming , CHEN, Bo
IPC分类号： H04W24/10
摘要： Design of channel state information (CSI) reference signal (CSI-RS) for larger number of antenna ports in enhanced full dimension multiple input, multiple output (eFD-MIMO) systems is discussed. Compatible base stations may identify a first CSI-RS resource configured for a first number of antenna ports and aggregate two or more CSI-RS resource configurations into the first CSI-RS resource. The a total number of antenna ports of the aggregated CSI-RS resource configurations equals the number of antenna ports of the CSI-RS resource and at least one of the two or more CSI-RS resource configurations has a different number of antenna ports than the other resource configurations. The base station may map the first number of antenna ports of the first CSI-RS resource to a first set of resource elements according to the CSI-RS resource configurations. The base station will then transmit the CSI-RS using the first CSI-RS resource.
摘要翻译：讨论了增强型全维度多输入多输出（eFD-MIMO）系统中针对较大数目的天线端口的信道状态信息（CSI）参考信号（CSI-RS）的设计。兼容的基站可以识别为第一数目的天线端口配置的第一CSI-RS资源并且将两个或多个CSI-RS资源配置聚合到第一CSI-RS资源中。聚合的CSI-RS资源配置的天线端口的总数等于CSI-RS资源的天线端口的数量，并且两个或更多个CSI-RS资源配置中的至少一个具有不同于其他资源配置。基站可根据CSI-RS资源配置将第一CSI-RS资源的第一数量的天线端口映射到第一组资源元素。基站然后将使用第一CSI-RS资源发送CSI-RS。

63. 发明申请

WO2017166219A1 CHANNEL COVARIANCE FEEDBACK FOR ENHANCED FD-MIMO 审中-公开
标题翻译：增强型FD-MIMO的信道协方差反馈
公开(公告)号：WO2017166219A1
公开(公告)日：2017-10-05
申请号：PCT/CN2016/078179
申请日：2016-03-31
申请人： QUALCOMM INCORPORATED , CHEN, Bo , WEI, Chao , WU, Liangming , WANG, Neng
发明人： CHEN, Bo , WEI, Chao , WU, Liangming , WANG, Neng
IPC分类号： H04B7/04
摘要： Channel covariance feedback is disclosed for enhanced full-dimension multiple input, multiple output (eFD-MIMO) systems. Channel state information (CSI) reference signal (CSI-RS) feedback operations are implemented using spatial covariance feedback of a covariance estimate. After obtaining a set of orthogonal basis vectors, a user equipment (UE) measures the CSI-RS from a base station and determines the spatial covariance matrix from the signal. The UE may then compress the spatial covariance matrix into a lower-dimension covariance estimate matrix using the orthogonal basis vectors. The lower-dimension matrix along with element-wise quantization allows for feedback of spatial covariance for eFD-MIMO systems without excessive feedback overhead.
摘要翻译：针对增强型全维度多输入多输出（eFD-MIMO）系统公开了信道协方差反馈。信道状态信息（CSI）参考信号（CSI-RS）反馈操作使用协方差估计的空间协方差反馈来实现。在获得一组正交基向量之后，用户设备（UE）测量来自基站的CSI-RS并从该信号中确定空间协方差矩阵。 UE然后可以使用正交基向量将空间协方差矩阵压缩成较低维协方差估计矩阵。较低维矩阵和元素级量化允许eFD-MIMO系统的空间协方差反馈，而没有过多的反馈开销。

64. 发明申请

WO2017162050A1 ENHANCED HYBRID CSI-RS FOR FD-MIMO 审中-公开
公开(公告)号：WO2017162050A1
公开(公告)日：2017-09-28
申请号：PCT/CN2017/076313
申请日：2017-03-10
申请人： QUALCOMM INCORPORATED , WEI, Chao , CHEN, Bo , WU, Liangming , HOU, Jilei
发明人： WEI, Chao , CHEN, Bo , WU, Liangming , HOU, Jilei
IPC分类号： H04W72/04
摘要： Enhanced hybrid channel state information (CSI) reference signal (CSI-RS) for full dimension multiple input, multiple output (FD-MIMO) is discussed in which a base station configures a first CSI-RS resource for non-precoded CSI-RS and a second CSI-RS resource for beamformed CSI-RS. The first and second CSI-RS resources are associated with the same CSI process in a hybrid CSI-RS operation. The UE provides a first CSI report including a first rank and precoding matrix indicator (PMI) based on measurement of the non-precoded CSI-RS. The base station may use this first CSI report for the beamforming of the beamformed CSI-RS. The UE further provides a second CSI report including a second rank, second PMI, and CQI based on measurement of the beamformed CSI-RS. Additional aspects may provide for a base station to aggregate multiple two-port CSI-RS resource configurations into a single multiport CSI-RS resource configuration that may be dynamically shared between different UEs.

65. 发明申请

WO2022151379A1 SELECTION OF SOUNDING REFERENCE SIGNAL RESOURCES ACROSS DIFFERENT USAGES 审中-公开
公开(公告)号：WO2022151379A1
公开(公告)日：2022-07-21
申请号：PCT/CN2021/072232
申请日：2021-01-15
申请人： QUALCOMM INCORPORATED , XIAO, Kexin , ABDELGHAFFAR, Muhammad Sayed Khairy , ZHANG, Yu , WANG, Runxin , MANOLAKOS, Alexandros , CHEN, Bo , MUKKAVILLI, Krishna Kiran , KWON, Hwan Joon , TOKGOZ, Yeliz
发明人： XIAO, Kexin , ABDELGHAFFAR, Muhammad Sayed Khairy , ZHANG, Yu , WANG, Runxin , MANOLAKOS, Alexandros , CHEN, Bo , MUKKAVILLI, Krishna Kiran , KWON, Hwan Joon , TOKGOZ, Yeliz
IPC分类号： H04L5/00 , H04W72/04
摘要： Aspects of the disclosure relate to utilizing SRS resources for various types of usages and configuring transmit power on the SRS resources. In an aspect, a user equipment (UE) may determine whether a time gap between a first sounding reference signal (SRS) resource for a first usage and a second SRS resource for a second usage in time is less than a time threshold. Further, the UE may transmit an SRS utilizing one of the first SRS resource or the second SRS resource for both the first usage and the second usage, in response to determining that the time gap is less than the time threshold.

66. 发明申请

WO2022041196A1 CONFIGURABLE METRICS FOR CHANNEL STATE COMPRESSION AND FEEDBACK 审中-公开
公开(公告)号：WO2022041196A1
公开(公告)日：2022-03-03
申请号：PCT/CN2020/112476
申请日：2020-08-31
申请人： QUALCOMM INCORPORATED , VITTHALADEVUNI, Pavan Kumar , YOO, Taesang , BHUSHAN, Naga , NAMGOONG, June , CHEN, Bo , MA, Ruifeng , MUKKAVILLI, Krishna Kiran , JI, Tingfang
发明人： VITTHALADEVUNI, Pavan Kumar , YOO, Taesang , BHUSHAN, Naga , NAMGOONG, June , CHEN, Bo , MA, Ruifeng , MUKKAVILLI, Krishna Kiran , JI, Tingfang
IPC分类号： H04B7/04
摘要： Methods, systems, and devices for wireless communications are described. Generally, the described techniques at a user equipment (UE) provide for efficiently reporting channel state information (CSI) to a base station with an appropriate level of accuracy. In particular, the base station may indicate a level of accuracy to the UE for reporting CSI. The UE may encode the CSI using a first neural network, and the base station may decode the CSI using a second neural network. The first and second neural networks may form a neural network pair, and the UE may train the neural network pair based on the level of accuracy indicated by the base station. For example, the base station may indicate a loss function corresponding to a level of accuracy with which CSI is to be reported by the UE, and the UE may train the neural network pair using the loss function.

67. 发明申请

WO2021218824A1 FRAME STRUCTURE DESIGN FOR DOWNLINK TDD-TDD CARRIER AGGREGATION WITH PUSCH-LESS CELL 审中-公开
公开(公告)号：WO2021218824A1
公开(公告)日：2021-11-04
申请号：PCT/CN2021/089366
申请日：2021-04-23
申请人： QUALCOMM INCORPORATED , CHEN, Bo , NAN, Mingkai , GOROKHOV, Alexei Yurievitch
发明人： CHEN, Bo , NAN, Mingkai , GOROKHOV, Alexei Yurievitch
IPC分类号： H04L5/00
摘要： Wireless communications systems and methods related to transmitting communication signals with a carrier aggregated (CA) system TDD bands of a primary carrier component (PCC) and a secondary carrier component (SCC) PUSCH-less cell are provided. In particular, a CA frame structure with a PCC primary frame and an SCC secondary frame where a sounding reference signal (SRS) transmitted on the SCC secondary frame corresponds to a downlink slot on the PCC primary frame to avoid throughput loss. In some embodiments, the CA frame can be arranged such that at least one of the uplink slots on the PCC frame corresponds with downlink slots on the SCC frame.

68. 发明申请

WO2021217432A1 FRAME STRUCTURE DESIGN FOR DOWN-LOAD TDD-TDD CARRIER AGGREGATION WITH PUSCH-LESS CELL 审中-公开
公开(公告)号：WO2021217432A1
公开(公告)日：2021-11-04
申请号：PCT/CN2020/087537
申请日：2020-04-28
申请人： QUALCOMM INCORPORATED , CHEN, Bo , NAN, Mingkai , GOROKHOV, Alexei Yurievitch
发明人： CHEN, Bo , NAN, Mingkai , GOROKHOV, Alexei Yurievitch
IPC分类号： H04W72/12
摘要： Wireless communications systems and methods related to transmitting communication signals with a carrier aggregated (CA) system TDD bands of a primary carrier component (PCC) and a secondary carrier component (SCC) PUSCH-less cell are provided. In particular, a CA frame structure with a PCC primary frame and an SCC secondary frame where a sounding reference signal (SRS) transmitted on the SCC secondary frame corresponds to a download slot on the PCC primary frame to avoid throughput loss.

69. 发明申请

WO2020252613A1 SYSTEM AND METHOD THAT FACILITATES ENHANCING CHANNEL QUALITY INDICATOR (CQI) FEEDBACK 审中-公开
公开(公告)号：WO2020252613A1
公开(公告)日：2020-12-24
申请号：PCT/CN2019/091474
申请日：2019-06-17
申请人： QUALCOMM INCORPORATED , CHEN, Bo , VITTHALADEVUNI, Pavan Kumar , ZHANG, Yu , MA, Ruifeng
发明人： CHEN, Bo , VITTHALADEVUNI, Pavan Kumar , ZHANG, Yu , MA, Ruifeng
IPC分类号： H04L1/06 , H04J3/16
摘要： Aspects directed towards enhancing channel quality indicator (CQI) feedback are disclosed. In one example, a determination is made of a first CQI associated with a first transmission layer and a second CQI associated with a second transmission layer. At least one delta CQI is ascertained, which is a ratio of the second CQI and first CQI. A channel state information (CSI) report that includes the at least one delta CQI is then transmitted on an uplink channel. In another example, a user equipment (UE) is configured to determine a first CQI associated with a first transmission layer and a second CQI associated with a second transmission layer. The UE is instructed to ascertain at least one delta CQI, which is a ratio of the second CQI and first CQI. A CSI report that includes the at least one delta CQI is then received from the UE.

70. 发明申请

WO2020154832A1 HYBRID CHANNEL STATE FEEDBACK 审中-公开
公开(公告)号：WO2020154832A1
公开(公告)日：2020-08-06
申请号：PCT/CN2019/073361
申请日：2019-01-28
申请人： QUALCOMM INCORPORATED , SORIAGA, Joseph Binamira , VITTHALADEVUNI, Pavan Kumar , CHEN, Bo , MA, Ruifeng , ZHANG, Yu , MANOLAKOS, Alexandros , JI, Tingfang
发明人： SORIAGA, Joseph Binamira , VITTHALADEVUNI, Pavan Kumar , CHEN, Bo , MA, Ruifeng , ZHANG, Yu , MANOLAKOS, Alexandros , JI, Tingfang
IPC分类号： H04W72/04 , H04B7/0456
摘要： Methods, systems, and devices for wireless communications are described. Techniques described herein provide for a user equipment (UE) receiving a set of downlink reference signals associated with a downlink channel. In some cases, the set of downlink reference signals may include a channel state information reference signals (CSI-RS). The UE may calculate a transmission rank and a channel quality based on the received set of downlink reference signals. In some cases, the indication of the transmission rank may include a rank indication (RI), and the indication of the channel quality includes a channel quality indicator (CQI). The UE may then transmit the indications of the transmission rank and the channel quality using an uplink control channel, and may transmit an indication of a remaining channel state feedback using a precoded uplink reference signal.

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