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公开(公告)号：US20220295297A1
公开(公告)日：2022-09-15
申请号：US17629151
申请日：2019-07-31
发明人： Shaohua LI , Jianguo LONG
摘要： Methods and apparatuses for time-domain beam-sweeping are disclosed. In one embodiment, a method implemented in a wireless device (WD) includes receiving a CSI report configuration, the CSI-RS resource configuration and the CSI report configuration mapping each of a plurality of time-do-main beam sweeping CSI-RS transmissions in the configured one CSI-RS resource to a corresponding CSI report; receiving at least one of the plurality of time-domain beam sweeping CSI-RS transmissions in the configured one CSI-RS resource; and transmitting at least one CSI report according to the mapping. In another embodiment, a method in a network node includes determining a CSI-RS resource configuration for one CSI-RS resource; determining a CSI report configuration; and transmitting the plurality of time-domain beam sweeping CSI-RS transmissions in the configured one CSI-RS resource according to the mapping.
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公开(公告)号：US20220330175A1
公开(公告)日：2022-10-13
申请号：US17620886
申请日：2019-06-28
发明人： Yongquan QIANG , Hong REN , Jianguo LONG , Shiguang GUO
摘要： According to one or more embodiments, a wireless device configured to report one of a plurality of predefined Channel Quality Indicator (CQI) values is provided. A maximum CQI value of the plurality of predefined CQI values corresponds to any one of a plurality of signal characteristic values greater than or equal to a threshold signal characteristic value. The wireless device includes processing circuitry configured to determine a first signal characteristic value associated with a received signal. The processing circuitry is further configured to if the first signal characteristic value is greater than or equal to the threshold signal characteristic value associated with the maximum CQI value, generate a CQI report indicating: the maximum CQI value, and a power backoff from the first signal characteristic value that results in the threshold signal characteristic value.
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3.发明申请公开(公告)号：US20210344390A1
公开(公告)日：2021-11-04
申请号：US17274358
申请日：2018-09-10
发明人： Jianguo LONG , Hong REN , Ahmed NOUAH , Yongquan QIANG , Israfil BAHCECI
IPC分类号： H04B7/0456 , H04W16/28 , H04W24/02
摘要： Methods, network nodes and wireless device for setting an electrical tilt of an antenna array toward a distribution of wireless devices are disclosed. According to one aspect, a method includes for each of at least one sector of an area covered by the antenna array, determining a function of precoding matrix indicators, PMIs, received from a plurality of WDs in the sector. The method includes determining a current electrical tilt angle of the sector based on the function of PMIs. The method further includes comparing a difference between the current electrical tilt angle of the sector and a previously determined electrical tilt angle of the antenna array to a first threshold, and setting the electrical tilt angle of the antenna array based on the comparison.
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4.发明公开公开(公告)号：US20230141838A1
公开(公告)日：2023-05-11
申请号：US17908049
申请日：2020-03-17
发明人： Jianguo LONG , Shaohua LI , Sebastian FAXÉR
CPC分类号： H04B7/0695 , H04L25/0212 , H04L25/0224
摘要： According to one aspect, a network node configured to communicate with a wireless device is provided. The network node includes processing circuitry configured to: transmit a plurality of beamformed reference signals, each of the plurality of beamformed reference signals being associated with a respective sector of a cell; receive at least one uplink signal from the wireless device ; select one of the plurality of beamformed reference signals for the wireless device to monitor based at least in part on the received at least one uplink signal; and transmit an indication configured to cause the wireless device to monitor the selected one of the plurality of beamformed reference signals.
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5.发明申请公开(公告)号：US20210218445A1
公开(公告)日：2021-07-15
申请号：US17263286
申请日：2018-08-02
发明人： Yongquan QIANG , Ali AFANA , Jianguo LONG , Ahmed NOUAH , Chaocheng TU
IPC分类号： H04B7/0456 , H04B7/06 , H04B7/10
摘要： A network node, wireless device and methods for co-phasing for beamforming using co-phasing matrices for wireless communications are provided. In one example, a network node for co-phasing in beamforming for transmissions is provided. The network node includes processing circuitry including a processor and a memory where the memory contains instructions executable by the processor to configure the network node to: obtain co-phasing information associated with a wireless device, generate at least two co-phasing matrices based on the co-phasing information, and apply the at least two co-phasing matrices to at least two resource structures.
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6.发明申请公开(公告)号：US20210194546A1
公开(公告)日：2021-06-24
申请号：US16955267
申请日：2019-12-20
发明人： Yongquan QIANG , Hong REN , Jianguo LONG , Mats ÅHLANDER
IPC分类号： H04B7/0456 , H04B7/0452
摘要： A method in a network node for Multiple Input Multiple Output (MIMO) is provided. The method comprises: obtaining a precoding matrix indicator (PMI) for a first codebook for use in a Single User Multiple Input Multiple Output (SU-MIMO) transmission; determining a precoding matrix for a second codebook, based on the obtained precoding matrix indicator; and selecting the determined precoding matrix for the second codebook in response to determining that an User Equipment (UE) is scheduled for a Multi-User (MU)-MIMO transmission. A network node for performing this method is also provided.
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公开(公告)号：US20180241521A1
公开(公告)日：2018-08-23
申请号：US15751994
申请日：2015-08-11
CPC分类号： H04L5/0035 , H04B7/024 , H04B7/0626 , H04L5/0044 , H04L5/0057 , H04W16/18
摘要： A node for managing cell coordination is provided. The node includes processing circuitry including a processor, and a memory. The memory contains instructions that, when executed by the processor, configure the processor to determine a cluster of a plurality of cells including a first cell, the cluster of the plurality of cells having a plurality of antennas and determine a channel state information reference signal, CSI-RS, configuration corresponding to a total number of the plurality of antennas. The memory further includes instructions that, when executed by the processor, configure the processor to partition radio resources corresponding to the CSI-RS configuration into a plurality of partitioned radio resources, and cause the first cell to transmit at least one CSI-RS signal according to a first partition of the plurality of partitioned radio resources while muting the radio resources of the remaining plurality of partitioned resources.
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公开(公告)号：US20240014872A1
公开(公告)日：2024-01-11
申请号：US18252227
申请日：2020-12-11
发明人： Yongquan QIANG , Hong REN , Jianguo LONG , Wei WANG
IPC分类号： H04B7/06 , H04B7/0456
CPC分类号： H04B7/0626 , H04B7/0486
摘要： A method, network node and wireless device (WD) for dual codebook configuration and channel state information (CSI) combining for large scale active antenna systems (AAS) are disclosed. According to one aspect, a method in a network node includes triggering the WD to transmit in succession or simultaneously, a horizontal CSI report reporting a horizontal CSI set for a horizontal direction of the array and a vertical CSI report reporting a vertical CSI set for a vertical direction of the array, the horizontal CSI set being mapped to a row of the array and the vertical CSI set being mapped to a column of the array. The method also includes receiving the horizontal and vertical CSI reports from the WD, and combining the horizontal and vertical CSI sets into a combined CSI set for at least one of scheduling and beamforming.
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9.发明申请公开(公告)号：US20230079185A1
公开(公告)日：2023-03-16
申请号：US17802255
申请日：2021-02-22
发明人： Jianguo LONG , Shaohua LI , Yongquan Qiang
IPC分类号： H04B7/0456 , H04B7/10 , H04B17/10 , H04B17/12
摘要： A method and network node for timing error estimation and compensation for Fifth Generation (5G) New Radio (NR) downlink (DL) systems with uncalibrated antennas are provided. According to one aspect, a method in a network node includes transmitting a first Channel State Information Reference Signal (CSI-RS) having a first timing compensation and transmitting a second CSI-RS having a second timing compensation, receiving a CSI-RS resource indicator (CRI) in a CSI report from a wireless device (WD), and determining from the CRI which of the first and second timing compensation results in a greater spectrum efficiency.
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10.发明申请公开(公告)号：US20220416862A1
公开(公告)日：2022-12-29
申请号：US17770785
申请日：2019-10-23
发明人： Jianguo LONG , Shaohua LI
摘要： A method, network node and wireless device for phase error compensation for Fifth Generation downlink systems with four correlated uncalibrated antennas are provided. A method includes applying N incremented phase rotations to one of the four antennas to produce N channel state information reference signal resources, N being an integer greater than 1. The method also includes transmitting N CSI-RS on 4 CSI-RS ports to a wireless device, WD, each of the N CSI-RS resources being transmitted with a different one of the incremented phase rotations. The method further includes receiving from the WD a CSI-RS resource indication that indicates a particular one of the N CSI-RS resources. The method also includes applying, in subsequent transmissions to the WD, a phase rotation to the one of the four antennas, the phase rotation corresponding to the indicated CSI-RS resource.
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