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公开(公告)号：US20230123975A1
公开(公告)日：2023-04-20
申请号：US17793742
申请日：2020-02-14
发明人： Yi Zhang , Chenxi Zhu , Wei Ling , Bingchao Liu
摘要： Apparatus and methods of enhanced CSI feedback for enhanced PDCCH transmission with multiple beams from multiple TRPs are disclosed. The apparatus includes: a receiver that receives a Channel State Information (CSI) report configuration for Physical Downlink Control Channel (PDCCH) transmission using a plurality of transmitting-receiving identities; receives a CSI resource configuration indicating CSI resources from the transmitting-receiving identities; and receives a Reference Signal (RS) and/or a Synchronization Signal Block (SSB) in the CSI resources from the transmitting-receiving identities; a processor that generates a CSI report based on the Reference Signal (RS) and/or the Synchronization Signal Block (SSB) received, in a format according to the CSI report configuration; and a transmitter that transmits the CSI report generated.
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公开(公告)号：US20230048881A1
公开(公告)日：2023-02-16
申请号：US17794508
申请日：2020-01-22
发明人： Chenxi Zhu , Bingchao Liu , Yi Zhang , Wei Ling , Lianhai Wu
IPC分类号： H04L5/00
摘要： Apparatuses, methods, and systems are disclosed for updating SRS spatial relation information. One method includes transmitting first information indicating SRS spatial relation information for an SRS resource. The SRS spatial relation information includes: SRS spatial relation information identifiers; and an SRS spatial relation information reference signal corresponding to each SRS spatial relation information identifier. The method includes transmitting second information indicating an update to the SRS spatial relation information. The second information includes: a serving cell identifier; a bandwidth part identifier; one or more SRS resource identifiers, one or more SRS resource set identifiers, or a combination thereof; and one or more SRS spatial relation information identifiers. Each of the one or more SRS resource identifiers corresponds to each of the one or more SRS spatial relation information identifiers.
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93.发明申请公开(公告)号：US20220377630A1
公开(公告)日：2022-11-24
申请号：US17773564
申请日：2019-11-15
发明人： Lianhai Wu , Bingchao Liu , Jing Han , Haiming Wang , Jie Shi
摘要： The present application is related to a method and apparatus for performing a mobility robustness optimization (MRO) mechanism in a handover procedure of a UE under 3GPP 5G New Radio (NR) technology. A method for wireless communication performed by a UE includes: upon a failure associated with a serving cell of a BS, performing a cell selection procedure to select a cell of another BS, wherein the failure is one of a radio link failure (RLF), a handover (HO) failure, and a conditional handover (CHO) failure; if the selected cell of the abovementioned another BS is not associated with the CHO configuration, performing a RRC re-establishment procedure; if the selected cell of the abovementioned another BS is associated with the CHO configuration, performing a CHO procedure; upon another CHO failure during the CHO procedure, performing a RRC re-establishment procedure; and after entering into a connected state with the abovementioned another BS, transmitting a RLF report to the abovementioned another BS, wherein the RLF report includes both information related to the failure and information related to the abovementioned another CHO failure.
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公开(公告)号：US20220294591A1
公开(公告)日：2022-09-15
申请号：US17631618
申请日：2019-08-01
发明人： Bingchao Liu , Chenxi Zhu , Haipeng Lei , Wei Ling
摘要： Apparatus and methods of Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback for multiple Physical Downlink Control Channel (PDCCH) based multiple Transmit Receive Points (TRP) transmission are disclosed. The apparatus includes: a receiver that receives a plurality of configurations of control resource sets (CORESETs), wherein each CORESET comprises a plurality of resource blocks (RBs) in frequency domain and a plurality of symbols in time domain, and time-frequency resources identified by the CORESET are used to transmit a Downlink Control Information (DCI); a processor that determines a Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback selected from a group consisting of: a separate HARQ-ACK feedback and a joint HARQ-ACK feedback; and a transmitter that transmits the determined HARQ-ACK feedback; wherein the separate HARQ-ACK feedback is transmitted through a plurality of uplink resources; and the joint HARQ-ACK feedback is transmitted through one uplink resource.
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公开(公告)号：US11424793B2
公开(公告)日：2022-08-23
申请号：US17260150
申请日：2018-07-13
发明人： Bingchao Liu , Chenxi Zhu , Lingling Xiao
IPC分类号： H04W72/04 , H04B7/0456 , H04L5/00
摘要： Methods, a base unit and a remote unit are disclosed. A method comprises determining two or more SRS resource sets for codebook or non-codebook based UL transmission of the mobile unit in the condition that the number of antenna ports simultaneously used by the mobile unit for transmitting is smaller than the number of antenna ports simultaneously used by the mobile unit for receiving; and transmitting a trigger associated with the two or more SRS resource sets to the mobile unit to trigger resource transmissions by the mobile unit.
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公开(公告)号：US11411619B2
公开(公告)日：2022-08-09
申请号：US16975019
申请日：2018-02-23
发明人： Hongmei Liu , Chenxi Zhu , Zhennian Sun , Bingchao Liu , Vijay Nangia
IPC分类号： H01Q1/24 , H04B7/0456 , H04L5/00 , H04W72/04
摘要： Apparatuses, methods, and systems are disclosed for determining a precoder for PTRS ports. One method (800) includes receiving (802) information indicating a precoder for transmission. The method (800) includes determining (804) a precoder for each phase tracking reference signal port based on the information. Another method (900) includes transmitting (902) information indicating a precoder for transmission. The method (900) includes receiving (904) one or more phase tracking reference signal ports precoded with the precoder.
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公开(公告)号：US20220216968A1
公开(公告)日：2022-07-07
申请号：US17269143
申请日：2018-08-17
发明人： Bingchao Liu , Chenxi Zhu , Wei Ling , Haipeng Lei
摘要： Methods and apparatuses for SRS enhancement are disclosed. In one embodiment, a method comprises configuring one or more cell IDs for SRS; and sending the configured cell ID(s) for SRS using higher layer signaling. In some embodiment, the method further comprises determining reserved transmission resources only for SRS transmission; and transmitting resource configuration parameters for the reserved transmission resources.
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公开(公告)号：US20220210803A1
公开(公告)日：2022-06-30
申请号：US17610817
申请日：2019-05-13
发明人： Bingchao Liu , Chenxi Zhu , Wei Ling
摘要： Methods and apparatuses for UE grouping are disclosed. A method at a base unit comprises configuring one or more higher layer parameter sets for SRS transmission with at least one of frequency hopping, repetition and antenna switching and transmitting a DCI containing a non-zero SRS request field or a higher layer signaling to trigger a SRS transmission in the symbols in one or more normal subframes.
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公开(公告)号：US11296763B2
公开(公告)日：2022-04-05
申请号：US16759695
申请日：2017-10-26
发明人： Chenxi Zhu , Tyler Brown , Bingchao Liu
摘要： Apparatuses, methods, and systems are disclosed for determining information corresponding to beamforming. One method (1400) includes determining (1402) a grouping arrangement corresponding to a type of beamforming. The type of beamforming includes analog beamforming, digital beamforming, hybrid beamforming, or some combination thereof. The method (1400) includes determining (1404) a set of information corresponding to the grouping arrangement. The set of information includes the type of beamforming. The method (1400) includes transmitting (1406) the set of information to a base unit.
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公开(公告)号：US20220104228A1
公开(公告)日：2022-03-31
申请号：US17603605
申请日：2019-06-26
发明人： Wei Ling , Chenxi Zhu , Bingchao Liu , Lingling Xiao
摘要： Apparatus and methods of scheduling request (SR) transmission and reception in multiple transmit receive points (TRPs) are disclosed. The apparatus includes: a transmitter; and a processor that determines a scheduling request uplink control channel resource configured by higher layer for transmitting a scheduling request in a time interval; wherein the processor further determines a first uplink control information for transmission in a first uplink control channel resource associated with a first identity in the same time interval; the processor further determines whether there is a second uplink control information in a second uplink control channel resource for transmission associated with a second identity in the same time interval; and the processor controls the transmitter to transmit, in the same time interval, one or a combination selected from: the first uplink control channel resource, the scheduling request uplink control channel resource, and the second uplink control channel resource.
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