公开(公告)号：US11863494B2

公开(公告)日：2024-01-02

申请号：US17309994

申请日：2020-01-14

Applicant: QUALCOMM Incorporated

Inventor： Liangming Wu ,  Chenxi Hao ,  Yu Zhang ,  Min Huang ,  Qiaoyu Li ,  Parisa Cheraghi ,  Lei Xiao

IPC: H04L5/00 ,  H04W72/02 ,  H04W72/0453

CPC classification number: H04L5/0057 ,  H04W72/02 ,  H04W72/0453

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that an enhanced type-II channel state information (CSI) report configuration, associated with transmitting CSI feedback to a base station, is to be overridden; and transmit, based at least in part on determining that the enhanced type-II CSI report configuration is to be overridden, a CSI report using another CSI report configuration, wherein the CSI report includes the CSI feedback and an indication that the enhanced type-II CSI report configuration has been overridden. Numerous other aspects are provided.

公开(公告)号：US11799606B2

公开(公告)日：2023-10-24

申请号：US17284728

申请日：2018-11-01

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu Li ,  Yu Zhang ,  Yi Huang ,  Chenxi Hao ,  Liangming Wu ,  Hao Xu

IPC: H04L5/00 ,  H04W76/11 ,  H04L1/1607 ,  H04L1/1867 ,  H04W72/1263 ,  H04L27/26 ,  H04W72/21 ,  H04W72/23 ,  H04W72/542

CPC classification number: H04L5/0051 ,  H04L1/1614 ,  H04L1/1896 ,  H04L27/2602 ,  H04W72/1263 ,  H04W72/21 ,  H04W72/23 ,  H04W72/542 ,  H04W76/11 ,  H04L27/261

Abstract: A method in accordance with aspects of the disclosure comprises receiving a plurality of downlink control information (DCI) signals, wherein each DCI signal is associated with a Demodulation Reference Signal (DMRS) Port Group (DMRS-PG) of a plurality of DMRS-PGs, and each DCI signal within the plurality of DCI signals contains a DMRS-PG Identifier (DMRS-PGID) identifying the associated DMRS-PG, performing one or more measurements associated with the each DCI signal, and generating a multi-port-group uplink control information (UCI) signal based on the one or more measurements associated with the each DCI, wherein the multi-port-group UCI signal contains an indication of whether the each DCI is successfully received. The indication can be explicitly contained in the UCI, or implicitly realized using scrambling sequences associated with DMRS-PGs to scramble the UCI.

公开(公告)号：US11785602B2

公开(公告)日：2023-10-10

申请号：US16623362

申请日：2018-06-13

Applicant: Qualcomm Incorporated

Inventor： Liangming Wu ,  Yu Zhang ,  Chao Wei ,  Chenxi Hao ,  Wanshi Chen

IPC: H04W72/21 ,  H04L1/00 ,  H04L5/00

CPC classification number: H04W72/21 ,  H04L1/0026 ,  H04L5/0055

Abstract: Methods, systems, and devices are described for wireless communications that support transmitting channel state information (CSI) feedback utilizing flexible uplink control resources. A method may include determining a size of a frequency subband corresponding to components of a CSI feedback report based on configuration signaling or a size of allocated uplink control resources. A method may include encoding a CSI report into a single packet and transmitting the single packet over uplink control resources. A method may include encoding a first plurality of components of a CSI report in a first packet, encoding a second plurality of components of the CSI report in a second packet, and mapping the packets to uplink control resources. A method may include transmitting a first plurality of components of a CSI report on a first slot and a second plurality of components of the CSI report on one or more subsequent slots.

公开(公告)号：US11757514B2

公开(公告)日：2023-09-12

申请号：US17853457

申请日：2022-06-29

Applicant: QUALCOMM Incorporated

Inventor： Liangming Wu ,  Yu Zhang ,  Chenxi Hao

IPC: H04B7/06 ,  H04W72/1268 ,  H04W72/23

CPC classification number: H04B7/0626 ,  H04W72/1268 ,  H04W72/23

Abstract: A user equipment (UE) may be configured with a first set of indexed timing offsets for determining offsets between uplink grants and uplink data transmissions and a second set of indexed timing offsets for determining offsets between an aperiodic channel state information (CSI) trigger and transmission of an aperiodic CSI report. A UE may receive both an uplink grant for an uplink data transmission and an aperiodic CSI report trigger. The UE may determine a timing offset for transmission of both the uplink data transmission and the aperiodic CSI report. The timing offset may be based at least in part on the first set of indexed timing offsets, the second set of indexed timing offsets, or a third set of indexed timing offsets for joint transmission of uplink data and aperiodic CSI. The UE may transmit the uplink data transmission and the aperiodic CSI report according to the timing offset.

公开(公告)号：US20230268968A1

公开(公告)日：2023-08-24

申请号：US18001369

申请日：2020-08-07

Applicant: QUALCOMM Incorporated

Inventor： Yu Zhang ,  Chenxi Hao ,  Kazuki Takeda ,  Lei Xiao ,  Alexandros Manolakos ,  Huilin Xu

IPC: H04B7/06 ,  H04W24/10 ,  H04L5/00

CPC classification number: H04B7/0626 ,  H04L5/0057 ,  H04W24/10

Abstract: A configuration of cross-carrier channel state information (CSI) reporting is disclosed. A user equipment (UE) may be configured for CSI reporting, which includes multiple trigger states, in which some of these trigger states include at least one carrier indicator identifying at least one component carrier (CC) for CSI measurement. Upon receipt of a downlink control information (DCI) message including identification of one of the trigger states, the UE identifies at least one CSI report configuration which may be identified with an associated CC and identification of at least one CSI resource setting identified with the CC for each of the CSI report configurations. The UE may then perform CSI measurement for the identified CC based on the CSI report configuration and resource setting. The UE may then signal the CSI report, including the CSI measurement, to a serving base station.

公开(公告)号：US20230247623A1

公开(公告)日：2023-08-03

申请号：US18004531

申请日：2020-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Chao Wei ,  Fang Yuan ,  Liangming Wu ,  Wanshi Chen ,  Hao Xu

IPC: H04W72/1268 ,  H04W72/02 ,  H04W72/21

CPC classification number: H04W72/1268 ,  H04W72/02 ,  H04W72/21

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting a channel state information (CSI) report from a user equipment (UE). The CSI report may be a UE initiated CSI report or may be based on a downlink grant. The UE may determine to transmit the CSI report in response to a measurement of a CSI measurement resource or in response to a downlink grant requesting the CSI. The UE may determine a reserved uplink resource to carry the CSI based at least in part on configurations associated with the CSI report. The UE may transmit the CSI report on the determined uplink resource.

公开(公告)号：US11658706B2

公开(公告)日：2023-05-23

申请号：US17424088

申请日：2020-01-22

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Yu Zhang ,  Min Huang ,  Chao Wei

IPC: H04B7/0417 ,  H04B7/0456 ,  H04L5/00

CPC classification number: H04B7/0417 ,  H04B7/0456 ,  H04L5/0092

Abstract: Certain aspects of the present disclosure provide techniques for channel state information (CSI) processing for fine granularity CSI. A method for wireless communications by a user equipment (UE) includes receiving a CSI reporting configuration. The CSI reporting configuration includes a number of frequency domain (FD) units and a FD unit size for CSI reporting. The UE determines a number of CSI processing units at the UE to use for processing the CSI report based on the number of FD units or the FD unit size for the CSI report. The UE processes the CSI report based on the determined number CSI processing units. In another method, the UE determines at least one threshold to use for determining whether to update a CSI report based on the number of FD units or the FD unit size for CSI reporting.

公开(公告)号：US11595097B2

公开(公告)日：2023-02-28

申请号：US17429488

申请日：2020-02-15

Applicant: Qualcomm Incorporated

Inventor： Bo Chen ,  Yuwei Ren ,  Liangming Wu ,  Yu Zhang ,  Ruifeng Ma ,  Chenxi Hao ,  Renqiu Wang ,  Hao Xu

IPC: H04B7/02 ,  H04B7/06 ,  H04B7/0456 ,  H04L25/02

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform channel state information (CSI) measurements on one or more reference signal transmissions received from a base station. Based on the CSI measurements, the UE may generate a CSI report, and the UE may transmit the CSI report to the base station. In some cases, the generated CSI report may include a first portion and a second portion. The first portion may indicate whether the second portion of the CSI report includes full-band CSI feedback or partial-band CSI feedback. The second portion may provide the CSI feedback for one or more identified sub-bands. In some cases, the second portion may include a sub-band index indicating the identified sub-bands. Additionally or alternatively, the second portion may include a bitmap indicating a correspondence between multiple CSI feedback values and multiple corresponding sub-band indexes.

公开(公告)号：US20220399924A1

公开(公告)日：2022-12-15

申请号：US17887958

申请日：2022-08-15

Applicant: QUALCOMM Incorporated

Inventor： Chenxi Hao ,  Juan Montojo ,  Yu Zhang ,  Chao Wei ,  Wanshi Chen

IPC: H04B7/06 ,  H04W76/27 ,  H04W72/04

Abstract: The described techniques relate to improved methods, systems, devices, or apparatuses that support channel state information feedback for semi-open-loop and open-loop schemes. The described techniques provide for a user equipment (UE) to determine an open-loop, semi-open-loop, or closed-loop transmission scheme for deriving channel quality information (CQI). In the case of determined open-loop transmission scheme, the UE may select a transmission scheme corresponding to a time offset value and a precoder cycling granularity value. The UE may determine one or more of a time offset value, a precoder cycling granularity value, and a precoding matrix indicator (PMI) for a channel state information (CSI) report, and generate CQI accordingly. Additionally, the UE may include the determined values in the CSI report to indicate the transmission scheme used for the CQI derivation. Based on the CQI, the base station can then determine the transmission scheme and perform link adaption accordingly.

公开(公告)号：US20220329306A1

公开(公告)日：2022-10-13

申请号：US17853457

申请日：2022-06-29

Applicant: QUALCOMM Incorporated

Inventor： Liangming Wu ,  Yu Zhang ,  Chenxi Hao

IPC: H04B7/06 ,  H04W72/12 ,  H04W72/14

Abstract: A user equipment (UE) may be configured with a first set of indexed timing offsets for determining offsets between uplink grants and uplink data transmissions and a second set of indexed timing offsets for determining offsets between an aperiodic channel state information (CSI) trigger and transmission of an aperiodic CSI report. A UE may receive both an uplink grant for an uplink data transmission and an aperiodic CSI report trigger. The UE may determine a timing offset for transmission of both the uplink data transmission and the aperiodic CSI report. The timing offset may be based at least in part on the first set of indexed timing offsets, the second set of indexed timing offsets, or a third set of indexed timing offsets for joint transmission of uplink data and aperiodic CSI. The UE may transmit the uplink data transmission and the aperiodic CSI report according to the timing offset.