公开(公告)号：US20230087003A1

公开(公告)日：2023-03-23

申请号：US17759693

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Qiaoyu LI ,  Yu ZHANG ,  Liangming WU ,  Chao WEI ,  Hao XU

IPC: H04L5/00 ,  H04B7/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may receive multiple CSI report configurations that include at least a first CSI report configuration and a second CSI report configuration that are associated with one or more CSI reference resources; determine a dependency between the first CSI report configuration and the second CSI report configuration; and calculate at least one of a first CSI for the first CSI report configuration or a second CSI for the second CSI report configuration based at least in part on an assumption of a joint transmission using the one or more CSI reference resources, wherein the assumption is based at least in part on the determination of the dependency. report at least one of the first CSI in a first CSI report or the second CSI in a second CSI report. Numerous other aspects are provided.

公开(公告)号：US20230062132A1

公开(公告)日：2023-03-02

申请号：US17759969

申请日：2020-02-13

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Min HUANG ,  Wanshi CHEN

IPC: H04W74/08 ,  H04W72/12

Abstract: Wireless communications systems and methods related to multi-transmission-reception point (multi-TRP) precoding matrix indication (PMI) operations are provided. A user equipment (UE) receives a configuration indicating a precoder size parameter for a plurality of transmission-reception points (TRPs). The UE receives, from a first TRP of the plurality of TRPs, a first reference signal. The UE receives, from a second TRP of the plurality of TRPs, a second reference signal, the second TRP being different from first TRP. The UE transmits, to the first TRP or the second TRP, a channel state information (CSI) report including a first feedback component based on the first reference signal and a second feedback component based on the second reference signal, where a combined payload size of the first feedback component and the second feedback component is based on the precoder size parameter.

公开(公告)号：US20230055302A1

公开(公告)日：2023-02-23

申请号：US17797382

申请日：2020-03-27

Applicant: QUALCOMM INCORPORATED

Inventor： Liangming WU ,  Kangqi LIU ,  Changlong XU ,  Jian LI ,  Hao XU

IPC: H04B7/0452 ,  H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit an encoded transmission via a broadcast to multiple user equipment (UE). Subsequently, the multiple UEs may transmit assistance information to the base station based on attempting to decode the broadcasted encoded transmission. If the decoding is unsuccessful for at least one UE, the base station may then transmit an additional encoded transmission via a unicast or multicast message to the UEs that were unsuccessful. Additionally, the base station may transmit configuration information for the multiple UEs to receive the encoded transmissions and to transmit the assistance information. For example, the configuration information may include portion information for how long the encoded transmission is transmitted via the broadcast, via the unicast, when to transmit the assistance information, etc. In some cases, the configuration information may be based on UE metrics of the multiple UEs.

公开(公告)号：US20230040058A1

公开(公告)日：2023-02-09

申请号：US17759060

申请日：2020-01-20

Applicant: QUALCOMM INCORPORATED

Inventor： Min HUANG ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO ,  Liangming WU ,  Qiaoyu LI ,  Hao XU

IPC: H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described to support communication between a base station and a user equipment (UE) via multiple transmission reception points (TRPs). The base station may configure the UE to report a precoding matrix indicator (PMI) for various transmission modes, including one or more transmission modes for multiple TRPs. The UE may determine and report first PMI to the base station for each single TRP transmission mode, and the base station may use the first PMI to determine a precoding matrix for each TRP. The UE may determine and report partial PMI to the base station for the one or more multi-TRP transmission modes. The base station may use respective partial PMI to determine a precoding matrix for each multi-TRP transmission mode and may communicate with the UE using the determined precoding matrix or matrices.

公开(公告)号：US20220386338A1

公开(公告)日：2022-12-01

申请号：US17771694

申请日：2019-12-06

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Hao XU ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W72/12 ,  H04B7/0456

Abstract: Certain aspects of the present disclosure provide techniques for using subband precoding for uplink transmissions. In some cases, a UE may receive, from a network entity, at least one of a first downlink control information (DCI) or a second DCI, each DCI indicating at least one of one or more sets of one or more frequency domain (FD) bases and linear combination coefficients and transmit a PUSCH with subband precoding determined based on the first DCI, the second DCI, or a combination of the first and second DCI, depending on whether the first DCI is received, the second DCI is received, or both the first and second DCI are received.

公开(公告)号：US20220352949A1

公开(公告)日：2022-11-03

申请号：US17763241

申请日：2019-09-27

Applicant: Liangming WU ,  Chenxi HAO ,  Yu ZHANG ,  Qiaoyu LI ,  Wanshi CHEN ,  Hao XU ,  Qualcomm Incorporated

Inventor： Liangming WU ,  Chenxi HAO ,  Yu ZHANG ,  Qiaoyu LI ,  Wanshi CHEN ,  HAO XU

IPC: H04B7/06 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to use one or more channel state information (CSI) omission configurations for omitting portions of a CSI report. For example, a UE may receive a trigger to report CSI, and the UE may identify that a payload of the CSI report exceeds a capacity of resources for transmitting the report. As such, the UE may determine to use one or more CSI omission configurations, where each CSI omission configuration may correspond to dropping different portions of the CSI report. The selection of the CSI omission configuration to use may be based on a set of parameters associated with CSI reporting. In some cases, the UE selects the CSI omission configuration based on an explicit indication from the base station. Additionally or alternatively, the UE may implicitly determine the CSI omission configuration based on the parameters.

公开(公告)号：US20220329308A1

公开(公告)日：2022-10-13

申请号：US17620974

申请日：2020-06-10

Applicant: Qualcomm Incorporated

Inventor： Min HUANG ,  Qiaoyu LI ,  Liangming WU ,  Sony AKKARAKARAN

IPC: H04B7/06 ,  H04L5/14 ,  H04L5/00 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communications are described for a user equipment (UE) operating in a full-duplex mode to report of channel state information based on an estimate of self-interference associated with concurrent uplink and downlink transmissions using at least partially overlapping frequency resources. A base station may transmit downlink reference signals to the UE for measurement and generation of the channel state information, and the base station may use the channel state information reported by the UE to schedule the simultaneous transmission and reception such that the self-interference from full-duplex mode operations is mitigated.

公开(公告)号：US20220255604A1

公开(公告)日：2022-08-11

申请号：US17597617

申请日：2020-08-21

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Min HUANG ,  Yu ZHANG ,  Wanshi CHEN ,  Chao WEI

IPC: H04B7/06 ,  H04L5/00 ,  H04L1/16

Abstract: The frequency domain basis may be fed back in a CSI report from a user equipment (UE), with extra overhead and computation cost. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE configured to receive, from a base station, CSI reference signals (CSI-RS). The apparatus may be further configured to receive, from the base station, a configuration including a frequency domain basis restriction indicating a frequency domain basis subset, where the frequency domain basis subset is selected from a frequency domain basis set. The apparatus may be configured to prepare, upon receiving the frequency domain basis restriction, a CSI report based on the CSI-RS and the frequency domain basis subset. The apparatus may be further configured to transmit the CSI report to the base station.

公开(公告)号：US20220191800A1

公开(公告)日：2022-06-16

申请号：US17593112

申请日：2019-04-06

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Yuwei REN ,  Yu ZHANG ,  Qiaoyu LI ,  Chenxi HAO ,  Liangming WU ,  Hao XU

IPC: H04W52/14 ,  H04W52/10 ,  H04W52/08 ,  H04W52/24

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may receive an indication of a first transmit power configuration and a second transmit power configuration for a physical uplink shared channel (PUSCH) communication. The wireless communication device may transmit, using a first transmit power that is based at least in part on the first transmit power configuration, a first portion of the PUSCH communication in a full-duplex portion of a time-frequency resource. The wireless communication device may transmit, using a second transmit power that is based at least in part on the second transmit power configuration, a second portion of the PUSCH communication in a non-full-duplex portion of the time-frequency resource. Numerous other aspects are provided.

公开(公告)号：US20220140842A1

公开(公告)日：2022-05-05

申请号：US17512289

申请日：2021-10-27

Applicant: QUALCOMM Incorporated

Inventor： Kai CHEN ,  Liangming WU ,  Changlong XU ,  Jing JIANG ,  Hao XU

IPC: H03M13/09 ,  H03M13/15 ,  H03M13/00 ,  H04L1/00

Abstract: Certain aspects of the present disclosure generally relate to techniques for encoding and decoding bits of information using cyclic redundancy check (CRC) concatenated polar encoding and decoding. The CRC concatenated polar encoding techniques may avoid transmission of dummy bits. A method generally includes obtaining the bits of information to be transmitted. The method includes performing CRC outer encoding of the bits of information using an even-weighted generator polynomial to produce CRC encoded bits. The method includes performing polar inner encoding of the CRC encoded bits to generate a codeword. The method includes discarding a first code bit at a beginning of the codeword. The shortened codeword is transmitted over a wireless medium. In another method, bit-level scrambling is performed on the CRC encoded bits before the polar encoding to avoid generating a dummy bit. In another method, only odd-weighted generator polynomials are selected to avoid generating the dummy bit.