公开(公告)号：US20210194741A1

公开(公告)日：2021-06-24

申请号：US16756184

申请日：2017-11-10

Applicant: Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Wanshi CHEN ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Wanshi CHEN

IPC: H04L27/26 ,  H04L5/00 ,  H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for generating and using channel state information reference signals (CSI-RS). In some aspects, a method for generating a Channel State Information-Reference Signal may include: generating a pseudo-random base sequence based on at least a time parameter of the CSI-RS; modifying the pseudo-random base sequence based on at least a frequency parameter of the CSI-RS to form a modified pseudo-random sequence; generating the CSI-RS based on the modified pseudo-random sequence; and transmitting the CSI-RS to a user equipment.

公开(公告)号：US20210126739A1

公开(公告)日：2021-04-29

申请号：US17048837

申请日：2019-04-17

Applicant: QUALCOMM Incorporated

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

IPC: H04L1/00 ,  H04B7/0413

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive or determine information identifying a mapping of one or more codewords with regard to one or more layers, wherein the one or more layers include at least one of: a first set of layers, wherein a fraction of bits associated with each layer, of the first set of layers, is for data associated with the UE, or a second set of layers, wherein all bits associated with each layer, of the second set of layers, are for data associated with the UE; and perform rate matching or decoding based at least in part on the information identifying the mapping. Numerous other aspects are provided.

公开(公告)号：US20210099982A1

公开(公告)日：2021-04-01

申请号：US17044709

申请日：2019-04-02

Applicant: QUALCOMM Incorporated

Inventor： Changlong XU ,  Chao WEI ,  Liangming WU ,  Peng CHENG ,  Kai CHEN ,  Hao XU ,  Tingfang JI

IPC: H04W72/04 ,  H04L1/00

Abstract: Aspects of the disclosure relate to wireless communication. In some aspects, a user equipment (UE) may receive an indicator, in a physical downlink control channel (PDCCH) payload, that indicates whether the PDCCH payload includes data or downlink control information (DCI) for obtaining the data, wherein the indicator is an initial state of a cyclic redundancy check that includes a predefined sequence of bits; and obtain at least one of the data or the DCI based at least in part on the indicator. Numerous other aspects are provided.

公开(公告)号：US20210075488A1

公开(公告)日：2021-03-11

申请号：US17054234

申请日：2019-05-09

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04L5/00 ,  H04W24/10 ,  H04W24/08

Abstract: Certain aspects of the present disclosure provide techniques for aperiodic channel state information (A-CSI) feedback scheduling for cross-carriers. Certain aspects provide a method for wireless communication. The method generally includes receiving on a first component carrier (CC) signaling indicating an aperiodic channel state information (CSI) report request for a plurality of CCs; determining schedules for at least CSI reference signal (CSI-RS) transmissions on the CCs based on the received signaling; monitoring CSI-RS transmissions on the CCs according to the determined schedules; and reporting CSI feedback based on CSI-RS measurements of the CSI-RS transmissions.

公开(公告)号：US20210067995A1

公开(公告)日：2021-03-04

申请号：US16963644

申请日：2018-01-23

Applicant: Chenxi HAO ,  Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Qiaoyu LI ,  Wanshi CHEN ,  QUALCOMM INCORPORATED

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

IPC: H04W24/10 ,  H04L5/00

Abstract: Certain aspects of the present disclosure generally relate to methods and apparatus for generating and reporting CSI.

公开(公告)号：US20210051509A1

公开(公告)日：2021-02-18

申请号：US17044207

申请日：2019-04-02

Applicant: Liangming WU ,  Yu ZHANG ,  Yi HUANG ,  Chenxi HAO ,  Wanshi CHEN ,  QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Yi HUANG ,  Chenxi HAO ,  Wanshi CHEN

IPC: H04W24/10 ,  H04W72/12 ,  H04L1/18 ,  H04B7/06 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for collision handling for channel state information (CSI) reporting on a physical uplink shared channel (PUSCH). A method for wireless communications by a user equipment (UE) is provided. The method generally includes receiving scheduling for at least one CSI reporting transmission and at least one uplink transmission in a same slot. The UE determines to multiplex the at least one CSI and the at least one uplink transmission in the slot or to drop the at least one CSI or the at least one uplink transmission in the slot. The UE transmits in the slot at least one of: the at least one CSI transmission or the at least one uplink transmission based on the determination.

公开(公告)号：US20200351029A1

公开(公告)日：2020-11-05

申请号：US16758549

申请日：2018-10-02

Applicant: Jian LI ,  Changlong XU ,  Kai CHEN ,  Liangming WU ,  Jing JIANG ,  Hao XU ,  QUALCOMM Incorporated

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

IPC: H04L1/18 ,  H04L1/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may perform a first transmission of a communication that is encoded using a polar coding technique; and perform at least one retransmission of the communication, wherein more resources are allocated for the at least one retransmission than for the first transmission, and wherein the at least one retransmission includes an incremental redundancy version of the communication and a version of the communication for Chase combination. Numerous other aspects are provided.

公开(公告)号：US20200343909A1

公开(公告)日：2020-10-29

申请号：US16760758

申请日：2018-09-21

Applicant: QUALCOMM Incorporated

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

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

公开(公告)号：US20200274598A1

公开(公告)日：2020-08-27

申请号：US16649097

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Chao WEI ,  Liangming WU ,  Wanshi CHEN

IPC: H04B7/06 ,  H04B7/0456

Abstract: Certain aspects of the present disclosure provide techniques and apparatus for signaling precoder(s) for non-PMI based CSI feedback.

公开(公告)号：US20200059282A1

公开(公告)日：2020-02-20

申请号：US16608027

申请日：2018-05-04

Applicant: QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG

IPC: H04B7/06 ,  H04W72/04 ,  H04B7/0413 ,  H04L1/00

Abstract: Techniques and apparatus for configuring differential channel state information (CSI) reporting for high resolution CSI are provided. One technique includes determining a configuration for a user equipment (UE) to use for reporting differential CSI feedback. The configuration includes at least an indication of when the UE is to report differential CSI feedback, and is signaled to the UE. Once received, the UE reports differential CSI feedback according to the configuration.