公开(公告)号：US20210385048A1

公开(公告)日：2021-12-09

申请号：US17284315

申请日：2018-10-12

Applicant: QUALCOMM Incorporated

Inventor： Yuwei REN ,  Chao WEI ,  Yiqing CAO ,  Huilin XU ,  Yu ZHANG ,  Hao XU ,  Tingfang JI

IPC: H04L5/00 ,  H04B17/345 ,  H04B17/382

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may detect interference, in a remote interference management (RIM) scenario, in a set of sub-bands of a plurality of sub-bands of a bandwidth portion. The base station may transmit, to identify the set of sub-bands in which interference is detected, a set of reference signals configured to indicate the set of sub-bands in which the interference is detected. Numerous other aspects are provided.

公开(公告)号：US20210351826A1

公开(公告)日：2021-11-11

申请号：US17384044

申请日：2021-07-23

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI

IPC: H04B7/06 ,  H04L1/00 ,  H04L5/00 ,  H04L1/20 ,  H04B7/04 ,  H04B7/0456 ,  H04B7/0452

Abstract: Dynamic reconfiguration of CSI-RS resources for CSI reporting is described for full dimension multiple input, multiple output (FD-MIMO) systems. While a larger number of channel state information (CSI) reference signal (CSI-RS) resources with independent resource configuration are configured and associated with a CSI process, only a subset of resources that are activated by additional signaling are used for CSI measurement and reporting. The set of activated CSI-RS resources may include only a single CSI-RS resource. Both periodic and aperiodic CSI reporting may then be based on the same set of the activated CSI-RS resources. Medium access control (MAC) control elements may be used to provide activation/deactivation of the CSI-RS resources. Additionally, CSI reporting may be based on both the activated CSI-RS resources and the associated number of antenna ports.

公开(公告)号：US20210306102A1

公开(公告)日：2021-09-30

申请号：US17268867

申请日：2019-08-05

Applicant: Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Chenxi HAO ,  Liangming WU ,  Hao XU ,  QUALCOMM Incorporated

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

IPC: H04L1/16 ,  H04L1/18 ,  H04L1/06

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a first decoding result for a plurality of downlink control channels of a diversity enhancement based non-coherent joint transmission communication and a second decoding result for a plurality of data channels corresponding to the plurality of downlink control channels; and selectively provide feedback regarding the first decoding result and feedback regarding the second decoding result, the feedback regarding the first decoding result indicating whether reception of one or more downlink control channels, of the plurality of downlink control channels, is successful, and the feedback regarding the second decoding result indicating whether decoding of a codeword of the plurality of data channels is successful. Numerous other aspects are provided.

公开(公告)号：US20210297214A1

公开(公告)日：2021-09-23

申请号：US17260183

申请日：2019-08-02

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

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

IPC: H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for signaling quasi-coloration (QCL) information for demodulation reference signals (DM-RS) associated with multiple transmission-reception points (multi-TRP). An example method generally includes generating quasi-colocation (QCL) information indicating a first QCL assumption for a first group of demodulation reference signal (DM-RS) ports and a second QCL assumption for a second group of DM-RS ports; and transmitting the QCL information to at least one user equipment (UE) for use in processing one or more transmission associated with at least one of the first group of DM-RS ports and the second group of DM-RS ports.

公开(公告)号：US20210274479A1

公开(公告)日：2021-09-02

申请号：US17259145

申请日：2019-08-06

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Le LIU ,  Alberto RICO ALVARINO

IPC: H04W72/04

Abstract: The present disclosure relates to methods and devices for flexible resource allocation. In one aspect, a base station can generate a narrowband data channel including a plurality of resource blocks (RBs). The base station may shift a position of the RBs of the narrowband data channel to align with a wideband resource block group (RBG) boundary. The base station can also adjust a precoding resource block group (PRG) for the narrowband data channel. Also, the base station can transmit the narrowband data channel to a User Equipment (UE) based on adjusting the PRG. In another aspect, the base station may align a beginning or last RB of the plurality of RBs with the wideband RBG boundary and/or align a beginning or last RB of the PRG with the wideband RBG boundary. In another aspect, the base station may transmit an indication to the UE indicating a flexible resource allocation.

公开(公告)号：US20210250993A1

公开(公告)日：2021-08-12

申请号：US16972674

申请日：2019-06-12

Applicant: Qiaoyu LI ,  Chao WEI ,  Kai CHEN ,  Hao XU ,  Qualcomm Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Kai CHEN ,  Hao XU

IPC: H04W74/08 ,  H04B1/69 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described in which sequence groups, and sequence hopping patterns may be used to distinguish concurrent non-orthogonal multiple access (NOMA) transmissions. A wireless device, such as a user equipment (UE), may identify, for a message, a first transmission opportunity from a plurality of transmission opportunities associated with grant-free uplink contention-based transmissions (e.g., NOMA transmissions); select a multiple access (MA) signature sequence from a group of MA signature sequences associated with the first transmission opportunity; identify a hopping pattern associated with the MA signature sequence; and transmit one or more redundancy versions of the message in one or more of the plurality of transmission opportunities comprising the first transmission opportunity according to the MA signature sequence and the hopping pattern.

公开(公告)号：US20210211249A1

公开(公告)日：2021-07-08

申请号：US15733764

申请日：2019-04-17

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter device may allocate data associated with a user equipment (UE), of two or more UEs, into at least one of a first part, a second part, or a combination thereof; multiplex the first part of the data associated with the UE with a first part of data associated with one or more other UEs, of the two or more UEs, to form multiplexed data; map the multiplexed data to a first set of layers; and map the second part of the data associated with the UE and a second part of the data associated with the one or more other UEs to a second set of layers. Numerous other aspects are provided.

公开(公告)号：US20210028916A1

公开(公告)日：2021-01-28

申请号：US16926193

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Hao XU

IPC: H04L5/14 ,  H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for full-duplex slot configuration. A method that may be performed by a wireless node includes determining one or more traffic parameters associated with data configured for communication via wireless links including at least one reception link and at least one transmission link, selecting a full-duplex (FD) slot type for communication of the data via the wireless links, wherein the FD slot type is based on the one or more traffic parameters, and communicating the data with one or more wireless nodes via the wireless links in accordance with the selected FD slot type.

公开(公告)号：US20200083987A1

公开(公告)日：2020-03-12

申请号：US16468622

申请日：2018-01-08

Applicant: Changlong XU ,  Chao WEI ,  Jing JIANG ,  Gaojin WU ,  Hari SANKAR ,  Jilei HOU ,  QUALCOMM Incorporated

Inventor： Changlong XU ,  Chao WEI ,  Jing JIANG ,  Gaojin WU ,  Hari SANKAR ,  Jilei HOU

IPC: H04L1/00 ,  H03M13/13 ,  H03M13/00

Abstract: Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for rate-matching control channels using polar codes. An exemplary method generally includes encoding a stream of bits using a polar code, determining a size of a circular buffer for storing the encoded stream of bits based, at least in part, on a minimum supported code rate and a control information size, and performing rate-matching on stored encoded stream of bits based, at least in part, on a mother code size, N, and a number of coded bits for transmission, E.

公开(公告)号：US20200052866A1

公开(公告)日：2020-02-13

申请号：US16343538

申请日：2017-11-03

Applicant: Alexandros Manokakos ,  Chao Wei ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Hao Xu ,  Wanshi Chen ,  QUALCOMM INCORPORATED

Inventor： Alexandros MANOLAKOS ,  Chao WEI ,  Pavan Kumar VITTHALADEVUNI ,  Yu ZHANG ,  Hao XU ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04W72/12

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for a UE to flexibly indicate a preferred precoding resource block group (PRG) size to a base station (e.g., an eNB).