公开(公告)号：US20220077909A1

公开(公告)日：2022-03-10

申请号：US17310350

申请日：2020-02-11

Applicant: QUALCOMM Incorporated

Inventor： Ruifeng MA ,  Yuwei REN ,  Bo CHEN ,  Yu ZHANG ,  Liangming WU ,  Chenxi HAO ,  Renqiu WANG ,  Hao XU ,  Tingfang JI

IPC: H04B7/06 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine that a user equipment (UE) is to use a differential reporting mode based at least in part on a channel state information (CSI) report from the UE. The base station may transmit to the UE, signaling to cause the UE to use the differential reporting mode based at least in part on determining that the UE is to use the differential reporting mode. Numerous other aspects are provided.

公开(公告)号：US20220060919A1

公开(公告)日：2022-02-24

申请号：US17309757

申请日：2020-01-15

Applicant: QUALCOMM Incorporated

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

IPC: H04W24/10 ,  H04L5/00

Abstract: Aspects of the present disclosure relate to wireless communication. In some aspects, a user equipment may determine at least one of: a first number of coefficients to be included in a first set of coefficients in a transfer domain that characterize compressed channel state information (CSI) for a first layer, or a first quantization scheme to be used to interpret the first set of coefficients. The UE may determine at least one of: a second number of coefficients to be included in a second set of coefficients in the transfer domain that characterize the compressed CSI for a second layer, or a second quantization scheme to be used to interpret the second set of coefficients. The UE may transmit a report that identifies the first set of coefficients and the second set of coefficients based at least in part on the determination(s). Other aspects are provided.

公开(公告)号：US20210399861A1

公开(公告)日：2021-12-23

申请号：US17289531

申请日：2019-10-31

Applicant: QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Peter GAAL ,  Wanshi CHEN

IPC: H04L5/00 ,  H04W24/10

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for providing quasi-colocation (QCL) signaling for reference signals (RS) and channels across scenarios involving multiple cells, such as coordinated multipoint (CoMP) scenarios in which multiple transmit receive points (TRPs) or integrated access and backhaul (IAB) nodes each have their own cell ID.

公开(公告)号：US20210352695A1

公开(公告)日：2021-11-11

申请号：US17272024

申请日：2019-09-21

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Liangming WU ,  Hao XU ,  Wanshi CHEN

IPC: H04W72/12

Abstract: Certain aspects of the present disclosure provide techniques for indicating a preemption of resources impacting a joint transmission from multiple transmitting entities to a user equipment. The transmitting entities may be associated with a virtual cell ID or a demodulation reference signal (DMRS) port group ID.

公开(公告)号：US20210351827A1

公开(公告)日：2021-11-11

申请号：US17276765

申请日：2018-10-16

Applicant: Chenxi HAO ,  Yu ZHANG ,  Bo CHEN ,  Ruifeng MA ,  Pavan Kumar VITTHALADEVUNI ,  Wanshi CHEN ,  Qiaoyu LI ,  Liangming WU ,  QUALCOMM Incorporated

Inventor： Chenxi HAO ,  Yu ZHANG ,  Bo CHEN ,  Ruifeng MA ,  Pavan Kumar VITTHALADEVUNI ,  Wanshi CHEN ,  Qiaoyu LI ,  Liangming WU

IPC: H04B7/06 ,  H04B7/0456 ,  H04L25/02 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for uplink sounding reference signal (SRS) transmission with precoding. A method for wireless communication by a user equipment (UE) includes receiving a SRS configuration that configures one or more SRS resource sets, each resource set including one or more SRS resources, each SRS resource comprising one or more SRS ports. The UE receives a set of precoders via an indicator, the set of precoders including a precoder associated with each SRS resource and determines one or more precoders to apply for one or more SRS transmissions via one or more of the SRS resources.

公开(公告)号：US20210307025A1

公开(公告)日：2021-09-30

申请号：US17263109

申请日：2019-08-08

Applicant: Seyedkianoush HOSSEINI ,  Yi HUANG ,  Yu ZHANG ,  Wanshi CHEN ,  Qualcomm incorporated

Inventor： Seyedkianoush HOSSEINI ,  Yi HUANG ,  Yu ZHANG ,  Wanshi CHEN

IPC: H04W72/12 ,  H04W72/04 ,  H04W8/24 ,  H04W76/11

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a set of channel state processes scheduled to be performed. The UE may receive a channel state feedback request corresponding to another set of channel state processes. The combination of the set of channel state processes and the other set of channel state processes may be greater than an amount that the UE may process at a given time. The UE may determine a priority for the channel state processes either on an individual or group basis. The UE may determine channel state process (es) to drop based on the determined priorities, and may perform the remaining channel state processes. The UE may generate and transmit a channel state feedback report message based on the performed channel state processes.

公开(公告)号：US20210297119A1

公开(公告)日：2021-09-23

申请号：US17334305

申请日：2021-05-28

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Naga BHUSHAN ,  Haitong SUN ,  Tingfang JI ,  Yu ZHANG ,  Wanshi CHEN

IPC: H04B7/0417 ,  H04B7/06 ,  H04B7/0404 ,  H04B7/0452 ,  H04W72/14

Abstract: Aspects of the present disclosure provide methods and apparatus for selecting beamforming parameters for uplink transmissions based on an uplink reference signal. An example method generally includes identifying one or more parameters for beamformed transmission to a transmit receive point (TRP), transmitting a reference signal using beamforming in accordance with the identified parameters, and receiving, from the TRP in response to the reference signal, signaling for adjusting the one or more parameters for one or more subsequent beamformed transmissions.

公开(公告)号：US20210281448A1

公开(公告)日：2021-09-09

申请号：US17259207

申请日：2019-07-23

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

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

IPC: H04L25/02 ,  H04B7/0404 ,  H04B7/0456 ,  H04L5/00 ,  H04W8/24 ,  H04W72/04

Abstract: A base station may determine co-phase information and uplink precoding information (e.g., user equipment (UE) precoder information) based on one or more received sounding reference signals (SRSs) from a UE. The UE may adjust precoders or co-phase for different SRS transmissions over the one or more configured SRS resources. As such, the base station may indicate either co-phase information or uplink precoding information via an SRS resource indicator (SRI), and may transmit an explicit indication of the remaining co-phase information or uplink precoding information in addition to the SRI. In other examples (e.g., when only a single SRS resource is configured), the base station may transmit an index corresponding to uplink precoding information, as well as a separate indication of co-phase information. In some cases, a port selection pattern may be included with an explicit indication, indicating a selection of antenna port indices the precoder or co-phase index applies to.

公开(公告)号：US20210195597A1

公开(公告)日：2021-06-24

申请号：US16768677

申请日：2018-11-05

Applicant: Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Amir AMINZADEH GOHARI ,  QUALCOMM Incorporated

Inventor： Liangming WU ,  Yu ZHANG ,  Chao WEI ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Amir AMINZADEH GOHARI

IPC: H04W72/04 ,  H04L1/00 ,  H04B7/06 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to methods and apparatus relating to multiplexing UCI with data in a physical uplink shared channel (PUSCH) transmission.

公开(公告)号：US20210135823A1

公开(公告)日：2021-05-06

申请号：US16473917

申请日：2018-01-08

Applicant: QUALCOMM Incorporated

Inventor： Yu ZHANG ,  Chao WEI ,  Wanshi CHEN ,  Pavan Kumar VITTHALADEVUNI

IPC: H04L5/00 ,  H04B7/06

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for transmitting multiplexed sounding reference signal (SRS) ports in communications systems operating according to new radio (NR) technologies. An exemplary method includes obtaining an indication of a technique to use in transmitting sounding reference signals (SRS) via five or more antenna ports in one slot and transmitting the SRS via the five or more antenna ports according to the indicated technique.