公开(公告)号：US20220417999A1

公开(公告)日：2022-12-29

申请号：US17775481

申请日：2019-12-10

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Jing LEI ,  Wanshi CHEN ,  Hao XU ,  Yu ZHANG ,  Peter Pui Lok ANG ,  Krishna Kiran MUKKAVILLI

IPC: H04W74/08

Abstract: In an aspect, a UE and BS perform a RACH procedure whereby a preamble sequence group for a preamble is associated with a downlink receive capability of the UE. In another aspect, a UE and BS perform a RACH procedure whereby a preamble sequence group is associated with a group-specific RA-RNTI that is used to scramble an associated DCI communication. In another aspect, UEs performing a RACH procedure with a BS via different sets of ROs may monitor the same GC-DCI scrambled with a common RA-RNTI. In another aspect, a UE and BS perform a 2-Step RACH procedure whereby a Msg-A payload includes information indicative of a downlink receive capability level associated with the UE.

公开(公告)号：US20220400511A1

公开(公告)日：2022-12-15

申请号：US17776554

申请日：2019-11-28

Applicant: Qiaoyu LI ,  Jing LEI ,  Chao WEI ,  Wanshi CHEN ,  Umesh PHUYAL ,  Peter Pui Lok ANG ,  Krishna Kiran MUKKAVILLI ,  Hao XU ,  Qualcomm Incorporated

Inventor： Qiaoyu LI ,  Jing LEI ,  Chao WEI ,  Wanshi CHEN ,  Umesh PHUYAL ,  Peter Pui Lok ANG ,  Krishna KIRAN MUKKAVILLI ,  Hao XU

IPC: H04W74/00 ,  H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. A group of random access channel opportunities are identified over which to transmit a preamble associated with a random access channel procedure. A preamble sequence group associated with the identified group of random access channel opportunities is determined based on a repetition level associated with the preamble sequence group. At least one downlink message associated with the random access channel procedure is received based on the repetition level.

公开(公告)号：US20220330348A1

公开(公告)日：2022-10-13

申请号：US17634618

申请日：2020-08-11

Applicant: Qualcomm Incorporated

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

IPC: H04W74/08 ,  H04W72/04 ,  H04W72/12 ,  H04W56/00

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a user equipment (UE) receiving, from a base station, one or more random access channel (RACH) configurations. The RACH configurations may allocate resources for a contention-based RACH procedure for accessing a wireless network. Based on the RACH configurations, the UE may determine a set of random access occasions for an association period. From the set of random access occasions, the UE may map one or more indices of a plurality of synchronization signal blocks to one or more random access occasions. Using the one or more random access occasions, the UE may transmit a random access sequence, including one or more repetitions of the random access sequence to the base station to access the wireless network.

公开(公告)号：US20220256556A1

公开(公告)日：2022-08-11

申请号：US17597872

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Peter Pui Lok ANG

IPC: H04W72/12 ,  H04W72/04 ,  H04W24/08 ,  H04L1/00

Abstract: A configuration of providing uplink resources that supports low throughput traffic and high throughput traffic, while providing efficient utilization of downlink resources. The apparatus configures at least one UE with a set of group identifiers, the set of group identifiers including at least one group identifiers. The apparatus transmits a GC-DCI in a GC search space, the GC-DCI indicates to the at least one UE a change of uplink data resources, the GC-DCI may be encoded using a group identifier from the set of group identifiers.

公开(公告)号：US20220247467A1

公开(公告)日：2022-08-04

申请号：US17595106

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Min HUANG ,  Chao WEI ,  Yu ZHANG ,  Qiaoyu LI ,  Liangming WU

IPC: H04B7/06 ,  H04W24/02 ,  H04W72/04 ,  H04W24/10 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for a user equipment (UE) to determine channel state information (CSI) to feedback to a base station (BS) in a full-duplex wireless communications system while considering UE-to-UE interference and for the BS to configure the UE to provide the CSI to the BS. In an exemplary method, a UE receives, from a base station (BS) in a full-duplex communications system, a channel state information (CSI) report configuration including at least a first indicator of a first associated set of sounding reference signal (SRS) resources; and transmits to the BS a CSI report including CSI and zero or more second indicators of sets of measured SRS resources.

公开(公告)号：US20220039107A1

公开(公告)日：2022-02-03

申请号：US17309580

申请日：2020-01-09

Applicant: QUALCOMM Incorporated

Inventor： Chao WEI ,  Chenxi HAO ,  Liangming WU ,  Qiaoyu LI ,  Min HUANG

IPC: H04W72/12 ,  H04B7/0417 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may perform channel state information (CSI) measurements on one or more reference signal transmissions from a base station; determine, based at least in part on the CSI measurements, a set of non-zero linear combination complex coefficients for weighting and co-phasing for a linear combination of a plurality of frequency domain basis vectors and a plurality of spatial domain basis vectors; and transmit a CSI feedback, wherein a first part of the CSI feedback includes at least an indication of a number of the set of non-zero linear combination complex coefficients with regard to all layers of a communication link between the UE and the base station. Numerous other aspects are provided.

公开(公告)号：US20220029685A1

公开(公告)日：2022-01-27

申请号：US17311773

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Liangming WU ,  Chenxi HAO ,  Joseph Binamira SORIAGA ,  Hao XU

IPC: H04B7/06

Abstract: Configurations and feedback schemes for compressed channel state information (CSI) feedback are provided. A User Equipment (UE) determines a constraint on a total number of transfer domain coefficients to be reported for compressed Channel State Information (CSI) feedback by the UE for a plurality of beams identified for the feedback, wherein each transfer domain coefficient is associated with amplitude information and phase information. The UE selects from a transfer domain coefficient compression matrix, based on the constraint, a set of one or more transfer domain coefficients to report for each of the beams. The UE reports information indicating a number of selected transfer domain coefficients in the set of transfer domain coefficients for each beam and a location of each transfer domain coefficient within the transfer domain coefficient compression matrix and reports at least the amplitude and phase information for the selected coefficients.

公开(公告)号：US20210391910A1

公开(公告)日：2021-12-16

申请号：US17288496

申请日：2019-10-30

Applicant: Liangming WU ,  Chenxi HAO ,  Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Joseph Binamira SORIAGA ,  Yu ZHANG ,  QUALCOMM Incorporated

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

IPC: H04B7/06 ,  H04B7/0408

Abstract: Certain aspects of the present disclosure provide techniques for reporting channel state information (CSI) with spatial and time domain compression.

公开(公告)号：US20210328644A1

公开(公告)日：2021-10-21

申请号：US17274412

申请日：2018-09-21

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

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

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

Abstract: Certain aspects of the present disclosure provide techniques for a channel state information (CSI) report configuration for a multiple transmission reception point (TRP) transmission, such as a non-coherent joint transmission (NCJT). A method by a base station (BS) includes providing a user equipment (UE) with a CSI report configuration. The CSI report configuration is associated with one or more CSI reference signal (RS) resources. Each CSI-RS resource comprising a set of ports or port groups. The BS signals the UE to enable the UE to send a CSI report including CSI for more than one CSI-RS resource or for a CSI-RS resource comprising more than one port group and receives a CSI report from the UE.

公开(公告)号：US20210320704A1

公开(公告)日：2021-10-14

申请号：US17268379

申请日：2018-09-14

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

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

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

Abstract: Certain aspects of the present disclosure provide techniques for a channel state information (CSI) report configuration with a codebook list, for example, for non-coherent joint transmission (NCJT). A method for wireless communication that can be performed by a user equipment (UE) includes receiving a CSI report configuration. The CSI report configuration is associated with one or more CSI reference signal (RS) resources. Each CSI-RS resource includes a set of ports or port groups. The UE receives a list of codebooks associated with the configuration. The UE determines at least one codebook, from the list of codebooks, to apply for one or more triggered CSI-RS resources.