公开(公告)号：US20230224134A1

公开(公告)日：2023-07-13

申请号：US17802409

申请日：2020-04-29

Applicant: QUALCOMM INCORPORATED

Inventor： Qiaoyu Li ,  Chao WEI ,  Jing LEI ,  Hao XU ,  Chenxi HAO ,  Jing DAI ,  Peter Pui Lok ANG ,  Hwan Joon KWON ,  Wanshi CHEN

IPC: H04L5/00

CPC classification number: H04L5/0057 ,  H04L5/0048

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) and a base station may perform one or more operations for receive antenna switching. For example, a UE may receive a set of reference signals from a base station using one or more ports of the UE. Based on receiving the set of reference signals, the UE may generate channel state information (CSI) associated with a set of antenna ports. In some cases, the UE may generate CSI based on receiving a configuration indicating the set of antenna ports. The UE may transmit, to the base station, a CSI report including the CSI information associated with the set of antenna ports and an indication of the associated antenna ports. The base station may receive the CSI report and may communicate with the UE using a set of precoders associated with the set of indicated antennas ports.

公开(公告)号：US20230198731A1

公开(公告)日：2023-06-22

申请号：US17924240

申请日：2020-06-26

Applicant: QUALCOMM Incorporated

Inventor： Yiqing CAO ,  Jing LEI ,  Peter GAAL ,  Wanshi CHEN

IPC: H04L5/16 ,  H04W72/232 ,  H04W72/0453

CPC classification number: H04L5/16 ,  H04W72/232 ,  H04W72/0453

Abstract: Aspects of the present disclosure provide techniques configuring half-duplex UEs (HD-UEs) to implement supplementary uplink (SUL) in band combination that may be in same or different frequency range designations (e.g., FR1 or FR2) in both FDD and TDD without the benefit of a duplexer.

公开(公告)号：US20230179369A1

公开(公告)日：2023-06-08

申请号：US17925790

申请日：2020-07-21

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Jing LEI ,  Yuchul KIM ,  Chao WEI ,  Hung Dinh LY ,  Gokul SRIDHARAN

IPC: H04L5/00

CPC classification number: H04L5/0051

Abstract: A configuration that enables a UE to process a PDSCH DMRS bundle having a higher density of DMRS symbols at a beginning of the PDSCH DMRS bundle. The apparatus receives a PDSCH and DMRS in each slot of a plurality of slots, the DMRS being bundled across the plurality of slots, a first subset of slots of the plurality of slots each having a higher DMRS symbol density of DMRS than a second subset of slots of the plurality of slots, the second subset of slots being subsequent to the first subset of slots. The apparatus decodes each received PDSCH based on at least a subset of the received DMRS.

公开(公告)号：US20230144865A1

公开(公告)日：2023-05-11

申请号：US17794587

申请日：2020-01-23

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Yu ZHANG ,  Peter Pui Lok ANG ,  Jing LEI

IPC: H04W72/0457 ,  H04W72/54 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/0457 ,  H04W72/54 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/23

Abstract: A user equipment for wireless communication is provided. The UE operates within an active bandwidth part (BWP) of a component carrier, wherein the active BWP is a portion of a total bandwidth of the component carrier, determines a configuration for a dynamic channel state information (CSI) measurement gap, the dynamic CSI measurement gap including channel state information (CSI) measurement resources having a frequency domain occupation within the total bandwidth of the component carrier and outside of the active BWP, measures the CSI measurement resources included in the dynamic CSI measurement gap, and transmits a CSI report based on the measured CSI measurement resources.

公开(公告)号：US20230144688A1

公开(公告)日：2023-05-11

申请号：US17524687

申请日：2021-11-11

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Huilin XU ,  Jing LEI

IPC: H04L5/00 ,  H04W68/02 ,  H04W52/02

CPC classification number: H04L5/005 ,  H04W68/02 ,  H04W52/0229 ,  H04L5/0032

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a New Radio (NR) user equipment (UE) may receive a configuration that configures the NR UE with a capability to use a Long Term Evolution (LTE) cell-specific reference signal (CRS) for updating a tracking loop. The NR UE may receive an LTE CRS. The NR UE may update the tracking loop based at least in part on the LTE CRS. Numerous other aspects are described.

公开(公告)号：US20230022523A1

公开(公告)日：2023-01-26

申请号：US17683225

申请日：2022-02-28

Applicant: QUALCOMM Incorporated

Inventor： Linhai HE ,  Ruiming ZHENG ,  Jing LEI

IPC: H04L5/00 ,  H04B17/318

Abstract: A UE and a base station are disclosed. The UE may receive, from a base station, an indication of a configuration of an SS and a set of candidate DL-RSs associated with a plurality of CG-SDT resources. The base station may monitor for the UL data transmission from the UE corresponding to a CG-SDT occasion of the CG-SDT resources. The UE may measure a RSRP of each of the set of candidate DL-RSs associated with the CG-SDT resources. The UE may select an UL beam based on the measured RSRP of each of the set of candidate DL-RSs associated with the CG-SDT resources. The UE may transmit, to the base station via the selected UL beam, the UL data transmission over a CG-SDT occasion of the plurality of CG-SDT resources. The UE may monitor the SS for a response to the UL data transmission from the base station.

公开(公告)号：US20230015843A1

公开(公告)日：2023-01-19

申请号：US17780858

申请日：2020-12-21

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Jing LEI

IPC: H04W74/08

Abstract: Methods, systems, and devices are described for transmitting multiple repetitions of a random access shared channel message in multiple slots using beamformed wireless communications. A UE may determine transmission slots for one or more of the multiple repetitions of a random access shared channel message based on slots associated with random access occasions (ROs) that are mapped to an identified synchronization signal block (SSB), such as a SSB associated with a beam that is selected for communications by the UE. In cases where slots with ROs mapped to the identified SSB are not consecutively located, one or more slot offsets may be provided for transmitting the multiple repetitions of the random access shared channel message. Slot offsets may be explicitly indicated by a base station in a random access response message, or may be determined by the UE based on a mapping of SSBs to ROs.

公开(公告)号：US20230007683A1

公开(公告)日：2023-01-05

申请号：US17756006

申请日：2019-11-14

Applicant: QUALCOMM Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Wanshi CHEN ,  Huilin XU ,  Jing LEI ,  Peter Pui Lok ANG ,  Min HUANG ,  Yu ZHANG ,  Chenxi HAO ,  Hao XU

IPC: H04W74/00 ,  H04W74/08 ,  H04W76/14 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a primary user equipment (UE) may transmit, on a sidelink, information indicating a set of sidelink random access configurations corresponding to a set of uplink random access configurations; receive, on the sidelink and from a secondary UE, a random access signal based at least in part on a selected sidelink random access configuration of the set of sidelink random access configurations, wherein the selected sidelink random access configuration corresponds to a selected uplink random access configuration of the set of uplink random access configurations; and selectively performing a random access procedure in accordance with the selected uplink random access configuration. Numerous other aspects are provided.

公开(公告)号：US20220400513A1

公开(公告)日：2022-12-15

申请号：US17776640

申请日：2019-11-14

Applicant: Qualcomm Incorporated

Inventor： Qiaoyu LI ,  Chao WEI ,  Hao XU ,  Huilin XU ,  Jing LEI ,  Peter Pui Lok ANG ,  Wanshi CHEN ,  Le LIU ,  Yiqing CAO ,  Peter GAAL

IPC: H04W74/04 ,  H04W74/00 ,  H04W74/08

Abstract: A low complexity user equipment (UE) may be in communication with another UE (e.g., with a premium UE or more capable UE) via a device-to-device communication link (e.g., via sidelink), and the low complexity UE may leverage the device-to-device link to improve (e.g., simplify, expedite, etc.) random access procedures performed by the low complexity UE. For example, a low complexity UE may request contention free random access (CFRA) resources via the device-to-device link with another UE. Another device (e.g., another UE in device-to-device communication with the low complexity UE) may receive the request from the low complexity UE and forward the request to the network (e.g., to a base station). The network may then configure CFRA resources for the low complexity UE. Upon receiving the CFRA configuration, the low complexity UE may perform a random access procedure (e.g., a CFRA procedure) with the network (e.g., with the base station) accordingly.

公开(公告)号：US20220386376A1

公开(公告)日：2022-12-01

申请号：US17773921

申请日：2019-11-15

Applicant: Qualcomm Incorporated

Inventor： Chao WEI ,  Jing LEI ,  Chenxi HAO ,  Peter Pui Lok ANG ,  Huilin XU ,  Wanshi CHEN ,  Krishna Kiran MUKKAVILLI ,  Le LIU ,  Hung Dinh LY

IPC: H04W74/08 ,  H04W72/14 ,  H04W72/12

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for efficiently reporting channel state information (CSI) with limited overhead. In one aspect, if a user equipment (UE) is configured to transmit data and CSI to a base station periodically, the UE may transmit the CSI when the UE has data to transmit to the base station. In particular, the UE may transmit data and a CSI report during a transmission opportunity if the UE has data to transmit in the transmission opportunity. Otherwise, the UE may suppress transmission of the CSI report. In another aspect, a UE may be configured to transmit CSI to abase station when downlink channel conditions change. In particular, the UE may request to report CSI to the base station when channel conditions change, and the base station may trigger the UE to report the CSI after receiving the request.