公开(公告)号：US20240380450A1

公开(公告)日：2024-11-14

申请号：US18689322

申请日：2021-11-18

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Juergen CEZANNE ,  Renqiu WANG ,  Danlu ZHANG ,  Naga BHUSHAN ,  Pinar SEN ,  Seyong PARK ,  Yu ZHANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Tingfang JI

IPC: H04B7/0456

Abstract: Methods, systems, and devices for wireless communications are described. A transmitted may use a closed loop precoder for line-of-sight (LOS) multiple-input multiple-output (MIMO) communications that uses information such as distance feedback or LOS MIMO channel state feedback. A closed loop precoder may be associated with less overhead than a precoder based on full channel knowledge, such as an SVD precoder. A receiver may estimate a channel based on channel state information reference signals transmitted by the transmitter and calculate a spectral efficiency for one or more precoders of a set of precoders associated with the channel for a LOS MIMO mode. The receiver may send feedback to the transmitter that indicates a selected precoder of the set of LOS MIMO precoders based on the calculated spectral efficiencies. The transmitter may precode messages using the reported closed loop precoder.

公开(公告)号：US20240372676A1

公开(公告)日：2024-11-07

申请号：US18773497

申请日：2024-07-15

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Jing JIANG ,  Hao XU ,  Chong LI

IPC: H04L5/00 ,  H04W72/0446 ,  H04W72/23 ,  H04W72/543 ,  H04W72/566

Abstract: In certain scenarios, resource preemption may occur. A user equipment (UE) is configured to monitor for a preemption indication based on a specific downlink configuration. This configuration provides information about whether preemption is identified within a data space in terms of resource blocks. The UE receives data transmissions from a base station at different times and a preemption indication in a group common physical downlink control channel. Based on this preemption indication and the downlink configuration, the UE determines if a portion of the shared downlink resources occupied by the initial data is preempted from use. If the resources are not preempted, the UE proceeds to decode the initial data.

公开(公告)号：US20230370860A1

公开(公告)日：2023-11-16

申请号：US17663656

申请日：2022-05-16

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Seyong PARK ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Renqiu WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI ,  Danlu ZHANG

IPC: H04W16/28 ,  H04B7/06

CPC classification number: H04W16/28 ,  H04B7/0617 ,  H04B7/0695

Abstract: Certain aspects relate to techniques for estimating and compensating for antenna array rotation of a wireless node. For example, the antenna array of the wireless node may rotate about one or more of an x-axis, a y-axis, and a z-axis, which may misalign the antenna array relative to another antenna array of another wireless node, causing degradation of communications between the two nodes. In some examples, the wireless node may obtain, from a first antenna array of the other wireless node via a second antenna array of the first wireless node, a first pilot signal and a second pilot signal via a first beam. In some examples, the first wireless node may perform a first alignment compensation based on a phase difference between the first pilot signal and the second pilot signal.

公开(公告)号：US20230344122A1

公开(公告)日：2023-10-26

申请号：US17660611

申请日：2022-04-25

Applicant: QUALCOMM Incorporated

Inventor： Pinar SEN ,  Seyong PARK ,  Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Renqiu WANG ,  Naga BHUSHAN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H01Q3/36 ,  H01Q3/02 ,  H04B17/12 ,  H04B17/17 ,  H04B7/0417

CPC classification number: H01Q3/36 ,  H01Q3/02 ,  H04B17/12 ,  H04B17/17 ,  H04B7/0417

Abstract: Certain aspects relate to techniques for z-axis rotation estimation for compensating signaling transmitted between two or more nodes over a wireless channel where an antenna array of at least one of the nodes is misaligned about the z-axis relative to another node. For example, a transmitting node may transmit pilot signals defined by phase shifts to provide a receiving node with a basis for estimating the angle of rotation by which the antenna arrays are misaligned. The transmitting node may then take remedial action to address the misalignment based on the estimation.

公开(公告)号：US20230327799A1

公开(公告)日：2023-10-12

申请号：US18209262

申请日：2023-06-13

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Yi Huang

IPC: H04L1/00 ,  H04L1/1829 ,  H04W72/0453 ,  H04L5/00 ,  H04B7/06 ,  H04L1/1607 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04L1/001 ,  H04L1/1861 ,  H04W72/0453 ,  H04L5/0055 ,  H04B7/0617 ,  H04L1/1607 ,  H04W72/21 ,  H04W72/23 ,  H04B7/0413

Abstract: Methods, systems, and devices for wireless communications are described. In some cases, randomized shifts of a base sequence may be used for transmitting uplink control information. For example, a user equipment (UE) may identify a base sequence of an uplink control message. The UE may also receive signaling that indicates a UE-specific initial shift that may be applied to the base sequence. In some examples, the signaling that indicates the randomized shift may be explicit, implicit, or a combination thereof. After determining one or more shifted sequences based on the UE-specific initial shift, a payload of the uplink control message, and the base sequence, the UE may select a shifted sequence to be transmitted, where the selection is based on a payload of the uplink control message. For example, different shifted sequences may be selected for respective transmissions of scheduling requests, 1-bit acknowledgments (ACKs), 2-bit ACKs, and the like.

公开(公告)号：US20220346121A1

公开(公告)日：2022-10-27

申请号：US17810961

申请日：2022-07-06

Applicant: QUALCOMM Incorporated

Inventor： Renqiu WANG ,  Hao XU ,  Wei ZENG ,  Seyong PARK ,  Wanshi CHEN ,  Peter GAAL ,  Tingfang JI

IPC: H04W72/12 ,  H04L1/18 ,  H04L5/00 ,  H04W52/36 ,  H04B7/06 ,  H04W72/04

Abstract: A user equipment (UE) may map a demodulation reference signal (DMRS) sequence to a first symbol in a set of resource blocks (RBs) of an uplink long burst, and the first symbol may occur at the beginning of the uplink long burst. The DMRS sequence may be “front-loaded” in the uplink long burst. The DMRS sequence may be dependent upon RB locations. When the DMRS sequence is mapped to the beginning of an uplink long burst, uplink control information (UCI) may be mapped in a physical uplink shared channel (PUSCH). A UE may map UCI in a PUSCH after the DMRS sequence is mapped to the beginning of the uplink long burst. When the base station receives an uplink long burst including the front-loaded DMRS and the UCI mapped in the PUSCH, the base station may identify the DMRS for channel estimation/interference cancelation of the UCI carried on the PUSCH.

公开(公告)号：US20220330253A1

公开(公告)日：2022-10-13

申请号：US17661704

申请日：2022-05-02

Applicant: QUALCOMM Incorporated

Inventor： Wei YANG ,  Jing JIANG ,  Yi HUANG ,  Renqiu WANG ,  Wanshi CHEN ,  Peter GAAL ,  Chih-Ping LI ,  Tingfang JI ,  Seyedkianoush HOSSEINI

IPC: H04W72/04 ,  H04W72/14 ,  H04L5/00 ,  H04W76/27 ,  H04W72/12 ,  H04L1/18 ,  H04W24/08

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that signaling associated with a resource allocation is associated with a service type. The UE may identify a time-domain resource, for a transmission associated with the service type, in connection with determining that the signaling associated with the allocation is associated with the service type. Numerous other aspects are provided.

公开(公告)号：US20220171016A1

公开(公告)日：2022-06-02

申请号：US17105814

申请日：2020-11-27

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Seyong PARK ,  Renqiu WANG

IPC: G01S7/00 ,  H04W88/02 ,  H04L12/24 ,  G01S13/87

Abstract: In an aspect, a radar controller determines transmission configuration(s) for target radar signals from a first wireless communications device to a second wireless communications device, the target radar signals for sensing of at least one target, the at least one transmission configuration configuring a first time-domain section associated with a first time-domain target radar signal density, and a second time-domain section associated with a second time-domain target radar signal density that is different than the first time-domain target radar signal density. The radar controller transmits the transmission configuration(s) to the first and second wireless communications devices. The first wireless communications device transmits the target radar signals to the second wireless communications device in accordance with the transmission configuration(s).

公开(公告)号：US20220113400A1

公开(公告)日：2022-04-14

申请号：US17450103

申请日：2021-10-06

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Seyong PARK ,  Renqiu WANG ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI

IPC: G01S13/87 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26 ,  H04W56/00

Abstract: In an aspect, a radar controller determines a first transmission configuration for a reference radar signal on a first link from a first base station to a second base station, and a second transmission configuration for at least one target radar signal on at least one second link from the first base station to the second base station, the at least one target radar signal for sensing of at least one target, the first transmission configuration being different than the second transmission configuration. The radar controller transmits the first and second transmission configurations to the first and second base stations. The first base station transmits the reference radar signal and the at least one target radar signal in accordance with the respective transmission configurations.

公开(公告)号：US20220107384A1

公开(公告)日：2022-04-07

申请号：US17461397

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK ,  Renqiu WANG ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Taesang YOO

IPC: G01S7/00 ,  G01S13/00

Abstract: In an aspect, a radar controller determines a radar slot format that configures transmission of a reference radar signal on a first symbol over a first link from a first base station to a second base station followed by at least one target radar signal on at least one second symbol over at least one second link from the first base station to the second base station, and transmits an indication of the radar slot format to the first base station and the second base station. The first base station transmits, and the second base station receives, the reference radar signal and the at least one target radar signal in accordance with the radar slot format.