公开(公告)号：US20230247558A1

公开(公告)日：2023-08-03

申请号：US18299315

申请日：2023-04-12

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI ,  Runxin WANG

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/044 ,  H04B7/0404 ,  H04W72/21 ,  H04W72/51

CPC classification number: H04W52/0274 ,  H04B7/0404 ,  H04L5/0051 ,  H04W72/21 ,  H04W72/044 ,  H04W72/51

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

公开(公告)号：US20230246693A1

公开(公告)日：2023-08-03

申请号：US18004611

申请日：2021-08-13

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar VITTHALADEVUNI ,  Hwan Joon KWON ,  Taesang YOO ,  Alexandros MANOLAKOS ,  Naga BHUSHAN ,  June NAMGOONG ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04B7/06 ,  H04L1/00

CPC classification number: H04B7/0641 ,  H04L1/0026 ,  H04B7/0626 ,  H04L1/0029

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first device may receive a channel state information (CSI) feedback configuration comprising an indication to save, for a specified time period, a channel state feedback (CSF) that corresponds to a first reference signal carried on a downlink channel. The first device may transmit a differential CSF based at least in part on the CSF and a second reference signal carried on the downlink channel. Numerous other aspects are provided.

公开(公告)号：US20230188302A1

公开(公告)日：2023-06-15

申请号：US18004286

申请日：2020-08-31

Applicant: QUALCOMM INCORPORATED

Inventor： Pavan Kumar VITTHALADEVUNI ,  Taesang YOO ,  Naga BHUSHAN ,  June NAMGOONG ,  Bo CHEN ,  Ruifeng MA ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04L5/00 ,  H04W72/231 ,  G06N3/08

CPC classification number: H04L5/0057 ,  H04L5/0048 ,  H04W72/231 ,  G06N3/08

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques at a user equipment (UE) provide for efficiently reporting channel state information (CSI) to a base station with an appropriate level of accuracy. In particular, the base station may indicate a level of accuracy to the UE for reporting CSI. The UE may encode the CSI using a first neural network, and the base station may decode the CSI using a second neural network. The first and second neural networks may form a neural network pair, and the UE may train the neural network pair based on the level of accuracy indicated by the base station. For example, the base station may indicate a loss function corresponding to a level of accuracy with which CSI is to be reported by the UE, and the UE may train the neural network pair using the loss function.

公开(公告)号：US20230179370A1

公开(公告)日：2023-06-08

申请号：US17999747

申请日：2020-07-18

Applicant: Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLLI ,  Hwan Joon KWON ,  QUALCOMM INCORPORATED

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0094

Abstract: Methods, systems, and devices for wireless communications are described for configuration and transmission of one or more uplink reference signals for tracking. A user equipment (UE) may transmit one or more uplink reference signals for tracking and a base station or transmission-reception point (TRP) may estimate one or more frequency or time shifts (e.g., a Doppler shift, time shift, or both) associated with communications with the UE. The estimated frequency shifts, time shifts, or combinations thereof, may be used to provide compensated communications (e.g., Doppler compensated communications) with the UE. The uplink reference signal for tracking may be a sounding reference signal that is configured as a tracking reference signal.

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：US20230113127A1

公开(公告)日：2023-04-13

申请号：US17904182

申请日：2020-02-14

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush HOSSEINI ,  Yi HUANG ,  Wei YANG ,  Wanshi CHEN ,  Krishna Kiran MUKKAVILLI ,  Yu ZHANG

IPC: H04W72/11 ,  H04W72/23 ,  H04W24/10 ,  H04L1/00 ,  H04B7/06

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine a channel state reporting configuration for one or more semi-persistent scheduling (SPS) configurations for communications with a base station. For example, different channel state report configurations may be configured for the UE within the SPS configuration. Additionally, a downlink control information (DCI) associated with the SPS configuration may be used to activate the channel state report configuration. In some cases, different channel state report configurations may be configured for an SPS configuration, and the DCI may include a bit field to indicate which configured channel state report configuration is activated for the SPS configuration. Additionally, if the DCI indicates a release for an SPS configuration, the UE may refrain from transmitting channel state reports with an acknowledgment feedback acknowledging the release.

公开(公告)号：US20230101379A1

公开(公告)日：2023-03-30

申请号：US17800889

申请日：2020-12-17

Applicant: QUALCOMM INCORPORATED

Inventor： Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: G01S5/00 ,  H04W24/08 ,  H04W64/00 ,  H04W72/566 ,  H04W72/21

Abstract: A user equipment (UE) generates a positioning state information (PSI) report to be transmitted in a lower layer channel, e.g., in the Physical or Medium Access Control channel, to a network entity to reduce latency. The PSI reports may be generated based on information from uplink (UL), downlink (DL) or UL and DL positioning measurements performed by the UE. When multiple PSI reports collide, e.g., to be transmitted simultaneously, or when a PSI report and a Channel State Information (CSI) report collide, prioritization of the reports is performed using priority rules based at least in part on positioning related content of the PSI reports. The PSI report or CSI report with the highest priority is transmitted to the network entity on the lower layer channel, and lower priority reports may be omitted. A network entity may receive and process the PSI report based on the priority based rules.

公开(公告)号：US20230070974A1

公开(公告)日：2023-03-09

申请号：US17760288

申请日：2020-03-30

Applicant: QUALCOMM Incorporated

Inventor： Yi Huang ,  Peter GAAL ,  Wanshi CHEN ,  Hwan Joon KWON ,  Krishna Kiran MUKKAVILLI ,  Seyedkianoush HOSSEINI ,  Fang YUAN

IPC: H04L1/16

Abstract: Methods, systems, and devices for wireless communications are described. Feedback information associated with decoding downlink information may be reported in a first stage and a second stage. A size of the second stage may be restricted by an upper limit associated with an available set of uplink resources for transmitting the feedback information. Limiting the size of the second stage may include reducing a size of second information generated for the second stage, yielding third information for the second stage. The third information may be transmitted with first information generated for the first stage. Limiting the size of the second stage may also include generating second information having a reduced size based on determining that the upper limit may be exceeded. The reduced-size second information may be transmitted with the first information.

公开(公告)号：US20230064591A1

公开(公告)日：2023-03-02

申请号：US17446808

申请日：2021-09-02

Applicant: QUALCOMM Incorporated

Inventor： Abdelrahman Mohamed Ahmed Mohamed IBRAHIM ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Ahmed Attia ABOTABL ,  Wanshi CHEN ,  Huilin XU ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/14 ,  H04W72/04 ,  H04B7/06 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration including a plurality of codebook subset restrictions. The UE may identify a codebook subset restriction, of the plurality of codebook subset restrictions, to be applied to precoding matrix indicator (PMI) selection associated with a slot. The UE may transmit a channel state information (CSI) report including an indication of a PMI selected based at least in part on the identified codebook subset restriction. Numerous other aspects are described.

公开(公告)号：US20230006790A1

公开(公告)日：2023-01-05

申请号：US17782202

申请日：2020-12-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04W64/00

Abstract: A method of selectively transmitting a positioning signal from a TRP includes: transmitting, unmuted, a first intra-slot positioning signal resource segment in a first slot of a transmission schedule in accordance with a muting configuration, the transmission schedule indicating which one or more resource elements to sound for transmitting at least a portion of the positioning signal, the muting configuration indicating whether to mute intra-slot positioning signal resource segments; and muting transmission by the TRP of a second intra-slot positioning signal resource segment in the first slot of the transmission schedule in accordance with the muting configuration.