公开(公告)号：US20240205927A1

公开(公告)日：2024-06-20

申请号：US18538829

申请日：2023-12-13

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Arumugam Chendamarai Kannan ,  Vinay Chande ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W72/23 ,  H04L5/00 ,  H04W72/044 ,  H04W72/542

CPC classification number: H04W72/23 ,  H04L5/0048 ,  H04W72/046 ,  H04W72/542 ,  H04W72/044

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for frame based operation and medium contention procedures in wireless networks. In some aspects, devices of a wireless network may perform receiver side contention operations. To illustrate, reference signals from a receiving device may be transmitted to a transmitting device and used by the transmitting device to estimate interference for transmitter side transmissions. Such receiver side reference signals may more accurately reflect the interference profile that transmissions sent by the transmitting device will face, such as when operating in a spectrum shared with many devices. The transmitting device may utilize the beam(s) that satisfy interference criteria when receiving the reference signals to transmit data. Receiver side frame based operation may provide a more stable interference profile which enables better rate prediction, and the better rate prediction may increase reliability and overall network and medium throughput.

公开(公告)号：US20240172166A1

公开(公告)日：2024-05-23

申请号：US18058148

申请日：2022-11-22

Applicant: QUALCOMM Incorporated

Inventor： Mohammad Tarek Fahim ,  Srinivas Yerramalli ,  Piyush Gupta ,  Xiaojie Wang ,  Xiaoxia Zhang ,  Rajat Prakash

IPC: H04W64/00 ,  G01N23/203 ,  G06K19/077

CPC classification number: H04W64/00 ,  G01N23/203 ,  G06K19/07758

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving a tag device indicator that indicates a tag capability of a tag device. The method also includes transmitting, to a first transmission/reception point (TRP) of a plurality of TRPs, a positioning reference signal (PRS) configuration associated with a PRS, the PRS configuration based on the tag capability, the plurality of TRPs including the first TRP designated as a transmit (Tx) TRP and a second TRP designated as a receive (Rx) TRP. The method further includes receiving a measurement report from the second TRP based on a backscatter signal of the positioning reference signal transmitted by the first TRP. Other aspects and features are also claimed and described.

公开(公告)号：US11950210B2

公开(公告)日：2024-04-02

申请号：US17467659

申请日：2021-09-07

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Mukesh Kumar ,  Srinivas Yerramalli

IPC: H04W72/02 ,  H04L5/00 ,  H04W52/02 ,  H04W72/04 ,  H04W72/08 ,  H04W72/51 ,  H04W72/542

CPC classification number: H04W72/02 ,  H04L5/0007 ,  H04W52/0229 ,  H04W72/51 ,  H04W72/542

Abstract: A method of measuring a wireless OFDM PRS at a user equipment includes: selecting a symbol subset of a symbol group of the OFDM PRS, the OFDM PRS comprising a slot of symbols comprising the symbol group, the symbol group consisting of a first symbol quantity of consecutive ones of the symbols, the symbol group being fully staggered in frequency domain, the symbol subset consisting of a second symbol quantity of the symbols of the symbol group, the second symbol quantity being smaller than the first symbol quantity, and the symbol subset being less than fully staggered in the frequency domain; and measuring the symbol subset without measuring all of the symbols of the symbol group.

公开(公告)号：US11916812B2

公开(公告)日：2024-02-27

申请号：US16875441

申请日：2020-05-15

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia Zhang ,  Tao Luo ,  Juan Montojo ,  Jing Sun ,  Srinivas Yerramalli ,  Vinay Chande ,  Zhifei Fan ,  Olufunmilola Omolade Awoniyi-Oteri ,  Sungwoo Park ,  Arumugam Chendamarai Kannan

IPC: H04L5/00 ,  H04W72/20 ,  H04W72/54

CPC classification number: H04L5/0007 ,  H04W72/20 ,  H04W72/54

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a control channel that uses an orthogonal frequency division multiplexing (OFDM) waveform. The UE may transmit or receiving a data channel, associated with the control channel, that uses a single-carrier (SC) waveform. Numerous other aspects are provided.

公开(公告)号：US11910392B2

公开(公告)日：2024-02-20

申请号：US17374580

申请日：2021-07-13

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Mukesh Kumar ,  Guttorm Ringstad Opshaug ,  Srinivas Yerramalli

IPC: H04W72/21 ,  H04W24/08 ,  H04L5/00 ,  H04W72/0453

CPC classification number: H04W72/21 ,  H04L5/0051 ,  H04W24/08 ,  H04W72/0453

Abstract: Disclosed are various techniques for wireless communication. In an aspect, a user equipment (UE) transmits, to a serving base station, in one or more active bandwidth parts (BWPs) of the UE, a request for a no-downlink-scheduling gap, the request including at least time-domain parameters related to scheduling the no-downlink-scheduling gap, receives, from a neighboring base station, in the one or more active BWPs, a downlink positioning reference signal (DL-PRS) during the no-downlink-scheduling gap, and transmits, in the one or more active BWPs, an uplink positioning reference signal (UL-PRS) during the no-downlink-scheduling gap in response to reception of the DL-PRS.

公开(公告)号：US20240014965A1

公开(公告)日：2024-01-11

申请号：US18042582

申请日：2021-10-13

Applicant: QUALCOMM INCORPORATED

Inventor： Mostafa Khoshnevisan ,  Sony Akkarakaran ,  Srinivas Yerramalli ,  Alexandros Manolakos ,  Mukesh Kumar

IPC: H04L5/00 ,  H04B7/024

CPC classification number: H04L5/0048 ,  H04L5/0094 ,  H04B7/024

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques allow a user equipment (UE) to efficiently identify a trigger state that is linked to a configuration for receiving and measuring reference signals from a transmission and reception point (TRPs). The UE may receive an indication of different lists of trigger states associated with different TRPs, and, when the UE receives downlink control information (DCI) indicating a trigger state index, the UE may reference an appropriate list to identify the trigger state corresponding to the trigger state index. In particular, the UE may determine a control resource set (CORESET) pool index of a CORESET in which the DCI is received, and the UE may identify the trigger state corresponding to the trigger state index from a list of trigger states associated with the CORESET pool index.

公开(公告)号：US11863997B2

公开(公告)日：2024-01-02

申请号：US17172000

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Srinivas Yerramalli ,  Vinay Chande ,  Arumugam Chendamarai Kannan ,  Jing Sun ,  Xiaoxia Zhang ,  Tao Luo

IPC: H04W16/14 ,  H04L27/00 ,  H04W72/044

CPC classification number: H04W16/14 ,  H04L27/0006 ,  H04W72/046

Abstract: A wireless device uses a frame-based channel access mode to access a wireless spectrum for wireless communication. The wireless device may use transmitter-side only channel sensing to determine whether or not the spectrum is idle. The frame-based channel access mode may use a fixed frame period that includes an initial sensing period for beam-based sensing and an idle period at the end of the frame to facilitate spectrum sharing.

公开(公告)号：US11863315B2

公开(公告)日：2024-01-02

申请号：US16130877

申请日：2018-09-13

Applicant: QUALCOMM Incorporated

Inventor： Chih-Hao Liu ,  Srinivas Yerramalli ,  Tamer Kadous

IPC: H04L1/00 ,  H04L5/00 ,  H04W16/14 ,  H04W4/70 ,  H04W72/21

CPC classification number: H04L1/0013 ,  H04L5/0055 ,  H04L5/0064 ,  H04W4/70 ,  H04W16/14 ,  H04W72/21 ,  H04L5/0007 ,  H04L5/0044

Abstract: Some techniques and apparatuses described herein may be used to avoid or reduce collisions between uplink data communications and uplink control communications for an enhanced machine-type communication user equipment (eMTC UE) operating in an unlicensed radio frequency spectrum band. Furthermore, some techniques and apparatuses may avoid such collision while still allowing efficient use of resources, such as by deferring the uplink data communication within a data segment, rate matching an uplink data communication around uplink control resources (e.g., cell-specific uplink control resources and/or UE-specific uplink control resources), puncturing the uplink data communication to avoid the uplink control resources, multiplexing uplink control information on an uplink data channel, and/or the like.

公开(公告)号：US11765669B2

公开(公告)日：2023-09-19

申请号：US17207578

申请日：2021-03-19

Applicant: QUALCOMM Incorporated

Inventor： Wooseok Nam ,  Yucheng Dai ,  Tao Luo ,  Junyi Li ,  Peter Gaal ,  Sony Akkarakaran ,  Srinivas Yerramalli

IPC: H04W52/36 ,  H04W4/38 ,  H04W72/12 ,  H04L5/00 ,  H04B7/0452 ,  H04W72/23

CPC classification number: H04W52/367 ,  H04B7/0452 ,  H04L5/0051 ,  H04W4/38 ,  H04W72/23

Abstract: Aspects relate to mechanisms for wireless communication devices to environmental sensing with the assistance of a network. A UE transmits an increase transmission power request message to a base station. The UE receives an increase transmission power acceptance message from the base station in response to transmitting the increase transmission power request message. The UE transmits a transmission using an increased transmission power for reflection by at least one object based on the increase transmission power acceptance message. The UE receives a reflection of the transmission reflected off the at least one object. The UE determines at least one parameter associated with the object based on the reflection of the transmission reflected off the at least one object.

公开(公告)号：US11729726B2

公开(公告)日：2023-08-15

申请号：US17397741

申请日：2021-08-09

Applicant: QUALCOMM Incorporated

Inventor： Vinay Chande ,  Arumugam Chendamarai Kannan ,  Srinivas Yerramalli ,  Giovanni Chisci ,  Xiaoxia Zhang ,  Jing Sun ,  Tao Luo

IPC: H04W52/16 ,  H04W52/14 ,  H04W52/30

CPC classification number: H04W52/16 ,  H04W52/146 ,  H04W52/30

Abstract: A configuration to configure an apparatus to perform a clear channel assessment based on one or more transmission power levels. The apparatus measures at least one energy sensing measurement over an operating channel. The apparatus determines whether the operating channel is available for transmission based on a threshold determination for one or more transmission power levels. The apparatus transmitting on the operating channel upon the determination that the operating channel is available for transmission for the one or more transmission power levels, wherein the one or more transmission power levels are less than the threshold determination.