公开(公告)号：US20240007236A1

公开(公告)日：2024-01-04

申请号：US18255096

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN

IPC: H04L5/00

CPC classification number: H04L5/0007 ,  H04L5/0048

Abstract: A shared physical channel can be used for passive radio frequency (RF) sensing of an object in a wireless communication network. Embodiments can comprise methods, devices, systems, and/or other means for receiving the shared physical channel, where the shared physical channel is received via RF signals transmitted by a transmitting device and reflected to the receiving device from the object. Data of the shared physical channel can be decoded based on a demodulation reference signal (DMRS) of the shared physical channel. Subsequent to decoding, modulation symbols used to transmit the shared physical channel and DMRS can be reconstructed. One or more RF sensing measurements of the object can be made using the reconstructed modulation symbols.

公开(公告)号：US20230422190A1

公开(公告)日：2023-12-28

申请号：US18252033

申请日：2021-12-13

Applicant: QUALCOMM Incorporated

Inventor： Mukesh KUMAR ,  Alexandros MANOLAKOS ,  Guttorm Ringstad OPSHAUG ,  Srinivas YERRAMALLI ,  Fnu SIDDHANT ,  Pulkit RAJGADIYA

IPC: H04W56/00 ,  H04W48/16

CPC classification number: H04W56/001 ,  H04W48/16

Abstract: A user equipment (UE) associated with a wireless network determines a first reference signal time difference value. The UE determines a first RSTD estimate and a first RSTD uncertainty associated with the first RSTD value, identifies a search interval for the first RSTD value, the search interval extending from a difference between the first RSTD estimate and the first RSTD uncertainty to a sum of the first RSTD estimate and the first RSTD uncertainty, receives wireless signals during the identified search interval, determines a Fast Fourier Transform (FFT) window offset for decoding a first positioning reference signal (PRS) received during the identified search interval, and determines the first RSTD value based at least in part on the determined FFT window offset.

公开(公告)号：US20230408677A1

公开(公告)日：2023-12-21

申请号：US18251205

申请日：2021-12-21

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK

IPC: G01S13/87 ,  G01S13/00 ,  G01S7/00

CPC classification number: G01S13/878 ,  G01S13/003 ,  G01S7/006 ,  G01S2013/464

Abstract: Techniques are disclosed for determining an object's location by using a Reconfigurable Intelligent Surface (RIS) to aid in RF sensing. Radar techniques can be used in which one or more base stations act as a transmitter and a receiving device acts as a receiver in a bistatic or multi-static radar configuration where an RIS directs signals transmitted by the one or more base stations to the receiving device. By comparing the time a line-of-sight (LOS) signal (redirected to the receiving device by the RIS) is received by the receiving device with that of an echo signal (redirected to the receiving device by the RIS) from a reflection of an RF signal from the object, a position of the object can be determined. Depending on desired functionality, this position can be determined by the receiving device or by a location server or other network entity.

公开(公告)号：US20230379885A1

公开(公告)日：2023-11-23

申请号：US18248630

申请日：2021-12-21

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Mukesh KUMAR ,  Alexandros MANOLAKOS

IPC: H04W68/06 ,  H04W64/00 ,  H04L5/00

CPC classification number: H04W68/06 ,  H04W64/00 ,  H04L5/0048

Abstract: Disclosed are techniques for wireless communication. In an aspect, a base station (BS) transmits, to a user equipment (UE), a first configuration of a first radio access network notification area (RNA) associated with paging of the UE while the UE is in an radio resource control (RRC) INACTIVE state, the first RNA comprising a first set of cells. In a further aspect, the BS transmits, to the UE, a second configuration of a second RNA associated with positioning of the UE while the UE is in the RRC INACTIVE state, the second RNA comprising a subset of the first set of cells.

公开(公告)号：US20230370890A1

公开(公告)日：2023-11-16

申请号：US18044907

申请日：2020-11-23

Applicant: QUALCOMM INCORPORATED

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Yu ZHANG ,  Jay Kumar SUNDARARAJAN ,  Alexandros MANOLAKOS ,  Ahmed ELSHAFIE ,  Krishna Kiran MUKKAVILLI ,  Hwan Joon KWON ,  Tingfang JI

IPC: H04W28/02 ,  H04L1/00 ,  H04W76/30

CPC classification number: H04W28/0268 ,  H04L1/0068 ,  H04W76/30

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for a device such as a user equipment (UE), a base station, or both, to perform a channel noise and interference estimation based on a set of null resources in a data channel. The device may identify a first configuration for a set of demodulation reference signals (DMRSs) in a first set of time periods of a data channel and a second configuration for a set of null resources in a second set of time periods of the data channel. The second set of time periods may be nonoverlapping with the first set of time periods. The device may perform a channel estimation procedure on the data channel based on the null resources and the DMRS resources. The device may process data received via resources of the data channel based on the channel estimation procedure.

公开(公告)号：US20230370230A1

公开(公告)日：2023-11-16

申请号：US18245023

申请日：2021-11-30

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Hung Dinh LY ,  Jing LEI ,  Yongjun KWAK ,  Yuchul KIM ,  Huilin XU ,  Hwan Joon KWON

IPC: H04L5/00

CPC classification number: H04L5/0051 ,  H04L5/0053

Abstract: A signal processing method includes: receiving, at a UE, a PRS and a supplemental signal, the supplemental signal being a broadcast signal and spanning a first frequency range at least partially outside of a second frequency range spanned by the PRS; processing, at the UE, the PRS and the supplemental signal in combination, resulting in an effective signal bandwidth that is larger than the second frequency range, to determine position information; and at least one of: transmitting a capability message, from the UE to a network entity, indicating a processing capability of the UE to process, in combination, the PRS and the supplemental signal; or transmitting a signal-combination indication, from the UE to the network entity, indicating that the UE processed the PRS and the supplemental signal in combination to determine the position information.

公开(公告)号：US20230366976A1

公开(公告)日：2023-11-16

申请号：US18246660

申请日：2021-10-04

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Xiaoxin ZHANG ,  Peyman SIYARI ,  Bala RAMASAMY

IPC: G01S5/08 ,  G01S5/00 ,  G01S5/02

CPC classification number: G01S5/08 ,  G01S5/0018 ,  G01S5/0236

Abstract: Disclosed are various techniques for wireless positioning. In an aspect, a user equipment (UE) determines one or more angle-based measurements of one or more reference signal resources transmitted by or received at the UE on one or more antennas of the UE and reports, to a positioning entity, the one or more angle-based measurements, a beam pattern associated with the one or more reference signal resources, a type of the one or more antennas, locations of the one or more antennas on the UE, an orientation of the one or more antennas, or any combination thereof.

公开(公告)号：US20230354246A1

公开(公告)日：2023-11-02

申请号：US18006527

申请日：2020-08-05

Applicant: QUALCOMM Incorporated

Inventor： Yiqing CAO ,  Wanshi CHEN ,  Sony AKKARAKARAN ,  Alexandros MANOLAKOS ,  Jing LEI

IPC: H04W64/00 ,  H04L5/00 ,  H04L5/14

CPC classification number: H04W64/00 ,  H04L5/0051 ,  H04L5/14

Abstract: A UE includes: an interface comprising at least one of a receiver and a transmitter; a memory; and a processor, communicatively coupled to the interface and the memory, configured to: identify a processing conflict for an exchange of a first UE-to-UE location reference signal and an exchange of a first radio-network-interface signal; determine a priority of the exchange of the first UE-to-UE location reference signal and the exchange of the first radio-network-interface signal; and exchange, via the interface, one of the first UE-to-UE location reference signal or the first radio-network-interface signal according to the priority.

公开(公告)号：US20230353297A1

公开(公告)日：2023-11-02

申请号：US17905727

申请日：2020-04-26

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Yu ZHANG ,  Seyed Ali Akbar FAKOORIAN ,  Alexandros MANOLAKOS ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04W8/24 ,  H04B7/0404

CPC classification number: H04L5/0041 ,  H04W8/24 ,  H04B7/0404

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may transmit, to a base station, a UE capability message indicating support for at least a first demodulation mode or a second demodulation mode. The first demodulation mode may correspond to a single demodulation procedure associated with a set of antenna ports at the UE, and the second demodulation mode may correspond to multiple demodulation procedures, each procedure associated with a respective subset of antenna ports at the UE. In some cases, the UE may flexibly switch between demodulation modes. The UE may receive, from the base station, one or more downlink signals via one or more downlink beams based on the indication of the first demodulation mode or the second demodulation mode. The UE may demodulate the one or more downlink signals based on the indicated (e.g., an active) demodulation mode.

公开(公告)号：US20230344590A1

公开(公告)日：2023-10-26

申请号：US18005092

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Runxin WANG ,  Pinar SEN ,  Yu ZHANG

IPC: H04L5/00 ,  H04W72/232

CPC classification number: H04L5/0051 ,  H04L5/0012 ,  H04W72/232

Abstract: Aspects relate to sounding on a subset of available sounding resources. A user equipment (UE) may transmit a sounding reference signal (SRS) on a subset of the frequency resources available for a hop of an SRS hopping sequence. A UE may be configured to use a subset of frequency resources or the UE may autonomously identify this subset. A base station may send a bit map to a UE to indicate the subset of resources to use for a hop. Each bit of the bit map may indicate that the UE is to transmit an SRS on a particular RB or on a particular groups of RBs. The same subset of resources may be designated for each hop or different subsets of resources may be designated for different hops. An indication of the subset of resources may be provided for each hop. The subset of resources may be cycled for different hops.