-
公开(公告)号：US20240012129A1
公开(公告)日：2024-01-11
申请号：US18018535
申请日：2021-09-01
Applicant: QUALCOMM Incorporated
Inventor： Weimin DUAN , Alexandros MANOLAKOS , Seyong PARK
Abstract: Downlink and uplink Time Difference of Arrival (TDOA) is performed using Reference Signal Time Difference (RSTD) measurements. The transmissions and measurements of positioning reference signals (PRS) are configured to mitigate or eliminate network synchronization errors which conventionally limit positioning accuracy of TDOA. The synchronization errors are mitigated using inter-base station PRS, and transmission of the PRS in response to receipt of the initial reference signal. For DL TDOA, a reference base station may transmit PRS to the user equipment (UE) and neighboring base station. In response, the neighboring base station transmits PRS to the UE. The RSTD may be determined as the difference in the time of reception of the PRS signals received at the UE after removal of the total delay for transmitting the PRS by the neighboring base station, including propagation time and processing time. The RSTD for UL TDOA may be determined in a similar manner.
-
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：US20230413075A1
公开(公告)日：2023-12-21
申请号：US17807657
申请日：2022-06-17
Applicant: QUALCOMM Incorporated
Inventor： Weimin DUAN , Hung Dinh LY , Hyojin LEE
IPC: H04W24/08
CPC classification number: H04W24/08
Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) determines a transmit power of at least one sensing reference signal (S-RS) transmitted by a network node, wherein the transmit power of the at least one S-RS is determined based on a transmit power offset relative to a transmit power of a reference channel or reference signal transmitted by the network node, and determines an enhanced channel estimate of the at least one S-RS based on the transmit power of the at least one S-RS.
-
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
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：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.
-
Patent Agency Ranking
146.发明公开公开(公告)号：US20230337154A1
公开(公告)日：2023-10-19
申请号：US17659166
申请日：2022-04-13
Applicant: QUALCOMM Incorporated
Inventor： Huilin XU , Lianghai JI , Weimin DUAN , Liangping MA , Qiang WU , Jun MA , Mohamad SAYED HASSAN , Mehmet Izzet GURELLI , Karthik ANANTHA SWAMY
IPC: H04W56/00 , H04W24/10 , H04B17/336
CPC classification number: H04W56/001 , H04W24/10 , H04B17/336 , H04W84/06
Abstract: A first UE may obtain at least one parameter associated with an Rx timing of one or more CLI measurement resources. The one or more CLI measurement resources may be associated with CLI between the first UE and at least one second UE. The first UE may further refrain from receiving one or more serving DL channels or resources from a network node during the Rx timing based on the at least one parameter. The one or more serving DL channels or resources may overlap with at least one symbol of the one or more CLI measurement resources.
-
公开(公告)号：US20230319765A1
公开(公告)日：2023-10-05
申请号：US18023695
申请日：2021-10-05
Applicant: QUALCOMM Incorporated
Inventor： Alexandros MANOLAKOS , Weimin DUAN , Jay Kumar SUNDARARAJAN , Hwan Joon KWON , Krishna Kiran MUKKAVILLI , Wanshi CHEN
Abstract: During a positioning session in which multiple location reports are provided, a user equipment (UE) that has little or no movement may provide an indication to an entity in the wireless network that there is no update for one or more location measurements. The UE may provide the indication to a serving base station in a Physical layer waveform. The base station may bypass the location server and provide an indication to an external client that the UE position has not changed. The UE may provide the indication to a location server in a location information report or by not sending a location information report by an expiration time. The indication of no update may be provided by a bit that indicates no location measurements are updated or that a particular location measurement is not updated.
-
公开(公告)号：US20230314591A1
公开(公告)日：2023-10-05
申请号：US17657310
申请日：2022-03-30
Applicant: QUALCOMM Incorporated
Inventor： Hyojin LEE , Weimin DUAN , June NAMGOONG
CPC classification number: G01S13/86 , G01S13/581 , G01S13/225
Abstract: Certain aspects of the present disclosure provide techniques for joint communication and radar sensing. A method is provided for wireless communications by a network entity. The method generally includes communicating one or more radar signals in a first set of slots. Each of the first set of slots comprises an extended cyclic prefix have a first length. The method generally includes communicating one or more signals in a second set of slots, each of the second set of slots comprising a normal cyclic prefix having a second length that is shorter than the first length.
-
公开(公告)号：US20230291519A1
公开(公告)日：2023-09-14
申请号：US17691799
申请日：2022-03-10
Applicant: QUALCOMM Incorporated
Inventor： Weimin DUAN , Lianghai JI , Huilin XU , Liangping MA , Mehmet Izzet GURELLI , Qiang WU , Karthik ANANTHA SWAMY
IPC: H04L5/00
CPC classification number: H04L5/0048
Abstract: Systems and techniques are provided for wireless communications at a network entity. For example, then systems and techniques can include determining, at the network entity, a transmission timing compensation between a first reference signal and a second reference signal. The first reference signal can be transmitted using a first communication link. The second reference signal can be transmitted based on an offset determined based on the transmission timing compensation, wherein the second reference signal is transmitted suing a second communication link. The offset can be used to offset transmission of the second reference signal from transmission of the first reference signal.
-
公开(公告)号：US20230291468A1
公开(公告)日：2023-09-14
申请号：US17691855
申请日：2022-03-10
Applicant: QUALCOMM Incorporated
Inventor： Weimin DUAN , Huilin XU , Lianghai JI , Mehmet Izzet GURELLI , Jun MA , Qiang WU , Bala RAMASAMY , Karthik ANANTHA SWAMY
CPC classification number: H04B7/18554 , H04W56/0045 , H04W56/0065 , H04B7/18565 , H04L5/0048
Abstract: Systems and techniques are provided for wireless communications performed at a network entity. For example, the systems and techniques can include obtaining, at the network entity, a target relative time difference (RTD). A transmission timing pre-compensation can be determined at the network entity between a first reference signal and a second reference signal, wherein the transmission timing pre-compensation is determined based on the target RTD and one or more network delay components. The first reference signal and the second reference signal can be transmitted using the transmission timing pre-compensation to offset the first reference signal from the second reference signal by the target RTD.
-
-
-
-
-
-
-
-
-
Search Results
298
records
(took 0.028 seconds)
