公开(公告)号：US20230164846A1

公开(公告)日：2023-05-25

申请号：US17907938

申请日：2021-04-08

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Jing LEI ,  Huilin XU ,  Alexandros MANOLAKOS

IPC: H04W74/08 ,  H04W64/00

CPC classification number: H04W74/0833 ,  H04W64/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may transmit, to a base station, an indication of a selected random access channel (RACH) procedure that is selected based at least in part on positioning state information (PSI) associated with the UE, wherein the PSI is based at least in part on one or more positioning measurements obtained by the UE; and receive, from the base station, a configuration of resources for the selected RACH procedure. Numerous other aspects are provided.

公开(公告)号：US20230144227A1

公开(公告)日：2023-05-11

申请号：US17906850

申请日：2021-05-24

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Gokul SRIDHARAN ,  Weimin DUAN ,  Jay Kumar SUNDARARAJAN ,  Hwan Joon KWON ,  Wanshi CHEN ,  Krishna Kiran MUKKAVILLI ,  Naga BHUSHAN

IPC: G01S5/00 ,  H04L5/00 ,  H04W72/1273 ,  H04W72/21

CPC classification number: G01S5/0036 ,  H04L5/0051 ,  H04W72/1273 ,  H04W72/21

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a demodulation reference signal (DMRS) and a physical downlink shared channel (PDSCH) associated with the DMRS, the DMRS and the PDSCH spanning a plurality of symbols of a slot, decodes the PDSCH, performs a positioning measurement based on the DMRS and the decoded PDSCH, and reports, to a location server, the positioning measurement or location information derived at least based on the positioning measurement.

公开(公告)号：US20230112322A1

公开(公告)日：2023-04-13

申请号：US17910767

申请日：2021-03-17

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Wanshi CHEN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI ,  Naga BHUSHAN

IPC: H04W64/00

Abstract: A user equipment (UE) generates a positioning state information (PSI) report that is transmitted in a lower layer channel container, e.g., in the Physical channel or Medium Access Control channel, to a network entity to reduce latency. The PSI report is generated based on a plurality of PSI report elements determined from uplink (UL), downlink (DL) or UL and DL positioning measurements performed by the UE. Each PSI report element includes information related to positioning measurements performed by the UE. The transmission of at least one PSI report element generated by the UE may be postponed and not included in a current PSI report. The PSI report includes one or more indications of postponement, indicating that one or more PSI report elements have been postponed. A serving base station may grant a lower layer channel container for a second PSI report to contain the previously postponed PSI report elements.

公开(公告)号：US20230077142A1

公开(公告)日：2023-03-09

申请号：US17470735

申请日：2021-09-09

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Jun MA ,  Weimin DUAN ,  Mehmet Izzet GURELLI ,  Qiang WU

IPC: H04L27/26 ,  H04L5/00

Abstract: Example implementations include a method, apparatus and computer-readable medium of wireless communication for applying resource element (RE) skipping to a symbol where a beam change is to occur. A transmitter and a receiver determine that a beam change is to occur during the symbol. The transmitter allocates bits to a subset of REs for the symbol in a frequency domain allocation. Each RE of the subset is spaced apart by a number of empty REs. The transmitter performs an inverse fast Fourier transform (IFFT) on the REs to generate a time domain signal including a number of repetitions of a transmitted waveform. The receiver receives the time domain signal during at least a portion of the symbol. The receiver performs a fast Fourier transform (FFT) on the time domain signal and determines transmitted bits or a channel from the subset of REs output from the FFT.

公开(公告)号：US20230069865A1

公开(公告)日：2023-03-09

申请号：US18054417

申请日：2022-11-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Hung Dinh LY

IPC: H04W64/00 ,  H04B17/27 ,  H04B17/318 ,  H04B17/336

Abstract: Wireless positioning accuracy of a user equipment (UE) is impacted by locations of the transmit/receive points (TRPs) and UE for wireless positioning. To improve the accuracy of estimated locations, a geometric dilution of precision (GDOP) may be determined for different groups of candidate TRPs, with the GDOP indicating a potential positioning error associated with the group of candidate TRPs. A UE may determine GDOPs for different combinations of candidate TRPs. One or more devices of a wireless network (e.g., a location server and/or a UE for positioning) may select or exclude one or more candidate TRPs from being used for wireless positioning of a UE based on the determined GDOPs. Exclusion or selection of candidate TRPs for wireless positioning may also be based on quality measurements of PRSs (such as an RSRP or SNR) or a time duration associated with measuring the PRSs from the candidate TRPs to be selected.

公开(公告)号：US20230054832A1

公开(公告)日：2023-02-23

申请号：US17759691

申请日：2020-09-04

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Alexandros MANOLAKOS ,  Weimin DUAN

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, from abase station, a sounding reference signal (SRS) configuration indicating a number of candidate slots for transmission of a multi-slot aperiodic SRS (A-SRS); receive, from the base station, an SRS trigger, the SRS trigger comprising an indication of an A-SRS resource set, the A-SRS resource set comprising a plurality of A-SRS resources corresponding to the number of candidate slots; and transmit, in response to the SRS trigger, the multi-slot A-SRS in one or more of a plurality of candidate slots using at least a portion of the A-SRS resource set. Numerous other aspects are provided.

公开(公告)号：US20230050730A1

公开(公告)日：2023-02-16

申请号：US17760092

申请日：2021-02-04

Applicant: QUALCOMM Incorporated

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Alexandros MANOLAKOS ,  Weimin DUAN ,  Sony AKKARAKARAN

IPC: H04L5/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for transmitting sounding reference signal (SRS) resources with frequency hopping. In some implementations, a user equipment (UE) may use different SRS ports, different antenna ports, different numbers and sizes of SRS resources, different periodicities, different offsets, different transmission comb values, different number of symbols, different power control parameters, and/or different transmission comb offset values for SRS transmissions on different frequency subbands of the frequency hopping pattern to ensure that sounding operations cover all antennas of the UE, cover the entire frequency range of interest, and provide sufficiently dense SRS transmissions from which a base station can determine the best channel for DL transmissions while also using a minimum amount of SRS resources and consuming minimal power in the UE.

公开(公告)号：US20230035261A1

公开(公告)日：2023-02-02

申请号：US17788787

申请日：2020-12-21

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Huilin XU

IPC: G01S13/76 ,  H04W64/00

Abstract: Techniques for positioning a NR bandwidth-limited user equipment (UE) are provided. An example method of positioning performed by a bandwidth-limited UE includes transmitting a first timing measurement signal to at least one proximate premium UE, wherein the at least one proximate premium UE is capable of using more bandwidth than the bandwidth-limited UE, receiving a second timing measurement signal from the at least one proximate premium UE, and determining location information for the bandwidth-limited UE based at least on the first timing measurement signal and the second timing measurement signal.

公开(公告)号：US20230030823A1

公开(公告)日：2023-02-02

申请号：US17758523

申请日：2020-02-13

Applicant: QUALCOMM INCORPORATED

Inventor： Runxin WANG ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Yu ZHANG ,  Alexandros MANOLAKOS ,  Weimin DUAN

IPC: H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a UE may receive an indication of a set of sounding reference signal (SRS) parameters corresponding to a set of SRS resources for transmitting SRSs, where the set of SRS resources may refer to frequency, or time, or both. In some examples, the SRS parameters may include, among other examples, a frequency allocation, a frequency overlap parameter, a number of allocated symbols, a comb value, a cyclic shift, a comb offset, a frequency hopping parameter, a repetition parameter, a symbol grouping parameter, or any combination thereof. The UE may determine an SRS configuration for the one or more SRSs based on the set of SRS parameters and transmit the one or more SRSs based on the configuration. In some examples, the SRS configuration includes a configuration for SRS frequency hopping, or SRS repetition, or both.

公开(公告)号：US20220397632A1

公开(公告)日：2022-12-15

申请号：US17777947

申请日：2020-11-13

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Huilin XU

IPC: G01S5/00 ,  H04W76/14 ,  H04W24/10 ,  H04L5/00

Abstract: Techniques for positioning a bandwidth-limited user equipment (UE) are provided. An example method of positioning performed by a bandwidth-limited UE according to the disclosure includes receiving a first timing measurement signal from at least one proximate UE, wherein the at least one proximate UE is capable of using more bandwidth than the bandwidth-limited UE, and transmitting a second timing measurement signal to the at least one proximate user equipment.