公开(公告)号：US20210410081A1

公开(公告)日：2021-12-30

申请号：US17269337

申请日：2019-09-26

Applicant: Qualcomm incorporated

Inventor： Huilin XU ,  Seyedkianoush HOSSEINI ,  Yuwei REN ,  Alexandros MANOLAKOS ,  Yiqing CAO ,  Joseph Binamira SORIAGA

IPC: H04W52/24 ,  H04J11/00 ,  H04W24/02 ,  H04L5/14 ,  H04W52/14

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for managing remote interference using a previously detected relationship between an aggressor base station and a victim base station. The described techniques provide for allocating reference signal sequences for various victim base stations to send to an aggressor base station. The victim base station may trigger the aggressor base station to perform reference signal monitoring based on the previously detected victim-aggressor relationship, and may transmit a reference signal carrying a unique identifier based on the triggering. The first base station may send a request that the second base station to transmit a reference signal for enabling the first base station to measure interference of a wireless channel, and performing interference mitigation techniques at the first base station, the second base station, or both, to mitigate the remote interference.

公开(公告)号：US20210409152A1

公开(公告)日：2021-12-30

申请号：US17350931

申请日：2021-06-17

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Lorenzo FERRARI ,  Srinivas YERRAMALLI ,  Yih-Hao LIN ,  Jing SUN ,  Alexandros MANOLAKOS ,  Rajat PRAKASH ,  Marwen ZORGUI

IPC: H04L1/00 ,  H04L25/02 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives a sounding reference signal (SRS) resource configuration, the SRS resource configuration indicating at least a comb pattern for at least one SRS resource allocated to the UE and a puncturing unit for the comb pattern, wherein the comb pattern is divided into one or more puncturing units, wherein each puncturing unit comprises one or more time units of the comb pattern, and wherein each of the one or more time units comprises two or more symbols, and refrains from transmitting all SRS transmissions of the at least one SRS resource within a first puncturing unit of the one or more puncturing units based on a determination that one or more SRS transmissions of the at least one SRS resource within the first puncturing unit are to be dropped.

公开(公告)号：US20210400734A1

公开(公告)日：2021-12-23

申请号：US17335982

申请日：2021-06-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxia ZHANG ,  Srinivas YERRAMALLI ,  Lorenzo FERRARI ,  Yih-Hao LIN ,  Jing SUN ,  Rajat PRAKASH ,  Alexandros MANOLAKOS

IPC: H04W74/08 ,  H04W52/02 ,  H04L5/00 ,  H04B17/10 ,  H04W72/04

Abstract: A user equipment (UE) transmits reference signals for positioning while in Idle or Inactive state. While in a connected state, the UE is pre-configured with Sounding Reference Signal (SRS) resource configuration including at least one of timing adjustment (TA) and an uplink (UL) transmission spatial filter. The UE transmits positioning SRS while in Idle or Inactive mode based on the pre-configuration. The TA and UL transmission spatial filter may be updated by a serving base station using control signals or a paging message received by the UE while in in Idle or Inactive mode. The validity of the TA and UL transmission spatial filter may be monitored using expiration timers or a relative position change threshold. The reference signals transmitted may be based on a UE may Physical Random Access Channel (PRACH), which is insensitive to TA changes. A long sequence PRACH may be used for improved positioning accuracy.

公开(公告)号：US20210400626A1

公开(公告)日：2021-12-23

申请号：US17349245

申请日：2021-06-16

Applicant: QUALCOMM Incorporated

Inventor： Srinivas YERRAMALLI ,  Lorenzo FERRARI ,  Taesang YOO ,  Alexandros MANOLAKOS ,  Yih-Hao LIN ,  Xiaoxia ZHANG ,  Rajat PRAKASH ,  Marwen ZORGUI ,  Danlu ZHANG

IPC: H04W64/00 ,  G01S5/06 ,  G01S5/10 ,  G01S5/02 ,  H04L5/00

Abstract: Techniques are provided for passive positioning of user equipment (UE). An example method for passive positioning of a user equipment includes receiving a first positioning reference signal from a first station at a first time, receiving a second positioning reference signal from a second station at a second time, receiving a turnaround time value associated with the first positioning reference signal and the second positioning reference signal, and a distance value based on a location of the first station and a location of the second station, and determining a time difference of arrival based at least in part on the turnaround time value, the distance value, the first time, and the second time.

公开(公告)号：US20210392024A1

公开(公告)日：2021-12-16

申请号：US17461679

申请日：2021-08-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Jing JIANG ,  June NAMGOONG ,  Tao LUO ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04L27/26 ,  H04W72/04 ,  H04L5/00 ,  H04W76/28

Abstract: Aspects of the present disclosure provide a wireless device that communicates with another wireless device utilizing self-contained subframes. The wireless device communicates with a scheduling entity utilizing a plurality of self-contained subframes that include a first subframe and a second subframe. Each of the self-contained subframes includes an uplink (UL) portion and a downlink (DL) portion. The wireless device further receives DL control information from the scheduling entity in the DL portion of the first subframe, and transmits UL data that includes a plurality of reference signal bursts to the scheduling entity in the UL portion of the first subframe. The plurality of reference signal bursts are uniformly spaced in at least a portion of the UL portion of the first subframe.

公开(公告)号：US20210377897A1

公开(公告)日：2021-12-02

申请号：US17326981

申请日：2021-05-21

Applicant: QUALCOMM Incorporated

Inventor： Jingchao BAO ,  Sony AKKARAKARAN ,  Alexandros MANOLAKOS ,  Tao LUO

IPC: H04W64/00

Abstract: Disclosed are techniques for wireless positioning. In an aspect, a user equipment (UE) receives a plurality of downlink positioning reference signals (DL-PRS) transmitted by a corresponding plurality of cells, wherein the plurality of cells is grouped into one or more groups, wherein each of the one or more groups is associated with one or more attributes, and wherein each cell of each of the one or more groups has the same values of the one or more attributes, reports, to a positioning entity, at least one baseline positioning measurement for at least one representative cell of at least one group of the one or more groups based on DL-PRS transmitted by the at least one representative cell, and reports, to the positioning entity, differential positioning measurements for cells of the at least one group based on the at least one baseline positioning measurement.

公开(公告)号：US20210377698A1

公开(公告)日：2021-12-02

申请号：US17330861

申请日：2021-05-26

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Jingchao BAO ,  Lorenzo FERRARI ,  Yih-Hao LIN ,  Sony AKKARAKARAN

IPC: H04W4/029 ,  H04L5/00 ,  G01S5/02 ,  G01S5/10

Abstract: Methods, systems, computer-readable media, and apparatuses are described for reporting, in support of positioning a UE, information about consistencies of positioning reference signal (PRS) measurements, PRS resources, PRS resource sets, or transmission and reception points (TRPs). In some embodiments, a UE receives PRS resources from TRPs and performs PRS measurements based on the PRS resources. The UE determines whether certain PRS measurements, PRS resources, PRS resource sets, or TRPs contribute to a consistent position estimate and/or consistent positioning measurements. The UE reports to a device, such as to a location server, information about consistent groups, where each consistent group identifies a set of such consistent elements.

公开(公告)号：US20210368298A1

公开(公告)日：2021-11-25

申请号：US17325014

申请日：2021-05-19

Applicant: QUALCOMM Incorporated

Inventor： Guttorm Ringstad OPSHAUG ,  Weimin DUAN ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Charles Edward WHEATLEY

IPC: H04W4/029 ,  H04L5/00 ,  H04L27/26 ,  G01S5/02

Abstract: Techniques are provided for time-domain processing of DL-PRS signals under certain conditions in which time-domain processing has a computational advantage over frequency-domain processing. Because of this, embodiments can provide positioning at a lower computational cost than positioning provided by traditional techniques utilizing only frequency-domain processing. This reduced computational cost can improve the battery life of mobile devices, ultimately resulting in a better user experience.

公开(公告)号：US20210368297A1

公开(公告)日：2021-11-25

申请号：US17323566

申请日：2021-05-18

Applicant: QUALCOMM Incorporated

Inventor： Yih-Hao LIN ,  Alexandros MANOLAKOS ,  Lorenzo FERRARI ,  Xiaoxia ZHANG ,  Taesang YOO

IPC: H04W4/029 ,  H04L5/00 ,  G01S5/02 ,  G01S5/10

Abstract: A example method of determining a positioning signal measurement includes: sending, from a user equipment to a network entity, a processing-capability message indicating a processing capability of the user equipment for processing an aggregated positioning reference signal, where the processing-capability message corresponds to one or more assistance-data types; obtaining, at the user equipment, the aggregated positioning reference signal; and processing, at the user equipment, the aggregated positioning reference signal based on assistance data to determine the positioning signal measurement, the assistance data including the one or more assistance-data types.

公开(公告)号：US20210337411A1

公开(公告)日：2021-10-28

申请号：US17024335

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN

IPC: H04W24/10 ,  H04B17/336 ,  H04B17/318 ,  H04L25/02 ,  H04J13/00 ,  H04L5/00 ,  H04L27/26

Abstract: Aspects described herein relate to cross-link interference (CLI) measurement based on enhanced sounding reference signal (SRS) in fifth generation new radio (5G NR). In an example, the aspects may include receiving, by a first user equipment (UE) from a network entity, a SRS configuration; measuring, by the first UE, CLI between the first UE and a second UE based on the SRS configuration; and transmitting, by the first UE to the network entity, a measurement report of the CLI measurement to trigger CLI management between the first UE and the second UE.