PH12022550038A1 - Configurable coordinate system for angle reporting for positioning - Google Patents

Configurable coordinate system for angle reporting for positioning

Info

Publication number
PH12022550038A1
PH12022550038A1 PH1/2022/550038A PH12022550038A PH12022550038A1 PH 12022550038 A1 PH12022550038 A1 PH 12022550038A1 PH 12022550038 A PH12022550038 A PH 12022550038A PH 12022550038 A1 PH12022550038 A1 PH 12022550038A1
Authority
PH
Philippines
Prior art keywords
angle
coordinate system
based measurements
positioning
configurable
Prior art date
Application number
PH1/2022/550038A
Other languages
English (en)
Inventor
Sony Akkarakaran
Sven Fischer
Alexandros Manolakos
Guttorm R Opshaug
Joseph B Soriaga
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of PH12022550038A1 publication Critical patent/PH12022550038A1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/28—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived simultaneously from receiving antennas or antenna systems having differently-oriented directivity characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/026—Services making use of location information using location based information parameters using orientation information, e.g. compass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/765—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted with exchange of information between interrogator and responder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/043—Receivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/04—Details
    • G01S3/10—Means for reducing or compensating for quadrantal, site, or like errors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0018—Transmission from mobile station to base station
    • G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0045—Transmission from base station to mobile station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0045—Transmission from base station to mobile station
    • G01S5/0054—Transmission from base station to mobile station of actual mobile position, i.e. position calculation on base station
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0045—Transmission from base station to mobile station
    • G01S5/0063—Transmission from base station to mobile station of measured values, i.e. measurement on base station and position calculation on mobile
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009—Transmission of position information to remote stations
    • G01S5/0081—Transmission between base stations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205—Details
    • G01S5/0221—Receivers
    • G01S5/02213—Receivers arranged in a network for determining the position of a transmitter
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0247—Determining attitude
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/04—Position of source determined by a plurality of spaced direction-finders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/08—Position of single direction-finder fixed by determining direction of a plurality of spaced sources of known location
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Alarm Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
PH1/2022/550038A 2019-08-12 2020-08-12 Configurable coordinate system for angle reporting for positioning PH12022550038A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GR20190100349 2019-08-12
US16/990,197 US12196868B2 (en) 2019-08-12 2020-08-11 Configurable coordinate system for angle reporting for positioning
PCT/US2020/045946 WO2021030444A1 (en) 2019-08-12 2020-08-12 Configurable coordinate system for angle reporting for positioning

Publications (1)

Publication Number Publication Date
PH12022550038A1 true PH12022550038A1 (en) 2023-09-11

Family

ID=74568169

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2022/550038A PH12022550038A1 (en) 2019-08-12 2020-08-12 Configurable coordinate system for angle reporting for positioning

Country Status (9)

Country Link
US (1) US12196868B2 (https=)
EP (1) EP4014060A1 (https=)
JP (1) JP7530960B2 (https=)
KR (1) KR20220045959A (https=)
CN (1) CN114223221B (https=)
BR (1) BR112022001955A2 (https=)
PH (1) PH12022550038A1 (https=)
TW (1) TWI879786B (https=)
WO (1) WO2021030444A1 (https=)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12461184B2 (en) * 2020-06-18 2025-11-04 Sony Group Corporation Angle of departure estimation based on channel impulse response
CN116830630A (zh) * 2021-01-15 2023-09-29 索尼集团公司 基于离开角的位置估计
US20240053426A1 (en) * 2021-03-08 2024-02-15 Telefonaktiebolaget Lm Ericsson (Publ) Orientation Determination of a Wireless Device
CN113099405B (zh) * 2021-03-11 2021-12-17 武汉大学 一种基于发射角估计的音频定位方法
EP4315705A4 (en) 2021-03-29 2025-05-21 Nokia Technologies Oy TRANSMIT BEAFORMER FOR POSITIONING
CN115150936B (zh) * 2021-03-31 2025-10-31 大唐移动通信设备有限公司 定位方法、装置、设备及存储介质
US20220330041A1 (en) * 2021-04-06 2022-10-13 Lg Electronics Inc. Method for angle based positioning measurement and apparatus therefor
US20240205877A1 (en) * 2021-04-12 2024-06-20 Telefonaktiebolaget Lm Ericsson (Publ) Methods, access node and network node for addressing ambiguities in angle of arrival estimation
CN115334527B (zh) * 2021-05-11 2024-04-23 大唐移动通信设备有限公司 定位方法、设备及处理器可读存储介质
CN117377883A (zh) * 2021-06-08 2024-01-09 利拉伐控股有限公司 系统、计算机实现的定位方法、计算机程序和非易失性数据载体
CN117693688B (zh) * 2021-07-20 2026-04-24 三菱电机株式会社 测位装置、测位方法以及计算机能读取的记录介质
CN113740620B (zh) * 2021-08-06 2022-06-03 北京航天长征飞行器研究所 一种相控阵天线快速校准测试系统及方法
US11894909B2 (en) * 2021-09-03 2024-02-06 Apple Inc. Sensor assisted beam tracking
US20240389066A1 (en) * 2021-10-29 2024-11-21 Qualcomm Incorporated Beam information in dl-aod positioning
US20240272267A1 (en) * 2021-11-05 2024-08-15 Intel Corporation Aoa measurement and reference point location information association
EP4180833A1 (en) 2021-11-16 2023-05-17 TMY Technology Inc. Method for measuring angle of arrival with phased array
TWI800102B (zh) * 2021-11-16 2023-04-21 財團法人工業技術研究院 載具頭向補償方法及系統
EP4466552A1 (en) * 2022-06-15 2024-11-27 Lenovo (Singapore) Pte. Ltd. Wireless angle-based positioning
WO2024010636A1 (en) * 2022-07-08 2024-01-11 Qualcomm Incorporated Multiple access techniques in ultra-wideband (uwb) positioning
US20260040119A1 (en) * 2022-08-11 2026-02-05 Lg Electronics Inc. Method and device for transmitting or receiving wireless signal in wireless communication system
CN119698816A (zh) * 2022-10-28 2025-03-25 Oppo广东移动通信有限公司 感知测量方法、装置、设备、介质和程序产品
JP7848148B2 (ja) * 2023-02-24 2026-04-20 株式会社Ｎｔｔドコモ 基地局測位装置
JP7851991B2 (ja) * 2024-06-26 2026-04-27 ソフトバンク株式会社 測位装置、測位プログラム、および測位方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9857476B2 (en) * 2006-04-28 2018-01-02 Telecommuncation Systems, Inc. GNSS long-code acquisition, ambiguity resolution, and signal validation
JP5396305B2 (ja) 2010-02-23 2014-01-22 日本電信電話株式会社 位置算出装置、方法及びプログラム
US8812030B2 (en) 2010-07-22 2014-08-19 Qualcomm Incorporated Sensing relative position from a wireless transceiver
CN103546963B (zh) 2012-07-10 2016-09-14 电信科学技术研究院 一种确定定位信息的方法和设备
US9310461B2 (en) 2013-03-15 2016-04-12 Cisco Technology, Inc. Determining access point orientation based on neighbor access point locations
EP3215864B1 (en) 2014-11-07 2020-07-29 Sony Corporation Determining the geographic location of a portable electronic device with a synthetic antenna array
US10324162B2 (en) 2015-02-18 2019-06-18 Sony Corporation Determining the geographic location of a mobile communications device using a positioning reference signal
WO2017164925A1 (en) 2016-03-24 2017-09-28 Intel Corporation Method of positioning for 5g systems
US10021667B2 (en) 2016-06-23 2018-07-10 Qualcomm Incorporated Positioning in beamformed communications
JP6813386B2 (ja) 2017-02-21 2021-01-13 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 基地局制御装置及び位置推定方法
WO2018164173A1 (ja) 2017-03-10 2018-09-13 シャープ株式会社 端末装置、ロケーションサーバ、位置測定方法、およびプログラム
US10756831B2 (en) * 2017-07-31 2020-08-25 Massachusetts Institute Of Technology Characterizing transmit channels from an antenna array to a transceiver
US10080098B1 (en) 2017-10-25 2018-09-18 Qualcomm Incorporated Systems and methods for uplink high efficiency transport of location information in a wireless network
US10567905B2 (en) 2017-11-27 2020-02-18 Qualcomm Incorporated Systems and methods for locating a mobile device using angle of arrival and inertial sensor measurements
CN111903069B (zh) 2018-04-05 2022-08-19 三星电子株式会社 用于用户设备进行的基于传感器的波束管理的方法和系统

Also Published As

Publication number Publication date
TWI879786B (zh) 2025-04-11
CN114223221A (zh) 2022-03-22
US20210048500A1 (en) 2021-02-18
JP2022544468A (ja) 2022-10-19
BR112022001955A2 (pt) 2022-05-03
KR20220045959A (ko) 2022-04-13
WO2021030444A1 (en) 2021-02-18
EP4014060A1 (en) 2022-06-22
JP7530960B2 (ja) 2024-08-08
US12196868B2 (en) 2025-01-14
CN114223221B (zh) 2024-09-13
TW202116091A (zh) 2021-04-16

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