WO2023025111A1 - Procédé et appareil de télémétrie - Google Patents

Procédé et appareil de télémétrie Download PDF

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Publication number
WO2023025111A1
WO2023025111A1 PCT/CN2022/114053 CN2022114053W WO2023025111A1 WO 2023025111 A1 WO2023025111 A1 WO 2023025111A1 CN 2022114053 W CN2022114053 W CN 2022114053W WO 2023025111 A1 WO2023025111 A1 WO 2023025111A1
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WO
WIPO (PCT)
Prior art keywords
zcz
length
sequence
sequences
ranging
Prior art date
Application number
PCT/CN2022/114053
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English (en)
Chinese (zh)
Inventor
段瑞洋
李雪茹
王碧钗
Original Assignee
华为技术有限公司
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
Priority claimed from CN202111194381.8A external-priority patent/CN115932725A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023025111A1 publication Critical patent/WO2023025111A1/fr

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    • 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

Definitions

  • the ZCZ sequence with a length of 32 and a ZCZ interval length of 17 includes at least one sequence in Table 6 in the detailed description of the specification.
  • the cross-correlation peaks of different sequences are all above 0.25, and the cross-correlation peaks of sequence 1 and sequence 5 even reach 0.6875. Therefore, if multiple Ipatov sequences are used for ranging at the same time, false peaks may be generated when searching for autocorrelation peaks, resulting in inaccurate calculation of time of arrival TOA and large ranging errors.
  • the current standard stipulates that only sequence pairs with good periodic cross-correlation (such as sequences 1 and 2, sequences 3 and 4, sequences 5 and 6, and sequences 7 and 8) can be used in the same channel, and other sequences can be used in the same channel. used in different channels. Therefore, the Ipatov sequence in the current standard can only support synchronous ranging of two Responders in the same channel at most, which is far from meeting the one-to-many ranging requirements in many application scenarios (such as smart car key positioning, smart home positioning).
  • serial numbers (such as 1, 2, 3, ... 16) of the ZCZ sequences in the multiple tables involved in this application are only for convenience of description, and do not imply sequence.
  • Table 3 Eight ZCZ sequences with a length of 32 and a ZCZ interval length of 5.
  • Table 4 16 ZCZ sequences with a length of 128 and a ZCZ interval length of 9. These 16 ZCZ sequences do not have perfect autocorrelation properties in the full period (ie [-127, 0] and [0, 127]), but in the ZCZ interval (ie [-4, 4]), 8 ZCZ Sequences have perfect autocorrelation and cross-correlation properties.
  • the first device may send the first message to the second device in a multicast, unicast or broadcast manner.
  • the maximum ranging range supported by the sequence is determined based on the maximum ranging delay difference supported by the sequence.
  • Step 403 The Initiator assigns a corresponding ZCZ sequence to each Responder.
  • the processing module 510 may perform actions other than the sending action and the receiving action among the actions performed by the first device in the above method embodiments.
  • the receiving module 520a and the sending module 520b in FIG. 5 may be implemented by the transceiver 620 .
  • the transceiver 620 is divided into a receiver and a transmitter, the receiver performs the function of the receiving module, and the transmitter performs the function of the sending module.

Abstract

L'invention concerne également un procédé et un appareil de télémétrie, qui sont utilisés pour réaliser une télémétrie précise. Le procédé comprend les étapes suivantes : premièrement, un premier appareil reçoit un premier signal de réponse de télémétrie provenant d'un second appareil, le premier signal de réponse de télémétrie étant généré sur la base d'une première séquence de zone de corrélation zéro (ZCZ), et la première séquence ZCZ est une séquence parmi une pluralité de séquences ZCZ pré-configurées ; et ensuite, le premier appareil détermine la distance entre le premier appareil et le second appareil sur la base du premier signal de réponse de télémétrie. Un signal de réponse de télémétrie est généré au moyen d'une séquence ZCZ, de telle sorte qu'une télémétrie précise peut être réalisée.
PCT/CN2022/114053 2021-08-26 2022-08-22 Procédé et appareil de télémétrie WO2023025111A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202110987224.6 2021-08-26
CN202110987224 2021-08-26
CN202111194381.8 2021-10-13
CN202111194381.8A CN115932725A (zh) 2021-08-26 2021-10-13 一种测距方法及装置

Publications (1)

Publication Number Publication Date
WO2023025111A1 true WO2023025111A1 (fr) 2023-03-02

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PCT/CN2022/114053 WO2023025111A1 (fr) 2021-08-26 2022-08-22 Procédé et appareil de télémétrie

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WO (1) WO2023025111A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101702827A (zh) * 2009-11-19 2010-05-05 清华大学 Toa定位的估计方法及基于该估计方法的精确定位方法
CN102273101A (zh) * 2009-01-05 2011-12-07 Lg电子株式会社 在无线通信系统中发送测距信息的方法及其终端
US20160329981A1 (en) * 2014-02-18 2016-11-10 Lg Electronics Inc. Method for transreceiving signals using user-specific flexible tdd technology in wireless communication system and device for same
CN109557527A (zh) * 2018-11-26 2019-04-02 中国石油大学(华东) 一种基于混合相关接收及误差迭代的车辆测距方法
CN111796260A (zh) * 2019-08-12 2020-10-20 维沃移动通信有限公司 一种测距方法及设备
CN111989592A (zh) * 2020-07-16 2020-11-24 北京小米移动软件有限公司 同步系统中的测距方法、装置、设备及可读存储介质

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102273101A (zh) * 2009-01-05 2011-12-07 Lg电子株式会社 在无线通信系统中发送测距信息的方法及其终端
CN101702827A (zh) * 2009-11-19 2010-05-05 清华大学 Toa定位的估计方法及基于该估计方法的精确定位方法
US20160329981A1 (en) * 2014-02-18 2016-11-10 Lg Electronics Inc. Method for transreceiving signals using user-specific flexible tdd technology in wireless communication system and device for same
CN109557527A (zh) * 2018-11-26 2019-04-02 中国石油大学(华东) 一种基于混合相关接收及误差迭代的车辆测距方法
CN111796260A (zh) * 2019-08-12 2020-10-20 维沃移动通信有限公司 一种测距方法及设备
CN111989592A (zh) * 2020-07-16 2020-11-24 北京小米移动软件有限公司 同步系统中的测距方法、装置、设备及可读存储介质

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