Method for realizing high-precision tracking measurement by using measurement interval

A technology of measurement interval and tracking measurement, applied in the field of communication, can solve the problem of inability to perform high-precision measurement, and achieve the effect of increasing deployment costs, improving system capabilities, and high measurement accuracy

Pending Publication Date: 2021-10-22
成都天奥集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention aims at the deficiencies in the background technology, and will solve the problem that high-precision measurement cannot be performed under non-terrestrial mobile communication systems such as satellite Internet systems

Method used

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  • Method for realizing high-precision tracking measurement by using measurement interval
  • Method for realizing high-precision tracking measurement by using measurement interval
  • Method for realizing high-precision tracking measurement by using measurement interval

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Embodiment 1

[0039] The scenario involved in this embodiment is an application scenario in which a ground base station communicates with an aircraft terminal, and the ground base station performs distance measurement on the aircraft terminal. That is, in this embodiment, the first node is a ground base station, and the second node is an aircraft terminal. Among them, the aircraft terminal may be a satellite, a drone, and so on.

[0040] In this embodiment, wireless communication is performed between the first node and the second node based on a time division duplex (TDD) mode. In this communication system, each node sends and receives signals at different times, that is, the receiving and sending of signals are separated by time. When communicating between the first node and the second node, the wireless signal of the air interface follows a specific frame structure, such as the frame structure of LTE adopted in 4G (including uplink and downlink configuration, special subframe configurati...

Embodiment 2

[0070] The scenario involved in this embodiment is an application scenario in which a ground base station communicates with an aircraft terminal, and the ground base station performs distance measurement on the aircraft terminal. That is, in this embodiment, the first node is a ground base station, and the second node is an aircraft terminal. Among them, the aircraft terminal may be a satellite, a drone, and so on.

[0071] In this embodiment, the wireless communication between the first node and the second node is based on the frequency division duplex (FDD) mode, that is, in this communication system, each node transmits and receives signals in two symmetrical It is carried out on frequency, that is, the reception and transmission of signals are separated by frequency bands. In FDD mode, not only half-duplex FDD technology is supported, but also full-duplex FDD technology is supported. Half-duplex means that the data transmission in the uplink and downlink directions can b...

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Abstract

The invention discloses a method for realizing high-precision tracking measurement by using a measurement interval, and belongs to the field of communication. According to the invention, a measurement interval specially used for implementing high-precision measurement on a terminal is configured in the system; wherein for a time division duplex system, the measurement interval comprises an uplink measurement interval and a downlink measurement interval, and measurement such as high-precision distance measurement and speed measurement of the terminal can be realized while a wireless communication process is realized between the base station and the terminal. Herein, communication and measurement are realized by using a set of system and the same air interface resource, fusion of a mobile communication technology and a measurement and control technology is realized, high-speed, large-capacity and low-delay communication can be realized based on the 5G air interface technology by using the same set of system, and high-precision measurement with the purpose of tracking and measuring the orbit of an aircraft can be realized at the same time, comprising distange measurement and speed measurement. According to the method, the system capability is improved, the problem that high-precision distance measurement and speed measurement cannot be performed on the aircraft when non-ground mobile communication systems such as a satellite internet system perform communication by using OFDM waveforms is solved, meanwhile, the system is simplified through a unified air interface, and the system construction and management cost is reduced.

Description

technical field [0001] The invention belongs to the communication field, in particular to a method for realizing high-precision measurement in a non-terrestrial mobile communication system based on OFDM air interface waveforms. Background technique [0002] In the mobile communication system, 4G technology is currently the most widely used land mobile communication technology, and the commercial use of 5G has been rapidly popularized in recent years. At the same time, these mobile communication technologies have also begun to integrate with satellite communication technologies, and ground-based Mobile communication air interface technology realizes non-terrestrial mobile communication communication systems, such as low-orbit satellite Internet systems. In 4G and 5G terrestrial mobile communication systems, the air interface adopts a communication system based on OFDM waveforms. In order to locate the terminal, the method of TOA estimation of the reference signal is usually u...

Claims

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Application Information

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IPC IPC(8): H04W24/02H04W24/08H04W24/10
CPCH04W24/02H04W24/08H04W24/10Y02D30/70
Inventor 叶枫汤辉李典
Owner 成都天奥集团有限公司
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