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1. WO2022008064 - MULTISTATIC RADAR SYSTEM USING WIRELESS COMMUNICATION DEVICES

Publication Number WO/2022/008064
Publication Date 13.01.2022
International Application No. PCT/EP2020/069493
International Filing Date 10.07.2020
IPC
G01S 7/00 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
G01S 7/02 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
7Details of systems according to groups G01S13/, G01S15/, G01S17/127
02of systems according to group G01S13/58
G01S 13/00 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
G01S 13/42 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
06Systems determining position data of a target
42Simultaneous measurement of distance and other coordinates
G01S 13/87 2006.1
GPHYSICS
01MEASURING; TESTING
SRADIO 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
13Systems 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
87Combinations of radar systems, e.g. primary radar and secondary radar
Applicants
  • TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE]/[SE]
Inventors
  • SJÖLAND, Henrik
  • ZOU, Gang
  • DAHLGREN, Fredrik
  • KALANTARI, Ashkan
  • OLSSON, Magnus
Agents
  • ERICSSON
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) MULTISTATIC RADAR SYSTEM USING WIRELESS COMMUNICATION DEVICES
(FR) SYSTÈME RADAR MULTISTATIQUE UTILISANT DES DISPOSITIFS DE COMMUNICATION SANS FIL
Abstract
(EN) A node (107) in a wireless communication system coordinates multistatic radar measurements, wherein the node (107) controls a plurality of wireless communication devices. Coordination involves obtaining (601) an indication that a first sensing area (111) located within a geographic area that is served by the node (107) is to be sensed by a first radar signal. A first multistatic radar group of wireless communication devices selected from a participating group of the plurality of wireless communication devices and the node (107) is formed (543, 603), wherein the first multistatic radar group comprises at least one device for transmitting the first radar signal and at least two devices for receiving one or more reflections of the transmitted first radar signal. The first multistatic radar group is controlled (605) to introduce the first radar signal into the first sensing area (111) and to receive the one or more reflections of the introduced first radar signal. The sensed reflections obtained by wireless communication devices in the first multistatic radar group are caused (607) to be combined to obtain geographical information about the first sensing area (111). Other aspects involve a wireless communication device interacting with a network node (107) to receive allocated time and radio frequency resources to be used for a radar function.
(FR) Un nœud (107) d'un système de communication sans fil coordonne des mesures radar multistatiques, le nœud (107) commandant une pluralité de dispositifs de communication sans fil. La coordination consiste à obtenir (601) une indication du fait qu'une première zone de détection (111) située dans une zone géographique qui est desservie par le nœud (107) doit être détectée par un premier signal radar. Un premier groupe radar multistatique de dispositifs de communication sans fil sélectionnés à partir d'un groupe participant des dispositifs de la pluralité de dispositifs de communication sans fil et du nœud (107) est formé (543, 603), le premier groupe radar multistatique comprenant au moins un dispositif destiné à émettre le premier signal radar et au moins deux dispositifs destinés à recevoir une ou plusieurs réflexions du premier signal radar émis. Le premier groupe radar multistatique est commandé (605) pour introduire le premier signal radar dans la première zone de détection (111) et pour recevoir la ou les réflexions du premier signal radar introduit. Les réflexions détectées obtenues par des dispositifs de communication sans fil du premier groupe radar multistatique sont amenées (607) à être combinées pour obtenir des informations géographiques concernant la première zone de détection (111). D'autres aspects font appel à un dispositif de communication sans fil interagissant avec un nœud de réseau (107) pour recevoir des ressources temporelles et de fréquence radio attribuées à utiliser pour une fonction radar.
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