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WO2025152002A1 - Procédé de détermination de paramètre de cible de détection, et appareil - Google Patents

Procédé de détermination de paramètre de cible de détection, et appareil

Info

Publication number
WO2025152002A1
WO2025152002A1 PCT/CN2024/072401 CN2024072401W WO2025152002A1 WO 2025152002 A1 WO2025152002 A1 WO 2025152002A1 CN 2024072401 W CN2024072401 W CN 2024072401W WO 2025152002 A1 WO2025152002 A1 WO 2025152002A1
Authority
WO
WIPO (PCT)
Prior art keywords
target
multipath component
environmental
perception
sensing
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2024/072401
Other languages
English (en)
Chinese (zh)
Inventor
赵群
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co Ltd
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 Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to PCT/CN2024/072401 priority Critical patent/WO2025152002A1/fr
Publication of WO2025152002A1 publication Critical patent/WO2025152002A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the present disclosure relates to the field of communication technology, and in particular to a method, device, equipment and storage medium for determining perception target parameters.
  • a sensing target can be sensed to determine the location and other parameters of the sensing target.
  • the wireless signal reflected by the sensing target can be directly measured to obtain the multipath component of the sensing target.
  • the location and other parameters of the sensing target can be determined.
  • a method for determining a perception target parameter is proposed, which is applied to a first receiving terminal.
  • the method includes:
  • the parameters of the perceived target are determined according to the change information of the multipath components.
  • a method for determining a perception target parameter is proposed, which is applied to a perception processing device.
  • the method includes:
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • FIG2 is a schematic diagram of an example of sensing target impact environment provided by an embodiment of the present disclosure.
  • FIG3A is a schematic flow chart of a method for determining a perception target parameter provided by yet another embodiment of the present disclosure
  • FIG4A is a schematic diagram showing an example of an auxiliary perception operation of an environmental target change provided by an embodiment of the present disclosure
  • FIG4C is a schematic diagram showing an example of an auxiliary perception operation of an environmental target change provided by an embodiment of the present disclosure
  • FIG4D is a schematic diagram of an example of an auxiliary perception operation of an environmental target change provided by an embodiment of the present disclosure
  • FIG4E is a schematic diagram of an example of an auxiliary perception operation of an environmental target change provided by an embodiment of the present disclosure
  • FIG5A is a schematic diagram of a flow chart of a method for determining a perception target parameter provided by yet another embodiment of the present disclosure
  • FIG6A is a flow chart of a method for determining a perception target parameter provided by yet another embodiment of the present disclosure
  • FIG7B is a schematic diagram of the structure of a perception processing device provided by an embodiment of the present disclosure.
  • FIG8B is a schematic diagram of the structure of a chip provided by an embodiment of the present disclosure.
  • the present disclosure proposes a method, device, equipment and storage medium for determining perception target parameters to provide a parameter determination mechanism for a perception target, thereby reducing the situation in which the perception performance is inaccurate due to the change of multipath components of environmental targets caused by the perception target, and improving the perception performance of the perception target.
  • a method for determining a perception target parameter is proposed, which is applied to a first receiving terminal.
  • the method includes:
  • the multipath components include the first multipath components corresponding to the perceived target reflection of the current wireless channel and other changed second multipath components;
  • the parameters of the perceived target are determined according to the change information of the multipath components.
  • a parameter determination mechanism for a perceived target can be provided, which can determine the parameters of the perceived target by combining the first multipath component reflected by the perceived target and other changing second multipath components, thereby reducing the situation in which the parameters of the perceived target are determined based only on the first multipath component reflected by the perceived target, resulting in inaccurate parameter determination, and reducing the situation in which the perceived target causes changes in the multipath components of the environmental target, resulting in inaccurate perception performance, thereby improving the perception performance of the perceived target.
  • the reference wireless channel includes at least one of the following:
  • the wireless channel includes at least one of a wireless signal reflected by an environmental target in an area where the first receiving terminal is located and a wireless signal transmitted by the first transmitting terminal;
  • the wireless channel includes at least one of a wireless signal reflected by an environmental target in an area where the first receiving terminal is located, a received wireless signal transmitted by the first transmitting terminal, and a wireless signal reflected before the perceived target moves;
  • the first receiving terminal receives a wireless channel, wherein the wireless channel includes at least one of a wireless signal reflected by an environmental target in an area where the first receiving terminal is located, a received wireless signal transmitted by the first transmitting terminal, and wireless signals reflected by remaining perception targets, and the remaining perception targets are perception targets other than the focus perception target among the multiple perception targets.
  • the absolute strength of a multipath component received by the first receiving terminal is weakened to a first threshold value, it is determined that the multipath component received by the first receiving terminal is a multipath component with a multipath component change;
  • the first threshold value or the second threshold value can improve the accuracy of determining the multipath component with multipath component changes, and can improve the perception performance of the perception target.
  • the method further includes:
  • the measurement information is used to instruct the perception processing device to perform a perception operation on the perception target, and the measurement information includes at least one of the first multipath component, the second multipath component, the first measurement timestamp corresponding to the current wireless channel, and the second measurement timestamp corresponding to the reference wireless channel.
  • the measurement amount of the first multipath component includes at least one of the following:
  • the parameters of the perception target are determined according to the first multipath component, the first position information of the first environmental target, and the information that the perception target is located on a line connecting the first transmitting terminal and the first environmental target.
  • the sensing target blocks the wireless signal between the first transmitting terminal and the first environmental target, the second multipath component of the first environmental target changes, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • the wireless signals of the perception target and the transmitting terminal can be blocked at the first environmental target, and the parameters of the perception target can be determined by combining the change information of the multipath component and the position information of the environmental target.
  • This can reduce the situation where the parameters of the perception target are determined only based on the first multipath component reflected by the perception target, resulting in inaccurate parameter determination, and reduce the situation where the perception target causes the change of the multipath component of the environmental target, resulting in inaccurate perception performance. This can improve the perception performance of the perception target.
  • the wireless signals of the first transmitting terminal and the first receiving terminal can be blocked when the perception target is being perceived, and the change information of the multipath component and the position information of the environmental target can be combined to determine the parameters of the perception target, thereby reducing the situation in which the parameters of the perception target are determined based only on the first multipath component reflected by the perception target, resulting in inaccurate parameter determination, and reducing the situation in which the perception performance is inaccurate due to the change of the multipath component of the environmental target caused by the perception target, thereby improving the perception performance of the perception target.
  • determining the parameter of the perceived target according to the change information of the multipath component includes:
  • determining the parameter of the perceived target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks the wireless signal of the first environmental target, and the difference between the direction angles of the first multipath component and the second multipath component is greater than an angle difference threshold, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • the parameters of the perception target are determined according to the first multipath component, the second multipath component, and information that the perception target is located on a line connecting the first transmitting terminal and the first environmental target.
  • determining the parameter of the perceived target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks wireless signals of the first environmental target and the second environmental target, and determines that the sensing target is located on a line connecting the first transmitting terminal and the second environmental target according to the difference in direction angle between the first multipath component and the second multipath component of the first environmental target being greater than an angle difference threshold;
  • the difference between the direction angle of the first multipath component and the direction angle of the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • determining the parameter of the perceived target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks the wireless signal between the first transmitting terminal and the first environmental target, and the second multipath component corresponding to the first environmental target changes, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • the parameters of the perception target are determined according to the second multipath component corresponding to the first environmental target, the multipath component reflected by the perception target sent by the second receiving terminal, and the information that the perception target is located on the line connecting the first transmitting terminal and the first environmental target.
  • determining the parameter of the perceived target according to the first multipath component and the second multipath component includes:
  • the parameters of the perceived target are determined according to the multipath component of the change of the perceived target and the multipath component reflected by the second transmitting terminal through the perceived target.
  • a method for determining a perception target parameter is proposed, which is applied to a perception processing device.
  • the method includes:
  • the measurement information includes at least one of a first multipath component of a current wireless channel corresponding to a perceived target reflection, other changed second multipath components, a first measurement timestamp corresponding to the current wireless channel, and a second measurement timestamp corresponding to the reference wireless channel;
  • the measurement information is used to perform a sensing operation on the sensing target.
  • the perception processing device when receiving the measurement information sent by the first receiving terminal, can perform a perception operation on the perception target, and when the processing entity of the position and characteristics of the perception target is located in the perception processing device, the perception operation can be performed on the perception target, thereby reducing the situation in which the parameters of the perception target are determined only based on the first multipath component reflected by the perception target, resulting in inaccurate parameter determination, and reducing the situation in which the perception performance is inaccurate due to the change of the multipath component of the environmental target caused by the perception target, thereby improving the perception performance of the perception target.
  • using the measurement information to perform a perception operation on the perception target includes:
  • using the measurement information and the position information of the environmental target to perform a perception operation on the perception target includes:
  • the sensing target blocks the wireless signal of the first environmental target, and the difference between the direction angles of the first multipath component and the second multipath component is greater than an angle difference threshold, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • using the measurement information and the position information of the environmental target to perform a perception operation on the perception target includes:
  • the perception target blocks the wireless signals of the first environmental target and the second environmental target, and the difference between the azimuth angles of the first multipath component and the second multipath component of the first environmental target is greater than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first transmitting terminal and the second environmental target; the difference between the azimuth angles of the first multipath component and the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • the perception target blocks the wireless signals of the first environmental target and the second environmental target, and the difference between the azimuth angles of the first multipath component and the second multipath component of the first environmental target is greater than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first transmitting terminal and the second environmental target; the difference between the azimuth angles of the first multipath component and the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • using the measurement information and the position information of the environmental target to perform a perception operation on the perception target includes:
  • the first environmental target blocks the wireless signals of the sensing target and the transmitting terminal, and the multipath component of the sensing target changes, and it is determined that the sensing target is located on the extension line of the first transmitting terminal and the first environmental target;
  • the sensing target blocks wireless signals of the first transmitting terminal and the first receiving terminal, and determines, according to the first multipath component and the second multipath component, that the sensing target is located on a line connecting the first transmitting terminal and the first receiving terminal;
  • the parameters of the perceived target are determined according to the multipath component reflected by the perceived target sent by the second receiving terminal and the information that the perceived target is located on a line connecting the first transmitting terminal and the first receiving terminal.
  • using the measurement information to perform a perception operation on the perception target includes:
  • a sensing operation is performed on a sensing target according to the first multipath component and the second multipath component.
  • performing a sensing operation on a sensing target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks the wireless signal of the first environmental target, and the difference between the direction angles of the first multipath component and the second multipath component is greater than an angle difference threshold, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • the parameters of the perception target are determined according to the first multipath component, the second multipath component, and information that the perception target is located on a line connecting the first transmitting terminal and the first environmental target.
  • performing a sensing operation on a sensing target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks the wireless signals of the first environmental target and the second environmental target, and the difference between the direction angles of the first multipath component and the second multipath component of the first environmental target is greater than an angle difference threshold, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the second environmental target;
  • the difference between the direction angle of the first multipath component and the direction angle of the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • performing a sensing operation on a sensing target according to the first multipath component and the second multipath component includes:
  • the sensing target blocks wireless signals of the first environmental target and the second environmental target, and determines that the sensing target is located on a line connecting the first transmitting terminal and the second environmental target according to the difference in direction angle between the first multipath component and the second multipath component of the first environmental target being greater than an angle difference threshold;
  • the difference between the direction angle of the first multipath component and the direction angle of the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • the reference wireless channel includes at least one of the following:
  • terms such as “greater than”, “greater than or equal to”, “not less than”, “more than”, “more than or equal to”, “not less than”, “higher than”, “higher than or equal to”, “not lower than”, and “above” can be replaced with each other, and terms such as “less than”, “less than or equal to”, “not greater than”, “less than”, “less than or equal to”, “no more than”, “lower than”, “lower than or equal to”, “not higher than”, and “below” can be replaced with each other.
  • devices and equipment may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, etc.
  • network can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.
  • terminal or “terminal device” may be referred to as "user equipment (UE)", “user terminal (user terminal)”, “mobile station (MS)”, “mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • acquisition of data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of the embodiments of the present disclosure may be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns may also be implemented as an independent embodiment.
  • FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.
  • a communication system 100 includes a terminal 101 and a network device 102 .
  • the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited to these.
  • a mobile phone a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device
  • the network device 102 may include, for example, at least one of an access network device and a core network device.
  • the access network device is, for example, a node or device that accesses a terminal to a wireless network.
  • the access network device may include an evolved Node B (eNB), a next generation evolved Node B (ng-eNB), a next generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, and a radio network controller (radio network controller) in a 5G communication system.
  • eNB evolved Node B
  • ng-eNB next generation evolved Node B
  • gNB next generation Node B
  • NB node B
  • HNB home node B
  • HeNB home evolved node B
  • wireless backhaul device a wireless backhaul device
  • radio network controller radio network controller
  • the invention relates to a mobile troller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a network device in a sixth generation mobile communication standard (6G) communication system, an open network device (Open RAN), a cloud network device (Cloud RAN), a network device in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.
  • RNC mobile troller
  • BSC base station controller
  • BTS base transceiver station
  • BBU base band unit
  • 6G sixth generation mobile communication standard
  • Open RAN open network device
  • Cloud RAN cloud network device
  • Wi-Fi Wi-Fi
  • the technical solution of the present disclosure may be applicable to the Open RAN architecture.
  • the interfaces between or within the access network devices involved in the embodiments of the present disclosure may become internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces may be implemented through software or programs.
  • the access network device may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit).
  • the CU-DU structure may be used to split the protocol layer of the access network device, with some functions of the protocol layer being centrally controlled by the CU, and the remaining part or all of the functions of the protocol layer being distributed in the DU, and the DU being centrally controlled by the CU, but not limited to this.
  • the core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of the Evolved Packet Core (EPC), the 5G Core Network (5GCN), and the Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the core network device may be a device including a first network element, a second network element, etc., or may be a plurality of devices or a group of devices including all or part of the first network element, the second network element, etc.
  • the network element may be virtual or physical.
  • the core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the measurement quantity of the first multipath component includes a time delay.
  • the measurement quantity of the first multipath component includes an angle.
  • the measurement quantity of the first multipath component includes intensity
  • the measurement quantity of the second multipath component includes the Doppler frequency.
  • the parameter determination subject of the perception target of the embodiment of the present disclosure may be, for example, a first receiving terminal, which may, for example, receive measurement information sent by other receiving terminals, and the measurement information may, for example, include at least one of a first multipath component, a second multipath component, a first measurement timestamp corresponding to a current wireless channel, and a second measurement timestamp corresponding to a reference wireless channel.
  • the absolute strength of a multipath component received by the first receiving terminal is weakened to a first threshold value, and it is determined that the multipath component received by the first receiving terminal is a multipath component with a multipath component change;
  • the first threshold value does not specifically refer to a fixed threshold value.
  • the first in the first threshold value is used to distinguish from the second threshold value.
  • the second in the second threshold value is used to distinguish from the first threshold value.
  • the first threshold value and the second threshold value may be, for example, predefined, the first threshold value and the second threshold value may be, for example, semi-statically configured, and the first threshold value and the second threshold value may be, for example, dynamically indicated.
  • the present disclosure embodiment does not limit this.
  • the first threshold value may be, for example, threshold A
  • the second threshold value may be, for example, threshold B.
  • the first receiving terminal can determine that the multipath component is a multipath component affected by the appearance or movement of the perceived target.
  • the first receiving terminal can determine that the multipath component is a multipath component affected by the appearance or movement of the perceived target.
  • the method further includes:
  • the absolute strength of a multipath component received by the first receiving terminal is weakened to a first threshold value, and it is determined that the multipath component received by the first receiving terminal is a multipath component with a multipath component change.
  • the method further includes:
  • any one of the multiple multipath components received by the first receiving terminal and the strength of the strongest multipath component among the multiple multipath components is greater than a second threshold, it is determined that any one of the multiple multipath components is a multipath component with a multipath component change.
  • determining the change information of the multipath component and the parameter of the perceived target according to the first multipath component and the second multipath component includes:
  • the position information of the environmental target in the reference wireless channel is determined, and the parameter of the perceived target is determined according to the first multipath component and the second multipath component.
  • the location information of the environmental target in the reference wireless channel may be determined, for example, and the first receiving terminal may determine the correspondence between the multipath component of the reference wireless channel and the environmental target.
  • the first receiving terminal may determine the environmental target and its location in the area to which the first receiving terminal belongs, and establish the correspondence between the multipath component of the reference wireless channel and the environmental target.
  • the first receiving terminal can determine the positional relationship between the perceived target and the transmitter, the environmental target, and/or the first receiving terminal based on the first multipath component and the second multipath component. For example:
  • the original multipath component and the new multipath component of the perceived target can be used for joint perception.
  • FIG4A is an example schematic diagram of an auxiliary perception operation of a change of an environmental target provided by an embodiment of the present disclosure.
  • the first receiving terminal may be, for example, RX.
  • the first transmitting terminal may be, for example, TX. Since the perception target reflects the wireless signal to the first receiving terminal, the first receiving terminal may measure the multipath component reflected by the perception target, and the multipath component reflected by the perception target has different time delays, direction angles and/or Doppler frequencies, for example, the time delays, direction angles and/or Doppler frequencies corresponding to the multipath components of the wireless signal reflected by the environmental target in the reference wireless channel may be different.
  • the perception target T blocks the wireless signal of the environmental target E, and the first receiving terminal may determine that the environmental target E disappears or the signal strength decreases by more than the first threshold. Therefore, since the direction angle of the new multipath component introduced by the perception target is different from the direction angle of the component of the environmental target E, for example, the difference between the direction angle of the new multipath component introduced by the perception target and the direction angle of the multipath component of the environmental target E is greater than the angle difference threshold, it can be determined that the perception target is located on the line connecting TX and the environmental target E, which can be used to assist the perception operation for the perception target T.
  • the first receiving terminal can determine parameters such as the location of the sensing target T.
  • determining the parameters of the perceived target according to the change information of the multipath component and the position information of the environmental target includes:
  • the perception target blocks the wireless signals of the first environmental target and the second environmental target, and the difference between the azimuth angle of the first multipath component and the second multipath component of the first environmental target is greater than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first transmitting terminal and the second environmental target; the difference between the azimuth angle of the first multipath component and the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • the perception target blocks the wireless signals of the first environmental target and the second environmental target, and the difference between the azimuth angle of the first multipath component and the second multipath component of the first environmental target is greater than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first transmitting terminal and the second environmental target; the difference between the azimuth angle of the first multipath component and the second multipath component of the second environmental target is less than the angle difference threshold, and it is determined that the perception target is located on the line connecting the first receiving terminal and the first environmental target;
  • FIG4B is an example schematic diagram of an auxiliary perception operation of a change of an environmental target provided by an embodiment of the present disclosure.
  • the first receiving terminal may be, for example, RX.
  • the first transmitting terminal may be, for example, TX. Since the perception target reflects the wireless signal to the first receiving terminal, the first receiving terminal may measure the multipath component reflected by the perception target, and the multipath component reflected by the perception target has different delays, azimuths and/or Doppler frequencies, for example, the delays, azimuths and/or Doppler frequencies corresponding to the reference wireless channel may be different.
  • the perception target T blocks the wireless signals of the environmental targets E1 and E2, and the first receiving terminal may determine that the environmental targets E1 and E2 disappear or the signal strength decreases by more than the first threshold. Therefore, since the azimuth angle of the new multipath component introduced by the perception target is different from the azimuth angle of the multipath component of the environmental target E2, for example, the difference between the azimuth angle of the new multipath component introduced by the perception target and the azimuth angle of the multipath component of the environmental target E2 is greater than the angle difference threshold, it can be determined that the perception target is located on the line connecting TX and the environmental target E2.
  • the parameters of the perceived target are determined according to the multipath component reflected by the perceived target and the information sent by the second receiving terminal that the perceived target is located on the line connecting the first transmitting terminal and the first receiving terminal.
  • determining a parameter of a perceived target according to change information of a multipath component includes:
  • a parameter of a perceived target is determined according to the first multipath component and the second multipath component.
  • the location information of the environmental target in the reference wireless channel may be, for example, undetermined, that is, the real location of the environmental target is unknown.
  • the first receiving terminal may jointly process the perception target and the environmental target to improve the accuracy of determining the parameters of the perception target.
  • the first receiving terminal can detect the change information of the multipath component of the wireless signal it receives.
  • the change information of the multipath component reflects the interaction between the perception target and the related environmental targets.
  • the first receiving terminal can measure the multipath component of the current wireless channel and compare it with the multipath component measured based on the reference wireless channel, so as to determine the changed multipath component.
  • the original multipath component and the new multipath component of the perceived target can be used for joint perception.
  • the position relationship between the sensing target and the transmitter, the environmental target and/or the first receiving terminal can be used together with the multipath component of the wireless signal directly reflected by the sensing target to jointly determine the position and other parameters of the sensing target.
  • the other parameters may include, for example, speed.
  • determining a parameter of a perceived target according to a first multipath component and a second multipath component includes:
  • the sensing target blocks the wireless signal of the first environmental target, and the difference between the direction angles of the first multipath component and the second multipath component is greater than the angle difference threshold, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • Parameters of the perceived target are determined according to the first multipath component, the second multipath component, and information that the perceived target is located on a line connecting the first transmitting terminal and the first environmental target.
  • the multipath component of the environmental target E changes, and the sensing target T is located on the line connecting the transmitter and the environmental target E, which can be used to assist the sensing operation of the sensing target T.
  • the sensing target T is located on the line connecting the transmitter and the environmental target E, which can be used to assist the sensing operation of the sensing target T.
  • parameters such as the position of the sensing target T can be determined.
  • determining a parameter of a perceived target according to a first multipath component and a second multipath component includes:
  • the sensing target blocks the wireless signal between the first transmitting terminal and the first environmental target, the second multipath component corresponding to the first environmental target changes, and it is determined that the sensing target is located on the line connecting the first transmitting terminal and the first environmental target;
  • Step S6101 receiving measurement information sent by a first receiving terminal, wherein the measurement information includes at least one of a first multipath component of a current wireless channel corresponding to a perceived target reflection, other changed second multipath components, a first measurement timestamp corresponding to the current wireless channel, and a second measurement timestamp corresponding to a reference wireless channel;
  • an environmental target may block or weaken the wireless signal from the transmitter to the sensing target, causing the sensing target to be invisible at the receiver or the signal to become weak.
  • the wireless signal from the transmitter TX to the sensing target T2 in Figure 2 is blocked by the environmental target E3.
  • the wireless signal reflected by the sensing target to the receiver changes. For example, its multipath component at the previous moment disappears or weakens, and a new multipath component is generated. For example, when the sensing target T1 moves to the position of T1', the original reflected multipath component disappears, and a new reflected multipath component is generated.
  • the impact of the appearance and movement of the perception target is generally different for different pairs of transmitters and receivers.
  • the above-mentioned impact on the environmental target and/or the received signal of the transmitter at the receiver caused by the appearance and movement of the perception target can be used to assist the perception operation of the perception target. It is not general.
  • the embodiment of the present disclosure describes the perception operation of a pair of transmitters and receivers on the perception target, and the measurement and reporting are applicable to the situation where multiple pairs of transmitters and receivers work together.
  • the receiver may perform multiple measurements on the area.
  • the receiver first obtains a reference wireless channel for the area.
  • the reference wireless channel may be one of the following wireless channels:
  • the wireless channel received by the receiver before a sensing target appears, the wireless channel including wireless signals reflected by environmental targets in the area and/or wireless signals directly received by the receiver from a transmitter;
  • the wireless channel received by the receiver before the sensing target moves includes the wireless signal reflected by the environmental target in the area, the wireless signal directly received from the transmitter, and/or the wireless signal reflected by the sensing target before the movement.
  • the sensing target and the environmental target in the area may affect each other;
  • sensing targets when there are multiple sensing targets, when it is necessary to focus on one or more sensing targets, other sensing targets can actually be processed as environmental targets, and thus included in the reference wireless channel.
  • Category 1 Multipath components of the current wireless channel directly received by the receiver that are reflected from the sensing target.
  • the multipath components are from the transmitter TX1 to the receiver RX via the sensing target T1.
  • Category 2 Other changing multipath components other than the multipath components reflected from the perceived target of the current wireless channel directly received by the receiver.
  • the changing multipath components of the environmental targets and/or transmitters at the receiver caused by the appearance and movement of the perceived target.
  • the receiver may consider the multipath component to be an affected multipath component.
  • the receiver may consider the multipath component to be an affected multipath component.
  • the threshold A or B may be predefined, semi-statically configured, or dynamically indicated.
  • Each of the above multipath components may include one or more of the above multipath components.
  • a receiver may report at least part of the following parameters to the device where the sensing processing entity is located:
  • Timestamp representing the time when the receiver measures the above two multipath components
  • the receiver may perform multiple measurements on the area. Assuming that the real position of the environmental target is known, the sensing and processing entity may determine the correspondence between the multipath component of the reference wireless channel and the environmental target. Alternatively, based on the sensing operation of the reference wireless channel, the sensing and processing entity may determine the environmental target and its position in the area, and establish the correspondence between the multipath component of the reference wireless channel and the environmental target.
  • the receiver Based on the current wireless channel and the reference wireless channel, when the perceived target appears or moves, the receiver will detect the change of the multipath components of the wireless signal it receives. These changed multipath components are associated with the perceived target and/or environmental target. For example, the receiver can measure the multipath components of the current wireless channel and compare them with the multipath components measured based on the reference wireless channel, so as to determine the changed multipath components and their associated environmental targets, and the new multipath components are directly associated with the perceived target.
  • the above-mentioned location information of the environmental target, the positional relationship between the perception target and the transmitter, the environmental target and/or the receiver can be jointly determined with the multipath component measured by the wireless signal directly reflected from the perception target to determine the location and other parameters of the perception target, and other parameters may include, for example, speed.
  • the original multipath component and the new multipath component of the perceived target can be used for joint perception.
  • the communication device 8100 further includes one or more transceivers 8103.
  • the transceiver 8103 performs at least one of the communication steps such as sending and/or receiving in the above method (for example, step S3101, step S3201, step S3203, step S3204, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S3102, step S3103, step S3202, step S3205, but not limited thereto).
  • the chip 8200 further includes one or more interface circuits 8202.
  • the interface circuit 8202 is connected to the memory 8203.
  • the interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and the interface circuit 8202 can be used to send signals to the memory 8203 or other devices.
  • the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.
  • interface circuit interface circuit
  • transceiver pin transceiver
  • the chip 8200 further includes one or more memories 8203 for storing instructions.
  • the memory 8203 may be outside the chip 8200.
  • the present disclosure also proposes a storage medium, on which instructions are stored, and when the instructions are executed on the communication device 8100, the communication device 8100 executes any of the above methods.
  • the storage medium is an electronic storage medium.
  • the storage medium is a computer-readable storage medium, but is not limited to this, and it can also be a storage medium readable by other devices.
  • the storage medium can be a non-transitory storage medium, but is not limited to this, and it can also be a temporary storage medium.
  • the present disclosure also proposes a program product, which, when executed by the communication device 8100, enables the communication device 8100 to execute any of the above methods.
  • the program product is a computer program product.
  • the present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to execute any one of the above methods.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

La présente invention concerne un procédé de détermination d'un paramètre d'une cible de détection, un appareil, un dispositif et un support de stockage. Le procédé comprend les étapes consistant à : déterminer des informations de variation de composantes à trajets multiples sur la base d'un canal sans fil actuel et d'un canal sans fil de référence, les composantes à trajets multiples comprenant une première composante à trajets multiples réfléchie par une cible de détection correspondante du canal sans fil actuel et d'autres secondes composantes à trajets multiples variables ; et déterminer un paramètre de la cible de détection sur la base des informations de variation des composantes à trajets multiples. La présente invention peut fournir un mécanisme de détermination de paramètre pour la cible de détection, ce qui permet de réduire les imprécisions dans les performances de détection provoquées par une variation de composante à trajets multiples d'une cible d'environnement due à la cible de détection et d'améliorer ainsi les performances de détection pour la cible de détection.
PCT/CN2024/072401 2024-01-15 2024-01-15 Procédé de détermination de paramètre de cible de détection, et appareil Pending WO2025152002A1 (fr)

Priority Applications (1)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105933867A (zh) * 2016-06-23 2016-09-07 长沙学院 基于信道状态信息的被动式两锚点实时室内定位方法
US20180227714A1 (en) * 2017-02-06 2018-08-09 Qualcomm Incorporated Method and apparatus for motion detection systems
CN116347326A (zh) * 2021-12-24 2023-06-27 维沃移动通信有限公司 目标定位感知方法、装置、通信设备和存储介质
CN117255403A (zh) * 2022-06-10 2023-12-19 维沃移动通信有限公司 定位模型的选择方法、终端及网络侧设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105933867A (zh) * 2016-06-23 2016-09-07 长沙学院 基于信道状态信息的被动式两锚点实时室内定位方法
US20180227714A1 (en) * 2017-02-06 2018-08-09 Qualcomm Incorporated Method and apparatus for motion detection systems
CN116347326A (zh) * 2021-12-24 2023-06-27 维沃移动通信有限公司 目标定位感知方法、装置、通信设备和存储介质
CN117255403A (zh) * 2022-06-10 2023-12-19 维沃移动通信有限公司 定位模型的选择方法、终端及网络侧设备

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