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WO2024017190A1 - Procédé et appareil de détermination de trajet pour détecter un signal, et dispositif de communication, système et support de stockage - Google Patents

Procédé et appareil de détermination de trajet pour détecter un signal, et dispositif de communication, système et support de stockage Download PDF

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Publication number
WO2024017190A1
WO2024017190A1 PCT/CN2023/107699 CN2023107699W WO2024017190A1 WO 2024017190 A1 WO2024017190 A1 WO 2024017190A1 CN 2023107699 W CN2023107699 W CN 2023107699W WO 2024017190 A1 WO2024017190 A1 WO 2024017190A1
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Prior art keywords
sensing
path
target
signal
perception
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Chinese (zh)
Inventor
杨坤
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/22—Alternate routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath

Definitions

  • the present application belongs to the field of communication technology, and specifically relates to a path determination method, device, communication equipment, system and storage medium for sensing signals.
  • parameter estimation needs to be performed based on the line-of-sight (LOS) path to obtain the parameters of the sensing target (such as Doppler frequency offset, time delay, angle information, etc.).
  • the network system measures parameters based on the parameters.
  • the LOS path requirement is a necessary prerequisite to ensure the accuracy of sensing measurement parameters.
  • the sensing signal cannot directly radiate to the sensing target or sensing area, and the sensing signal cannot produce effective sensing signal reflection.
  • Embodiments of the present application provide a path determination method, device, communication equipment, system and storage medium for a sensing signal, which can solve the problem that the sensing signal cannot be directly radiated to the sensing target or sensing area, and the sensing signal cannot produce effective sensing signal reflection. .
  • a method for determining a path of a sensing signal includes: a sensing detection device receiving a first sensing signal sent by a sensing signal sending device, and receiving a second sensing signal sent by the sensing signal sending device via an auxiliary node;
  • the perception detection device determines the channel characteristics of the first path and determines the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the perception detection device based on the first perception signal.
  • the channel characteristics of the second path are determined by the perception detection device. Determined based on the second sensing signal; the sensing detection device determines the third sensing signal transmission path based on the channel characteristics of the first path and the channel characteristics of the second path.
  • a path determination device for sensing signals which device includes: a receiving module and a determining module.
  • the receiving module is configured to receive the first sensing signal from the sensing signal sending device, and receive the second sensing signal sent by the sensing signal sending device via the auxiliary node.
  • Determining module used to determine the channel characteristics of the first path and determine the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the sensing detection device according to the first sensing signal.
  • the channel characteristics of the second path are determined by the sensing detection device.
  • the device determines based on the second sensing signal; and determines a third sensing signal transmission path based on the channel characteristics of the first path and the channel characteristics of the second path.
  • a method for determining a path of a sensing signal includes: a sensing signal sending device sends a first sensing signal to a sensing detection device, and sends a second sensing signal to the sensing detection device via an auxiliary node; wherein, The first sensing signal and the second sensing signal are used to determine the third sensing signal transmission path.
  • a path determination device for sensing signals which device includes: a sending module.
  • a sending module configured to send a first sensing signal to the sensing detection device, and to send a second sensing signal to the sensing detection device via the auxiliary node; wherein the first sensing signal and the second sensing signal are used to determine the third sensing signal transmission path .
  • a UE in a fifth aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.
  • a UE including a processor and a communication interface, wherein the processor is configured to receive a first sensing signal sent by a sensing signal sending device, and receive a second sensing signal sent by the sensing signal sending device via an auxiliary node;
  • the sensing detection device determines the channel characteristics of the first path and determines the channel characteristics of the second path.
  • the channel characteristics are determined by the perception and detection device based on the first perception signal, and the channel characteristics of the second path are determined by the perception and detection device based on the second perception signal; the perception and detection device is based on the channel characteristics of the first path and the channel characteristics of the second path, Determine the third sensing signal transmission path.
  • a perception signal sending device in a seventh aspect, includes a processor and a memory.
  • the memory stores programs or instructions that can be run on the processor.
  • the programs or instructions are processed by the processor.
  • the processor When the processor is executed, the steps of the method as described in the third aspect are implemented.
  • a sensing signal sending device including a processor and a communication interface, wherein the communication interface is used to send a first sensing signal to a sensing detection device, and to send a second sensing signal to the sensing detection device via an auxiliary node. Perception signal; wherein, the first perception signal and the second perception signal are used to determine the third perception signal transmission path.
  • a ninth aspect provides a communication system, including: a terminal and a network-side device.
  • the terminal can be configured to perform the steps of the path determination method for sensing signals as described in the first aspect.
  • the network-side device can be configured to perform as The steps of the path determination method for sensing signals described in the third aspect.
  • a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect.
  • a chip in an eleventh aspect, includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the method described in the first aspect. method, or implement a method as described in the third aspect.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect
  • the perception detection device may receive the first perception signal sent by the perception signal sending device, and receive the second perception signal sent by the perception signal sending device via the auxiliary node, thereby determining the channel characteristics of the first perception signal. and the channel characteristics of the second sensing signal, and determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing detection device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thus preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • Figure 1 is a schematic architectural diagram of a wireless communication system provided by an embodiment of the present application.
  • Figure 2 is one of the flow charts of a method for determining a path of a sensing signal provided by an embodiment of the present application
  • Figure 3 is the second flowchart of a method for determining a path of a sensing signal provided by an embodiment of the present application
  • Figure 4 is one of the structural schematic diagrams of a path determination device for sensing signals provided by an embodiment of the present application
  • Figure 5 is a second structural schematic diagram of a path determination device for sensing signals provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of the hardware structure of a communication device provided by an embodiment of the present application.
  • Figure 7 is a schematic diagram of the hardware structure of a UE provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of the hardware structure of a network-side device provided by an embodiment of the present application.
  • first, second, etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first,”
  • the objects distinguished by “second” are usually of the same type, and the number of objects is not limited.
  • the first object can be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/” generally indicates that the related objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced, LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency Division Multiple Access
  • system and “network” in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th Generation , 6G) communication system.
  • NR New Radio
  • FIG. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12.
  • the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, or a super mobile personal computer.
  • Tablet Personal Computer Tablet Personal Computer
  • laptop computer laptop computer
  • PDA Personal Digital Assistant
  • PDA Personal Digital Assistant
  • UMPC ultra-mobile personal computer
  • UMPC mobile Internet device
  • Mobile Internet Device MID
  • augmented reality augmented reality, AR
  • VR virtual reality
  • robots wearable devices
  • VUE vehicle-mounted equipment
  • PUE pedestrian terminal
  • smart home home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.
  • game consoles personal computers (personal computers, PC), teller machines or self-service Terminal devices
  • wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), Smart wristbands, smart clothing, etc.
  • the network side equipment 12 may include access network equipment or core network equipment, where the access network equipment 12 may also be called wireless access network equipment, radio access network (Radio Access Network, RAN), radio access network function or Wireless access network unit.
  • the access network device 12 may include a base station, a WLAN access point or a WiFi node, etc.
  • the base station may be called a Node B, an evolved Node B (eNB), an access point, a Base Transceiver Station (BTS), a radio Base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B-Node, Home Evolved B-Node, Transmitting Receiving Point (TRP) or all
  • eNB evolved Node B
  • BTS Base Transceiver Station
  • BSS Basic Service Set
  • ESS Extended Service Set
  • Home B-Node Home Evolved B-Node
  • TRP Transmitting Receiving Point
  • a wireless auxiliary device is designed to forward the sensing signal sent by the sensing signal sending device.
  • the specific implementation of the wireless auxiliary device can be an amplification and forwarding relay device, or an amplification and forwarding relay device with beam control function, or an intelligent surface RIS device. It can be understood that the working status of auxiliary equipment, such as switches, beam configurations, etc., is centrally controlled by the sensing signal sending device or by the background of the sensing system.
  • the sensing signal sending device and sensing detection device may be a base station, TRP, Wifi access point or terminal device in the wireless communication system.
  • RIS Reconfigurable Intelligent Surfaces
  • RIS can dynamically or semi-statically adjust its own electromagnetic properties (such as the phase, amplitude, polarization direction of electromagnetic signals, or a combination of multiple parameters) ), affecting the reflection or refraction behavior of electromagnetic waves incident on RIS; RIS can control the reflected waves or refraction signals of incident electromagnetic signals to achieve functions such as beam scanning or beam forming.
  • the network determines the location of the base station, the terminal location/intended beam direction, and the location of the RIS device and
  • the orientation of the RIS reflection surface determines the relative positional relationship between the network, RIS, and terminal/beam direction, and determines the corresponding RIS beamforming.
  • the network uses the process of simulated beam scanning or beam training to perform beam training of RIS beams. Take downlink beam training as an example.
  • the downlink signal beam of the base station remains unchanged (for example, the beam pointing to the downlink signal of RIS).
  • RIS sequentially uses reflected beams in different directions to forward the downlink signal.
  • the terminal receives the downlink signal to determine the downlink signal at different times. energy intensity, select the RIS reflection beam with the largest downlink signal energy as the RIS optimal beamforming.
  • Sensing capability refers to one or more devices with sensing capabilities that can perceive the orientation, distance, speed and other information of target objects through the sending and receiving of wireless signals, or detect, track, and detect target objects, events or environments, etc. Recognition, imaging, etc.
  • small first devices with high-frequency and large-bandwidth capabilities such as millimeter waves and terahertz in 6G networks
  • the resolution of perception will be significantly improved compared to centimeter waves, allowing 6G networks to provide more refined perception services.
  • Awareness deployment solutions can include the following methods:
  • the sensing node (such as a base station) has both the sensing signal transmitting function and the sensing signal receiving and detecting function.
  • the sensing node transmits the sensing signal and detects the reflected signal (echo) of the sensing target for sensing.
  • the sensing node determines the status of the sensing target (such as direction, position, movement, etc.) by sensing the echo signal of the target.
  • Single-point centralized sensing requires the sensing node to have good self-interference elimination performance to ensure the accuracy of sensing detection; single-point centralized sensing uses the signal sent by a single node as a reference signal and does not require synchronous cooperation between multiple nodes.
  • Multi-point distributed sensing sensing signal sending equipment and receiving detection equipment are located in different locations.
  • the receiving and detecting device detects the sensing signal sent by the sending device for sensing.
  • the base station 2 senses the environmental information between the base station 1 and the base station 2 by receiving the wireless signal from the base station 1 .
  • Multi-point distributed sensing usually requires comparison of multiple signals to achieve sensing measurement, for example, by comparing the current signal with the historical signal (previous or pre-stored result) to determine the status of the sensing target.
  • Distributed multi-point sensing avoids the interference isolation problem of spontaneous self-collection, but it has higher requirements for time and frequency synchronization between multiple nodes.
  • Interactive sensing Through information interaction between the sensing node and the sensing target object, the subject, time, frequency, format, etc. of electromagnetic wave transmission are agreed upon to complete the sensing process.
  • the sensing target has the function of sending and receiving signals, and performs signal interaction according to the sensing process to complete sensing measurements or report sensing results.
  • parameter estimation needs to be performed based on the LOS path to obtain the parameters of the sensing target (such as Doppler frequency offset, time delay, angle information, etc.).
  • the system infers the characteristics of the sensing target (such as movement) based on the parameter measurement parameters. speed, position, etc.).
  • the LOS path requirement is a necessary prerequisite to ensure the accuracy of sensing measurement parameters. Because, if the sensing signal passes through the NLOS path reflected/scattered by an unknown object, then the measurement results of the sensing signal will contain the characteristics of multiple objects (sensing targets and unknown objects), and the system cannot distinguish the characteristics of multiple objects. Leading to inaccurate perception results.
  • the single-point centralized sensing system requires the LOS path between the sensing node and the sensing target; the multi-point distributed sensing system requires the LOS path between the sensing signal sending node and the sensing target, the sensing detection node and the sensing target; interactive sensing The system requires a LOS path between the sensing node and the sensing target.
  • the sensing signal can be a single-beam system or a multi-beam system. Due to the complex and changeable characteristics of the wireless environment, the path from the sensing signal source (such as the base station) to the sensing target may be an NLOS transmission path, resulting in inaccurate sensing measurement results. Therefore, the sensing system can introduce auxiliary nodes to provide reliable transmission paths and realize sensing measurements under NLOS channels.
  • a reliable auxiliary node is a pre-deployed signal forwarding device that implements the transmission path from the sensing signal source to the auxiliary node, and the transmission path from the auxiliary node to the sensing target as the LOS path.
  • the receiving node of the sensing signal can distinguish the transmission path of the auxiliary node in the signal, thereby performing sensing measurements.
  • the auxiliary node is a pre-deployed fixed device, so it can be considered that the additional signal parameter changes (such as Doppler, delay, angle) introduced by the auxiliary node forwarding the signal are knowable and can be compensated from the sensing measurement results. This ensures the accuracy of the measurement results of the perceived target.
  • the auxiliary node can provide the sensing signal source (base station) to the auxiliary node in a single-beam sensing system, and establish the LOS path from the auxiliary node to the sensing target; or, in a multi-beam sensing system, for reference
  • the beam provides the sensing signal source to the auxiliary node, and the LOS path establishment from the auxiliary node to the sensing measurement node, or in a multi-beam sensing system, for the sensing beam, provides the sensing signal source to the auxiliary node, and the LOS path establishment from the auxiliary node to the sensing target.
  • the perception detection device may receive the first perception signal sent by the perception signal sending device, and receive the second perception signal sent by the perception signal sending device via the auxiliary node, thereby determining the channel characteristics of the first perception signal. and the channel characteristics of the second sensing signal, and determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing detection device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thus preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • FIG. 2 shows a flow chart of a method of determining a path of a sensing signal provided by an embodiment of the present application.
  • the path determination method for sensing signals provided by the embodiment of the present application may include the following steps 201 to 203.
  • Step 201 The perception detection device receives the first perception signal sent by the perception signal sending device, and receives the second perception signal sent by the perception signal sending device via the auxiliary node.
  • the above-mentioned sensing detection device may specifically be user equipment (User Equipment, UE).
  • User Equipment User Equipment
  • the above-mentioned sensing signal sending device may be a base station or a dedicated sensing node.
  • the above-mentioned auxiliary node may be any one of the following: reflective phase control RIS, reflective power control RIS, or transmissive RIS, or a full-duplex relay device.
  • the auxiliary node since the auxiliary node is deployed at a fixed location, it can ensure that the transmission path between the sensing node and the auxiliary node is a stable LOS path, so the transmission path from the base station to the auxiliary node to the sensing target will not introduce additional influencing factors. This ensures that the transmission path of the auxiliary node and the LOS path from the sensing node to the sensing target have similar sensing accuracy.
  • the above-mentioned sensing signal may be a beam directed to the sensing target or sensing area, or a beam directed to the auxiliary node and then directed by the auxiliary node to the sensing target or sensing area.
  • the above-mentioned beam may be a broadcast beam or a wide beam (that is, it can be directed to the sensing target or sensing area and the auxiliary node at the same time), or it can be multiple narrow beams (that is, it can be directed to the sensing target and the auxiliary node respectively).
  • the forwarding beam/transmitting beam of the above-mentioned auxiliary node may be a broadcast beam, a wide beam, or multiple narrow beams.
  • the sensing signal sending device uses different narrow beams to point to the sensing target and the auxiliary node respectively, the sensing signals of different narrow beams can use independently configured reference signals (such as time-frequency resources, pilot sequences).
  • step 201 can be specifically implemented through the following step 201a.
  • Step 201a When the sensing detection device and the sensing signal sending device are at the same location, receive the first sensing signal sent by the sensing target, and receive the second sensing signal sent by the auxiliary node.
  • the sensing signal sending device uses broadcast beams to send sensing signals, and the first sensing signal and the second sensing signal may be the same sensing signal.
  • the perception detection device can determine the following channel characteristics of the first path and the channel characteristics of the second path through the first perception signal and the second perception signal.
  • the perception detection device when the perception detection device and the perception signal transmitting device are at the same location, the perception detection device can sense the echo signal reflected or refracted by the target and the echo signal forwarded by the auxiliary node,
  • the channel characteristics of the first path and the channel characteristics of the second path are determined below.
  • perception detection device and perception signal sending device being in the same position can be understood as a device having a spontaneous self-receiving function, or a device having both a perception signal sending function and a perception detection function.
  • Step 202 The sensing and detection device determines the channel characteristics of the first path and determines the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the perception and detection device according to the first perception signal
  • the channel characteristics of the second path are determined by the perception and detection device according to the second perception signal.
  • the above-mentioned channel characteristics include at least one of the following: transmission time of the sensing signal, signal strength of the sensing signal, Doppler frequency offset of the sensing signal, arrival time of the sensing signal, and channel arrival angle.
  • the transmission time of the sensing signal is equal to the loopback time of the sensing signal.
  • the above-mentioned first path is a path from the sensing detection device to the sensing target, and the channel characteristic of the first path is sensing detection
  • the device determines based on the first sensing signal
  • the above-mentioned second path is a path from the sensing detection device to the sensing target via the auxiliary node, and the channel characteristics of the second path are determined by the sensing detection device based on the second sensing signal; the above step 202 may be This is achieved through step 202a described below.
  • Step 202a The sensing detection device performs channel measurement on the first sensing signal to determine the channel characteristics of the first path, and performs channel measurement on the second sensing signal to determine the channel characteristics of the second path.
  • the perception detection device can perform channel measurement on the first perception signal via the first path to obtain the channel characteristics of the first path, and the perception detection device can perform channel measurement on the second perception signal via the second path. , thereby obtaining the channel characteristics of the second path.
  • the perception detection device can perform channel measurement on the first perception signal and the second perception signal at the same time, or perform channel measurement on the first perception signal and the second perception signal separately to obtain the first path.
  • the channel characteristics of and the channel characteristics of the second path can be performed.
  • Step 203 The perception detection device determines a third perception signal transmission path according to the channel characteristics of the first path and the channel characteristics of the second path.
  • the perception detection device may determine the third perception signal transmission path based on the characteristic value in the channel characteristics of the first path and the characteristic value in the channel characteristics of the second path.
  • step 203 may be specifically implemented through the following step 203a or step 203b.
  • Step 203a The perception detection device compares the signal strength of the first perception signal in the first path with the signal strength of the second perception signal in the second path, and determines the third perception signal transmission path according to the relationship between the signal strengths. .
  • the perception detection device converts the first perception signal in the first path to The signal strength of the signal is compared with the signal strength of the second sensing signal in the second path, and the path corresponding to the stronger signal strength of the signal strength of the first sensing signal and the signal strength of the second sensing signal is determined as the third path. Sensing signal transmission path.
  • the perception detection device may convert the first perception signal into The signal strength of the signal and the signal strength of the second sensing signal are compared with the preset threshold respectively, and then the path corresponding to the signal strength that is smaller than the preset threshold among the signal strength of the first sensing signal and the signal strength of the second sensing signal is , determined as the third sensing signal transmission path.
  • the signal strength of the sensing signal may be the transmission power strength of the sensing signal.
  • Step 203b The perception detection device compares the arrival time of the first perception signal in the first path with the arrival time of the second perception signal in the second path, and determines the transmission of the third perception signal based on the arrival time sequence of the perception signals. path.
  • the perception detection device converts the arrival time of the first perception signal in the first path to The arrival time of the signal is compared with the arrival time of the second sensing signal in the second path, and the path corresponding to the earlier arrival time of the arrival time of the first sensing signal and the arrival time of the second sensing signal is determined as the third path. Sensing signal transmission path.
  • the sensing detection device can detect the characteristic value in the channel characteristic of the first path and the characteristic value in the channel characteristic of the second path, thereby determining the path corresponding to the characteristic value of the channel characteristic that satisfies the above relationship as
  • the third sensing signal transmission path thus improves the flexibility of the sensing detection device in selecting the third sensing signal transmission path.
  • the first perception signal when the perception detection device and the perception signal transmitting device are at different locations, the first perception signal includes the first target perception reference signal and/or the first target perception signal; the above-mentioned second perception signal The signal includes a second target sensing reference signal and/or a second target sensing signal.
  • the perception detection device can determine the third perception signal transmission path by calculating the channel characteristics of the two transmission paths, that is, by introducing an auxiliary node to provide an additional perception detection device and the perception signal transmission device. transmission path, thereby avoiding that the sensing signal cannot be directly radiated to the sensing target or sensing area when the LOS path between the sensing signal sending device and the sensing target is blocked, and improving the flexibility of the sensing detection device in selecting the transmission path of the sensing signal.
  • the above-mentioned first path includes a first target path and a second target path, and the first target path is the first target.
  • the channel characteristics of the first target path are determined by the sensing detection device based on the first target sensing reference signal; the above-mentioned second target path is the first target reference signal from the sensing device.
  • the perception detection device can perform channel measurement on the first target perception reference signal via the first target path to obtain the channel characteristics of the first target path, and the perception detection device can perform channel measurement on the second target perception reference signal via the second target path. Channel measurement is performed on the signal to obtain the channel characteristics of the second target path.
  • the above-mentioned second path includes a third target path and a fourth target path
  • the third target path is the second target
  • the path of the sensing signal from the sensing signal sending device to the sensing detection device via the sensing target, the channel characteristics of the third target path are determined by the sensing detection device according to the second target sensing reference signal;
  • the fourth target path It is a path of the second target sensing signal from the sensing signal sending device to the sensing detection device via the auxiliary node and the sensing target, and the channel characteristics of the fourth target path are determined by the sensing detection device according to the second target sensing signal.
  • the perception detection device can perform channel measurement on the first target perception signal via the third target path to obtain the channel characteristics of the third target path, and the perception detection device can perform channel measurement on the second target perception signal via the fourth target path. Channel measurement is performed to obtain the channel characteristics of the second target path.
  • step 203 may be specifically implemented through the following step 301 or step 302.
  • Step 301 The perception detection device determines a third target perception reference signal transmission path according to the channel characteristics of the first target path and the second target path.
  • the perception detection device may determine the third target perception reference signal transmission path based on the characteristic values in the channel characteristics of the first target path and the characteristic values in the channel characteristics of the second target path.
  • step 301 can be specifically implemented through the following step 301a or step 301b or step 301c.
  • Step 301a The perception detection device compares the signal strength of the first target perception reference signal in the first target path with the signal strength of the second target perception reference signal in the second target path. According to The relationship between signal strength determines the transmission path of the third target sensing reference signal.
  • the perception detection device after the perception detection device obtains the signal strength of the first target perception reference signal in the first target path and the signal strength of the second target perception reference signal in the second target path, the perception detection device will first The signal strength of the first target sensing reference signal in the target path is compared with the signal strength of the second target sensing reference signal in the second target path, and the signal strength of the first target sensing reference signal is compared with the signal strength of the second target sensing reference signal.
  • the path corresponding to the stronger one among the signal strengths is determined as the third target sensing reference signal transmission path.
  • the sensing detection device may compare the signal strength of the first target sensing reference signal and the signal strength of the second target sensing reference signal with a preset threshold respectively, and then compare the signal strength of the first target sensing reference signal with the signal strength of the second target sensing reference signal.
  • the path corresponding to the signal strength with a small difference in intensity from the preset threshold is determined as the third target sensing reference signal transmission path.
  • the signal strength of the sensing reference signal may be the transmission power strength of the sensing reference signal.
  • Step 301b The sensing detection device compares the arrival time of the first target sensing reference signal in the first target path with the arrival time of the second target sensing reference signal in the second target path, and determines the arrival time sequence of the sensing signals based on the arrival time of the sensing signals. , determine the third target sensing reference signal transmission path.
  • the perception detection device after the perception detection device obtains the arrival time of the first target perception reference signal in the first target path and the arrival time of the second target perception reference signal in the second target path, the perception detection device will first The arrival time of the first target sensing reference signal in the target path is compared with the arrival time of the second target sensing reference signal in the second target path, and the arrival time of the first target sensing reference signal is compared with the arrival time of the second target sensing reference signal.
  • the path corresponding to the shorter arrival time among the arrival times is determined as the third target sensing reference signal transmission path.
  • Step 301c The perception detection device compares the beam direction of the first target perception reference signal in the first target path with the wave speed direction of the second target perception reference signal in the second target path, and determines the third target perception based on the beam direction. Reference signal transmission path.
  • the perception detection device after the perception detection device obtains the beam direction of the first target perception reference signal in the first target path and the beam direction of the second target perception reference signal in the second target path, the perception detection device will first The beam direction of the first target sensing reference signal in the target path is compared with the beam direction of the second target sensing reference signal in the second target path, and the beam direction of the first target sensing reference signal is compared with the beam direction of the second target sensing reference signal.
  • the path corresponding to the beam direction that is the same as the preset beam direction in the beam direction is determined as the third target sensing reference signal transmission path.
  • the sensing detection device can detect the characteristic values in the channel characteristics of the first target path and the characteristic values in the channel characteristics of the second target path, thereby determining the path corresponding to the characteristic value of the channel characteristic that satisfies the above relationship,
  • the third target sensing reference signal transmission path is determined, thus improving the flexibility of the sensing detection device in selecting the third target sensing reference signal transmission path.
  • Step 302 The perception detection device determines a third target perception signal transmission path according to the channel characteristics of the third target path and the fourth target path.
  • the perception detection device may determine the third target perception signal transmission path based on the characteristic value in the channel characteristics of the third target path and the characteristic value in the channel characteristics of the fourth target path.
  • step 302 may be specifically implemented through the following step 302a or step 302b or step 302c.
  • Step 302a The perception detection device compares the signal strength of the first target perception signal in the third target path with the signal strength of the second target perception signal in the fourth target path, and determines the third target perception signal according to the relationship between the signal strengths. Target sensing signal transmission path.
  • the perception detection device obtains the signal strength of the first target perception signal in the third target path and the signal strength of the second target perception signal in the third target path
  • the perception detection device The signal strength of the first target sensing signal in the fourth target path is compared with the signal strength of the second target sensing signal in the fourth target path, and the signal strength of the first target sensing signal and the signal strength of the second target sensing signal are compared, whichever is stronger.
  • the path corresponding to the signal strength is determined as the third target sensing signal transmission path.
  • the perception detection device may Compare the signal strength of the first target sensing signal and the signal strength of the second target sensing signal with preset thresholds respectively, Then, the path corresponding to the signal strength with a smaller difference between the signal strength of the first target sensing signal and the signal strength of the second target sensing signal than the preset threshold is determined as the third target sensing signal transmission path.
  • the signal strength of the target sensing reference signal may be the transmission power strength of the target sensing signal.
  • Step 302b The sensing detection device compares the arrival time of the first target sensing signal in the third target path with the arrival time of the second target sensing signal in the fourth target path, and determines the third target sensing signal according to the arrival time sequence relationship of the sensing signals.
  • Target sensing signal transmission path The sensing detection device compares the arrival time of the first target sensing signal in the third target path with the arrival time of the second target sensing signal in the fourth target path, and determines the third target sensing signal according to the arrival time sequence relationship of the sensing signals.
  • the perception and detection device determines the arrival time of the third target perception signal in the third target path.
  • the arrival time of the first target sensing signal in the fourth target path is compared with the arrival time of the second target sensing signal in the fourth target path, and the arrival time of the first target sensing signal and the arrival time of the second target sensing signal are shorter.
  • the path corresponding to the arrival time is determined as the third target sensing signal transmission path.
  • Step 302c The sensing detection device compares the beam direction of the first target sensing signal in the third target path with the wave speed direction of the second target sensing signal in the fourth target path, and determines the transmission of the third target sensing signal based on the beam direction. path.
  • the perception and detection device After the perception and detection device obtains the beam direction of the first target perception signal in the third target path and the beam direction of the second target perception signal in the fourth target path, the perception and detection device converts the third target path to Compare the beam direction of the first target sensing signal with the beam direction of the second target sensing signal in the fourth target path, and neutralize the beam direction of the first target sensing signal and the beam direction of the second target sensing signal with the preset
  • the path corresponding to the beam direction with the same beam direction is determined as the third target sensing signal transmission path.
  • the perception detection device can detect the characteristic value in the channel characteristic of the third target path and the characteristic value in the channel characteristic of the fourth target path, thereby determining the path corresponding to the characteristic value of the channel characteristic that satisfies the above relationship, The third target sensing signal transmission path is determined, thereby improving the flexibility of the sensing detection device in selecting the third target sensing signal transmission path.
  • Embodiments of the present application provide a method for determining a path of a sensing signal.
  • the sensing detection device can receive a first sensing signal sent by a sensing signal sending device, and receive a second sensing signal sent by the sensing signal sending device via an auxiliary node, thereby determining The channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal are used to determine the third sensing signal transmission path.
  • the sensing detection device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thus preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • the sensing signal path determination method provided by the embodiment of the present application further includes the following step 401.
  • Step 401 When the perception detection device and the perception signal transmission device are at the same location, the perception detection device determines whether there is a first direct LOS path between the perception detection device and the perception signal transmission device through the first preset condition.
  • the above-mentioned first preset condition includes at least one of the following: whether the transmission time in the first path matches the preset time, whether the angle of arrival of the sensing signal matches the angle of emission of the sensing signal, whether the first arrival angle matches Whether the angle of arrival range of the diameter matches the preset angle of arrival range.
  • step 401 can be specifically implemented through the following step 401a.
  • Step 401a When there is no first LOS path between the sensing signal sending device and the sensing target, the sensing detection device determines the second path as the sensing signal transmission path.
  • the sensing detection device can detect whether there is a first LOS path between the sensing signal sending device and the sensing target, so that when there is no first LOS path between the sensing signal sending device and the sensing target, sensing detection The device determines the second path as the third sensing signal transmission path, thus improving the flexibility of the sensing detection device in selecting a transmission path.
  • the sensing signal path determination method provided by the embodiment of the present application further includes the following step 501.
  • Step 501 When the perception detection device and the perception signal transmission device are in different locations, the perception detection device determines whether there is a second LOS path between the perception detection device and the perception signal transmission device through the second preset condition.
  • the above-mentioned second preset condition includes at least one of the following: whether the transmission time in the first target path matches the preset time; whether the arrival angle range of the first arrival path of the sensing reference signal matches the preset arrival angle range. match.
  • step 501 can be specifically implemented through the following step 501a.
  • Step 501a When there is no second LOS path between the sensing signal sending device and the sensing detection device, the sensing detection device determines the second target path as the third target sensing reference signal transmission path.
  • the perception detection device can detect whether there is a second LOS path between the perception signal sending device and the perception detection device, so that when there is no second LOS path between the perception signal sending device and the perception detection device, The perception detection device determines the second target path as the third target perception reference signal transmission path, thus improving the flexibility of the perception detection device in selecting a transmission path.
  • the path determination method of the sensing signal provided by the embodiment of the present application further includes the following step 601 or step 602.
  • Step 601 The sensing detection device reports the measurement results of the channel characteristics of the first target path and the second target path to the sensing signal sending device.
  • the sensing detection device may report the measurement results of the channel characteristics of the first target path and the second target path to the sensing signal sending device through the uplink channel.
  • the above-mentioned uplink channel may be any one of the following: physical downlink shared channel, physical downlink control channel, physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), physical uplink control physical channel (Physical Uplink Control Channel, PUCCH), sidelink channel.
  • Step 602 The sensing detection device reports the selection result of the third target sensing reference signal transmission path to the sensing transmitting device.
  • the perception detection device may send the selection result of the third target perception reference signal transmission path of the device to the perception signal through a wireless physical channel.
  • the sensing signal path determination method provided by the embodiment of the present application further includes the following step 701.
  • Step 701 The sensing detection device determines whether a third LOS path exists between the sensing detection device and the sensing target through the third preset condition.
  • the above-mentioned third preset condition includes at least one of the following: whether the transmission time in the third target path matches the preset time, and whether the arrival angle range of the first arrival path of the sensing signal matches the preset arrival angle range. .
  • step 701 can be specifically implemented through the following step 701a.
  • Step 701a When there is no third LOS path between the sensing signal sending device and the sensing target, the sensing detection device determines the fourth target path as the third target sensing signal transmission path.
  • the sensing detection device can detect whether there is a third LOS path between the sensing signal sending device and the sensing target, so that when there is no third LOS path between the sensing signal sending device and the sensing target, sensing detection The device determines the fourth target path as the third target sensing signal transmission path, thus improving the flexibility of the sensing detection device in selecting a transmission path.
  • the path determination method of the sensing signal provided by the embodiment of the present application further includes the following step 801 or step 802.
  • Step 801 The sensing detection device reports the measurement results of the channel characteristics of the third target path and the fourth target path to the sensing signal sending device.
  • the sensing detection device may report the measurement results of the channel characteristics of the third target path and the fourth target path to the sensing signal sending device through the wireless physical channel.
  • the above-mentioned uplink channel may be any one of the following: physical downlink shared channel, physical downlink control channel, physical uplink shared channel (Physical Uplink Shared Channel, PUSCH), physical uplink control physical channel (Physical Uplink Control Channel (PUCCH) or sidelink channel.
  • physical downlink shared channel Physical Downlink Control channel
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • Step 802 The sensing detection device reports the selection result of the third target sensing signal transmission path to the sensing sending device.
  • the perception detection device may send the selection result of the third target perception signal transmission path of the device to the perception signal through a wireless physical channel.
  • FIG. 3 shows a flow chart of a method of determining a path of a sensing signal provided by an embodiment of the present application.
  • the path determination method for sensing signals provided by the embodiment of the present application may include the following step 901.
  • Step 901 The sensing signal sending device sends a first sensing signal to the sensing detection device, and sends a second sensing signal to the sensing detection device via the auxiliary node.
  • the first sensing signal and the second sensing signal are used to determine the third sensing signal transmission path.
  • the above-mentioned sensing signal includes at least one of the following: a beam that the sensing signal sending device directly points to the sensing target, or a beam that the sensing signal sending device points to the sensing target via an auxiliary node.
  • the sensing signal sending device may send the first sensing signal to the sensing detection device through the downlink channel, and send the second sensing signal to the sensing detection device via the auxiliary node.
  • the above-mentioned downlink channel may be any of the following: Physical Broadcast Channel (PBCH), Physical Downlink Shared Channel (PDSCH)
  • PBCH Physical Broadcast Channel
  • PDSCH Physical Downlink Shared Channel
  • Physical Downlink Control Channel Physical Downlink Control Channel, PDCCH.
  • Embodiments of the present application provide a method for determining a path of a sensing signal.
  • the sensing signal sending device can send a first sensing signal to a sensing detection device and a second sensing signal to an auxiliary node, thereby determining the first sensing signal based on the sensing detection device.
  • the channel characteristics of the signal and the channel characteristics of the second sensing signal are used to determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing signal sending device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thereby preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • the path determination method of the sensing signal provided by the embodiment of the present application can also be Including the following steps 1001.
  • Step 1001 The sensing signal sending device configures the auxiliary node to send relevant parameters of the second sensing signal, and sends the relevant parameters to the auxiliary node.
  • the above-mentioned relevant parameters include at least one of the following: the working time period of the auxiliary node, the time period during which the auxiliary node sends the second sensing signal, the working status of the auxiliary node, the default forwarding phase of the auxiliary node, and the default forwarding phase of the auxiliary node.
  • the sensing signal sending device configures the auxiliary node to send relevant parameters of the second sensing signal, and sends the relevant parameters to the auxiliary node through the downlink channel.
  • the path determination method of the sensing signal provided by the embodiment of the present application may further include the following step 1001 or step 1002.
  • Step 1001 The perception signal sending device receives the measurement results of the channel characteristics of the first target path and the second target path reported by the perception detection device.
  • the sensing signal sending device may receive the measurement results of the channel characteristics of the first target path and the second target path reported by the sensing detection device through the uplink channel, thereby determining the third sensing reference signal transmission path based on the measurement results.
  • Step 1002 The sensing signal sending device receives the third target sensing reference signal transmission path reported by the sensing sending device. the selection result.
  • the sensing signal sending device may receive the measurement results of the channel characteristics of the first target path and the second target path or the selection result of the third target sensing reference signal transmission path reported by the sensing detection device, and then determine the target sensing reference The signal transmission path thus improves the flexibility of the sensing signal sending device in selecting a transmission path.
  • the path determination method of the sensing signal provided by the embodiment of the present application may further include the following step 2001.
  • Step 2001 The sensing signal transmitting device configures the first transmission parameter of the third target sensing reference signal based on the measurement results of the channel characteristics of the first target path and the second target path or the selection result of the third target sensing reference signal transmission path.
  • the above-mentioned first transmission parameters include at least one of the following: a single sensing reference beam, multiple sensing reference beams, a first beam transmission mode, a first beam transmission power, a first beam transmission period, a first pilot Configuration information.
  • the first sending parameter may include a sequence of working states of the auxiliary node, for example, the first sending parameter configures the starting time point of the working time of the auxiliary node, and the sequence of working states of the auxiliary node (for example, bit 0 represents the default forwarding phase, Bit 1 represents the corresponding phase reversal working state.
  • the sequence can be an OCC sequence, such as "01" "10” "0101” "1100", etc.), and the time length corresponding to each working state (can be symbol/hour (time length in units of slot/subframe/radio frame/absolute time), the auxiliary node determines the time period of each working state of the auxiliary node based on the starting time point sequence.
  • the sensing signal sending device may further configure the forwarding beam corresponding to the working state sequence. Each forwarding beam corresponds to different time periods, which can be the same working state sequence or different working state sequences.
  • the path determination method of the sensing signal provided by the embodiment of the present application may further include the following step 3001 or step 3002.
  • Step 3001 When the sensing signal sending device transmits the third target sensing reference signal through the first target path, the sensing signal sending device determines the arrival angle of the first path in the first target path as the transmission target of the third target sensing reference signal. in the first direction, and transmits the third target sensing reference signal through the first direction.
  • Step 3002 When the sensing signal sending device transmits the third target sensing reference signal through the second target path, the sensing signal sending device determines the angle of arrival of the auxiliary node in the second target path as the third target sensing reference signal for transmission. two directions, and transmits the third target sensing reference signal through the second direction.
  • the path determination method of the sensing signal provided by the embodiment of the present application may further include the following step 4001 or step 4002.
  • Step 4001 The perception signal sending device receives the measurement results of the channel characteristics of the third target path and the fourth target path reported by the perception detection device.
  • the sensing signal sending device may receive the measurement results of the channel characteristics of the third target path and the fourth target path reported by the sensing detection device through the uplink channel.
  • Step 4002 The sensing signal sending device receives the selection result of the third target sensing signal transmission path reported by the sensing sending device.
  • the sensing signal sending device may receive the selection result of the third target sensing signal transmission path reported by the sensing sending device through the uplink channel.
  • the sensing signal sending device may receive the measurement results of the channel characteristics of the third target path and the fourth target path or the selection result of the third target sensing signal transmission path reported by the sensing detection device, and then determine the target sensing signal transmission path, thus improving the flexibility of the sensing signal sending device in selecting a transmission path.
  • the method for determining the path of the sensing signal provided by the embodiment of the present application may further include the following step 5001.
  • Step 5001 The sensing signal sending device configures the second sending parameters of the third target sensing signal according to the measurement results of the channel characteristics of the third target path and the fourth target path or the selection result of the third target sensing signal transmission path. number;
  • the above-mentioned second transmission parameters include at least one of the following: a single sensing reference beam, multiple sensing reference beams, a second first beam transmission mode, a second first beam transmission power, a second first beam transmission Period, second and first pilot configuration information.
  • the sensing signal path determination method provided by the embodiment of the present application may further include the following step 6001 or step 6002.
  • Step 6001 When the sensing signal sending device transmits the third target sensing signal through the third target path, the sensing signal sending device determines the arrival angle of the first path in the third target path as the third target sensing signal for transmission. three directions, and transmits the third target sensing signal through the third direction.
  • Step 6002 When the sensing signal sending device transmits the third target sensing signal through the fourth target path, the sensing signal sending device determines the angle of arrival of the auxiliary node in the fourth target path as the fourth direction for transmitting the third target sensing signal. , and transmit the third target sensing signal through the fourth direction.
  • Embodiment 1 This embodiment is a solution in which the sensing detection device and the sensing signal transmitting device are at the same location.
  • the sensing signal sending device has the ability to send and receive sensing signals at the same time, that is, full-duplex capability, such as a base station or a device node dedicated to sensing services.
  • full-duplex capability such as a base station or a device node dedicated to sensing services.
  • the sensing node chooses to use the LOS path to perform sensing services and follows the existing sensing process. There is no need to configure additional auxiliary nodes; when the LOS path is blocked, the sensing node can send sensing signals to the auxiliary node.
  • the auxiliary node forwards the sensing signal to sense the occluded area. If the sensing node chooses to use an auxiliary node for sensing, the auxiliary node forwards signals according to the preconfiguration.
  • the auxiliary node needs to have full-duplex capabilities (such as RIS or backscatter nodes or full-duplex capable relays).
  • the sensing signal path determination method provided by the embodiment of the present application specifically includes the following steps 21 to 26:
  • Step 21 The sensing signal sending device sends sensing signals to the sensing target or sensing area and the auxiliary node.
  • the above-mentioned sensing signal may be a beam directed to the sensing target or sensing area, or a beam directed to the auxiliary node and then directed to the sensing target or sensing area by the auxiliary node.
  • the above-mentioned beam is a broadcast beam/wide beam (that is, pointed at the sensing target/sensing area and the auxiliary node at the same time), or it can be multiple narrow beams (that is, directed at the sensing target and the auxiliary node respectively).
  • the transmission beam of the secondary node can be a broadcast beam/wide beam or multiple narrow beams. If the base station uses different narrow beams to point to the sensing target and the auxiliary node respectively, the sensing signals of different narrow beams can use independently configured reference signals (time-frequency resources, pilot sequences).
  • the sensing signal sending device configures the relevant parameters of signal forwarding for the auxiliary node, including: the working time period of the auxiliary node, corresponding to the sending time period of the sensing signal; the working status of the auxiliary node, for phase control
  • the type of auxiliary node corresponds to the default forwarding phase and the forwarding phase that is inverted from the default forwarding phase; further, a corresponding forwarding time period is configured for the phase of the auxiliary node's forwarding signal (the default forwarding phase and the corresponding forwarding phase that is inverted from the phase); Further optionally, configure the beam information of the auxiliary node to forward the signal, such as one or more directions of the forwarding beam. Different forwarding directions also need to configure corresponding working time periods.
  • the working state of the auxiliary node, for power control auxiliary nodes corresponds to the signal forwarding state and the silent state.
  • the configuration message of the sensing signal sending device includes the sequence of the working status of the auxiliary node, such as the starting time point of the base station configuring the working time of the auxiliary node, and the sequence of the working status of the auxiliary node (bit 0 indicates the default forwarding phase, bit 1 indicates Corresponding phase reversal working state, the sequence can be an OCC sequence, such as "01""10""0101"”1100", etc.), and the time length corresponding to each working state (can be symbol/time slot/ The time length in units of subframe/radio frame/absolute time), the auxiliary node determines the time period of each working state of the auxiliary node according to the starting time point sequence.
  • the base station may further configure the forwarding wave corresponding to the working state sequence. bundle. Each forwarding beam corresponds to different time periods, which can be the same working state sequence or different working state sequences.
  • Step 22 The sensing signal sending device receives the echo reflected by the sensing target, and determines the channel characteristics between the sensing signal sending device and the sensing target or sensing area.
  • the sensing signal sending device may determine whether a LOS path exists between the sensing signal sending device and the sensing target or sensing area. Yes: the time range of the expected loopback time RTT (i.e., the distance from the expected sensing target/sensing area to the base station, converted into the expected RTT value); the arrival angle range of the first reach path (i.e., the direction of the expected sensing target/sensing area); perception Whether the emission angle of the signal is the same as the arrival angle of the first reach path. If the judgment criteria are met, it is considered that there is a LOS path between the base station and the sensing target/sensing area; otherwise, it is an NLOS path.
  • the time range of the expected loopback time RTT i.e., the distance from the expected sensing target/sensing area to the base station, converted into the expected RTT value
  • the arrival angle range of the first reach path i.e., the direction of the expected sensing target/sensing area
  • Step 23 The sensing signal sending device receives the sensing signal forwarded by the auxiliary node, and determines the channel characteristics between the sensing signal sending device and the sensing target or sensing area via the auxiliary node.
  • the sensing signal sending device receives the sensing signal forwarded by the auxiliary node and ensures that the sending beam to the auxiliary device is the same as the sensing beam.
  • the corresponding transmission path for the sensing signal sending device to receive the sensing signal forwarded by the auxiliary device is base station-auxiliary device-sensing target-auxiliary device-base station.
  • the base station detects the channel characteristics of the above-mentioned transmission paths, including RTT, signal strength, and Doppler characteristics.
  • Step 24 The sensing signal sending device determines whether to use the transmission path corresponding to the auxiliary node for sensing.
  • the reference criteria may be: the signal strength of the transmission path of the auxiliary node is different from the signal strength of the LOS path (for example, the difference exceeds a predefined threshold); the RTT time conforms to the expected time range of the sensing system.
  • Step 25 When the sensing signal sending device senses the transmission path corresponding to the auxiliary node, the sensing signal sending device configures parameters for the auxiliary node.
  • the above configuration parameters include: forwarding beam, transmission power of the forwarding beam, corresponding working time period and working cycle.
  • the secondary node can have one or more forwarding beams.
  • the forwarding beam of the auxiliary node is a fixed beam.
  • the forwarding beams of the auxiliary node are multiple beams.
  • the sensing signal transmitting device determines the transmitting beam of the sensing signal based on the arrival angle of the received signal.
  • the sensing signal sending device uses the arrival angle of the first reach path as the beam direction of subsequent sensing services.
  • the sensing signal sending device uses the arrival angle of the received signal on the transmission path of the auxiliary node as the beam direction of the sensing service.
  • Step 26 The sensing signal sending device sends the sensing signal through the sensing signal transmission path and performs sensing measurement.
  • Embodiment 2 This embodiment is a solution where the sensing detection device and the sensing signal transmitting device are in different locations.
  • a multi-point distributed sensing system there are two beams, one is the reference beam from the sensing signal sending device to the sensing detection device, and the other is the sensing beam that the sensing signal sending device reaches the sensing detection device after being reflected or scattered by the sensing target.
  • the sensing and detection equipment receives signals corresponding to the reference beam and the sensing beam respectively, and uses the reference beam as a reference to determine the measurement quantity of the sensing beam (such as the arrival time of the sensing beam, Doppler frequency deviation, and angle of arrival). Both of the above beams may be blocked, and additional transmission paths can be established by providing forwarding signals through auxiliary nodes.
  • auxiliary nodes such as the arrival time of the sensing beam, Doppler frequency deviation, and angle of arrival.
  • the signal between the sensing transmitting node and the sensing receiving node can be a downlink channel, an uplink channel or a sidelink channel.
  • the sensing signal path determination method specifically includes the following steps 31 to 36:
  • Step 31 The sensing signal sending device sends the first sensing reference signal to the auxiliary node and the sensing detection device.
  • the above-mentioned first sensing reference signal is used to determine the sensing reference beam.
  • the sensing signal sending device sends the first sensing signal in a broadcast beam, and the sensing signal sending device may send the first sensing signal in multiple beams. It includes a beam directed to the auxiliary node, and the auxiliary node forwards the first sensing signal with a broadcast beam or multiple narrow beams in different directions.
  • Step 32 The sensing detection device receives the sensing signal and sends a first sensing reference signal, and the auxiliary node sends a second sensing reference signal.
  • the perception detection device determines the channel characteristics of the transmission path from the perception signal sending device to the perception detection device via the auxiliary node according to the first perception reference signal, and the perception detection device determines the channel characteristics of the transmission path from the perception signal sending device to the perception detection device according to the second perception reference signal. Channel characteristics.
  • the sensing detection device Before sensing the channel characteristics of the transmission path from the signal sending device to the sensing detection device via the auxiliary node, the sensing detection device can determine whether there is a connection between the sensing sending node and the receiving node based on whether the first reach path and the strongest energy path in the channel information are consistent. There is occlusion.
  • Step 33 The sensing detection device determines whether to use the transmission path corresponding to the auxiliary node for sensing.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • Step 34 The sensing detection device reports the selection result or measurement result to the sensing reference signal sending device.
  • the sensing detection device can measure the signal strength of the multiple forwarding beams and select the one or several paths with the best signal strength as the paths for sensing reference beams.
  • Step 35 The sensing signal sending device configures subsequent sensing signal sending parameters according to the reporting results.
  • the sensing signal sending device configures a single sensing reference beam, and uses the beam corresponding to the first reach path from the sensing signal sending device to the sensing detection device, or uses the beam forwarded by the sensing signal sending device through the auxiliary node.
  • the sensing signal sending device configures multiple sensing reference beams, uses the beam corresponding to the first reach path from the sensing signal sending device to the sensing detection device, and uses the beam forwarded by the sensing signal sending device through the auxiliary node.
  • Multiple beams can be transmitted simultaneously using frequency division or code division, or at different times.
  • the sensing signal transmitting device notifies the sensing detection device of the beam transmitting mode (single beam or multiple beams), transmitting power (if multi-beam transmitting, corresponding to the transmitting power of each beam), as well as the transmitting cycle and pilot configuration information.
  • the sensing signal sending device uses the beam forwarded by the auxiliary node, the sensing signal sending device configures the corresponding sending period and the forwarding beam of the auxiliary node to the auxiliary node.
  • Step 36 The sensing signal sending device sends subsequent sensing reference beams and executes the sensing service process.
  • the sensing signal path determination method provided by the embodiment of the present application specifically includes the following steps 41 to 46:
  • Step 41 The sensing signal sending device sends the first sensing signal.
  • the sensing signal sending device sends the first sensing signal in a broadcast beam, and the sensing signal sending device may send the first sensing signal in multiple beams. It includes a beam directed to the auxiliary node, and the auxiliary node forwards the first sensing signal with a broadcast beam or multiple narrow beams in different directions.
  • Step 42 The sensing detection device receives the sensing signal and sends the first sensing signal, and the auxiliary node sends the second sensing signal.
  • the perception detection device determines the channel characteristics of the transmission path from the perception signal sending device to the perception detection device via the auxiliary node according to the first perception signal, and the perception detection device determines the channel of the transmission path from the perception signal sending device to the perception detection device according to the second perception reference signal. feature.
  • the sensing detection device Before sensing the channel characteristics of the transmission path from the signal sending device to the sensing detection device via the auxiliary node, the sensing detection device can determine whether there is a connection between the sensing sending node and the receiving node based on whether the first reach path and the strongest energy path in the channel information are consistent. There is occlusion.
  • Step 43 The sensing detection device determines whether to use the transmission path corresponding to the auxiliary node for sensing.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • the transmission path corresponding to the auxiliary node is selected as the path of the reference beam.
  • Step 44 The sensing detection device reports the selection result or measurement result to the sensing signal sending device.
  • the sensing detection device can measure the signal strength of the multiple forwarding beams and select the one or several paths with the best signal strength as the paths for sensing reference beams.
  • Step 45 The sensing signal sending device configures subsequent sensing signal sending parameters according to the reporting results.
  • the sensing signal sending device configures a single sensing reference beam, and uses the beam corresponding to the first reach path from the sensing signal sending device to the sensing detection device, or uses the beam forwarded by the sensing signal sending device through the auxiliary node.
  • the sensing signal sending device configures multiple sensing reference beams, uses the beam corresponding to the first reach path from the sensing signal sending device to the sensing detection device, and uses the beam forwarded by the sensing signal sending device through the auxiliary node.
  • Multiple beams can be transmitted simultaneously using frequency division or code division, or at different times.
  • the sensing signal transmitting device notifies the sensing detection device of the beam transmitting mode (single beam or multiple beams), transmitting power (if multi-beam transmitting, corresponding to the transmitting power of each beam), as well as the transmitting cycle and pilot configuration information.
  • the sensing signal sending device uses the beam forwarded by the auxiliary node, the sensing signal sending device configures the corresponding sending period and the forwarding beam of the auxiliary node to the auxiliary node.
  • Step 46 The sensing signal sending device sends subsequent sensing beams and executes the sensing service process.
  • the execution subject of the path determination method for sensing signals provided by the embodiments of the present application may be a path determination device for sensing signals.
  • the path determination device for sensing signals executing the path determination method for sensing signals is used as an example to illustrate the implementation of the present application.
  • Example provides a path determination device for sensing signals.
  • Figure 4 shows a possible structural schematic diagram of a path determination device for sensing signals involved in the embodiment of the present application.
  • the path determination method device 400 for sensing signals may include: a receiving module 410 and a determining module 420 .
  • the receiving module 410 is configured to receive the first sensing signal sent by the sensing signal sending device, and receive the second sensing signal sent by the sensing signal sending device via the auxiliary node.
  • the determination module 420 is used to determine the channel characteristics of the first path and determine the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the sensing detection device based on the first sensing signal.
  • the channel characteristics of the second path are The perception detection device determines based on the second perception signal; and determines the third perception signal transmission path based on the channel characteristics of the first path and the channel characteristics of the second path.
  • the above-mentioned first path is a path from the sensing detection device to the sensing target, and the channel characteristics of the first path are Determined based on the first sensing signal;
  • the above-mentioned second path is a path from the sensing detection device to the sensing target via the auxiliary node, and the channel characteristics of the second path are determined by the sensing detection device based on the second sensing signal.
  • the first perception signal when the perception detection device and the perception signal transmitting device are at different locations, the first perception signal includes a first target perception reference signal and a first target perception signal; the above second perception signal includes the second target sensing reference signal and the second target sensing signal; the above-mentioned first path includes a first target path and a second target path, and the first target path is the first target sensing reference signal from the sensing signal sending device to the sensing detection device.
  • the above-mentioned second target path is the path of the first target reference signal from the sensing signal transmitting device to the sensing detection device via the auxiliary device, and the second target channel characteristics are determined by the sensing detection device based on the second target sensing reference signal;
  • the above-mentioned third The second path includes a third target path and a fourth target path.
  • the third target path is a path for the second target sensing signal from the sensing signal sending device to the sensing detection device via the sensing target.
  • the channel characteristic of the third target path is sensing detection.
  • the device determines based on the second target sensing reference signal; the fourth target path is the path of the second target sensing signal from the sensing signal sending device to the sensing detection device via the auxiliary node and the sensing target, and the channel characteristics of the fourth target path are sensing
  • the detection device is determined based on the second target sensing signal; the above-mentioned determination module 420 is specifically used to determine the third target sensing reference signal transmission path based on the channel characteristics of the first target path and the second target path; or based on the third target path and The channel characteristics of the fourth target path determine the third target sensing signal transmission path.
  • the above channel characteristics include at least one of the following: transmission time of the sensing signal, signal strength of the sensing signal, Doppler frequency offset of the sensing signal, arrival time of the sensing signal, and channel arrival angle.
  • the above-mentioned determination module 420 is specifically configured to compare the signal strength of the first sensing signal in the first path with the signal strength of the second sensing signal in the second path. According to the signal strength The strength relationship determines the third sensing signal transmission path; or compares the arrival time of the first sensing signal in the first path with the arrival time of the second sensing signal in the second path, and based on the arrival time sequence relationship of the sensing signals, It is determined as the third sensing signal transmission path.
  • the above-mentioned receiving module 410 is specifically configured to receive the first sensing signal sent by the sensing target and the third sensing signal sent by the auxiliary node when the sensing detection device and the sensing signal sending device are at the same location.
  • Two sensing signals; the above-mentioned determination module 420 is specifically used to perform channel measurement on the first sensing signal to determine the channel characteristics of the first path, and to perform channel measurement on the second sensing signal to determine the channel characteristics of the second path.
  • the above-mentioned determination module 420 is also configured to determine whether the perception detection device is based on the channel characteristics of the first path and the channel characteristics of the second path when the perception detection device and the perception signal transmitting device are at the same location. , before determining the third sensing signal transmission path, determine whether there is a first direct LOS path between the sensing detection device and the sensing signal sending device through a first preset condition; the first preset condition includes at least one of the following: first Whether the transmission time in the path matches the preset time; whether the angle of arrival of the sensing signal matches the angle of the emission angle of the sensing signal; whether the arrival angle range of the first reach path matches the preset arrival angle range.
  • the above-mentioned determination module 420 is specifically configured to determine the second path as the sensing signal transmission path by the sensing detection device when there is no first LOS path between the sensing signal sending device and the sensing target. .
  • the above-mentioned determination module 420 is also configured to, when the perception detection device and the perception signal sending device are at different locations, the perception detection device based on the channel characteristics of the first target path and the second target path, Before determining the third target sensing reference signal transmission path, determine whether there is a second LOS path between the sensing detection device and the sensing signal sending device through a second preset condition; the second preset condition includes at least one of the following: first Whether the transmission time in the target path matches the preset time; whether the arrival angle of the sensing reference signal matches the angle of the emission angle of the sensing reference signal; whether the arrival angle range of the first reach path of the sensing reference signal matches the preset arrival angle range match.
  • the above-mentioned determination module 420 is specifically configured to determine the second target path as the third target path by the perception detection device when there is no second LOS path between the perception signal sending device and the perception detection device. Target sensing reference signal transmission path.
  • the above-mentioned determination module 420 is specifically configured to compare the signal strength of the first target sensing reference signal in the first target path with the signal strength of the second target sensing reference signal in the second target path. Compare and determine the third target sensing reference signal transmission path according to the relationship between signal strengths; compare the arrival time of the first target sensing reference signal in the first target path with the arrival time of the second target sensing reference signal in the second target path. Compare the arrival times, and determine the transmission path of the third target sensing reference signal according to the arrival time sequence of the sensing signals; compare the beam direction of the first target sensing reference signal in the first target path with the second target sensing signal in the second target path. Compare the wave speed direction of the known reference signal, and determine the transmission path of the third target sensing reference signal according to the beam direction.
  • the sensing signal path determination method device provided by the embodiment of the present application further includes: a reporting module, a reporting module configured to determine the third target path according to the channel characteristics of the first target path and the second target path. After the target sensing reference signal transmission path is established, the measurement results of the channel characteristics of the first target path and the second target path are reported to the sensing signal sending device; or, the selection result of the third target sensing reference signal transmission path is reported to the sensing sending device.
  • the above-mentioned determination module 420 is specifically configured to determine the sensing signal transmission path through the third preset condition before determining the third target sensing signal transmission path according to the channel characteristics of the third target path and the fourth target path. Detect whether there is a third LOS path between the device and the sensing target; the third preset condition includes at least one of the following: whether the transmission time in the third target path matches the preset time; the angle of arrival of the sensing signal and the angle of arrival of the sensing signal Whether the emission angle matches; whether the arrival angle range of the first arrival path of the sensing signal matches the preset arrival angle range.
  • the above-mentioned determination module 420 is specifically configured to determine the fourth target path as the third target sensing reference signal when there is no third LOS path between the sensing signal transmitting device and the sensing target. transmission path.
  • the above-mentioned determination module 420 is specifically configured to compare the signal strength of the first target sensing signal in the third target path with the signal strength of the second target sensing signal in the fourth target path, According to the strength relationship of the signal strength, determine the third target sensing signal transmission path; compare the arrival time of the first target sensing signal in the third target path with the arrival time of the second target sensing signal in the fourth target path, Determine the third target sensing signal transmission path according to the arrival time relationship of the sensing signals; compare the beam direction of the first target sensing signal in the third target path with the wave speed direction of the second target sensing signal in the fourth target path, According to the beam direction, the third target sensing signal transmission path is determined.
  • the device for determining a path of a sensing signal provided by an embodiment of the present application further includes: a reporting module configured to determine the third target path according to the channel characteristics of the third target path and the fourth target path. After the three-target sensing signal transmission path is detected, the measurement results of the channel characteristics of the third target path and the fourth target path are reported to the sensing signal sending device;
  • the sensing detection device reports the selection result of the third target sensing signal transmission path to the sensing sending device.
  • Embodiments of the present application provide a path determination device for sensing signals.
  • the path determining device for sensing signals can receive a first sensing signal sent by a sensing signal sending device, and receive a second sensing signal sent by the sensing signal sending device via an auxiliary node. , thereby determining the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal, and determining the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing signal path determination device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thereby preventing the sensing signal from being directly radiated to the sensing target when the LOS path is blocked. Sensing area.
  • the sensing signal path determination device provided by the embodiments of the present application can implement each process implemented by the UE in the above method embodiments, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • Figure 5 shows a possible structural schematic diagram of a path determination device for sensing signals involved in the embodiment of the present application.
  • the path determination device 500 for sensing signals may include: a sending module 510 .
  • the sending module 510 is used to send the first perception signal to the perception detection device, and to send the second perception signal to the perception detection device via the auxiliary node; wherein the first perception signal and the second perception signal are used to determine the third perception signal. signal transmission path.
  • Embodiments of the present application provide a path determination device for sensing signals.
  • the path determination device for sensing signals can send a first sensing signal to a sensing detection device and a second sensing signal to an auxiliary node, thereby determining the third sensing signal based on the sensing detection device.
  • the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal are used to determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing signal path determination device can provide an additional sensing detection device and sensing signal sending device through the auxiliary node. transmission path between them, thereby preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • the device for determining the path of the sensing signal further includes: a receiving module; a receiving module configured to send the first sensing signal to the sensing detection device, and to the sensing detection device via the auxiliary node. After the device sends the second sensing signal, it receives the measurement results of the channel characteristics of the first target path and the second target path reported by the sensing detection device; or, receives the selection result of the third target sensing reference signal transmission path reported by the sensing sending device.
  • the device for determining the path of the sensing signal further includes: a configuration module; a configuration module configured to receive the selection result of the third target sensing reference signal transmission path reported by the sensing sending device. Afterwards, configure the first transmission parameter of the third target sensing reference signal according to the measurement results of the channel characteristics of the first target path and the second target path or the selection result of the third target sensing reference signal transmission path; wherein, the first transmission parameter It includes at least one of the following: a single sensing reference beam, multiple sensing reference beams, a first beam transmission mode, a first beam transmission power, a first beam transmission period, and first pilot configuration information.
  • the path determination device for sensing signals further includes: a determination module; a determination module configured to measure the channel characteristics of the first target path and the second target path according to the measurement results or the third target path.
  • the selection result of the three-target sensing signal transmission path after configuring the first transmission parameter of the third target sensing reference signal, when the sensing signal sending device transmits the third target sensing reference signal through the first target path, the first target path
  • the arrival angle of the first reach path in is determined as the first direction for transmitting the third target sensing reference signal, and the third target sensing reference signal is transmitted through the first direction; the sensing signal sending device transmits the third target sensing reference signal through the second target path.
  • the arrival angle of the auxiliary node in the second target path is determined as the second direction for transmitting the third target sensing reference signal, and the third target sensing reference signal is transmitted through the second direction.
  • the device for determining the path of the sensing signal further includes: a receiving module; the receiving module is further configured to send the first sensing signal to the sensing detection device, and send the first sensing signal to the sensing signal via the auxiliary node. After the detection device sends the second sensing signal, receive the measurement results of the channel characteristics of the third target path and the fourth target path reported by the sensing detection device; or, receive the selection result of the third target sensing signal transmission path reported by the sensing sending device. .
  • the device for determining the path of the sensing signal further includes: a configuration module; a configuration module configured to receive the selection of the third target sensing signal transmission path reported by the sensing signal sending device from the sensing sending device After the result, the sensing signal sending device configures the second sending parameter of the third target sensing signal according to the measurement results of the channel characteristics of the third target path and the fourth target path or the selection result of the third target sensing signal transmission path; wherein,
  • the two transmission parameters include at least one of the following: a single sensing reference beam, multiple sensing reference beams, a second first beam transmission mode, a second first beam transmission power, a second first beam transmission period, and a second first pilot. Configuration information.
  • the device for determining the path of the sensing signal also includes: a determining module; a determining module configured to sense the signal sending device according to the channel characteristics of the third target path and the fourth target path.
  • the measurement result or the selection result of the third target sensing signal transmission path after configuring the second transmission parameter of the third target sensing signal, in the case where the sensing signal sending device transmits the third target sensing signal through the third target path, the sensing signal is sent
  • the device determines the arrival angle of the first path in the third target path as the third direction for transmitting the third target sensing signal, and transmits the third target sensing signal through the third direction; when the sensing signal sending device transmits through the fourth target path In the case of a third target sensing signal, the sensing signal sending device determines the angle of arrival of the auxiliary node in the fourth target path as the fourth direction for transmitting the third target sensing signal, and transmits the third target sensing signal through the fourth direction.
  • the above configuration module is also used to configure the relevant parameters of the second sensing signal sent by the auxiliary node to the auxiliary node before sending the second sensing signal to the sensing detection device via the auxiliary node, and send the relevant parameters to the auxiliary node.
  • the relevant parameters include at least one of the following: the working time period of the auxiliary node; the time period during which the auxiliary node sends the second sensing signal; the working status of the auxiliary node; the default forwarding phase of the auxiliary node; the default forwarding phase of the auxiliary node; The forwarding phase of the transmission phase inversion; the forwarding time period corresponding to the default forwarding phase of the auxiliary node and the forwarding phase of the auxiliary node's default forwarding phase inversion; the auxiliary node forwards the beam information of the second sensing signal.
  • the above-mentioned sensing signal includes at least one of the following: a beam that the sensing signal sending device directly points to the sensing target; a beam that the sensing signal sending device points to the sensing target via an auxiliary node.
  • Embodiments of the present application provide a path determination device for sensing signals.
  • the path determination device for sensing signals can receive a first sensing signal sent by a sensing signal sending device, and receive a second sensing signal sent by the sensing signal sending device via an auxiliary node. , thereby determining the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal, and determining the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing signal path determination device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thereby preventing the sensing signal from being directly radiated to the sensing target when the LOS path is blocked. Sensing area.
  • the path determination device for sensing signals in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip.
  • the electronic device may be a terminal or other devices other than the terminal.
  • terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.
  • the sensing signal path determination device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figures 2 to 3, and achieve the same technical effect. To avoid duplication, the details will not be described here.
  • this embodiment of the present application also provides a communication device M00, which includes a processor M01 and a memory M02.
  • the memory M02 stores programs or instructions that can be run on the processor M01, for example.
  • the communication device M00 is a terminal
  • the program or instruction is executed by the processor M01
  • each step of the above sensing signal path determination method embodiment is implemented, and the same technical effect can be achieved.
  • the communication device M00 is a network-side device
  • the program or instruction is executed by the processor M01
  • the steps of the above sensing signal path determination method embodiment are implemented, and the same technical effect can be achieved. To avoid duplication, they will not be described again here. .
  • Embodiments of the present application also provide a UE, including a processor and a communication interface.
  • the processor is configured to sense and detect a device to receive a first sensing signal sent by a sensing signal sending device, and to receive a second sensing signal sent by a sensing signal sending device via an auxiliary node.
  • the perception detection device determines the channel characteristics of the first path, and determines the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the perception detection device based on the first perception signal, and the channel characteristics of the second path are determined by the perception detection device based on the first perception signal.
  • the second sensing signal is determined; the sensing detection device determines the third sensing signal transmission path according to the channel characteristics of the first path and the channel characteristics of the second path.
  • FIG. 7 is a schematic diagram of the hardware structure of a UE that implements an embodiment of the present application.
  • the UE7000 includes but is not limited to: at least one of a radio frequency unit 7001, a network module 7002, an audio output unit 7003, an input unit 7004, a sensor 7005, a display unit 7006, a user input unit 7007, an interface unit 7008, a memory 7009, a processor 7100, etc. Some parts.
  • the UE7000 can also include a power supply (such as a battery) that supplies power to various components.
  • the power supply can be logically connected to the processor 7100 through the power management system, thereby achieving management of charging, discharging, and power consumption management through the power management system. and other functions.
  • the UE structure shown in FIG. 7 does not constitute a limitation on the UE.
  • the UE may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be described again here.
  • the input unit 7004 may include a graphics processing unit (GPU) 7041 and a microphone 7042.
  • the graphics processor 7041 is responsible for the image capture device (GPU) in the video capture mode or the image capture mode. Process the image data of still pictures or videos obtained by cameras (such as cameras).
  • the display unit 7006 may include a display panel 7061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 7007 includes a touch panel 7071 and at least one of other input devices 7072 . Touch panel 7071, also called touch screen.
  • the touch panel 7071 may include both a touch detection device and a touch controller. parts.
  • Other input devices 7072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.
  • the radio frequency unit 7001 after receiving downlink data from the network side device, the radio frequency unit 7001 can transmit it to the processor 7100 for processing; in addition, the radio frequency unit 7001 can send uplink data to the network side device.
  • the radio frequency unit 7001 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.
  • Memory 7009 may be used to store software programs or instructions as well as various data.
  • the memory 7009 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc.
  • memory 7009 may include volatile memory or nonvolatile memory, or memory 7009 may include both volatile and nonvolatile memory.
  • non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory.
  • Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synch link DRAM) , SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DRRAM).
  • RAM Random Access Memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory Synchronous DRAM, SDRAM
  • Double data rate synchronous dynamic random access memory Double Data Rate SDRAM, DDRSDRAM
  • Enhanced SDRAM, ESDRAM synchronous link dynamic random access memory
  • Synch link DRAM synchronous link dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • the processor 7100 may include one or more processing units; optionally, the processor 7100 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 7100.
  • the radio frequency unit 7001 is configured to receive the first sensing signal sent by the sensing signal sending device, and receive the second sensing signal sent by the sensing signal sending device via the auxiliary node.
  • Processor 7100 configured to determine the channel characteristics of the first path and determine the channel characteristics of the second path.
  • the channel characteristics of the first path are determined by the sensing detection device based on the first sensing signal.
  • the channel characteristics of the second path are the sensing signals.
  • the detection device determines based on the second perception signal; the perception detection device determines the third perception signal transmission path based on the channel characteristics of the first path and the channel characteristics of the second path.
  • Embodiments of the present application provide a UE.
  • the UE can receive a first sensing signal sent by a sensing signal sending device, and receive a second sensing signal sent by the sensing signal sending device via an auxiliary node, thereby determining the channel characteristics of the first sensing signal. and the channel characteristics of the second sensing signal, and determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the UE can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thereby preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked.
  • the first perception signal includes the first target perception reference signal and the first target perception signal;
  • the second perception signal includes the first two target sensing reference signals and a second target sensing signal;
  • the first path includes a first target path and a second target path, and the first target path is the path of the first target sensing reference signal from the sensing signal sending device to the sensing detection device;
  • the channel characteristics of a target path are determined by the sensing detection device based on the first target sensing reference signal;
  • the second target path is the path of the first target reference signal from the sensing signal sending device via the auxiliary device to the sensing detection device, and the second target channel characteristics It is determined by the sensing detection device according to the second target sensing reference signal;
  • the second path includes a third target path and a fourth target path, and the third target path is for the second target sensing signal to pass from the sensing signal sending device to the sensing detection device via the sensing target.
  • the channel characteristics of the third target path are determined by the perception detection device according to the second target perception reference signal;
  • the fourth target path is the second target perception signal from the perception signal sending device via the auxiliary node and the perception target to the perception detection device path, the channel characteristics of the fourth target path are determined by the sensing detection device based on the second target sensing signal.
  • the above-mentioned processor 7100 is specifically configured to determine the third target sensing reference signal transmission path according to the channel characteristics of the first target path and the second target path; determine the third target sensing reference signal transmission path according to the channel characteristics of the third target path and the fourth target path. Three-target sensing signal transmission path.
  • the above-mentioned processor 7100 is specifically configured to compare the signal strength of the first sensing signal in the first path with the signal strength of the second sensing signal in the second path. According to the signal strength The strength relationship of the third sensing signal transmission path is determined; the arrival time of the first sensing signal in the first path is compared with the arrival time of the second sensing signal in the second path. According to the arrival time sequence relationship of the sensing signals, It is determined as the third sensing signal transmission path.
  • the above-mentioned radio frequency unit 7001 is specifically configured to receive the first sensing signal sent by the sensing target and receive the first sensing signal sent by the auxiliary node when the sensing detection device and the sensing signal sending device are at the same location. Second sense signal.
  • the above-mentioned processor 7100 is specifically configured to perform channel measurement on the first sensing signal to determine the channel characteristics of the first path, and perform channel measurement on the second sensing signal to determine the channel characteristics of the second path.
  • the above-mentioned processor 7100 is also used to determine the third path according to the channel characteristics of the first path and the channel characteristics of the second path when the sensing detection device and the sensing signal transmitting device are at the same location.
  • the first preset condition includes at least one of the following: transmission in the first path Whether the time matches the preset time; whether the angle of arrival of the sensing signal matches the angle of the emission angle of the sensing signal; whether the arrival angle range of the first reach path matches the preset arrival angle range.
  • the above-mentioned processor 7100 is specifically configured to determine the second path as the sensing signal transmission path when the first LOS path does not exist between the sensing signal transmitting device and the sensing target.
  • the above-mentioned processor 7100 is also configured to determine the third target path according to the channel characteristics of the first target path and the second target path when the perception detection device and the perception signal transmission device are at different locations.
  • the second preset condition includes at least one of the following: in the first target path Whether the transmission time matches the preset time; whether the arrival angle of the sensing reference signal matches the angle of the emission angle of the sensing reference signal; whether the arrival angle range of the first reach path of the sensing reference signal matches the preset arrival angle range.
  • the above-mentioned processor 7100 is specifically configured to determine the second target path as the third target sensing device when there is no second LOS path between the sensing signal sending device and the sensing detection device. Reference signal transmission path.
  • the above-mentioned processor 7100 is specifically configured to combine the signal strength of the first target sensing reference signal in the first target path with the signal strength of the second target sensing reference signal in the second target path. Compare and determine the third target sensing reference signal transmission path according to the strength relationship of the signal strength; compare the arrival time of the first target sensing reference signal in the first target path with the second target sensing reference signal in the second target path Compare the arrival times, and determine the third target sensing reference signal transmission path according to the arrival time sequence of the sensing signals; compare the beam direction of the first target sensing reference signal in the first target path with the second target in the second target path The wave speed direction of the sensing reference signal is compared, and the transmission path of the third target sensing reference signal is determined based on the beam direction.
  • the above-mentioned radio frequency unit 7001 is also configured to determine the third target sensing reference signal transmission path according to the channel characteristics of the first target path and the second target path, and then report the third target sensing reference signal transmission path to the sensing signal sending device. Measurement results of channel characteristics of the first target path and the second target path; or, reporting the selection result of the third target sensing reference signal transmission path to the sensing sending device.
  • the above-mentioned processor 7100 is further configured to determine the third target sensing signal transmission path through a third preset condition before determining the third target sensing signal transmission path according to the channel characteristics of the third target path and the fourth target path.
  • the third preset condition includes at least one of the following: whether the transmission time in the third target path matches the preset time; the angle of arrival of the sensing signal and the angle of arrival of the sensing signal Whether the emission angle matches; whether the arrival angle range of the first arrival path of the sensing signal matches the preset arrival angle range.
  • the above-mentioned processor 7100 is specifically configured to determine the fourth target path as the third target sensing reference when there is no third LOS path between the sensing signal transmitting device and the sensing target. signal transmission path.
  • the above-mentioned processor 7100 is specifically configured to compare the signal strength of the first target sensing signal in the third target path with the signal strength of the second target sensing signal in the fourth target path. , determine the third target sensing signal transmission path based on the relationship between signal strengths; compare the arrival time of the first target sensing signal in the third target path with the arrival time of the second target sensing signal in the fourth target path , determine the third target sensing signal transmission path according to the arrival time relationship of the sensing signals; compare the beam direction of the first target sensing signal in the third target path with the wave speed direction of the second target sensing signal in the fourth target path , determine the third target sensing signal transmission path according to the beam direction.
  • the above-mentioned radio frequency unit 7001 is also used to determine the third target sensing signal transmission path according to the channel characteristics of the third target path and the fourth target path by the sensing detection device, and then send the sensing signal to the sensing signal sending device. Report the measurement results of channel characteristics of the third target path and the fourth target path; or, report the selection result of the third target sensing signal transmission path to the sensing sending device.
  • the UE provided by the embodiments of this application can implement each process implemented by the UE in the above method embodiments, and achieve the same technical effect. To avoid duplication, details will not be described here.
  • Embodiments of the present application also provide a network-side device, including a processor and a communication interface.
  • the communication interface is used for a sensing signal sending device to send a first sensing signal to a sensing detection device, and to send a second sensing signal to the sensing detection device via an auxiliary node. signal; wherein the first sensing signal and the second sensing signal are used to determine the third sensing signal transmission path.
  • This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment.
  • Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.
  • the sensing signal sending device 6000 includes: an antenna 6001, a radio frequency device 6002, a baseband device 6003, a processor 6004 and a memory 6005.
  • Antenna 6001 is connected to radio frequency device 6002.
  • the radio frequency device 6002 receives information through the antenna 6001 and sends the received information to the baseband device 6003 for processing.
  • the baseband device 6003 processes the information to be sent and sends it to the radio frequency device 6002.
  • the radio frequency device 6002 processes the received information and sends it out through the antenna 6001.
  • the method performed by the network side device in the above embodiment can be implemented in the baseband device 6003, which includes a baseband processor.
  • the radio frequency device 6002 is used to send a first perception signal to the perception detection device, and to send a second perception signal to the perception detection device via the auxiliary node; wherein the first perception signal and the second perception signal are used to determine the third perception signal. signal transmission path.
  • Embodiments of the present application provide a sensing signal sending device.
  • the sensing signal sending device can send a first sensing signal to a sensing detection device and a second sensing signal to an auxiliary node, thereby determining the first sensing signal according to the sensing detection device.
  • the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal are used to determine the third sensing signal transmission path through the channel characteristics of the first sensing signal and the channel characteristics of the second sensing signal.
  • the sensing signal sending device can provide an additional transmission path between the sensing detection device and the sensing signal sending device through the auxiliary node, thereby preventing the sensing signal from being directly radiated to the sensing target or sensing area when the LOS path is blocked. .
  • the above-mentioned radio frequency device 6002 is also configured to receive the sensing signal after the sensing signal sending device sends the first sensing signal to the sensing detection device and sends the second sensing signal to the sensing detection device via the auxiliary node.
  • the detection device reports the measurement results of the channel characteristics of the first target path and the second target path; or, the sensing signal sending device receives the selection result of the third target sensing reference signal transmission path reported by the sensing sending device.
  • the processor 6004 is also configured to: after the sensing signal sending device receives the selection result of the third target sensing reference signal transmission path reported by the sensing sending device, according to the first target path and the second target path
  • the measurement results of channel characteristics or the selection results of the third target sensing reference signal transmission path configure the third target sensing
  • the first transmission parameter of the reference signal includes at least one of the following: a single sensing reference beam, multiple sensing reference beams, a first beam transmission mode, a first beam transmission power, a first beam transmission period, a One pilot configuration information.
  • the above-mentioned processor 6004 is also configured to transmit the sensing signal according to the measurement results of the channel characteristics of the first target path and the second target path or the selection result of the third target sensing signal transmission path, After configuring the first transmission parameter of the third target sensing reference signal, when the sensing signal transmitting device transmits the third target sensing reference signal through the first target path, the arrival angle of the first reach path in the first target path is determined as Transmitting the third target sensing reference signal in the first direction, and transmitting the third target sensing reference signal through the first direction; in the case where the sensing signal sending device transmits the third target sensing reference signal through the second target path, the sensing signal sending device The arrival angle of the auxiliary node in the second target path is determined as a second direction for transmitting the third target sensing reference signal, and the third target sensing reference signal is transmitted through the second direction.
  • the above-mentioned radio frequency device 6002 is also configured to receive the sensing signal after the sensing signal sending device sends the first sensing signal to the sensing detection device and sends the second sensing signal to the sensing detection device via the auxiliary node.
  • the detection device reports the measurement results of the channel characteristics of the third target path and the fourth target path; or, the receiving sensing sending device reports the selection result of the third target sensing signal transmission path.
  • the above-mentioned processor 6004 is also configured to: after the sensing signal sending device receives the selection result of the third target sensing signal transmission path reported by the sensing sending device, select the third target sensing signal transmission path according to the selection result of the third target sensing signal transmission path.
  • the measurement results of the channel characteristics or the selection result of the third target sensing signal transmission path configure the second transmission parameters of the third target sensing signal; wherein the second transmission parameters include at least one of the following: a single sensing reference beam, multiple sensing references beam, the second first beam transmission mode, the second first beam transmission power, the second first beam transmission period, and the second first pilot configuration information.
  • the above-mentioned radio frequency device 6002 is also used to transmit the sensing signal according to the measurement results of the channel characteristics of the third target path and the fourth target path or the selection result of the third target sensing signal transmission path, After configuring the second transmission parameter of the third target sensing signal, when the third target sensing signal is transmitted through the third target path, the sensing signal transmitting device determines the arrival angle of the first path in the third target path as the transmission angle of the third target sensing signal.
  • the third direction of the target sensing signal and transmits the third target sensing signal through the third direction; in the case of transmitting the third target sensing signal through the fourth target path, the arrival angle of the auxiliary node in the fourth target path is determined as the transmission angle of the third target sensing signal.
  • the third target senses the signal in the fourth direction, and transmits the third target sense signal through the fourth direction.
  • the above-mentioned processor 6004 is also configured to configure the relevant parameters of the second sensing signal sent by the auxiliary node before the sensing signal sending device sends the second sensing signal to the sensing detection device via the auxiliary node, and Relevant parameters are sent to the auxiliary node; where the relevant parameters include at least one of the following: the working time period of the auxiliary node; the time period for the auxiliary node to send the second sensing signal; the working status of the auxiliary node; the default forwarding phase of the auxiliary node; the auxiliary node The forwarding phase to which the default forwarding phase is reversed; the forwarding time period corresponding to the default forwarding phase of the auxiliary node and the forwarding phase to which the auxiliary node's default forwarding phase is reversed; the auxiliary node forwards the beam information of the second sensing signal.
  • the baseband device 63 may include, for example, at least one baseband board, which is provided with multiple chips, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.
  • the network side device may also include a network interface 6006, which is, for example, a common public radio interface (CPRI).
  • a network interface 6006 which is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network side device 6000 in the embodiment of the present application also includes: instructions or programs stored in the memory 6005 and executable on the processor 64.
  • the processor 6004 calls the instructions or programs in the memory 6005 to execute each of the steps shown in Figure 8. The method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.
  • Embodiments of the present application also provide a readable storage medium, with a program or instructions stored on the readable storage medium.
  • a program or instructions stored on the readable storage medium.
  • the processor is the processor in the terminal described in the above embodiment.
  • the readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.
  • An embodiment of the present application further provides a chip.
  • the chip includes a processor and a communication interface.
  • the communication interface is coupled to the processor.
  • the processor is used to run programs or instructions to implement the above method for determining the path of a sensing signal.
  • Each process of the embodiment can achieve the same technical effect, so to avoid repetition, it will not be described again here.
  • chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.
  • Embodiments of the present application further provide a computer program/program product.
  • the computer program/program product is stored in a storage medium.
  • the computer program/program product is executed by at least one processor to implement the path determination of the sensing signal.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande appartient au domaine technique des communications. Est divulgué un procédé de détermination de trajet pour un signal de détection. Selon les modes de réalisation de la présente demande, le procédé de détermination de trajet pour un signal de détection comprend les étapes suivantes : un dispositif de détection reçoit un premier signal de détection envoyé par un dispositif d'envoi de signal de détection, puis reçoit un second signal de détection envoyé par le dispositif d'envoi de signal de détection par le biais d'un nœud auxiliaire ; le dispositif de détection détermine une caractéristique de canal d'un premier trajet, puis détermine une caractéristique de canal d'un deuxième trajet, la caractéristique de canal du premier trajet étant déterminée par le dispositif de détection en fonction du premier signal de détection, et la caractéristique de canal du deuxième trajet étant déterminée par le dispositif de détection en fonction du second signal de détection ; et le dispositif de détection détermine un troisième trajet de transmission de signal de détection en fonction de la caractéristique de canal du premier trajet et de la caractéristique de canal du deuxième trajet.
PCT/CN2023/107699 2022-07-22 2023-07-17 Procédé et appareil de détermination de trajet pour détecter un signal, et dispositif de communication, système et support de stockage Ceased WO2024017190A1 (fr)

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