WO2024046195A1 - Sensing signal processing methods and apparatuses, and communication device - Google Patents

Abstract

The present application belongs to the technical field of communications. Disclosed are sensing signal processing methods and apparatuses, and a communication device. A sensing signal processing method in the embodiments of the present application comprises: a first device sends a sensing signal. The features of a resource pattern of the sensing signal comprise: resources of the sensing signal comprising a first partial resource and a second partial resource, a first frequency domain resource length of the first partial resource being greater than a second frequency domain resource length of the second partial resource, and a first time domain resource length of the first partial resource being less than a second time domain resource length of the second partial resource.

Description

Sensing signal processing method, device and communication equipment

Cross-references to related applications

This application claims priority to Chinese Patent Application No. 202211041311.3 filed in China on August 29, 2022, the entire content of which is incorporated herein by reference.

Technical field

The present application belongs to the field of communication technology, and specifically relates to a sensing signal processing method, device and communication equipment.

Background technique

In most radar applications, simultaneous ranging and speed measurement services are required. In related technologies, ranging and speed measurement are performed by sending sensing signals whose time-frequency domain resource patterns are regular rectangular shapes. However, when the signal-to-noise ratio (SNR) is high and the processing gain is sufficient, using a uniform rectangular shape to sense the signal requires a large resource overhead and is not flexible enough.

Contents of the invention

Embodiments of the present application provide a sensing signal processing method, device and communication equipment, which can solve the problem of how to reduce the resource overhead of sensing signals when performing ranging and speed measurement services.

The first aspect provides a perceptual signal processing method, including:

The first device sends a sensing signal;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

In the second aspect, a perceptual signal processing method is provided, including:

The second device receives a sensing signal, and the characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the first frequency domain resource length of the first part of resources is greater than the length of the third part of resources. The second frequency domain resource length of the two parts of resources, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

In a third aspect, a perceptual signal processing device is provided, applied to the first device, including:

The first sending module is used to send sensing signals;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

In a fourth aspect, a perceptual signal processing device is provided, applied to the second device, including:

The first receiving module is configured to receive a sensing signal. The characteristics of the resource pattern of the sensing signal include: the sensing signal The resources of the signal include a first part of resources and a second part of resources. The first frequency domain resource length of the first part of the resource is greater than the second frequency domain resource length of the second part of the resource. The first time domain of the first part of the resource is The resource length is smaller than the second time domain resource length of the second part of the resources.

In a fifth aspect, a terminal (first device or second device) is provided. The terminal includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. The program or instructions are When executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

In a sixth aspect, a terminal (first device or second device) is provided, including a processor and a communication interface, wherein the communication interface is used to send a sensing signal;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

In a seventh aspect, a network side device (first device or second device) is provided. The network side device includes a processor and a memory, and the memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the steps of the method described in the first aspect or the second aspect are implemented.

In an eighth aspect, a network side device (first device or second device) is provided, including a processor and a communication interface, wherein the communication interface is used to receive a sensing signal, and the characteristics of the resource pattern of the sensing signal include: : The resources of the sensing signal include a first part of resources and a second part of resources. The length of the first frequency domain resource of the first part of the resource is greater than the length of the second frequency domain resource of the second part of the resource. The length of the first part of the resource is The length of the first time domain resource is less than the second length of the second part of the resource.

A ninth aspect provides a perceptual signal processing system, including: a first device and a second device. The first device can be used to perform the steps of the method described in the first aspect. The second device can be used to perform The steps of the method as described in the second aspect.

In a tenth 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 second aspect.

In an eleventh aspect, a chip is provided. 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 method described in the first aspect. method, or implement a method as described in the second aspect.

In a twelfth 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 the first aspect or the second aspect. The steps of the method described in the second aspect.

In this embodiment of the present application, the resources of the sensing signal sent by the first device include a first part of the resource and a second part of the resource, and the first frequency domain resource length of the first part of the resource is greater than the second frequency domain of the second part of the resource. Resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can be compared with the second part of the resource. It can obtain higher distance resolution or delay resolution. The length of the first time domain resource is smaller than the length of the second time domain resource, so that the second part of the resource can obtain higher speed resolution or Doppler than the first part of the resource. resolution, so that the above-mentioned first part of resources and the second part of resources can meet the ranging and speed measurement requirements respectively, and the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

Description of drawings

Figure 1 shows a structural diagram of a communication system applicable to the embodiment of the present application;

Figure 2 shows one of the schematic flow diagrams of the sensing signal processing method according to the embodiment of the present application;

Figure 3 shows one of the schematic diagrams of resource patterns of sensing signals in the embodiment of the present application;

Figure 4 shows the second schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 5 shows the third schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 6 shows the fourth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 7 shows the fifth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 8 shows the sixth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 9 shows the seventh schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 10 shows the eighth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 11 shows the ninth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 12 shows the tenth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 13 shows the eleventh schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 14 shows the twelfth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 15 shows the thirteenth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 16 shows the fourteenth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 17 shows the fifteenth schematic diagram of the resource pattern of the sensing signal in the embodiment of the present application;

Figure 18 shows the second schematic flowchart of the sensory signal processing method according to the embodiment of the present application;

Figure 19 shows a schematic diagram of SNR calculation of one-dimensional graph in the embodiment of the present application;

Figure 20 shows one of the module schematic diagrams of the perceptual signal processing device according to the embodiment of the present application;

Figure 21 shows the second module schematic diagram of the sensory signal processing device according to the embodiment of the present application;

Figure 22 shows a structural block diagram of a communication device according to an embodiment of the present application;

Figure 23 shows a structural block diagram of a terminal according to an embodiment of the present application;

Figure 24 shows one of the structural block diagrams of the network side device according to the embodiment of the present application;

Figure 25 shows the second structural block diagram of the network side device according to the embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the implementation in this application For example, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "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 that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "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.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "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. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in much of the following description, but these techniques can also be applied to applications other than NR system applications, such as 6th ^generation Generation, 6G) communication system.

Figure 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 may 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 palmtop computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device or a core network device, where the access network device may also be called a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a wireless access network unit. Access network equipment may include a base station, a Wireless Local Area Network (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 ( Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), home B-node, home evolved B-node, transmitting and receiving point ( Transmission Reception Point (TRP) or other A suitable term, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and the base station is not limited. Concrete type. Core network equipment may include but is not limited to at least one of the following: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Service Discovery function (Edge Application Server Discovery Function, EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), centralized network configuration ( Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (Local NEF, or L-NEF), Binding Support Function (Binding Support Function, BSF), application function (Application Function, AF), etc. It should be noted that in the embodiment of this application, only the core network equipment in the NR system is used as an example for introduction, and the specific type of the core network equipment is not limited.

In order to enable those skilled in the art to better understand the embodiments of the present application, the following description is provided first.

Future mobile communication systems such as Beyond 5th Generation (B5G) systems or 6G systems will not only have communication capabilities, but also perception capabilities. 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. In the future, with the deployment of small base stations 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. Typical sensing functions and application scenarios are shown in Table 1.

Table 1

Communication and perception integration means to realize the integrated design of communication and perception functions in the same system through spectrum sharing and hardware sharing. While transmitting information, the system can sense orientation, distance, speed and other information, and detect target objects or events. , tracking, identification, communication system and perception system complement each other to achieve overall performance improvement and bring Come for a better service experience.

The integration of communications and radar is a typical communication-aware fusion application. In the past, radar systems and communication systems were strictly distinguished due to different research objects and focuses. In most scenarios, the two systems were studied separately. In fact, radar and communication systems are also typical ways of transmitting, acquiring, processing, and exchanging information. There are many similarities in terms of working principles, system architecture, and frequency bands. The design of integrated communication and radar has great feasibility, which is mainly reflected in the following aspects: First, the communication system and the sensing system are based on the electromagnetic wave theory, using the emission and reception of electromagnetic waves to complete the acquisition and transmission of information; secondly, Both communication systems and perception systems have structures such as antennas, transmitters, receivers, and signal processors, and have a large overlap in hardware resources. With the development of technology, there is more and more overlap between the two in their working frequency bands; In addition, there are similarities in key technologies such as signal modulation, reception detection, and waveform design. The integration of communication and radar systems can bring many advantages, such as saving costs, reducing size, reducing power consumption, improving spectrum efficiency, reducing mutual interference, etc., thereby improving the overall performance of the system.

According to the difference between the sensing signal sending node and the receiving node, it is divided into the following six types of sensing links. It should be noted that each sensing link described below uses a sending node and a receiving node as an example. In the actual system, according to different Different sensing links can be selected according to the sensing requirements. Each sensing link can have one or more sending nodes and receiving nodes, and the actual sensing system can include a variety of different sensing links.

1) Base station echo sensing. In this way, the base station sends a sensing signal and obtains sensing results by receiving the echo of the sensing signal.

2) Air interface sensing between base stations. At this time, base station 2 receives the sensing signal sent by base station 1 and obtains the sensing result.

3) Uplink air interface sensing. At this time, the base station receives the sensing signal sent by the user terminal (User Equipment, UE) and obtains the sensing result.

4) Downlink air interface sensing. At this time, the UE receives the sensing signal sent by the base station and obtains the sensing result.

5) Terminal echo perception. At this time, the UE sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal.

6) Inter-terminal side link (Sidelink) perception. For example, UE 2 receives the sensing signal sent by UE 1 and obtains the sensing result.

In addition, commonly used reference signals for NR are shown in Table 2.

Table 2

Among them, the analysis of different signals used for perception is as follows:

1. Demodulation Reference Signal (DMRS):

In order to ensure the communication rate, there are certain restrictions on the reference signal resource overhead, and the bandwidth and time domain duration may not meet the sensing needs;

Due to the randomness of service attainment and the uncertainty of scheduled time-frequency resources, the distribution of demodulation reference signals in the time-frequency domain may be non-uniform and discontinuous;

Affected by precoding, the result obtained after initial channel estimation at the receiving end may not reflect the original channel information.

2. Channel State Information-Reference Signal (CSI-RS), Tracking Reference Signal (TRS) or Sounding Reference Signal (SRS):

It can be periodic transmission or non-periodic transmission, and the occupied time-frequency domain resources can be flexibly allocated by the system according to the purpose; it can also not be affected by precoding, making it easier to obtain the original channel information;

3. Synchronization signal, which is the primary synchronization signal (Primary Synchronization Signal, PSS) or the secondary synchronization signal (Secondary Synchronization Signal, SSS):

It is an always on signal that is sent continuously;

Limited bandwidth and insufficient ranging resolution;

The cycle can be configured as 5ms, 10ms, 20ms, 40ms, 80ms or 160ms. The time domain interval is larger and the speed measurement range is smaller;

4. Phase-tracking reference signal (PT-RS):

The frequency domain distribution is sparse and the time domain distribution is dense, suitable for speed measurement and Doppler related sensing applications;

5. Positioning Reference Signal (PRS):

It adopts a comb structure in the frequency domain and an interleaved mapping in the time domain. It can adapt to different sensing resolution requirements through different time-frequency domain pattern configurations and can be used for high-precision sensing;

6. Data symbols:

It generally occupies more time-frequency resources than the reference signal and can be used as a supplement to the channel information obtained through the reference signal;

The data signal is different from the dedicated sequence used in the reference signal. The autocorrelation and cross-correlation characteristics are not ideal, and the influence of the receiving end algorithm may affect the perception performance;

For dual-station or multi-station sensing mode, the receiving end needs to first perform demodulation to obtain data information, and then use the data signal to estimate the channel matrix information. Affected by data demodulation performance, demodulation errors will seriously affect sensing performance.

There are certain problems when the current reference signal is designed to be used for ranging/delay measurement and speed/Doppler measurement:

When performing simultaneous ranging and speed measurement, there is a contradiction between the need to meet both high distance resolution and high speed resolution. Taking the highway scene as an example, the distance resolution reaches 0.5m, the corresponding signal bandwidth is 300MHz, and the speed resolution reaches 0.5m. /s, when the center frequency is 28GHz, the corresponding coherent processing time is 0.0107s. Assuming that the maximum speed of the sensing target reaches 250km/h, according to the requirements of distance-free unit movement, the maximum coherent processing time is 0.0036s, which is less than required to meet the corresponding speed resolution. processing time.

In most radar applications, simultaneous ranging and speed measurement services are required. Generally, there is no need to consider resource overhead issues. When transmitting, the frequency domain resource pattern is a uniform rectangular signal for perception. When the SNR is high and the processing gain is sufficient, using a uniform rectangular sensing design is expensive and not flexible enough. For example, if high-resolution sensing is required, the total length of time/frequency domain resources will be longer. At this time, if in order to save Overhead, reducing the density will lead to a reduction in the maximum unblurred sensing range. On the other hand, it is not conducive to efficient use of resources when sensing multiple devices.

Conventional ranging and speed measurement algorithms based on Fast Fourier Transform (FFT) require uniform sampling in the time and frequency domain. The general sensing signal configuration is also uniformly distributed. Currently, each time slot symbol of NR has a cyclic prefix (CP). ) lengths lead to non-uniform sampling. If one or more time slots are used to sample, the sampling interval will be larger. Taking CSI-RS as an example, the minimum period is 4 time slots. At the subcarrier interval SCS=120kHz, fc =28GHz, the maximum unambiguous speed is only 5.36m/s (21.43m/s at 1Slot interval).

In order to further improve resource utilization efficiency and ensure sensing performance, it is necessary to design the time-frequency domain pattern of the sensing signal.

The perceptual signal processing method provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings through some embodiments and their application scenarios.

As shown in Figure 2, this embodiment of the present application provides a perceptual signal processing method, including:

Step 201: The first device sends a sensing signal;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

The above resource pattern is used to indicate the time domain resources and frequency domain resources occupied by the sensing signal.

Here, the first frequency domain resource length of the first part of the resource is greater than the second frequency domain resource length of the second part of the resource, which enables the first part of the resource to obtain a higher distance resolution or delay relative to the second part of the resource. resolution;

The first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource, which enables the second part of the resource to obtain higher speed resolution or Doppler resolution relative to the first part of the resource. Rate.

Optionally, the sensing signals corresponding to the first part of the resources and the second part of the resources may be partially the same. The sensing signal can be a pilot signal designed based on M sequence, Gold sequence, Kasami sequence, Golay sequence, Zadoff-Chu sequence, etc., or it can be communication data, or it can be a common radar signal such as linear frequency modulation signal, or it can be a new signal. Designed synaesthetic integration signals.

The above-mentioned first device may be a base station, or the first device may be a terminal.

In this embodiment of the present application, the resources of the sensing signal sent by the first device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource enables the second part of the resource to obtain a higher speed resolution or Doppler resolution than the first part of the resource, so that the above-mentioned first part of the resource and the second part of the resource can meet the ranging and speed measurement requirements respectively. Moreover, the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Here, the first time-domain resource interval of the first part of the resource (Part1) is less than or equal to the second time-domain resource interval of the second part of the resource (Part2), so that the first part of the resource can obtain the same or greater resource than the second part of the resource. Without blurring the speed or Doppler measurement range, the second frequency domain resource interval of the second part of the resource is less than or equal to the first frequency domain resource interval of the first part of the resource, so that the second part of the resource can obtain the same or better results relative to the first part of the resource. Large unambiguous distance or delay measurement range.

Optionally, the method in the embodiment of this application also includes:

The first device determines resource configuration information of the sensing signal;

Determine the resource pattern of the sensing signal according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

As a first optional implementation manner, the first device determines the resource configuration information of the sensing signal, including:

The first device determines the first frequency domain resource length and the second time domain resource length according to the sensing resolution.

Perceptual resolution here includes range resolution, delay resolution, velocity resolution and Doppler resolution. One item is missing. The perceptual resolution here can be obtained according to perceptual requirements.

Optionally, the first device determines the first frequency domain resource length and the second time domain resource length according to the sensing resolution, including:

The first device determines the length of the first frequency domain resource based on distance resolution or delay resolution;

The first device determines the second time domain resource length based on velocity resolution or Doppler resolution.

Optionally, the first frequency domain resource length satisfies the following formula:
B ₁ ≥c/(2ΔR);

Among them, B ₁ represents the length of the first frequency domain resource, c represents the speed of light, and ΔR is the distance resolution;

Alternatively, the length of the first frequency domain resource satisfies the following formula:
B ₁ ≥1/Δτ;

Among them, B ₁ represents the length of the first frequency domain resource, and Δτ represents the delay resolution.

Optionally, the second time domain resource length satisfies the following formula:
T ₂ ≥c/(2f _c Δv);

Among them, T ₂ represents the length of the second time domain resource, c represents the speed of light, Δv represents the velocity resolution, and f _c represents the center frequency point;

Alternatively, the second time domain resource length satisfies the following formula:
T ₂ ≥1/ _Δfd ;

Among them, T ₂ represents the second time domain resource length, and Δf _d represents the Doppler resolution.

Optionally, the first device determines resource configuration information of the sensing signal, including at least one of the following:

The first item: Determine the length of the first time domain resource based on at least one of the length of the first frequency domain resource, the distance resolution corresponding to the first part of the resource, the delay resolution corresponding to the first part of the resource, and the maximum speed of the sensing target;

The second item: Determine the second frequency domain based on at least one of the length of the second time domain resource, the speed resolution corresponding to the second part of the resource, the Doppler resolution corresponding to the second part of the resource, and the maximum speed of the perceived target. Resource length.

Optionally, for the first item above: the length of the first time domain resource satisfies one of the following formulas:
T ₁ ≤c/(4B ₁ v _max );
T ₁ ≤ΔR ₁ /(2v _max );
T ₁ ≤cΔτ ₁ /(4v _max );
T ₁ ≤c/(4B ₁ |v _max |);
T ₁ ≤ΔR ₁ /(2|v _max |);
T ₁ ≤cΔτ ₁ /(4|v _max |);

Among them, T ₁ represents the length of the first time domain resource, ΔR ₁ represents the distance resolution corresponding to the first part of the resource, v _max represents the maximum speed of the sensing target, B ₁ represents the length of the first frequency domain resource, and Δτ ₁ represents the corresponding distance of the first part of the resource. delay minutes Resolution, c represents the speed of light;

Specifically, if the speed direction is not considered, the length of the first time domain resource satisfies T ₁ ≤ c/(4B ₁ v _max ) or T ₁ ≤ ΔR ₁ /(2v _max ); if the speed direction is considered, the length of the first time domain resource is It satisfies T ₁ ≤c/(4B ₁ |v _max |), T ₁ ≤ΔR ₁ /(2|v _max |) or T ₁ ≤cΔτ ₁ /(4|v _max |).

For the second item above: the length of the second frequency domain resource satisfies one of the following formulas:
B ₂ ≤c/(4T ₂ v _max );
B ₂ ≤ f _c Δv ₂ /(2v _max );
B ₂ ≤cΔf _d2 /(4v _max );
B ₂ ≤c/(4T ₂ |v _max |);
B ₂ ≤ f _c Δv ₂ /(2|v _max |);
B ₂ ≤ f _c Δv ₂ /(2|v _max |);

Among them, B ₂ represents the length of the second frequency domain resource, Δf _d2 represents the Doppler resolution corresponding to the second part of the resource, v _max represents the maximum speed of the sensing target, T ₂ represents the length of the second time domain resource, and Δv ₂ represents the third The velocity resolution corresponding to the two parts of the resource, c represents the speed of light; f _c represents the center frequency point;

Specifically, if the speed direction is not considered, the second frequency domain resource length satisfies B ₂ ≤c/(4T ₂ v _max ), B ₂ ≤f _c Δv ₂ /(2v _max ) or B ₂ ≤cΔf _d2 /(4v _max ); if the speed direction is considered, the second frequency domain resource length satisfies B ₂ ≤ f _c Δv ₂ /(2|v _max |) or B ₂ ≤f _c Δv ₂ /(2|v _max |).

Optionally, the first device determines resource configuration information of the sensing signal, including:

The first time domain resource interval is determined based on the maximum unambiguous speed or maximum unambiguous Doppler of the sensed target; and/or the second frequency domain resource interval is determined based on the maximum distance of the sensed target and the maximum delay of the sensed target.

For example, for monostatic radar sensing (ie, spontaneous self-receiving sensing), the first delay resource interval ΔT ₁ of the first part of the resource is related to the maximum unambiguous speed/maximum unambiguous Doppler. If the speed direction is not considered, it satisfies ΔT ₁ ≤c/(2f _c v _max ), or ΔT ₁ ≤1/(f _dmax ); if the speed direction is considered, ΔT ₁ ≤c/(4f _c |v _max |), or ΔT ₁ ≤1/( 2|f _dmax |); where v _max represents the maximum unambiguous velocity, and f _dmax represents the maximum unambiguous Doppler. When the sensing mode is the spontaneous self-retracting sensing mode, the above-mentioned maximum unambiguous speed may be the maximum unambiguous radial speed.

The second frequency domain resource interval Δf ₂ of the second part of the resources satisfies Δf ₂ ≤c/(2R _max ), or Δf ₂ ≤1/Δτ _max . Among them, R _max represents the maximum distance of sensing the target, and Δτ _max represents the maximum delay of sensing the target.

The calculation of Doppler at the receiving end needs to be based on the time domain phase change of the perceived signal, that is, 2πf _d ΔT = θ, where θ is the time domain phase change of the perceived signal at ΔT time. When the speed direction is not considered, in order to ensure that Doppler ambiguity does not occur , it is necessary to satisfy θ=2πf _d ΔT≤2π, that is, the relationship between the maximum unambiguous Doppler and the time domain interval of the perceived signal is ΔT≤1/(f _dmax ), the maximum The relationship between the unambiguous speed and the maximum unambiguous Doppler is v _max =f _dmax c/2f _c , so the relationship between the maximum unambiguous speed and the time domain interval of the perceived signal is ΔT≤c/(2f _c v _max ); when considering the speed direction , in order to ensure that Doppler ambiguity does not occur, it is necessary to satisfy θ=|2πf _d ΔT|≤π, that is, the relationship between the maximum unambiguous Doppler and the time domain interval of the perceived signal is ΔT ₁ ≤1/(2|f _dmax |), The relationship between the maximum unambiguous speed and the time domain interval of the sensing signal is ΔT ₁ ≤ c/(4f _c |v _max |).

Optionally, the resource pattern of the sensing signal corresponds to multiple transmission ports;

Among them, the resource patterns on different transmission ports are the same or different.

Optionally, when the resource patterns on different transmission ports are the same, the generation sequences of the sensing signals on different transmission ports are different, or the orthogonal cover codes corresponding to the sensing signals on different transmission ports are different.

Optionally, when the resource patterns on different transmission ports are different, the resource patterns on different transmission ports are time division multiplexed and/or frequency division multiplexed.

As a second optional implementation manner, the first device determines the resource configuration information of the sensing signal, including:

The first device determines the resource configuration information of the sensing signal based on the resource configuration indication information sent by the third device.

Optionally, the resource configuration indication information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the resource configuration indication information includes sensing signal configuration types, where different sensing signal configuration types correspond to different resource configuration information.

The third device may be a base station, a sensing network function, a sensing network element, etc.

Optionally, the method in the embodiment of this application also includes:

The first device indicates the resource configuration information of the sensing signal to the second device.

Optionally, the first device indicates the resource configuration information of the sensing signal to the second device, including:

The first device indicates a sensing signal configuration type (or sensing signal configuration identifier) to the second device, where different sensing signal configuration types correspond to different resource configuration information.

Here, the correspondence between the sensing signal configuration type and the resource configuration information may be agreed upon by the first device and the second device in advance, or may be notified by the first device to the second device in advance (for example, indicated through RRC signaling). Different types or identities of sensing signal configurations correspond to specific time-frequency domain configuration parameters, and the sensing signal configuration type or identity is indicated through layer 1 signaling).

In this embodiment of the present application, the first device may indicate the specific content of the resource configuration information (such as the above-mentioned first time domain resource length, first frequency domain resource length, second time domain resource length, and second frequency domain resource length, etc.) To the second device, only the above sensing signal configuration type may be indicated.

Optionally, the method in the embodiment of this application also includes:

Obtaining the measurement result fed back by the second device, the measurement result is obtained after the second device performs measurement processing on the sensing signal;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

In the first embodiment of the present application, in order to support simultaneous ranging and speed measurement, as shown in Figures 3, 4 and 5, a "T"-shaped or "L"-shaped or "X"-shaped resource pattern design can be used , according to the time and frequency domain resource configuration, it can be divided into two parts. The first part of the resource (Part1) is used to ensure the distance/delay resolution, and the second part of the resource (Part2) is used to ensure the speed/Doppler resolution. Part1 and Part2 The corresponding sensing signals may be partially the same (such as overlapping parts). For sensing signals using continuous resource mapping, the main configuration parameters include:

Time-frequency domain offset: including the first time domain offset (corresponding to the Part1 time domain offset), the second time domain offset (corresponding to the Part2 time domain offset), the first frequency domain offset ( Corresponding to Part1 frequency domain offset), second frequency domain offset (corresponding to Part2 frequency domain offset);

Total length of time and frequency domain resources: including the length of the first time domain resource (corresponding to the length of the Part1 time domain resource), the length of the second time domain resource (corresponding to the length of the Part2 time domain resource), and the length of the first frequency domain resource (corresponding to the length of the Part1 frequency domain resource) length), the second frequency domain resource length (corresponding to the Part2 frequency domain resource length);

Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource, and the length of the first time domain resource is less than the length of the second time domain resource. Domain resource length.

The receiving end performs distance-speed detection based on Part1, for example, using a two-dimensional FFT operation to obtain the first distance and the first speed, and performs distance-speed detection based on Part2, such as using a two-dimensional FFT operation to obtain the second distance and the second speed. Optionally, use the first distance as the target distance and the second speed as the target speed.

In particular, when Part1 only occupies one time domain resource unit, no speed/Doppler processing is performed, only distance/delay detection is performed, for example, a one-dimensional FFT operation is used to obtain the first distance; when Part2 only occupies one frequency domain resource The unit does not perform distance/delay processing, but only performs distance/delay detection. For example, a one-dimensional FFT operation is used to obtain the second speed, and the first distance is used as the target distance, and the second speed is used as the target speed to sense signal resources. The patterns are shown in Figures 6, 7 and 8.

In the second embodiment of the present application, as shown in Figure 9, the time-frequency domain of the sensing signal can adopt a discontinuous mapping method, and the time-frequency domain resource intervals of the first part of the resource Part1 and the second part of the resource Part2 can be the same, that is, with The same unambiguous sensing range can also be different. For example, the time domain resource interval of Part1 is less than or equal to the time domain resource interval of Part2, that is, Part1 can obtain a larger unambiguous speed/Doppler measurement range compared to Part2, and because Part1 The shorter time domain resource length can further save the cost of sensing signal resources; the Part2 frequency domain resource interval is less than or equal to the Part1 frequency domain resource interval, that is, Part2 can obtain a larger unambiguous distance/delay measurement range compared to Part1, and because The total length of Part2 frequency domain resources is shorter, which can further save sensing signal resource overhead. For sensing signals using discontinuous resource mapping, the main configuration parameters include:

Time-frequency domain offset: including the first time domain offset (Toffset1, corresponding to the Part1 time domain offset,), the second time domain offset (Toffset2, corresponding to the Part2 time domain offset,), the first Frequency domain offset (foffset1, corresponding to Part1 frequency domain offset), second frequency domain offset (foffset2, corresponding to Part2 frequency domain offset)

Time and frequency domain resource length: including the first time domain resource length (T1, corresponding to the Part1 time domain resource length), the second time domain resource length (T2, corresponding to the Part2 time domain resource length), the first frequency domain resource length (B1, Corresponding to the length of Part1 frequency domain resources), the total length of the second frequency domain resource (B2, corresponding to the length of Part2 frequency domain resources)

Time-frequency domain resource density/time-frequency domain resource interval: including the first time domain resource interval (ΔT ₁ , corresponding to the Part1 time domain resource interval), the second time domain resource interval (ΔT 2 , corresponding to the Part2 time domain resource interval), and the second time domain resource interval (ΔT ₂ , corresponding to the Part2 time domain resource interval). The first frequency domain resource interval (Δf ₁ , corresponding to the Part1 frequency domain resource interval), the second frequency domain resource interval (Δf ₂ , corresponding to the Part2 frequency domain resource interval);

In particular, the unambiguous distance restriction is relatively weak. Generally, the same frequency domain resource interval can be used for Part1 and Part2 to ensure equal-spaced mapping of the entire frequency domain.

The receiving end performs distance-speed detection based on Part1, for example, using a two-dimensional FFT operation to obtain the first distance and the first speed, and performs distance-speed detection based on Part2, such as using a two-dimensional FFT operation to obtain the second distance and the second speed. Optionally, the target distance is obtained based on the first distance and the second distance, and the target speed is obtained based on the first speed and the second speed.

At this time, the frequency domain resource interval of Part1 and the time domain resource interval of Part2 may not meet the requirements of the maximum unambiguous range, and the resulting ambiguity problem can be compensated by using the calculation results of the party with higher resource density but shorter resource length. Taking speed calculation as an example, the first speed calculated based on Part1 is v ₁ , the corresponding speed resolution of Part1 is Δv ₁ , and the maximum unambiguous radial speed is v _max1 ; the second speed calculated based on Part2 is v ₂ , and the corresponding speed of Part2 The resolution is Δv ₂ , And Δv ₂ <Δv ₁ , the maximum unambiguous radial velocity is v _max2 , and v _max2 < v _max1 , let This formula means searching for the value of n to minimize Δv _12. For example, when n = n _T to make Δv ₁₂ take the minimum value, then the target speed is v _T = v ₂ + n _T v _max2 , n _T means to make Δv ₁₂ the smallest The value of n for hours. For example, the speed resolution of Part1 is 5m/s, the speed resolution of Part2 is 1m/s, the maximum unblurred radial speed of Part1 is 50m/s, and the maximum unblurred radial speed of Part2 is 10m/s, that is, the time domain resource length of Part1 is Five times the length of the Part2 time domain resource, and the Part1 time domain resource interval is one-fifth of the Part2 time domain resource interval. Assume that the first speed calculated based on Part1 is 25m/s, and the first speed calculated based on Part2 is 6m/s, then the target movement speed is 26m/s.

In addition, when the time domain resource intervals of the first part of the resources and the second part of the resources are different or the frequency domain resource intervals are different, the first frequency domain resource length is greater than or equal to the second frequency domain resource length, and the first time domain resource length is less than The second time domain resource length; or, when the time domain resource intervals of the first part of the resource and the second part of the resource are different or the frequency domain resource interval is different, the first frequency domain resource length is greater than the second frequency domain resource length, the first The length of the time domain resource is less than or equal to the length of the second time domain resource.

In the embodiment of this application, for the sensing signal of the OFDM system, the frequency domain offset can be an offset at the resource element (Resource Element, RE) level or the resource block (Resource Block, RB) level; the time domain offset can be at the symbol level. , offset at the slot level or frame level; the frequency domain resource length is expressed by the total number of RE/RBs, and the time domain resource length can be expressed by the total number of symbols/time slots; frequency domain resource density (or frequency domain resource interval) It can be the number of interval REs, and the time domain resource density (or time domain resource interval) can be the number of interval symbols and the number of interval slots. Resources not occupied by sensing signals can be used for communication resource mapping (communication reference signal (RS) or data), and can also be used for sensing resource mapping of other sensing transmitters or other ports.

In the third embodiment of the present application, the sensing signal can be configured as multiple ports, and the sensing signal pattern relationship of different ports can be:

Option One:

The sensing signals of different ports use frequency division multiplexing, that is, the sensing signals of different ports are distinguished by configuring different frequency domain offsets. As shown in Figure 10, 2-port frequency division multiplexing, the frequency domain offset of the sensing signal corresponding to port 1 The amount is 0 frequency units (such as RE), the frequency domain offset of the sensing signal corresponding to port 2 is 1 frequency unit (such as RE), the resource length and resource interval of port 1 and port 2 are the same, that is, they have the same perception performance;

Alternatively, the sensing signals of different ports are time-division multiplexed, that is, the sensing signals of different ports are distinguished by configuring different time domain offsets. As shown in Figure 11, 2-port time division multiplexing, the time domain offset of the sensing signal corresponding to port 1 The amount is 0 time unit (for example, OFDM symbol), the frequency domain offset of the sensing signal corresponding to port 2 is 1 time unit (for example, OFDM symbol), the resource length and resource interval of port 1 and port 2 are the same, that is, they have the same perceived performance.

Alternatively, the sensing signals of different ports use frequency division multiplexing and time division multiplexing, that is, by configuring different frequency domain offsets and time domain offsets to distinguish the sensing signals of different ports, as shown in Figure 12, 4-port frequency division multiplexing Using and time division multiplexing, the frequency domain offset of the sensing signal corresponding to port 1 is 0 frequency units (such as RE), the time domain offset is 0 time units (such as OFDM symbols), and the frequency domain offset of the sensing signal corresponding to port 2 is The domain offset is 1 frequency unit (such as RE), and the time domain offset The shift amount is 0 time units (such as OFDM symbols), the frequency domain offset of the sensing signal corresponding to port 3 is 0 frequency units (such as RE), and the time domain offset is 1 time unit (such as OFDM symbols), The frequency domain offset of the sensing signal corresponding to port 4 is 1 frequency unit (for example, RE), the time domain offset is 1 time unit (for example, OFDM symbol), and the resources of port 1, port 2, port 3, and port 4 The length and resource interval are the same, that is, they have the same perceived performance;

Or, the time-frequency domain patterns corresponding to the sensing signals of different ports are the same, that is, they have the same time-frequency domain configuration parameters, but the sensing signal generation sequences used are different, that is, the generation parameters of the sensing signal sequence are related to the port serial number;

Alternatively, the sensing signals of different ports correspond to the same time-frequency domain patterns, that is, they have the same time-frequency domain configuration parameters and use the same sensing signal generation sequence, but use different orthogonal coverage when mapping to time-frequency domain resources. Code (Orthogonal Covering Code, OCC) distinction. For example, when 2-port sensing signal mapping uses frequency domain OCC (Frequency domain orthogonal covering code, FD-OCC), the sensing signal sequence of port 1 is c(m), which can be directly mapped to On the frequency unit (such as RE) corresponding to a specified time unit (such as OFDM symbol), the sensing signal sequence of port 2 can be c(m)*occ(m), and occ(m) is the FD-OCC sequence, which can be expressed as (1,-1,1,-1…,1,-1,1,-1), and then mapped to the same frequency unit as port 1.

Option II:

For given sensing resources, multi-port resource allocation can be performed based on the time-frequency domain pattern characteristics of the sensing signal. For example, given the overall sensing resources, the design of the 2-port sensing signal time-frequency domain pattern is shown in Figure 13 Show. For another example, given the overall sensing resources, the time-frequency domain pattern design of the 4-port sensing signal is shown in Figure 14, 15 or 16. As another example, the time-frequency domain pattern design of the 8-port sensing signal is shown in Figure 17.

The method of the embodiment of the present application proposes a non-uniform time-frequency domain pattern of the sensing signal according to the functional characteristics of ranging and speed measurement in the sensing service, and provides the corresponding configuration method and measurement and feedback process. Compared with the conventional signal The mapping method has the following benefits: it decouples the speed resolution and distance resolution, enabling high-resolution speed measurement and distance measurement at the same time; ensuring resolution while meeting the maximum unambiguous ranging/speed measurement requirements; meeting uniform sampling requirements; and enabling more accurate Flexibly allocate resources and save costs.

As shown in Figure 18, this embodiment of the present application also provides a perceptual signal processing method, including:

Step 1801: The second device receives a sensing signal. The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources. The length of the first frequency domain resource of the first part of resources is greater than The second frequency domain resource length of the second part of the resource, and the first time domain resource length of the first part of the resource are smaller than the second time domain resource length of the second part of the resource.

In this embodiment of the present application, the second device may be a terminal, a base station, a sensing network function or a sensing network element.

In this embodiment of the present application, the resources of the sensing signal received by the second device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource is such that the The second part of resources can obtain higher speed resolution or Doppler resolution than the first part of resources, so that the above-mentioned first part of resources and the second part of resources can meet the ranging and speed measurement requirements respectively, and the resource pattern of the sensing signal It is no longer a regular rectangular pattern, which can effectively save resources.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Optionally, the method in the embodiment of this application also includes:

Obtain resource configuration information of the sensing signal indicated by the first device;

Determine the resource pattern of the sensing signal according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the method in the embodiment of this application also includes:

The second device receives and measures the sensing signal, and feeds back the measurement results to the first device;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

Optionally, the second device obtains the resource configuration information of the sensing signal indicated by the first device, including:

The second device obtains a sensing signal configuration type, where different sensing signal configuration types correspond to different resource configuration information;

According to the sensing signal configuration type, the resource configuration information of the sensing signal is determined.

In this embodiment of the present application, the resources of the sensing signal received by the second device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource enables the second part of the resource to obtain a higher speed resolution or Doppler resolution than the first part of the resource, so that the above-mentioned first part of the resource and the second part of the resource can meet the ranging and speed measurement requirements respectively. Moreover, the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

It should be noted that the perception indicators in the embodiments of the present application are indicators used to indicate the quality of the perception results. For example, the perception indicators may be Signal Noise Ratio (SNR) or Signal to Interference and Noise Ratio (Signal Noise Ratio). to Interference plus Noise Ratio, SNIR).

For perception SNR, it may be the ratio of the power of the signal component associated with the perception target and the power of the noise. For perception SNIR, it may be the ratio of the power of the signal component associated with the perception target and the sum of the power of noise and interference.

Taking radar detection as an example, the power of the signal component associated with the perceived target is the echo power. The method for obtaining the echo signal power can be at least one of the following options:

Constant false alarm detection (CFAR) is performed based on the time-delay one-dimensional map obtained by fast time-dimensional FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. Echo signal power, as shown in Figure 19;

CFAR is performed based on the Doppler one-dimensional map obtained by slow-time FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude to calculate the echo signal power. As shown in Figure 19;

CFAR is performed based on the delay-Doppler two-dimensional map obtained by two-dimensional (2D)-FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. Calculate the echo signal power;

CFAR is performed based on the delay-Doppler-angle three-dimensional map obtained by 3D-FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude to calculate the echo. signal power;

In addition to the above method of determining the target signal amplitude, taking the maximum amplitude sample point of CFAR crossing the threshold as the target sample point, the method can also be to use the maximum sample point of CFAR crossing the threshold and its nearest several samples that cross the threshold. The mean value of the value points is used as the target signal amplitude to calculate the echo signal power;

The method for obtaining the SNR/SINR of the echo signal may be:

Constant false alarm detection (CFAR) is performed based on the time-delay one-dimensional map obtained by fast time-dimensional FFT processing of the echo signal. The sample point with the maximum amplitude of CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. In the one-dimensional diagram, all sample points other than ±ε sample points from the target sample point position are interference/noise sample points, and their average interference/amplitude is calculated as the interference/noise signal amplitude, as shown in Figure 19. Finally, the SNR/SINR is calculated based on the target signal amplitude and the interference/noise signal amplitude;

CFAR is performed based on the Doppler one-dimensional map obtained by slow-time FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. The distance in the one-dimensional map is All sample points other than ±n sample points at the target sample point position are interference/noise sample points, and their average amplitude is calculated as the interference/noise signal amplitude. Finally, the SNR is calculated based on the target signal amplitude and the interference/noise signal amplitude. /SINR;

The delay-Doppler two-dimensional map obtained by 2D-FFT processing of the echo signal is entered into CFAR. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. The two-dimensional map is All sample points except the ±ε (fast time dimension) and ±η (slow time dimension) sample points of the mid-range target sample points are interference/noise sample points, and their average amplitude is calculated as the interference/noise signal amplitude. , and finally calculate the SNR/SINR based on the target signal amplitude and the interference/noise signal amplitude;

CFAR is performed based on the delay-Doppler-angle three-dimensional map obtained by 3D-FFT processing of the echo signal. The sample point with the maximum amplitude of the CFAR crossing the threshold is the target sample point, and its amplitude is the target signal amplitude. The three-dimensional map is All sample points except the ±ε (fast time dimension), ±η (slow time dimension) and ±δ (angle dimension) sample points of the mid-distance target sample points are interference/noise sample points, and their averages are calculated The amplitude is the interference/noise signal amplitude, and finally the SNR/SINR is calculated based on the target signal amplitude and the interference/noise signal amplitude;

In addition to the above method of determining the target signal amplitude, taking the maximum amplitude sample point of CFAR crossing the threshold as the target sample point, the method can also be to use the maximum sample point of CFAR crossing the threshold and its nearest several samples that cross the threshold. The mean value of the value points is used as the target signal amplitude;

The method for determining the interference/noise sample points can also be to further screen based on the interference/noise sample points determined above. The screening method is: for the one-dimensional time delay diagram, remove several sample points near the time delay of 0, so as to The remaining interference/noise sample points are used as noise sample points; for the Doppler one-dimensional map, several sample points near Doppler 0 are removed, and the remaining interference/noise sample points are used as interference/noise sample points. Noise sample points; for the delay-Doppler two-dimensional diagram, remove the interference/noise sample points in the strip range composed of several points near the delay 0 and the entire Doppler range, and use the remaining noise The sample points are used as interference/noise sample points; for the delay-Doppler-angle three-dimensional diagram, the interference of the slice-like range composed of several points attached to the time dimension 0, the entire Doppler range and the entire angle range is removed/ Noise sample points, use the remaining interference/noise sample points as interference/noise sample points.

For the perceptual signal processing method provided by the embodiments of the present application, the execution subject may be a perceptual signal processing device. In the embodiment of the present application, the perceptual signal processing device performed by the perceptual signal processing method is used as an example to illustrate the perceptual signal processing device provided by the embodiment of the present application.

As shown in Figure 20, this embodiment of the present application provides a perceptual signal processing device 2000, which is applied to the first device and includes:

The first sending module 2001 is used to send sensing signals;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Optionally, the device of the embodiment of the present application also includes:

The first determination module is used to determine the resource configuration information of the sensing signal;

a second determination module, configured to determine the resource pattern of the sensing signal according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the first determination module is configured to determine the first frequency domain resource length and the second time domain resource length according to the sensing resolution.

Optionally, the first determining module includes:

The first determination sub-module is used to determine the length of the first frequency domain resource according to the distance resolution or the delay resolution;

The second determination sub-module is used to determine the second time domain resource length according to the speed resolution or Doppler resolution.

Optionally, the first frequency domain resource length satisfies the following formula:
B ₁ ≥c/(2ΔR);

Among them, B ₁ represents the length of the first frequency domain resource, c represents the speed of light, and ΔR is the distance resolution;

Alternatively, the length of the first frequency domain resource satisfies the following formula:
B ₁ ≥1/Δτ;

Among them, B ₁ represents the length of the first frequency domain resource, and Δτ represents the delay resolution.

Optionally, the second time domain resource length satisfies the following formula:
T ₂ ≥c/(2f _c Δv);

Among them, T ₂ represents the length of the second time domain resource, c represents the speed of light, Δv represents the velocity resolution, and f _c represents the center frequency point;

Alternatively, the second time domain resource length satisfies the following formula:
T ₂ ≥1/ _Δfd ;

Among them, T ₂ represents the second time domain resource length, and Δf _d represents the Doppler resolution.

Optionally, the first determining module is configured to perform at least one of the following:

Determine the first time domain resource length according to at least one of the first frequency domain resource length, the distance resolution corresponding to the first part of the resource, the delay resolution corresponding to the first part of the resource, and the maximum speed of the sensing target;

The second frequency domain resource length is determined according to at least one of the second time domain resource length, the speed resolution corresponding to the second part of the resource, the Doppler resolution corresponding to the second part of the resource, and the maximum speed of the sensing target.

Optionally, the first determination module is configured to determine the first time domain resource interval based on the maximum unambiguous speed or maximum unambiguous Doppler of the perceived target; and/or, based on the maximum distance of the perceived target and the maximum distance of the perceived target. The maximum delay determines the second frequency domain resource interval.

Optionally, the resource pattern of the sensing signal corresponds to multiple transmission ports;

Among them, the resource patterns on different transmission ports are the same or different.

Optionally, when the resource patterns on different transmission ports are the same, the generation sequences of the sensing signals on different transmission ports are different, or the orthogonal cover codes corresponding to the sensing signals on different transmission ports are different.

Optionally, when the resource patterns on different transmission ports are different, the resource patterns on different transmission ports are time division multiplexed and/or frequency division multiplexed.

Optionally, the device in the embodiment of this application also includes:

The first indication module is configured to indicate the resource configuration information of the sensing signal to the second device.

Optionally, the first indication module is configured to indicate a sensing signal configuration type to the second device, where different sensing signal configuration types correspond to different resource configuration information.

Optionally, the device of the embodiment of the present application also includes:

The first acquisition module is used to acquire the measurement results fed back by the second device, where the measurement results are obtained after the second device performs measurement processing on the sensing signal;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed , the target Doppler is calculated based on the first Doppler and the second Doppler;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

Optionally, the first determining module is configured to determine the resource configuration information of the sensing signal according to the resource configuration indication information sent by the third device.

In this embodiment of the present application, the resources of the sensing signal sent by the first device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource enables the second part of the resource to obtain a higher speed resolution or Doppler resolution than the first part of the resource, so that the above-mentioned first part of the resource and the second part of the resource can meet the ranging and speed measurement requirements respectively. Moreover, the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

As shown in Figure 21, this embodiment of the present application also provides a perceptual signal processing device 2100, which is applied to the second device, including:

The first receiving module 2101 is configured to receive a sensing signal. The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the first frequency domain resource of the first part of resources. The length is greater than the second frequency domain resource length of the second part of the resource, and the first time domain resource length of the first part of the resource is less than the second time domain resource length of the second part of the resource.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Optionally, the device of the embodiment of the present application also includes:

The second acquisition module is used to acquire the resource configuration information of the sensing signal indicated by the first device;

A third determination module, configured to determine the resource pattern of the sensing signal according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The length of the second frequency domain resource of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the device of the embodiment of the present application also includes:

A processing module, used to receive and measure the sensing signal, and feed back the measurement results to the first device;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

Optionally, the second acquisition module includes:

The acquisition submodule is used to obtain the sensing signal configuration type, where different sensing signal configuration types correspond to different resource configuration information;

The determination submodule is used to determine the resource configuration information of the sensing signal according to the sensing signal configuration type.

In this embodiment of the present application, the resources of the sensing signal received by the second device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource enables the second part of the resource to obtain a higher speed resolution or Doppler resolution than the first part of the resource, so that the above-mentioned first part of the resource and the second part of the resource can meet the ranging and speed measurement requirements respectively. Moreover, the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

The sensing signal processing device 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. For example, the terminal may include but is not limited to the types of terminal 11 listed above, Other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiments of this application.

The perceptual signal processing device provided by the embodiments of the present application can implement each process implemented by the method embodiments in Figures 2 to 19, and achieve the same technical effect. To avoid duplication, the details will not be described here.

Optionally, as shown in Figure 22, this embodiment of the present application also provides a communication device 2200, which includes a processor 2201 and a memory 2202. The memory 2202 stores programs or instructions that can be run on the processor 2201, for example. , when the communication device 2200 is a first device, when the program or instruction is executed by the processor 2201, each step of the method embodiment on the first device side is implemented, and the same technical effect can be achieved. When the communication device 2200 is a second device, when the program or instruction is executed by the processor 2201, each step of the method embodiment on the second device side is implemented, and the same technical effect can be achieved. To avoid duplication, the details will not be repeated here. .

An embodiment of the present application also provides a first device, including a processor and a communication interface, where the communication interface is used to send a sensing signal;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource. This embodiment corresponds to the above-mentioned first device-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this embodiment, and the same technical effect can be achieved.

Embodiments of the present application also provide a second device, including a processor and a communication interface. The communication interface is used to receive a sensing signal. The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources. and a second part of resources, the first frequency domain resource length of the first part of resources is greater than the second frequency domain resource length of the second part of resources, and the first time domain resource length of the first part of resources is less than the second part of resources. The second time domain resource length of some resources. This embodiment corresponds to the above-mentioned second device-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this embodiment, and the same technical effect can be achieved.

Specifically, FIG. 23 is a schematic diagram of the hardware structure of a first device or a second device (specifically, a terminal) that implements an embodiment of the present application.

The terminal 2300 includes but is not limited to: a radio frequency unit 2301, a network module 2302, an audio output unit 2303, an input unit 2304, a sensor 2305, a display unit 2306, a user input unit 2307, an interface unit 2308, a memory 2309, a processor 2310, etc. At least some parts.

Those skilled in the art can understand that the terminal 2300 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 2310 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in Figure 23 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or some components may be combined or arranged differently, which will not be described again here.

It should be understood that in this embodiment of the present application, the input unit 2304 may include a graphics processing unit (GPU) 23041 and a microphone 23042. The graphics processor 23041 is useful in video capture mode or image processing. In the image capture mode, image data of still pictures or videos obtained by an image capture device (such as a camera) is processed. The display unit 2306 may include a display panel 23061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 2307 includes at least one of a touch panel 23071 and other input devices 23072. Touch panel 23071, also known as touch screen. The touch panel 23071 may include two parts: a touch detection device and a touch controller. Other input devices 23072 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.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 2301 can transmit it to the processor 2310 for processing; in addition, the radio frequency unit 2301 can send uplink data to the network side device. Generally, the radio frequency unit 2301 includes, but is not limited to, an antenna, amplifier, transceiver, coupler, low noise amplifier, duplexer, etc.

Memory 2309 may be used to store software programs or instructions as well as various data. The memory 2309 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. Additionally, memory 2309 may include volatile memory or nonvolatile memory, or memory 2309 may include both volatile and nonvolatile memory. Among them, 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. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash 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). Memory 2309 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 2310 may include one or more processing units; optionally, the processor 2310 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 2310.

In an embodiment of the present application, the radio frequency unit 2301 is used to send sensing signals;

The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Optionally, the processor 2310 is used by the first device to determine the resource configuration information of the sensing signal;

Determine the resource pattern of the sensing signal according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the processor 2310 is configured to determine the first frequency domain resource length and the second time domain resource length according to the sensing resolution.

Optionally, the processor 2310 is configured to determine the first frequency domain resource length according to distance resolution or delay resolution;

The second time domain resource length is determined according to the velocity resolution or Doppler resolution.

Optionally, the first frequency domain resource length satisfies the following formula:
B ₁ ≥c/(2ΔR);

Among them, B ₁ represents the length of the first frequency domain resource, c represents the speed of light, and ΔR is the distance resolution;

Alternatively, the length of the first frequency domain resource satisfies the following formula:
B ₁ ≥1/Δτ;

Among them, B ₁ represents the length of the first frequency domain resource, and Δτ represents the delay resolution.

Optionally, the second time domain resource length satisfies the following formula:
T ₂ ≥c/(2f _c Δv);

Among them, T ₂ represents the length of the second time domain resource, c represents the speed of light, Δv represents the velocity resolution, and f _c represents the center frequency point;

Alternatively, the second time domain resource length satisfies the following formula:
T ₂ ≥1/ _Δfd ;

Among them, T ₂ represents the second time domain resource length, and Δf _d represents the Doppler resolution.

Optionally, the processor 2310 is configured to perform at least one of the following:

According to the length of the first frequency domain resource, the distance resolution corresponding to the first part of the resource, and the delay corresponding to the first part of the resource At least one of the resolution and the maximum speed of the perceived target determines the first time domain resource length;

The second frequency domain resource length is determined based on at least one of the second time domain resource length, the speed resolution corresponding to the second part of the resource, the Doppler resolution corresponding to the second part of the resource, and the maximum speed of the sensing target.

Optionally, the processor 2310 is configured to determine the first time domain resource interval based on the maximum unambiguous speed or maximum unambiguous Doppler of the perceived target; and/or, based on the maximum distance of the perceived target and the maximum distance of the perceived target. The maximum delay determines the second frequency domain resource interval.

Optionally, the resource pattern of the sensing signal corresponds to multiple transmission ports;

Among them, the resource patterns on different transmission ports are the same or different.

Optionally, when the resource patterns on different transmission ports are the same, the generation sequences of the sensing signals on different transmission ports are different, or the orthogonal cover codes corresponding to the sensing signals on different transmission ports are different.

Optionally, when the resource patterns on different transmission ports are different, the resource patterns on different transmission ports are time division multiplexed and/or frequency division multiplexed.

Optionally, the radio frequency unit 2301 is configured to indicate the resource configuration information of the sensing signal to the second device.

Optionally, the radio frequency unit 2301 is configured to indicate a sensing signal configuration type to the second device, where different sensing signal configuration types correspond to different resource configuration information.

Optionally, the radio frequency unit 2301 is used to obtain the measurement results fed back by the second device, where the measurement results are obtained after the second device performs measurement processing on the sensing signal;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

Optionally, the processor 2310 is configured for the first device to determine the resource configuration information of the sensing signal according to the resource configuration indication information sent by the third device.

In yet another embodiment of the present application, the radio frequency unit 2301 is configured to receive a sensing signal. The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources. The third part of resources The first frequency domain resource length of a part of the resources is greater than the second frequency domain resource length of the second part of the resources, and the first part of the resources The first time domain resource length of the source is smaller than the second time domain resource length of the second part of the resource.

Optionally, the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource interval of the second part of the resource; and/or the The second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.

Optionally, the radio frequency unit 2301 is configured to obtain the resource configuration information of the sensing signal indicated by the first device; the processor 2310 is configured to determine the first part of the resource and the second part of the resource according to the resource configuration information;

Wherein, the resource configuration information includes at least one of the following:

The length of the first time domain resource of the first part of the resource;

The length of the first frequency domain resource of the first part of the resource;

The second time domain resource length of the second part of the resource;

The second frequency domain resource length of the second part of the resource;

The first time domain resource interval of the first part of resources;

The first frequency domain resource interval of the first part of resources;

The second time domain resource interval of the second part of resources;

The second frequency domain resource interval of the second part of resources;

A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.

Optionally, the processor 2310 is used to receive and measure the sensing signal, and feed back the measurement results to the first device;

Wherein, the measurement results include at least one of the following:

a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

A first perception indicator, the first perception indicator is associated with the first part of resources;

a second perception indicator, the second perception indicator being associated with the second part of resources;

Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.

Optionally, the radio frequency unit 2301 is used to obtain the sensing signal configuration type, where different sensing signal configuration types The type corresponds to different resource configuration information; the processor 2310 is used to determine the resource configuration information of the sensing signal according to the sensing signal configuration type.

In this embodiment of the present application, the resources of the sensing signal received by the second device include a first part of the resource and a second part of the resource, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain resource of the second part of the resource. The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource. Wherein, the length of the first frequency domain resource is greater than the length of the second frequency domain resource so that the first part of the resource can obtain a higher distance resolution or delay resolution relative to the second part of the resource, and the length of the first time domain resource is shorter than the second part of the resource. The length of the time domain resource enables the second part of the resource to obtain a higher speed resolution or Doppler resolution than the first part of the resource, so that the above-mentioned first part of the resource and the second part of the resource can meet the ranging and speed measurement requirements respectively. Moreover, the resource pattern of the sensing signal is no longer a regular rectangular pattern, which can effectively save resources.

Specifically, embodiments of the present application also provide a network-side device (which may be specifically a first device or a second device). As shown in Figure 24, the network side device 2400 includes: an antenna 241, a radio frequency device 242, a baseband device 243, a processor 244 and a memory 245. The antenna 241 is connected to the radio frequency device 242. In the uplink direction, the radio frequency device 242 receives information through the antenna 241 and sends the received information to the baseband device 243 for processing. In the downlink direction, the baseband device 243 processes the information to be sent and sends it to the radio frequency device 242. The radio frequency device 242 processes the received information and then sends it out through the antenna 241.

The method performed by the first device or the second device in the above embodiments may be implemented in the baseband device 243, which includes a baseband processor.

The baseband device 243 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. 24 . One of the chips is, for example, a baseband processor, which is connected to the memory 245 through a bus interface to call the memory 245 . Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 246, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 2400 in the embodiment of the present application also includes: instructions or programs stored in the memory 245 and executable on the processor 244. The processor 244 calls the instructions or programs in the memory 245 to execute Figure 20 or Figure 21 The execution methods of each module are shown and achieve the same technical effect. To avoid repetition, they will not be described in detail here.

Specifically, embodiments of the present application also provide a network-side device (which may be specifically a first device or a second device). As shown in Figure 25, the network side device 2500 includes: a processor 2501, a network interface 2502, and a memory 2503. The network interface 2502 is, for example, a common public radio interface (CPRI).

Specifically, the network side device 2500 in the embodiment of the present application also includes: instructions or programs stored in the memory 2503 and executable on the processor 2501. The processor 2501 calls the instructions or programs in the memory 2503 to execute the instructions in Figure 20 or 21. It shows the execution method of each module and achieves the same technical effect. To avoid duplication, it will not be repeated here.

Embodiments of the present application also provide a readable storage medium. Programs or instructions are stored on the readable storage medium. When the program or instructions are executed by a processor, each process of the above embodiments of the sensory signal processing method is implemented, and can achieve The same technical effects are not repeated here to avoid repetition.

Wherein, 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 embodiments of the sensing signal processing method. Each process can achieve the same technical effect. To avoid repetition, we will not go into details here.

It should be understood that the 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 above sensing signal processing method. Each process in the example can achieve the same technical effect. To avoid repetition, we will not repeat it here.

An embodiment of the present application also provides a sensing system, including: a first device and a second device. The first device can be configured to perform the steps of the sensing signal processing method on the first device side as described above. The second device The device may be configured to perform the steps of the sensing signal processing method on the second device side as described above.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that 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. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to related technologies. 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.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims (29)

1. A perceptual signal processing method, including:

   The first device sends a sensing signal;

   The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. Domain resource length, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.
2. The method according to claim 1, wherein the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource of the second part of the resource. interval; and/or, the second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.
3. The method according to claim 1 or 2, wherein the method further includes:

   The first device determines resource configuration information of the sensing signal;

   Determine the resource pattern of the sensing signal according to the resource configuration information;

   Wherein, the resource configuration information includes at least one of the following:

   The length of the first time domain resource of the first part of the resource;

   The length of the first frequency domain resource of the first part of the resource;

   The second time domain resource length of the second part of the resource;

   The second frequency domain resource length of the second part of the resource;

   The first time domain resource interval of the first part of resources;

   The first frequency domain resource interval of the first part of resources;

   The second time domain resource interval of the second part of resources;

   The second frequency domain resource interval of the second part of resources;

   A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

   A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

   A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

   A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.
4. The method according to claim 3, wherein the first device determines resource configuration information of the sensing signal, including:

   The first device determines the first frequency domain resource length and the second time domain resource length according to the sensing resolution.
5. The method according to claim 4, wherein the first device determines the first frequency domain resource length and the second time domain resource length according to the sensing resolution, including:

   The first device determines the length of the first frequency domain resource based on distance resolution or delay resolution;

   The first device determines the second time domain resource length based on velocity resolution or Doppler resolution.
6. The method according to claim 5, wherein the first frequency domain resource length satisfies the following formula:
   B ₁ ≥c/(2ΔR);

   Among them, B ₁ represents the length of the first frequency domain resource, c represents the speed of light, and ΔR is the distance resolution;

   Alternatively, the length of the first frequency domain resource satisfies the following formula:
   B ₁ ≥1/Δτ;

   Among them, B ₁ represents the length of the first frequency domain resource, and Δτ represents the delay resolution.
7. The method according to claim 5, wherein the second time domain resource length satisfies the following formula:
   T ₂ ≥c/(2f _c Δv);

   Among them, T ₂ represents the length of the second time domain resource, c represents the speed of light, Δv represents the velocity resolution, and f _c represents the center frequency point;

   Alternatively, the second time domain resource length satisfies the following formula:
   T ₂ ≥1/ _Δfd ;

   Among them, T ₂ represents the second time domain resource length, and Δf _d represents the Doppler resolution.
8. The method according to claim 3, wherein the first device determines resource configuration information of the sensing signal, including at least one of the following:

   Determine the first time domain resource length according to at least one of the first frequency domain resource length, the distance resolution corresponding to the first part of the resource, the delay resolution corresponding to the first part of the resource, and the maximum speed of the sensing target;

   The second frequency domain resource length is determined according to at least one of the second time domain resource length, the speed resolution corresponding to the second part of the resource, the Doppler resolution corresponding to the second part of the resource, and the maximum speed of the sensing target.
9. The method according to claim 3, wherein the first device determines resource configuration information of the sensing signal, including:

   Determine the first time domain resource interval based on the maximum unambiguous speed or maximum unambiguous Doppler of the sensed target; and/or determine the second frequency domain resource interval based on the maximum distance of the sensed target and the maximum delay of the sensed target.
10. The method according to claim 1, wherein the resource pattern of the sensing signal corresponds to multiple transmission ports;

    Among them, the resource patterns on different transmission ports are the same or different.
11. The method according to claim 10, wherein when the resource patterns on different transmission ports are the same, the generation sequences of the sensing signals on different transmission ports are different, or the orthogonal cover codes corresponding to the sensing signals of different transmission ports are different.
12. The method according to claim 10, wherein when the resource patterns on different transmission ports are different, the resource patterns on different transmission ports are time division multiplexed and/or frequency division multiplexed.
13. The method of claim 3, further comprising:

    The first device indicates the resource configuration information of the sensing signal to the second device.
14. The method according to claim 13, wherein the first device indicates the resource configuration information of the sensing signal to the second device, including:

    The first device indicates a sensing signal configuration type to the second device, where different sensing signal configuration types Corresponds to different resource configuration information.
15. The method of claim 13, further comprising:

    Obtaining the measurement result fed back by the second device, the measurement result is obtained after the second device performs measurement processing on the sensing signal;

    Wherein, the measurement results include at least one of the following:

    a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

    a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

    a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

    a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

    Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

    Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

    A first perception indicator, the first perception indicator is associated with the first part of resources;

    a second perception indicator, the second perception indicator being associated with the second part of resources;

    Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.
16. The method according to claim 3, wherein the first device determines resource configuration information of the sensing signal, including:

    The first device determines the resource configuration information of the sensing signal based on the resource configuration indication information sent by the third device.
17. A perceptual signal processing method, including:

    The second device receives a sensing signal, and the characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the first frequency domain resource length of the first part of resources is greater than the length of the third part of resources. The second frequency domain resource length of the two parts of resources, the first time domain resource length of the first part of the resource is smaller than the second time domain resource length of the second part of the resource.
18. The method according to claim 17, wherein the characteristics of the resource pattern of the sensing signal further include: the first time domain resource interval of the first part of the resource is less than or equal to the second time domain resource of the second part of the resource. interval; and/or, the second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.
19. The method of claim 17, further comprising:

    Obtain resource configuration information of the sensing signal indicated by the first device;

    Determine the resource pattern of the sensing signal according to the resource configuration information;

    Wherein, the resource configuration information includes at least one of the following:

    The length of the first time domain resource of the first part of the resource;

    The length of the first frequency domain resource of the first part of the resource;

    The second time domain resource length of the second part of the resource;

    The second frequency domain resource length of the second part of the resource;

    The first time domain resource interval of the first part of resources;

    The first frequency domain resource interval of the first part of resources;

    The second time domain resource interval of the second part of resources;

    The second frequency domain resource interval of the second part of resources;

    A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

    A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

    A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

    A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.
20. The method of claim 17, further comprising:

    The second device receives and measures the sensing signal, and feeds back the measurement results to the first device;

    Wherein, the measurement results include at least one of the following:

    a first distance or a first delay, the first distance or the first delay being associated with the first part of the resources;

    a second distance or a second delay, the second distance or the second delay being associated with the second part of the resources;

    a first velocity or a first Doppler, the first velocity or the first Doppler being associated with the first portion of the resource;

    a second velocity or a second Doppler, the second velocity or the second Doppler being associated with the second part of the resource;

    Target distance or target delay, the target distance is calculated based on the first distance and the second distance, and the target delay is calculated based on the first delay and the second delay;

    Target speed or target Doppler, the target speed is calculated based on the first speed and the second speed, the target Doppler is calculated based on the first Doppler and the second Doppler Calculated by Puller;

    A first perception indicator, the first perception indicator is associated with the first part of resources;

    a second perception indicator, the second perception indicator being associated with the second part of resources;

    Joint sensing index, the joint sensing index is calculated based on the first sensing index and the second sensing index.
21. The method according to claim 19, wherein the second device obtains the resource configuration information of the sensing signal indicated by the first device, including:

    The second device obtains a sensing signal configuration type, where different sensing signal configuration types correspond to different resource configuration information;

    According to the sensing signal configuration type, the resource configuration information of the sensing signal is determined.
22. A sensing signal processing device, applied to a first device, including:

    The first sending module is used to send sensing signals;

    The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the length of the first frequency domain resource of the first part of the resource is greater than the second frequency domain of the second part of the resource. domain resources The length of the first time domain resource of the first part of the resource is less than the second time domain resource length of the second part of the resource.
23. The device according to claim 22, wherein the characteristics of the resource pattern of the sensing signal further include: a first time domain resource interval of the first part of the resource is less than or equal to a second time domain resource of the second part of the resource. interval; and/or, the second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.
24. The device according to claim 22 or 23, further comprising:

    The first determination module is used to determine the resource configuration information of the sensing signal;

    a second determination module, configured to determine the resource pattern of the sensing signal according to the resource configuration information;

    Wherein, the resource configuration information includes at least one of the following:

    The length of the first time domain resource of the first part of the resource;

    The length of the first frequency domain resource of the first part of the resource;

    The second time domain resource length of the second part of the resource;

    The second frequency domain resource length of the second part of the resource;

    The first time domain resource interval of the first part of resources;

    The first frequency domain resource interval of the first part of resources;

    The second time domain resource interval of the second part of resources;

    The second frequency domain resource interval of the second part of resources;

    A first time domain offset, which is a time domain offset corresponding to the first part of the resource;

    A second time domain offset, which is a time domain offset corresponding to the second part of the resources;

    A first frequency domain offset, which is a frequency domain offset corresponding to the first part of the resource;

    A second frequency domain offset, which is a frequency domain offset corresponding to the second part of the resources.
25. The device according to claim 24, wherein the first determining module is configured to determine the first frequency domain resource length and the second time domain resource length according to the sensing resolution.
26. A sensing signal processing device, applied to a second device, including:

    A first receiving module, configured to receive a sensing signal. The characteristics of the resource pattern of the sensing signal include: the resources of the sensing signal include a first part of resources and a second part of resources, and the first frequency domain resource length of the first part of resources. is greater than the second frequency domain resource length of the second part of the resource, and the first time domain resource length of the first part of the resource is less than the second time domain resource length of the second part of the resource.
27. The device according to claim 26, wherein the characteristics of the resource pattern of the sensing signal further include: a first time domain resource interval of the first part of the resource is less than or equal to a second time domain resource of the second part of the resource. interval; and/or, the second frequency domain resource interval of the second part of the resources is less than or equal to the first frequency domain resource interval of the first part of the resources.
28. A communication device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the implementation of any one of claims 1 to 16 is achieved. The steps of the perceptual signal processing method, or implementing the perceptual signal processing method according to any one of claims 17 to 21 steps of the law.
29. A readable storage medium that stores programs or instructions that, when executed by a processor, implement the steps of the sensory signal processing method according to any one of claims 1 to 16, or , implement the steps of the perceptual signal processing method according to any one of claims 17 to 21.