Communication method and apparatus, computer-readable storage medium, and computer program product

Abstract

A communication method and apparatus, a computer-readable storage medium, and a computer program product. The communication method comprises: a network device sends configuration information to a sensing initiator, and accordingly, the sensing initiator receives the configuration information, the configuration information being used for configuring a plurality of first resources corresponding to a first sensing reference signal, the first resources comprising first time domain resources, and the plurality of first time domain resources comprised in the plurality of first resources being distributed at equal intervals in time domain; and the sensing initiator uses the plurality of first resources to send the first sensing reference signal. In the solution of the present application, reference signal resources evenly distributed in time domain are used for sensing, which facilitates improving the accuracy of velocity estimation for a sensed target.

Description

Communication methods and apparatus, computer-readable storage media, computer program products

[0001] This application claims priority to Chinese Patent Application No. 202410695165.9, filed on May 30, 2024, entitled "Communication Method and Apparatus, Computer-Readable Storage Medium, Computer Program Product", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, specifically to a communication method and apparatus, a computer-readable storage medium, and a computer program product. Background Technology

[0003] With the release of the 5G standard, academia and industry have begun to look for the next research hotspot. Considering factors such as the smooth evolution of wireless systems, the adaptation to emerging technology applications, and the future development direction of networks, radar-communication integration, also known as integrated sensing and communication (ISAC), has gradually become one of the many hot research topics.

[0004] In the ISAC system, a reference signal is considered for sensing. For example, the velocity of the sensed target is estimated (i.e., Doppler estimation) by transmitting a reference signal. However, existing techniques for velocity estimation of sensed targets have low accuracy and are prone to spectral estimation errors. Summary of the Invention

[0005] The technical problem addressed by this application is how to improve the accuracy of velocity estimation for perceived targets.

[0006] To address the aforementioned technical problems, embodiments of this application provide a communication method, comprising: receiving configuration information, wherein the configuration information is used to configure a plurality of first resources corresponding to a first sensing reference signal, the first resources including first time-domain resources, and the plurality of first time-domain resources included in the plurality of first resources are distributed at equal intervals in the time domain; and transmitting the first sensing reference signal using the plurality of first resources.

[0007] Optionally, the start and end positions of the plurality of first time-domain resources are located in different time units.

[0008] Optionally, the first and last first time domain resources among the plurality of first time domain resources are located in different time slots.

[0009] Optionally, the first resource further includes a first frequency domain resource, wherein the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

[0010] Optionally, the configuration information includes at least one of the following: the starting position of some or all of the plurality of first time-domain resources, the ending position of some or all of the plurality of first time-domain resources, the number of the plurality of first resources, and the interval between adjacent first time-domain resources.

[0011] Optionally, the interval is an integer greater than or equal to zero.

[0012] Optionally, the starting position of the first first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the first first time domain resource is located, the ending position of the time unit in which the first first time domain resource is located, and the position between the starting position and the ending position; and / or, the ending position of the last first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the last first time domain resource is located, the ending position of the time unit in which the last first time domain resource is located, and the position between the starting position and the ending position.

[0013] Optionally, the configuration information is further used to configure a plurality of second resources corresponding to the second sensing reference signal, wherein the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in the time domain, and the start position and end position of the plurality of second resources are located in different time units, wherein the non-overlapping includes non-overlapping in the time domain and / or non-overlapping in the frequency domain.

[0014] Optionally, the second resource includes a second time-domain resource, wherein for each second time-domain resource, the second time-domain resource and any of the first time-domain resources do not overlap.

[0015] Optionally, the second resource further includes a second frequency domain resource, and the first resource further includes a first frequency domain resource. The second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource overlaps, partially overlaps, or does not overlap with the frequency domain position of any first frequency domain resource.

[0016] Optionally, the second resource includes a second time-domain resource and a second frequency-domain resource, and the first resource further includes a first frequency-domain resource. At least one second time-domain resource and at least one first time-domain resource are located in the same time-domain position, and no second frequency-domain resource and no first frequency-domain resource overlap.

[0017] Optionally, the communication method further includes: reporting sensing results, the sensing results including the moving speed of the sensing target.

[0018] To address the aforementioned technical problems, this application also provides a communication method, comprising: sending configuration information, wherein the configuration information is used to configure a plurality of first resources corresponding to a first sensing reference signal, the first resources including first time-domain resources, and the plurality of first time-domain resources included in the plurality of first resources are distributed at equal intervals in the time domain.

[0019] Optionally, the start and end positions of the plurality of first time-domain resources are located in different time units.

[0020] Optionally, the first and last first time domain resources among the plurality of first time domain resources are located in different time slots.

[0021] Optionally, the first resource further includes a first frequency domain resource, wherein the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

[0022] Optionally, the configuration information includes at least one of the following: the starting position of some or all of the plurality of first time-domain resources, the ending position of some or all of the plurality of first time-domain resources, the number of the plurality of first resources, and the interval between adjacent first time-domain resources.

[0023] Optionally, the interval is an integer greater than or equal to zero.

[0024] Optionally, the starting position of the first first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the first first time domain resource is located, the ending position of the time unit in which the first first time domain resource is located, and the position between the starting position and the ending position; and / or, the ending position of the last first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the last first time domain resource is located, the ending position of the time unit in which the last first time domain resource is located, and the position between the starting position and the ending position.

[0025] Optionally, the configuration information is further used to configure a plurality of second resources corresponding to the second sensing reference signal, wherein the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in the time domain, and the start position and end position of the plurality of second resources are located in different time units, wherein the non-overlapping includes non-overlapping in the time domain and / or non-overlapping in the frequency domain.

[0026] Optionally, the second resource includes a second time-domain resource, wherein for each second time-domain resource, the second time-domain resource and any of the first time-domain resources do not overlap.

[0027] Optionally, the second resource further includes a second frequency domain resource, and the first resource further includes a first frequency domain resource. The second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource overlaps, partially overlaps, or does not overlap with the frequency domain position of any first frequency domain resource.

[0028] Optionally, the second resource includes a second time-domain resource and a second frequency-domain resource, and the first resource further includes a first frequency-domain resource. At least one second time-domain resource and at least one first time-domain resource are located in the same time-domain position, and no second frequency-domain resource and no first frequency-domain resource overlap.

[0029] Optionally, the communication method further includes: receiving sensing results, the sensing results including the moving speed of the sensing target.

[0030] To address the aforementioned technical problems, this application also provides a communication device, comprising: a receiving module for receiving configuration information, the configuration information being used to configure a plurality of first resources corresponding to a first sensing reference signal, the first resources including first time-domain resources, the plurality of first time-domain resources being equally spaced in the time domain; and a transmitting module for transmitting the first sensing reference signal using the plurality of first resources.

[0031] To address the aforementioned technical problems, this application also provides a communication device, comprising: a transmitting module for transmitting configuration information, wherein the configuration information is used to configure a plurality of first resources corresponding to a first sensing reference signal, the first resources including first time-domain resources, and the plurality of first time-domain resources included in the plurality of first resources are distributed at equal intervals in the time domain.

[0032] To address the aforementioned technical problems, embodiments of this application also provide a computer-readable storage medium, which is a non-volatile or non-transient storage medium storing a computer program thereon. When the computer program is run by a processor, it executes the steps of the above-described method.

[0033] To address the aforementioned technical problems, this application also provides a computer program product, including a computer program / instructions, which, when executed by a processor, implement the steps of the above-described method.

[0034] To address the aforementioned technical problems, this application also provides a communication device, including a memory and a processor. The memory stores a computer program that can run on the processor, and the processor executes the steps of the above-described method when running the computer program.

[0035] To address the aforementioned technical problems, embodiments of this application also provide a communication system, including a network device and a terminal for performing the above-described methods.

[0036] To address the aforementioned technical problems, this application also provides a chip (or communication device) storing a computer program, which, when executed by the chip, implements the steps of the above-described method.

[0037] To address the aforementioned technical problems, this application also provides a chip system comprising at least one processor and an interface circuit, wherein the interface circuit and the at least one processor are interconnected via a circuit, and the at least one processor is used to execute instructions to perform the aforementioned method.

[0038] Compared with the prior art, the technical solution of this application embodiment has the following beneficial effects:

[0039] This application provides a communication method, including: a network device sending configuration information to a sensing initiator; correspondingly, the sensing initiator receiving the configuration information; the configuration information being used to configure a plurality of first resources corresponding to a first sensing reference signal; the first resources including first time-domain resources; the plurality of first time-domain resources being distributed at equal intervals in the time domain; and the sensing initiator using the plurality of first resources to send the first sensing reference signal.

[0040] In existing technologies, the temporal resources of reference signals are randomly allocated, which cannot guarantee a uniform distribution of these resources for sensing, thus affecting the accuracy of velocity estimation for the sensed target. In contrast, this implementation defines new reference signal resources for 6G ISAC systems, which occupy equally spaced reference signal resources in the time domain (i.e., first resources). These first resources are more suitable for high-precision velocity estimation in sensing. Therefore, using multiple uniformly distributed first resources for sensing can improve the accuracy of velocity estimation for the sensed target.

[0041] Furthermore, the start and end positions of the plurality of first time-domain resources are located in different time units. Compared with the existing NR system, which cannot allocate resources across time units (e.g., time slots) in the time domain, the scheme of this application can allocate resources across time units, making the allocation of reference signal resources used for sensing more flexible and conducive to improving resource utilization. Attached Figure Description

[0042] Figure 1 is a schematic diagram of velocity estimation based on a uniformly distributed sensing symbol spectrum provided in this application;

[0043] Figure 2 is a schematic diagram of velocity estimation based on a non-uniformly distributed sensing symbol spectrum provided in this application;

[0044] Figure 3 is a signaling interaction diagram of a communication method according to an embodiment of this application;

[0045] Figure 4 is a schematic diagram of a typical application scenario of an embodiment of the present invention;

[0046] Figure 5 is a schematic diagram of another typical application scenario of the present invention;

[0047] Figure 6 is a schematic diagram of another typical application scenario of the present invention;

[0048] Figure 7 is a schematic diagram of another typical application scenario of the present invention;

[0049] Figure 8 is a schematic diagram of another typical application scenario of the present invention;

[0050] Figure 9 is a schematic diagram of another typical application scenario of the present invention;

[0051] Figure 10 is a schematic diagram of another typical application scenario of the present invention;

[0052] Figure 11 is a schematic diagram of another typical application scenario of the present invention;

[0053] Figure 12 is a schematic diagram of the structure of a communication device according to an embodiment of this application;

[0054] Figure 13 is a schematic diagram of another communication device according to an embodiment of this application;

[0055] Figure 14 is a signaling interaction diagram of another communication method according to an embodiment of this application. Detailed Implementation

[0056] As mentioned in the background section, existing technologies have defects in the time-domain resource allocation of reference signals, resulting in low accuracy in velocity estimation of sensed targets and easy errors in spectral estimation.

[0057] Specifically, in existing New Radio (NR), the time-domain resources of reference signals are usually randomly allocated and cannot be guaranteed to be uniformly distributed in the time domain. Uniform speed sensing refers to using uniformly distributed Orthogonal Frequency Division Multiplexing (OFDM) symbols (abbreviated as symbols) to transmit reference signals for speed sensing. The bitmap of the uniformly distributed symbols can be, for example, Bitmap = [1 ... Non-uniform speed sensing refers to using reference signals transmitted with symbols that are not uniformly distributed in the time domain for speed sensing. The bitmap of these non-uniformly distributed symbols can be, for example, Bitmap = [1 1 1 1 1 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1]. Here, 1 indicates that the symbol's resources are allocated for sensing, and 0 indicates that the symbol's resources are not allocated for sensing. Currently, due to the randomness of the time-domain resource allocation of the reference signal, the bitmap configured for the sensing initiator is mostly non-uniformly distributed.

[0058] However, if the inter-symbol spacing allocated to the sensing initiator for transmitting reference signals is unequal, it may cause errors in spectral estimation.

[0059] Figure 1a shows a uniformly distributed sensing symbol spectrum, where all symbols used to transmit reference signals are equally spaced. Figure 1b shows the velocity estimate obtained from sensing a target with a velocity of 20 m / s based on the sensing symbol spectrum in Figure 1a. Referring to Figure 1b, the horizontal axis represents distance (range), with larger values ​​indicating greater distance from the sensing initiator, and the vertical axis represents velocity (m / s). The sensing power (or simply power) at the corresponding distance-velocity position in the figure is determined by the color of the sensing power spectrum on the right; the redder the color, the higher the power.

[0060] Figure 2a shows a non-uniformly distributed sensing symbol spectrum, where the intervals between symbols used to transmit the reference signal are unequal. Figure 2b shows the velocity estimate obtained from sensing a target with a velocity of 20 m / s based on the sensing symbol spectrum in Figure 2a. Comparing Figure 1b and Figure 2b, it is clear that applying non-uniform time-domain symbols for sensing yields an incorrect velocity estimate (Figure 1b indicates an estimated target velocity of 20 m / s, while Figure 2b indicates an estimated target velocity of 10 m / s).

[0061] If sensing is to be performed based on the current NR reference signal resources, the resource allocation method must be limited, for example, requiring resources within the same resource set to have the same time interval. However, such allocation will cause the following problems:

[0062] 1. For scenarios that require multiple consecutive sensing symbols, this will consume too many reference signal resources. For example, for Channel State Information-Reference Signal (CSI-RS), if 56 resources are configured for sensing, the resources left for communication will be significantly reduced.

[0063] 2. Since the number of resource sets of different reference signal resources is limited, if these resources are multiplexed for communication and sensing at the same time, and sensing has special requirements for resources (e.g., the requirement of equal intervals in the time domain), it may also cause a decrease in communication performance. This is because some services do not need equally spaced resources when communicating, and even using equally spaced resources may cause a decrease in communication performance.

[0064] To address the aforementioned technical problems, this application provides a communication method, comprising: a network device sending configuration information to a sensing initiator; correspondingly, the sensing initiator receiving the configuration information; the configuration information being used to configure a plurality of first resources corresponding to a first sensing reference signal; the first resources including first time-domain resources; the plurality of first time-domain resources being distributed at equal intervals in the time domain; and the sensing initiator using the plurality of first resources to send the first sensing reference signal.

[0065] This implementation defines new reference signal resources for 6G ISAC systems, which occupy equally spaced reference signal resources in the time domain (i.e., first resources). These first resources are more suitable for high-precision velocity estimation in sensing. Therefore, using multiple uniformly distributed first resources for sensing can improve the accuracy of velocity estimation of the sensed target.

[0066] In this embodiment, a time-domain resource refers to a resource in the time domain, such as the first time-domain resource or the second time-domain resource hereinafter. The length of a time-domain resource can be one symbol or multiple consecutive symbols. The time-domain position of a time-domain resource refers to the symbol occupied by the time-domain resource. The starting position of a time-domain resource (also called the initial time-domain position) refers to the starting position of the symbol occupied by the time-domain resource. The ending position of a time-domain resource (also called the ending time-domain position) refers to the ending position of the symbol occupied by the time-domain resource.

[0067] To make the above-mentioned objectives, features and beneficial effects of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0068] Figure 3 is a signaling interaction diagram of a communication method according to an embodiment of this application (referred to as Embodiment 1).

[0069] This implementation scheme can be applied to sensing scenarios in ISAC systems. In these scenarios, sensing nodes, acting as sensing initiators, send sensing reference signals, while sensing nodes, acting as sensing responders, receive echo signals (the signals generated after the sensing reference signals act on the sensing target) and process them using sensing algorithms. The processed sensing results can be reported to the base station or sensing function (SF) via the uplink channel, or used by the sensing node receiving the echo signals, or by other terminals. The sensing function can be a network element in the core network. Sensing nodes can be terminals or network devices.

[0070] In mono-static sensing mode, the sensing initiator and the sensing receiver are the same sensing node; that is, the sensing node itself sends sensing signals and receives echo signals. Sensing types using mono-static sensing mode can include terminal-initiated and network-device-initiated sensing.

[0071] In bi-static sensing mode, the sensing initiator and sensing receiver can be different sensing nodes; that is, sensing node A sends a sensing signal, and sensing node B receives the echo signal. Sensing types using bi-static sensing mode can include: network device sending and terminal receiving, network device A sending and network device B receiving, terminal sending and network device receiving, and terminal A sending and terminal B receiving. For ease of description, this embodiment refers to the sensing initiator as A and the sensing receiver as B. In some embodiments, for the A-to-B-to-sensing method, A can also receive the echo signal; that is, the sensing initiator can perform both bi-static and mono-static sensing modes simultaneously. This embodiment mainly describes the interaction between the terminal acting as a sensing node and the network device configuring the terminal to perform sensing operations (i.e., the network device in step S101 below). The terminal can be a sensing node in mono-static sensing mode or a sensing node in bi-static sensing mode.

[0072] In the first scenario, the sensing initiator can be a terminal. In this case, the network device in step S101 below can be a core network element or a base station. The terminal shown in the embodiment related to Figure 3 interacts with the network device as the sensing initiator.

[0073] In the second scenario, the network device sending the configuration information is designated as the first network device, and the sensing initiator can also be a network device (designated as the second network device). In one scenario, the first network device can be a core network element, and the second network device can be a base station. In another scenario, the first network device can be a functional module within a network device, and the second network device can be another functional module within that network device. For example, the first network device might be the Access and Mobility Management Function (AMF) module, and the second network device might be the sensing function module. In yet another scenario, the first and second network devices can be the same functional module within the same network device; in this case, the interaction between the first and second network devices can be omitted. The configuration information can be considered known information to the sensing initiator.

[0074] In the second case, the configuration information still needs to be sent (e.g., by the first network device) to the terminal acting as the sensing receiver to ensure that the sensing receiver receives the sensing reference signal at the correct time-frequency location, as shown in Figure 14.

[0075] The first scenario will now be explained in detail.

[0076] In a specific embodiment, in the communication method provided by steps S101 to S102 below, the steps implemented by the terminal can be executed by a chip with communication function in the terminal or by a baseband chip in the terminal; the steps implemented by the network device can be executed by a chip with communication function in the network device or by a baseband chip in the network device.

[0077] Specifically, referring to Figure 3, the communication method described in this embodiment may include the following steps:

[0078] In step S101, the network device sends configuration information to the terminal. Correspondingly, the terminal receives the configuration information.

[0079] Specifically, the configuration information is used to configure multiple first resources corresponding to the first sensing reference signal. For each first resource, the first resource includes a first time-domain resource. Correspondingly, the multiple first resources include multiple first time-domain resources, and the multiple first time-domain resources are distributed at equal intervals in the time domain. Each of the multiple first time-domain resources corresponds one-to-one with the multiple first resources. Taking a single first resource as an example, the first resource includes time-frequency domain resources, or is defined by time-frequency domain resources. The time-domain resources of the first resource can be called first time-domain resources (or can be called: the first time-domain resource of the first resource, or the first time-domain resource corresponding to the first resource, or the first time-domain resource included in the first resource), and the frequency-domain resources of the first resource can be called first frequency-domain resources (or can be called: the first frequency-domain resource of the first resource, or the first frequency-domain resource corresponding to the first resource, or the first frequency-domain resource included in the first resource).

[0080] The interval between two consecutive first time-domain resources refers to the interval between the first time-domain resource that comes first (denoted as first time-domain resource 1) and the first time-domain resource that comes after first time-domain resource 1 (denoted as first time-domain resource 2). There are no other first time-domain resources between first time-domain resource 1 and first time-domain resource 2. In other words, first time-domain resource 1 and first time-domain resource 2 are two adjacent first time-domain resources.

[0081] Case 1: The interval between two consecutive first time domain resources is denoted as interval Y. Specifically, it refers to the interval between the end position of first time domain resource 1 and the end position of first time domain resource 2, or the interval between the start position of first time domain resource 1 and the start position of first time domain resource 2.

[0082] Case 2: The interval between two consecutive first time domain resources is denoted as interval X, which specifically refers to the interval between the end position of first time domain resource 1 and the start position of first time domain resource 2.

[0083] Furthermore, the sensing reference signal refers to the reference signal (RS) used for sensing. Examples include the Channel State Information-Reference Signal (CSI-RS), the Positioning Reference Signal (PRS), and the Sounding Reference Signal (SRS).

[0084] The first sensing reference signal is a specific sensing reference signal configured for the terminal, such as a specific sequence of CSI-RS. The terminal uses multiple first resources corresponding to the first sensing reference signal to transmit the first sensing reference signal.

[0085] In one specific embodiment, the configuration information may include at least one of the following: the start position of some or all of the first time-domain resources in a plurality of first time-domain resources, the end position of some or all of the first time-domain resources in a plurality of first time-domain resources, the number of the plurality of first resources, the interval between adjacent first time-domain resources (e.g., interval X or interval Y), and the time-domain length between the start position and the end position of the plurality of first time-domain resources (i.e., the time-domain length between the start position of the first first time-domain resource in a plurality of first time-domain resources and the end position of the last first time-domain resource in a plurality of first time-domain resources).

[0086] In one example (denoted as Example 1), the configuration information may include: the start or end position of the first or last first time domain resource among multiple first time domain resources, the number of multiple first resources, and the interval between adjacent first time domain resources.

[0087] In one example (denoted as Example 2), the configuration information may include the start or end position of all first time domain resources among multiple first time domain resources.

[0088] In one example (denoted as Example 3), the configuration information may include: the start or end position of the first or last first time domain resource among multiple first time domain resources, the number of multiple first resources, and the time domain length between the start and end positions of the multiple first time domain resources. In this example, the interval between adjacent first time domain resources can be determined by calculation.

[0089] In another specific embodiment, the configuration information may include at least one of the following: the time domain position of some or all of the first time domain resources in a plurality of first time domain resources, the number of the plurality of first resources, the interval between adjacent first time domain resources, and the time domain length between the start position and the end position of the plurality of first time domain resources.

[0090] In one example (referred to as Example 4), the configuration information may include: the time domain location of the first or last first time domain resource among multiple first time domain resources, the number of multiple first resources, and the interval between adjacent first time domain resources.

[0091] In one example (denoted as Example 5), the configuration information may include the time domain location of all first time domain resources among multiple first time domain resources.

[0092] In one example (denoted as Example 6), the configuration information may include: the time-domain position of the first or last first time-domain resource among multiple first time-domain resources, the number of multiple first resources, and the time-domain length between the start and end positions of the multiple first time-domain resources. In this example, the interval between adjacent first time-domain resources can be determined by calculation.

[0093] In Examples 4 to 6, the granularity of the first time-domain resource configuration is the smallest unit for data scheduling in the time domain, such as a symbol. For example, for any first time-domain resource, the time-domain position of the first time-domain resource configured in the configuration information can be the index of the symbol occupied by that first time-domain resource.

[0094] Examples 1 to 6 above are merely some possible implementations of the configuration information. In actual implementation, the configuration information may include other information, such as the start or end position or time domain position of some of the multiple first time domain resources, the number of multiple first resources, the interval between adjacent first time domain resources, and one or more of the time domain lengths between the start and end positions of the multiple first time domain resources, thereby indicating the distribution of the multiple first time domain resources in the time domain. This application does not impose any limitations. Furthermore, the configuration information in these examples may include other information besides the information shown above, and this application does not impose any limitations. For example, the number of multiple first time domain resources may also be included in Example 2.

[0095] Taking the granularity of the first time-domain resource configuration as a symbol, and each first time-domain resource occupying one symbol as an example, multiple first time-domain resources are described as multiple symbols. Compared to existing resource allocations that are completely random and therefore require the configuration information to indicate the time-domain position of each symbol, the multiple symbols used to transmit the first sensing reference signal in this implementation are evenly distributed. Therefore, when the configuration information is as shown in Examples 1, 3, 4, or 6 above, the time-domain position of multiple symbols can be indicated. This helps to reduce signaling overhead.

[0096] In one specific embodiment, the interval Y is an integer greater than or equal to the length of the first time-domain resource. For example, when the interval Y is equal to 1 symbol, it indicates that multiple first time-domain resources are continuously distributed in the time domain. When the interval Y is 2 or more symbols, it indicates that multiple first time-domain resources are discontinuously and uniformly distributed in the time domain.

[0097] In one specific embodiment, the interval X is an integer greater than or equal to zero. Specifically, an interval X = 0 means that the multiple first time-domain resources are continuously distributed in the time domain. An interval X being a positive integer means that the multiple first time-domain resources are uniformly distributed but not continuously in the time domain.

[0098] The specific indication methods for interval X and interval Y can be similar. The following will take the indication of interval X as an example for specific explanation.

[0099] In some embodiments, the configuration information can directly indicate the specific value of the interval X, where the interval X is an integer greater than or equal to zero.

[0100] In some embodiments, the configuration information may first use one bit to indicate whether two consecutive first time-domain resources among a plurality of first time-domain resources are consecutive or spaced apart; that is, a bit value of 0 indicates X = 0, and a bit value of 1 indicates X ≠ 0. Further, the configuration information also indicates the position (i.e., the starting position) of the first first time-domain resource among the plurality of first time-domain resources, and the total number of the plurality of first time-domain resources. If the aforementioned one bit value is 1, the configuration information further indicates the interval X (in this case, the interval X is a positive integer).

[0101] In a typical application scenario, referring to Figure 4, the first row represents the total resources available for network devices to configure in the time domain, which can be divided into resources for communication (denoted as comm) and resources for sensing (denoted as sensing) in the time domain.

[0102] Resources used for communication may include, for example, time-domain resources for transmitting data, time-domain resources for transmitting the Physical Uplink Control Channel (PUCCH), and time-domain resources for transmitting the Physical Downlink Shared Channel (PDSCH).

[0103] The resources used for sensing (also known as total sensing resources) may include time-domain resources used for actual sensing (also known as sensing reference signal resources, such as first time-domain resources and second time-domain resources mentioned below), and may also include service time-domain resources (such as service symbols) for establishing links between terminals and network devices.

[0104] In this application scenario, resources used for communication and resources used for sensing are time-division multiplexed. For example, if the total resources are tens of milliseconds (ms), n (n>0) time slots are allocated to the resources used for sensing. This ensures that the allocation method of uniformly distributing the resources used for sensing in the time domain does not affect communication performance.

[0105] Referring again to Figure 4, the second row exemplifies the specific configuration of various resources within the total sensing resources. Specifically, sensing reference signal resources can occupy a portion of the total sensing resources.

[0106] For example, total sensing resources occupy time slots 0 to N, of which time slots 1 to n are configured to transmit sensing reference signals, i.e., time slots 1 to n are sensing reference signal resources. The remaining time slots, such as time slot 0, time slot n+1 to time slot N, can be configured to establish links between the terminal and the base station.

[0107] Furthermore, when configuring resources in time slots 1 to n, it is required that the symbols of time-domain resources allocated to the same sensing reference signal be equally spaced, and the interval X can be 0 or not 0.

[0108] Referring again to Figure 4, the third row exemplifies the specific configuration of the sensing reference signal resources. There are a total of n×14 symbols in the sensing reference signal resources. Assume there are m first time-domain resources (m is a positive integer), with an interval X between consecutive first time-domain resources. The starting position of the multiple first time-domain resources is located at the beginning of time slot 1, and the ending position of the multiple first time-domain resources is located at the end of time slot n. The specific symbol positions occupied by the m first time-domain resources (denoted as first time-domain resource 1 to first time-domain resource m) are shown in the third row of Figure 4.

[0109] In one specific embodiment, the start and end positions of multiple first time-domain resources can be located in different time units.

[0110] Specifically, a time unit refers to the next higher level of time-domain granularity in terms of time-domain resource allocation. For example, if the time-domain granularity of the first time-domain resource is symbolic, then the time unit refers to a time slot.

[0111] In other words, the time domain position (i.e. the symbol it occupies) of the first first time domain resource and the time domain position of the last first time domain resource can be located in different time slots.

[0112] In some embodiments, the starting position of the first first time domain resource can be the starting position of the time unit in which the first first time domain resource is located, or the ending position of the first first time domain resource can be the ending position of the time unit in which the first first time domain resource is located; and / or, the ending position of the last first time domain resource can be the starting position of the time unit in which the last first time domain resource is located, or the ending position of the last first time domain resource can be the ending position of the time unit in which the last first time domain resource is located.

[0113] For example, continuing to refer to Figure 4, the first first time domain resource among multiple first time domain resources is located at symbol 0 of time slot 1, and the last first time domain resource is located at symbol 13 of time slot n. That is, the starting position of the first first time domain resource is the starting position of the time unit in which the first first time domain resource is located, and the ending position of the last first time domain resource is the ending position of the time unit in which the last first time domain resource is located.

[0114] In practical applications, some or all of the multiple first time domain resources can be located in the same time unit. For example, the first and last first time domain resources can be located in the same time unit (e.g., the same time slot). Network devices can flexibly determine the location of the configured multiple first time domain resources based on factors such as the actual network communication load.

[0115] In one specific embodiment, the first resource further includes a first frequency domain resource, and the first frequency domain resource and the first time domain resource together define the first resource.

[0116] Specifically, the first frequency domain resources of multiple first resources are located at the same frequency domain position. In other words, the first frequency domain resources of each first resource are located at the same frequency domain position. For example, referring to Figure 4, the first frequency domain resource A1 corresponding to the first time domain resource 1 includes subcarrier 1, subcarrier 2, subcarriers 6 to 9, and subcarriers 12 to 13. Similarly, the first frequency domain resource A1 corresponding to the first time domain resource 2 also includes subcarrier 1, subcarrier 2, subcarriers 6 to 9, and subcarriers 12 to 13, ..., and the first frequency domain resource A1 corresponding to the first time domain resource m also includes subcarrier 1, subcarrier 2, subcarriers 6 to 9, and subcarriers 12 to 13.

[0117] In other words, a sensing reference signal (i.e., the first sensing reference signal) corresponds to multiple resources (i.e., the first resource), which include multiple equally spaced time-domain resources (e.g., symbols) in the time domain and one or more frequency-domain units (e.g., subcarriers) in the frequency domain. For each time-domain resource, the time-domain resource and the one or more frequency-domain units together define one resource.

[0118] Therefore, having multiple first frequency domain resources in the same location is beneficial for ensuring velocity measurement performance. Specifically, the principle of velocity estimation through sensing is that the movement of the sensed target will cause a phase difference between different symbols, and the moving velocity of the sensed target can be estimated based on this phase difference. However, the phase difference requires that the two symbols occupy the same frequency domain; otherwise, velocity measurement cannot be correctly sensed. Therefore, continuing to refer to the fourth row of Figure 4, the first frequency domain resources A1 corresponding to each of the m first time domain resources are distributed in the same position in the frequency domain.

[0119] In some embodiments, the first frequency domain resource may include a plurality of first frequency domain elements, which may be equally spaced in the frequency domain. Each first frequency domain element may be a subcarrier.

[0120] In some embodiments, the configuration information may also indicate the frequency domain location of the first frequency domain resource corresponding to each first time domain resource.

[0121] In some embodiments, the configuration information may include resource type indication information, which indicates that the resources configured this time are used for sensing.

[0122] In some embodiments, in response to the configuration information indicating interval X or interval Y, or the configuration information indicating that the resources configured this time are distributed at equal intervals in the time domain, the terminal can determine that the resources configured by the configuration information are used for sensing.

[0123] In one specific embodiment, continuing to refer to FIG3, the communication method described in this embodiment may further include:

[0124] In step S102, the terminal uses multiple first resources to send a first sensing reference signal.

[0125] Since multiple first resources are evenly distributed in the time domain, the first sensing reference signal transmitted using multiple first resources can also be understood as being transmitted uniformly in the time domain. Furthermore, a single first sensing reference signal can also occupy more than one time unit (e.g., a time slot) of first time domain resources (e.g., a symbol) for transmission. Here, "more than" means that the transmission duration of the first sensing reference signal is longer than the length of a single time slot; that is, the first resources used to transmit the first sensing reference signal are distributed across multiple time slots. This is beneficial for more accurate velocity estimation of the sensing target during sensing, because under the same frequency domain resources and the same transmission power, a longer sensing time results in higher sensing resolution and higher accuracy.

[0126] In one specific embodiment, the starting position of the first first time-domain resource can be located between the starting and ending positions of the time unit in which the first first time-domain resource is located. Similarly, the ending position of the last first time-domain resource can be located between the starting and ending positions of the time unit in which the last first time-domain resource is located.

[0127] In other words, in this implementation scheme, the starting position of the first time-domain resource can be located at any position within a time slot, and the ending position of the last time-domain resource can be located at any position within a time slot. Furthermore, the first and last time-domain resources can be located in the same or different time slots. This allows for more flexible configuration of the sensing reference signal resources.

[0128] For example, referring to Figure 5, the time domain position of the first first time domain resource can be located in the middle of a time slot (e.g., symbol 5 of time slot 1). Furthermore, the starting position of the first first time domain resource can be located at the starting position of symbol 5 of time slot 1. Again, referring to Figure 5, the time domain position of the last first time domain resource can be located at symbol 13 of time slot n. Furthermore, the ending position of the last first time domain resource can be located at the ending position of symbol 13 of time slot n. Furthermore, multiple first time domain resources can be allocated at equal intervals. When the interval X is 0, symbols 5 to 13 of time slot 1 are all first time domain resources. When the interval X is not 0, a portion of symbols 5 to 13 of time slot 1 can be configured as first time domain resources, and the remaining portion can be configured as second time domain resources as described below.

[0129] For example, referring to Figure 6, the starting position of the sensing reference signal resource (i.e., the starting position of the first first time-domain resource) can be located at the starting position of symbol 0 in time slot 1, and the ending position of the sensing reference signal resource (i.e., the ending position of the last first time-domain resource) can be located in the middle of a time slot (e.g., the ending position of symbol 10 in time slot n). Furthermore, the multiple first time-domain resources included in the sensing reference signal resource can be allocated at equal intervals. When the interval X is 0, symbols 0 to 10 in time slot n are all first time-domain resources. When the interval X is not 0, a portion of symbols 0 to 10 in time slot n can be configured as first time-domain resources, and the remaining portion can, for example, be configured as second time-domain resources as described below.

[0130] For example, the starting position of the sensing reference signal resource can be located at the starting position of symbol 6 in time slot 1, and the ending position can be located at the ending position of symbol 12 in time slot n.

[0131] In a typical application scenario, assume that the time domain span of multiple first-domain resources is n time slots and k symbols, meaning the total length of the multiple first-domain resources in the time domain is n×14+k symbols. The number of multiple first-domain resources is m symbols, and the interval between two consecutive first-domain resources is a fixed x symbols.

[0132] When configuring multiple first time domain resources, network devices need to meet the following conditions: k≥0; m≤(n×14+k), the equality holds when k=0; m×(x+1)=n×14+k.

[0133] For example, Figure 7 exemplarily shows the configuration pattern of m first time-domain resources when x = 0, and Figure 8 exemplarily shows the configuration pattern of m first time-domain resources when x > 0 (e.g., x = 2 symbols). In Figure 8, a "0" indicates that the time-domain resource at that position is not configured for the first sensing reference signal.

[0134] In one specific embodiment, the configuration information can also be used to configure multiple second resources corresponding to the second sensing reference signal.

[0135] The second sensing reference signal is a sensing reference signal that is distinct from the first sensing reference signal. For example, the first sensing reference signal is CSI-RS, and the second sensing reference signal is PRS. Alternatively, the first and second sensing reference signals may be CSI-RS sequences of different durations.

[0136] The second resource can be understood as a resource similar to the first resource in function and structure, the difference being that their corresponding sensing reference signals are different. Therefore, for the definition and specific configuration of the second resource, please refer to the relevant description of the first resource in the above embodiments. The second resource in the time domain is the second time-domain resource, and for the definition and specific configuration of the second time-domain resource, please refer to the relevant description of the first time-domain resource in the above embodiments. The second resource in the frequency domain is the second frequency-domain resource, and for the definition and specific configuration of the second frequency-domain resource, please refer to the relevant description of the first frequency-domain resource in the above embodiments.

[0137] Furthermore, the second resource and the first resource do not overlap, and this non-overlap includes non-overlap in the time domain and / or non-overlap in the frequency domain.

[0138] Furthermore, similar to the first resource, multiple second resources are distributed at equal intervals in the time domain. For example, for each second resource, the second resource includes a second time domain resource and a second frequency domain resource corresponding to the second time domain resource. The multiple second time domain resources included in the multiple second resources are uniformly distributed in the time domain, and the second frequency domain resources of the multiple second resources are located at the same frequency domain position.

[0139] Furthermore, the start and end positions of multiple second resources can be located in different time units. For example, the first and last second time-domain resources among multiple second time-domain resources can be located in different time slots. Of course, in practical applications, the start and end positions of multiple second time-domain resources can also be configured in the same time slot.

[0140] In one specific embodiment, in step S102, the terminal, acting as the sensing transmitter, can use multiple first resources to transmit a first sensing reference signal, and use multiple second resources to transmit a second sensing reference signal.

[0141] Furthermore, the sensing receiver can determine the moving speed of the sensed target by combining the sensing results of the first sensing reference signal and the sensing results of the second sensing reference signal. For example, the moving speed of the sensed target can be obtained by averaging the two sensing results.

[0142] In one specific embodiment, for each second time-domain resource, the second time-domain resource and any first time-domain resource do not overlap. In other words, the first and second resources time-division multiplex the total sensing resources. When the interval X between two consecutive first time-domain resources is not zero (or the interval Y is greater than the length of a single first time-domain resource), the freed-up time-domain resources can be allocated to other sensing reference signals. Thus, another sensing reference signal (e.g., a second sensing reference signal) can be inserted within the time-domain interval of a sensing reference signal (e.g., a first sensing reference signal) (i.e., the time-domain interval between multiple resources used to transmit the sensing reference signal).

[0143] For example, referring to Figure 9, the sensing reference signal resources consist of n×14 symbols. Assume the number of multiple first time-domain resources is m (m is a positive integer), with an interval X between consecutive first time-domain resources. The starting position of the m first time-domain resources is at symbol 0 in time slot 1, and the ending position is at symbol 10 in time slot n. Assume the number of multiple second time-domain resources is m' (m' is a positive integer, m' = m or m' ≠ m), with an interval X' between consecutive second time-domain resources (X' = X or X' ≠ X). The starting position of the m' second time-domain resources is at symbol 1 in time slot 1, and the ending position is at symbol 13 in time slot n. By configuring the values ​​of the starting position, ending position, interval X, and m of the first time-domain resources, and the values ​​of the starting position, ending position, interval X', and m' of the second time-domain resources, the terminal can determine the specific symbol positions occupied by each of the m first time-domain resources and the m' second time-domain resources, as shown in the third row of Figure 9.

[0144] In one specific embodiment, in the scenario of time-division multiplexing of the first and second resources to total sensing resources as shown in FIG9, the frequency domain position of any second frequency domain resource and the frequency domain position of any first frequency domain resource may overlap, partially overlap, or not overlap.

[0145] Specifically, because the first and second resources are time-division multiplexed, the configuration of these two resources in the frequency domain is unrestricted, and there is no need to consider the resource collision problem in the frequency domain.

[0146] For example, continuing to refer to the fourth row of Figure 9, the first frequency domain resources A1 corresponding to each first time domain resource are located at the same frequency domain position, that is, they all include subcarriers 1-2, 6-9, and 12-13. Similarly, the second frequency domain resources B1 corresponding to each second time domain resource are located at the same frequency domain position, that is, they all include subcarriers 1 to 14. It can be seen that in this example, the frequency domain position of any second frequency domain resource B1 corresponding to any second time domain resource partially overlaps with the frequency domain position of any first frequency domain resource A1 corresponding to any first time domain resource. The pattern of the second frequency domain resource B1 is not limited by the pattern of the first frequency domain resource A1. All resources in the frequency domain corresponding to the second time domain resource can be configured as second frequency domain resource B1.

[0147] In one specific embodiment, at least one second time-domain resource and at least one first time-domain resource may be located in the same time-domain position, and no second frequency-domain resource and no first frequency-domain resource overlap.

[0148] Specifically, the first and second resources can share the same time-domain resources, either partially or entirely, and transmit the first and second sensing reference signals separately through frequency division multiplexing. This helps to further improve resource utilization.

[0149] In some embodiments, the interval X' of the second time-domain resource is equal to the interval X of the first time-domain resource, the starting position of the second time-domain resource is the same as the starting position of the first time-domain resource, and the number m' of the multiple second resources is equal to the number m of the multiple first resources. Therefore, all first time-domain resources and all second time-domain resources may overlap. In this example, it is assumed that the length of both the first and second time-domain resources is one symbol.

[0150] For example, referring to Figure 10, the sensing reference signal resources consist of n×14 symbols. Assume that the starting positions of the m first time-domain resources are located at symbol 0 of time slot 1, and the ending positions of the m first time-domain resources are located at symbol 13 of time slot n. The starting positions of the m' second time-domain resources are also located at symbol 0 of time slot 1, and the ending positions of the m' second time-domain resources are also located at symbol 13 of time slot n. By configuring the values ​​of the starting positions, ending positions, interval X, and m of the first and second time-domain resources in the configuration information, the terminal can determine the specific symbol positions occupied by each of the m first time-domain resources and the m' second time-domain resources, as shown in the third row of Figure 10. That is, assuming m = m', X = X', the first time domain resource 1 and the second time domain resource 1 overlap, and the first time domain resource m and the second time domain resource m' overlap, then it can be determined that the m first time domain resources and m' second time domain resources configured by the network device correspond one-to-one, and each first time domain resource and its corresponding second time domain resource are located on the same symbol.

[0151] Furthermore, the configuration information can also indicate the frequency domain location of the first frequency domain resource A1 and the frequency domain location of the second frequency domain resource B1. The resulting configuration pattern is shown in the fourth row of Figure 10. Referring to Figure 10, it can be seen that the first frequency domain resource A1 and the second frequency domain resource B1 frequency-division multiplex the frequency domain resources corresponding to the first time domain resource (and the second time domain resource).

[0152] In some embodiments, by reasonably configuring parameters such as the interval X' of the second time-domain resource, the interval X of the first time-domain resource, the starting position of the second time-domain resource, the starting position of the first time-domain resource, the number m' of the multiple second resources, and the number m of the multiple first resources, it is also possible to achieve partial overlap or partial non-overlap between the multiple first time-domain resources and the multiple second time-domain resources.

[0153] For example, referring to Figure 11, the sensing reference signal resources consist of n×14 symbols. Assume that the starting positions of the m first time-domain resources are located at symbol 0 of time slot 1, and the ending positions of the m first time-domain resources are located at symbol 13 of time slot n. The starting positions of the m' second time-domain resources are also located at symbol 0 of time slot 1, and the ending positions of the m' second time-domain resources are also located at symbol 13 of time slot n. By configuring the values ​​of the starting positions, ending positions, interval X, and m of the first and second time-domain resources in the configuration information, the terminal can determine the specific symbol positions occupied by each of the m first time-domain resources and the m' second time-domain resources, as shown in the third row of Figure 11. Referring to Figure 11, the first first time domain resource among the m first time domain resources overlaps with the first second time domain resource among the m' second time domain resources, the last first time domain resource among the m first time domain resources overlaps with the last second time domain resource among the m' second time domain resources, and the remaining first time domain resources among the m first time domain resources and the remaining second time domain resources among the m' second time domain resources do not overlap.

[0154] Furthermore, the configuration information can also indicate the frequency domain position of the first frequency domain resource A1 and the frequency domain position of the second frequency domain resource B1, and the resulting pattern is shown in the fourth row of Figure 11. By configuring the frequency domain distribution pattern shown in Figure 11, in the case where the first time domain resource and the second time domain resource overlap, the transmission of the first sensing reference signal and the second sensing reference signal can be achieved without interference by staggering the configuration of the first frequency domain resource A1 and the second frequency domain resource B1.

[0155] In some embodiments, for the remaining resources in the sensing reference signal resources that are not configured for the first sensing reference signal and the second sensing reference signal (e.g., blank resources in Figures 4 and 9-11), the network device may configure these remaining resources with reference to the configuration method of the second resources in order to send sensing reference signals that are different from the first sensing reference signal and the second sensing reference signal.

[0156] In one specific embodiment, the terminal can act as both a sensing transmitter and a sensing receiver, receiving the echo signal generated after the first sensing reference signal is applied to the sensing target, and processing the echo signal to obtain the sensing result.

[0157] Specifically, in this implementation scheme, the moving speed of the sensed target is estimated at least based on the echo signal.

[0158] Furthermore, continuing to refer to Figure 3, the communication method described in this embodiment may further include:

[0159] In step S103, the terminal reports the sensing results to the network device. Correspondingly, the network device receives the sensing results, which include the moving speed of the sensed target.

[0160] Therefore, by adopting this implementation scheme, a new reference signal resource for the 6G ISAC system is defined, which occupies reference signal resources with equal intervals in the time domain (i.e., first resources). This makes the first resources more suitable for high-precision velocity estimation in sensing. Thus, using multiple uniformly distributed first resources for sensing can improve the accuracy of velocity estimation for the sensed target.

[0161] Furthermore, the start and end positions of the plurality of first time-domain resources are located in different time units. Compared with the existing NR system, which cannot allocate resources across time units (e.g., time slots) in the time domain, the scheme of this application can allocate resources across time units, making the allocation of reference signal resources used for sensing more flexible and conducive to improving resource utilization.

[0162] Furthermore, by adopting this implementation scheme, a single resource configuration (i.e., a separate configuration for the sensing reference signal) can achieve the same effect as existing methods that combine multiple resources into one configuration (i.e., current NR systems mix reference signals together regardless of whether they are used for sensing or other purposes). This gives this scheme a greater advantage given a fixed total number of resources.

[0163] Figure 12 is a schematic diagram of the structure of a communication device 20 according to an embodiment of this application. Those skilled in the art will understand that the communication device 20 described in this embodiment can be used to implement the technical solutions described in the embodiments shown in Figures 3 to 11.

[0164] Specifically, referring to FIG12, the communication device 20 may include: a receiving module 201, used to receive configuration information, the configuration information being used to configure a plurality of first resources corresponding to the first sensing reference signal, the first resources including first time domain resources, the plurality of first time domain resources being equally spaced; and a transmitting module 202, used to transmit the first sensing reference signal using the plurality of first resources.

[0165] In one specific embodiment, the start and end positions of the plurality of first time-domain resources are located in different time units.

[0166] In one specific embodiment, the first and last first time domain resources among the plurality of first time domain resources are located in different time slots.

[0167] In one specific embodiment, the first resource further includes a first frequency domain resource, and the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

[0168] In one specific embodiment, the configuration information includes at least one of the following: the start position of some or all of the plurality of first time-domain resources, the end position of some or all of the plurality of first time-domain resources, the number of the plurality of first resources, and the interval between adjacent first time-domain resources.

[0169] In one specific embodiment, the interval is an integer greater than or equal to zero.

[0170] In one specific embodiment, the starting position of the first first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the first first time domain resource is located, the ending position of the time unit in which the first first time domain resource is located, and the position between the starting position and the ending position; and / or, the ending position of the last first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the last first time domain resource is located, the ending position of the time unit in which the last first time domain resource is located, and the position between the starting position and the ending position.

[0171] In one specific embodiment, the configuration information is further used to configure a plurality of second resources corresponding to the second sensing reference signal, wherein the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in the time domain, and the start position and end position of the plurality of second resources are located in different time units, wherein the non-overlapping includes non-overlapping in the time domain and / or non-overlapping in the frequency domain.

[0172] In one specific embodiment, the second resource includes a second time-domain resource, wherein for each second time-domain resource, the second time-domain resource and any of the first time-domain resources do not overlap.

[0173] In one specific embodiment, the second resource further includes a second frequency domain resource, and the first resource further includes a first frequency domain resource. The second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource overlaps, partially overlaps, or does not overlap with the frequency domain position of any first frequency domain resource.

[0174] In one specific embodiment, the second resource includes a second time-domain resource and a second frequency-domain resource, and the first resource further includes a first frequency-domain resource. At least one second time-domain resource and at least one first time-domain resource are located at the same time-domain location, and no second frequency-domain resource and no first frequency-domain resource overlap.

[0175] In one specific embodiment, the communication device 20 further includes a reporting module for reporting sensing results, the sensing results including the moving speed of the sensing target.

[0176] For more details on the working principle and operation mode of the communication device 20, please refer to the relevant descriptions in Figures 3 to 11 above, which will not be repeated here. In specific implementations, the communication device 20 may correspond to a chip with communication function in a terminal, or to a chip with data processing function, such as a system-on-a-chip (SOC), baseband chip, etc.; or to a chip module in a terminal that includes a chip with communication function; or to a chip module with a chip with data processing function, or to a terminal.

[0177] Figure 13 is a schematic diagram of another communication device 30 according to an embodiment of this application. Those skilled in the art will understand that the communication device 30 described in this embodiment can be used to implement the technical solutions described in the embodiments shown in Figures 3 to 11.

[0178] Specifically, referring to FIG13, the communication device 30 may include: a transmitting module 301, used to transmit configuration information, the configuration information being used to configure a plurality of first resources corresponding to the first sensing reference signal, the first resources including first time domain resources, and the plurality of first time domain resources being distributed at equal intervals.

[0179] In one specific embodiment, the start and end positions of the plurality of first time-domain resources are located in different time units.

[0180] In one specific embodiment, the first and last first time domain resources among the plurality of first time domain resources are located in different time slots.

[0181] In one specific embodiment, the first resource further includes a first frequency domain resource, and the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

[0182] In one specific embodiment, the configuration information includes at least one of the following: the start position of some or all of the plurality of first time-domain resources, the end position of some or all of the plurality of first time-domain resources, the number of the plurality of first resources, and the interval between adjacent first time-domain resources.

[0183] In one specific embodiment, the interval is an integer greater than or equal to zero.

[0184] In one specific embodiment, the starting position of the first first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the first first time domain resource is located, the ending position of the time unit in which the first first time domain resource is located, and the position between the starting position and the ending position; and / or, the ending position of the last first time domain resource among the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the last first time domain resource is located, the ending position of the time unit in which the last first time domain resource is located, and the position between the starting position and the ending position.

[0185] In one specific embodiment, the configuration information is further used to configure a plurality of second resources corresponding to the second sensing reference signal, wherein the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in the time domain, and the start position and end position of the plurality of second resources are located in different time units, wherein the non-overlapping includes non-overlapping in the time domain and / or non-overlapping in the frequency domain.

[0186] In one specific embodiment, the second resource includes a second time-domain resource, wherein for each second time-domain resource, the second time-domain resource and any of the first time-domain resources do not overlap.

[0187] In one specific embodiment, the second resource further includes a second frequency domain resource, and the first resource further includes a first frequency domain resource. The second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource overlaps, partially overlaps, or does not overlap with the frequency domain position of any first frequency domain resource.

[0188] In one specific embodiment, the second resource includes a second time-domain resource and a second frequency-domain resource, and the first resource further includes a first frequency-domain resource. At least one second time-domain resource and at least one first time-domain resource are located at the same time-domain location, and no second frequency-domain resource and no first frequency-domain resource overlap.

[0189] In one specific embodiment, the communication device 30 further includes: a receiving module for receiving sensing results, the sensing results including the moving speed of the sensing target.

[0190] For more details on the working principle and operation mode of the communication device 30, please refer to the relevant descriptions in Figures 3 to 11 above, which will not be repeated here. In specific implementations, the communication device 30 may correspond to a chip with communication function in a network device, or to a chip with data processing function, such as a system-on-a-chip (SOC), baseband chip, etc.; or to a chip module in a network device that includes a chip with communication function; or to a chip module with a chip with data processing function; or to a network device.

[0191] In specific implementation, the modules / units included in the various devices and products described in the above embodiments can be software modules / units, hardware modules / units, or a combination of both.

[0192] For example, for various devices and products applied to or integrated into a chip, each module / unit can be implemented using hardware methods such as circuits, or at least some modules / units can be implemented using software programs that run on a processor integrated within the chip, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits; for various devices and products applied to or integrated into a chip module, each module / unit can be implemented using hardware methods such as circuits, and different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or different components of the chip module, or at least some modules / units can be implemented using hardware methods such as circuits. The components can be implemented using software programs that run on the processor integrated within the chip module. The remaining (if any) modules / units can be implemented using hardware methods such as circuits. For various devices and products applied to or integrated into the terminal, each of its components / units can be implemented using hardware methods such as circuits. Different modules / units can be located in the same component (e.g., chip, circuit module, etc.) or in different components within the terminal. Alternatively, at least some modules / units can be implemented using software programs that run on the processor integrated within the terminal, while the remaining (if any) modules / units can be implemented using hardware methods such as circuits.

[0193] Figure 14 is a signaling interaction diagram of another communication method (denoted as Embodiment 2) according to an embodiment of this application. The difference between Embodiment 2 and Embodiment 1 shown in Figure 3 above is that the terminal acts as a sensing receiver in the sensing scenario. Here, we will only mainly describe the differences between Embodiment 2 and Embodiment 1.

[0194] Specifically, referring to Figure 14, the communication method described in this embodiment may include the following steps:

[0195] S401: The network device sends configuration information to the terminal. Correspondingly, the terminal receives the configuration information.

[0196] In this example, when the terminal acts as a sensing receiver, it also needs to receive configuration information in order to receive the sensing reference signal at the correct time and frequency location and then report the sensing results.

[0197] For details regarding the configuration information, please refer to the relevant descriptions in the embodiments shown in Figures 3 to 11 above, which will not be repeated here.

[0198] Furthermore, continuing to refer to Figure 14, the communication method described in this embodiment may further include the following steps:

[0199] In step S402, the terminal acquires the sensing results. Specifically, the terminal receives first sensing reference signals on multiple first resources indicated by the configuration information and processes them to obtain the sensing results.

[0200] Furthermore, the terminal executes step S403 to report the sensing results to the network device. Correspondingly, the network device receives the sensing results.

[0201] This invention also provides a computer-readable storage medium, which is a non-volatile or non-transitory storage medium storing a computer program. When a processor executes the computer program, it performs the steps of the communication method provided in any of the above embodiments. Preferably, the storage medium may include a computer-readable storage medium such as non-volatile or non-transitory memory. The storage medium may include ROM, RAM, a magnetic disk, or an optical disk, etc.

[0202] This invention also provides another communication device, including a memory and a processor. The memory stores a computer program that can run on the processor. When the processor runs the computer program, it executes the steps of the communication method provided in the embodiments corresponding to Figures 3 to 11 or 14. The communication device can be integrated into a terminal, or the communication device can be, for example, a terminal.

[0203] This invention also provides a computer program product, including a computer program / instruction, which, when executed by a processor, implements the steps of the communication method provided in the embodiments corresponding to Figures 3 to 11 or 14.

[0204] The terminal in this application embodiment is a device with wireless communication capabilities, and may be referred to as a user, user terminal, terminal equipment, mobile station (MS), mobile terminal (MT), access terminal equipment, vehicle-mounted terminal equipment, industrial control terminal equipment, user equipment (UE), UE unit, UE station, mobile station, remote station, remote terminal equipment, mobile device, UE terminal equipment, wireless communication equipment, UE agent, or UE device, etc. The user terminal can be fixed or mobile. It should be noted that the user terminal can support at least one wireless communication technology, such as Long Term Evolution (LTE) or New Radio (NR). For example, user terminals can be mobile phones, tablets, desktop computers, laptops, all-in-one computers, in-vehicle terminals, virtual reality (VR) terminal devices, augmented reality (AR) terminal devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, wearable devices, terminal devices in future mobile communication networks, or terminal devices in future evolved public land mobile networks (PLMNs), etc. In some embodiments of this application, the user terminal may also be a device with transceiver functions, such as a chip system. The chip system may include a chip, and may also include other discrete components.

[0205] The network device in this application embodiment may include a device that provides wireless communication functions for user terminals, and may also include core network elements in the core network (CN).

[0206] Equipment providing wireless communication functions for user terminals can also be called access network equipment, radio access network (RAN) equipment, or access network elements. These network devices can support at least one wireless communication technology, such as LTE or NR. Examples of network equipment include, but are not limited to: next-generation node B (gNB), evolved node B (eNB), radio network controller (RNC), node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved node B, or home node B (HNB)), baseband unit (BBU), transmitting and receiving point (TRP), transmitting point (TP), and mobile switching center in 5th-generation (5G) mobile communication systems. Network devices can also be radio controllers, centralized units (CUs), and / or distributed units (DUs) in cloud radio access network (CRAN) scenarios, or access network devices can be relay stations, access points, vehicle-mounted devices, terminal devices, wearable devices, and network devices in future mobile communications or future evolved PLMNs. In some embodiments, network devices can also be apparatuses that provide wireless communication capabilities to user terminals, such as chip systems. For example, a chip system may include chips, and may also include other discrete devices.

[0207] Core network elements, also known as core network equipment, are network elements deployed in the core network, such as core network control plane elements or core network user plane elements. In this embodiment of the invention, the core network can be an Evolved Packet Core (EPC), a 5G Core Network, or a new type of core network in future communication systems. For example, a 5G core network consists of a set of network elements that implement functions such as Access and Mobility Management Function (AMF), User Plane Function (UPF) providing packet routing and forwarding and QoS (Quality of Service) management, and Session Management Function (SMF) providing session management, IP address allocation and management. The EPC can consist of a Mobility Management Entity (MME) providing mobility management and gateway selection, a Serving Gateway (S-GW) providing packet forwarding, and a PDN Gateway (P-GW) providing terminal address allocation and rate control. For Multicast Broadcast Service (MBS), the core network can include several new network elements to implement functions such as packet forwarding, MBS conference management, QoS management, and transmission mode switching (switching between unicast and multicast / broadcast transmission modes). Alternatively, these functions can be implemented by existing core network elements.

[0208] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of this application; therefore, the scope of protection of this application should be determined by the scope defined in the claims.

Claims

1. A communication method characterized by comprising: The method comprises: receiving configuration information, the configuration information being used to configure a plurality of first resources corresponding to a first sensing reference signal, the first resources comprising first time domain resources, the plurality of first resources comprising a plurality of first time domain resources which are equally spaced in time domain; transmitting the first sensing reference signal using the plurality of first resources.

2. The communication method according to claim 1, characterized by, The starting position and the ending position of the plurality of first time domain resources are located in different time units.

3. The communication method according to claim 2, wherein, The first time domain resource and the last time domain resource in the plurality of first time domain resources are located in different time slots.

4. The communication method according to any one of claims 1 to 3, characterized by, The first resources further comprise first frequency domain resources, and the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

5. The communication method according to any one of claims 1 to 4, characterized by, The configuration information comprises at least one of the following: the starting position of part or all of the plurality of first time domain resources, the ending position of part or all of the plurality of first time domain resources, the number of the plurality of first resources, and the interval between adjacent first time domain resources.

6. The communication method according to claim 5, wherein, The interval is an integer greater than or equal to zero.

7. The communication method according to any one of claims 1 to 6, characterized by, The starting position of the first time domain resource in the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the first time domain resource is located, the ending position of the time unit in which the first time domain resource is located, and a position between the starting position and the ending position; and / or, the ending position of the last time domain resource in the plurality of first time domain resources is located at one of the following: the starting position of the time unit in which the last time domain resource is located, the ending position of the time unit in which the last time domain resource is located, and a position between the starting position and the ending position.

8. The communication method according to any one of claims 1 to 7, characterized in that, The configuration information is further used to configure a plurality of second resources corresponding to a second sensing reference signal, the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in time domain, and the starting position and the ending position of the plurality of second resources are located in different time units, wherein the non-overlapping includes non-overlapping in time domain and / or non-overlapping in frequency domain.

9. The communication method according to claim 8, wherein, The second resources comprise second time domain resources, and for each second time domain resource, the second time domain resource and any first time domain resource do not overlap.

10. The communication method according to claim 9, wherein, The second resources further comprise second frequency domain resources, the first resources further comprise first frequency domain resources, and the second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource and the frequency domain position of any first frequency domain resource overlap, partially overlap, or do not overlap.

11. The communication method according to claim 8, wherein, The second resources comprise second time domain resources and second frequency domain resources, the first resources further comprise first frequency domain resources, at least one second time domain resource and at least one first time domain resource are located at the same time domain position, and any second frequency domain resource and any first frequency domain resource do not overlap.

12. The communication method according to any one of claims 1 to 11, characterized by, The method further comprises: reporting a sensing result, the sensing result comprising the moving speed of a sensing target.

13. A method of communication, comprising: The method comprises: transmit configuration information, the configuration information being used for configuring a plurality of first resources corresponding to a first sensing reference signal, the first resources comprising first time domain resources, the plurality of first resources comprising a plurality of first time domain resources which are equally spaced in time domain.

14. The communication method according to claim 13, wherein, The start position and the end position of the plurality of first time domain resources are located in different time units.

15. The communication method according to claim 14, wherein, The first one and the last one of the plurality of first time domain resources are located in different time slots.

16. The communication method according to any one of claims 13 to 15, characterized by, The first resources further comprise first frequency domain resources, and the first frequency domain resources of the plurality of first resources are located at the same frequency domain position.

17. The communication method according to any one of claims 13 to 16, characterized by, The configuration information comprises at least one of the following: the start position of part or all of the plurality of first time domain resources, the end position of part or all of the plurality of first time domain resources, the number of the plurality of first resources, and the interval between adjacent first time domain resources.

18. The communication method according to claim 17, wherein, The interval is an integer greater than or equal to zero.

19. The communication method according to any one of claims 13 to 18, characterized by, The start position of the first one of the plurality of first time domain resources is located at one of the following: the start position of the time unit in which the first one of the plurality of first time domain resources is located, the end position of the time unit in which the first one of the plurality of first time domain resources is located, and a position between the start position and the end position; and / or, the end position of the last one of the plurality of first time domain resources is located at one of the following: the start position of the time unit in which the last one of the plurality of first time domain resources is located, the end position of the time unit in which the last one of the plurality of first time domain resources is located, and a position between the start position and the end position.

20. The communication method according to any one of claims 13 to 19, characterized by, The configuration information is further used for configuring a plurality of second resources corresponding to a second sensing reference signal, the second resources and the first resources do not overlap, the plurality of second resources are equally spaced in time domain, and the start position and the end position of the plurality of second resources are located in different time units, wherein the non-overlapping comprises non-overlapping in time domain and / or non-overlapping in frequency domain.

21. The communication method according to claim 20, wherein, The second resources comprise second time domain resources, and for each second time domain resource, the second time domain resource and any first time domain resource do not overlap.

22. The communication method according to claim 21, wherein, The second resources further comprise second frequency domain resources, the first resources further comprise first frequency domain resources, and the second frequency domain resources of the plurality of second resources are located at the same frequency domain position, wherein the frequency domain position of any second frequency domain resource and the frequency domain position of any first frequency domain resource overlap, partially overlap, or do not overlap.

23. The communication method of claim 22, wherein, The second resources comprise second time domain resources and second frequency domain resources, the first resources further comprise first frequency domain resources, at least one second time domain resource and at least one first time domain resource are located at the same time domain position, and any second frequency domain resource and any first frequency domain resource do not overlap.

24. The communication method according to any one of claims 13 to 23, characterized by, Further comprising: receiving a sensing result, the sensing result comprising a moving speed of a sensing target.

25. A communications device, characterized by Further comprising: a receiving module, configured to receive configuration information, the configuration information being used for configuring a plurality of first resources corresponding to a first sensing reference signal, the first resources comprising first time domain resources, the plurality of first resources comprising a plurality of first time domain resources which are equally spaced in time domain; The sending module is configured to send the first sensing reference signal using the plurality of first resources.

26. A communications device, characterized by The method comprises: The sending module is configured to send configuration information, wherein the configuration information is used for configuring a plurality of first resources corresponding to the first sensing reference signal, the first resources comprise first time domain resources, and a plurality of first time domain resources included in the plurality of first resources are equally spaced in the time domain.

27. A computer-readable storage medium, which is a non-volatile storage medium or a non-transitory storage medium, on which a computer program is stored, characterized in that, The computer program, when executed by a computer, performs the steps of the method of any one of claims 1 to 24.

28. A computer program product comprising computer programs / instructions, characterized in that, The computer program / instructions, when executed by a computer, implement the steps of the method of any one of claims 1 to 24.

29. A communication device comprising a memory and a processor, said memory having stored thereon a computer program that is operable to run on said processor, characterized in that, The processor, when executing the computer program, performs the steps of the method of any one of claims 1 to 24.

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