Measurement quantity reporting method, device, apparatus, and storage medium

Abstract

The present disclosure provides a measurement quantity reporting method, a device, an apparatus, and a storage medium. The method comprises: a first communication device measuring a sensing reference signal to obtain a first measurement quantity related to a sensing target, wherein the first measurement quantity comprises a speed and / or Doppler frequency offset; and reporting the first measurement quantity to a sensing server.

Description

Measurement quantity reporting method, device, apparatus and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202410307801.6, filed on March 18, 2024, entitled “Measurement Quantity Reporting Method, Equipment, Device and Storage Medium,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the field of wireless communication technologies, and in particular to a measurement quantity reporting method, device, apparatus, and storage medium. Background Art

[0004] Integrated Sensing and Communication (ISAC), a key candidate evolutionary technology for New Radio (NR) systems, is based on the concept of introducing wireless sensing capabilities into wireless mobile communications. Wireless sensing involves sensing environmental information through wireless signals. This information includes the distribution, size, quantity, and temperature of objects, human movements and behavior, and even breathing and heart rates. Wireless sensing works by transmitting radio signals to the environment to be sensed and collecting these signals at the sensing receiver, which have been reflected, scattered, and transmitted through multiple paths. Because the collected wireless signals have been subjected to the environment, they carry environmental information. After receiving the signals, complex signal processing is performed to identify environmental features. This allows for the reconstruction of the perceived environment on a computer. This includes identifying people and objects, detecting temperature, detecting human movements, and even detecting breathing and heart rates.

[0005] The ISAC system supports target perception based on time delay, angle, and phase measurements, but the accuracy of perception still needs to be further improved. Summary of the Invention

[0006] The present disclosure provides a measurement quantity reporting method, device, apparatus, and storage medium to improve the accuracy of target perception.

[0007] In a first aspect, the present disclosure provides a measurement quantity reporting method, applied to a first communication device, including:

[0008] Measuring a sensing reference signal to obtain a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency deviation;

[0009] Report the first measurement quantity to the perception server.

[0010] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0011] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0012] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0013] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0014] In some embodiments, the method further comprises:

[0015] Report the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift to the perception server.

[0016] In some embodiments, the method further comprises:

[0017] Send one or more of the following instructions to the awareness server:

[0018] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0019] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0020] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0021] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0022] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0023] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0024] Perceiving the location information or identification information of the receiving end;

[0025] a perceptual reference signal index corresponding to the first measurement amount;

[0026] Sense the location information or identification information of the sender.

[0027] In some embodiments, the time indication information includes any of the following:

[0028] The start and end measurement times of the first measurement quantity;

[0029] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0030] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0031] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0032] In some embodiments, the quality indicator information includes one or more of the following:

[0033] Uncertainty of the first measured quantity;

[0034] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0035] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0036] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0037] The link from the sensing sender to the sensing receiver;

[0038] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0039] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0040] The first measurement quantity and the second measurement quantity are reported independently;

[0041] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0042] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0043] The first measurement quantity is reported periodically.

[0044] In a second aspect, the present disclosure further provides a measurement quantity reporting method, which is applied to a perception server, including:

[0045] receiving a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency deviation;

[0046] Perception information of the perception target is determined based on the first measurement quantity.

[0047] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0048] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0049] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0050] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0051] In some embodiments, the method further comprises:

[0052] Receive center frequency information of a subcarrier group used for calculating the absolute value of the Doppler frequency shift reported by the first communication device.

[0053] In some embodiments, the method further comprises:

[0054] Receive one or more of the following indication information sent by the first communication device:

[0055] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0056] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0057] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0058] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0059] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0060] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0061] Perceiving the location information or identification information of the receiving end;

[0062] a perceptual reference signal index corresponding to the first measurement amount;

[0063] Sense the location information or identification information of the sender.

[0064] In some embodiments, the time indication information includes any of the following:

[0065] The start and end measurement times of the first measurement quantity;

[0066] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0067] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0068] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0069] In some embodiments, the quality indicator information includes one or more of the following:

[0070] Uncertainty of the first measured quantity;

[0071] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0072] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0073] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0074] The link from the sensing sender to the sensing receiver;

[0075] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0076] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0077] The first measurement quantity and the second measurement quantity are reported independently;

[0078] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0079] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0080] The first measurement quantity is reported periodically.

[0081] In a third aspect, the present disclosure further provides a first communication device, including a memory, a transceiver, and a processor;

[0082] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0083] Measuring a sensing reference signal to obtain a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency deviation;

[0084] Report the first measurement quantity to the perception server.

[0085] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0086] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0087] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0088] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0089] In some embodiments, the operations further include:

[0090] Report the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift to the perception server.

[0091] In some embodiments, the operations further include:

[0092] Send one or more of the following instructions to the awareness server:

[0093] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0094] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0095] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0096] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0097] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0098] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0099] Perceiving the location information or identification information of the receiving end;

[0100] a perceptual reference signal index corresponding to the first measurement amount;

[0101] Sense the location information or identification information of the sender.

[0102] In some embodiments, the time indication information includes any of the following:

[0103] The start and end measurement times of the first measurement quantity;

[0104] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0105] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0106] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0107] In some embodiments, the quality indicator information includes one or more of the following:

[0108] Uncertainty of the first measured quantity;

[0109] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0110] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0111] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0112] The link from the sensing sender to the sensing receiver;

[0113] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0114] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0115] The first measurement quantity and the second measurement quantity are reported independently;

[0116] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0117] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0118] The first measurement quantity is reported periodically.

[0119] In a fourth aspect, the present disclosure further provides a perception server, comprising a memory, a transceiver, and a processor;

[0120] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0121] receiving a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency deviation;

[0122] Perception information of the perception target is determined based on the first measurement quantity.

[0123] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0124] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0125] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0126] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0127] In some embodiments, the operations further include:

[0128] Receive center frequency information of a subcarrier group used for calculating the absolute value of the Doppler frequency shift reported by the first communication device.

[0129] In some embodiments, the operations further include:

[0130] Receive one or more of the following indication information sent by the first communication device:

[0131] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0132] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0133] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0134] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0135] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0136] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0137] Perceiving the location information or identification information of the receiving end;

[0138] a perceptual reference signal index corresponding to the first measurement amount;

[0139] Sense the location information or identification information of the sender.

[0140] In some embodiments, the time indication information includes any of the following:

[0141] The start and end measurement times of the first measurement quantity;

[0142] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0143] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0144] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0145] In some embodiments, the quality indicator information includes one or more of the following:

[0146] Uncertainty of the first measured quantity;

[0147] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0148] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0149] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0150] The link from the sensing sender to the sensing receiver;

[0151] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0152] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0153] The first measurement quantity and the second measurement quantity are reported independently;

[0154] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0155] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0156] The first measurement quantity is reported periodically.

[0157] In a fifth aspect, the present disclosure further provides a measurement quantity reporting device, including:

[0158] An acquiring unit, configured to measure a sensing reference signal to acquire a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency shift;

[0159] A reporting unit is configured to report the first measurement value to the perception server.

[0160] In a sixth aspect, the present disclosure further provides a measurement quantity reporting device, including:

[0161] A receiving unit, configured to receive a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency deviation;

[0162] A determining unit is configured to determine perception information of a perception target based on the first measurement amount.

[0163] In the seventh aspect, the present disclosure also provides a non-transitory readable storage medium, which stores a computer program, and the computer program is used to enable the processor to execute the measurement quantity reporting method described in the first aspect as described above, or execute the measurement quantity reporting method described in the second aspect as described above.

[0164] In an eighth aspect, the present disclosure further provides a communication device, in which a computer program is stored, and the computer program is used to enable the communication device to execute the measurement quantity reporting method described in the first aspect above, or execute the measurement quantity reporting method described in the second aspect above.

[0165] In a ninth aspect, the present disclosure further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the measurement quantity reporting method described in the first aspect as described above, or execute the measurement quantity reporting method described in the second aspect as described above.

[0166] In a tenth aspect, the present disclosure further provides a chip product, in which a computer program is stored, and the computer program is used to enable the chip product to execute the measurement quantity reporting method described in the first aspect above, or execute the measurement quantity reporting method described in the second aspect above.

[0167] The measurement quantity reporting method, equipment, device and storage medium provided in the present disclosure report the first measurement quantity of speed and / or Doppler frequency deviation to the perception server through the first communication device, so that the perception server can obtain speed-type measurement quantities, and then use the speed-type measurement quantities and other measurement quantities to make joint judgments, thereby improving the accuracy of target perception. BRIEF DESCRIPTION OF THE DRAWINGS

[0168] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0169] FIG1 is a schematic diagram of single-base sensing and dual-base sensing provided by related technologies;

[0170] FIG2 is a flow chart of a method for reporting measurement values ​​according to an embodiment of the present disclosure;

[0171] FIG3 is a schematic diagram of horizontal velocity and vertical velocity provided by an embodiment of the present disclosure;

[0172] FIG4 is a schematic diagram of the direction of dual-base sensing of horizontal velocity according to an embodiment of the present disclosure;

[0173] FIG5 is a schematic diagram of uncertainty of speed measurement provided by an embodiment of the present disclosure;

[0174] FIG6 is a second flow chart of a method for reporting measurement values ​​according to an embodiment of the present disclosure;

[0175] FIG7 is a schematic structural diagram of a first communication device provided in an embodiment of the present disclosure;

[0176] FIG8 is a schematic diagram of the structure of a perception server provided in an embodiment of the present disclosure;

[0177] FIG9 is a schematic diagram of a structure of a measurement value reporting device according to an embodiment of the present disclosure;

[0178] FIG10 is a second structural diagram of the measurement quantity reporting device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0179] In the embodiments of the present disclosure, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0180] In the embodiments of the present disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar thereto.

[0181] In the embodiments of the present disclosure, the terms "first," "second," and the like are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present disclosure can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more.

[0182] The following will be combined with the accompanying drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the embodiments described are only part of the embodiments of the present disclosure and not all of the embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present disclosure.

[0183] In order to facilitate a clearer understanding of the technical solutions of the various embodiments of the present disclosure, some technical contents related to the various embodiments of the present disclosure are first introduced.

[0184] 1. Perception Mode

[0185] Wireless sensing is generally divided into two modes: single-base sensing and dual-base sensing. Single-base sensing involves a base station (or terminal) actively transmitting a sensing signal (also known as a sensing reference signal). After the sensing signal is reflected by the sensing object, the base station (or terminal) receives the reflected sensing signal. Dual-base sensing involves a base station (or terminal) actively transmitting a sensing signal. The sensing signal travels through the wireless channel and is then received by the other terminal (or base station).

[0186] Figure 1 illustrates single-base sensing and dual-base sensing in related technologies. As shown in Figure 1, single-base sensing includes base station (gNB) single-base sensing and terminal (UE) single-base sensing. Dual-base sensing includes UE-gNB dual-base sensing, gNB-UE dual-base sensing, UE-UE dual-base sensing, and gNB-gNB dual-base sensing.

[0187] 2. NR positioning measurement

[0188] In the NR system, downlink positioning measurement quantities include relative signal time difference (RSTD), UE Rx-Tx time difference, reference signal received power (RSRP), reference signal received path power (RSRPP), reference signal carrier phase (RSCP), and reference signal carrier phase difference (RSCPD). Uplink positioning measurement quantities include relative time of arrival (RTOA), gNB Rx-Tx time difference, angle of arrival (AoA), and RSCP.

[0189] ISAC includes two application scenarios: in-coverage (IC) and out-of-coverage (OOC). The IC scenario supports three devices (or nodes): the sensing server (or sensing function, SF), the gNB, and the UE. It supports two single-base sensing (A-transmit, A-receive) modes: base station single-base sensing and terminal single-base sensing. It also supports four dual-base sensing (A-transmit, B-receive) modes: UE-UE dual-base sensing, gNB-gNB dual-base sensing, UE-gNB dual-base sensing, and gNB-UE dual-base sensing. The OOC scenario supports UE nodes, UE single-base sensing, and UE-UE dual-base sensing (based on sidelink).

[0190] Currently, 5G NR positioning measurements only include delay, angle, and phase measurements, but not speed measurements. Therefore, the ISAC system cannot obtain speed measurements and cannot combine them with delay, angle, and other measurements for judgment, resulting in low perception accuracy.

[0191] FIG2 is a flow chart of a method for reporting a measurement value according to an embodiment of the present disclosure. The method is applied to a first communication device. As shown in FIG2 , the method includes the following steps:

[0192] Step 200: Measure a sensing reference signal to obtain a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency offset.

[0193] Step 201: Report a first measurement value to a perception server.

[0194] Specifically, the first communication device can be a terminal or a network device (such as a base station). In the single-base sensing mode, the first communication device is both a sensing receiver (a device that receives and measures a sensing reference signal) and a sensing transmitter (a device that transmits a sensing reference signal). In the dual-base sensing mode, the first communication device is a sensing receiver.

[0195] The perception reference signal may be a downlink reference signal, a downlink channel, an uplink reference signal, an uplink channel, or a sidelink (SL) signal or channel, etc.

[0196] The downlink reference signal can be, for example, a downlink (DL) positioning reference signal (PRS), a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a demodulation reference signal (DMRS), or a newly defined downlink perception reference signal (e.g., a single carrier signal).

[0197] The downlink channel may be, for example, a physical downlink control channel (Physical Downlink Control Channel, PDCCH) or a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

[0198] The uplink reference signal may be, for example, a sounding reference signal (SRS), an SRS for positioning (SRS-Pos), a physical uplink shared channel (PUSCH) DMRS, or a newly defined uplink perception reference signal.

[0199] The uplink channel may be, for example, a physical random access channel (PRACH), a PUSCH, or a physical uplink control channel (PUCCH).

[0200] The sidelink signal or channel may be, for example, a direct link positioning reference signal (SL-PRS) or a physical sidelink shared channel (Physical Sidelink Shared Channel, SL-PSSCH).

[0201] The first communication device receives and measures a sensing reference signal to obtain a first measurement quantity related to the sensing target. This first measurement quantity includes speed and / or Doppler frequency deviation, also collectively referred to as speed-related measurement quantities. The sensing reference signal measured by the first communication device is transmitted by the second communication device to the sensing target, reflected by the sensing target, and then reaches the first communication device. In the monostatic sensing mode, the first and second communication devices are the same device. In the dual-static sensing mode, the first and second communication devices are different devices.

[0202] After obtaining the first measurement quantity related to the perception target, the first communication device reports the first measurement quantity about the perception target to the perception server (SF). After the perception server receives the first measurement quantity about the perception target reported by the first communication device, it can determine the perception information of the perception target (for example, speed, position, trajectory, etc.) based on the reported information, thereby improving the accuracy of target perception.

[0203] The measurement quantity reporting method provided in the embodiment of the present disclosure reports the first measurement quantity of speed and / or Doppler frequency deviation to the perception server through the first communication device, so that the perception server can obtain speed-type measurement quantities, and then can use the speed-type measurement quantities and other measurement quantities to make joint judgments, thereby improving the accuracy of target perception.

[0204] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0205] Specifically, when reporting the first measurement quantity, different contents may be reported, such as the absolute value of the velocity; or the absolute value of the Doppler frequency shift; or the absolute value of the velocity and velocity direction information; or the absolute value of the Doppler frequency shift and velocity direction information.

[0206] In some embodiments, the reported speed can be a two-dimensional speed or a three-dimensional speed, where the two-dimensional speed is the horizontal speed, and the three-dimensional speed includes the horizontal speed and the vertical speed (the horizontal speed and the vertical speed are the horizontal component and the vertical component of the speed of the perceived target, respectively).

[0207] The horizontal dimension refers to the dimension within the horizontal plane, and the vertical dimension refers to the dimension perpendicular to the horizontal plane. FIG3 is a schematic diagram of the horizontal dimension velocity and the vertical dimension velocity provided by an embodiment of the present disclosure. FIG3 (a) shows the xoy plane rectangular coordinate system, and FIG3 (b) shows the three-dimensional rectangular coordinate system. The z-axis is perpendicular to the xoy plane. The horizontal dimension velocity refers to the velocity within the horizontal plane. In FIG3 , the xoy plane is a horizontal plane, the positive direction of the x-axis represents the due east direction, the positive direction of the y-axis represents the due north direction, the negative direction of the x-axis represents the due west direction, and the negative direction of the y-axis represents the due south direction. In the figure, v xoyis the horizontal velocity, θ represents the angle between the horizontal velocity and the true north direction. The vertical velocity refers to the velocity in the direction perpendicular to the horizontal plane. In Figure 3, the direction perpendicular to the horizontal plane is the z-axis direction. The vertical velocity (v in the figure) z ) can be a velocity pointing in the positive direction of the z-axis or a velocity pointing in the negative direction of the z-axis.

[0208] Similar to velocity, in some embodiments, the reported Doppler frequency deviation may be a two-dimensional Doppler frequency deviation or a three-dimensional Doppler frequency deviation. The two-dimensional Doppler frequency deviation is the horizontal Doppler frequency deviation, and the three-dimensional Doppler frequency deviation includes the horizontal Doppler frequency deviation and the vertical Doppler frequency deviation (the horizontal Doppler frequency deviation and the vertical Doppler frequency deviation are the horizontal and vertical components of the Doppler frequency deviation measured for the perceived target, respectively). The horizontal Doppler frequency deviation can be used to calculate the horizontal velocity, and the vertical Doppler frequency deviation can be used to calculate the vertical velocity.

[0209] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity. For example, when reporting a two-dimensional velocity, the absolute value of the horizontal velocity may be reported; when reporting a three-dimensional velocity, the absolute value of both the horizontal velocity and the vertical velocity may be reported.

[0210] Similar to velocity, in some embodiments, the absolute value of Doppler frequency deviation includes the absolute value of the horizontal Doppler frequency deviation and / or the absolute value of the vertical Doppler frequency deviation. For example, when reporting 2D Doppler frequency deviation, the absolute value of the horizontal Doppler frequency deviation may be reported; when reporting 3D Doppler frequency deviation, the absolute values ​​of both the horizontal and vertical Doppler frequency deviations may be reported.

[0211] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information. For example, when reporting two-dimensional velocity, the horizontal velocity direction information may be reported; when reporting three-dimensional velocity, the horizontal velocity direction information and the vertical velocity direction information may be reported.

[0212] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the true north direction to the velocity direction of the horizontal velocity, such as θ in Figure 3. The direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is a vertical upward direction (such as the positive direction of the z-axis in Figure 3) or a vertical downward direction (such as the negative direction of the z-axis in Figure 3).

[0213] For the single-base sensing mode, the speed direction of the horizontal dimension speed is radial (i.e., the direction of the line from the sensing target to the sensing transmitter / sensing receiver), or the projection of the radial in the horizontal dimension (when the radial is not in the horizontal dimension). For the dual-base sensing mode, the speed direction of the horizontal dimension speed is along the direction of the dual-base angle bisector. Figure 4 is a schematic diagram of the direction of the dual-base sensing horizontal dimension speed provided by an embodiment of the present disclosure. As shown in Figure 4, for the dual-base sensing mode, the direction information of the horizontal dimension speed indicates the rotation angle from the north direction to the dual-base angle bisector direction, as shown in the azimuth in the figure.

[0214] In some embodiments, the absolute value of the speed ranges from [0, v_max], where v_max represents the maximum speed range that the ISAC system can measure (for example, the value of v_max can be 100), and the granularity of the absolute value of the speed can be {10, 5, 1, 0.1}, in units of m / s or km / h.

[0215] In some embodiments, the angle in the velocity direction information has a value range of [-180, 180] or [0, 360], a granularity of {1, 0.1}, and a unit of degree.

[0216] In some embodiments, the vertical velocity direction information may be indicated by any indication information that can indicate two options, such as by 1 bit indicating the vertical upward direction (bit value 1) or the vertical downward direction (bit value 0).

[0217] In some embodiments, the range of the absolute value of the Doppler frequency deviation is [0, fd_max], where fd_max represents the maximum Doppler frequency deviation range that the ISAC system can measure (for example, the value of fd_max can be 600), and the granularity of the absolute value of the Doppler frequency deviation can be {10, 5, 1, 0.5}, and the unit is Hz.

[0218] Regarding the method for obtaining the first measurement quantity, reference may be made to the existing technical solutions for calculating velocity and Doppler frequency offset in the art, and the present disclosure does not make any specific limitation thereto.

[0219] In some embodiments, the calculation method for Doppler frequency shift and velocity is as follows:

[0220] Assume that the ISAC system uses an orthogonal frequency division multiplexing (OFDM) waveform. For a particular subcarrier k, the channel frequency response (CFR) at times t1 and t2 is H(k, t1) and H(k, t2), respectively. The corresponding phase values ​​are phase1 = phase(H(k, t1)) and phase2 = phase(H(k, t2)). Assuming the difference between phase2 and phase1 does not exceed 2*pi (pi refers to pi), then: 2*pi*fd*(t2-t1) = phase2-phase1; fd = (phase2-phase1) / (2*pi*(t2-t1)).

[0221] Where fd represents the Doppler frequency deviation, the granularity of time t1 and t2 is the OFDM symbol, assuming that the time length of a single OFDM symbol is T_ofdm, t1 = n1*T_ofdm, t2 = n2*T_ofdm, and n1 and n2 represent the absolute index values ​​of the corresponding OFDM symbols, respectively.

[0222] The absolute value of the velocity v and the Doppler frequency shift fd satisfy the following calculation relationship: v = c*fd / fc, where c represents the speed of light (3.0e8 m / s) and fc represents the effective carrier frequency (i.e., the center frequency of the subcarrier group used to calculate the Doppler frequency shift).

[0223] In some embodiments, the method further includes: reporting to the perception server the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency offset.

[0224] For example, when reporting the absolute value of the Doppler frequency offset (or the absolute value of the Doppler frequency offset and velocity direction information), the center frequency information of the subcarrier group (subcarrier set) used to calculate the absolute value of the Doppler frequency offset can also be reported to the perception server.

[0225] In some embodiments, if the perception reference signal is an OFDM signal, assuming that the center frequency of the subcarrier group (subcarrier set) used to calculate the Doppler frequency offset (absolute value) is fc, then fc can be calculated as follows: 1) fc = f0 + Freq_offset, where f0 represents the center frequency of the carrier, and Freq_offset represents the offset value of the center frequency of the subcarrier group used to calculate the Doppler frequency offset relative to the center frequency of the carrier; 2) assuming that the number of subcarriers contained in the subcarrier group used to calculate the Doppler frequency offset is K, and the lowest subcarrier position of the subcarrier group coincides with the center frequency position of the carrier, and the subcarrier spacing is delta_SCS, then fc = f0 + K / 2*delta_SCS.

[0226] In some embodiments, the method further comprises:

[0227] Send one or more of the following instructions to the awareness server:

[0228] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0229] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0230] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0231] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0232] Specifically, the first communication device may further send indication information related to the first measurement value to the perception server. The perception server may combine the first measurement value reported by the first communication device and the indication information to more accurately determine the perception information of the perception target.

[0233] The sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode. For example, if the first measurement quantity is measured in the monostatic sensing mode, the sensing mode indication information may indicate the monostatic sensing mode; if the first measurement quantity is measured in the dual-static sensing mode, the sensing mode indication information may indicate the dual-static sensing mode.

[0234] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end. When the sensing mode indication information includes identification information, the location information corresponding to the identification information may be notified to the sensing server in advance.

[0235] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0236] Perceiving the location information or identification information of the receiving end;

[0237] a perceptual reference signal index corresponding to the first measurement amount;

[0238] Sense the location information or identification information of the sender.

[0239] When the perception mode indication information includes identification information, the location information corresponding to the identification information may be notified to the perception server in advance.

[0240] The time indication information is used to indicate the measurement time of the first measurement quantity. For example, the first measurement quantity is calculated based on the measurement results of M (M is greater than 1) measurement moments with equal time intervals. The time indication information is used to indicate information of the M measurement moments. The granularity of the measurement moments can be a frame, subframe, time slot, or OFDM symbol, etc.

[0241] In some embodiments, the time indication information includes any of the following:

[0242] The start and end measurement times of the first measurement quantity;

[0243] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0244] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0245] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0246] For example, when the first measurement value is reported aperiodically, the time indication information includes the following two types:

[0247] Time indication information 1: the start measurement time t1 and the end measurement time t2 of the first measurement quantity, wherein the granularity of t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0248] Time indication information 2: the start measurement time t1 of the first measurement quantity, the measurement time interval delta_step, and the number of measurement times M. The granularity of t1 and delta_step includes frame, subframe, time slot, and OFDM symbol index.

[0249] For example, when the first measurement amount is reported periodically, the time indication information includes the following two types:

[0250] Time indication information 3: measurement period T_measure of the first measurement quantity, start measurement time t1 and end measurement time t2 of the first measurement quantity in each measurement period. The granularity of T_measure, t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0251] Time indication information 4: measurement period T_measure of the first measurement quantity, start measurement time t1 of the first measurement quantity in each measurement period, measurement time interval delta_step and number of measurement times M. The granularity of T_measure, t1 and delta_step includes frame, subframe, time slot and OFDM symbol index.

[0252] The quality indication information is used to indicate the quality of the first measurement quantity. For example, in some embodiments, the quality indication information includes one or more of the following:

[0253] Uncertainty of the first measurement quantity;

[0254] The first measurement amount corresponds to at least one of a signal to interference plus noise ratio (SINR), RSRP, and RSRPP of a perception reference signal.

[0255] The uncertainty of the first measurement quantity represents the error range between the reported first measurement quantity and the ideal value. Taking the first measurement quantity including speed as an example, FIG5 is a schematic diagram of the uncertainty of the speed measurement quantity provided by the embodiment of the present disclosure. As shown in FIG5, v x and v v They represent the two mutually perpendicular component vector directions of the velocity, V represents the ideal value of the velocity measurement, v represents the velocity measurement, s represents the uncertainty of the velocity measurement, |v–V|≤s.

[0256] The link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link. For example, it indicates that the link type (or channel state) of a certain link is LOS or NLOS.

[0257] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0258] Type 1: The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0259] Type 2: Link from the sensing sender to the sensing receiver;

[0260] Type 3: The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0261] The first communication device sends link indication information to the perception server, which may indicate the link type or channel status of any of the above-mentioned links of type 1, type 2, and type 3. For example, it indicates that the link from the perception sender to the perception target is a LOS path or an NLOS path, and indicates that the link from the perception target to the perception receiver is a LOS path or an NLOS path.

[0262] Type 1 is the link type of interest to the ISAC, while Types 2 and 3 are both link types that interfere with the ISAC. The receiver uses an algorithm to identify and eliminate the interference. Link type identification is based on the internal implementation of the perception receiver or perception server, and this disclosure does not limit this.

[0263] For the link type 1 that ISAC is concerned about, the following example illustrates an identification method that meets two basic assumptions: first, space-time consistency is met; second, at least one channel characteristic differs between type 1 and type 2 or type 3 links: for example, delay, power, phase from different polarized transmit antennas, speed, and perceived target location. The identification method includes the following steps:

[0264] Step 1: During simulation or actual testing, without placing any sensing targets, perform the first round of channel information testing.

[0265] Step 2: After the sensor target is manually placed, a second round of channel information testing is performed. In practical applications, these channel information tests can be performed periodically, and the recognition result obtained from the most recent test is used as the current recognition result.

[0266] Among them, under the basic assumption that the simulation or test environment meets the space-time consistency, there is a difference in at least one channel characteristic between the Type 1 and Type 2 / Type 3 links in the first and second rounds of testing: for example, there are differences in delay, power, phase from different polarized transmitting antennas, speed and perceived target position.

[0267] Based on the difference, link type 1 is identified. It should be noted that the following six methods can be used by the first communication device to identify link type 1, or by the perception server to identify link type 1 after the first communication device reports the first measurement value (and related indication information).

[0268] Method 1: Latency-based identification. For example, if the latency of the perceived target and the environmental interference (i.e., the environmental target) is different, if the latency of the perceived target obtained in the second round of testing is different from the latency of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0269] Method 2: Power-based identification: For example, based on the Channel Impulse Response (CIR) and a relative threshold value relative to the maximum power path, the identified link is determined to be a Type 1 link.

[0270] Method 3: Identification based on the phase or phase difference of different polarized transmit antennas. For example, if the phase or phase difference of the different polarized transmit antennas of the sensing target and the environmental interference are different, if the phase or phase difference of the sensing target from the different polarized transmit antennas obtained in the second round of testing is different from the phase or phase difference of any environmental interference from the different polarized transmit antennas in the first round of testing, then the link corresponding to the sensing target can be determined to be a Type 1 link.

[0271] Method 4: Speed-based recognition. For example, in situations where the speeds of the perceived target and the environmental interference are different (for example, the perceived target is moving while the environmental interference remains stationary), the correlation between the position and speed at adjacent moments can be used to assist in identifying the perceived target and the environmental object.

[0272] Method 5: Identification based on the perceived target location (where location can be relative distance or relative distance + relative direction). For example, in the case where the locations of the perceived target and the environmental interference are different, if the location of the perceived target obtained in the second round of testing is different from the location of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0273] Method 6: Identification based on any pairwise combination of the above variables (e.g., {speed, relative distance}). Furthermore, for situations where N perceived targets (e.g., N ≥ 2) have different speeds and / or relative distances, a multi-target perception measurement algorithm is used to jointly identify these N perceived targets using combinations of {speed, relative distance} at adjacent moments.

[0274] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or, the first measurement quantity and the second measurement quantity are reported independently;

[0275] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0276] Specifically, regarding whether the first measurement quantity is reported jointly with other measurement quantities, there are two reporting methods:

[0277] (1) Joint reporting of the first measurement quantity and other measurement quantities. For example, the first measurement quantity is jointly reported with at least one of the following measurement quantities: relative distance (e.g., distance between the sensing receiver and the sensing target), relative delay (e.g., gNB Rx-Tx time difference), angle (e.g., AoA), RSRP, phase, etc.

[0278] The advantage of joint reporting is that it can not only combine the combined reporting quantities at different times to determine the validity of speed measurements at different times, but also track the perception target (for example, the perception server converts the speed value along the direction of the double base angle bisector into the speed value in the x / y / z direction in the Global Coordinate System (GCS) based on the speed along the double base angle bisector, the angle between the perception target and the perception receiver, the relative distance and other measurements, so as to track the perception target).

[0279] (2) The first measurement quantity and other measurement quantities are reported separately and independently, that is, the speed measurement quantity and other positioning measurement quantities are reported separately and independently.

[0280] In some embodiments, the first measurement quantity is reported aperiodically; or, the first measurement quantity is reported periodically.

[0281] For example, in the case of periodic reporting, assuming that the reporting period is T, at least one first measurement quantity is reported once, and each first measurement quantity is calculated using measurement results of M measurement moments (frames, subframes, time slots or OFDM symbols) with equal time intervals.

[0282] Both the non-periodic reporting and the periodic reporting can be performed based on the perception measurement quantity request of the perception server.

[0283] FIG6 is a second flow diagram of a method for reporting measurement values ​​provided in an embodiment of the present disclosure. The method is applied to a perception server. As shown in FIG6 , the method includes the following steps:

[0284] Step 600: Receive a first measurement quantity related to a sensing target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency offset.

[0285] Step 601: Determine perception information of a perception target based on a first measurement quantity.

[0286] Specifically, the first communication device can be a terminal or a network device (such as a base station). In the single-base sensing mode, the first communication device is both a sensing receiver (a device that receives and measures a sensing reference signal) and a sensing transmitter (a device that transmits a sensing reference signal). In the dual-base sensing mode, the first communication device is a sensing receiver.

[0287] The perception reference signal may be a downlink reference signal, a downlink channel, an uplink reference signal, an uplink channel, or a sidelink signal or channel, etc.

[0288] The downlink reference signal may be, for example, a DL PRS, an SSB, a CSI-RS, a DMRS, or a newly defined downlink sensing reference signal (eg, a single carrier signal).

[0289] The downlink channel may be, for example, a PDCCH or a PDSCH.

[0290] The uplink reference signal may be, for example, SRS, SRS-Pos, PUSCH DMRS, or a newly defined uplink perception reference signal.

[0291] The uplink channel may be, for example, PRACH, PUSCH or PUCCH.

[0292] The sidelink signal or channel may be, for example, SL-PRS or SL-PSSCH.

[0293] The first communication device receives and measures a sensing reference signal to obtain a first measurement quantity related to the sensing target. This first measurement quantity includes speed and / or Doppler frequency deviation, also collectively referred to as speed-related measurement quantities. The sensing reference signal measured by the first communication device is transmitted by the second communication device to the sensing target, reflected by the sensing target, and then reaches the first communication device. In the monostatic sensing mode, the first and second communication devices are the same device. In the dual-static sensing mode, the first and second communication devices are different devices.

[0294] After obtaining the first measurement quantity related to the perception target, the first communication device reports the first measurement quantity about the perception target to the perception server (SF). After the perception server receives the first measurement quantity about the perception target reported by the first communication device, it can determine the perception information of the perception target (for example, speed, position, trajectory, etc.) based on the reported information, thereby improving the accuracy of target perception.

[0295] The measurement quantity reporting method provided in the embodiment of the present disclosure reports the first measurement quantity of speed and / or Doppler frequency deviation to the perception server through the first communication device, so that the perception server can obtain speed-type measurement quantities, and then can use the speed-type measurement quantities and other measurement quantities to make joint judgments, thereby improving the accuracy of target perception.

[0296] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0297] Specifically, when reporting the first measurement quantity, different contents may be reported, such as the absolute value of the velocity; or the absolute value of the Doppler frequency shift; or the absolute value of the velocity and velocity direction information; or the absolute value of the Doppler frequency shift and velocity direction information.

[0298] In some embodiments, the reported speed can be a two-dimensional speed or a three-dimensional speed, where the two-dimensional speed is the horizontal speed, and the three-dimensional speed includes the horizontal speed and the vertical speed (the horizontal speed and the vertical speed are the horizontal component and the vertical component of the speed of the perceived target, respectively).

[0299] Similar to velocity, in some embodiments, the reported Doppler frequency deviation may be a two-dimensional Doppler frequency deviation or a three-dimensional Doppler frequency deviation. The two-dimensional Doppler frequency deviation is the horizontal Doppler frequency deviation, and the three-dimensional Doppler frequency deviation includes the horizontal Doppler frequency deviation and the vertical Doppler frequency deviation (the horizontal Doppler frequency deviation and the vertical Doppler frequency deviation are the horizontal and vertical components of the Doppler frequency deviation measured for the perceived target, respectively). The horizontal Doppler frequency deviation can be used to calculate the horizontal velocity, and the vertical Doppler frequency deviation can be used to calculate the vertical velocity.

[0300] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity. For example, when reporting a two-dimensional velocity, the absolute value of the horizontal velocity may be reported; when reporting a three-dimensional velocity, the absolute value of both the horizontal velocity and the vertical velocity may be reported.

[0301] Similar to velocity, in some embodiments, the absolute value of Doppler frequency deviation includes the absolute value of the horizontal Doppler frequency deviation and / or the absolute value of the vertical Doppler frequency deviation. For example, when reporting 2D Doppler frequency deviation, the absolute value of the horizontal Doppler frequency deviation may be reported; when reporting 3D Doppler frequency deviation, the absolute values ​​of both the horizontal and vertical Doppler frequency deviations may be reported.

[0302] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information. For example, when reporting two-dimensional velocity, the horizontal velocity direction information may be reported; when reporting three-dimensional velocity, the horizontal velocity direction information and the vertical velocity direction information may be reported.

[0303] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the true north direction to the velocity direction of the horizontal velocity, as shown by the angle θ in Figure 3. The direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is a vertical upward direction (such as the positive direction of the z-axis in Figure 3) or a vertical downward direction (such as the negative direction of the z-axis in Figure 3).

[0304] In some embodiments, the method further includes: receiving center frequency information of a subcarrier group used to calculate the absolute value of the Doppler frequency offset reported by the first communication device.

[0305] In some embodiments, the method further comprises:

[0306] Receive one or more of the following indication information sent by the first communication device:

[0307] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0308] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0309] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0310] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a LOS link or a NLOS link.

[0311] Specifically, the first communication device may further send indication information related to the first measurement value to the perception server. The perception server may combine the first measurement value reported by the first communication device and the indication information to more accurately determine the perception information of the perception target.

[0312] The sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode. For example, if the first measurement quantity is measured in the monostatic sensing mode, the sensing mode indication information may indicate the monostatic sensing mode; if the first measurement quantity is measured in the dual-static sensing mode, the sensing mode indication information may indicate the dual-static sensing mode.

[0313] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end. When the sensing mode indication information includes identification information, the location information corresponding to the identification information may be notified to the sensing server in advance.

[0314] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0315] Perceiving the location information or identification information of the receiving end;

[0316] a perceptual reference signal index corresponding to the first measurement amount;

[0317] Sense the location information or identification information of the sender.

[0318] When the perception mode indication information includes identification information, the location information corresponding to the identification information may be notified to the perception server in advance.

[0319] The time indication information is used to indicate the measurement time of the first measurement quantity. For example, the first measurement quantity is calculated based on the measurement results of M (M is greater than 1) measurement moments with equal time intervals. The time indication information is used to indicate information of the M measurement moments. The granularity of the measurement moments can be a frame, subframe, time slot, or OFDM symbol, etc.

[0320] In some embodiments, the time indication information includes any of the following:

[0321] The start and end measurement times of the first measurement quantity;

[0322] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0323] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0324] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0325] For example, when the first measurement value is reported aperiodically, the time indication information includes the following two types:

[0326] Time indication information 1: the start measurement time t1 and the end measurement time t2 of the first measurement quantity, wherein the granularity of t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0327] Time indication information 2: the start measurement time t1 of the first measurement quantity, the measurement time interval delta_step, and the number of measurement times M. The granularity of t1 and delta_step includes frame, subframe, time slot, and OFDM symbol index.

[0328] For example, when the first measurement amount is reported periodically, the time indication information includes the following two types:

[0329] Time indication information 3: measurement period T_measure of the first measurement quantity, start measurement time t1 and end measurement time t2 of the first measurement quantity in each measurement period. The granularity of T_measure, t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0330] Time indication information 4: measurement period T_measure of the first measurement quantity, start measurement time t1 of the first measurement quantity in each measurement period, measurement time interval delta_step and number of measurement times M. The granularity of T_measure, t1 and delta_step includes frame, subframe, time slot and OFDM symbol index.

[0331] The quality indication information is used to indicate the quality of the first measurement quantity. For example, in some embodiments, the quality indication information includes one or more of the following:

[0332] Uncertainty of the first measurement quantity;

[0333] At least one of the SINR, RSRP, and RSRPP of the perception reference signal corresponding to the first measurement amount.

[0334] The link indication information is used to indicate whether the link related to the first measurement quantity is a LOS link or a NLOS link. For example, it indicates that the link type (or channel state) of a certain link is LOS or NLOS.

[0335] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0336] Type 1: The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0337] Type 2: Link from the sensing sender to the sensing receiver;

[0338] Type 3: The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0339] The first communication device sends link indication information to the perception server, which may indicate the link type or channel status of any of the above-mentioned links of type 1, type 2, and type 3. For example, it indicates that the link from the perception sender to the perception target is a LOS path or an NLOS path, and indicates that the link from the perception target to the perception receiver is a LOS path or an NLOS path.

[0340] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or, the first measurement quantity and the second measurement quantity are reported independently; and the second measurement quantity is a measurement quantity other than the first measurement quantity.

[0341] In some embodiments, the first measurement quantity is reported aperiodically; or, the first measurement quantity is reported periodically.

[0342] The methods provided in the various embodiments of the present disclosure are based on the same application concept, so the implementation of each method can refer to each other, and the repeated parts will not be repeated.

[0343] The following describes the methods provided in the above embodiments of the present disclosure through examples of specific application scenarios.

[0344] Example 1: Single-base sensing mode.

[0345] For the single-base sensing mode, the first communication device and the second communication device are the same device, for example, a UE or a gNB.

[0346] The operations of the first communication device, the second communication device, and the perception server are respectively as follows:

[0347] On the first communication device side:

[0348] Step 1: The first communication device receives the configuration information of the perception reference signal notified by the perception server. The perception reference signal can be a downlink reference signal (for example, 5G DL PRS, SSB, CSI-RS, DMRS, or a newly defined downlink perception reference signal, such as a single carrier signal) or a downlink channel (for example, 5G PDCCH, PDSCH), an uplink reference signal (for example, 5G SRS, SRS-Pos, PUSCH DMRS, or a newly defined uplink perception reference signal) or an uplink channel (for example, PRACH, PUSCH, PUCCH), or a sidelink signal or channel (for example, SL-PRS, SL-PSSCH).

[0349] Step 2: The first communications device receives and measures the sensing reference signal to obtain speed-related measurements and related information. The first communications device's receiver must identify that the sensing reference signal is transmitted from the second communications device to the sensing target and then reflected from the sensing target before reaching the first communications device (i.e., the first path is the path from the second communications device to the sensing target, and the second path is the path from the sensing target to the first communications device). It is assumed that both the channel from the second communications device to the sensing target and the channel from the sensing target to the first communications device after reflection are LOS channels.

[0350] Step 3: The first communication device reports the speed measurement quantity and related indication information about the perception target to the perception server. The specific definition, reporting method and related indication information of the speed measurement quantity are as follows.

[0351] On the second communication device side:

[0352] Step 1: The second communication device receives configuration information of the perception reference signal notified by the perception server.

[0353] Step 2: The second communications device sends a sensing reference signal.

[0354] On the perception server side:

[0355] Step 1: The perception server sends configuration information of a perception reference signal to the first communication device and the second communication device.

[0356] Step 2: The perception server receives the speed measurement quantity and related indication information about the perception target reported by the first communication device. Specific definitions, reporting methods, and related indication information of the speed measurement quantity are described below.

[0357] Step 3: The perception server determines the final perception information such as the speed, position, and trajectory of the perception target based on the speed measurement quantities and related indication information of the perception target reported by the multiple first communication devices.

[0358] (1) Definition of speed measurement quantities.

[0359] Speed ​​measurement supports at least the following four types of reporting content:

[0360] Report content 1: Absolute value of speed, which includes the absolute value of horizontal speed and / or the absolute value of vertical speed.

[0361] Reporting content 2: Absolute value of Doppler frequency offset. In some embodiments, it further includes effective carrier frequency information, that is, the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency offset. If the perception reference signal is an OFDM signal, assuming that the center frequency of the subcarrier group (subcarrier set) used to calculate the Doppler frequency offset (absolute value) is fc, then fc can be calculated as follows: 1) fc = f0 + Freq_offset, where f0 represents the center frequency of the carrier, and Freq_offset represents the offset value of the center frequency of the subcarrier group used to calculate the Doppler frequency offset relative to the center frequency of the carrier; 2) assuming that the number of subcarriers contained in the subcarrier group used to calculate the Doppler frequency offset is K, and the lowest subcarrier position of the subcarrier group coincides with the center frequency position of the carrier, and the subcarrier spacing is delta_SCS, then fc = f0 + K / 2*delta_SCS.

[0362] Report content 3: absolute value of speed + speed direction information.

[0363] Report content 3.1: Three-dimensional velocity: horizontal velocity and vertical velocity. The horizontal velocity includes the absolute value of the horizontal velocity and the rotation angle from the north direction to the horizontal velocity direction; the vertical velocity includes the absolute value of the vertical velocity and the vertical upward or vertical downward direction.

[0364] Report content 3.2: Two-dimensional velocity (i.e. horizontal velocity): Two-dimensional velocity includes the absolute value of the velocity and the rotation angle from the north direction to the actual measured velocity direction.

[0365] Report 4: Doppler frequency shift absolute value + velocity direction information. The velocity direction information is the same as reported in Report 3 and can include velocity direction information for three-dimensional velocity or two-dimensional velocity. In some embodiments, it further includes effective carrier frequency information, i.e., the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift.

[0366] Note: For Report 1 and Report 3, the range of the absolute velocity value is [0, v_max], where v_max represents the maximum velocity range that the ISAC system can measure (for example, v_max can be 100). The granularity of the absolute velocity value can be {10, 5, 1, 0.1}, and the unit is m / s or km / h. For Report 2 and Report 4, the range of the absolute Doppler frequency deviation value is [0, fd_max], where fd_max represents the maximum Doppler frequency deviation range that the ISAC system can measure (for example, fd_max can be 300). The granularity of the absolute Doppler frequency deviation value can be {10, 5, 1, 0.5}, and the unit is Hz.

[0367] For the single-base sensing mode, the actual measured velocity direction is the radial direction (i.e., the direction of the line from the sensing target to the sensing transmitter / receiver), or the projection of the radial direction in the horizontal dimension.

[0368] The angle in the velocity direction information has a value range of [-180, 180] or [0, 360], a granularity of {1, 0.1}, and a unit of degree.

[0369] One method for calculating the Doppler frequency shift, fd, is as follows: Assuming the ISAC system uses an OFDM waveform, for a particular subcarrier k, the CFRs at times t1 and t2 are H(k, t1) and H(k, t2), respectively. The corresponding phase values ​​are phase1 = phase(H(k, t1)) and phase2 = phase(H(k, t2)). Assuming the difference between phase2 and phase1 does not exceed 2*pi (pi refers to pi), then: 2*pi*fd*(t2-t1) = phase2-phase1; fd = (phase2-phase1) / (2*pi*(t2-t1)).

[0370] Where fd represents the Doppler frequency deviation, the granularity of time t1 and t2 is the OFDM symbol, assuming that the time length of a single OFDM symbol is T_ofdm, t1 = n1*T_ofdm, t2 = n2*T_ofdm, and n1 and n2 represent the absolute index values ​​of the corresponding OFDM symbols, respectively.

[0371] The absolute value of the velocity v and the Doppler frequency shift fd satisfy the following calculation relationship: v = c*fd / fc, where c represents the speed of light (3.0e8 m / s) and fc represents the effective carrier frequency (i.e., the center frequency of the subcarrier group used to calculate the Doppler frequency shift).

[0372] (2) Regarding the reporting method of speed measurement quantities.

[0373] First, regarding whether speed measurements are reported jointly with other measurements, at least the following two reporting methods are supported:

[0374] a. Joint reporting. For example, speed measurements may be reported jointly with at least one of the following: relative distance (e.g., distance between the sensing receiver and the sensing target), relative latency (e.g., gNB Rx-Tx time difference), angle (e.g., AoA), RSRP, phase, etc.

[0375] The advantage of joint reporting is that it can combine the combined reporting quantities at different times to determine the validity of speed measurements at different times, and can also track perception targets (for example, the perception server converts the speed value along the direction of the double base angle bisector into the speed value in the x / y / z direction under the GCS based on the speed along the double base angle bisector, the angle between the perception target and the perception receiver, the relative distance and other measurements, so as to track the perception target).

[0376] b. The first measurement quantity and other measurement quantities are reported separately, that is, the speed measurement quantity and other positioning measurement quantities are reported separately.

[0377] Second, for speed measurements, aperiodic or periodic reporting is supported, supporting at least the following two methods:

[0378] a. Non-periodic reporting: For example, speed measurement quantities are calculated using the measurement results of M measurement moments (frames, subframes, time slots, or OFDM symbols) with equal time intervals.

[0379] b. Periodic reporting. For example, if the reporting period is T, at least one speed measurement is reported once, and each speed measurement is calculated using the measurement results of M measurement moments (frames, subframes, time slots, or OFDM symbols) with equal time intervals.

[0380] Both the non-periodic reporting and the periodic reporting can be performed based on the perception measurement quantity request of the perception server.

[0381] (3) Relevant indication information about speed-related measurement quantities.

[0382] First, the sensing mode indication information for speed-related measurements: indicating whether the sensing mode is single-base sensing mode or dual-base sensing mode. For single-base sensing mode, the indication information further includes the location information or identification information of the sensing receiver (also the sensing transmitter). When the indication information includes identification information, the location information corresponding to the identification information can be notified to the sensing server in advance.

[0383] Second, the time indication information of speed-related measurement quantities.

[0384] For non-periodic reporting, the time indication information includes the following two methods:

[0385] a. The start and end time t1 and t2 of speed measurement quantities, where the granularity of t1 and t2 includes frame, subframe, time slot, and OFDM symbol index.

[0386] b. The start measurement time t1 of the speed measurement quantity, the measurement time interval delta_step, and the number of measurement times M. The granularity of t1 and delta_step includes frame, subframe, time slot, and OFDM symbol index.

[0387] For periodic reporting, the time indication information includes the following two methods:

[0388] a. The measurement period T_measure of the speed measurement quantity, the start measurement time t1 and the end measurement time t2 within each measurement period. The granularity of T_measure, t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0389] b. The measurement period T_measure of the speed measurement quantity, the start measurement time t1, the measurement time interval delta_step and the number of measurement times M in each measurement period. The granularity of T_measure, t1 and delta_step includes frame, subframe, time slot and OFDM symbol index.

[0390] Third, the quality indication information of the speed-related measurement quantity includes uncertainty (Uncertainty) and SINR / RSRP / RSRPP. Among them, uncertainty (Uncertainty) represents the error range between the speed-related measurement quantity and the ideal value.

[0391] Fourth, link indication information of speed-related measurement quantities. Indicates the channel status of at least one of the following three link types:

[0392] Type 1: The link from the sensing sender to the sensing target (LOS path or NLOS path), and the link from the sensing target to the sensing receiver (LOS path or NLOS path).

[0393] Type 2: The link from the sensing sender to the sensing receiver (LOS path or NLOS path).

[0394] Type 3: The link from the sensing sender to the environmental target (LOS path or NLOS path), and the link from the environmental target to the sensing receiver (LOS path or NLOS path).

[0395] Type 1 and type 3 both include two links, type 2 only has one link, and all links include two channel states: LOS and NLOS.

[0396] Among them, link type 1 is the link type that ISAC is concerned about, and link type 2 and link type 3 are both link types that interfere with ISAC. The receiver uses an algorithm to identify and eliminate the impact.

[0397] The following is a method for identifying link type 1, which satisfies two basic assumptions: first, space-time consistency; second, at least one channel characteristic differs between type 1 and type 2 or type 3 links: for example, latency, power, phase from different polarized transmit antennas, velocity, and perceived target location. The identification method includes the following steps:

[0398] Step 1: During simulation or actual testing, without placing any sensing targets, perform the first round of channel information testing.

[0399] Step 2: After the sensor target is manually placed, a second round of channel information testing is performed. In practical applications, these channel information tests can be performed periodically, and the recognition result obtained from the most recent test is used as the current recognition result.

[0400] Among them, under the basic assumption that the simulation or test environment meets the space-time consistency, there is a difference in at least one channel characteristic between the Type 1 and Type 2 / Type 3 links in the first and second rounds of testing: for example, there are differences in delay, power, phase from different polarized transmitting antennas, speed and perceived target position.

[0401] Based on the difference, link type 1 is identified. It should be noted that the following six methods can be used by the first communication device to identify link type 1, or by the perception server to identify link type 1 after the first communication device reports the first measurement value (and related indication information).

[0402] Method 1: Latency-based identification. For example, if the latency of the perceived target and the environmental interference (i.e., the environmental target) is different, if the latency of the perceived target obtained in the second round of testing is different from the latency of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0403] Method 2: Power-based identification. For example, based on the CIR and the relative threshold value relative to the maximum power path, the identified link is determined to be a Type 1 link.

[0404] Method 3: Identification based on the phase or phase difference of different polarized transmit antennas. For example, if the phase or phase difference of the different polarized transmit antennas of the sensing target and the environmental interference are different, if the phase or phase difference of the sensing target from the different polarized transmit antennas obtained in the second round of testing is different from the phase or phase difference of any environmental interference from the different polarized transmit antennas in the first round of testing, then the link corresponding to the sensing target can be determined to be a Type 1 link.

[0405] Method 4: Speed-based recognition. For example, in situations where the speeds of the perceived target and the environmental interference are different (for example, the perceived target is moving while the environmental interference remains stationary), the correlation between the position and speed at adjacent moments can be used to assist in identifying the perceived target and the environmental object.

[0406] Method 5: Identification based on the perceived target location (where location can be relative distance or relative distance + relative direction). For example, in the case where the locations of the perceived target and the environmental interference are different, if the location of the perceived target obtained in the second round of testing is different from the location of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0407] Method 6: Identification based on any pairwise combination of the above variables (e.g., {speed, relative distance}). Furthermore, for situations where N perceived targets (e.g., N ≥ 2) have different speeds and / or relative distances, a multi-target perception measurement algorithm is used to jointly identify these N perceived targets using combinations of {speed, relative distance} at adjacent moments.

[0408] Example 2: Dual-base sensing mode.

[0409] For the dual-base sensing mode, the first communication device and the second communication device are different devices, for example: the first communication device is a UE and the second communication device is a gNB; or, the first communication device is a gNB and the second communication device is a UE; or, the first communication device and the second communication device are two different UEs; or, the first communication device and the second communication device are two different gNBs.

[0410] The operations of the first communication device, the second communication device, and the perception server are respectively as follows:

[0411] On the first communication device side:

[0412] Step 1: The first communication device receives the configuration information of the perception reference signal notified by the perception server. The perception reference signal can be a downlink reference signal (for example, 5G DL PRS, SSB, CSI-RS, DMRS, or a newly defined downlink perception reference signal, such as a single carrier signal) or a downlink channel (for example, 5G PDCCH, PDSCH), an uplink reference signal (for example, 5G SRS, SRS-Pos, PUSCH DMRS, or a newly defined uplink perception reference signal) or an uplink channel (for example, PRACH, PUSCH, PUCCH), or a sidelink signal or channel (for example, SL-PRS, SL-PSSCH).

[0413] Step 2: The first communications device receives and measures the sensing reference signal to obtain speed-related measurements and related information. The first communications device's receiver must identify that the sensing reference signal is transmitted from the second communications device to the sensing target and then reflected from the sensing target before reaching the first communications device (i.e., the first path is the path from the second communications device to the sensing target, and the second path is the path from the sensing target to the first communications device). It is assumed that both the channel from the second communications device to the sensing target and the channel from the sensing target to the first communications device after reflection are LOS channels.

[0414] Step 3: The first communication device reports the speed measurement quantity and related indication information about the perception target to the perception server. The specific definition, reporting method and related indication information of the speed measurement quantity are as follows.

[0415] On the second communication device side:

[0416] Step 1: The second communication device receives configuration information of the perception reference signal notified by the perception server.

[0417] Step 2: The second communications device sends a sensing reference signal.

[0418] On the perception server side:

[0419] Step 1: The perception server sends configuration information of a perception reference signal to the first communication device and the second communication device.

[0420] Step 2: The perception server receives the speed measurement quantity and related indication information about the perception target reported by the first communication device. Specific definitions, reporting methods, and related indication information of the speed measurement quantity are described below.

[0421] Step 3: The perception server determines the final perception information such as the speed, position, and trajectory of the perception target based on the speed measurement quantities and related indication information of the perception target reported by the multiple first communication devices.

[0422] (1) Definition of speed measurement quantities.

[0423] Speed ​​measurement supports at least the following four types of reporting content:

[0424] Report content 1: Absolute value of speed, which includes the absolute value of horizontal speed and / or the absolute value of vertical speed.

[0425] Reporting content 2: Absolute value of Doppler frequency offset. In some embodiments, it further includes effective carrier frequency information, that is, the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency offset. If the perception reference signal is an OFDM signal, assuming that the center frequency of the subcarrier group (subcarrier set) used to calculate the Doppler frequency offset (absolute value) is fc, then fc can be calculated as follows: 1) fc = f0 + Freq_offset, where f0 represents the center frequency of the carrier, and Freq_offset represents the offset value of the center frequency of the subcarrier group used to calculate the Doppler frequency offset relative to the center frequency of the carrier; 2) assuming that the number of subcarriers contained in the subcarrier group used to calculate the Doppler frequency offset is K, and the lowest subcarrier position of the subcarrier group coincides with the center frequency position of the carrier, and the subcarrier spacing is delta_SCS, then fc = f0 + K / 2*delta_SCS.

[0426] Report content 3: absolute value of speed + speed direction information.

[0427] Report content 3.1: Three-dimensional velocity: horizontal velocity and vertical velocity. The horizontal velocity includes the absolute value of the horizontal velocity and the rotation angle from the north direction to the horizontal velocity direction; the vertical velocity includes the absolute value of the vertical velocity and the vertical upward or vertical downward direction.

[0428] Report content 3.2: Two-dimensional velocity (i.e. horizontal velocity): Two-dimensional velocity includes the absolute value of the velocity and the rotation angle from the north direction to the actual measured velocity direction.

[0429] Report 4: Doppler frequency shift absolute value + velocity direction information. The velocity direction information is the same as reported in Report 3 and can include velocity direction information for three-dimensional velocity or two-dimensional velocity. In some embodiments, it further includes effective carrier frequency information, i.e., the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift.

[0430] Note: For Report 1 and Report 3, the range of the absolute velocity value is [0, v_max], where v_max represents the maximum velocity range that the ISAC system can measure (for example, v_max can be 100). The granularity of the absolute velocity value can be {10, 5, 1, 0.1}, and the unit is m / s or km / h. For Report 2 and Report 4, the range of the absolute Doppler frequency deviation value is [0, fd_max], where fd_max represents the maximum Doppler frequency deviation range that the ISAC system can measure (for example, fd_max can be 300). The granularity of the absolute Doppler frequency deviation value can be {10, 5, 1, 0.5}, and the unit is Hz.

[0431] For the bistatic sensing mode, the actual measured velocity direction is along the bistatic angle bisector.

[0432] The angle in the velocity direction information has a value range of [-180, 180] or [0, 360], a granularity of {1, 0.1}, and a unit of degree.

[0433] One method for calculating the Doppler frequency shift, fd, is as follows: Assuming the ISAC system uses an OFDM waveform, for a particular subcarrier k, the CFRs at times t1 and t2 are H(k, t1) and H(k, t2), respectively. The corresponding phase values ​​are phase1 = phase(H(k, t1)) and phase2 = phase(H(k, t2)). Assuming the difference between phase2 and phase1 does not exceed 2*pi (pi refers to pi), then: 2*pi*fd*(t2-t1) = phase2-phase1; fd = (phase2-phase1) / (2*pi*(t2-t1)).

[0434] Where fd represents the Doppler frequency deviation, the granularity of time t1 and t2 is the OFDM symbol, assuming that the time length of a single OFDM symbol is T_ofdm, t1 = n1*T_ofdm, t2 = n2*T_ofdm, and n1 and n2 represent the absolute index values ​​of the corresponding OFDM symbols, respectively.

[0435] The absolute value of the velocity v and the Doppler frequency shift fd satisfy the following calculation relationship: v = c*fd / fc, where c represents the speed of light (3.0e8 m / s) and fc represents the effective carrier frequency (i.e., the center frequency of the subcarrier group used to calculate the Doppler frequency shift).

[0436] (2) Regarding the reporting method of speed measurement quantities.

[0437] First, regarding whether speed measurements are reported jointly with other measurements, at least the following two reporting methods are supported:

[0438] a. Joint reporting. For example, speed measurements may be reported jointly with at least one of the following: relative distance (e.g., distance between the sensing receiver and the sensing target), relative latency (e.g., gNB Rx-Tx time difference), angle (e.g., AoA), RSRP, phase, etc.

[0439] The advantage of joint reporting is that it can combine the combined reporting quantities at different times to determine the validity of speed measurements at different times, and can also track perception targets (for example, the perception server converts the speed value along the direction of the double base angle bisector into the speed value in the x / y / z direction under the GCS based on the speed along the double base angle bisector, the angle between the perception target and the perception receiver, the relative distance and other measurements, so as to track the perception target).

[0440] b. The first measurement quantity and other measurement quantities are reported separately, that is, the speed measurement quantity and other positioning measurement quantities are reported separately.

[0441] Second, for speed measurements, aperiodic or periodic reporting is supported, supporting at least the following two methods:

[0442] a. Non-periodic reporting: For example, speed measurement quantities are calculated using the measurement results of M measurement moments (frames, subframes, time slots, or OFDM symbols) with equal time intervals.

[0443] b. Periodic reporting. For example, if the reporting period is T, at least one speed measurement is reported once, and each speed measurement is calculated using the measurement results of M measurement moments (frames, subframes, time slots, or OFDM symbols) with equal time intervals.

[0444] Both the non-periodic reporting and the periodic reporting can be performed based on the perception measurement quantity request of the perception server.

[0445] (3) Relevant indication information about speed-related measurement quantities.

[0446] First, the sensing mode indication information for speed-related measurement quantities: indicating whether the sensing mode is monostatic or dual-static. For dual-static sensing mode, this indication information further includes the location information or identification information of the sensing receiver, the sensing reference signal index, and the location information or identification information of the sensing transmitter. When the indication information includes identification information, the location information corresponding to the identification information can be notified to the sensing server in advance.

[0447] Second, the time indication information of speed-related measurement quantities.

[0448] For non-periodic reporting, the time indication information includes the following two methods:

[0449] a. The start and end time t1 and t2 of speed measurement quantities, where the granularity of t1 and t2 includes frame, subframe, time slot, and OFDM symbol index.

[0450] b. The start measurement time t1 of the speed measurement quantity, the measurement time interval delta_step, and the number of measurement times M. The granularity of t1 and delta_step includes frame, subframe, time slot, and OFDM symbol index.

[0451] For periodic reporting, the time indication information includes the following two methods:

[0452] a. The measurement period T_measure of the speed measurement quantity, the start measurement time t1 and the end measurement time t2 within each measurement period. The granularity of T_measure, t1 and t2 includes frame, subframe, time slot and OFDM symbol index.

[0453] b. The measurement period T_measure of the speed measurement quantity, the start measurement time t1, the measurement time interval delta_step and the number of measurement times M in each measurement period. The granularity of T_measure, t1 and delta_step includes frame, subframe, time slot and OFDM symbol index.

[0454] Third, the quality indication information of the speed-related measurement quantity includes uncertainty (Uncertainty) and SINR / RSRP / RSRPP. Among them, uncertainty (Uncertainty) represents the error range between the speed-related measurement quantity and the ideal value.

[0455] Fourth, link indication information of speed-related measurement quantities. Indicates the channel status of at least one of the following three link types:

[0456] Type 1: The link from the sensing sender to the sensing target (LOS path or NLOS path), and the link from the sensing target to the sensing receiver (LOS path or NLOS path).

[0457] Type 2: The link from the sensing sender to the sensing receiver (LOS path or NLOS path).

[0458] Type 3: The link from the sensing sender to the environmental target (LOS path or NLOS path), and the link from the environmental target to the sensing receiver (LOS path or NLOS path).

[0459] Type 1 and type 3 both include two links, type 2 only has one link, and all links include two channel states: LOS and NLOS.

[0460] Among them, link type 1 is the link type that ISAC is concerned about, and link type 2 and link type 3 are both link types that interfere with ISAC. The receiver uses an algorithm to identify and eliminate the impact.

[0461] The following is a method for identifying link type 1, which satisfies two basic assumptions: first, space-time consistency; second, at least one channel characteristic differs between type 1 and type 2 or type 3 links: for example, latency, power, phase from different polarized transmit antennas, velocity, and perceived target location. The identification method includes the following steps:

[0462] Step 1: During simulation or actual testing, without placing any sensing targets, perform the first round of channel information testing.

[0463] Step 2: After the sensor target is manually placed, a second round of channel information testing is performed. In practical applications, these channel information tests can be performed periodically, and the recognition result obtained from the most recent test is used as the current recognition result.

[0464] Among them, under the basic assumption that the simulation or test environment meets the space-time consistency, there is a difference in at least one channel characteristic between the Type 1 and Type 2 / Type 3 links in the first and second rounds of testing: for example, there are differences in delay, power, phase from different polarized transmitting antennas, speed and perceived target position.

[0465] Based on the difference, link type 1 is identified. It should be noted that the following six methods can be used by the first communication device to identify link type 1, or by the perception server to identify link type 1 after the first communication device reports the first measurement value (and related indication information).

[0466] Method 1: Latency-based identification. For example, if the latency of the perceived target and the environmental interference (i.e., the environmental target) is different, if the latency of the perceived target obtained in the second round of testing is different from the latency of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0467] Method 2: Power-based identification. For example, based on the CIR and the relative threshold value relative to the maximum power path, the identified link is determined to be a Type 1 link.

[0468] Method 3: Identification based on the phase or phase difference of different polarized transmit antennas. For example, if the phase or phase difference of the different polarized transmit antennas of the sensing target and the environmental interference are different, if the phase or phase difference of the sensing target from the different polarized transmit antennas obtained in the second round of testing is different from the phase or phase difference of any environmental interference from the different polarized transmit antennas in the first round of testing, then the link corresponding to the sensing target can be determined to be a Type 1 link.

[0469] Method 4: Speed-based recognition. For example, in situations where the speeds of the perceived target and the environmental interference are different (for example, the perceived target is moving while the environmental interference remains stationary), the correlation between the position and speed at adjacent moments can be used to assist in identifying the perceived target and the environmental object.

[0470] Method 5: Identification based on the perceived target location (where location can be relative distance or relative distance + relative direction). For example, in the case where the locations of the perceived target and the environmental interference are different, if the location of the perceived target obtained in the second round of testing is different from the location of any environmental interference in the first round of testing, then the link corresponding to the perceived target can be determined to be a Type 1 link.

[0471] Method 6: Identification based on any pairwise combination of the above variables (e.g., {speed, relative distance}). Furthermore, for situations where N perceived targets (e.g., N ≥ 2) have different speeds and / or relative distances, a multi-target perception measurement algorithm is used to jointly identify these N perceived targets using combinations of {speed, relative distance} at adjacent moments.

[0472] The methods and devices provided in the various embodiments of the present disclosure are based on the same application concept. Since the methods and devices solve problems based on similar principles, the implementation of the devices and methods can refer to each other, and the repeated parts will not be repeated.

[0473] FIG7 is a schematic structural diagram of a first communication device provided in an embodiment of the present disclosure. As shown in FIG7 , the first communication device includes a memory 720 , a transceiver 710 , and a processor 700 ; wherein the processor 700 and the memory 720 may also be physically arranged separately.

[0474] The memory 720 is used to store computer programs; the transceiver 710 is used to send and receive data under the control of the processor 700.

[0475] Specifically, the transceiver 710 is configured to receive and send data under the control of the processor 700 .

[0476] In FIG7 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 700 and memory represented by memory 720. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this disclosure. The bus interface provides an interface. The transceiver 710 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0477] The processor 700 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 700 when performing operations.

[0478] The processor 700 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor may also adopt a multi-core architecture.

[0479] The processor 700 calls the computer program stored in the memory 720 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: measuring the perception reference signal to obtain a first measurement quantity related to the perception target, the first measurement quantity including speed and / or Doppler frequency deviation; and reporting the first measurement quantity to the perception server.

[0480] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0481] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0482] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0483] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0484] In some embodiments, the method further comprises:

[0485] Report the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift to the perception server.

[0486] In some embodiments, the method further comprises:

[0487] Send one or more of the following instructions to the awareness server:

[0488] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0489] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0490] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0491] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0492] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0493] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0494] Perceiving the location information or identification information of the receiving end;

[0495] a perceptual reference signal index corresponding to the first measurement amount;

[0496] Sense the location information or identification information of the sender.

[0497] In some embodiments, the time indication information includes any of the following:

[0498] The start and end measurement times of the first measurement quantity;

[0499] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0500] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0501] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0502] In some embodiments, the quality indicator information includes one or more of the following:

[0503] Uncertainty of the first measured quantity;

[0504] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0505] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0506] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0507] The link from the sensing sender to the sensing receiver;

[0508] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0509] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0510] The first measurement quantity and the second measurement quantity are reported independently;

[0511] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0512] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0513] The first measurement quantity is reported periodically.

[0514] FIG8 is a schematic diagram of the structure of a perception server provided in an embodiment of the present disclosure. As shown in FIG8 , the perception server includes a memory 820 , a transceiver 810 , and a processor 800 ; wherein the processor 800 and the memory 820 may also be physically arranged separately.

[0515] The memory 820 is used to store computer programs; the transceiver 810 is used to send and receive data under the control of the processor 800.

[0516] Specifically, the transceiver 810 is configured to receive and send data under the control of the processor 800 .

[0517] In FIG8 , the bus architecture may include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors represented by processor 800 and memory represented by memory 820. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described in this disclosure. The bus interface provides an interface. The transceiver 810 may be a plurality of components, namely, a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, or the like.

[0518] The processor 800 is responsible for managing the bus architecture and general processing, and the memory 820 can store data used by the processor 800 when performing operations.

[0519] The processor 800 may be a CPU, an ASIC, an FPGA, or a CPLD, and the processor may also adopt a multi-core architecture.

[0520] The processor 800 calls the computer program stored in the memory 820 to execute any of the methods provided in the embodiments of the present disclosure according to the obtained executable instructions, for example: receiving a first measurement quantity related to a perception target reported by a first communication device, the first measurement quantity including speed and / or Doppler frequency deviation; and determining perception information of the perception target based on the first measurement quantity.

[0521] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0522] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0523] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0524] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0525] In some embodiments, the method further comprises:

[0526] Receive center frequency information of a subcarrier group used for calculating the absolute value of the Doppler frequency shift reported by the first communication device.

[0527] In some embodiments, the method further comprises:

[0528] Receive one or more of the following indication information sent by the first communication device:

[0529] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0530] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0531] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0532] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0533] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0534] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0535] Perceiving the location information or identification information of the receiving end;

[0536] a perceptual reference signal index corresponding to the first measurement amount;

[0537] Sense the location information or identification information of the sender.

[0538] In some embodiments, the time indication information includes any of the following:

[0539] The start and end measurement times of the first measurement quantity;

[0540] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0541] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0542] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0543] In some embodiments, the quality indicator information includes one or more of the following:

[0544] Uncertainty of the first measured quantity;

[0545] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0546] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0547] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0548] The link from the sensing sender to the sensing receiver;

[0549] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0550] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0551] The first measurement quantity and the second measurement quantity are reported independently;

[0552] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0553] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0554] The first measurement quantity is reported periodically.

[0555] It should be noted here that the above-mentioned first communication device and perception server provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0556] FIG9 is a schematic diagram of a structure of a measurement quantity reporting device according to an embodiment of the present disclosure. As shown in FIG9 , the device includes:

[0557] An acquiring unit 900 is configured to measure a sensing reference signal to acquire a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency shift;

[0558] The reporting unit 910 is configured to report the first measurement value to the perception server.

[0559] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0560] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0561] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0562] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0563] In some embodiments, the reporting unit 910 is further configured to:

[0564] Report the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift to the perception server.

[0565] In some embodiments, the reporting unit 910 is further configured to:

[0566] Send one or more of the following instructions to the awareness server:

[0567] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0568] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0569] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0570] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0571] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0572] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0573] Perceiving the location information or identification information of the receiving end;

[0574] a perceptual reference signal index corresponding to the first measurement amount;

[0575] Sense the location information or identification information of the sender.

[0576] In some embodiments, the time indication information includes any of the following:

[0577] The start and end measurement times of the first measurement quantity;

[0578] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0579] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0580] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0581] In some embodiments, the quality indicator information includes one or more of the following:

[0582] Uncertainty of the first measured quantity;

[0583] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0584] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0585] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0586] The link from the sensing sender to the sensing receiver;

[0587] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0588] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0589] The first measurement quantity and the second measurement quantity are reported independently;

[0590] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0591] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0592] The first measurement quantity is reported periodically.

[0593] FIG10 is a second structural diagram of a measurement quantity reporting device provided in an embodiment of the present disclosure. As shown in FIG10 , the device includes:

[0594] The receiving unit 1000 is configured to receive a first measurement value related to a perception target reported by a first communication device, where the first measurement value includes a speed and / or a Doppler frequency deviation;

[0595] The determining unit 1010 is configured to determine perception information of a perception target based on the first measurement amount.

[0596] In some embodiments, the reported content of the first measurement quantity includes one or more of the following: an absolute value of velocity, an absolute value of Doppler frequency offset, and velocity direction information.

[0597] In some embodiments, the absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

[0598] In some embodiments, the velocity direction information includes horizontal velocity direction information and / or vertical velocity direction information.

[0599] In some embodiments, the direction information of the horizontal velocity is used to indicate the rotation angle from the north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is vertically upward or vertically downward.

[0600] In some embodiments, the receiving unit 1000 is further configured to:

[0601] Receive center frequency information of a subcarrier group used for calculating the absolute value of the Doppler frequency shift reported by the first communication device.

[0602] In some embodiments, the receiving unit 1000 is further configured to:

[0603] Receive one or more of the following indication information sent by the first communication device:

[0604] Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode;

[0605] Time indication information, where the time indication information is used to indicate the measurement time of the first measurement quantity;

[0606] Quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity;

[0607] Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

[0608] In some embodiments, when the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of the sensing receiving end, where the sensing receiving end is the sensing transmitting end.

[0609] In some embodiments, when the sensing mode indication information indicates the dual-static sensing mode, the sensing mode indication information further includes one or more of the following:

[0610] Perceiving the location information or identification information of the receiving end;

[0611] a perceptual reference signal index corresponding to the first measurement amount;

[0612] Sense the location information or identification information of the sender.

[0613] In some embodiments, the time indication information includes any of the following:

[0614] The start and end measurement times of the first measurement quantity;

[0615] the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity;

[0616] a measurement cycle of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement cycle;

[0617] The measurement cycle of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement cycle.

[0618] In some embodiments, the quality indicator information includes one or more of the following:

[0619] Uncertainty of the first measured quantity;

[0620] The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

[0621] In some embodiments, the link related to the first measurement quantity includes any one of the following:

[0622] The link from the sensing sender to the sensing target, and the link from the sensing target to the sensing receiver;

[0623] The link from the sensing sender to the sensing receiver;

[0624] The link from the sensing sender to the environmental target, and the link from the environmental target to the sensing receiver.

[0625] In some embodiments, the first measurement quantity and the second measurement quantity are reported jointly; or,

[0626] The first measurement quantity and the second measurement quantity are reported independently;

[0627] The second measurement quantity is a measurement quantity other than the first measurement quantity.

[0628] In some embodiments, the first measurement quantity is reported aperiodically; or,

[0629] The first measurement quantity is reported periodically.

[0630] It should be noted that the division of units in the embodiments of the present disclosure is schematic and is merely a logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present disclosure may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0631] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present disclosure. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0632] It should be noted here that the above-mentioned device provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0633] On the other hand, an embodiment of the present disclosure further provides a non-transitory readable storage medium, wherein the non-transitory readable storage medium stores a computer program, and the computer program is used to enable a processor to execute the measurement quantity reporting method provided by the above embodiments.

[0634] It should be noted here that the non-transitory readable storage medium provided in the embodiment of the present disclosure can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0635] The non-transitory readable storage medium can be any available medium or data storage device that can be accessed by a computer, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid-state drives (SSDs)), etc.

[0636] The technical solutions provided by the embodiments of the present disclosure can be applicable to a variety of systems, especially 5G systems and 6G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, etc. These various systems include terminal devices and network devices. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), a 6G system, etc.

[0637] The terminal involved in the embodiments of the present disclosure may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem. In different systems, the name of the terminal may also be different. For example, in a 5G system, the terminal may be called User Equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present disclosure.

[0638] The network device involved in the embodiments of the present disclosure may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be called another name. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate the attribute management of the air interface. For example, the network device involved in the embodiments of the present disclosure may be a base transceiver station (BTS) in the Global System for Mobile communications (GSM) or code division multiple access (CDMA), a network device (NodeB) in wide-band code division multiple access (WCDMA), an evolutionary Node B (eNB or e-NodeB) in the long term evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), a home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in the embodiments of the present disclosure. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0639] Network devices and terminals can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be single-user MIMO (SU-MIMO) or multi-user MIMO (MU-MIMO). Depending on the form and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO. It can also be diversity transmission, precoded transmission, or beamforming transmission.

[0640] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) containing computer-usable program code.

[0641] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0642] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0643] These processor-executable instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0644] Obviously, those skilled in the art may make various changes and modifications to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is intended to include these modifications and variations.

Claims

1. A measurement quantity reporting method, applied to a first communication device, comprising: Measuring a sensing reference signal to obtain a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency offset; Report the first measurement amount to the perception server.

2. The measurement quantity reporting method according to claim 1, wherein: The reported content of the first measurement quantity includes one or more of the following: velocity absolute value, Doppler frequency offset absolute value, and velocity direction information.

3. The measurement quantity reporting method according to claim 2, wherein: The absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

4. The measurement quantity reporting method according to claim 2 or 3, wherein: The speed direction information includes horizontal speed direction information and / or vertical speed direction information.

5. The measurement quantity reporting method according to claim 4, wherein: The direction information of the horizontal velocity is used to indicate the rotation angle from the due north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is a vertical upward direction or a vertical downward direction.

6. The measurement quantity reporting method according to claim 2, wherein: The method further comprises: Reporting the center frequency information of the subcarrier group used to calculate the absolute value of the Doppler frequency shift to the perception server.

7. The measurement quantity reporting method according to claim 1 or 2, wherein: The method further comprises: Send one or more of the following instructions to the perception server: Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode; Time indication information, where the time indication information is used to indicate a measurement time of the first measurement quantity; quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity; Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

8. The measurement quantity reporting method according to claim 7, wherein: In the case where the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of a sensing receiving end, where the sensing receiving end is the sensing transmitting end.

9. The measurement quantity reporting method according to claim 7, wherein: In a case where the sensing mode indication information indicates a dual-static sensing mode, the sensing mode indication information further includes one or more of the following: Perceiving the location information or identification information of the receiving end; a perceptual reference signal index corresponding to the first measurement amount; Sense the location information or identification information of the sender.

10. The measurement quantity reporting method according to claim 7, wherein: The time indication information includes any of the following: the start and end times of measurement of the first measurement quantity; the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity; a measurement period of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement period; The measurement period of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement period.

11. The measurement quantity reporting method according to claim 7, wherein: The quality indication information includes one or more of the following: the uncertainty of the first measurement quantity; The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

12. The measurement quantity reporting method according to claim 7, wherein: The link related to the first measurement quantity includes any one of the following: A link from a sensing sending end to the sensing target, and a link from the sensing target to a sensing receiving end; The link from the sensing sender to the sensing receiver; A link from a sensing sending end to an environmental target, and a link from the environmental target to a sensing receiving end.

13. The measurement quantity reporting method according to claim 1 or 2, wherein: The first measurement quantity and the second measurement quantity are reported jointly; or, The first measurement quantity and the second measurement quantity are reported independently; The second measurement quantity is a measurement quantity other than the first measurement quantity.

14. The measurement quantity reporting method according to claim 1 or 2, wherein: The first measurement amount is reported aperiodically; or The first measurement quantity is reported periodically.

15. A measurement quantity reporting method, applied to a perception server, comprising: receiving a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency deviation; The perception information of the perception target is determined based on the first measurement amount.

16. The measurement quantity reporting method according to claim 15, wherein: The reported content of the first measurement quantity includes one or more of the following: velocity absolute value, Doppler frequency offset absolute value, and velocity direction information.

17. The measurement quantity reporting method according to claim 16, wherein: The absolute value of the velocity includes the absolute value of the horizontal velocity and / or the absolute value of the vertical velocity.

18. The measurement quantity reporting method according to claim 16 or 17, wherein: The speed direction information includes horizontal speed direction information and / or vertical speed direction information.

19. The measurement quantity reporting method according to claim 18, wherein: The direction information of the horizontal velocity is used to indicate the rotation angle from the due north direction to the velocity direction of the horizontal velocity, and the direction information of the vertical velocity is used to indicate whether the velocity direction of the vertical velocity is a vertical upward direction or a vertical downward direction.

20. The measurement quantity reporting method according to claim 16, wherein: The method further comprises: Receive center frequency information of a subcarrier group used to calculate the absolute value of the Doppler frequency shift reported by the first communication device.

21. The measurement quantity reporting method according to claim 15 or 16, wherein: The method further comprises: Receive one or more of the following indication information sent by the first communication device: Sensing mode indication information, where the sensing mode indication information is used to indicate whether the sensing mode corresponding to the first measurement quantity is a monostatic sensing mode or a dual-static sensing mode; Time indication information, where the time indication information is used to indicate a measurement time of the first measurement quantity; quality indication information, where the quality indication information is used to indicate the quality of the first measurement quantity; Link indication information, where the link indication information is used to indicate whether the link related to the first measurement quantity is a line-of-sight (LOS) link or a non-line-of-sight (NLOS) link.

22. The measurement quantity reporting method according to claim 21, wherein: In the case where the sensing mode indication information indicates a single-base sensing mode, the sensing mode indication information further includes location information or identification information of a sensing receiving end, where the sensing receiving end is the sensing transmitting end.

23. The measurement quantity reporting method according to claim 21, wherein: In a case where the sensing mode indication information indicates a dual-static sensing mode, the sensing mode indication information further includes one or more of the following: Perceiving the location information or identification information of the receiving end; a perceptual reference signal index corresponding to the first measurement amount; Sense the location information or identification information of the sender.

24. The measurement quantity reporting method according to claim 21, wherein: The time indication information includes any of the following: the start and end times of measurement of the first measurement quantity; the start measurement time, measurement time interval, and number of measurement times of the first measurement quantity; a measurement period of the first measurement quantity, and a start time and an end time of measurement of the first measurement quantity in each measurement period; The measurement period of the first measurement quantity, and the start measurement time, measurement time interval and number of measurement times of the first measurement quantity in each measurement period.

25. The measurement quantity reporting method according to claim 21, wherein: The quality indication information includes one or more of the following: the uncertainty of the first measurement quantity; The first measurement amount corresponds to at least one of a signal to interference and noise ratio (SINR) of a perception reference signal, a reference signal received power (RSRP), and a reference signal received power per path (RSRPP).

26. The measurement quantity reporting method according to claim 21, wherein: The link related to the first measurement quantity includes any one of the following: A link from a sensing sending end to the sensing target, and a link from the sensing target to a sensing receiving end; The link from the sensing sender to the sensing receiver; A link from a sensing sending end to an environmental target, and a link from the environmental target to a sensing receiving end.

27. The measurement quantity reporting method according to claim 15 or 16, wherein: The first measurement quantity and the second measurement quantity are reported jointly; or, The first measurement quantity and the second measurement quantity are reported independently; The second measurement quantity is a measurement quantity other than the first measurement quantity.

28. The measurement quantity reporting method according to claim 15 or 16, wherein: The first measurement amount is reported aperiodically; or The first measurement quantity is reported periodically.

29. A first communication device comprising a memory, a transceiver, and a processor; memory for storing computer programs; a transceiver, configured to transmit and receive data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: Measuring a sensing reference signal to obtain a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency offset; Report the first measurement amount to the perception server.

30. A perception server comprising a memory, a transceiver, and a processor; memory for storing computer programs; a transceiver, configured to transmit and receive data under the control of the processor; A processor is configured to read the computer program in the memory and perform the following operations: receiving a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency deviation; The perception information of the perception target is determined based on the first measurement amount.

31. A measurement quantity reporting device, comprising: An acquiring unit, configured to measure a sensing reference signal to acquire a first measurement quantity related to a sensing target, where the first measurement quantity includes a speed and / or a Doppler frequency shift; A reporting unit is configured to report the first measurement value to a perception server.

32. A measurement quantity reporting device, comprising: a receiving unit, configured to receive a first measurement quantity related to a perception target reported by a first communication device, where the first measurement quantity includes a speed and / or a Doppler frequency shift; A determining unit is configured to determine the perception information of the perception target based on the first measurement amount.

33. A non-transitory readable storage medium storing a computer program, wherein the computer program is configured to cause a processor to execute the method according to any one of claims 1 to 14.

34. A non-transitory readable storage medium storing a computer program, wherein the computer program is configured to cause a processor to execute the method according to any one of claims 15 to 28.

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