Sensing method, terminal, and network device

Abstract

The present disclosure relates to a sensing method, a terminal, and a network device. The sensing method comprises: a terminal determining a beamforming vector of a sensing reference signal, and on a first resource, sending the sensing reference signal by means of the beamforming vector In the embodiments of the present disclosure, a terminal performs beamforming on a sensing reference signal, and concentrates power in a direction corresponding to a beam, so as to obtain an accurate sensing result of a sensing target in such direction.

Description

Sensing methods, terminals and network devices Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to sensing methods, terminals and network devices. Background Technology

[0002] Wireless communication technology and wireless sensing technology are highly similar. Integrated sensing and communication (ISAC) can combine wireless communication and wireless sensing, introducing close cooperation between the two, thereby improving spectrum efficiency and reducing network deployment costs.

[0003] Summary of the Invention

[0004] This disclosure presents sensing methods, terminals, and network devices.

[0005] According to a first aspect of the embodiments of this disclosure, a sensing method is proposed, executed by a terminal, the method comprising:

[0006] Determine the beamforming vector of the sensing reference signal;

[0007] The sensing reference signal is transmitted over the first resource using the beamforming vector.

[0008] According to a second aspect of the embodiments of this disclosure, a sensing method is provided, performed by a network device, the method comprising:

[0009] Send first information to the terminal, the first information being used to indicate at least one of the N-dimensional angle ranges, the N-dimensional angle ranges being used by the terminal to determine the beamforming vector of the sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

[0010] According to a third aspect of the embodiments of this disclosure, a terminal is provided, comprising:

[0011] The processing module is configured to determine the beamforming vector of the sensing reference signal;

[0012] The transceiver module is configured to transmit the sensing reference signal over the first resource using the beamforming vector.

[0013] According to a fourth aspect of the embodiments of this disclosure, a network device is provided, comprising:

[0014] The transceiver module is configured to send first information to the terminal, the first information being used to indicate at least one of N angular ranges, the N angular ranges being used by the terminal to determine a beamforming vector for a sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

[0015] According to a fifth aspect of the embodiments of this disclosure, a communication system is provided, comprising:

[0016] The terminal is configured to implement the method proposed in the first aspect; and,

[0017] The network device is configured to implement the method proposed in the second aspect.

[0018] According to a sixth aspect of the present disclosure, a communication device is provided, comprising:

[0019] One or more processors;

[0020] The communication device is used to execute the method proposed in the first or second aspect.

[0021] According to a seventh aspect of the present disclosure, a storage medium is provided that stores instructions which, when executed on a communication device, cause the communication device to perform the method as described in the first or second aspect.

[0022] According to an eighth aspect of the present disclosure, a computer program product is provided, comprising a computer program that, when executed by a communication device, implements the method as proposed in the first or second aspect.

[0023] In this embodiment of the present disclosure, the terminal performs beamforming on the sensing reference signal and concentrates the power in the direction corresponding to the beam, thereby obtaining accurate sensing results of the sensing target in that direction. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0025] Figure 1 is an exemplary schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure.

[0026] Figure 2 is an exemplary interactive schematic diagram of a perception method provided according to an embodiment of the present disclosure.

[0027] Figure 3A is an exemplary flowchart of a sensing method provided according to an embodiment of the present disclosure.

[0028] Figure 3B is an exemplary flowchart of a sensing method provided according to an embodiment of the present disclosure.

[0029] Figure 3C is an exemplary flowchart of a sensing method provided according to an embodiment of the present disclosure.

[0030] Figure 4A is an exemplary flowchart of a sensing method provided according to an embodiment of the present disclosure.

[0031] Figure 4B is an exemplary flowchart of a sensing method provided according to an embodiment of the present disclosure.

[0032] Figure 5A is an exemplary schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure.

[0033] Figure 5B is an exemplary schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure.

[0034] Figure 6A is an exemplary schematic diagram of the structure of a communication device provided according to an embodiment of the present disclosure.

[0035] Figure 6B is an exemplary schematic diagram of the structure of a chip provided according to an embodiment of the present disclosure. Detailed Implementation

[0036] This disclosure presents sensing methods, terminals, and network devices.

[0037] In a first aspect, embodiments of this disclosure propose a sensing method, executed by a terminal, the method comprising:

[0038] Determine the beamforming vector of the sensing reference signal;

[0039] The sensing reference signal is transmitted over the first resource using the beamforming vector.

[0040] In the above embodiments, considering the significant attenuation at higher frequencies, the terminal performs beamforming on the sensing reference signal, concentrating the power in the direction corresponding to the beam, thereby obtaining accurate sensing results for the target in that direction. For different directions, the terminal can use different beams for sensing.

[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource is a sounding reference signal (SRS) resource or an SRS resource set.

[0042] In the above embodiments, the terminal sends a sensing reference signal on the SRS resource or SRS resource set. The SRS resource or SRS resource set is scheduled by the network device. Therefore, the sensing reference signal will not interfere with surrounding terminals or base stations of neighboring cells.

[0043] In conjunction with some embodiments of the first aspect, in some embodiments, the use of the SRS resource or the SRS resource set is configured to be perceptive.

[0044] In the above embodiments, by configuring the use of the SRS resource or SRS resource set as sensing, a sensing reference signal can be transmitted on the SRS resource or SRS resource set.

[0045] In conjunction with some embodiments of the first aspect, in some embodiments, the beamforming vector is determined by an angle range of N dimensions, where N is an integer greater than or equal to 1.

[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the N angular ranges include horizontal angular ranges and / or vertical angular ranges.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0048] Receive first information sent by the network device, the first information being used to indicate the angle range of at least one of the N dimensional angle ranges.

[0049] In the above embodiments, the network device can indicate the angle range that the terminal needs to sense (scan). The network device can configure different angle ranges for different terminals, thereby avoiding interference from the sensing reference signal beam sent by the terminal to other terminals in the vicinity and avoiding interference from the sensing reference signal beam sent by other terminals.

[0050] In conjunction with some embodiments of the first aspect, in some embodiments, the angle ranges among the N dimensional angle ranges that are not indicated by the network device are default values.

[0051] In conjunction with some embodiments of the first aspect, in some embodiments, the angle range is the angle range in the global coordinate system; or, the angle range is the angle range in the terminal local coordinate system.

[0052] In the above embodiments, the angle range can be absolute or relative. An absolute angle range is the angle range in the global coordinate system, such as a direction from 30 degrees east of north to 50 degrees east. A relative angle range is the angle range in the terminal's local coordinate system, such as a direction from 30 degrees to 50 degrees to the right of the front.

[0053] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal local coordinate system is determined by at least one of the following:

[0054] The orientation of the terminal;

[0055] The direction of movement of the terminal;

[0056] The orientation of the first antenna panel of the terminal, wherein the first antenna panel is one of the terminal antenna panels.

[0057] In the above embodiments, a local coordinate system of the terminal can be established based on at least one of the terminal's orientation, direction of movement, and orientation of the first antenna panel.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0059] Send a second message to the network device, the second message being used to indicate the transformation relationship between the terminal's local coordinate system and the global coordinate system.

[0060] In the above embodiments, by reporting the transformation relationship between the terminal's local coordinate system and the global coordinate system to the network device, the network device can convert the angle range in the global coordinate system to the angle range in the terminal's local coordinate system according to the transformation relationship, so that the terminal does not need to perform a transformation operation, thus saving terminal power consumption.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes a transformation matrix between the terminal local coordinate system and the global coordinate system; or, the second information includes at least one of three rotation angles, the three rotation angles being the angles along the z-axis, y-axis, and x-axis respectively required for the terminal local coordinate system and the global coordinate system to transform into the other coordinate system.

[0062] In the above embodiments, the second information may include a transformation matrix between the terminal local coordinate system and the global coordinate system, or the second information may include at least one of the three rotation angles required for the transformation between the terminal local coordinate system and the global coordinate system, thereby indicating the transformation relationship between the terminal local coordinate system and the global coordinate system.

[0063] In conjunction with some embodiments of the first aspect, in some embodiments, the rotation angle among the three rotation angles that is not included in the second information is a default value.

[0064] In the above embodiments, if the second information contains fewer than three rotation angles, the rotation angles not included in the second information can be default values.

[0065] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0066] The sensed quantity is obtained by measuring the echo of the sensed reference signal.

[0067] In the above embodiments, as the simplest and most direct single-station sensing mode, the terminal sends a sensing reference signal and measures the echo of the sensing reference signal to obtain the sensing quantity.

[0068] Secondly, embodiments of this disclosure provide a sensing method executed by a network device, the method comprising:

[0069] Send first information to the terminal, the first information being used to indicate at least one of the N-dimensional angle ranges, the N-dimensional angle ranges being used by the terminal to determine the beamforming vector of the sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

[0070] In conjunction with some embodiments of the second aspect, in some embodiments, the first resource is an SRS resource or an SRS resource set.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the use of the SRS resource or the SRS resource set is configured to be perceptive.

[0072] In conjunction with some embodiments of the second aspect, in some embodiments, the N angular ranges include horizontal angular ranges and / or vertical angular ranges.

[0073] In conjunction with some embodiments of the second aspect, in some embodiments, the angle ranges among the N dimensional angle ranges that are not indicated by the first information are default values.

[0074] In conjunction with some embodiments of the second aspect, in some embodiments, the angle range is an angle range in the global coordinate system; or,

[0075] The angle range refers to the angle range in the local coordinate system of the terminal.

[0076] In conjunction with some embodiments of the second aspect, in some embodiments, the terminal local coordinate system is determined by at least one of the following:

[0077] The orientation of the terminal;

[0078] The direction of movement of the terminal;

[0079] The orientation of the first antenna panel of the terminal, wherein the first antenna panel is one of the terminal antenna panels.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0081] The terminal sends a second piece of information, which indicates the transformation relationship between the terminal's local coordinate system and global coordinate system.

[0082] The first information is determined based on the second information.

[0083] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes a transformation matrix between the terminal local coordinate system and the global coordinate system; or, the second information includes at least one of three rotation angles, the three rotation angles being the angles along the z-axis, y-axis, and x-axis respectively required for the terminal local coordinate system and the global coordinate system to transform into the other coordinate system.

[0084] In conjunction with some embodiments of the second aspect, in some embodiments, the rotation angle among the three rotation angles that is not included in the second information is a default value.

[0085] Thirdly, embodiments of this disclosure provide a terminal, including:

[0086] The processing module is configured to determine the beamforming vector of the sensing reference signal;

[0087] The transceiver module is configured to transmit the sensing reference signal over the first resource using the beamforming vector.

[0088] Fourthly, embodiments of this disclosure provide a network device, including:

[0089] The transceiver module is configured to send first information to the terminal, the first information being used to indicate at least one of N angular ranges, the N angular ranges being used by the terminal to determine a beamforming vector for a sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

[0090] Fifthly, embodiments of this disclosure provide a communication system, including:

[0091] The terminal is configured to implement the method described in the optional implementation of the first aspect; and,

[0092] The network device is configured to implement the method described in the optional implementation of the second aspect.

[0093] Sixthly, embodiments of this disclosure provide a communication device, comprising:

[0094] One or more processors;

[0095] The communication device is used to execute the method described in the optional implementation of the first or second aspect.

[0096] In a seventh aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method as described in an optional implementation of the first or second aspect.

[0097] Eighthly, embodiments of this disclosure provide a computer program product including a computer program that, when executed by a communication device, implements the method as described in the optional implementation of the first or second aspect.

[0098] In a ninth aspect, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described in an optional implementation of the first or second aspect.

[0099] It is understood that the aforementioned terminals, network devices, communication systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0100] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0101] In each of the disclosed embodiments, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of the embodiments are consistent and can be referenced by each other. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0102] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0103] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the," "the," "the," "the," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0104] In the embodiments disclosed herein, "multiple" refers to two or more.

[0105] In some embodiments, the terms “at least one (at least one item, at least one)”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.

[0106] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.

[0107] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.

[0108] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0109] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0110] In some embodiments, the terms “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “if…”, “if…”, etc., can be used interchangeably.

[0111] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0112] In some embodiments, the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "body", etc.

[0113] In some embodiments, "network" can be interpreted as devices included in the network, such as access network devices, core network devices, etc.

[0114] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)," "base station (BS)," "radio base station," or "fixed station." In some embodiments, it may also be understood as "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission and / or reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," or "bandwidth part (BWP)."

[0115] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)," "user terminal," "mobile station (MS)," "mobile terminal (MT)," "subscriber station," "mobile unit," "subscriber unit," "wireless unit," "remote unit," "mobile device," "wireless device," "wireless communication device," "remote device," "mobile subscriber station," "access terminal," "mobile terminal," "wireless terminal," "remote terminal," "handset," "user agent," "mobile client," "client," etc.

[0116] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0117] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0118] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0119] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 includes a terminal 101 and a network device 102. In this embodiment, the communication system 100 may also be referred to as a sensing system or a communication sensing system. In some embodiments, a device (such as a terminal or a network device) may include a sensing transmitter and a sensing receiver, or one of a sensing transmitter and a sensing receiver.

[0120] In some embodiments, terminal 101 includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, smart door lock, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0121] In some embodiments, network device 102 may include at least one of access network device and core network device.

[0122] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include, but is not limited to, at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system.

[0123] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).

[0124] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0125] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0126] It is understood that the system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0127] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0128] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New radio access (NX), Future generation radio access (FX), Global System for Mobile communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), and IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them, etc. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0129] Wireless communication technology and wireless sensing technology are highly similar. Integrated sensing and communication (ISAC) can combine wireless communication and wireless sensing, introducing close cooperation between the two, thereby improving spectrum efficiency and reducing network deployment costs.

[0130] In wireless sensing, it is typically necessary to estimate the distance, azimuth (such as horizontal and vertical angles), and velocity of the target. Sensing in a broader sense also includes wireless tracking and radio frequency identification (RFID) of the target. For sensing purposes, the sensing transmitter usually sends a dedicated reference signal. For ease of description, this is referred to here as the sensing reference signal. The sensing reference signal can also be called the sensing signal.

[0131] Generally, wireless sensing primarily employs two sensing modes: monostatic and bistatic. In monostatic sensing, the sensing transmitter and receiver are co-located. The transceiver sends a sensing reference signal and measures the echo of this signal to estimate at least one of the target's range, angle, and velocity. In bistatic sensing, the sensing transmitter and receiver are not co-located. The transmitter sends a sensing reference signal, and the receiver measures this signal to estimate at least one of the target's range, angle, and velocity.

[0132] Depending on the different types of sensing transmitters and sensing receivers, wireless sensing includes many scenarios, such as: UE single-site sensing, gNB single-site sensing, UE transmitting and gNB receiving dual-site sensing, and gNB transmitting and UE receiving dual-site sensing, etc.

[0133] Optionally, the perception between gNBs can include the following perception scenarios:

[0134] Scenario 1: gNB self-transmits and receives; in this scenario, the gNB transmits a sensing reference signal, which is reflected by the sensing target, and then the gNB receives the reflected sensing reference signal.

[0135] Scenario 2: gNB A transmits and gNB B receives; gNB A transmits a sensing reference signal, which is reflected by the sensing target, and then gNB B receives the reflected sensing reference signal.

[0136] Optionally, the perception between UEs may include the following perception scenarios:

[0137] Scenario 3: UE self-transmitting and self-receiving; in this scenario, the UE transmits a sensing reference signal, which is reflected by the sensing target, and then the UE receives the reflected sensing reference signal.

[0138] Scenario 4: UE A transmits and UE B receives; where UE A transmits a sensing reference signal, the sensing reference signal is reflected through the sensing target, and then UE B receives the reflected sensing reference signal.

[0139] Optionally, the perception between the gNB and the UE may include the following perception scenarios:

[0140] Scenario 5: UE transmits and gNB receives; wherein, the UE transmits a sensing reference signal, the sensing reference signal is reflected through the sensing target, and then the gNB receives the reflected sensing reference signal.

[0141] Scenario 6: gNB transmits and UE receives; wherein, the gNB transmits a sensing reference signal, the sensing reference signal is reflected through the sensing target, and then the UE receives the reflected sensing reference signal.

[0142] Taking the UE single-site sensing mode as an example, the UE sends a sensing reference signal and measures the echo of the sensing reference signal to obtain at least one of the sensing quantities such as distance, angle, and speed of the sensing target.

[0143] On the one hand, wireless sensing operates at a wide range of frequencies, each corresponding to different sensing services. Especially for sensing systems operating at higher frequencies (such as frequency range 2 (FR2), FR3, etc.), due to greater attenuation, the sensing transmitter can use a multi-antenna array to beamform the sensing reference signal, concentrating power in the direction corresponding to the beam, thereby obtaining accurate sensing results for the target in that direction. For different directions, the sensing transmitter will use different beams for sensing, i.e., beam scanning. On the other hand, as the simplest and most direct UE-based single-site sensing method, the UE transmits the sensing reference signal on freely selected radio resources and measures the echo. Obviously, this method will interfere with surrounding gNBs and / or UEs, not only reducing the communication performance of surrounding gNBs and / or UEs but also reducing the single-site sensing performance of the sensing UE.

[0144] The gNB described above can be replaced with any network device.

[0145] Figure 2 is an interactive schematic diagram of a sensing method according to an embodiment of the present disclosure. As shown in Figure 2, the embodiments of the present disclosure relate to a sensing method, which includes:

[0146] Step S2101: The terminal sends the second information to the network device.

[0147] In some embodiments, the second information is used to indicate the transformation relationship between the terminal's local coordinate system and the global coordinate system. The terminal's local coordinate system is a coordinate system established with the terminal as a reference.

[0148] In some embodiments, the terminal local coordinate system may be determined by at least one of the following:

[0149] The orientation of the terminal;

[0150] The direction of movement of the terminal;

[0151] The orientation of the terminal's first antenna panel, which is one of the terminal's antenna panels.

[0152] Optionally, for a terminal with multiple antenna panels, the first antenna panel can be the first antenna panel among the terminal's antenna panels, but it is not limited to this; it can also be the second, third, or last antenna panel, etc. The orientation of the first antenna panel is related to its installation position. For example, assuming the terminal is a vehicle, and the first antenna panel is installed at the front, rear, left, or right side of the vehicle, then the orientation of the first antenna panel is pointing towards the front, rear, left, or right side of the vehicle.

[0153] Optionally, the terminal's local coordinate system can be determined by one of the terminal's orientation, the terminal's direction of movement, and the orientation of the first antenna panel. In some embodiments, the terminal's local coordinate system can be determined based on one of the terminal's orientation, the terminal's direction of movement, the orientation of the first antenna panel, and the plane on which the terminal's antenna panel is located. For example, if the terminal is a vehicle, and the first antenna panel is mounted at the front of the vehicle, with the first antenna panel pointing directly forward, the terminal's local coordinate system can be: the plane on which the first antenna panel is located is the yoz plane (y-axis parallel to the ground, z-axis perpendicular to the ground), and the x-axis points directly forward. For example, if the terminal is a mobile phone, the terminal's local coordinate system can be: the plane on which the mobile phone screen is located is the yoz plane, and the x-axis is perpendicular to the direction of the mobile phone screen.

[0154] The embodiments disclosed herein do not specifically limit the local coordinate system of the terminal. The local coordinate system of the terminal satisfies that the xyz coordinate axes are mutually perpendicular and that the xyz coordinate axes conform to a right-handed coordinate system.

[0155] In some embodiments, the orientation of the terminal, the direction of movement of the terminal, and the orientation of the first antenna panel may all point in the same direction. For example, assuming the terminal is a vehicle and the vehicle is moving forward, and the first antenna panel is mounted at the front of the vehicle, then the orientation of the terminal, the direction of movement of the terminal, and the orientation of the first antenna panel all point directly in front of the vehicle. In some embodiments, the orientation of the terminal, the direction of movement of the terminal, and the orientation of the first antenna panel may be partially the same or different. For example, assuming the terminal is a vehicle and the vehicle is reversing, then the direction of movement of the terminal points backward; for example, if the first antenna panel is mounted on the left or right side of the vehicle, then the orientation of the first antenna panel points to the left or right side of the vehicle.

[0156] The second information is used to indicate the transformation relationship between the terminal's local coordinate system and the global coordinate system; that is, the second information is used for the transformation between the terminal's local coordinate system and the global coordinate system. Optionally, the transformation between the terminal's local coordinate system and the global coordinate system can refer to the transformation from the global coordinate system to the terminal's local coordinate system.

[0157] In some embodiments, the transformation relationship can be represented as a transformation matrix between the terminal local coordinate system and the global coordinate system. Optionally, the second information includes the transformation matrix. Optionally, the transformation matrix between the terminal local coordinate system and the global coordinate system can refer to a first transformation matrix from the global coordinate system to the terminal local coordinate system, or it can refer to a second transformation matrix from the terminal local coordinate system to the terminal local coordinate system. Optionally, the second information includes either the first transformation matrix or the second transformation matrix.

[0158] In some embodiments, the transformation relationship can be represented by three rotation angles, which are the angles along the z-axis, y-axis, and x-axis respectively required to transform one coordinate system (local or global) into the other. Optionally, transforming one coordinate system (local or global) into the other can refer to either the local coordinate system transforming into the global coordinate system or vice versa. Optionally, the second information includes at least one of the three rotation angles. If the second information contains fewer than three rotation angles, the rotation angles not included in the second information can be default values. Default values ​​can be configured by the network device (e.g., static or semi-static configuration), defined by the protocol, determined by the terminal implementation, or determined by the network device implementation.

[0159] According to the above embodiments, the second information may include a transformation matrix between the terminal local coordinate system and the global coordinate system, or the second information may include at least one of the three rotation angles required for the transformation between the terminal local coordinate system and the global coordinate system, thereby indicating the transformation relationship between the terminal local coordinate system and the global coordinate system.

[0160] In some embodiments, the terminal may send the second information to the network device periodically or aperiodically.

[0161] In some embodiments, the network device receives second information sent by the terminal. Optionally, the network device determines the first information based on the second information. Optionally, the network device does not determine the first information based on the second information.

[0162] According to the above embodiments, by reporting the transformation relationship between the terminal's local coordinate system and the global coordinate system to the network device, the network device can convert the angle range in the global coordinate system to the angle range in the terminal's local coordinate system based on the transformation relationship, so that the terminal does not need to perform a transformation operation, thus saving terminal power consumption.

[0163] In some embodiments, step S2101 is an optional step. For example, if the terminal does not send the second information, the network device may not determine the first information based on the second information. For example, the transformation matrix between the terminal's local coordinate system and the global coordinate system, or at least one of the three rotation angles required for the transformation between the terminal's local coordinate system and the global coordinate system, is a default value.

[0164] Step S2102: The network device sends the first information to the terminal.

[0165] In some embodiments, the first information is used to indicate the angle range of at least one of the N angular ranges. N is an integer greater than or equal to 1. Optionally, the N angular ranges include horizontal angular ranges and / or vertical angular ranges. For example, if N = 1, and the N angular ranges are horizontal angular ranges, then the first information indicates the horizontal angular range; or, if the N angular ranges are vertical angular ranges, then the first information indicates the vertical angular range. For example, if N = 2, and the N angular ranges include both horizontal and vertical angular ranges, then the first information indicates the horizontal angular range, or the first information indicates the vertical angular range, or the first information indicates both horizontal and vertical angular ranges. Optionally, an angular range in one dimension can be a continuous angular range or can consist of multiple discontinuous angular ranges. Optionally, an angular range in one dimension can be understood as the perception range of the terminal in that dimension; for example, the horizontal angular range can be understood as the perception range of the terminal in the horizontal direction.

[0166] The aforementioned angle range can be absolute or relative. Optionally, the absolute angle range is the angle range in the global coordinate system, such as 30 to 50 degrees east of north. Optionally, the relative angle range is the angle range in the terminal's local coordinate system, such as 30 to 50 degrees to the right of the terminal's front.

[0167] Optionally, the angle range of a dimension can be the angle range of that dimension in the global coordinate system or the angle range of that dimension in the terminal local coordinate system. The angle range of the horizontal dimension can be the angle range of the horizontal dimension in the global coordinate system or the angle range of the horizontal dimension in the terminal local coordinate system. The angle range of the vertical dimension can be the angle range of the vertical dimension in the global coordinate system or the angle range of the vertical dimension in the terminal local coordinate system.

[0168] In some embodiments, the first information indicating the angle range of at least one dimension may refer to the first information indicating the angle range of at least one dimension in the terminal's local coordinate system. Optionally, the network device determines the first information based on the second information. In one example, the network device determines the angle range of at least one dimension in the global coordinate system, converts the angle range in the global coordinate system to the angle range in the terminal's local coordinate system according to the transformation relationship between the terminal's local coordinate system and the global coordinate system indicated by the second information, thereby obtaining the angle range of at least one dimension in the terminal's local coordinate system, and then indicates it to the terminal through the first information.

[0169] In some embodiments, the first information indicating the angle range of at least one dimension may refer to the first information indicating the angle range of at least one dimension in the global coordinate system. Optionally, the network device does not determine the first information based on the second information. In one example, the network device determines the angle range of at least one dimension in the global coordinate system and then indicates it to the terminal via the first information. After receiving the first information, the terminal converts the angle range in the global coordinate system to the angle range in the terminal's local coordinate system according to the transformation relationship between the terminal's local coordinate system and the global coordinate system, thus obtaining the angle range of at least one dimension in the terminal's local coordinate system.

[0170] According to the above embodiments, the network device can indicate the angle range that the terminal needs to sense (scan). The network device can configure different angle ranges for different terminals, thereby avoiding interference from the sensing reference signal beam sent by the terminal to other terminals in the vicinity and avoiding interference from the sensing reference signal beam sent by other terminals.

[0171] In some embodiments, step S2102 is an optional step. For example, the network device does not send the first information, and the angle range of N dimensions can be a default value.

[0172] Step S2103: The terminal determines the beamforming vector of the sensing reference signal.

[0173] Among them, the beamforming vector is used to beamform the sensing reference signal.

[0174] In some embodiments, the beamforming vector is determined by an angle range of N dimensions. Optionally, some or all of the angle ranges in the N dimensions are indicated by the network device through first information. Optionally, if the network device does not indicate the angle range of a certain dimension in the first information, the terminal can use a default value for that dimension's angle range. The default value can be configured by the network device (e.g., static or semi-static configuration), defined by the protocol, or determined by the terminal implementation. Optionally, all N angle ranges can be default values. The default value can be an angle range in the global coordinate system or an angle range in the terminal's local coordinate system.

[0175] In some embodiments, the terminal determines the beamforming vector of the sensing reference signal based on the angular range of N dimensions in the terminal's local coordinate system. Optionally, the terminal determines the angles to be scanned within the angular range of N dimensions in the terminal's local coordinate system, thereby determining the beamforming vector. Different beamforming vectors correspond to different beam directions. The terminal transmitting the sensing reference signal with different beamforming vectors means that the terminal transmits sensing reference signal beams in different directions.

[0176] In some embodiments, the terminal determines the beamforming vector based on the first information. In some embodiments, the terminal does not determine the beamforming vector based on the first information.

[0177] For ease of description, the following text uses the angle range of the horizontal and vertical dimensions as examples to illustrate this scheme.

[0178] In some embodiments, step S2101 is omitted. The network device determines the angle range of the horizontal dimension in the global coordinate system and the angle range of the vertical dimension in the global coordinate system, and then instructs the terminal through first information. The terminal receives the first information, and then converts the angle range in the global coordinate system to the angle range in the terminal local coordinate system according to the transformation relationship between the terminal local coordinate system and the global coordinate system, thereby obtaining the angle range of the horizontal dimension in the terminal local coordinate system and the angle range of the vertical dimension in the terminal local coordinate system. Then, based on the angles that need to be scanned within the angle range of the horizontal dimension in the terminal local coordinate system and the angles that need to be scanned within the angle range of the vertical dimension in the terminal local coordinate system, the beamforming vector is determined.

[0179] In some embodiments, steps S2101 to S2102 are omitted. The terminal obtains the default values ​​for the angle range of the horizontal dimension in the terminal local coordinate system and the default values ​​for the angle range of the vertical dimension in the terminal local coordinate system; or, the terminal obtains the default values ​​for the angle range of the horizontal dimension in the global coordinate system and the default values ​​for the angle range of the vertical dimension in the global coordinate system, and then converts the angle range in the global coordinate system to the angle range in the terminal local coordinate system according to the transformation relationship between the terminal local coordinate system and the global coordinate system; then, based on the angles that need to be scanned within the angle range of the horizontal dimension in the terminal local coordinate system and the angles that need to be scanned within the angle range of the vertical dimension in the terminal local coordinate system, the beamforming vector is determined.

[0180] In some embodiments, steps S2101 to S2102 are not omitted. The terminal sends second information to the network device, the second information indicating the transformation relationship between the terminal's local coordinate system and the global coordinate system. The network device receives the second information. The network device determines the angle range of the horizontal dimension in the global coordinate system and the angle range of the vertical dimension in the global coordinate system. According to the transformation relationship between the terminal's local coordinate system and the global coordinate system, the network device converts the angle range in the global coordinate system to the angle range in the terminal's local coordinate system, obtaining the angle range of the horizontal dimension in the terminal's local coordinate system and the angle range of the vertical dimension in the terminal's local coordinate system. Then, it indicates this to the terminal through the first information. The terminal receives the first information and then determines the beamforming vector according to the angles that need to be scanned within the angle range of the horizontal dimension in the terminal's local coordinate system and the angles that need to be scanned within the angle range of the vertical dimension in the terminal's local coordinate system.

[0181] Step S2104: The terminal transmits a sensing reference signal on the first resource using the beamforming vector.

[0182] In some embodiments, the terminal beamforms the sensing reference signal according to the beamforming vector and transmits the sensing reference signal beam on a first resource.

[0183] In some embodiments, the first resource may be a sensing reference signal (SRS) resource or an SRS resource set, but is not limited thereto. For example, it may also be a wireless resource freely selected by the terminal, or a wireless resource configured by the network device for the terminal.

[0184] According to the above embodiments, the terminal sends a sensing reference signal on the SRS resource or SRS resource set. The SRS resource or SRS resource set is scheduled by the network device. Therefore, the sensing reference signal will not interfere with surrounding terminals or base stations of neighboring cells.

[0185] In some embodiments, the SRS resource or SRS resource set is configured for sensing, for example, by configuring "usage=sensing" for the SRS resource or SRS resource set. Since the SRS resource or SRS resource set is used for sensing, it can be used to transmit sensing reference signals.

[0186] In some embodiments, after transmitting the sensing reference signal, the method further includes: measuring the echo of the sensing reference signal to obtain a sensing quantity. Optionally, the sensing quantity includes at least one of the following:

[0187] Perceive the distance to the target;

[0188] The angle at which the target is perceived (such as horizontal and vertical angles);

[0189] Perceive the speed of the target.

[0190] According to the above embodiments, as the simplest and most direct single-station sensing mode, the terminal sends a sensing reference signal and measures the echo of the sensing reference signal to obtain the sensing quantity.

[0191] Not limited to single-site sensing mode, in other sensing modes or sensing scenarios, the terminal sends a sensing reference signal, and network devices or other terminals measure the sensing reference signal to obtain the sensing quantity.

[0192] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0193] In some embodiments, the terms "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0194] In some embodiments, the terms “resource”, “resource set”, “resource group”, “beam”, “beam width”, and “beam angular degree” can be used interchangeably.

[0195] In some embodiments, “get,” “obtain,” “receive,” “transmit,” “bidirectional transmission,” and “send and / or receive” can be used interchangeably and can be interpreted as receiving from other entities, obtaining from protocols, obtaining from higher layers, obtaining through self-processing, or autonomous implementation, among other meanings.

[0196] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0197] The sensing method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2101 may be implemented as an independent embodiment, step S2102 may be implemented as an independent embodiment, step S2103 may be implemented as an independent embodiment, step S2103+S2104 may be implemented as an independent embodiment, step S2102+S2103+S2104 may be implemented as an independent embodiment, and step S2101+S2102+S2103+S2104 may be implemented as an independent embodiment, but is not limited thereto.

[0198] In some embodiments, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0199] In some embodiments, other optional implementations described before or after the specification corresponding to FIG2 may be referred to.

[0200] Figure 3A is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 3A, the embodiment of the present disclosure relates to a sensing method executed by a terminal, the method including:

[0201] Step S3101: Send the second message.

[0202] The optional implementation of step S3101 can be found in the optional implementation of step S2101 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0203] Optionally, the terminal may send second information to the network device, but is not limited to this; it may also send second information to other entities.

[0204] In some embodiments, step S3101 is an optional step.

[0205] Step S3102: Receive the first information.

[0206] The optional implementation of step S3102 can be found in the optional implementation of step S2102 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0207] Optionally, the terminal may receive the first information sent by the network device, but is not limited to this; it may also receive the first information sent by other entities.

[0208] Optionally, the first information is determined based on the second information. Optionally, step S3101 is omitted, and the first information is not determined based on the second information.

[0209] In some embodiments, step S3102 is an optional step.

[0210] Step S3103: Determine the beamforming vector of the sensing reference signal.

[0211] The optional implementation of step S3103 can be found in the optional implementation of step S2103 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0212] Optionally, the beamforming vector is determined based on the first information. Optionally, steps S3101 to S3102 are omitted, and the beamforming vector is not determined based on the first information.

[0213] Step S3104: Transmit a sensing reference signal on the first resource using the beamforming vector.

[0214] The optional implementation of step S3104 can be found in the optional implementation of step S2104 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0215] The sensing method involved in the embodiments of this disclosure may include at least one of steps S3101 to S3104. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3103 may be implemented as an independent embodiment, step S3103+S3104 may be implemented as an independent embodiment, step S3102+S3103+S3104 may be implemented as an independent embodiment, and step S3101+S3102+S3103+S3104 may be implemented as an independent embodiment, but is not limited thereto.

[0216] In some embodiments, steps S3101 and S3102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0217] Figure 3B is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 3B, the embodiment of the present disclosure relates to a sensing method executed by a terminal, the method including:

[0218] Step S3201: Receive the first information.

[0219] The optional implementation of step S3201 can be found in the optional implementation of step S2102 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0220] Optionally, the terminal may receive the first information sent by the network device, but is not limited to this; it may also receive the first information sent by other entities.

[0221] Optionally, the first information may be determined based on the second information, or it may not be determined based on the second information.

[0222] In some embodiments, step S3201 is an optional step.

[0223] Step S3202: Determine the beamforming vector of the sensing reference signal.

[0224] The optional implementation of step S3202 can be found in the optional implementation of step S2103 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0225] Optionally, the beamforming vector is determined based on the first information. Optionally, step S3201 is omitted, and the beamforming vector is not determined based on the first information.

[0226] Step S3203: Transmit a sensing reference signal on the first resource using the beamforming vector.

[0227] The optional implementation of step S3203 can be found in the optional implementation of step S2104 in Figure 2 and other related parts in the embodiments involved in Figure 2, which will not be repeated here.

[0228] The sensing method involved in the embodiments of this disclosure may include at least one of steps S3201 to S3203. For example, step S3201 may be implemented as a standalone embodiment, step S3202 may be implemented as a standalone embodiment, step S3202+S3203 may be implemented as a standalone embodiment, and step S3201+S3202+S3203 may be implemented as a standalone embodiment, but is not limited thereto.

[0229] In some embodiments, step S3201 is optional and may be omitted or replaced in different embodiments.

[0230] Figure 3C is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 3C, the embodiments of the present disclosure relate to a sensing method executed by a terminal, the method including:

[0231] Step S3301: Determine the beamforming vector of the sensing reference signal.

[0232] The optional implementation of step S3301 can be found in the optional implementation of step S2103 in Figure 2, step S3103 in Figure 3A, step S3202 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0233] In some embodiments, the beamforming vector is determined by an angle range of N dimensions, where N is an integer greater than or equal to 1. Optionally, the angle range of N dimensions includes an angle range in the horizontal dimension and / or an angle range in the vertical dimension.

[0234] In some embodiments, the angle range of at least one of the N angle ranges is indicated by first information. Optionally, the method further includes: receiving first information, the first information being used to indicate the angle range of at least one of the N angle ranges. Optionally, the terminal receives the first information sent by a network device, but is not limited thereto, and may also receive first information sent by other entities.

[0235] In some embodiments, the angle ranges in the N-dimensional angle ranges that are not indicated by the network device are default values.

[0236] In some embodiments, the angle range of some or all of the N-dimensional angle ranges is the default value.

[0237] In some embodiments, the angle range is the angle range in the global coordinate system; or, the angle range is the angle range in the terminal local coordinate system.

[0238] In some embodiments, the terminal local coordinate system is determined by at least one of the following:

[0239] The orientation of the terminal;

[0240] The direction of movement of the terminal;

[0241] The orientation of the terminal's first antenna panel, which is one of the terminal's antenna panels.

[0242] In some embodiments, the first information is determined based on the second information. Optionally, the method further includes: sending the second information, which indicates the transformation relationship between the terminal's local coordinate system and the global coordinate system. Optionally, the terminal sends the second information to a network device, but is not limited thereto; it may also send the second information to other entities.

[0243] In some embodiments, the second information includes a transformation matrix between the terminal local coordinate system and the global coordinate system.

[0244] In some embodiments, the second information includes at least one of three rotation angles, which are the angles along the z-axis, y-axis, and x-axis respectively required to transform one of the terminal local coordinate system and the global coordinate system into the other.

[0245] In some embodiments, the rotation angle that is not included in the second information is the default value among the three rotation angles.

[0246] Step S3302: Transmit a sensing reference signal on the first resource using the beamforming vector.

[0247] The optional implementations of step S3302 can be found in the optional implementations of step S2104 in Figure 2, step S3104 in Figure 3A, step S3203 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0248] In some embodiments, the first resource is an SRS resource or an SRS resource set.

[0249] In some embodiments, the use of the SRS resource or the SRS resource set is configured to be aware.

[0250] In some embodiments, the method further includes: measuring the echo of the sensing reference signal to obtain a sensing quantity.

[0251] In some embodiments, the sensed quantity includes at least one of the following:

[0252] distance;

[0253] angle;

[0254] speed.

[0255] Figure 4A is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 4A, the embodiments of the present disclosure relate to a sensing method executed by a network device, the method including:

[0256] Step S4101: Receive the second information.

[0257] The optional implementation of step S4101 can be found in the optional implementation of step S2101 in Figure 2, step S3101 in Figure 3A, and other related parts in the embodiments involved in Figures 2 and 3A, which will not be repeated here.

[0258] In some embodiments, the network device receives second information sent by the terminal, but is not limited thereto; it may also receive second information sent by other entities.

[0259] The second piece of information is used to indicate the transformation relationship between the terminal's local coordinate system and the global coordinate system.

[0260] In some embodiments, the second information includes a transformation matrix between the terminal local coordinate system and the global coordinate system.

[0261] In some embodiments, the second information includes at least one of three rotation angles, which are the angles along the z-axis, y-axis, and x-axis respectively required to transform one of the terminal local coordinate system and the global coordinate system into the other.

[0262] In some embodiments, the rotation angle that is not included in the second information is the default value among the three rotation angles.

[0263] In some embodiments, the above transformation matrix, or some or all of the above three rotation angles, are default values.

[0264] In some embodiments, the second information is used to determine the first information. The network device determines the first information based on the second information.

[0265] In some embodiments, step S4101 is an optional step.

[0266] Step S4102: Send the first message.

[0267] The optional implementations of step S4102 can be found in the optional implementations of step S2102 in Figure 2, step S3102 in Figure 3A, step S3201 in Figure 3B, and other related parts in the embodiments involved in Figures 2, 3A, and 3B, which will not be repeated here.

[0268] In some embodiments, the network device sends first information to the terminal, but is not limited thereto; it may also send first information to other entities.

[0269] In some embodiments, the first information is used to indicate at least one of the N-dimensional angle ranges, the N-dimensional angle ranges being used by the terminal to determine a beamforming vector for a sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1. Optionally, the N-dimensional angle ranges include horizontal and / or vertical angle ranges.

[0270] In some embodiments, the first resource is an SRS resource or an SRS resource set.

[0271] In some embodiments, the use of the SRS resource or the SRS resource set is configured to be aware.

[0272] In some embodiments, the angle ranges in the N-dimensional angle ranges that are not indicated by the first information are default values. In some embodiments, the angle ranges of some or all of the N-dimensional angle ranges are default values.

[0273] In some embodiments, the angle range is the angle range in the global coordinate system; or, the angle range is the angle range in the terminal local coordinate system.

[0274] In some embodiments, the terminal local coordinate system is determined by at least one of the following:

[0275] The orientation of the terminal;

[0276] The direction of movement of the terminal;

[0277] The orientation of the terminal's first antenna panel, which is one of the terminal's antenna panels.

[0278] In some embodiments, the first information is determined based on the second information. In some embodiments, the first information is not determined based on the second information.

[0279] In some embodiments, step S4102 is an optional step.

[0280] The sensing method involved in the embodiments of this disclosure may include at least one of steps S4101 to S4102. For example, step S4102 may be implemented as a separate embodiment, and steps S4101+S4102 may be implemented as separate embodiments, but are not limited thereto.

[0281] In some embodiments, steps S4101 to S4102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0282] Figure 4B is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 4B, the embodiments of the present disclosure relate to a sensing method executed by a network device, the method including:

[0283] Step S4201: Send the first message.

[0284] The optional implementation of step S4201 can be found in the optional implementation of step S2102 in Figure 2, step S3102 in Figure 3A, step S3201 in Figure 3B, step S4102 in Figure 4A, and other related parts in the embodiments involved in Figures 2, 3A, 3B, and 4A, which will not be repeated here.

[0285] In some embodiments, step S4201 is an optional step.

[0286] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0287] According to embodiments of this disclosure, a beam-based wireless sensing method is proposed.

[0288] According to an embodiment of this disclosure, the UE performs beamforming on the sensing reference signal and transmits the sensing reference signal beam on a first resource.

[0289] Optionally, the first resource can be a sensing reference signal (SRS) resource or an SRS resource set. Optionally, the use of the SRS resource or SRS resource set is configured for sensing, for example, usage = sensing.

[0290] Optionally, the beamforming vector is determined by at least one angular range.

[0291] Optionally, the above-mentioned at least one angle range includes a horizontal dimension angle range and / or a vertical dimension angle range.

[0292] Optionally, the angle range is indicated by the network.

[0293] Optionally, the indication signaling is at least one of downlink control information (DCI), medium access control element (MAC CE), and radio resource control (RRC) signaling.

[0294] Optionally, if no network configuration is available for a certain dimension, the UE will use the default value. The default value can be configured statically or semi-statically by the network, defined by the protocol, or determined by the UE implementation.

[0295] Optionally, the angle range can be either absolute or relative. An absolute angle range is the angle range in the global coordinate system, such as 30 to 50 degrees east of north. A relative angle range is the angle range in the UE's local coordinate system, such as 30 to 50 degrees to the right of forward.

[0296] The UE local coordinate system is determined by at least one of the following: the UE's orientation (for example, if a car is used as the UE, the orientation is directly in front of the car), the UE's direction of motion, and the orientation of the UE's first antenna panel.

[0297] Optionally, the UE reports the relationship between its local coordinate system and global coordinate system to the network. This relationship is used for mutual conversion between the UE's local coordinate system and global coordinate system.

[0298] Optionally, this relationship can be represented as an orthogonal matrix R. The coordinates of a point in space in the local coordinate system are denoted as (x... l ,y l ,z l ), whose coordinates in the global coordinate system are (x g ,y g ,z g Then the relationship between the two is (x) l ,y l ,z l )=(x g ,y g ,z g )R, or (x g ,y g ,z g )=(x l ,y l ,z l )R.

[0299] Optionally, this relationship can be represented by three angles. These three angles represent the rotations required to change from one coordinate system to another (e.g., from the UE's local coordinate system to the global coordinate system, or from the global coordinate system to the UE's local coordinate system), along the z-axis, y-axis, and x-axis respectively. Optionally, if the UE reports fewer than three angles, the unreported angles will use default values. These default values ​​can be configured statically or semi-statically by the network, defined by the protocol, determined by the UE implementation, or determined by the gNB implementation.

[0300] This disclosure proposes a beam-based wireless sensing method that can achieve single-site sensing on the UE side while taking into account interference with surrounding gNBs and UEs.

[0301] This disclosure also provides an apparatus for implementing any of the above methods. For example, an apparatus is provided that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Alternatively, another apparatus is provided that includes units or modules for implementing the steps performed by a network device (e.g., an access network device, a core network functional node, a core network device, etc.) in any of the above methods.

[0302] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through a configuration file, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0303] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as ASICs, such as Neural Network Processing Units (NPUs), Tensor Processing Units (TPUs), and Deep Learning Processing Units (DPUs).

[0304] Figure 5A is a schematic diagram of the structure of a terminal according to an embodiment of this disclosure. As shown in Figure 5A, the terminal 5100 may include at least one of a transceiver module 5101, a processing module 5102, etc. In some embodiments, the processing module 5102 is used to determine the beamforming vector of a sensing reference signal. The transceiver module 5101 is used to transmit the sensing reference signal on a first resource with the beamforming vector. Optionally, the transceiver module 5101 is used to perform at least one of the communication steps (e.g., steps S2101, S2104, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here. Optionally, the processing module is used to perform at least one of the other steps (e.g., step S2103, but not limited thereto) performed by the terminal in any of the above methods, which will not be described in detail here.

[0305] Figure 5B is a schematic diagram of the network device proposed in an embodiment of this disclosure. As shown in Figure 5B, the network device 5200 may include at least one of a transceiver module 5201, a processing module 5202, etc. In some embodiments, the transceiver module 5201 is used to send first information to a terminal, the first information being used to indicate at least one angle range in N dimensions, the N angle ranges being used by the terminal to determine a beamforming vector for a sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1. Optionally, the transceiver module 5201 is used to perform at least one of the communication steps (e.g., step S2102, but not limited thereto) performed by the network device in any of the above methods, which will not be described in detail here. Optionally, the processing module 5202 is used to perform at least one of the other steps performed by the network device in any of the above methods, which will not be described in detail here.

[0306] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0307] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module. Optionally, the processing module may be interchangeable with a processor.

[0308] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0309] As shown in Figure 6A, the communication device 6100 includes one or more processors 6101. The processor 6101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU). The baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. The communication device 6100 is used to execute any of the above methods.

[0310] In some embodiments, the communication device 6100 further includes one or more memories 6102 for storing instructions. Optionally, all or part of the memories 6102 may also be located outside the communication device 6100.

[0311] In some embodiments, the communication device 6100 further includes one or more transceivers 6103. When the communication device 6100 includes one or more transceivers 6103, the transceivers 6103 perform at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, and S2104, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., step S2103, but not limited thereto).

[0312] In some embodiments, a transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc., may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.

[0313] In some embodiments, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102, and the interface circuit 6104 can be used to receive signals from the memory 6102 or other devices, and can be used to send signals to the memory 6102 or other devices. For example, the interface circuit 6104 can read instructions stored in the memory 6102 and send the instructions to the processor 6101.

[0314] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0315] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0316] Chip 6200 includes one or more processors 6201, which are used to perform any of the above methods.

[0317] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, the interface circuit 6202 is connected to memory 6203, and the interface circuit 6202 can be used to receive signals from memory 6203 or other devices, and the interface circuit 6202 can be used to send signals to memory 6203 or other devices. For example, the interface circuit 6202 can read instructions stored in memory 6203 and send the instructions to processor 6201.

[0318] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, and S2104, but not limited thereto), and the processor 6201 performs at least one of the other steps (e.g., step S2103, but not limited thereto).

[0319] In some embodiments, the terms interface circuit, interface, transceiver pin, transceiver, etc., can be used interchangeably.

[0320] In some embodiments, chip 6200 further includes one or more memories 6203 for storing instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200.

[0321] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 6100, cause the communication device 6100 to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0322] This disclosure also provides a program product that, when executed by the communication device 6100, causes the communication device 6100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0323] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A sensing method, characterized in that, The method, executed by a terminal, includes: Determine the beamforming vector of the sensing reference signal; The sensing reference signal is transmitted over the first resource using the beamforming vector.

2. The method according to claim 1, characterized in that, The first resource is a sounding reference signal (SRS) resource or an SRS resource set.

3. The method according to claim 2, characterized in that, The purpose of the SRS resource or the SRS resource set is configured for sensing.

4. The method according to any one of claims 1-3, characterized in that, The beamforming vector is determined by an angle range of N dimensions, where N is an integer greater than or equal to 1.

5. The method according to claim 4, characterized in that, The angle ranges of the N dimensions include the angle ranges of the horizontal dimension and / or the angle ranges of the vertical dimension.

6. The method according to claim 4 or 5, characterized in that, The method further includes: Receive first information sent by the network device, the first information being used to indicate the angle range of at least one of the N dimensional angle ranges.

7. The method according to any one of claims 4-6, characterized in that, The angle ranges among the N dimensions that are not indicated by the network device are the default values.

8. The method according to any one of claims 4-7, characterized in that, The angle range refers to the angle range in the global coordinate system; or... The angle range refers to the angle range in the local coordinate system of the terminal.

9. The method according to claim 8, characterized in that, The terminal local coordinate system is determined by at least one of the following: The orientation of the terminal; The direction of movement of the terminal; The orientation of the first antenna panel of the terminal, wherein the first antenna panel is one of the terminal antenna panels.

10. The method according to any one of claims 6-9, characterized in that, The method further includes: Send a second message to the network device, the second message being used to indicate the transformation relationship between the terminal's local coordinate system and the global coordinate system.

11. The method according to claim 10, characterized in that, The second information includes the transformation matrix between the terminal's local coordinate system and the global coordinate system; or, The second information includes at least one of three rotation angles, which are the angles along the z-axis, y-axis, and x-axis respectively required to change one of the terminal local coordinate system and the global coordinate system to the other.

12. The method according to claim 11, characterized in that, The rotation angles that are not included in the second information are the default values.

13. The method according to any one of claims 1-12, characterized in that, The method further includes: The sensed quantity is obtained by measuring the echo of the sensed reference signal.

14. A sensing method, characterized in that, Performed by a network device, the method includes: Send first information to the terminal, the first information being used to indicate at least one of the N-dimensional angle ranges, the N-dimensional angle ranges being used by the terminal to determine the beamforming vector of the sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

15. The method according to claim 14, characterized in that, The first resource is an SRS resource or an SRS resource set.

16. The method according to claim 15, characterized in that, The purpose of the SRS resource or the SRS resource set is configured for sensing.

17. The method according to any one of claims 14-16, characterized in that, The angle ranges of the N dimensions include the angle ranges of the horizontal dimension and / or the angle ranges of the vertical dimension.

18. The method according to any one of claims 14-17, characterized in that, The angle ranges among the N dimensions that are not indicated by the first information are default values.

19. The method according to any one of claims 14-18, characterized in that, The angle range refers to the angle range in the global coordinate system; or... The angle range refers to the angle range in the local coordinate system of the terminal.

20. The method according to claim 19, characterized in that, The terminal local coordinate system is determined by at least one of the following: The orientation of the terminal; The direction of movement of the terminal; The orientation of the first antenna panel of the terminal, wherein the first antenna panel is one of the terminal antenna panels.

21. The method according to any one of claims 14-20, characterized in that, The method further includes: The terminal sends a second piece of information, which indicates the transformation relationship between the terminal's local coordinate system and global coordinate system. The first information is determined based on the second information.

22. The method according to claim 21, characterized in that, The second information includes the transformation matrix between the terminal's local coordinate system and the global coordinate system; or, The second information includes at least one of three rotation angles, which are the angles along the z-axis, y-axis, and x-axis respectively required to change one of the terminal local coordinate system and the global coordinate system to the other.

23. The method according to claim 22, characterized in that, The rotation angles that are not included in the second information are the default values.

24. A terminal, characterized in that, include: The processing module is configured to determine the beamforming vector of the sensing reference signal; The transceiver module is configured to transmit the sensing reference signal over the first resource using the beamforming vector.

25. A network device, characterized in that, include: The transceiver module is configured to send first information to the terminal, the first information being used to indicate at least one of N angular ranges, the N angular ranges being used by the terminal to determine a beamforming vector for a sensing reference signal, the beamforming vector being used to transmit the sensing reference signal on a first resource, where N is an integer greater than or equal to 1.

26. A communication system, characterized in that, include: The terminal is configured to implement the sensing method according to any one of claims 1-13; as well as, A network device configured to implement the sensing method according to any one of claims 14-23.

27. A communication device, characterized in that, include: One or more processors; The communication device is used to perform the sensing method according to any one of claims 1-23.

28. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, the communication device performs the sensing method as described in any one of claims 1-23.

29. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by the communication device, it implements the sensing method as described in any one of claims 1-23.

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