Communication method, communication device, communication system, storage medium, and program product

Abstract

The present application relates to a communication method, a communication device, a communication system, a storage medium, and a program product. The method comprises: a first network element receiving first information sent by an access network device, the first information comprising sensing assistance information of a candidate sensing transceiver pair; and determining a first sensing transceiver pair on the basis of the first information, wherein the first sensing transceiver pair comprises a first sensing receiver used for executing a sensing task and a first sensing transmitter used for executing the sensing task. According to the technical solution provided by the present application, a first network element can select an appropriate sensing transceiver pair, thereby improving the sensing effect.

Description

Communication methods, communication equipment, communication systems, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to a communication method, communication device, communication system, storage medium, and program product. Background Technology

[0002] A wireless signal transmitter emits radio waves, and a wireless signal receiver receives them. During the transmission of radio waves, they may be blocked by objects (hereinafter referred to as reflectors), resulting in wireless transmission effects such as reflection, diffraction, transmission, phase change, Doppler shift, and signal intensity variation. The wireless signal receiver obtains relevant information about the reflector by receiving the radio waves, comparing the transmitted and received signals, or recording the historical changes in the received signal. Summary of the Invention

[0003] To overcome the technical problem of terminals not knowing the type of resources transmitted by cells in related technologies, this disclosure provides a communication method, communication equipment, communication system, storage medium, and program product.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a first network element, the first network element being used to implement a sensing function, the method comprising:

[0005] Receive first information sent by the access network device, the first information including sensing auxiliary information of the candidate sensing transceiver pair;

[0006] Based on the first information, a first sensing transceiver pair is determined, which includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

[0007] According to a second aspect of the present disclosure, a communication method is provided, performed by an access network device, the method comprising:

[0008] Send first information to a first network element. The first information includes sensing auxiliary information of a candidate sensing transceiver pair. The first network element is used to implement sensing functions. The first information is used by the first network element to determine a first sensing transceiver pair. The first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

[0009] According to a third aspect of the embodiments of this disclosure, a communication method is provided, executed by a terminal, the method comprising:

[0010] Receive the seventh message sent by the access network device;

[0011] The reference signal is measured based on the seventh information, and a measurement result is generated;

[0012] The measurement results are sent to the access network device, and the measurement results are used by the access network device to generate first information, the first information including sensing auxiliary information of candidate sensing transceiver pairs.

[0013] According to a fourth aspect of the present disclosure, a communication device is provided, which is used to perform the communication method described in any one of the first aspects of the present disclosure, or the communication device is used to perform the communication method described in any one of the second aspects of the present disclosure, or the communication device is used to perform the communication method described in any one of the third aspects of the present disclosure.

[0014] According to a fifth aspect of the present disclosure, a communication system is provided, including a first network element, an access network device, and a terminal, wherein the first network element is configured to implement the communication method described in any one of the first aspects of the present disclosure, the access network device is configured to implement the communication method described in any one of the second aspects of the present disclosure, and the terminal is configured to implement the communication method described in any one of the third aspects of the present disclosure.

[0015] According to a sixth 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 a communication method as described in any one of the first aspects of the present disclosure, or cause the communication device to perform a communication method as described in any one of the second aspects of the present disclosure, or cause the communication device to perform a communication method as described in any one of the third aspects of the present disclosure.

[0016] According to a seventh aspect of the present disclosure, a program product is provided, comprising at least one program and instructions, wherein when the program and instructions are executed by a communication device, the program and instructions implement the steps of any of the communication methods described in the first aspect of the present disclosure, or when the program and instructions are executed by a communication device, the program and instructions implement the steps of any of the communication methods described in the second aspect of the present disclosure, or when the program and instructions are executed by a communication device, the program and instructions implement the steps of any of the communication methods described in the third aspect of the present disclosure.

[0017] By adopting the above technical solution, at least the following beneficial technical effects can be achieved:

[0018] The first network element receives first information sent by the access network device. The first information includes sensing auxiliary information for candidate sensing transceiver pairs. Based on the first information, a first sensing transceiver pair is determined. The first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks. This allows the first network element to select a suitable sensing transceiver pair and improve the sensing effect. Attached Figure Description

[0019] 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.

[0020] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure.

[0021] Figure 1B is a schematic diagram illustrating a sensing mode according to an embodiment of the present disclosure.

[0022] Figure 1C is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure.

[0023] Figure 1D is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure.

[0024] Figure 1E is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure.

[0025] Figure 1F is a schematic diagram illustrating the principle of target sensing in a dual-station sensing mode according to an embodiment of the present disclosure.

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

[0027] Figure 2B is a schematic diagram of the sensing area according to an embodiment of the present disclosure.

[0028] Figure 2C is a schematic diagram illustrating a sensing direction according to an embodiment of the present disclosure.

[0029] Figure 2D is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0030] Figure 2E is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0031] Figure 2F is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure.

[0032] Figure 3A is a schematic flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0033] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure.

[0034] Figure 4 is a schematic diagram of the structure of the first network element according to an embodiment of the present disclosure.

[0035] Figure 5 is a schematic diagram of the structure of an access network device according to an embodiment of the present disclosure.

[0036] Figure 6 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.

[0037] Figure 7 is a schematic diagram of the structure of a communication device 7100 according to an embodiment of the present disclosure.

[0038] Figure 8 is a schematic diagram of the structure of chip 7200 according to an embodiment of the present disclosure. Detailed Implementation

[0039] This disclosure provides a communication method, communication device, communication system, storage medium, and program product.

[0040] In a first aspect, embodiments of this disclosure propose a communication method executed by a first network element, the first network element being used to implement a sensing function, the method comprising:

[0041] Receive first information sent by the access network device, the first information including sensing auxiliary information of the candidate sensing transceiver pair;

[0042] Based on the first information, a first sensing transceiver pair is determined, which includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

[0043] In the above embodiments, the first network element determines the sensing transceiver pair for performing the sensing task based on the first information sent by the access network device, thereby ensuring the accuracy of the sensing transceiver pair and improving the sensing effect.

[0044] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0045] Send a second message to the access network device, the second message being used to request the sensing information of the candidate sensing transceiver pair.

[0046] In the above embodiments, the first network element triggers the information reporting of the access network device based on the second information, avoiding false triggering of the first information and improving the communication efficiency of the sensing transceiver in the determination process.

[0047] In conjunction with some embodiments of the first aspect, in some embodiments, the second information includes at least one of the following:

[0048] A first pairing request, wherein the first pairing request is used to request a sense transceiver pair from the access network device;

[0049] A list of Transceiver Points (TRPs) is sent, wherein the TRP list includes one or more recommended sensing transceiver pairs.

[0050] A terminal list, which includes one or more recommended sensing terminals.

[0051] In the above embodiments, the first network element can send different types of second information to the access network device according to the current network environment to request different sensing information, thereby improving the robustness of the request action during the first information request process.

[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the terminal list includes at least one of the following:

[0053] One or more terminal identifiers;

[0054] One or more terminal identifiers belonging to the same service cell;

[0055] One or more terminal identifiers belonging to the same TRP coverage area;

[0056] One or more terminal identifiers belonging to the same access network device.

[0057] In the above embodiments, the terminal list sent by the first network element to the access network device includes various types of terminal identifiers, enabling the access network device to select suitable candidate terminals based on the current network environment, thereby improving the accuracy of candidate terminals and ensuring the accuracy of the transceiver.

[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the perception assistance information includes at least one of the following:

[0059] Identifier of candidate sensing receiver;

[0060] Identifier of the candidate sensing transmitter;

[0061] The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair;

[0062] The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair;

[0063] The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair;

[0064] The sixth information is used to indicate the Quality of Service (QoS) of the candidate sensing transceiver pair.

[0065] In the above embodiments, the access network device reports the sensing auxiliary information of the candidate sensing transceivers to the first network element. The sensing auxiliary information includes various types, so that the first network element can determine the sensing transceiver pair according to the current sensing needs and the sensing auxiliary information, thereby improving the sensing effect.

[0066] Secondly, embodiments of this disclosure provide a communication method executed by an access network device, the method comprising:

[0067] Send first information to a first network element. The first information includes sensing auxiliary information of a candidate sensing transceiver pair. The first network element is used to implement sensing functions. The first information is used by the first network element to determine a first sensing transceiver pair. The first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

[0068] In the above embodiments, the access network device sends first information to the first network element, so that the first network element determines the sensing transceiver pair based on the first information, thereby ensuring the accuracy of the sensing transceiver pair and improving the sensing effect.

[0069] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0070] The system receives second information sent by the first network element, the second information being used to request sensing information from the candidate sensing transceiver pair.

[0071] In conjunction with some embodiments of the second aspect, in some embodiments, the second information includes at least one of the following:

[0072] A first pairing request, wherein the first pairing request is used to request a sense transceiver pair from the access network device;

[0073] A list of recommended perceptive transceivers (TRPs) is provided, which includes one or more recommended perceptive transceiver pairs.

[0074] A terminal list, which includes one or more recommended sensing terminals.

[0075] In conjunction with some embodiments of the second aspect, in some embodiments, the terminal list includes at least one of the following:

[0076] One or more terminal identifiers;

[0077] One or more terminal identifiers belonging to the same service cell;

[0078] One or more terminal identifiers belonging to the same TRP;

[0079] One or more terminal identifiers belonging to the same access network device.

[0080] In conjunction with some embodiments of the second aspect, in some embodiments, the perception assistance information includes at least one of the following:

[0081] The identifier of the candidate sensing receiver;

[0082] The identifier of the candidate sensing transmitter;

[0083] The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair;

[0084] The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair;

[0085] The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair;

[0086] The sixth information is used to indicate the QoS of the candidate sensing transceiver pair.

[0087] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0088] A seventh message is sent to the candidate terminal, the seventh message being used to instruct the candidate terminal to perform a reference signal measurement;

[0089] Receive the measurement results sent by the candidate terminal;

[0090] The first information is generated based on the measurement results.

[0091] In the above embodiments, the access network device selects the sensing transceiver pair based on the measurement results fed back by the candidate terminal, thereby improving the accuracy of the sensing transceiver pair.

[0092] In conjunction with some embodiments of the second aspect, in some embodiments, the measurement results include:

[0093] Transmit beam identifier;

[0094] Propagation mode information, which includes line-of-sight (LOS) propagation or non-line-of-sight (NLOS) propagation;

[0095] Path loss information;

[0096] Signal-to-interference-plus-noise ratio (SINR)

[0097] In the above embodiments, the measurement results include multiple types, enabling the access network device to determine the sensing transceiver pair based on the multiple types of measurement results, thereby ensuring the accuracy of the sensing transceiver pair.

[0098] In conjunction with some embodiments of the second aspect, in some embodiments, the candidate terminal includes at least one of the following:

[0099] Terminals in the Radio Resource Control (RRC) connected state;

[0100] Terminals authorized to perform sensing operations.

[0101] In the above embodiments, the device type of the candidate terminal is limited to determine the accuracy of the measurement results reported by the candidate terminal.

[0102] In conjunction with some embodiments of the second aspect, in some embodiments, the method includes:

[0103] Receive second information sent by the first network element, the second information including one or more recommended sensing terminals;

[0104] Based on the second information, the candidate terminal is determined.

[0105] In the above embodiments, the access network device determines candidate terminals from the sensing terminals recommended by the first network element, thereby avoiding blindly searching for candidate terminals and ensuring the communication efficiency of the communication system.

[0106] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0107] Send paging information to the first coverage area, the paging information including first condition information;

[0108] Receive paging response information sent by the candidate terminal, and establish or restore connection with the candidate terminal.

[0109] In the above embodiments, the access network device uses conditional paging to paging candidate terminals within the designated coverage area, ensuring the accuracy of the candidate terminals and thus improving the accuracy of the measurement results.

[0110] In conjunction with some embodiments of the second aspect, in some embodiments, the first condition information includes at least one of the following:

[0111] Transmit beam identifier;

[0112] SINR threshold;

[0113] Path loss threshold.

[0114] In the above embodiments, the access network device can set different first conditions based on different network environments to adapt to the retrieval needs of the sensing transceiver under different circumstances, thereby improving the robustness of the paging method of the access network device.

[0115] Thirdly, embodiments of this disclosure provide a communication method executed by a terminal, the method comprising:

[0116] Receive the seventh message sent by the access network device;

[0117] The reference signal is measured based on the seventh information, and a measurement result is generated;

[0118] The measurement results are sent to the access network device, and the measurement results are used by the access network device to generate first information, the first information including sensing auxiliary information of candidate sensing transceiver pairs.

[0119] In conjunction with some embodiments of the third aspect, in some embodiments, the method further includes:

[0120] Receive paging information sent by the access network device, the paging information including first condition information;

[0121] Based on the first condition information, it is determined that the paging condition is met, and a paging response information is sent to the access network device. The paging response information is used to establish or restore a connection with the access network device.

[0122] In conjunction with some embodiments of the third aspect, in some embodiments, the first condition information includes at least one of the following:

[0123] Transmit beam identifier;

[0124] SINR threshold;

[0125] Path loss threshold.

[0126] In conjunction with some embodiments of the third aspect, in some embodiments, the measurement result includes at least one of the following:

[0127] Transmit beam identifier;

[0128] Propagation mode information, which includes line-of-sight (LOS) propagation or non-line-of-sight (NLOS) propagation;

[0129] Path loss information;

[0130] Signal-to-interference-plus-noise ratio (SINR)

[0131] In conjunction with some embodiments of the third aspect, in some embodiments, the perception assistance information includes at least one of the following:

[0132] Identifier of candidate sensing receiver;

[0133] Identifier of the candidate sensing transmitter;

[0134] The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair;

[0135] The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair;

[0136] The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair;

[0137] The sixth information is used to indicate the Quality of Service (QoS) of the candidate sensing transceiver pair.

[0138] Fourthly, embodiments of this disclosure provide a communication device for performing the communication method described in any one of the first aspects of this disclosure, or for performing the communication method described in any one of the second aspects of this disclosure, or for performing the communication method described in any one of the third aspects of this disclosure.

[0139] Fifthly, embodiments of this disclosure provide a communication system including a first network element, an access network device, and a terminal, wherein the first network element is configured to implement the communication method described in any one of the first aspects of this disclosure, the access network device is configured to implement the communication method described in any one of the second aspects of this disclosure, and the terminal is configured to implement the communication method described in any one of the third aspects of this disclosure.

[0140] In a sixth aspect, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform a communication method as described in any one of the first aspects of this disclosure, or cause the communication device to perform a communication method as described in any one of the second aspects of this disclosure, or cause the communication device to perform a communication method as described in any one of the third aspects of this disclosure.

[0141] In a seventh aspect, embodiments of this disclosure provide a program product comprising at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the steps of any of the communication methods described in the first aspect of this disclosure; or when the program or instructions are executed by a communication device, they implement the steps of any of the communication methods described in the second aspect of this disclosure; or when the program or instructions are executed by a communication device, they implement the steps of any of the communication methods described in the third aspect of this disclosure.

[0142] Eighthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the methods described according to optional implementations of the first, second, or third aspects above.

[0143] It is understood that the aforementioned communication equipment, communication system, storage medium, program product, etc., 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.

[0144] This disclosure provides a communication method, communication device, communication system, storage medium, and program product. In some embodiments, terms such as information processing method and communication method may be used interchangeably.

[0145] 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. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0146] 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.

[0147] 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.

[0148] In the embodiments disclosed herein, "multiple" refers to two or more.

[0149] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0150] 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 whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0151] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); 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, and C.

[0152] 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.

[0153] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0154] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0155] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0156] 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”.

[0157] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0158] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0159] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / 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," and "bandwidth part (BWP)" can be used interchangeably.

[0160] In some embodiments, the terms "terminal", "terminal device", "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", and "client" can be used interchangeably.

[0161] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0162] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0163] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0164] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0165] 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.

[0166] Figure 1A is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1A, the communication system 100 includes a first network element 101, an access network device 102, and a terminal 103.

[0167] In some embodiments, the first network element 101 is responsible for managing sensing services, including: processing sensing service requests, processing sensing measurement data, selecting sensing devices, controlling the execution of sensing services, and analyzing sensing measurement data, etc., and the names are not limited thereto.

[0168] In some embodiments, the first network element 101 is, for example, a sensing function (SF) network element.

[0169] In some embodiments, the access network device 102 may be a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: an evolved Node B (eNB), a next-generation eNB (ng-eNB), a next-generation Node B (gNB), a node B (NB), a home node B (HNB), a home evolved node B (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a base station in a 6G communication system, an open RAN, a cloud RAN, a base station in other communication systems, and an access node in a Wi-Fi system, but is not limited thereto.

[0170] 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.

[0171] 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.

[0172] In some embodiments, terminal 103 includes, for example, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, 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, but is not limited thereto.

[0173] It is understood that the communication 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.

[0174] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1A, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1A are illustrative. The communication system may include all or some of the main bodies in FIG1A, or it may include other main bodies outside of FIG1A. 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.

[0175] 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).

[0176] In some embodiments, the wireless signal receiver can obtain relevant information about the reflector by receiving radio waves and comparing the transmitted and received signals, or by recording historical changes in the received signal. This relevant information about the reflector may include at least one of the following:

[0177] The coordinate information of the reflector, which can be the coordinate information of the reflector relative to the wireless signal receiver, such as distance, horizontal angle and vertical angle;

[0178] The velocity information of the reflector, such as the speed and direction of movement of the reflector relative to the wireless signal receiver;

[0179] Information on the reflector's behavioral patterns, such as running, walking, approaching, moving, falling, swinging, etc. Alternatively, weather information (e.g., rain, snow, clear skies), or traffic information at the reflector's current location (e.g., congestion, accidents, smooth traffic).

[0180] In some embodiments, in a wireless communication network, the wireless signal transmitter may include at least one of the following: a base station, a wireless access point (e.g., an AP (Access Point) of a WiFi (Wireless Fidelity) network), and a terminal. The wireless signal receiver may include at least one of the following: a base station, a wireless access point, and a terminal.

[0181] In some embodiments, ISAC (Integrated Sensing and Communication) technology is a novel communication technology within the next generation of communication technologies. It aims to integrate sensing capabilities into the design of communication systems, enabling these systems to provide sensing as a service alongside communication. Current research on ISAC technology primarily focuses on applicable scenarios such as TRP (Transmission and Receiving Point)-TRP bistatic, TRP monostatic, TRP-UE bistatic, UE-TRP bistatic, UE-UE bistatic, and UE monostatic. During the design process, ISAC systems need to simultaneously consider the service requirements of both communication and sensing.

[0182] Figure 1B is a schematic diagram illustrating a sensing mode according to an embodiment of the present disclosure. As shown in Figure 1B, the communication scenario based on ISCA technology includes at least six sensing modes.

[0183] Mode 1: Base station monostatic transmission and reception (TRP). The base station transmits sensing signals, which are then received and measured by the base station after passing through the environment or objects in the environment.

[0184] Mode 2: Base station A transmits, base station B receives (i.e., TRP-TRP bistatic). Base station A transmits a sensing signal, which passes through the environment or objects in the environment, and base station B receives and measures the reflected / scattered waves.

[0185] Mode 3: Terminal transmits, base station receives (i.e., UE-TRP bistatic). The terminal sends a sensing signal, which passes through the environment or objects in the environment, and the base station receives and measures the reflected / scattered waves.

[0186] Mode 4: Base station transmits, terminal receives (i.e., TRP-UE bistatic). The base station transmits a sensing signal, which is reflected by the object being measured, and the terminal receives and measures the reflected / scattered wave.

[0187] Mode 5: Terminal monostatic (i.e., UE-transmitted and received). The terminal sends a sensing signal, which passes through the environment or objects in the environment, and the terminal receives and measures the reflected / scattered waves.

[0188] Mode 6: Terminal A transmits, Terminal B receives (i.e., UE-UE bistatic). Terminal A sends a sensing signal, which passes through the environment or objects in the environment, and Terminal B receives and measures the reflected / scattered waves.

[0189] In some embodiments, the above six sensing modes can be divided into two categories: the first category is mono-static (single-station sensing mode), which means that the same node sends the sensing RS (Reference Signal) and receives the sensing RS; the second category is bistatic-static (bi-station sensing mode), which means that different nodes send the sensing RS and receive the sensing RS.

[0190] Figure 1C is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure. As shown in Figure 1C, the SF network element is used to implement sensing functions. The SF network element is deployed in the CN (Core Network) and interacts with the CN to schedule the SF network element to provide sensing services.

[0191] Figure 1D is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure. As shown in Figure 1D, SF network elements are deployed in the CN. SF network elements may include sensing control function network elements and sensing data plane function network elements. The sensing control function network elements are used to implement control and management of sensing functions, while the sensing data plane function network elements are used to collect and process sensing data. In this sensing reference architecture, the SF network elements in the CN have separate control plane (CP) and user plane (UP), thereby independently allocating resources based on their respective communication needs and improving resource utilization.

[0192] Figure 1E is a schematic diagram of a sensing reference architecture according to an embodiment of the present disclosure. As shown in Figure 1E, the SF network element, as the central control node in the access network equipment, is deployed on the RAN (Radio Access Network) side and is responsible for processing sensing-related control and data.

[0193] Figure 1F is a schematic diagram illustrating the principle of target sensing in a dual-station sensing mode according to an embodiment of the present disclosure. As shown in Figure 1F, given the known positions of Tx (Transmitter) and Rx (Receiver), the position and velocity of the target can be determined by measuring the transmission time and angle of arrival of the sensing signal using the following formula: P tg =(x R -R R cosθ R y R +R R sinθ R )

[0194] Among them, P tg To perceive the position coordinates of the target, (x R y R ) represent the X and Y coordinates of the sensing receiver, respectively, and R R To determine the distance between the sensing target and the sensing receiver, θ R Let Tx be the angle between the line connecting the sensing target and the sensing receiver and the LOS path. When Tx and Rx are stationary, the moving velocity of the sensing target can be obtained based on the Doppler frequency shift. For example, the moving velocity of the sensing target can be determined using the following formula:

[0195] Among them, f D For Doppler shift, λ c R is the wavelength corresponding to the carrier frequency, β is the angle between the straight line corresponding to the sensing transmitter and the sensing target, and the straight line corresponding to the sensing receiver and the sensing target, v is the moving speed of the sensing target, and R is the moving speed of the sensing target.T (t)+R R (t) represents the distance of the reference signal reflected from the sensing transmitter to the sensing receiver after being reflected by the sensing target, where R T (t)+R R (t)=R bis δ represents the distance between the direction of movement of the sensing target and the line connecting the sensing target and the sensing receiver. For example, β can be traversed via L and R. t R r And obtained from the angle of arrival, R r To perceive the distance between Target and Rx, R R It can be determined using the following formula:

[0196] Among them, R bis Let Rx be the transmission distance of the sensing signal from Tx through the NLOS (Non-Line of Sight) of the sensing target to Rx, where Rx is the distance of the sensing signal. bis It can be determined using the following formula:

[0197] R bis =R T +R R =τ×c

[0198] In some embodiments, because monostatic mode needs to consider interference isolation between transceiver antennas, bistatic mode has lower requirements for transceiver antennas and lower costs in deployment compared to monostatic mode. Therefore, bistatic mode is used more frequently in sensing communication. In most cases, bistatic mode involves the base station transmitting and the UE (User Equipment) receiving, i.e., Tx is the base station TRP and Rx is the UE. However, when the sensing target is unknown, how to select a suitable bistatic transceiver to perform sensing is a problem that urgently needs to be solved. In view of this, this embodiment provides a method for determining the pairing of sensing transceivers through signal measurement, assisting SF network elements in selecting sensing transceivers in bistatic mode to improve the sensing effect.

[0199] Figure 2A is an interactive schematic diagram illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiments of the present disclosure relate to a communication method, which includes:

[0200] In step S2101, the first network element 101 sends the second information to the access network device 102.

[0201] In some embodiments, the access network device receives second information.

[0202] In some embodiments, the second information is used to request the sensing information of the candidate sensing transceiver pair.

[0203] In some embodiments, the name of the second information is not limited, and it may be, for example, "sensing transceiver pairing request information", "sensing information request", "sensing transceiver request", "sensing auxiliary information request", etc.

[0204] In some embodiments, the first network element is used to implement sensing functions. For example, the main functions of the first network element may include at least one of the following:

[0205] (1) Perception control function: responsible for processing perception service requests, including receiving perception requests from application servers or network elements and controlling the execution of perception services;

[0206] (2) Sensing and computing function: The first network element has the ability to process sensing measurement data, and can process these data independently or jointly with other network elements, and output the sensing results to the sensing requester;

[0207] (3) Sensing device selection: The first network element can select appropriate sensing devices, including: protocol-defined devices and non-protocol-defined devices, to perform specific sensing tasks;

[0208] (4) Sensing service control: The first network element can be responsible for controlling the execution of sensing services, including starting and stopping sensing tasks;

[0209] (5) Data transmission and processing: The first network element is responsible for collecting and analyzing the sensing measurement data generated by the terminal or base station, obtaining the final sensing result, and opening it to the UE or other applications;

[0210] (6) Interface interaction: A series of new interaction interfaces are added between the first network element and other network elements, including interfaces with AMF (Authentication Management Function) network elements, NEF (Network Element Function) network elements, UDM (Unified Data Management) network elements, NWDAF (Network Data Analytics Function) network elements, PCF (Policy Control Function) network elements, LMF (Location Management Function) network elements and UPF (User Port Function) network elements, to transmit perception control signaling, perception measurement data and perception results;

[0211] (7) Intelligent Perception Function: The first network element can be combined with artificial intelligence technology to achieve more accurate target recognition and trajectory tracking, especially in the perception and recognition of "low, slow, and small" targets. For example, in the recognition of drones and birds;

[0212] (8) Sensing Area Management: The first network element can manage the sensing area, define different attributes, and register and correspond accordingly based on changes in the capabilities of the sensing base station / terminal.

[0213] In some embodiments, the first network element may be an SF network element, but is not limited thereto; the first network element may also be other network elements used to implement the above functions.

[0214] In some embodiments, the first network element can be deployed in the core network equipment. Other devices can interact with the core network equipment to schedule the SF network element to provide sensing services to other devices. For example, the first network element can be deployed independently in the core network equipment, implementing control plane sensing functions and user plane sensing functions based on the first network element. Optionally, the first network element can also implement CP-UP separation in the core network equipment, splitting the first network element into a sensing control function network element and a sensing data plane function network element. The sensing control function network element is used to implement the control of sensing functions, and the sensing data plane function network element is used to implement the collection, processing, and transmission of sensing data. Based on the CP-UP separation configuration, resources can be allocated independently, improving resource utilization and ensuring the sensing communication performance of the first network element during the execution of sensing function management.

[0215] Optionally, in some embodiments, the first network element can also be deployed in the access network device as a central control node, responsible for processing sensing-related control and data. By deploying the first network element in the access network device, sensing services in the access network device can be effectively managed and controlled, improving the intelligence level and service quality of the access network device.

[0216] In some embodiments, based on whether the transmitting and receiving ends of the sensing reference signal are the same node, the sensing mode can be divided into two types: the first type is mono-static (single-site sensing mode), where the first node sends a sensing reference signal to the sensing target, the sensing reference signal is reflected by the sensing target, and then the first node receives the reflected signal. The first node can be a base station or a terminal device. The second type is bistatic-static (two-site sensing mode), where the second node sends a sensing reference signal to the sensing target, the sensing target reflects the sensing reference signal, and then sends the reflected signal to a third node. Both the second and third nodes can be base stations or terminal devices. In the mono-site sensing mode, since the first node performs both signal transmission and reception, there is no need to select different nodes as the transmitting and receiving ends. The first network element instructs the first node to execute the sensing service based on the current network environment and the sensing service request. However, in the two-site sensing mode, to improve sensing accuracy, high-precision time and frequency synchronization is required between the transmitting and receiving ends to ensure the synchronization of the transmitted and received signals. Therefore, the first network element needs to select the transceiver device to perform the sensing service based on the device information of the candidate transceivers.

[0217] In some embodiments, this embodiment is applied in a dual-site sensing mode, where the first network element selects a first sensing transceiver pair from one or more candidate sensing transceiver pairs to perform the sensing task. Each candidate sensing transceiver pair includes a candidate sensing receiver and a candidate sensing transmitter. This embodiment does not limit the combination of candidate sensing transceiver pairs. For example, a candidate sensing transceiver pair may include at least one of the following:

[0218] Candidate sensing transceiver pair 1: TRP-ID 1, UE-ID 1;

[0219] Candidate sensing transceiver pair 2: TRP-ID 1, UE-ID 2;

[0220] Candidate sensing transceiver pair 3: TRP-ID 2, UE-ID 3;

[0221] Candidate sensing transceiver pair 4: TRP-ID 1, UE-ID 3;

[0222] Candidate sensing transceiver pair 5: TRP-ID 2, UE-ID 2;

[0223] Candidate sensing transceiver pair 6: TRP-ID 2, TRP-ID 3;

[0224] Candidate sensing transceiver pair 7: UE-ID 2, UE-ID 3.

[0225] In some embodiments, the TRP ID is used to identify an antenna element or antenna group in an access network device used to transmit or receive sensing signals.

[0226] In some embodiments, the name of the TRP ID is not limited, and it may be, for example, “antenna element ID”, “antenna group ID”, “antenna array ID”, etc.

[0227] In some embodiments, the first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

[0228] For example, the first network element requests sensing auxiliary information for the candidate sensing transceiver pair from the access network device via the second information. The first network element can determine the sensing functions supported by the candidate sensing transceiver pair based on the sensing auxiliary information reported by the access network device. The supported sensing functions may include at least one of the following: the sensing area supported by the candidate sensing transceiver pair, the sensing QoS (Quality of Service) supported by the candidate sensing transceiver pair, and the sensing type supported by the candidate sensing transceiver pair.

[0229] Optionally, in some embodiments, the second information is a perception information request, which may include at least one of the following:

[0230] The first pairing request is used to request a sense transceiver pair from the access network device.

[0231] A list of Transceiver Points (TRPs) is provided, which includes one or more Recommended Aware Transceiver Pairs.

[0232] The terminal list includes one or more recommended sensing terminals.

[0233] For example, the first pairing request is used to request the access network device to provide one or more candidate sensing transceiver pairs to the first network element. The first pairing request may include sensing conditions, used to request one or more candidate sensing transceiver pairs that meet the sensing conditions, and the access network device can retrieve one or more candidate sensing transceiver pairs that meet the sensing conditions for the first network element;

[0234] A TRP list is provided, which includes one or more recommended sensing transceiver pairs suggested by the first network element to the access network device. The access network device can verify the one or more recommended sensing transceiver pairs based on the TRP list and send the sensing assistance information of one or more candidate sensing transceiver pairs that meet the criteria to the first network element.

[0235] The terminal list indicates one or more recommended sensing terminals suggested by the first network element. These recommended sensing terminals can function as sensing receivers or sensing transmitters in a dual-site sensing mode. The access network equipment verifies the suggested one or more recommended sensing terminals based on this terminal list and sends sensing assistance information for one or more candidate terminal pairs that meet the criteria to the first network element.

[0236] Optionally, in some embodiments, the terminal list may include at least one of the following:

[0237] One or more terminal identifiers;

[0238] One or more terminal identifiers belonging to the same service cell;

[0239] One or more terminal identifiers belonging to the same TRP coverage area;

[0240] One or more terminal identifiers belonging to the same access network device.

[0241] For example, the terminal list is one or more recommended sensing terminals suggested by the first network element to the access network device. The terminal list may include at least one of the following:

[0242] One or more terminal identifiers, which are used to identify a unique terminal. For example, the terminal identifier is NGAP (Next Generation Application Protocol) - UE ID (NG Interface User Equipment Identifier);

[0243] One or more terminal identifiers that provide communication services to the same serving cell, for example, terminal 1, terminal 2, and terminal 3 that all provide communication services to serving cell A;

[0244] One or more terminal identifiers under the same TRP service network coverage, for example, terminal 1, terminal 2 and terminal 3 under the service network coverage area corresponding to TRP1;

[0245] One or more terminal identifiers connected to the same access network device, for example, terminal 1, terminal 2 and terminal 3 connected to the access network device.

[0246] In some embodiments, the first network element can determine the terminal list based on the terminal's location information and the serving cell information that provides services to the terminal. For example, the first network element can determine whether a terminal is suitable for the current sensing service based on the terminal's location information. For instance, if the terminal's location information determines that it is within a preset range of the sensing target, then the terminal can be identified as a recommended sensing terminal to the access network equipment. The first network element can also determine, based on the serving cell information, that the terminal is within the same serving cell as the sensing target, and thus identify the terminal as a recommended sensing terminal.

[0247] In some embodiments, the first network element may determine a suggested list of terminals and one or more terminal identifiers of one or more recommended sensing terminals through the AMF network element.

[0248] In some embodiments, the first network element does not need to send the second information to the access network device. Instead, the access network device directly reports the recommended candidate sensing transceiver pair sensing auxiliary information to the first network element. In this case, step S2101 is omitted.

[0249] In step S2102, the access network device 102 determines the candidate terminal 103 and sends the seventh information to the candidate terminal 103.

[0250] For example, to determine candidate sensing transceiver pairs, the access network device needs to select candidate terminals for reference signal measurement from one or more terminals within its coverage area, based on current sensing service requirements. The candidate terminals are instructed via the seventh information, and they measure the reference signal and report the measurement results to the access network device. The access network device analyzes the reference signal measurement results and filters out one or more candidate sensing transceiver pairs that meet the current sensing service conditions.

[0251] In some embodiments, the candidate terminal receives the seventh information.

[0252] In some embodiments, the seventh information is used to request the candidate terminal to perform reference signal measurement and to feed back the measurement result of the reference signal to the access network device.

[0253] For example, the seventh piece of information may include at least one of the following:

[0254] Request candidate terminals to report whether a LOS (Line of Sight) path exists;

[0255] Request candidate terminals to report the SINR (Signal to Interference plus Noise Ratio) of the reference signal;

[0256] Request candidate terminals to report the path loss of the LOS path.

[0257] In some embodiments, the name of the seventh information is not limited, and it may be, for example, "measurement indication information", "measurement reporting instruction", "measurement configuration information", etc.

[0258] In some embodiments, the seventh information may include a measurement configuration of a reference signal that indicates the measurement level, for example, the measurement configuration instructing the candidate terminal to perform beam-level measurements.

[0259] In some embodiments, the reference signal in this embodiment may be a communication reference signal and / or a sensing reference signal.

[0260] Optionally, in some embodiments, step S2102 above includes:

[0261] The access network equipment determines the candidate terminals based on the second information.

[0262] For example, the second information includes one or more recommended sensing terminals suggested by the first network element to the access network device, and the access network device can use the one or more recommended sensing terminals as candidate terminals.

[0263] In some embodiments, the candidate terminal includes at least one of the following:

[0264] Terminals in RRC (Radio Resource Control) connection state;

[0265] Terminals authorized to perform sensing operations.

[0266] For example, in RRC connected mode, an RRC connection has been established between the terminal and the access network device. The access network device stores the terminal's context and can perform measurement management of the terminal's mobility, instructing the terminal to measure reference signals, thereby improving measurement accuracy and efficiency. Terminals authorized to perform sensing operations can support sensing services, and the access network device can send measurement commands to these terminals to instruct them to perform measurement reporting.

[0267] Optionally, in some embodiments, step S2102 above includes:

[0268] The access network equipment sends paging information to the first coverage area;

[0269] Access network equipment receives paging response information sent by candidate terminals.

[0270] In some embodiments, the paging message includes first condition information. This first condition information indicates paging conditions. Terminals within a first coverage area determine whether the corresponding first condition is met, and if the first condition is met, they send a paging response to the access network device. The first coverage area is the coverage area where the access network device can provide services. Terminals located within this first coverage area can connect to the access network device, which then provides internet and other communication services to the terminals within the first coverage area.

[0271] For example, in this embodiment, the access network device can page or broadcast terminals within a first coverage area, where the first coverage area is the maximum coverage area where the access network device can provide communication services. The access network device can determine the device type of the candidate sensing transceiver pair currently requested by the first network element based on the second information sent by the first network element, and page candidate terminals that meet that device type from the designated coverage area. The access network device can also generate first condition information based on the filtering conditions of the candidate sensing transceiver pairs, and filter terminals within the designated coverage area based on the first condition information.

[0272] It should be noted that after receiving a paging message, a terminal within the designated coverage area can determine whether it meets the corresponding first condition based on the first condition information in the paging message, and generate paging response information according to the determination result. This paging response information is then sent to the access network device. The access network device determines the terminal that meets the corresponding first condition as a candidate terminal based on the paging response information. Optionally, after receiving a paging message, a terminal within the designated coverage area determines whether it meets the corresponding first condition. If the terminal meets the first condition, it sends a paging response message back to the access network device; if the terminal does not meet the first condition, it does not respond to the paging message. The access network device can then use the terminal that sends the paging response message as a candidate terminal.

[0273] Optionally, in some embodiments, the first condition information includes at least one of the following:

[0274] Transmit beam identifier;

[0275] SINR threshold;

[0276] Path loss threshold.

[0277] For example, the first condition information is used to indicate a first condition, which is a paging response condition. Terminals within the first coverage area determine whether they currently meet the paging condition based on this paging response condition. In this embodiment, if the terminal meets the corresponding first condition, it sends paging response information back to the access network device; if the terminal does not meet the first condition, it does not send any feedback action regarding the paging information.

[0278] The first condition information may include a transmit beam identifier. If the terminal determines that the transmit beam can be measured based on the transmit beam identifier, the terminal determines that the corresponding first condition is met and sends a paging response to the access network device.

[0279] The first condition information may include the SINR threshold of the reference signal. If the terminal is greater than the SINR threshold, it is determined that the corresponding first condition is met, and a paging response is sent back to the access network equipment.

[0280] The first condition information may include a path loss threshold. The terminal measures the path loss of the reference signal. If the current path loss of the terminal is less than the path loss threshold, the terminal determines that the corresponding first condition is met and sends a paging response back to the access network equipment.

[0281] In some embodiments, the paging information may further include sensing indication information, indicating that the purpose of paging is to provide sensing services. If the terminal determines that it does not support sensing services, it will not respond to the paging information sent by the access network device.

[0282] In some embodiments, the terminal within the defined coverage area may be an inactive terminal and / or an idle terminal. When the terminal determines that the corresponding first condition is met based on the first condition information, it sends a paging response information back to the access network device. The paging response information may be used to initiate a connection establishment process with the access network device, or the paging response information may be used to initiate a connection restoration process with the access network device.

[0283] Optionally, in some embodiments, the access network device may directly determine the candidate sensing transceiver pair without relying on the measurement results reported by the candidate terminals. In this case, step S2102 is omitted.

[0284] In step S2103, terminal 103 measures the reference signal according to the seventh information, generates a measurement result, and sends the measurement result to access network device 102.

[0285] In some embodiments, the access network device receives measurement results.

[0286] It should be noted that in this embodiment, the terminal is a candidate terminal in the above embodiments, and the terminal satisfies the first condition corresponding to the first condition information.

[0287] For example, the terminal measures the reference signal based on the seventh information sent by the access network device, generates the measurement result of the reference signal, and feeds back the measurement result of the reference signal to the access network device.

[0288] Optionally, in some embodiments, the measurement results include at least one of the following:

[0289] Transmit beam identifier;

[0290] Information on the mode of propagation, including LOS or NLOS;

[0291] Path loss information;

[0292] SINR.

[0293] For example, the terminal performs measurement and measurement reporting. The reported measurement results include: the transmitted beam identifier; the propagation mode information of the reference signal, which is LOS or NLOS; if the propagation path of the measured reference signal is a LOS path, the terminal needs to report the path loss information of the LOS path; and the SINR of the reference signal.

[0294] In step S2104, the access network device 102 generates first information based on the measurement results and sends the first information to the first network element 101.

[0295] In some embodiments, the first network element receives the first information.

[0296] In some embodiments, the first information includes sensing assistance information for candidate sensing transceiver pairs.

[0297] For example, the access network device identifies one or more candidate transceiver pairs based on the measurement results reported by the terminal. It then identifies the sensing auxiliary information of these candidate transceiver pairs to generate first information.

[0298] In some embodiments, the name of the first information is not limited, and it may be, for example, "sensing auxiliary information of candidate sensing transceiver pair", "candidate sensing transceiver pair information", "sensing request feedback information", etc.

[0299] Optionally, in some embodiments, the perceived assistance information may include at least one of the following:

[0300] Identifier of candidate sensing receiver;

[0301] Identifier of the candidate sensing transmitter;

[0302] The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair.

[0303] The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair;

[0304] The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair;

[0305] The sixth piece of information is used to indicate the Quality of Service (QoS) of the candidate sensing transceiver pair.

[0306] For example, perceptual aids may include at least one of the following:

[0307] The identifier of the candidate sensing transmitter, such as base station identifier + TRP ID, for example, the first network element can determine the location information of the candidate sensing transmitter based on the base station identifier and TRP ID;

[0308] The identifier of the candidate sensing receiver, such as a terminal identifier, RAN (Radio Access Network) terminal identifier, or SUPI (Subscription Permanent Identifier). The first network element can request the location information of the candidate sensing receiver from the AMF network element based on the identifier of the candidate sensing receiver;

[0309] The third piece of information indicates the maximum sensing area of ​​the candidate sensing transceiver pair. The first network element can determine whether the candidate sensing transceiver pair meets the service requirements of the current sensing service based on the maximum sensing area.

[0310] In some embodiments, the maximum sensing area can be determined by the direct path distance between candidate sensing transceiver pairs and the guard time of the reference signal. For example, in a dual-station sensing mode, the maximum sensing area can be the maximum value of the minor axis of the sensing ellipse, determined by the straight-line distance L between the candidate sensing transceiver pairs and the guard time t of the sensing signal. G For example, the maximum sensing area of ​​a candidate sensing transceiver pair can be determined using the following formula:

[0311] Among them, A max For the maximum sensing area, t G The guard time for the sensing signal is L, the straight-line distance between the sensing transceiver pair is L, and the speed of light is c.

[0312] In some embodiments, the third information includes the minor axis value of the sensing elliptical region. Optionally, the third information may also include the linear distance L between the candidate sensing transceiver pairs and the guard time t of the sensing signal. G The first network element can calculate the maximum sensing area of ​​the sensing transceiver pair based on the above formula.

[0313] The fourth piece of information indicates the blind zone distance of the candidate sensing transceiver pair. For example, the blind zone distance refers to the area within the sensing range of the sensing transceiver where, due to certain limitations, the sensing transceiver cannot effectively detect the target object; this area is typically located within the short range of the sensing transceiver.

[0314] In some embodiments, the sensing blind zone distance is determined by the direct distance L between candidate sensing transceiver pairs and the sensing signal bandwidth (e.g., subcarrier spacing Δf and number of carriers K).

[0315] In some embodiments, the sensing blind zone in dual-station sensing mode is the area near the direct path of the candidate sensing transceiver pair. If the sensing target is located within this sensing blind zone, considering the time resolution, the sensing receiver has difficulty distinguishing between the direct path and the path reflected by the sensing target, making it difficult for the sensing receiver to identify the location of the sensing target. Therefore, this area can be defined as the sensing blind zone.

[0316] In some embodiments, the fourth information may include the minimum value of the minor axis of the perceived elliptical region. For example, this minimum value of the minor axis can be determined using the following formula:

[0317] Among them, A min Let L be the minimum value of the minor axis, and L be the direct distance between candidate sensing transceiver pairs. Δr can be calculated using the following formula:

[0318] Where Δf is the subcarrier spacing and K is the number of carriers.

[0319] In some embodiments, the fourth information may include the direct distance L between candidate sensing transceiver pairs, the subcarrier spacing Δf, and the number of carriers K. The first network element can calculate and determine the sensing blind zone distance based on the above formula.

[0320] Figure 2B is a schematic diagram of the sensing area according to an embodiment of the present disclosure. As shown in Figure 2B, the sensing area differs for different direct distances L under the same SNR (Signal to Noise Ratio). When the SNR is -26.1dB, the shorter the direct distance L, the larger the corresponding sensing area. For example, as shown in Figure 2B, the sensing area is located near the direct path between the sensing transmitter and the sensing receiver, that is, near the line connecting the left and right vertices in Figure 2B. The gray-white area in the figure represents the sensing area, and the gray-black area represents the non-sensing area. When the direct distance L = 60m, the coverage area of ​​the sensing area is greater than the coverage area when the direct distance L = 80m.

[0321] The fifth piece of information indicates the sensing direction of the candidate sensing receiver relative to the candidate sensing transmitter. Optionally, the sensing direction can also be the sensing direction of the candidate sensing transmitter relative to the corresponding candidate sensing receiver.

[0322] In some embodiments, the sensing direction can be beam information, such as a beam ID. The first network element can determine the supported sensing directions for the candidate sensing transceiver based on the beam ID.

[0323] Figure 2C is a schematic diagram illustrating a sensing direction according to an embodiment of the present disclosure. As shown in Figure 2C, when the candidate sensing transmitter is a base station TRP and the candidate sensing receiver is a UE, there may be multiple UEs in different locations and directions that can serve as candidate sensing receivers under the coverage of a TRP. Since the base station cannot know the location of the terminals, it can determine the direction of the candidate sensing transmitters and receivers by reporting beam information with relatively strong signals, so that the first network element can select a suitable first sensing transmitter and receiver pair for sensing.

[0324] The sixth piece of information is used to indicate the supported sensing QoS for the candidate sensing transceiver. For example, the sixth piece of information may include sensing accuracy information and sensing latency information. The first network element can determine the supported sensing QoS for the candidate sensing transceiver based on the sixth piece of information.

[0325] In some embodiments, the sixth information may include at least one of the following:

[0326] Antenna configuration of candidate sensing transmitters;

[0327] Antenna configuration of candidate sensing receivers;

[0328] Configuration information for the sensing signal, including the operating frequency and bandwidth of the sensing signal;

[0329] The signal quality measured by the candidate sensing receiver at the candidate sensing transmitter, for example, the SINR of the sensing reference signal.

[0330] In some embodiments, the sixth information includes a perception accuracy value, which may be a perception accuracy percentage or a perception accuracy index, the perception accuracy index being used to indicate the perception accuracy range in which the perception accuracy value lies.

[0331] In step S2105, the first network element determines the first sensing transceiver pair based on the first information.

[0332] In some embodiments, the first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a second sensing transmitter for performing sensing tasks.

[0333] For example, the first network element selects a target candidate sensing transceiver pair that meets the current sensing service requirements from one or more reported candidate sensing transceiver pairs based on the first information, and uses it as the first sensing transceiver pair.

[0334] 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.

[0335] In some embodiments, the terms "codebook," "codeword," and "precoding matrix" can be used interchangeably. For example, a codebook can be a collection of one or more codewords / precoding matrices.

[0336] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0337] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0338] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0339] In some embodiments, the terms “radio”, “wireless”, “radio access network (RAN)”, “access network (AN)”, and “RAN-based” can be used interchangeably.

[0340] In some embodiments, the terms "search space", "search space set", "search space configuration", "search space set configuration", "control resource set (CORESET)", and "CORESET configuration" can be used interchangeably.

[0341] In some embodiments, the terms "synchronization signal (SS)," "synchronization signal block (SSB)," "reference signal (RS)," "pilot," and "pilot signal" can be used interchangeably.

[0342] In some embodiments, terms such as “moment,” “point in time,” “time,” and “time location” can be used interchangeably, as can terms such as “duration,” “segment,” “time window,” “window,” and “time.”

[0343] In some embodiments, the terms "component carrier (CC)," "cell," "frequency carrier," and "carrier frequency" can be used interchangeably.

[0344] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “PRB pair”, “RB pair”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.

[0345] In some embodiments, terms such as wireless access scheme and waveform can be used interchangeably.

[0346] In some embodiments, the terms "precoding", "precoder", "weight", "precoding weight", "quasi-co-location (QCL)", "transmission configuration indication (TCI) status", "spatial relation", "spatial domain filter", "transmission power", "phase rotation", "antenna port", "antenna port group", "layer", "the number of layers", "rank", "resource", "resource set", "resource group", "beam", "beam width", "beam angular degree", "antenna", "antenna element", and "panel" can be used interchangeably.

[0347] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0348] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0349] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transmit,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.

[0350] In some embodiments, terms such as "certain," "preset," "default," "set," "indicated," "a certain," "any," and "first" can be used interchangeably. "Certain A," "preset A," "default A," "set A," "indicated A," "a certain A," "any A," and "first A" can be interpreted as A pre-defined in a protocol or the like, or as A obtained through setting, configuration, or instruction, or as specific A, a certain A, any A, or first A, but are not limited thereto.

[0351] In some embodiments, the determination or judgment can be made by a value represented by 1 bit (0 or 1), or by a true or false value (boolean), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value), but is not limited thereto.

[0352] In some embodiments, "not expecting to receive" can be interpreted as not receiving on time domain resources and / or frequency domain resources, or as not performing subsequent processing on the data and / or instructions received; "not expecting to send" can be interpreted as not sending, or as sending but not expecting the receiver to respond to the sent content.

[0353] In some embodiments, if an arrow in the interaction diagram representing the sending of information, signaling, etc. from one subject to another passes through other subjects, it can be interpreted as the information being forwarded from one subject to another via other subjects, or it can be interpreted as the information being sent from one subject to another without passing through other subjects.

[0354] The communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2105. For example, step S2103 may be implemented as an independent embodiment, step S2104 may be implemented as an independent embodiment, step S2105 may be implemented as an independent embodiment, step S2101 + step S2102 + step S2103 may be implemented as an independent embodiment, and step S2104 + step S2105 may be implemented as an independent embodiment, but is not limited thereto.

[0355] In some embodiments, steps S2101, S2103, and S2104 may be performed in an alternate order or simultaneously, and steps S2101, S2102, and S2103 may be performed in an alternate order or simultaneously.

[0356] In some embodiments, steps S2101, S2102, and S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0357] In some embodiments, steps S2101, S2102, S2103, and S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0358] In some embodiments, steps S2101, S2102, S2103, and S2105 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0359] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0360] Figure 2D is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2D, the present disclosure provides an embodiment of a communication method, which includes:

[0361] Step S2201: Access network device 102 sends first information to first network element 101.

[0362] The optional implementation of step S2201 can be found in the optional implementation of step S2104 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0363] In step S2202, the first network element 101 determines the first sensing transceiver pair based on the first information.

[0364] The optional implementation of step S2202 can be found in the optional implementation of step S2105 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0365] The communication method involved in the embodiments of this disclosure may include at least one of steps S2201 to S2202. For example, step S2201 may be implemented as a separate embodiment, and step S2202 may be implemented as a separate embodiment, but are not limited thereto.

[0366] In some embodiments, steps S2201 and S2202 may be performed in an alternate order or simultaneously.

[0367] In some embodiments, step S2201 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0368] In some embodiments, step S2202 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0369] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0370] Figure 2E is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2E, the present disclosure designes a communication method, which includes:

[0371] In step S2301, the access network device 102 determines the candidate terminal 103 and sends the seventh information to the candidate terminal 103.

[0372] The optional implementation of step S2301 can be found in the optional implementation of step S2102 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0373] In step S2302, terminal 103 measures the reference signal according to the seventh information, generates a measurement result, and sends the measurement result to access network device 102.

[0374] The optional implementation of step S2302 can be found in the optional implementation of step S2103 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0375] In step S2303, the access network device 102 generates first information based on the measurement results and sends the first information to the first network element 101.

[0376] The optional implementation of step S2303 can be found in the optional implementation of step S2104 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0377] The communication method involved in the embodiments of this disclosure may include at least one of steps S2301 to S2303. For example, step S2303 may be implemented as a standalone embodiment, and step S2301 + step S2302 may be implemented as a standalone embodiment, but is not limited thereto.

[0378] In some embodiments, steps S2301 and S2303 may be performed in an alternate order or simultaneously.

[0379] In some embodiments, steps S2301 and S2302 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0380] In some embodiments, step S2303 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0381] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0382] Figure 2F is an interactive schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 2F, the embodiments of the present disclosure relate to a communication method, which includes:

[0383] In step S2401, the first network element 101 sends the second information to the access network device 102.

[0384] The optional implementation of step S2401 can be found in the optional implementation of step S2101 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0385] In step S2402, the access network device 102 generates first information based on the measurement results and sends the first information to the first network element 101.

[0386] The optional implementation of step S2402 can be found in the optional implementation of step S2104 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0387] In step S2403, the first network element determines the first sensing transceiver pair based on the first information.

[0388] The optional implementation of step S2403 can be found in the optional implementation of step S2105 in Figure 2A, and other related parts in the embodiments involved in Figure 2A, which will not be repeated here.

[0389] The communication method involved in the embodiments of this disclosure may include at least one of steps S2401 to S2403. For example, step S2401 may be implemented as a standalone embodiment, and steps S2402 and S2403 may be implemented as standalone embodiments, but are not limited thereto.

[0390] In some embodiments, steps S2401 and S2402 may be performed in an alternate order or simultaneously.

[0391] In some embodiments, step S2401 is optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0392] In some embodiments, steps S2401 and S2402 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0393] In some embodiments, steps S2401 and S2403 are optional, and one or more of these steps may be omitted or substituted in different embodiments.

[0394] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0395] Figure 3A is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3A, the present disclosure relates to a communication method, which includes:

[0396] In step S3101, the SF network element selects a suitable Tx-Rx part (sensing transceiver pair) from one or more candidate bistatic Tx-Rx pairs (dual-site sensing transceiver pairs) to perform the sensing task.

[0397] In some embodiments, the bistatic Tx-Rx pair can be:

[0398] Tx-Rx pair 1, TRP ID 1, UE ID 1;

[0399] Tx-Rx pair 2, TRP ID 1, UE ID 2;

[0400] Tx-Rx pair 3, TRP ID 2, UE ID 3.

[0401] Each Tx-Rx pair corresponds to different sensing assistance information, which is used to determine the supported sensing area and / or sensing QoS.

[0402] In some embodiments, the perceptual assistance information for each candidate Tx-Rx pair includes at least one of the following:

[0403] Tx identifier, such as base station identifier + TRP ID (SF network elements can determine the Tx location based on the base station identifier and TRP ID).

[0404] Rx identifiers, such as UE identifiers, RAN UE ID, or SUPI (SF network elements can query the UE's location information through AMF based on the UE).

[0405] Information used to indicate the maximum sensing area;

[0406] Information used to indicate the distance to the perception blind spot;

[0407] Information used to indicate the direction of perception;

[0408] Information used to indicate the QoS awareness that can be supported.

[0409] In some embodiments, the SF network element receives information about one or more candidate Tx-Rx pairs from the base station.

[0410] In some embodiments, the base station sends one or more Tx-Rx pair messages to the SF based on the request information sent by the SF network element.

[0411] In some embodiments, the base station determines information about one or more Tx-Rx pairs, including:

[0412] The base station configures one or more candidate UEs to perform measurements;

[0413] The base station determines the Tx-Rx pair based on the measurement results reported by the candidate UE.

[0414] In some embodiments, the measurement result includes at least one of the following:

[0415] Tx beam ID (transmit beam ID);

[0416] LOS / NLOS;

[0417] Path loss information;

[0418] SINR.

[0419] In some embodiments, the base station may select a candidate UE based on at least one of the following information:

[0420] UE in RRC connected state (in order to configure UE for measurement);

[0421] Select candidate UEs from one or more recommended UEs suggested by SF network elements;

[0422] UEs that are aware of or authorized.

[0423] In some embodiments, the base station may broadcast or page inactive UEs or idle UEs within the coverage area, configure first condition information in the paging or system information, and inactive UEs or idle UEs that meet the conditions may respond to the paging and / or initiate a connection establishment or recovery process.

[0424] In some embodiments, the first condition information includes the measured beam ID, the corresponding SINR threshold, path loss, etc.

[0425] In some embodiments, the base station carries a sensing indication in the paging message to indicate the purpose of paging.

[0426] In some embodiments, the base station includes first condition information in the paging or system information so that the UE can determine whether to respond to the paging or initiate a connection establishment or recovery process.

[0427] Figure 3B is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3B, the present disclosure relates to a communication method, which includes:

[0428] Step S3201, the SF sends a sensing information request to the RAN, wherein the sensing information request may include at least one of the following information:

[0429] Bistatic pairing request is used to request the base station to provide a bistatic Tx-Rx pair for sensing.

[0430] The suggested TRP list information is used to indicate the candidate TRP information suggested by SF, which can be Tx or Rx in bistatic mode;

[0431] The suggested UE list information indicates the candidate UE information suggested by SF, which can be Tx or Rx in bistatic mode.

[0432] In some embodiments, the proposed UE list includes one or more UE identifiers, such as NGAP UE IDs.

[0433] In some embodiments, the proposed list of UEs may include at least one of the following:

[0434] One or more terminal identifiers;

[0435] One or more terminal identifiers belonging to the same service cell;

[0436] One or more terminal identifiers belonging to the same TRP;

[0437] One or more terminal identifiers belonging to the same access network device.

[0438] In some embodiments, the SF determines a list of recommended UEs based on the UE's location information and serving cell information.

[0439] In some embodiments, the SF can determine the proposed list of UEs and the corresponding UE identifiers through the AMF.

[0440] Step S3202: RAN determines candidate UEs.

[0441] In some embodiments, the RAN determines the candidate UE based on at least one of the following:

[0442] UE in RRC connected state (in order to configure UE for measurement);

[0443] Recommendations based on SF;

[0444] UE with sensing consent or authorization.

[0445] Step S3203, the RAN sends a measurement configuration request to the candidate UE, wherein the measurement configuration request includes at least one of the following information:

[0446] Request the UE to report whether there is a LOS path;

[0447] Request the UE to report the SINR of the signal;

[0448] Request the UE to report the pathloss of the LOS path.

[0449] In some embodiments, the measurement configuration may be beam-level measurement.

[0450] In some embodiments, the signal of the measurement configuration may be a communication signal and / or a sensing signal.

[0451] Step S3204, the UE performs measurement and measurement reporting, wherein the measurement report reported by the UE may include at least one of the following information:

[0452] beam ID;

[0453] LOS path indicator;

[0454] SINR;

[0455] The pathloss corresponding to the LOS path.

[0456] In step S3205, the base station determines one or more Tx-Rx pairs based on the measurement results of the candidate UE.

[0457] Step S3206: The base station sends sensing information feedback to SF.

[0458] The sensory information feedback includes information from one or more Tx-Rx pairs, wherein each Tx-Rx pair includes at least one of the following:

[0459] Tx identifier, such as base station identifier + TRP ID (SF can determine the Tx location based on the base station identifier and TRP ID);

[0460] Rx identifiers, such as UE identifier, RAN UE ID, or SUPI (SF can query the UE's location information through AMF based on the UE);

[0461] Information used to indicate the maximum sensing area;

[0462] Information used to indicate the distance to the perception blind spot;

[0463] Information used to indicate the direction of perception;

[0464] Information used to indicate the QoS awareness that can be supported.

[0465] In some embodiments, the maximum sensing area can be determined by the direct path distance between Tx and Rx and the protection time of the sensing signal.

[0466] In some embodiments, the sensing region of the bistatic sensor can be the maximum value of the minor axis of the sensing ellipse, which is composed of the straight-line distance L between Tx and Rx (which can also be understood as the direct path distance) and the guard time t of the sensing signal. G Confirmed. For example:

[0467] Among them, A max For the maximum sensing area, t G The guard time for the sensing signal is L, the straight-line distance between the sensing transceiver pair is L, and the speed of light is c.

[0468] In some embodiments, the information used to indicate the maximum sensing area may be the minor axis value of the sensing elliptical region (the maximum sensing area is calculated by providing Tx-Rx pair information); in other embodiments, the information used to indicate the maximum sensing area may be the Tx-Rx straight-line distance and the guard time of the sensing signal (SF is used to calculate the maximum sensing area).

[0469] In some embodiments, the sensing blind zone distance is determined by the direct path distance L between Tx and Rx and the sensing signal bandwidth (subcarrier spacing Δf and number of carriers K).

[0470] In some embodiments, the perception blind zone of bistatic is the region near the Rx-Tx direct path. If the target is in this region, considering the time resolution, it is difficult for the receiver to distinguish between the direct path and the path reflected through the target. Therefore, this region can be defined as the perception blind zone.

[0471] In some embodiments, the information used to indicate the distance to the sensing blind zone is the minimum value of the minor axis of the sensing ellipse, for example:

[0472] Among them, A min Let L be the minimum value of the minor axis, and L be the direct distance between candidate sensing transceiver pairs. Δr can be calculated using the following formula:

[0473] Where Δf is the subcarrier spacing and K is the number of carriers.

[0474] In some embodiments, the information used to indicate the distance of the sensing blind zone includes the Tx-Rx direct path distance, the subcarrier spacing of the sensing signal, and the number of carriers. The SF can determine the sensing blind zone based on the information.

[0475] In some embodiments, the information used to indicate the direction of perception is the direction information of Rx relative to Tx.

[0476] In some embodiments, the direction information may be beam information, such as beam ID, and SF can determine the supported sensing directions based on the information.

[0477] For example, when Tx is the base station TRP and Rx is the UE, there may be multiple UEs in different locations and directions that can be candidate Rxs under the coverage of one TRP. Since the base station cannot know the location of the terminal, it can determine the direction of Rx by reporting the beam information of the stronger signal, so that the SF can select a suitable Tx-Rx pair for sensing.

[0478] In some embodiments, the information used to indicate the supported perceived QoS (e.g., perceived accuracy) includes at least one of the following, and the SF can determine the supported accuracy based on the following information:

[0479] Tx antenna configuration;

[0480] Rx antenna configuration;

[0481] Configuration of the sensing signal, operating frequency and bandwidth;

[0482] The signal quality (e.g., SINR) of Tx measured by Rx.

[0483] In some embodiments, information used to indicate the supported perceived accuracy includes an accuracy value, such as a percentage or an index.

[0484] In step S3207, SF determines the Tx and Rx participating in the sensing task based on the Tx-Rx pair received from RAN and the sensing service requirements.

[0485] The above method provides a way to determine the pairing of sensing transceivers through signal measurement, which helps SF select sensing transceivers in bistatic mode to improve the sensing effect.

[0486] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed that includes units or modules for implementing the steps performed by the terminal in any of the above methods. Furthermore, another apparatus is proposed 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.

[0487] 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 configuration files, 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.

[0488] 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. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0489] Figure 4 is a schematic diagram of the structure of a first network element according to an embodiment of the present disclosure. The first network element 4100 is used to perform any of the above methods. In some embodiments, as shown in Figure 4, the first network element 4100 may include a transceiver module 4101 and a processing module 4102. In some embodiments, the transceiver module 4101 is used to receive first information sent by an access network device, the first information including sensing auxiliary information of a candidate sensing transceiver pair, and the processing module 4102 is used to determine a first sensing transceiver pair according to the first information, the first sensing transceiver pair including a first sensing receiver for performing a sensing task and a first sensing transmitter for performing a sensing task. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the first network element 101 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 performed by the first network element 101 in any of the above methods, which will not be described in detail here.

[0490] 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.

[0491] 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.

[0492] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0493] Figure 5 is a schematic diagram of the structure of an access network device according to an embodiment of the present disclosure. The access network device 5100 is used to perform any of the above methods. In some embodiments, as shown in Figure 5, the access network device 5100 may include a transceiver module 5101. In some embodiments, the transceiver module 5101 is used to send first information to a first network element. The first information includes sensing auxiliary information of a candidate sensing transceiver pair. The first network element is used to implement sensing functions. The first information is used by the first network element to determine a first sensing transceiver pair. The first sensing transceiver pair includes a first sensing receiver for performing a sensing task and a first sensing transmitter for performing a sensing task. Optionally, the transceiver module is used to perform at least one of the communication steps such as sending and / or receiving performed by the access network device 102 in any of the above methods, which will not be elaborated further here.

[0494] 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.

[0495] Figure 6 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. The terminal 6100 is used to execute any of the above methods. In some embodiments, as shown in Figure 6, the terminal 6100 may include: a transceiver module 6101, a processing module 6102, and a transceiver module 6103. In some embodiments, the transceiver module 6101 is used to receive seventh information sent by the access network device; the processing module 6102 is used to measure a reference signal based on the seventh information and generate a measurement result; and the transceiver module 6103 is used to send the measurement result to the access network device. The measurement result is used by the access network device to generate first information, which includes sensing auxiliary information for candidate sensing transceiver pairs. Optionally, the transceiver module is used to execute at least one of the communication steps such as sending and / or receiving performed by the terminal 103 in any of the above methods, which will not be elaborated here. Optionally, the processing module is used to execute at least one of the other steps performed by the terminal 103 in any of the above methods, which will not be elaborated here.

[0496] 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.

[0497] 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.

[0498] In some embodiments, the processing module can be replaced by the processor, and the transceiver module can be replaced by the transceiver.

[0499] Figure 7 is a schematic diagram of the structure of a communication device 7100 according to an embodiment of the present disclosure. The communication device 7100 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 7100 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.

[0500] As shown in Figure 7, the communication device 7100 includes one or more third processors 7101. The third processor 7101 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. Optionally, the communication device 7100 can be used to execute any of the above methods. Optionally, one or more third processors 7101 can be used to invoke instructions to cause the communication device 7100 to execute any of the above methods.

[0501] In some embodiments, the communication device 7100 further includes one or more third transceivers 7102. When the communication device 7100 includes one or more third transceivers 7102, the third transceiver 7102 performs at least one of the communication steps such as sending and / or receiving in the above method, and the third processor 7101 performs at least one of the other steps. In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, sending unit, transmitter, sending circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0502] In some embodiments, the communication device 7100 further includes one or more third memories 7103 for storing data. Optionally, all or part of the third memories 7103 may be located outside the communication device 7100. In optional embodiments, the communication device 7100 may include one or more first interface circuits 7104. Optionally, the first interface circuit 7104 is connected to the third memory 7103, and the first interface circuit 7104 can be used to receive data from the third memory 7103 or other devices, and can be used to send data to the third processor 7101 or other devices. For example, the first interface circuit 7104 can read data stored in the third memory 7103 and send the data to the third processor 7101.

[0503] The communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7. 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.

[0504] Figure 8 is a schematic diagram of the structure of chip 7200 according to an embodiment of the present disclosure. For cases where the communication device 7100 can be a chip or a chip system, the schematic diagram of chip 7200 shown in Figure 8 can be referenced, but is not limited thereto.

[0505] Chip 7200 includes one or more fourth processors 7201. Chip 7200 is used to perform any of the above methods.

[0506] In some embodiments, chip 7200 further includes one or more second interface circuits 7202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 7200 further includes one or more fourth memories 7203 for storing data. Optionally, all or part of the fourth memories 7203 may be located outside chip 7200. Optionally, the second interface circuit 7202 is connected to the fourth memories 7203, and the second interface circuit 7202 can be used to receive data from the fourth memories 7203 or other devices, and the second interface circuit 7202 can be used to send data to the fourth memories 7203 or other devices. For example, the second interface circuit 7202 can read data stored in the fourth memories 7203 and send the data to the fourth processor 7201.

[0507] In some embodiments, the second interface circuit 7202 performs at least one of the communication steps such as sending and / or receiving in the above-described method. For example, the second interface circuit 7202 performing the communication steps such as sending and / or receiving in the above-described method means that the second interface circuit 7202 performs data interaction between the fourth processor 7201, the chip 7200, the fourth memory 7203, or the transceiver device. In some embodiments, the fourth processor 7201 performs at least one of the other steps.

[0508] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0509] This disclosure also proposes a storage medium storing instructions that, when executed on the communication device 7100, cause the communication device 7100 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.

[0510] This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0511] 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 communication method characterized by comprising: The method is executed by a first network element, which is used to implement the sensing function. The first network element includes: Receive first information sent by the access network device, the first information including sensing auxiliary information of the candidate sensing transceiver pair; Based on the first information, a first sensing transceiver pair is determined, which includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

2. The method of claim 1, wherein, The method further includes: Send a second message to the access network device, the second message being used to request the sensing information of the candidate sensing transceiver pair.

3. The method of claim 2, wherein, The second information includes at least one of the following: A first pairing request, wherein the first pairing request is used to request a sense transceiver pair from the access network device; A list of Transceiver Points (TRPs) is sent, wherein the TRP list includes one or more recommended sensing transceiver pairs. A terminal list, which includes one or more recommended sensing terminals.

4. The method of claim 3, wherein, The list of terminals includes at least one of the following: One or more terminal identifiers; One or more terminal identifiers belonging to the same service cell; One or more terminal identifiers belonging to the same TRP coverage area; One or more terminal identifiers belonging to the same access network device.

5. The method according to any one of claims 1-4, characterized in that, The perception assistance information includes at least one of the following: Identifier of candidate sensing receiver; Identifier of the candidate sensing transmitter; The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair; The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair; The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair; The sixth information is used to indicate the Quality of Service (QoS) of the candidate sensing transceiver pair.

6. A communication method characterized by comprising: Performed by an access network device, the method includes: Send first information to a first network element. The first information includes sensing auxiliary information of a candidate sensing transceiver pair. The first network element is used to implement sensing functions. The first information is used by the first network element to determine a first sensing transceiver pair. The first sensing transceiver pair includes a first sensing receiver for performing sensing tasks and a first sensing transmitter for performing sensing tasks.

7. The method of claim 6, wherein, The method further includes: The system receives second information sent by the first network element, the second information being used to request sensing information from the candidate sensing transceiver pair.

8. The method of claim 7, wherein, The second information includes at least one of the following: A first pairing request, wherein the first pairing request is used to request a sense transceiver pair from the access network device; A list of recommended perceptive transceivers (TRPs) is provided, which includes one or more recommended perceptive transceiver pairs. A terminal list, which includes one or more recommended sensing terminals.

9. The method of claim 8, wherein, The list of terminals includes at least one of the following: One or more terminal identifiers; One or more terminal identifiers belonging to the same service cell; One or more terminal identifiers belonging to the same TRP; One or more terminal identifiers belonging to the same access network device.

10. The method according to any one of claims 6-9, characterized in that, The perception assistance information includes at least one of the following: The identifier of the candidate sensing receiver; The identifier of the candidate sensing transmitter; The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair; The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair; The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair; The sixth information is used to indicate the QoS of the candidate sensing transceiver pair.

11. The method according to any one of claims 6-10, characterized in that, The method further includes: A seventh message is sent to the candidate terminal, the seventh message being used to instruct the candidate terminal to perform a reference signal measurement; Receive the measurement results sent by the candidate terminal; The first information is generated based on the measurement results.

12. The method of claim 11, wherein, The measurement results include at least one of the following: Transmit beam identifier; Propagation mode information, which includes line-of-sight (LOS) propagation or non-line-of-sight (NLOS) propagation; Path loss information; Signal-to-interference-plus-noise ratio (SINR) 13. The method according to claim 11 or 12, characterized in that, The candidate terminal includes at least one of the following: Terminals in the Radio Resource Control (RRC) connected state; Terminals authorized to perform sensing operations.

14. The method according to any one of claims 11-13, characterized in that, The method includes: Receive second information sent by the first network element, the second information including one or more recommended sensing terminals; Based on the second information, the candidate terminal is determined.

15. The method according to any one of claims 11-13, characterized in that, The method further includes: Send paging information to the first coverage area, the paging information including first condition information; Receive paging response information sent by the candidate terminal, and establish or restore connection with the candidate terminal.

16. The method of claim 15, wherein, The first condition information includes at least one of the following: Transmit beam identifier; SINR threshold; Path loss threshold.

17. A method of communication, comprising: The method, executed by a terminal, includes: Receive the seventh message sent by the access network device; The reference signal is measured based on the seventh information, and a measurement result is generated; The measurement results are sent to the access network device, and the measurement results are used by the access network device to generate first information, the first information including sensing auxiliary information of candidate sensing transceiver pairs.

18. The method of claim 17, wherein, The method further includes: Receive paging information sent by the access network device, the paging information including first condition information; Based on the first condition information, it is determined that the paging condition is met, and a paging response information is sent to the access network device. The paging response information is used to establish or restore a connection with the access network device.

19. The method of claim 18, wherein, The first condition information includes at least one of the following: Transmit beam identifier; SINR threshold; Path loss threshold.

20. The method of any one of claims 17-19, wherein, The measurement results include at least one of the following: Transmit beam identifier; Propagation mode information, which includes line-of-sight (LOS) propagation or non-line-of-sight (NLOS) propagation; Path loss information; Signal-to-interference-plus-noise ratio (SINR) 21. The method according to any one of claims 17-20, characterized by, The perception assistance information includes at least one of the following: Identifier of candidate sensing receiver; Identifier of the candidate sensing transmitter; The third information is used to indicate the maximum sensing area of ​​the candidate sensing transceiver pair; The fourth information is used to indicate the sensing blind zone distance of the candidate sensing transceiver pair; The fifth piece of information is used to indicate the sensing direction of the candidate sensing transceiver pair; The sixth information is used to indicate the Quality of Service (QoS) of the candidate sensing transceiver pair.

22. A communications device, characterized by The communication device is used to perform the communication method according to any one of claims 1-5, or the communication device is used to perform the communication method according to any one of claims 6-16, or the communication device is used to perform the communication method according to any one of claims 17-21.

23. A communication system, characterized by The device includes a first network element, an access network device, and a terminal, wherein the first network element is configured to implement the communication method of any one of claims 1-5, the access network device is configured to implement the communication method of any one of claims 6-16, and the terminal is configured to implement the communication method of any one of claims 17-21.

24. A storage medium, the storage medium storing instructions, wherein, When the instruction is executed on the communication device, it causes the communication device to perform the communication method as described in any one of claims 1-5, or causes the communication device to perform the communication method as described in any one of claims 6-16, or causes the communication device to perform the communication method as described in any one of claims 17-21.

25. A program product comprising at least one of a program, instructions, characterized in that When at least one of the program or instructions is executed by the communication device, it implements the steps of the communication method according to any one of claims 1-5; or when at least one of the program or instructions is executed by the communication device, it implements the steps of the communication method according to any one of claims 6-16; or when at least one of the program or instructions is executed by the communication device, it implements the steps of the communication method according to any one of claims 17-21.

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