Sensing method, sensing device, sensing system, storage medium, and program product
Patent Information
- Application Number
- PCT/CN2025/082229
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-09-17
Smart Images

Figure CN2025082229_17092026_PF_FP_ABST
Abstract
Description
Sensing methods, sensing devices, sensing systems, storage media, and software products Technical Field
[0001] This disclosure relates to the field of communication technology, and in particular to a sensing method, sensing device, sensing system, storage medium, and program product. Background Technology
[0002] In recent years, the rapid development of wireless communication technology and the increasing demands of various vertical services have led to a growing need for communication technologies. User equipment not only needs to communicate with other devices but may also need to sense surrounding devices or the environment. Therefore, Integrated Sensing and Communications (ISAC) technology has emerged. A sensing system can integrate a traditional radar system onto an existing communication system, sensing targets in the surrounding environment by transmitting sensing signals (or sensing reference signals, reference signals used for sensing, etc.). In an integrated sensing and communications scenario, sensing signals and communication signals (or communication reference signals, signals used for communication, etc.) can share a channel. Interference and collisions may occur when sensing signals and communication signals share a channel. Summary of the Invention
[0003] To improve the performance of integrated communication and sensing systems, embodiments of this disclosure propose a sensing method, sensing device, sensing system, storage medium, and program product.
[0004] According to a first aspect of the present disclosure, a sensing method is proposed, performed by a sensing device, the method comprising: in the event of a conflict between sensing signal resources and communication signal resources, discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to priority information of the sensing signal resources.
[0005] According to a second aspect of the present disclosure, a sensing device is provided, comprising: a processing module, configured to discard at least a portion of the sensing signal resources and / or discard at least a portion of the communication signal resources according to priority information of the sensing signal resources in the event of a conflict between sensing signal resources and communication signal resources.
[0006] According to a third aspect of the present disclosure, a sensing device is provided, comprising: one or more processors; and a memory coupled to the processors, the memory storing executable instructions that, when executed by the processors, cause the sensing method described in the first aspect to be executed.
[0007] According to a fourth aspect of the present disclosure, a sensing system is proposed, including a sensing transmitter and a sensing receiver, wherein the sensing receiver is configured to implement the sensing method described in the first aspect.
[0008] According to a fifth aspect of the present disclosure, a storage medium is provided that stores instructions that, when executed on a sensing device, cause the sensing device to perform the sensing method described in the first aspect.
[0009] According to a sixth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein the at least one of the program and instructions, when executed by a sensing device, implements the sensing method described in the first aspect.
[0010] By adopting the above technical solution, at least the following beneficial technical effects can be achieved:
[0011] By selectively discarding some resources based on the priority information of the sensing signal resources when there is a conflict between sensing signal resources and communication signal resources, the impact on communication performance can be reduced while ensuring some sensing needs are met, thereby improving the overall performance of the integrated communication and sensing system. This approach not only optimizes resource allocation and reduces interference and collision problems, but also enhances the synergy between communication and sensing functions by reducing resource conflicts. Attached Figure Description
[0012] 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.
[0013] Figure 1A is an exemplary schematic diagram of the architecture of a sensing system provided according to an embodiment of the present disclosure.
[0014] Figure 1B is an exemplary schematic diagram of a sensing mode provided according to an embodiment of the present disclosure.
[0015] Figure 1C is an exemplary schematic diagram of another sensing mode provided according to an embodiment of the present disclosure.
[0016] Figure 2A is an interactive schematic diagram of a sensing method according to an embodiment of the present disclosure.
[0017] Figure 2B is a schematic diagram illustrating a resource discarding method according to an embodiment of the present disclosure.
[0018] Figure 2C is a schematic diagram illustrating a resource discarding method according to an embodiment of the present disclosure.
[0019] Figure 3 is a flowchart illustrating a sensing method according to an embodiment of the present disclosure.
[0020] Figure 4 is a flowchart illustrating a sensing method according to an embodiment of the present disclosure.
[0021] Figure 5 is a schematic diagram of the structure of a sensing device according to an embodiment of the present disclosure.
[0022] Figure 6A is a schematic diagram of the structure of a sensing device according to an embodiment of the present disclosure.
[0023] Figure 6B is a schematic diagram of the structure of a chip according to an embodiment of the present disclosure. Detailed Implementation
[0024] This disclosure provides a sensing method, sensing device, sensing system, storage medium, and program product.
[0025] In a first aspect, embodiments of this disclosure propose a sensing method executed by a sensing device, the method comprising: in the event of a conflict between sensing signal resources and communication signal resources, discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to priority information of the sensing signal resources.
[0026] In the above embodiments, by selectively discarding some resources based on the priority information of the sensing signal resources when there is a conflict between sensing signal resources and communication signal resources, the impact on communication performance can be reduced while ensuring some sensing needs are met, thereby improving the overall performance of the integrated communication and sensing system. This approach not only optimizes resource allocation and reduces interference collisions, but also enhances the synergy between communication and sensing functions by reducing resource conflicts.
[0027] In conjunction with some embodiments of the first aspect, in some embodiments, the sensing signal resource includes one or more first resource units occupied by the sensing signal in the signal domain, and the communication signal resource includes one or more second resource units occupied by the communication signal in the signal domain; the method further includes: determining a conflict between the sensing signal resource and the communication signal resource when at least one first resource unit overlaps with a second resource unit.
[0028] In the above embodiments, by clearly defining the specific occupied units of sensing signal resources and communication signal resources in the signal domain, and determining the conflict when the two resource units overlap, the resource conflict detection mechanism is further refined, thereby providing a more accurate basis for resource optimization and enhancing the performance and reliability of the integrated communication and sensing system in complex resource allocation scenarios.
[0029] In conjunction with some embodiments of the first aspect, in some embodiments, the priority information includes the priority of the sensing signal on each of the first resource units; discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources includes at least one of the following:
[0030] If the first resource unit of the first priority overlaps with the second resource unit, the second resource unit that overlaps with the first resource unit of the first priority is discarded.
[0031] If the first resource unit of the first priority overlaps with the second resource unit, all second resource units are discarded.
[0032] The first resource unit of the second priority overlaps with the second resource unit, and the first resource unit of the second priority that overlaps with the second resource unit is discarded, wherein the first priority is higher than the second priority;
[0033] If the first resource unit of the second priority overlaps with the second resource unit, all first resource units of the second priority are discarded.
[0034] In the above embodiments, by assigning a priority to each first resource unit in the sensing signal resources and flexibly handling resource conflicts according to the priority, dynamic coordination between sensing signal resources and communication signal resources is realized, thereby optimizing resource allocation and improving system performance.
[0035] In conjunction with some embodiments of the first aspect, in some embodiments, the first resource units occupied by the sensing signal in the signal domain are non-uniformly distributed, and the priority of each first resource unit is determined at least by a weight function in the differential co-array DCA domain.
[0036] In the above embodiments, by setting the first resource unit of the sensing signal resources in the signal domain to be non-uniformly distributed, and using the weight function in the DCA domain to determine the priority of each resource unit, a more flexible and efficient resource allocation strategy is achieved, thereby improving system performance.
[0037] In conjunction with some embodiments of the first aspect, in some embodiments, the number of the sensing signal resources is multiple, the multiple sensing signal resources correspond to multiple sensing signal resource groups, and one sensing signal resource group corresponds to one priority information.
[0038] In the above embodiments, by dividing multiple sensing signal resources into resource groups and assigning uniform priority information to each resource group, the complexity of resource management is simplified, and the efficiency and flexibility of the system in resource allocation and conflict handling are improved.
[0039] In conjunction with some embodiments of the first aspect, in some embodiments, the sensing signal resources within a sensing signal resource group have at least one communication feature with a similarity greater than a second threshold.
[0040] In the above embodiments, since the priority information corresponding to each resource can be inferred from the similarity of the features between resources, if each sensing signal resource in a sensing signal resource group has at least one feature with a similarity greater than a threshold, unified and accurate priority information can be assigned to the resource group, thereby simplifying the complexity of resource management and optimizing resource management.
[0041] In conjunction with some embodiments of the first aspect, in some embodiments, the communication feature includes at least one of the following:
[0042] Quasi-co-addressable QCL source signal;
[0043] Transmit beam;
[0044] Transmission power.
[0045] In the above embodiments, by using features such as quasi-co-located QCL source signals, transmit beams, and transmit power as the basis for judging the similarity of sensing signal resources, the specific dimensions of feature similarity within resource groups are further clarified, providing a more specific reference for the accurate division and management of resource priorities, and enhancing the flexibility and adaptability of resource allocation in the integrated communication and sensing system.
[0046] In conjunction with some embodiments of the first aspect, in some embodiments, the sensing signal resources include one or more groups of sensing signal resources, a group of sensing signal resources includes at least two sensing signal resources, and the priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the group of sensing signal resources;
[0047] The step of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources includes: discarding the communication signal resources when a first sensing signal resource in the sensing signal resource group conflicts with the communication signal resources and the first sensing signal resource has a priority of first priority.
[0048] In the above embodiments, when the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the first sensing signal resource has the first priority, the communication signal resource is discarded first, thereby ensuring that the high-priority sensing signal resource can work normally and improving the reliability and efficiency of the sensing system.
[0049] In conjunction with some embodiments of the first aspect, in some embodiments, the sensing signal resources include one or more groups of sensing signal resources, a group of sensing signal resources includes at least two sensing signal resources, and the priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the group of sensing signal resources;
[0050] The step of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources includes: discarding the sensing signal resource group if a first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource and the priority of the first sensing signal resource is the second priority.
[0051] In the above embodiments, when the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the priority of the first sensing signal resource is the second priority, the entire sensing signal resource group is discarded to avoid interference with the communication signal resource and optimize resource allocation and system communication performance.
[0052] In conjunction with some embodiments of the first aspect, in some embodiments, the first priority is greater than or equal to the first threshold.
[0053] In the above embodiments, by setting a first priority greater than or equal to a first threshold, it can be ensured that when there is a conflict between sensing signal resources and communication signal resources, the higher priority sensing signal resources are reserved first, thereby ensuring the execution efficiency and reliability of sensing tasks.
[0054] In conjunction with some embodiments of the first aspect, in some embodiments, the second priority is less than the first threshold.
[0055] In the above embodiments, by setting the second priority to be less than the first threshold, it can be ensured that when there is a conflict between sensing signal resources and communication signal resources, the lower priority sensing signal resource group is discarded first, so as to reduce interference with communication signal resources and improve communication reliability.
[0056] In conjunction with some embodiments of the first aspect, there is at least one identical or similar communication feature among the sensing signals corresponding to the sensing signals within a sensing signal resource group.
[0057] In the above embodiments, by specifying that the sensing signals within the sensing signal resource group have the same or similar communication characteristics, the priority division and conflict handling of sensing signal resources are more accurate, making it easier for the system to perform unified management and optimized scheduling based on communication characteristics.
[0058] In conjunction with some embodiments of the first aspect, in some embodiments, the priority information is configured by a network device, or the priority information is specified by a protocol, or the priority information is determined by the sensing device.
[0059] In the above embodiments, by allowing priority information to be determined by network device configuration, protocol specifications, or the sensing device itself, a flexible priority setting method is provided, which can dynamically adjust resource management strategies according to different scenarios and needs, thereby enhancing the adaptability and flexibility of the system.
[0060] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: within a measurement window, receiving a sensing signal based on a sensing signal after resource discard processing.
[0061] In the above embodiments, by receiving the sensing signal based on the sensing signal after resource discarding within the measurement window, it is ensured that the receiving process of the sensing signal can reflect the results of resource optimization in real time, further improving the accuracy and reliability of the sensing signal reception and optimizing the sensing performance of the system.
[0062] Secondly, embodiments of this disclosure provide a sensing device, which includes at least one of a transceiver module and a processing module; wherein the sensing device is used to execute an optional implementation of the first aspect. Optionally, the sensing device is a communication device. Optionally, the sensing device is a terminal. Optionally, the sensing device is a network device.
[0063] Thirdly, embodiments of this disclosure provide a sensing device, which includes one or more processors; wherein the sensing device is used to execute an optional implementation of the first aspect. Optionally, the sensing device is a communication device. Optionally, the sensing device is a terminal. Optionally, the sensing device is a network device.
[0064] Fourthly, embodiments of this disclosure provide a sensing system comprising a sensing transmitter and a sensing receiver; wherein the sensing receiver is configured to perform the method described in the optional implementation of the first aspect. Optionally, the sensing transmitter is configured to perform the method described in the optional implementation of the first aspect.
[0065] Fifthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a sensing device, cause the sensing device to perform the method described in the optional implementation of the first aspect.
[0066] In a sixth aspect, embodiments of this disclosure provide a program product, including at least one of a program and instructions, which, when executed by a sensing device, causes the sensing device to perform the method described in the optional implementation of the first aspect.
[0067] Seventhly, embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the method as described in the optional implementation of the first aspect.
[0068] Eighthly, embodiments of this disclosure provide a chip or chip system. The chip or chip system includes processing circuitry configured to perform the method described according to the optional implementations of the first aspect above.
[0069] It is understood that the aforementioned sensing devices, communication devices, sensing systems, storage media, program products, computer programs, chips, or chip systems are all used to execute the sensing 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.
[0070] This disclosure provides a sensing method, a sensing device, a sensing system, a storage medium, and a program product. In some embodiments, the terms sensing method, communication method, resource adjustment method, and signal collision processing method can be used interchangeably.
[0071] 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.
[0072] 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.
[0073] In this 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 or a plural expression.
[0074] In the embodiments disclosed herein, "multiple" refers to two or more.
[0075] 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”, etc., may be used interchangeably.
[0076] 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.
[0077] 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.
[0078] 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.
[0079] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0080] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.
[0081] 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.
[0082] 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”.
[0083] 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.
[0084] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).
[0085] 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.
[0086] In some embodiments, the terms "sensing device," "sensing transmitter," "sensing receiver," "sensing transceiver," "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.
[0087] 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.
[0088] 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.
[0089] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.
[0090] In some embodiments, data, information, etc., may be obtained with the user's consent.
[0091] 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.
[0092] Figure 1A is a schematic diagram of the architecture of a sensing system according to an embodiment of the present disclosure. As shown in Figure 1A, the sensing system 100 may include a sensing transmitter 101 and a sensing receiver 102. The terms "sensing system," "synthetic system," etc., are interchangeable.
[0093] In some embodiments, the sensing transmitter 101 is a communication device, such as a terminal or network device with sensing capabilities. Optionally, the number of sensing transmitters 101 can be one or more.
[0094] In some embodiments, the sensing receiver 102 is a communication device, such as a terminal or network device with sensing capabilities. Optionally, the number of sensing receivers 102 can be one or more.
[0095] In some embodiments, the sensing transmitter 101 and the sensing receiver 102 are two independent sensing devices.
[0096] In some embodiments, the sensing transmitter 101 and the sensing receiver 102 are the same sensing device.
[0097] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, 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.
[0098] In some embodiments, the network device may include at least one of an access network device and a core network device.
[0099] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.
[0100] In some embodiments, the access network device is a base station. Optionally, the base station may be, for example, a macro base station, a micro base station (also called a small station), a relay station, an access point, a 5 / 6G base station or a future base station, a satellite, a Transmitting and Receiving Point (TRP), a Transmitting Point (TP), a mobile switching center, or other equipment that performs base station functions in a communication system, etc., and this disclosure does not specifically limit this type of device. For ease of description, in all embodiments of this disclosure, the apparatus that provides wireless communication functions for terminal devices is collectively referred to as a network device or a base station.
[0101] In some embodiments, the access network device is a core network device. Optionally, the core network device can be a single device, including a first network element, a second network element, etc., or it can be multiple devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element can be virtual or physical. The core network includes, for example, at least one of the Evolved Packet Core (EPC), 5G / 6G Core Network (5G CN / 6G CN), and Next Generation Core (NGC).
[0102] 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.
[0103] 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.
[0104] It is understood that the perception system described in the embodiments of this disclosure is for the purpose of more clearly illustrating the technical solutions of the embodiments of this disclosure, and does not constitute a limitation on the technical solutions proposed in the embodiments of 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 the embodiments of this disclosure are also applicable to similar technical problems.
[0105] The following embodiments of this disclosure can be applied to the sensing system 100 shown in FIG1A, or to some of the subjects, but are not limited thereto. The subjects shown in FIG1A are illustrative. The sensing system may include all or some of the subjects in FIG1A, or may include other subjects outside of FIG1A. The number and form of each subject are arbitrary. Each subject may be physical or virtual. The connection relationship between the subjects is illustrative. The subjects may not be connected or may be connected. The connection may be in any way, such as direct connection or indirect connection, wired connection or wireless connection.
[0106] The embodiments of this disclosure can be applied to sensing systems, or the embodiments of this disclosure 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), 6th generation mobile communication system (6G), 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 Combinations of sensing systems with 802.16 (WiMAX, a registered trademark), IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN), Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, and next-generation systems based on them (i.e., synesthetic systems).
[0107] In some embodiments, the sensing system is obtained by integrating a radar system or other sensing system on the basis of an existing communication system. It senses information such as the distance, speed, and angle of targets in the surrounding environment by sending sensing signals.
[0108] In some embodiments, wireless sensing primarily employs two sensing modes: a mono-static sensing mode and a bi-static sensing mode. As shown in Figure 1B, in mono-static sensing mode, the sensing transmitter and receiver are co-located. The sensing transceiver transmits a sensing signal and measures the echo of this signal to estimate at least one of the following information about the sensing target: distance, angle, and velocity. As shown in Figure 1C, in bi-static sensing mode, the sensing transmitter and receiver are not co-located. The sensing transmitter transmits a sensing signal, and the sensing receiver estimates at least one of the following information about the sensing target: distance, angle, and velocity by measuring the echo of the sensing signal.
[0109] In some embodiments, sensing signals and communication signals may share a channel, which may lead to interference or collisions. Therefore, this disclosure provides a sensing method, sensing device, sensing system, storage medium, and program product to improve the performance of an integrated communication and sensing system.
[0110] Figure 2A is an interactive schematic diagram of a sensing method according to an embodiment of the present disclosure. As shown in Figure 2A, the embodiment of the present disclosure relates to a sensing method executed by a sensing system 100, and the method includes at least one of the following steps:
[0111] Step S2101: The sensing transmitter 101 sends a sensing signal.
[0112] In some embodiments, the sensing receiver receives sensing signals. Optionally, the sensing receiver 102 receives sensing signals transmitted by the sensing transmitter 101. Optionally, in a dual-site sensing scenario, the sensing transmitter 101 and the sensing receiver 102 are two independent sensing devices. Optionally, in a single-site sensing scenario, the sensing transmitter 101 and the sensing receiver 102 are the same sensing device.
[0113] In some embodiments, information about the surrounding environment can be obtained by transmitting and receiving sensing signals.
[0114] For example, the sensing signals can be used for environmental sensing, such as monitoring environmental parameters like temperature, humidity, and air pressure, or for topographic mapping.
[0115] For example, the sensing signal can be used for target detection, such as to detect the presence, position, velocity, and orientation of a target object.
[0116] Step S2102: Sensing transmitter 101 sends a communication signal.
[0117] In some embodiments, the sensing receiver receives communication signals.
[0118] In some embodiments, the communication signals include data payload, control signaling, or pilot / reference signals in wireless communication.
[0119] In some embodiments, sensing signals and communication signals can share a channel, for example, sensing signals and communication signals can share a channel through time division multiplexing and / or frequency division multiplexing.
[0120] In step S2103, when there is a conflict between sensing signal resources and communication signal resources, the sensing receiver 102 discards at least a portion of the sensing signal resources and / or discards at least a portion of the communication signal resources according to the priority information of the sensing signal resources.
[0121] In some embodiments, the sensing signal resource includes one or more first resource units occupied by the sensing signal in the signal domain. Optionally, the signal domain includes the time domain and / or the frequency domain.
[0122] For example, the signal domain is the time domain, and the first resource unit can be one or more Orthogonal Frequency Division Multiplexing (OFDM) symbols, time slots, milliseconds, seconds, etc.
[0123] For example, the signal domain is the frequency domain, and the first resource unit can be one or more subcarriers, Hertz, etc.
[0124] For example, the signal domain is the time-frequency domain, and the first resource unit is one or more resource elements (REs), resource blocks (RBs), etc.
[0125] In some embodiments, communication signal resources include one or more second resource units occupied by communication signals in the signal domain.
[0126] For example, the second resource unit is one or more symbols, milliseconds, subcarriers, hertz, or REs, etc.
[0127] In some embodiments, the first resource units occupied by the sensed signal in the signal domain can be uniformly distributed. That is, the sensed signal can be configured to be distributed at equal intervals in the time domain and / or frequency domain, with the distribution pattern resembling a comb. This comb-like configuration can save resource overhead.
[0128] In some embodiments, the first resource units occupied by the sensed signal in the signal domain can be non-uniformly distributed. That is, the sensed signal can be configured to be distributed non-equally at intervals in the time domain and / or frequency domain, i.e., arranged in a time-frequency sparse manner. This time-frequency sparse configuration scheme can improve sensing accuracy.
[0129] In some embodiments, when at least one first resource unit overlaps with a second resource unit, a conflict between sensing signal resources and communication signal resources can be determined.
[0130] The overlap between the first resource unit and the second resource unit refers to the fact that the first resource unit and the second resource unit are the same time domain and / or frequency domain unit. For example, if the first resource unit and the second resource unit are the same time slot, symbol, subcarrier, or RE, then the first resource unit and the second resource unit overlap.
[0131] In some embodiments, the terms “overlap”, “collision”, “conflict”, “identity” and other similar terms may be used interchangeably.
[0132] In some embodiments, the priority information of the sensing signal resources includes the priority of the sensing signal on each first resource unit. Optionally, the priority includes a first priority and a second priority. Optionally, the first priority is higher than the second priority; for example, a first priority of 1 indicates high priority, and a second priority of 0 indicates low priority. Optionally, the sensing signal with the first priority can be considered a sensing signal that must be received, and the sensing signal with the second priority can be considered a sensing signal that is not required to be received (e.g., a sensing signal that is not required to be measured in a low-precision sensing measurement task scenario).
[0133] For example, a sensing signal resource can be divided into multiple parts in the time domain and / or frequency domain. Each part is a first resource unit, and each part can correspond to a priority. Of course, multiple parts can correspond to the same priority.
[0134] In some embodiments, priority information of the sensing signal resources is configured by the network device to the sensing receiver.
[0135] In some embodiments, the priority information of sensed signal resources can be configured by the network device through higher-layer parameters. For example, the network device introduces higher-layer parameters (such as SensingRS-partX-PriorityIndex, etc.) in the Radio Resource Control (RRC) signaling of sensed signals to indicate the priority information of sensed signal resources to the sensed receiver.
[0136] In some embodiments, priority information of the sensed signal resources can be indicated to the sensed receiver by the network device through control information. For example, the network device indicates the priority information of the sensed signal resources to the sensed receiver through 1 or 2 bits of downlink control information (DCI) / uplink control information (UCI).
[0137] In some embodiments, the priority information of the sensed signal resources is defined by the protocol.
[0138] In some embodiments, the priority information of the sensing signal resources is determined by the sensing device, which includes, but is not limited to, the sensing transmitter 101 and the sensing receiver 102.
[0139] In some embodiments, the priority information of sensing signal resources can be determined based on sensing service requirements.
[0140] In some embodiments, if the first resource units occupied by the sensed signal in the signal domain are non-uniformly distributed, then the priority of each first resource unit can be determined at least by the weight function in the differential co-array DCA domain.
[0141] It should be explained that in differential arrays, the weight function is typically related to the distribution of virtual array elements. It is used to adjust the contribution of different elements to signal processing. By assigning different weights to each element, the array's degrees of freedom (DOF) and orientation estimation performance can be optimized. The priority of each first resource element can be correlated one-to-one with the weight of each element.
[0142] In some embodiments, when a sensing receiver encounters a conflict between sensing signal resources and communication signal resources, the implementation of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources based on the priority information of the sensing signal resources includes at least one of the following:
[0143] If the first resource unit of the first priority overlaps with the second resource unit, the second resource unit that overlaps with the first resource unit of the first priority shall be discarded.
[0144] If the first resource unit of the first priority overlaps with the second resource unit, all second resource units are discarded.
[0145] If the first resource unit of the second priority overlaps with the second resource unit, discard the first resource unit of the second priority that overlaps with the second resource unit;
[0146] If the first resource unit of the second priority overlaps with the second resource unit, all first resource units of the second priority are discarded.
[0147] It should be explained that discarding a resource unit refers to releasing a resource unit from an occupied, bound, or allocated state, making it available for reallocation or use. For example, discarding resource unit A refers to the process of changing resource unit A from an occupied / allocated state to an unoccupied / unallocated state.
[0148] For example, the process of discarding the first resource unit A from the sensing signal resource refers to the process of changing the first resource unit A from a state allocated to the sensing signal to a state not allocated to the sensing signal. After the first resource unit A is discarded, it is no longer used to receive the sensing signal, but can be used to transmit and receive other signals.
[0149] For example, the process of discarding the second resource unit B from the communication signal resources refers to the process of changing the second resource unit B from a state allocated to the communication signal to a state not allocated to the communication signal. After being discarded, the second resource unit B is no longer used to receive communication signals, but can be used to send and receive other signals.
[0150] In some embodiments, "discard" can be used interchangeably with terms such as "cancel", "release", "revoke", and "abandon".
[0151] For example, if a first resource unit of the first priority overlaps with a second resource unit, then the second resource unit that overlaps with the first resource unit of the first priority can be discarded.
[0152] For example, if the first resource unit of the first priority overlaps with the second resource unit, then all second resource units can be discarded to reduce communication signal overhead and ensure the accuracy of sensing services.
[0153] For example, if a first resource unit of the second priority overlaps with a second resource unit, then the first resource unit of the second priority that overlaps with the second resource unit can be discarded. In this way, although some sensing signal resources are discarded, it can still be used to achieve low-precision sensing measurement tasks.
[0154] For example, if the first resource unit of the second priority overlaps with the second resource unit, then all the first resource units of the second priority can be discarded to reduce sensing signal overhead and improve the accuracy of communication services.
[0155] The above examples can also be combined. For instance, if there is overlap between a first-priority first resource unit and a second resource unit, and also overlap between a second-priority first resource unit and a second resource unit, then the second resource unit overlapping with the first-priority first resource unit can be discarded, and so can all the second-priority first resource units. This approach can balance sensing and communication performance. For example, if there is overlap between a first-priority first resource unit and a second resource unit, and also overlap between a second-priority first resource unit and a second resource unit, then the second resource unit overlapping with the first-priority first resource unit can be discarded, and so can all the second-priority first resource units.
[0156] In some embodiments, a sensing signal resource may include one or more first resource unit groups, a first resource unit group may include one or more first resource units, and priority information of a first resource unit group indicates the priority of the first resource units within the group.
[0157] In some embodiments, a sensing signal resource includes two first resource unit groups, one of which has a first priority and the other has a second priority.
[0158] In some embodiments, if at least one first resource unit in the first priority first resource unit group overlaps with a second resource unit, and at least one first resource unit in the second priority first resource unit group also overlaps with a second resource unit, then only the second resource unit overlapping with the first priority first resource unit can be discarded, and the first resource unit overlapping with the second priority can also be discarded. This approach can balance sensing and communication performance.
[0159] Taking Figure 2B as an example, assume that a sensing signal #0 is configured within the Doppler measurement window. Its first resource unit (RLU) in the time domain is uniformly distributed, with the OFDM index {5,7,9,11}, comprising two RLU groups. The first group has OFDM indices {5,9} and is configured with a first priority, while the second group has OFDM indices {7,11} and is configured with a second priority. A communication signal #1, such as a DMRS, is also configured within this Doppler measurement window, occupying a second RLU with OFDM indices {2,5,8,11}. As shown in Figure 2B, in the time domain, the second RLU {5,11} corresponding to the communication signal #1 collides (overlaps) with the first RLU {5,11} corresponding to the sensing signal #0. Since the sensing signal #0 has a first priority in the first RLU {5} of the first group, the second RLU {5} that overlaps with the first RLU {5} is discarded. Furthermore, since the priority of the sensing signal #0 on the first resource unit {11} in the second group is the second priority, the first resource unit {11} with the second priority that overlaps with the second resource unit {11} is discarded.
[0160] In some embodiments, if at least one first resource unit in the first resource unit group of the first priority overlaps with a second resource unit, and at least one first resource unit in the first resource unit group of the second priority also overlaps with a second resource unit, then the second resource unit that overlaps with the first resource unit of the first priority can be discarded, and the first resource unit group with the second priority can be discarded.
[0161] Taking Figure 2C as an example, assume that a sensing signal #0 is configured within the configured Doppler measurement window. Its first resource unit (RLU) in the time domain is uniformly distributed, with the index of the RLU being the OFDM index {5,7,9,11}, comprising two RLU groups. The first group has the OFDM index {5,9} and is configured with a first priority, while the second group has the OFDM index {7,11} and is configured with a second priority. A communication signal #1, such as a DMRS, is also configured within this Doppler measurement window, occupying a second resource unit with the OFDM index {2,5,8,11}. As shown in Figure 2C, in the time domain, the second resource unit {5,11} corresponding to the communication signal #1 collides (overlaps) with the first resource unit {5,11} corresponding to the sensing signal #0. Since the sensing signal #0 has a first priority in the first resource unit {5} of the first group, the second resource unit {5} that overlaps with the first priority first resource unit {5} is discarded. Furthermore, since the priority of the sensing signal #0 on the first resource unit {11} in the second group is the second priority, the first resource unit group {7,11} with the second priority is discarded, that is, all the first resource units {7,11} with the second priority are discarded.
[0162] It should be noted that the above examples illustrate resource discarding at the resource unit level and do not exhaust all implementation methods. Many different embodiments can be combined depending on the resource discarding method, which will not be elaborated upon here.
[0163] In some embodiments, the number of sensing signal resources can be multiple. Optionally, multiple sensing signal resources can correspond to multiple sensing signal resource groups, a sensing signal resource group includes one or more sensing signal resources, and a sensing signal resource group can correspond to priority information.
[0164] For example, multiple sensing signal resources in a sensing signal resource set can be divided into multiple sensing signal resource groups (subsets), and each sensing signal resource group can be associated with (or correspond to) a priority information.
[0165] The following describes an example of resource discarding at the resource granularity level.
[0166] In some embodiments, the sensing signal resources include one or more groups of sensing signal resources, and a group of sensing signal resources includes at least two sensing signal resources. Priority information within a sensing signal resource group indicates the priority of the sensing signal resources within that group. Optionally, the priorities of the sensing signal resources within a sensing signal resource group may be the same or different. Optionally, a sensing signal resource group includes a first sensing signal resource and a second sensing signal resource.
[0167] In some embodiments, the implementation of the sensing receiver discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources may include: discarding the communication signal resources when a first sensing signal resource in the sensing signal resource group conflicts with a communication signal resource and the priority of the first sensing signal resource is a first priority.
[0168] The discarded communication signal resources may include resources that conflict with or do not conflict with the second sensing signal resources in the sensing signal resource group.
[0169] In this way, when the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the first sensing signal resource has the first priority, the communication signal resource is discarded first, thereby ensuring that the high-priority sensing signal resource can work normally and improving the reliability of sensing.
[0170] In some embodiments, the implementation of the sensing receiver discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources may include: discarding the sensing signal resource group when a first sensing signal resource in the sensing signal resource group conflicts with a communication signal resource and the priority of the first sensing signal resource is a second priority.
[0171] Among them, the second sensing signal resource in the discarded sensing signal resource group may or may not conflict with the communication signal resource.
[0172] In this way, when the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the priority of the first sensing signal resource is the second priority, the entire sensing signal resource group is discarded, thereby avoiding interference with the communication signal resource and improving communication reliability.
[0173] In some embodiments, a first priority is greater than or equal to a first threshold. Optionally, a second priority is less than the first threshold. The first threshold is set based on perceived business requirements.
[0174] In some embodiments, the sensing signal resources within a sensing signal resource group may have at least one communication feature with a similarity greater than a second threshold. Optionally, the sensing signals corresponding to the sensing signal resources within a sensing signal resource group may have at least one identical or similar communication feature. Optionally, the communication feature includes, but is not limited to, quasi-co-location (QCL) source signals, transmit beams, transmit power, etc.
[0175] The second threshold can be set according to requirements, or it can be set as an empirical value. For example, the second threshold is 90%.
[0176] It should be noted that if the feature similarity between any two sensing signal resources is greater than the second threshold, it indicates that the two sensing signal resources have the same or similar characteristics. For example, they may have the same quasi-co-located QCL source signal, or the same transmit beam, transmit power, etc.
[0177] It should be explained that "sensor signal resources belonging to the same sensing signal resource group having the same QCL source signal" means that the sensing signals corresponding to the sensing signal resources belonging to the same sensing signal resource group have the same QCL source signal. Here, the QCL source signal is a concept in 5G NR (New Radio) used to describe the similarity of channel characteristics between two signals. For example, if the channel characteristics of a first sensing signal on one antenna port can be inferred from a second sensing signal on another antenna port, then the first and second sensing signals are considered quasi-co-located.
[0178] In step S2104, the sensing receiver 102 receives the sensing signal based on the sensing signal after the resource discarding process.
[0179] In some embodiments, resource discarding processing refers to the resource discarding process in step S2103.
[0180] In some embodiments, the sensing receiver receives the sensing signal within the measurement window based on the sensing signal resource after resource discard processing.
[0181] Optionally, the measurement window may include a Doppler measurement window and / or a frequency domain window.
[0182] In some embodiments, the sensing transmitter, sensing receiver, or network device configures the sensing receiver with a Doppler measurement window for estimating the sensing target, or configures a frequency domain window for estimating the distance to the sensing target.
[0183] For example, within the measurement window, the sensing receiver receives sensing signals based on the sensing signal resources after resource discarding processing, such as the first resource unit in Figure 2B, i.e., OFDM index {5,7,9}. The sensing receiver can also receive communication signals on the second resource unit, i.e., OFDM index {2,8,11}.
[0184] For example, within the measurement window, the sensing receiver receives sensing signals based on the sensing signal resources after resource discarding processing, such as the first resource unit in Figure 2C, i.e., OFDM index {5,9}. The sensing receiver can also receive communication signals on the second resource unit, i.e., OFDM index {2,8,11}.
[0185] In this embodiment, by selectively discarding some resources based on the priority information of the sensing signal resources when there is a conflict between sensing signal resources and communication signal resources, the impact on communication performance can be reduced while ensuring some sensing needs are met, thereby improving the overall performance of the integrated communication and sensing system. This approach not only optimizes resource allocation and reduces interference and collision problems, but also enhances the synergy and accuracy of communication and sensing functions by reducing resource conflicts.
[0186] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "configuration", "indication", "parameter", "domain", "field", "symbol", "bit", and "data" can be used interchangeably.
[0187] In some embodiments, the terms “resource block (RB)”, “physical resource block (PRB)”, “sub-carrier group (SCG)”, “resource element group (REG)”, “resource element (RE)”, and “sub-carrier” can be used interchangeably.
[0188] 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.
[0189] In some embodiments, terms such as “send,” “transmit,” “report,” “distribute,” “transfer,” “bidirectional transmission,” “send and / or receive” can be used interchangeably.
[0190] 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.
[0191] The sensing method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2104. For example, step S2103 may be implemented as a separate embodiment, step S2104 may be implemented as a separate embodiment, and steps S2103 and S2104 may be implemented as separate embodiments, but are not limited thereto.
[0192] In some embodiments, the order of any two steps S2101 to S2104 can be interchanged or they can be performed simultaneously. For example, the order of steps S2101 and S2103 can be interchanged or they can be performed simultaneously.
[0193] In some embodiments, steps S2102, S2104 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0194] In some embodiments, steps S2101 to S2103 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0195] In some embodiments, steps S2101 and S2102 are optional, and one or more of these steps may be omitted or substituted in different embodiments.
[0196] 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.
[0197] Figure 3 is a flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 3, the embodiment of the present disclosure relates to a sensing method executed by a sensing device, the method comprising:
[0198] Step S3101: In the event of a conflict between sensing signal resources and communication signal resources, at least a portion of the sensing signal resources and / or at least a portion of the communication signal resources are discarded based on the priority information of the sensing signal resources.
[0199] Optionally, the sensing signal resources include one or more first resource units occupied by the sensing signals in the signal domain, and the communication signal resources include one or more second resource units occupied by the communication signals in the signal domain; the sensing device determines that the sensing signal resources and the communication signal resources conflict when at least one first resource unit overlaps with a second resource unit.
[0200] Optionally, the priority information includes the priority of the sensing signal on each first resource unit; discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources based on the priority information of the sensing signal resources includes at least one of the following:
[0201] If the first resource unit of the first priority overlaps with the second resource unit, the second resource unit that overlaps with the first resource unit of the first priority shall be discarded.
[0202] If the first resource unit of the first priority overlaps with the second resource unit, all second resource units are discarded.
[0203] If the first resource unit of the second priority overlaps with the second resource unit, the first resource unit of the second priority that overlaps with the second resource unit is discarded, wherein the first priority is higher than the second priority;
[0204] If the first resource unit of the second priority overlaps with the second resource unit, all first resource units of the second priority are discarded.
[0205] Optionally, the first resource units occupied by the sensed signal in the signal domain are non-uniformly distributed, and the priority of each first resource unit is determined at least by the weight function in the differential co-matrix DCA domain.
[0206] Optionally, there are multiple sensing signal resources, and multiple sensing signal resources correspond to multiple sensing signal resource groups, with one sensing signal resource group corresponding to one priority information.
[0207] Optionally, the sensing signal resources within a sensing signal resource group have at least one communication feature with a similarity greater than a second threshold.
[0208] Optionally, the communication features include at least one of the following:
[0209] Quasi-co-addressable QCL source signal;
[0210] Transmit beam;
[0211] Transmission power.
[0212] Optionally, the priority information is configured by the network device, or the priority information is specified by the protocol, or the priority information is determined by the sensing device.
[0213] Optionally, the sensing device receives the sensing signal within the measurement window based on the sensing signal resource after resource discarding processing.
[0214] Optionally, the sensing signal resources include one or more sensing signal resource groups, and a sensing signal resource group includes at least two sensing signal resources. The priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the sensing signal resource group. Discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources includes: if a first sensing signal resource in the sensing signal resource group conflicts with a communication signal resource and the first sensing signal resource has a first priority, then discarding the communication signal resource.
[0215] Optionally, the sensing signal resources include one or more sensing signal resource groups, and a sensing signal resource group includes at least two sensing signal resources. The priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the sensing signal resource group. Discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources according to the priority information of the sensing signal resources includes: if a first sensing signal resource in the sensing signal resource group conflicts with a communication signal resource and the priority of the first sensing signal resource is the second priority, then discarding the sensing signal resource group.
[0216] Optionally, the first priority is greater than or equal to the first threshold.
[0217] Optionally, the second priority is less than the first threshold.
[0218] Optionally, there are at least one identical or similar communication characteristics among the sensing signals corresponding to the sensing signals within a sensing signal resource group.
[0219] 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.
[0220] Figure 4 is a schematic flowchart illustrating a sensing method according to an embodiment of the present disclosure. As shown in Figure 4, the present disclosure relates to a sensing method for discarding signals or channels based on priority.
[0221] In a sensing system, it is necessary to acquire information such as distance (time delay), velocity (Doppler), and angle related to the sensed target. The sensing receiver measures and acquires the sensed information by receiving sensing signals. For example, when multiple sensing reference signals are configured in the Doppler measurement window in the time domain to sense targets in multiple directions, if a sensing reference signal collides with other communication signals or channels in the time domain, the lower-priority sensing reference signal can be discarded based on priority, thereby reducing the impact on communication performance while ensuring some sensing needs are met.
[0222] As shown in Figure 4, the sensing method includes at least one of the following steps:
[0223] Step S4101: Determine the priority of one or more sensing reference signal resources.
[0224] Optionally, for multiple sensing reference signal resources in a sensing reference signal resource set, the multiple sensing reference signal resources can be divided into multiple sensing reference signal resource subsets, and each sensing reference signal resource subset can be configured with a priority independently or jointly.
[0225] Optionally, sensing reference signal resources belonging to the same subset of sensing reference signal resources have the same or similar characteristics, such as having the same quasi-co-location (QCL) source signal, the same transmit beam, transmit power, etc.
[0226] Optionally, a sensing reference signal resource can be divided into multiple parts in the time domain or frequency domain, and each part can be configured with a priority independently or jointly. The time domain resource can be an OFDM symbol, and the frequency domain resource can be a subcarrier.
[0227] Optionally, the priority can be determined based on perceived business needs.
[0228] Optionally, the priority can be configured by the sensing function node, configured on the network side, or predefined by the protocol.
[0229] Optionally, the priority can be configured through higher-level parameters, such as introducing higher-level parameters like SensingRS-partX-PriorityIndex in the RRC signaling of the sensing reference signal to indicate the priority of the sensing reference signal resource or each part of the sensing reference signal resource. Optionally, the priority can be "high" or "low".
[0230] Optionally, the priority can be indicated by control information, such as by 1 bit or 2 bits of DCI / UCI indicating the priority of the sensing reference signal resource or the portion thereof, for example, 1 bit indicating low priority 0 and high priority 1.
[0231] Alternatively, for non-uniform sensing reference signal resources, the priority of each part can be determined based on the weight function in the differential co-array (DCA) domain, etc.
[0232] Step S4102: When the configured sensing reference signal resource collides with other communication signals or channels, the signal or channel is discarded in the time domain by judging the priority.
[0233] Optionally, when one or more portions of the sensing reference signal are configured as high priority, communication signals or channels are discarded. Optionally, communication signals or channels that collide with the time domain resources or frequency domain resources of the sensing reference signal are discarded, or all communication signals or channels are discarded (to ensure the accuracy of the sensing service).
[0234] Optionally, when one or more portions of the sensing reference signal are configured as low priority, the low-priority sensing reference signal portions are discarded. Optionally, low-priority sensing reference signal portions that collide with communication signals or channel time-domain resources are discarded (the sensing reference signal is partially discarded but can still be used for low-precision sensing measurements), or all low-priority sensing reference signal portions are discarded (to reduce sensing reference signal overhead).
[0235] Optionally, in step 2, the sensing function node or network side is configured with a Doppler measurement window for estimating the sensing target, or a frequency domain window for estimating the distance to the sensing target. Within the window, the sensing receiver estimates parameters such as the Doppler frequency of the sensing target by receiving a sensing reference signal.
[0236] For example, in an integrated sensing system, a sensing transmitter sends a sensing reference signal, and a sensing receiver estimates the sensing target by receiving the sensing reference signal. A sensing reference signal #0 is configured within the allocated Doppler measurement window. This signal is uniformly distributed in the time domain and occupies OFDM symbol indices {5,7,9,11}. OFDM symbols with indices {5,9} (the first part) are configured with high priority, while OFDM symbols with indices {7,11} (the second part) are configured with low priority. A communication reference signal #1, such as DMRS, is configured within the allocated Doppler measurement window and occupies OFDM symbol indices {2,5,8,11}. In the time domain resources, the symbol corresponding to the communication reference signal with OFDM symbol indices {5,11} collides with the sensing reference signal. For the sensing reference signal, since the first part of the sensing reference signal has high priority, it is not discarded; since the second part of the sensing reference signal has low priority, the OFDM symbol with index {11} is discarded, as shown in Figure 2B. Alternatively, the OFDM symbol with index {7,11} is discarded, as shown in Figure 2C. For the communication reference signal, since the OFDM symbol with index {5} collides, the OFDM symbol with index {5} of the communication reference signal is discarded.
[0237] For example, the above scheme can also be used in the frequency domain. For instance, if two reference signals collide in the frequency domain, they are discarded according to the collision rules described above.
[0238] The sensing method described in the above embodiments of this disclosure is a collision discarding scheme based on the priority of a sensing reference signal. It determines the priority of different parts of the sensing reference signal by indicating priorities through higher-layer signaling or other means, and determines collision discarding rules with communication signals or channels based on these priorities. This can reduce the impact on communication performance while ensuring some sensing requirements are met.
[0239] 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.
[0240] 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 a unit or module for implementing the steps performed by the sensing receiver in any of the above methods. Furthermore, another apparatus is proposed that includes a unit or module for implementing the steps performed by the sensing transmitter in any of the above methods.
[0241] 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.
[0242] 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).
[0243] Figure 5 is a schematic diagram of the structure of a sensing device according to an embodiment of the present disclosure. The sensing device 500 is used to perform any of the above methods. In some embodiments, as shown in Figure 5, the sensing device 500 may include at least one of a transceiver module 501, a processing module 502, etc. In some embodiments, the processing module 502 is used to discard at least a portion of the sensing signal resources and / or discard at least a portion of the communication signal resources according to the priority information of the sensing signal resources when there is a conflict between sensing signal resources and communication signal resources. Optionally, the transceiver module is used to perform at least one of the communication steps (e.g., steps S2101, S2102, S2104, but not limited thereto) performed by the sensing transmitter 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 (e.g., step S2103, but not limited thereto) performed by the sensing transmitter 101 in any of the above methods, which will not be described in detail here.
[0244] 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.
[0245] 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.
[0246] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can be interchanged with the transceiver.
[0247] Figure 6A is a schematic diagram of the structure of a sensing device 6100 according to an embodiment of the present disclosure. The sensing device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The sensing device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.
[0248] As shown in Figure 6A, the sensing device 6100 is used to execute any of the above methods. In some embodiments, the sensing device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may 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 sensing device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the sensing device 6100 to execute any of the above methods.
[0249] In some embodiments, the sensing device 6100 further includes one or more transceivers 6102. When the sensing device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps S2101, S2102, S2104, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., step S2103, but not limited thereto). 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, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.
[0250] In some embodiments, the sensing device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the sensing device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the sensing device 6100. In optional embodiments, the sensing device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6103 and can be used to receive data and / or instructions from the memory 6103 or other devices, and can be used to send data and / or instructions to the memory 6103 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6103 and send the data and / or instructions to the processor 6101.
[0251] The sensing device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the sensing device 6100 described in this disclosure is not limited thereto, and the structure of the sensing device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (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.
[0252] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of the present disclosure. For cases where the sensing device 6100 can be a chip or a chip system, please refer to the schematic diagram of the chip 6200 shown in Figure 6B, but it is not limited thereto.
[0253] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.
[0254] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.
[0255] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps S2101, S2102, and S2104, but not limited thereto). The interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 6202 performing data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., step S2103, but not limited thereto).
[0256] 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.
[0257] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device 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.
[0258] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.
[0259] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.
Claims
1. A sensing method, characterized in that, Performed by a sensing device, the method includes: In the event of a conflict between sensing signal resources and communication signal resources, at least a portion of the sensing signal resources and / or at least a portion of the communication signal resources shall be discarded based on the priority information of the sensing signal resources.
2. The method according to claim 1, characterized in that, The sensing signal resources include one or more first resource units occupied by the sensing signals in the signal domain, and the communication signal resources include one or more second resource units occupied by the communication signals in the signal domain. The method further includes: In the case where at least one of the first resource units overlaps with the second resource unit, it is determined that the sensing signal resource conflicts with the communication signal resource.
3. The method according to claim 2, characterized in that, The priority information includes the priority of the sensing signal on the first resource unit; The step of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources based on the priority information of the sensing signal resources includes at least one of the following: If the first resource unit of the first priority overlaps with the second resource unit, the second resource unit that overlaps with the first resource unit of the first priority is discarded. If the first resource unit of the first priority overlaps with the second resource unit, all second resource units are discarded. The first resource unit of the second priority overlaps with the second resource unit, and the first resource unit of the second priority that overlaps with the second resource unit is discarded, wherein the first priority is higher than the second priority; If the first resource unit of the second priority overlaps with the second resource unit, all first resource units of the second priority are discarded.
4. The method according to claim 1, characterized in that, The sensing signal resources include one or more sensing signal resource groups, and a sensing signal resource group includes at least two sensing signal resources. The priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the sensing signal resource group. The step of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources based on the priority information of the sensing signal resources includes: If the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the first sensing signal resource has the highest priority, the communication signal resource is discarded.
5. The method according to claim 1, characterized in that, The sensing signal resources include one or more sensing signal resource groups, and a sensing signal resource group includes at least two sensing signal resources. The priority information of the sensing signal resource group indicates the priority of the sensing signal resources within the sensing signal resource group. The step of discarding at least a portion of the sensing signal resources and / or discarding at least a portion of the communication signal resources based on the priority information of the sensing signal resources includes: If the first sensing signal resource in the sensing signal resource group conflicts with the communication signal resource, and the priority of the first sensing signal resource is the second priority, then the sensing signal resource group is discarded.
6. The method according to claim 4, characterized in that, The first priority is greater than or equal to the first threshold.
7. The method according to claim 5, characterized in that, The second priority is less than the first threshold.
8. The method according to any one of claims 4-7, characterized in that, There is at least one identical or similar communication feature among the sensing signals corresponding to the sensing signals within a sensing signal resource group.
9. The method according to claim 2 or 3, characterized in that, The first resource units occupied by the sensed signal in the signal domain are non-uniformly distributed, and the priority of each first resource unit is determined at least by the weight function in the differential co-array DCA domain.
10. The method according to any one of claims 1-3, characterized in that, The number of sensing signal resources is multiple, and multiple sensing signal resources correspond to multiple sensing signal resource groups. Each sensing signal resource group corresponds to a priority information.
11. The method according to claim 10, characterized in that, Each sensing signal resource within a sensing signal resource group has at least one communication feature with a similarity greater than a second threshold.
12. The method according to claim 8 or 11, characterized in that, The communication features include at least one of the following: Quasi-co-addressable QCL source signal; Transmit beam; Transmission power.
13. The method according to any one of claims 1-12, characterized in that, The priority information is configured by the network device, or it is specified by the protocol, or it is determined by the sensing device.
14. The method according to any one of claims 1-13, characterized in that, The method further includes: Within the measurement window, the resource reception sensing signal is received based on the sensing signal after resource discarding processing.
15. A sensing device, characterized in that, include: The processing module is configured to discard at least a portion of the sensing signal resources and / or discard at least a portion of the communication signal resources according to the priority information of the sensing signal resources when there is a conflict between the sensing signal resources and the communication signal resources.
16. A sensing device, characterized in that, include: One or more processors; A memory coupled to the processor, the memory storing executable instructions, which, when executed by the processor, cause the sensing method of any one of claims 1-14 to be executed.
17. A sensing system, characterized in that, It includes a sensing transmitter and a sensing receiver, wherein the sensing receiver is configured to implement the sensing method according to any one of claims 1-14.
18. A storage medium storing instructions, characterized in that, When the instructions are executed on the sensing device, the sensing device performs the sensing method according to any one of claims 1-14.
19. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the sensing device, the sensing method according to any one of claims 1-14 is implemented.