System and method for perception with synaesthetic integrated communication assistance

Abstract

A method of wireless communication includes transmitting, by a transmitting node of a mobility management assisted integrated sensing and communication (ISAC) system, a sensing reference signal (RS); measuring, by a receiving node of the mobility management assisted ISAC system, the sensing RS; and determining, by a wireless communication device or network node of the ISAC system, a sensing configuration of the sensing receiver based on radio resource management (RRM) measurement values. The receiving node can select a transmitting node according to the RRM measurement values and some rules. The receiving node can recommend the selected transmitting node to the network node per sensing service, per sensing area, or per sensing target.

Description

Technical Field

[0001] This disclosure generally relates to wireless communication, including but not limited to systems and methods for sensing aided by communication-assisted sensing integration (ISAC). Background Technology

[0002] The Third Generation Partnership Project (3GPP), a standards organization, is currently developing a new radio interface called 5G New Radio (5G NR) and a next-generation packet core network (NG-CN or NGC). 5G NR will have three main components: a 5G Access Network (5G-AN), a 5G Core Network (5GC), and User Equipment (UE). To facilitate the implementation of different data services and requirements, the elements of the 5GC (also known as network functions) have been simplified so that some are software-based and some are hardware-based, allowing these elements to be adapted as needed. The ISAC system aims to provide both communication and sensing functions based on improvements in the field of wireless communication systems. For communication functions, the base station (BS) transmits downlink (DL) signals and / or data to the user equipment (UE), where the UE includes a receiving antenna and can receive signals. For sensing functions, the base station transmits sensing reference signals to sensing targets. The sensing reference signal can be reflected by one or more sensing targets, and then the reflected sensing reference signal is received by the UE. In this case, the sensing target does not contain an antenna and does not receive signals.

[0003] In wireless communication systems, radio resource management (RRM) measurements are required to improve base station quality. Based on these RRM measurements, cell selection / reselection can be performed in the UE's Radio Resource Control_Idle (RRC_Idle) or RRC_Inactive states, or cell handover can be performed in the UE's RRC_Connected state.

[0004] For sensing functions, multiple transmitting base stations and multiple receiving user equipments can exist. Due to the movement of the sensing target and / or receiving UE, the selection of the transmitting BS and receiving UE is crucial. However, there is currently no solution for the selection of transmitters and receivers. Furthermore, configuring and measuring the sensing reference signal to facilitate the selection of transmitters and receivers is also a problem. In this disclosure, we provide solutions for configuring and measuring the sensing reference signal, as well as efficient methods for selecting transmitters and receivers for sensing purposes. Summary of the Invention

[0005] The exemplary embodiments disclosed herein are intended to address problems related to one or more of the problems presented in the prior art, and provide additional features that will become apparent when taken in conjunction with the accompanying drawings and the following detailed description. Exemplary systems, methods, apparatuses, and computer program products are disclosed herein according to various embodiments. However, it should be understood that these embodiments are presented by way of example only and are not restrictive, and that various modifications can be made to the disclosed embodiments while remaining within the scope of this disclosure, as will be apparent to those skilled in the art who have read this disclosure.

[0006] At least one aspect relates to a system, method, apparatus, or computer-readable medium. A wireless communication method includes: a transmitting node of a mobility management-assisted integrated sensing and communication (ISAC) system transmitting a sensing reference signal (RS); a receiving node of the mobility management-assisted ISAC system measuring the sensing RS; and a wireless communication device or network node of the ISAC system determining a sensing configuration of a sensing receiver based on Radio Resource Management (RRM) measurements. The receiving node can select a transmitting node based on the RRM measurements and some rules. The receiving node can recommend the selected transmitting node to the network node for each sensing service, each sensing area, or each sensing target.

[0007] In some embodiments, RRM measurements that meet certain conditions can be reported by the receiving node to the network node used for sensing measurements. The sending and receiving nodes can be determined by the network node based on the RRM measurements. The sending and receiving nodes can be selected by the serving base station based on the RRM measurements. The selected sending and receiving nodes can be recommended to the network node by the serving base station. The selected sending and receiving nodes are recommended to the network node by the serving base station per sensing service, per sensing area, or per sensing target.

[0008] In some embodiments, the receiving node measures the inter-frequency sensing RS outside the measurement gap if certain conditions are met. Otherwise, the receiving node measures the inter-frequency sensing RS within the measurement gap. The conditions include at least one or more of the following: an indicator is configured to indicate that the inter-frequency sensing RS can be measured outside the sensing measurement gap, and / or the receiving node supports the ability to measure the inter-frequency sensing RS outside the sensing measurement gap, and / or the bandwidth of the inter-frequency sensing RS is within the active bandwidth portion (BWP).

[0009] In some embodiments, if the bandwidth of the co-channel sensing RS is within the active bandwidth portion (BWP), the receiving node also measures the co-channel sensing RS outside the measurement gap. Otherwise, the receiving node measures the co-channel sensing RS within the measurement gap. The receiving node also measures only the sensing RS transmitted by the transmitting node that satisfies the S criterion. The receiving node also measures only the sensing RS transmitted by the transmitting node whose RRM measurement and either or both of the previous sensing measurement satisfy the corresponding threshold / range. If the sensing measurement does not satisfy the sensing threshold / range, the receiving node may not measure the sensing RS and RRM measurement for the next duration.

[0010] In some embodiments, the wireless communication device may be a transmitting node or a receiving node. The sensing RS may be a Synchronization Signal Block (SSB), a Channel State Information-Reference Signal (CSI-RS), a Positioning Reference Signal (PRS), a unified RS, or a sensing-specific RS. In some arrangements, if the sensing RS is an SSB, the SSB may be measured only for sensing purposes within the SSB Measurement Timing Configuration (SMTC). The sensing RS may be a co-frequency sensing RS if the center frequency of the sensing RS is the same as the center frequency of the serving cell's SSB, and the sub-carrier space (SCS) of the sensing RS is the same as the SCS of the serving cell's SSB. Otherwise, the sensing RS may be a different-frequency sensing RS. The sensing configuration includes measurement gaps, which may be specific measurement gaps for sensing RS measurements or measurement gaps shared with other RS ​​measurements. The sensing configuration includes thresholds / ranges for evaluating RRM measurements and thresholds / ranges for evaluating previous sensing measurements. The perception configuration may include perception thresholds / ranges for evaluating perception measurements. The perception configuration may also include transmitting and receiving nodes. The perception configuration may include the expected perception area when the perceived target moves. The expected perception area may be an absolute location, a local location, a list of transmitting nodes, or a list of receiving nodes.

[0011] In some embodiments, if the measurement gap can be a shared measurement gap, the sharing configuration includes a measurement gap sharing scheme. The configuration of the measurement gap sharing scheme includes at least one or more of the following: a measurement gap sharing type, and an indicator indicating the joint encoding used to measure the time portion of different RSs. In some arrangements, if the sensing RS can be an SSB, the sensing configuration includes two or more sensing windows, one of which can be a primary sensing window associated with a primary SMTC, and the other can be a secondary sensing window associated with a secondary SMTC. The configuration of the primary sensing window includes at least one or more of the following: duration, period, start time-related information, and / or reference time. The configuration of the secondary sensing window includes at least one or more of the following: cell ID, duration, period, start time-related information, and / or reference time. In some arrangements, if the sensing RS can be an SSB, the sensing configuration includes one or more Sensing Measurement Timing Configurations (Sensing-MTCs). The configuration of the Sensing-MTC includes at least one or more of the following: duration, period, offset, and / or reference time. The SSB is used only for sensing purposes within the Sensing-MTC.

[0012] In some embodiments, if the sensing RS can be a CSI-RS, the sensing configuration includes one or more Sensing-CSI-MTCs. The Sensing-CSI-MTC configuration includes at least one or more of the following: duration, period, offset, and / or reference time. The CSI-RS is used for sensing purposes only within the Sensing-CSI-MTC. The next duration can be configured by the network node or base station, or it can be pre-configured. The sensing configuration includes sensing request information provided by the network node to a transmitting node located in the intended sensing area, and sensing assistance information provided by the network node to a receiving node located in the intended sensing area. The sensing request information includes at least one or more of the following: a request for sensing RS transmission, the configuration of the sensing RS, a request for SSB / CSI-RS transmission, or the configuration of the SSB / CSI-RS. The sensing assistance information includes at least one or more of the following: the ID information of the transmitting node that successfully responded to the sensing request, the configuration of the sensing RS, the configuration of the SSB / CSI-RS, or the configuration for RRM measurements.

[0013] In some embodiments, the receiving node can measure the sensed RS in RRC_IDLE and RRC_INACTIVE states. The receiving node can report sensed measurements during cell handover. The receiving node measures the sensed RS transmitted by N sending nodes based on the sending node's sensed priority. The receiving node reports the sensed measurements of N sending nodes based on the sending node's sensed priority. Receiver nodes with low sensed priority do not measure sensed RS. In some arrangements, the sensed configuration includes the sensed priority of the sending node and the sensed priority of the receiving node. The sensed priority of the sending node and the sensed priority of the receiving node can be associated with RRM measurements and with the relative position between the sending / receiving node and the sensed target. The sensed priority of the sending node can also be associated with the sending node's reselection priority. Attached Figure Description

[0014] Various exemplary embodiments of this solution are described in detail below with reference to the following figures or drawings. These figures are provided for illustrative purposes only and depict only exemplary embodiments of this solution to aid the reader's understanding. Therefore, the figures should not be considered as limitations on the breadth, scope, or applicability of this solution. It should be noted that these figures are not necessarily drawn to scale for clarity and ease of explanation.

[0015] Figure 1 An example cellular communication network in which the techniques disclosed herein can be implemented according to embodiments of this disclosure is shown.

[0016] Figure 2 Block diagrams of example base stations and user equipment according to some embodiments of the present disclosure are shown.

[0017] Figure 3 A shared portion for each reference signal measurement is shown as an example according to an embodiment of this disclosure.

[0018] Figure 4 An example of a shared portion for each reference signal measurement within a measurement gap length is shown according to an embodiment of this disclosure.

[0019] Figure 5 An example of a shared portion for each reference signal measurement within a measurement gap length is shown according to an embodiment of this disclosure.

[0020] Figure 6 An example process for selecting a sensing transmitter according to an embodiment of this disclosure is shown.

[0021] Figure 7 Another example process for selecting a sensing transmitter according to an embodiment of this disclosure is shown.

[0022] Figure 8 Another example process for selecting a sensing transmitter according to an embodiment of this disclosure is shown.

[0023] Figure 9 Another example process for selecting a sensing receiver according to an embodiment of this disclosure is shown.

[0024] Figure 10 An example of a mobile sensing target according to an embodiment of this disclosure is shown.

[0025] Figure 11 A flowchart is shown of a communication-assisted sensing method using integrated sensing, according to an embodiment of the present disclosure. Detailed Implementation

[0026] Mobile communication technology and environment Figure 1 An example wireless communication network and / or system 100 that can implement the techniques disclosed herein is illustrated according to embodiments of this disclosure. In the following discussion, the wireless communication network 100 can be any wireless network, such as a cellular network or a narrowband Internet of Things (NB-IoT) network, and is referred to herein as network 100. This example network 100 includes base stations 102 (hereinafter referred to as "BS 102", also called wireless communication nodes) and user equipment 104 (hereinafter referred to as "UE 104", also called wireless communication devices) that can communicate with each other via communication links 110 (e.g., wireless communication channels), and a cluster of cells 126, 130, 132, 134, 136, 138, and 140 covering a geographic area 101. Figure 1 In this context, BS 102 and UE 104 are included within the corresponding geographical boundaries of cell 126. Each of the other cells 130, 132, 134, 136, 138, and 140 may include at least one base station operating on its allocated bandwidth to provide sufficient radio coverage to the intended users of that cell.

[0027] For example, BS 102 can operate on the allocated channel transmission bandwidth to provide sufficient coverage to UE 104. BS 102 and UE 104 can communicate via downlink radio frame 118 and uplink radio frame 124, respectively. Each radio frame 118 / 124 can also be divided into subframes 120 / 127, which can include data symbols 122 / 128. In this disclosure, BS 102 and UE 104 are generally described herein as non-limiting examples of "communication nodes" that can practice the methods disclosed herein. According to various embodiments of this solution, such communication nodes may be capable of wireless and / or wired communication.

[0028] Figure 2 A block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) according to some embodiments of this solution is shown. System 200 may include components and elements configured to support known or conventional operating characteristics that do not need to be described in detail herein. In one illustrative embodiment, system 200 may be used in wireless communication environments (such as those described above) Figure 1 In a wireless communication environment 100, data symbols are transmitted (e.g., sent and received).

[0029] System 200 typically includes base station 202 (hereinafter referred to as "BS 202") and user equipment 204 (hereinafter referred to as "UE 204"). BS 202 includes BS (base station) transceiver module 210 (hereinafter also referred to as transceiver module 210, transceiver 210 or base station transceiver 210), BS antenna 212 (hereinafter also referred to as antenna 212, downlink antenna 212 or RF antenna arrangement 212), BS processor module 214 (hereinafter also referred to as processor module 214), BS memory module 216 (hereinafter also referred to as memory module 216) and network communication module 218, each module being coupled and interconnected with each other as needed via data communication bus 220. UE 204 includes a UE (User Equipment) transceiver module 230 (hereinafter also referred to as UE transceiver 230, transceiver module 230, or transceiver 230), a UE antenna 232 (hereinafter also referred to as antenna 232, uplink antenna 232, or RF antenna arrangement 232), a UE memory module 234 (hereinafter also referred to as memory module 234), and a UE processor module 236 (hereinafter also referred to as processor module 236). Each module is coupled to and interconnected with each other as needed via a data communication bus 240. BS 202 communicates with UE 204 via a communication channel 250 (hereinafter also referred to as: wireless transmission link 250, wireless data communication link 250), which may be any wireless channel or other medium suitable for the data transmission described herein.

[0030] As those skilled in the art will understand, system 200 may also include, in addition to Figure 2 Any number of modules other than those shown herein. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in conjunction with the embodiments disclosed herein can be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are described in general terms of their functionality. Whether this functionality is implemented as hardware, firmware, or software may depend on the specific application and design constraints imposed on the system as a whole. Those skilled in the art can implement this functionality appropriately for each specific application; however, such implementation decisions should not be construed as limiting the scope of this disclosure.

[0031] According to some embodiments, UE transceiver 230 may be referred to herein as an "uplink" transceiver 230 including a radio frequency (RF) transmitter and an RF receiver, each RF transmitter and RF receiver including circuitry coupled to antenna 232. A duplex switch (not shown) may alternately couple the uplink transmitter or receiver to the uplink antenna in a time-duplex manner. Similarly, according to some embodiments, BS transceiver 210 may be referred herein as a "downlink" transceiver 210 including an RF transmitter and an RF receiver, each RF transmitter and RF receiver including circuitry coupled to antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to downlink antenna 212 in a time-division duplex manner. The operation of the two transceiver modules 210 and 230 may be time-coordinated such that while the downlink transmitter is coupled to downlink antenna 212, the uplink receiver circuitry is coupled to uplink antenna 232 to receive transmissions via wireless transmission link 250. Conversely, the operation of the two transceivers 210 and 230 can be coordinated in time, such that while the uplink transmitter is coupled to the uplink antenna 232, the downlink receiver is coupled to the downlink antenna 212 to receive transmissions via the wireless transmission link 250. In some embodiments, there is tight time synchronization with a minimum guard time between changes in the duplex direction.

[0032] UE transceiver 230 and base transceiver 210 are configured to communicate via wireless data communication link 250 and cooperate with RF antenna arrangements 212 / 232 appropriately configured to support specific wireless communication protocols and modulation schemes. In some illustrative embodiments, UE transceiver 210 and base transceiver 210 are configured to support industry standards such as Long Term Evolution (LTE) and emerging 5G standards. However, it should be understood that this disclosure is not necessarily limited to application to specific standards and associated protocols. Rather, UE transceiver 230 and base transceiver 210 may be configured to support alternative or additional wireless data communication protocols (including future standards or variations thereof).

[0033] According to various embodiments, BS 202 may be, for example, an evolved NodeB (eNB), a serving eNB, a target eNB, a femto station, or a pico station. In some embodiments, UE 204 may be implemented in various types of user equipment, such as mobile phones, smartphones, personal digital assistants (PDAs), tablets, laptops, wearable computing devices, etc. Processor modules 214 and 236 may be implemented or realized using a general-purpose processor, content-addressable memory, digital signal processor, application-specific integrated circuit, field-programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. The processor may be implemented in this way as a microprocessor, controller, microcontroller, or state machine, etc. The processor may also be implemented as a combination of multiple computing devices, such as a combination of a digital signal processor and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors incorporating a digital signal processor core, or any other combination of such configurations.

[0034] Furthermore, the steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be directly implemented in hardware, firmware, software modules executed by processor modules 214 and 236 respectively, or any practical combination thereof. Memory modules 216 and 234 can be implemented as RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 can be coupled to processor modules 210 and 230 respectively, such that processor modules 210 and 230 can read information from and write information to memory modules 216 and 234 respectively. Memory modules 216 and 234 can also be integrated into their respective processor modules 210 and 230. In some embodiments, memory modules 216 and 234 may each include cache memory for storing temporary variables or other intermediate information during the execution of instructions to be executed by processor modules 210 and 230 respectively. Memory modules 216 and 234 may each include non-volatile memory for storing instructions to be executed by processor modules 210 and 230, respectively.

[0035] Network communication module 218 broadly represents the hardware, software, firmware, processing logic, and / or other components of base station 202 that enable bidirectional communication between base station transceiver 210 and other network components and communication nodes configured to communicate with base station 202. For example, network communication module 218 may be configured to support Internet or WiMAX (World Interoperability for Microwave Access) services. In a typical but non-limiting deployment, network communication module 218 provides an 802.3 Ethernet interface, allowing base station transceiver 210 to communicate with traditional Ethernet-based computer networks. In this way, network communication module 218 may include a physical interface for connecting to a computer network (e.g., a Mobile Switching Center (MSC)). The terms “configured for,” “configured to,” and their various variations used in this document in relation to a specified operation or function refer to devices, components, circuits, structures, machines, signals, etc., that are physically constructed, programmed, formatted, and / or arranged to perform the specified operation or function.

[0036] The Open Systems Interconnection (OSI) model (referred to herein as the "OSI model") is a conceptual and logical layout that defines network communications used by systems (e.g., wireless communication devices, wireless communication nodes) for interconnecting and communicating with other systems. The model is divided into seven sub-components or layers, each representing a conceptual set of services provided to its upper and lower layers. The OSI model also defines logical networks and efficiently describes computer packet transmission using different layer protocols. The OSI model may also be referred to as the seven-layer OSI model or the seven-layer model. In some embodiments, the first layer may be the physical layer. In some embodiments, the second layer may be the Medium Access Control (MAC) layer. In some embodiments, the third layer may be the Radio Link Control (RLC) layer. In some embodiments, the fourth layer may be the Packet Data Convergence Protocol (PDCP) layer. In some embodiments, the fifth layer may be the Radio Resource Control (RRC) layer. In some embodiments, the sixth layer may be a Non-Access Stratum (NAS) or Internet Protocol (IP) layer, and the seventh layer is other layers.

[0037] Various exemplary embodiments of this solution are described below with reference to the accompanying drawings to enable those skilled in the art to create and use this solution. As will be apparent to those skilled in the art, various changes or modifications can be made to the examples described herein without departing from the scope of this solution after reading this disclosure. Therefore, this solution is not limited to the exemplary embodiments and applications described and illustrated herein. Furthermore, the specific order or hierarchy of steps in the methods disclosed herein is merely exemplary. Based on design preferences, the specific order or hierarchy of steps in the disclosed methods or processes can be rearranged while remaining within the scope of this solution. Therefore, those skilled in the art will understand that the methods and techniques disclosed herein present various steps or actions in an exemplary order, and unless otherwise expressly stated, this solution is not limited to the specific order or hierarchy presented.

[0038] Communication-assisted sensing in ISAC Example 1: Configuration of Sensing Reference Signal BS 102 may include Next Generation (NG)-RAN nodes, gNBs, NG-gNBs, cells, and / or Transmission Reception Points (TRPs). For RRM measurements, Synchronization Signal Blocks (SSBs) and Channel State Information Reference Signals (CSI-RS) are used as Reference Signals (RS). For example, SBs and CSI-RS can be used as RSs and can provide RRM measurement values ​​for BS 102. In the SSB configuration, the SSB Measurement Timing Configuration (SMTC) can be configured to include time-domain information (e.g., minutes, seconds, nanoseconds, etc.). The SSBs within the SMTC can be measured by UE 104 for RRM measurement values. For example, UE 104 can measure SSBs within the SMTC to calculate RRM measurement values. In current RRM measurement techniques, two SMTCs can be configured, one of which can be labeled as the primary SMTC and the other as the secondary SMTC. The primary SMTC can be used for RRM measurements of all configured BS / cell 102 (hereinafter referred to as BS 102) with the same center frequency (e.g., the center point of the allocated frequency). The secondary SMTC can be used for RRM measurements of a specific BS 102 that belongs to a configured BS 102. The cycle of the secondary SMTC can be shorter than that of the primary SMTC. In some arrangements, the cycle of the secondary SMTC can be much shorter than that of the primary SMTC. In some arrangements, the cycle of the secondary SMTC may be infinitesimally shorter than that of the primary SMTC.

[0039] Solution 1: Reuse SSB and CSI-RS as sensing RS For sensing, the SSB and CSI-RS can be reused as sensing RS. In the first example, the SSB configuration may not require enhancement, thus allowing SSB measurement within the SMTC, further enabling SSB measurement within the SMTC for RRM and sensing measurements. The SSB can be configured to implement sensing functionality. In some arrangements, the SSB may include one or more configurations to implement sensing functionality.

[0040] In the second example, two or more sensing windows can be configured in the time domain, one of which is the primary sensing window and the other is the secondary sensing window. The primary window corresponds to the primary SMTC, and the secondary window corresponds to the secondary SMTC. In some arrangements, the primary window may be located within the primary SMTC and used to measure multiple configured BS 102s with the same center frequency to obtain sensing measurements. In some arrangements, the secondary window may be located within the secondary SMTC and used to measure a specific BS 102 within a configured BS 102 to obtain sensing measurements. Sensing measurements can be performed by measuring the SSB within the sensing window. In some arrangements, the SSB within the SMTC can be measured for RRM measurements regardless of whether it is located within the sensing window. In another arrangement, the SSB within the sensing window can only be measured for sensing measurements and not for RRM measurements. In yet another arrangement, the SSB can be measured for either sensing or RRM measurements. In yet another arrangement, the SSB located within the SMTC but outside the sensing window is measured only for RRM measurements.

[0041] The configuration of the primary sensing window may include at least one of the following: duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. The configuration of the secondary sensing window may include at least one of the following: BS 102 ID or TRP ID (e.g., physical cell ID), duration, period, start time, and reference time. In some arrangements, the configuration of the sensing window may be associated with the configuration of the corresponding SMTC. The configuration of the corresponding SMTC may include at least one of the SMTC's period, duration, and offset. For example, the duration of the primary sensing window is less than or equal to the duration of the primary SMTC, while the period of the primary sensing window is greater than or equal to the period of the primary SMTC. In another example, the duration of the secondary sensing window is less than or equal to the duration of the secondary SMTC, while the period of the secondary sensing window is greater than or equal to the period of the secondary SMTC.

[0042] In some configurations, multiple sensing windows can be configured by BS 102. In another configuration, multiple sensing windows can be generated via the Location Management Function / Sensing Function (LMF / SF). BS 102 can send the SMTC configuration to the LMF / SF, which can then configure multiple sensing windows for UE104 and BS 102. In some configurations, the LMF can recommend multiple sensing window configurations to BS 102, and BS 102 can prioritize the recommended configurations.

[0043] In the third example, a sensing window is configured in the time domain. This sensing window may correspond to a primary SMTC, or it may correspond to both a primary SMTC and a secondary SMTC. For example, if the sensing window corresponds to a primary SMTC, then the sensing window is located within the primary SMTC. In another example, if a sensing window corresponds to both a primary SMTC and a secondary SMTC, then the sensing window is located within either the primary or secondary SMTC. In some arrangements, the configuration of the sensing window may include at least one of duration (e.g., time length), period, start time (e.g., absolute time, relative time with an offset, where the offset corresponds to the period), and reference time.

[0044] In another arrangement, if a sensing window corresponds to a primary SMTC, the configuration of the sensing window is related to the configuration of the primary SMTC. The configuration of the primary SMTC may include at least one of the SMTC's period, duration, and offset. For example, the duration of the sensing window is less than or equal to the duration of the primary SMTC, and the period of the sensing window is greater than or equal to the period of the primary SMTC. In another arrangement, if a sensing window corresponds to both a primary SMTC and a secondary SMTC, the configuration of the sensing window is related to the configurations of both the primary and secondary SMTCs. The configuration of the primary SMTC may include at least one of the primary SMTC's period, duration, and offset. The configuration of the secondary SMTC may include at least one of the secondary SMTC's period, duration, and offset. For example, the duration of the sensing window is less than or equal to the minimum duration of the primary and secondary SMTCs, and the period of the sensing window is greater than or equal to the maximum period of the primary and secondary SMTCs.

[0045] In the fourth example, a Sensing Measurement Timing Configuration (Sensing-MTC) can be configured for sensing purposes. SSBs within the Sensing-MTC can be measured for sensing purposes. The Sensing-MTC configuration may include at least one of the following: the duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. In some arrangements, the Sensing-MTC may be configured by BS 102 or LMF / SF, or it may be pre-configured. The Sensing-MTC may or may not be consistent with the SMTC. In some arrangements, SSBs within overlapping Sensing-MTCs and SMTCs can be measured for both sensing and RRM measurements.

[0046] In the fifth example, two or more Sensing-MTCs can be configured for SSB measurements. One Sensing-MTC can be a primary Sensing-MTC, which can be applied to sensing measurements of all configured BS / cell 102s (hereinafter referred to as BS 102) having the same center frequency (e.g., the center point of the assigned frequency). Another Sensing-MTC can be a secondary Sensing-MTC, which can be applied to a specific BS 102 belonging to the configured BS 102. In some arrangements, the density of secondary Sensing-MTCs can be higher than that of the primary Sensing-MTC. The configuration of the primary Sensing-MTC can include at least one of the following: the duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. The configuration of the secondary Sensing-MTC can include at least one of the following: BS102 ID or TRP ID (e.g., physical cell ID), duration, period, start time, and reference time. In some setups, the cycle of the secondary Sensing-MTC can be shorter than that of the primary Sensing-MTC. In some setups, the Sensing-MTC can be configured by BS 102 or LMF / SF, or it can be pre-configured. The Sensing-MTC can be consistent with or inconsistent with the SMTC. In some setups, SSBs within overlapping Sensing-MTCs and SMTCs can be measured for sensing measurements and RRM measurements.

[0047] For a CSI-RS configuration of sensing functionality, one or more Sensing-CSI-MTCs can be configured for sensing measurements. In some arrangements, a Sensing-CSI-MTC can be applied as a primary Sensing-CSI-MTC to each configured BS 102. In some arrangements, a Sensing-CSI-MTC can be applied as a primary Sensing-CSI-MTC to each configured BS 102, and a Sensing-CSI-MTC can be applied as a secondary Sensing-CSI-MTC to a specific BS 102 belonging to the configured BS 102. In some arrangements, a primary Sensing-CSI-MTC can be applied to the configured BS 102 for CSI-RS measurements, while a secondary Sensing-CSI-MTC can be applied to a specific BS 102 belonging to the configured BS 102 for CSI-RS measurements. In some arrangements, CSI-RS measurements can be taken within a Sensing-CSI-MTC for sensing. The configuration of the primary Sensing-CSI-MTC may include at least one of the following: the duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. The configuration of the secondary Sensing-CSI-MTC may include at least one of the following: BS 102 ID or TRP ID (e.g., physical cell ID), duration, period, start time, and reference time. In some arrangements, the Sensing-CSI-MTC may be configured by BS 102 or LMF / SF, or it may be pre-configured.

[0048] Solution 2: Reuse PRS as a sensing RS The Position Reference Signal (PRS) can be reused as a sensing RS. For sensing purposes using PRS measurements, one or more Sensing-PRS-MTCs can be configured for sensing measurements. In some arrangements, the PRS within a Sensing-PRS-MTC can be measured for sensing purposes. In some arrangements, a single Sensing-PRS-MTC can be configured as the primary Sensing-PRS-MTC for PRS measurements on a configured TRP / BS 102 (referred to herein as BS 102). In some arrangements, a primary Sensing-PRS-MTC and a secondary Sensing-PRS-MTC can be configured. The secondary Sensing-PRS-MTC can be used for PRS measurements on a specific configuration of BS 102 belonging to the configured BS 102. The configuration of the primary Sensing-PRS-MTC may include at least one of the following: the duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. The configuration of the secondary Sensing-PRS-MTC may include at least one of the following: BS 102 ID or TRP ID (e.g., physical cell ID), duration, period, start time, and reference time. In some arrangements, the Sensing-PRS-MTC may be configured by BS 102 or LMF / SF, or it may be pre-configured. In some arrangements, the Sensing-PRS-MTC may overlap with a measurement gap or a processing window (PPW) for positioning, or it may not overlap. Overlapping Sensing-PRS-MTCs and PRS within measurement gaps / PPWs can be measured for sensing and positioning measurements.

[0049] Solution 3: Design a unified RS for different purposes In the ISAC system, a unified RS can be designed to reduce the complexity of RS design. A unified RS can be used for one or more purposes, including RRM measurement, localization, and sensing. Measurements can be performed based on one or more configurations of the unified RS.

[0050] In one example, the ISAC system can configure a specific MTC for a unified RS to be used for different purposes. For example, for RRM measurement purposes, the ISAC system can configure an RRM-MTC for unified RS measurement. In this arrangement, the SMTC used for SSB measurement can be reused as the RRM-MTC. In another example, for positioning purposes, the ISAC system can configure a Positioning-MTC for unified RS measurement. In yet another example, for sensing purposes, the ISAC system can configure a Sensing-MTC for unified RS measurement. The configuration of the MTC for these purposes includes at least one of the following: period, offset, and duration. In some arrangements, the unified RS within an MTC can be measured to achieve the purpose corresponding to the MTC. In some arrangements, the MTCs for each purpose may or may not overlap. That is, the MTCs for each purpose cannot overlap, can partially overlap, or can completely overlap. The unified RS in the overlapping area of ​​multiple MTCs can be measured for multiple purposes corresponding to multiple MTCs. The MTC can be configured by BS 102 or LMF / SF, or it can be pre-configured.

[0051] In the second example, one or more unified MTCs can be configured for unified RS measurements for different purposes. Unified RS measurements for different purposes can share the same MTC. Only unified RS measurements within a unified MTC can be used for their corresponding measurements. In some arrangements, a single unified MTC can be configured as the primary unified MTC for unified RS measurements on a configured TRP / BS 102 (referred to herein as BS 102). In some arrangements, a primary unified MTC and a secondary unified MTC can be configured. The secondary unified MTC can be applied to unified RS measurements on BS 102 belonging to a specific configuration of the configured BS 102. The configuration of the primary unified MTC can include at least one of duration (e.g., time length), period, and offset. The configuration of the secondary unified MTC can include at least one of BS 102 ID or TRP ID (e.g., physical cell ID), duration, period, and offset. The period of the secondary unified MTC is shorter than that of the primary unified MTC. In some arrangements, the unified MTC can be configured by BS 102 or LMF / SF, or it can be pre-configured.

[0052] Unified RS measurements used for two or more purposes (e.g., positioning, sensing) can share the same MTC. Furthermore, the unified MTC can be configured according to the measurement purpose. For example, a unified MTC can be configured for unified RS measurements used for both positioning and sensing purposes, and a specific MTC can be configured separately for unified RS measurements used for RRM measurement purposes. The MTC configuration can include at least one of period, offset, and duration. If the MTC is a secondary MTC, the MTC configuration can include a BS 102 ID or a TRP ID. In some arrangements, the unified MTC can be configured by BS102 or LMF / SF, or it can be pre-configured.

[0053] Solution 4: Design new RS for different purposes In an ISAC system, a new RS can be designed as a sensing RS. For example, a sensing RS can be configured by restricting the transmission and reception of the sensing RS to the SMTC. In some arrangements, the sensing RS can be transmitted or received within the SMTC for measurement purposes. The configuration of the new sensing RS enables the receiving UE 104 to receive and measure both the SSB and the sensing RS within the SMTC.

[0054] In the second example, one or more Sensing-MTCs can be configured for the sensing RS. One Sensing-MTC can be the primary Sensing-MTC and can be applied to sensing measurements of all configured BS / cell 102s (hereinafter referred to as BS 102) having the same center frequency (e.g., the center point of the assigned frequency). Another Sensing-MTC can be a secondary Sensing-MTC and can be applied to a specific BS 102 belonging to an already configured BS 102. In some arrangements, the density of secondary Sensing-MTCs can be higher than the density of primary Sensing-MTCs. The configuration of the primary Sensing-MTC can include at least one of the following: the duration (e.g., time length), period, start time (e.g., absolute time, relative time with offset, where the offset corresponds to the period), and reference time. The configuration of the secondary Sensing-MTC can include at least one of the following: BS 102 ID or TRP ID (e.g., physical cell ID), duration, period, start time, and reference time. In some configurations, Sensing-MTC can be configured by BS 102 or LMF / SF, or it can be pre-configured.

[0055] Example 2: Configuration of the measurement gap for sensing In an ISAC system, the receiving UE 104 can receive DL signals for communication, data, and / or sensing RS for sensing functions. The frequency bandwidth of the sensing RS may or may not be within the active bandwidth portion (BWP). Furthermore, the receiving UE 104 can receive and measure sensing RS from multiple transmitting BSs, which may have different frequencies. Therefore, how to receive and measure sensing RS in an ISAC system while ensuring the reception of communication signals and data is a problem. This embodiment provides a solution for the reception and measurement of sensing RS in an ISAC system.

[0056] For sensing RS reception and measurement, a measurement gap can be used, which can be a time window. During the measurement gap, the receiving UE 104 can receive and measure the sensing RS to achieve sensing functionality. Two solutions are provided for configuring the measurement gap for sensing purposes.

[0057] Solution 1: Configure specific sensing measurement gaps for sensing purposes A sensing measurement gap can be configured for sensing RS reception and measurement. Within the sensing measurement gap, sensing RS can be received and measured for sensing purposes. The configuration of the sensing measurement includes at least one of the following: the sensing measurement gap's ID, type, length, period, offset, and timing advance.

[0058] The sensing measurement gap is configured by the base station, pre-configured, or determined by the UE. The sensing RS can receive and measure data within or outside the sensing measurement gap.

[0059] In one example, co-frequency sensing RSs and inter-frequency sensing RSs can be defined for sensing RSs from multiple base stations. A sensing RS can be a co-frequency sensing RS if it meets one or more conditions. Otherwise, a sensing RS can be an inter-frequency sensing RS. Furthermore, a sensing RS can be an inter-frequency sensing RS if it does not meet one or more of the following conditions.

[0060] Conditions may include: the center frequency of the sensing RS is the same as the center frequency of the serving cell's SSB, and the subcarrier spacing (SCS) of the sensing RS is the same as the SSB's SCS. If the bandwidth of the co-channel sensing RS is within the active BWP, then the co-channel sensing RS can perform reception and measurement outside the sensing measurement gap. In some arrangements, if the bandwidth of the co-channel sensing RS is not within the active BWP, but the active BWP is the initial BWP, then the co-channel sensing RS can perform reception and measurement outside the sensing measurement gap. Otherwise, the co-channel sensing RS can perform reception and measurement within the sensing measurement gap. That is, when the bandwidth of the co-channel sensing RS exceeds the active BWP, and / or the active BWP is not the initial BWP, the co-channel sensing RS can perform reception and measurement within the sensing measurement gap.

[0061] Inter-frequency sensing RS can receive and measure within the sensing measurement gap. In some arrangements, inter-frequency sensing RS can measure either within or outside the sensing measurement gap. In some arrangements, inter-frequency sensing RS can receive and measure outside the sensing measurement window if one or more conditions are met. Otherwise, inter-frequency sensing RS can receive and measure within the sensing measurement window. This means that if one or more conditions are not met, inter-frequency sensing RS can receive and measure within the sensing measurement window.

[0062] Conditions may include that network 110 can be configured to indicate that inter-frequency sensing RS will be received outside the sensing measurement gap. For example, the indicator is 1 bit and is configured by BS 102 or LMF / SF. Conditions may also include that receiving UE 104 can support the ability to receive and measure inter-frequency sensing RS outside the sensing measurement gap, and that the bandwidth of the inter-frequency sensing RS is within the active BWP.

[0063] In the second example, the sensing RS can receive and measure either inside or outside the sensing measurement gap. If one or more conditions are met, the sensing RS can receive and measure outside the sensing measurement gap. Otherwise, the sensing RS receives and measures inside the sensing measurement gap. This means that if one or more conditions are not met, the sensing RS receives and measures inside the sensing measurement gap.

[0064] Conditions may include a network configuration indicator that will receive inter-frequency sensing RS outside the sensing measurement gap. For example, the indicator is 1 bit and is configured by BS 102 or LMF / SF. Conditions may also include that the bandwidth of the sensing RS is within the active BWP and that the receiving UE 104 can support the ability to receive and measure sensing RS outside the sensing measurement gap.

[0065] Solution 2: Sensing and RRM measurement / location share the same measurements In current communication systems, measurement gaps for RRM measurements and location measurements are configured. For ISAC systems, sensing RSs can be received and measured within the currently configured measurement gaps. Furthermore, sensing RSs and Synchronization Signal Block (SSB) / Channel State Information RSs (CSI-RS) can be received within the same configured measurement gaps. Sensing RSs and Location RSs (PRS) can also be received within the same configured measurement gaps. In some arrangements, sensing RSs, SSB / CSI-RSs, and PRSs can be received within the same configured measurement gaps. Furthermore, reception of two or more RSs can share the same configured measurement gaps. Additionally, networks (e.g., BS / LMF / SF) can be configured with the same measurement gaps for receiving at least two or more RSs.

[0066] Measurement gap sharing refers to dividing a measurement gap into time slots to receive different RSs. There are two schemes for two or more RS measurements to share the same measurement gap. One scheme is gap sharing that repeats every measurement gap, and the other is gap sharing within the length of the measurement gap. The configuration of measurement gap sharing can include the type of measurement gap sharing, where the type of measurement gap sharing indicates the type of measurement gap sharing. The measurement gap sharing type can be either repeating every measurement gap or per measurement gap length. Measurement gap sharing that repeats every measurement gap means using measurement gaps of different periods to receive different RSs. Measurement gap sharing per measurement gap length can indicate using different times within a measurement gap period to receive different RSs.

[0067] The measurement gap sharing configuration may also include an indicator that indicates the joint encoding for the time portion of measuring different RS. If the measurement gap sharing type is repeatable per measurement gap, the indicator indicates the joint encoding for the periodic portion of different RS measurements. If the measurement gap sharing type is per measurement gap length, the indicator indicates the joint encoding for the time portion of different RS measurements within the measurement period.

[0068] For example, if sensing measurements, RRM measurements, and positioning measurements share a measurement gap, and if the measurement gap sharing type is repeated per measurement gap, then the value of the joint encoding indicator and the corresponding periodic portion for each RS measurement are specified. In this case, if the value of the joint encoding indicator is 011, the shared portion for each RS measurement is as follows: Figure 3 As shown.

[0069] For example, if sensing measurements, RRM measurements, and positioning measurements share a measurement gap, and if the measurement gap sharing type is no measurement gap length, then the value of the joint encoding indicator and the corresponding time portion of each RS measurement within a measurement gap length are as follows: Figure 4As shown. For example, if the value of the joint encoding indicator is 011, the shared portion of each RS measurement within a measurement gap length is as follows: Figure 5 As shown.

[0070] Example 3: Measurement of Sensing RS for Neighboring Cells For sensing purposes, the receiving UE 104 can receive and measure multiple sensing RSs from multiple transmitting BS 102s. In some arrangements, the sensing RSs from certain neighboring base stations 102 may be weak, and the quality of sensing measurements from these neighboring base stations may be below the optimal baseline. Therefore, to save power consumption of the receiving UE 104, the UE 104 can measure the sensing RSs of cells with strong signal quality, but not the sensing RSs of cells with weak signal quality.

[0071] During the sensing process, the receiving UE 104 can receive and measure the sensed RS from the serving cell. In some arrangements, for sensed RS from neighboring cells, the receiving UE 104 can receive and measure the sensed RS from neighboring cells with strong measurement signal quality; both methods can yield satisfactory sensing measurement results and save power. In this embodiment, several solutions are provided to help the UE determine whether to receive and measure the sensed RS from neighboring BSs.

[0072] Solution 1: Sensing is assisted by the S standard selected by the cell.

[0073] During mobility management, UE 104 needs to measure the RRM (Resonance Management) values ​​of neighboring cells. If the RRM value of a neighboring cell meets the S criterion, then that neighboring cell is considered a candidate cell with strong signal quality. Therefore, the perceived RS (Resonance Range) of these candidate cells with strong signal quality can be considered strong for the receiving UE 104. The receiving UE 104 only receives and measures the perceived RS from the serving cell and neighboring cells whose RRM values ​​meet the S criterion.

[0074] Solution 2: RRM measurement is used as a sensing measurement.

[0075] In the mobility management procedure, UE 104 measures SSB / CSI-RS to obtain RRM measurement values. To conserve energy, the UE can report RRM measurement values ​​that meet certain conditions to the network 110 (e.g., LMF / SF) used for awareness purposes. These conditions can be configured by LMF / SF or BS 102, or pre-configured, or determined by UE 104. These conditions can be one or more thresholds (e.g., RSRP threshold, RSRQ threshold, SINR threshold), ranges (e.g., RSRP range, RSRQ range, SINR range), or threshold pairs (e.g., RSRP threshold pair with minimum and maximum RSRP thresholds, RSRQ threshold pair with minimum and maximum RSRQ thresholds, SINR threshold pair with minimum and maximum SINR thresholds).

[0076] Solution 3: Configure thresholds / ranges to evaluate cell RRM measurements and previous sensing measurements.

[0077] During mobility management, UE 104 can measure the RRM (Recognition, Response, and Management) values ​​of a cell to indicate the signal quality between the cell and UE 104. To obtain satisfactory perceived measurements, two thresholds / ranges can be configured. One threshold / range evaluates the RRM measurements to select neighboring cells with strong signal quality; the other threshold / range evaluates previously obtained perceived measurements to select neighboring cells with a perceived line-of-sight (LOS) path or a strong perceived signal link.

[0078] The thresholds / ranges of RRM measurements may include one or more of the following: RSRP threshold, RSRQ threshold, SINR threshold, RSRP range, RSRQ range, SINR range, several RSRP thresholds with a minimum RSRP threshold and a maximum RSRP threshold, an RSRQ threshold pair with a minimum RSRQ threshold and a maximum RSRQ threshold, a SINR threshold pair with a minimum SINR threshold and a maximum SINR threshold, and the ID of the neighboring base station 102 / TRP / cell.

[0079] The thresholds / ranges of the previous sensing measurements may include RSRP threshold, RSRQ threshold, detection time threshold, distance threshold, angle threshold, Doppler threshold, RSRP range, RSRQ range, detection time range, distance range, angle range, Doppler range, a pair of RSRP thresholds with a minimum RSRP threshold and a maximum RSRP threshold, a pair of RSRQ thresholds with a minimum RSRQ threshold and a maximum RSRQ threshold, a pair of detection time thresholds with a minimum detection time threshold and a maximum detection time threshold, a pair of distance thresholds with a minimum distance threshold and a maximum distance threshold, a pair of angle thresholds with a minimum angle threshold and a maximum angle threshold, and / or a pair of Doppler thresholds with a minimum Doppler threshold and a maximum Doppler threshold, as well as the ID of the neighboring base station 102 / TRP / cell.

[0080] Previous sensing measurements can be the most recent sensing measurement obtained and can include RSRP, RSRQ, detection time, time of arrival (TOA), distance between the sending BS / UE and / or receiving UE / BS, angle of arrival (AOA), and Doppler. Furthermore, the thresholds / ranges for RRM measurements and previous sensing measurements can be configured by BS 102, or by LMF / SF, or pre-configured, or determined by UE 104.

[0081] If one or more conditions are met, UE 104 may receive and measure the perceived RS of the corresponding neighboring BS 102 / cell / TRP. Otherwise, UE may not measure the perceived RS of the corresponding neighboring BS 102 / cell / TRP. Conditions may include: the RRM measurement value of the corresponding neighboring base station 102 / cell / TRP is greater than or equal to a threshold of the RRM measurement value, or the RRM measurement value of the corresponding neighboring base station 102 / cell / TRP falls within the range of the RRM measurement value. Conditions may also include: the perceived measurement value of the corresponding neighboring base station 102 / cell / TRP acquired at the previous sensing time meets the threshold / range of the previous perceived measurement value.

[0082] Solution 4: Configure sensing measurement thresholds / ranges to determine the measurement of sensing RS and RRM values.

[0083] When the sensing measurement value of the neighboring base station 102 / TRP / cell does not meet the conditions, the receiving UE 102 may not receive or measure the sensing RS of the neighboring base station 102 / TRP / cell. To determine whether the sensing measurement value meets the conditions, a threshold / range for the sensing measurement value can be configured to evaluate the quality of the sensing measurement value.

[0084] The thresholds / ranges for sensing measurements may include at least one of the following: RSRP threshold, RSRQ threshold, detection time threshold, distance threshold, angle threshold, Doppler threshold, RSRP range, RSRQ range, detection time range, distance range, angle range, Doppler range, RSRP threshold pair with minimum and maximum RSRP thresholds, RSRQ threshold pair with minimum and maximum RSRQ thresholds, detection time threshold pair with minimum and maximum detection time thresholds, distance threshold pair with minimum and maximum distance thresholds, angle threshold pair with minimum and maximum angle thresholds, Doppler threshold pair with minimum and maximum Doppler thresholds, and the ID of neighboring base station 102 / TRP / cell. The thresholds / ranges for sensing measurements may be configured by BS 102, or by LMF / SF, or pre-configured, or determined by UE 104.

[0085] When UE 104 measures the perceived RS of neighboring BS 102 / TRP / cell and obtains the corresponding perceived measurement value, if the perceived measurement value does not meet the perceived measurement threshold / range, UE 104 may not measure the perceived RS of the corresponding BS 102 / TRP / cell for the next duration. In some arrangements, if the perceived measurement value does not meet the perceived measurement threshold / range, UE 104 may not measure the RRM measurement value of the corresponding BS 102 / TRP / cell for the next duration.

[0086] The next duration can be configured by BS 102, or by LMF / SF, or pre-configured, or determined by UE 104.

[0087] Example 4: Selection of transmitters and receivers for sensing purposes In a sensing scenario, there are multiple transmitting base stations 102 and multiple receiving UEs 104. The multiple transmitting base stations 102 can transmit sensing RS, and the multiple receiving UEs 104 can receive and measure multiple sensing RS from the multiple transmitting base stations 102. For a receiving UE, one or more sensing RS from a neighboring base station (BS) may be weak. For a transmitting base station (BS), one or more non-serving UEs 104 may not receive sensing RS with strong signal quality. Therefore, how to select the transmitting base station 102 and the receiving UE for sensing purposes is a problem. In this embodiment, some solutions are provided for selecting the transmitting base station 102 and the receiving UE 104.

[0088] In the communication system, UE 104 can measure the SSB / CSI-RS of the serving cell and neighboring cells to obtain RRM measurement values. Therefore, for the sensing function in the ISAC system, the transmitting base station 102 can be selected based on the RRM measurement values.

[0089] Figure 5 The selection process for the sensing transmitter is illustrated, where the sensing transmitter is determined by the sensing receiving UE 104. In one example, UE 104 may determine the sensing transmitting BS 102 based on RRM measurements, and this recommendation may be made by UE 104 or LMF / SF 504. One or more thresholds / ranges for RRM measurements can be configured for UE 104. The thresholds / ranges for RRM measurements can evaluate the quality of the RRM measurements. The thresholds / ranges for RRM measurements may include RSRP thresholds, RSRQ thresholds, SINR thresholds, RSRP ranges, RSRQ ranges, SINR ranges, RSRP threshold pairs with minimum and maximum RSRP thresholds, RSRQ threshold pairs with minimum and maximum RSRQ thresholds, and SINR threshold pairs with minimum and maximum SINR thresholds. The thresholds / ranges for RRM measurements may be configured by LMF / SF 504, configured by BS 102, pre-configured, or determined by UE 104.

[0090] When UE 104 measures RRM measurements, UE 104 can determine which BS 102s can serve as sensing transmission BS 102s based on the RRM measurements. A BS 102 that meets one or more conditions can have a strong signal link with UE 104, and the corresponding BS 102 can be selected as a candidate sensing transmission BS 102. Conditions may include one or more of the following: the RRM measurement value of the BS 102 can be greater than or equal to a threshold / range of RRM measurements; N BS 102s have N optimal RRM measurements, where the RRM measurements of the BS 102s are sorted according to cell measurements and beam measurements. N can be configured by LMF / SF 504, configured by the serving BS 102, pre-configured, or determined by UE 104.

[0091] When UE 104 determines a candidate sensing transmission BS 102, UE 104 may send or recommend candidate sensing transmission BS 102 related information to LMF / SF 504. The candidate sensing transmission BS 102 related information includes at least the candidate sensing transmission BS 102 / TRP ID. UE 104 may send or recommend candidate sensing transmission BS 102 related information to LMF / SF 504 for each sensed service.

[0092] In some configurations, UE 104 can send or recommend candidate sensing information to LMF / SF 504 for each sensing area or each sensing target.

[0093] When the LMF / SF 504 receives information related to the candidate sensing transmission BS 102, the LMF / SF 504 can send a sensing request to the candidate sensing transmission base station BS 102. In some arrangements, when the LMF / SF 504 receives information related to the candidate sensing transmission BS 102, the LMF / SF 504 can prioritize the candidate sensing transmission BS 102 as the sensing transmission BS 102. The LMF / SF 504 can further select the sensing transmission BS 102 from the candidate sensing transmission BS 102. The LMF / SF 504 can select the sensing transmission BS 102 based on one or more factors. These factors may include the distance between the BS 102 and the sensing target, and one or more factors in the area where the BS 102 is located.

[0094] When LMF / SF 504 determines the sensing transmission BS 102 based on RRM measurement values ​​in step 506, UE 104 can send sensing requests to these sensing transmission BS 102 in step 508.

[0095] In the second example, based on RRM measurements, LMF / SF 504 determines that the sensing transmission BS 102 is sent. Figure 6 The selection process for the sensing transmitter is illustrated, where the sensing transmitter is determined by LMF / SF 504. When UE 104 measures an RRM measurement value, in step 602, UE 104 can send RRM measurement-related information to LMF / SF 504. The RRM measurement-related information provided by UE 104 to LMF / SF 504 includes at least one of the RRM measurement value and the ID of the BS 102 corresponding to the RRM measurement value.

[0096] In step 604, LMF / SF 504 can determine the sensing transmission BS 102 based on RRM measurement-related information. A BS that meets one or more conditions can have a strong signal link with UE 104, and thus the corresponding BS 102 can be selected as the sensing transmission BS 102. This condition can include one or more of the following: a BS 102 whose RRM measurement value is greater than or equal to a threshold / range of RRM measurement values; N BS 102s with N optimal RRM measurement values, where the RRM measurement values ​​of the BS 102 are sorted according to cell measurement values ​​and beam measurement values, N is configured by LMF / SF 504, or pre-configured, or determined by UE 104; the distance between the BS 102 and the sensing target is less than or equal to a distance threshold; and / or the area where the BS 102 is located. When LMF / SF 504 determines the sensing transmission BS 102, LMF / SF can send a sensing request to that sensing transmission BS 102.

[0097] In the third example, the sensing sender BS 102 can be determined by the service BS 102 and recommended by the service BS 102 to LMF / SF 504. Figure 7 The process of selecting a sensing transmitter is shown, where the sensing transmitter is determined by service BS 102.

[0098] In step 702, UE 104 measures the RRM measurement value and may send RRM measurement-related information to the serving BS 102. The RRM measurement-related information provided by UE 104 to the serving BS 102 includes the RRM measurement value and the ID of the BS 102 corresponding to the RRM measurement value. In step 704, the serving BS 102 determines the sensing transmission BS 102 based on the RRM measurement-related information. A BS that meets one or more conditions may have a strong signal link with UE 104, and thus the corresponding BS 102 can be selected as the sensing transmission BS 102. This condition can include one or more of the following: a BS 102 whose RRM measurement value is greater than or equal to a threshold / range of RRM measurement values; N BS 102s with N optimal RRM measurement values, where the RRM measurement values ​​of BS 102s are sorted according to cell measurement values ​​and beam measurement values, and N is configured by LMF / SF 504, or pre-configured, or determined by UE 104; the distance between BS 102 and the sensed target is less than or equal to a distance threshold; and / or the area where BS 102 is located. When Service BS 102 determines a candidate sensing sending BS 102, Service BS 102 sends / recommends relevant information about the candidate sensing sending BS 102 to LMF / SF 504. The relevant information about the candidate sensing sending BS 102 may include at least the ID of the candidate sensing sending BS 102.

[0099] In step 706, the serving BS 102 may send / recommend candidate sensing information to the LMF / SF 504 for each sensed service. In some arrangements, the serving BS 102 may send / recommend candidate sensing information to the LMF / SF 504 for each sensed area or each sensed target.

[0100] When the LMF / SF 504 receives information related to the candidate sensing transmission BS 102, the LMF / SF 504 can send a sensing request to the candidate sensing transmission BS 102. In some arrangements, when the LMF / SF 504 receives information related to the candidate sensing transmission BS 102, the LMF / SF 504 can prioritize the candidate sensing transmission BS 102 as the sensing transmission BS 102. The LMF / SF 504 can further select the sensing transmission BS 102 from multiple candidate sensing transmission BS 102s. The LMF / SF 504 can select the sensing transmission BS 102 based on one or more factors. These factors may include the distance between the base station 102 and the sensing target, and the regional location of the BS 102.

[0101] In a communication system, for BS 102, multiple UEs 104 are measuring the RRM (Recovery Resource Management) values ​​of that base station 102. Therefore, for the sensing function in the ISAC system, the sensing receiving UE 104 can be selected based on the RRM measurement values. Two examples of sensing receiving UE 104 selection based on RRM measurement values ​​are described below.

[0102] In one example, the perceived receiving UE 104 can be determined by LMF / SF 504. Figure 8 The process of selecting a sensing receiver is illustrated, wherein the sensing receiver can be determined by LMF / SF 504. In step 802, UE 104 can measure an RRM measurement value, and UE 104 can send RRM measurement-related information to LMF / SF 504. The RRM measurement-related information provided by UE 104 to LMF / SF 504 includes at least one of the following: the RRM measurement value, the BS 102 ID corresponding to the RRM measurement value, and / or the UE 104 ID corresponding to the RRM measurement value. In step 804, LMF / SF 504 can receive RRM measurement-related information from multiple UEs 104 and can determine the sensing receiving UE 104 based on the RRM measurement value. UEs 104 that meet one or more conditions can have a strong signal link with the sensing transmitting BS 102, and thus the corresponding UE 104 can be selected as the sensing receiving UE 104. The conditions may include one or more of the following: the RRM measurement value of UE 104 is greater than or equal to the threshold / range of the RRM measurement value; N UE 104s have N optimal RRM measurement values, wherein the RRM measurement values ​​of UE 104 can be sorted according to cell measurement values ​​and beam measurement values; the distance between UE 104 and the sensing target is less than or equal to the distance threshold; and / or the area where UE 104 is located.

[0103] When the LMF / SF 504 identifies a sensing receiving UE 104, the LMF / SF provides sensing receiving UE 104-related information to that sensing sending BS 104. The sensing receiving UE 104-related information may include at least the sensing receiving UE 104 ID. Furthermore, the LMF / SF 504 provides sensing assistance information to these sensing receiving UEs 104.

[0104] In the second example, the perceived receiving UE 104 can be determined by the serving BS 102 and recommended by the serving BS 102 to the LMF / SF 504. Figure 9 The process of selecting a sensing receiver is illustrated, where the sensing receiver can be determined by the serving BS 102. In step 902, the LMF / SF 504 provides the sensing target or sensing area to the BS 102. Multiple UEs 104 can send RRM measurement-related information to the serving BS 102. The RRM measurement-related information provided by the UE 104 to the serving BS 102 may include the RRM measurement value, the BS 102 ID corresponding to the RRM measurement value, and / or the UE 104 ID.

[0105] The serving BS 102 determines the sensing receiving UE 104 within its coverage area based on RRM measurements. A UE 104 that meets one or more conditions can have a strong signal link with the sensing transmitting BS 102, thus the corresponding UE 104 can be selected as a candidate sensing receiving UE 104. Conditions may include one or more of the following: the RRM measurement of UE 104 is greater than or equal to a threshold / range of RRM measurements and / or N UE 104s have N optimal RRM measurements, where the RRM measurements of UE 104 can be sorted according to cell measurements and beam measurements, and N is configured by LMF / SF 504, or pre-configured, or determined by the serving BS 102. Conditions may include the distance between UE 104 and the sensing target being less than or equal to a distance threshold, and / or the area where UE 104 is located.

[0106] In step 904, the serving BS 102 determines the candidate sensing receiving UE 104 and sends / recommends the relevant information of the candidate sensing receiving UE 104 to the LMF / SF 504. The relevant information of the candidate sensing receiving UE 104 may include at least the candidate sensing receiving UE 104 ID. In step 906, the serving BS 102 may send / recommend the relevant information of the candidate sensing receiving UE 104 to the LMF / SF 504 for each sensed service. In some arrangements, the serving BS 102 may send / recommend the relevant information of the candidate sensing receiving UE 104 to the LMF / SF 504 for each sensed area or each sensed target.

[0107] When the LMF / SF 504 receives information related to candidate sensing receiving UEs 104, the LMF / SF 504 can provide sensing assistance information to these sensing receiving UEs 104. In some arrangements, the LMF / SF 504 can receive information related to candidate sensing receiving UEs 104 and can prioritize these candidate sensing receiving UEs 104 as sensing receiving UEs 104. The LMF / SF 504 can further select a sensing receiving UE 104 from the candidate sensing receiving UEs 104. The LMF / SF 504 can select a sensing receiving UE 104 based on one or more factors. These factors may include the distance between the UE 104 and the sensing target, and / or the area where the UE 104 is located. After the LMF / SF 504 determines the sensing receiving UE 104, the LMF / SF 502 can provide sensing assistance information to these sensing receiving UEs 104.

[0108] Example 5: Interactive signaling when sensing target / receiving UE 104 movement like Figure 10 As shown, in a sensing scenario, the sensing target and / or receiving UE 104 can move from the coverage area of ​​one BS 102 to the coverage area of ​​another BS 102. Figure 10 This is an example design of the interaction signaling when the sensing target / receiving UE 104 moves. In this embodiment, signaling when the sensing target / receiving UE 104 moves is designed and configured.

[0109] Based on the target's previous location, previous sensing area, and most recent sensing estimate, the LMF / SF 504 can predict the target's expected range at the next sensing time. The expected range can include the target's expected location and corresponding location uncertainty, the target's expected angle and corresponding angle uncertainty, the target's expected velocity and corresponding velocity uncertainty, and the target's expected Doppler effect and corresponding Doppler uncertainty. Therefore, the LMF / SF 504 can send a sensing request to the BS 102 located within the expected sensing area and can send sensing assistance information to the UE 104 located within the expected sensing area.

[0110] The expected sensing area can be determined based on absolute location (e.g., longitude, latitude, and altitude), and / or based on local location. The configuration of the local location can include a reference location, relative distance, and relative angle. For example, the reference location could be the expected location of the sensed target at the next sensing time, or it could be the location of a BS 102. Furthermore, the expected sensing area can be a list of BS 102s and / or a list of UE 104s. For example, the expected sensing area can include a list of BS 102s (indicated by a list of BS 102 IDs), and the expected sensing area can include a list of UE 104s (indicated by a list of UE 104 IDs). In some arrangements, the expected sensing area is configured by an LMF / SF 504, and the sensing request information can include a request for sensing RS transmission, the configuration of the sensing RS, and a request for SSB / CSI-RS transmission, wherein the request for SSB / CSI-RS transmission requests BS 102 to transmit SSB / CSI-RS to obtain RRM measurements to assist sensing. The sensing request information can include the configuration of the SSB / CSI-RS.

[0111] The sensing assistance information may include the ID of the BS 102 / TRP that successfully responded to the sensing request, the configuration of the sensing RS, the configuration of the SSB / CSI-RS, and / or the configuration for RRM measurements. In the ISAC system, UE 104 can receive and measure the sensing RS in both RRC_IDLE and RRC_INACTIVE states. When UE 104 performs a cell handover, to avoid the interruption of sensing services, UE 104 can maintain RRM measurement reporting and sensing measurement reporting during cell handover based on the Dual Activation Protocol Stack (DAPS).

[0112] Example 6: Configuring the priorities of the transmitter and receiver In a sensing scenario, when the sensing target and / or receiving UE 104 moves, the transmission BS 102 may change accordingly. In this case, the LMF / SF 504 can select the transmission BS 102 based on its reselection priority, prioritizing the BS 102 with the higher reselection priority as the sensing transmission BS 102. Furthermore, sensing priorities can be configured for BS 102 and UE 104 to assist in sensing services.

[0113] Configure the awareness priority of the BS Sensing priority can be configured for BS 102. In some arrangements, sensing priority can be configured by LMF / SF 504, and can be pre-configured or determined by BS 102. In some arrangements, the sensing priority of BS 102 can be related to RRM measurements. The better the quality of the RRM measurements of BS 102, the higher the sensing priority of BS 102. In some arrangements, the sensing priority of BS 102 can be associated with the relative position between BS 102 and the sensed target, or with the relative position between BS 102 and the sensed area.

[0114] In some arrangements, the perception priority of BS 102 can be associated with the reselection priority of BS 102. The perception assistance information provided by LMF / SF 504 to UE 104 includes the perception priority of the perception transmitting BS 102. In some arrangements, UE 104 can receive and measure perception RS from N perception transmitting BS 102s based on the perception priority of BS 102 and the capabilities of UE 104. Furthermore, UE 104 can report the perception measurements and / or perception results from the N perception transmitting BS 102s to LMF / SF 504. In some arrangements, N can be configured by LMF / SF 504. Alternatively, N can be pre-configured. Alternatively, N can be determined by UE 104. Alternatively, N can be configured by BS 102.

[0115] In some configurations, UE 104 can receive and measure perceived RS from all perceived transmitting BS 102s based on its capabilities. Furthermore, UE 104 can report perceived measurements and / or perceived results from only N perceived transmitting BS 102s to LMF / SF 504. The N perceived transmitting BS 102s can be selected based on their perceived priority and the capabilities of UE 104. N can be configured by LMF / SF 504, or N can be pre-configured, or N can be determined by UE 104, or N can be configured by BS 102.

[0116] Configure the perception priority of UE 104 Perception priority can be configured for UE 104. In some arrangements, perception priority can be configured by LMF / SF 504 or BS 102. Alternatively, perception priority can be pre-configured. Or, perception priority can be determined by UE 104. In some arrangements, UE 104's perception priority can be associated with RRM measurements. For transmitting BS 102, the better the quality of UE 104's RRM measurements, the higher UE 104's perception priority. In some arrangements, UE 104's perception priority can be associated with the relative position between UE 104 and the perceived target, or with the relative position between UE 104 and the perceived area.

[0117] UE 104 with lower perception priority may not receive or measure perception RS. LMF / SF 504 can select UE 104 with lower perception priority as candidate perception UE 104. In some arrangements, LMF / SF 504 may not provide perception assistance information to candidate perception UE 104, and candidate perception UE 104 may not measure perception RS. In some arrangements that require higher perception accuracy or more UE 104 for cooperative perception, LMF / SF 504 may treat some or all of the candidate perception UE 104 as perception UE 104 and provide perception assistance information to these perception UE 104.

[0118] Alternatively, the sensing receiving UE 104 can measure the sensing RS and report the sensing measurement values / results to the LMF / SF 504. Furthermore, in reporting sensing measurement values / results, the sensing receiving UE 104 can report its sensing priority. The LMF / SF 504 can process sensing measurement values / results from UE 104 with a higher sensing priority, but does not process sensing measurement values / results from UE 104 with a lower sensing priority.

[0119] It should be understood that one or more features from the above implementation examples are not specific to any particular implementation example, but can be combined in any way (e.g., with any priority and / or order, simultaneously or otherwise).

[0120] Figure 11 A flowchart of a communication-assisted sensing method 1100 integrating sensing is shown. Method 1100 can be combined with the methods described herein. Figures 1 to 10The method 1100 may be performed by any one or more of the components and devices described in detail below. Generally, in some embodiments, method 1100 may be performed by a wireless communication node (e.g., a base station (BS) or a radio access network (RAN) node). Depending on the embodiment, additional, fewer, or different operations may be performed in method 1100. At least one aspect of these operations relates to a system, method, apparatus, or computer-readable medium.

[0121] A wireless communication method includes: a transmitting node of a mobility management-assisted integrated sensing and communication (ISAC) system transmitting a sensing reference signal (RS); a receiving node of the ISAC system measuring the sensing RS; and a wireless communication device or network node of the ISAC system determining the sensing configuration of a sensing receiver based on Radio Resource Management (RRM) measurements. The receiving node can select the transmitting node based on the RRM measurements and certain rules. The receiving node can recommend the selected transmitting node to the network node for each sensing service, each sensing area, or each sensing target.

[0122] RRM measurements meeting certain conditions can be reported by the receiving node to the network node used for sensing measurements. The sending and receiving nodes can be determined by the network node based on the RRM measurements. The sending and receiving nodes can be selected by the serving base station based on the RRM measurements. The selected sending and receiving nodes can be recommended to the network node by the serving base station. The selected sending and receiving nodes are recommended to the network node by the serving base station for each sensing service, each sensing area, or each sensing target.

[0123] If certain conditions are met, the receiving node measures the inter-frequency sensing RS outside the measurement gap. Otherwise, the receiving node measures the inter-frequency sensing RS inside the measurement gap. The conditions include at least one or more of the following: an indicator is configured indicating that the inter-frequency sensing RS can be measured outside the sensing measurement gap, and / or the receiving node supports the ability to measure the inter-frequency sensing RS outside the sensing measurement gap, and / or the bandwidth of the inter-frequency sensing RS is within the active bandwidth part (BWP).

[0124] If the bandwidth of the co-channel sensing RS is within the active bandwidth portion (BWP), the receiving node also measures the co-channel sensing RS outside the measurement gap. Otherwise, the receiving node measures the co-channel sensing RS within the measurement gap. The receiving node also measures only the sensing RS transmitted by the transmitting node that satisfies the S criterion. The receiving node also measures only the sensing RS transmitted by the transmitting node whose RRM measurement and either or both of the previous sensing measurement satisfy the corresponding threshold / range. If the sensing measurement does not satisfy the sensing threshold / range, the receiving node may not measure the sensing RS and RRM measurement for the next duration.

[0125] Wireless communication equipment can be a transmitting node or a receiving node. The sensing RS can be a Synchronization Signal Block (SSB), a Channel State Information-Reference Signal (CSI-RS), a Positioning Reference Signal (PRS), a unified RS, or a sensing-specific RS. In some arrangements, if the sensing RS can be an SSB, the SSB can be measured only for sensing purposes within the SSB Measurement Timing Configuration (SMTC). The sensing RS can be a co-frequency sensing RS if its center frequency is the same as the center frequency of the serving cell's SSB and its sub-carrier space (SCS) is the same as the SSB's SCS. Otherwise, the sensing RS can be a different-frequency sensing RS. The sensing configuration includes measurement gaps, which can be specific measurement gaps for sensing RS measurements or measurement gaps shared with other RS ​​measurements. The sensing configuration includes thresholds / ranges for evaluating RRM measurements and thresholds / ranges for evaluating previous sensing measurements. The sensing configuration can include sensing thresholds / ranges for evaluating sensing measurements. The perception configuration may also include sending nodes and receiving nodes. The perception configuration may include the expected perception area when the perceived target moves. The expected perception area can be an absolute location, a local location, a list of sending nodes, or a list of receiving nodes.

[0126] In some arrangements, if the measurement gaps can be shared, the sharing configuration includes a measurement gap sharing scheme. The configuration of the measurement gap sharing scheme includes at least one or more of the following: a measurement gap sharing type, and an indicator indicating the joint encoding used to measure the time portions of different RSs.

[0127] In some deployments, if the sensing RS can be an SSB, the sensing configuration includes two or more sensing windows. One sensing window can be a primary sensing window associated with a primary SMTC, and the other sensing window can be a secondary sensing window associated with a secondary SMTC. The primary sensing window configuration includes at least one or more of the following: duration, period, start time-related information, and / or reference time. The secondary sensing window configuration includes at least one or more of the following: cell ID, duration, period, start time-related information, and / or reference time. In some deployments, if the sensing RS can be an SSB, the sensing configuration includes one or more Sensing Measurement Timing Configurations (Sensing-MTCs). The Sensing-MTC configuration includes at least one or more of the following: duration, period, offset, and / or reference time. The SSB is used for sensing purposes only within the Sensing-MTC.

[0128] In some configurations, if the sensing RS can be a CSI-RS, the sensing configuration includes one or more Sensing-CSI-MTCs. The Sensing-CSI-MTC configuration includes at least one or more of the following: duration, period, offset, and / or reference time. The CSI-RS is used for sensing purposes only within the Sensing-CSI-MTC. The next duration can be configured by the network node or base station, or it can be pre-configured. The sensing configuration includes sensing request information provided by the network node to a transmitting node located in the intended sensing area, and sensing assistance information provided by the network node to a receiving node located in the intended sensing area. The sensing request information includes at least one or more of the following: a request for sensing RS transmission, the configuration of the sensing RS, a request for SSB / CSI-RS transmission, or the configuration of the SSB / CSI-RS. The sensing assistance information includes at least one or more of the following: the ID information of the transmitting node that successfully responded to the sensing request, the configuration of the sensing RS, the configuration of the SSB / CSI-RS, or the configuration for RRM measurements.

[0129] In some deployments, the receiving node can measure the sensed RS in both RRC_IDLE and RRC_INACTIVE states. The receiving node can report sensed measurements during cell handover. The receiving node measures the sensed RS transmitted by N sending nodes based on the sending node's sensed priority. The receiving node reports the sensed measurements of N sending nodes based on the sending node's sensed priority. Receiver nodes with low sensed priority do not measure sensed RS. In some deployments, the sensed configuration includes the sensed priority of the sending node and the sensed priority of the receiving node. The sensed priority of the sending node and the sensed priority of the receiving node can be associated with RRM measurements and with the relative position between the sending / receiving node and the sensed target. The sensed priority of the sending node can also be associated with the sending node's reselection priority.

[0130] While various embodiments of the present solution have been described above, it should be understood that these embodiments are presented by way of example only and not as limitations. Similarly, various diagrams may depict exemplary architectures or configurations provided to enable those skilled in the art to understand exemplary features and functionality of the present solution. However, those skilled in the art will understand that the solution is not limited to the illustrated exemplary architectures or configurations, but can be implemented using various alternative architectures and configurations. Furthermore, as those skilled in the art will understand, one or more features of some embodiments may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of this disclosure should not be limited to any of the exemplary embodiments described above.

[0131] It should also be understood that any reference to elements in this document using names such as "first," "second," etc., generally does not restrict the number or order of these elements. Rather, these names may simply be used in this document to facilitate the distinction between two or more elements or multiple instances of an element. Therefore, referring to the first element and the second element does not imply that only two elements can be used, or that the first element must precede the second element in some way.

[0132] Furthermore, those skilled in the art will understand that information and signals can be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols referenced in the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.

[0133] Those skilled in the art will further understand that any of the various illustrative logic blocks, modules, processors, means, circuits, methods, and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., digital implementation, analog implementation, or a combination of both), firmware, various forms of program or design code in conjunction with instructions (which may be referred to herein as "software" or "software module"), or any combination of these technologies. To clearly illustrate this interchangeability of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these technologies, depends on the specific application and the design constraints imposed on the system as a whole. Those skilled in the art can implement the described functions in various ways for each specific application, but such implementation will not depart from the scope of this disclosure.

[0134] Furthermore, those skilled in the art will understand that the various illustrative logic blocks, modules, devices, components, and circuits described herein may be implemented within or executed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, or any combination thereof. Logic blocks, modules, and circuits may also include antennas and / or transceivers for communication with various components within a network or device. A general-purpose processor may be a microprocessor, but alternatively, it may be any conventional processor, controller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors coupled with a DSP core, or any other suitable configuration for performing the functions described herein.

[0135] If these functions are implemented in software, they can be stored as one or more instructions or code on a computer-readable medium. Therefore, the steps of the methods or algorithms disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media include computer storage media and communication media, with communication media including any medium that enables the transfer of computer programs or code from one location to another. Storage media can be any available medium accessible to a computer. For example, but not limited to, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disc storage devices, magnetic disk storage devices or other magnetic storage devices, or any other medium that can be used to store the required program code in the form of instructions or data structures and is accessible to a computer.

[0136] In this document, the term "module" as used herein refers to software, firmware, hardware, and any combination of such elements for performing the associated functions described herein. Furthermore, for purposes of discussion, various modules are described as separate modules; however, as will be apparent to those skilled in the art, two or more modules may be combined to form a single module that performs the associated functions according to embodiments of this solution.

[0137] Furthermore, memory or other storage devices and communication components may be used in embodiments of this solution. It should be understood that, for clarity, the above description refers to embodiments of this solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality among different functional units, processing logic elements, or domains can be used without diminishing the effectiveness of this solution. For example, functions shown to be performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, references to specific functional units are merely references to appropriate means of providing said functionality and do not represent a strict logical or physical structure or organization.

[0138] Various modifications to the embodiments described herein will be apparent to those skilled in the art, and the general principles defined herein can be applied to other embodiments without departing from the scope of this disclosure. Therefore, this disclosure is not intended to be limited to the embodiments shown herein, but is to be given the broadest scope consistent with the novel features and principles disclosed herein as set forth in the appended claims.

Claims

1. A wireless communication method, comprising: The transmitting node of the mobility management-assisted sensing integration (ISAC) system transmits sensing reference signals (RS); The sensing RS is measured by the receiving node of the ISAC system assisted by the mobility management; and The wireless communication devices or network nodes of the ISAC system determine the sensing configuration of the sensing receiver based on radio resource management (RRM) measurements.

2. The wireless communication method as described in claim 1, wherein, The wireless communication device can be either the transmitting node or the receiving node.

3. The wireless communication method as described in claim 1, wherein, The sensing RS can be a synchronization signal block (SSB), a channel state information reference signal (CSI-RS), a positioning reference signal (PRS), a unified RS, or a sensing-specific RS.

4. The wireless communication method as described in claim 1, wherein, If the sensing RS is an SSB, the SSB is measured only for sensing purposes within the SSB Measurement Timing Configuration (SMTC).

5. The wireless communication method as described in claim 1, wherein, If the sensing RS is an SSB, the sensing configuration includes two or more sensing windows, one of which is a primary sensing window associated with the primary SMTC, and the other is a secondary sensing window associated with the secondary SMTC.

6. The wireless communication method as described in claim 5, wherein, The configuration of the main sensing window includes at least one or more of the following: duration, period, start time related information and / or reference time.

7. The wireless communication method as described in claim 5, wherein, The configuration of the auxiliary sensing window includes at least one or more of the following: cell ID, duration, period, start time related information and / or reference time.

8. The wireless communication method as described in claim 1, wherein, If the sensing RS is an SSB, the sensing configuration includes one or more sensing measurement timing configurations (Sensing-MTC).

9. The wireless communication method as described in claim 8, wherein, The Sensing-MTC configuration includes at least one or more of the following: duration, period, offset, and / or reference time.

10. The wireless communication method as described in claim 9, wherein, The SSB is used solely for sensing purposes within the Sensing-MTC for measurement.

11. The wireless communication method as described in claim 1, wherein, If the sensing RS is a CSI-RS, the sensing configuration includes one or more Sensing-CSI-MTCs.

12. The wireless communication method as described in claim 11, wherein, The Sensing-CSI-MTC configuration includes at least one or more of the following: duration, period, offset, and / or reference time.

13. The wireless communication method as described in claim 12, wherein, The CSI-RS is used for sensing purposes only within the Sensing-CSI-MTC.

14. The wireless communication method as described in claim 1, wherein, If the center frequency of the sensing RS is the same as the center frequency of the SSB of the serving cell, and the subcarrier spacing (SCS) of the sensing RS is the same as the SSB of the serving cell, then the sensing RS is a co-frequency sensing RS; otherwise, the sensing RS is a hetero-frequency sensing RS.

15. The wireless communication method as described in claim 1, wherein, The sensing configuration includes a measurement gap, which can be a specific measurement gap for sensing RS measurements, or a measurement gap shared with other RS ​​measurements.

16. The wireless communication method as described in claim 14, wherein, If the bandwidth of the same-frequency sensing RS is within the active bandwidth portion (BWP), the receiving node measures the same-frequency sensing RS outside the measurement gap; otherwise, the receiving node measures the same-frequency sensing RS within the measurement gap.

17. The wireless communication method as described in claim 14, wherein, If certain conditions are met, the receiving node measures the inter-frequency sensing RS outside the measurement gap; otherwise, the receiving node measures the inter-frequency sensing RS inside the measurement gap.

18. The wireless communication method as described in claim 17, wherein, The conditions include at least one or more of the following: an indicator is configured to indicate that the inter-frequency sensing RS can be measured outside the sensing measurement gap, and / or the receiving node supports the ability to measure the inter-frequency sensing RS outside the sensing measurement gap, and / or the bandwidth of the inter-frequency sensing RS is within the active BWP.

19. The wireless communication method as described in claim 15, wherein, If the measurement gap is a shared measurement gap, the shared configuration includes a measurement gap sharing scheme.

20. The wireless communication method as described in claim 19, wherein, The configuration of the measurement gap sharing scheme includes at least one or more of the following: measurement gap sharing type, and an indicator indicating the joint encoding for measuring the time portion of different RS.

21. The wireless communication method as described in claim 1, wherein, The receiving node only measures the sensed RS transmitted by the sending node that satisfies the S criterion.

22. The wireless communication method as described in claim 1, wherein, RRM measurement values ​​that meet certain conditions can be reported by the receiving node to the network node used for sensing measurements.

23. The wireless communication method as described in claim 1, wherein, The perception configuration includes a threshold / range for evaluating RRM measurements and a threshold / range for evaluating previous perception measurements.

24. The wireless communication method as described in claim 1, wherein, The receiving node only measures the sensing RS transmitted by the transmitting node that satisfies the corresponding threshold / range by either or both of its RRM measurement and previous sensing measurement.

25. The wireless communication method as described in claim 1, wherein, The sensing configuration includes sensing thresholds / ranges for evaluating sensing measurements.

26. The wireless communication method as described in claim 1, wherein, If the sensing measurement does not meet the sensing threshold / range, the receiving node will not measure the sensing RS and the RRM measurement values ​​for the next duration.

27. The wireless communication method as described in claim 1, wherein, The next duration can be configured by the network node or base station, or it can be pre-configured.

28. The wireless communication method as described in claim 1, wherein, The sensing configuration includes a sending node and a receiving node.

29. The wireless communication method as described in claim 28, wherein, The sending node is selected by the receiving node based on the RRM measurement value and some rules.

30. The wireless communication method as described in claim 29, wherein, The selected sending node is recommended to the network node by the receiving node for each sensed service, each sensed area, or each sensed target.

31. The wireless communication method as described in claim 1, wherein, The RRM measurement value can be reported by the receiving node to the network node.

32. The wireless communication method as described in claim 28, wherein, The sending node and the receiving node can be determined by the network node based on the RRM measurement value.

33. The wireless communication method as described in claim 28, wherein, The sending node and the receiving node are selected by the serving base station based on the RRM measurement value.

34. The wireless communication method as described in claim 33, wherein, The selected sending node and the selected receiving node are recommended to the network node by the serving base station.

35. The wireless communication method as described in claim 34, wherein, The selected sending node and the selected receiving node are recommended to the network node by the serving base station for each sensing service, each sensing area, or each sensing target.

36. The wireless communication method as described in claim 1, wherein, The sensing configuration includes the expected sensing area when the sensing target moves.

37. The wireless communication method as described in claim 36, wherein, The expected sensing area is an absolute location, a local location, a list of sending nodes, or a list of receiving nodes.

38. The wireless communication method as described in claim 1, wherein, The perception configuration includes perception request information provided by the network node to the sending node located in the expected perception area, and perception assistance information provided by the network node to the receiving node located in the expected perception area.

39. The wireless communication method as described in claim 38, wherein, The sensing request information includes at least one or more of the following: a request for sensing RS transmission, a sensing RS configuration, a request for SSB / CSI-RS transmission, or an SSB / CSI-RS configuration.

40. The wireless communication method as described in claim 38, wherein, The sensing assistance information includes at least one or more of the following: the ID information of the sending node that successfully responded to the sensing request, the configuration of the sensing RS, the configuration of the SSB / CSI-RS, or the configuration for RRM measurement values.

41. The wireless communication method as described in claim 1, wherein, The receiving node is capable of measuring the sensed RS in both RRC_IDLE and RRC_INACTIVE states.

42. The wireless communication method as described in claim 1, wherein, The receiving node is able to report sensing measurements when switching between cells.

43. The wireless communication method as described in claim 1, wherein, The perception configuration includes the perception priority of the sending node and the perception priority of the receiving node.

44. The wireless communication method as described in claim 43, wherein, The sensing priority of the transmitting node and the sensing priority of the receiving node are associated with the RRM measurement value and with the relative position between the transmitting / receiving node and the sensing target.

45. The wireless communication method as described in claim 43, wherein, The perception priority of the sending node is also associated with the reselection priority of the sending node.

46. ​​The wireless communication method as described in claim 1, wherein, The receiving node measures the sensing RS transmitted by N sending nodes based on the sensing priority of the sending node.

47. The wireless communication method as described in claim 46, wherein, The receiving node reports the sensing measurements of the N sending nodes based on the sensing priority of the sending nodes.

48. The wireless communication method as described in claim 46, wherein, Low-priority receiving nodes do not measure the sensing RS.

49. A wireless communication method, comprising: The receiving node receives the sensing reference signal (RS) from the transmitting node of the mobility management-assisted sensing integration (ISAC) system; The receiving node of the ISAC system assisted by the mobility management measures the sensed RS; and The wireless communication devices or network nodes of the ISAC system determine the sensing configuration of the sensing receiver based on radio resource management (RRM) measurements.

50. A wireless communication device, comprising a processor and a memory, wherein, The processor is configured to read code from the memory and implement the method as described in any one of claims 1 to 48.

51. A computer program product comprising a computer-readable program medium having code stored thereon, the code, when executed by a processor, causing the processor to perform the method as described in any one of claims 1 to 48.

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