Systems and methods for adaptive resource configuration
Patent Information
- Application Number
- PCT/CN2024/070767
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2025-07-10
Smart Images

Figure CN2024070767_10072025_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS FOR ADAPTIVE RESOURCE CONFIGURATIONTECHNICAL FIELD
[0001] The disclosure relates generally to wireless communications, including but not limited to systems and methods for adaptive resource configuration for integrated sensing and communication (ISAC) .BACKGROUND
[0002] The standardization organization Third Generation Partnership Project (3GPP) is currently in the process of specifying a new Radio Interface called 5G New Radio (5G NR) as well as a Next Generation Packet Core Network (NG-CN or NGC) . The 5G NR will have three main components: a 5G Access Network (5G-AN) , a 5G Core Network (5GC) , and a User Equipment (UE) . In order to facilitate the enablement of different data services and requirements, the elements of the 5GC, also called Network Functions, have been simplified with some of them being software based, and some being hardware based, so that they could be adapted according to need. Communication via satellite is one of the typical scenarios of the non-terrestrial networks in 3GPP standardization. In addition, satellites will play an increasingly key part in providing coverage and resilience in 6G. In 6G study, RIS is another important topic, which provides a way to control the surfaces found in radio channels by directing them in a specific direction to improve the reliability and energy efficiency of wireless systems.SUMMARY
[0003] The example embodiments disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings. In accordance with various embodiments, example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of this disclosure.
[0004] At least one aspect is directed to a system, method, apparatus, or a computer-readable medium of the following. A first network node may configure beam related information. The beam related information may include at least one of: receiving beam related information or transmission beam related information. One or more best pairs of a transmission beam and a receiving beam can be determined based on a beam level measurement by a receiver node or by the first network node or a second network node. The beam level measurement may include at least one of: a beam level measurement; the receiving beam related information corresponding to the beam level measurement; or the transmission beam related information corresponding to the beam level measurement. The transmission beam related information may include at least one of: a transmission beam index; a spatial direction of the transmission beam; or a transmission power of the transmission beam. The receiving beam related information may include at least one of: a receiving beam index or a spatial direction of the receiving beam.
[0005] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the first network node, the first network node may recommend the transmission beam related information corresponding to at least one of the best pairs to a transmitter node and the receiving beam related information corresponding to at least one of the best pairs to a receiver node. The first network node may send the one or more best pairs of the transmission beam and the receiving beam to the receiver node.
[0006] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the receiver node, the one or more best pairs of the transmission beam and the receiving beam can be reported by the receiver node to the first network node. The transmission beam related information corresponding to at least one of the best pairs can be recommended by the first network node to a transmission node.
[0007] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the second network node, the best pairs of the transmission beam and the receiving beam can be reported by the second network node to the first network node. The first network node may recommend the transmission beam related information corresponding to at least one of the best pairs a transmitter node. The first network node may send the receiving beam related information corresponding to at least one of the best pairs to a receiver node. The first network node may send the one or more best pairs of the transmission beam and the receiving beam to the receiver node.
[0008] In some embodiments, a wireless communication device may determine to relax a granularity of sensing measuring based on a measurement or a configuration. The wireless communication device can be configured as a receiver node. The wireless communication device can be configured not to measure a sensing Reference Signal from a transmitter node if a Radio Resource Management (RRM) measurement of the transmitter node is lower than a RRM measurement threshold. The RRM measurement threshold can be configured by a network node, preconfigured, or determined by the wireless communication device. Multiple sensing measurement thresholds / ranges can be configured by the network node, preconfigured, or determined by the wireless communication device. Each of the sensing measurement ranges / thresholds can be associated with a sensing measuring granularity. The sensing measuring granularity can be represented by a sensing measuring period.
[0009] In some embodiments, if a sensing measurement measured from the transmitter node belongs to one of the sensing measurement ranges, the receiver node may measure the sensing RS from the transmitter node using the sensing measuring period associated with this sensing measurement range. A mapping relationship between the sensing measurement threshold / range and the sensing measuring granularity can be configured by the network node, preconfigured, or determined by the wireless communication device.
[0010] In some embodiments, a wireless communication device may identify multiple sensing resources configured or preconfigured for different sensing stages based on respective sensing services. The wireless communication device can be configured as a receiver node. The multiple sensing resources may include multiple sensing RS resource configurations. The multiple sensing resources may include multiple configurations of a sensing RS. The sensing RS resource configurations may include at least one of: a sensing RS resource index, a bandwidth of a sensing RS resource, a period of a sensing RS resource, or a repetition factor in a period of a sensing RS resource. The sensing RS resource configurations can be recommended by a network node to a transmitter node.
[0011] In some embodiments, the sensing RS resource configurations can be configured or preconfigured by a transmitter node and sent by the transmitter node to a network node. The sensing RS resource configurations can be provided by the network node to the wireless communication device. A new sensing RS resource associated with a new sensing stage can be requested by the wireless communication device to the network node, if the new sensing stage is satisfied. The new sensing RS resource associated with the new sensing stage can be requested by the network node to the transmitter node. Successful transmission of the new sensing RS resource associated with the new sensing stage can be responded by the transmitter node to the network node.
[0012] In some embodiments, successful transmission of the new sensing RS resource associated with the new sensing stage can be provided by the network node to the receiver node. The request for the new sensing RS resource associated with the new sensing stage may include at least one of: an indicator to trigger the transmission of the sensing RS resource associated with the new sensing stage or an index of the sensing RS resource associated with the new sensing stage. The response for the transmission of the sensing RS resource associated with the new sensing stage may include at least one of: an indicator which indicates the successful transmission of the sensing RS resource associated with the new sensing stage, or the index of the successfully transmitted sensing RS resource associated with the new sensing stage. An indicator or an (pre) configured sensing RS resource index can be sent by the receiver node to the transmitter node via UCI / MAC CE to trigger the transmission of the corresponding sensing RS resource associated with a new sensing stage. An indicator or the sensing RS resource index indicating the transmission of the corresponding sensing RS resource can be sent by the transmitter node to the wireless communication device. The sensing RS resource configurations may further include a duration time related information of each sensing RS resource. The duration time related information of each sensing RS resource may include at least one of: a start time of the sensing RS resource or a duration length of the sensing RS resource.
[0013] In some embodiments, a wireless communication device may send an uplink (UL) sensing measurement report per path. The wireless communication device can be configured as a transmitter node. The UL sensing measurement report for one arrival path may include at least one of: one TOA; multiple AOAs; one or multiple RSRPPs; multiple Doppler measurements; or multiple phase related measurements. The UL sensing measurement report for one arrival path of one same UL sensing RS can be a measurement pair of any two of: one TOA; M AOAs; one or M RSRPPs; N Doppler measurements; and N phase related measurements. The M AOAs and the N Doppler measurements may have corresponding relationships, respectively. The M AOAs, the N Doppler measurements and the N phase related measurements may have one-to-one corresponding relationships, respectively, if M is equal to N. Each of the AOAs, each of the Doppler measurements, and each of the phase related measurements may correspond to each arrival angle of the arrival path of one same UL sensing RS. If a number of the RSRPPs is 1, the RSRPP can be a single power of the arrival path in all arrival angles.
[0014] In some embodiments, if a number of the RSRPPs is M, the M RSRPPs and M AOAs have one-to-one corresponding relationships, respectively. Each RSRPP may correspond to each arrival angle of the arrival path of one same UL sensing RS. The UL sensing measurement report for one arrival path of one same UL sensing RS may include multiple measurement pairs of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement. Each measurement pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement may correspond to one arrival angle of the arrival path. TOA values in multiple measurement may pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be same.
[0015] In some embodiments, AOA values, Doppler measurements and phase related measurements in multiple measurement may pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be different. The AOA, Doppler measurement and phase related measurement in one measurement pair may correspond to the same arrival angle of the arrival path of one same UL sensing RS. RSRPP values in multiple measurement pairs of any two of one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be same, or can be different.
[0016] In some embodiments, if RSRPP values in multiple measurement pairs is same, RSRPP can be the single power of the arrival path in all arrival angles. If RSRPP values in multiple measurement pairs is different, RSRPP and AOA in the same measurement pair can be corresponding to the same arrival angle of the arrival path of one same UL sensing RS. UL sensing measurement report for one arrival path of one same UL sensing RS can be multiple measurement pair {One TOA, One RSRPP, additional measurement} . Additional measurement may at least include one of: M AOA, N Doppler measurements, and / or N phase related measurements.
[0017] In some embodiments, UL sensing measurement report for one arrival path of one same UL sensing RS can be multiple measurement pair {One TOA, additional measurement} . Additional measurement may at least include one of: M AOA, M RSRPP, N Doppler measurements, and / or N phase related measurements. The UL sensing measurement report can be per Doppler. A request for predicted location information of a sensing target in a configured future sensing time stamp may be sent by a first network node to a receiver node. A location estimation of the sensing target for a current sensing time stamp and the location prediction of the sensing target for a next sensing time stamp can be reported by a receiver node to the network node. The predicted location request can be include the requested predicted sensing time stamp. The location estimation report can include the estimated sensing time stamp. The location prediction report can include the predicted sensing time stamp. An estimation of a channel state for the current time stamp and the prediction of the channel state for the next time stamp can be reported by the receiver node to a second network node.
[0018] In some embodiments, a third network node may add usage of a Positioning Reference Signal (PRS) in a configuration of a Physical Frequency Layer (PFL) , in a configuration of a PRS resource set, or in a configuration of a PRS resource. The usage of the PRS can be configured for positioning only, for sensing only, or for both of the positioning and the sensing. The PRS for the sensing and the PRS configured for the positioning can be configured by the third network node or a first network node separately.
[0019] In some embodiments, the third network node may request measurements measured from a specific PRS for a sensing purpose in a Request Location Information message. The Request Location Information message can include a list of PRS resources whose measurements can be used for sensing. Each PRS resource in the list of PRS resources can be identified by at least one of: a TRP ID; an PRS resource set ID; or a PRS resource ID. A receiver node can be configured to report a usage of a PRS measurement in a Provide Location Information message. The usage of the PRS measurement can be configured for positioning only, for sensing only, or for both of the positioning and the sensing.
[0020] In some embodiments, a bitmap indicating which SSBs can be used for sensing can be configured by a second network node to a receiver node in an SSB configuration for mobility. A first network node may request a second network node with SSB measurements measured from specific SSBs for a sensing purpose in a Request Location Information message. A first network node may request a receiver node with SSB measurements measured from specific SSBs for a sensing purpose in a Request Location Information message. The Request Location Information message can include a bitmap indicating which SSBs’ measurements are requested for sensing. A receiver node may report specific SSB measurements requested in a Request Location Information message to a first network node in a Provide Location Information message.BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Various example embodiments of the present solution are described in detail below with reference to the following figures or drawings. The drawings are provided for purposes of illustration only and merely depict example embodiments of the present solution to facilitate the reader's understanding of the present solution. Therefore, the drawings should not be considered limiting of the breadth, scope, or applicability of the present solution. It should be noted that for clarity and ease of illustration, these drawings are not necessarily drawn to scale.
[0022] FIG. 1 illustrates an example cellular communication network in which techniques disclosed herein may be implemented, in accordance with an embodiment of the present disclosure;
[0023] FIG. 2 illustrates a block diagram of an example base station and a user equipment device, in accordance with some embodiments of the present disclosure;
[0024] FIG. 3 illustrates a sequence diagram illustrating determination and configuration of best pair (s) of Tx beam and Rx beam, in accordance with some embodiments of the present disclosure;
[0025] FIG. 4 illustrates a sequence diagram illustrating determination and configuration of best pair (s) of Tx beam and Rx beam, in accordance with some embodiments of the present disclosure;
[0026] FIG. 5 illustrates a sequence diagram illustrating determination and configuration of best pair (s) of Tx beam and Rx beam, in accordance with some embodiments of the present disclosure;
[0027] FIG. 6 illustrates a sequence diagram illustrating determination and configuration of best pair (s) of Tx beam and Rx beam, in accordance with some embodiments of the present disclosure; and
[0028] FIG. 7 illustrates a flow diagram of an example method for adaptive resource configuration, in accordance with an embodiment of the present disclosure.DETAILED DESCRIPTION
[0029] 1. Mobile Communication Technology and Environment
[0030] FIG. 1 illustrates an example wireless communication network, and / or system, 100 in which techniques disclosed herein may be implemented, in accordance with an embodiment of the present disclosure. In the following discussion, the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of things (NB-IoT) network, and is herein referred to as “network 100. ” Such an example network 100 includes a base station 102 (hereinafter “BS 102” ; also referred to as wireless communication node) and a user equipment device 104 (hereinafter “UE 104” ; also referred to as wireless communication device) that can communicate with each other via a communication link 110 (e.g., a wireless communication channel) , and a cluster of cells 126, 130, 132, 134, 136, 138 and 140 overlaying a geographical area 101. In FIG. 1, the BS 102 and UE 104 are contained within a respective geographic boundary of cell 126. Each of the other cells 130, 132, 134, 136, 138 and 140 may include at least one base station operating at its allocated bandwidth to provide adequate radio coverage to its intended users.
[0031] For example, the BS 102 may operate at an allocated channel transmission bandwidth to provide adequate coverage to the UE 104. The BS 102 and the UE 104 may communicate via a downlink radio frame 118, and an uplink radio frame 124 respectively. Each radio frame 118 / 124 may be further divided into sub-frames 120 / 127 which may include data symbols 122 / 128. In the present disclosure, the BS 102 and UE 104 are described herein as non-limiting examples of “communication nodes, ” generally, which can practice the methods disclosed herein. Such communication nodes may be capable of wireless and / or wired communications, in accordance with various embodiments of the present solution.
[0032] FIG. 2 illustrates a block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals (e.g., OFDM / OFDMA signals) in accordance with some embodiments of the present solution. The system 200 may include components and elements configured to support known or conventional operating features that need not be described in detail herein. In one illustrative embodiment, system 200 can be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment such as the wireless communication environment 100 of FIG. 1, as described above.
[0033] System 200 generally includes a base station 202 (hereinafter “BS 202” ) and a user equipment device 204 (hereinafter “UE 204” ) . The BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected with one another as necessary via a data communication bus 220. The UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected with one another as necessary via a data communication bus 240. The BS 202 communicates with the UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for transmission of data as described herein.
[0034] As would be understood by persons of ordinary skill in the art, system 200 may further include any number of modules other than the modules shown in FIG. 2. Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the embodiments disclosed herein may 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 generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend upon the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a suitable manner for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.
[0035] In accordance with some embodiments, the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230 that includes a radio frequency (RF) transmitter and a RF receiver each comprising circuitry that is coupled to the antenna 232. A duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in time duplex fashion. Similarly, in accordance with some embodiments, the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210 that includes a RF transmitter and a RF receiver each comprising circuity that is coupled to the antenna 212. A downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in time duplex fashion. The operations of the two transceiver modules 210 and 230 may be coordinated in time such that the uplink receiver circuitry is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250 at the same time that the downlink transmitter is coupled to the downlink antenna 212. Conversely, the operations of the two transceivers 210 and 230 may be coordinated in time such that the downlink receiver is coupled to the downlink antenna 212 for reception of transmissions over the wireless transmission link 250 at the same time that the uplink transmitter is coupled to the uplink antenna 232. In some embodiments, there is close time synchronization with a minimal guard time between changes in duplex direction.
[0036] The UE transceiver 230 and the base station transceiver 210 are configured to communicate via the wireless data communication link 250, and cooperate with a suitably configured RF antenna arrangement 212 / 232 that can support a particular wireless communication protocol and modulation scheme. In some illustrative embodiments, the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as the Long Term Evolution (LTE) and emerging 5G standards, and the like. It is understood, however, that the present disclosure is not necessarily limited in application to a particular standard and associated protocols. Rather, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternate, or additional, wireless data communication protocols, including future standards or variations thereof.
[0037] In accordance with various embodiments, the BS 202 may be an evolved node B (eNB) , a serving eNB, a target eNB, a femto station, or a pico station, for example. In some embodiments, the UE 204 may be embodied in various types of user devices such as a mobile phone, a smart phone, a personal digital assistant (PDA) , tablet, laptop computer, wearable computing device, etc. The processor modules 214 and 236 may be implemented, or realized, with a general purpose processor, a content addressable memory, a digital signal processor, an application specific integrated circuit, a 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. In this manner, a processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, or the like. A processor may also be implemented as a combination of computing devices, e.g., a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0038] Furthermore, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in firmware, in a software module executed by processor modules 214 and 236, respectively, or in any practical combination thereof. The memory modules 216 and 234 may be realized as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, memory modules 216 and 234 may be coupled to the processor modules 210 and 230, respectively, such that the processors modules 210 and 230 can read information from, and write information to, memory modules 216 and 234, respectively. The memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230. In some embodiments, the memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by processor modules 210 and 230, respectively. Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by the processor modules 210 and 230, respectively.
[0039] The network communication module 218 generally represents the hardware, software, firmware, processing logic, and / or other components of the base station 202 that enable bi-directional communication between base station transceiver 210 and other network components and communication nodes configured to communication with the base station 202. For example, network communication module 218 may be configured to support internet or WiMAX traffic. In a typical deployment, without limitation, network communication module 218 provides an 802.3 Ethernet interface such that base station transceiver 210 can communicate with a conventional Ethernet based computer network. In this manner, the network communication module 218 may include a physical interface for connection to the computer network (e.g., Mobile Switching Center (MSC) ) . The terms “configured for, ” “configured to” and conjugations thereof, as used herein with respect to a specified operation or function, refer to a device, component, circuit, structure, machine, signal, etc., that is physically constructed, programmed, formatted and / or arranged to perform the specified operation or function.
[0040] The Open Systems Interconnection (OSI) Model (referred to herein as, “open system interconnection model” ) is a conceptual and logical layout that defines network communication used by systems (e.g., wireless communication device, wireless communication node) open to interconnection and communication with other systems. The model is broken into seven subcomponents, or layers, each of which represents a conceptual collection of services provided to the layers above and below it. The OSI Model also defines a logical network and effectively describes computer packet transfer by 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, a first layer may be a physical layer. In some embodiments, a second layer may be a Medium Access Control (MAC) layer. In some embodiments, a third layer may be a Radio Link Control (RLC) layer. In some embodiments, a fourth layer may be a Packet Data Convergence Protocol (PDCP) layer. In some embodiments, a fifth layer may be a Radio Resource Control (RRC) layer. In some embodiments, a sixth layer may be a Non Access Stratum (NAS) layer or an Internet Protocol (IP) layer, and the seventh layer being the other layer.
[0041] Various example embodiments of the present solution are described below with reference to the accompanying figures to enable a person of ordinary skill in the art to make and use the present solution. As would be apparent to those of ordinary skill in the art, after reading the present disclosure, various changes or modifications to the examples described herein can be made without departing from the scope of the present solution. Thus, the present solution is not limited to the example embodiments and applications described and illustrated herein. Additionally, the specific order or hierarchy of steps in the methods disclosed herein are merely example approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present solution. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or acts in a sample order, and the present solution is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
[0042] 2. Systems and Methods for Adaptive Resource Configuration
[0043] In an integrated sensing and communication (ISAC) system, a sensing function can be achieved based on a communication device. The sensing use case can be a target detection and positioning / tracking, health monitoring, intelligent traffic and so on. In ISAC system, a transmitter node may transmit a Reference Signal (RS) to the sensing target. The RS can be reflected on the sensing target. The reflected RS from the sensing target can be received by a receiver node. If there is no specific resource configuration for sensing purpose, the sensing performance may be worse and the power consumption of the transmitter node and the receiver node may be very large. Thus, the suitable resource can be specifically configured for sensing purpose in an ISAC system. The present disclosure is related to adaptive resource configuration for sensing purpose, in order to improve the sensing accuracy and save power consumption of the transmitter node and the receiver node. In this disclosure, solutions are provided for adaptive resource configuration for sensing in an ISAC system.
[0044] In an ISAC system, both of communication function and sensing function can be achieved based on a communication device. There can be six sensing modes: base station (BS) mono-static sensing, BS bi-static sensing, BS as transmitter and user equipment (UE) as receiver, UE as transmitter and BS as transmitter, UE mono-static sensing, and UE bi-static sensing. The present disclosure focuses on the sensing mode of BS as transmitter / receiver and UE as receiver / transmitter. The reference signal (RS) for sensing purpose can be a synchronization signal block (SSB) , a channel state information reference signal (CSI-RS) , a positioning reference signal (PRS) , a sounding reference signal (SRS) , a specific sensing RS, or an unified RS and other RS used for a communication system.
[0045] If there is no specific resource configuration for sensing purpose, the sensing performance may be worse and the power consumption of the transmitter node and the receiver node may be very large. Thus, specifically configuring suitable resource for sensing purpose is important, in order to improve the sensing accuracy and save power consumption of the transmitter node and the receiver node. The present disclosure provides solutions for adaptive resource configuration for sensing in an ISAC system.
[0046] In this disclosure, a base station (BS) can be or include a next generation (NG) -RAN node, a gNB, a ng-eNB, a cell, and / or a transmission reception point (TRP) . In this disclosure, a sensing function (SF) can be a network logical unit, which is used for control and configuration of radio resource and parameters, and computation of sensing results. The SF can be integrated with location management function (LMF) , or can be integrated with other network logical unit, or can be an independent network logical unit. In this disclosure, the RS for sensing purpose can be a synchronization signal block (SSB) , a channel state information reference signal (CSI-RS) , a positioning reference signal (PRS) , a sounding reference signal (SRS) , a specific sensing RS, or an unified RS and other RS used for a communication system.
[0047] Implementation Example 1: Configure / Recommend beam information for transmission and receiving based on sensing measurement
[0048] In an ISAC system, based on the sensing service, a SF / LMF may have a prior information of the rough location / zone where the sensing target is located. The spatial directions of the transmission beam and the receiving beam can be configured by a BS or SF / LMF. The spatial directions of the transmission beam and receiving beam can be determined based on the sensing service. However, since the prior information is rough, the spatial directions of the transmission beam and the receiving beam may not be accuracy for the sensing target, which causes the unsatisfied sensing performance. Furthermore, multiple sensing resources according to multiple beams can be needed to sense the sensing target, because there is no precise location information of the sensing target, which is a huge power consumption for the transmission node and the receiving node. To improve the sensing accuracy and reduce the power consumption of the system, some solutions are provided in this Embodiment. This implementation example focuses on the sensing modes of BS as transmitter / receiver node and UE as receiver / transmitter node.
[0049] The sensing mode of BS as transmitter node and UE as receiver node
[0050] In the sensing assistance information configuration, the transmission beam related information can be configured to the receiver UE.
[0051] ● The transmission beam related information may at least include one or more of: a list of transmission beam indexes, a list of spatial directions of the transmission beams, and / or a list of transmission power of the transmission beams.
[0052] ○ The transmission beam index and the spatial direction of the transmission beam can be configured per sensing RS resource set, sensing RS resource, per TRP, or per sensing RS resource per TRP.
[0053] ○ The transmission power of the transmission beam can be configured per sensing RS resource, per TRP, per angle, per sensing RS resource per angle, per sensing RS resource per angle per TRP, or per sensing RS resource set.
[0054] ○ The spatial direction of the transmission beam can be represented by: azimuth angle, and / or elevation angle.
[0055] ○ The transmission beam related information can be configured to the receiver UE by RRC / MAC / PDCCH / PDSCH. Alternatively, the transmitter BS can report the transmission beam related information to SF / LMF, and then SF / LMF may provide the transmission beam related information in sensing assistance information message to the receiver UE.
[0056] The receiver UE may measure sensing RS to obtain beam level measurements based on multiple receiving beam. For UE-assisted sensing, the receiver UE may report multiple beam level measurements (e.g., Layer 1 measurements) to the network. Each beam level measurement related information includes at least one or more of the following:
[0057] ● Beam level measurement.
[0058] ● The receiving beam related information corresponding to the beam level measurement.
[0059] ○ The receiving beam related information may at least include one or more of: the receiving beam index, and / or the spatial direction of the receiving beam.
[0060] ● The transmission beam related information corresponding to the beam level measurement.
[0061] The multiple reported beam level measurements can be determined based on some rules. The rule can be one or more of the following:
[0062] ● The beam level measurements can be sorted and the N best beam level measurements can be reported to the network.
[0063] ○ The maximum number N of reported beam level measurements can be configured by SF / LMF, by a BS, preconfigured, or determined by the receiver UE.
[0064] ● One or more of threshold (s) / range (s) can be configured to justify which beam level measurement can be reported.
[0065] ○ Threshold can be: RSRP threshold, RSRQ threshold, SINR threshold, TOA threshold, AOA threshold, Doppler threshold, distance threshold, and / or phase threshold.
[0066] ○ Range can be: RSRP range, RSRQ range, SINR range, TOA range, AOA range, Doppler range, distance range, and / or phase range.
[0067] ○ One threshold or one range can be configured, and beam level measurements satisfying the threshold / range can be reported to the network. In some embodiments, the combination of one or more threshold (s) and range (s) can be configured, and beam level measurements satisfying all the configured threshold (s) and range (s) can be reported to the network.
[0068] ○ Threshold (s) and range (s) can be configured by SF / LMF, by a BS, preconfigured, or determined by the receiver UE.
[0069] The beam level measurements can be reported to SF / LMF, or can be reported to the serving BS of the receiver UE.
[0070] ● If the beam level measurements are reported to the serving BS, the serving BS may determine one or multiple best pair of the transmission beam and the receiving beam for sensing purpose based on the received beam level measurements, where the RS is transmitted by the transmitter BS and reflected through the sensing target and received by the receiver UE. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beams for the link from the transmitter BS to the sensing target to the receiver UE. In addition, the serving BS may determine one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose based on the received beam level measurements, where the RS is transmitted by the transmitter BS and directly received by the receiver UE. That is, one or multiple best pairs of the transmission beam and the receiving beam for communication purpose describes one or multiple best transmission beams and one or multiple best receiving beams for the link between the transmitter BS and the receiver UE. Also, the serving BS can determine the pairs of the transmission beams and the receiving beams corresponding to the blocks or environment targets.
[0071] ○ The transmission beam related information may at least include one or more of: the transmission beam index, the spatial direction of the transmission beam, and / or the transmission power of the transmission beam.
[0072] ○ The receiving beam related information may at least include one or more of: the receiving beam index, and / or the spatial direction of the receiving beam.
[0073] ○ If the transmitter BS of the RS is the serving BS, the transmission beam of the serving BS for the next communication purpose between it and the same UE can use the determined best transmission beam (s) based on the beam level measurements. Also, the transmission beam of the serving BS for the next same sensing link can use the determined best transmission beam (s) based on the beam level measurements.
[0074] ○ If the transmitter BS of the RS is not the serving BS, the serving BS can recommend the best transmission beams related information for sensing purpose and communication purpose to the transmitter BS via Xn interface. The recommended transmission beams related information for the transmitter BS for sensing purpose and communication purpose can be the determined best transmission beams for sensing purpose and communication purpose based on the beam level measurements. Also, the transmission beams related information corresponding to the blocks and environment targets can be recommended to the transmitter BS via Xn interface. Alternatively, the serving BS can report the best transmission beams related information of the transmitter BS for sensing purpose and communication purpose to SF / LMF. Then, SF / LMF may recommend the best transmission beams related information for sensing purpose and communication purpose to the transmitter BS. Also, the transmission beams related information corresponding to the blocks and environment targets can be recommended by the serving BS to SF / LMF, then SF / LMF can recommend the transmission beams related information corresponding to the blocks and environment targets to the transmitter BS.
[0075] ○ The serving BS may configure the best receiving beams related information for sensing purpose and communication purpose to the receiver UE as the receiving beams for sensing and communication via RRC / MAC / PDCCH / PDSCH. In some embodiments, the serving BS may configure the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the receiver UE via RRC / MAC / PDCCH / PDSCH. Alternatively, the serving BS reports the best receiving beams related information for sensing purpose and communication purpose to SF / LMF. Then, SF / LMF can provide the best receiving beams related information for sensing purpose and communication purpose to the receiver UE in Assistance Data message or in Measurement / Location Request message. In some embodiments, the serving BS may report the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to SF / LMF. Then, SF / LMF can provide the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the receiver UE in Assistance Data message or in Measurement / Location Request message.
[0076] ○ FIG. 3 and FIG. 4 show examples on the procedure of determination and configuration of the best pair (s) of Tx beam and Rx beam.
[0077] ● If the beam level measurements are reported to a SF / LMF, the SF / LMF may determine one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose based on the received beam level measurements, where the RS is transmitted by the transmitter BS and reflected through the sensing target and received by the receiver UE. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beam (s) for the link from the transmitter BS to the sensing target to the receiver UE. In addition, SF / LMF determines one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose based on the received beam level measurements, where the RS is transmitted by the transmitter BS and directly received by the receiver UE. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beam (s) for the link between the transmitter BS and the receiver UE. Also, SF / LMF can determine the pairs of the transmission beams and the receiving beams corresponding to the blocks or environment targets.
[0078] ○ The SF / LMF may recommend the best transmission beams related information for sensing purpose and communication purpose to the transmitter BS. Also, SF / LMF may recommend the transmission beams related information corresponding to the blocks and environment targets to the transmitter BS.
[0079] ○ The SF / LMF may provide the best receiving beams related information for sensing purpose and communication purpose to the receiver UE in Assistance Data message or in Measurement / Location Request message. In some embodiments, the SF / LMF may provide the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the receiver UE in Assistance Data message or in Measurement / Location Request message.
[0080] ○ FIG. 5 shows an example on the procedure of determination and configuration of the best pair (s) of Tx beam and Rx beam.
[0081] If the receiver UE is capable of calculation, the receiver UE can determine one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose based on the received beam level measurements. The RS can be transmitted by the transmitter BS and reflected through the sensing target and received by the receiver UE. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beam (s) for the link from the transmitter BS to the sensing target to the receiver UE. In addition, the receiver UE can determine one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose based on the received beam level measurements. The RS can be transmitted by the transmitter BS and directly received by the receiver UE. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose describes one or multiple best transmission beam (s) and the best receiving beam (s) for the link between the transmitter BS and the receiver UE. Also, the receiver UE can determine the pairs of the transmission beams and the receiving beams corresponding to the blocks or environment targets.
[0082] ● The receiver UE can report the best transmission beams related information for sensing purpose and communication purpose to the serving BS via PUCCH / PUSCH / MAC. Also, the receiver UE may report the transmission beams related information corresponding to the blocks and environment targets to the serving BS.
[0083] ○ If the serving BS is not the transmitter BS, the serving BS can transmit the best transmission beams related information for sensing purpose and communication purpose to the transmitter BS. Also, the serving BS may transmit the transmission beams related information corresponding to the blocks and environment targets to the transmitter BS.
[0084] ● Alternatively, the receiver UE may report the best transmission beams related information for sensing purpose and communication purpose to the SF / LMF. Then, the SF / LMF may send the best transmission beams related information for sensing purpose and communication purpose to the transmitter BS. Also, the receiver UE may report the transmission beams related information corresponding to the blocks and environment targets to SF / LMF, and SF / LMF may send the transmission beams related information corresponding to the blocks and environment targets to the transmitter BS. In some embodiments, the receiver UE may report the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to SF / LMF, and the SF / LMF may send the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the transmitter BS. FIG. 6 shows an example on the procedure of determination and configuration of the best pair (s) of Tx beam and Rx beam.
[0085] The sensing mode of UE as transmitter node and BS as receiver node
[0086] The receiver BS may measure sensing RS to obtain beam level measurements based on multiple receiving beam.
[0087] ● The receiver BS may determine one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose based on the beam level measurements, where the RS is transmitted by the transmitter UE and reflected through the sensing target and received by the receiver BS. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beam (s) for the link from the transmitter UE to the sensing target to the receiver BS. In addition, the receiver BS determines one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose based on the beam level measurements, where the RS is transmitted by the transmitter UE and directly received by the receiver BS. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose describes one or multiple best transmission beam (s) and the best receiving beam (s) for the link between the transmitter UE and the receiver BS. Also, the receiver BS can determine the pairs of the transmission beams and the receiving beams corresponding to the blocks or environment targets.
[0088] ○ The receiver BS may report the best transmission beams related information for sensing purpose and for communication purpose to SF / LMF. Then, the SF / LMF recommend the best transmission beams related information of the transmitter UE for sensing purpose and for communication purpose to the serving BS and configures the best transmission beams related information to the transmitter UE for sensing purpose and for communication purpose. Alternatively, the SF / LMF may recommend the best transmission beams related information of the transmitter UE for sensing purpose and for communication purpose to the serving BS, and the serving BS may configure the best transmission beams related information to the transmitter UE for sensing purpose and for communication purpose to the transmitter UE.
[0089] ○ The receiver BS may report the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the SF / LMF.
[0090] ○ Alternatively, if the receiver BS is not the serving BS, the receiver BS may transmit the best transmission beams related information for sensing purpose and for communication purpose to the serving BS via Xn interface. The serving BS may configure the best transmission beams related information for sensing purpose and for communication purpose to the transmitter UE via a RRC / MAC / PDCCH / PDSCH.
[0091] ○ Alternatively, if the receiver BS is not the serving BS, the receiver BS may transmit the best pairs of the transmission beam and the receiving beam for sensing purpose and for communication purpose to the serving BS.
[0092] ● Alternatively, the receiving BS may report the beam level measurements to the SF / LMF. The SF / LMF may determine one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose based on the beam level measurements, where the RS is transmitted by the transmitter UE and reflected through the sensing target and received by the receiver BS. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for sensing purpose describes one or multiple best transmission beam (s) and one or multiple best receiving beam (s) for the link from the transmitter UE to the sensing target to the receiver BS. In addition, the SF / LMF may determine one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose based on the beam level measurements, where the RS is transmitted by the transmitter UE and directly received by the receiver BS. That is, one or multiple best pair (s) of the transmission beam and the receiving beam for communication purpose describes one or multiple best transmission beam (s) and the best receiving beam (s) for the link between the transmitter UE and the receiver BS. Also, the SF / LMF may determine the pairs of the transmission beams and the receiving beams corresponding to the blocks or environment targets.
[0093] ○ The SF / LMF may recommend the best receiving beams related information for sensing purpose and for communication purpose to the receiver BS. The SF / LMF may configure the best transmission beams related information for sensing purpose and for communication purpose to the transmitter UE.
[0094] ○ Alternatively, the SF / LMF may recommend the best receiving beams related information for sensing purpose and for communication purpose to the receiver BS. The SF / LMF may recommend the best transmission beams related information of the transmission UE for sensing purpose and for communication purpose to the serving BS, and the serving BS may configure the best transmission beams related information of the transmission UE for sensing purpose and for communication purpose to the transmitter UE.
[0095] ○ Alternatively, the SF / LMF may recommend the best receiving beams related information for sensing purpose and for communication purpose to the receiver BS. The SF / LMF may send the best pairs of the transmission beams and the receiving beams for sensing purpose and for communication purpose to the serving BS, and the serving BS may configure the best transmission beams related information for sensing purpose and for communication purpose to the transmitter UE.
[0096] Implementation Example 2: Relaxation mechanism of sensing measuring
[0097] In the sensing mode of UE as receiver, in order to reduce the power consumption, a UE can relax the granularity of sensing measuring based on the measurement or configuration. In this implementation example, some relaxation mechanisms for sensing measuring are provided.
[0098] Solution 1: A RRM measurement threshold can be configured to assist measuring relaxation of the sensing measurement.
[0099] The receiver UE may measure SSB / CSI-RS transmitted by multiple BSs to obtain RRM measurements. Configuring a RRM measurement threshold to justify / determine whether the RRM measurement is better than the RRM measurement threshold. If the RRM measurement of one BS is lower than the threshold, the receiver UE may not measure the sensing RS transmitted by this BS until the RRM measurement of this BS is larger than or equal to the RRM measurement threshold.
[0100] ● The RRM measurement threshold can be: a RSRP threshold, a RSRQ threshold, and / or a SINR threshold.
[0101] ● The RRM measurement threshold can be configured by the SF / LMF, or by the serving BS via a RRC / MAC CE / DCI, or preconfigured, or determined by the receiver UE.
[0102] ● The RRM measurement can be beam level measurement (e.g., Layer 1 measurement) , and / or cell level measurement (e.g., Layer 3 measurement) . If the RRM measurement is beam level measurement, the RRM measurement threshold can be a beam level threshold. If the RRM measurement is cell level measurement, the RRM measurement threshold can be a cell level threshold.
[0103] ● If the beam level measurement is compared with the threshold, the beam level measurement used to compare can be the beam level measurement which is measured by the receiving beam configured in the Assistance Data message or the Location / Measurement Request message.
[0104] Solution 2: A sensing measurement threshold / range is configured for measuring relaxation of the sensing measurement.
[0105] The receiver UE may measure sensing RS transmitted by multiple BSs to obtain sensing measurements. Configuring a sensing measurement threshold / range to justify / determine whether the sensing measurement satisfies the sensing measurement threshold / range.
[0106] ● If the sensing measurement of one BS is worse than the sensing measurement threshold or the sensing measurement of this BS does not belong to the sensing measurement range, the receiver UE may not measure the sensing RS transmitted by this BS any more.
[0107] ● Alternatively, if the sensing measurement of one BS is worse than the sensing measurement threshold or the sensing measurement of this BS does not belong to the sensing measurement range, the receiver UE may not measure the sensing RS transmitted by this BS for a next duration time.
[0108] ○ The sensing measurement threshold can be: a TOA threshold, a AOA threshold, a detection time threshold, a distance threshold, a Doppler threshold, and / or a phase threshold.
[0109] ○ The sensing measurement range can be: a TOA range, a AOA range, a detection time range, a distance range, a Doppler range, and / or a phase range.
[0110] ○ The sensing measurement threshold / range can be configured by the SF / LMF, or by the serving BS via RRC / MAC CE / DCI, or preconfigured, or determined by the receiver UE.
[0111] ○ If the beam level sensing measurement is compared with the threshold / range, the beam level sensing measurement used to compare is the beam level sensing measurement which is measured by the receiving beam configured in the Assistance Data message or the Location / Measurement Request message.
[0112] ○ The duration time the receiver UE does not measure sensing RS is configured by the SF / LMF, or by the serving BS via RRC / MAC CE / DCI, or preconfigured, or determined by the receiver UE.
[0113] ○ The duration time the receiver UE does not measure sensing RS can be represented by a duration length.
[0114] Solution 3: Configure multiple sensing measurement ranges / thresholds associated with measuring granularity.
[0115] The receiver UE may measure sensing RS transmitted by multiple BSs to obtain sensing measurements. Configure multiple sensing measurement ranges / thresholds. Each sensing measurement range / threshold can be associated with a sensing measuring granularity. The sensing measuring granularity can be represented by the sensing measuring period. If the sensing measurement of one BS belongs to one sensing measurement range, the receiver UE can measure the sensing RS transmitted by this BS using the sensing measuring period associated with this sensing measurement range.
[0116] ● The mapping relationship between the sensing measurement range / threshold and the sensing measuring granularity can be configured by SF / LMF, by the serving BS via RRC / MAC CE / DCI, preconfigured, or determined by the receiver UE.
[0117] ● For example, if the sensing measurement of one BS is satisfied and belongs to a sensing measurement range associated with a dense sensing measuring period, the receiver UE can measure the sensing RS transmitted by this BS in this dense sensing measuring period. If the sensing measurement of one BS is bad and belongs to a sensing measurement range associated with a sparse sensing measuring period, the receiver UE can measure the sensing RS transmitted by this BS in this sparse sensing measuring period.
[0118] ● If the beam level sensing measurement is used to compare with the range / threshold, the beam level sensing measurement can be the beam level sensing measurement which is measured by the receiving beam configured in the Assistance Data message or the Location / Measurement Request message.
[0119] ● The better the quality indicated by the sensing measurement range / threshold, the denser the sensing measuring period.
[0120] Solution 4: Configure multiple RRM measurement ranges / thresholds associated with measuring granularity.
[0121] The receiver UE may measure SSB / CSI-RS transmitted by multiple BSs to obtain RRM measurements. Configure multiple RRM measurement ranges / thresholds. Each RRM measurement range / threshold can be associated with a sensing measuring granularity. The sensing measuring granularity can be represented by the sensing measuring period. If RRM measurement of one BS belongs to one RRM measurement range or satisfies one RRM measurement threshold, the receiver UE can measure the sensing RS transmitted by this BS using the sensing measuring period associated with this RRM measurement range / threshold.
[0122] ● The mapping relationship between the RRM measurement range / threshold and the sensing measuring granularity can be configured by SF / LMF, by the serving BS via a RRC / MAC CE / DCI, preconfigured, or determined by the receiver UE.
[0123] ● For example, if RRM measurement (e.g., RSRP / RSRQ / SINR) of one RS is large and satisfies a RRM measurement threshold / range, the receiver UE can measure the sensing RS transmitted by this BS in a dense sensing measuring period associated with the RRM measurement threshold / range. If RRM measurement (e.g., RSRP / RSRQ / SINR) of one RS is small and satisfies a RRM measurement threshold / range associated with a sparse sensing measuring period, the receiver UE can measure the sensing RS transmitter by this BS in a sparse sensing measuring period.
[0124] ● If the beam level RRM measurement is used to compare with the range / threshold, the beam level RRM measurement can be the beam level RRM measurement which is measured by the receiving beam configured in the Assistance Data message or the Location / Measurement Request message.
[0125] ● The larger the RRM measurement range / threshold, the denser it associated sensing measuring granularity.
[0126] Implementation Example 3: Adaptive configuration of sensing resource
[0127] In some sensing use cases, sensing task may vary with the sensing stages. For example, in target tracking scenario, the first sensing stage can be a target detection, then target tracking can be the second sensing stage. In target detection stage, the sensing RS can be transmitted and measured sparsely before one or more sensing target (s) is (are) detected. When one or more sensing target (s) is (are) detected, more sensing resources may be configured to improve tracking accuracy. Thus, in order to reduce power consumption and improve resource utilization and sensing performance, different sensing resource can be configured in different sensing stage, and the receiver UE has the different receiving behavior in different sensing stage. In this implementation example, some solutions are provided to configure different sensing resource in different sensing stages.
[0128] Multiple sensing resources can be configured based on the sensing service.
[0129] ● Multiple sensing resources can be multiple sensing RS resources with associated configurations.
[0130] ○ The configuration of the sensing RS resource may at least include one or more of: the sensing RS resource index, bandwidth of the sensing RS resource, period of the sensing RS resource, and / or repetition factor in a period of the sensing RS resource.
[0131] ○ The SF / LMF may recommend / transmit configurations of multiple sensing RS resources to BS based on the sensing service. Alternatively, BS may (pre) configure multiple sensing RS resources in order to accommodate the changed sensing stage.
[0132] ■ The BS may send configurations of multiple sensing RS resources to SF / LMF, and the SF / LMF may provide configurations of multiple sensing RS resources to UE in Assistance Data message and / or Location / Measurement Request message. Alternatively, the serving BS can (pre) configure the configurations of multiple sensing RS resources to UE via the RRC / MAC / PDCCH / PDSCH. If the transmitter BS is not the serving BS, the transmitter BS can send the configurations of multiple sensing RS resources to the serving BS, and the serving BS may provide the configurations of multiple sensing RS resources of the transmitter BS to UE via a RRC / MAC / PDCCH / PDSCH.
[0133] ■ The receiver UE may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the receiver UE may send an indicator or an (pre) configured sensing RS resource index to BS via UCI / MAC CE to activate / trigger the transmission of the corresponding sensing RS resource associated with the next sensing stage. If the sensing RS resource associated with the new sensing stage is triggered successfully and transmitted, the BS may send an indicator or the sensing RS resource index to the receiver UE to indicate the transmission of the corresponding sensing RS resource.
[0134] ● The condition (s) to enter a new sensing stage can be: sensing measurements satisfy configured events, and / or sensing measurements satisfy configured threshold / range.
[0135] ○ The event for justifying whether the sensing stage is changed can be configured by the SF / LMF, or by the BS, or preconfigured, or determined by the receiver UE.
[0136] ○ The threshold / range for justifying whether the sensing stage is changed can be configured by the SF / LMF, or by the BS, or preconfigured, or determined by the receiver UE.
[0137] ■ Alternatively, the receiver UE may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the receiver UE sends the request for the transmission of the sensing RS resource associated with the next sensing stage to SF / LMF. Then, the SF / LMF may request BS to transmit the sensing RS resource associated with the new sensing stage. Then, the BS may provide the response for the successful transmission of the sensing RS resource associated with the new sensing stage to SF / LMF. The SF / LMF may provide the response for the successful transmission of the sensing RS resource associated with the next sensing stage to the receiver UE in Assistance Data message or Location / Measurement Request message.
[0138] ● The request for the transmission of the sensing RS resource associated with the new sensing stage may at least include one of: an indicator to trigger the transmission of the sensing RS resource associated with the new sensing stage, and / or the index of (pre) configured sensing RS resource associated with the new sensing stage.
[0139] ● The response for the transmission of the sensing RS resource associated with the new sensing stage may at least include one of: an indicator which indicates the successful transmission of the sensing RS resource associated with the new sensing stage, and / or the index of the successfully transmitted sensing RS resource associated with the new sensing stage.
[0140] ■ Alternatively, the receiver UE may report the sensing measurements to SF / LMF. The SF / LMF may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the SF / LMF may send the request for the transmission of the sensing RS resource associated with the next sensing stage to the BS. Then, the BS may provide the response for the successful transmission of the sensing RS resource associated with the new sensing stage to the SF / LMF. And the SF / LMF provides the response for the successful transmission of the sensing RS resource associated with the next sensing stage to the receiver UE in Assistance Data message or Location / Measurement Request message.
[0141] ■ Alternatively, the BS may configure the duration time related information of each sensing RS resource to the receiver UE. The duration time related information of each sensing RS resource can be included in the configurations of the sensing RS resource.
[0142] ● The duration time related information of a sensing RS resource may at least include one or more of: the start time of the sensing RS resource, or the duration length of the sensing RS resource.
[0143] ■ Alternatively, the BS may determine when a (pre) configured sensing RS resource can be transmitted. If a (pre) configured sensing RS resource is transmitted in order to accommodate the changed sensing stage, the BS can send an indicator or the index of the successfully transmitted sensing RS resource associated with the new sensing stage to the receiver UE.
[0144] ● Multiple sensing resources can be multiple configurations of the sensing RS.
[0145] ○ The configuration of sensing RS may include at least one or more of: bandwidth of the sensing RS, period of the sensing RS, and / or repetition factor in a period of the sensing RS.
[0146] ○ Multiple configurations of the sensing RS can be recommended / provided by the SF / LMF to the BS based on the sensing service. Alternatively, multiple configurations of the sensing RS can be (pre) configured by BS.
[0147] ■ The BS may send multiple configurations of the sensing RS to the SF / LMF, and the SF / LMF may provide multiple configurations of the sensing RS to UE in Assistance Data message and / or Location / Measurement Request message. Alternatively, the serving BS can (pre) configure the multiple configurations of the sensing RS to UE via a RRC / MAC / PDCCH / PDSCH. If the transmitter BS is not the serving BS, the transmitter BS can send multiple configurations of the sensing RS to the serving BS, and the serving BS may provide the multiple configurations of the sensing RS of the transmitter BS to the UE via a RRC / MAC / PDCCH / PDSCH.
[0148] ■ The receiver UE may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the receiver UE may send an indicator or an (pre) configured configuration index of the sensing RS to the BS via UCI / MAC CE to activate / trigger the update of the configuration of the sensing RS associated with the next sensing stage. If the configuration of the sensing RS associated with the new sensing stage is updated successfully, the BS may send an indicator or the configuration index of the sensing RS to the receiver UE to indicate the successful update of the corresponding configuration of the sensing RS.
[0149] ● The condition (s) to enter a new sensing stage can be: sensing measurements satisfy configured events, and / or sensing measurements satisfy configured threshold / range.
[0150] ○ The event for justifying whether the sensing stage is changed can be configured by the SF / LMF, or by the BS, or preconfigured, or determined by the receiver UE.
[0151] ○ The threshold / range for justifying whether the sensing stage is changed can be configured by the SF / LMF, or by the BS, or preconfigured, or determined by the receiver UE.
[0152] ■ Alternatively, the receiver UE may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the receiver UE may send the request for the configuration update of the sensing RS associated with the next sensing stage to the SF / LMF. Then, the SF / LMF may send the request for the configuration update of the sensing RS associated with the next sensing stage to the BS. Then, the BS may provide the response for the successful configuration update of the sensing RS associated with the new sensing stage to the SF / LMF. And the SF / LMF may provide the response for the successful configuration update of the sensing RS associated with the next sensing stage to the receiver UE in Assistance Data message or Location / Measurement Request message.
[0153] ● The request for the configuration update of the sensing RS associated with the new sensing stage may at least include one of: an indicator to trigger the configuration update of the sensing RS associated with the new sensing stage, and / or the (pre) configured configuration index of the sensing RS associated with the new sensing stage.
[0154] ● The response for the configuration update of the sensing RS associated with the new sensing stage may at least include one of: an indicator which indicates the successful configuration update of the sensing RS associated with the new sensing stage, and / or the successfully updated configuration index of the sensing RS resource associated with the new sensing stage.
[0155] ■ Alternatively, the receiver UE may report the sensing measurements to the SF / LMF. The SF / LMF may determine whether the condition (s) to enter another sensing stage is satisfied based on sensing measurement. If the condition (s) to enter another sensing stage is satisfied, the SF / LMF may send the request for the configuration update of the sensing RS associated with the next sensing stage to the BS. Then, the BS may provide the response for the successful configuration update of the sensing RS associated with the new sensing stage to the SF / LMF. And the SF / LMF may provide the response for the successful configuration update of the sensing RS associated with the next sensing stage to the receiver UE in Assistance Data message or Location / Measurement Request message.
[0156] ■ Alternatively, in each configuration of the sensing RS, the duration time related information can be included.
[0157] ● The duration time related information of a configuration of the sensing RS may at least include one or more of: the start time of the configuration of the sensing RS, or the duration length of the configuration of the sensing RS.
[0158] ■ Alternatively, the BS may determine when the configuration of the sensing RS is updated. If the configuration of the sensing RS is updated in order to accommodate the changed sensing stage, the BS can send an indicator or the index of the updated configuration of the sensing RS associated with the new sensing stage to the receiver UE.
[0159] In the receiver UE side, the receiver UE can have different measuring behavior in different sensing stage. For example, in target tracking scenario, the receiver UE can measure the sensing RS in a sparse measuring period in target detection stage. After the receiver UE detects one or more sensing target (s) , the receiver UE can measure the sensing RS in a dense measuring period in a target tracking stage.
[0160] ● The SF / LMF may configure multiple measuring periods associated with different sensing stages to the receiver UE in Assistance Data message or Location / Measurement Request message. Also, the SF / LMF may configure events / thresholds / ranges used to justify whether the sensing stage is changed to the receiver UE in Assistance Data message or Location / Measurement Request message. If the receiver UE determines the sensing stage is changed, the receiver UE can use the configured measuring period associated with the new sensing stage to measure the sensing RS.
[0161] ● Alternatively, the BS can configure multiple measuring periods associated with different sensing stages to the receiver UE via a RRC / MAC / PDCCH / PDSCH. Also, the BS may configure events / thresholds / ranges used to justify whether the sensing stage is changed to the receiver UE via a RRC / MAC / PDCCH / PDSCH. If the receiver UE determines the sensing stage is changed, the receiver UE can use the configured measuring period associated with the sensing stage to measure the sensing RS.
[0162] ● Alternatively, the LMF / SF may configure the duration times of the sensing resources associated with multiple sensing stages to the receiver UE in Assistance Data message or Location / Measurement Request message. The duration time of the sensing resource may at least include one of: the start time of the sensing resource, and / or the duration length of the sensing resource. The receiver UE can measure the sensing RS during the duration time of this sensing RS using the sensing measuring configuration associated with this sensing RS or the associated sensing stage. Alternatively, the duration times of the sensing resources associated with multiple sensing stages can be configured by BS to the receiver UE via a RRC / MAC / PDCCH / PDSCH.
[0163] ● Alternatively, the update of the sensing resource or the sensing stage can be indicated by BS to the receiver UE via a DCI / MAC CE. When the receiver UE receives the update indicator, the receiver UE may adjust its sensing measuring configuration based on the new sensing resource or the new sensing stage. Alternatively, the update of the sensing resource or the sensing stage can be indicated by SF / LMF to the receive UE via Assistance Data message or Location / Measurement Request message.
[0164] Implementation Example 4: Sensing measurement report
[0165] In a sensing mode of UE as transmitter and BS as receiver, the transmitter UE may transmit uplink (UL) sensing RS to the sensing target. The UL sensing RS can be reflected on the sensing target. The reflected UL sensing RS can be received by the receiver BS. Then, the receiver BS may report UL sensing measurement to the SF / LMF.
[0166] The receiver BS can measure UL sensing measurements for multiple arrival paths of one same UL sensing RS, and report UL sensing measurements for multiple arrival paths of one same UL sensing RS. The UL sensing measurement can be reported per path. The format of UL sensing measurement report for one arrival path can be one or more of the following:
[0167] ● In UL sensing measurement report for one arrival path, Time of Arrival (TOA) , Angle of Arrival (AOA) , Reference Signal Received Path Power (RSRPP) , Doppler shift, and / or phase related measurement can be included.
[0168] ● In UL sensing measurement report for one arrival path, one TOA, multiple AOA, one RSRPP, multiple Doppler shift, and / or multiple phase related measurement can be included.
[0169] ○ The measurement pair {one TOA, M AOA, one RSRPP, N Doppler shift, and / or N phase related measurement} can be reported for one arrival path of one same UL sensing RS.
[0170] ■ M AOA and N Doppler shift have corresponding relationship. M AOA and N phase related measurement have corresponding relationship. N Doppler shift and N phase related measurement have one-to-one corresponding relationship.
[0171] ● M can equal N. In certain embodiments, M can not equal N. If M equals N, M AOA and N Doppler shift and N phase related measurement have one-to-one corresponding relationship. That means, each Doppler shift and each phase related measurement can be corresponding to each AOA. That means, each AOA and each Doppler shift and each phase related measurement can be corresponding to each arrival angle of the arrival path of one same UL sensing RS.
[0172] ○ Multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} can be reported for one arrival path of one same UL sensing RS. Each measurement pair {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} is corresponding to one arrival angle of the arrival path.
[0173] ■ TOA values in multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} for multiple arrival angles of the same arrival path can be same.
[0174] ■ AOA values, Doppler shift values and phase related measurements in multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} for multiple arrival angles of the same arrival path can be different.
[0175] ● In each measurement pair {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} , the AOA, Doppler shift and phase related measurement have corresponding relationship. That means, AOA, Doppler shift and phase related measurement in one measurement pair can be corresponding to the same arrival angle of the arrival path of one same UL sensing RS.
[0176] ■ RSRPP values in multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} for multiple arrival angles of the same arrival path shall be same. That means, RSRPP can be the single power of the arrival path in all arrival angles.
[0177] ○ The measurement pair {One TOA, One RSRPP, additional measurement} can be reported for one arrival path of one same UL sensing RS. The additional measurement includes M AOA, N Doppler shift, and / or N phase related measurement.
[0178] ■ M AOA and N Doppler shift may have corresponding relationship. M AOA and N phase related measurement may have corresponding relationship. N Doppler shift and N phase related measurement may have one-to-one corresponding relationship.
[0179] ● M can equal N. In certain embodiments, M can not equal N. If M equals N, M AOA and N Doppler shift and N phase related measurement may have one-to-one corresponding relationship. That means, each Doppler shift and each phase related measurement can be corresponding to each AOA. That means, each AOA and each Doppler shift and each phase related measurement can be corresponding to each arrival angle of the arrival path of one same UL sensing RS.
[0180] ● In UL sensing measurement report for one arrival path, one TOA, multiple AOA, multiple RSRPP, multiple Doppler shift, and / or multiple phase related measurement can be included.
[0181] ○ The measurement pair {one TOA, M AOA, M RSRPP, N Doppler shift, and / or N phase related measurement} can be reported for one arrival path of one same UL sensing RS.
[0182] ■ M AOA and N Doppler shift may have corresponding relationship. M AOA and N phase related measurement may have corresponding relationship. N Doppler shift and N phase related measurement may have one-to-one corresponding relationship. M AOA and M RSRP may have one-to-one corresponding relationship.
[0183] ● M can equal N. In certain embodiments, M can not equal N. If M equals N, M AOA and M RSRP and N Doppler shift and N phase related measurement may have one-to-one corresponding relationship. That means, each Doppler shift and each phase related measurement can be corresponding to each AOA. That means, each AOA, each RSRPP, each Doppler shift and each phase related measurement can be corresponding to each arrival angle of the arrival path of one same UL sensing RS.
[0184] ○ Multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} can be reported for one arrival path of one same UL sensing RS. Each measurement pair {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} can be corresponding to one arrival angle of the arrival path.
[0185] ■ TOA values in multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} for multiple arrival angles of the same arrival path can be same.
[0186] ■ AOA values, RSRPP values, Doppler shift values and phase related measurements in multiple measurement pairs {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} for multiple arrival angles of the same arrival path can be different.
[0187] ● In each measurement pair {one TOA, one AOA, one RSRPP, one Doppler shift, and / or one phase related measurement} , the AOA, RSRPP, Doppler shift and phase related measurement may have corresponding relationship. That means, AOA, RSRP, Doppler shift and phase related measurement in one measurement pair can be corresponding to the same arrival angle of the arrival path of one same UL sensing RS.
[0188] ○ The measurement pair {One TOA, additional measurement} can be reported for one arrival path of one same UL sensing RS. The additional measurement may include M AOA, M RSRPP, N Doppler shift, and / or N phase related measurement.
[0189] ■ M AOA and N Doppler shift may have corresponding relationship. M AOA and N phase related measurement may have corresponding relationship. N Doppler shift and N phase related measurement may have one-to-one corresponding relationship. M AOA and M RSRP may have one-to-one corresponding relationship.
[0190] ● M can equal N. In some embodiments, M can not equal N. If M equals N, M AOA and M RSRP and N Doppler shift and N phase related measurement may have one-to-one corresponding relationship. That means, each Doppler shift and each phase related measurement can be corresponding to each AOA. That means, each AOA, each RSRPP, each Doppler shift and each phase related measurement can be corresponding to each arrival angle of the arrival path of one same UL sensing RS.
[0191] The UL sensing measurement can be reported by the receiver BS to the SF / LMF per Doppler shift.
[0192] ● The measurement pair {one Doppler shift, multiple measurement bundles} can be reported. Each measurement bundle may at least include {one TOA, one AOA, one RSRPP} .
[0193] ○ TOA, AOA and RSRPP in the measurement bundle {one TOA, one AOA, one RSRPP} can be corresponding to a same arrival path of one same UL sensing RS.
[0194] ○ Multiple measurement bundles may be measured for a same arrival path in different arrival angles. Or multiple measurement bundles may be measures for different arrival paths.
[0195] ■ If multiple measurement bundles are measured for a same arrival path in different arrival angles, TOA values in these measurement bundles can be the same, and AOA values in these measurement bundles can be different.
[0196] ■ If multiple measurement bundles are measured for a same arrival path in different arrival angles, RSRPP values in these measurement bundles can be the same. Alternatively, if multiple measurement bundles are measured for a same arrival path in different arrival angles, RSRPP values in these measurement bundles can be different.
[0197] In most sensing service, the sensing target moves and / or the channel state changes over time. The receiver node and / or the network may predict the channel state and the location information of the sensing target in the next sensing time stamp, in order to obtain the more accuracy sensing performance and communication performance.
[0198] ● The SF / LMF may determine the motion state of the sensing target, and may provide the parameters of the motion state of the sensing target to the receiver node in Assistance Data message.
[0199] ○ The parameters of the motion state of the sensing target may be the parameters reflecting the motion state transition of the sensing target.
[0200] ● The receiver node may report the sensing measurement to the SF / LMF. The SF / LMF may estimate the location information of the sensing target based on sensing measurements of multiple sensing time stamps, and may predict the location information of the sensing target for the next sensing time stamp. Then, SF / LMF can recommend / configure sensing resources and sensing configurations to the transmitter node and the receiver node for next sensing time stamp.
[0201] ○ The recommended sensing resource may at least include one or more of: transmission beam related information, sensing resource configuration.
[0202] ○ The recommended / configured sensing configurations may at least include one or more of: the location information of the sensing target, the sensing zone, the receiving beam related information.
[0203] ● The SF / LMF may estimate the channel state and the parameters of the environment targets based on sensing measurements of multiple sensing time stamps, and may predict the channel state and the parameters of the environment targets for the next sensing time stamp and the next communication time stamp. Then, the SF / LMF can send the channel state related parameters and environment targets related parameters for the next communication time stamp to the transmitter node and the receiver node, so as to assist communication in the next communication time stamp.
[0204] ● Alternatively, the receiver node may estimate the location information of the sensing target based on sensing measurements of multiple sensing time stamps, and may predict the location information of the sensing target for the next sensing time stamp. Then, the receiver node may report the location information of the sensing target for the current sensing time stamp and the location information of the sensing target for the next sensing time stamp to the SF / LMF. Meanwhile, in the estimated location information report of the sensing target for the current sensing time stamp, the estimated sensing time stamp can be included. In the predicted location information of the sensing target for the next sensing time stamp, the predicted sensing time stamp can be included.
[0205] ○ In the Location Request message transmitted by SF / LMF to the receiver node, the request for predicted location information of the sensing target in a configured future sensing time stamp may be include. The request for predicted location information of the sensing target in a configured future sensing time stamp can be optional.
[0206] ○ When the SF / LMF receivers the estimated location information report and the predicted location information report, it can recommend / configure sensing resources and sensing configurations to the transmitter node and the receiver node for next sensing time stamp.
[0207] ● Alternatively, the receiver node may estimate the channel state and the parameters of the environment targets based on sensing measurements of multiple sensing time stamps, and may predict the channel state and the parameters of the environment targets for the next sensing time stamp and the next communication time stamp. Then, the receiver node can send the channel state related parameters and environment targets related parameters for the next communication time stamp to the transmitter node, so as to assist communication in the next communication time stamp.
[0208] Implementation Example 5: Enhancement of existing RS configuration for sensing
[0209] In a communication system, a positioning reference signal (PRS) can be used for positioning and a synchronization signal block (SSB) can be used for mobility. In order to reduce signaling consumption, the PRS and the SSB can be reused for sensing purpose, positioning measurement and SSB measurement can be used for sensing purpose.
[0210] PRS reused for sensing purpose:
[0211] For positioning, a PRS can be configured by a location management function (LMF) . The configuration of PRS can be configured per physical frequency layer (PFL) and per resource set and per resource. To achieve both positioning and sensing based on PRS, the usage of PRS can be included in the configuration of PRS.
[0212] ● The usage of PRS can be configured per PFL. That means, the usage of PRS can be added in the configuration of PFL.
[0213] ● Alternatively, the usage of PRS can be configured per resource set. That means, the usage of PRS can be added in the configuration of PRS resource set.
[0214] ● Alternatively, the usage of PRS can be configured per resource. That means, the usage of PRS can be added in the configuration of PRS resource.
[0215] ● The usage of PRS can be for positioning only, or for sensing only, or for both of positioning and sensing.
[0216] Alternatively, the PRS for sensing can be configured by the SF / LMF separately from the PRS configured for positioning. For a PRS measurement report, a receiver node may report the usage of the PRS measurement in Provide Location Information message. The usage of the PRS measurement can be for positioning only, or for sensing only, or for both of positioning and sensing.
[0217] In addition, the SF / LMF may request measurements measured from specific PRS for sensing purpose in Request Location Information message.
[0218] ● In the Request Location Information message, a list of PRS resources whose measurements can be used for sensing can be included.
[0219] ○ Each PRS resource in the list of PRS resources can be identified by: TRP ID, PRS resource set ID and PRS resource ID.
[0220] Alternatively, a PRS measurement for sensing can be reported by the receiver node to the SF / LMF separately from the PRS measurement report for positioning.
[0221] SSB reused for sensing purpose:
[0222] In a SSB configuration for mobility, a bitmap indicating which SSBs can be used for sensing can be included. For example, SSB-ToMeasureForSensing can be configured. SSB-ToMeasureForSensing may be added in SSB-ConfigMobility, which indicates the set of SSBs to be measured for sensing purpose within the SMTC measurement duration. SSB-ToMeasureForSensing is a bitmap. The first / leftmost bit of SSB-ToMeasureForSensing may correspond to SSB index 0. The second bit of SSB-ToMeasureForSensing may correspond to SSB index 1. Value 0 in the bitmap SSB-ToMeasureForSensing may indicate that the corresponding SSB is not to be measured for sensing purpose while value 1 may indicate that the corresponding SSB is to be measured for sensing.
[0223] For a SSB measurement report, the receiver node can report SSB measurement to the serving BS. The SF / LMF may request the serving BS with SSB measurements measured from specific SSBs for sensing purpose in Request Location Information message.
[0224] ● In the Request Location Information message, a bitmap indicating which SSBs’ measurements are requested for sensing can be included.
[0225] ○ The first / leftmost bit in the bitmap may correspond to SSB index 0’s measurement. The second bit may correspond to SSB index 1’s measurement. Value 0 in the bitmap may indicate that the corresponding SSB’s measurement is not requested while value 1 may indicate that the corresponding SSB’s measurement is requested.
[0226] Alternatively, the SF / LMF may request the receiver UE with SSB measurements measured from specific SSBs for sensing purpose in Request Location Information message.
[0227] ● In the Request Location Information message, a bitmap indicating which SSBs’ measurements are requested for sensing can be included.
[0228] ○ The first / leftmost bit in the bitmap may correspond to SSB index 0’s measurement. The second bit may correspond to SSB index 1’s measurement. Value 0 in the bitmap may indicate that the corresponding SSB’s measurement is not requested while value 1 may indicate that the corresponding SSB’s measurement is requested.
[0229] The receiver UE can report SSB measurements to the serving BS for mobility, while may report specific SSB measurements requested in Request Location Information message to the SF / LMF in Provide Location Information message.
[0230] In some sensing scenario, due to the mobility of the sensing target, the transmission node and the receiver node can change as the sensing target moves. In the sensing mode of BS as transmitter and UE as receiver, in order to guarantee the continuity of the sensing performance, the receiver node may send the historical sensing measurements / estimations of the sensing target / zone to the new transmitter BS in cell handover operation. Alternatively, in cell handover operation, the SF / LMF may send the historical sensing measurements / estimations of the sensing target / zone to the new transmitter BS.
[0231] It should be understood that one or more features from the above / following implementation examples are not exclusive to the specific implementation examples, but can be combined in any manner (e.g., in any priority and / or order, concurrently or otherwise) .
[0232] FIG. 7 illustrates a flow diagram of a method 700 for adaptive resource configuration for integrated sensing and communication (ISAC) . The method 700 may be implemented using any one or more of the components and devices detailed herein in conjunction with FIGS. 1 to 6. In overview, the method 700 may be performed by a network node, in some embodiments. Additional, fewer, or different operations may be performed in the method 700 depending on the embodiment. At least one aspect of the operations is directed to a system, method, apparatus, or a computer-readable medium.
[0233] A first network node may configure beam related information. The beam related information may include at least one of: receiving beam related information or transmission beam related information. One or more best pairs of a transmission beam and a receiving beam can be determined based on a beam level measurement by a receiver node or by the first network node or a second network node. The beam level measurement may include at least one of: a beam level measurement; the receiving beam related information corresponding to the beam level measurement; or the transmission beam related information corresponding to the beam level measurement. The transmission beam related information may include at least one of: a transmission beam index; a spatial direction of the transmission beam; or a transmission power of the transmission beam. The receiving beam related information may include at least one of: a receiving beam index or a spatial direction of the receiving beam.
[0234] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the first network node, the first network node may recommend the transmission beam related information corresponding to at least one of the best pairs to a transmitter node and the receiving beam related information corresponding to at least one of the best pairs to a receiver node. The first network node may send the one or more best pairs of the transmission beam and the receiving beam to the receiver node.
[0235] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the receiver node, the one or more best pairs of the transmission beam and the receiving beam can be reported by the receiver node to the first network node. The transmission beam related information corresponding to at least one of the best pairs can be recommended by the first network node to a transmission node.
[0236] In some embodiments, if the one or more best pairs of the transmission beam and the receiving beam are determined by the second network node, the best pairs of the transmission beam and the receiving beam can be reported by the second network node to the first network node. The first network node may recommend the transmission beam related information corresponding to at least one of the best pairs a transmitter node. The first network node may send the receiving beam related information corresponding to at least one of the best pairs to a receiver node. The first network node may send the one or more best pairs of the transmission beam and the receiving beam to the receiver node.
[0237] In some embodiments, a wireless communication device may determine to relax a granularity of sensing measuring based on a measurement or a configuration. The wireless communication device can be configured as a receiver node. The wireless communication device can be configured not to measure a sensing Reference Signal from a transmitter node if a Radio Resource Management (RRM) measurement of the transmitter node is lower than a RRM measurement threshold. The RRM measurement threshold can be configured by a network node, preconfigured, or determined by the wireless communication device. Multiple sensing measurement thresholds / ranges can be configured by the network node, preconfigured, or determined by the wireless communication device. Each of the sensing measurement ranges / thresholds can be associated with a sensing measuring granularity. The sensing measuring granularity can be represented by a sensing measuring period.
[0238] In some embodiments, if a sensing measurement measured from the transmitter node belongs to one of the sensing measurement ranges, the receiver node may measure the sensing RS from the transmitter node using the sensing measuring period associated with this sensing measurement range. A mapping relationship between the sensing measurement threshold / range and the sensing measuring granularity can be configured by the network node, preconfigured, or determined by the wireless communication device.
[0239] In some embodiments, a wireless communication device may identify multiple sensing resources configured or preconfigured for different sensing stages based on respective sensing services. The wireless communication device can be configured as a receiver node. The multiple sensing resources may include multiple sensing RS resource configurations. The multiple sensing resources may include multiple configurations of a sensing RS. The sensing RS resource configurations may include at least one of: a sensing RS resource index, a bandwidth of a sensing RS resource, a period of a sensing RS resource, or a repetition factor in a period of a sensing RS resource. The sensing RS resource configurations can be recommended by a network node to a transmitter node.
[0240] In some embodiments, the sensing RS resource configurations can be configured or preconfigured by a transmitter node and sent by the transmitter node to a network node. The sensing RS resource configurations can be provided by the network node to the wireless communication device. A new sensing RS resource associated with a new sensing stage can be requested by the wireless communication device to the network node, if the new sensing stage is satisfied. The new sensing RS resource associated with the new sensing stage can be requested by the network node to the transmitter node. Successful transmission of the new sensing RS resource associated with the new sensing stage can be responded by the transmitter node to the network node.
[0241] In some embodiments, successful transmission of the new sensing RS resource associated with the new sensing stage can be provided by the network node to the receiver node. The request for the new sensing RS resource associated with the new sensing stage may include at least one of: an indicator to trigger the transmission of the sensing RS resource associated with the new sensing stage or an index of the sensing RS resource associated with the new sensing stage. The response for the transmission of the sensing RS resource associated with the new sensing stage may include at least one of: an indicator which indicates the successful transmission of the sensing RS resource associated with the new sensing stage, or the index of the successfully transmitted sensing RS resource associated with the new sensing stage. An indicator or an (pre) configured sensing RS resource index can be sent by the receiver node to the transmitter node via UCI / MAC CE to trigger the transmission of the corresponding sensing RS resource associated with a new sensing stage. An indicator or the sensing RS resource index indicating the transmission of the corresponding sensing RS resource can be sent by the transmitter node to the wireless communication device. The sensing RS resource configurations may further include a duration time related information of each sensing RS resource. The duration time related information of each sensing RS resource may include at least one of: a start time of the sensing RS resource or a duration length of the sensing RS resource.
[0242] In some embodiments, a wireless communication device may send an uplink (UL) sensing measurement report per path. The wireless communication device can be configured as a transmitter node. The UL sensing measurement report for one arrival path may include at least one of: one TOA; multiple AOAs; one or multiple RSRPPs; multiple Doppler measurements; or multiple phase related measurements. The UL sensing measurement report for one arrival path of one same UL sensing RS can be a measurement pair of any two of: one TOA; M AOAs; one or M RSRPPs; N Doppler measurements; and N phase related measurements. The M AOAs and the N Doppler measurements may have corresponding relationships, respectively. The M AOAs, the N Doppler measurements and the N phase related measurements may have one-to-one corresponding relationships, respectively, if M is equal to N. Each of the AOAs, each of the Doppler measurements, and each of the phase related measurements may correspond to each arrival angle of the arrival path of one same UL sensing RS. If a number of the RSRPPs is 1, the RSRPP can be a single power of the arrival path in all arrival angles.
[0243] In some embodiments, if a number of the RSRPPs is M, the M RSRPPs and M AOAs have one-to-one corresponding relationships, respectively. Each RSRPP may correspond to each arrival angle of the arrival path of one same UL sensing RS. The UL sensing measurement report for one arrival path of one same UL sensing RS may include multiple measurement pairs of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement. Each measurement pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement may correspond to one arrival angle of the arrival path. TOA values in multiple measurement may pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be same.
[0244] In some embodiments, AOA values, Doppler measurements and phase related measurements in multiple measurement may pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be different. The AOA, Doppler measurement and phase related measurement in one measurement pair may correspond to the same arrival angle of the arrival path of one same UL sensing RS. RSRPP values in multiple measurement pairs of any two of one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path can be same, or can be different.
[0245] In some embodiments, if RSRPP values in multiple measurement pairs is same, RSRPP can be the single power of the arrival path in all arrival angles. If RSRPP values in multiple measurement pairs is different, RSRPP and AOA in the same measurement pair can be corresponding to the same arrival angle of the arrival path of one same UL sensing RS. UL sensing measurement report for one arrival path of one same UL sensing RS can be multiple measurement pair {One TOA, One RSRPP, additional measurement} . Additional measurement may at least include one of: M AOA, N Doppler measurements, and / or N phase related measurements.
[0246] In some embodiments, UL sensing measurement report for one arrival path of one same UL sensing RS can be multiple measurement pair {One TOA, additional measurement} . Additional measurement may at least include one of: M AOA, M RSRPP, N Doppler measurements, and / or N phase related measurements. The UL sensing measurement report can be per Doppler. A request for predicted location information of a sensing target in a configured future sensing time stamp may be sent by a first network node to a receiver node. A location estimation of the sensing target for a current sensing time stamp and the location prediction of the sensing target for a next sensing time stamp can be reported by a receiver node to the network node. The predicted location request can be include the requested predicted sensing time stamp. The location estimation report can include the estimated sensing time stamp. The location prediction report can include the predicted sensing time stamp. An estimation of a channel state for the current time stamp and the prediction of the channel state for the next time stamp can be reported by the receiver node to a second network node.
[0247] In some embodiments, a third network node may add usage of a Positioning Reference Signal (PRS) in a configuration of a Physical Frequency Layer (PFL) , in a configuration of a PRS resource set, or in a configuration of a PRS resource. The usage of the PRS can be configured for positioning only, for sensing only, or for both of the positioning and the sensing. The PRS for the sensing and the PRS configured for the positioning can be configured by the third network node or a first network node separately.
[0248] In some embodiments, the third network node may request measurements measured from a specific PRS for a sensing purpose in a Request Location Information message. The Request Location Information message can include a list of PRS resources whose measurements can be used for sensing. Each PRS resource in the list of PRS resources can be identified by at least one of: a TRP ID; an PRS resource set ID; or a PRS resource ID. A receiver node can be configured to report a usage of a PRS measurement in a Provide Location Information message. The usage of the PRS measurement can be configured for positioning only, for sensing only, or for both of the positioning and the sensing.
[0249] In some embodiments, a bitmap indicating which SSBs can be used for sensing can be configured by a second network node to a receiver node in an SSB configuration for mobility. A first network node may request a second network node with SSB measurements measured from specific SSBs for a sensing purpose in a Request Location Information message. A first network node may request a receiver node with SSB measurements measured from specific SSBs for a sensing purpose in a Request Location Information message. The Request Location Information message can include a bitmap indicating which SSBs’ measurements are requested for sensing. A receiver node may report specific SSB measurements requested in a Request Location Information message to a first network node in a Provide Location Information message.
[0250] While various embodiments of the present solution have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. Likewise, the various diagrams may depict an example architectural or configuration, which are provided to enable persons of ordinary skill in the art to understand example features and functions of the present solution. Such persons would understand, however, that the solution is not restricted to the illustrated example architectures or configurations, but can be implemented using a variety of alternative architectures and configurations. Additionally, as would be understood by persons of ordinary skill in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.
[0251] It is also understood that any reference to an element herein using a designation such as "first, " "second, " and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
[0252] Additionally, a person having ordinary skill in the art would 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, for example, which may be referenced in the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0253] A person of ordinary skill in the art would further appreciate that any of the various illustrative logical blocks, modules, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software" or a "software module) , or any combination of these techniques. 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 techniques, depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure.
[0254] Furthermore, a person of ordinary skill in the art would understand that various illustrative logical blocks, modules, devices, components and circuits described herein can be implemented within or performed by an integrated circuit (IC) that can 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 device, or any combination thereof. The logical blocks, modules, and circuits can further include antennas and / or transceivers to communicate with various components within the network or within the device. A general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
[0255] If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another. A storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
[0256] In this document, the term "module" as used herein, refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various modules are described as discrete modules; however, as would be apparent to one of ordinary skill in the art, two or more modules may be combined to form a single module that performs the associated functions according embodiments of the present solution.
[0257] Additionally, memory or other storage, as well as communication components, may be employed in embodiments of the present solution. It will be appreciated that, for clarity purposes, the above description has described embodiments of the present solution with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present solution. For example, functionality illustrated to be performed by separate processing logic elements, or controllers, may be performed by the same processing logic element, or controller. Hence, references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.
[0258] Various modifications to the embodiments described in this disclosure will be readily 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. Thus, the disclosure is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims below.
Claims
1.A wireless communication method, comprising:configuring, by a first network node, beam related information;wherein the beam related information includes at least one of: receiving beam related information or transmission beam related information.2.The wireless communication method of claim 1, wherein one or more best pairs of a transmission beam and a receiving beam are determined based on a beam level measurement by a receiver node or by the first network node or a second network node.3.The wireless communication method of claim 2, wherein the beam level measurement includes at least one of: a beam level measurement; the receiving beam related information corresponding to the beam level measurement; or the transmission beam related information corresponding to the beam level measurement.4.The wireless communication method of claim 3, wherein the transmission beam related information includes at least one of: a transmission beam index; a spatial direction of the transmission beam; or a transmission power of the transmission beam.5.The wireless communication method of claim 3, wherein the receiving beam related information includes at least one of: a receiving beam index or a spatial direction of the receiving beam.6.The wireless communication method of claim 2, wherein if the one or more best pairs of the transmission beam and the receiving beam are determined by the first network node, the method further comprises:recommending, by the first network node, the transmission beam related information corresponding to at least one of the best pairs to a transmitter node and the receiving beam related information corresponding to at least one of the best pairs to a receiver node.7.The wireless communication method of claim 6, further comprising:sending, by the first network node to the receiver node, the one or more best pairs of the transmission beam and the receiving beam.8.The wireless communication method of claim 2, wherein if the one or more best pairs of the transmission beam and the receiving beam are determined by the receiver node, the one or more best pairs of the transmission beam and the receiving beam are reported by the receiver node to the first network node.9.The wireless communication method of claim 8, wherein the transmission beam related information corresponding to at least one of the best pairs is recommended by the first network node to a transmission node.10.The wireless communication method of claim 2, wherein if the one or more best pairs of the transmission beam and the receiving beam are determined by the second network node, the best pairs of the transmission beam and the receiving beam are reported by the second network node to the first network node.11.The wireless communication method of claim 10, further comprising:recommending, by the first network node to a transmitter node, the transmission beam related information corresponding to at least one of the best pairs; andsending, by the first network node to a receiver node, the receiving beam related information corresponding to at least one of the best pairs.12.The wireless communication method of claim 10, further comprising:sending, by the first network node to the receiver node, the one or more best pairs of the transmission beam and the receiving beam.13.A wireless communication method, comprising:determining, by a wireless communication device, to relax a granularity of sensing measuring based on a measurement or a configuration;wherein the wireless communication device is configured as a receiver node.14.The wireless communication method of claim 13, wherein the wireless communication device is configured not to measure a sensing Reference Signal from a transmitter node if a Radio Resource Management (RRM) measurement of the transmitter node is lower than a RRM measurement threshold.15.The wireless communication method of claim 14, wherein the RRM measurement threshold is configured by a network node, preconfigured, or determined by the wireless communication device.16.The wireless communication method of claim 15, wherein multiple sensing measurement thresholds / ranges are configured by the network node, preconfigured, or determined by the wireless communication device.17.The wireless communication method of claim 16, wherein each of the sensing measurement ranges / thresholds is associated with a sensing measuring granularity.18.The wireless communication method of claim 17, wherein the sensing measuring granularity is represented by a sensing measuring period.19.The wireless communication method of claim 18, wherein if a sensing measurement measured from the transmitter node belongs to one of the sensing measurement ranges, the receiver node measures the sensing RS from the transmitter node using the sensing measuring period associated with this sensing measurement range.20.The wireless communication method of claim 17, wherein a mapping relationship between the sensing measurement threshold / range and the sensing measuring granularity is configured by the network node, preconfigured, or determined by the wireless communication device.21.A wireless communication method, comprising:identifying, by a wireless communication device, multiple sensing resources configured or preconfigured for different sensing stages based on respective sensing services;wherein the wireless communication device is configured as a receiver node.22.The wireless communication method of claim 21, wherein the multiple sensing resources include multiple sensing RS resource configurations.23.The wireless communication method of claim 21, wherein the multiple sensing resources include multiple configurations of a sensing RS.24.The wireless communication method of claim 22, wherein the sensing RS resource configurations include at least one of: a sensing RS resource index, a bandwidth of a sensing RS resource, a period of a sensing RS resource, or a repetition factor in a period of a sensing RS resource.25.The wireless communication method of claim 24, wherein the sensing RS resource configurations are recommended by a network node to a transmitter node.26.The wireless communication method of claim 24, wherein the sensing RS resource configurations are configured or preconfigured by a transmitter node and sent by the transmitter node to a network node.27.The wireless communication method of claim 26, wherein the sensing RS resource configurations are provided by the network node to the wireless communication device.28.The wireless communication method of claim 27, wherein a new sensing RS resource associated with a new sensing stage is requested by the wireless communication device to the network node, if the new sensing stage is satisfied.29.The wireless communication method of claim 28, wherein the new sensing RS resource associated with the new sensing stage is requested by the network node to the transmitter node.30.The wireless communication method of claim 29, wherein successful transmission of the new sensing RS resource associated with the new sensing stage is responded by the transmitter node to the network node.31.The wireless communication method of claim 30, wherein successful transmission of the new sensing RS resource associated with the new sensing stage is provided by the network node to the receiver node.32.The wireless communication method of claim 28 or 29, wherein the request for the new sensing RS resource associated with the new sensing stage includes at least one of: an indicator to trigger the transmission of the sensing RS resource associated with the new sensing stage or an index of the sensing RS resource associated with the new sensing stage.33.The wireless communication method of claim 30 or 31, wherein the response for the transmission of the sensing RS resource associated with the new sensing stage includes at least one of: an indicator which indicates the successful transmission of the sensing RS resource associated with the new sensing stage, or the index of the successfully transmitted sensing RS resource associated with the new sensing stage.34.The wireless communication method of claim 27, wherein an indicator or an (pre) configured sensing RS resource index is sent by the receiver node to the transmitter node via UCI / MAC CE to trigger the transmission of the corresponding sensing RS resource associated with a new sensing stage.35.The wireless communication method of claim 34, wherein an indicator or the sensing RS resource index indicating the transmission of the corresponding sensing RS resource is sent by the transmitter node to the wireless communication device.36.The wireless communication method of claim 24, wherein the sensing RS resource configurations further include a duration time related information of each sensing RS resource.37.The wireless communication method of claim 36, wherein the duration time related information of each sensing RS resource includes at least one of: a start time of the sensing RS resource or a duration length of the sensing RS resource.38.A wireless communication method, comprising:sending, by a wireless communication device, an uplink (UL) sensing measurement report per path;wherein the wireless communication device is configured as a transmitter node.39.The wireless communication method of claim 38, wherein the UL sensing measurement report for one arrival path includes at least one of: one TOA; multiple AOAs; one or multiple RSRPPs; multiple Doppler measurements; or multiple phase related measurements.40.The wireless communication method of claim 39, wherein the UL sensing measurement report for one arrival path of one same UL sensing RS is a measurement pair of any two of: one TOA; M AOAs; one or M RSRPPs; N Doppler measurements; and N phase related measurements.41.The wireless communication method of claim 40, wherein the M AOAs and the N Doppler measurements have corresponding relationships, respectively.42.The wireless communication method of claim 41, wherein the M AOAs, the N Doppler measurements and the N phase related measurements have one-to-one corresponding relationships, respectively, if M is equal to N.43.The wireless communication method of claim 40, wherein if a number of the RSRPPs is M, the M RSRPPs and M AOAs have one-to-one corresponding relationships, respectively, where each RSRPP corresponds to each arrival angle of the arrival path of one same UL sensing RS.44.The wireless communication method of claim 39, wherein the UL sensing measurement report for one arrival path of one same UL sensing RS includes multiple measurement pairs of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement, and wherein each measurement pair of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement corresponds to one arrival angle of the arrival path.45.The wireless communication method of claim 44, wherein TOA values in multiple measurement pairs of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path is same.46.The wireless communication method of claim 44, wherein AOA values, Doppler measurements and phase related measurements in multiple measurement pairs of any two of: one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path is different.47.The wireless communication method of claim 46, wherein the AOA, Doppler measurement and phase related measurement in one measurement pair correspond to the same arrival angle of the arrival path of one same UL sensing RS.48.The wireless communication method of claim 44, wherein RSRPP values in multiple measurement pairs of any two of one TOA; one AOA; one RSRPP; one Doppler measurement; and one phase related measurement for multiple arrival angles of the same arrival path is same, or is different.49.The wireless communication method of claim 48, wherein if RSRPP values in multiple measurement pairs is same, RSRPP is the single power of the arrival path in all arrival angles.50.The wireless communication method of claim 48, wherein if RSRPP values in multiple measurement pairs is different, RSRPP and AOA in the same measurement pair are corresponding to the same arrival angle of the arrival path of one same UL sensing RS.51.The wireless communication method of claim 39, wherein UL sensing measurement report for one arrival path of one same UL sensing RS is multiple measurement pair {One TOA, One RSRPP, additional measurement} .52.The wireless communication method of claim 51, wherein additional measurement at least includes one of: M AOA, N Doppler measurements, and / or N phase related measurements.53.The wireless communication method of claim 39, wherein UL sensing measurement report for one arrival path of one same UL sensing RS is multiple measurement pair {One TOA, additional measurement} .54.The wireless communication method of claim 53, wherein additional measurement at least includes one of: M AOA, M RSRPP, N Doppler measurements, and / or N phase related measurements.55.The wireless communication method of claim 38, wherein the UL sensing measurement report is per Doppler.56.The wireless communication method of claim 38, wherein a request for predicted location information of a sensing target in a configured future sensing time stamp is sent by a first network node to a receiver node.57.The wireless communication method of claim 56, wherein a location estimation of the sensing target for a current sensing time stamp and the location prediction of the sensing target for a next sensing time stamp are reported by a receiver node to the network node.58.The wireless communication method of claim 56, wherein the predicted location request shall include the requested predicted sensing time stamp.59.The wireless communication method of claim 57, wherein the location estimation report shall include the estimated sensing time stamp.60.The wireless communication method of claim 57, wherein the location prediction report includes the predicted sensing time stamp.61.The wireless communication method of claim 57, wherein an estimation of a channel state for the current time stamp and the prediction of the channel state for the next time stamp are reported by the receiver node to a second network node.62.A wireless communication method, comprising:adding, by a third network node, usage of a Positioning Reference Signal (PRS) in a configuration of a Physical Frequency Layer (PFL) , in a configuration of a PRS resource set, or in a configuration of a PRS resource.63.The wireless communication method of claim 62, wherein the usage of the PRS is configured for positioning only, for sensing only, or for both of the positioning and the sensing.64.The wireless communication method of claim 63, wherein the PRS for the sensing and the PRS configured for the positioning is configured by the third network node or a first network node separately.65.The wireless communication method of claim 62, further comprising requesting, by the third network node, measurements measured from a specific PRS for a sensing purpose in a Request Location Information message.66.The wireless communication method of claim 65, wherein the Request Location Information message includes a list of PRS resources whose measurements can be used for sensing.67.The wireless communication method of claim 66, wherein each PRS resource in the list of PRS resources is identified by at least one of: a TRP ID; an PRS resource set ID; or a PRS resource ID.68.The wireless communication method of claim 62, wherein a receiver node is configured to report a usage of a PRS measurement in a Provide Location Information message.69.The wireless communication method of claim 68, wherein the usage of the PRS measurement can be configured for positioning only, for sensing only, or for both of the positioning and the sensing.70.A wireless communications apparatus comprising a processor and a memory, wherein the processor is configured to read code from the memory and implement a method recited in any of claims 1 to 69.71.A computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a method recited in any of claims 1 to 69.
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