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WO2025189426A1 - Systèmes et procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement - Google Patents

Systèmes et procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement

Info

Publication number
WO2025189426A1
WO2025189426A1 PCT/CN2024/081710 CN2024081710W WO2025189426A1 WO 2025189426 A1 WO2025189426 A1 WO 2025189426A1 CN 2024081710 W CN2024081710 W CN 2024081710W WO 2025189426 A1 WO2025189426 A1 WO 2025189426A1
Authority
WO
WIPO (PCT)
Prior art keywords
wireless communication
measurement
network node
request
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/081710
Other languages
English (en)
Inventor
Yu Ngok Li
Chuangxin JIANG
Minqiang ZOU
Junchen Liu
Lun Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to PCT/CN2024/081710 priority Critical patent/WO2025189426A1/fr
Publication of WO2025189426A1 publication Critical patent/WO2025189426A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1822—Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Definitions

  • the disclosure relates generally to wireless communications, including but not limited to systems and methods for performing sensing, beam management, channel state information, and/or positioning.
  • example embodiments disclosed herein are directed to solving the issues relating to one or multiple 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.
  • 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.
  • a wireless communication node e.g., BS
  • RS reference signal
  • the wireless communication node can receive/acquire/obtain a response to the request from the second network node.
  • the wireless communication node can receive/acquire/obtain the feedback based on the RS from a wireless communication device (e.g., a UE (as a sensing receiver device) ) or the second network node.
  • a wireless communication device e.g., a UE (as a sensing receiver device)
  • the second network node can include a sensing function (SF) , a location management function (LMF) , a combination of the sensing function and the positioning function, or another function of core network.
  • SF sensing function
  • LMF location management function
  • the RS can include at least one of the following: a RS having a usage other than for measurement of channel state information (CSI) ; a RS having a usage other than for beam management; a RS for sensing; a RS for locationing; a RS for beam management; a RS for radio resource management (RRM) ; a RS for tracking; a RS for time or frequency synchronization; and/or a RS of only one port.
  • CSI channel state information
  • RRM radio resource management
  • the feedback can include one or more reports from the wireless communication device in physical layer or medium access control (MAC) layer or radio resource control (RRC) layer.
  • the feedback can include channel state information (CSI) feedback.
  • the CSI feedback can include a precoding matrix indicator (PMI) .
  • the CSI feedback can include one or more channel quality indicator (CQI) or reference signal received power (RSRP) values corresponding to the PMI.
  • CQI channel quality indicator
  • RSRP reference signal received power
  • the feedback can include at least one of the following: one or more Doppler vectors; one or more Doppler vectors and a corresponding scaling factor matrix; one or more delay vectors; one or more delay vectors and a corresponding scaling factor matrix; one or more Doppler vectors and one or more delay vectors; and/or one or more Doppler vectors, one or more delay vectors, and a corresponding scaling factor matrix.
  • the RS is the RS of one port.
  • the request or response can include at least one of the following: information of the RS including at least one of the following: one or more resource identifiers (IDs) , one or more resource set IDs, an indication of a beam, an indication of a direction, an identifier of a transmit-reception point (TRP) , frequency layer information, or other information about the RS; an indication of one or more measurement result types of reporting; an indication of periodic, semi-persistent or aperiodic type of reporting; and/or time stamp or time duration of measurement results.
  • IDs resource identifiers
  • TRP transmit-reception point
  • the wireless communication node can determine that/whether the response confirms or allows part or all of the request.
  • the wireless communication node or the second network node can send/transmit/provide a radio access network (RAN) level measurement request including at least one of the following: a configuration for the RS, or one or more types of reports (e.g., Doppler vectors, Doppler vectors and the corresponding scaling factor matrix, delay vectors, delay vectors and the corresponding scaling factor matrix, Doppler vectors and delay vectors, or Doppler vectors, delay vectors, and corresponding scaling factor matrix) to be included in the feedback to the wireless communication device.
  • RAN radio access network
  • the second network node can directly perform an authentication or authorization check in response to the request or can request another network node to perform an authentication or authorization check in response to the request.
  • the one or more measurement result types of reporting, to be included in the feedback can include an indication of at least one of the following: a frequency vector; a delay vector; a Doppler vector; a reference signal received power (RSRP) ; a path-specific RSRP (RSRPP) ; a reference signal timing difference (RSTD) ; a time of arrival (TOA) ; a user equipment (UE) timing difference between transmission and reception; one or more Doppler measurement results; a channel impulse response (CIR) ; a power delay profile (PDP) ; timing difference between two RS resources within one RS resource set, or between two RS resource sets; and/or a channel correlation property between two RS occasions of a same RS resource or between two RS resource sets.
  • CIR channel impulse response
  • PDP power delay profile
  • the feedback can include at least one of the following: a first part including CIR or PDP or delay profile (DP) information of a first or strongest set of non-zero power paths, and a number of remaining non-zero power paths, and a second part comprising CIR or PDP or DP information of the remaining non-zero power paths; a first part comprising CIR or PDP or DP information of a first set of resources or antennas of a transmission-reception point (TRP) , and a number of remaining resources or antennas, and a second part comprising CIR or PDP or DP information of the remaining resources or antennas; a first part comprising CIR or PDP or DP information of a first slot, and a number of remaining slots, and a second part comprising CIR or PDP or DP information of the remaining slots; and/or a first part comprising CIR or PDP or DP information of a first set of TRPs or frequency layers or component carriers (CCs) , and a second part
  • CP
  • a first network node e.g., LMF in solution 1, or SF (first network unit)
  • SF first network unit
  • a measurement request or configuration of a RS for at least a first measurement usage (e.g., positioning)
  • the second network node e.g., LMSF in solution 1; LMF in solution 2 .
  • the second network node e.g., LMSF in solution 1; second network unit (e.g., LMF) in solution 2) can send/transmit one or more measurement requests or configurations of at least one RS for a first measurement usage (e.g., sensing) and a second measurement usage (e.g., positioning) to the wireless communication node or the wireless communication device (e.g., UE) .
  • a first measurement usage e.g., sensing
  • a second measurement usage e.g., positioning
  • a third network node (e.g., SF in solution 1) can send/transmit a measurement request or configuration of a RS for a second measurement usage (e.g., sensing) to the second network node.
  • the second network node or the wireless communication node can determine a configuration of a common RS that is common or for both the first measurement usage and the second measurement usage.
  • the wireless communication node can send/transmit the common RS.
  • the wireless communication node can report the configuration of the common RS to the second network node.
  • the second network node can send/transmit the configuration of the common RS to the wireless communication device.
  • the first measurement usage can correspond to positioning
  • the second measurement usage can correspond to sensing.
  • the at least one measurement request can be grouped.
  • each of the at least one measurement request can be associated with a respective RS resource or resource set for a respective measurement usage.
  • the respective measurement usage can correspond to sensing or positioning.
  • a respective measurement request can indicate that a corresponding measurement report unit is to include at least one of the following: Doppler information, timing or path information, a reference signal received power (RSRP) , a path-specific RSRP (RSRPP) , angle information, or at least one range thereof.
  • RSRP reference signal received power
  • RRPP path-specific RSRP
  • the wireless communication device can send/transmit one or more measurement results to the second network node.
  • the wireless communication device can indicate one or more associated measurement usages for one or more measurement units of the one or more measurement results.
  • the second network node can communicate with different network nodes for performing authentication or authorization for sensing function and positioning function, respectively.
  • the second network node can forward the one or more measurement results to at least one of the first network node or the third network node.
  • the request can be a request for a desired portion of sensing or positioning measurement results related to the wireless communication device (e.g., UE) .
  • the second network node can communicate with another network node to perform an authentication or authorization check in response to the request.
  • the second network node can send/transmit a response to the request to indicate whether the desired portion of sensing or positioning measurement results can be provided to the wireless communication node.
  • the second network node or the wireless communication node can send/transmit a message to the wireless communication device to report the desired portion directly to the wireless communication node.
  • the wireless communication device can report a first part of the desired portion directly to the wireless communication node.
  • the wireless communication device can report a second part of the desired portion to the second network node.
  • the request or the response can include at least one of the following specific to the desired portion of the sensing or positioning measurement results: a resource identifier (ID) ; a resource set ID; a transmit-reception point (TRP) ID; a cell IDS; frequency information; a measurement characteristic; a channel impulse response (CIR) or power delay profile (PDP) or delay profile (DP) ; or channel correlation information between different time occasions.
  • ID resource identifier
  • TRP transmit-reception point
  • DP delay profile
  • the wireless communication node can transmit/send a plurality of sets of assistance information or measurement requests for one RS resource or resource set, each set including a respective indication of at least one of: an expected timing of the RS, or an uncertainty range for different usages to the wireless communication device.
  • a wireless communication device can receive information from a second network node or a wireless communication node, including at least one of the following: at least one list of candidate frequency domain vectors; at least one list of restricted candidate frequency domain vectors; at least one list of candidate time domain vectors; at least one list of restricted candidate time domain vectors; at least one list of candidate spatial domain vectors; at least one list of restricted candidate spatial domain vectors, or a corresponding timestamp or time duration for at least one list thereof.
  • the term “restricted” may refer to limitations placed on the candidate frequency domain vectors.
  • the limitations can include, but are not limited to, a predefined frequency/time domain range/restriction/exclusion, a predefined list of approved/selected/chosen vectors based on validity, availability or other parameters, or other considerations such as power limitations or signal robustness, among others.
  • the wireless communication node can receive information from a second network node, including at least one of the following: the at least one list of candidate frequency domain vectors; the at least one list of restricted candidate frequency domain vectors; the at least one list of candidate time domain vectors; the at least one list of restricted candidate time domain vectors; the at least one list of candidate spatial domain vectors; or the at least one list of restricted candidate spatial domain vectors, or the corresponding timestamp or time duration of at least one list thereof.
  • the wireless communication device can send/transmit the information selected from the candidate vectors in the corresponding time stamp or time duration to the second network node.
  • the wireless communication node can send/transmit codebook configuration information of the wireless communication device to the second network node.
  • the codebook configuration information can include an indication of at least one of the following: a time, a frequency or time domain vector length, one or more oversampling factors, or an antenna configuration.
  • each list of the at least one list can correspond to a respective usage (e.g., CSI feedback, sensing) .
  • each set of the plurality of sets of oversampling factors can correspond to a respective usage.
  • each list of the at least one list can correspond to a respective RS resource level or RS resource set level or RS configuration level.
  • a second network node e.g., SF or another core network (CN) function
  • a request for feedback e.g., CSI feedback; a new physical layer report for beam management; sensing/positioning results
  • RS reference signal
  • the second network node can send/transmit a response to the request to the wireless communication node.
  • the wireless communication node can receive the feedback based on the RS from a wireless communication device (e.g., UE) or the second network node.
  • the systems and methods of the present disclosure are applicable to various aspects of wireless communication systems.
  • the system of the technical solution disclosed herein can support integrating measurement reports and requests, reducing latency, and/or optimizing resource usage, according to at least one of the following example configurations (e.g., features or solutions) :
  • Example configuration 1 Sending a Request Message from BS to SF/LMF.
  • Example configuration 2 Combining the Measurement Request and/or Report from Positioning and Sensing.
  • FIG. 11 illustrates an example arrangement/configuration of report measurement results for different network units, in accordance with some embodiments of the present disclosure
  • FIG. 12 illustrates an example arrangement/configuration of joint processing for sensing and positioning, in accordance with some embodiments of the present disclosure
  • FIG. 13 illustrates an example arrangement/configuration of joint reporting for sensing and positioning, in accordance with some embodiments of the present disclosure
  • FIG. 14 illustrates another example arrangement/configuration of joint processing for sensing and positioning, in accordance with some embodiments of the present disclosure
  • FIG. 15 illustrates yet another example arrangement/configuration of joint processing for sensing and positioning, in accordance with some embodiments of the present disclosure
  • FIG. 16 illustrates an example arrangement/configuration for sensing or positioning to assist communication with low latency, in accordance with some embodiments of the present disclosure.
  • FIG. 17 illustrates a flow diagram of an example method for performing sensing, beam management, channel state information, and/or positioning, in accordance with an embodiment of the present disclosure.
  • 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.
  • 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.
  • NB-IoT narrowband Internet of things
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • the 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.
  • system 200 may further include any number of modules other than the modules shown in FIG. 2.
  • modules other than the modules shown in FIG. 2.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • 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.
  • LTE Long Term Evolution
  • 5G 5G
  • 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.
  • eNB evolved node B
  • 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.
  • PDA personal digital assistant
  • 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.
  • 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 multiple microprocessors in conjunction with a digital signal processor core, or any other such configuration.
  • 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.
  • 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.
  • 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.
  • 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 communicate with the base station 202.
  • network communication module 218 may be configured to support internet or WiMAX traffic.
  • 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.
  • the network communication module 218 may include a physical interface for connection to the computer network (e.g., Mobile Switching Center (MSC) ) .
  • MSC Mobile Switching Center
  • 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.
  • a first layer may be a physical layer.
  • a second layer may be a Medium Access Control (MAC) layer.
  • MAC Medium Access Control
  • a third layer may be a Radio Link Control (RLC) layer.
  • a fourth layer may be a Packet Data Convergence Protocol (PDCP) layer.
  • PDCP Packet Data Convergence Protocol
  • a fifth layer may be a Radio Resource Control (RRC) layer.
  • 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.
  • NAS Non-Access Stratum
  • IP Internet Protocol
  • the ISAC can provide a sensing function (SF) .
  • SF sensing function
  • a mobile node or device can measure the reflected sensing signal and report the sensing results to a sensing function (SF) .
  • the SF can compute and determine the presence, location, and/or shape of the sensing targets. For each sensing target or sensing environment object, a plurality of paths of reflected sensing signals may be detectable and reported to SF.
  • the measurement report overhead can be huge/significant or unaffordable for the communication (e.g., 5G-A/6G) system.
  • a wireless communication system e.g., 5G-A/6G
  • the wireless communication system can aggregate the sensing measurement data from other sensing technologies (such as cameras, radars, etc. ) to jointly provide sensing services.
  • wireless sensing can operate similarly to radar, using reflected signals to detect the presence, location, and/or velocity of the sensing target, as illustrated in FIGS. 3 and 4.
  • a base station (BS) and/or user equipment (UE) can transmit multiple signal resources for different beams and receive the reflected signals from a strong beam.
  • a BS and/or UE can transmit multiple signal resources for different beams.
  • Another BS and/or UE can receive the reflected signals and perform sensing measurements in the direction of the strong beam.
  • the UE can receive positioning reference signals from multiple TRPs, e.g., from gNB0 and/or gNB1, as illustrated in FIG. 5, and can report the measurement results to LMF.
  • the base stations can receive positioning reference signals from the UE and report the measurement results to LMF via LPP signaling.
  • the measurement results can include, but are not limited to, RSRP/RSRPP, timing of arrival (e.g., TOA, TDOA, Rx-Tx timing difference) , AOA, resource ID (or beam ID) , and/or TRP ID.
  • beam sweeping can be used for the high-frequency band. For example, multiple beams can be transmitted by the transmitter side to get/achieve high beam-forming gain.
  • a staggered RS pattern for positioning can be adopted/employed/configured in NR, as illustrated in FIG. 6.
  • SSB and/or CSI-RS can be used for beam management, similar to the approach used in beam sweeping for sensing and/or positioning.
  • the serving cell can transmit multiple beams, and the UE can select and/or report one or more best/optimal beam IDs along with the corresponding RSRP.
  • the measurement results can include, but are not limited to, RSRP, resource ID (or beam ID) , and/or probably TRP ID (or cell ID) .
  • one or more CSI resources with multiple antenna ports can be configured for UE.
  • the UE can measure the CSI-RS resources and report the CSI information, including RI, PMI, and/or CQI.
  • eight ports of CSI-RS are for instance used for CSI measurement, where four ports are multiplexed in one CDM group.
  • the UE may not need to report anything, as the use case is configured for tracking, for example, to get/obtain Doppler and delay tracking on the UE side.
  • NR CSI-RS with a single port for tracking may serve different purposes.
  • the UE can conduct separate measurements for different RS and, if necessary/required, can separately report the measurement results. In some implementations, this may affect system overhead from the RS and/or measurement report perspectives.
  • sensing results can be reported to the core network, which can be transparent to the BS, causing large/significant latency.
  • resource allocation or scheduling can be done by the BS at the physical layer or MAC layer. In some implementations, it may be challenging for the BS to schedule based on sensing results.
  • the UE in NR, based on multi-port CSI-RS resources for CSI feedback, the UE can do/perform the measurement and report the CSI via the quantized CSI codebook.
  • the configuration can be useful/beneficial for FDD systems, as the UL and/or DL channels are unsymmetrical.
  • the codebook structure can be as follows:
  • S DFT is the spatial domain vectors or selected spatial domain vectors among transmit antenna ports from the candidate spatial domain vectors
  • F DFT is the frequency domain vectors or selected frequency domain vectors among frequency Res, RBs, or subbands from the candidate frequency domain vectors
  • T DFT is the Doppler domain vectors or selected Doppler domain vectors from the candidate Doppler domain vectors
  • C S, F, T (e.g., corresponds to or is analogous to RSRP) is the matrix for scaling factors of the selected three-dimensional vectors.
  • the UE can provide feedback on the indices of three domain vectors and/or the scaling factors for the C S, F, T matrix.
  • the report overhead can reach or amount to hundreds of bits for example.
  • the periodic CSI-RS can be transmitted for UEs with high speed/frequency, causing a large RS overhead.
  • a configuration can define CSI feedback based on RS with usage other than CSI measurement.
  • CSI feedback can include PMI.
  • RS used for functions other than CSI measurement can refer to RS used for other purposes, such as sensing, positioning, beam management, RRM, tracking, or time/frequency synchronization.
  • RS can be an RS configured for or associated with a single port.
  • RS can include/occupy (or extend over) multiple symbols, for example, for sensing RS, positioning RS, tracking RS, and/or time/frequency synchronization.
  • BS or SF can configure the UE to provide feedback via a new CSI report, which includes a new type of PMI.
  • the new type of PMI can include Doppler vectors, Doppler vectors with their corresponding scaling factor matrix, delay vectors, delay vectors with their corresponding scaling factor matrix, Doppler vectors and delay vectors, and/or Doppler vectors, delay vectors, and their corresponding scaling factor matrix.
  • the BS can get/obtain/receive channel information in the Doppler and/or frequency domain.
  • the CSI-RS time periodicity can be configured sparsely since/because the Doppler information can be achieved through other/another type of RS.
  • the CSI-RS frequency domain density can be reduced because the frequency domain information can be achieved/obtained through other/another type of RS.
  • the new CSI feedback can include one or more CQI or RSRP values corresponding to the PMI.
  • positioning or sensing services can be triggered/initiated by the core network or UE itself.
  • measurement and/or reporting can involve privacy issues.
  • getting/obtaining authentication or authorization from the core network or the UE can be advisable/useful.
  • the procedure can follow one or more steps.
  • the BS can send/transmit a request message to SF or another network unit to enable the network to permit/allow the UE to report CSI based on sensing RS.
  • the BS can transmit a request message to LMF or another network unit to enable the network to allow/admit/permit the UE to report CSI based on positioning RS.
  • the request message can include at least one of the following elements:
  • ⁇ RS information e.g., resource IDs, resource set IDs, beam, or direction.
  • ⁇ CSI report types e.g., Doppler vectors, Doppler vectors with their corresponding scaling factor matrix, delay vectors, delay vectors with their corresponding scaling factor matrix, Doppler vectors and delay vectors, and/or Doppler vectors, delay vectors, and their corresponding scaling factor matrix.
  • Reporting type/scheme e.g., periodicity, semi-persistent, or dynamic.
  • Time stamp or time duration indicating the time at which measurement results are requested.
  • the SF, LMF, or another network unit can perform the authentication and/or authorization check.
  • the SF, LMF, or another network unit can transmit a response to the request.
  • the responding entity can confirm the request. Otherwise, the responding entity can reject the request or reject part of the request.
  • the responding entity can allow/enable a portion of the positioning RS resources to be used for physical layer CSI measurement.
  • the response information can include at least one of the following:
  • the allowed (e.g., valid/permitted/authorized/available) RS information e.g., resource IDs, resource set IDs, beam, or direction.
  • the measurement result types e.g., one or more of RSRP, RSRPP, RSTD, TOA, UE Rx-Tx timing difference, Doppler measurement results, CIR, or PDP.
  • Time stamp or time duration i.e., indicating the time at which measurement results are requested.
  • Step 2 The SF, LMF, or another network unit can perform the authentication and/or authorization check.
  • Step 3 The SF, LMF, or another network unit can send/transmit the response to the request.
  • the responding entity can confirm the request. Otherwise, the responding entity can reject the request or reject part of the request.
  • the responding entity can allow/enable a portion of positioning (or other type of) RS resources to be used for physical layer CSI measurement.
  • the response information can include at least one of the following elements:
  • the RS configuration information e.g., resource IDs, resource set IDs, beam, direction, TRP ID, frequency layer information, etc.
  • the measurement result types e.g., one or more of RSRP, RSRPP, RSTD, TOA, UE Rx-Tx timing difference, and/or Doppler measurement results.
  • Reporting type/scheme e.g., periodicity, semi-persistent, or dynamic.
  • Time stamp or time duration indicating the time at which measurement results are requested.
  • Step 4a The SF, LMF, or another network unit can send/transmit the allowed results (e.g., allowed sensing results or positioning results) to the BS.
  • allowed results e.g., allowed sensing results or positioning results
  • Step 4b the BS or SF or LMF or another network unit can send a request for the UE.
  • the UE can report the allowed results (e.g., allowed sensing results or positioning results) to the BS via physical layer, MAC signaling, or RRC signaling.
  • a BS can send/transmit a request message to get/obtain specific type (s) of results (e.g., positioning results) .
  • the request message can include a TRP ID and/or a PRS resource set ID.
  • the BS can schedule the UE to feedback the positioning results of the TRP and/or PRS resource set to the BS.
  • a BS can send/transmit a request message to get/obtain other type (s) of results, e.g., sensing results.
  • the interaction between the SF and BS may be based on NAS signaling, the latency of the interaction may be too large/significant.
  • a BS can send/transmit a request message to get/obtain sensing results.
  • the BS can schedule the UE to feedback the sensing results between time stamp ‘c’ and ‘d’ , or a duration even shorter than between ‘c’ and ‘d’ , via physical layer, MAC signaling, or RRC signaling.
  • the measurement result type (e.g., in the new feedback) for sensing or positioning or other usage/purpose can be CIR (channel impulse response) or PDP (power delay profile) information or DP (delay profile) . If UE is configured or scheduled to feedback CIR or PDP or DP to the BS, the CIR or PDP or DP report information can be grouped into at least two parts.
  • ⁇ Report part 1 can include at least: CIR/PDP/DP information about the first/strongest non-zero power path (e.g., among a plurality of paths that has non-zero power values/metrics) , and the number of all other non-zero power paths.
  • ⁇ Report part 2 can include at least: CIR/PDP/DP information of all other non-zero power paths.
  • CIR for a path can mean/represent/include the amplitude and phase of the path
  • PDP for a path can mean/represent/include the amplitude of the path
  • DP mean/represent/include the time domain sample indices with non-zero power.
  • ⁇ Report part 1 can include at least: the CIR/PDP/DP of a first resource or antenna (s) of a TRP, and the number of other resources or antennas for CIR/PDP/DP report.
  • ⁇ Report part 2 can include at least: CIR/PDP/DP information of all other resources or antennas of the TRP.
  • ⁇ Report part 1 can include at least: the CIR/PDP/DP of a first slot, and the number of other slots for CIR/PDP report.
  • ⁇ Report part 2 can include at least: CIR/PDP/DP information of all other slots.
  • the further enhanced type II codebook in 5G-Acan be shown/represented in formula (1-1) .
  • the following formula (1-2) which is the same/similar as (1-1) , can also represent it:
  • W1, W f , and W d refer to the spatial domain vector, frequency domain vector, and time domain vector, respectively. is the matrix for scaling factors of selected three-dimensional vectors.
  • the motivation for MIMO CSI feedback based on the codebook can overlap with sensing or positioning to some extent.
  • CSI feedback based on the type II codebook can be used for sensing and/or positioning.
  • the number of candidates for the frequency domain vectors and time domain vectors can be too large/significant to make the system affordable due to the corresponding UL feedback overhead.
  • the frequency domain vectors and time domain paths can be associated via one-to-one mapping.
  • downlink channel path/delay information can be achieved/obtained based on the positioning/sensing reference signal measurement.
  • the selection of frequency domain vectors can be based on sensing RS or positioning RS and is not limited to CSI-RS for CSI feedback.
  • one configuration/solution can be to provide a list of (e.g., allowed/available/valid/approved) candidate frequency domain vectors or a list of restricted (e.g., unallowed/unavailable/invalid/non-approved) candidate frequency domain vectors.
  • the SF, LMF, or another network unit can provide a list of candidate or restricted candidate frequency domain vectors for a UE to a BS.
  • the LMF, SF, or core network unit can determine the environment scenario, location of the UE, and/or the path/delay information between the UE and the BS.
  • PMI feedback can be based on the measurement multi-port CSI-RS resources.
  • W 1 can include spatial vectors, e.g., DFT vectors used for multiple transmission antenna ports. However, spatial domain vectors are not reported at the UE side.
  • one configuration/solution can be to report spatial domain vectors based on a 1-port RS resource.
  • the vector length can be based on the UE antenna configuration. For example, the vector length can be N/2, where N is the number of UE antennas.
  • the codebook structure can remain the same as in formula (1-1) or (1-2) , where W f or W d may or may not be reported.
  • a new codebook structure is shown in FIGS. 1 to 3, as shown below:
  • the measurement results are to be reported to different network units for different purposes.
  • the UE can report measurement results to LMF, SF, and/or BS based on the same set of RS resources.
  • the BS can report the measurement results to LMF and/or SF.
  • report overhead can be huge/significant since part of the results reported to different network units can be similar/duplicative.
  • one or more sensing RS resources can be configured to a UE. Based on the measurement of those resources, the UE can report a plurality of measurement units to SF or BS, where each measurement unit can include at least one of the following metrics: one or more of RSRPP (per path RSRP) or RSRP; one or more of timing information, e.g., timing of arrival (TOA) , timing difference of arrival (TDOA) , or Rx-Tx timing difference; one or more of Doppler information or speed or phase rotation; one or more of angle of arrival (AOA) ; and/or one or more of angle of departure (AOD) .
  • RSRPP per path RSRP
  • RSRP RSRP
  • timing information e.g., timing of arrival (TOA) , timing difference of arrival (TDOA) , or Rx-Tx timing difference
  • TOA timing of arrival
  • TDOA timing difference of arrival
  • AOD angle of departure
  • one or more positioning RS resources can be configured to a UE. Based on the measurement of those resources, the UE can report a plurality of measurement units to LMF or BS, where each measurement unit can include the same or similar metrics.
  • a common RS can be designed for sensing and/or positioning to reduce RS transmission overhead.
  • ⁇ LMF (e.g., a third network node) can request or recommend positioning-related reference signal configurations to LSMF, as illustrated in FIG. 12.
  • ⁇ SF (e.g., a third network node) can request or recommend sensing-related reference signal configurations to LSMF.
  • ⁇ LSMF (e.g., a second network node) can request or recommend positioning-related reference signal configuration to BSs.
  • ⁇ BSs can determine the RS configuration that is common for sensing and/or positioning and transmit the common RS.
  • ⁇ BSs can report the common RS configuration to LSMF.
  • ⁇ LSMF can inform UE about the common RS configuration.
  • ⁇ LMF can send/transmit the positioning measurement request to LSMF.
  • ⁇ SF can send/transmit the sensing measurement request to LSMF.
  • ⁇ LSMF can send/transmit the location measurement request to UE, considering and balancing (e.g., prioritizing and/or combining) between the LMF and/or SF requests.
  • the measurement request can be for each common RS resource or resource set.
  • the measurement requests can be grouped and associated with different common RS resources or resource sets.
  • the measurement request can include at least one of the following:
  • One aspect of the measurement function is usage, whether for sensing or positioning, can be indicated/specified. For example, for each common RS resource or resource set, the measurement request can indicate if it is for sensing, positioning, or both types of measurements.
  • the measurement report unit is to include one or more of the information elements, such as Doppler information, timing/path information, RSRPP, angle, RSRP, or one or more ranges of one or more of the above elements (e.g., one Doppler range can be [0, 20] Hz) .
  • the information elements such as Doppler information, timing/path information, RSRPP, angle, RSRP, or one or more ranges of one or more of the above elements (e.g., one Doppler range can be [0, 20] Hz) .
  • ⁇ UE can report the measurement results (e.g., via a BS) to LSMF, as illustrated in FIG. 13 for instance.
  • the UE can further report whether it is for sensing, positioning, or both.
  • ⁇ LSMF can interact with another/other network units for authentication and/or authorization for positioning functions and/or sensing functions, respectively.
  • ⁇ LSMF can split the results and forward the related/relevant/corresponding results to LMF and/or SF, respectively.
  • the measurement results for resource 1 can be reported to LMF
  • the measurement results for resource 2 can be reported to SF.
  • the LSMF can report the measurement results of paths 1-10 to LMF and the results of paths 1-5 to the SF. It is to be noted that the results for LMF and SF can be overlapped.
  • one of the core network functions may interface with one or more base stations (e.g., on behalf of an least one other core network function) .
  • a first network unit or node e.g., SF, as illustrated on the left side of FIG. 14
  • a second network unit or node e.g., LMF, as illustrated on the left side of FIG. 14
  • the first network unit can transmit the request/recommendation to the second network unit via an intermediate network unit, e.g., AMF.
  • the roles of the two network units can be swapped/exchanged.
  • the LMF e.g., the first network unit in this example
  • the SF e.g., the second network unit in this example
  • the second network unit can request or recommend positioning and/or sensing-related reference signal configurations to BSs.
  • the reference signal can be common or shared for sensing and/or positioning.
  • ⁇ BSs or the second network unit can determine the RS configuration (e.g., of a common RS) , which can be common for and/or used for sensing and/or positioning (as examples) , and can transmit the common RS.
  • the RS configuration e.g., of a common RS
  • the second network unit can determine the RS configuration (e.g., of a common RS) , which can be common for and/or used for sensing and/or positioning (as examples) , and can transmit the common RS.
  • ⁇ BSs can report the common RS configuration to the second network unit.
  • the second network unit can inform UE about the common RS configuration.
  • the first network unit can send/transmit the sensing measurement request to the second network unit. It is to be noted that the first network unit can transmit the request/recommendation to the second network unit via an intermediate network unit, e.g., AMF.
  • an intermediate network unit e.g., AMF.
  • the second can send/transmit the location measurement request to UE, considering and balancing for sensing and/or positioning requests.
  • the measurement request can be for each common RS resource or resource set.
  • the measurement requests can be grouped and associated with different common RS resources or resource sets for different purposes /measurement usages.
  • the measurement request can include at least one of the following:
  • One aspect of the measurement function is usage, whether for sensing or positioning, can be indicated/specified/configured. For example, for each common RS resource or resource set, the measurement request can indicate if it is for sensing, positioning, or both measurements.
  • the measurement report unit is to include one or more of the information elements, such as Doppler information, timing/path information, RSRPP, angle, RSRP, or one or more ranges of one or more of the above elements (e.g., one Doppler range can be [0, 20] Hz) .
  • the information elements such as Doppler information, timing/path information, RSRPP, angle, RSRP, or one or more ranges of one or more of the above elements (e.g., one Doppler range can be [0, 20] Hz) .
  • ⁇ UE can report the measurement results to the second network (e.g., SF) unit, as illustrated on the right side of FIG. 14.
  • the UE can further report whether it is for sensing, positioning, or both.
  • the second network unit can interact with another/other network unit for authentication or authorization for positioning functions and/or sensing functions, respectively.
  • the first and/or second network units can interact with another/other network unit for authentication or authorization.
  • the second network unit can forward related results to the first network unit (e.g., LMF) .
  • the first network unit can be SF, and the second network unit can be LMF.
  • the first network unit can be LMF, and the second network unit can be SF, as illustrated in FIG. 15.
  • the UE can directly report the positioning measurement results to the LMF via NAS signaling, as the LMF can be located in the core network. Due to security or privacy issues, the report results can be transparent to gNB, and, as a result, gNB may not be aware of the positioning measurement results. For sensing, a similar procedure may be used, as the SF may also be located in the core network. Since the LMF, SF, or LSMF are located in the core network, the transmission latency between UE and/or the LMF/SF/LSMF can be large/significant.
  • multiple steps can be implemented to address latency issues, as illustrated in FIG. 16.
  • Step 1 Request from BS to LSMF/LMF/SF.
  • ⁇ BS can send/transmit a request for sensing or positioning measurement results related to a UE.
  • the BS can be the serving cell of the UE.
  • the request can include at least one of the following: resource ID, resource set ID, TRP ID, cell ID, frequency information, measurement characteristic (e.g., including one or more of RSRP, timing, Doppler, and angle) , CIR/PDP, and/or the channel correlation information between different time occasions.
  • the BS can request partial or interested sensing/positioning results to assist in communication (e.g., BM) or mobility management.
  • the BS can request one TRP’s positioning/sensing results.
  • the BS can request the RSRP results of some PRS resources of one TRP.
  • Step 2 LSMF/LMF/SF can interact with another/other network unit for authorization/authentication.
  • ⁇ LSMF/LMF/SF can interact with other/another network unit for authorization/authentication, e.g., with UDM, to check whether transmitting a portion of sensing/positioning results to the BS is allowed/permitted/configured, indicating the requested sensing results.
  • authorization/authentication e.g., with UDM
  • Step 3 LSMF/LMF/SF can respond to a request from the BS to inform the BS whether and/or which requested sensing/positioning results can be delivered to the BS.
  • the request can include at least one of the following: resource ID, resource set ID, TRP ID, cell ID, frequency information, measurement characteristic (e.g., including one or more of RSRP, timing, Doppler, angle) , and/or CIR/PDP/DP.
  • resource ID resource set ID
  • TRP ID cell ID
  • frequency information e.g., including one or more of RSRP, timing, Doppler, angle
  • measurement characteristic e.g., including one or more of RSRP, timing, Doppler, angle
  • CIR/PDP/DP CIR/PDP/DP
  • Step 4 LSMF/LMF/SF or BS can request the UE to report some of the sensing/positioning measurement results directly to gNB via RRC signaling, physical layer signaling, MAC signaling, or NAS signaling.
  • the BS can quickly get/obtain some useful sensing/positioning results from the UE, significantly reducing latency.
  • the report sensing/positioning results can be limited/specific to some TRPs or some RS resources, referred to as result set A’ .
  • Step 5 UE can report sensing/positioning measurement result set A directly to gNB via RRC signaling, physical layer signaling, MAC signaling, or NAS signaling.
  • the BS can quickly get some useful sensing/positioning results from the UE, significantly reducing latency.
  • the report sensing/positioning results can be limited to some TRPs or some RS resources, referred to as result set A.
  • set A can be different from set A’ , as the UE may not be able to get/obtain some results of set A’ .
  • Step 6 UE can report the sensing/positioning measurement result set B to the LSMF/LMF/SF.
  • set B includes set A.
  • set B does not include set A.
  • BS is to forward the set A results to LSMF/LMF/SF.
  • more than one (e.g., M > 1) set of measurement request signaling or assistance data signaling can be indicated.
  • M > 1 set of assistance data signaling or measurement request signaling can be indicated.
  • each set of assistance data signaling or measurement request signaling can include ⁇ RS expected timing, uncertainty ⁇ , indicating that the UE can expect to measure/determine the RS at the time of RS expected timing, with an uncertain range of uncertainty.
  • the multiple sets (e.g., M sets) can be for different purposes. For example, one set can be for positioning, and another/other set can be for sensing.
  • the method 1700 may include a wireless communication node sending a request for feedback based on a reference signal (RS) (STEP 1702) .
  • the method may include the wireless communication node receiving a response to the request from the second network node (STEP 1704) .
  • the method may include the wireless communication node receiving the feedback based on the RS from the second network or a wireless communication device (STEP 1706) .
  • RS reference signal
  • the method may include the second network node receiving the request for feedback based on RS (STEP 1708) .
  • the method may include the second network node sending the response to the request (STEP 1710) .
  • the method may include the second network node sending the feedback based on the RS (STEP 1712) .
  • the method may include the wireless communication device sending the feedback based on the RS (STEP 1714) .
  • a wireless communication node e.g., BS
  • RS reference signal
  • CN core network
  • the wireless communication node can receive/acquire/obtain a response to the request from the second network node (STEP 1704) .
  • the wireless communication node can receive/acquire/obtain the feedback based on the RS from a wireless communication device (e.g., a UE (as a sensing receiver device) ) or the second network node (STEP 1706) .
  • the second network node can include a sensing function (SF) , a location management function (LMF) , a combination of the sensing function and the positioning function, or another function of core network.
  • the RS can include at least one of the following: a RS having a usage other than for measurement of channel state information (CSI) ; a RS having a usage other than for beam management; a RS for sensing; a RS for locationing/positioning; a RS for beam management; a RS for radio resource management (RRM) ; a RS for tracking; a RS for time or frequency synchronization; and/or a RS of only one port.
  • CSI channel state information
  • RRM radio resource management
  • the feedback can include at least one of the following: one or more Doppler vectors; one or more Doppler vectors and a corresponding scaling factor matrix; one or more delay vectors; one or more delay vectors and a corresponding scaling factor matrix; one or more Doppler vectors and one or more delay vectors; and/or one or more Doppler vectors, one or more delay vectors, and a corresponding scaling factor matrix.
  • the RS is the RS of one port.
  • the request or response can include at least one of the following: information of the RS including at least one of the following: one or more resource identifiers (IDs) , one or more resource set IDs, an indication of a beam, an indication of a direction, an identifier of a transmit-reception point (TRP) , frequency layer information, or other information about the RS; an indication of one or more measurement result types of reporting; an indication of periodic, semi-persistent or aperiodic type of reporting; and/or time stamp or time duration of measurement results.
  • IDs resource identifiers
  • TRP transmit-reception point
  • the wireless communication node can determine that/whether the response confirms or allows part or all of the request.
  • the wireless communication node or the second network node can send/transmit/provide a radio access network (RAN) level measurement request including at least one of the following: a configuration for the RS, or one or more types of reports (e.g., Doppler vectors, Doppler vectors and the corresponding scaling factor matrix, delay vectors, delay vectors and the corresponding scaling factor matrix, Doppler vectors and delay vectors, or Doppler vectors, delay vectors, and corresponding scaling factor matrix) to be included in the feedback to the wireless communication device.
  • RAN radio access network
  • the second network node can directly perform an authentication or authorization check in response to the request or can request another network node to perform an authentication or authorization check in response to the request.
  • the one or more measurement result types of reporting, to be included in the feedback can include an indication of at least one of the following: a frequency vector; a delay vector; a Doppler vector; a reference signal received power (RSRP) ; a path-specific RSRP (RSRPP) ; a reference signal timing difference (RSTD) ; a time of arrival (TOA) ; a user equipment (UE) timing difference between transmission and reception; one or more Doppler measurement results; a channel impulse response (CIR) ; a power delay profile (PDP) ; timing difference between two RS resources within one RS resource set, or between two RS resource sets; and/or a channel correlation property between two RS occasions of a same RS resource or between two RS resource sets.
  • CIR channel impulse response
  • PDP power delay profile
  • the feedback can include at least one of the following: a first part including CIR or PDP or delay profile (DP) information of a first or strongest set of non-zero power paths, and a number of remaining non-zero power paths, and a second part comprising CIR or PDP or DP information of the remaining non-zero power paths; a first part comprising CIR or PDP or DP information of a first set of resources or antennas of a transmission-reception point (TRP) , and a number of remaining resources or antennas, and a second part comprising CIR or PDP or DP information of the remaining resources or antennas; a first part comprising CIR or PDP or DP information of a first slot, and a number of remaining slots, and a second part comprising CIR or PDP or DP information of the remaining slots; and/or a first part comprising CIR or PDP or DP information of a first set of TRPs or frequency layers or component carriers (CCs) , and a second part
  • CP
  • a first network node e.g., LMF in solution 1, or SF (first network unit)
  • SF first network unit
  • a measurement request or configuration of a RS for at least a first measurement usage (e.g., positioning)
  • the second network node e.g., LMSF in solution 1; LMF in solution 2 .
  • the second network node e.g., LMSF in solution 1; second network unit (e.g., LMF) in solution 2) can send/transmit one or more measurement requests or configurations of at least one RS for a first measurement usage (e.g., sensing) and a second measurement usage (e.g., positioning) to the wireless communication node or the wireless communication device (e.g., UE) .
  • a first measurement usage e.g., sensing
  • a second measurement usage e.g., positioning
  • a third network node (e.g., SF in solution 1) can send/transmit a measurement request or configuration of a RS for a second measurement usage (e.g., sensing) to the second network node.
  • the second network node or the wireless communication node can determine a configuration of a common RS that is common or for both the first measurement usage and the second measurement usage.
  • the wireless communication node can send/transmit the common RS.
  • the wireless communication node can report the configuration of the common RS to the second network node.
  • the second network node can send/transmit the configuration of the common RS to the wireless communication device.
  • the first measurement usage can correspond to positioning
  • the second measurement usage can correspond to sensing.
  • the at least one measurement request can be grouped.
  • each of the at least one measurement request can be associated with a respective RS resource or resource set for a respective measurement usage.
  • the respective measurement usage can correspond to sensing or positioning.
  • a respective measurement request can indicate that a corresponding measurement report unit is to include at least one of the following: Doppler information, timing or path information, a reference signal received power (RSRP) , a path-specific RSRP (RSRPP) , angle information, or at least one range thereof.
  • RSRP reference signal received power
  • RRPP path-specific RSRP
  • the wireless communication device can send/transmit one or more measurement results to the second network node.
  • the wireless communication device can indicate one or more associated measurement usages for one or more measurement units of the one or more measurement results.
  • the second network node can communicate with different network nodes for performing authentication or authorization for sensing function and positioning function, respectively.
  • the second network node can forward the one or more measurement results to at least one of the first network node or the third network node.
  • the request can be a request for a desired portion of sensing or positioning measurement results related to the wireless communication device (e.g., UE) .
  • the second network node can communicate with another network node to perform an authentication or authorization check in response to the request.
  • the second network node can send/transmit a response to the request to indicate whether the desired portion of sensing or positioning measurement results can be provided to the wireless communication node.
  • the second network node or the wireless communication node can send/transmit a message to the wireless communication device to report the desired portion directly to the wireless communication node.
  • the wireless communication device can report a first part of the desired portion directly to the wireless communication node.
  • the wireless communication device can report a second part of the desired portion to the second network node.
  • the request or the response can include at least one of the following specific to the desired portion of the sensing or positioning measurement results: a resource identifier (ID) ; a resource set ID; a transmit-reception point (TRP) ID; a cell IDS; frequency information; a measurement characteristic; a channel impulse response (CIR) or power delay profile (PDP) or delay profile (DP) ; or channel correlation information between different time occasions.
  • ID resource identifier
  • TRP transmit-reception point
  • DP delay profile
  • the wireless communication node can transmit/send a plurality of sets of assistance information or measurement requests for one RS resource or resource set, each set including a respective indication of at least one of: an expected timing of the RS, or an uncertainty range for different usages to the wireless communication device.
  • the limitations can include, but are not limited to, a predefined frequency/time domain range/restriction, a predefined list of approved/selected/chosen vectors that may be based on efficiency or other parameters, or other considerations such as power limitations or signal robustness, among others.
  • the wireless communication node can receive information from a second network node, including at least one of the following: the at least one list of candidate frequency domain vectors; the at least one list of restricted candidate frequency domain vectors; the at least one list of candidate time domain vectors; the at least one list of restricted candidate time domain vectors; the at least one list of candidate spatial domain vectors; or the at least one list of restricted candidate spatial domain vectors, or the corresponding timestamp or time duration of at least one list thereof.
  • the wireless communication device can send/transmit the information selected from the candidate vectors in the corresponding time stamp or time duration to the second network node.
  • the wireless communication node can send/transmit codebook configuration information of the wireless communication device to the second network node.
  • the codebook configuration information can include an indication of at least one of the following: a time, a frequency or time domain vector length, one or more oversampling factors, or an antenna configuration.
  • each list of the at least one list can correspond to a respective usage (e.g., CSI feedback, sensing) .
  • each set of the plurality of sets of oversampling factors can correspond to a respective usage.
  • each list of the at least one list can correspond to a respective RS resource level or RS resource set level or RS configuration level.
  • the second network node can send/transmit the feedback based on the RS to the wireless communication node (STEP 1712) .
  • a wireless communication device e.g., UE (a sensing receiver device)
  • UE a sensing receiver device
  • 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.
  • IC integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • 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 multiple microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
  • 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.
  • 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.
  • module 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 to embodiments of the present solution.
  • memory or other storage may be employed in embodiments of the present solution.
  • memory or other storage may be employed in embodiments of the present solution.
  • any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present solution.
  • functionality illustrated to be performed by separate processing logic elements, or controllers may be performed by the same processing logic element, or controller.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Sont présentés des systèmes et des procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement. Un nœud de communication sans fil peut envoyer une demande de rétroaction basée sur un signal de référence à un second nœud de réseau. Le nœud de communication sans fil peut recevoir une réponse à la demande en provenance du second nœud de réseau. Le nœud de communication sans fil peut recevoir la rétroaction basée sur le signal de référence en provenance d'un dispositif de communication sans fil ou du second nœud de réseau.
PCT/CN2024/081710 2024-03-14 2024-03-14 Systèmes et procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement Pending WO2025189426A1 (fr)

Priority Applications (1)

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PCT/CN2024/081710 WO2025189426A1 (fr) 2024-03-14 2024-03-14 Systèmes et procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement

Applications Claiming Priority (1)

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PCT/CN2024/081710 WO2025189426A1 (fr) 2024-03-14 2024-03-14 Systèmes et procédés pour effectuer une détection, une gestion de faisceau, des informations d'état de canal et un positionnement

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WO2025189426A1 true WO2025189426A1 (fr) 2025-09-18

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