Systems and methods for sensing-assisted initial accessing and quasi co-located communication
The system optimizes SSB configuration and initial access in 6G networks by using sensing-assisted SSB assistance information, enhancing communication efficiency through dynamic parameter adjustment and spatial information exchange.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZTE CORP
- Filing Date
- 2025-01-24
- Publication Date
- 2026-05-15
AI Technical Summary
Existing wireless communication systems face challenges in optimizing initial access and synchronization signal block (SSB) configuration due to the complexity of device collaboration and environmental sensing, particularly in 6G networks, which affect seamless communication among devices.
A system where a wireless communication node receives SSB assistance information from a core network based on sensing data, which includes spatial and quasi co-located (QCL) information to optimize SSB configuration and initial access, using methods like RRC, MAC CE, and DCI signaling.
Enhances environmental perception and prediction capabilities, facilitating improved initial access and SSB configuration by dynamically adjusting communication parameters based on sensing results, thereby optimizing beam direction and reducing reliance on UE measurements.
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Figure CN2025074539_15052026_PF_FP_ABST
Abstract
Description
SYSTEMS AND METHODS FOR SENSING-ASSISTED INITIAL ACCESSING AND QUASI CO-LOCATED COMMUNICATIONTECHNICAL FIELD
[0001] The disclosure relates generally to wireless communications, including but not limited to systems and methods for sensing-assisted initial accessing and quasi co-located communication.BACKGROUND
[0002] Coverage is a key consideration in cellular network deployments. With the rise of interconnected devices, there is a growing focus on effective device communication. The current 3GPP standards, spanning from 3G to 5G and beyond, focus on the importance of seamless communication among various devices, from smart home devices to wearable devices. In industrial settings, the complexity of tasks often requires collaboration. This calls for several cooperative operational management systems, with the aim of creating workgroups and managing different types of devices to complete the required tasks.SUMMARY
[0003] The 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. 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 computer-readable medium. A wireless communication node (e.g., BS, TRP, gNB) can receive synchronization signal block (SSB) assistance information from a core network. The wireless communication node can transmit SSB related spatial information to a wireless communication device (e.g., UE, terminal) . In certain implementations, the SSB assistance information can be based at least on sensing information obtained by an integrated sensing and communication (ISAC) system in an environment of the wireless communication node. The SSB assistance information can include, recommend, or specify at least one SSB related parameter. The core network can transmit the SSB assistance information via protocol signaling to the wireless communication node.
[0005] In certain implementations, the wireless communication node can determine, for the wireless communication device, at least one SSB of a plurality of SSBs, according to the SSB assistance information. The wireless communication node can transmit the at least one SSB (e.g., according / responsive to the determining) to the wireless communication device. In certain implementations, the wireless communication node can transmit a request for the SSB assistance information to the core network. The wireless communication node can receive, from the core network, the SSB assistance information responsive to the request. In certain implementations, the request may include at least one of the following: identification information of the wireless communication node, timing information of an SSB; spatial information of an SSB; an indication of a current SSB configuration of the wireless communication node; known or historical information to help determine the SSB assistance information; current energy consumption information for transmitting an SSB; desired energy consumption for transmitting an SSB; or an indication of capability of the wireless communication node related to providing an SSB.
[0006] In certain implementations, the SSB assistance information may include at least one of the following: identification (ID) information; information about SSB; or information about SSB set. In certain implementations, the ID information may include at least one of the following: ID information of the wireless communication node, ID information of functionality of the core network providing the SSB assistance information, or ID information of signaling that is providing the SSB assistance information. The information about SSB may include at least one of the following: information related to beam direction of an SSB, transmission power of an SSB, quasi colocation (QCL) relationship information of SSBs in an SSB set, frequency location of an SSB, subcarrier spacing of an SSB, time domain location of an SSB, maximum number of different SSBs, or periodicity of an SSB in a serving cell. The information about SSB set may include at least one of the following: periodicity of an SSB set in a serving cell, power allocation information of SSBs in an SSB set, time series relationship of SSBs in an SSB set, or QCL relationship information of SSBs in an SSB set. In certain implementations, the wireless communication node can receive, from the wireless communication device, the SSB assistance information without the wireless communication device requesting or triggering the SSB assistance information.
[0007] In certain implementations, the request can include an indication to provide one or more instances of SSB assistance information over a period of time. The indication may include a recommendation or specification of at least one of the following: the period of time; a maximum number of the instances (e.g., including initial instance and update (s) ) to be provided; a time gap between adjacent instances of SSB assistance information to be provided; or a criterion for triggering an instance of SSB assistance information to be provided. In certain implementations, a subsequent instance of SSB assistance information can be determined according to updated sensing information, including at least one of measured sensing information or predicted sensing information. In certain implementations, the subsequent instance of SSB assistance information can include (e.g., in the original / prior version of SSB assistance information) at least one updated version of the ID information, the information about SSB, or the information about SSB set.
[0008] In certain implementations, the wireless communication node can transmit, to the core network, a report indicating a quality, accuracy, or effectiveness associated with the SSB assistance information. In certain implementations, the wireless communication node can transmit a message to halt providing the SSB assistance information to the core network. The message may include at least one of the following: an identification (ID) of the wireless communication node indicating to halt providing the SSB assistance information, or a reason for indicating to halt providing the SSB assistance information. In certain implementations, the wireless communication node can transmit the SSB related spatial information via at least one of the following: an SSB, a master information block (MIB) , a system information block (SIB) , a defined signal or information, a Msg2 or a Msg4. The wireless communication device can use the SSB related spatial information to determine receiving configuration or parameters (e.g., beam direction) for receiving one or more downlink transmissions. The wireless communication device can use the SSB related spatial information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions. In certain implementations, the SSB related spatial information may include at least one of the following: identification (ID) information related to an SSB, including an identifier of the SSB and / or an SSB burst set; first spatial information related to an SSB; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access.
[0009] In certain implementations, the wireless communication node can transmit the spatial information via a transmitted signal, including at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling. The spatial information can include quasi colocation (QCL) information and other information (e.g., structure of QCL information extended into spatial information) . The wireless communication device can use the spatial information to determine receiving configuration or parameters (e.g., beam direction) for receiving one or more downlink transmissions. The wireless communication device can use the spatial information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions.
[0010] In certain implementations, at least one SSB (e.g., optimized SSB (s) ) of a plurality of SSBs can be determined according to sensing information. The quasi colocation (QCL) information based on the at least one SSB can be transmitted by the wireless communication node via a transmitted signal, including at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling. The wireless communication device can use the QCL information to determine receiving configuration or parameters for receiving one or more downlink transmissions. The wireless communication device can use the QCL information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions. In certain implementations, the spatial information or the QCL information may include at least one of the following: identification (ID) information related to QCL relationship, including an identifier of the QCL relationship; first spatial information related to the transmitted signal; delay and Doppler information related to the transmitted signal; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access.
[0011] In certain implementations, the wireless communication node or the core network can determine information about a virtual signal (e.g., SSB related spatial information) using sensing information. The wireless communication node, or the core network, can transmit the information about the virtual signal via at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling. The wireless communication device can use the information about the virtual signal to determine a receiving configuration or parameters for receiving one or more downlink transmissions. The wireless communication node can indicate the virtual signal as a quasi-colocation (QCL) source or QCL references signal. In certain implementations, the wireless communication node or the core network can determine information about a virtual signal (e.g., SSB related spatial information) using sensing information. The wireless communication node, or the core network, can transmit the information about the virtual signal via at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling. The wireless communication device can use the information about the virtual signal to determine a transmitting configuration or parameters for transmitting one or more downlink transmissions.
[0012] In certain implementations, the information about the virtual signal may include at least one of the following: identification (ID) information, including at least one of the following: an identifier of the virtual signal, an identifier of a serving base station, or an identifier of a UE; first information of the virtual signal; delay and Doppler information of a transmitted signal; first spatial information related to the virtual signal; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access. In certain implementations, the first information may include at least one of the following: time domain location information of the virtual signal; suitable time domain location information of the virtual signal; frequency domain location information of the virtual signal; suitable frequency domain location information of the virtual signal; or power information of the virtual signal. The first spatial information related to the virtual signal may include at least one of the following: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates for the virtual signal on serving base station (e.g., the wireless communication node) side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information for the virtual signal in global coordinates from user equipment (UE) (e.g., the wireless communication device) side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from UE side; antenna weight information for the virtual signal on the serving base station side; codebook information for the virtual signal on the serving base station side; antenna weight information for the virtual signal on the UE side; or codebook information for the virtual signal on the UE side. The delay and Doppler information may include at least one of the following: distance information between the serving base station and the UE related to the virtual signal; delay information between the serving base station and the UE related to the virtual signal; delay spread information between the serving base station and the UE related to the virtual signal; absolute velocity information of the UE related to the virtual signal; relative velocity information of the UE related to the virtual signal; Doppler frequency information of the UE related to the virtual signal; Doppler frequency spread information of the UE related to the virtual signal; or information of environment around the UE and the serving base station related to the virtual signal.
[0013] In certain implementations, the first spatial information may include at least one of the following: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates from serving base station side; relative AoD or ZoD information compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information in global coordinates from user equipment (UE) side; relative AoD or ZoD information compared to a reference angle in global coordinates from UE side; antenna weight information on the serving base station side; codebook information on the serving base station side; recommended antenna weight information on the UE side; or recommended codebook information on the UE side. The delay and Doppler information may include at least one of the following: distance information between the serving base station and the UE; delay information between the serving base station and the UE; delay spread information between the serving base station and the UE; absolute velocity information of the UE; relative velocity information of the UE; Doppler frequency information of the UE; Doppler frequency spread information of the UE; or information of environment around the UE and the serving base station. The second spatial information may include at least one of the following: absolute position of the serving base station in global coordinates; relative position of the serving base station relative to a reference point in local coordinates; relative position of the serving base station relative to a UE in local coordinates; relative azimuth angular information of the serving base station relative to the UE in local coordinates; or relative elevation angular information of the serving base station relative to the UE in local coordinates. The third spatial information may include at least one of the following: absolute position of the UE in global coordinates; relative position of the UE relative to a reference point in local coordinates; relative position of the UE relative to the serving base station in local coordinates; relative azimuth angular information of the UE relative to the serving base station in local coordinates; or relative elevation angular information of the UE relative to the serving base station in local coordinates.
[0014] Another aspect is directed to a system, method, apparatus, or computer-readable medium. A core network can transmit synchronization signal block (SSB) assistance information to a wireless communication node (e.g., BS, TRP, gNB) . The wireless communication node can transmit SSB related spatial information to a wireless communication device (e.g., UE, terminal) .
[0015] Yet another aspect is directed to a system, method, apparatus, or computer-readable medium. A wireless communication device can receive synchronization signal block (SSB) related spatial information from a wireless communication node. The wireless communication node (e.g., BS, TRP, gNB) can receive SSB assistance information from a core network.
[0016] Although the examples provided herein are directed towards utilizing sensing to adjust / improve the initial accessing, synchronization signal block (SSB) , and / or spatial / QCL information, the systems and methods of the present disclosure are applicable to various aspects of communication services in wireless communication (e.g., 6G) systems. For instance, the system of the technical solution disclosed herein can use sensing results to assist in the automatic configuration of communication parameters, thereby facilitating enhanced environmental perception and prediction capabilities, according to at least one of the following example configurations (e.g., features or solutions) :
[0017] ● Example configuration 1: Communication parameters are configured based on sensed environmental data.
[0018] ● Example configuration 2: QCL information is dynamically adjusted to indicate spatial relationships derived from sensing results.
[0019] ● Example configuration 3: The initial access and SSB configuration are optimized using sensing-based reference information.BRIEF DESCRIPTION OF THE DRAWINGS
[0020] 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.
[0021] 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;
[0022] 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;
[0023] FIG. 3 illustrates an example implementation of configuring synchronization signal block (SSB) related parameters, in accordance with some embodiments of the present disclosure;
[0024] FIG. 4 illustrates an example implementation of SSB configuration based on core network processing of sensing information, in accordance with some embodiments of the present disclosure;
[0025] FIG. 5 illustrates an example implementation of obtaining SSB assistance information, in accordance with some embodiments of the present disclosure;
[0026] FIG. 6 illustrates an example implementation of providing SSB assistance information within a time window, in accordance with some embodiments of the present disclosure;
[0027] FIG. 7 illustrates an example arrangement of reporting SSB assistance information, in accordance with some embodiments of the present disclosure;
[0028] FIG. 8 illustrates an example arrangement of aborting acquisition / provision of SSB assistance information, in accordance with some embodiments of the present disclosure;
[0029] FIG. 9 illustrates an example configuration based on a virtual reference signal, in accordance with some embodiments of the present disclosure;
[0030] FIG. 10 illustrates another example configuration based on a virtual reference signal notification, in accordance with some embodiments of the present disclosure; and
[0031] FIG. 11 illustrates a flow diagram of an example method for sensing-assisted initial access and / or quasi co-located communication, in accordance with an embodiment of the present disclosure.DETAILED DESCRIPTION
[0032] 1. Mobile Communication Technology and Environment
[0033] 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 Figure 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.
[0034] 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.
[0035] 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 Figure 1, as described above.
[0036] 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.
[0037] 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 Figure 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.
[0038] 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.
[0039] 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.
[0040] 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 multiple microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0041] 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.
[0042] 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. 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.
[0043] 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.
[0044] 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.
[0045] 2. Systems and Methods for Sensing-Assisted Initial Accessing and Quasi Co-Located Communication
[0046] Sensing systems can be one of the basic / fundamental functions of communication (e.g., 6G) systems, configured to receive / obtain / acquire information of the environment and objects within the environment. The rich-sensed information can provide reference information for the communication system to configure related parameters automatically, with the capability of perceiving and predicting environmental conditions. In certain implementations, sensing can dynamically adjust / optimize / improve the initial access procedure and synchronization signal block (SSB) configuration, as well as the spatial relationship by adjusting / modifying quasi co-located (QCL) information. The technical solutions disclosed herein can configure communication parameters via sensing results.
[0047] In certain embodiments, excluding unintended animals, the normal sensing targets, including humans, vehicles, unmanned aerial vehicles (UAVs) , and the like, are considered by user equipment (UE) that establish communication links with the communication (e.g., 6G) systems. The sensing systems in communication systems can be used / configured / implemented to detect information of targets outside the communication system, such that the UE-related positioning information and velocity information can be detected before initial access to a network. In this manner, the initial access can be optimized / improved / enhanced via the sensing system.
[0048] In certain implementations, sensing systems can detect / determine / identify potential UE (s) arriving at / into the serving cell, such that the communication systems can configure the base station to select one or more SSBs. In current 5G systems, the base station transmits SSBs to assist UEs in performing / operating / implementing initial accessing. While the initial access signal in 5G systems is referred to as SSB, 6G and other communication systems may use another or a different term to denote / represent / indicate the signal. It is to be noted that the technical solutions described herein are not limited to the specific terminology used and may include any terms / names adopted in future discussions that align with the underlying concept.
[0049] In certain implementations, the network operator can generate / determine the detailed aspects of SSB-related parameters, including the ssb-PositionsInBurst, ssb-periodicityServingCell, ssb-SubcarrierSpacing, and other SSB-related parameters. In certain implementations, the communication / 6G systems, via sensing systems, can generate / optimize / update the transmitted SSB parameters based on measured / predicted sensing results. It is to be noted that the temporal / sequence relationships described herein are not restrictive, and any or all parts of information or message transfers can happen / occur in any sequence or order in time. The content and implications of the information / messages, as well as related signaling and any time sequence / pipeline / procedure, including the given information and messages, are encompassed within the scope of protection.
[0050] In certain implementations, the core network can directly configure the SSB-related parameters of base stations using protocol signaling. In certain implementations, as shown in FIG. 3, the configuration can be initiated / started by a request of / from the base station. The core network can collect sensing results (which can be generated by processing 3GPP / non-3GPP sensing data within 6G / communication systems) to generate the configuration of SSB-related parameters for a specific base station and can transfer the generated configuration to the base station.
[0051] In certain implementations, the base station can request SSB assistance information for various reasons, such as having prior information that UE (s) in a specific area are likely to initiate / operate / perform an initial access procedure. In such configurations, the SSB assistance information request message may include at least part of the following information: the identifier information of the base station requesting SSB assistance information based on sensing results; the time information specifying when the SSB configuration is desired / requested to be configured based on SSB assistance information; the spatial information specifying where the SSB is desired / requested to be configured based on SSB assistance information; the current SSB configuration of the requesting base station; the prior information known by a requesting base station that can help in deriving SSB assistance information in the core network (such as historical sensing results, UE positioning information known by the requesting base station in history, the information of initial access in history, and the like) ; the current energy consumption for transmitting SSB; the desired / requested energy consumption for transmitting SSB; and the capability parameters of current base station related to SSB.
[0052] In certain implementations, the sensing result (s) collected by the core network among the 6G system may include, but not limited to, any portion of the following information:
[0053] In certain implementations, after gathering / collecting the sensing results reflecting a situation of potential targets (such as UEs entering or moving into the serving cell) and the environment, the core network can directly provide SSB assistance information to the base station via the interface between the core network and the base station. In certain implementations, the SSB assistance information can include the configuration of SSB-related parameters, such as assistance information for the base station to derive the following SSB-related parameters, which may include, but not limited to, one or more of the following parameters: ssb-PositionsInBurst, ssb-periodicityServingCell, and ssb-SubcarrierSpacing, among others.
[0054] In certain implementations, at least part of the following information is included in the SSB assistance information and can be provided by the core network:
[0055] With the above information (included in the SSB assistance information) provided by the core network, the base station can derive RRC / MAC / PHY layer parameters for SSB configuration of the base station.
[0056] In certain implementations, as shown in FIG. 4, the core network can obtain / receive / acquire the current SSB configuration maintained inside the 3GPP network or from the operator, such that the core network can optimize / improve / enhance the SSB configuration for some base stations and can provide the assistance information without the related base station actually requesting SSB assistance information. In certain implementations, the provided SSB assistance information may have the same structure and content as described above.
[0057] In certain implementations, upon being requested for SSB assistance information, the core network can provide SSB assistance information to the base station. However, since the sensing target (e.g., a potential UE) may continue to move, the SSB configuration is to be updated or provided at multiple times.
[0058] In certain implementations, the base station can request a series of SSB assistance information to optimize / enhance / improve the SSB transmitting procedure. The SSB assistance information can be requested by the base station over an extended period of time / duration / window. During such long / extended time / duration / window requests, the base station can give an indication that the core network could / should keep / continue providing SSB assistance information multiple times and / or at different times during the duration / window. The “indication” may include, in addition to the contents in the SSB assistance information described above, at least the following information: the time duration of a time window in which the core network can keep providing SSB assistance information based on sensing results; the maximum times for the core network to provide SSB assistance information based on sensing results automatically; the recommended time gap between two SSB assistance information in sequence; or the recommended metric about the change of sensing result that triggers a new SSB assistance information.
[0059] In certain implementations, as shown in FIG. 5, if the base station indicates / specifies the maximum number of times for the core network to automatically provide SSB assistance information based on sensing results, the core network can stop providing SSB assistance information after satisfying / reaching the specified threshold or the maximum number of times. In certain implementations, as shown in FIG. 6, the base station can indicate / specify a time duration of a time window during which the core network can keep / continue providing SSB assistance information based on sensing results. It is to be noted that the collecting sensing results procedure before each SSB assistance information update could be omitted, as the core network may predict the sensing results (description of a sensing target) based on the historical sensing data. In certain implementations, based on the predicted sensing result, the core network can update the SSB assistance information without collecting the measured sensing result.
[0060] In certain implementations, the SSB assistance information updating message can update / modify the previously provided (first) SSB assistance information, such that except for the contents included in the provided (first) SSB assistance information, the updating message may include some or all of the following information:
[0061] In certain implementations, as shown in FIG. 7, the base station can report information on the quality / accuracy / effectiveness of the provided or updated SSB assistance information to the core network. In the information report, the base station can include at least all or part of the following information:
[0062] With the SSB assistance information reporting message, the core network can update the provided SSB assistance information based on sensing results.
[0063] In certain implementations, as shown in FIG. 8, the base station can revert or fall back to its original working mode, which may not permit / allow the core network to provide SSB assistance information based on sensing results. The base station can send / transmit / provide a message to the core network to abort (e.g., terminate, halt, suspend) providing SSB assistance information. In certain implementations, after receiving a message from the base station aborting SSB assistance information, the core network stops providing SSB assistance information to the related base station. The abort information can include at least part or all of the following information: the identifier information of the base station aborting SSB assistance information based on sensing results; or a reason log message specifying the reason why the base station decided to abort SSB assistance information based on sensing results.
[0064] In certain embodiments / implementations, once the 6G network configures the SSB-related parameters, the serving base station transmits the SSB as the 6G network configures, such that the SSB configuration is no longer entirely / totally implemented by the serving base station. In certain implementations, the 6G network only recommends the potential SSB-related parameters, leaving the implementation / configuration of the detailed SSB-related parameters entirely to the serving base station. It is to be noted that, regardless of the situation, the SSB interaction structure (e.g., between UE and base station) can remain unchanged, as the 6G network assists in selecting / indicating a better / optimized SSB combination of parameters without causing any changes / modifications to the existing SSB structure. In certain implementations, the sensing systems can provide extra / additional spatial information for the initial access processing. For example, the spatial information between the serving base station and the UE can be given / included in the SSB or related initial access processing, such that the SSB can be configured with specified / detailed spatial information, including the positioning of the serving base station and the UE, can be provided / incorporated in the SSB and other messages related to the initial access processing.
[0065] In certain implementations, the spatial information derived from sensing results can be directly included in the SSB or other information elements during initial accessing. For example, the spatial information can be transferred from the serving base station to the UE at any step during SSB transmission and initial access processing. Such configurations indicate that some or all of the following spatial information may be given / included in SSB, as well as related MIB and SIB, Msg2, Msg4, and other information / messages from the serving base station:
[0066] It is to be noted that the angular orientation of SSB can be given / provided to the UE based on sensing results. Such configurations indicate that the spatial direction of SSB is not only decided / determined by the serving base station but can also be derived by the serving base station and the core network based on sensing results. In certain implementations, the above-mentioned information can be provided by the serving base station to the UE via any RRC message / MAC CE / DCI related to SSB to assist the UE with spatial information during the initial accessing. With the spatial information provided by the serving base station, the UE can select more accurate receiving and transmitting configurations, such as beam direction, to receive the SSB or other downlink resource / information and can transmit an uplink message (using the same beam direction) . The detailed direction or other spatial configuration of the SSB can be implemented by the base station. In some implementations, the UE can use the spatial information in the SSB to decide / determine how to effectively receive SSB.
[0067] In certain embodiments, the SSB can be configured with an accurate transmission direction by the serving base station itself and the 6G network based on sensing results. For example, in some implementations, where the SSB is used to indicate QCL relationships, the sensing results can be directly used for configuring the QCL information. Such configurations indicate that the QCL information can be directly configured (from / by the base station) using spatial information derived from sensing results, and the message used to transfer the QCL information may include at least the following information: the TCI state or other information elements / messages, included in RRC messages, MAC CE, or DCI, used to indicate the QCL information may include at least the following additional details:
[0068] The above-mentioned information can be provided by the serving base station to the UE. With the accurate sensing result, the UE can be configured to automatically decide / determine accurate receive parameters, thereby reducing reliance on measurements from the UE side.
[0069] In certain embodiments, as shown in FIG. 9, the serving base station can configure and / or notify / inform the UE of a virtual reference signal (e.g., a virtual reference signal A) (which can be similar to SSB in earlier embodiments) in advance. Since the virtual reference signal A is “virtual” and not actually transmitted, the UE may not need to measure the virtual reference signal A. In this regard, all received parameters related to the virtual reference signal A can be provided by the 6G network or derived from assistance information provided by the 6G network. With the virtual reference signal A, the serving base station (e.g., a wireless communication node) can directly indicate the virtual signal’s QCL relationships with an actual / received wireless signal, thereby allowing the UE to receive the actual wireless signal as the virtual reference signal A.
[0070] As illustrated in FIG. 9, the virtual reference signal A information can be configured by the serving base station or the core network based on sensing results. In certain implementations, the virtual reference signal A information can be included in RRC messages, MAC CE, DCI, or NAS messages. The virtual reference signal A information may include at least part or all of the following information:
[0071] Based on the above-mentioned information, the UE can obtain / receive / acquire the receiving parameters for the virtual reference signal A. The virtual reference signal A may not actually occupy the true frequency and time resources and may not be transmitted by the serving base station. In such configurations, the UE may not need to measure the virtual reference signal A. Instead, all receiving parameters can be provided and derived from virtual reference signal A by the serving base station and the core network.
[0072] In certain implementations, with the virtual reference signal A, the serving base station can indicate the virtual reference signal A as the QCL source (QCL reference signal) in the QCL information provided by the serving base station. Such configurations indicate that the QCL information can be given / specified as follows:
[0073] The above is just an example of using the virtual reference signal A as a reference source for QCL. Based on the QCL information provided by the serving base station using the virtual reference signal A, the UE can directly receive the downlink (DL) signal according to the virtual reference signal A.
[0074] In certain embodiments, the QCL information can be directly configured using channel information derived from sensing results. For uplink (UL) transmissions, the configured spatial relationship used to indicate the UL transmission parameters on the UE can also be configured by channel information derived from sensing results. In some implementations, for UL transmissions, the serving base station can directly configure the UE to transmit uplink signals in the contrast / opposite direction to the receiving virtual reference signal A. In certain implementations, these configurations indicate that the message, whether it is an RRC message, MAC CE, or DCI, can be used for transferring uplink spatial relationship information (similar to. QCL information for DL spatial information) and may include some or all of the following information.
[0075] The above spatial relationship information can be provided by the serving base station to the UE for transmitting uplink signals. With the accurate sensing results, the UE can be configured to automatically decide / determine the accurate transmission parameters.
[0076] As described herein, the serving base station can configure and inform the UE of a virtual reference signal A in advance to instruct / inform the UE to use the associated / related receiving parameters to receive a downlink signal. For uplink transmissions, the serving base station can directly configure the UE to transmit an uplink signal in contrast to the direction of receiving virtual reference signal A. In certain embodiments, as shown in FIG. 10, except for the virtual reference signal A, the serving base station can configure another virtual reference signal (e.g., virtual reference signal B) , which can be a virtual uplink reference signal. The virtual reference signal B can directly describe / specify the transmitting parameters, thereby avoiding using the contrast / opposite beam direction of virtual reference signal A. In certain implementations, where the UE is configured with the virtual reference signal B as the reference signal for the uplink spatial relationship, the UE can directly use the transmitting parameters provided or derived from the virtual reference signal B to transmit uplink signals.
[0077] In certain implementations, the virtual reference signal B can be “virtual” and may not be actually transmitted. All transmitting parameters of the UE related to the virtual reference signal B can be provided by the 6G network or derived from the virtual reference signal B information provided by the 6G network. As illustrated in FIG. 10, the virtual reference signal B information can be configured by the serving base station or the core network based on sensing results. The virtual reference signal B information can be included in RRC messages, MAC CE, DCI, or NAS messages. The virtual reference signal B information may include at least part or all of the following information:
[0078] Based on the above-mentioned information, the UE can obtain / receive / acquire the transmitting parameters for the virtual reference signal B. The virtual reference signal B may not actually occupy the true frequency and time resources and may not be transmitted by the UE.
[0079] In certain implementations, with virtual reference signals A and B, the serving base station can indicate the uplink transmitting parameters in the uplink spatial relationship information provided by the serving base station by selecting / choosing virtual reference signal A or virtual reference signal B as the reference signal. As shown below, in some implementations, where virtual reference signal A is used as the reference signal for the spatial relationship, the UE can derive the uplink transmitting parameters from the DL virtual reference signal A and then transmit the related / corresponding UL signal. In some implementations, where the virtual reference signal B is used as the reference signal for the spatial relationship, the UE can transmit the related / corresponding UL signal using the transmitting parameters derived from the UL virtual reference signal B.
[0080] The above is just an example of using virtual reference signal A or virtual reference signal B as the reference source for the uplink spatial relationship.
[0081] Referring now to FIG. 11, which illustrates a flow diagram of a method 1100 for sensing-assisted initial accessing and quasi co-located communication. The method 1100 may be implemented using any of the components and devices detailed herein in conjunction with FIGS. 1–10. In an overview, the method 1100 may include receiving, by a wireless communication node from a core network, synchronization signal block (SSB) assistance information (BLOCK 1102) . The method 1100 may include transmitting, by the wireless communication node to a wireless communication device, SSB related spatial information (BLOCK 1104) . The method 1100 may include transmitting, by the core network to the wireless communication node, SSB assistance information (BLOCK 1106) . The method 1100 may include receiving, by the wireless communication device from the wireless communication node, SSB related spatial information (BLOCK 1108) .
[0082] In certain configurations, the wireless communication node (e.g., BS, TRP, gNB) can receive synchronization signal block (SSB) assistance information from a core network (BLOCK 1102) . The wireless communication node can transmit SSB related spatial information to a wireless communication device (e.g., UE, terminal) (BLOCK 1104) . In certain configurations, the SSB assistance information can be based at least on sensing information obtained by an integrated sensing and communication (ISAC) system in an environment of the wireless communication node. The SSB assistance information can include, recommend, or specify at least one SSB related parameter. The core network can transmit the SSB assistance information via protocol signaling to the wireless communication node.
[0083] In certain configurations, the wireless communication node can determine, for the wireless communication device, at least one SSB of a plurality of SSBs, according to the SSB assistance information. The wireless communication node can transmit the at least one SSB (e.g., according / responsive to the determining) to the wireless communication device. In certain configurations, the wireless communication node can transmit a request for the SSB assistance information to the core network. The wireless communication node can receive, from the core network, the SSB assistance information responsive to the request. In certain configurations, the request may include at least one of the following: identification information of the wireless communication node, timing information of an SSB; spatial information of an SSB; an indication of a current SSB configuration of the wireless communication node; known or historical information to help determine the SSB assistance information; current energy consumption information for transmitting an SSB; desired energy consumption for transmitting an SSB; or an indication of capability of the wireless communication node related to providing an SSB.
[0084] In certain configurations, the SSB assistance information may include at least one of the following: identification (ID) information; information about SSB; or information about SSB set. In certain configurations, the ID information may include at least one of the following: ID information of the wireless communication node, ID information of functionality of the core network providing the SSB assistance information, or ID information of signaling that is providing the SSB assistance information. The information about SSB may include at least one of the following: information related to beam direction of an SSB, transmission power of an SSB, quasi colocation (QCL) relationship information of SSBs in an SSB set, frequency location of an SSB, subcarrier spacing of an SSB, time domain location of an SSB, maximum number of different SSBs, or periodicity of an SSB in a serving cell. The information about SSB set may include at least one of the following: periodicity of an SSB set in a serving cell, power allocation information of SSBs in an SSB set, time series relationship of SSBs in an SSB set, or QCL relationship information of SSBs in an SSB set. In certain configurations, the wireless communication node can receive, from the wireless communication device, the SSB assistance information without the wireless communication device requesting or triggering the SSB assistance information.
[0085] In certain configurations, the request can include an indication to provide one or more instances of SSB assistance information over a period of time. The indication may include a recommendation or specification of at least one of the following: the period of time; a maximum number of the instances (e.g., including initial instance and update (s) ) to be provided; a time gap between adjacent instances of SSB assistance information to be provided; or a criterion for triggering an instance of SSB assistance information to be provided. In certain configurations, a subsequent instance of SSB assistance information can be determined according to updated sensing information, including at least one of measured sensing information or predicted sensing information. In certain configurations, the subsequent instance of SSB assistance information can include (e.g., in the original / prior version of SSB assistance information) at least one updated version of the ID information, the information about SSB, or the information about SSB set.
[0086] In certain configurations, the wireless communication node can transmit, to the core network, a report indicating a quality, accuracy, or effectiveness associated with the SSB assistance information. In certain configurations, the wireless communication node can transmit a message to halt providing the SSB assistance information to the core network. The message may include at least one of the following: an identification (ID) of the wireless communication node indicating to halt providing the SSB assistance information, or a reason for indicating to halt providing the SSB assistance information. In certain configurations, the wireless communication node can transmit the SSB related spatial information via at least one of the following: an SSB, a master information block (MIB) , a system information block (SIB) , a defined signal or information, a Msg2 or a Msg4. The wireless communication device can use the SSB related spatial information to determine receiving configuration or parameters (e.g., beam direction) for receiving one or more downlink transmissions. The wireless communication device can use the SSB related spatial information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions. In certain configurations, the SSB related spatial information may include at least one of the following: identification (ID) information related to an SSB, including an identifier of the SSB and / or an SSB burst set; first spatial information related to an SSB; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access.
[0087] In certain configurations, the wireless communication node can transmit the spatial information via a transmitted signal, including at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling. The spatial information can include quasi colocation (QCL) information and other information (e.g., structure of QCL information extended into spatial information) . The wireless communication device can use the spatial information to determine receiving configuration or parameters (e.g., beam direction) for receiving one or more downlink transmissions. The wireless communication device can use the spatial information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions.
[0088] In certain configurations, at least one SSB (e.g., optimized SSB (s) ) of a plurality of SSBs can be determined according to sensing information. The quasi colocation (QCL) information based on the at least one SSB can be transmitted by the wireless communication node via a transmitted signal, including at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling. The wireless communication device can use the QCL information to determine receiving configuration or parameters for receiving one or more downlink transmissions. The wireless communication device can use the QCL information to determine transmitting configuration or parameters for transmitting one or more uplink transmissions. In certain configurations, the spatial information or the QCL information may include at least one of the following: identification (ID) information related to QCL relationship, including an identifier of the QCL relationship; first spatial information related to the transmitted signal; delay and Doppler information related to the transmitted signal; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access.
[0089] In certain configurations, the wireless communication node or the core network can determine information about a virtual signal (e.g., SSB related spatial information) using sensing information. The wireless communication node, or the core network, can transmit the information about the virtual signal via at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling. The wireless communication device can use the information about the virtual signal to determine a receiving configuration or parameters for receiving one or more downlink transmissions. The wireless communication node can indicate the virtual signal as a quasi-colocation (QCL) source or QCL references signal. In certain configurations, the wireless communication node or the core network can determine information about a virtual signal (e.g., SSB related spatial information) using sensing information. The wireless communication node, or the core network, can transmit the information about the virtual signal via at least one of the following: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling. The wireless communication device can use the information about the virtual signal to determine a transmitting configuration or parameters for transmitting one or more downlink transmissions.
[0090] In certain configurations, the information about the virtual signal may include at least one of the following: identification (ID) information, including at least one of the following: an identifier of the virtual signal, an identifier of a serving base station, or an identifier of a UE; first information of the virtual signal; delay and Doppler information of a transmitted signal; first spatial information related to the virtual signal; second spatial information related to the wireless communication node as a serving base station; or third spatial information related to the wireless communication device, that is to perform initial access. In certain configurations, the first information may include at least one of the following: time domain location information of the virtual signal; suitable time domain location information of the virtual signal; frequency domain location information of the virtual signal; suitable frequency domain location information of the virtual signal; or power information of the virtual signal. The first spatial information related to the virtual signal may include at least one of the following: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates for the virtual signal on serving base station (e.g., the wireless communication node) side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information for the virtual signal in global coordinates from user equipment (UE) (e.g., the wireless communication device) side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from UE side; antenna weight information for the virtual signal on the serving base station side; codebook information for the virtual signal on the serving base station side; antenna weight information for the virtual signal on the UE side; or codebook information for the virtual signal on the UE side. The delay and Doppler information may include at least one of the following: distance information between the serving base station and the UE related to the virtual signal; delay information between the serving base station and the UE related to the virtual signal; delay spread information between the serving base station and the UE related to the virtual signal; absolute velocity information of the UE related to the virtual signal; relative velocity information of the UE related to the virtual signal; Doppler frequency information of the UE related to the virtual signal; Doppler frequency spread information of the UE related to the virtual signal; or information of environment around the UE and the serving base station related to the virtual signal.
[0091] In certain configurations, the first spatial information may include at least one of the following: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates from serving base station side; relative AoD or ZoD information compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information in global coordinates from user equipment (UE) side; relative AoD or ZoD information compared to a reference angle in global coordinates from UE side; antenna weight information on the serving base station side; codebook information on the serving base station side; recommended antenna weight information on the UE side; or recommended codebook information on the UE side. The delay and Doppler information may include at least one of the following: distance information between the serving base station and the UE; delay information between the serving base station and the UE; delay spread information between the serving base station and the UE; absolute velocity information of the UE; relative velocity information of the UE; Doppler frequency information of the UE; Doppler frequency spread information of the UE; or information of environment around the UE and the serving base station. The second spatial information may include at least one of the following: absolute position of the serving base station in global coordinates; relative position of the serving base station relative to a reference point in local coordinates; relative position of the serving base station relative to a UE in local coordinates; relative azimuth angular information of the serving base station relative to the UE in local coordinates; or relative elevation angular information of the serving base station relative to the UE in local coordinates. The third spatial information may include at least one of the following: absolute position of the UE in global coordinates; relative position of the UE relative to a reference point in local coordinates; relative position of the UE relative to the serving base station in local coordinates; relative azimuth angular information of the UE relative to the serving base station in local coordinates; or relative elevation angular information of the UE relative to the serving base station in local coordinates.
[0092] In certain configurations, the core network can transmit synchronization signal block (SSB) assistance information to the wireless communication node (e.g., BS, TRP, gNB) (BLOCK 1106) . The wireless communication node can transmit SSB related spatial information to the wireless communication device (e.g., UE, terminal) . In certain configurations, the wireless communication device can receive synchronization signal block (SSB) related spatial information from the wireless communication node (BLOCK 1108) . The wireless communication node (e.g., BS, TRP, gNB) can receive SSB assistance information from the core network.
[0093] While various embodiments / implementations 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 architecture 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 multiple features of one embodiment / implementation can be combined with one or multiple features of another embodiment / implementation described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described illustrative embodiments.
[0094] 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.
[0095] 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, 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.
[0096] 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.
[0097] 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 multiple microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
[0098] If implemented in software, the functions can be stored as one or multiple 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.
[0099] 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 to embodiments of the present solution.
[0100] 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.
[0101] 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 method comprising:receiving, by a wireless communication node from a core network, synchronization signal block (SSB) assistance information; andtransmitting, by the wireless communication node to a wireless communication device, SSB related spatial information.2.The method of claim 1, wherein at least one of:the SSB assistance information is based at least on sensing information obtained by an integrated sensing and communication (ISAC) system in an environment of the wireless communication node;the SSB assistance information includes, recommends or specifies at least one SSB related parameter; andthe core network transmits the SSB assistance information via protocol signaling to the wireless communication node.3.The method of claim 1, comprising at least one of:determining, by the wireless communication node for the wireless communication device, at least one SSB of a plurality of SSBs, according to the SSB assistance information; ortransmitting, by the wireless communication node to the wireless communication device, the at least one SSB.4.The method of claim 1, comprising at least one of:transmitting, by the wireless communication node to the core network, a request for the SSB assistance information; orreceiving, by the wireless communication node from the core network, the SSB assistance information responsive to the request.5.The method of claim 4, wherein the request comprises at least one ofidentification information of the wireless communication node;timing information of an SSB;spatial information of an SSB;an indication of a current SSB configuration of the wireless communication node;known or historical information to help determine the SSB assistance information;current energy consumption information for transmitting an SSB;desired energy consumption for transmitting an SSB; oran indication of capability of the wireless communication node related to providing an SSB.6.The method of claim 1, wherein the SSB assistance information comprises at least one of:identification (ID) information;information about SSB; orinformation about SSB set.7.The method of claim 6, wherein at least one of:the ID information comprises at least one of: ID information of the wireless communication node, ID information of functionality of the core network providing the SSB assistance information, or ID information of signaling that is providing the SSB assistance information;the information about SSB comprises at least one of: information related to beam direction of an SSB, transmission power of an SSB, quasi colocation (QCL) relationship information of SSBs in an SSB set, frequency location of an SSB, subcarrier spacing of an SSB, time domain location of an SSB, maximum number of different SSBs, or periodicity of an SSB in a serving cell; orthe information about SSB set comprises at least one of: periodicity of an SSB set in a serving cell, power allocation information of SSBs in an SSB set, time series relationship of SSBs in an SSB set, or QCL relationship information of SSBs in an SSB set.8.The method of claim 1, comprising at least one of:receiving, by the wireless communication node from the wireless communication device, the SSB assistance information without the wireless communication device requesting or triggering the SSB assistance information.9.The method of claim 5, 6 or 7, wherein the request comprises an indication to provide one or more instances of SSB assistance information over a period of time, the indication comprising a recommendation or specification of at least one of:the period of time;a maximum number of the instances to be provided;a time gap between adjacent instances of SSB assistance information to be provided; ora criterion for triggering an instance of SSB assistance information to be provided.10.The method of claim 9, wherein a subsequent instance of SSB assistance information is determined according to updated sensing information comprising at least one of: measured sensing information, or predicted sensing information.11.The method of claim 10, wherein the subsequent instance of SSB assistance information includes at least one updated version of the ID information, the information about SSB, or the information about SSB set.12.The method of claim 1, comprising:transmitting, by the wireless communication node to the core network, a report indicating a quality, accuracy, or effectiveness associated with the SSB assistance information.13.The method of claim 1, wherein at least one of:the method comprises transmitting, by the wireless communication node to the core network, a message to halt providing the SSB assistance information; orthe message comprising at least one of: an identification (ID) of the wireless communication node indicating to halt providing the SSB assistance information, or a reason for indicating to halt providing the SSB assistance information.14.The method of claim 1, wherein at least one of:the SSB related spatial information is transmitted by the wireless communication node via at least one of: an SSB, a master information block (MIB) , a system information block (SIB) , a defined signal or information, a Msg2 or a Msg4;the wireless communication device uses the SSB related spatial information to determine receiving configuration or parameters, to receive one or more downlink transmissions; orthe wireless communication device uses the SSB related spatial information to determine transmitting configuration or parameters, to transmit one or more uplink transmissions.15.The method of claim 1, wherein the SSB related spatial information comprises at least one of:identification (ID) information related to an SSB, comprising an identifier of the SSB and / or an SSB burst set;first spatial information related to an SSB;second spatial information related to the wireless communication node as a serving base station; orthird spatial information related to the wireless communication device, that is to perform initial access.16.The method of claim 1, wherein at least one of:spatial information is transmitted by the wireless communication node via a transmitted signal comprising at least one of: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling;the spatial information includes quasi colocation (QCL) information and other information;the wireless communication device uses the spatial information to determine receiving configuration or parameters, to receive one or more downlink transmissions; orthe wireless communication device uses the spatial information to determine transmitting configuration or parameters, to transmit one or more uplink transmissions.17.The method of claim 1, wherein at least one of:at least one SSB of a plurality of SSBs is determined according to sensing information;quasi colocation (QCL) information based on the at least one SSB is transmitted by the wireless communication node via a transmitted signal comprising at least one of: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, or downlink control information (DCI) signaling;the wireless communication device uses the QCL information to determine receiving configuration or parameters, to receive one or more downlink transmissions; orthe wireless communication device uses the QCL information to determine transmitting configuration or parameters, to transmit one or more uplink transmissions.18.The method of claim 16 or 17, wherein the spatial information or the QCL information comprises at least one of:identification (ID) information related to QCL relationship, comprising an identifier of the QCL relationship;first spatial information related to the transmitted signal;delay and Doppler information related to the transmitted signal;second spatial information related to the wireless communication node as a serving base station; orthird spatial information related to the wireless communication device, that is to perform initial access.19.The method of claim 1, wherein at least one of:information about a virtual signal is determined by the wireless communication node or the core network, using sensing information;the information about the virtual signal is transmitted by the wireless communication node or the core network via at least one of: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling;the wireless communication device uses the information about the virtual signal to determine a receiving configuration or parameters, to receive one or more downlink transmissions; orthe wireless communication node indicates the virtual signal as a quasi colocation (QCL) source or QCL references signal.20.The method of claim 1, wherein at least one of:information about a virtual signal is determined by the wireless communication node or the core network, using sensing information;the information about the virtual signal is transmitted by the wireless communication node or the core network via at least one of: radio resource control (RRC) signaling, medium access control control element (MAC CE) signaling, downlink control information (DCI) signaling, or non-access stratum (NAS) signaling; orthe wireless communication device uses the information about the virtual signal to determine a transmitting configuration or parameters, to transmit one or more downlink transmissions.21.The method of claim 19 or 20, wherein the information about the virtual signal comprises at least one of:identification (ID) information comprising at least one of: an identifier of the virtual signal, an identifier of a serving base station, or an identifier of a UE;first information of the virtual signal;delay and Doppler information of a transmitted signal;first spatial information related to the virtual signal;second spatial information related to the wireless communication node as a serving base station; orthird spatial information related to the wireless communication device, that is to perform initial access.22.The method of claim 21, wherein at least one of:the first information comprises at least one of: time domain location information of the virtual signal; suitable time domain location information of the virtual signal; frequency domain location information of the virtual signal; suitable frequency domain location information of the virtual signal; or power information of the virtual signal;the first spatial information related to the virtual signal comprises at least one of: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates for the virtual signal on serving base station side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information for the virtual signal in global coordinates from user equipment (UE) side; relative AoD or ZoD information for the virtual signal compared to a reference angle in global coordinates from UE side; antenna weight information for the virtual signal on the serving base station side; codebook information for the virtual signal on the serving base station side; antenna weight information for the virtual signal on the UE side; or codebook information for the virtual signal on the UE side; orthe delay and Doppler information comprises at least one of: distance information between the serving base station and the UE related to the virtual signal; delay information between the serving base station and the UE related to the virtual signal; delay spread information between the serving base station and the UE related to the virtual signal; absolute velocity information of the UE related to the virtual signal; relative velocity information of the UE related to the virtual signal; Doppler frequency information of the UE related to the virtual signal; Doppler frequency spread information of the UE related to the virtual signal; or information of environment around the UE and the serving base station related to the virtual signal.23.The method of claim 15, 18 or 21, wherein at least one of:the first spatial information comprises at least one of: absolute angle-of departure (AoD) or zenith-of-departure (ZoD) information in global coordinates from serving base station side; relative AoD or ZoD information compared to a reference angle in global coordinates from serving base station side; absolute AoD or ZoD information in global coordinates from user equipment (UE) side; relative AoD or ZoD information compared to a reference angle in global coordinates from UE side; antenna weight information on the serving base station side; codebook information on the serving base station side; recommended antenna weight information on the UE side; or recommended codebook information on the UE side;the delay and Doppler information comprises at least one of: distance information between the serving base station and the UE; delay information between the serving base station and the UE; delay spread information between the serving base station and the UE; absolute velocity information of the UE; relative velocity information of the UE; Doppler frequency information of the UE; Doppler frequency spread information of the UE; or information of environment around the UE and the serving base station;the second spatial information comprises at least one of: absolute position of the serving base station in global coordinates; relative position of the serving base station relative to a reference point in local coordinates; relative position of the serving base station relative to a UE in local coordinates; relative azimuth angular information of the serving base station relative to the UE in local coordinates; or relative elevation angular information of the serving base station relative to the UE in local coordinates; orthe third spatial information comprises at least one of: absolute position of the UE in global coordinates; relative position of the UE relative to a reference point in local coordinates; relative position of the UE relative to the serving base station in local coordinates; relative azimuth angular information of the UE relative to the serving base station in local coordinates; or relative elevation angular information of the UE relative to the serving base station in local coordinates.24.A method comprising:transmitting, by a core network to a wireless communication node, synchronization signal block (SSB) assistance information,wherein the wireless communication node transmits SSB related spatial information to a wireless communication device.25.A method comprising:receiving, by a wireless communication device from a wireless communication node, synchronization signal block (SSB) related spatial information,wherein the wireless communication node receives SSB assistance information from a core network.26.A non-transitory computer readable medium storing instructions, which when executed by at least one processor, cause the at least one processor to perform the method of any one of claims 1-25.27.An apparatus comprising:at least one processor configured to perform the method of any one of claims 1-25.