Method and apparatus for reporting reference signal measurement information using quantization in wireless communication system

Abstract

The present disclosure relates to a 5G communication system or a 6G communication system for supporting higher data rates beyond a 4G communication system such as long term evolution (LTE). The present disclosure provides a method performed by a UE in a wireless communication system, the method comprising: receiving, from a base station, configuration information including information for a CSI resource configuration and information for a CSI report configuration; receiving, from the base station, a reference signal based on the configuration information; determining measurement information based on the reference signal; determining a CSI report including reporting information for a measurement quantity based on the measurement information and the configuration information, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes; and transmitting, to the base station, the CSI report.

Description

METHOD AND APPARATUS FOR REPORTING REFERENCE SIGNAL MEASUREMENT INFORMATION USING QUANTIZATION IN WIRELESS COMMUNICATION SYSTEM

[0001] The present application relates to a field of wireless communication technology, and more particularly, to a method and an apparatus for reporting reference signal measurement information using quantization in a wireless communication system.

[0002] Considering the development of wireless communication from generation to generation, the technologies have been developed mainly for services targeting humans, such as voice calls, multimedia services, and data services. Following the commercialization of 5G (5th-generation) communication systems, it is expected that the number of connected devices will exponentially grow. Increasingly, these will be connected to communication networks. Examples of connected things may include vehicles, robots, drones, home appliances, displays, smart sensors connected to various infrastructures, construction machines, and factory equipment. Mobile devices are expected to evolve in various form-factors, such as augmented reality glasses, virtual reality headsets, and hologram devices. In order to provide various services by connecting hundreds of billions of devices and things in the 6G (6th-generation) era, there have been ongoing efforts to develop improved 6G communication systems. For these reasons, 6G communication systems are referred to as beyond-5G systems.

[0003] 6G communication systems, which are expected to be commercialized around 2030, will have a peak data rate of tera (1,000 giga)-level bps and a radio latency less than 100μsec, and thus will be 50 times as fast as 5G communication systems and have the 1 / 10 radio latency thereof.

[0004] In order to accomplish such a high data rate and an ultra-low latency, it has been considered to implement 6G communication systems in a terahertz band (for example, 95GHz to 3THz bands). It is expected that, due to severer path loss and atmospheric absorption in the terahertz bands than those in mmWave bands introduced in 5G, technologies capable of securing the signal transmission distance (that is, coverage) will become more crucial. It is necessary to develop, as major technologies for securing the coverage, radio frequency (RF) elements, antennas, novel waveforms having a better coverage than orthogonal frequency division multiplexing (OFDM), beamforming and massive multiple input multiple output (MIMO), full dimensional MIMO (FD-MIMO), array antennas, and multiantenna transmission technologies such as large-scale antennas. In addition, there has been ongoing discussion on new technologies for improving the coverage of terahertz-band signals, such as metamaterial-based lenses and antennas, orbital angular momentum (OAM), and reconfigurable intelligent surface (RIS).

[0005] Moreover, in order to improve the spectral efficiency and the overall network performances, the following technologies have been developed for 6G communication systems: a full-duplex technology for enabling an uplink transmission and a downlink transmission to simultaneously use the same frequency resource at the same time; a network technology for utilizing satellites, high-altitude platform stations (HAPS), and the like in an integrated manner; an improved network structure for supporting mobile base stations and the like and enabling network operation optimization and automation and the like; a dynamic spectrum sharing technology via collison avoidance based on a prediction of spectrum usage; an use of artificial intelligence (AI) in wireless communication for improvement of overall network operation by utilizing AI from a designing phase for developing 6G and internalizing end-to-end AI support functions; and a next-generation distributed computing technology for overcoming the limit of UE computing ability through reachable super-high-performance communication and computing resources (such as mobile edge computing (MEC), clouds, and the like) over the network. In addition, through designing new protocols to be used in 6G communication systems, developing mecahnisms for implementing a hardware-based security environment and safe use of data, and developing technologies for maintaining privacy, attempts to strengthen the connectivity between devices, optimize the network, promote softwarization of network entities, and increase the openness of wireless communications are continuing.

[0006] It is expected that research and development of 6G communication systems in hyper-connectivity, including person to machine (P2M) as well as machine to machine (M2M), will allow the next hyper-connected experience. Particularly, it is expected that services such as truly immersive extended reality (XR), high-fidelity mobile hologram, and digital replica could be provided through 6G communication systems. In addition, services such as remote surgery for security and reliability enhancement, industrial automation, and emergency response will be provided through the 6G communication system such that the technologies could be applied in various fields such as industry, medical care, automobiles, and home appliances.

[0007] The present disclosure relates to addressing signaling overhead for reporting information including reported values of a measurement quantity related to a reference signal.

[0008] Embodiments of the present disclosure provide a method performed by a user equipment (UE) in a wireless communication system, the method comprising: receiving, from a base station, configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration; receiving, from the base station, a reference signal based on the configuration information; determining measurement information based on the reference signal; determining a CSI report including reporting information for a measurement quantity based on the measurement information and the configuration information, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes; and transmitting, to the base station, the CSI report.

[0009] Embodiments of the present disclosure provide a method performed by a base station in a wireless communication system, the method comprising: transmitting, to a user equipment (UE), configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration; transmitting, to the UE, a reference signal based on the configuration information; and receiving, from the UE, a CSI report including reporting information for a measurement quantity, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes.

[0010] Embodiments of the present disclosure provide a user equipment (UE) in a wireless communication system, the UE comprising: at least one transceiver; at least one processor communicatively coupled to the at least one transceiver; and memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the UE to: receive, from a base station, configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration, receive, from the base station, a reference signal based on the configuration information, determine measurement information based on the reference signal, determine a CSI report including reporting information for a measurement quantity based on the measurement information and the configuration information, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes, and transmit, to the base station, the CSI report.

[0011] Embodiments of the present disclosure provide a base station in a wireless communication system, the base station comprising: at least one transceiver; at least one processor communicatively coupled to the at least one transceiver; and memory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the base station to: transmit, to a user equipment (UE), configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration, transmit, to the UE, a reference signal based on the configuration information, and receive, from the UE, a CSI report including reporting information for a measurement quantity, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes.

[0012] The methods performed by a user equipment (UE) and / or a base station in a wireless communication system provided herein can effectively avoid measurement performance loss and resource waste by using dynamic quantization to report measurement results.

[0013] For a more complete understanding of the present disclosure and its advantages, reference is now made to the following description taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts:

[0014] FIG. 1 illustrates an example wireless network according to embodiments of the present disclosure;

[0015] FIG. 2 illustrates an example base station according to embodiments of the present disclosure;

[0016] FIG. 3 illustrates an example user equipment according to embodiments of the present disclosure;

[0017] FIG. 4 illustrates an example one-to-one mapping relationship of RSRP ratios and beam direction deviations according to embodiments of the present disclosure;

[0018] FIG. 5 illustrates an example one-to-one mapping relationship of equivalent channel estimation ratios to beam direction deviations according to embodiments of the present disclosure;

[0019] FIG. 6 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure;

[0020] FIG. 7 illustrates a flowchart of a method performed by a user equipment (UE) in a wireless communication system according to embodiments of the present disclosure;

[0021] FIG. 8 illustrates a flowchart of a method performed by a base station in a wireless communication system according to embodiments of the present disclosure;

[0022] FIG. 9 illustrates a schematic diagram of a base station according to embodiments of the present disclosure;

[0023] FIG. 10 illustrates a schematic diagram of a user equipment (UE) according to embodiments of the present disclosure;

[0024] FIG. 11 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure;

[0025] FIG. 12 illustrates an example of forming a two-to-one mapping relationship with two RSRP ratios and one piece of angular information according to embodiments of the present disclosure;

[0026] FIG. 13 illustrates an example implementation of beam management using an RSRP ratio as a measurement quantity according to embodiments of the present disclosure;

[0027] FIG. 14 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure;

[0028] FIG. 15 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure;

[0029] FIG. 16 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure; and

[0030] FIG. 17 illustrates an example implementation in which the UE performs reporting according to different quantization requirements for different areas according to embodiments of the present disclosure;

[0031] The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the present disclosure as defined by the claims and their equivalents. It includes various specific details to assist in that understanding but these are to be regarded as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. In addition, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

[0032] The terms and words used in the following description and claims are not limited to the bibliographical meanings, but, are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Accordingly, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purpose only and not for the purpose of limiting the present disclosure as defined by the appended claims and their equivalents.

[0033] It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.

[0034] The term "include" or "may include" refers to the existence of a corresponding disclosed function, operation or component which can be used in various embodiments of the present disclosure and does not limit one or more additional functions, operations, or components. The terms such as "include" and / or "have" may be construed to denote a certain characteristic, number, step size, operation, constituent element, component or a combination thereof, but may not be construed to exclude the existence of or a possibility of addition of one or more other characteristics, numbers, steps, operations, constituent elements, components or combinations thereof.

[0035] The term "or" used in various embodiments of the present disclosure includes any or all of combinations of listed words. For example, the expression "A or B" may include A, may include B, or may include both A and B.

[0036] Unless defined differently, all terms used herein, which include technical terminologies or scientific terminologies, have the same meaning as that understood by a person skilled in the art to which the present disclosure belongs. Such terms as those defined in a generally used dictionary are to be interpreted to have the meanings equal to the contextual meanings in the relevant field of art, and are not to be interpreted to have ideal or excessively formal meanings unless clearly defined in the present disclosure.

[0037] Figures discussed below and various embodiments for describing the principles of the present disclosure in this patent document are only for illustration and should not be interpreted as limiting the scope of the present disclosure in any way. Those skilled in the art will understand that the principles of the present disclosure can be implemented in any suitably arranged system or device.

[0038] Before undertaking the DETAILED DESCRIPTION below, it may be advantageous to set forth definitions of certain words and phrases used throughout this patent document. The term "couple" and its derivatives refer to any direct or indirect communication between two or more elements, whether those elements are in physical contact with one another. The terms "transmit," "receive," and "communicate," as well as derivatives thereof, encompass both direct and indirect communication. The terms "include" and "comprise," as well as derivatives thereof, mean inclusion without limitation. The term "or" is inclusive, meaning and / or. The phrase "associated with," as well as derivatives thereof, means to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, have a relationship to or with, or the like. The term "controller" means any device, system or part thereof that controls at least one operation. Such a controller may be implemented in hardware or a combination of hardware and software and / or firmware. The functionality associated with any particular controller may be centralized or distributed, whether locally or remotely. The phrase "at least one of," when used with a list of items, means that different combinations of one or more of the listed items may be used, and only one item in the list may be needed. For example, "at least one of: A, B, and C" includes any of the following combinations: A, B, C, A and B, A and C, B and C, and A and B and C. Likewise, the term "set" means one or more. Accordingly, a set of items can be a single item or a collection of two or more items.

[0039] Moreover, various functions described below can be implemented or supported by one or more computer programs, each of which is formed from computer readable program code and embodied in a computer readable medium. The terms "application" and "program" refer to one or more computer programs, software components, sets of instructions, procedures, functions, objects, classes, instances, related data, or a portion thereof adapted for implementation in a suitable computer readable program code. The phrase "computer readable program code" includes any type of computer code, including source code, object code, and executable code. The phrase "computer readable medium" includes any type of medium capable of being accessed by a computer, such as read only memory (ROM), random access memory (RAM), a hard disk drive, a compact disc (CD), a digital video disc (DVD), or any other type of memory. A "non-transitory" computer readable medium excludes wired, wireless, optical, or other communication links that transport transitory electrical or other signals. A non-transitory computer readable medium includes media where data can be permanently stored and media where data can be stored and later overwritten, such as a rewritable optical disc or an erasable memory device.

[0040] Definitions for other certain words and phrases are provided throughout this patent document. Those of ordinary skill in the art should understand that in many if not most instances, such definitions apply to prior as well as future uses of such defined words and phrases.

[0041] The figures included herein, and the various embodiments used to describe the principles of the present disclosure are by way of illustration only and should not be construed in any way to limit the scope of the disclosure. Further, those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably arranged wireless communication system.

[0042] FIGS. 1-3 below describe various embodiments of the present disclosure implemented in wireless communications systems. The descriptions of FIGS. 1-3 are not meant to imply physical or architectural limitations to the manner in which different embodiments may be implemented. Different embodiments of the present disclosure may be implemented in any suitably-arranged communications system.

[0043] FIG. 1 illustrates an example wireless network according to embodiments of the present disclosure. The embodiment of the wireless network shown in FIG. 1 is for illustration only. Other embodiments of the wireless network 100 could be used without departing from the scope of the present disclosure.

[0044] As shown in FIG. 1, the wireless network includes a base station (next generation nodeB, gNB or gNodeB) 101, a gNB 102, and a gNB 103. The gNB 101 communicates with the gNB 102 and the gNB 103. The gNB 101 also communicates with at least one network 130, such as the Internet, a proprietary Internet Protocol (IP) network, or other data network.

[0045] The gNB 102 provides wireless broadband access to the network 130 for a first plurality of user equipments (UEs) within a coverage area 120 of the gNB 102. The first plurality of UEs includes a UE 111, which may be located in a small business; a UE 112, which may be located in an enterprise (E); a UE 113, which may be located in a WiFi hotspot (HS); a UE 114, which may be located in a first residence (R1); a UE 115, which may be located in a second residence (R2); and a UE 116, which may be a mobile device (M), such as a cell phone, a wireless laptop, a wireless personal digital assistant (PDA), or the like. The gNB 103 provides wireless broadband access to the network 130 for a second plurality of UEs within a coverage area 125 of the gNB 103. The second plurality of UEs includes the UE 115 and the UE 116, as well as subscriber stations (SS, for example, UEs) 117, 118 and 119. In some implementations, one or more of the gNBs 101-103 may communicate with each other and with the UEs 111-116 using existing wireless communication techniques, and one or more of the UE 111-119 may communicate directly with each other (e.g., UEs 117-119) using other existing or proposed wireless communication techniques.

[0046] Depending on the network type, the term "base station" or "BS" can refer to any component (or collection of components) configured to provide wireless access to a network, such as transmit point (TP), transmit-receive point (TRP), an enhanced (or "evolved") base station (eNodeB or eNB), a 5G base station (gNB), a macrocell, a femtocell, a wireless fidelity (WiFi) access point (AP), or other wirelessly enabled devices. Base stations may provide wireless access in accordance with one or more wireless communication protocols, e.g., 3GPP 5G New Radio (NR), Long Term Evolution (LTE), LTE Advanced (LTE-A), high speed packet access (HSPA), Wi-Fi 802.11a / b / g / n / ac, etc. For the sake of convenience, the various names for a base station-type apparatus and functionality are used interchangeably in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Also, depending on the network type, the term "user equipment" (UE) can refer to any component such as a mobile station (MS), subscriber station (SS), remote terminal, wireless terminal, receive point, or user device. For the sake of convenience, the various names for a user equipment-type device and functionality are used interchangeably in this patent document to refer to remote wireless equipment that wirelessly accesses a BS, whether the UE is a mobile device (such as a mobile telephone or smartphone) or is normally considered a stationary device (such as a desktop computer or vending machine).

[0047] Dotted lines show the approximate extents of the coverage areas 120 and 125, which are shown as approximately circular for the purposes of illustration and explanation only. It should be clearly understood that the coverage areas associated with gNBs, such as the coverage areas 120 and 125, may have other shapes, including irregular shapes, depending upon the configuration of the gNBs and variations in the radio environment associated with natural and man-made obstructions.

[0048] As described in more detail below, one or more of the UEs 111-119 include circuitry, programming, or a combination thereof. In certain embodiments, and one or more of the gNBs 101-103 include circuitry, programming, or a combination thereof.

[0049] Although FIG. 1 illustrates one example of a wireless network, various changes may be made to FIG. 1. For example, the wireless network could include any number of gNBs and any number of UEs in any suitable arrangement. Also, the gNB 101 could communicate directly with any number of UEs and provide those UEs with wireless broadband access to the network 130. Similarly, each gNB 102-103 could communicate directly with the network 130 and provide UEs with direct wireless broadband access to the network 130. Further, the gNBs 101, 102, and / or 103 could provide access to other or additional external networks, such as external telephone networks or other types of data networks.

[0050] FIG. 2 illustrates an example base station according to embodiments of the present disclosure. The embodiment of the gNB 102 illustrated in FIG. 2 is for illustration only, and the gNBs 101 and 103 of FIG. 1 could have the same or similar configuration. However, gNBs come in a wide variety of configurations, and FIG. 2 does not limit the scope of the present disclosure to any particular implementation of a gNB.

[0051] As shown in FIG 2, the gNB 102 includes multiple antennas 200a-200n, multiple radio frequency (RF) transceivers 201a-201n, transmit (TX) processing circuitry 203, and receive (RX) processing circuitry 204. The gNB 102 also includes a controller / processor 205, a memory 206, and a backhaul or network interface (IF) 207.

[0052] The RF transceivers 201a-201n receive, from the antennas 200a-200n, incoming RF signals, such as signals transmitted by UEs in the network 100. The RF transceivers 201a-201n down-convert the incoming RF signals to generate intermediate frequency (IF) or baseband signals. The IF or baseband signals are sent to the RX processing circuitry 204, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry 204 transmits the processed baseband signals to the controller / processor 205 for further processing.

[0053] The TX processing circuitry 203 receives analog or digital data (such as voice data, web data, electronic mail, or interactive video game data) from the controller / processor 205. The TX processing circuitry 203 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. The RF transceivers 201a-201n receive the outgoing processed baseband or IF signals from the TX processing circuitry 203 and up-convert the baseband or IF signals to RF signals that are transmitted via the antennas 200a-200n.

[0054] The controller / processor 205 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 205 could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceivers 201a-201n, the RX processing circuitry 204, and the TX processing circuitry 203 in accordance with well-known principles. The controller / processor 205 could support additional functions as well, such as more advanced wireless communication functions.

[0055] For instance, the controller / processor 205 could support beam forming or directional routing operations in which outgoing signals from multiple antennas 200a-200n are weighted differently to effectively steer the outgoing signals in a desired direction. Any of a wide variety of other functions could be supported in the gNB 102 by the controller / processor 205.

[0056] The controller / processor 205 is also capable of executing programs and other processes resident in the memory 206, such as an operating system (OS). The controller / processor 205 can move data into or out of the memory 206 as required by an executing process.

[0057] The controller / processor 205 is also coupled to the backhaul or network interface 207. The backhaul or network interface 207 allows the gNB 102 to communicate with other devices or systems over a backhaul connection or over a network. The interface 207 could support communications over any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as one supporting 5G, LTE, or LTE-A), the interface 207 could allow the gNB 102 to communicate with other gNBs over a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the interface 207 could allow the gNB 102 to communicate over a wired or wireless local area network or over a wired or wireless connection to a larger network (such as the Internet). The interface 207 includes any suitable structure supporting communications over a wired or wireless connection, such as an Ethernet or RF transceiver.

[0058] The memory 206 is coupled to the controller / processor 205. Part of the memory 206 could include a random access memory (RAM), and another part of the memory 206 could include a Flash memory or other read only memory (ROM).

[0059] Although FIG. 2 illustrates one example of gNB 102, various changes may be made to FIG. 2. For example, the gNB 102 could include any number of each component shown in FIG. 2. As a particular example, an access point could include a number of interfaces 207, and the controller / processor 205 could support routing functions to route data between different network addresses. As another particular example, while shown as including a single instance of TX processing circuitry 203 and a single instance of RX processing circuitry 204, the gNB 102 could include multiple instances of each (such as one per RF transceiver). Also, various components in FIG. 2 could be combined, further subdivided, or omitted and additional components could be added according to particular needs.

[0060] FIG. 3 illustrates an example user equipment according to embodiments of the present disclosure. The embodiment of the UE 116 illustrated in FIG. 3 is for illustration only, and the UEs 111-115 and 117-119 of FIG. 1 could have the same or similar configuration. However, UEs come in a wide variety of configurations, and FIG. 3 does not limit the scope of the present disclosure to any particular implementation of a UE.

[0061] As shown in FIG. 3, the UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, TX processing circuitry 303, a microphone 304, and receive (RX) processing circuitry 305. The UE 116 also includes a speaker 306, a controller or processor 307, an input / output (I / O) interface (IF) 308, an input device 309, a touchscreen display 310, and a memory 311. The memory 311 includes an OS 312 and one or more applications 313.

[0062] The RF transceiver 302 receives, from the antenna 301, an incoming RF signal transmitted by a gNB of the network 100. The RF transceiver 302 down-converts the incoming RF signal to generate an IF or baseband signal. The IF or baseband signal is sent to the RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. The RX processing circuitry 305 transmits the processed baseband signal to the speaker 306 (such as for voice data) or to the processor 307 for further processing (such as for web browsing data).

[0063] The TX processing circuitry 303 receives analog or digital voice data from the microphone 304 or other outgoing baseband data (such as web data, e-mail, or interactive video game data) from the processor 307. The TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 302 receives the outgoing processed baseband or IF signal from the TX processing circuitry 303 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 301.

[0064] The processor 307 can include one or more processors or other processing devices and execute the OS 312 stored in the memory 311 in order to control the overall operation of the UE 116. For example, the processor 307 could control the reception of forward channel signals and the transmission of reverse channel signals by the RF transceiver 302, the RX processing circuitry 305, and the TX processing circuitry 303 in accordance with well-known principles. In some implementations, the processor 307 includes at least one microprocessor or microcontroller.

[0065] The processor 307 is also capable of executing other processes and programs resident in the memory 311, such as processes for Channel State Information (CSI) reporting on uplink channel. The processor 307 can move data into or out of the memory 311 as required by an executing process. In some implementations, the processor 307 is configured to execute the applications 313 based on the OS 312 or in response to signals received from gNBs or an operator. The processor 307 is also coupled to the I / O interface 308, which provides the UE 116 with the ability to connect to other devices, such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the processor 307.

[0066] The processor 307 is also coupled to the touchscreen display 310. The user of the UE 116 can use the touchscreen display 310 to enter data into the UE 116. The touchscreen display 310 may be a liquid crystal display, light emitting diode display, or other display capable of rendering text and / or at least limited graphics, such as from web sites.

[0067] The memory 311 is coupled to the processor 307. Part of the memory 311 could include RAM, and another part of the memory 311 could include a Flash memory or other ROM.

[0068] Although FIG. 3 illustrates one example of UE 116, various changes may be made to FIG. 3. For example, various components in FIG. 3 could be combined, further subdivided, or omitted and additional components could be added according to particular needs. As a particular example, the processor 307 could be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Also, while FIG. 3 illustrates the UE 116 configured as a mobile telephone or smartphone, UEs could be configured to operate as other types of mobile or stationary devices.

[0069] Exemplary embodiments of the present disclosure are further described below with reference to the accompanying drawings.

[0070] The text and drawings are provided as examples only to help understand the present disclosure. They should not be construed as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, based on the disclosure herein, it is apparent to those skilled in the art that changes can be made to the illustrated embodiments and examples without departing from the scope of the present disclosure.

[0071] In the present disclosure, users can refer to user equipment (UE), terminals, user-side equipment, customer premise equipment (CPE) and so on.

[0072] In the present disclosure, "a group of" or "a set of" may be used interchangeably with "one or more of".

[0073] In an NR system, beam management is a method used to find the best transmission beam for improving the transmission quality of signals to further increase the transmission capacity of the system. Beam management may be implemented based on beam sweeping. Beam sweeping refers to that: a transmitter uses one or more beams to transmit one or more reference signals (RSs) which are respectively associated with the one or more beams; after receiving the one or more RSs, a receiver calculates the received energies (e.g., reference signal received power (RSRP)) on the one or more RSs respectively, and the beam corresponding to the RS with the strongest energy can be determined as the best transmission beam. In other words, when the transmitter uses the best transmission beam to transmit data, the receiver can obtain the strongest energy. Therefore, in order to find the best transmission beam, the transmitter needs to traverse all candidate beams.

[0074] However, in future 6G communication systems, there will be many issues following the current NR beam management method. For example, the first is that more RS resource overhead will be required in a 6G communication system. This is because using the current beam management method based on traversal beam sweeping, the overhead of RS resources is proportional to the number of supported beams. For example, a current millimeter wave product may support 16 wide beams, each wide beam further containing 10 narrow beams, which means that it will consume 176 RS resources (for example, corresponding to 16 wide beams + 160 narrow beams). However, in future 6G communication systems, in order to support larger coverage, the beams will be designed to be narrower to obtain higher beam gain. In this way, for the same angular coverage, the number of beams that need to be supported will be larger. For example, in a future FWA (fixed wireless access) product, a wide beam will contain 40 narrow beams. In this way, for 16 wide beams, the number of consumed RS resources will reach 656, and these RS resources will be consumed periodically (beam sweeping is performed periodically to update the best transmission beam).

[0075] Corresponding to such a huge RS transmission, the base station and UE will consume huge energy in both uplink and downlink. RSRP measurements corresponding to each RS resource made at the receiver will also consume huge power. For another example, since each candidate beam needs to be carried by at least one different Orthogonal Frequency Division Multiplexing (OFDM) symbol, using the traversal beam sweeping to find the best transmission beam will bring huge time latency.

[0076] In summary, the beam management method based on traversal beam sweeping is no longer suitable for future communication systems (for example, 6G communication systems). For example, it has problems such as huge RS resource overhead and huge latency, etc. Therefore, enhancements to beam management are needed.

[0077] Therefore, the present disclosure proposes a beam management method based on a RSRP ratio or based on an equivalent channel estimation ratio or a reference signal received path power (RSRPP) ratio, which can greatly reduce the overhead of RS resources.

[0078] In addition, regarding the reporting method for beam management, the present disclosure further proposes a dynamic quantization method to effectively enhance the reporting of measurement quantities in beam management. When using the beam management method based on RSRP ratio or equivalent channel estimation ratio, since the one-to-one mapping relationship between the RSRP ratio or the equivalent channel estimation ratio and the angular information is not linear (for example, the corresponding curve has sharp zones and flat zones as shown in FIG. 4), using the dynamic quantization reporting method can more effectively avoid the loss of measurement performance and waste of resources.

[0079] In the present disclosure, the measurement quantity to be reported (or reported measurement quantity) may be a measurement quantity related to beam management based on RSRP ratio, which may include at least one of the following: RSRP, RSRP ratio. In addition, the measurement quantity to be reported may also be a measurement quantity related to beam management based on equivalent channel estimation ratio or RSRPP ratio, which may include at least one of the following: equivalent channel estimation ratio, RSRPP ratio. In addition, the measurement quantity to be reported may also be a measurement quantity related to angular information. In addition, the measurement quantity to be reported may also be any other measurement quantity present or in the future. The present disclosure only describes an exemplary description of the dynamic quantization method of the measurement quantity, but does not limit the specific measurement quantity. Optionally, in some applications, the equivalent channel estimation ratio may be replaced by the RSRPP ratio.

[0080] In some implementations, a process of beam management based on dynamic quantization may include at least one of the following:

[0081] ●A UE receives a CSI resource configuration transmitted by a base station.

[0082] The CSI resource configuration may include at least one of the following: a set of reference signal resource configurations related to beam management based on RSRP ratio, and a set of reference signal resource configurations related to beam management based on equivalent channel estimation ratio.

[0083] ■The set of reference signal resource configurations related to beam management based on RSRP ratio may include configuration information related to existence of a fifth association relationship between a set of reference signal resources. The fifth association relationship may include that (partial) overlapping occurs between a set of beams corresponding to a set of reference signal resources. In addition, based on the reference signal resource configuration, the UE may implicitly know that beam management based on RSRP ratio is used now, and may further know that dynamic quantization needs to be used. Specifically, when the UE receives the reference signal resource configuration related to beam management based on RSRP ratio, it may implicitly know a configuration of a measurement quantity related to RSRP ratio (e.g., a RSRP, a RSRP ratio, etc.), thereby calculating the measurement quantity related to RSRP ratio, and the UE may further know that dynamic quantization needs to be used, so as to report the measurement quantity based on dynamic quantization.

[0084] ■The set of reference signal resource configurations related to beam management based on equivalent channel estimation ratio may include configuration information related to existence of a sixth association relationship between a set of reference signal resources. The sixth association relationship may include that beam gains of beams corresponding to two reference signal resources in the set of reference signal resources have complementary peaks. That is, when the beam gain corresponding to a certain reference signal of the two reference signal resources is of a peak value, the beam gain of another reference signal is of a valley value. Here, in the case where the set of reference signal resources includes two reference signal resources, it may be that the beam gains of the beams corresponding to the two reference signal resources have complementary peaks. In a case where the set of reference signal resources includes more than two reference signal resources (for example, three reference signal resources including a first reference signal resource, a second reference signal resource and a third reference signal resource), the beam corresponding to the second reference signal resource may have a complementary peak with the beam corresponding to the first reference signal resource in a horizontal direction, and the beam corresponding to the third reference signal resource may have a complementary peak with the beam corresponding to the first reference signal resource in a vertical direction. In addition, based on the reference signal resource configurations, the UE may implicitly know that beam management based on equivalent channel estimation ratio is used now, thereby calculating the measurement quantity related to equivalent channel estimation ratio (e.g., an equivalent channel estimation ratio, a RSRPP ratio, etc.), and the UE may further know that dynamic quantization needs to be used, so as to report the measurement quantity based on dynamic quantization.

[0085] ●The UE receives a CSI report configuration transmitted by the base station.

[0086] The CSI report configuration may include at least one of the following: a configuration related to dynamic quantization (which may be referred to herein as first configuration information).

[0087] The configuration related to dynamic quantization may include at least one of the following: a dynamic quantization indication (e.g., identification information related to dynamic quantization), a configuration of a mapping relationship for a measurement report (herein, a measurement report may also be referred to as reporting information), a configuration of a quantization mode for dynamic quantization, and content of the measurement quantity to be reported (e.g., configuration information related to a measurement quantity to be reported).

[0088] ■The dynamic quantization indication may be used to explicitly indicate the UE to use a dynamic quantization reporting method, which may also be called identification information (or field) about whether to use dynamic quantization. For example, in some implementations, whether dynamic quantization is used may be indicated by the value of the identification information (or field). In some other implementations, when the identification information (or field) is present, it may indicate that dynamic quantization is used; and when the identification information (or field) is not present, it may indicate that dynamic quantization is not used.

[0089] ■The configuration of a mapping relationship for a measurement report may include a mapping relationship between a measurement quantity (e.g., RSRP, RSRP ratio, equivalent channel estimation ratio, RSRPP ratio, etc.) and angular information, or it may include a mapping relationship between actual measurement values and quantization values and reported values of a measurement quantity, etc., or it may include an association relationship between multiple measurement value ranges of a measurement quantity and at least two quantization step sizes. Specifically, the association relationship may include one or more of the following:

[0090] a first association relationship, which may include at least one of the following:

[0091] an association relationship between reported values of a measurement quantity and a plurality of measurement value ranges. The plurality of measurement value ranges may be determined based on a plurality of measurement intervals and a plurality of quantization step sizes respectively corresponding to each of the plurality of measurement intervals, and the plurality of quantization step sizes may include at least two different quantization step sizes; and

[0092] an association relationship between reported values of a measurement quantity, a plurality of measurement value ranges, and a plurality of quantization step sizes. Herein, each of the plurality of measurement value ranges respectively corresponds to each of the plurality of quantization step sizes, and the plurality of quantization step sizes may include at least two different quantization step sizes.

[0093] a second association relationship, which may include an association relationship between measurement intervals and scaling factors, and association relationships between quantization values of the measurement quantity and a plurality of measurement value ranges respectively corresponding to each scaling factor. Herein, the scaling factors may be associated with at least two quantization step sizes.

[0094] a third association relationship, which may include an association relationship between a plurality of measurement intervals of the measurement quantity and integer (fractional) bit indicators representing an integer (fractional) bit number of an integer (fractional) portion of a quantization value, and association relationships between reported values of the measurement quantity and measurement value ranges respectively corresponding to each integer (fractional) bit indicator. Herein, the integer (fractional) bit indicators may be associated with at least two quantization step sizes.

[0095] a fourth association relationship, which may include an association relationship between reported values of the measurement quantity and a plurality of measurement value ranges, and an association relationship between the plurality of measurement value ranges and dynamic quantization bit numbers.

[0096] The configuration of a mapping relationship for the measurement report may directly include a mapping relationship for the measurement report, or may include parameters related to a mapping relationship for the measurement report that can be used to obtain (or determine) a mapping relationship for the measurement report. The configuration of a mapping relationship for the measurement report may be used for the UE to obtain a mapping relationship for the measurement report directly or indirectly (for example, by calculating the related parameters), thereby reporting the measurement quantity according to the mapping relationship.

[0097] ■The configuration of a quantization mode for dynamic quantization may be used to inform the UE of a specific quantization mode or quantization parameters that should be used when using dynamic quantization, for example, selection of parameters for quantization such as total quantization bit number, integer bit number, fraction bit number, scaling factor, step size, etc., so that the UE can use a suitable quantization mode (or quantization parameters) to report the measurement quantity. Optionally, when there is more than one quantization mode for dynamic quantization, the UE may select a corresponding quantization mode for reporting according to the configuration. In some implementations, the quantization mode or quantization parameters for dynamic quantization may also be carried in the configuration of the above-mentioned mapping relationship or correspondence relationship or each association relationship, without being transmitted individually.

[0098] ■The content of the measurement quantity to be reported may include at least one of the following: RSRP, RSRP ratio; equivalent channel estimate ratio, RSRPP ratio; a measurement quantity related to angular information (e.g., beam direction deviation or transmission angle or angle deviation or beam index or angle index, etc.). The measurement quantity to be reported being a parameter related to angular information is suitable for application scenarios where the UE needs to obtain angular information. After receiving an actual signal, angular information is obtained based on a calculated quantity of the actual received signal and the mapping relationship, and the angular information is reported. This method is suitable for application scenarios where the base station configures the UE to report angular information.

[0099] Optionally, the CSI report configuration may be implicitly configured by the CSI resource configuration. That is, when the UE receives a CSI resource configuration, it may implicitly know the relevant information of a CSI report configuration.

[0100] ●The UE receives a reference signal transmitted by the base station.

[0101] ●The UE measures the reference signal, calculates the measurement quantity, and reports it according to the configuration of the quantization mode for dynamic quantization in the CSI report configuration. For example, the UE transmits a measurement report related to reference signal and / or measurement quantity to the base station. In the present disclosure, the measurement report may include information related to the measurement quantity reported / to be reported. For example, the measurement report may include one or more of a measurement value of the measurement quantity, a quantization value of the measurement quantity, a reported value of the measurement quantity, etc. In the present disclosure, measurement report and measurement result may be used interchangeably.

[0102] ●The UE receives information transmitted by the base station after beam adjustment from the base station.

[0103] After the UE reports the measurement quantity, the base station may obtain angular information and / or beam information directly or indirectly according to the measurement quantity, use the angular information and / or beam information to adjust beam direction, and transmit information to the UE using the adjusted beam.

[0104] Through one or more steps in the above processes, beam management based on dynamic quantization can be achieved.

[0105] Optionally, in the beam management method in which the UE performs dynamic quantization, the configuration related to dynamic quantization may be preset, that is, there is a default configuration for the configuration related to dynamic quantization. This method does not require signaling overhead and is easy to be achieved.

[0106] Optionally, in the beam management method in which the UE performs dynamic quantization, the configuration related to dynamic quantization may be at least one of the following:

[0107] ■The UE receives the configuration of a mapping relationship for the measurement report and / or the configuration of a quantization mode for dynamic quantization and / or the configuration of the content of a reported measurement quantity. Optionally, the configurations may be transmitted through Radio Resource Control (RRC) signaling. Optionally, the configurations may be configurations in the initial communication establishment. Optionally, the configurations may be configured through a common channel.

[0108] ■The UE receives a dynamic quantization indication, which may be used to indicate to enable or disable dynamic quantization, and / or may be used to indicate which specific quantization mode for dynamic quantization is used. For example, the UE may receive multiple quantization modes for dynamic quantization, and then the UE is informed of which specific quantization mode for dynamic quantization is to be used through the dynamic quantization indication. For example, the UE may receive multiple mapping relationships for the measurement report, and then the UE is informed of which specific mapping relationship is to be used for dynamic quantization through first information. Optionally, the indication may be implemented through downlink control information (DCI) or MAC layer control element (MAC CE).

[0109] Optionally, in the beam management method in which the UE performs dynamic quantization, the configuration related to dynamic quantization may also be dynamically configured during the communication process.

[0110] It should be understood that the above description is only an example. Herein, each message, information, signaling, configuration, parameter, etc. can be transmitted individually or in any combination, which is not limited herein.

[0111] In some implementations, the way in which the UE obtains the mapping relationship for the measurement report may include at least one of the following:

[0112] ●The UE receives a mapping relationship for the measurement report transmitted by the base station through a certain channel. The certain channel may be a common channel, such as a broadcast channel, to save UE-specific signaling overhead. Herein, the certain channel may also be any other channel.

[0113] ●The UE receives parameters configured by the base station through a certain channel that can be used to obtain (or determine) a mapping relationship for the measurement report, that is, parameters related to the mapping relationship for the measurement report. The UE can obtain (for example, by calculating) the mapping relationship for the measurement report according to the parameters, so as to save the common signaling overhead that the base station needs to use when directly transmitting a mapping relationship for the measurement report. The certain channel may be a common channel, such as a broadcast channel, to save UE-specific signaling overhead. Herein, the certain channel may also be any other channel.

[0114] ■Parameters related to the mapping relationship for the measurement report may include parameters related to at least one of the following: measurement quantity, reported value, step size, measurement range, codebook, total quantization bit number, integer bit number, fraction bit number, scaling factor, index of a mapping relationship for the measurement report, and relevant parameters of angular information (or beam information).

[0115] - The UE may restore a complete mapping relationship for the measurement report according to the parameters related to the mapping relationship for the measurement report (for example, measurement quantity, reported value, measurement range, etc.). In this case, the mapping relationship for the measurement report can be obtained through simple calculation, thereby saving common signaling overhead. This method is suitable for situations where the measurement quantity to be reported is a calculated quantity based on the received signal (such as RSRP, RSRP ratio, RSRPP ratio, or equivalent channel estimation ratio, etc.).

[0116] - The UE may also determine parameters required to restore a complete mapping relationship for the measurement report based on the index of a mapping relationship for the measurement report. Specifically, corresponding to each index of a mapping relationship for the measurement report, there is a set of parameters related to the mapping relationship for the measurement report, such as at least one of: measurement quantity, reported value, step size, measurement range, codebook, and total quantization bit number, integer bit number, fraction bit number, and scaling factor. A complete mapping relationship for the measurement report can be restored according to the corresponding relevant parameters.

[0117] ◆Specifically, the index of a mapping relationship for the measurement report may be a parameter related to a codebook, such as a codebook index. In a specific implementation, the codebook used by the base station may be preset, and the base station may inform the UE of the codebook used by the base station by configuring parameters related to the codebook (for example, codebook index) to the UE. Based on the codebook, the UE can obtain a mapping relationship between the calculated quantity based on the received signal and the angular information under ideal conditions by calculation, and the mapping relationship may be based on different step sizes and / or different measurement ranges, etc. The calculated quantity based on the received signal may be RSRP, RSRP ratio, RSRPP ratio, or equivalent channel estimation ratio. The parameters related to the mapping relationship for the measurement report may also be preset. For example, for a certain index of a mapping relationship for the measurement report, parameters related to the mapping relationship for the measurement report are correspondingly determined, thereby a complete mapping relationship for the measurement report can be restored. Optionally, the codebook is related to beamforming coefficients. When different manufacturers use different beamforming coefficients, the corresponding measurement report mapping relationships are different, thus different quantization methods are needed. Different measurement report mapping relationship indexes may be configured for selection of different quantization methods.

[0118] ●One or more methods to obtain the mapping relationship for the measurement report are preset (for example, specified through a protocol) between the base station and the UE. For example, one method may be that the UE may store one or more mapping relationships for the measurement reports in advance and invoke one or more of them when needed. In this method, since the UE has preset mapping relationships for the measurement report, the base station does not need to give additional signaling to the UE to generate the mapping relationship for the measurement report. Optionally, when there is more than one pre-stored mapping relationship for the measurement report, the base station may transmit configuration information to the UE to select one or more of the mapping relationships of the measurement report.

[0119] ●Optionally, the index of the mapping relationship for the measurement report may be a table index. When a mapping relationship for a certain measurement report is realized by means of a table, the table index may be used to select different quantization parameters.

[0120] In some implementations, the quantization mode for dynamic quantization and / or the mapping relationship for the measurement report may include one or more of the following:

[0121] 1) A fixed total quantization bit number is used for the measurement quantity to be reported (e.g., a total reported value). In the case of using a fixed total quantization bit number, at least one of the following methods may be further included: using different step sizes, using different scaling factors, using different integer bit numbers (and / or fraction bit numbers).

[0122] 1.1) A fixed total quantization bit number is used for the measurement quantity to be reported, and different step sizes are used for different sub-measurement ranges. Using this quantization mode, quantization bits can be fully utilized, and different step sizes can be used for different ranges, with respect to different quantization accuracy requirements in different ranges. While saving signaling overhead, it can ensure the angular accuracy after mapping, ultimately ensuring the accuracy of narrow beam selection in beam management. The reported values have an association relationship with the sub-measurement ranges, and / or the step sizes.

[0123] Optionally, the association relationship may be an association relationship between reported values and sub-measurement ranges. A specific implementation thereof may be to define multiple measurement intervals, each measurement interval corresponding to a step size, where each measurement interval has a corresponding upper limit and lower limit of the value of the measurement quantity. For each measurement interval, multiple sub-measurement ranges, and / or a correspondence relationship between the sub-measurement ranges and the reported values, can be determined according to the corresponding step size. For example, the value of the reported measurement quantity may be defined by a value of Q bits, the step size corresponding to interval [X0,Xn1) is S1, the step size corresponding to interval [Xn1,Xne] is S2, and the total measurement range is [X0,Xne]. Further, the interval [X0,Xn1) may be divided into sub-measurement ranges using the step size S1, e.g., [X0,X1), [X1,X2),..., [Xn0,Xn1), and there is a corresponding reported value (or quantization value) corresponding to each sub-measurement range.

[0124] Optionally, the association relationship may be an association relationship between reported values and sub-measurement ranges and step sizes.

[0125] As shown in Table 1, in this implementation, the total measurement range may be [X0,Xne]. Within this range, a plurality of corresponding sub-measurement ranges (e.g.,[X0,X1), [X1,X2), etc.) may be divided into according to the one or more step sizes (e.g., S1, S2,..., Sne, etc.). When a measurement value of the measurement quantity is less than X0, it may be quantized as a quantization value "measurement quantity_0 (e.g., it may be 0 or any other numerical value)"; when a measurement value of the measurement quantity is greater than or equal to X0and less than X1, it may be quantized as a quantization value "measurement quantity_1 (e.g., it may be 1 or any other numerical value)", and so on. The reported measurement quantity (which may also be referred to as a reported value) may be represented by a value of Q bits. In this implementation, the reported value of the measurement quantity may be a quantization value of the measurement quantity directly, such as measurement quantity_0, measurement quantity_1, etc.

[0126] The step sizes corresponding to different sub-measurement ranges may not be equal. For example, one or more of S1, S2,..., Sne, etc. may be the same or different. Q bits may represent 2Qpossible reported values, specifically, it may represent a range from Q bits of 00...0 to Q bits of 11...1. The quantization bit number Q needs to satisfy that the number of possible reported values 2Qis greater than the number of quantization intervals ne+1+ 1 of the reported values as shown in Table 1 (Measurement report mapping).

[0127] The mapping relationship of the measurement quantity is shown in Table 1. The range in signaling may be larger than the guaranteed accuracy range. For example, the range of the 2Qpossible reported values represented by Q bits (e.g., the maximum value "11...1" of the Q bits) needs to be larger than the reported value of the measurement quantity "measurement quantity_ne+1", which is to ensure that all measurement values can be reported, for example, all of the ne+1+ 1 numbers from 0 to ne+1can be represented by 2Q, i.e., 2Qis greater than or equal to ne+1+ 1, i.e., the integer value 2Qis greater than ne+1.

[0128]

[0129] As shown in Table 1, the total measurement range of the measurement quantity is X0to Xne, and the step sizes in each sub-measurement range are S1, S2,..., Snerespectively. Each step size may be all different, or may be partially the same and / or partially different with each other. In a certain case, each step size may be the same, which may be regarded as a fallback to a form of a fixed step size. As shown above, Table 1 shows an association relationship between reported values of the measurement quantity and multiple measurement value ranges and multiple quantization step sizes. In some cases, the third column (the "Step size" column) may be omitted from Table 1. In this case, Table 1 shows an association relationship between reported values of the measurement quantity and a plurality of measurement value ranges (having at least two (different) quantization step sizes).

[0130] Table 2 (Measurement report mapping for RSRP) shows an example case in which the measurement quantity is RSRP. As shown in Table 2, the range in signaling may be larger than the guaranteed accuracy range. The reported value of RSRP is in unit of dBm.

[0131]

[0132] In Table 1 and Table 2, since the step sizes can be determined based on the second column, that is, the measurement quantity value (or the measurement value of the measurement quantity), in some application scenarios, the third column "Step size" can be omitted, and the step sizes can be determined based on the second column (i.e., the measurement quantity value) respectively as needed.

[0133] Optionally, in some application scenarios, the second column "measurement quantity value" can be omitted, and the second column can be determined based on the reported values in the first column and the step sizes in the third column, that is, the range of the measurement quantity corresponding to each reported value is determined.

[0134] When the UE is configured to use a fixed total quantization bit number and use different step sizes for different sub-measurement ranges, the UE side behavior includes at least one of the following:

[0135] ●the UE determines a mapping relationship for the measurement report, such as the tables shown in Table 1 or Table 2, or the corresponding description;

[0136] ●the UE calculates a measurement quantity, such as at least one of the following: RSRP, RSRP ratio; equivalent channel estimate ratio, RSRPP ratio; a measurement quantity related to angular information;

[0137] ●the UE finds a corresponding reported value based on the calculated measurement quantity value and the mapping relationship for the measurement report; and

[0138] ●the UE reports the measurement value;

[0139] 1.2) A fixed total quantization bit number is used for the measurement quantity to be reported, and sub-measurement ranges are adjusted by using scaling factors, to realize dynamic quantization. The method divides the entire measurement range of the measurement quantity into several sub-measurement ranges, corresponding to different scaling factors respectively, to meet different accuracy or discrimination requirements. For example, for an interval with higher accuracy (or discrimination) requirements, the corresponding scaling factor can be smaller to achieve a smaller quantization step size within the range represented by the same quantization bit number. If a certain measurement quantity corresponds to multiple possible representations, the UE may report the representation with the highest accuracy (or smallest step size) to achieve more accurate quantization. The reported values (or quantization values) have an association relationship with the scaling factors, and / or a plurality of measurement intervals, and / or sub-measurement ranges.

[0140] The accuracy requirements, discrimination requirements or step size requirements here all represent the fineness of the difference between the actual measurement values corresponding to the reported values in different ranges. Specifically, the higher the accuracy requirement or the higher the discrimination requirement or the smaller the step size requirement, the higher the fineness of the difference between the actual measurement values corresponding to the reported values. For example, the accuracy requirement of a difference of 0.01 between the actual measurement values corresponding to the reported values is higher than the accuracy requirement of a difference of 1 between the actual measurement values corresponding to the reported values.

[0141] The specific implementation of using a fixed total quantization bit number and scaling factors to achieve dynamic quantization may be as follows. In this implementation, a reported measurement quantity (e.g., a total reported value) may include two parts, one part of which may be used to represent a scaling factor (e.g., a scaling factor field value) and the other part of which may be used to represent a quantization value of the measurement quantity (e.g., quantization values as shown in Table 4: measurement quantity_0, measurement quantity_1, etc.). The scaling factor corresponding to the reported value of the measurement quantity may be represented by Qsbits, which may represent a range of Qsbits of 00...0 to Qsbits of 11...1, a total of 2Qsscaling factors. The measurement quantity may be represented by Q bits, which may represent a range of Q bits of 00...0 to Q bits of 11...1, a total of 2Qpossible reported values. The scaling factor represented by Qsbits (e.g., the scaling factor field value) and the measurement quantity represented by Q bits (e.g., the quantization value of the measurement quantity) together constitute the reported measurement quantity (e.g., the total reported value) together. The scaling factor of Qsbits may be located in front of or behind the measurement quantity of Q bits, or they may be placed independently at different locations for transmission, which is not limited herein. The use of a fixed total quantization bit number may refer to that the reported total quantization bit number Qs+Q is a fixed value.

[0142] Specifically, the scaling factor of Qsbits may correspond to a mapping relationship, as shown in Table 3 (Scaling factor mapping). The range in signaling may be larger than the guaranteed accuracy range.

[0143]

[0144] The bit number Qsmeets that the number of choices of the field value of the scaling factor that needs to be represented is no more than 2Qspossibilities. Each field value may be mapped to a scaling factor correspondingly. The scaling factor values SC0, SC1,..., SCnsrespectively corresponding to the field values of the scaling factor 0,1,...,nsmay satisfy a monotonically decreasing relationship, such as SC0< SC1<...< SCns, or a monotonically increasing relationship, such as SC0> SC1>...> SCns. The satisfaction of a monotonically decreasing (or increasing) relationship makes it more intuitive when perform calculation according to the tables. In addition, the size relationship of SC0, SC1,..., SCnsmay also be specifically defined according to specific requirements, which is not particularly limited herein.

[0145] Optionally, the selection of the scaling factor value may be determined by the following factors together: measurement quantity interval ranges, and accuracy requirements within the measurement quantity interval ranges. Specifically, since a fixed total quantization bit number is used to quantize the intervals, the number of total possible reported values represented is fixed. A certain scaling factor value corresponding to a field value of the scaling factor needs to satisfy that under the scaling influence of the scaling factor, the corresponding measurement quantity range can cover the minimum value and / or maximum value of the measurement quantity that needs to be represented. In addition, for a measurement quantity interval range that requires high scaling accuracy, the scaling factor may be set smaller to correspond to a smaller step size.

[0146] The measurement quantity of Q bits may correspond to a mapping relationship, as shown in Table 4 (Mapping of reported values (or quantization values) of the measurement quantity). The range in signaling may be larger than the guaranteed accuracy range.

[0147]

[0148] Here, the Q bits may represent 2Qpossible quantization values, and it needs to be satisfied that 2Qis larger than the number of quantization values that need to be distinguished, for example, 2Q> ne+1.

[0149] The calculation equation of the actual measurement value satisfies:

[0150] Actual measurement value = scaling factor * reported value of the measurement quantity.

[0151] When the UE reports the measurement quantity, and when the actual measurement value may be represented by more than one "scaling factor field value and reported measurement value" combination, the UE can report it in a combination with higher accuracy (or smaller step size). Optionally, using a scaling factor-based reporting method, the UE does not need to know the start and stop points of the sub-measurement ranges when calculating to obtain the mapping relationship for the measurement report, and the number of bits of the scaling factor combined with the reported measurement quantity implicitly represents the start and stop points of the sub-measurement ranges, which is intuitive and easy for UE to implement.

[0152] For a measurement value of the UE, if there is more than one reporting method, the method with the highest accuracy can be selected for reporting to improve the reporting accuracy.

[0153] A specific implementation of this method is as follows. For example, 1 bit is used to represent the selection of the scaling factor (for example, the scaling factor field value), and the corresponding scaling factor mapping is shown in Table 5.

[0154]

[0155] In addition, 5 bits may be used to represent the quantization value of the measurement quantity. The range represented by the 5 bits is 0 to 31, and the corresponding measurement quantity mapping may be shown in Table 6 (Mapping of reported RSRP ratio (e.g., when the scaling factor field value is 0)). Taking the RSRP ratio as an example of the measurement quantity to be reported, its corresponding measurement range is a real number not less than 0.

[0156]

[0157] When the scaling factor field value is 0, according to Table 5, the scaling factor value is 1. Assuming that the quantization step size corresponding to a scaling factor value of 1 is 2, then for a reported value range of the RSRP ratio of 0 to 30, the range of the actual measurement quantity (i.e., RSRP ratio) is 0 to 60, and the step size of the actual measurement quantity corresponding to each reported value is 2, as shown in Table 6.

[0158] When the scaling factor field value is 1, according to Table 5, the scaling factor value is 0.25, then for a reported value range of the RSRP ratio of 0 to 30, the range of the actual measurement quantity (i.e., RSRP ratio) is 0 to 15, and the step size of the actual measurement quantity corresponding to each reported value is 0.5, as shown in Table 7 (Mapping of reported RSRP ratio (e.g., when the scaling factor field value is 1)).

[0159]

[0160] For a measurement value of the UE, such as a RSRP ratio with the value of 5, there are two possible reporting methods. For example, the scaling factor field value is set to 0 and the quantization value is RSRP ratio_2, in which case the corresponding quantization step size is 2; and the scaling factor field value is set to 1 and the quantization value is RSRP ratio_10, in which case the step size is 0.5. In this case, the reporting method of the UE may be the method with a smaller step size, that is, the reporting method in which the scaling factor field value is set to 1, the reported value is RSRP ratio_10, and the step size is 0.5. This solution sets different scaling factors to different intervals of the measurement values to achieve different accuracy (or step size) requirements, thus to achieve dynamic quantization. In the specific implementation, the association relationship between the scaling factor field values, the scaling factors, and the sub-measurement ranges of the RSRP ratio is shown in Table 8 (Mapping of sub-measurement ranges of the RSRP ratio, scaling factor field values and scaling factors). When the scaling factor field value is 1, the corresponding scaling factor value is 0.25, the range of the actual measurement quantity (i.e., RSRP ratio) is 0 to 15, and the step size corresponding to each reported value is 0.5. When the scaling factor field value is 0, the scaling factor value is 1, and the range of the actual measurement quantity (i.e., RSRP ratio) is 15 to 60 (in this case, the range of 0 to 15 does not need to be reported with a scaling factor field value of 0).

[0161]

[0162] When the UE is configured to use a fixed total quantization bit number and use a scaling factor to adjust the sub-measurement ranges to achieve dynamic quantization, the UE side behavior includes at least one of the following:

[0163] ●the UE determines a mapping relationship for the measurement report, such as the scaling factor mapping table shown in Table 3 and / or the mapping table of reported values (or quantization values) of the measurement quantity shown in Table 4, or the corresponding description;

[0164] ●the UE calculates a value of the measurement quantity, where the measurement quantity includes at least one of the following: RSRP, RSRP ratio; equivalent channel estimate ratio, RSRPP ratio; a measurement quantity related to angular information;

[0165] ●the UE finds a corresponding reported value according to the calculated value of the measurement quantity in combination with the mapping relationship for the measurement report. For example, the UE finds a corresponding sub-measurement range and / or an integer bit number correspondingly according to the value of the measurement quantity. And / or, the reported value is a scaling factor field value combined with a reported value of the measurement quantity;

[0166] ●the UE reports a total reported value.

[0167] A specific implementation may be that the mapping relationship for the measurement report is as shown in Table 5, Table 6 and Table 7. The value of the measurement quantity calculated by the UE is 14.5, then the corresponding sub-measurement range is 0 to 15, the corresponding scaling factor value is 0.25, the corresponding scaling factor field value is 1, and the reported value of the RSRP ratio is RSRP ratio_29, then the total reported value is 111101, where the first 1 is the scaling factor field value, and 11101 is a binary representation of 29.

[0168] 1.3) A fixed total quantization bit number is used for the measurement quantity to be reported, and different bit numbers are used to represent the integer part (or fraction part) to correspond to different sub-measurement ranges and accuracies. When a fixed total quantization bit number is used to represent a numerical value, the more integer bit number used, the fewer bits that can be used to represent the fraction part, and the lower the accuracy of the corresponding numerical value change, but the numerical range represented (or sub-measurement range) is larger; or the fewer integer bit number used, the more bits that can be used to represent the fraction part, and the higher the accuracy of the corresponding numerical value change, but the numerical range represented is smaller. This property corresponds to the case of an uneven mapping relationship between RSRP ratio / equivalent channel estimation ratio and the angular information where the smaller the numerical range, the higher the accuracy required. The reported value has an association relationship with the integer bit numbers and / or fraction bit numbers and / or the sub-measurement ranges and / or the accuracies.

[0169] Herein, one bit of the bits representing the integer part may be used to represent a sign. Specifically, when the sign of the measurement quantity to be reported is always the same, the sign needs not to be reported. When the sign of the measurement quantity to be reported may be different, the sign needs to be reported.

[0170] The specific implementation of using a fixed total quantization bit number and different integer bit numbers (or fraction bit numbers) to implement dynamic quantization may be as follows. The reported measurement quantity (e.g., the total reported value) may include two parts, a first part may be used to represent the quantization bit number used for the integer part (which may be referred to herein as integer bit number) or may be used to represent the quantization bit number used for the fractional part (which may be referred to herein as fraction bit number), and a second part may represent the quantization value of the measurement quantity. Correspondingly, the first part may also be called an integer bit number field or a fraction bit number field. The integer bit number field (or fraction bit number field) may be represented by Qbbits, and the range that may be represented is Qbbits of 00...0 to Qbbits of 11...1, corresponding to 2Qbpossible values. The quantization value of the measurement quantity may be represented by Q bits, and the range that may be represented is Q bits of 00...0 to Q bits of 11...1, a total of 2Qpossible values. The integer bit number field (or fraction bit number field) represented by Qbbits and the quantization value of the measurement quantity represented by Q bits constitute the measurement quantity to be reported together. The integer bit number field (or fraction bit number field) of the Qbbits may be located in front of or behind the quantization value of the measurement quantity of the Q bits, or they may be placed independently at different locations for transmission, which is not limited herein. The use of a fixed total quantization bit number may refer to that the reported total quantization bit number Qb+ Q is a fixed value.

[0171] Specifically, the integer bit number (or fraction bit number) represented by the Qbbits corresponds to a mapping relationship, as shown in Table 9 (Mapping of integer bit number (or fraction bit number)). The range in signaling may be larger than the guaranteed accuracy range.

[0172]

[0173] The bit number Qbmeets that the number of choices of the integer bit number (or fraction bit number) that needs to be represented is no more than 2Qbpossibilities. Each field value may be mapped to an integer bit number (or fraction bit number) correspondingly. The integer bit numbers (or fraction bit numbers) B0, B1, ..., Bnbrespectively corresponding to the field values 0,1, ..., nbmay satisfy a monotonically decreasing relationship, such as B0< B1<...< Bnb, or a monotonically increasing relationship, such as B0> B1>...> Bnb. The satisfaction of a monotonically decreasing (or increasing) relationship makes it more intuitive when perform calculation according to the tables. In addition, the size relationship of B0, B1, ..., Bnbmay also be specifically defined according to specific requirements, which is not particularly limited herein. Herein, the integer bit numbers (or fraction bit numbers) B0, B1, ..., Bnbmeets that they do not exceed Q bits.

[0174] Specifically, the correspondence relationship between the Q bits used to represent the measurement quantity, and the bit number representing integer part, and the bit number representing fraction part satisfies:

[0175] Q = the bit number representing integer part + the bit number representing fraction part

[0176] Optionally, the selection of the integer bit number (or the fraction bit number) may be determined by the following factors together: measurement quantity interval ranges, and accuracy requirements within the measurement quantity interval ranges. Specifically, since a fixed total quantization bit number is used to quantize the intervals, the number of total possible reported values represented is fixed. The integer bit number (or fraction bit number) corresponding to the integer bit number (or fraction bit number) field value needs to satisfy the requirement that when using the integer bit number (or fraction bit number), the corresponding measurement quantity range can cover the minimum value and / or maximum value of the measurement quantity that needs to be represented. In addition, for a measurement quantity interval range that requires high scaling accuracy, the integer bit number may be set smaller, or the fraction bit number may be set larger, to correspond to a smaller step size.

[0177] The measurement quantity of Q bits may correspond to a mapping relationship, as shown in Table 4, which is not repeated here.

[0178] The calculation equation of the actual measurement value satisfies:

[0179] Actual measurement value = measurement value represented by the integer bits + measurement value represented by the fraction bits

[0180] The fraction bit number can be calculated from the quantization bit number of the measurement quantity (such as Q) and the integer bit number. Optionally, the fraction bit number is obtained by subtracting the integer bit number from the quantization bit number of the measurement quantity. Similarly, the integer bit number can be calculated from the quantization bit number of the measurement quantity and the fraction bit number. Optionally, the integer bit number is obtained by subtracting the fraction bit number from the quantization bit number of the measurement quantity. Furthermore, the corresponding measurement range and step size can be calculated based on the integer bit number value and / or the fraction bit number value.

[0181] For a value of the measurement quantity, when there is more than one corresponding representation method of the reported value, a representation method with higher corresponding accuracy (that is, with more fraction bit number) may be used.

[0182] A specific implementation of the method is as follows. For example, 1 bit is used to represent the selection of the integer bit number (i.e., the integer bit number field), and 5 bits are used to represent the quantization value of the measurement quantity (for example, the quantization values as shown in Table 4: measurement quantity_0, measurement quantity_1, etc.). Taking the RSRP ratio as an example of the measurement quantity to be reported, its corresponding measurement quantity range is a real number greater than 0. Specifically, as for a certain mapping relationship for the measurement report, when the integer bit number field value is 0, the corresponding integer bit number is 5; and when the integer bit number field value is 1, the corresponding integer bit number is 2. When the quantization value of the measurement quantity is represented by 5 bits, and the integer bit number field value is 0, and the corresponding integer bit number is 5, it can be calculated that the fraction bit number is 0, the corresponding measurement range is 0 to 31, and the step size is 1; when the integer bit number field value is 1 and the corresponding integer bit number is 2, the fraction bit number is calculated to be 3, the corresponding measurement range is 0 to 3.875, and the step size is 0.125. The corresponding table is shown as Table 10 (Mapping of integer bit number). It is worth noting that in Table 10, corresponding to the integer bit number field value of 0, the measurement range is 4 to 31. This is because the measurement range 0 to 3 can be represented the by the integer bit number field value of 1, which is of a higher accuracy.

[0183]

[0184] Using the method described in Table 10, the mapping of integer bit number can be replaced by a mapping of fraction bit number, which will not be described again here.

[0185] Using the same (or fixed) quantization bit number for quantization, the UE and base station do not need additional signaling to inform the length or number of the quantization bits, but by further using different methods, such as using different step sizes, different scaling factors or different integer bit number (or fraction bit number), the measurement accuracy can be flexibly changed, to achieve different quantization differentiation on different intervals.

[0186] When the UE is configured to use a fixed total quantization bit number and use different numbers of bits to represent integer part (or fraction part) to correspond to different sub-measurement ranges and accuracies, the UE side behavior includes at least one of the following:

[0187] ●the UE determines a mapping relationship for the measurement report, such as the integer bit number (or fraction bit number) mapping table shown in Table 10 and / or the mapping table of reported values (or quantization values) of the measurement quantity shown in Table 4, or the corresponding description;

[0188] ●the UE calculates a value of the measurement quantity, where the measurement quantity includes at least one of the following: RSRP, RSRP ratio; equivalent channel estimate ratio, RSRPP ratio; a measurement quantity related to angular information;

[0189] ●the UE finds a corresponding reported value according to the calculated value of the measurement quantity in combination with the mapping relationship for the measurement report. For example, the UE finds a corresponding sub-measurement range and / or a step size and / or an integer bit number and / or a fraction bit number and / or an integer bit number field value and / or a fraction bit number field value according to the value of the measurement quantity, and the reported value is the integer bit number field value (or fraction bit number field value) and the reported value of the measurement quantity;

[0190] ●the UE reports a total reported value.

[0191] A specific implementation may be that the mapping relationship for the measurement report is as shown in Table 10. A value of the measurement quantity calculated by the UE is 3.5, then the corresponding sub-measurement range is 0 to 3.875, the corresponding step size is 0.125, integer bit number is 2, fraction bit number is 3, and the corresponding integer bit number field value is 1. The measurement quantity 3.5 is represented as 11100 with an integer bit number of 2 and a fraction bit number of 3, and the total reported value is 111100.

[0192] 2) A dynamic (which may also be referred to herein as "flexible") quantization bit number is used for the measurement quantity to be reported, in order to correspond to different measurement ranges and accuracies. More quantization bits are used for areas with high quantization accuracy requirements, and fewer quantization bits are used for areas with low quantization accuracy requirements, which can improve the overall performance by making full use of the quantization bits.

[0193] In the dynamic quantization bit number method above, the measurement quantity to be reported (e.g., the total reported value) may be divided into two parts, the first part is a fixed quantization bit number (that is, a fixed quantization bit number is used to represent the measurement quantity), and the second part may be determined based on the measurement value range of the first part. If it is determined according to the reported measurement quantity of the first part that higher accuracy is required, more quantization bits can be allocated to the second part; and if it is determined according to the reported measurement quantity of the first part that low accuracy can be used, fewer quantization bits (or even no quantization bits) can be allocated to the second part.

[0194] A corresponding specific implementation may be shown in Table 11 (Mapping of dynamic quantization bit number), in which the mapping relationship of using a fixed quantization bit number to represent the measurement values is shown in Table 4, that is, a fixed quantization bit number, such as Q bits, are used to quantize the reported values. As for a certain measurement value, it is first quantized with fixed quantization bits, such as the quantization bits of Table 4. Then, a dynamic quantization bit number for further refinement can be determined according to the range of the measurement value. For example, the corresponding dynamic quantization bit number may be obtained according to Table 4.

[0195]

[0196] As shown in Table 11, when the field value is 0, the corresponding measurement quantity < Y0, and the measurement value can be further quantized with N0bits after being quantized with a fixed quantization bit number, such as Q bits. Therefore, when the measurement value is in different intervals, the corresponding total quantization bit number used are different, because the dynamic quantization bit numbers corresponding to different intervals (or sub-measurement ranges) may be different (for example, N0and N1may be different).

[0197] Optionally, the specific implementation of the dynamic quantization bit number is also shown in Table 12, in which Table 11 and Table 4 are combined, and the same table simultaneously represents the mapping of the dynamic quantization bit numbers and the mapping of the reported values of the measurement quantity (or quantization value).

[0198] As shown in Table 12 (Mapping of dynamic quantization bit number), when the value of the measurement quantity < X0, the corresponding reported value of the measurement quantity is measurement quantity_0. In this case, the corresponding dynamic quantization bit number field value is F0, the dynamic quantization bit number is N0, and the total reported value includes the reported value of the measurement quantity and / or the dynamic quantization bit number field value and / or a reported value corresponding to the dynamic quantization bit number. Optionally, the dynamic quantization bit number field values F0, F1, ..., Fe+1may be partially the same or different. The corresponding dynamic quantization bit numbers N0, N1, ..., Ne+1may be partially the same or different. Using a single table to characterize both features simultaneously can be simpler and intuitive.

[0199]

[0200] The specific implementation method of the reported value corresponding to a dynamic quantization bit number may be at least one of the following: performing further quantization directly using the dynamic quantization bit number based on the mapping of the dynamic quantization bit numbers.

[0201] The mapping based on the dynamic quantization bit numbers may be that each dynamic quantization bit number may have a corresponding mapping relationship as shown in Table 4. That is, each reported value of the measurement quantity has a corresponding measurement range.

[0202] The performing further quantization directly using the dynamic quantization bit number may be to further quantize the value of the measurement quantity using the dynamic quantization bit number, where the further quantization may be to further quantize the integer part and / or the fraction part of the value of the measurement quantity, and in this case, the dynamic quantization bit number includes the integer bit number and / or the fraction bit number. Specifically, the integer bit number and / or the fraction bit number in the dynamic quantization bit number may be preset, or may be determined as in the quantization mode described above in which a fixed quantization bit number is used but different bit numbers are used to represent the integer part (or fraction part) to correspond to different sub-measurement ranges and accuracies, or may be determined by the corresponding configuration of the base station, which will not be described again here.

[0203] The two parts of the dynamic quantization bit number method can be reported separately. After parsing the first part of the measurement quantity, the receiver determines the quantization bit number for the second part, and finally determines the value of the final measurement quantity jointly with the quantization bit numbers of the two parts.

[0204] When the UE is configured to use dynamic quantization bit number mapping, the UE side behavior includes at least one of the following:

[0205] ●the UE determines the mapping relationship for the measurement report, such as the dynamic quantization bit number mapping table shown in Table 11 and the mapping table of reported values (or quantization values) of the measurement quantity shown in Table 4, or the corresponding description;

[0206] ●the UE calculates a value of the measurement quantity, where the measurement quantity includes at least one of the following: RSRP, RSRP ratio; equivalent channel estimate ratio, RSRPP ratio; a measurement quantity related to angular information;

[0207] ●The UE calculates a corresponding reported value according to the calculated value of the measurement quantity in combination with the mapping relationship for the measurement report. For example, the UE finds a corresponding representation in the mode using a fixed quantization bit number for quantization according to the value of the measurement quantity, and then finds a dynamic quantization bit number according to the mapping relationship of the dynamic quantization bit numbers, to perform further quantization;

[0208] ●the UE reports a total reported value.

[0209] Which one of the quantization mode using a fixed total quantization bit number and different step sizes, or the quantization mode using a fixed total quantization bit number and different scaling factors, or the quantization mode using a fixed total quantization bit number and different integer bit numbers (and / or fraction bit numbers), or the quantization mode using dynamic quantization bit numbers is used to determine the final measurement quantity may be determined by the base station and UE in a default way (for example, specified by protocol or pre-configured) to save signaling overhead, or the quantization mode may be configured by the base station, and the UE reports according to the quantization mode after receiving the configuration. The base station configuring the quantization mode for the measurement quantity may include that the base station configures at least one of the following parameters: total quantization bit number, integer bit number, fraction bit number, scaling factor, step size, quantization bit number of the measurement quantity (i.e., the number of bits used to represent the quantization value of the measurement quantity), etc. This method facilitates the base station to determine the optimal quantization mode based on the value of the measurement quantity in combination with specific application scenarios. For example, after the UE performs reporting using a default method, the base station can configure a new quantization mode based on the measurement result to obtain a more suitable quantization result.

[0210] A specific implementation in which the base station configures a quantization mode for the measurement quantity may be that the base station configures an index of the quantization mode for reporting the measurement quantity. After receiving the configuration, the UE reports the measurement quantity according to the configured quantization mode index.

[0211] A specific implementation in which the base station configures a quantization mode index for reporting the measurement quantity may be that the base station configures the quantization mode index of the measurement quantity, and there is a mapping table corresponding to each quantization mode index of the measurement quantity configured by the base station. That is, corresponding to each quantization mode index of the measurement quantity, there is a mapping table between reported values and the values of the measurement quantity. Specifically, this mapping table may specify at least one of the following: total quantization bit number, integer bit number, fraction bit number, scaling factor, step size, quantization bit number of the measurement quantity, etc. For example, the specified content of the mapping table may be the quantization bit number of the measurement quantity. That is, as for each configured quantization bit number Q of the measurement quantity, there is a table as shown in Table 4 corresponding thereto. After receiving the quantization mode index, the UE finds the corresponding mapping table, and then calculates a corresponding reported value based on the value of the measurement quantity for reporting, where the reported values have a one-to-one mapping relationship with the ranges of the measurement quantity, and the final reporting result includes at least one of the following: the reported value of the measurement quantity, the quantization value of the measurement quantity, the integer bit number field value, the fraction bit number field value, the scaling factor field value, etc. Different mapping tables are used for different quantization modes. Only parameters related to the quantization mode index need to be configured, and the UE performs reporting through a table lookup method, which is simple and intuitive.

[0212] A specific implementation in which the base station configures a quantization mode index for reporting the measurement quantity may also be that the base station configures a quantization mode index for the measurement quantity, where each quantization mode index corresponds to a specific value of at least one of the following parameters: total quantization bit number, integer bit number, fraction bit number, scaling factor, step size, quantization bit number of the measurement quantity, etc. The UE performs quantization directly according to the specific parameter values corresponding to the configured quantization mode and then performs reporting. For example, if the quantization mode index configured by the base station corresponds to two parts including the quantization bit number of the measurement quantity and integer bit number, then after being configured, the UE can correspondingly obtain the integer bit number and the fraction bit number, where the fraction bit number is obtained by subtracting the integer bit number from the quantization bit number of the measurement quantity (for a measurement quantity with a sign, the number of bits occupied by the sign needs to be considered), and then the UE performs quantization according to the specific values of the integer bit number and the fraction bit number and then performs reporting.

[0213] In some implementations, there is an explicit or implicit relationship between the parameters (for example, total quantization bit number, integer bit number, fraction bit number, scaling factor, step size, quantization bit number of the measurement quantity, etc.) included in the quantization mode for the measurement quantity configured by the base station. That is, after obtaining at least one of the above parameters, other parameters can be deduced. For example, assume that it is preset that when the configured quantization bit number is 7, the corresponding integer bit number is 7 and fraction bit number is 0; and when the configured quantization bit number is 9, the corresponding integer bit number is 4 and fraction bit number is 5. If the quantization mode for the measurement quantity configured by the base station is the quantization bit number of the measurement quantity, and if the configured quantization bit number of the measurement quantity is 7, then the corresponding integer bit number can be determined to be 7, and the fraction bit number can be determined to be 0. If the configured quantization bit number of the measurement quantity is 9, then the corresponding integer bit number can be determined to be 4, and the fraction bit number can be determined to be 5. That is, the quantization bit number of the measurement quantity not only explicitly indicates how many bits are used to represent the measurement quantity, but also implicitly indicates how many bits are used to represent the integer part and the fraction part respectively in the quantization bit number of the measurement quantity. Optionally, the implicit relationship may be that when the base station allocates a smaller quantization bit number for the measurement quantity, the corresponding integer bit number is more, and when the base station allocates a larger quantization bit number for the measurement quantity, the corresponding fraction bit number is more. Using such an implicit method, signaling overhead can be saved and the quantization parameter of the measurement quantity can be accurately specified.

[0214] The specific implementation in which the UE performs reporting according to the quantization mode for the measurement quantity configured by the base station may include at least one of the following: the UE receives the quantization mode for the measurement quantity configured by the base station; the UE explicitly or implicitly obtains the parameters required when reporting the measurement quantity according to the quantization mode for the measurement quantity configured by the base station; and the UE quantizes the measurement values and reports them. By means of the method for configuring the quantization mode for the measurement quantity by the base station, the measurement quantity can be expressed more flexibly and accurately. Especially, for a case where the quantization bit number is large or there are a lot of possible selections of quantization modes, this method can save the storage of tables brought by the use of table lookup methods, and quantize the measurement quantity directly.

[0215] In the present disclosure, when there are multiple reported values that need to be reported, any one of the multiple reported values may be determined and reported based on any of the above quantization modes and / or mapping relationships and / or association relationships. In addition, when there are multiple reported values that need to be reported, any one or more of the multiple reported values may be determined and reported using the same quantization mode and / or mapping relationship and / or association relationship, or may be determined and reported using different quantization modes and / or mapping relationships and / or association relationships.

[0216] When more than one reported values of the measurement quantity are reported at the same time, each reported value of the measurement quantity may be reported separately, or a method of difference reporting (or differential reporting) can be used. This method is suitable for a case where RSRPs corresponding to multiple reference signals included in a reference signal set are reported at the same time, or a case where the measurement quantity to be reported is a complex number and the real part and imaginary part of the complex number need to be reported separately (for example, when the measurement quantity to be reported is an equivalent channel estimation ratio). The differential reporting may include at least one of the following:

[0217] ■reporting a specific value of the plurality of measurement quantity;

[0218] the specific value may be a maximum value or a minimum value.

[0219] ■reporting a difference between another measurement quantity and the specific value.

[0220] The method of using difference reporting is suitable for a case where the differences between multiple measurement quantities are not large. Using difference reporting can reduce the signaling overhead for completely reporting each measurement value.

[0221] When the UE reports the specific value among the measurement values and the differences between other measurement values and the specific value, the receiver can calculate and obtain complete values of all reported values based on the received specific value and the differences.

[0222] When the measurement quantity to be reported is RSRP, the BS calculates a RSRP ratio after receiving the RSRP, and uses a one-to-one mapping relationship between RSRP ratios and angular information (for example, beam direction deviation) to obtain the angular information. The method in which the UE reports RSRP may include at least one of the following: using different reporting methods (or quantization modes) for RSRPs of different RSs; using indicators according to the magnitudes of the values of the measured RSRPs to reduce the reporting of RSRPs; and reporting each measured RSRP directly.

[0223] The using of different reporting methods (or quantization modes) for RSRPs of different RSs may mean using different reporting methods (or quantization modes) for RSRPs of different RSs that meet a certain condition. The different RSs that meet a certain condition may be RSs corresponding to the RSRPs used as denominator and numerator respectively when calculating the RSRP ratio. Optionally, the meeting of a certain condition may mean that beams related to resources associated with the reference signals are adjacent. The using of different reporting methods (or quantization modes) for RSRPs of different RSs is suitable for using different reporting methods (or quantization modes) for a RSRP used as numerator and a RSRP used as denominator, thereby improving the accuracy of ratio calculation. The different reporting methods may refer to that different combinations of different values of the various quantization parameters of the quantization modes (for example, total quantization bit length (or number), integer bit number, fraction bit number, scaling factor, step size, quantization bit number of the measurement quantity, etc.) are used for the numerator and the denominator in the RSRP ratio calculation.

[0224] A specific implementation for calculating the RSPR ratio is as the one-to-one mapping relationship between RSRP ratios and beam direction deviations as shown in FIG. 4, where Beam 1 corresponds to Reference signal 1, and the RSRP of Reference signal 1 (RS1) is RSRP1; Beam 2 corresponds to Reference signal 2, and the RSRP of Reference signal 2 (RS2) is RSRP2; Beam 3 corresponds to Reference signal 3, and the RSRP of Reference signal 3 (RS3) is RSRP3. The RSRP ratio of RS2 to RS1 is:

[0225]

[0226] The RSRP ratio of RS3 to RS1 is:

[0227]

[0228] It can be seen that in the calculation of RSRP ratio, RSRP2and RSRP3are calculated as the numerator and RSRP1is calculated as the denominator. The RSRP calculated as the numerator and the RSRP calculated as the denominator can be reported using different quantization modes to better utilize the impact of the change accuracy of the numerator and denominator on the ratio when calculating the ratio.

[0229] The using of indicators according to the magnitudes of the values of the measured RSRPs to reduce the reporting of RSRPs means that: after completing the measurement of the RSRPs, the UE initially determines angular directions according to the magnitudes of the RSRPs, in order to select RSRPs that needs to be reported and uses indicators to mark the selected RSRPs (in this case, the RSRPs to be reported are at least two RSRPs); or, the UE determines a RSRP ratio with the greatest influence among several RSRP ratios, and combines an indicator, and the numerator RSRP and denominator RSRP of the RSRP ratio with the greatest influence together as the reporting content. In this method, several indicators are used instead of the reporting of RSRPs. Compared with a method of reporting all RSRPs, the use of indicators requires fewer bits.

[0230] The RSRP reporting content may include at least one of the following: an indicator of a reference signal set, an indicator of a larger RSRP value in a reference signal set, an indicator of an RSRP ratio, a reported value of a first RSRP, and a reported value of a second RSRP, an index of the resource associated with the reference signal corresponding to the reported value of the first RSRP. Specifically, the reported value of the first RSRP may be used as the numerator in the RSRP ratio calculation, and the reported value of the second RSRP may be used as the denominator in the RSRP ratio calculation.

[0231] - Indicator of a reference signal set: when the reference signal resource number of a group of reference signal resources transmitted by the BS is greater than 3, that is, when the beam number of a corresponding group of beams is greater than 3, 3 adjacent beams are formed into a set, and each set corresponds to an indicator. The indicator of a reference signal sets supports more than 3 beams to splice a larger beam to increase coverage.

[0232] Specifically, in the method in which the UE reports RSRPs, and the BS calculates RSRP ratios after receiving the RSRPs and uses the RSRP ratios to obtain angular information, the reference signal resource number of a group of reference signal resources (or resources associated with the reference signals) (or a group of beams) transmitted by the BS is not limited, only with that the reference signal resource (or beam) number should be n > 2, that is, there are at least 3 reference signal resources or beams. When the reference signal resource (or beam) number of the group of reference signal resources (or beams) transmitted by the BS exceeds 3, more beams are spliced to expand the angular coverage of the beam management. The beams corresponding to the reference signals are divided in a way that 3 adjacent beams are divided as a set, and RSRPs are reported in unit of set when they are reported.

[0233] A specific implementation for reporting an indicator of a reference signal set may be at least one of the following: calculating all RSRPs corresponding to the group of reference signals transmitted; selecting three adjacent reference signals the three RSRPs corresponding to which are the largest; and reporting the indicator of a reference signal set corresponding to the three reference signals.

[0234] - Indicator of a larger RSRP value in a reference signal set: in a set of 3 adjacent beams, RSRPs of the reference signals corresponding to the beams on the two sides are compared, and the indicator corresponds to the larger one of the RSRPs. Specifically, the indicator is used to flag whether the beam corresponding to the larger RSRP value is a beam located to the left or right of the middle beam, and is used to determine whether the optimal transmission direction is located to the left or right of a central beam. The use of the indicator can reduce the reporting of RSRPs.

[0235] - Indicator of an RSRP ratio: an indicator corresponding to an RSRP ratio with the largest RSRP ratio among multiple RSRP ratios. The largest RSRP ratio has the greatest impact in angle calculation.

[0236] - The reported value of a first RSRP: including at least one of the following: the RSRP corresponding to the indicator of a larger RSRP value in a reference signal set, and a third RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio.

[0237] - The reported value of a second RSRP: including at least one of the following: an RSRP related to a specified reference signal in a set of 3 reference signals, and a fourth RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio. The specified reference signal may be a reference signal corresponding to the middle beam among the 3 beams corresponding to the 3 reference signals.

[0238] - An index of the resource associated with the reference signal corresponding to the reported value of the first RSRP. The resource associated with the reference signal corresponding to the first RSRP can be used to indicate the reference signal resource used by the first RSRP, so that to replace the indicator of a larger RSRP value in a reference signal set to express the information of the reference signal resource of the beam corresponding to the larger RSRP value.

[0239] - The third RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio and the fourth RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio are respectively used as the numerator and denominator in the RSRP ratio calculation. For example, the third RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio can be used as the numerator of the RSRP ratio calculation, and in this case, the fourth RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio is used as the denominator of the RSRP ratio calculation. Optionally, the third RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio can be used as the denominator of the RSRP ratio calculation, and in this case, the fourth RSRP in the RSRP ratio corresponding to the indicator of an RSRP ratio is used as the numerator of the RSRP ratio calculation.

[0240] - Optionally, when a group of transmitted reference signal resources only contains 3 reference signals, the indicator of a larger RSRP value in a reference signal set represents the same content as the indicator of an RSRP ratio. In this case, there are only two RSRP ratios.

[0241] - In a specific implementation, one indicator may be used to simultaneously represent the indicator of a reference signal set and the indicator of a larger RSRP value in a reference signal set.

[0242] According to an example implementation of the embodiments of the present disclosure, when a group of transmitted reference signal resources only contains 3 reference signals, the content reported by the UE may include:

[0243] Indicator of an RSRP ratioReported value of a first RSRPReported value of a second RSRP

[0244] The indicator of an RSRP ratio indicates which RSRP ratio the UE reports. In the reported content, the position order of the indicator of an RSRP ratio, the reported value of a first RSRP, and the reported value of a second RSRP is not limited, and the indicator of an RSRP ratio can be replaced by the indicator of a larger RSRP value in a reference signal set.

[0245] Specifically, taking FIG. 4 as an example, the BS transmits a group of reference signal resources including 3 reference signals, namely Reference signal 1, Reference signal 2 and Reference signal 3, which corresponds to a group of beams including 3 beams, namely Beam 1, Beam 2 and Beam 3. In the group of beams, the RSRP of the reference signal corresponding to Beam 1 which is served as the central beam can be reported as the second RSRP. The central beam can be used as a reference direction when calculating beam direction deviation. The RSRPs of the reference signals corresponding to Beam 2 and Beam 3 on the two sides of the central beam can be reported as the first RSRP. Specifically, there are two RSRP ratios corresponding to the 3 reference signals (or 3 beams): the RSRP ratio of Beam 2 to Beam 1 (or RS2 to RS1) , and the RSRP ratio of Beam 3 to Beam 1 (or RS3 to RS1) . 1 bit may be used as the indicator of an RSRP ratio. For example, when the indicator of an RSRP ratio is 0, it means that the RSRP ratio of Beam 2 and Beam 1 ( ) is reported at this time. Therefore, the reported value as the first RSRP is RSRP2, and the reported value as the second RSRP is RSRP1. When the indicator of an RSRP ratio is 1, it means that the RSRP ratio of Beam 3 and Beam 1 ( ) is reported at this time. Therefore, the reported value as the first RSRP is RSRP3, and the reported value as the second RSRP is RSPR1.

[0246] The selection of the indicator of an RSRP ratio can be determined by the magnitudes of the RSRP values. The indicator of an RSRP ratio identifies the beam with a larger RSRP of the corresponding reference signal among the two beams located on the two sides in the three adjacent beams corresponding to a reference signal set consisting of the three reference signals. For example, in FIG. 4, when RSRP2> RSRP3, it indicates that the optimal transmission direction in this case is closer to the transmission direction of Beam 2 as for Beam 2 and Beam 3. That is, compared to the reference signal energy received through Beam 3, the reference signal energy received through Beam 2 is greater. Therefore, in this case, the RSRP ratio of transmission Beam 2 and Beam 1 has a greater impact than the RSRP ratio of Beam 3 and Beam 1, and the numerator RSRP (that is, RSRP2) of the RSRP ratio of Beam 2 and Beam 1 ( ) and the denominator RSRP (that is, RSRP1) of the RSRP ratio of Beam 2 and Beam 1 ( ) is transmitted. In this case, the corresponding indicator of an RSRP ratio is 0.

[0247] Similarly, when RSRP3> RSRP2, it indicates that the optimal transmission direction in this case is closer to the transmission direction of Beam 3 as for Beam 2 and Beam 3. That is, compared to the reference signal energy received through Beam 2, the reference signal energy received through Beam 3 is greater. Therefore, in this case, the RSRP ratio of transmission Beam 3 and Beam 1 has a greater impact than the RSRP ratio of Beam 2 and Beam 1, and the numerator RSRP (that is, RSRP3) of the RSRP ratio of Beam 3 and Beam 1 ( ) and the denominator RSRP (that is, RSRP1) of the RSRP ratio of Beam 3 and Beam 1 ( ) is transmitted. In this case, the corresponding indicator of an RSRP ratio is 1.

[0248] It can be seen that compared with reporting 3 RSRPs, that is, RSRP1, RSRP2and RSRP3, using a 1-bit indicator can reduce the reporting of one RSRP, which can save the reporting amount. The indicator of an RSRP ratio provides direction deviation information (e.g., whether the optimal transmission direction is closer to Beam 2 or closer to Beam 3) with respect to the central beam (e.g., Beam 1 in FIG. 4), which can be used in combination with the corresponding RSRP value as the numerator and the RSRP value as the denominator to obtain the best transmission direction.

[0249] According to an example implementation of the embodiments of the present disclosure, the number of reference signal resources of a group of transmitted reference signal resources may be 4, that is, the number of corresponding beams is 4 in this case. When the UE receives the group of reference signals, it can first determine the three largest RSRPs to determine 3 reference signals used for determining angular information in the corresponding set. For example, let the group of transmitted reference signals be Reference signal 1, Reference signal 2, Reference signal 3 and Reference signal 4 respectively. After receiving the 4 reference signals, the UE calculates the corresponding RSRPs of the 4 reference signals respectively, and then selects the three signals with the largest RSRPs, such as Reference signal 1, Reference signal 2 and Reference signal 3. Then the following operations are the same as the case where a group of reference signal resources contains 3 reference signals.

[0250] When the number of reference signal resources of a group of transmitted reference signal resources is greater than 3, an indicator of a reference signal set and an indicator of a larger RSRP value in a reference signal set can be used simultaneously. For example, when the number of reference signal resources of a group of transmitted reference signal resources is 4 (where the corresponding reference signals are Reference signal 1, Reference signal 2, Reference signal 3 and Reference signal 4), and the angles of Beam 1, Beam 2, Beam 3 and Beam 4 corresponding to Reference signal 1, Reference signal 2, Reference signal 3 and Reference signal 4 change monotonically, there may be two corresponding sets, each of which contains three reference signals used for determining angular information. That is, the first set / group contains Reference signal 1, Reference signal 2, and Reference signal 3, and the second set / group contains Reference signal 2, Reference signal 3, and Reference signal 4. This is because when the angles of Beam 1, Beam 2, Beam 3 and Beam 4 change monotonically, the beams corresponding to the three reference signals with the largest RSRPs are three adjacent beams. In this case, the indicator used may be of 2 bits, and a specific implementation may be as shown in Table 14 (Mapping of indicator of an RSRP ratio for a group of 4 reference signal resources).

[0251]

[0252] In this case, reporting of a 2-bit indicator and two RSRPs can replace the reporting of 4 RSRPs, which is especially suitable for situations where the reported values of RSRP requires large quantization bits, which can effectively save reporting overhead. In this case, the most significant bit of the indicator represents the indicator of a reference signal set. That is, for example, when the indicator is 0, it indicates that the beams corresponding to the selected reference signal set include Beam 1, Beam 2 and Beam 3.

[0253] In this way, the number of reference signals of a group of transmitted reference signals can be larger, and the specific implementation thereof will not be described again here.

[0254] The method of reporting RSRP directly mentioned above means that for a group of reference signals transmitted by the BS, after measuring the RSRPs corresponding to each reference signal, the UE reports them respectively. A unified quantization mode can be used for each RSRP, or different quantization modes can be used. Optionally, when a unified quantization mode is used, and the quantization bit is 7 and / or the step size is 1dB, the RSRP reporting method falls back to a legacy RSRP reporting method with 7-bit quantization and 1dB step size, which may be compatible with the existing protocols. After receiving the RSRPs corresponding to each reference signal, the base station may use a beam management method based on RSRP ratio, or fall back to use a beam management method based on beam sweeping. Which specific beam management method to use is determined by the base station according to the specific application scenario. Such a fallback mechanism makes the method compatible with existing beam management methods and is suitable for coexistence with legacy UEs, for example. Moreover, the situation of reporting each RSRP value enables the base station to obtain information about each transmitted beam. Compared with the situation of only reporting RSRPs corresponding to several beams, the base station can obtain more comprehensive beam information.

[0255] By means of the method of reporting RSRP, the original measurement quantity information can be obtained.

[0256] When the measurement quantity to be reported is an RSRP ratio, after receiving RSRP ratios, the BS can use a one-to-one mapping relationship between RSRP ratios and angular information (for example, beam direction deviation) to obtain the angular information. The method of reporting RSRP ratios may include at least one of the following: reporting each of the RSRP ratios; reporting an indicator of an RSRP ratio and the corresponding RSRP ratio.

[0257] The RSRP ratio is defined as the linear average of power contributions (in [w]) of resource elements carrying a reference signal RS1 divided by the linear average of power contributions (in [w]) of resource elements carrying a reference signal RS2. Where the linear average of the power contributions (in [w]) of the resource elements carrying the reference signal RS1 is the RSRP of the reference signal RS1, expressed as RSRP1. Similarly, the linear average of the power contributions (in [w]) of the resource elements carrying the reference signal RS2 is the RSRP of the reference signal RS2, expressed as RSRP2, where the RSRP ratio can be expressed as:

[0258]

[0259] The method of reporting RSRP ratios may be to report each of the RSRP ratios. For example, in FIG. 4, the RSRP ratio of the RSs corresponding to Beam 2 and Beam 1 is reported, and the RSRP ratio of the RSs corresponding to Beam 3 and Beam 1 is reported. Optionally, when the number of reference signals of a group of transmitted reference signals is greater than 3, the method of reporting RSRP ratios may include one of the following: dividing the beams corresponding to the reference signals according to three adjacent beams as a set; in a set of 3 adjacent beams, using the RSRP of the reference signal corresponding to the beam located in the middle as the denominator and the RSRPs of the reference signals of the beams located on the two sides as the numerator, and two RSRP ratios can be obtained; reporting the two RSRP ratios corresponding to each reference signal set respectively. The method of reporting each of the RSRP ratios can enable the base station to obtain comprehensive RSRP ratio information. Optionally, the RSRP of the reference signal corresponding to the beam located in the middle may also be used as the numerator, and the RSRP of the reference signals of the beams located on the two sides can be used as the denominator. The RSRP corresponding to which reference signal is served as the numerator or denominator may be preset by the base station and the UE, or may be configured by the base station to the UE, for example, through RRC signaling or DCI or MAC CE, etc.

[0260] In a possible embodiment, a two-to-one mapping relationship may be formed with two RSRP ratios and one piece of angular information are used to form, as shown in FIG. 12. RSRP ratio 1 and RSRP ratio 2 correspond to one piece of angular information. Compared with the method of using two RS to generate an RSRP ratio, forming a one-to-one mapping relationship with the angular information, and using the one-to-one mapping relationship to perform beam management, using the two-to-one mapping relationship can improve the accuracy of beam selection and extend the measurement range.

[0261] The method of reporting RSRP ratios may also be to use an indicator according to the magnitudes of several RSRP ratios to reduce the reporting of the RSRP ratios. By means of this method, compared with the method of reporting all RSRP ratios, the amount of reporting can be reduced. Specifically, the RSRP ratio reporting content may include at least one of the following: an indicator of a reference signal set, an indicator of an RSRP ratio, an RSRP ratio, and an index of resources associated with the other reference signals except a specified reference signal in the RSRP ratio calculation.

[0262] - Indicator of a reference signal set: when the reference signal resource number of a group of reference signal resources transmitted by the BS is greater than 3, that is, when the beam number of a corresponding group of beams is greater than 3, 3 adjacent beams are formed into a set, and each set corresponds to an indicator. The indicator of a reference signal sets supports more than 3 beams to splice a larger beam to increase coverage. The specific implementation of the reported indicator of a reference signal set is referred to the description above and will not be described again here.

[0263] - Indicator of an RSRP ratio: the indicator of an RSRP ratio includes at least one of the following: the indicator of a reported RSRP ratio among the two RSRP ratios corresponding to the indicator of a reference signal set; the indicator of a reported RSRP ratio among all the calculated multiple RSRP ratios. The specific implementation of reporting the indicator of an RSRP ratio may be to report the indicator corresponding to the largest RSRP ratio in the candidate RSRP ratios. The largest RSRP ratio has the greatest impact in angle calculation.

[0264] - RSRP ratio, which defined as above.

[0265] - The index of resources associated with the other reference signals except a specified reference signal in the RSRP ratio calculation. The index of resources associated with the other reference signals except a specified reference signal in the RSRP ratio calculation is used to indicate the resource information of another reference signal participating in the RSRP ratio calculation in a reference signal set, except the specified reference signal. Optionally, the index of resources associated with the other reference signals except a specified reference signal in the RSRP ratio calculation may replace the indicator of an RSRP ratio. The specified reference signal may be a reference signal corresponding to the middle beam among the three corresponding beams in a reference signal set.

[0266] According to an example implementation of the embodiments of the present disclosure, the content reported by the UE may include:

[0267] Indicator of a reference signal setIndicator of an RSRP ratioRSRP ratio

[0268] The method of transmitting reference signals is not limited here. A method in which a group of reference signals are transmitted in multiple slots can be used, or a method in which multiple beams corresponding to multiple reference signals are transmitted in one slot can be used.

[0269] Compared with the reporting method using RSRP as the measurement quantity, the reporting method using RSRP ratio as the measurement quantity can save the reporting amount and save overhead. For example, the RSRP reporting method needs to report the RSRP measurement quantities as the numerator and denominator respectively, while the RSRP ratio reporting method only needs to report a ratio calculation result of the RSRP measurement quantities.

[0270] In a possible embodiment, when the RSRP ratio is used as the measurement quantity, the beam management method includes at least one of the following: the UE receives a RS configuration associated with not less than 3 overlapping beams; the UE receives a CSI report configuration associated with RSRP ratios; the UE measures and calculates the RSRP ratios; the UE reports two quantized RSRP ratios; the UE reports the quantized RSRP ratios and the indicators of the reference signal sets of the RSRP, and / or the indicators of the RSRP ratios; the UE receives information from the base station which is transmitted using an adjusted beam.

[0271] The example implementation of beam management using RSRP ratio as the measurement quantity may be as shown in FIG. 13, which may include a combination of one or more of the following:

[0272] Step 1301: the UE receives a RS configuration associated with not less than 3 overlapping beams;

[0273] Step 1302: the UE receives a CSI report configuration associated with RSRP ratios;

[0274] Step 1303: the UE measures and calculates the RSRP ratios;

[0275] Step 1304: the UE reports two quantized RSRP ratios;

[0276] Step 1305: the UE receives information from the base station which is transmitted using an adjusted beam;

[0277] Herein, the beam selection is based on a two-to-one mapping relationship.

[0278] When the measurement quantity to be reported is an equivalent channel estimation ratio, after receiving the equivalent channel estimation ratio, the BS uses a one-to-one mapping relationship between equivalent channel estimation ratios and angular information (for example, beam direction deviation) to obtain the angular information.

[0279] The equivalent channel estimation ratio can be defined as the following: assuming that there is a group of two reference signals, and the beam gains of the corresponding beams of the two reference signals have a complementary peak relationship. The equivalent channel estimation ratio may be defined as a ratio between the time domain channel estimation of a second reference signal therein (the reference signal whose corresponding beam's beam gain has a complementary peak with the beam gain of the corresponding beam of the first reference signal) and the time domain channel estimation of a first reference signal therein at the location where the time domain channel estimation of the first reference signal (the reference signal whose corresponding beam's center direction is the detection direction) has a peak. It may also be defined as a ratio of the frequency domain channel estimation accumulated value of the second reference signal and the frequency domain channel estimation of the first reference signal.

[0280] The method of reporting equivalent channel estimation ratios may be to report each of the equivalent channel estimation ratios. Since the equivalent channel estimate ratio is a complex number, the real and imaginary parts need to be reported respectively. Optionally, in some scenarios, if a value of the real part or imaginary part is small, the impact of which on the determination of angular information is small, it can be not reported to save overhead. In addition, groups of equivalent channel ratios needs to be reported separately for each of a horizontal direction (azimuth domain) and a vertical direction (elevation or zenith domain) to enable the performing of beam management in the horizontal and vertical directions simultaneously.

[0281] The reporting method using the equivalent channel estimation ratio as the measurement quantity is related to a beam management method based on equivalent channel estimation ratio. Compared with the management method based on RSRP ratio, such as the reported quantity is an RSRP or an RSRP ratio, the beam management method based on equivalent channel estimation ratio may have better robustness for channels which can work at line of sight (LOS) or non-line of sight (NLOS).

[0282] When the measurement quantity to be reported is a measurement quantity related to angular information, the BS can directly obtain the angular information and perform subsequent beam direction adjustments to achieve beam management.

[0283] The measurement quantity related to angular information reported by the UE may include at least one of the following: beam direction deviation, transmission angle, angle deviation, beam index, angle index, etc.

[0284] The beam direction deviation and a detection direction can be used to obtain the transmission angle.

[0285] The use of dynamic quantization to report measurement quantities related to angular information is suitable for cases where there are different quantization requirements for different areas, such as in a case where the beam angle ranges in an edge area and a central area are different, different quantization requirements are required for the reported angle accuracies.

[0286] The method in which the UE performs reporting according to different quantization requirements of different areas may include at least one of the following: the UE receives a configuration related to coarse angular information; the UE receives a transmission of information related to coarse angular information; the UE reports coarse angular information; the UE receives a configuration of a quantization mode for dynamic quantization; the UE receives a transmission of a reference signal related to an RSRP ratio or an RSRPP ratio or an equivalent channel estimation ratio; the UE performs measurement and calculation of a reported quantity; the UE reports a dynamic quantization result; and the UE receives information from the base station which is transmitted using an adjusted beam.

[0287] The configuration related to coarse angular information may include at least one of the following: a configuration for Synchronization Signal / PBCH block (SSB), such as a configuration for ssb-index-RSRP.

[0288] The UE receiving a transmission of information related to coarse angular information may include at least one of the following: the UE receives an SSB transmission from the base station.

[0289] The UE reporting coarse angular information may include at least one of the following: the UE reports ssb-index-RSRP.

[0290] The operations that the UE receives a configuration related to coarse angular information, the UE receives a transmission of information related to coarse angular information and the UE reports coarse angular information can enable the base station to obtain the coarse angular information of the UE, such as whether the UE is in an edge area or a central area, and to perform further dynamic quantization configuration according to this information.

[0291] An example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 6, which may include a combination of one or more of the following steps:

[0292] Step 1: the UE receives a CSI report configuration from the base station, which includes ssb-index-RSRP;

[0293] Step 2: the UE receives an SSB transmission from the base station;

[0294] Step 3: the UE reports ssb-index-RSRP;

[0295] Step 4: the UE receives a configuration of a quantization mode from the base station, where the quantization mode is determined by the base station based on the ssb-index-RSRP. The SSB-index-RSRP provides coarse angular information of the UE. The ssb-index-RSRP provides an index of an SSB with the largest RSRP. Since each SSB index corresponds to an angle range, coarse angular information of the UE can be obtained according to the index. The quantization mode may include the quantization modes for dynamic quantization described in the present disclosure.

[0296] Step 5: the UE receives a transmission of a reference signal related to an RSRP ratio or an RSRPP ratio or an equivalent channel estimation ratio;

[0297] Step 6: the UE reports the quantized measurement quantity;

[0298] Step 7 (optional): the UE receives a configuration again when the reported measurement quantity does not meet a requirement;

[0299] Step 8 (optional): the UE performs reporting again according to the new configuration;

[0300] Step 9: the UE receives information from the base station which is transmitted using an adjusted beam. Herein, the base station uses the received measurement quantity to adjust the beam direction.

[0301] It should be understood that the various example aspects, methods, steps, processes, etc. illustrated above in conjunction with the drawings may be implemented in combination in any manner depending on the application scenarios, and are not limited herein.

[0302] Next, FIG. 7 illustrates a flowchart of a method 700 performed by a user equipment (UE) in a wireless communication system according to embodiments of the present disclosure.

[0303] As shown in FIG. 7, a method 700 performed by a user equipment (UE) in a wireless communication system according to embodiments of the present disclosure may include: in step S701, receiving a reference signal from a base station; and in step S702, transmitting, to the base station, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes.

[0304] Optionally, the method in which the UE performs reporting according to different quantization requirements of different areas may further include at least one of the following: the UE receives a configuration related to coarse angular information; the UE receives configuration information related to a quantization mode of the coarse angular information; the UE receives a transmission of information related to coarse angular information; the UE reports coarse angular information; the UE receives a transmission of a reference signal related to an RSRP ratio or an RSRPP ratio or an equivalent channel estimation ratio; the UE performs measurement and calculation of a reported quantity; the UE reports a dynamic quantization result; and the UE receives information from the base station which is transmitted using an adjusted beam.

[0305] Optionally, the configuration information related to a quantization mode of the coarse angular information may include that each SSB index is associated with a measurement report mapping relationship index. In this way, after the UE reports ssb-index-RSRP to the base station, both the base station and the UE can determine the quantization mode for the measurement quantity (RSRP ratio or RSRPP ratio or equivalent channel estimation ratio) reported by the UE later according to the SSB index reported by the UE. Therefore, it is no longer necessary for the BS to configure additional quantization mode information for UE.

[0306] In a possible embodiment, an example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 11, which may include a combination of one or more of the following steps:

[0307] Step 1101: the UE receives a CSI report configuration from the base station, which includes ssb-index-RSRP;

[0308] Step 1102: the UE receives a CSI report configuration from the base station, which includes an association between SSB indexes and measurement report mapping relationship indexes;

[0309] Step 1103: the UE receives an SSB transmission from the base station;

[0310] Step 1104: the UE reports ssb-index-RSRP;

[0311] Step 1105: the UE receives a transmission of a reference signal related to an RSRP ratio or an RSRPP ratio or an equivalent channel estimation ratio;

[0312] Step 1106: the UE reports the quantized measurement quantity;

[0313] Step 1107 (optional): the UE receives a configuration again when the reported measurement quantity does not meet a requirement;

[0314] Step 1108 (optional): the UE performs reporting again according to the new configuration;

[0315] Step 1109: the UE receives information from the base station which is transmitted using an adjusted beam. Herein, the base station uses the received measurement quantity to adjust the beam direction.

[0316] In a possible embodiment, an example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 14, which may include a combination of one or more of the following steps:

[0317] Step 1401: the UE receives a CSI report configuration from the base station, which includes one or more of ssb-index-RSRP, an association between SSB indexes and measurement report mapping relationship indexes, parameters of the measurement report mapping relationship, etc.

[0318] Step 1402: the UE receives an SSB transmission from the base station;

[0319] Step 1403: the UE reports a CSI report, which may include an SSB index;

[0320] Step 1404: the UE receives a RS configuration associated with not less than 3 overlapping beams;

[0321] Step 1405: the UE receives a CSI report configuration associated with RSRP ratios;

[0322] Step 1406: the UE measures and calculates the RSRP ratios;

[0323] Step 1407: the UE reports two quantized RSRP ratios;

[0324] Step 1408: the UE receives information from the base station which is transmitted using an adjusted beam.

[0325] In a possible embodiment, an example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 15, which may include a combination of one or more of the following steps:

[0326] Step 1501: the UE transmits a CSI report configuration to the BS, which may include information related to one or more of table-based quantization method indication information, table index, table content, etc.;

[0327] Step 1502: the UE receives a CSI report from the BS, which may include quantized values according to the table.

[0328] In a possible embodiment, an example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 16, which may include a combination of one or more of the following steps:

[0329] Step 1601: the UE transmits a CSI report configuration to the BS, which may include information related to explicit value reporting with hybrid bit allocation;

[0330] Step 1602: the UE receives a CSI report from the BS, which may include a reported value of part 1 according to the fixed quantization bits and a reported value of part 2 according to the dynamic quantization bits.

[0331] In a possible embodiment, an example implementation in which the UE performs reporting according to different quantization requirements for different areas may be shown in FIG. 17, which may include a combination of one or more of the following steps:

[0332] Step 1701: the UE transmits a CSI report configuration to the BS, which may include information related to explicit value reporting with fixed quantization bits;

[0333] Step 1702: the UE receives a CSI report from the BS, which may include a reported value according to the fixed quantization bits with integer-fractional bit partitioning.

[0334] According to embodiments of the present disclosure, the method further includes: receiving first configuration information from the base station, wherein the first configuration information includes the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes.

[0335] According to embodiments of the present disclosure, the method further includes: receiving second configuration information from the base station, wherein the second configuration information includes a plurality of association relationships between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes; and receiving first information from the base station, wherein the first information indicates one of the plurality of association relationships.

[0336] According to embodiments of the present disclosure, the method further includes: receiving third configuration information from the base station, wherein the third configuration information includes at least one of: identification information on whether to use dynamic quantization, information related to a measurement quantity to be reported, wherein the measurement quantity to be reported includes at least one of: Reference Signal Received Power (RSRP), RSRP ratio, Equivalent Channel Estimation ratio, Reference Signal Received Path Power (RSRPP) ratio.

[0337] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a first association relationship, wherein the first association relationship includes at least one of: an association relationship between reported values of the measurement quantity and measurement value ranges, wherein the measurement value ranges in the association relationship is determined based on a plurality of measurement intervals and a plurality of quantization step sizes respectively corresponding to each of the plurality of measurement intervals, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, or an association relationship between reported values of the measurement quantity, measurement value ranges and quantization step sizes, wherein the plurality of quantization step sizes respectively corresponding to each of the measurement value ranges includes at least two different quantization step sizes, wherein the transmitting, to the base station, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes: determining a first reported value of the measurement quantity based on a first measurement value of the measurement quantity and the first association relationship, wherein the first measurement value is obtained based on the reference signal; and transmitting the first reported value to the base station.

[0338] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a second association relationship, wherein the second association relationship includes an association relationship between measurement intervals and scaling factors, and association relationships between reported values of the measurement quantity and measurement value ranges respectively corresponding to each scaling factor, wherein the scaling factors are associated with a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, wherein the transmitting, to the base station, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes: determining a first scaling factor based on a second measurement value of the measurement quantity and the association relationship between measurement intervals and scaling factors, wherein the second measurement value is obtained based on the reference signal; determining a second reported value of the measurement quantity based on the second measurement value and an association relationship between reported values of the measurement quantity and measurement value ranges corresponding to the first scaling factor; and transmitting the second reported value and the first scaling factor to the base station.

[0339] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a third association relationship, wherein the third association relationship includes an association relationship between measurement intervals of the measurement quantity and integer bit indicators representing an integer bit number of an integer portion of a quantization value, and association relationships between reported values of the measurement quantity and measurement value ranges respectively corresponding to each integer bit indicator, wherein the integer bit indicators are associated with a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, wherein the transmitting, to the base station, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes: determining a first integer bit indicator based on a third measurement value of the measurement quantity and an association relationship between measurement intervals of the measurement quantity and integer bit indicators, wherein the third measurement value is obtained based on the reference signal; determining a third reported value of the measurement quantity based on the third measurement value and an association relationship between reported values of the measurement quantity and measurement value ranges corresponding to the first integer bit indicator; and transmitting the third reported value and the first integer bit indicator to the base station.

[0340] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a fourth association relationship, wherein the fourth association relationship includes an association relationship between reported values of the measurement quantity and measurement value ranges, and an association relationship between measurement value ranges and dynamic quantization bit numbers, wherein the transmitting, to the base station, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes: determining a fourth reported value of the measurement quantity based on a fourth measurement value of the measurement quantity and the association relationship between reported values of the measurement quantity and measurement value ranges, wherein the fourth measurement value is obtained based on the reference signal; determining a first dynamic quantization bit number for quantizing the measurement quantity based on the fourth measurement value and the association relationship between measurement value ranges and dynamic quantization bit numbers; determining a fifth reported value of the measurement quantity based on the fourth measurement value and the first dynamic quantization bit number; and transmitting the fourth reported value and the fifth reported value to the base station.

[0341] According to embodiments of the present disclosure, the reporting information includes: a sixth reported value associated with a specified reference signal in a reference signal set, a seventh reported value associated with a reference signal with a greatest measurement value among the remaining reference signals in the reference signal set excluding the specified reference signal; and first identification information or an index of a resource associated with a reference signal corresponding to the seventh reported value, wherein the first identification information is used to identify an association relationship between the resource associated with the reference signal corresponding to the seventh reported value and a resource associated with the specified reference signal.

[0342] According to embodiments of the present disclosure, the reporting information includes: a first ratio based on an eighth reported value and a ninth reported value; wherein the eighth reported value is a reported value associated with a specified reference signal in a reference signal set, and the ninth reported value is a reported value of a reference signal with a greatest measurement value among the remaining reference signals in the reference signal set excluding the specified reference signal; and second identification information or an index of a resource associated with a reference signal corresponding to the ninth reported value, wherein the second identification information is used to identify an association relationship between the resource associated with the reference signal corresponding to the ninth reported value and a resource associated with the specified reference signal.

[0343] According to embodiments of the present disclosure, reference signals in the reference signal set includes a specified number of reference signals in a configured reference signal group, and beams related to resources associated with the reference signals in the reference signal set are adjacent to each other; wherein the reporting information further includes: third identification information indicating an index of the reference signal set in the reference signal group.

[0344] FIG. 8 illustrates a flowchart of a method 800 performed by a base station in a wireless communication system according to embodiments of the present disclosure.

[0345] As shown in FIG. 8, a method 800 performed by a base station in a wireless communication system according to embodiments of the present disclosure may include: in step S801, transmitting a reference signal to a user equipment (UE); and in step S802, receiving, from the UE, reporting information including reported values of a measurement quantity related to the reference signal based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes.

[0346] According to embodiments of the present disclosure, the method further includes: transmitting first configuration information to the UE, wherein the first configuration information includes the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes.

[0347] According to embodiments of the present disclosure, the method further includes: transmitting second configuration information to the UE, wherein the second configuration information includes a plurality of association relationships between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes; and transmitting first information to the UE, wherein the first information indicates one of the plurality of association relationships.

[0348] According to embodiments of the present disclosure, the method further includes: transmitting third configuration information to the UE, wherein the third configuration information includes at least one of: identification information on whether to use dynamic quantization, information related to a measurement quantity to be reported, wherein the measurement quantity to be reported includes at least one of: Reference Signal Received Power (RSRP), RSRP ratio, Equivalent Channel Estimation ratio, Reference Signal Received Path Power (RSRPP) ratio.

[0349] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a first association relationship, wherein the first association relationship includes at least one of: an association relationship between reported values of the measurement quantity and measurement value ranges, wherein the measurement value ranges in the association relationship is determined based on a plurality of measurement intervals and a plurality of quantization step sizes respectively corresponding to each of the plurality of measurement intervals, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, or an association relationship between reported values of the measurement quantity, measurement value ranges and quantization step sizes, wherein the plurality of quantization step sizes respectively corresponding to each of the measurement value ranges includes at least two different quantization step sizes, wherein the receiving, from the UE, reporting information including reported values of a measurement quantity related to the reference signal includes: receiving a first reported value of the measurement quantity from the UE, wherein the first reported value is determined based on a first measurement value of the measurement quantity and the first association relationship, wherein the first measurement value is obtained based on the reference signal.

[0350] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a second association relationship, wherein the second association relationship includes an association relationship between measurement intervals and scaling factors, and association relationships between reported values of the measurement quantity and measurement value ranges respectively corresponding to each scaling factor, wherein the scaling factors are associated with a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, wherein the receiving, from the UE, reporting information including reported values of a measurement quantity related to the reference signal includes: receiving, from the UE, a second reported value of the measurement quantity and a first scaling factor, wherein the second reported value is determined based on a second measurement value of the measurement quantity and an association relationship between reported values of the measurement quantity and measurement value ranges corresponding to the first scaling factor, wherein the first scaling factor is determined based on the second measurement value of the measurement quantity and the association relationship between measurement intervals and scaling factors, wherein the second measurement value is obtained based on the reference signal.

[0351] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a third association relationship, wherein the third association relationship includes an association relationship between measurement intervals of the measurement quantity and integer bit indicators representing an integer bit number of an integer portion of a quantization value, and association relationships between reported values of the measurement quantity and measurement value ranges respectively corresponding to each integer bit indicator, wherein the integer bit indicators are associated with a plurality of quantization step sizes, wherein the plurality of quantization step sizes includes at least two different quantization step sizes, wherein the plurality of quantization step sizes comprises at least two different quantization step sizes, wherein the receiving, from the UE, reporting information including reported values of a measurement quantity related to the reference signal includes: receiving, from the UE, a third reported value of the measurement quantity and a first integer bit indicator, wherein the third reported value is determined based on a third measurement value of the measurement quantity and an association relationship between reported values of the measurement quantity and measurement value ranges corresponding to the first integer bit indicator, wherein the first integer bit indicator is determined based on the third measurement value of the measurement quantity and an association relationship between measurement intervals of the measurement quantity and integer bit indicators, wherein the third measurement value is obtained based on the reference signal.

[0352] According to embodiments of the present disclosure, the association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes includes a fourth association relationship, wherein the fourth association relationship includes an association relationship between reported values of the measurement quantity and measurement value ranges, and an association relationship between measurement value ranges and dynamic quantization bit numbers, wherein the receiving, from the UE, reporting information including reported values of a measurement quantity related to the reference signal includes: receiving, from the UE, a fourth reported value and a fifth reported value of the measurement quantity, wherein the fourth reported value is determined based on a fourth measurement value of the measurement quantity and the association relationship between reported values of the measurement quantity and measurement value ranges, wherein the fourth measurement value is obtained based on the reference signal, wherein the fifth reported value is determined based on the fourth measurement value and a first dynamic quantization bit number for quantizing the measurement quantity, and wherein the first dynamic quantization bit number is determined based on the fourth measurement value and the association relationship between measurement value ranges and dynamic quantization bit numbers.

[0353] According to embodiments of the present disclosure, the reporting information includes: a sixth reported value associated with a specified reference signal in a reference signal set, a seventh reported value associated with a reference signal with a greatest measurement value among the remaining reference signals in the reference signal set excluding the specified reference signal; and first identification information or an index of a resource associated with a reference signal corresponding to the seventh reported value, wherein the first identification information is used to identify an association relationship between the resource associated with the reference signal corresponding to the seventh reported value and a resource associated with the specified reference signal.

[0354] According to embodiments of the present disclosure, the reporting information includes: a first ratio based on an eighth reported value and a ninth reported value; wherein the eighth reported value is a reported value associated with a specified reference signal in a reference signal set, and the ninth reported value is a reported value of a reference signal with a greatest measurement value among the remaining reference signals in the reference signal set excluding the specified reference signal; and second identification information or an index of a resource associated with a reference signal corresponding to the ninth reported value, wherein the second identification information is used to identify an association relationship between the resource associated with the reference signal corresponding to the ninth reported value and a resource associated with the specified reference signal.

[0355] According to embodiments of the present disclosure, reference signals in the reference signal set includes a specified number of reference signals in a configured reference signal group, and beams related to resources associated with the reference signals in the reference signal set are adjacent to each other; wherein the reporting information further includes: third identification information indicating an index of the reference signal set in the reference signal group.

[0356] It should be understood that methods 700 and 800, etc. according to embodiments of the present disclosure may further include any method or step described in conjunction with various examples, aspects, drawings, etc. of the present disclosure.

[0357] Next, FIG. 9 illustrates a schematic diagram of a base station 900 according to embodiments of the present disclosure.

[0358] As shown in FIG. 9, a base station 900 according to embodiments of the present disclosure may include a transceiver 910 and a processor 920. The transceiver 910 can be configured to transmit and receive signals. The processor 920 may be coupled to transceiver 910 and may be configured to (e.g., control transceiver 910 to) perform a method performed by a base station in a wireless communication system according to embodiments of the present disclosure.

[0359] FIG. 10 illustrates a schematic diagram of a user equipment (UE) 1000 according to embodiments of the present disclosure.

[0360] As shown in FIG. 10, a user equipment 1000 according to embodiments of the present disclosure may include a transceiver 1010 and a processor 1020. The transceiver 1010 can be configured to transmit and receive signals. The processor 1020 may be coupled to transceiver 1010 and may be configured to (e.g., control transceiver 1010 to) perform a method according to embodiments of the present disclosure performed by a user equipment (UE) in a wireless communication system. In the present disclosure, a processor may also be referred to as a controller.

[0361] Embodiments of the present disclosure also provide a computer-readable medium having stored thereon computer-readable instructions which, when executed by a processor, implement any method according to embodiments of the present disclosure.

[0362] Various embodiments of the present disclosure may be implemented as computer-readable codes embodied on a computer-readable recording medium from a specific perspective. A computer-readable recording medium is any data storage device that can store data readable by a computer system. Examples of computer-readable recording media may include read-only memory (ROM), random access memory (RAM), compact disk read-only memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, carrier wave (e.g., data transmission via the Internet), etc. Computer-readable recording media can be distributed by computer systems connected via a network, and thus computer-readable codes can be stored and executed in a distributed manner. Furthermore, functional programs, codes and code segments for implementing various embodiments of the present disclosure can be easily explained by those skilled in the art to which the embodiments of the present disclosure are applied.

[0363] It will be understood that the embodiments of the present disclosure may be implemented in the form of hardware, software, or a combination of hardware and software. The software may be stored as program instructions or computer-readable codes executable on a processor on a non-transitory computer-readable medium. Examples of non-transitory computer-readable recording media include magnetic storage media (such as ROM, floppy disk, hard disk, etc.) and optical recording media (such as CD-ROM, digital video disk (DVD), etc.). Non-transitory computer-readable recording media may also be distributed on computer systems coupled to a network, so that computer-readable codes are stored and executed in a distributed manner. The medium can be read by a computer, stored in a memory, and executed by a processor. Various embodiments may be implemented by a computer or a portable terminal including a controller and a memory, and the memory may be an example of a non-transitory computer-readable recording medium suitable for storing program (s) with instructions for implementing embodiments of the present disclosure. The present disclosure may be realized by a program with code for concretely implementing the apparatus and method described in the claims, which is stored in a machine (or computer)-readable storage medium. The program may be electronically carried on any medium, such as a communication signal transmitted via a wired or wireless connection, and the present disclosure suitably includes its equivalents.

[0364] What has been described above is only the specific implementation of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Anyone who is familiar with this technical field may make various changes or substitutions within the technical scope disclosed in the present disclosure, and these changes or substitutions should be covered within the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1.A method performed by a user equipment (UE) in a wireless communication system, the method comprising:receiving, from a base station, configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration;receiving, from the base station, a reference signal based on the configuration information;determining measurement information based on the reference signal;determining a CSI report including reporting information for a measurement quantity based on the measurement information and the configuration information, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes; andtransmitting, to the base station, the CSI report.2.The method of claim 1,wherein the measurement quantity includes at least one of a reference signal received power (RSRP) ratio, an equivalent channel estimation ratio, or a reference signal received path power (RSRPP) ratio.3.The method of claim 1,wherein the configuration information includes quantization-related information indicating at least one of a quantization mode indication, a scaling factor, an integer bit indicator, or a dynamic quantization bit number for generating the reporting information.4.The method of claim 1,wherein the association relationship comprises an association relationship between measurement intervals and scaling factors, and an association relationship between the reporting information and measurement value ranges respectively corresponding to each scaling factor.5.The method of claim 1,wherein the association relationship comprises at least one of:an association relationship between measurement intervals and integer bit indicators representing an integer bit number of an integer portion of a quantization value, oran association relationship between the reporting information and measurement value ranges respectively corresponding to each integer bit indicator; or an association relationship between measurement value ranges and dynamic quantization bit numbers for quantizing the measurement quantity.6.A method performed by a base station in a wireless communication system, the method comprising:transmitting, to a user equipment (UE), configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration;transmitting, to the UE, a reference signal based on the configuration information; andreceiving, from the UE, a CSI report including reporting information for a measurement quantity, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes.7.The method of claim 6,wherein the measurement quantity includes at least one of a reference signal received power (RSRP) ratio, an equivalent channel estimation ratio, or a reference signal received path power (RSRPP) ratio.8.The method of claim 6,wherein the association relationship comprises an association relationship between measurement intervals and scaling factors, and an association relationship between the reporting information and measurement value ranges respectively corresponding to each scaling factor.9.A user equipment (UE) in a wireless communication system, the UE comprising:at least one transceiver;at least one processor communicatively coupled to the at least one transceiver; andmemory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the UE to:receive, from a base station, configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration,receive, from the base station, a reference signal based on the configuration information,determine measurement information based on the reference signal,determine a CSI report including reporting information for a measurement quantity based on the measurement information and the configuration information, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes, andtransmit, to the base station, the CSI report.10.The UE of claim 9,wherein the measurement quantity includes at least one of a reference signal received power (RSRP) ratio, an equivalent channel estimation ratio, or a reference signal received path power (RSRPP) ratio.11.The UE of claim 9,wherein the configuration information includes quantization-related information indicating at least one of a quantization mode indication, a scaling factor, an integer bit indicator, or a dynamic quantization bit number for generating the reporting information.12.The UE of claim 9,wherein the association relationship comprises an association relationship between measurement intervals and scaling factors, and an association relationship between the reporting information and measurement value ranges respectively corresponding to each scaling factor.13.The UE of claim 9,wherein the association relationship comprises at least one of:an association relationship between measurement intervals and integer bit indicators representing an integer bit number of an integer portion of a quantization value, oran association relationship between the reporting information and measurement value ranges respectively corresponding to each integer bit indicator; or an association relationship between measurement value ranges and dynamic quantization bit numbers for quantizing the measurement quantity.14.A base station in a wireless communication system, the base station comprising:at least one transceiver;at least one processor communicatively coupled to the at least one transceiver; andmemory, communicatively coupled to the at least one processor, storing instructions executable by the at least one processor individually or in any combination to cause the base station to:transmit, to a user equipment (UE), configuration information including information for a channel state information (CSI) resource configuration and information for a CSI report configuration,transmit, to the UE, a reference signal based on the configuration information, andreceive, from the UE, a CSI report including reporting information for a measurement quantity, wherein the reporting information is determined based on an association relationship between a plurality of measurement value ranges of the measurement quantity and a plurality of quantization step sizes comprising at least two different quantization step sizes.15.The base station of claim 14,wherein the measurement quantity includes at least one of a reference signal received power (RSRP) ratio, an equivalent channel estimation ratio, or a reference signal received path power (RSRPP) ratio.

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